Set LWIP_VERSION_RC to RC1

Simon and I think it can be removed - the receive window handling get a little less precise, but that should be OK for a lightweight stack.
Receive window is now updated with the whole pbuf size (instead of only count of read bytes from socket) as soon as socket implementation gets a pbuf from netconn layer.
Work on bug #47512: MPU_COMPATIBLE may fail on empty pool (still not finished)

.gitattributes

@@ -0,0 +1,4 @@
+# These files are text and should be normalized
+*.txt     text
+*.c       text
+*.h       text

.gitignore

@@ -0,0 +1,12 @@
+/src/apps/snmp/LwipMibCompiler/CCodeGeneration/bin/
+/src/apps/snmp/LwipMibCompiler/CCodeGeneration/obj/
+/src/apps/snmp/LwipMibCompiler/LwipMibCompiler/bin/
+/src/apps/snmp/LwipMibCompiler/LwipMibCompiler/obj/
+/src/apps/snmp/LwipMibCompiler/LwipMibViewer/bin/
+/src/apps/snmp/LwipMibCompiler/LwipMibViewer/obj/
+/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/bin/
+/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/obj/
+/src/apps/snmp/LwipMibCompiler/SharpSnmpLib/bin/
+/src/apps/snmp/LwipMibCompiler/SharpSnmpLib/obj/
+/src/apps/snmp/LwipMibCompiler/LwipMibCompiler.userprefs
+/src/apps/snmp/LwipMibCompiler/*.suo

README

@@ -40,22 +40,19 @@ and additions to the stack to further increase its usefulness.
 
 Development of lwIP is hosted on Savannah, a central point for
 software development, maintenance and distribution. Everyone can
-help improve lwIP by use of Savannah's interface, CVS and the
+help improve lwIP by use of Savannah's interface, Git and the
 mailing list. A core team of developers will commit changes to the
-CVS source tree.
+Git source tree.
 
-The lwIP TCP/IP stack is maintained in the 'lwip' CVS module and
-contributions (such as platform ports) are in the 'contrib' module.
+The lwIP TCP/IP stack is maintained in the 'lwip' Git module and
+contributions (such as platform ports) are in the 'contrib' Git module.
 
-See doc/savannah.txt for details on CVS server access for users and
+See doc/savannah.txt for details on Git server access for users and
 developers.
 
-Last night's CVS tar ball can be downloaded from:
-  http://savannah.gnu.org/cvs.backups/lwip.tar.gz [CHANGED - NEEDS FIXING]
-
-The current CVS trees are web-browsable:
-  http://savannah.nongnu.org/cgi-bin/viewcvs/lwip/lwip/
-  http://savannah.nongnu.org/cgi-bin/viewcvs/lwip/contrib/
+The current Git trees are web-browsable:
+  http://git.savannah.gnu.org/cgit/lwip.git
+  http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git
 
 Submit patches and bugs via the lwIP project page:
   http://savannah.nongnu.org/projects/lwip/
@@ -68,7 +65,7 @@ lwIP are at the official lwIP home page:
   http://www.sics.se/~adam/lwip/
 
 Self documentation of the source code is regularly extracted from the
-current CVS sources and is available from this web page:
+current Git sources and is available from this web page:
   http://www.nongnu.org/lwip/
 
 There is now a constantly growin wiki about lwIP at

UPGRADING

@@ -4,10 +4,14 @@ application written for an older version of lwIP to correctly work
 with newer versions.
 
 
-(CVS HEAD)
+(git master)
 
   * [Enter new changes just after this line - do not remove this line]
 
+  * TODO
+
+(1.4.0)
+
   ++ Application changes:
 
   * Replaced struct ip_addr by typedef ip_addr_t (struct ip_addr is kept for

doc/contrib.txt

@@ -34,7 +34,7 @@ features of Savannah help us not lose users' input.
 2.3 Bug reports and patches:
 
 1. Make sure you are reporting bugs or send patches against the latest
-   sources. (From the latest release and/or the current CVS sources.)
+   sources. (From the latest release and/or the current Git sources.)
 2. If you think you found a bug make sure it's not already filed in the
    bugtracker at Savannah.
 3. If you have a fix put the patch on Savannah. If it is a patch that affects
@@ -46,18 +46,13 @@ features of Savannah help us not lose users' input.
 4. Do not file a bug and post a fix to it to the patch area. Either a bug report
    or a patch will be enough.
    If you correct an existing bug then attach the patch to the bug rather than creating a new entry in the patch area.
-5. Trivial patches (compiler warning, indentation and spelling fixes or anything obvious which takes a line or two)
-   can go to the lwip-users list. This is still the fastest way of interaction and the list is not so crowded
-   as to allow for loss of fixes. Putting bugs on Savannah and subsequently closing them is too much an overhead
-   for reporting a compiler warning fix.
-6. Patches should be specific to a single change or to related changes.Do not mix bugfixes with spelling and other
-   trivial fixes unless the bugfix is trivial too.Do not reorganize code and rename identifiers in the same patch you
-   change behaviour if not necessary.A patch is easier to read and understand if it's to the point and short than
+5. Patches should be specific to a single change or to related changes. Do not mix bugfixes with spelling and other
+   trivial fixes unless the bugfix is trivial too. Do not reorganize code and rename identifiers in the same patch you
+   change behaviour if not necessary. A patch is easier to read and understand if it's to the point and short than
    if it's not to the point and long :) so the chances for it to be applied are greater. 
 
 2.4 Platform porters:
 
 1. If you have ported lwIP to a platform (an OS, a uC/processor or a combination of these) and
    you think it could benefit others[1] you might want discuss this on the mailing list. You
-   can also ask for CVS access to submit and maintain your port in the contrib CVS module.
-   
+   can also ask for Git access to submit and maintain your port in the contrib Git module.

doc/doxygen/lwip.Doxyfile

@@ -0,0 +1,292 @@
+# Doxyfile 1.5.4
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+DOXYFILE_ENCODING      = UTF-8
+PROJECT_NAME           = "lwIP 1.3.0"
+PROJECT_NUMBER         = "lwIP 1.3.0"
+OUTPUT_DIRECTORY       = C:/OPENSOURCE/LwIP/doxygen
+CREATE_SUBDIRS         = NO
+OUTPUT_LANGUAGE        = English
+BRIEF_MEMBER_DESC      = YES
+REPEAT_BRIEF           = YES
+ABBREVIATE_BRIEF       = "The $name class       " \
+                         "The $name widget       " \
+                         "The $name file       " \
+                         is \
+                         provides \
+                         specifies \
+                         contains \
+                         represents \
+                         a \
+                         an \
+                         the
+ALWAYS_DETAILED_SEC    = NO
+INLINE_INHERITED_MEMB  = NO
+FULL_PATH_NAMES        = YES
+STRIP_FROM_PATH        = C:\OPENSOURCE\lwip
+STRIP_FROM_INC_PATH    = C:\OPENSOURCE\lwip
+SHORT_NAMES            = NO
+JAVADOC_AUTOBRIEF      = NO
+QT_AUTOBRIEF           = NO
+MULTILINE_CPP_IS_BRIEF = NO
+DETAILS_AT_TOP         = NO
+INHERIT_DOCS           = YES
+SEPARATE_MEMBER_PAGES  = NO
+TAB_SIZE               = 8
+ALIASES                = 
+OPTIMIZE_OUTPUT_FOR_C  = YES
+OPTIMIZE_OUTPUT_JAVA   = NO
+BUILTIN_STL_SUPPORT    = NO
+CPP_CLI_SUPPORT        = NO
+SIP_SUPPORT            = NO
+DISTRIBUTE_GROUP_DOC   = NO
+SUBGROUPING            = YES
+TYPEDEF_HIDES_STRUCT   = NO
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+EXTRACT_ALL            = NO
+EXTRACT_PRIVATE        = NO
+EXTRACT_STATIC         = NO
+EXTRACT_LOCAL_CLASSES  = YES
+EXTRACT_LOCAL_METHODS  = NO
+EXTRACT_ANON_NSPACES   = NO
+HIDE_UNDOC_MEMBERS     = YES
+HIDE_UNDOC_CLASSES     = YES
+HIDE_FRIEND_COMPOUNDS  = NO
+HIDE_IN_BODY_DOCS      = NO
+INTERNAL_DOCS          = NO
+CASE_SENSE_NAMES       = NO
+HIDE_SCOPE_NAMES       = NO
+SHOW_INCLUDE_FILES     = YES
+INLINE_INFO            = YES
+SORT_MEMBER_DOCS       = YES
+SORT_BRIEF_DOCS        = NO
+SORT_BY_SCOPE_NAME     = NO
+GENERATE_TODOLIST      = YES
+GENERATE_TESTLIST      = YES
+GENERATE_BUGLIST       = YES
+GENERATE_DEPRECATEDLIST= YES
+ENABLED_SECTIONS       = 
+MAX_INITIALIZER_LINES  = 30
+SHOW_USED_FILES        = YES
+SHOW_DIRECTORIES       = YES
+FILE_VERSION_FILTER    = 
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+QUIET                  = NO
+WARNINGS               = YES
+WARN_IF_UNDOCUMENTED   = YES
+WARN_IF_DOC_ERROR      = YES
+WARN_NO_PARAMDOC       = NO
+WARN_FORMAT            = "$file:$line: $text       "
+WARN_LOGFILE           = 
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+INPUT                  = C:\OPENSOURCE\lwip\lwip
+INPUT_ENCODING         = UTF-8
+FILE_PATTERNS          = *.c \
+                         *.cc \
+                         *.cxx \
+                         *.cpp \
+                         *.c++ \
+                         *.java \
+                         *.ii \
+                         *.ixx \
+                         *.ipp \
+                         *.i++ \
+                         *.inl \
+                         *.h \
+                         *.hh \
+                         *.hxx \
+                         *.hpp \
+                         *.h++ \
+                         *.idl \
+                         *.odl \
+                         *.cs \
+                         *.php \
+                         *.php3 \
+                         *.inc \
+                         *.m \
+                         *.mm \
+                         *.dox
+RECURSIVE              = YES
+EXCLUDE                = 
+EXCLUDE_SYMLINKS       = NO
+EXCLUDE_PATTERNS       = 
+EXCLUDE_SYMBOLS        = 
+EXAMPLE_PATH           = 
+EXAMPLE_PATTERNS       = *
+EXAMPLE_RECURSIVE      = NO
+IMAGE_PATH             = 
+INPUT_FILTER           = 
+FILTER_PATTERNS        = 
+FILTER_SOURCE_FILES    = NO
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+SOURCE_BROWSER         = NO
+INLINE_SOURCES         = NO
+STRIP_CODE_COMMENTS    = YES
+REFERENCED_BY_RELATION = NO
+REFERENCES_RELATION    = NO
+REFERENCES_LINK_SOURCE = YES
+USE_HTAGS              = NO
+VERBATIM_HEADERS       = NO
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+ALPHABETICAL_INDEX     = NO
+COLS_IN_ALPHA_INDEX    = 5
+IGNORE_PREFIX          = 
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+GENERATE_HTML          = YES
+HTML_OUTPUT            = C:/OPENSOURCE/lwIP/doxygen/output/html
+HTML_FILE_EXTENSION    = .html
+HTML_HEADER            = 
+HTML_FOOTER            = 
+HTML_STYLESHEET        = 
+HTML_ALIGN_MEMBERS     = YES
+GENERATE_HTMLHELP      = NO
+HTML_DYNAMIC_SECTIONS  = NO
+CHM_FILE               = lwip.chm
+HHC_LOCATION           = 
+GENERATE_CHI           = NO
+BINARY_TOC             = NO
+TOC_EXPAND             = NO
+DISABLE_INDEX          = NO
+ENUM_VALUES_PER_LINE   = 4
+GENERATE_TREEVIEW      = YES
+TREEVIEW_WIDTH         = 250
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+GENERATE_LATEX         = NO
+LATEX_OUTPUT           = latex
+LATEX_CMD_NAME         = latex
+MAKEINDEX_CMD_NAME     = makeindex
+COMPACT_LATEX          = NO
+PAPER_TYPE             = a4wide
+EXTRA_PACKAGES         = 
+LATEX_HEADER           = 
+PDF_HYPERLINKS         = NO
+USE_PDFLATEX           = NO
+LATEX_BATCHMODE        = NO
+LATEX_HIDE_INDICES     = NO
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+GENERATE_RTF           = YES
+RTF_OUTPUT             = C:/OPENSOURCE/lwIP/doxygen/output/rtf
+COMPACT_RTF            = NO
+RTF_HYPERLINKS         = NO
+RTF_STYLESHEET_FILE    = 
+RTF_EXTENSIONS_FILE    = 
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+GENERATE_MAN           = NO
+MAN_OUTPUT             = man
+MAN_EXTENSION          = .3
+MAN_LINKS              = NO
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+GENERATE_XML           = NO
+XML_OUTPUT             = xml
+XML_SCHEMA             = 
+XML_DTD                = 
+XML_PROGRAMLISTING     = YES
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+GENERATE_AUTOGEN_DEF   = NO
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+GENERATE_PERLMOD       = NO
+PERLMOD_LATEX          = NO
+PERLMOD_PRETTY         = YES
+PERLMOD_MAKEVAR_PREFIX = 
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+ENABLE_PREPROCESSING   = NO
+MACRO_EXPANSION        = YES
+EXPAND_ONLY_PREDEF     = NO
+SEARCH_INCLUDES        = YES
+INCLUDE_PATH           = C:\OPENSOURCE\lwip\lwip
+INCLUDE_FILE_PATTERNS  = 
+PREDEFINED             = NO_SYS=0 \
+                         SYS_LIGHTWEIGHT_PROT=1 \
+                         LWIP_ICMP=1 \
+                         LWIP_RAW=1 \
+                         LWIP_DHCP=1 \
+                         LWIP_UDPLITE=1 \
+                         LWIP_UDP=1 \
+                         LWIP_IGMP=1 \
+                         LWIP_TCP=1 \
+                         LWIP_SNMP=1 \
+                         MEMP_OVERFLOW_CHECK=1 \
+                         MEMP_SANITY_CHECK=1 \
+                         LWIP_ARP=1 \
+                         LWIP_NETIF_HOSTNAME=1 \
+                         LWIP_NETIF_API=1 \
+                         LWIP_NETIF_CALLBACK=1 \
+                         LWIP_NETIF_LINK_CALLBACK=1 \
+                         LWIP_AUTOIP=1 \
+                         ARP_QUEUEING=1 \
+                         LWIP_STATS=1 \
+                         MEM_USE_POOLS=0 \
+                         LWIP_DNS=1 \
+                         LWIP_SOCKETS=1 \
+                         LWIP_NETCONN=1 \
+                         "LWIP_DNS && LWIP_SOCKET   " \
+                         "(LWIP_DNS && LWIP_SOCKET)=1   "
+EXPAND_AS_DEFINED      = 
+SKIP_FUNCTION_MACROS   = NO
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references   
+#---------------------------------------------------------------------------
+TAGFILES               = 
+GENERATE_TAGFILE       = 
+ALLEXTERNALS           = NO
+EXTERNAL_GROUPS        = YES
+PERL_PATH              = /usr/bin/perl
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+CLASS_DIAGRAMS         = YES
+MSCGEN_PATH            = 
+HIDE_UNDOC_RELATIONS   = YES
+HAVE_DOT               = NO
+CLASS_GRAPH            = YES
+COLLABORATION_GRAPH    = YES
+GROUP_GRAPHS           = YES
+UML_LOOK               = NO
+TEMPLATE_RELATIONS     = NO
+INCLUDE_GRAPH          = YES
+INCLUDED_BY_GRAPH      = YES
+CALL_GRAPH             = NO
+CALLER_GRAPH           = NO
+GRAPHICAL_HIERARCHY    = YES
+DIRECTORY_GRAPH        = YES
+DOT_IMAGE_FORMAT       = png
+DOT_PATH               = 
+DOTFILE_DIRS           = 
+DOT_GRAPH_MAX_NODES    = 50
+MAX_DOT_GRAPH_DEPTH    = 1000
+DOT_TRANSPARENT        = NO
+DOT_MULTI_TARGETS      = NO
+GENERATE_LEGEND        = YES
+DOT_CLEANUP            = YES
+#---------------------------------------------------------------------------
+# Configuration::additions related to the search engine   
+#---------------------------------------------------------------------------
+SEARCHENGINE           = NO

doc/doxygen/main_page.h

@@ -0,0 +1,47 @@
+/*! \mainpage lwIP Documentation
+ *
+ * \section intro_sec Introduction
+ *
+ * lwIP is a small independent implementation of the TCP/IP protocol suite that has been developed by Adam Dunkels at the Computer and Networks Architectures (CNA) lab at the Swedish Institute of Computer Science (SICS).
+ *
+ * The focus of the lwIP TCP/IP implementation is to reduce resource usage while still having a full scale TCP. This making lwIP suitable for use in embedded systems with tens of kilobytes of free RAM and room for around 40 kilobytes of code ROM.
+ *
+ * \section lwip_features_sec lwIP features:
+ *
+ * \li \c IP (Internet Protocol) including packet forwarding over multiple network interfaces\n
+ * \li \c ICMP (Internet Control Message Protocol) for network maintenance and debugging\n
+ * \li \c IGMP (Internet Group Management Protocol) for multicast traffic management\n
+ * \li \c UDP (User Datagram Protocol) including experimental UDP-lite extensions\n
+ * \li \c TCP (Transmission Control Protocol) with congestion control, RTT estimation and fast recovery/fast retransmit\n
+ * \li \c raw/native API for enhanced performance\n
+ * \li \c Optional Berkeley-like socket API\n
+ * \li \c DNS (Domain names resolver)\n
+ * \li \c SNMP (Simple Network Management Protocol)\n
+ * \li \c DHCP (Dynamic Host Configuration Protocol)\n
+ * \li \c AUTOIP (for IPv4, conform with RFC 3927)\n
+ * \li \c PPP (Point-to-Point Protocol)\n
+ * \li \c ARP (Address Resolution Protocol) for Ethernet\n
+ *
+ * \section install_sec Documentation
+ *
+ * Development of lwIP is hosted on Savannah, a central point for software development, maintenance and distribution. Everyone can help improve lwIP by use of Savannah's interface, Git and the mailing list. A core team of developers will commit changes to the Git source tree.\n
+ *   http://savannah.nongnu.org/projects/lwip/\n
+ * \n
+ * The original out-dated homepage of lwIP and Adam Dunkels' papers on lwIP are at the official lwIP home page:\n
+ *   http://www.sics.se/~adam/lwip/\n
+ * \n
+ * Self documentation of the source code is regularly extracted from the current Git sources and is available from this web page:\n
+ *   http://www.nongnu.org/lwip/\n
+ * \n
+ * There is now a constantly growin wiki about lwIP at\n
+ *   http://lwip.wikia.com/\n
+ * \n
+ * Also, there are mailing lists you can subscribe at\n
+ *   http://savannah.nongnu.org/mail/?group=lwip\n
+ * plus searchable archives:\n
+ *   http://lists.nongnu.org/archive/html/lwip-users/\n
+ *   http://lists.nongnu.org/archive/html/lwip-devel/\n
+ * \n
+ * Reading Adam's papers, the files in docs/, browsing the source code documentation and browsing the mailing list archives is a good way to become familiar with the design of lwIP.\n
+ *
+ */

doc/ppp.txt

@@ -0,0 +1,423 @@
+PPP interface for lwIP
+
+Author: Sylvain Rochet
+
+Table of Contents:
+
+1 - Supported PPP protocols and features
+2 - Raw API PPP example for all protocols
+3 - PPPoS input path (raw API, IRQ safe API, TCPIP API)
+4 - Thread safe PPP API (PPPAPI)
+5 - Upgrading from lwIP <= 1.4.x to lwIP >= 1.5.x
+
+
+
+1 Supported PPP protocols and features
+======================================
+
+Supported Low level protocols:
+* PPP over serial using HDLC-like framing, such as wired dialup modems
+  or mobile telecommunications GPRS/EDGE/UMTS/HSPA+/LTE modems
+* PPP over Ethernet, such as xDSL modems
+* PPP over L2TP (Layer 2 Tunneling Protocol) LAC (L2TP Access Concentrator),
+  IP tunnel over UDP, such as VPN access
+
+Supported auth protocols:
+* PAP, Password Authentication Protocol
+* CHAP, Challenge-Handshake Authentication Protocol, also known as CHAP-MD5
+* MSCHAPv1, Microsoft version of CHAP, version 1
+* MSCHAPv2, Microsoft version of CHAP, version 2
+* EAP, Extensible Authentication Protocol
+
+Supported address protocols:
+* IPCP, IP Control Protocol, IPv4 addresses negotiation
+* IP6CP, IPv6 Control Protocol, IPv6 link-local addresses negotiation
+
+Supported encryption protocols:
+* MPPE, Microsoft Point-to-Point Encryption
+
+Supported compression or miscellaneous protocols, for serial links only:
+* PFC, Protocol Field Compression
+* ACFC, Address-and-Control-Field-Compression
+* ACCM, Asynchronous-Control-Character-Map
+* VJ, Van Jacobson TCP/IP Header Compression
+
+
+
+2 Raw API PPP example for all protocols
+=======================================
+
+As usual, raw API for lwIP means the lightweight API which *MUST* only be used
+for NO_SYS=1 systems or called inside lwIP core thread for NO_SYS=0 systems.
+
+/*
+ * Globals
+ * =======
+ */
+
+/* The PPP control block */
+ppp_pcb *ppp;
+
+/* The PPP IP interface */
+struct netif ppp_netif;
+
+
+/*
+ * PPP status callback
+ * ===================
+ *
+ * PPP status callback is called on PPP status change (up, down, …) from lwIP
+ * core thread
+ */
+
+/* PPP status callback example */
+static void status_cb(ppp_pcb *pcb, int err_code, void *ctx) {
+  struct netif *pppif = ppp_netif(pcb);
+  LWIP_UNUSED_ARG(ctx);
+
+  switch(err_code) {
+    case PPPERR_NONE: {
+#if LWIP_DNS
+      ip_addr_t ns;
+#endif /* LWIP_DNS */
+      printf("status_cb: Connected\n");
+#if PPP_IPV4_SUPPORT
+      printf("   our_ipaddr  = %s\n", ipaddr_ntoa(&pppif->ip_addr));
+      printf("   his_ipaddr  = %s\n", ipaddr_ntoa(&pppif->gw));
+      printf("   netmask     = %s\n", ipaddr_ntoa(&pppif->netmask));
+#if LWIP_DNS
+      ns = dns_getserver(0);
+      printf("   dns1        = %s\n", ipaddr_ntoa(&ns));
+      ns = dns_getserver(1);
+      printf("   dns2        = %s\n", ipaddr_ntoa(&ns));
+#endif /* LWIP_DNS */
+#endif /* PPP_IPV4_SUPPORT */
+#if PPP_IPV6_SUPPORT
+      printf("   our6_ipaddr = %s\n", ip6addr_ntoa(netif_ip6_addr(pppif, 0)));
+#endif /* PPP_IPV6_SUPPORT */
+      break;
+    }
+    case PPPERR_PARAM: {
+      printf("status_cb: Invalid parameter\n");
+      break;
+    }
+    case PPPERR_OPEN: {
+      printf("status_cb: Unable to open PPP session\n");
+      break;
+    }
+    case PPPERR_DEVICE: {
+      printf("status_cb: Invalid I/O device for PPP\n");
+      break;
+    }
+    case PPPERR_ALLOC: {
+      printf("status_cb: Unable to allocate resources\n");
+      break;
+    }
+    case PPPERR_USER: {
+      printf("status_cb: User interrupt\n");
+      break;
+    }
+    case PPPERR_CONNECT: {
+      printf("status_cb: Connection lost\n");
+      break;
+    }
+    case PPPERR_AUTHFAIL: {
+      printf("status_cb: Failed authentication challenge\n");
+      break;
+    }
+    case PPPERR_PROTOCOL: {
+      printf("status_cb: Failed to meet protocol\n");
+      break;
+    }
+    case PPPERR_PEERDEAD: {
+      printf("status_cb: Connection timeout\n");
+      break;
+    }
+    case PPPERR_IDLETIMEOUT: {
+      printf("status_cb: Idle Timeout\n");
+      break;
+    }
+    case PPPERR_CONNECTTIME: {
+      printf("status_cb: Max connect time reached\n");
+      break;
+    }
+    case PPPERR_LOOPBACK: {
+      printf("status_cb: Loopback detected\n");
+      break;
+    }
+    default: {
+      printf("status_cb: Unknown error code %d\n", err_code);
+      break;
+    }
+  }
+
+/*
+ * This should be in the switch case, this is put outside of the switch
+ * case for example readability.
+ */
+
+  if (err_code == PPPERR_NONE) {
+    return;
+  }
+
+  /* ppp_close() was previously called, don't reconnect */
+  if (err_code == PPPERR_USER) {
+    /* ppp_free(); -- can be called here */
+    return;
+  }
+
+  /*
+   * Try to reconnect in 30 seconds, if you need a modem chatscript you have
+   * to do a much better signaling here ;-)
+   */
+  ppp_connect(pcb, 30);
+}
+
+
+/*
+ * Creating a new PPPoS session
+ * ============================
+ *
+ * In lwIP, PPPoS is not PPPoSONET, in lwIP PPPoS is PPPoSerial.
+ */
+
+#include "netif/ppp/pppos.h"
+
+/*
+ * PPPoS serial output callback
+ *
+ * ppp_pcb, PPP control block
+ * data, buffer to write to serial port
+ * len, length of the data buffer
+ * ctx, optional user-provided callback context pointer
+ *
+ * Return value: len if write succeed
+ */
+static u32_t output_cb(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx) {
+  return uart_write(UART, data, len);
+}
+
+/*
+ * Create a new PPPoS interface
+ *
+ * ppp_netif, netif to use for this PPP link, i.e. PPP IP interface
+ * output_cb, PPPoS serial output callback
+ * status_cb, PPP status callback, called on PPP status change (up, down, …)
+ * ctx_cb, optional user-provided callback context pointer
+ */
+ppp = pppos_create(&ppp_netif,
+       output_cb, status_cb, ctx_cb);
+
+
+/*
+ * Creating a new PPPoE session
+ * ============================
+ */
+
+#include "netif/ppp/pppoe.h"
+
+/*
+ * Create a new PPPoE interface
+ *
+ * ppp_netif, netif to use for this PPP link, i.e. PPP IP interface
+ * ethif, already existing and setup Ethernet interface to use
+ * service_name, PPPoE service name discriminator (not supported yet)
+ * concentrator_name, PPPoE concentrator name discriminator (not supported yet)
+ * status_cb, PPP status callback, called on PPP status change (up, down, …)
+ * ctx_cb, optional user-provided callback context pointer
+ */
+ppp = pppoe_create(&ppp_netif,
+       &ethif,
+       service_name, concentrator_name,
+       status_cb, ctx_cb);
+
+
+/*
+ * Creating a new PPPoL2TP session
+ * ===============================
+ */
+
+#include "netif/ppp/pppol2tp.h"
+
+/*
+ * Create a new PPPoL2TP interface
+ *
+ * ppp_netif, netif to use for this PPP link, i.e. PPP IP interface
+ * netif, optional already existing and setup output netif, necessary if you
+ *        want to set this interface as default route to settle the chicken
+ *        and egg problem with VPN links
+ * ipaddr, IP to connect to
+ * port, UDP port to connect to (usually 1701)
+ * secret, L2TP secret to use
+ * secret_len, size in bytes of the L2TP secret
+ * status_cb, PPP status callback, called on PPP status change (up, down, …)
+ * ctx_cb, optional user-provided callback context pointer
+ */
+ppp = pppol2tp_create(&ppp_netif,
+       struct netif *netif, ip_addr_t *ipaddr, u16_t port,
+       u8_t *secret, u8_t secret_len,
+       ppp_link_status_cb_fn link_status_cb, void *ctx_cb);
+
+
+/*
+ * PPP link configuration
+ * ======================
+ */
+
+/* Auth configuration, this is pretty self-explanatory */
+ppp_set_auth(ppp, PPPAUTHTYPE_ANY, "login", "password");
+
+/* Set this interface as default route */
+ppp_set_default(ppp);
+
+
+/*
+ * Initiate PPP connection
+ * =======================
+ */
+
+/*
+ * Initiate PPP negotiation, without waiting (holdoff=0), can only be called
+ * if PPP session is in the dead state (i.e. disconnected).
+ */
+u16_t holdoff = 0;
+ppp_connect(ppp, holdoff);
+
+
+/*
+ * Closing PPP connection
+ * ======================
+ */
+
+/*
+ * Initiate the end of the PPP session, without carrier lost signal
+ * (nocarrier=0), meaning a clean shutdown of PPP protocols.
+ * You can call this function at anytime.
+ */
+u8_t nocarrier = 0;
+ppp_close(ppp, nocarrier);
+/*
+ * Then you must wait your status_cb() to be called, it may takes from a few
+ * seconds to several tens of seconds depending on the current PPP state.
+ */
+
+/*
+ * Freeing a PPP connection
+ * ========================
+ */
+
+/*
+ * Free the PPP control block, can only be called if PPP session is in the
+ * dead state (i.e. disconnected). You need to call ppp_close() before.
+ */
+ppp_free(ppp);
+
+
+
+3 PPPoS input path (raw API, IRQ safe API, TCPIP API)
+=====================================================
+
+Received data on serial port should be sent to lwIP using the pppos_input()
+function or the pppos_input_tcpip() function.
+
+If NO_SYS is 1 and if PPP_INPROC_IRQ_SAFE is 0 (the default), pppos_input()
+is not IRQ safe and then *MUST* only be called inside your main loop.
+
+Whatever the NO_SYS value, if PPP_INPROC_IRQ_SAFE is 1, pppos_input() is IRQ
+safe and can be safely called from an interrupt context, using that is going
+to reduce your need of buffer if pppos_input() is called byte after byte in
+your rx serial interrupt.
+
+if NO_SYS is 0, the thread safe way outside an interrupt context is to use
+the pppos_input_tcpip() function to pass input data to the lwIP core thread
+using the TCPIP API. This is thread safe in all cases but you should avoid
+passing data byte after byte because it uses heavy locking (mailbox) and it
+allocates pbuf, better fill them !
+
+if NO_SYS is 0 and if PPP_INPROC_IRQ_SAFE is 1, you may also use pppos_input()
+from an RX thread, however pppos_input() is not thread safe by itself. You can
+do that *BUT* you should NEVER call pppos_connect(), pppos_listen() and
+ppp_free() if pppos_input() can still be running, doing this is NOT thread safe
+at all. Using PPP_INPROC_IRQ_SAFE from an RX thread is discouraged unless you
+really know what you are doing, your move ;-)
+
+
+/*
+ * Fonction to call for received data
+ *
+ * ppp, PPP control block
+ * buffer, input buffer
+ * buffer_len, buffer length in bytes
+ */
+void pppos_input(ppp, buffer, buffer_len);
+
+or
+
+void pppos_input_tcpip(ppp, buffer, buffer_len);
+
+
+4 Thread safe PPP API (PPPAPI)
+==============================
+
+There is a thread safe API for all corresponding ppp_* functions, you have to
+enable LWIP_PPP_API in your lwipopts.h file, then see include/lwip/pppapi.h,
+this is actually pretty obvious.
+
+
+
+5 Upgrading from lwIP <= 1.4.x to lwIP >= 1.5.x
+===============================================
+
+PPP API was fully reworked between 1.4.x and 1.5.x releases. However porting
+from previous lwIP version is pretty easy:
+
+* Previous PPP API used an integer to identify PPP sessions, we are now
+  using ppp_pcb* control block, therefore all functions changed from "int ppp"
+  to "ppp_pcb *ppp"
+
+* struct netif was moved outside the PPP structure, you have to provide a netif
+  for PPP interface in pppoX_create() functions
+
+* PPP session are not started automatically after you created them anymore,
+  you have to call ppp_connect(), this way you can configure the session before
+  starting it.
+
+* Previous PPP API used CamelCase, we are now using snake_case.
+
+* Previous PPP API mixed PPPoS and PPPoE calls, this isn't the case anymore,
+  PPPoS functions are now prefixed pppos_ and PPPoE functions are now prefixed
+  pppoe_, common functions are now prefixed ppp_.
+
+* New PPPERR_ error codes added, check you have all of them in your status
+  callback function
+
+* Only the following include files should now be used in user application:
+  #include "lwip/pppapi.h"
+  #include "netif/ppp/pppos.h"
+  #include "netif/ppp/pppoe.h"
+  #include "netif/ppp/pppol2tp.h"
+
+  Functions from ppp.h can be used, but you don't need to include this header
+  file as it is already included by above header files.
+
+* PPP_INPROC_OWNTHREAD was broken by design and was removed, you have to create
+  your own serial rx thread
+
+* PPP_INPROC_MULTITHREADED option was misnamed and confusing and was renamed
+  PPP_INPROC_IRQ_SAFE, please read the "PPPoS input path" documentation above
+  because you might have been fooled by that
+
+* If you used tcpip_callback_with_block() on ppp_ functions you may wish to use
+  the PPPAPI API instead.
+
+* ppp_sighup and ppp_close functions were merged using an optional argument
+  "nocarrier" on ppp_close.
+
+* DNS servers are now only remotely asked if LWIP_DNS is set and we are now
+  unconditionally registering them, which is probably the wanted behavior in
+  almost all cases. If you need it conditional contact us and we will made it
+  conditional.
+
+* PPPoS now requires a serial output callback
+
+* PPP_MAXIDLEFLAG is now in ms instead of jiffies

doc/rawapi.txt

@@ -8,6 +8,12 @@ to use for communication with the TCP/IP code:
 * higher-level "sequential" API.
 * BSD-style socket API.
 
+The raw API (sometimes called native API) is an event-driven API designed
+to be used without an operating system that implements zero-copy send and
+receive. This API is also used by the core stack for interaction between
+the various protocols. It is the only API available when running lwIP
+without an operating system.
+
 The sequential API provides a way for ordinary, sequential, programs
 to use the lwIP stack. It is quite similar to the BSD socket API. The
 model of execution is based on the blocking open-read-write-close
@@ -22,14 +28,17 @@ on other platforms (e.g. unix / windows etc.). However, due to limitations
 in the specification of this API, there might be incompatibilities
 that require small modifications of existing programs.
 
-** Threading
+** Multithreading
 
 lwIP started targeting single-threaded environments. When adding multi-
 threading support, instead of making the core thread-safe, another
 approach was chosen: there is one main thread running the lwIP core
-(also known as the "tcpip_thread"). The raw API may only be used from
-this thread! Application threads using the sequential- or socket API
-communicate with this main thread through message passing.
+(also known as the "tcpip_thread"). When running in a multithreaded
+environment, raw API functions MUST only be called from the core thread
+since raw API functions are not protected from concurrent access (aside
+from pbuf- and memory management functions). Application threads using
+the sequential- or socket API communicate with this main thread through
+message passing.
 
       As such, the list of functions that may be called from
       other threads or an ISR is very limited! Only functions
@@ -38,6 +47,7 @@ communicate with this main thread through message passing.
       - netbuf.h
       - netdb.h
       - netifapi.h
+      - pppapi.h
       - sockets.h
       - sys.h
 
@@ -46,13 +56,18 @@ communicate with this main thread through message passing.
       since they are protected by SYS_LIGHTWEIGHT_PROT and/or
       semaphores.
 
-      Only since 1.3.0, if SYS_LIGHTWEIGHT_PROT is set to 1
-      and LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT is set to 1,
+      Netconn or Socket API functions are thread safe against the
+      core thread but they are not reentrant at the control block
+      granularity level. That is, a UDP or TCP control block must
+      not be shared among multiple threads without proper locking.
+
+      If SYS_LIGHTWEIGHT_PROT is set to 1 and
+      LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT is set to 1,
       pbuf_free() may also be called from another thread or
       an ISR (since only then, mem_free - for PBUF_RAM - may
       be called from an ISR: otherwise, the HEAP is only
       protected by semaphores).
-      
+
 
 ** The remainder of this document discusses the "raw" API. **
 
@@ -71,13 +86,28 @@ the raw TCP/IP interface are more difficult to understand. Still, this
 is the preferred way of writing applications that should be small in
 code size and memory usage.
 
-Both APIs can be used simultaneously by different application
+All APIs can be used simultaneously by different application
 programs. In fact, the sequential API is implemented as an application
 program using the raw TCP/IP interface.
 
+Do not confuse the lwIP raw API with raw Ethernet or IP sockets.
+The former is a way of interfacing the lwIP network stack (including
+TCP and UDP), the later refers to processing raw Ethernet or IP data
+instead of TCP connections or UDP packets.
+
+Raw API applications may never block since all packet processing
+(input and output) as well as timer processing (TCP mainly) is done
+in a single execution context.
+
 --- Callbacks
 
-Program execution is driven by callbacks. Each callback is an ordinary
+Program execution is driven by callbacks functions, which are then
+invoked by the lwIP core when activity related to that application
+occurs. A particular application may register to be notified via a
+callback function for events such as incoming data available, outgoing
+data sent, error notifications, poll timer expiration, connection
+closed, etc. An application can provide a callback function to perform
+processing for any or all of these events. Each callback is an ordinary
 C function that is called from within the TCP/IP code. Every callback
 function is passed the current TCP or UDP connection state as an
 argument. Also, in order to be able to keep program specific state,
@@ -196,7 +226,7 @@ callback function.
     should be allocated and the data should only be referenced by pointer. This
     also means that the memory behind dataptr must not change until the data is
     ACKed by the remote host
-  - TCP_WRITE_FLAG_MORE: indicates that more data follows. If this is given,
+  - TCP_WRITE_FLAG_MORE: indicates that more data follows. If this is omitted,
     the PSH flag is set in the last segment created by this call to tcp_write.
     If this flag is given, the PSH flag is not set.
 
@@ -302,17 +332,6 @@ function to be called is set using the tcp_err() function.
   parameter since the pcb may already have been deallocated.
 
 
---- Lower layer TCP interface
-
-TCP provides a simple interface to the lower layers of the
-system. During system initialization, the function tcp_init() has
-to be called before any other TCP function is called. When the system
-is running, the two timer functions tcp_fasttmr() and tcp_slowtmr()
-must be called with regular intervals. The tcp_fasttmr() should be
-called every TCP_FAST_INTERVAL milliseconds (defined in tcp.h) and
-tcp_slowtmr() should be called every TCP_SLOW_INTERVAL milliseconds. 
-
-
 --- UDP interface
 
 The UDP interface is similar to that of TCP, but due to the lower
@@ -363,9 +382,9 @@ level of complexity of UDP, the interface is significantly simpler.
 
 --- System initalization
 
-A truly complete and generic sequence for initializing the lwip stack
-cannot be given because it depends on the build configuration (lwipopts.h)
-and additional initializations for your runtime environment (e.g. timers).
+A truly complete and generic sequence for initializing the lwIP stack
+cannot be given because it depends on additional initializations for
+your runtime environment (e.g. timers).
 
 We can give you some idea on how to proceed when using the raw API.
 We assume a configuration using a single Ethernet netif and the
@@ -373,51 +392,13 @@ UDP and TCP transport layers, IPv4 and the DHCP client.
 
 Call these functions in the order of appearance:
 
-- stats_init()
+- lwip_init()
 
-  Clears the structure where runtime statistics are gathered.
+  Initialize the lwIP stack and all of its subsystems.
 
-- sys_init()
-  
-  Not of much use since we set the NO_SYS 1 option in lwipopts.h,
-  to be called for easy configuration changes.
-
-- mem_init()
-
-  Initializes the dynamic memory heap defined by MEM_SIZE.
-
-- memp_init()
-
-  Initializes the memory pools defined by MEMP_NUM_x.
-
-- pbuf_init()
-
-  Initializes the pbuf memory pool defined by PBUF_POOL_SIZE.
-  
-- etharp_init()
-
-  Initializes the ARP table and queue.
-  Note: you must call etharp_tmr at a ARP_TMR_INTERVAL (5 seconds) regular interval
-  after this initialization.
-
-- ip_init()
-
-  Doesn't do much, it should be called to handle future changes.
-
-- udp_init()
-
-  Clears the UDP PCB list.
-
-- tcp_init()
-
-  Clears the TCP PCB list and clears some internal TCP timers.
-  Note: you must call tcp_fasttmr() and tcp_slowtmr() at the
-  predefined regular intervals after this initialization. 
-  
-- netif_add(struct netif *netif, ip_addr_t *ipaddr,
-            ip_addr_t *netmask, ip_addr_t *gw,
-            void *state, err_t (* init)(struct netif *netif),
-            err_t (* input)(struct pbuf *p, struct netif *netif))
+- netif_add(struct netif *netif, const ip4_addr_t *ipaddr,
+            const ip4_addr_t *netmask, const ip4_addr_t *gw,
+            void *state, netif_init_fn init, netif_input_fn input)
 
   Adds your network interface to the netif_list. Allocate a struct
   netif and pass a pointer to this structure as the first argument.
@@ -425,18 +406,20 @@ Call these functions in the order of appearance:
   or fill them with sane numbers otherwise. The state pointer may be NULL.
 
   The init function pointer must point to a initialization function for
-  your ethernet netif interface. The following code illustrates it's use.
+  your Ethernet netif interface. The following code illustrates its use.
   
   err_t netif_if_init(struct netif *netif)
   {
     u8_t i;
     
-    for(i = 0; i < ETHARP_HWADDR_LEN; i++) netif->hwaddr[i] = some_eth_addr[i];
+    for (i = 0; i < ETHARP_HWADDR_LEN; i++) {
+      netif->hwaddr[i] = some_eth_addr[i];
+    }
     init_my_eth_device();
     return ERR_OK;
   }
   
-  For ethernet drivers, the input function pointer must point to the lwip
+  For Ethernet drivers, the input function pointer must point to the lwIP
   function ethernet_input() declared in "netif/etharp.h". Other drivers
   must use ip_input() declared in "lwip/ip.h".
   
@@ -444,18 +427,30 @@ Call these functions in the order of appearance:
 
   Registers the default network interface.
 
+- netif_set_link_up(struct netif *netif)
+
+  This is the hardware link state; e.g. whether cable is plugged for wired
+  Ethernet interface. This function must be called even if you don't know
+  the current state. Having link up and link down events is optional but
+  DHCP and IPv6 discover benefit well from those events.
+
 - netif_set_up(struct netif *netif)
 
-  When the netif is fully configured this function must be called.
+  This is the administrative (= software) state of the netif, when the
+  netif is fully configured this function must be called.
 
 - dhcp_start(struct netif *netif)
 
   Creates a new DHCP client for this interface on the first call.
-  Note: you must call dhcp_fine_tmr() and dhcp_coarse_tmr() at
-  the predefined regular intervals after starting the client.
   
   You can peek in the netif->dhcp struct for the actual DHCP status.
 
+- sys_check_timeouts()
+
+  When the system is running, you have to periodically call
+  sys_check_timeouts() which will handle all timers for all protocols in
+  the stack; add this to your main loop or equivalent.
+
 
 --- Optimalization hints
 

doc/savannah.txt

@@ -2,37 +2,34 @@ Daily Use Guide for using Savannah for lwIP
 
 Table of Contents:
 
-1 - Obtaining lwIP from the CVS repository
-2 - Committers/developers CVS access using SSH (to be written)
-3 - Merging from DEVEL branch to main trunk (stable branch)
+1 - Obtaining lwIP from the Git repository
+2 - Committers/developers Git access using SSH
+3 - Merging a development branch to master branch
 4 - How to release lwIP
 
 
 
-1 Obtaining lwIP from the CVS repository
+1 Obtaining lwIP from the Git repository
 ----------------------------------------
 
-To perform an anonymous CVS checkout of the main trunk (this is where
+To perform an anonymous Git clone of the master branch (this is where
 bug fixes and incremental enhancements occur), do this:
+ git clone git://git.savannah.nongnu.org/lwip.git
 
-cvs -z3 -d:pserver:anonymous@cvs.sv.gnu.org:/sources/lwip checkout lwip
- 
 Or, obtain a stable branch (updated with bug fixes only) as follows:
-cvs -z3 -d:pserver:anonymous@cvs.sv.gnu.org:/sources/lwip checkout \
-  -r STABLE-0_7 -d lwip-0.7 lwip
+ git clone --branch DEVEL-1_4_1 git://git.savannah.nongnu.org/lwip.git
 
 Or, obtain a specific (fixed) release as follows:
-cvs -z3 -d:pserver:anonymous@cvs.sv.gnu.org:/sources/lwip checkout \
-  -r STABLE-0_7_0 -d lwip-0.7.0 lwip
+ git clone --branch STABLE-1_4_1 git://git.savannah.nongnu.org/lwip.git
 
-3 Committers/developers CVS access using SSH
+
+2 Committers/developers Git access using SSH
 --------------------------------------------
 
 The Savannah server uses SSH (Secure Shell) protocol 2 authentication and encryption.
-As such, CVS commits to the server occur through a SSH tunnel for project members.
+As such, Git commits to the server occur through a SSH tunnel for project members.
 To create a SSH2 key pair in UNIX-like environments, do this:
-
-ssh-keygen -t dsa
+ ssh-keygen -t dsa
 
 Under Windows, a recommended SSH client is "PuTTY", freely available with good
 documentation and a graphic user interface. Use its key generator.
@@ -41,95 +38,83 @@ Now paste the id_dsa.pub contents into your Savannah account public key list. Wa
 a while so that Savannah can update its configuration (This can take minutes).
 
 Try to login using SSH:
-
-ssh -v your_login@cvs.sv.gnu.org
+ ssh -v your_login@git.sv.gnu.org
 
 If it tells you:
+ Linux vcs.savannah.gnu.org 2.6.32-5-xen-686 #1 SMP Wed Jun 17 17:10:03 UTC 2015 i686
 
-Authenticating with public key "your_key_name"...
-Server refused to allocate pty
+ Interactive shell login is not possible for security reasons.
+ VCS commands are allowed.
+ Last login: Tue May 15 23:10:12 2012 from 82.245.102.129
+ You tried to execute:
+ Sorry, you are not allowed to execute that command.
+ Shared connection to git.sv.gnu.org closed.
 
 then you could login; Savannah refuses to give you a shell - which is OK, as we
-are allowed to use SSH for CVS only. Now, you should be able to do this:
+are allowed to use SSH for Git only. Now, you should be able to do this:
+ git clone your_login@git.sv.gnu.org:/srv/git/lwip.git
 
-export CVS_RSH=ssh
-cvs -z3 -d:ext:your_login@cvs.sv.gnu.org:/sources/lwip co lwip
- 
-after which you can edit your local files with bug fixes or new features and
-commit them. Make sure you know what you are doing when using CVS to make
+After which you can edit your local files with bug fixes or new features and
+commit them. Make sure you know what you are doing when using Git to make
 changes on the repository. If in doubt, ask on the lwip-members mailing list.
 
 (If SSH asks about authenticity of the host, you can check the key
- fingerprint against http://savannah.nongnu.org/cvs/?group=lwip)
+fingerprint against https://savannah.nongnu.org/git/?group=lwip
 
 
-3 Merging from DEVEL branch to main trunk (stable)
---------------------------------------------------
+3 - Merging a development branch to master branch
+-------------------------------------------------
 
-Merging is a delicate process in CVS and requires the
-following disciplined steps in order to prevent conflicts
-in the future. Conflicts can be hard to solve!
+Merging is a straightforward process in Git. How to merge all changes in a
+development branch since our last merge from main:
 
-Merging from branch A to branch B requires that the A branch
-has a tag indicating the previous merger. This tag is called
-'merged_from_A_to_B'. After merging, the tag is moved in the
-A branch to remember this merger for future merge actions.
+Checkout the master branch:
+ git checkout master
 
-IMPORTANT: AFTER COMMITTING A SUCCESFUL MERGE IN THE
-REPOSITORY, THE TAG MUST BE SET ON THE SOURCE BRANCH OF THE
-MERGE ACTION (REPLACING EXISTING TAGS WITH THE SAME NAME).
+Merge the development branch to master:
+ git merge your-development-branch
 
-Merge all changes in DEVEL since our last merge to main:
+Resolve any conflict.
 
-In the working copy of the main trunk:
-cvs update -P -jmerged_from_DEVEL_to_main -jDEVEL 
+Commit the merge result.
+ git commit -a
 
-(This will apply the changes between 'merged_from_DEVEL_to_main'
-and 'DEVEL' to your work set of files)
+Push your commits:
+ git push
 
-We can now commit the merge result.
-cvs commit -R -m "Merged from DEVEL to main." 
-
-If this worked out OK, we now move the tag in the DEVEL branch
-to this merge point, so we can use this point for future merges:
-
-cvs rtag -F -r DEVEL merged_from_DEVEL_to_main lwip 
 
 4 How to release lwIP
 ---------------------
 
-First, checkout a clean copy of the branch to be released. Tag this set with
-tag name "STABLE-0_6_3". (I use release number 0.6.3 throughout this example).
+First, tag the release using Git: (I use release number 1.4.1 throughout
+this example).
+ git tag -a STABLE-1_4_1
 
-Login CVS using pserver authentication, then export a clean copy of the
-tagged tree. Export is similar to a checkout, except that the CVS metadata
-is not created locally. 
+Share the tag reference by pushing it to remote:
+ git push origin STABLE-1_4_1
 
-export CVS_RSH=ssh
-cvs -z3 -d:pserver:anonymous@cvs.sv.gnu.org:/sources/lwip checkout \
-  -r STABLE-0_6_3 -d lwip-0.6.3 lwip
+Prepare the release:
+ cp -r lwip lwip-1.4.1
+ rm -rf lwip-1.4.1/.git lwip-1.4.1/.gitattributes
 
-Archive this directory using tar, gzip'd, bzip2'd and zip'd.
-
-tar czvf lwip-0.6.3.tar.gz lwip-0.6.3
-tar cjvf lwip-0.6.3.tar.bz2 lwip-0.6.3
-zip -r lwip-0.6.3.zip lwip-0.6.3
+Archive the current directory using tar, gzip'd, bzip2'd and zip'd.
+ tar czvf lwip-1.4.1.tar.gz lwip-1.4.1
+ tar cjvf lwip-1.4.1.tar.bz2 lwip-1.4.1
+ zip -r lwip-1.4.1.zip lwip-1.4.1
 
 Now, sign the archives with a detached GPG binary signature as follows:
-
-gpg -b lwip-0.6.3.tar.gz
-gpg -b lwip-0.6.3.tar.bz2
-gpg -b lwip-0.6.3.zip
+ gpg -b lwip-1.4.1.tar.gz
+ gpg -b lwip-1.4.1.tar.bz2
+ gpg -b lwip-1.4.1.zip
 
 Upload these files using anonymous FTP:
-ncftp ftp://savannah.gnu.org/incoming/savannah/lwip
-
-ncftp>mput *0.6.3.*
+ ncftp ftp://savannah.gnu.org/incoming/savannah/lwip
+ ncftp> mput *1.4.1.*
 
 Additionally, you may post a news item on Savannah, like this:
 
-A new 0.6.3 release is now available here:
-http://savannah.nongnu.org/files/?group=lwip&highlight=0.6.3
+A new 1.4.1 release is now available here:
+http://savannah.nongnu.org/files/?group=lwip&highlight=1.4.1
 
 You will have to submit this via the user News interface, then approve
-this via the Administrator News interface.
+this via the Administrator News interface.

doc/snmp_agent.txt

@@ -91,22 +91,6 @@ one or more trap destinations using these calls:
 snmp_trap_dst_enable();
 snmp_trap_dst_ip_set();
 
-In the lwIP initialisation sequence call snmp_init() just after
-the call to udp_init().
-
-Exactly every 10 msec the SNMP uptime timestamp must be updated with
-snmp_inc_sysuptime(). You should call this from a timer interrupt
-or a timer signal handler depending on your runtime environment.
-
-An alternative way to update the SNMP uptime timestamp is to do a call like
-snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but call to
-a lower frequency). Another one is to not call snmp_inc_sysuptime() or
-snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
-This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
-snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
-when it's queried (any function which need "sysuptime" have to call
-snmp_get_sysuptime).
-
 
 3 Private MIBs
 ==============

src/Filelists.mk

@@ -0,0 +1,167 @@
+#
+# Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
+# All rights reserved. 
+# 
+# Redistribution and use in source and binary forms, with or without modification, 
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice,
+#    this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission. 
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+# OF SUCH DAMAGE.
+#
+# This file is part of the lwIP TCP/IP stack.
+# 
+# Author: Adam Dunkels <adam@sics.se>
+#
+
+# COREFILES, CORE4FILES: The minimum set of files needed for lwIP.
+COREFILES=$(LWIPDIR)/core/def.c \
+	$(LWIPDIR)/core/dns.c \
+	$(LWIPDIR)/core/inet_chksum.c \
+	$(LWIPDIR)/core/init.c \
+	$(LWIPDIR)/core/ip.c \
+	$(LWIPDIR)/core/mem.c \
+	$(LWIPDIR)/core/memp.c \
+	$(LWIPDIR)/core/netif.c \
+	$(LWIPDIR)/core/pbuf.c \
+	$(LWIPDIR)/core/raw.c \
+	$(LWIPDIR)/core/stats.c \
+	$(LWIPDIR)/core/sys.c \
+	$(LWIPDIR)/core/tcp.c \
+	$(LWIPDIR)/core/tcp_in.c \
+	$(LWIPDIR)/core/tcp_out.c \
+	$(LWIPDIR)/core/timers.c \
+	$(LWIPDIR)/core/udp.c
+
+CORE4FILES=$(LWIPDIR)/core/ipv4/autoip.c \
+	$(LWIPDIR)/core/ipv4/dhcp.c \
+	$(LWIPDIR)/core/ipv4/icmp.c \
+	$(LWIPDIR)/core/ipv4/igmp.c \
+	$(LWIPDIR)/core/ipv4/ip_frag.c \
+	$(LWIPDIR)/core/ipv4/ip4.c \
+	$(LWIPDIR)/core/ipv4/ip4_addr.c
+
+CORE6FILES=$(LWIPDIR)/core/ipv6/dhcp6.c \
+	$(LWIPDIR)/core/ipv6/ethip6.c \
+	$(LWIPDIR)/core/ipv6/icmp6.c \
+	$(LWIPDIR)/core/ipv6/ip6.c \
+	$(LWIPDIR)/core/ipv6/ip6_addr.c \
+	$(LWIPDIR)/core/ipv6/ip6_frag.c \
+	$(LWIPDIR)/core/ipv6/mld6.c \
+	$(LWIPDIR)/core/ipv6/nd6.c
+
+# APIFILES: The files which implement the sequential and socket APIs.
+APIFILES=$(LWIPDIR)/api/api_lib.c \
+	$(LWIPDIR)/api/api_msg.c \
+	$(LWIPDIR)/api/err.c \
+	$(LWIPDIR)/api/netbuf.c \
+	$(LWIPDIR)/api/netdb.c \
+	$(LWIPDIR)/api/netifapi.c \
+	$(LWIPDIR)/api/sockets.c \
+	$(LWIPDIR)/api/tcpip.c
+
+# NETIFFILES: Files implementing various generic network interface functions
+NETIFFILES=$(LWIPDIR)/netif/ethernet.c $(LWIPDIR)/netif/etharp.c \
+	$(LWIPDIR)/netif/slipif.c
+
+# SIXLOWPAN: 6LoWPAN
+SIXLOWPAN=$(LWIPDIR)/netif/lowpan6.c \
+
+# PPPFILES: PPP
+PPPFILES=$(LWIPDIR)/netif/ppp/auth.c \
+	$(LWIPDIR)/netif/ppp/ccp.c \
+	$(LWIPDIR)/netif/ppp/chap-md5.c \
+	$(LWIPDIR)/netif/ppp/chap_ms.c \
+	$(LWIPDIR)/netif/ppp/chap-new.c \
+	$(LWIPDIR)/netif/ppp/demand.c \
+	$(LWIPDIR)/netif/ppp/eap.c \
+	$(LWIPDIR)/netif/ppp/ecp.c \
+	$(LWIPDIR)/netif/ppp/eui64.c \
+	$(LWIPDIR)/netif/ppp/fsm.c \
+	$(LWIPDIR)/netif/ppp/ipcp.c \
+	$(LWIPDIR)/netif/ppp/ipv6cp.c \
+	$(LWIPDIR)/netif/ppp/lcp.c \
+	$(LWIPDIR)/netif/ppp/magic.c \
+	$(LWIPDIR)/netif/ppp/mppe.c \
+	$(LWIPDIR)/netif/ppp/multilink.c \
+	$(LWIPDIR)/netif/ppp/ppp.c \
+	$(LWIPDIR)/netif/ppp/pppapi.c \
+	$(LWIPDIR)/netif/ppp/pppcrypt.c \
+	$(LWIPDIR)/netif/ppp/pppoe.c \
+	$(LWIPDIR)/netif/ppp/pppol2tp.c \
+	$(LWIPDIR)/netif/ppp/pppos.c \
+	$(LWIPDIR)/netif/ppp/upap.c \
+	$(LWIPDIR)/netif/ppp/utils.c \
+	$(LWIPDIR)/netif/ppp/vj.c \
+	$(LWIPDIR)/netif/ppp/polarssl/arc4.c \
+	$(LWIPDIR)/netif/ppp/polarssl/des.c \
+	$(LWIPDIR)/netif/ppp/polarssl/md4.c \
+	$(LWIPDIR)/netif/ppp/polarssl/md5.c \
+	$(LWIPDIR)/netif/ppp/polarssl/sha1.c
+
+# LWIPNOAPPSFILES: All LWIP files without apps
+LWIPNOAPPSFILES=$(COREFILES) \
+	$(CORE4FILES) \
+	$(CORE6FILES) \
+	$(APIFILES) \
+	$(NETIFFILES) \
+	$(PPPFILES) \
+	$(SIXLOWPAN)
+
+# SNMPFILES: SNMPv2c agent
+SNMPFILES=$(LWIPDIR)/apps/snmp/snmp_asn1.c \
+	$(LWIPDIR)/apps/snmp/snmp_core.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_icmp.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_interfaces.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_ip.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_snmp.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_system.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_tcp.c \
+	$(LWIPDIR)/apps/snmp/snmp_mib2_udp.c \
+	$(LWIPDIR)/apps/snmp/snmp_msg.c \
+	$(LWIPDIR)/apps/snmp/snmpv3.c \
+	$(LWIPDIR)/apps/snmp/snmp_netconn.c \
+	$(LWIPDIR)/apps/snmp/snmp_pbuf_stream.c \
+	$(LWIPDIR)/apps/snmp/snmp_raw.c \
+	$(LWIPDIR)/apps/snmp/snmp_scalar.c \
+	$(LWIPDIR)/apps/snmp/snmp_table.c \
+	$(LWIPDIR)/apps/snmp/snmp_threadsync.c \
+	$(LWIPDIR)/apps/snmp/snmp_traps.c \
+	$(LWIPDIR)/apps/snmp/snmpv3_mbedtls.c \
+	$(LWIPDIR)/apps/snmp/snmpv3_dummy.c
+
+# HTTPDFILES: HTTP server
+HTTPDFILES=$(LWIPDIR)/apps/httpd/fs.c \
+	$(LWIPDIR)/apps/httpd/httpd.c
+
+# LWIPERFFILES: IPERF server
+LWIPERFFILES=$(LWIPDIR)/apps/lwiperf/lwiperf.c
+
+# SNTPFILES: SNTP client
+SNTPFILES=$(LWIPDIR)/apps/sntp/sntp.c
+
+# NETBIOSNSFILES: NetBIOS name server
+NETBIOSNSFILES=$(LWIPDIR)/apps/netbiosns/netbiosns.c
+
+# LWIPAPPFILES: All LWIP APPs
+LWIPAPPFILES=$(SNMPFILES) \
+	$(HTTPDFILES) \
+	$(LWIPERFFILES) \
+	$(SNTPFILES) \
+	$(NETBIOSNSFILES)

src/api/api_lib.c

@@ -3,12 +3,12 @@
  * Sequential API External module
  *
  */
- 
+
 /*
  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved. 
- * 
- * Redistribution and use in source and binary forms, with or without modification, 
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice,
@@ -17,21 +17,21 @@
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
+ *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
@@ -44,16 +44,55 @@
 #if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
 
 #include "lwip/api.h"
-#include "lwip/tcpip.h"
 #include "lwip/memp.h"
 
 #include "lwip/ip.h"
 #include "lwip/raw.h"
 #include "lwip/udp.h"
-#include "lwip/tcp.h"
+#include "lwip/priv/api_msg.h"
+#include "lwip/priv/tcp_priv.h"
+#include "lwip/priv/tcpip_priv.h"
 
 #include <string.h>
 
+#define API_MSG_VAR_REF(name)               API_VAR_REF(name)
+#define API_MSG_VAR_DECLARE(name)           API_VAR_DECLARE(struct api_msg, name)
+#define API_MSG_VAR_ALLOC(name)             API_VAR_ALLOC(struct api_msg, MEMP_API_MSG, name, ERR_MEM)
+#define API_MSG_VAR_ALLOC_RETURN_NULL(name) API_VAR_ALLOC(struct api_msg, MEMP_API_MSG, name, NULL)
+#define API_MSG_VAR_FREE(name)              API_VAR_FREE(MEMP_API_MSG, name)
+
+static err_t netconn_close_shutdown(struct netconn *conn, u8_t how);
+
+/**
+ * Call the lower part of a netconn_* function
+ * This function is then running in the thread context
+ * of tcpip_thread and has exclusive access to lwIP core code.
+ *
+ * @param fn function to call
+ * @param apimsg a struct containing the function to call and its parameters
+ * @return ERR_OK if the function was called, another err_t if not
+ */
+static err_t
+netconn_apimsg(tcpip_callback_fn fn, struct api_msg *apimsg)
+{
+  err_t err;
+
+#ifdef LWIP_DEBUG
+  /* catch functions that don't set err */
+  apimsg->err = ERR_VAL;
+#endif /* LWIP_DEBUG */
+
+#if LWIP_NETCONN_SEM_PER_THREAD
+  apimsg->op_completed_sem = LWIP_NETCONN_THREAD_SEM_GET();
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
+
+  err = tcpip_send_msg_wait_sem(fn, apimsg, LWIP_API_MSG_SEM(apimsg));
+  if (err == ERR_OK) {
+    return apimsg->err;
+  }
+  return err;
+}
+
 /**
  * Create a new netconn (of a specific type) that has a callback function.
  * The corresponding pcb is also created.
@@ -68,26 +107,33 @@ struct netconn*
 netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto, netconn_callback callback)
 {
   struct netconn *conn;
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
+  API_MSG_VAR_ALLOC_RETURN_NULL(msg);
 
   conn = netconn_alloc(t, callback);
   if (conn != NULL) {
-    msg.function = do_newconn;
-    msg.msg.msg.n.proto = proto;
-    msg.msg.conn = conn;
-    if (TCPIP_APIMSG(&msg) != ERR_OK) {
+    err_t err;
+
+    API_MSG_VAR_REF(msg).msg.n.proto = proto;
+    API_MSG_VAR_REF(msg).conn = conn;
+    err = netconn_apimsg(lwip_netconn_do_newconn, &API_MSG_VAR_REF(msg));
+    if (err != ERR_OK) {
       LWIP_ASSERT("freeing conn without freeing pcb", conn->pcb.tcp == NULL);
-      LWIP_ASSERT("conn has no op_completed", sys_sem_valid(&conn->op_completed));
       LWIP_ASSERT("conn has no recvmbox", sys_mbox_valid(&conn->recvmbox));
 #if LWIP_TCP
       LWIP_ASSERT("conn->acceptmbox shouldn't exist", !sys_mbox_valid(&conn->acceptmbox));
 #endif /* LWIP_TCP */
+#if !LWIP_NETCONN_SEM_PER_THREAD
+      LWIP_ASSERT("conn has no op_completed", sys_sem_valid(&conn->op_completed));
       sys_sem_free(&conn->op_completed);
+#endif /* !LWIP_NETCONN_SEM_PER_THREAD */
       sys_mbox_free(&conn->recvmbox);
       memp_free(MEMP_NETCONN, conn);
+      API_MSG_VAR_FREE(msg);
       return NULL;
     }
   }
+  API_MSG_VAR_FREE(msg);
   return conn;
 }
 
@@ -102,21 +148,35 @@ netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto, netconn_cal
 err_t
 netconn_delete(struct netconn *conn)
 {
-  struct api_msg msg;
+  err_t err;
+  API_MSG_VAR_DECLARE(msg);
 
   /* No ASSERT here because possible to get a (conn == NULL) if we got an accept error */
   if (conn == NULL) {
     return ERR_OK;
   }
 
-  msg.function = do_delconn;
-  msg.msg.conn = conn;
-  tcpip_apimsg(&msg);
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+#if LWIP_SO_SNDTIMEO || LWIP_SO_LINGER
+  /* get the time we started, which is later compared to
+     sys_now() + conn->send_timeout */
+  API_MSG_VAR_REF(msg).msg.sd.time_started = sys_now();
+#else /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */
+#if LWIP_TCP
+  API_MSG_VAR_REF(msg).msg.sd.polls_left =
+    ((LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT + TCP_SLOW_INTERVAL - 1) / TCP_SLOW_INTERVAL) + 1;
+#endif /* LWIP_TCP */
+#endif /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */
+  err = netconn_apimsg(lwip_netconn_do_delconn, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
+
+  if (err != ERR_OK) {
+    return err;
+  }
 
   netconn_free(conn);
 
-  /* don't care for return value of do_delconn since it only calls void functions */
-
   return ERR_OK;
 }
 
@@ -134,21 +194,27 @@ netconn_delete(struct netconn *conn)
 err_t
 netconn_getaddr(struct netconn *conn, ip_addr_t *addr, u16_t *port, u8_t local)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
 
   LWIP_ERROR("netconn_getaddr: invalid conn", (conn != NULL), return ERR_ARG;);
   LWIP_ERROR("netconn_getaddr: invalid addr", (addr != NULL), return ERR_ARG;);
   LWIP_ERROR("netconn_getaddr: invalid port", (port != NULL), return ERR_ARG;);
 
-  msg.function = do_getaddr;
-  msg.msg.conn = conn;
-  msg.msg.msg.ad.ipaddr = ip_2_ipX(addr);
-  msg.msg.msg.ad.port = port;
-  msg.msg.msg.ad.local = local;
-  err = TCPIP_APIMSG(&msg);
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+  API_MSG_VAR_REF(msg).msg.ad.local = local;
+#if LWIP_MPU_COMPATIBLE
+  err = netconn_apimsg(lwip_netconn_do_getaddr, &API_MSG_VAR_REF(msg));
+  *addr = msg->msg.ad.ipaddr;
+  *port = msg->msg.ad.port;
+#else /* LWIP_MPU_COMPATIBLE */
+  msg.msg.ad.ipaddr = addr;
+  msg.msg.ad.port = port;
+  err = netconn_apimsg(lwip_netconn_do_getaddr, &msg);
+#endif /* LWIP_MPU_COMPATIBLE */
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
@@ -163,20 +229,25 @@ netconn_getaddr(struct netconn *conn, ip_addr_t *addr, u16_t *port, u8_t local)
  * @return ERR_OK if bound, any other err_t on failure
  */
 err_t
-netconn_bind(struct netconn *conn, ip_addr_t *addr, u16_t port)
+netconn_bind(struct netconn *conn, const ip_addr_t *addr, u16_t port)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
-
+  
   LWIP_ERROR("netconn_bind: invalid conn", (conn != NULL), return ERR_ARG;);
 
-  msg.function = do_bind;
-  msg.msg.conn = conn;
-  msg.msg.msg.bc.ipaddr = addr;
-  msg.msg.msg.bc.port = port;
-  err = TCPIP_APIMSG(&msg);
+  /* Don't propagate NULL pointer (IP_ADDR_ANY alias) to subsequent functions */
+  if (addr == NULL) {
+    addr = IP_ADDR_ANY;
+  }
+
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+  API_MSG_VAR_REF(msg).msg.bc.ipaddr = API_MSG_VAR_REF(addr);
+  API_MSG_VAR_REF(msg).msg.bc.port = port;
+  err = netconn_apimsg(lwip_netconn_do_bind, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
@@ -189,21 +260,25 @@ netconn_bind(struct netconn *conn, ip_addr_t *addr, u16_t port)
  * @return ERR_OK if connected, return value of tcp_/udp_/raw_connect otherwise
  */
 err_t
-netconn_connect(struct netconn *conn, ip_addr_t *addr, u16_t port)
+netconn_connect(struct netconn *conn, const ip_addr_t *addr, u16_t port)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
 
   LWIP_ERROR("netconn_connect: invalid conn", (conn != NULL), return ERR_ARG;);
 
-  msg.function = do_connect;
-  msg.msg.conn = conn;
-  msg.msg.msg.bc.ipaddr = addr;
-  msg.msg.msg.bc.port = port;
-  /* This is the only function which need to not block tcpip_thread */
-  err = tcpip_apimsg(&msg);
+  /* Don't propagate NULL pointer (IP_ADDR_ANY alias) to subsequent functions */
+  if (addr == NULL) {
+    addr = IP_ADDR_ANY;
+  }
+
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+  API_MSG_VAR_REF(msg).msg.bc.ipaddr = API_MSG_VAR_REF(addr);
+  API_MSG_VAR_REF(msg).msg.bc.port = port;
+  err = netconn_apimsg(lwip_netconn_do_connect, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
@@ -216,16 +291,16 @@ netconn_connect(struct netconn *conn, ip_addr_t *addr, u16_t port)
 err_t
 netconn_disconnect(struct netconn *conn)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
 
   LWIP_ERROR("netconn_disconnect: invalid conn", (conn != NULL), return ERR_ARG;);
 
-  msg.function = do_disconnect;
-  msg.msg.conn = conn;
-  err = TCPIP_APIMSG(&msg);
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+  err = netconn_apimsg(lwip_netconn_do_disconnect, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
@@ -241,7 +316,7 @@ err_t
 netconn_listen_with_backlog(struct netconn *conn, u8_t backlog)
 {
 #if LWIP_TCP
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
 
   /* This does no harm. If TCP_LISTEN_BACKLOG is off, backlog is unused. */
@@ -249,14 +324,14 @@ netconn_listen_with_backlog(struct netconn *conn, u8_t backlog)
 
   LWIP_ERROR("netconn_listen: invalid conn", (conn != NULL), return ERR_ARG;);
 
-  msg.function = do_listen;
-  msg.msg.conn = conn;
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
 #if TCP_LISTEN_BACKLOG
-  msg.msg.msg.lb.backlog = backlog;
+  API_MSG_VAR_REF(msg).msg.lb.backlog = backlog;
 #endif /* TCP_LISTEN_BACKLOG */
-  err = TCPIP_APIMSG(&msg);
+  err = netconn_apimsg(lwip_netconn_do_listen, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 #else /* LWIP_TCP */
   LWIP_UNUSED_ARG(conn);
@@ -277,16 +352,16 @@ err_t
 netconn_accept(struct netconn *conn, struct netconn **new_conn)
 {
 #if LWIP_TCP
+  void *accept_ptr;
   struct netconn *newconn;
   err_t err;
 #if TCP_LISTEN_BACKLOG
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
 #endif /* TCP_LISTEN_BACKLOG */
 
   LWIP_ERROR("netconn_accept: invalid pointer",    (new_conn != NULL),                  return ERR_ARG;);
   *new_conn = NULL;
   LWIP_ERROR("netconn_accept: invalid conn",       (conn != NULL),                      return ERR_ARG;);
-  LWIP_ERROR("netconn_accept: invalid acceptmbox", sys_mbox_valid(&conn->acceptmbox),   return ERR_ARG;);
 
   err = conn->last_err;
   if (ERR_IS_FATAL(err)) {
@@ -294,29 +369,53 @@ netconn_accept(struct netconn *conn, struct netconn **new_conn)
        waiting on acceptmbox forever! */
     return err;
   }
+  if (!sys_mbox_valid(&conn->acceptmbox)) {
+    return ERR_CLSD;
+  }
+
+#if TCP_LISTEN_BACKLOG
+  API_MSG_VAR_ALLOC(msg);
+#endif /* TCP_LISTEN_BACKLOG */
 
 #if LWIP_SO_RCVTIMEO
-  if (sys_arch_mbox_fetch(&conn->acceptmbox, (void **)&newconn, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
-    NETCONN_SET_SAFE_ERR(conn, ERR_TIMEOUT);
+  if (sys_arch_mbox_fetch(&conn->acceptmbox, &accept_ptr, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
+#if TCP_LISTEN_BACKLOG
+    API_MSG_VAR_FREE(msg);
+#endif /* TCP_LISTEN_BACKLOG */
     return ERR_TIMEOUT;
   }
 #else
-  sys_arch_mbox_fetch(&conn->acceptmbox, (void **)&newconn, 0);
+  sys_arch_mbox_fetch(&conn->acceptmbox, &accept_ptr, 0);
 #endif /* LWIP_SO_RCVTIMEO*/
+  newconn = (struct netconn *)accept_ptr;
   /* Register event with callback */
   API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
 
+  if (accept_ptr == &netconn_aborted) {
+    /* a connection has been aborted: out of pcbs or out of netconns during accept */
+    /* @todo: set netconn error, but this would be fatal and thus block further accepts */
+#if TCP_LISTEN_BACKLOG
+    API_MSG_VAR_FREE(msg);
+#endif /* TCP_LISTEN_BACKLOG */
+    return ERR_ABRT;
+  }
   if (newconn == NULL) {
     /* connection has been aborted */
-    NETCONN_SET_SAFE_ERR(conn, ERR_ABRT);
-    return ERR_ABRT;
+    /* in this special case, we set the netconn error from application thread, as
+       on a ready-to-accept listening netconn, there should not be anything running
+       in tcpip_thread */
+    NETCONN_SET_SAFE_ERR(conn, ERR_CLSD);
+#if TCP_LISTEN_BACKLOG
+    API_MSG_VAR_FREE(msg);
+#endif /* TCP_LISTEN_BACKLOG */
+    return ERR_CLSD;
   }
 #if TCP_LISTEN_BACKLOG
   /* Let the stack know that we have accepted the connection. */
-  msg.function = do_recv;
-  msg.msg.conn = conn;
-  /* don't care for the return value of do_recv */
-  TCPIP_APIMSG(&msg);
+  API_MSG_VAR_REF(msg).conn = newconn;
+  /* don't care for the return value of lwip_netconn_do_recv */
+  netconn_apimsg(lwip_netconn_do_accepted, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 #endif /* TCP_LISTEN_BACKLOG */
 
   *new_conn = newconn;
@@ -345,13 +444,24 @@ netconn_recv_data(struct netconn *conn, void **new_buf)
   u16_t len;
   err_t err;
 #if LWIP_TCP
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
 #endif /* LWIP_TCP */
 
   LWIP_ERROR("netconn_recv: invalid pointer", (new_buf != NULL), return ERR_ARG;);
   *new_buf = NULL;
   LWIP_ERROR("netconn_recv: invalid conn",    (conn != NULL),    return ERR_ARG;);
-  LWIP_ERROR("netconn_accept: invalid recvmbox", sys_mbox_valid(&conn->recvmbox), return ERR_CONN;);
+#if LWIP_TCP
+#if (LWIP_UDP || LWIP_RAW)
+  if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP)
+#endif /* (LWIP_UDP || LWIP_RAW) */
+  {
+    if (!sys_mbox_valid(&conn->recvmbox)) {
+      /* This happens when calling this function after receiving FIN */
+      return sys_mbox_valid(&conn->acceptmbox) ? ERR_CONN : ERR_CLSD;
+    }
+  }
+#endif /* LWIP_TCP */
+  LWIP_ERROR("netconn_recv: invalid recvmbox", sys_mbox_valid(&conn->recvmbox), return ERR_CONN;);
 
   err = conn->last_err;
   if (ERR_IS_FATAL(err)) {
@@ -361,10 +471,25 @@ netconn_recv_data(struct netconn *conn, void **new_buf)
        before the fatal error occurred - is that a problem? */
     return err;
   }
-
+#if LWIP_TCP
+#if (LWIP_UDP || LWIP_RAW)
+  if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP)
+#endif /* (LWIP_UDP || LWIP_RAW) */
+  {
+    API_MSG_VAR_ALLOC(msg);
+  }
+#endif /* LWIP_TCP */
+    
 #if LWIP_SO_RCVTIMEO
   if (sys_arch_mbox_fetch(&conn->recvmbox, &buf, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
-    NETCONN_SET_SAFE_ERR(conn, ERR_TIMEOUT);
+#if LWIP_TCP
+#if (LWIP_UDP || LWIP_RAW)
+    if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP)
+#endif /* (LWIP_UDP || LWIP_RAW) */
+    {
+      API_MSG_VAR_FREE(msg);
+    }
+#endif /* LWIP_TCP */
     return ERR_TIMEOUT;
   }
 #else
@@ -372,27 +497,30 @@ netconn_recv_data(struct netconn *conn, void **new_buf)
 #endif /* LWIP_SO_RCVTIMEO*/
 
 #if LWIP_TCP
-  if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP) {
-    if (!netconn_get_noautorecved(conn) || (buf == NULL)) {
-      /* Let the stack know that we have taken the data. */
-      /* TODO: Speedup: Don't block and wait for the answer here
-         (to prevent multiple thread-switches). */
-      msg.function = do_recv;
-      msg.msg.conn = conn;
-      if (buf != NULL) {
-        msg.msg.msg.r.len = ((struct pbuf *)buf)->tot_len;
-      } else {
-        msg.msg.msg.r.len = 1;
-      }
-      /* don't care for the return value of do_recv */
-      TCPIP_APIMSG(&msg);
+#if (LWIP_UDP || LWIP_RAW)
+  if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP)
+#endif /* (LWIP_UDP || LWIP_RAW) */
+  {
+    /* Let the stack know that we have taken the data. */
+    /* TODO: Speedup: Don't block and wait for the answer here
+       (to prevent multiple thread-switches). */
+    API_MSG_VAR_REF(msg).conn = conn;
+    if (buf != NULL) {
+      API_MSG_VAR_REF(msg).msg.r.len = ((struct pbuf *)buf)->tot_len;
+    } else {
+      API_MSG_VAR_REF(msg).msg.r.len = 1;
     }
 
+    /* don't care for the return value of lwip_netconn_do_recv */
+    netconn_apimsg(lwip_netconn_do_recv, &API_MSG_VAR_REF(msg));
+    API_MSG_VAR_FREE(msg);
+
     /* If we are closed, we indicate that we no longer wish to use the socket */
     if (buf == NULL) {
       API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
-      /* Avoid to lose any previous error code */
-      NETCONN_SET_SAFE_ERR(conn, ERR_CLSD);
+      /* RX side is closed, so deallocate the recvmbox */
+      netconn_close_shutdown(conn, NETCONN_SHUT_RD);
+      /* Don' store ERR_CLSD as conn->err since we are only half-closed */
       return ERR_CLSD;
     }
     len = ((struct pbuf *)buf)->tot_len;
@@ -458,16 +586,17 @@ netconn_recv(struct netconn *conn, struct netbuf **new_buf)
   LWIP_ERROR("netconn_recv: invalid pointer", (new_buf != NULL), return ERR_ARG;);
   *new_buf = NULL;
   LWIP_ERROR("netconn_recv: invalid conn",    (conn != NULL),    return ERR_ARG;);
-  LWIP_ERROR("netconn_accept: invalid recvmbox", sys_mbox_valid(&conn->recvmbox), return ERR_CONN;);
 
 #if LWIP_TCP
-  if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP) {
+#if (LWIP_UDP || LWIP_RAW)
+  if (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP)
+#endif /* (LWIP_UDP || LWIP_RAW) */
+  {
     struct pbuf *p = NULL;
     /* This is not a listening netconn, since recvmbox is set */
 
     buf = (struct netbuf *)memp_malloc(MEMP_NETBUF);
     if (buf == NULL) {
-      NETCONN_SET_SAFE_ERR(conn, ERR_MEM);
       return ERR_MEM;
     }
 
@@ -481,12 +610,15 @@ netconn_recv(struct netconn *conn, struct netbuf **new_buf)
     buf->p = p;
     buf->ptr = p;
     buf->port = 0;
-    ipX_addr_set_any(LWIP_IPV6, &buf->addr);
+    ip_addr_set_zero(&buf->addr);
     *new_buf = buf;
     /* don't set conn->last_err: it's only ERR_OK, anyway */
     return ERR_OK;
-  } else
+  }
 #endif /* LWIP_TCP */
+#if LWIP_TCP && (LWIP_UDP || LWIP_RAW)
+  else
+#endif /* LWIP_TCP && (LWIP_UDP || LWIP_RAW) */
   {
 #if (LWIP_UDP || LWIP_RAW)
     return netconn_recv_data(conn, (void **)new_buf);
@@ -494,38 +626,6 @@ netconn_recv(struct netconn *conn, struct netbuf **new_buf)
   }
 }
 
-/**
- * TCP: update the receive window: by calling this, the application
- * tells the stack that it has processed data and is able to accept
- * new data.
- * ATTENTION: use with care, this is mainly used for sockets!
- * Can only be used when calling netconn_set_noautorecved(conn, 1) before.
- *
- * @param conn the netconn for which to update the receive window
- * @param length amount of data processed (ATTENTION: this must be accurate!)
- */
-void
-netconn_recved(struct netconn *conn, u32_t length)
-{
-#if LWIP_TCP
-  if ((conn != NULL) && (NETCONNTYPE_GROUP(conn->type) == NETCONN_TCP) &&
-      (netconn_get_noautorecved(conn))) {
-    struct api_msg msg;
-    /* Let the stack know that we have taken the data. */
-    /* TODO: Speedup: Don't block and wait for the answer here
-       (to prevent multiple thread-switches). */
-    msg.function = do_recv;
-    msg.msg.conn = conn;
-    msg.msg.msg.r.len = length;
-    /* don't care for the return value of do_recv */
-    TCPIP_APIMSG(&msg);
-  }
-#else /* LWIP_TCP */
-  LWIP_UNUSED_ARG(conn);
-  LWIP_UNUSED_ARG(length);
-#endif /* LWIP_TCP */
-}
-
 /**
  * Send data (in form of a netbuf) to a specific remote IP address and port.
  * Only to be used for UDP and RAW netconns (not TCP).
@@ -537,10 +637,10 @@ netconn_recved(struct netconn *conn, u32_t length)
  * @return ERR_OK if data was sent, any other err_t on error
  */
 err_t
-netconn_sendto(struct netconn *conn, struct netbuf *buf, ip_addr_t *addr, u16_t port)
+netconn_sendto(struct netconn *conn, struct netbuf *buf, const ip_addr_t *addr, u16_t port)
 {
   if (buf != NULL) {
-    ipX_addr_set_ipaddr(PCB_ISIPV6(conn->pcb.ip), &buf->addr, addr);
+    ip_addr_set(&buf->addr, addr);
     buf->port = port;
     return netconn_send(conn, buf);
   }
@@ -557,18 +657,18 @@ netconn_sendto(struct netconn *conn, struct netbuf *buf, ip_addr_t *addr, u16_t
 err_t
 netconn_send(struct netconn *conn, struct netbuf *buf)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
 
   LWIP_ERROR("netconn_send: invalid conn",  (conn != NULL), return ERR_ARG;);
 
   LWIP_DEBUGF(API_LIB_DEBUG, ("netconn_send: sending %"U16_F" bytes\n", buf->p->tot_len));
-  msg.function = do_send;
-  msg.msg.conn = conn;
-  msg.msg.msg.b = buf;
-  err = TCPIP_APIMSG(&msg);
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+  API_MSG_VAR_REF(msg).msg.b = buf;
+  err = netconn_apimsg(lwip_netconn_do_send, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
@@ -581,39 +681,70 @@ netconn_send(struct netconn *conn, struct netbuf *buf)
  * @param apiflags combination of following flags :
  * - NETCONN_COPY: data will be copied into memory belonging to the stack
  * - NETCONN_MORE: for TCP connection, PSH flag will be set on last segment sent
- * - NETCONN_DONTBLOCK: only write the data if all dat can be written at once
+ * - NETCONN_DONTBLOCK: only write the data if all data can be written at once
+ * @param bytes_written pointer to a location that receives the number of written bytes
  * @return ERR_OK if data was sent, any other err_t on error
  */
 err_t
-netconn_write(struct netconn *conn, const void *dataptr, size_t size, u8_t apiflags)
+netconn_write_partly(struct netconn *conn, const void *dataptr, size_t size,
+                     u8_t apiflags, size_t *bytes_written)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
+  u8_t dontblock;
 
   LWIP_ERROR("netconn_write: invalid conn",  (conn != NULL), return ERR_ARG;);
   LWIP_ERROR("netconn_write: invalid conn->type",  (NETCONNTYPE_GROUP(conn->type)== NETCONN_TCP), return ERR_VAL;);
   if (size == 0) {
     return ERR_OK;
   }
+  dontblock = netconn_is_nonblocking(conn) || (apiflags & NETCONN_DONTBLOCK);
+  if (dontblock && !bytes_written) {
+    /* This implies netconn_write() cannot be used for non-blocking send, since
+       it has no way to return the number of bytes written. */
+    return ERR_VAL;
+  }
+
+  API_MSG_VAR_ALLOC(msg);
+  /* non-blocking write sends as much  */
+  API_MSG_VAR_REF(msg).conn = conn;
+  API_MSG_VAR_REF(msg).msg.w.dataptr = dataptr;
+  API_MSG_VAR_REF(msg).msg.w.apiflags = apiflags;
+  API_MSG_VAR_REF(msg).msg.w.len = size;
+#if LWIP_SO_SNDTIMEO
+  if (conn->send_timeout != 0) {
+    /* get the time we started, which is later compared to
+        sys_now() + conn->send_timeout */
+    API_MSG_VAR_REF(msg).msg.w.time_started = sys_now();
+  } else {
+    API_MSG_VAR_REF(msg).msg.w.time_started = 0;
+  }
+#endif /* LWIP_SO_SNDTIMEO */
 
-  /* @todo: for non-blocking write, check if 'size' would ever fit into
-            snd_queue or snd_buf */
-  msg.function = do_write;
-  msg.msg.conn = conn;
-  msg.msg.msg.w.dataptr = dataptr;
-  msg.msg.msg.w.apiflags = apiflags;
-  msg.msg.msg.w.len = size;
   /* For locking the core: this _can_ be delayed on low memory/low send buffer,
      but if it is, this is done inside api_msg.c:do_write(), so we can use the
      non-blocking version here. */
-  err = TCPIP_APIMSG(&msg);
+  err = netconn_apimsg(lwip_netconn_do_write, &API_MSG_VAR_REF(msg));
+  if ((err == ERR_OK) && (bytes_written != NULL)) {
+    if (dontblock
+#if LWIP_SO_SNDTIMEO
+        || (conn->send_timeout != 0)
+#endif /* LWIP_SO_SNDTIMEO */
+       ) {
+      /* nonblocking write: maybe the data has been sent partly */
+      *bytes_written = API_MSG_VAR_REF(msg).msg.w.len;
+    } else {
+      /* blocking call succeeded: all data has been sent if it */
+      *bytes_written = size;
+    }
+  }
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
 /**
- * Close ot shutdown a TCP netconn (doesn't delete it).
+ * Close or shutdown a TCP netconn (doesn't delete it).
  *
  * @param conn the TCP netconn to close or shutdown
  * @param how fully close or only shutdown one side?
@@ -622,20 +753,29 @@ netconn_write(struct netconn *conn, const void *dataptr, size_t size, u8_t apifl
 static err_t
 netconn_close_shutdown(struct netconn *conn, u8_t how)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
+  LWIP_UNUSED_ARG(how);
 
   LWIP_ERROR("netconn_close: invalid conn",  (conn != NULL), return ERR_ARG;);
 
-  msg.function = do_close;
-  msg.msg.conn = conn;
+  API_MSG_VAR_ALLOC(msg);
+  API_MSG_VAR_REF(msg).conn = conn;
+#if LWIP_TCP
   /* shutting down both ends is the same as closing */
-  msg.msg.msg.sd.shut = how;
-  /* because of the LWIP_TCPIP_CORE_LOCKING implementation of do_close,
-     don't use TCPIP_APIMSG here */
-  err = tcpip_apimsg(&msg);
+  API_MSG_VAR_REF(msg).msg.sd.shut = how;
+#if LWIP_SO_SNDTIMEO || LWIP_SO_LINGER
+  /* get the time we started, which is later compared to
+     sys_now() + conn->send_timeout */
+  API_MSG_VAR_REF(msg).msg.sd.time_started = sys_now();
+#else /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */
+  API_MSG_VAR_REF(msg).msg.sd.polls_left =
+    ((LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT + TCP_SLOW_INTERVAL - 1) / TCP_SLOW_INTERVAL) + 1;
+#endif /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */
+#endif /* LWIP_TCP */
+  err = netconn_apimsg(lwip_netconn_do_close, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 
@@ -677,23 +817,32 @@ netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx)
  */
 err_t
 netconn_join_leave_group(struct netconn *conn,
-                         ip_addr_t *multiaddr,
-                         ip_addr_t *netif_addr,
+                         const ip_addr_t *multiaddr,
+                         const ip_addr_t *netif_addr,
                          enum netconn_igmp join_or_leave)
 {
-  struct api_msg msg;
+  API_MSG_VAR_DECLARE(msg);
   err_t err;
 
   LWIP_ERROR("netconn_join_leave_group: invalid conn",  (conn != NULL), return ERR_ARG;);
 
-  msg.function = do_join_leave_group;
-  msg.msg.conn = conn;
-  msg.msg.msg.jl.multiaddr = ip_2_ipX(multiaddr);
-  msg.msg.msg.jl.netif_addr = ip_2_ipX(netif_addr);
-  msg.msg.msg.jl.join_or_leave = join_or_leave;
-  err = TCPIP_APIMSG(&msg);
+  API_MSG_VAR_ALLOC(msg);
+
+  /* Don't propagate NULL pointer (IP_ADDR_ANY alias) to subsequent functions */
+  if (multiaddr == NULL) {
+    multiaddr = IP_ADDR_ANY;
+  }
+  if (netif_addr == NULL) {
+    netif_addr = IP_ADDR_ANY;
+  }
+
+  API_MSG_VAR_REF(msg).conn = conn;
+  API_MSG_VAR_REF(msg).msg.jl.multiaddr = API_MSG_VAR_REF(multiaddr);
+  API_MSG_VAR_REF(msg).msg.jl.netif_addr = API_MSG_VAR_REF(netif_addr);
+  API_MSG_VAR_REF(msg).msg.jl.join_or_leave = join_or_leave;
+  err = netconn_apimsg(lwip_netconn_do_join_leave_group, &API_MSG_VAR_REF(msg));
+  API_MSG_VAR_FREE(msg);
 
-  NETCONN_SET_SAFE_ERR(conn, err);
   return err;
 }
 #endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
@@ -709,32 +858,95 @@ netconn_join_leave_group(struct netconn *conn,
  *         ERR_ARG: dns client not initialized or invalid hostname
  *         ERR_VAL: dns server response was invalid
  */
+#if LWIP_IPV4 && LWIP_IPV6
+err_t
+netconn_gethostbyname_addrtype(const char *name, ip_addr_t *addr, u8_t dns_addrtype)
+#else
 err_t
 netconn_gethostbyname(const char *name, ip_addr_t *addr)
+#endif
 {
-  struct dns_api_msg msg;
-  err_t err;
+  API_VAR_DECLARE(struct dns_api_msg, msg);
+#if !LWIP_MPU_COMPATIBLE
   sys_sem_t sem;
+#endif /* LWIP_MPU_COMPATIBLE */
+  err_t err;
 
   LWIP_ERROR("netconn_gethostbyname: invalid name", (name != NULL), return ERR_ARG;);
   LWIP_ERROR("netconn_gethostbyname: invalid addr", (addr != NULL), return ERR_ARG;);
-
-  err = sys_sem_new(&sem, 0);
-  if (err != ERR_OK) {
-    return err;
+#if LWIP_MPU_COMPATIBLE
+  if (strlen(name) >= DNS_MAX_NAME_LENGTH) {
+    return ERR_ARG;
   }
+#endif
 
-  msg.name = name;
-  msg.addr = addr;
+  API_VAR_ALLOC(struct dns_api_msg, MEMP_DNS_API_MSG, msg, ERR_MEM);
+#if LWIP_MPU_COMPATIBLE
+  strncpy(API_VAR_REF(msg).name, name, DNS_MAX_NAME_LENGTH-1);
+  API_VAR_REF(msg).name[DNS_MAX_NAME_LENGTH-1] = 0;
+#else /* LWIP_MPU_COMPATIBLE */
   msg.err = &err;
   msg.sem = &sem;
+  API_VAR_REF(msg).addr = API_VAR_REF(addr);
+  API_VAR_REF(msg).name = name;
+#endif /* LWIP_MPU_COMPATIBLE */
+#if LWIP_IPV4 && LWIP_IPV6
+  API_VAR_REF(msg).dns_addrtype = dns_addrtype;
+#endif /* LWIP_IPV4 && LWIP_IPV6 */
+#if LWIP_NETCONN_SEM_PER_THREAD
+  API_VAR_REF(msg).sem = LWIP_NETCONN_THREAD_SEM_GET();
+#else /* LWIP_NETCONN_SEM_PER_THREAD*/
+  err = sys_sem_new(API_EXPR_REF(API_VAR_REF(msg).sem), 0);
+  if (err != ERR_OK) {
+    API_VAR_FREE(MEMP_DNS_API_MSG, msg);
+    return err;
+  }
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
 
-  tcpip_callback(do_gethostbyname, &msg);
-  sys_sem_wait(&sem);
-  sys_sem_free(&sem);
+  err = tcpip_callback(lwip_netconn_do_gethostbyname, &API_VAR_REF(msg));
+  if (err != ERR_OK) {
+#if !LWIP_NETCONN_SEM_PER_THREAD
+    sys_sem_free(API_EXPR_REF(API_VAR_REF(msg).sem));
+#endif /* !LWIP_NETCONN_SEM_PER_THREAD */
+    API_VAR_FREE(MEMP_DNS_API_MSG, msg);
+    return err;
+  }
+  sys_sem_wait(API_EXPR_REF_SEM(API_VAR_REF(msg).sem));
+#if !LWIP_NETCONN_SEM_PER_THREAD
+  sys_sem_free(API_EXPR_REF(API_VAR_REF(msg).sem));
+#endif /* !LWIP_NETCONN_SEM_PER_THREAD */
 
+#if LWIP_MPU_COMPATIBLE
+  *addr = msg->addr;
+  err = msg->err;
+#endif /* LWIP_MPU_COMPATIBLE */
+
+  API_VAR_FREE(MEMP_DNS_API_MSG, msg);
   return err;
 }
 #endif /* LWIP_DNS*/
 
+#if LWIP_NETCONN_SEM_PER_THREAD
+void
+netconn_thread_init(void)
+{
+  sys_sem_t *sem = LWIP_NETCONN_THREAD_SEM_GET();
+  if ((sem == NULL) || !sys_sem_valid(sem)) {
+    /* call alloc only once */
+    LWIP_NETCONN_THREAD_SEM_ALLOC();
+    LWIP_ASSERT("LWIP_NETCONN_THREAD_SEM_ALLOC() failed", sys_sem_valid(LWIP_NETCONN_THREAD_SEM_GET()));
+  }
+}
+
+void
+netconn_thread_cleanup(void)
+{
+  sys_sem_t *sem = LWIP_NETCONN_THREAD_SEM_GET();
+  if ((sem != NULL) && sys_sem_valid(sem)) {
+    /* call free only once */
+    LWIP_NETCONN_THREAD_SEM_FREE();
+  }
+}
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
+
 #endif /* LWIP_NETCONN */

src/api/err.c

@@ -6,9 +6,9 @@
 
 /*
  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved. 
- * 
- * Redistribution and use in source and binary forms, with or without modification, 
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice,
@@ -17,21 +17,21 @@
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
+ *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
@@ -50,13 +50,14 @@ static const char *err_strerr[] = {
            "Illegal value.",         /* ERR_VAL        -6  */
            "Operation would block.", /* ERR_WOULDBLOCK -7  */
            "Address in use.",        /* ERR_USE        -8  */
-           "Already connected.",     /* ERR_ISCONN     -9  */
-           "Connection aborted.",    /* ERR_ABRT       -10 */
-           "Connection reset.",      /* ERR_RST        -11 */
-           "Connection closed.",     /* ERR_CLSD       -12 */
-           "Not connected.",         /* ERR_CONN       -13 */
-           "Illegal argument.",      /* ERR_ARG        -14 */
-           "Low-level netif error.", /* ERR_IF         -15 */
+           "Already connecting.",    /* ERR_ALREADY    -9  */
+           "Already connected.",     /* ERR_ISCONN     -10 */
+           "Not connected.",         /* ERR_CONN       -11 */
+           "Low-level netif error.", /* ERR_IF         -12 */
+           "Connection aborted.",    /* ERR_ABRT       -13 */
+           "Connection reset.",      /* ERR_RST        -14 */
+           "Connection closed.",     /* ERR_CLSD       -15 */
+           "Illegal argument."       /* ERR_ARG        -16 */
 };
 
 /**
@@ -69,7 +70,6 @@ const char *
 lwip_strerr(err_t err)
 {
   return err_strerr[-err];
-
 }
 
 #endif /* LWIP_DEBUG */

src/api/netbuf.c

@@ -3,12 +3,12 @@
  * Network buffer management
  *
  */
- 
+
 /*
  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved. 
- * 
- * Redistribution and use in source and binary forms, with or without modification, 
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice,
@@ -17,21 +17,21 @@
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
+ *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
@@ -61,7 +61,7 @@ netbuf *netbuf_new(void)
   if (buf != NULL) {
     buf->p = NULL;
     buf->ptr = NULL;
-    ipX_addr_set_any(LWIP_IPV6, &buf->addr);
+    ip_addr_set_zero(&buf->addr);
     buf->port = 0;
 #if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY
 #if LWIP_CHECKSUM_ON_COPY
@@ -69,7 +69,7 @@ netbuf *netbuf_new(void)
 #endif /* LWIP_CHECKSUM_ON_COPY */
     buf->toport_chksum = 0;
 #if LWIP_NETBUF_RECVINFO
-    ipX_addr_set_any(LWIP_IPV6, &buf->toaddr);
+    ip_addr_set_zero(&buf->toaddr);
 #endif /* LWIP_NETBUF_RECVINFO */
 #endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */
     return buf;
@@ -158,7 +158,7 @@ netbuf_ref(struct netbuf *buf, const void *dataptr, u16_t size)
     buf->ptr = NULL;
     return ERR_MEM;
   }
-  buf->p->payload = (void*)dataptr;
+  ((struct pbuf_rom*)buf->p)->payload = dataptr;
   buf->p->len = buf->p->tot_len = size;
   buf->ptr = buf->p;
   return ERR_OK;
@@ -186,7 +186,7 @@ netbuf_chain(struct netbuf *head, struct netbuf *tail)
  * @param buf netbuf to get the data from
  * @param dataptr pointer to a void pointer where to store the data pointer
  * @param len pointer to an u16_t where the length of the data is stored
- * @return ERR_OK if the information was retreived,
+ * @return ERR_OK if the information was retrieved,
  *         ERR_BUF on error.
  */
 err_t

src/api/netdb.c

@@ -5,7 +5,7 @@
  */
 
 /*
- * Redistribution and use in source and binary forms, with or without modification, 
+ * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice,
@@ -14,21 +14,21 @@
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
+ *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  * Author: Simon Goldschmidt
  *
  */
@@ -49,7 +49,7 @@
 
 /** helper struct for gethostbyname_r to access the char* buffer */
 struct gethostbyname_r_helper {
-  ip_addr_t *addrs;
+  ip_addr_t *addr_list[2];
   ip_addr_t addr;
   char *aliases;
 };
@@ -92,6 +92,7 @@ lwip_gethostbyname(const char *name)
   HOSTENT_STORAGE char *s_aliases;
   HOSTENT_STORAGE ip_addr_t s_hostent_addr;
   HOSTENT_STORAGE ip_addr_t *s_phostent_addr[2];
+  HOSTENT_STORAGE char s_hostname[DNS_MAX_NAME_LENGTH + 1];
 
   /* query host IP address */
   err = netconn_gethostbyname(name, &addr);
@@ -105,7 +106,10 @@ lwip_gethostbyname(const char *name)
   s_hostent_addr = addr;
   s_phostent_addr[0] = &s_hostent_addr;
   s_phostent_addr[1] = NULL;
-  s_hostent.h_name = (char*)name;
+  strncpy(s_hostname, name, DNS_MAX_NAME_LENGTH);
+  s_hostname[DNS_MAX_NAME_LENGTH] = 0;
+  s_hostent.h_name = s_hostname;
+  s_aliases = NULL;
   s_hostent.h_aliases = &s_aliases;
   s_hostent.h_addrtype = AF_INET;
   s_hostent.h_length = sizeof(ip_addr_t);
@@ -114,22 +118,16 @@ lwip_gethostbyname(const char *name)
 #if DNS_DEBUG
   /* dump hostent */
   LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_name           == %s\n", s_hostent.h_name));
-  LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_aliases        == %p\n", s_hostent.h_aliases));
-  if (s_hostent.h_aliases != NULL) {
-    u8_t idx;
-    for ( idx=0; s_hostent.h_aliases[idx]; idx++) {
-      LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_aliases[%i]->   == %p\n", idx, s_hostent.h_aliases[idx]));
-      LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_aliases[%i]->   == %s\n", idx, s_hostent.h_aliases[idx]));
-    }
-  }
+  LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_aliases        == %p\n", (void*)s_hostent.h_aliases));
+  /* h_aliases are always empty */
   LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addrtype       == %d\n", s_hostent.h_addrtype));
   LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_length         == %d\n", s_hostent.h_length));
-  LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addr_list      == %p\n", s_hostent.h_addr_list));
+  LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addr_list      == %p\n", (void*)s_hostent.h_addr_list));
   if (s_hostent.h_addr_list != NULL) {
     u8_t idx;
-    for ( idx=0; s_hostent.h_addr_list[idx]; idx++) {
+    for (idx=0; s_hostent.h_addr_list[idx]; idx++) {
       LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addr_list[%i]   == %p\n", idx, s_hostent.h_addr_list[idx]));
-      LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addr_list[%i]-> == %s\n", idx, ip_ntoa((ip_addr_t*)s_hostent.h_addr_list[idx])));
+      LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addr_list[%i]-> == %s\n", idx, ipaddr_ntoa((ip_addr_t*)s_hostent.h_addr_list[idx])));
     }
   }
 #endif /* DNS_DEBUG */
@@ -180,7 +178,7 @@ lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
   }
   /* first thing to do: set *result to nothing */
   *result = NULL;
-  if ((name == NULL) || (ret == NULL) || (buf == 0)) {
+  if ((name == NULL) || (ret == NULL) || (buf == NULL)) {
     /* not all arguments given */
     *h_errnop = EINVAL;
     return -1;
@@ -197,10 +195,10 @@ lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
   hostname = ((char*)h) + sizeof(struct gethostbyname_r_helper);
 
   /* query host IP address */
-  err = netconn_gethostbyname(name, &(h->addr));
+  err = netconn_gethostbyname(name, &h->addr);
   if (err != ERR_OK) {
     LWIP_DEBUGF(DNS_DEBUG, ("lwip_gethostbyname(%s) failed, err=%d\n", name, err));
-    *h_errnop = ENSRNOTFOUND;
+    *h_errnop = HOST_NOT_FOUND;
     return -1;
   }
 
@@ -209,13 +207,14 @@ lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
   hostname[namelen] = 0;
 
   /* fill hostent */
-  h->addrs = &(h->addr);
+  h->addr_list[0] = &h->addr;
+  h->addr_list[1] = NULL;
   h->aliases = NULL;
-  ret->h_name = (char*)hostname;
-  ret->h_aliases = &(h->aliases);
+  ret->h_name = hostname;
+  ret->h_aliases = &h->aliases;
   ret->h_addrtype = AF_INET;
   ret->h_length = sizeof(ip_addr_t);
-  ret->h_addr_list = (char**)&(h->addrs);
+  ret->h_addr_list = (char**)&h->addr_list;
 
   /* set result != NULL */
   *result = ret;
@@ -257,10 +256,12 @@ lwip_freeaddrinfo(struct addrinfo *ai)
  *
  * @param nodename descriptive name or address string of the host
  *                 (may be NULL -> local address)
- * @param servname port number as string of NULL 
+ * @param servname port number as string of NULL
  * @param hints structure containing input values that set socktype and protocol
  * @param res pointer to a pointer where to store the result (set to NULL on failure)
  * @return 0 on success, non-zero on failure
+ *
+ * @todo: implement AI_V4MAPPED, AI_ADDRCONFIG
  */
 int
 lwip_getaddrinfo(const char *nodename, const char *servname,
@@ -269,10 +270,11 @@ lwip_getaddrinfo(const char *nodename, const char *servname,
   err_t err;
   ip_addr_t addr;
   struct addrinfo *ai;
-  struct sockaddr_in *sa = NULL;
+  struct sockaddr_storage *sa = NULL;
   int port_nr = 0;
   size_t total_size;
   size_t namelen = 0;
+  int ai_family;
 
   if (res == NULL) {
     return EAI_FAIL;
@@ -282,9 +284,25 @@ lwip_getaddrinfo(const char *nodename, const char *servname,
     return EAI_NONAME;
   }
 
+  if (hints != NULL) {
+    ai_family = hints->ai_family;
+    if ((ai_family != AF_UNSPEC)
+#if LWIP_IPV4
+      && (ai_family != AF_INET)
+#endif /* LWIP_IPV4 */
+#if LWIP_IPV6
+      && (ai_family != AF_INET6)
+#endif /* LWIP_IPV6 */
+      ) {
+      return EAI_FAMILY;
+    }
+  } else {
+    ai_family = AF_UNSPEC;
+  }
+
   if (servname != NULL) {
     /* service name specified: convert to port number
-     * @todo?: currently, only ASCII integers (port numbers) are supported! */
+     * @todo?: currently, only ASCII integers (port numbers) are supported (AI_NUMERICSERV)! */
     port_nr = atoi(servname);
     if ((port_nr <= 0) || (port_nr > 0xffff)) {
       return EAI_SERVICE;
@@ -293,19 +311,49 @@ lwip_getaddrinfo(const char *nodename, const char *servname,
 
   if (nodename != NULL) {
     /* service location specified, try to resolve */
-    err = netconn_gethostbyname(nodename, &addr);
-    if (err != ERR_OK) {
-      return EAI_FAIL;
+    if ((hints != NULL) && (hints->ai_flags & AI_NUMERICHOST)) {
+      /* no DNS lookup, just parse for an address string */
+      if (!ipaddr_aton(nodename, &addr)) {
+        return EAI_NONAME;
+      }
+#if LWIP_IPV4 && LWIP_IPV6
+      if ((IP_IS_V6_VAL(addr) && ai_family == AF_INET) ||
+          (IP_IS_V4_VAL(addr) && ai_family == AF_INET6)) {
+        return EAI_NONAME;
+      }
+#endif /* LWIP_IPV4 && LWIP_IPV6 */
+    } else {
+#if LWIP_IPV4 && LWIP_IPV6
+      /* AF_UNSPEC: prefer IPv4 */
+      u8_t type = NETCONN_DNS_IPV4_IPV6;
+      if (ai_family == AF_INET) {
+        type = NETCONN_DNS_IPV4;
+      } else if (ai_family == AF_INET6) {
+        type = NETCONN_DNS_IPV6;
+      }
+#endif /* LWIP_IPV4 && LWIP_IPV6 */
+      err = netconn_gethostbyname_addrtype(nodename, &addr, type);
+      if (err != ERR_OK) {
+        return EAI_FAIL;
+      }
     }
   } else {
     /* service location specified, use loopback address */
-    ip_addr_set_loopback(&addr);
+    if ((hints != NULL) && (hints->ai_flags & AI_PASSIVE)) {
+      ip_addr_set_any(ai_family == AF_INET6, &addr);
+    } else {
+      ip_addr_set_loopback(ai_family == AF_INET6, &addr);
+    }
   }
 
-  total_size = sizeof(struct addrinfo) + sizeof(struct sockaddr_in);
+  total_size = sizeof(struct addrinfo) + sizeof(struct sockaddr_storage);
   if (nodename != NULL) {
     namelen = strlen(nodename);
-    LWIP_ASSERT("namelen is too long", (namelen + 1) <= (mem_size_t)-1);
+    if (namelen > DNS_MAX_NAME_LENGTH) {
+      /* invalid name length */
+      return EAI_FAIL;
+    }
+    LWIP_ASSERT("namelen is too long", total_size + namelen + 1 > total_size);
     total_size += namelen + 1;
   }
   /* If this fails, please report to lwip-devel! :-) */
@@ -313,18 +361,33 @@ lwip_getaddrinfo(const char *nodename, const char *servname,
     total_size <= NETDB_ELEM_SIZE);
   ai = (struct addrinfo *)memp_malloc(MEMP_NETDB);
   if (ai == NULL) {
-    goto memerr;
+    return EAI_MEMORY;
   }
   memset(ai, 0, total_size);
-  sa = (struct sockaddr_in*)((u8_t*)ai + sizeof(struct addrinfo));
-  /* set up sockaddr */
-  inet_addr_from_ipaddr(&sa->sin_addr, &addr);
-  sa->sin_family = AF_INET;
-  sa->sin_len = sizeof(struct sockaddr_in);
-  sa->sin_port = htons((u16_t)port_nr);
+  sa = (struct sockaddr_storage *)(void*)((u8_t*)ai + sizeof(struct addrinfo));
+  if (IP_IS_V6_VAL(addr)) {
+#if LWIP_IPV6
+    struct sockaddr_in6 *sa6 = (struct sockaddr_in6*)sa;
+    /* set up sockaddr */
+    inet6_addr_from_ip6addr(&sa6->sin6_addr, ip_2_ip6(&addr));
+    sa6->sin6_family = AF_INET6;
+    sa6->sin6_len = sizeof(struct sockaddr_in6);
+    sa6->sin6_port = htons((u16_t)port_nr);
+    ai->ai_family = AF_INET6;
+#endif /* LWIP_IPV6 */
+  } else {
+#if LWIP_IPV4
+    struct sockaddr_in *sa4 = (struct sockaddr_in*)sa;
+    /* set up sockaddr */
+    inet_addr_from_ipaddr(&sa4->sin_addr, ip_2_ip4(&addr));
+    sa4->sin_family = AF_INET;
+    sa4->sin_len = sizeof(struct sockaddr_in);
+    sa4->sin_port = htons((u16_t)port_nr);
+    ai->ai_family = AF_INET;
+#endif /* LWIP_IPV4 */
+  }
 
   /* set up addrinfo */
-  ai->ai_family = AF_INET;
   if (hints != NULL) {
     /* copy socktype & protocol from hints if specified */
     ai->ai_socktype = hints->ai_socktype;
@@ -332,21 +395,16 @@ lwip_getaddrinfo(const char *nodename, const char *servname,
   }
   if (nodename != NULL) {
     /* copy nodename to canonname if specified */
-    ai->ai_canonname = ((char*)ai + sizeof(struct addrinfo) + sizeof(struct sockaddr_in));
+    ai->ai_canonname = ((char*)ai + sizeof(struct addrinfo) + sizeof(struct sockaddr_storage));
     MEMCPY(ai->ai_canonname, nodename, namelen);
     ai->ai_canonname[namelen] = 0;
   }
-  ai->ai_addrlen = sizeof(struct sockaddr_in);
+  ai->ai_addrlen = sizeof(struct sockaddr_storage);
   ai->ai_addr = (struct sockaddr*)sa;
 
   *res = ai;
 
   return 0;
-memerr:
-  if (ai != NULL) {
-    memp_free(MEMP_NETDB, ai);
-  }
-  return EAI_MEMORY;
 }
 
 #endif /* LWIP_DNS && LWIP_SOCKET */

src/api/netifapi.c

@@ -5,7 +5,7 @@
  */
 
 /*
- * Redistribution and use in source and binary forms, with or without modification, 
+ * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice,
@@ -14,21 +14,21 @@
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
+ *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  */
 
 #include "lwip/opt.h"
@@ -36,56 +36,69 @@
 #if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
 
 #include "lwip/netifapi.h"
-#include "lwip/tcpip.h"
+#include "lwip/memp.h"
+#include "lwip/priv/tcpip_priv.h"
+
+#define NETIFAPI_VAR_REF(name)      API_VAR_REF(name)
+#define NETIFAPI_VAR_DECLARE(name)  API_VAR_DECLARE(struct netifapi_msg, name)
+#define NETIFAPI_VAR_ALLOC(name)    API_VAR_ALLOC(struct netifapi_msg, MEMP_NETIFAPI_MSG, name, ERR_MEM)
+#define NETIFAPI_VAR_FREE(name)     API_VAR_FREE(MEMP_NETIFAPI_MSG, name)
 
 /**
  * Call netif_add() inside the tcpip_thread context.
  */
-void
-do_netifapi_netif_add(struct netifapi_msg_msg *msg)
+static err_t
+netifapi_do_netif_add(struct tcpip_api_call_data *m)
 {
+  struct netifapi_msg *msg = (struct netifapi_msg*)m;
+  
   if (!netif_add( msg->netif,
-                  msg->msg.add.ipaddr,
-                  msg->msg.add.netmask,
-                  msg->msg.add.gw,
+#if LWIP_IPV4
+                  API_EXPR_REF(msg->msg.add.ipaddr),
+                  API_EXPR_REF(msg->msg.add.netmask),
+                  API_EXPR_REF(msg->msg.add.gw),
+#endif /* LWIP_IPV4 */
                   msg->msg.add.state,
                   msg->msg.add.init,
                   msg->msg.add.input)) {
-    msg->err = ERR_IF;
+    return ERR_IF;
   } else {
-    msg->err = ERR_OK;
+    return ERR_OK;
   }
-  TCPIP_NETIFAPI_ACK(msg);
 }
 
+#if LWIP_IPV4
 /**
  * Call netif_set_addr() inside the tcpip_thread context.
  */
-void
-do_netifapi_netif_set_addr(struct netifapi_msg_msg *msg)
+static err_t
+netifapi_do_netif_set_addr(struct tcpip_api_call_data *m)
 {
+  struct netifapi_msg *msg = (struct netifapi_msg*)m;
+
   netif_set_addr( msg->netif,
-                  msg->msg.add.ipaddr,
-                  msg->msg.add.netmask,
-                  msg->msg.add.gw);
-  msg->err = ERR_OK;
-  TCPIP_NETIFAPI_ACK(msg);
+                  API_EXPR_REF(msg->msg.add.ipaddr),
+                  API_EXPR_REF(msg->msg.add.netmask),
+                  API_EXPR_REF(msg->msg.add.gw));
+  return ERR_OK;
 }
+#endif /* LWIP_IPV4 */
 
 /**
  * Call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) inside the
  * tcpip_thread context.
  */
-void
-do_netifapi_netif_common(struct netifapi_msg_msg *msg)
+static err_t
+netifapi_do_netif_common(struct tcpip_api_call_data *m)
 {
+  struct netifapi_msg *msg = (struct netifapi_msg*)m;
+
   if (msg->msg.common.errtfunc != NULL) {
-    msg->err = msg->msg.common.errtfunc(msg->netif);
+    return msg->msg.common.errtfunc(msg->netif);
   } else {
-    msg->err = ERR_OK;
     msg->msg.common.voidfunc(msg->netif);
+    return ERR_OK;
   }
-  TCPIP_NETIFAPI_ACK(msg);
 }
 
 /**
@@ -96,26 +109,42 @@ do_netifapi_netif_common(struct netifapi_msg_msg *msg)
  */
 err_t
 netifapi_netif_add(struct netif *netif,
-                   ip_addr_t *ipaddr,
-                   ip_addr_t *netmask,
-                   ip_addr_t *gw,
-                   void *state,
-                   netif_init_fn init,
-                   netif_input_fn input)
+#if LWIP_IPV4
+                   const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw,
+#endif /* LWIP_IPV4 */
+                   void *state, netif_init_fn init, netif_input_fn input)
 {
-  struct netifapi_msg msg;
-  msg.function = do_netifapi_netif_add;
-  msg.msg.netif = netif;
-  msg.msg.msg.add.ipaddr  = ipaddr;
-  msg.msg.msg.add.netmask = netmask;
-  msg.msg.msg.add.gw      = gw;
-  msg.msg.msg.add.state   = state;
-  msg.msg.msg.add.init    = init;
-  msg.msg.msg.add.input   = input;
-  TCPIP_NETIFAPI(&msg);
-  return msg.msg.err;
+  err_t err;
+  NETIFAPI_VAR_DECLARE(msg);
+  NETIFAPI_VAR_ALLOC(msg);
+
+#if LWIP_IPV4
+  if (ipaddr == NULL) {
+    ipaddr = IP4_ADDR_ANY;
+  }
+  if (netmask == NULL) {
+    netmask = IP4_ADDR_ANY;
+  }
+  if (gw == NULL) {
+    gw = IP4_ADDR_ANY;
+  }
+#endif /* LWIP_IPV4 */
+
+  NETIFAPI_VAR_REF(msg).netif = netif;
+#if LWIP_IPV4
+  NETIFAPI_VAR_REF(msg).msg.add.ipaddr  = NETIFAPI_VAR_REF(ipaddr);
+  NETIFAPI_VAR_REF(msg).msg.add.netmask = NETIFAPI_VAR_REF(netmask);
+  NETIFAPI_VAR_REF(msg).msg.add.gw      = NETIFAPI_VAR_REF(gw);
+#endif /* LWIP_IPV4 */
+  NETIFAPI_VAR_REF(msg).msg.add.state   = state;
+  NETIFAPI_VAR_REF(msg).msg.add.init    = init;
+  NETIFAPI_VAR_REF(msg).msg.add.input   = input;
+  err = tcpip_api_call(netifapi_do_netif_add, &API_VAR_REF(msg).call);
+  NETIFAPI_VAR_FREE(msg);
+  return err;
 }
 
+#if LWIP_IPV4
 /**
  * Call netif_set_addr() in a thread-safe way by running that function inside the
  * tcpip_thread context.
@@ -124,19 +153,33 @@ netifapi_netif_add(struct netif *netif,
  */
 err_t
 netifapi_netif_set_addr(struct netif *netif,
-                        ip_addr_t *ipaddr,
-                        ip_addr_t *netmask,
-                        ip_addr_t *gw)
+                        const ip4_addr_t *ipaddr,
+                        const ip4_addr_t *netmask,
+                        const ip4_addr_t *gw)
 {
-  struct netifapi_msg msg;
-  msg.function = do_netifapi_netif_set_addr;
-  msg.msg.netif = netif;
-  msg.msg.msg.add.ipaddr  = ipaddr;
-  msg.msg.msg.add.netmask = netmask;
-  msg.msg.msg.add.gw      = gw;
-  TCPIP_NETIFAPI(&msg);
-  return msg.msg.err;
+  err_t err;
+  NETIFAPI_VAR_DECLARE(msg);
+  NETIFAPI_VAR_ALLOC(msg);
+
+  if (ipaddr == NULL) {
+    ipaddr = IP4_ADDR_ANY;
+  }
+  if (netmask == NULL) {
+    netmask = IP4_ADDR_ANY;
+  }
+  if (gw == NULL) {
+    gw = IP4_ADDR_ANY;
+  }
+
+  NETIFAPI_VAR_REF(msg).netif = netif;
+  NETIFAPI_VAR_REF(msg).msg.add.ipaddr  = NETIFAPI_VAR_REF(ipaddr);
+  NETIFAPI_VAR_REF(msg).msg.add.netmask = NETIFAPI_VAR_REF(netmask);
+  NETIFAPI_VAR_REF(msg).msg.add.gw      = NETIFAPI_VAR_REF(gw);
+  err = tcpip_api_call(netifapi_do_netif_set_addr, &API_VAR_REF(msg).call);
+  NETIFAPI_VAR_FREE(msg);
+  return err;
 }
+#endif /* LWIP_IPV4 */
 
 /**
  * call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) in a thread-safe
@@ -148,13 +191,16 @@ err_t
 netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc,
                        netifapi_errt_fn errtfunc)
 {
-  struct netifapi_msg msg;
-  msg.function = do_netifapi_netif_common;
-  msg.msg.netif = netif;
-  msg.msg.msg.common.voidfunc = voidfunc;
-  msg.msg.msg.common.errtfunc = errtfunc;
-  TCPIP_NETIFAPI(&msg);
-  return msg.msg.err;
+  err_t err;
+  NETIFAPI_VAR_DECLARE(msg);
+  NETIFAPI_VAR_ALLOC(msg);
+
+  NETIFAPI_VAR_REF(msg).netif = netif;
+  NETIFAPI_VAR_REF(msg).msg.common.voidfunc = voidfunc;
+  NETIFAPI_VAR_REF(msg).msg.common.errtfunc = errtfunc;
+  err = tcpip_api_call(netifapi_do_netif_common, &API_VAR_REF(msg).call);
+  NETIFAPI_VAR_FREE(msg);
+  return err;
 }
 
 #endif /* LWIP_NETIF_API */

src/api/tcpip.c

@@ -40,14 +40,19 @@
 
 #if !NO_SYS /* don't build if not configured for use in lwipopts.h */
 
+#include "lwip/priv/tcpip_priv.h"
 #include "lwip/sys.h"
 #include "lwip/memp.h"
 #include "lwip/mem.h"
-#include "lwip/pbuf.h"
-#include "lwip/tcpip.h"
 #include "lwip/init.h"
+#include "lwip/ip.h"
+#include "lwip/pbuf.h"
 #include "netif/etharp.h"
-#include "netif/ppp_oe.h"
+
+#define TCPIP_MSG_VAR_REF(name)     API_VAR_REF(name)
+#define TCPIP_MSG_VAR_DECLARE(name) API_VAR_DECLARE(struct tcpip_msg, name)
+#define TCPIP_MSG_VAR_ALLOC(name)   API_VAR_ALLOC(struct tcpip_msg, MEMP_TCPIP_MSG_API, name, ERR_MEM)
+#define TCPIP_MSG_VAR_FREE(name)    API_VAR_FREE(MEMP_TCPIP_MSG_API, name)
 
 /* global variables */
 static tcpip_init_done_fn tcpip_init_done;
@@ -87,40 +92,31 @@ tcpip_thread(void *arg)
     /* wait for a message, timeouts are processed while waiting */
     sys_timeouts_mbox_fetch(&mbox, (void **)&msg);
     LOCK_TCPIP_CORE();
+    if (msg == NULL) {
+      LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: invalid message: NULL\n"));
+      LWIP_ASSERT("tcpip_thread: invalid message", 0);
+      continue;
+    }
     switch (msg->type) {
-#if LWIP_NETCONN
+#if !LWIP_TCPIP_CORE_LOCKING
     case TCPIP_MSG_API:
       LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg));
-      msg->msg.apimsg->function(&(msg->msg.apimsg->msg));
+      msg->msg.api_msg.function(msg->msg.api_msg.msg);
       break;
-#endif /* LWIP_NETCONN */
+    case TCPIP_MSG_API_CALL:
+      LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API CALL message %p\n", (void *)msg));
+      msg->msg.api_call.arg->err = msg->msg.api_call.function(msg->msg.api_call.arg);
+      sys_sem_signal(msg->msg.api_call.sem);
+      break;
+#endif /* !LWIP_TCPIP_CORE_LOCKING */
 
 #if !LWIP_TCPIP_CORE_LOCKING_INPUT
     case TCPIP_MSG_INPKT:
       LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: PACKET %p\n", (void *)msg));
-#if LWIP_ETHERNET
-      if (msg->msg.inp.netif->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) {
-        ethernet_input(msg->msg.inp.p, msg->msg.inp.netif);
-      } else
-#endif /* LWIP_ETHERNET */
-#if LWIP_IPV6
-      if ((*((unsigned char *)(msg->msg.inp.p->payload)) & 0xf0) == 0x60) {
-          ip6_input(msg->msg.inp.p, msg->msg.inp.netif);
-      } else
-#endif /* LWIP_IPV6 */
-      {
-        ip_input(msg->msg.inp.p, msg->msg.inp.netif);
-      }
+      msg->msg.inp.input_fn(msg->msg.inp.p, msg->msg.inp.netif);
       memp_free(MEMP_TCPIP_MSG_INPKT, msg);
       break;
-#endif /* LWIP_TCPIP_CORE_LOCKING_INPUT */
-
-#if LWIP_NETIF_API
-    case TCPIP_MSG_NETIFAPI:
-      LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: Netif API message %p\n", (void *)msg));
-      msg->msg.netifapimsg->function(&(msg->msg.netifapimsg->msg));
-      break;
-#endif /* LWIP_NETIF_API */
+#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */
 
 #if LWIP_TCPIP_TIMEOUT
     case TCPIP_MSG_TIMEOUT:
@@ -157,34 +153,25 @@ tcpip_thread(void *arg)
 /**
  * Pass a received packet to tcpip_thread for input processing
  *
- * @param p the received packet, p->payload pointing to the Ethernet header or
- *          to an IP header (if inp doesn't have NETIF_FLAG_ETHARP or
- *          NETIF_FLAG_ETHERNET flags)
+ * @param p the received packet
  * @param inp the network interface on which the packet was received
+ * @param input_fn input function to call
  */
 err_t
-tcpip_input(struct pbuf *p, struct netif *inp)
+tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn)
 {
 #if LWIP_TCPIP_CORE_LOCKING_INPUT
   err_t ret;
-  LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_input: PACKET %p/%p\n", (void *)p, (void *)inp));
+  LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_inpkt: PACKET %p/%p\n", (void *)p, (void *)inp));
   LOCK_TCPIP_CORE();
-#if LWIP_ETHERNET
-  if (inp->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) {
-    ret = ethernet_input(p, inp);
-  } else
-#endif /* LWIP_ETHERNET */
-  {
-    ret = ip_input(p, inp);
-  }
+  ret = input_fn(p, inp);
   UNLOCK_TCPIP_CORE();
   return ret;
 #else /* LWIP_TCPIP_CORE_LOCKING_INPUT */
   struct tcpip_msg *msg;
 
-  if (!sys_mbox_valid(&mbox)) {
-    return ERR_VAL;
-  }
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
+
   msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_INPKT);
   if (msg == NULL) {
     return ERR_MEM;
@@ -193,6 +180,7 @@ tcpip_input(struct pbuf *p, struct netif *inp)
   msg->type = TCPIP_MSG_INPKT;
   msg->msg.inp.p = p;
   msg->msg.inp.netif = inp;
+  msg->msg.inp.input_fn = input_fn;
   if (sys_mbox_trypost(&mbox, msg) != ERR_OK) {
     memp_free(MEMP_TCPIP_MSG_INPKT, msg);
     return ERR_MEM;
@@ -201,6 +189,26 @@ tcpip_input(struct pbuf *p, struct netif *inp)
 #endif /* LWIP_TCPIP_CORE_LOCKING_INPUT */
 }
 
+/**
+ * Pass a received packet to tcpip_thread for input processing with
+ * ethernet_input or ip_input
+ *
+ * @param p the received packet, p->payload pointing to the Ethernet header or
+ *          to an IP header (if inp doesn't have NETIF_FLAG_ETHARP or
+ *          NETIF_FLAG_ETHERNET flags)
+ * @param inp the network interface on which the packet was received
+ */
+err_t
+tcpip_input(struct pbuf *p, struct netif *inp)
+{
+#if LWIP_ETHERNET
+  if (inp->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) {
+    return tcpip_inpkt(p, inp, ethernet_input);
+  } else
+#endif /* LWIP_ETHERNET */
+  return tcpip_inpkt(p, inp, ip_input);
+}
+
 /**
  * Call a specific function in the thread context of
  * tcpip_thread for easy access synchronization.
@@ -217,26 +225,25 @@ tcpip_callback_with_block(tcpip_callback_fn function, void *ctx, u8_t block)
 {
   struct tcpip_msg *msg;
 
-  if (sys_mbox_valid(&mbox)) {
-    msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
-    if (msg == NULL) {
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
+
+  msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
+  if (msg == NULL) {
+    return ERR_MEM;
+  }
+
+  msg->type = TCPIP_MSG_CALLBACK;
+  msg->msg.cb.function = function;
+  msg->msg.cb.ctx = ctx;
+  if (block) {
+    sys_mbox_post(&mbox, msg);
+  } else {
+    if (sys_mbox_trypost(&mbox, msg) != ERR_OK) {
+      memp_free(MEMP_TCPIP_MSG_API, msg);
       return ERR_MEM;
     }
-
-    msg->type = TCPIP_MSG_CALLBACK;
-    msg->msg.cb.function = function;
-    msg->msg.cb.ctx = ctx;
-    if (block) {
-      sys_mbox_post(&mbox, msg);
-    } else {
-      if (sys_mbox_trypost(&mbox, msg) != ERR_OK) {
-        memp_free(MEMP_TCPIP_MSG_API, msg);
-        return ERR_MEM;
-      }
-    }
-    return ERR_OK;
   }
-  return ERR_VAL;
+  return ERR_OK;
 }
 
 #if LWIP_TCPIP_TIMEOUT
@@ -253,20 +260,19 @@ tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg)
 {
   struct tcpip_msg *msg;
 
-  if (sys_mbox_valid(&mbox)) {
-    msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
-    if (msg == NULL) {
-      return ERR_MEM;
-    }
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
 
-    msg->type = TCPIP_MSG_TIMEOUT;
-    msg->msg.tmo.msecs = msecs;
-    msg->msg.tmo.h = h;
-    msg->msg.tmo.arg = arg;
-    sys_mbox_post(&mbox, msg);
-    return ERR_OK;
+  msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
+  if (msg == NULL) {
+    return ERR_MEM;
   }
-  return ERR_VAL;
+
+  msg->type = TCPIP_MSG_TIMEOUT;
+  msg->msg.tmo.msecs = msecs;
+  msg->msg.tmo.h = h;
+  msg->msg.tmo.arg = arg;
+  sys_mbox_post(&mbox, msg);
+  return ERR_OK;
 }
 
 /**
@@ -282,125 +288,112 @@ tcpip_untimeout(sys_timeout_handler h, void *arg)
 {
   struct tcpip_msg *msg;
 
-  if (sys_mbox_valid(&mbox)) {
-    msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
-    if (msg == NULL) {
-      return ERR_MEM;
-    }
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
 
-    msg->type = TCPIP_MSG_UNTIMEOUT;
-    msg->msg.tmo.h = h;
-    msg->msg.tmo.arg = arg;
-    sys_mbox_post(&mbox, msg);
-    return ERR_OK;
+  msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
+  if (msg == NULL) {
+    return ERR_MEM;
   }
-  return ERR_VAL;
+
+  msg->type = TCPIP_MSG_UNTIMEOUT;
+  msg->msg.tmo.h = h;
+  msg->msg.tmo.arg = arg;
+  sys_mbox_post(&mbox, msg);
+  return ERR_OK;
 }
 #endif /* LWIP_TCPIP_TIMEOUT */
 
-#if LWIP_NETCONN
+
 /**
- * Call the lower part of a netconn_* function
- * This function is then running in the thread context
- * of tcpip_thread and has exclusive access to lwIP core code.
+ * Sends a message to TCPIP thread to call a function. Caller thread blocks on
+ * on a provided semaphore, which ist NOT automatically signalled by TCPIP thread,
+ * this has to be done by the user.
+ * It is recommended to use LWIP_TCPIP_CORE_LOCKING since this is the way
+ * with least runtime overhead.
  *
- * @param apimsg a struct containing the function to call and its parameters
+ * @param fn function to be called from TCPIP thread
+ * @param apimsg argument to API function
+ * @param sem semaphore to wait on
  * @return ERR_OK if the function was called, another err_t if not
  */
 err_t
-tcpip_apimsg(struct api_msg *apimsg)
+tcpip_send_msg_wait_sem(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem)
 {
-  struct tcpip_msg msg;
-#ifdef LWIP_DEBUG
-  /* catch functions that don't set err */
-  apimsg->msg.err = ERR_VAL;
-#endif
-  
-  if (sys_mbox_valid(&mbox)) {
-    msg.type = TCPIP_MSG_API;
-    msg.msg.apimsg = apimsg;
-    sys_mbox_post(&mbox, &msg);
-    sys_arch_sem_wait(&apimsg->msg.conn->op_completed, 0);
-    return apimsg->msg.err;
-  }
-  return ERR_VAL;
-}
-
 #if LWIP_TCPIP_CORE_LOCKING
-/**
- * Call the lower part of a netconn_* function
- * This function has exclusive access to lwIP core code by locking it
- * before the function is called.
- *
- * @param apimsg a struct containing the function to call and its parameters
- * @return ERR_OK (only for compatibility fo tcpip_apimsg())
- */
-err_t
-tcpip_apimsg_lock(struct api_msg *apimsg)
-{
-#ifdef LWIP_DEBUG
-  /* catch functions that don't set err */
-  apimsg->msg.err = ERR_VAL;
-#endif
-
+  LWIP_UNUSED_ARG(sem);
   LOCK_TCPIP_CORE();
-  apimsg->function(&(apimsg->msg));
+  fn(apimsg);
   UNLOCK_TCPIP_CORE();
-  return apimsg->msg.err;
+  return ERR_OK;
+#else /* LWIP_TCPIP_CORE_LOCKING */
+  TCPIP_MSG_VAR_DECLARE(msg);
 
-}
+  LWIP_ASSERT("semaphore not initialized", sys_sem_valid(sem));
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
+
+  TCPIP_MSG_VAR_ALLOC(msg);
+  TCPIP_MSG_VAR_REF(msg).type = TCPIP_MSG_API;
+  TCPIP_MSG_VAR_REF(msg).msg.api_msg.function = fn;
+  TCPIP_MSG_VAR_REF(msg).msg.api_msg.msg = apimsg;
+  sys_mbox_post(&mbox, &TCPIP_MSG_VAR_REF(msg));
+  sys_arch_sem_wait(sem, 0);
+  TCPIP_MSG_VAR_FREE(msg);
+  return ERR_OK;
 #endif /* LWIP_TCPIP_CORE_LOCKING */
-#endif /* LWIP_NETCONN */
+}
 
-#if LWIP_NETIF_API
-#if !LWIP_TCPIP_CORE_LOCKING
 /**
- * Much like tcpip_apimsg, but calls the lower part of a netifapi_*
- * function.
- *
- * @param netifapimsg a struct containing the function to call and its parameters
- * @return error code given back by the function that was called
+ * Synchronously calls function in TCPIP thread and waits for its completion.
+ * It is recommended to use LWIP_TCPIP_CORE_LOCKING (preferred) or
+ * LWIP_NETCONN_SEM_PER_THREAD. 
+ * If not, a semaphore is created and destroyed on every call which is usually
+ * an expensive/slow operation.
+ * @param fn Function to call
+ * @param call Call parameters
+ * @return Return value from tcpip_api_call_fn
  */
 err_t
-tcpip_netifapi(struct netifapi_msg* netifapimsg)
+tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call)
 {
-  struct tcpip_msg msg;
-  
-  if (sys_mbox_valid(&mbox)) {
-    err_t err = sys_sem_new(&netifapimsg->msg.sem, 0);
-    if (err != ERR_OK) {
-      netifapimsg->msg.err = err;
-      return err;
-    }
-    
-    msg.type = TCPIP_MSG_NETIFAPI;
-    msg.msg.netifapimsg = netifapimsg;
-    sys_mbox_post(&mbox, &msg);
-    sys_sem_wait(&netifapimsg->msg.sem);
-    sys_sem_free(&netifapimsg->msg.sem);
-    return netifapimsg->msg.err;
-  }
-  return ERR_VAL;
-}
-#else /* !LWIP_TCPIP_CORE_LOCKING */
-/**
- * Call the lower part of a netifapi_* function
- * This function has exclusive access to lwIP core code by locking it
- * before the function is called.
- *
- * @param netifapimsg a struct containing the function to call and its parameters
- * @return ERR_OK (only for compatibility fo tcpip_netifapi())
- */
-err_t
-tcpip_netifapi_lock(struct netifapi_msg* netifapimsg)
-{
-  LOCK_TCPIP_CORE();  
-  netifapimsg->function(&(netifapimsg->msg));
+#if LWIP_TCPIP_CORE_LOCKING
+  err_t err;
+  LOCK_TCPIP_CORE();
+  err = fn(call);
   UNLOCK_TCPIP_CORE();
-  return netifapimsg->msg.err;
+  return err;
+#else /* LWIP_TCPIP_CORE_LOCKING */
+  TCPIP_MSG_VAR_DECLARE(msg);
+  err_t err;
+
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
+
+#if !LWIP_NETCONN_SEM_PER_THREAD
+  err = sys_sem_new(&call->sem, 0);
+  if (err != ERR_OK) {
+    return err;
+  }
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
+    
+  TCPIP_MSG_VAR_ALLOC(msg);
+  TCPIP_MSG_VAR_REF(msg).type = TCPIP_MSG_API_CALL;
+  TCPIP_MSG_VAR_REF(msg).msg.api_call.arg = call;
+  TCPIP_MSG_VAR_REF(msg).msg.api_call.function = fn;
+#if LWIP_NETCONN_SEM_PER_THREAD
+  TCPIP_MSG_VAR_REF(msg).msg.api_call.sem = LWIP_NETCONN_THREAD_SEM_GET();
+#else /* LWIP_NETCONN_SEM_PER_THREAD */
+  TCPIP_MSG_VAR_REF(msg).msg.api_call.sem = &call->sem;
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
+  sys_mbox_post(&mbox, &TCPIP_MSG_VAR_REF(msg));
+  sys_arch_sem_wait(TCPIP_MSG_VAR_REF(msg).msg.api_call.sem, 0);
+  TCPIP_MSG_VAR_FREE(msg);
+
+#if !LWIP_NETCONN_SEM_PER_THREAD
+  sys_sem_free(&call->sem);
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
+
+  return call->err;
+#endif /* LWIP_TCPIP_CORE_LOCKING */
 }
-#endif /* !LWIP_TCPIP_CORE_LOCKING */
-#endif /* LWIP_NETIF_API */
 
 /**
  * Allocate a structure for a static callback message and initialize it.
@@ -410,13 +403,14 @@ tcpip_netifapi_lock(struct netifapi_msg* netifapimsg)
  * @param ctx parameter passed to function
  * @return a struct pointer to pass to tcpip_trycallback().
  */
-struct tcpip_callback_msg* tcpip_callbackmsg_new(tcpip_callback_fn function, void *ctx)
+struct tcpip_callback_msg*
+tcpip_callbackmsg_new(tcpip_callback_fn function, void *ctx)
 {
   struct tcpip_msg *msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
   if (msg == NULL) {
     return NULL;
   }
-  msg->type = TCPIP_MSG_CALLBACK;
+  msg->type = TCPIP_MSG_CALLBACK_STATIC;
   msg->msg.cb.function = function;
   msg->msg.cb.ctx = ctx;
   return (struct tcpip_callback_msg*)msg;
@@ -427,7 +421,8 @@ struct tcpip_callback_msg* tcpip_callbackmsg_new(tcpip_callback_fn function, voi
  *
  * @param msg the message to free
  */
-void tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg)
+void
+tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg)
 {
   memp_free(MEMP_TCPIP_MSG_API, msg);
 }
@@ -442,9 +437,7 @@ void tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg)
 err_t
 tcpip_trycallback(struct tcpip_callback_msg* msg)
 {
-  if (!sys_mbox_valid(&mbox)) {
-    return ERR_VAL;
-  }
+  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
   return sys_mbox_trypost(&mbox, msg);
 }
 
@@ -463,11 +456,11 @@ tcpip_init(tcpip_init_done_fn initfunc, void *arg)
 
   tcpip_init_done = initfunc;
   tcpip_init_done_arg = arg;
-  if(sys_mbox_new(&mbox, TCPIP_MBOX_SIZE) != ERR_OK) {
+  if (sys_mbox_new(&mbox, TCPIP_MBOX_SIZE) != ERR_OK) {
     LWIP_ASSERT("failed to create tcpip_thread mbox", 0);
   }
 #if LWIP_TCPIP_CORE_LOCKING
-  if(sys_mutex_new(&lock_tcpip_core) != ERR_OK) {
+  if (sys_mutex_new(&lock_tcpip_core) != ERR_OK) {
     LWIP_ASSERT("failed to create lock_tcpip_core", 0);
   }
 #endif /* LWIP_TCPIP_CORE_LOCKING */

src/apps/httpd/fs.c

@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#include "lwip/apps/httpd_opts.h"
+#include "lwip/def.h"
+#include "lwip/apps/fs.h"
+#include "fsdata.h"
+#include <string.h>
+
+
+#if HTTPD_USE_CUSTOM_FSDATA
+#include "fsdata_custom.c"
+#else /* HTTPD_USE_CUSTOM_FSDATA */
+#include "fsdata.c"
+#endif /* HTTPD_USE_CUSTOM_FSDATA */
+
+/*-----------------------------------------------------------------------------------*/
+
+#if LWIP_HTTPD_CUSTOM_FILES
+int fs_open_custom(struct fs_file *file, const char *name);
+void fs_close_custom(struct fs_file *file);
+#if LWIP_HTTPD_FS_ASYNC_READ
+u8_t fs_canread_custom(struct fs_file *file);
+u8_t fs_wait_read_custom(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg);
+int fs_read_async_custom(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg);
+#else /* LWIP_HTTPD_FS_ASYNC_READ */
+int fs_read_custom(struct fs_file *file, char *buffer, int count);
+#endif /* LWIP_HTTPD_FS_ASYNC_READ */
+#endif /* LWIP_HTTPD_CUSTOM_FILES */
+
+/*-----------------------------------------------------------------------------------*/
+err_t
+fs_open(struct fs_file *file, const char *name)
+{
+  const struct fsdata_file *f;
+
+  if ((file == NULL) || (name == NULL)) {
+     return ERR_ARG;
+  }
+
+#if LWIP_HTTPD_CUSTOM_FILES
+  if (fs_open_custom(file, name)) {
+    file->is_custom_file = 1;
+    return ERR_OK;
+  }
+  file->is_custom_file = 0;
+#endif /* LWIP_HTTPD_CUSTOM_FILES */
+
+  for (f = FS_ROOT; f != NULL; f = f->next) {
+    if (!strcmp(name, (const char *)f->name)) {
+      file->data = (const char *)f->data;
+      file->len = f->len;
+      file->index = f->len;
+      file->pextension = NULL;
+      file->flags = f->flags;
+#if HTTPD_PRECALCULATED_CHECKSUM
+      file->chksum_count = f->chksum_count;
+      file->chksum = f->chksum;
+#endif /* HTTPD_PRECALCULATED_CHECKSUM */
+#if LWIP_HTTPD_FILE_STATE
+      file->state = fs_state_init(file, name);
+#endif /* #if LWIP_HTTPD_FILE_STATE */
+      return ERR_OK;
+    }
+  }
+  /* file not found */
+  return ERR_VAL;
+}
+
+/*-----------------------------------------------------------------------------------*/
+void
+fs_close(struct fs_file *file)
+{
+#if LWIP_HTTPD_CUSTOM_FILES
+  if (file->is_custom_file) {
+    fs_close_custom(file);
+  }
+#endif /* LWIP_HTTPD_CUSTOM_FILES */
+#if LWIP_HTTPD_FILE_STATE
+  fs_state_free(file, file->state);
+#endif /* #if LWIP_HTTPD_FILE_STATE */
+  LWIP_UNUSED_ARG(file);
+}
+/*-----------------------------------------------------------------------------------*/
+#if LWIP_HTTPD_DYNAMIC_FILE_READ
+#if LWIP_HTTPD_FS_ASYNC_READ
+int
+fs_read_async(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg)
+#else /* LWIP_HTTPD_FS_ASYNC_READ */
+int
+fs_read(struct fs_file *file, char *buffer, int count)
+#endif /* LWIP_HTTPD_FS_ASYNC_READ */
+{
+  int read;
+  if(file->index == file->len) {
+    return FS_READ_EOF;
+  }
+#if LWIP_HTTPD_FS_ASYNC_READ
+  LWIP_UNUSED_ARG(callback_fn);
+  LWIP_UNUSED_ARG(callback_arg);
+#endif /* LWIP_HTTPD_FS_ASYNC_READ */
+#if LWIP_HTTPD_CUSTOM_FILES
+  if (file->is_custom_file) {
+#if LWIP_HTTPD_FS_ASYNC_READ
+    return fs_read_async_custom(file, buffer, count, callback_fn, callback_arg);
+#else /* LWIP_HTTPD_FS_ASYNC_READ */
+    return fs_read_custom(file, buffer, count);
+#endif /* LWIP_HTTPD_FS_ASYNC_READ */
+  }
+#endif /* LWIP_HTTPD_CUSTOM_FILES */
+
+  read = file->len - file->index;
+  if(read > count) {
+    read = count;
+  }
+
+  MEMCPY(buffer, (file->data + file->index), read);
+  file->index += read;
+
+  return(read);
+}
+#endif /* LWIP_HTTPD_DYNAMIC_FILE_READ */
+/*-----------------------------------------------------------------------------------*/
+#if LWIP_HTTPD_FS_ASYNC_READ
+int
+fs_is_file_ready(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg)
+{
+  if (file != NULL) {
+#if LWIP_HTTPD_FS_ASYNC_READ
+#if LWIP_HTTPD_CUSTOM_FILES
+    if (!fs_canread_custom(file)) {
+      if (fs_wait_read_custom(file, callback_fn, callback_arg)) {
+        return 0;
+      }
+    }
+#else /* LWIP_HTTPD_CUSTOM_FILES */
+    LWIP_UNUSED_ARG(callback_fn);
+    LWIP_UNUSED_ARG(callback_arg);
+#endif /* LWIP_HTTPD_CUSTOM_FILES */
+#endif /* LWIP_HTTPD_FS_ASYNC_READ */
+  }
+  return 1;
+}
+#endif /* LWIP_HTTPD_FS_ASYNC_READ */
+/*-----------------------------------------------------------------------------------*/
+int
+fs_bytes_left(struct fs_file *file)
+{
+  return file->len - file->index;
+}

src/apps/httpd/fs/404.html

@@ -0,0 +1,21 @@
+<html>
+<head><title>lwIP - A Lightweight TCP/IP Stack</title></head>
+<body bgcolor="white" text="black">
+
+    <table width="100%">
+      <tr valign="top"><td width="80">	  
+	  <a href="http://www.sics.se/"><img src="/img/sics.gif"
+	  border="0" alt="SICS logo" title="SICS logo"></a>
+	</td><td width="500">	  
+	  <h1>lwIP - A Lightweight TCP/IP Stack</h1>
+	  <h2>404 - Page not found</h2>
+	  <p>
+	    Sorry, the page you are requesting was not found on this
+	    server. 
+	  </p>
+	</td><td>
+	  &nbsp;
+	</td></tr>
+      </table>
+</body>
+</html>

src/apps/httpd/fs/index.html

@@ -0,0 +1,47 @@
+<html>
+<head><title>lwIP - A Lightweight TCP/IP Stack</title></head>
+<body bgcolor="white" text="black">
+
+    <table width="100%">
+      <tr valign="top"><td width="80">	  
+	  <a href="http://www.sics.se/"><img src="/img/sics.gif"
+	  border="0" alt="SICS logo" title="SICS logo"></a>
+	</td><td width="500">	  
+	  <h1>lwIP - A Lightweight TCP/IP Stack</h1>
+	  <p>
+	    The web page you are watching was served by a simple web
+	    server running on top of the lightweight TCP/IP stack <a
+	    href="http://www.sics.se/~adam/lwip/">lwIP</a>.
+	  </p>
+	  <p>
+	    lwIP is an open source implementation of the TCP/IP
+	    protocol suite that was originally written by <a
+	    href="http://www.sics.se/~adam/lwip/">Adam Dunkels
+	    of the Swedish Institute of Computer Science</a> but now is
+	    being actively developed by a team of developers
+	    distributed world-wide. Since it's release, lwIP has
+	    spurred a lot of interest and has been ported to several
+	    platforms and operating systems. lwIP can be used either
+	    with or without an underlying OS.
+	  </p>
+	  <p>
+	    The focus of the lwIP TCP/IP implementation is to reduce
+	    the RAM usage while still having a full scale TCP. This
+	    makes lwIP suitable for use in embedded systems with tens
+	    of kilobytes of free RAM and room for around 40 kilobytes
+	    of code ROM.
+	  </p>
+	  <p>
+	    More information about lwIP can be found at the lwIP
+	    homepage at <a
+	    href="http://savannah.nongnu.org/projects/lwip/">http://savannah.nongnu.org/projects/lwip/</a>
+	    or at the lwIP wiki at <a
+	    href="http://lwip.wikia.com/">http://lwip.wikia.com/</a>.
+	  </p>
+	</td><td>
+	  &nbsp;
+	</td></tr>
+      </table>
+</body>
+</html>
+

src/apps/httpd/fsdata.c

@@ -0,0 +1,298 @@
+#include "lwip/apps/fs.h"
+#include "lwip/def.h"
+#include "fsdata.h"
+
+
+#define file_NULL (struct fsdata_file *) NULL
+
+
+static const unsigned int dummy_align__img_sics_gif = 0;
+static const unsigned char data__img_sics_gif[] = {
+/* /img/sics.gif (14 chars) */
+0x2f,0x69,0x6d,0x67,0x2f,0x73,0x69,0x63,0x73,0x2e,0x67,0x69,0x66,0x00,0x00,0x00,
+
+/* HTTP header */
+/* "HTTP/1.0 200 OK
+" (17 bytes) */
+0x48,0x54,0x54,0x50,0x2f,0x31,0x2e,0x30,0x20,0x32,0x30,0x30,0x20,0x4f,0x4b,0x0d,
+0x0a,
+/* "Server: lwIP/1.3.1 (http://savannah.nongnu.org/projects/lwip)
+" (63 bytes) */
+0x53,0x65,0x72,0x76,0x65,0x72,0x3a,0x20,0x6c,0x77,0x49,0x50,0x2f,0x31,0x2e,0x33,
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+/* "Content-type: image/gif
+
+" (27 bytes) */
+0x43,0x6f,0x6e,0x74,0x65,0x6e,0x74,0x2d,0x74,0x79,0x70,0x65,0x3a,0x20,0x69,0x6d,
+0x61,0x67,0x65,0x2f,0x67,0x69,0x66,0x0d,0x0a,0x0d,0x0a,
+/* raw file data (724 bytes) */
+0x47,0x49,0x46,0x38,0x39,0x61,0x46,0x00,0x22,0x00,0xa5,0x00,0x00,0xd9,0x2b,0x39,
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+0x41,0x00,0x00,0x3b,};
+
+static const unsigned int dummy_align__404_html = 1;
+static const unsigned char data__404_html[] = {
+/* /404.html (10 chars) */
+0x2f,0x34,0x30,0x34,0x2e,0x68,0x74,0x6d,0x6c,0x00,0x00,0x00,
+
+/* HTTP header */
+/* "HTTP/1.0 404 File not found
+" (29 bytes) */
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+/* "Server: lwIP/1.3.1 (http://savannah.nongnu.org/projects/lwip)
+" (63 bytes) */
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+/* "Content-type: text/html
+
+" (27 bytes) */
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+
+static const unsigned int dummy_align__index_html = 2;
+static const unsigned char data__index_html[] = {
+/* /index.html (12 chars) */
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+
+/* HTTP header */
+/* "HTTP/1.0 200 OK
+" (17 bytes) */
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+/* "Server: lwIP/1.3.1 (http://savannah.nongnu.org/projects/lwip)
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+/* "Content-type: text/html
+
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+0x6d,0x6c,0x3e,0x0d,0x0a,0x0d,0x0a,};
+
+
+
+const struct fsdata_file file__img_sics_gif[] = { {
+file_NULL,
+data__img_sics_gif,
+data__img_sics_gif + 16,
+sizeof(data__img_sics_gif) - 16,
+1,
+}};
+
+const struct fsdata_file file__404_html[] = { {
+file__img_sics_gif,
+data__404_html,
+data__404_html + 12,
+sizeof(data__404_html) - 12,
+1,
+}};
+
+const struct fsdata_file file__index_html[] = { {
+file__404_html,
+data__index_html,
+data__index_html + 12,
+sizeof(data__index_html) - 12,
+1,
+}};
+
+#define FS_ROOT file__index_html
+#define FS_NUMFILES 3
+

src/apps/httpd/fsdata.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef LWIP_FSDATA_H
+#define LWIP_FSDATA_H
+
+#include "lwip/apps/httpd_opts.h"
+#include "lwip/apps/fs.h"
+
+struct fsdata_file {
+  const struct fsdata_file *next;
+  const unsigned char *name;
+  const unsigned char *data;
+  int len;
+  u8_t flags;
+#if HTTPD_PRECALCULATED_CHECKSUM
+  u16_t chksum_count;
+  const struct fsdata_chksum *chksum;
+#endif /* HTTPD_PRECALCULATED_CHECKSUM */
+};
+
+#endif /* LWIP_FSDATA_H */

src/apps/httpd/httpd_structs.h

@@ -0,0 +1,114 @@
+#ifndef LWIP_HTTPD_STRUCTS_H
+#define LWIP_HTTPD_STRUCTS_H
+
+#include "lwip/apps/httpd.h"
+
+#if LWIP_HTTPD_DYNAMIC_HEADERS
+/** This struct is used for a list of HTTP header strings for various
+ * filename extensions. */
+typedef struct
+{
+  const char *extension;
+  const char *content_type;
+} tHTTPHeader;
+
+/** A list of strings used in HTTP headers (see RFC 1945 HTTP/1.0 and
+ * RFC 2616 HTTP/1.1 for header field definitions) */
+static const char * const g_psHTTPHeaderStrings[] =
+{
+ "HTTP/1.0 200 OK\r\n",
+ "HTTP/1.0 404 File not found\r\n",
+ "HTTP/1.0 400 Bad Request\r\n",
+ "HTTP/1.0 501 Not Implemented\r\n",
+ "HTTP/1.1 200 OK\r\n",
+ "HTTP/1.1 404 File not found\r\n",
+ "HTTP/1.1 400 Bad Request\r\n",
+ "HTTP/1.1 501 Not Implemented\r\n",
+ "Content-Length: ",
+ "Connection: Close\r\n",
+ "Connection: keep-alive\r\n",
+ "Connection: keep-alive\r\nContent-Length: ",
+ "Server: "HTTPD_SERVER_AGENT"\r\n",
+ "\r\n<html><body><h2>404: The requested file cannot be found.</h2></body></html>\r\n"
+#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
+ ,"Connection: keep-alive\r\nContent-Length: 77\r\n\r\n<html><body><h2>404: The requested file cannot be found.</h2></body></html>\r\n"
+#endif
+};
+
+/* Indexes into the g_psHTTPHeaderStrings array */
+#define HTTP_HDR_OK             0 /* 200 OK */
+#define HTTP_HDR_NOT_FOUND      1 /* 404 File not found */
+#define HTTP_HDR_BAD_REQUEST    2 /* 400 Bad request */
+#define HTTP_HDR_NOT_IMPL       3 /* 501 Not Implemented */
+#define HTTP_HDR_OK_11          4 /* 200 OK */
+#define HTTP_HDR_NOT_FOUND_11   5 /* 404 File not found */
+#define HTTP_HDR_BAD_REQUEST_11 6 /* 400 Bad request */
+#define HTTP_HDR_NOT_IMPL_11    7 /* 501 Not Implemented */
+#define HTTP_HDR_CONTENT_LENGTH 8 /* Content-Length: (HTTP 1.0)*/
+#define HTTP_HDR_CONN_CLOSE     9 /* Connection: Close (HTTP 1.1) */
+#define HTTP_HDR_CONN_KEEPALIVE 10 /* Connection: keep-alive (HTTP 1.1) */
+#define HTTP_HDR_KEEPALIVE_LEN  11 /* Connection: keep-alive + Content-Length: (HTTP 1.1)*/
+#define HTTP_HDR_SERVER         12 /* Server: HTTPD_SERVER_AGENT */
+#define DEFAULT_404_HTML        13 /* default 404 body */
+#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
+#define DEFAULT_404_HTML_PERSISTENT 14 /* default 404 body, but including Connection: keep-alive */
+#endif
+
+
+#define HTTP_HDR_HTML           "Content-type: text/html\r\n\r\n"
+#define HTTP_HDR_SSI            "Content-type: text/html\r\nExpires: Fri, 10 Apr 2008 14:00:00 GMT\r\nPragma: no-cache\r\n\r\n"
+#define HTTP_HDR_GIF            "Content-type: image/gif\r\n\r\n"
+#define HTTP_HDR_PNG            "Content-type: image/png\r\n\r\n"
+#define HTTP_HDR_JPG            "Content-type: image/jpeg\r\n\r\n"
+#define HTTP_HDR_BMP            "Content-type: image/bmp\r\n\r\n"
+#define HTTP_HDR_ICO            "Content-type: image/x-icon\r\n\r\n"
+#define HTTP_HDR_APP            "Content-type: application/octet-stream\r\n\r\n"
+#define HTTP_HDR_JS             "Content-type: application/javascript\r\n\r\n"
+#define HTTP_HDR_RA             "Content-type: application/javascript\r\n\r\n"
+#define HTTP_HDR_CSS            "Content-type: text/css\r\n\r\n"
+#define HTTP_HDR_SWF            "Content-type: application/x-shockwave-flash\r\n\r\n"
+#define HTTP_HDR_XML            "Content-type: text/xml\r\n\r\n"
+#define HTTP_HDR_PDF            "Content-type: application/pdf\r\n\r\n"
+#define HTTP_HDR_JSON           "Content-type: application/json\r\n\r\n"
+
+#define HTTP_HDR_DEFAULT_TYPE   "Content-type: text/plain\r\n\r\n"
+
+/** A list of extension-to-HTTP header strings (see outdated RFC 1700 MEDIA TYPES
+ * and http://www.iana.org/assignments/media-types for registered content types
+ * and subtypes) */
+static const tHTTPHeader g_psHTTPHeaders[] =
+{
+ { "html", HTTP_HDR_HTML},
+ { "htm",  HTTP_HDR_HTML},
+ { "shtml",HTTP_HDR_SSI},
+ { "shtm", HTTP_HDR_SSI},
+ { "ssi",  HTTP_HDR_SSI},
+ { "gif",  HTTP_HDR_GIF},
+ { "png",  HTTP_HDR_PNG},
+ { "jpg",  HTTP_HDR_JPG},
+ { "bmp",  HTTP_HDR_BMP},
+ { "ico",  HTTP_HDR_ICO},
+ { "class",HTTP_HDR_APP},
+ { "cls",  HTTP_HDR_APP},
+ { "js",   HTTP_HDR_JS},
+ { "ram",  HTTP_HDR_RA},
+ { "css",  HTTP_HDR_CSS},
+ { "swf",  HTTP_HDR_SWF},
+ { "xml",  HTTP_HDR_XML},
+ { "xsl",  HTTP_HDR_XML},
+ { "pdf",  HTTP_HDR_PDF},
+ { "json", HTTP_HDR_JSON}
+};
+
+#define NUM_HTTP_HEADERS (sizeof(g_psHTTPHeaders) / sizeof(tHTTPHeader))
+
+#endif /* LWIP_HTTPD_DYNAMIC_HEADERS */
+
+#if LWIP_HTTPD_SSI
+static const char * const g_pcSSIExtensions[] = {
+  ".shtml", ".shtm", ".ssi", ".xml"
+};
+#define NUM_SHTML_EXTENSIONS (sizeof(g_pcSSIExtensions) / sizeof(const char *))
+#endif /* LWIP_HTTPD_SSI */
+
+#endif /* LWIP_HTTPD_STRUCTS_H */

src/apps/httpd/makefsdata/makefsdata

@@ -0,0 +1,97 @@
+#!/usr/bin/perl
+
+open(OUTPUT, "> fsdata.c");
+
+chdir("fs");
+open(FILES, "find . -type f |");
+
+while($file = <FILES>) {
+
+    # Do not include files in CVS directories nor backup files.
+    if($file =~ /(CVS|~)/) {
+    	next;
+    }
+    
+    chop($file);
+    
+    open(HEADER, "> /tmp/header") || die $!;
+    if($file =~ /404/) {
+	print(HEADER "HTTP/1.0 404 File not found\r\n");
+    } else {
+	print(HEADER "HTTP/1.0 200 OK\r\n");
+    }
+    print(HEADER "Server: lwIP/pre-0.6 (http://www.sics.se/~adam/lwip/)\r\n");
+    if($file =~ /\.html$/) {
+	print(HEADER "Content-type: text/html\r\n");
+    } elsif($file =~ /\.gif$/) {
+	print(HEADER "Content-type: image/gif\r\n");
+    } elsif($file =~ /\.png$/) {
+	print(HEADER "Content-type: image/png\r\n");
+    } elsif($file =~ /\.jpg$/) {
+	print(HEADER "Content-type: image/jpeg\r\n");
+    } elsif($file =~ /\.class$/) {
+	print(HEADER "Content-type: application/octet-stream\r\n");
+    } elsif($file =~ /\.ram$/) {
+	print(HEADER "Content-type: audio/x-pn-realaudio\r\n");    
+    } else {
+	print(HEADER "Content-type: text/plain\r\n");
+    }
+    print(HEADER "\r\n");
+    close(HEADER);
+
+    unless($file =~ /\.plain$/ || $file =~ /cgi/) {
+	system("cat /tmp/header $file > /tmp/file");
+    } else {
+	system("cp $file /tmp/file");
+    }
+    
+    open(FILE, "/tmp/file");
+    unlink("/tmp/file");
+    unlink("/tmp/header");
+
+    $file =~ s/\.//;
+    $fvar = $file;
+    $fvar =~ s-/-_-g;
+    $fvar =~ s-\.-_-g;
+    print(OUTPUT "static const unsigned char data".$fvar."[] = {\n");
+    print(OUTPUT "\t/* $file */\n\t");
+    for($j = 0; $j < length($file); $j++) {
+	printf(OUTPUT "%#02x, ", unpack("C", substr($file, $j, 1)));
+    }
+    printf(OUTPUT "0,\n");
+    
+    
+    $i = 0;
+    while(read(FILE, $data, 1)) {
+        if($i == 0) {
+            print(OUTPUT "\t");
+        }
+        printf(OUTPUT "%#02x, ", unpack("C", $data));
+        $i++;
+        if($i == 10) {
+            print(OUTPUT "\n");
+            $i = 0;
+        }
+    }
+    print(OUTPUT "};\n\n");
+    close(FILE);
+    push(@fvars, $fvar);
+    push(@files, $file);
+}
+
+for($i = 0; $i < @fvars; $i++) {
+    $file = $files[$i];
+    $fvar = $fvars[$i];
+
+    if($i == 0) {
+        $prevfile = "NULL";
+    } else {
+        $prevfile = "file" . $fvars[$i - 1];
+    }
+    print(OUTPUT "const struct fsdata_file file".$fvar."[] = {{$prevfile, data$fvar, ");
+    print(OUTPUT "data$fvar + ". (length($file) + 1) .", ");
+    print(OUTPUT "sizeof(data$fvar) - ". (length($file) + 1) ."}};\n\n");
+}
+
+print(OUTPUT "#define FS_ROOT file$fvars[$i - 1]\n\n");
+print(OUTPUT "#define FS_NUMFILES $i\n");

src/apps/httpd/makefsdata/readme.txt

@@ -0,0 +1,13 @@
+This directory contains a script ('makefsdata') to create C code suitable for
+httpd for given html pages (or other files) in a directory.
+
+There is also a plain C console application doing the same and extended a bit.
+
+Usage: htmlgen [targetdir] [-s] [-i]s
+   targetdir: relative or absolute path to files to convert
+   switch -s: toggle processing of subdirectories (default is on)
+   switch -e: exclude HTTP header from file (header is created at runtime, default is on)
+   switch -11: include HTTP 1.1 header (1.0 is default)
+
+  if targetdir not specified, makefsdata will attempt to
+  process files in subdirectory 'fs'.

src/apps/lwiperf/lwiperf.c

@@ -0,0 +1,650 @@
+/**
+ * @file
+ * LWIP iperf server implementation
+ *
+ * This is simple "Iperf" server to check your bandwith using Iperf on a PC as client.
+ * It is currently a minimal implementation providing an IPv4 TCP server only.
+ *
+ * @todo:
+ * - implement UDP mode
+ */
+
+/*
+ * Copyright (c) 2014 Simon Goldschmidt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Simon Goldschmidt
+ */
+
+#include "lwip/apps/lwiperf.h"
+
+#include "lwip/tcp.h"
+#include "lwip/sys.h"
+
+#include <string.h>
+
+/* Currently, only TCP-over-IPv4 is implemented (does iperf support IPv6 anyway?) */
+#if LWIP_IPV4 && LWIP_TCP
+
+/** Specify the idle timeout (in seconds) after that the test fails */
+#ifndef LWIPERF_TCP_MAX_IDLE_SEC
+#define LWIPERF_TCP_MAX_IDLE_SEC    10U
+#endif
+#if LWIPERF_TCP_MAX_IDLE_SEC > 255
+#error LWIPERF_TCP_MAX_IDLE_SEC must fit into an u8_t
+#endif
+
+/* File internal memory allocation (struct lwiperf_*): this defaults to
+   the heap */
+#ifndef LWIPERF_ALLOC
+#define LWIPERF_ALLOC(type)         mem_malloc(sizeof(type))
+#define LWIPERF_FREE(type, item)    mem_free(item)
+#endif
+
+/** If this is 1, check that received data has the correct format */
+#ifndef LWIPERF_CHECK_RX_DATA
+#define LWIPERF_CHECK_RX_DATA       0
+#endif
+
+/** This is the Iperf settings struct sent from the client */
+typedef struct _lwiperf_settings {
+#define LWIPERF_FLAGS_ANSWER_TEST 0x80000000
+#define LWIPERF_FLAGS_ANSWER_NOW  0x00000001
+  u32_t flags;
+  u32_t num_threads; /* unused for now */
+  u32_t remote_port;
+  u32_t buffer_len; /* unused for now */
+  u32_t win_band; /* TCP window / UDP rate: unused for now */
+  u32_t amount; /* pos. value: bytes?; neg. values: time (unit is 10ms: 1/100 second) */
+} lwiperf_settings_t;
+
+/** Basic connection handle */
+struct _lwiperf_state_base;
+typedef struct _lwiperf_state_base lwiperf_state_base_t;
+struct _lwiperf_state_base {
+  /* 1=tcp, 0=udp */
+  u8_t tcp;
+  /* 1=server, 0=client */
+  u8_t server;
+  lwiperf_state_base_t* next;
+  lwiperf_state_base_t* related_server_state;
+};
+
+/** Connection handle for a TCP iperf session */
+typedef struct _lwiperf_state_tcp {
+  lwiperf_state_base_t base;
+  struct tcp_pcb* server_pcb;
+  struct tcp_pcb* conn_pcb;
+  u32_t time_started;
+  lwiperf_report_fn report_fn;
+  void* report_arg;
+  u8_t poll_count;
+  u8_t next_num;
+  u32_t bytes_transferred;
+  lwiperf_settings_t settings;
+  u8_t have_settings_buf;
+} lwiperf_state_tcp_t;
+
+/** List of active iperf sessions */
+static lwiperf_state_base_t* lwiperf_all_connections;
+/** A const buffer to send from: we want to measure sending, not copying! */
+static const u8_t lwiperf_txbuf_const[1600] = {
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+  '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
+};
+
+static err_t lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb);
+static void lwiperf_tcp_err(void *arg, err_t err);
+
+/** Add an iperf session to the 'active' list */
+static void
+lwiperf_list_add(lwiperf_state_base_t* item)
+{
+  if (lwiperf_all_connections == NULL) {
+    lwiperf_all_connections = item;
+  } else {
+    item = lwiperf_all_connections;
+  }
+}
+
+/** Remove an iperf session from the 'active' list */
+static void
+lwiperf_list_remove(lwiperf_state_base_t* item)
+{
+  lwiperf_state_base_t* prev = NULL;
+  lwiperf_state_base_t* iter;
+  for (iter = lwiperf_all_connections; iter != NULL; prev = iter, iter = iter->next) {
+    if (iter == item) {
+      if (prev == NULL) {
+        lwiperf_all_connections = iter->next;
+      } else {
+        prev->next = item;
+      }
+      /* @debug: ensure this item is listed only once */
+      for (iter = iter->next; iter != NULL; iter = iter->next) {
+        LWIP_ASSERT("duplicate entry", iter != item);
+      }
+      break;
+    }
+  }
+}
+
+/** Call the report function of an iperf tcp session */
+static void
+lwip_tcp_conn_report(lwiperf_state_tcp_t* conn, enum lwiperf_report_type report_type)
+{
+  if ((conn != NULL) && (conn->report_fn != NULL)) {
+    u32_t now, duration_ms, bandwidth_kbitpsec;
+    now = sys_now();
+    duration_ms = now - conn->time_started;
+    if (duration_ms == 0) {
+      bandwidth_kbitpsec = 0;
+    } else {
+      bandwidth_kbitpsec = (conn->bytes_transferred / duration_ms) * 8U;
+    }
+    conn->report_fn(conn->report_arg, report_type,
+      &conn->conn_pcb->local_ip, conn->conn_pcb->local_port,
+      &conn->conn_pcb->remote_ip, conn->conn_pcb->remote_port,
+      conn->bytes_transferred, duration_ms, bandwidth_kbitpsec);
+  }
+}
+
+/** Close an iperf tcp session */
+static void
+lwiperf_tcp_close(lwiperf_state_tcp_t* conn, enum lwiperf_report_type report_type)
+{
+  err_t err;
+
+  lwip_tcp_conn_report(conn, report_type);
+  lwiperf_list_remove(&conn->base);
+  if (conn->conn_pcb != NULL) {
+    tcp_arg(conn->conn_pcb, NULL);
+    tcp_poll(conn->conn_pcb, NULL, 0);
+    tcp_sent(conn->conn_pcb, NULL);
+    tcp_recv(conn->conn_pcb, NULL);
+    tcp_err(conn->conn_pcb, NULL);
+    err = tcp_close(conn->conn_pcb);
+    if (err != ERR_OK) {
+      /* don't want to wait for free memory here... */
+      tcp_abort(conn->conn_pcb);
+    }
+  } else {
+    /* no conn pcb, this is the server pcb */
+    err = tcp_close(conn->server_pcb);
+    LWIP_ASSERT("error", err != ERR_OK);
+  }
+  LWIPERF_FREE(lwiperf_state_tcp_t, conn);
+}
+
+/** Try to send more data on an iperf tcp session */
+static err_t
+lwiperf_tcp_client_send_more(lwiperf_state_tcp_t* conn)
+{
+  int send_more;
+  err_t err;
+  u16_t txlen;
+  u16_t txlen_max;
+  void* txptr;
+  u8_t apiflags;
+
+  LWIP_ASSERT("conn invalid", (conn != NULL) && conn->base.tcp && (conn->base.server == 0));
+
+  do {
+    send_more = 0;
+    if (conn->settings.amount & PP_HTONL(0x80000000)) {
+      /* this session is time-limited */
+      u32_t now = sys_now();
+      u32_t diff_ms = now - conn->time_started;
+      u32_t time = (u32_t)-(s32_t)htonl(conn->settings.amount);
+      u32_t time_ms = time * 10;
+      if (diff_ms >= time_ms) {
+        /* time specified by the client is over -> close the connection */
+        lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT);
+        return ERR_OK;
+      }
+    } else {
+      /* this session is byte-limited */
+      u32_t amount_bytes = htonl(conn->settings.amount);
+      /* @todo: this can send up to 1*MSS more than requested... */
+      if (amount_bytes >= conn->bytes_transferred) {
+        /* all requested bytes transferred -> close the connection */
+        lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT);
+        return ERR_OK;
+      }
+    }
+
+    if (conn->bytes_transferred < 24) {
+      /* transmit the settings a first time */
+      txptr = &((u8_t*)&conn->settings)[conn->bytes_transferred];
+      txlen_max = (u16_t)(24 - conn->bytes_transferred);
+      apiflags = TCP_WRITE_FLAG_COPY;
+    } else if (conn->bytes_transferred < 48) {
+      /* transmit the settings a second time */
+      txptr = &((u8_t*)&conn->settings)[conn->bytes_transferred - 24];
+      txlen_max = (u16_t)(48 - conn->bytes_transferred);
+      apiflags = TCP_WRITE_FLAG_COPY | TCP_WRITE_FLAG_MORE;
+      send_more = 1;
+    } else {
+      /* transmit data */
+      /* @todo: every x bytes, transmit the settings again */
+      txptr = (void*)(size_t)&lwiperf_txbuf_const[conn->bytes_transferred % 10];
+      txlen_max = TCP_MSS;
+      if (conn->bytes_transferred == 48) { /* @todo: fix this for intermediate settings, too */
+        txlen_max = TCP_MSS - 24;
+      }
+      apiflags = 0; /* no copying needed */
+      send_more = 1;
+    }
+    txlen = txlen_max;
+    do {
+      err = tcp_write(conn->conn_pcb, txptr, txlen, apiflags);
+      if (err ==  ERR_MEM) {
+        txlen /= 2;
+      }
+    } while ((err == ERR_MEM) && (txlen >= (TCP_MSS/2)));
+
+    if (err == ERR_OK) {
+      conn->bytes_transferred += txlen;
+    } else {
+      send_more = 0;
+    }
+  } while(send_more);
+
+  tcp_output(conn->conn_pcb);
+  return ERR_OK;
+}
+
+/** TCP sent callback, try to send more data */
+static err_t
+lwiperf_tcp_client_sent(void *arg, struct tcp_pcb *tpcb, u16_t len)
+{
+  lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+  /* @todo: check 'len' (e.g. to time ACK of all data)? for now, we just send more... */
+  LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb);
+  LWIP_UNUSED_ARG(tpcb);
+  LWIP_UNUSED_ARG(len);
+
+  conn->poll_count = 0;
+
+  return lwiperf_tcp_client_send_more(conn);
+}
+
+/** TCP connected callback (active connection), send data now */
+static err_t
+lwiperf_tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err)
+{
+  lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+  LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb);
+  LWIP_UNUSED_ARG(tpcb);
+  if (err != ERR_OK) {
+    lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
+    return ERR_OK;
+  }
+  conn->poll_count = 0;
+  conn->time_started = sys_now();
+  return lwiperf_tcp_client_send_more(conn);
+}
+
+/** Start TCP connection back to the client (either parallel or after the
+ * receive test has finished.
+ */
+static err_t
+lwiperf_tx_start(lwiperf_state_tcp_t* conn)
+{
+  err_t err;
+  lwiperf_state_tcp_t* client_conn;
+  struct tcp_pcb* newpcb;
+  ip_addr_t remote_addr;
+  u16_t remote_port;
+
+  client_conn = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
+  if (client_conn == NULL) {
+    return ERR_MEM;
+  }
+  newpcb = tcp_new();
+  if (newpcb == NULL) {
+    LWIPERF_FREE(lwiperf_state_tcp_t, client_conn);
+    return ERR_MEM;
+  }
+
+  memcpy(client_conn, conn, sizeof(lwiperf_state_tcp_t));
+  client_conn->base.server = 0;
+  client_conn->server_pcb = NULL;
+  client_conn->conn_pcb = newpcb;
+  client_conn->time_started = sys_now(); /* TODO: set this again on 'connected' */
+  client_conn->poll_count = 0;
+  client_conn->next_num = 4; /* initial nr is '4' since the header has 24 byte */
+  client_conn->bytes_transferred = 0;
+  client_conn->settings.flags = 0; /* prevent the remote side starting back as client again */
+
+  tcp_arg(newpcb, client_conn);
+  tcp_sent(newpcb, lwiperf_tcp_client_sent);
+  tcp_poll(newpcb, lwiperf_tcp_poll, 2U);
+  tcp_err(newpcb, lwiperf_tcp_err);
+
+  ip_addr_copy(remote_addr, conn->conn_pcb->remote_ip);
+  remote_port = (u16_t)htonl(client_conn->settings.remote_port);
+
+  err = tcp_connect(newpcb, &remote_addr, remote_port, lwiperf_tcp_client_connected);
+  if (err != ERR_OK) {
+    lwiperf_tcp_close(client_conn, LWIPERF_TCP_ABORTED_LOCAL);
+    return err;
+  }
+  lwiperf_list_add(&client_conn->base);
+  return ERR_OK;
+}
+
+/** Receive data on an iperf tcp session */
+static err_t
+lwiperf_tcp_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)
+{
+  u16_t tot_len;
+  u32_t packet_idx;
+  struct pbuf* q;
+  lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+
+  LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb);
+  LWIP_UNUSED_ARG(tpcb);
+
+  if (err != ERR_OK) {
+    lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
+    return ERR_OK;
+  }
+  if (p == NULL) {
+    /* connection closed -> test done */
+    if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) ==
+        PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) {
+      /* client requested transmission after end of test */
+      lwiperf_tx_start(conn);
+    }
+    lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_SERVER);
+    return ERR_OK;
+  }
+  tot_len = p->tot_len;
+
+  conn->poll_count = 0;
+
+  if ((!conn->have_settings_buf) || ((conn->bytes_transferred -24) % (1024*128) == 0)) {
+    /* wait for 24-byte header */
+    if (p->tot_len < sizeof(lwiperf_settings_t)) {
+      lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
+      pbuf_free(p);
+      return ERR_VAL;
+    }
+    if (!conn->have_settings_buf) {
+      if (pbuf_copy_partial(p, &conn->settings, sizeof(lwiperf_settings_t), 0) != sizeof(lwiperf_settings_t)) {
+        lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL);
+        pbuf_free(p);
+        return ERR_VAL;
+      }
+      conn->have_settings_buf = 1;
+      if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) ==
+        PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) {
+          /* client requested parallel transmission test */
+          err_t err2 = lwiperf_tx_start(conn);
+          if (err2 != ERR_OK) {
+            lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_TXERROR);
+            pbuf_free(p);
+            return err2;
+          }
+      }
+    } else {
+      if (pbuf_memcmp(p, 0, &conn->settings, sizeof(lwiperf_settings_t)) != 0) {
+        lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
+        pbuf_free(p);
+        return ERR_VAL;
+      }
+    }
+    conn->bytes_transferred += sizeof(lwiperf_settings_t);
+    if(conn->bytes_transferred <= 24) {
+      conn->time_started = sys_now();
+      tcp_recved(tpcb, p->tot_len);
+      pbuf_free(p);
+      return ERR_OK;
+    }
+    conn->next_num = 4; /* 24 bytes received... */
+    err = pbuf_header(p, -24);
+    LWIP_ASSERT("pbuf_header failed", err == ERR_OK);
+  }
+
+  packet_idx = 0;
+  for (q = p; q != NULL; q = q->next) {
+#if LWIPERF_CHECK_RX_DATA
+    const u8_t* payload = (const u8_t*)q->payload;
+    u16_t i;
+    for (i = 0; i < q->len; i++) {
+      u8_t val = payload[i];
+      u8_t num = val - '0';
+      if (num == conn->next_num) {
+        conn->next_num++;
+        if (conn->next_num == 10) {
+          conn->next_num = 0;
+        }
+      } else {
+        lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
+        pbuf_free(p);
+        return ERR_VAL;
+      }
+    }
+    packet_idx += i;
+#else
+    packet_idx += q->len;
+#endif
+  }
+  LWIP_ASSERT("count mismatch", packet_idx == p->tot_len);
+  conn->bytes_transferred += packet_idx;
+  tcp_recved(tpcb, tot_len);
+  pbuf_free(p);
+  return ERR_OK;
+}
+
+/** Error callback, iperf tcp session aborted */
+static void
+lwiperf_tcp_err(void *arg, err_t err)
+{
+  lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+  LWIP_UNUSED_ARG(err);
+  lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
+}
+
+/** TCP poll callback, try to send more data */
+static err_t
+lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb)
+{
+  lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+  LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb);
+  LWIP_UNUSED_ARG(tpcb);
+  if (++conn->poll_count >= LWIPERF_TCP_MAX_IDLE_SEC) {
+    lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL);
+    return ERR_OK; /* lwiperf_tcp_close frees conn */
+  }
+
+  if (!conn->base.server) {
+    lwiperf_tcp_client_send_more(conn);
+  }
+
+  return ERR_OK;
+}
+
+/** This is called when a new client connects for an iperf tcp session */
+static err_t
+lwiperf_tcp_accept(void *arg, struct tcp_pcb *newpcb, err_t err)
+{
+  lwiperf_state_tcp_t *s, *conn;
+  if ((err != ERR_OK) || (newpcb == NULL) || (arg == NULL)) {
+    return ERR_VAL;
+  }
+
+  s = (lwiperf_state_tcp_t*)arg;
+  conn = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
+  if (conn == NULL) {
+    return ERR_MEM;
+  }
+  memset(conn, 0, sizeof(lwiperf_state_tcp_t));
+  conn->base.tcp = 1;
+  conn->base.server = 1;
+  conn->base.related_server_state = &s->base;
+  conn->server_pcb = s->server_pcb;
+  conn->conn_pcb = newpcb;
+  conn->time_started = sys_now();
+  conn->report_fn = s->report_fn;
+  conn->report_arg = s->report_arg;
+
+  /* setup the tcp rx connection */
+  tcp_arg(newpcb, conn);
+  tcp_recv(newpcb, lwiperf_tcp_recv);
+  tcp_poll(newpcb, lwiperf_tcp_poll, 2U);
+  tcp_err(conn->conn_pcb, lwiperf_tcp_err);
+
+  lwiperf_list_add(&conn->base);
+  return ERR_OK;
+}
+
+/** Start a TCP iperf server on the default TCP port (5001) and listen for
+ * incoming connections from iperf clients.
+ *
+ * @returns a connection handle that can be used to abort the server
+ *          by calling @ref lwiperf_abort()
+ */
+void*
+lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void* report_arg)
+{
+  return lwiperf_start_tcp_server(IP_ADDR_ANY, LWIPERF_TCP_PORT_DEFAULT,
+    report_fn, report_arg);
+}
+
+/** Start a TCP iperf server on a specific IP address and port and listen for
+ * incoming connections from iperf clients.
+ *
+ * @returns a connection handle that can be used to abort the server
+ *          by calling @ref lwiperf_abort()
+ */
+void*
+lwiperf_start_tcp_server(const ip_addr_t* local_addr, u16_t local_port,
+  lwiperf_report_fn report_fn, void* report_arg)
+{
+  err_t err;
+  struct tcp_pcb* pcb;
+  lwiperf_state_tcp_t* s;
+
+  if(local_addr == NULL) {
+    return NULL;
+  }
+
+  s = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
+  if (s == NULL) {
+    return NULL;
+  }
+  memset(s, 0, sizeof(lwiperf_state_tcp_t));
+  s->base.tcp = 1;
+  s->base.server = 1;
+  s->report_fn = report_fn;
+  s->report_arg = report_arg;
+
+  pcb = tcp_new();
+  if (pcb != NULL) {
+    err = tcp_bind(pcb, local_addr, local_port);
+    if (err == ERR_OK) {
+      s->server_pcb = tcp_listen_with_backlog(pcb, 1);
+    }
+  }
+  if (s->server_pcb == NULL) {
+    if (pcb != NULL) {
+      tcp_close(pcb);
+    }
+    LWIPERF_FREE(lwiperf_state_tcp_t, s);
+    return NULL;
+  }
+  pcb = NULL;
+
+  tcp_arg(s->server_pcb, s);
+  tcp_accept(s->server_pcb, lwiperf_tcp_accept);
+
+  lwiperf_list_add(&s->base);
+  return s;
+}
+
+/** Abort an iperf session (handle returned by lwiperf_start_tcp_server*()) */
+void
+lwiperf_abort(void* lwiperf_session)
+{
+  lwiperf_state_base_t* i, *dealloc, *last = NULL;
+
+  for (i = lwiperf_all_connections; i != NULL; ) {
+    if ((i == lwiperf_session) || (i->related_server_state == lwiperf_session)) {
+      dealloc = i;
+      i = i->next;
+      if (last != NULL) {
+        last->next = i;
+      }
+      LWIPERF_FREE(lwiperf_state_tcp_t, dealloc); /* TODO: type? */
+    } else {
+      last = i;
+      i = i->next;
+    }
+  }
+}
+
+#endif /* LWIP_IPV4 && LWIP_TCP */

src/apps/netbiosns/netbiosns.c

@@ -0,0 +1,350 @@
+/**
+ * @file
+ * NetBIOS name service responder
+ *
+ * This is an example implementation of a NetBIOS name server.
+ * It responds to name queries for a configurable name.
+ * Name resolving is not supported.
+ *
+ * Note that the device doesn't broadcast it's own name so can't
+ * detect duplicate names!
+ */
+
+/*
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ */
+
+#include "lwip/apps/netbiosns.h"
+
+#if LWIP_IPV4 && LWIP_UDP  /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/udp.h"
+#include "lwip/netif.h"
+
+#include <string.h>
+
+/** default port number for "NetBIOS Name service */
+#define NETBIOS_PORT     137
+
+/** size of a NetBIOS name */
+#define NETBIOS_NAME_LEN 16
+
+/** The Time-To-Live for NetBIOS name responds (in seconds)
+ * Default is 300000 seconds (3 days, 11 hours, 20 minutes) */
+#define NETBIOS_NAME_TTL 300000u
+
+/** NetBIOS header flags */
+#define NETB_HFLAG_RESPONSE           0x8000U
+#define NETB_HFLAG_OPCODE             0x7800U
+#define NETB_HFLAG_OPCODE_NAME_QUERY  0x0000U
+#define NETB_HFLAG_AUTHORATIVE        0x0400U
+#define NETB_HFLAG_TRUNCATED          0x0200U
+#define NETB_HFLAG_RECURS_DESIRED     0x0100U
+#define NETB_HFLAG_RECURS_AVAILABLE   0x0080U
+#define NETB_HFLAG_BROADCAST          0x0010U
+#define NETB_HFLAG_REPLYCODE          0x0008U
+#define NETB_HFLAG_REPLYCODE_NOERROR  0x0000U
+
+/** NetBIOS name flags */
+#define NETB_NFLAG_UNIQUE             0x8000U
+#define NETB_NFLAG_NODETYPE           0x6000U
+#define NETB_NFLAG_NODETYPE_HNODE     0x6000U
+#define NETB_NFLAG_NODETYPE_MNODE     0x4000U
+#define NETB_NFLAG_NODETYPE_PNODE     0x2000U
+#define NETB_NFLAG_NODETYPE_BNODE     0x0000U
+
+/** NetBIOS message header */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct netbios_hdr {
+  PACK_STRUCT_FIELD(u16_t trans_id);
+  PACK_STRUCT_FIELD(u16_t flags);
+  PACK_STRUCT_FIELD(u16_t questions);
+  PACK_STRUCT_FIELD(u16_t answerRRs);
+  PACK_STRUCT_FIELD(u16_t authorityRRs);
+  PACK_STRUCT_FIELD(u16_t additionalRRs);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+/** NetBIOS message name part */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct netbios_name_hdr {
+  PACK_STRUCT_FLD_8(u8_t  nametype);
+  PACK_STRUCT_FLD_8(u8_t  encname[(NETBIOS_NAME_LEN*2)+1]);
+  PACK_STRUCT_FIELD(u16_t type);
+  PACK_STRUCT_FIELD(u16_t cls);
+  PACK_STRUCT_FIELD(u32_t ttl);
+  PACK_STRUCT_FIELD(u16_t datalen);
+  PACK_STRUCT_FIELD(u16_t flags);
+  PACK_STRUCT_FLD_S(ip4_addr_p_t addr);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+/** NetBIOS message */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct netbios_resp
+{
+  struct netbios_hdr      resp_hdr;
+  struct netbios_name_hdr resp_name;
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#ifdef NETBIOS_LWIP_NAME
+#define NETBIOS_LOCAL_NAME NETBIOS_LWIP_NAME
+#else
+static char netbiosns_local_name[NETBIOS_NAME_LEN];
+#define NETBIOS_LOCAL_NAME netbiosns_local_name
+#endif
+
+struct udp_pcb *netbiosns_pcb;
+
+/** Decode a NetBIOS name (from packet to string) */
+static int
+netbiosns_name_decode(char *name_enc, char *name_dec, int name_dec_len)
+{
+  char *pname;
+  char  cname;
+  char  cnbname;
+  int   idx = 0;
+
+  LWIP_UNUSED_ARG(name_dec_len);
+
+  /* Start decoding netbios name. */
+  pname  = name_enc;
+  for (;;) {
+    /* Every two characters of the first level-encoded name
+     * turn into one character in the decoded name. */
+    cname = *pname;
+    if (cname == '\0')
+      break;    /* no more characters */
+    if (cname == '.')
+      break;    /* scope ID follows */
+    if (cname < 'A' || cname > 'Z') {
+      /* Not legal. */
+      return -1;
+    }
+    cname -= 'A';
+    cnbname = cname << 4;
+    pname++;
+
+    cname = *pname;
+    if (cname == '\0' || cname == '.') {
+      /* No more characters in the name - but we're in
+       * the middle of a pair.  Not legal. */
+      return -1;
+    }
+    if (cname < 'A' || cname > 'Z') {
+      /* Not legal. */
+      return -1;
+    }
+    cname -= 'A';
+    cnbname |= cname;
+    pname++;
+
+    /* Do we have room to store the character? */
+    if (idx < NETBIOS_NAME_LEN) {
+      /* Yes - store the character. */
+      name_dec[idx++] = (cnbname!=' '?cnbname:'\0');
+    }
+  }
+
+  return 0;
+}
+
+#if 0 /* function currently unused */
+/** Encode a NetBIOS name (from string to packet) - currently unused because
+    we don't ask for names. */
+static int
+netbiosns_name_encode(char *name_enc, char *name_dec, int name_dec_len)
+{
+  char         *pname;
+  char          cname;
+  unsigned char ucname;
+  int           idx = 0;
+
+  /* Start encoding netbios name. */
+  pname = name_enc;
+
+  for (;;) {
+    /* Every two characters of the first level-encoded name
+     * turn into one character in the decoded name. */
+    cname = *pname;
+    if (cname == '\0')
+      break;    /* no more characters */
+    if (cname == '.')
+      break;    /* scope ID follows */
+    if ((cname < 'A' || cname > 'Z') && (cname < '0' || cname > '9')) {
+      /* Not legal. */
+      return -1;
+    }
+
+    /* Do we have room to store the character? */
+    if (idx >= name_dec_len) {
+      return -1;
+    }
+
+    /* Yes - store the character. */
+    ucname = cname;
+    name_dec[idx++] = ('A'+((ucname>>4) & 0x0F));
+    name_dec[idx++] = ('A'+( ucname     & 0x0F));
+    pname++;
+  }
+
+  /* Fill with "space" coding */
+  for (;idx < name_dec_len - 1;) {
+    name_dec[idx++] = 'C';
+    name_dec[idx++] = 'A';
+  }
+
+  /* Terminate string */
+  name_dec[idx] = '\0';
+
+  return 0;
+}
+#endif /* 0 */
+
+/** NetBIOS Name service recv callback */
+static void
+netbiosns_recv(void *arg, struct udp_pcb *upcb, struct pbuf *p, const ip_addr_t *addr, u16_t port)
+{
+  LWIP_UNUSED_ARG(arg);
+
+  /* if packet is valid */
+  if (p != NULL) {
+    char   netbios_name[NETBIOS_NAME_LEN+1];
+    struct netbios_hdr*      netbios_hdr      = (struct netbios_hdr*)p->payload;
+    struct netbios_name_hdr* netbios_name_hdr = (struct netbios_name_hdr*)(netbios_hdr+1);
+
+    /* we only answer if we got a default interface */
+    if (netif_default != NULL) {
+      /* @todo: do we need to check answerRRs/authorityRRs/additionalRRs? */
+      /* if the packet is a NetBIOS name query question */
+      if (((netbios_hdr->flags & PP_NTOHS(NETB_HFLAG_OPCODE)) == PP_NTOHS(NETB_HFLAG_OPCODE_NAME_QUERY)) &&
+          ((netbios_hdr->flags & PP_NTOHS(NETB_HFLAG_RESPONSE)) == 0) &&
+           (netbios_hdr->questions == PP_NTOHS(1))) {
+        /* decode the NetBIOS name */
+        netbiosns_name_decode((char*)(netbios_name_hdr->encname), netbios_name, sizeof(netbios_name));
+        /* if the packet is for us */
+        if (NETBIOS_STRCMP(netbios_name, NETBIOS_LOCAL_NAME) == 0) {
+          struct pbuf *q;
+          struct netbios_resp *resp;
+
+          q = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct netbios_resp), PBUF_RAM);
+          if (q != NULL) {
+            resp = (struct netbios_resp*)q->payload;
+
+            /* prepare NetBIOS header response */
+            resp->resp_hdr.trans_id      = netbios_hdr->trans_id;
+            resp->resp_hdr.flags         = PP_HTONS(NETB_HFLAG_RESPONSE |
+                                                 NETB_HFLAG_OPCODE_NAME_QUERY |
+                                                 NETB_HFLAG_AUTHORATIVE |
+                                                 NETB_HFLAG_RECURS_DESIRED);
+            resp->resp_hdr.questions     = 0;
+            resp->resp_hdr.answerRRs     = PP_HTONS(1);
+            resp->resp_hdr.authorityRRs  = 0;
+            resp->resp_hdr.additionalRRs = 0;
+
+            /* prepare NetBIOS header datas */
+            MEMCPY( resp->resp_name.encname, netbios_name_hdr->encname, sizeof(netbios_name_hdr->encname));
+            resp->resp_name.nametype     = netbios_name_hdr->nametype;
+            resp->resp_name.type         = netbios_name_hdr->type;
+            resp->resp_name.cls          = netbios_name_hdr->cls;
+            resp->resp_name.ttl          = PP_HTONL(NETBIOS_NAME_TTL);
+            resp->resp_name.datalen      = PP_HTONS(sizeof(resp->resp_name.flags)+sizeof(resp->resp_name.addr));
+            resp->resp_name.flags        = PP_HTONS(NETB_NFLAG_NODETYPE_BNODE);
+            ip4_addr_copy(resp->resp_name.addr, *netif_ip4_addr(netif_default));
+
+            /* send the NetBIOS response */
+            udp_sendto(upcb, q, addr, port);
+
+            /* free the "reference" pbuf */
+            pbuf_free(q);
+          }
+        }
+      }
+    }
+    /* free the pbuf */
+    pbuf_free(p);
+  }
+}
+
+void
+netbiosns_init(void)
+{
+#ifdef NETBIOS_LWIP_NAME
+  LWIP_ASSERT("NetBIOS name is too long!", strlen(NETBIOS_LWIP_NAME) < NETBIOS_NAME_LEN);
+#endif
+
+  netbiosns_pcb = udp_new_ip_type(IPADDR_TYPE_ANY);
+  if (netbiosns_pcb != NULL) {
+    /* we have to be allowed to send broadcast packets! */
+    netbiosns_pcb->so_options |= SOF_BROADCAST;
+    udp_bind(netbiosns_pcb, IP_ANY_TYPE, NETBIOS_PORT);
+    udp_recv(netbiosns_pcb, netbiosns_recv, netbiosns_pcb);
+  }
+}
+
+#ifndef NETBIOS_LWIP_NAME
+/* ATTENTION: the hostname must be <= 15 characters! */
+void
+netbiosns_set_name(const char* hostname)
+{
+  size_t copy_len = strlen(hostname);
+  LWIP_ASSERT("NetBIOS name is too long!", copy_len < NETBIOS_NAME_LEN);
+  if(copy_len >= NETBIOS_NAME_LEN) {
+    copy_len = NETBIOS_NAME_LEN - 1;
+  }
+  memcpy(netbiosns_local_name, hostname, copy_len + 1);
+}
+#endif
+
+void
+netbiosns_stop(void)
+{
+  if (netbiosns_pcb != NULL) {
+    udp_remove(netbiosns_pcb);
+    netbiosns_pcb = NULL;
+  }
+}
+
+#endif /* LWIP_IPV4 && LWIP_UDP */

src/apps/snmp/LwipMibCompiler/CCodeGeneration/CCodeGeneration.csproj

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>CCodeGeneration</RootNamespace>
+    <AssemblyName>CCodeGeneration</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="CFile.cs" />
+    <Compile Include="Code.cs" />
+    <Compile Include="CodeContainerBase.cs" />
+    <Compile Include="CodeElement.cs" />
+    <Compile Include="Comment.cs" />
+    <Compile Include="EmptyLine.cs" />
+    <Compile Include="Function.cs" />
+    <Compile Include="CGenerator.cs" />
+    <Compile Include="IfThenElse.cs" />
+    <Compile Include="PlainText.cs" />
+    <Compile Include="Switch.cs" />
+    <Compile Include="PP_If.cs" />
+    <Compile Include="PP_Ifdef.cs" />
+    <Compile Include="PP_Include.cs" />
+    <Compile Include="FunctionDeclaration.cs" />
+    <Compile Include="PP_Macro.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="VariableDeclaration.cs" />
+    <Compile Include="VariablePrototype.cs" />
+    <Compile Include="VariableType.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

src/apps/snmp/LwipMibCompiler/CCodeGeneration/CFile.cs

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace CCodeGeneration
+{
+	public class CFile: CodeContainerBase
+	{
+		public CFile()
+		{
+			base.IncreaseLevel = false;
+		}
+
+		public void Save(CGenerator generator)
+		{
+			if (generator == null)
+			{
+				throw new ArgumentNullException("generator");
+			}
+
+			this.GenerateCode(0, generator);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/CGenerator.cs

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.IO;
+
+namespace CCodeGeneration
+{
+	public class CGenerator
+	{
+		public TextWriter OutputStream { get; private set; }
+		public string File { get; private set; }
+		public uint IndentCount { get; private set; }
+		public string IndentChar { get; private set; }
+		public string NewLine { get; private set; }
+
+		public CGenerator(System.IO.TextWriter outputStream, string file, uint indentCount, string indentChar, string newLine)
+		{
+			this.OutputStream = outputStream;
+			this.File     = file;
+			this.IndentCount  = indentCount;
+			this.IndentChar   = indentChar;
+			this.NewLine      = newLine;
+		}
+
+		public string FileName
+		{
+			get
+			{
+				if (!String.IsNullOrWhiteSpace(this.File))
+				{
+					return Path.GetFileName(this.File);
+				}
+
+				return null;
+			}
+		}
+
+		public void WriteSequence(string value, uint repetitions)
+		{
+			while (repetitions > 0)
+			{
+				this.OutputStream.Write(value);
+				repetitions--;
+			}
+		}
+
+		public void IndentLine(int level)
+		{
+			while (level > 0)
+			{
+				WriteSequence(this.IndentChar, this.IndentCount);
+				level--;
+			}
+		}
+
+		public void WriteNewLine()
+		{
+			this.OutputStream.Write(this.NewLine);
+		}
+
+		public void WriteMultilineString(string value, int level = 0)
+		{
+			if (String.IsNullOrEmpty(value))
+			{
+				return;
+			}
+
+			// only \n and \r\n are recognized as linebreaks
+			string[] lines = value.Split(new char[] { '\n' }, StringSplitOptions.None);
+
+			for (int l = 0; l < (lines.Length - 1); l++)
+			{
+				if (lines[l].EndsWith("\r"))
+				{
+					this.OutputStream.Write(lines[l].Substring(0, lines[l].Length-1));
+				}
+				else
+				{
+					this.OutputStream.Write(lines[l]);
+				}
+
+				this.WriteNewLine();
+				this.IndentLine(level);
+			}
+
+			this.OutputStream.Write(lines[lines.Length - 1]);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/Code.cs

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class Code: CodeElement
+	{
+		public string Code_ { get; set; }
+
+		public Code()
+		{
+		}
+
+		public Code(string code)
+		{
+			this.Code_ = code;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			generator.IndentLine(level);
+			generator.WriteMultilineString(this.Code_, level);
+			generator.WriteNewLine();
+		}
+
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/CodeContainerBase.cs

@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System.Collections.Generic;
+using System;
+
+namespace CCodeGeneration
+{
+	public class CodeContainerBase: CodeElement
+	{
+		private readonly List<CodeElement> declarations = new List<CodeElement>();
+		private readonly List<CodeElement> innerElements = new List<CodeElement>();
+		private bool increaseLevel = true;
+
+		public List<CodeElement> Declarations
+		{
+			get { return this.declarations; }
+		}
+
+		public List<CodeElement> InnerElements
+		{
+			get { return this.innerElements; }
+		}
+
+		protected bool IncreaseLevel
+		{
+			get { return this.increaseLevel; }
+			set { this.increaseLevel = value; }
+		}
+
+		public void AddElements(IList<CodeElement> elements, params CodeElement[] spacerElements)
+		{
+			if (elements != null)
+			{
+				if ((spacerElements == null) || (spacerElements.Length == 0))
+				{
+					this.innerElements.AddRange(elements);
+				}
+				else
+				{
+					bool spacerAdded = false;
+
+					foreach (CodeElement element in elements)
+					{
+						this.innerElements.Add(element);
+						this.innerElements.AddRange(spacerElements);
+						spacerAdded = true;
+					}
+
+					if (spacerAdded)
+					{
+						// remove last spacer again
+						this.innerElements.RemoveRange(this.innerElements.Count - spacerElements.Length, spacerElements.Length);
+					}					
+				}
+			}
+		}
+ 
+		public CodeElement AddElement(CodeElement element)
+		{
+			if (element != null)
+			{
+				this.innerElements.Add(element);
+			}
+
+			return element;
+		}
+
+		public Code AddCode(string code)
+		{
+			return this.AddElement(new Code(code)) as Code;
+		}
+
+		public Code AddCodeFormat(string codeFormat, params object[] args)
+		{
+			return this.AddElement(new Code(String.Format(codeFormat, args))) as Code;
+		}
+
+		public CodeElement AddDeclaration(CodeElement declaration)
+		{
+			if (declaration != null)
+			{
+				this.declarations.Add(declaration);
+			}
+
+			return declaration;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (this.increaseLevel)
+				level++;
+
+			if (this.declarations.Count > 0)
+			{
+				foreach (CodeElement element in this.declarations)
+				{
+					element.GenerateCode(level, generator);
+				}
+
+				EmptyLine.SingleLine.GenerateCode(level, generator);
+			}
+
+			foreach (CodeElement element in this.innerElements)
+			{
+				element.GenerateCode(level, generator);
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/CodeElement.cs

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class CodeElement
+	{
+		public virtual void GenerateCode(int level, CGenerator generator)
+		{
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/Comment.cs

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class Comment: CodeElement
+	{
+		public const string CommentStart = "/*";
+		public const string CommentEnd = "*/";
+
+		public string Comment_ { get; set; }
+		public bool SingleLine { get; set; }
+
+		public Comment()
+		{
+		}
+
+		public Comment(string comment, bool singleLine = false)
+		{
+			this.Comment_   = comment;
+			this.SingleLine = singleLine;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			generator.IndentLine(level);
+			generator.OutputStream.Write(CommentStart);
+
+			if (!this.SingleLine)
+			{
+				generator.WriteNewLine();
+				generator.IndentLine(level);
+				generator.WriteMultilineString(this.Comment_, level);
+				generator.WriteNewLine();
+				generator.IndentLine(level);
+			}
+			else
+			{
+				generator.OutputStream.Write(" " + Comment_ + " ");
+			}
+
+			generator.OutputStream.Write(CommentEnd);
+			generator.WriteNewLine();
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/EmptyLine.cs

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class EmptyLine : CodeElement
+	{
+		public static readonly EmptyLine SingleLine = new EmptyLine();
+		public static readonly EmptyLine TwoLines = new EmptyLine(2);
+		public static readonly EmptyLine ThreeLines = new EmptyLine(3);
+
+		public uint Count { get; set; }
+
+		public EmptyLine()
+		{
+			this.Count = 1;
+		}
+
+		public EmptyLine(uint count)
+		{
+			this.Count = count;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			uint c = this.Count;
+
+			while (c > 0)
+			{
+				generator.WriteNewLine();
+				c--;
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/Function.cs

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+
+namespace CCodeGeneration
+{
+	public class Function: CodeContainerBase
+	{
+		public string Name { get; set; }
+		public bool IsStatic { get; set; }
+
+		private readonly List<VariableType> parameter = new List<VariableType>();
+		private VariableType returnType = VariableType.Void;
+
+		public Function()
+		{
+		}
+
+		public Function(string name, bool isStatic = false)
+		{
+			this.Name = name;
+			this.IsStatic = isStatic;
+		}
+
+		public List<VariableType> Parameter
+		{
+			get { return this.parameter; }
+		}
+
+		public VariableType ReturnType
+		{
+			get { return this.returnType; }
+			set
+			{
+				if (value == null)
+				{
+					throw new ArgumentNullException("ReturnValue");
+				}
+				this.returnType = value;
+			}
+		}
+
+		public static Function FromDeclaration(FunctionDeclaration decl)
+		{
+			Function result = new Function(decl.Name, decl.IsStatic);
+			result.ReturnType = decl.ReturnType.Clone() as VariableType;
+
+			foreach (VariableType param in decl.Parameter)
+			{
+				result.parameter.Add(param.Clone() as VariableType);
+			}
+
+			return result;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			generator.IndentLine(level);
+
+			if (this.IsStatic)
+			{
+				generator.OutputStream.Write("static ");
+			}
+
+			this.returnType.GenerateCode(generator);
+			generator.OutputStream.Write(" " + this.Name + "(");
+
+			if (this.Parameter.Count > 0)
+			{
+				for (int i = 0; i < this.parameter.Count; i++)
+				{
+					this.parameter[i].GenerateCode(generator);
+
+					if (i < (this.parameter.Count - 1))
+					{
+						generator.OutputStream.Write(", ");
+					}
+				}
+			}
+			else
+			{
+				generator.OutputStream.Write("void");
+			}
+
+			generator.OutputStream.Write(")");
+			generator.WriteNewLine();
+			generator.IndentLine(level);
+			generator.OutputStream.Write("{");
+			generator.WriteNewLine();
+
+			base.GenerateCode(level, generator);
+
+			generator.IndentLine(level);
+			generator.OutputStream.Write("}");
+			generator.WriteNewLine();
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/FunctionDeclaration.cs

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+
+namespace CCodeGeneration
+{
+	public class FunctionDeclaration: CodeElement
+	{
+		public string Name { get; set; }
+		public bool IsStatic { get; set; }
+		public bool IsExtern { get; set; }
+
+		private readonly List<VariableType> parameter = new List<VariableType>();
+		private VariableType returnType = VariableType.Void;
+
+		public FunctionDeclaration()
+		{
+		}
+
+		public FunctionDeclaration(string name, bool isStatic = false, bool isExtern = false)
+		{
+			this.Name = name;
+			this.IsStatic = isStatic;
+			this.IsExtern = isExtern;
+		}
+
+		public List<VariableType> Parameter
+		{
+			get { return this.parameter; }
+		}
+
+		public VariableType ReturnType
+		{
+			get { return this.returnType; }
+			set
+			{
+				if (value == null)
+				{
+					throw new ArgumentNullException("ReturnValue");
+				}
+				this.returnType = value;
+			}
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			generator.IndentLine(level);
+
+			if (this.IsExtern)
+			{
+				generator.OutputStream.Write("extern ");
+			}
+
+			if (this.IsStatic)
+			{
+				generator.OutputStream.Write("static ");
+			}
+
+			this.returnType.GenerateCode(generator);
+			generator.OutputStream.Write(" " + this.Name + "(");
+
+			if (this.Parameter.Count > 0)
+			{
+				for (int i = 0; i < this.parameter.Count; i++)
+				{
+					this.parameter[i].GenerateCode(generator);
+
+					if (i < (this.parameter.Count - 1))
+					{
+						generator.OutputStream.Write(", ");
+					}
+				}
+			}
+			else
+			{
+				generator.OutputStream.Write("void");
+			}
+
+			generator.OutputStream.Write(");");
+			generator.WriteNewLine();
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/IfThenElse.cs

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+
+namespace CCodeGeneration
+{
+	public class ElseIf : CodeContainerBase
+	{
+		public string Condition { get; set; }
+
+		public ElseIf()
+		{
+		}
+
+		public ElseIf(string condition)
+		{
+			this.Condition = condition;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.Condition))
+			{
+				generator.IndentLine(level);
+				generator.OutputStream.Write(String.Format("else if ({0})", this.Condition));
+				generator.WriteNewLine();
+				generator.IndentLine(level);
+				generator.OutputStream.Write("{");
+				generator.WriteNewLine();
+
+				base.GenerateCode(level, generator);
+
+				generator.IndentLine(level);
+				generator.OutputStream.Write("}");
+				generator.WriteNewLine();
+			}
+		}
+	}
+
+	public class IfThenElse: CodeContainerBase
+	{
+		public string Condition { get; set; }
+
+		private List<ElseIf> elseIf = new List<ElseIf>();
+		private CodeContainerBase else_ = new CodeContainerBase();
+
+		public IfThenElse()
+		{
+		}
+
+		public IfThenElse(string condition)
+		{
+			this.Condition = condition;
+		}
+
+		public List<ElseIf> ElseIf
+		{
+			get { return this.elseIf; }
+		}
+
+		public CodeContainerBase Else
+		{
+			get { return this.else_; }
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.Condition))
+			{
+				generator.IndentLine(level);
+				generator.OutputStream.Write(String.Format("if ({0})", this.Condition));
+				generator.WriteNewLine();
+				generator.IndentLine(level);
+				generator.OutputStream.Write("{");
+				generator.WriteNewLine();
+
+				base.GenerateCode(level, generator);
+
+				generator.IndentLine(level);
+				generator.OutputStream.Write("}");
+				generator.WriteNewLine();
+
+				foreach (ElseIf elif in this.elseIf)
+				{
+					elif.GenerateCode(level, generator);
+				}
+
+				if (this.else_.InnerElements.Count > 0)
+				{
+					generator.IndentLine(level);
+					generator.OutputStream.Write("else");
+					generator.WriteNewLine();
+					generator.IndentLine(level);
+					generator.OutputStream.Write("{");
+					generator.WriteNewLine();
+
+					this.else_.GenerateCode(level, generator);
+
+					generator.IndentLine(level);
+					generator.OutputStream.Write("}");
+					generator.WriteNewLine();
+				}
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/PP_If.cs

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace CCodeGeneration
+{
+	public class PP_If: CodeContainerBase
+	{
+		public string Condition { get; set; }
+
+		public PP_If()
+		{
+			base.IncreaseLevel = false;
+		}
+
+		public PP_If(string condition)
+			: this()
+		{
+			this.Condition = condition;
+		}
+
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.Condition))
+			{
+				generator.OutputStream.Write("#if " + this.Condition);
+				generator.WriteNewLine();
+
+				base.GenerateCode(level, generator);
+
+				generator.OutputStream.Write("#endif /* " + this.Condition + " */");
+				generator.WriteNewLine();
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/PP_Ifdef.cs

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace CCodeGeneration
+{
+	public class PP_Ifdef: CodeContainerBase
+	{
+		public string Macro { get; set; }
+		public bool Inverted { get; set; }
+
+		public PP_Ifdef()
+		{
+			base.IncreaseLevel = false;
+		}
+
+		public PP_Ifdef(string macro, bool inverted = false)
+			: this()
+		{
+			this.Macro = macro;
+			this.Inverted = inverted;
+		}
+
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.Macro))
+			{
+				if (this.Inverted)
+				{
+					generator.OutputStream.Write("#ifndef " + this.Macro);
+				}
+				else
+				{
+					generator.OutputStream.Write("#ifdef " + this.Macro);
+				}
+				generator.WriteNewLine();
+
+				base.GenerateCode(level, generator);
+
+				generator.OutputStream.Write("#endif /* " + this.Macro + " */");
+				generator.WriteNewLine();
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/PP_Include.cs

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace CCodeGeneration
+{
+	public class PP_Include : CodeElement
+	{
+		public string File { get; set; }
+		public bool IsLocal { get; set; }
+
+		public PP_Include()
+		{
+			this.IsLocal = true;				 
+		}
+
+		public PP_Include(string file, bool isLocal = true)
+		{
+			this.File = file;
+			this.IsLocal = isLocal;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.File))
+			{
+				// includes are never indented
+				if (this.IsLocal)
+				{
+					generator.OutputStream.Write("#include \"" + this.File + "\"");
+				}
+				else
+				{
+					generator.OutputStream.Write("#include <" + this.File + ">");
+				}
+
+				generator.WriteNewLine();			
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/PP_Macro.cs

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class PP_Macro: CodeElement
+	{
+		public string Name { get; set; }
+		public string Value { get; set; }
+
+		public PP_Macro()
+		{
+		}
+
+		public PP_Macro(string name, string value)
+		{
+			this.Name  = name;
+			this.Value = value;
+		}
+
+		
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			// macros are not indented at all
+			generator.OutputStream.Write("#define " + this.Name + " ");
+			generator.WriteMultilineString(this.Value);
+			generator.WriteNewLine();
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/PlainText.cs

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class PlainText : CodeElement
+	{
+		public string Value { get; set; }
+
+		public PlainText(string value)
+		{
+			this.Value = value;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			generator.WriteMultilineString(this.Value);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden 
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die mit einer Assembly verknüpft sind.
+[assembly: AssemblyTitle("CCodeGeneration")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("CCodeGeneration")]
+[assembly: AssemblyCopyright("Copyright ©  2015")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar 
+// für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von 
+// COM zugreifen müssen, legen Sie das ComVisible-Attribut für diesen Typ auf "true" fest.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("8f07a0fa-86f4-48a0-97c7-f94fc5c3f103")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion 
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder die standardmäßigen Build- und Revisionsnummern 
+// übernehmen, indem Sie "*" eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

src/apps/snmp/LwipMibCompiler/CCodeGeneration/Switch.cs

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+
+namespace CCodeGeneration
+{
+	public class SwitchCase : CodeContainerBase
+	{
+		public string Value { get; set; }
+
+		public SwitchCase()
+		{
+		}
+
+		public SwitchCase(string value)
+		{
+			this.Value = value;
+		}
+
+		public bool IsDefault
+		{
+			get { return (this.Value.ToLowerInvariant() == "default"); }
+		}
+
+		public static SwitchCase GenerateDefault()
+		{
+			return new SwitchCase("default");
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.Value))
+			{
+				generator.IndentLine(level);
+				if (this.IsDefault)
+				{
+					generator.OutputStream.Write("default:");
+				}
+				else
+				{
+					generator.OutputStream.Write(String.Format("case {0}:", this.Value));
+				}
+				generator.WriteNewLine();
+				generator.IndentLine(level + 1);
+				generator.OutputStream.Write("{");
+				generator.WriteNewLine();
+
+				base.GenerateCode(level + 1, generator);
+
+				generator.IndentLine(level + 1);
+				generator.OutputStream.Write("}");
+				generator.WriteNewLine();
+
+				generator.IndentLine(level + 1);
+				generator.OutputStream.Write("break;");
+				generator.WriteNewLine();
+			}
+		}
+	}
+
+	public class Switch: CodeElement
+	{
+		public string SwitchVar { get; set; }
+
+		private List<SwitchCase> switches = new List<SwitchCase>();
+
+		public Switch()
+		{
+		}
+
+		public Switch(string switchVar)
+		{
+			this.SwitchVar = switchVar;
+		}
+
+		public List<SwitchCase> Switches
+		{
+			get { return this.switches; }
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.SwitchVar))
+			{
+				generator.IndentLine(level);
+				generator.OutputStream.Write(String.Format("switch ({0})", this.SwitchVar));
+				generator.WriteNewLine();
+				generator.IndentLine(level);
+				generator.OutputStream.Write("{");
+				generator.WriteNewLine();
+
+				SwitchCase defaultCase = null; // generate 'default' always as last case
+				foreach (SwitchCase switchCase in this.switches)
+				{
+					if (switchCase.IsDefault)
+					{
+						defaultCase = switchCase;
+					}
+					else
+					{
+						switchCase.GenerateCode(level + 1, generator);
+					}
+				}
+				if (defaultCase != null)
+				{
+					defaultCase.GenerateCode(level + 1, generator);
+				}
+
+				generator.IndentLine(level);
+				generator.OutputStream.Write("}");
+				generator.WriteNewLine();
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/VariableDeclaration.cs

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace CCodeGeneration
+{
+	public class VariableDeclaration : CodeElement
+	{
+		public VariableType Type { get; set; }
+		public string InitialValue { get; set; }
+		public bool IsStatic { get; set; }
+
+		public VariableDeclaration()
+			: base()
+		{
+		}
+
+		public VariableDeclaration(VariableType type, string initialValue = null, bool isStatic = false) :
+			base()
+		{
+			this.Type         = type;
+			this.InitialValue = initialValue;
+			this.IsStatic     = isStatic;
+		}
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (this.Type != null)
+			{
+				generator.IndentLine(level);
+
+				if (this.IsStatic)
+				{
+					generator.OutputStream.Write("static ");
+				}
+
+				// declare the variable
+				this.Type.GenerateCode(generator);
+
+				if (!String.IsNullOrWhiteSpace(this.InitialValue))
+				{
+					// add initialization value
+					generator.OutputStream.Write(" = ");
+					generator.WriteMultilineString(this.InitialValue, level);
+				}
+
+				generator.OutputStream.Write(";");
+				generator.WriteNewLine();
+			}
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/VariablePrototype.cs

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+namespace CCodeGeneration
+{
+	public class VariablePrototype : CodeElement
+	{
+		public VariableType Type { get; set; }
+
+		public VariablePrototype()
+			: base()
+		{
+		}
+
+		public VariablePrototype(VariableType type) :
+			base()
+		{
+			Type = type;
+		}
+
+		public static VariablePrototype FromVariableDeclaration(VariableDeclaration declaration)
+		{
+			return new VariablePrototype(declaration.Type);
+		}
+
+
+		public override void GenerateCode(int level, CGenerator generator)
+		{
+			if (this.Type != null)
+			{
+				generator.IndentLine(level);
+
+				generator.OutputStream.Write("extern ");
+
+				// declare the variable
+				this.Type.GenerateCode(generator);
+
+				generator.OutputStream.Write(";");
+				generator.WriteNewLine();
+			}
+		}
+
+	}
+}

src/apps/snmp/LwipMibCompiler/CCodeGeneration/VariableType.cs

@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+
+namespace CCodeGeneration
+{
+	public enum ConstType
+	{
+		None,
+		Value,
+		Indirection,
+		Both
+	}
+
+	public class VariableType : ICloneable
+	{
+		public const string VoidString = "void";
+		public static readonly VariableType Void = new VariableType(null, "void");
+
+		public string Name { get; set; }
+		public string Type { get; set; }
+		public string Indirection { get; set; }
+		public ConstType Const { get; set; }
+		public string ArraySpecifier { get; set; }
+
+		public VariableType()
+		{
+		}
+
+		public VariableType(string name, string type, string indirection = null, ConstType const_ = ConstType.None, string arraySpecifier = null)
+		{
+			this.Name           = name;
+			this.Type           = type;
+			this.Indirection    = indirection;
+			this.Const          = const_;
+			this.ArraySpecifier = arraySpecifier;
+		}
+
+		public void GenerateCode(CGenerator generator)
+		{
+			if (!String.IsNullOrWhiteSpace(this.Type))
+			{
+				generator.OutputStream.Write(this.ToString().Trim());
+			}
+		}
+
+		public override string ToString()
+		{
+			if (!String.IsNullOrWhiteSpace(this.Type))
+			{
+				StringBuilder vt = new StringBuilder();
+
+				if ((this.Const == ConstType.Value) || (this.Const == ConstType.Both))
+				{
+					vt.Append("const ");
+				}
+
+				vt.Append(this.Type);
+				vt.Append(" ");
+
+				if (!String.IsNullOrWhiteSpace(this.Indirection))
+				{
+					vt.Append(this.Indirection);
+				}
+
+				if ((this.Const == ConstType.Indirection) || (this.Const == ConstType.Both))
+				{
+					vt.Append("const ");
+				}
+
+				if (!String.IsNullOrWhiteSpace(this.Name))
+				{
+					vt.Append(this.Name);
+				}
+
+				if (this.ArraySpecifier != null)
+				{
+					vt.Append("[");
+					vt.Append(this.ArraySpecifier);
+					vt.Append("]");
+				}
+
+				return vt.ToString().Trim();
+			}
+
+			return base.ToString();
+		}
+
+		#region ICloneable Member
+
+		public object Clone()
+		{
+			// we only have value types as members -> simply use .net base function
+			return this.MemberwiseClone();
+		}
+
+		#endregion
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipMibCompiler.sln

@@ -0,0 +1,47 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LwipMibCompiler", "LwipMibCompiler\LwipMibCompiler.csproj", "{C25D5640-D999-49BD-82E0-A1975296A91E}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LwipSnmpCodeGeneration", "LwipSnmpCodeGeneration\LwipSnmpCodeGeneration.csproj", "{AABCAB90-1540-45D4-A159-14831A54E9A3}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CCodeGeneration", "CCodeGeneration\CCodeGeneration.csproj", "{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharpSnmpLib.Mib", "SharpSnmpLib\SharpSnmpLib.Mib.csproj", "{CBE20411-5DB7-487D-825D-7694267BB6F5}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LwipMibViewer", "LwipMibViewer\LwipMibViewer.csproj", "{86CC0B65-7985-4017-A252-0A7A18DCAEF3}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{86CC0B65-7985-4017-A252-0A7A18DCAEF3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{86CC0B65-7985-4017-A252-0A7A18DCAEF3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{86CC0B65-7985-4017-A252-0A7A18DCAEF3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{86CC0B65-7985-4017-A252-0A7A18DCAEF3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AABCAB90-1540-45D4-A159-14831A54E9A3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AABCAB90-1540-45D4-A159-14831A54E9A3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AABCAB90-1540-45D4-A159-14831A54E9A3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AABCAB90-1540-45D4-A159-14831A54E9A3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C25D5640-D999-49BD-82E0-A1975296A91E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C25D5640-D999-49BD-82E0-A1975296A91E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C25D5640-D999-49BD-82E0-A1975296A91E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C25D5640-D999-49BD-82E0-A1975296A91E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CBE20411-5DB7-487D-825D-7694267BB6F5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CBE20411-5DB7-487D-825D-7694267BB6F5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CBE20411-5DB7-487D-825D-7694267BB6F5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CBE20411-5DB7-487D-825D-7694267BB6F5}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(MonoDevelopProperties) = preSolution
+		StartupItem = LwipMibCompiler\LwipMibCompiler.csproj
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

src/apps/snmp/LwipMibCompiler/LwipMibCompiler/LwipMibCompiler.csproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{C25D5640-D999-49BD-82E0-A1975296A91E}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>LwipMibCompiler</RootNamespace>
+    <AssemblyName>LwipMibCompiler</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisIgnoreBuiltInRuleSets>false</CodeAnalysisIgnoreBuiltInRuleSets>
+    <CodeAnalysisIgnoreBuiltInRules>false</CodeAnalysisIgnoreBuiltInRules>
+    <WarningLevel>4</WarningLevel>
+    <Optimize>false</Optimize>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|AnyCPU'">
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="app.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\CCodeGeneration\CCodeGeneration.csproj">
+      <Project>{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}</Project>
+      <Name>CCodeGeneration</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\LwipSnmpCodeGeneration\LwipSnmpCodeGeneration.csproj">
+      <Project>{AABCAB90-1540-45D4-A159-14831A54E9A3}</Project>
+      <Name>LwipSnmpCodeGeneration</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\SharpSnmpLib\SharpSnmpLib.Mib.csproj">
+      <Project>{CBE20411-5DB7-487D-825D-7694267BB6F5}</Project>
+      <Name>SharpSnmpLib.Mib</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

src/apps/snmp/LwipMibCompiler/LwipMibCompiler/Program.cs

@@ -0,0 +1,480 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Text.RegularExpressions;
+using CCodeGeneration;
+using Lextm.SharpSnmpLib.Mib;
+using Lextm.SharpSnmpLib.Mib.Elements.Entities;
+using Lextm.SharpSnmpLib.Mib.Elements.Types;
+using LwipSnmpCodeGeneration;
+
+namespace LwipMibCompiler
+{
+	class Program
+	{
+		private static readonly Regex _alphaNumericRegex = new Regex("[^a-zA-Z0-9]");
+
+		static void Main(string[] args)
+		{
+			Console.WriteLine("lwIP MIB Compiler");
+			Console.WriteLine("");
+
+			// check args
+			if ((args.Length < 2) || String.IsNullOrWhiteSpace(args[0]) || String.IsNullOrWhiteSpace(args[1]))
+			{
+				PrintUsage();
+				return;
+			}
+
+			string mibFile = args[0];
+			if (!File.Exists(mibFile))
+			{
+				Console.WriteLine(String.Format("Unable to find file '{0}'!", mibFile));
+			}
+
+			string destFile = args[1];
+			string destHeaderFile;
+
+			if (Directory.Exists(destFile))
+			{
+				// only directory passed -> create dest filename from mib filename
+				string mibFileName = Path.GetFileNameWithoutExtension(mibFile).ToLowerInvariant();
+				destFile = Path.Combine(destFile, mibFileName + ".c");
+			}
+			
+			string destFileExt = Path.GetExtension(destFile);
+			if (!String.IsNullOrEmpty(destFileExt))
+			{
+				destHeaderFile = destFile.Substring(0, destFile.Length - destFileExt.Length);
+			}
+			else
+			{
+				destHeaderFile = destFile;
+			}
+			destHeaderFile += ".h";
+
+			for (int i=2; i<args.Length; i++)
+			{
+				if (!String.IsNullOrWhiteSpace(args[i]) && Directory.Exists(args[i]))
+				{
+					MibTypesResolver.RegisterResolver(new FileSystemMibResolver(args[i], true));
+				}
+			}
+
+			
+			// read and resolve MIB
+			Console.WriteLine(" Reading MIB file...");
+			
+			MibDocument md = new MibDocument(mibFile);
+			MibTypesResolver.ResolveTypes(md.Modules[0]);
+			MibTree mt = new MibTree(md.Modules[0] as MibModule);
+
+			if (mt.Root.Count == 0)
+			{
+				Console.WriteLine("No root element found inside MIB!");
+				return;
+			}
+
+			MibCFile generatedFile = new MibCFile();
+			MibHeaderFile generatedHeaderFile = new MibHeaderFile();
+
+			foreach (MibTreeNode mibTreeNode in mt.Root)
+			{
+				// create LWIP object tree from MIB structure
+				Console.WriteLine(" Creating lwIP object tree " + mibTreeNode.Entity.Name);
+
+				SnmpMib snmpMib = new SnmpMib();
+				snmpMib.Oid = mibTreeNode.Entity.Value;
+				snmpMib.BaseOid = MibTypesResolver.ResolveOid(mibTreeNode.Entity).GetOidValues();
+				snmpMib.Name = mibTreeNode.Entity.Name;
+
+				ProcessMibTreeNode(mibTreeNode, snmpMib);
+
+				// let the tree transform itself depending on node structure
+				snmpMib.Analyze();
+
+				if (snmpMib.ChildNodes.Count != 0)
+				{
+					// generate code from LWIP object tree
+					Console.WriteLine(" Generating code " + snmpMib.Name);
+					snmpMib.Generate(generatedFile, generatedHeaderFile);
+				}
+			}
+
+			string preservedCode = MibCFile.GetPreservedCode(destFile);
+			if (!string.IsNullOrEmpty(preservedCode))
+			{
+				generatedFile.PreservedCode.Add(new PlainText(preservedCode));
+			}
+			else
+			{
+				generatedFile.PreservedCode.AddRange(generatedFile.Implementation);
+			}
+			generatedFile.Implementation.Clear();
+
+
+			using (StreamWriter fileWriter = new StreamWriter(destHeaderFile))
+			{
+				CGenerator cGenerator = new CGenerator(fileWriter, destHeaderFile, 3, " ", Environment.NewLine);
+				generatedHeaderFile.Save(cGenerator);
+			}
+			using (StreamWriter fileWriter = new StreamWriter(destFile))
+			{
+				CGenerator cGenerator = new CGenerator(fileWriter, destFile, 3, " ", Environment.NewLine);
+				generatedFile.Save(cGenerator);
+			}
+
+			Console.WriteLine(" Done");
+		}
+
+		private static void PrintUsage()
+		{
+			string codeBase = Assembly.GetExecutingAssembly().CodeBase;
+			string appName = Path.GetFileName(codeBase);
+
+			Console.WriteLine("Usage:");
+			Console.WriteLine(String.Format("  {0} <source MIB file> <dest C file> [<search path 1 for referred MIB's> <search path 2 for referred MIB's> ...]", appName));
+			Console.WriteLine("");
+			Console.WriteLine("    <source MIB file>");
+			Console.WriteLine("      Path and filename of MIB file to convert.");
+			Console.WriteLine("");
+			Console.WriteLine("    <dest C file>");
+			Console.WriteLine("      Destination path and file. If a path is passed only, filename is auto");
+			Console.WriteLine("      generated from MIB file name.");
+			Console.WriteLine("");
+			Console.WriteLine("    <search path X for referred MIB's>");
+			Console.WriteLine("      It's important to provide all referred MIB's in order to correctly ");
+			Console.WriteLine("      resolve all used types.");
+			Console.WriteLine("");
+		}
+
+
+		#region Generation of LWIP Object Tree
+
+		private static void ProcessMibTreeNode(MibTreeNode mibTreeNode, SnmpTreeNode assignedSnmpNode)
+		{
+			foreach (MibTreeNode mtn in mibTreeNode.ChildNodes)
+			{
+				// in theory container nodes may also be scalars or tables at the same time (for now only process real containers)
+				if (mtn.NodeType == MibTreeNodeType.Container)
+				{
+					SnmpTreeNode snmpTreeNode = GenerateSnmpTreeNode(mtn, assignedSnmpNode);
+					assignedSnmpNode.ChildNodes.Add(snmpTreeNode);
+
+					ProcessMibTreeNode(mtn, snmpTreeNode);
+				}
+				else if ((mtn.NodeType & MibTreeNodeType.Scalar) != 0)
+				{
+					SnmpScalarNode snmpScalarNode = GenerateSnmpScalarNode(mtn, assignedSnmpNode);
+					if (snmpScalarNode != null)
+					{
+						assignedSnmpNode.ChildNodes.Add(snmpScalarNode);
+					}
+				}
+				else if ((mtn.NodeType & MibTreeNodeType.Table) != 0)
+				{
+					SnmpTableNode snmpTableNode = GenerateSnmpTableNode(mtn, assignedSnmpNode);
+					if (snmpTableNode != null)
+					{
+						assignedSnmpNode.ChildNodes.Add(snmpTableNode);
+					}
+				}
+			}
+		}
+
+		private static SnmpTreeNode GenerateSnmpTreeNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode)
+		{
+			SnmpTreeNode result = new SnmpTreeNode(parentNode);
+			result.Name    = _alphaNumericRegex.Replace (mibTreeNode.Entity.Name, "");
+			result.Oid     = mibTreeNode.Entity.Value;
+			result.FullOid = MibTypesResolver.ResolveOid(mibTreeNode.Entity).GetOidString();
+
+			return result;
+		}
+
+		private static SnmpScalarNode GenerateSnmpScalarNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode, bool ignoreAccessibleFlag = false)
+		{
+			ObjectType ote = mibTreeNode.Entity as ObjectType;
+			if (ote != null)
+			{
+				return GenerateSnmpScalarNode(ote, parentNode, ignoreAccessibleFlag);
+			}
+
+			return null;
+		}
+
+		private static SnmpScalarNode GenerateSnmpScalarNode(ObjectType ote, SnmpTreeNode parentNode, bool ignoreAccessibleFlag = false)
+		{
+			SnmpScalarNode result;
+
+			ITypeAssignment mibType = ote.BaseType;
+			IntegerType it = (mibType as IntegerType);
+			if (it != null)
+			{
+				if (ote.ReferredType.Name == Symbol.TruthValue.ToString())
+				{
+					result = new SnmpScalarNodeTruthValue(parentNode);
+				}
+				else if ((it.Type == IntegerType.Types.Integer) || (it.Type == IntegerType.Types.Integer32))
+				{
+					result = new SnmpScalarNodeInt(parentNode);
+				}
+				else
+				{
+					Console.WriteLine(String.Format("Unsupported IntegerType '{0}'!", it.Type));
+					return null;
+				}
+				if (it.IsEnumeration)
+				{
+					result.Restrictions.AddRange(CreateRestrictions(it.Enumeration));
+				}
+				else
+				{
+					result.Restrictions.AddRange(CreateRestrictions(it.Ranges));
+				}
+			}
+			else
+			{
+				UnsignedType ut = (mibType as UnsignedType);
+				if (ut != null)
+				{
+					if ((ut.Type == UnsignedType.Types.Unsigned32) ||
+							  (ut.Type == UnsignedType.Types.Gauge32))
+					{
+						result = new SnmpScalarNodeUint(SnmpDataType.Gauge, parentNode);
+					}
+					else if (ut.Type == UnsignedType.Types.Counter32)
+					{
+						result = new SnmpScalarNodeUint(SnmpDataType.Counter, parentNode);
+					}
+					else if (ut.Type == UnsignedType.Types.TimeTicks)
+					{
+						result = new SnmpScalarNodeUint(SnmpDataType.TimeTicks, parentNode);
+					}
+					else if (ut.Type == UnsignedType.Types.Counter64)
+					{
+						result = new SnmpScalarNodeCounter64(parentNode);
+						if ((ut.Ranges != null) && (ut.Ranges.Count > 0))
+						{
+							Console.WriteLine(String.Format("Generation of ranges is not supported for Counter64 type!"));
+							return null;
+						}
+					}
+					else
+					{
+						Console.WriteLine(String.Format("Unsupported UnsignedType '{0}'!", ut.Type));
+						return null;
+					}
+					result.Restrictions.AddRange(CreateRestrictions(ut.Ranges));
+				}
+				else if (mibType is IpAddressType)
+				{
+					result = new SnmpScalarNodeOctetString(SnmpDataType.IpAddress, parentNode);
+					result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
+				}
+				else if (mibType is OpaqueType)
+				{
+					result = new SnmpScalarNodeOctetString(SnmpDataType.Opaque, parentNode);
+					result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
+				}
+				else if (mibType is OctetStringType)
+				{
+					result = new SnmpScalarNodeOctetString(SnmpDataType.OctetString, parentNode);
+					result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
+				}
+				else if (mibType is ObjectIdentifierType)
+				{
+					result = new SnmpScalarNodeObjectIdentifier(parentNode);
+				}
+				else if (mibType is BitsType)
+				{
+					result = new SnmpScalarNodeBits(parentNode, (uint)((mibType as BitsType).Map.GetHighestValue() + 1));
+					result.Restrictions.AddRange(CreateRestrictions(mibType as BitsType));
+				}
+				else
+				{
+					TypeAssignment ta = mibType as TypeAssignment;
+					if (ta != null)
+					{
+						Console.WriteLine(String.Format("Unsupported BaseType: Module='{0}', Name='{1}', Type='{2}'!", ta.Module.Name, ta.Name, ta.Type));
+					}
+					else
+					{
+						Console.WriteLine(String.Format("Unsupported BaseType: Module='{0}', Name='{1}'!", mibType.Module, mibType.Name));
+					}
+					
+					return null;
+				}
+			}
+
+			result.Name = _alphaNumericRegex.Replace(ote.Name, "");
+			result.Oid  = ote.Value;
+
+			if (ote.Access == MaxAccess.readWrite)
+			{
+				result.AccessMode = SnmpAccessMode.ReadWrite;
+			}
+			else if (ote.Access == MaxAccess.readOnly)
+			{
+				result.AccessMode = SnmpAccessMode.ReadOnly;
+			}
+			else if (ote.Access == MaxAccess.readCreate)
+			{
+				result.AccessMode = SnmpAccessMode.ReadOnly;
+			}
+			else if (ignoreAccessibleFlag && (ote.Access == MaxAccess.notAccessible))
+			{
+				result.AccessMode = SnmpAccessMode.NotAccessible;
+			}
+			else
+			{
+				// not accessible or unsupported accress type
+				return null;
+			}
+
+			return result;
+		}
+
+		private static IEnumerable<IRestriction> CreateRestrictions(ValueRanges ranges)
+		{
+			List<IRestriction> result = new List<IRestriction>();
+
+			if (ranges != null)
+			{
+				foreach (ValueRange range in ranges)
+				{
+					if (!range.End.HasValue)
+					{
+						result.Add(new IsEqualRestriction(range.Start));
+					}
+					else
+					{
+						result.Add(new IsInRangeRestriction(range.Start, range.End.Value));
+					}
+				}
+			}
+
+			return result;
+		}
+
+		private static IEnumerable<IRestriction> CreateRestrictions(ValueMap map)
+		{
+			if ((map != null) && (map.Count > 0))
+			{
+				return CreateRestrictions(map.GetContinousRanges());
+			}
+
+			return new List<IRestriction>();
+		}
+
+		private static IEnumerable<IRestriction> CreateRestrictions(BitsType bt)
+		{
+			List<IRestriction> result = new List<IRestriction>();
+
+			if ((bt != null) && (bt.Map != null))
+			{
+				result.Add(new BitMaskRestriction(bt.Map.GetBitMask()));
+			}
+
+			return result;
+		}
+
+		private static SnmpTableNode GenerateSnmpTableNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode)
+		{
+			SnmpTableNode result = new SnmpTableNode(parentNode);
+			result.Name = mibTreeNode.Entity.Name;
+			result.Oid  = mibTreeNode.Entity.Value;
+
+			// expect exactly one row entry
+			if ((mibTreeNode.ChildNodes.Count != 1) || ((mibTreeNode.ChildNodes[0].NodeType & MibTreeNodeType.TableRow) == 0) || (mibTreeNode.ChildNodes[0].Entity.Value != 1))
+			{
+				Console.WriteLine("Found table with unsupported properties! Table needs exactly one (fixed) TableRow with OID=1 ! (" + mibTreeNode.Entity.Name + ")");
+				return null;
+			}
+
+			MibTreeNode rowNode = mibTreeNode.ChildNodes[0];
+			
+			ObjectType rot = rowNode.Entity as ObjectType;
+			if (rot != null)
+			{
+				if (!String.IsNullOrWhiteSpace(rot.Augments))
+				{
+					result.AugmentedTableRow = rot.Augments;
+
+					// the indeces from another table shall be used because this table is only an extension of it
+					rot = MibTypesResolver.ResolveDeclaration(rot.Module, rot.Augments) as ObjectType;
+				}
+
+				if (rot.Indices != null)
+				{
+					foreach (string index in rot.Indices)
+					{
+						ObjectType indexEntity = MibTypesResolver.ResolveDeclaration(rot.Module, index) as ObjectType;
+						if (indexEntity == null)
+						{
+							Console.WriteLine(String.Format("Could not resolve index '{0}' for table '{1}'! Table omitted!", index, result.Name));
+							return null;
+						}
+
+						result.IndexNodes.Add(GenerateSnmpScalarNode(indexEntity, parentNode, ignoreAccessibleFlag: true));
+					}
+				}
+			}
+
+			if (result.IndexNodes.Count == 0)
+			{
+				// a table cannot be used without index
+				Console.WriteLine("Found table without any index column ! (" + mibTreeNode.Entity.Name + ")");
+				return null;
+			}
+
+			// add child nodes
+			foreach (MibTreeNode cellNode in rowNode.ChildNodes)
+			{
+				SnmpScalarNode ssn = GenerateSnmpScalarNode(cellNode, parentNode);
+				if (ssn != null)
+				{
+					result.CellNodes.Add(ssn);
+				}
+			}
+
+			return result;
+		}
+
+		#endregion
+
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipMibCompiler/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden 
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die mit einer Assembly verknüpft sind.
+[assembly: AssemblyTitle("ConsoleApplication28")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("ConsoleApplication28")]
+[assembly: AssemblyCopyright("Copyright ©  2015")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar 
+// für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von 
+// COM zugreifen müssen, legen Sie das ComVisible-Attribut für diesen Typ auf "true" fest.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("0abf7541-6a96-43cd-9e24-462e074b2c96")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion 
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder die standardmäßigen Build- und Revisionsnummern 
+// übernehmen, indem Sie "*" eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

src/apps/snmp/LwipMibCompiler/LwipMibCompiler/app.config

@@ -0,0 +1,3 @@
+<?xml version="1.0"?>
+<configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>

src/apps/snmp/LwipMibCompiler/LwipMibViewer/FormMain.Designer.cs

@@ -0,0 +1,166 @@
+namespace LwipMibViewer
+{
+	partial class FormMain
+	{
+		/// <summary>
+		/// Erforderliche Designervariable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Verwendete Ressourcen bereinigen.
+		/// </summary>
+		/// <param name="disposing">True, wenn verwaltete Ressourcen gelöscht werden sollen; andernfalls False.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Vom Windows Form-Designer generierter Code
+
+		/// <summary>
+		/// Erforderliche Methode für die Designerunterstützung.
+		/// Der Inhalt der Methode darf nicht mit dem Code-Editor geändert werden.
+		/// </summary>
+		private void InitializeComponent()
+		{
+            this.components = new System.ComponentModel.Container();
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FormMain));
+            this.treeMib = new System.Windows.Forms.TreeView();
+            this.imagelistTreeNodeImages = new System.Windows.Forms.ImageList(this.components);
+            this.splitContainerMain = new System.Windows.Forms.SplitContainer();
+            this.listviewNodeDetails = new System.Windows.Forms.ListView();
+            this.columnHeader1 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.columnHeader2 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.toolStripMain = new System.Windows.Forms.ToolStrip();
+            this.toolbuttonOpenMib = new System.Windows.Forms.ToolStripButton();
+            this.dialogOpenMib = new System.Windows.Forms.OpenFileDialog();
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainerMain)).BeginInit();
+            this.splitContainerMain.Panel1.SuspendLayout();
+            this.splitContainerMain.Panel2.SuspendLayout();
+            this.splitContainerMain.SuspendLayout();
+            this.toolStripMain.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // treeMib
+            // 
+            this.treeMib.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.treeMib.ImageIndex = 0;
+            this.treeMib.ImageList = this.imagelistTreeNodeImages;
+            this.treeMib.Location = new System.Drawing.Point(0, 0);
+            this.treeMib.Name = "treeMib";
+            this.treeMib.SelectedImageIndex = 0;
+            this.treeMib.Size = new System.Drawing.Size(1028, 418);
+            this.treeMib.TabIndex = 0;
+            this.treeMib.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.treeMib_AfterSelect);
+            // 
+            // imagelistTreeNodeImages
+            // 
+            this.imagelistTreeNodeImages.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imagelistTreeNodeImages.ImageStream")));
+            this.imagelistTreeNodeImages.TransparentColor = System.Drawing.Color.Transparent;
+            this.imagelistTreeNodeImages.Images.SetKeyName(0, "ntimgContainer");
+            this.imagelistTreeNodeImages.Images.SetKeyName(1, "ntimgTable");
+            this.imagelistTreeNodeImages.Images.SetKeyName(2, "ntimgRow");
+            this.imagelistTreeNodeImages.Images.SetKeyName(3, "ntimgColumn");
+            this.imagelistTreeNodeImages.Images.SetKeyName(4, "ntimgScalar");
+            this.imagelistTreeNodeImages.Images.SetKeyName(5, "ntimgUnknown");
+            // 
+            // splitContainerMain
+            // 
+            this.splitContainerMain.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.splitContainerMain.Location = new System.Drawing.Point(0, 25);
+            this.splitContainerMain.Name = "splitContainerMain";
+            this.splitContainerMain.Orientation = System.Windows.Forms.Orientation.Horizontal;
+            // 
+            // splitContainerMain.Panel1
+            // 
+            this.splitContainerMain.Panel1.Controls.Add(this.treeMib);
+            // 
+            // splitContainerMain.Panel2
+            // 
+            this.splitContainerMain.Panel2.Controls.Add(this.listviewNodeDetails);
+            this.splitContainerMain.Size = new System.Drawing.Size(1028, 625);
+            this.splitContainerMain.SplitterDistance = 418;
+            this.splitContainerMain.TabIndex = 1;
+            // 
+            // listviewNodeDetails
+            // 
+            this.listviewNodeDetails.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
+            this.columnHeader1,
+            this.columnHeader2});
+            this.listviewNodeDetails.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.listviewNodeDetails.FullRowSelect = true;
+            this.listviewNodeDetails.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.None;
+            this.listviewNodeDetails.Location = new System.Drawing.Point(0, 0);
+            this.listviewNodeDetails.Name = "listviewNodeDetails";
+            this.listviewNodeDetails.Size = new System.Drawing.Size(1028, 203);
+            this.listviewNodeDetails.TabIndex = 0;
+            this.listviewNodeDetails.UseCompatibleStateImageBehavior = false;
+            this.listviewNodeDetails.View = System.Windows.Forms.View.Details;
+            // 
+            // columnHeader1
+            // 
+            this.columnHeader1.Text = "";
+            this.columnHeader1.Width = 150;
+            // 
+            // columnHeader2
+            // 
+            this.columnHeader2.Text = "";
+            this.columnHeader2.Width = 777;
+            // 
+            // toolStripMain
+            // 
+            this.toolStripMain.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.toolbuttonOpenMib});
+            this.toolStripMain.Location = new System.Drawing.Point(0, 0);
+            this.toolStripMain.Name = "toolStripMain";
+            this.toolStripMain.Size = new System.Drawing.Size(1028, 25);
+            this.toolStripMain.TabIndex = 2;
+            // 
+            // toolbuttonOpenMib
+            // 
+            this.toolbuttonOpenMib.Image = ((System.Drawing.Image)(resources.GetObject("toolbuttonOpenMib.Image")));
+            this.toolbuttonOpenMib.Name = "toolbuttonOpenMib";
+            this.toolbuttonOpenMib.Size = new System.Drawing.Size(65, 22);
+            this.toolbuttonOpenMib.Text = "Open...";
+            this.toolbuttonOpenMib.Click += new System.EventHandler(this.toolbuttonOpenMib_Click);
+            // 
+            // FormMain
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(1028, 650);
+            this.Controls.Add(this.splitContainerMain);
+            this.Controls.Add(this.toolStripMain);
+            this.Name = "FormMain";
+            this.Text = "MIB Viewer";
+            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
+            this.splitContainerMain.Panel1.ResumeLayout(false);
+            this.splitContainerMain.Panel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainerMain)).EndInit();
+            this.splitContainerMain.ResumeLayout(false);
+            this.toolStripMain.ResumeLayout(false);
+            this.toolStripMain.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private System.Windows.Forms.TreeView treeMib;
+        private System.Windows.Forms.SplitContainer splitContainerMain;
+        private System.Windows.Forms.ListView listviewNodeDetails;
+        private System.Windows.Forms.ColumnHeader columnHeader1;
+        private System.Windows.Forms.ColumnHeader columnHeader2;
+        private System.Windows.Forms.ImageList imagelistTreeNodeImages;
+        private System.Windows.Forms.ToolStrip toolStripMain;
+        private System.Windows.Forms.ToolStripButton toolbuttonOpenMib;
+        private System.Windows.Forms.OpenFileDialog dialogOpenMib;
+	}
+}
+

src/apps/snmp/LwipMibCompiler/LwipMibViewer/FormMain.cs

@@ -0,0 +1,217 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System.Windows.Forms;
+using Lextm.SharpSnmpLib.Mib;
+using Lextm.SharpSnmpLib.Mib.Elements;
+using Lextm.SharpSnmpLib.Mib.Elements.Types;
+using Lextm.SharpSnmpLib.Mib.Elements.Entities;
+using System.IO;
+
+namespace LwipMibViewer
+{
+	public partial class FormMain : Form
+	{
+		readonly ListViewGroup listviewgroupAbstract;
+		readonly ListViewGroup listviewgroupElement;
+		readonly ListViewGroup listviewgroupBaseType;
+		readonly ListViewGroup listviewgroupTypeChain;
+
+		public FormMain()
+		{
+			this.Font = SystemInformation.MenuFont;
+			InitializeComponent();
+
+			this.listviewgroupAbstract = new ListViewGroup("Abstract", System.Windows.Forms.HorizontalAlignment.Left);
+			this.listviewgroupElement = new ListViewGroup("Element Properties", System.Windows.Forms.HorizontalAlignment.Left);
+			this.listviewgroupBaseType = new ListViewGroup("Element Base Type", System.Windows.Forms.HorizontalAlignment.Left);
+			this.listviewgroupTypeChain = new ListViewGroup("Element Type Chain", System.Windows.Forms.HorizontalAlignment.Left);
+			this.listviewNodeDetails.Groups.AddRange(new System.Windows.Forms.ListViewGroup[] {
+					 listviewgroupAbstract,
+					 listviewgroupElement,
+					 listviewgroupBaseType,
+					 listviewgroupTypeChain});
+
+			try
+			{
+				DirectoryInfo dirInfo = new DirectoryInfo(Path.GetDirectoryName(Application.ExecutablePath));
+				if (dirInfo != null)
+				{
+					dirInfo = dirInfo.Parent;
+					if (dirInfo != null)
+					{
+						dirInfo = dirInfo.Parent;
+						if (dirInfo != null)
+						{
+							dirInfo = new DirectoryInfo(Path.Combine(dirInfo.FullName, "Mibs"));
+							if (dirInfo.Exists)
+							{
+								MibTypesResolver.RegisterResolver(new FileSystemMibResolver(dirInfo.FullName, true));
+							}
+						}
+					}
+				}
+			}
+			catch
+			{ }
+		}
+
+		#region GUI Event Handler
+
+		private void toolbuttonOpenMib_Click(object sender, System.EventArgs e)
+		{
+			if (this.dialogOpenMib.ShowDialog() == DialogResult.OK)
+			{
+				OpenMib(this.dialogOpenMib.FileName);
+			}
+		}
+
+		private void treeMib_AfterSelect(object sender, TreeViewEventArgs e)
+		{
+			listviewNodeDetails.Items.Clear();
+
+			if (e.Node != null)
+			{
+				MibTreeNode mtn = e.Node.Tag as MibTreeNode;
+				if (mtn != null)
+				{
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Abstract", mtn.NodeType.ToString() }, this.listviewgroupAbstract));
+
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Module", (mtn.Entity.Module != null) ? mtn.Entity.Module.Name : "" }, this.listviewgroupElement));
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Type", mtn.Entity.GetType().Name }, this.listviewgroupElement));
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Name", mtn.Entity.Name }, this.listviewgroupElement));
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Description", mtn.Entity.Description }, this.listviewgroupElement));
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "OID", mtn.Entity.Value.ToString() }, this.listviewgroupElement));
+					listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Full OID", MibTypesResolver.ResolveOid(mtn.Entity).GetOidString() }, this.listviewgroupElement));
+					if (mtn.Entity is ObjectType)
+					{
+						listviewNodeDetails.Items.Add(new ListViewItem(new string[] { "Access", (mtn.Entity as ObjectType).Access.ToString() }, this.listviewgroupElement));
+					}
+
+					ITypeReferrer tr = mtn.Entity as ITypeReferrer;
+					if (tr != null)
+					{
+						ShowTypeDetails(listviewNodeDetails, this.listviewgroupBaseType, tr.BaseType);
+						ShowTypeChain(listviewNodeDetails, tr.ReferredType);
+					}
+				}
+			}
+		}
+
+		#endregion
+
+		#region Methods
+
+		private void OpenMib(string file)
+		{
+			try
+			{
+				MibDocument md = new MibDocument(file);
+				MibTypesResolver.ResolveTypes(md.Modules[0]);
+
+				this.treeMib.Nodes.Clear();
+				this.listviewNodeDetails.Items.Clear();
+
+				MibTree mt = new MibTree(md.Modules[0] as MibModule);
+				foreach (MibTreeNode mibTreeNode in mt.Root)
+				{
+					AddNode(mibTreeNode, this.treeMib.Nodes);
+
+					foreach (TreeNode node in this.treeMib.Nodes)
+					{
+						node.Expand();
+					}
+				}
+			}
+			catch
+			{
+			}
+		}
+
+		private void AddNode(MibTreeNode mibNode, TreeNodeCollection parentNodes)
+		{
+			int imgIndex = 5; //unknown
+			if ((mibNode.NodeType & MibTreeNodeType.Table) != 0)
+			{
+				imgIndex = 1;
+			}
+			else if ((mibNode.NodeType & MibTreeNodeType.TableRow) != 0)
+			{
+				imgIndex = 2;
+			}
+			else if ((mibNode.NodeType & MibTreeNodeType.TableCell) != 0)
+			{
+				imgIndex = 3;
+			}
+			else if ((mibNode.NodeType & MibTreeNodeType.Scalar) != 0)
+			{
+				imgIndex = 4;
+			}
+			else if ((mibNode.NodeType & MibTreeNodeType.Container) != 0)
+			{
+				imgIndex = 0;
+			}
+
+			TreeNode newNode = new TreeNode(mibNode.Entity.Name, imgIndex, imgIndex);
+			newNode.Tag = mibNode;
+
+			parentNodes.Add(newNode);
+
+			foreach (MibTreeNode child in mibNode.ChildNodes)
+			{
+				AddNode(child, newNode.Nodes);
+			}
+		}
+
+		private void ShowTypeChain(ListView lv, ITypeAssignment type)
+		{
+			ShowTypeDetails(lv, this.listviewgroupTypeChain, type);
+
+			ITypeReferrer tr = type as ITypeReferrer;
+			if ((tr != null) && (tr.ReferredType != null))
+			{
+				lv.Items.Add(new ListViewItem(new string[] { " >>>", "" }, this.listviewgroupTypeChain));
+				ShowTypeChain(listviewNodeDetails, tr.ReferredType);
+			}
+		}
+
+		private void ShowTypeDetails(ListView lv, ListViewGroup lvg, ITypeAssignment type)
+		{
+			lv.Items.Add(new ListViewItem(new string[] { "Module", (type.Module != null) ? type.Module.Name : "" }, lvg));
+			lv.Items.Add(new ListViewItem(new string[] { "Type", type.GetType().Name }, lvg));
+			lv.Items.Add(new ListViewItem(new string[] { "Name", type.Name }, lvg));
+		}
+
+		#endregion
+
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipMibViewer/FormMain.resx

@@ -0,0 +1,298 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="imagelistTreeNodeImages.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+  <data name="imagelistTreeNodeImages.ImageStream" mimetype="application/x-microsoft.net.object.binary.base64">
+    <value>
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+</root>

src/apps/snmp/LwipMibCompiler/LwipMibViewer/LwipMibViewer.csproj

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{86CC0B65-7985-4017-A252-0A7A18DCAEF3}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>LwipMibViewer</RootNamespace>
+    <AssemblyName>LwipMibViewer</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisIgnoreBuiltInRuleSets>true</CodeAnalysisIgnoreBuiltInRuleSets>
+    <CodeAnalysisIgnoreBuiltInRules>true</CodeAnalysisIgnoreBuiltInRules>
+    <WarningLevel>4</WarningLevel>
+    <Optimize>false</Optimize>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|AnyCPU'">
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisIgnoreBuiltInRuleSets>true</CodeAnalysisIgnoreBuiltInRuleSets>
+    <CodeAnalysisIgnoreBuiltInRules>true</CodeAnalysisIgnoreBuiltInRules>
+    <WarningLevel>4</WarningLevel>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="FormMain.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="FormMain.Designer.cs">
+      <DependentUpon>FormMain.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="FormMain.resx">
+      <DependentUpon>FormMain.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+      <DesignTime>True</DesignTime>
+    </Compile>
+    <None Include="app.config" />
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\SharpSnmpLib\SharpSnmpLib.Mib.csproj">
+      <Project>{CBE20411-5DB7-487D-825D-7694267BB6F5}</Project>
+      <Name>SharpSnmpLib.Mib</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

src/apps/snmp/LwipMibCompiler/LwipMibViewer/Program.cs

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Windows.Forms;
+
+namespace LwipMibViewer
+{
+	static class Program
+	{
+		/// <summary>
+		/// Der Haupteinstiegspunkt für die Anwendung.
+		/// </summary>
+		[STAThread]
+		static void Main()
+		{
+			Application.EnableVisualStyles();
+			Application.SetCompatibleTextRenderingDefault(false);
+			Application.Run(new FormMain());
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipMibViewer/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden 
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die mit einer Assembly verknüpft sind.
+[assembly: AssemblyTitle("LwipMibViewer")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("LwipMibViewer")]
+[assembly: AssemblyCopyright("Copyright ©  2015")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar 
+// für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von 
+// COM zugreifen müssen, legen Sie das ComVisible-Attribut für diesen Typ auf "true" fest.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("7ffbd1c1-1c64-45bb-b243-2400446c649d")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion 
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder die standardmäßigen Build- und Revisionsnummern 
+// übernehmen, indem Sie "*" eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

src/apps/snmp/LwipMibCompiler/LwipMibViewer/Properties/Resources.Designer.cs

@@ -0,0 +1,63 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Dieser Code wurde von einem Tool generiert.
+//     Laufzeitversion:4.0.30319.225
+//
+//     Änderungen an dieser Datei können falsches Verhalten verursachen und gehen verloren, wenn
+//     der Code erneut generiert wird.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace LwipMibViewer.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
+    /// </summary>
+    // Diese Klasse wurde von der StronglyTypedResourceBuilder automatisch generiert
+    // -Klasse über ein Tool wie ResGen oder Visual Studio automatisch generiert.
+    // Um einen Member hinzuzufügen oder zu entfernen, bearbeiten Sie die .ResX-Datei und führen dann ResGen
+    // mit der /str-Option erneut aus, oder Sie erstellen Ihr VS-Projekt neu.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Gibt die zwischengespeicherte ResourceManager-Instanz zurück, die von dieser Klasse verwendet wird.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("LwipMibViewer.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Überschreibt die CurrentUICulture-Eigenschaft des aktuellen Threads für alle
+        ///   Ressourcenzuordnungen, die diese stark typisierte Ressourcenklasse verwenden.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+    }
+}

src/apps/snmp/LwipMibCompiler/LwipMibViewer/Properties/Resources.resx

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

src/apps/snmp/LwipMibCompiler/LwipMibViewer/Properties/Settings.Designer.cs

@@ -0,0 +1,26 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Dieser Code wurde von einem Tool generiert.
+//     Laufzeitversion:4.0.30319.225
+//
+//     Änderungen an dieser Datei können falsches Verhalten verursachen und gehen verloren, wenn
+//     der Code erneut generiert wird.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace LwipMibViewer.Properties {
+    
+    
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "10.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
+        
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+        
+        public static Settings Default {
+            get {
+                return defaultInstance;
+            }
+        }
+    }
+}

src/apps/snmp/LwipMibCompiler/LwipMibViewer/Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

src/apps/snmp/LwipMibCompiler/LwipMibViewer/app.config

@@ -0,0 +1,3 @@
+<?xml version="1.0"?>
+<configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/IRestriction.cs

@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace LwipSnmpCodeGeneration
+{
+	public interface IRestriction
+	{
+		string GetCheckCodeValid(string varNameToCheck);
+		string GetCheckCodeInvalid(string varNameToCheck);
+	}
+
+	public class BitMaskRestriction : IRestriction
+	{
+		UInt32 mask;
+
+		public BitMaskRestriction(UInt32 mask)
+		{
+			this.mask = mask;
+		}
+
+		public string GetCheckCodeValid(string varNameToCheck)
+		{
+			return String.Format("(({0} & {1}) == {0})", varNameToCheck, this.mask);
+		}
+
+		public string GetCheckCodeInvalid(string varNameToCheck)
+		{
+			return String.Format("(({0} & {1}) != {0})", varNameToCheck, this.mask);
+		}
+	}
+
+	public class IsEqualRestriction : IRestriction
+	{
+		private Int64 value;
+
+		public IsEqualRestriction(Int64 value)
+		{
+			this.value = value;
+		}
+
+		public long Value
+		{
+			get { return value; }
+		}
+
+		public string GetCheckCodeValid(string varNameToCheck)
+		{
+			return String.Format("({0} == {1})", varNameToCheck, this.value);
+		}
+
+		public string GetCheckCodeInvalid(string varNameToCheck)
+		{
+			return String.Format("({0} != {1})", varNameToCheck, this.value);
+		}
+	}
+
+	public class IsInRangeRestriction : IRestriction
+	{
+		private Int64 rangeStart;
+		private Int64 rangeEnd;
+
+		public IsInRangeRestriction(Int64 rangeStart, Int64 rangeEnd)
+		{
+			this.rangeStart = rangeStart;
+			this.rangeEnd   = rangeEnd;
+		}
+
+		public long RangeStart
+		{
+			get { return this.rangeStart; }
+		}
+
+		public long RangeEnd
+		{
+			get { return this.rangeEnd; }
+		}
+
+		public string GetCheckCodeValid(string varNameToCheck)
+		{
+			return String.Format("(({0} >= {1}) && ({0} <= {2}))", varNameToCheck, this.rangeStart, this.rangeEnd);
+		}
+
+		public string GetCheckCodeInvalid(string varNameToCheck)
+		{
+			return String.Format("(({0} < {1}) || ({0} > {2}))", varNameToCheck, this.rangeStart, this.rangeEnd);
+		}
+	}
+
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/LwipSnmp.cs

@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+
+namespace LwipSnmpCodeGeneration
+{
+	public static class LwipOpts
+	{
+		public static bool GenerateEmptyFolders = false;
+		/// <summary>
+		/// If a tree node only has scalar nodes as child nodes, it is replaced by
+		/// a single scalar array node in order to save memory and have only one single get/test/set method for all scalars.
+		/// </summary>
+		public static bool GenerateScalarArrays = true;
+		/// <summary>
+		/// If a tree node has multiple scalars as subnodes as well as other treenodes it
+		/// defines a single get/test/set method for all scalar child node.
+		/// (without other treenodes as child it would have been converted to scalar array node).
+		/// </summary>
+		public static bool GenerateSingleAccessMethodsForTreeNodeScalars = GenerateScalarArrays;
+	}
+
+	public static class LwipDefs
+	{
+		public const string Null        = "NULL";
+		public const string Vt_U8       = "u8_t";
+		public const string Vt_U16      = "u16_t";
+		public const string Vt_U32      = "u32_t";
+		public const string Vt_S8       = "s8_t";
+		public const string Vt_S16      = "s16_t";
+		public const string Vt_S32      = "s32_t";
+		public const string Vt_Snmp_err = "snmp_err_t";
+
+		public const string Incl_SnmpOpts = "lwip/apps/snmp_opts.h";
+		public const string Opt_SnmpEnabled = "LWIP_SNMP";
+
+		public const string Vt_StMib                = "struct snmp_mib";
+		public const string Vt_StObjectId           = "struct snmp_obj_id";
+		public const string Vt_StNode               = "struct snmp_node";
+		public const string Vt_StNodeInstance       = "struct snmp_node_instance";
+		public const string Vt_StTreeNode           = "struct snmp_tree_node";
+		public const string Vt_StScalarNode         = "struct snmp_scalar_node";
+		public const string Vt_StScalarArrayNode    = "struct snmp_scalar_array_node";
+		public const string Vt_StScalarArrayNodeDef = "struct snmp_scalar_array_node_def";
+		public const string Vt_StTableNode          = "struct snmp_table_node";
+		public const string Vt_StTableColumnDef     = "struct snmp_table_col_def";
+		public const string Vt_StNextOidState       = "struct snmp_next_oid_state";
+
+		public const string Def_NodeAccessReadOnly      = "SNMP_NODE_INSTANCE_READ_ONLY";
+		public const string Def_NodeAccessReadWrite     = "SNMP_NODE_INSTANCE_READ_WRITE";
+		public const string Def_NodeAccessWriteOnly     = "SNMP_NODE_INSTANCE_WRITE_ONLY";
+		public const string Def_NodeAccessNotAccessible = "SNMP_NODE_INSTANCE_NOT_ACCESSIBLE";
+
+		public const string Def_ErrorCode_Ok             = "SNMP_ERR_NOERROR";
+		public const string Def_ErrorCode_WrongValue     = "SNMP_ERR_WRONGVALUE";
+		public const string Def_ErrorCode_NoSuchInstance = "SNMP_ERR_NOSUCHINSTANCE";
+
+		public const string FnctSuffix_GetValue        = "_get_value";
+		public const string FnctSuffix_SetTest         = "_set_test";
+		public const string FnctSuffix_SetValue        = "_set_value";
+		public const string FnctSuffix_GetInstance     = "_get_instance";
+		public const string FnctSuffix_GetNextInstance = "_get_next_instance";
+
+		public const string FnctName_SetTest_Ok         = "snmp_set_test_ok";
+
+		public static string GetLwipDefForSnmpAccessMode(SnmpAccessMode am)
+		{
+			switch (am)
+			{
+				case SnmpAccessMode.ReadOnly: return Def_NodeAccessReadOnly;
+				case SnmpAccessMode.ReadWrite: return Def_NodeAccessReadWrite;
+				case SnmpAccessMode.NotAccessible: return Def_NodeAccessNotAccessible;
+				case SnmpAccessMode.WriteOnly: return Def_NodeAccessWriteOnly;
+				default: throw new NotSupportedException("Unknown SnmpAccessMode!");
+			}
+		}
+
+		public static string GetAsn1DefForSnmpDataType(SnmpDataType dt)
+		{
+			switch (dt)
+			{
+				// primitive
+				case SnmpDataType.Null:
+					return "SNMP_ASN1_TYPE_NULL";
+				case SnmpDataType.Bits:
+				case SnmpDataType.OctetString:
+					return "SNMP_ASN1_TYPE_OCTET_STRING";
+				case SnmpDataType.ObjectIdentifier:
+					return "SNMP_ASN1_TYPE_OBJECT_ID";				
+				case SnmpDataType.Integer:
+					return "SNMP_ASN1_TYPE_INTEGER";
+
+				// application
+				case SnmpDataType.IpAddress:
+					return "SNMP_ASN1_TYPE_IPADDR";
+				case SnmpDataType.Counter:
+					return "SNMP_ASN1_TYPE_COUNTER";
+				case SnmpDataType.Gauge:
+					return "SNMP_ASN1_TYPE_GAUGE";
+				case SnmpDataType.TimeTicks:
+					return "SNMP_ASN1_TYPE_TIMETICKS";
+				case SnmpDataType.Opaque:
+					return "SNMP_ASN1_TYPE_OPAQUE";
+				case SnmpDataType.Counter64:
+					return "SNMP_ASN1_TYPE_COUNTER64";
+				default:
+					throw new NotSupportedException("Unknown SnmpDataType!");
+			}
+		}
+
+		public static string GetLengthForSnmpDataType(SnmpDataType dt)
+		{
+			switch (dt)
+			{
+				case SnmpDataType.Null:
+					return "0";
+
+				case SnmpDataType.Integer:
+				case SnmpDataType.Counter:
+				case SnmpDataType.IpAddress:
+				case SnmpDataType.Gauge:
+				case SnmpDataType.TimeTicks:
+					return "4";
+
+				case SnmpDataType.Counter64:
+					return "8";
+
+				case SnmpDataType.OctetString:
+				case SnmpDataType.ObjectIdentifier:
+				case SnmpDataType.Bits:
+				case SnmpDataType.Opaque:
+					return null;
+
+				default:
+					throw new NotSupportedException("Unknown SnmpDataType!");
+			}
+		}
+	}
+
+	public enum SnmpDataType
+	{
+		Null,
+
+		Integer, // INTEGER, Integer32
+
+		Counter, // Counter, Counter32
+		Gauge,  // Gauge, Gauge32, Unsigned32
+		TimeTicks,
+
+		Counter64,
+
+		OctetString,
+		Opaque,
+		Bits,
+
+		ObjectIdentifier,
+		
+		IpAddress,
+	}
+
+	public enum SnmpAccessMode
+	{
+		ReadOnly,
+		ReadWrite,
+		WriteOnly,
+		NotAccessible
+	}
+
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/LwipSnmpCodeGeneration.csproj

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{AABCAB90-1540-45D4-A159-14831A54E9A3}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>LwipSnmpCodeGeneration</RootNamespace>
+    <AssemblyName>LwipSnmpCodeGeneration</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="IRestriction.cs" />
+    <Compile Include="SnmpScalarNodeCounter64.cs" />
+    <Compile Include="SnmpScalarNodeTruthValue.cs" />
+    <Compile Include="SnmpScalarAggregationNode.cs" />
+    <Compile Include="SnmpTableNode.cs" />
+    <Compile Include="SnmpScalarArrayNode.cs" />
+    <Compile Include="MibHeaderFile.cs" />
+    <Compile Include="SnmpScalarNodeBits.cs" />
+    <Compile Include="SnmpMib.cs" />
+    <Compile Include="SnmpScalarNodeInt.cs" />
+    <Compile Include="SnmpScalarNodeObjectIdentifier.cs" />
+    <Compile Include="SnmpScalarNodeOctetString.cs" />
+    <Compile Include="SnmpScalarNodeUint.cs" />
+    <Compile Include="SnmpTreeNode.cs" />
+    <Compile Include="LwipSnmp.cs" />
+    <Compile Include="MibCFile.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="SnmpNode.cs" />
+    <Compile Include="SnmpScalarNode.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\CCodeGeneration\CCodeGeneration.csproj">
+      <Project>{7DA7C0AB-0982-4BF5-9324-F59A7A08D65B}</Project>
+      <Name>CCodeGeneration</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/MibCFile.cs

@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System.Collections.Generic;
+using CCodeGeneration;
+using System;
+using System.IO;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class MibCFile
+	{
+		#region Fields
+
+		private const string PreservedSectionMarker = "LWIP MIB generator - preserved section begin";
+		private const string PreservedSectionHeader = 
+			"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n" +
+			PreservedSectionMarker + "\n" +
+			"Code below is preserved on regeneration. Remove these comment lines to regenerate code.\n" +
+			"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
+
+		private readonly List<CodeElement> includes = new List<CodeElement>();
+		private readonly List<CodeElement> defines = new List<CodeElement>();
+		private readonly List<CodeElement> declarations = new List<CodeElement>();
+		private readonly List<CodeElement> implementation = new List<CodeElement>();
+		private readonly List<CodeElement> preservedCode = new List<CodeElement>();
+
+		#endregion
+
+		public MibCFile()
+		{
+		}
+
+		#region Accessors
+
+		public List<CodeElement> Includes
+		{
+			get { return this.includes; }
+		}
+
+		public List<CodeElement> Defines
+		{
+			get { return this.defines; }
+		}
+
+		public List<CodeElement> Declarations
+		{
+			get { return this.declarations; }
+		}
+
+		public List<CodeElement> Implementation
+		{
+			get { return this.implementation; }
+		}
+
+		public List<CodeElement> PreservedCode
+		{
+			get { return this.preservedCode; }
+		}
+
+		#endregion
+
+		#region Methods
+
+		public void Save(CGenerator cGenerator)
+		{
+			CFile cFile = new CFile();
+
+			cFile.AddElement(new Comment("Generated by LwipMibCompiler"));
+			cFile.AddElement(EmptyLine.SingleLine);
+
+			cFile.AddElement(new PP_Include(LwipDefs.Incl_SnmpOpts));
+			CodeContainerBase e = cFile.AddElement(new PP_If(LwipDefs.Opt_SnmpEnabled)) as CodeContainerBase;
+			e.AddElement(EmptyLine.SingleLine);
+
+			// include header file
+			string file = cGenerator.FileName;
+			if (!String.IsNullOrWhiteSpace(file))
+			{
+				string ext = System.IO.Path.GetExtension(file);
+
+				string headerFile = !String.IsNullOrEmpty(ext) ? file.Substring(0, file.Length - ext.Length) : file;
+				headerFile += ".h";
+
+				e.AddElement(new PP_Include(headerFile));								
+			}
+
+			// include common snmp files
+			e.AddElement(new PP_Include("lwip/apps/snmp.h"));
+			e.AddElement(new PP_Include("lwip/apps/snmp_core.h"));
+			e.AddElement(new PP_Include("lwip/apps/snmp_scalar.h"));
+			e.AddElement(new PP_Include("lwip/apps/snmp_table.h"));
+
+			if (this.includes.Count > 0)
+			{
+				e.AddElement(EmptyLine.SingleLine);
+				e.AddElements(this.includes);
+			}
+
+			if (this.defines.Count > 0)
+			{
+				e.AddElement(EmptyLine.SingleLine);
+				e.AddElements(this.defines);
+			}
+
+			if (this.declarations.Count > 0)
+			{
+				e.AddElement(EmptyLine.TwoLines);
+				e.AddElements(this.declarations);
+			}
+
+			if (this.implementation.Count > 0)
+			{
+				e.AddElement(EmptyLine.TwoLines);
+				e.AddElements(this.implementation);
+			}
+
+			if (this.preservedCode.Count > 0)
+			{
+				e.AddElement(EmptyLine.TwoLines);
+				e.AddElement(new Comment(PreservedSectionHeader));
+				e.AddElement(EmptyLine.SingleLine);
+				e.AddElements(this.preservedCode);
+			}
+
+			cFile.Save(cGenerator);
+		}
+
+		public static string GetPreservedCode(string file)
+		{
+			if (File.Exists(file))
+			{
+				using (StreamReader fileStream = new StreamReader(file))
+				{
+					while (!fileStream.EndOfStream)
+					{
+						string line = fileStream.ReadLine();
+						if (line == PreservedSectionMarker)
+						{
+							break;
+						}
+					}
+
+					if (!fileStream.EndOfStream)
+					{
+						// skip the rest of the comment + spacer line
+						fileStream.ReadLine(); // "Code below is preserved...
+						fileStream.ReadLine(); // "+++++++++++++++++++++++...
+						fileStream.ReadLine(); // */
+						fileStream.ReadLine(); //
+
+						string preservedCode = fileStream.ReadToEnd();
+
+						int lastEndif    = preservedCode.LastIndexOf("#endif", StringComparison.Ordinal);
+						preservedCode    = preservedCode.Remove(lastEndif);
+
+						return preservedCode;
+					}
+				}
+			}
+
+			return null;
+		}
+
+		#endregion
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/MibHeaderFile.cs

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System.Collections.Generic;
+using System.Text.RegularExpressions;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class MibHeaderFile
+	{
+
+		#region Fields
+
+		private readonly List<CodeElement> defines = new List<CodeElement>();
+		private readonly List<CodeElement> includes = new List<CodeElement>();
+		private readonly List<CodeElement> functionDeclarations = new List<CodeElement>();
+		private readonly List<CodeElement> variableDeclarations = new List<CodeElement>();
+
+		#endregion
+
+		public MibHeaderFile()
+		{
+		}
+
+		#region Accessors
+
+		public List<CodeElement> Defines
+		{
+			get { return this.defines; }
+		}
+
+		public List<CodeElement> Includes
+		{
+			get { return this.includes; }
+		}
+
+		public List<CodeElement> FunctionDeclarations
+		{
+			get { return this.functionDeclarations; }
+		}
+
+		public List<CodeElement> VariableDeclarations
+		{
+			get { return this.variableDeclarations; }
+		}
+
+		#endregion
+
+		#region Methods
+
+		public void Save(CGenerator cGenerator)
+		{
+			CFile cFile = new CFile();
+
+			cFile.AddElement(new Comment("Generated by LwipMibCompiler"));
+			cFile.AddElement(EmptyLine.SingleLine);
+			
+			string headerDefine = cGenerator.FileName;
+			headerDefine = new Regex("[^a-zA-Z0-9]").Replace(headerDefine, "_");
+			headerDefine = headerDefine.ToUpperInvariant();
+
+			CodeContainerBase e = cFile.AddElement(new PP_Ifdef(headerDefine, inverted: true)) as CodeContainerBase;
+			e.AddElement(new PP_Macro(headerDefine, headerDefine));
+			e.AddElement(EmptyLine.SingleLine);
+
+			e.AddElement(new PP_Include(LwipDefs.Incl_SnmpOpts));
+			e = e.AddElement(new PP_If(LwipDefs.Opt_SnmpEnabled)) as CodeContainerBase;
+			e.AddElement(EmptyLine.SingleLine);
+
+			CodeContainerBase cplusplusopen = e.AddElement(new PP_Ifdef("__cplusplus")) as CodeContainerBase;
+			cplusplusopen.AddElement(new Code("extern \"C\" {"));
+			e.AddElement(EmptyLine.SingleLine);
+
+			if (this.includes.Count > 0)
+			{
+				e.AddElements(this.includes);
+				e.AddElement(EmptyLine.SingleLine);
+			}
+
+			if (this.defines.Count > 0)
+			{
+				e.AddElements(this.defines);
+				e.AddElement(EmptyLine.SingleLine);
+			}
+			
+			e.AddElements(this.functionDeclarations, EmptyLine.SingleLine);
+			e.AddElements(this.variableDeclarations, EmptyLine.SingleLine);
+
+			e.AddElement(EmptyLine.SingleLine);
+			CodeContainerBase cplusplusclose = e.AddElement(new PP_Ifdef("__cplusplus")) as CodeContainerBase;
+			cplusplusclose.AddElement(new Code("}"));
+
+			e.AddElement(EmptyLine.SingleLine);
+			cFile.Save(cGenerator);
+		}
+
+		#endregion
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden 
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die mit einer Assembly verknüpft sind.
+[assembly: AssemblyTitle("LwipSnmpCodeGeneration")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("LwipSnmpCodeGeneration")]
+[assembly: AssemblyCopyright("Copyright ©  2015")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar 
+// für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von 
+// COM zugreifen müssen, legen Sie das ComVisible-Attribut für diesen Typ auf "true" fest.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("8cfbbb8b-dfbb-4dd5-80c9-e07845dd58c9")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion 
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder die standardmäßigen Build- und Revisionsnummern 
+// übernehmen, indem Sie "*" eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpMib.cs

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpMib : SnmpTreeNode
+	{
+		public uint[] BaseOid { get; set; }
+
+		public SnmpMib()
+			: base(null)
+		{
+		}
+
+		public SnmpMib(uint[] baseOid)
+			: base(null)
+		{
+			this.BaseOid = baseOid;
+		}
+
+		public override string FullNodeName
+		{
+			get { return this.Name.ToLowerInvariant() + "_root"; }
+		}
+
+		public override void GenerateCode(MibCFile mibFile)
+		{
+			base.GenerateCode(mibFile);
+
+			System.Diagnostics.Debug.Assert((this.BaseOid != null) && (this.BaseOid.Length > 0));
+			
+			// create and add BaseOID declarations
+			StringBuilder boidInitialization = new StringBuilder("{");
+			foreach (uint t in this.BaseOid)
+			{
+				boidInitialization.Append(t);
+				boidInitialization.Append(",");
+			}
+			boidInitialization.Length -= 1;
+			boidInitialization.Append("}");
+
+			VariableDeclaration boidDecl = new VariableDeclaration(
+				new VariableType(this.Name.ToLowerInvariant() + "_base_oid", LwipDefs.Vt_U32, null, ConstType.Value, String.Empty),
+				boidInitialization.ToString(), true);
+
+			mibFile.Declarations.Add(boidDecl);
+			mibFile.Declarations.Add(GetExportDeclaration());
+		}
+
+		public override void GenerateHeaderCode(MibHeaderFile mibHeaderFile)
+		{
+			mibHeaderFile.Includes.Add(new PP_Include("lwip/apps/snmp_core.h"));
+
+			mibHeaderFile.VariableDeclarations.Add(VariablePrototype.FromVariableDeclaration(GetExportDeclaration()));
+		}
+
+		VariableDeclaration GetExportDeclaration()
+		{
+			return new VariableDeclaration(
+				new VariableType(this.Name.ToLowerInvariant(), LwipDefs.Vt_StMib, null, ConstType.Value),
+				String.Format("{{{0}_base_oid, LWIP_ARRAYSIZE({0}_base_oid), &{1}.node}}", this.Name.ToLowerInvariant(), this.FullNodeName));
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpNode.cs

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text.RegularExpressions;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public abstract class SnmpNode
+	{
+		public static readonly Regex NameValidationRegex = new Regex(@"^\w+$");
+
+		private string name;
+		private readonly SnmpTreeNode parentNode;
+
+		protected SnmpNode(SnmpTreeNode parentNode)
+		{
+			this.parentNode = parentNode;
+		}
+
+		public SnmpTreeNode ParentNode
+		{
+			get { return this.parentNode; }
+		}
+
+		public virtual uint Oid { get; set; }
+
+		public abstract string FullNodeName
+		{
+			get;
+		}
+
+		public virtual string Name
+		{
+			get { return this.name; }
+			set
+			{
+				if (value != this.name)
+				{
+					// check for valid name
+					if (!NameValidationRegex.IsMatch(value))
+					{
+						throw new ArgumentOutOfRangeException("Name");
+					}
+
+					this.name = value;
+				}
+			}
+		}
+
+		public virtual void Generate(MibCFile generatedFile, MibHeaderFile generatedHeaderFile)
+		{
+			int declCount = generatedFile.Declarations.Count;
+			int implCount = generatedFile.Implementation.Count;
+
+			this.GenerateHeaderCode(generatedHeaderFile);
+			this.GenerateCode(generatedFile);
+
+			if (generatedFile.Declarations.Count != declCount)
+			{
+				generatedFile.Declarations.Add(EmptyLine.SingleLine);
+			}
+			if (generatedFile.Implementation.Count != implCount)
+			{
+				generatedFile.Implementation.Add(EmptyLine.SingleLine);
+			}
+		}
+
+		public abstract void GenerateCode(MibCFile mibFile);
+
+		public virtual void GenerateHeaderCode(MibHeaderFile mibHeaderFile)
+		{
+		}
+
+		/// <summary>
+		/// Called after node structure creation is completed and before code is created.
+		/// Offers the possibility to perform operations depending on properties/subnodes.
+		/// If the node shall be transformed to another node(-type) than the own instance
+		/// may be replaced on parent node by the transformed instance.
+		/// Calling sequence is always from leafs up to root. So a tree node can assume
+		/// that the analyze method was already called on all child nodes.
+		/// E.g. a tree node only has scalar sub nodes -> it transforms itself to a scalar array node
+		/// </summary>
+		/// <returns>The transformed node or null if nothing shall be changed in parent structure.</returns>
+		public virtual void Analyze()
+		{
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs

@@ -0,0 +1,293 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System.Collections.Generic;
+using System.Globalization;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public abstract class SnmpScalarAggregationNode: SnmpNode
+	{
+		private bool getMethodRequired  = false;
+		private bool testMethodRequired = false;
+		private bool setMethodRequired  = false;
+
+		protected SnmpScalarAggregationNode(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+		}
+
+		protected virtual string GetMethodName
+		{
+			get { return this.FullNodeName + LwipDefs.FnctSuffix_GetValue; }
+		}
+
+		protected bool GetMethodRequired
+		{
+			get { return this.getMethodRequired; }
+		}
+
+		protected virtual string TestMethodName
+		{
+			get { return this.FullNodeName + LwipDefs.FnctSuffix_SetTest; }
+		}
+
+		protected bool TestMethodRequired
+		{
+			get { return this.testMethodRequired; }
+		}
+
+		protected virtual string SetMethodName
+		{
+			get { return this.FullNodeName + LwipDefs.FnctSuffix_SetValue; }
+		}
+
+		protected bool SetMethodRequired
+		{
+			get { return this.setMethodRequired; }
+		}
+
+		protected abstract IEnumerable<SnmpScalarNode> AggregatedScalarNodes
+		{
+			get;
+		}
+
+		public override void Analyze()
+		{
+			base.Analyze();
+
+			this.getMethodRequired  = false;
+			this.testMethodRequired = false;
+			this.setMethodRequired  = false;
+
+			foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes)
+			{
+				if ((scalarNode.AccessMode == SnmpAccessMode.ReadOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite))
+				{
+					this.getMethodRequired = true;
+				}
+				if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite))
+				{
+					this.testMethodRequired = true;
+					this.setMethodRequired = true;
+				}
+
+				if (this.getMethodRequired && this.setMethodRequired)
+				{
+					break;
+				}
+			}
+		}
+
+		protected void GenerateAggregatedCode(MibCFile mibFile, VariableType instanceType, string switchSelector, bool generateDeclarations = true, bool generateImplementations = true)
+		{
+			if (this.getMethodRequired)
+			{
+				FunctionDeclaration getMethodDecl = new FunctionDeclaration(this.GetMethodName, isStatic: true);
+				getMethodDecl.Parameter.Add(instanceType);
+				getMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
+				getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_U16);
+
+				if (generateDeclarations)
+				{
+					mibFile.Declarations.Add(getMethodDecl);
+				}
+				if (generateImplementations)
+				{
+					Function getMethod = Function.FromDeclaration(getMethodDecl);
+					GenerateGetMethodCode(getMethod, switchSelector);
+					mibFile.Implementation.Add(getMethod);
+				}
+			}
+	
+			if (this.testMethodRequired)
+			{
+				FunctionDeclaration testMethodDecl = new FunctionDeclaration(this.TestMethodName, isStatic: true);
+				testMethodDecl.Parameter.Add(instanceType);
+				testMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16));
+				testMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
+				testMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err);
+
+				if (generateDeclarations)
+				{
+					mibFile.Declarations.Add(testMethodDecl);
+				}
+				if (generateImplementations)
+				{
+					Function testMethod = Function.FromDeclaration(testMethodDecl);
+					GenerateTestMethodCode(testMethod, switchSelector);
+					mibFile.Implementation.Add(testMethod);
+				}
+			}
+
+			if (this.setMethodRequired)
+			{
+				FunctionDeclaration setMethodDecl = new FunctionDeclaration(this.SetMethodName, isStatic: true);
+				setMethodDecl.Parameter.Add(instanceType);
+				setMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16));
+				setMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
+				setMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err);
+				
+				if (generateDeclarations)
+				{
+					mibFile.Declarations.Add(setMethodDecl);
+				}
+				if (generateImplementations)
+				{
+					Function setMethod = Function.FromDeclaration(setMethodDecl);
+					GenerateSetMethodCode(setMethod, switchSelector);
+					mibFile.Implementation.Add(setMethod);
+				}
+			}
+		}
+
+		protected virtual void GenerateGetMethodCode(Function getMethod, string switchSelector)
+		{
+			VariableDeclaration returnValue = new VariableDeclaration((VariableType)getMethod.ReturnType.Clone());
+			returnValue.Type.Name = "value_len";
+			getMethod.Declarations.Add(returnValue);
+			Switch sw = new Switch(switchSelector);
+
+			bool valueVarUsed = false;
+
+			foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes)
+			{
+				if ((scalarNode.AccessMode == SnmpAccessMode.ReadOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite))
+				{
+					SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture));
+					sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true));
+
+					scalarNode.GenerateGetMethodCode(sc, getMethod.Parameter[1].Name, ref valueVarUsed, returnValue.Type.Name);
+
+					sw.Switches.Add(sc);
+				}
+			}
+
+			SwitchCase scd = SwitchCase.GenerateDefault();
+			scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", getMethod.Name, switchSelector);
+			scd.AddCodeFormat("{0} = 0;", returnValue.Type.Name);
+			sw.Switches.Add(scd);
+
+			if (!valueVarUsed)
+			{
+				getMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getMethod.Parameter[1].Name);
+			}
+
+			getMethod.AddElement(sw);
+
+			getMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+		}
+
+		protected virtual void GenerateTestMethodCode(Function testMethod, string switchSelector)
+		{
+			VariableDeclaration returnValue = new VariableDeclaration((VariableType)testMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_WrongValue);
+			returnValue.Type.Name = "err";
+			testMethod.Declarations.Add(returnValue);
+			Switch sw = new Switch(switchSelector);
+
+			bool valueVarUsed = false;
+			bool lenVarUsed = false;
+
+			foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes)
+			{
+				if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite))
+				{
+					SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture));
+					sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true));
+
+					scalarNode.GenerateTestMethodCode(sc, testMethod.Parameter[2].Name, ref valueVarUsed, testMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name);
+
+					sw.Switches.Add(sc);
+				}
+			}
+
+			SwitchCase scd = SwitchCase.GenerateDefault();
+			scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", testMethod.Name, switchSelector);
+			sw.Switches.Add(scd);
+
+			if (!valueVarUsed)
+			{
+				testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[2].Name);
+			}
+			if (!lenVarUsed)
+			{
+				testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[1].Name);
+			}
+
+			testMethod.AddElement(sw);
+
+			testMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+		}
+
+		protected virtual void GenerateSetMethodCode(Function setMethod, string switchSelector)
+		{
+			VariableDeclaration returnValue = new VariableDeclaration((VariableType)setMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_Ok);
+			returnValue.Type.Name = "err";
+			setMethod.Declarations.Add(returnValue);
+			Switch sw = new Switch(switchSelector);
+
+			bool valueVarUsed = false;
+			bool lenVarUsed = false;
+			
+			foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes)
+			{
+				if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite))
+				{
+					SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture));
+					sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true));
+
+					scalarNode.GenerateSetMethodCode(sc, setMethod.Parameter[2].Name, ref valueVarUsed, setMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name);
+
+					sw.Switches.Add(sc);
+				}
+			}
+
+			SwitchCase scd = SwitchCase.GenerateDefault();
+			scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", setMethod.Name, switchSelector);
+			sw.Switches.Add(scd);
+
+			if (!valueVarUsed)
+			{
+				setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[2].Name);
+			}
+			if (!lenVarUsed)
+			{
+				setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[1].Name);
+			}
+
+			setMethod.AddElement(sw);
+
+			setMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarArrayNode.cs

@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarArrayNode : SnmpScalarAggregationNode
+	{
+		private readonly List<SnmpScalarNode> scalarNodes;
+
+		public SnmpScalarArrayNode(List<SnmpScalarNode> scalarNodes, SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+			this.scalarNodes = scalarNodes;
+		}
+
+		public override string FullNodeName
+		{
+			get { return this.Name.ToLowerInvariant() + "_scalars"; }
+		}
+
+		protected override IEnumerable<SnmpScalarNode> AggregatedScalarNodes
+		{
+			get { return this.scalarNodes; }
+		}
+
+		public override void GenerateCode(MibCFile mibFile)
+		{
+			VariableType instanceType = new VariableType("node", LwipDefs.Vt_StScalarArrayNodeDef, "*", ConstType.Value);
+			GenerateAggregatedCode(
+				mibFile,
+				instanceType,
+				instanceType.Name + "->oid");
+
+
+			// create and add node definitions
+			StringBuilder nodeDefs = new StringBuilder();
+			foreach (SnmpScalarNode scalarNode in this.scalarNodes)
+			{
+				nodeDefs.AppendFormat("  {{{0}, {1}, {2}}}, /* {3} */ \n",
+					scalarNode.Oid,
+					LwipDefs.GetAsn1DefForSnmpDataType(scalarNode.DataType),
+					LwipDefs.GetLwipDefForSnmpAccessMode(scalarNode.AccessMode),
+					scalarNode.Name);
+			}
+			if (nodeDefs.Length > 0)
+				nodeDefs.Length--;
+
+			VariableDeclaration nodeDefsDecl = new VariableDeclaration(
+				new VariableType(this.FullNodeName + "_nodes", LwipDefs.Vt_StScalarArrayNodeDef, null, ConstType.Value, String.Empty),
+				"{\n" + nodeDefs + "\n}" ,
+				isStatic: true);
+
+			mibFile.Declarations.Add(nodeDefsDecl);
+
+
+			// create and add node declaration
+			string nodeInitialization = String.Format("SNMP_SCALAR_CREATE_ARRAY_NODE({0}, {1}, {2}, {3}, {4})",
+				this.Oid,
+				nodeDefsDecl.Type.Name,
+				(this.GetMethodRequired) ? this.GetMethodName : LwipDefs.Null,
+				(this.TestMethodRequired) ? this.TestMethodName : LwipDefs.Null,
+				(this.SetMethodRequired) ? this.SetMethodName : LwipDefs.Null
+				);
+
+			mibFile.Declarations.Add(new VariableDeclaration(
+				new VariableType(this.FullNodeName, LwipDefs.Vt_StScalarArrayNode, null, ConstType.Value),
+				nodeInitialization,
+				isStatic: true));
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNode.cs

@@ -0,0 +1,395 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNode: SnmpNode
+	{
+		protected const string LocalValueName = "v"; // name of (casted) local value variable
+
+		private SnmpDataType dataType;
+		private SnmpAccessMode accessMode;
+		private readonly List<IRestriction> restrictions = new List<IRestriction>();
+
+		private bool   useExternalMethods = false;
+		private string externalGetMethod;
+		private string externalTestMethod;
+		private string externalSetMethod;
+
+
+		public SnmpScalarNode(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+		}
+
+		public override string FullNodeName
+		{
+			get { return this.Name.ToLowerInvariant() + "_scalar"; }
+		}
+
+		public SnmpDataType DataType
+		{
+			get { return this.dataType; }
+			set { this.dataType = value; }
+		}
+
+		public List<IRestriction> Restrictions
+		{
+			get { return this.restrictions; }
+		}
+
+		public SnmpAccessMode AccessMode
+		{
+			get { return this.accessMode; }
+			set { this.accessMode = value; }
+		}
+
+		public virtual string FixedValueLength
+		{
+			get { return null; }
+		}
+
+		/// <summary>
+		/// If scalar is used as a table index its value becomes part of the OID. This value returns how many OID parts are required to represent this value.
+		/// </summary>
+		public virtual int OidRepresentationLen
+		{
+			get { return -1; }
+		}
+
+		public bool UseExternalMethods
+		{
+			get { return this.useExternalMethods; }
+			set { this.useExternalMethods = value; }
+		}
+
+		public string ExternalGetMethod
+		{
+			get { return this.externalGetMethod; }
+			set { this.externalGetMethod = value; }
+		}
+		public string ExternalTestMethod
+		{
+			get { return this.externalTestMethod; }
+			set { this.externalTestMethod = value; }
+		}
+		public string ExternalSetMethod
+		{
+			get { return this.externalSetMethod; }
+			set { this.externalSetMethod = value; }
+		}
+
+		public override void GenerateCode(MibCFile mibFile)
+		{
+			string getMethodName;
+			string testMethodName;
+			string setMethodName;
+
+			if (this.useExternalMethods)
+			{
+				getMethodName  = this.externalGetMethod;
+				testMethodName = this.externalTestMethod;
+				setMethodName  = this.externalSetMethod;
+			}
+			else
+			{
+				getMethodName  = LwipDefs.Null;
+				testMethodName = LwipDefs.Null;
+				setMethodName  = LwipDefs.Null;
+				
+				if ((this.accessMode == SnmpAccessMode.ReadWrite) || (this.accessMode == SnmpAccessMode.ReadOnly))
+				{
+					FunctionDeclaration  getMethodDecl = new FunctionDeclaration(this.Name + LwipDefs.FnctSuffix_GetValue, isStatic: true);
+					getMethodDecl.Parameter.Add(new VariableType("instance", LwipDefs.Vt_StNodeInstance, "*"));
+					getMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
+					getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_U16);
+					mibFile.Declarations.Add(getMethodDecl);
+
+					Function getMethod = Function.FromDeclaration(getMethodDecl);
+					getMethodName = getMethod.Name;
+
+					VariableDeclaration returnValue = new VariableDeclaration((VariableType)getMethod.ReturnType.Clone());
+					returnValue.Type.Name = "value_len";
+					getMethod.Declarations.Add(returnValue);
+					getMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getMethod.Parameter[0].Name);
+
+					bool valueVarUsed = false;
+					GenerateGetMethodCode(getMethod, getMethod.Parameter[1].Name, ref valueVarUsed, returnValue.Type.Name);
+					if (!valueVarUsed)
+					{
+						getMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getMethod.Parameter[1].Name);
+					}
+
+					getMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+
+					mibFile.Implementation.Add(getMethod);
+				}
+
+				if ((this.accessMode == SnmpAccessMode.ReadWrite) || (this.accessMode == SnmpAccessMode.WriteOnly))
+				{
+					bool valueVarUsed;
+					bool lenVarUsed;
+					VariableDeclaration returnValue;
+
+					if (this.restrictions.Count > 0)
+					{
+						FunctionDeclaration testMethodDecl = new FunctionDeclaration(this.Name + LwipDefs.FnctSuffix_SetTest, isStatic: true);
+						testMethodDecl.Parameter.Add(new VariableType("instance", LwipDefs.Vt_StNodeInstance, "*"));
+						testMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16));
+						testMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
+						testMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err);
+						mibFile.Declarations.Add(testMethodDecl);
+
+						Function testMethod = Function.FromDeclaration(testMethodDecl);
+						testMethodName = testMethod.Name;
+
+						returnValue = new VariableDeclaration((VariableType)testMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_WrongValue);
+						returnValue.Type.Name = "err";
+						testMethod.Declarations.Add(returnValue);
+						testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[0].Name);
+
+						valueVarUsed = false;
+						lenVarUsed = false;
+
+						GenerateTestMethodCode(testMethod, testMethod.Parameter[2].Name, ref valueVarUsed, testMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name);
+
+						if (!valueVarUsed)
+						{
+							testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[2].Name);
+						}
+						if (!lenVarUsed)
+						{
+							testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[1].Name);
+						}
+
+						testMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+
+						mibFile.Implementation.Add(testMethod);
+
+					}
+					else
+					{
+						testMethodName = LwipDefs.FnctName_SetTest_Ok;
+					}
+
+					FunctionDeclaration setMethodDecl  = null;
+					setMethodDecl = new FunctionDeclaration(this.Name + LwipDefs.FnctSuffix_SetValue, isStatic: true);
+					setMethodDecl.Parameter.Add(new VariableType("instance", LwipDefs.Vt_StNodeInstance, "*"));
+					setMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16));
+					setMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
+					setMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err);
+					mibFile.Declarations.Add(setMethodDecl);
+
+					Function setMethod = Function.FromDeclaration(setMethodDecl);
+					setMethodName = setMethod.Name;
+
+					returnValue = new VariableDeclaration((VariableType)setMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_Ok);
+					returnValue.Type.Name = "err";
+					setMethod.Declarations.Add(returnValue);
+					setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[0].Name);
+
+					valueVarUsed = false;
+					lenVarUsed = false;
+
+					GenerateSetMethodCode(setMethod, setMethod.Parameter[2].Name, ref valueVarUsed, setMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name);
+
+					if (!valueVarUsed)
+					{
+						setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[2].Name);
+					}
+					if (!lenVarUsed)
+					{
+						setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[1].Name);
+					}
+
+					setMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+
+					mibFile.Implementation.Add(setMethod);
+				}
+			}
+
+			// create and add node declaration
+			string nodeInitialization;
+			if (this.accessMode == SnmpAccessMode.ReadOnly)
+			{
+				nodeInitialization = String.Format("SNMP_SCALAR_CREATE_NODE_READONLY({0}, {1}, {2})",
+					this.Oid,
+					LwipDefs.GetAsn1DefForSnmpDataType(this.dataType),
+					getMethodName);
+			}
+			else
+			{
+				nodeInitialization = String.Format("SNMP_SCALAR_CREATE_NODE({0}, {1}, {2}, {3}, {4}, {5})",
+					this.Oid,
+					LwipDefs.GetLwipDefForSnmpAccessMode(this.accessMode),
+					LwipDefs.GetAsn1DefForSnmpDataType(this.dataType),
+					getMethodName,
+					testMethodName,
+					setMethodName);
+			}
+
+			mibFile.Declarations.Add(new VariableDeclaration(
+				new VariableType(this.FullNodeName, LwipDefs.Vt_StScalarNode, null, ConstType.Value),
+				nodeInitialization, isStatic: true));
+		}
+
+		public virtual void GenerateGetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string retLenVarName)
+		{
+			bool localValueVarUsed;
+			if (GenerateValueDeclaration(container, LocalValueName, valueVarName))
+			{
+				valueVarUsed = true;
+				localValueVarUsed = false;
+			}
+			else
+			{
+				localValueVarUsed = true;  // do not generate UNUSED_ARG code
+			}
+
+			if (this.FixedValueLength == null)
+			{
+				// check that value with variable length fits into buffer
+				container.AddElement(new Comment(String.Format("TODO: take care that value with variable length fits into buffer: ({0} <= SNMP_MAX_VALUE_SIZE)", retLenVarName), singleLine: true));
+			}
+
+			GenerateGetMethodCodeCore(container, LocalValueName, ref localValueVarUsed, retLenVarName);
+			if (!localValueVarUsed)
+			{
+				container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", LocalValueName));
+			}
+		}
+
+		protected virtual void GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)
+		{
+			container.AddElement(new Comment(String.Format("TODO: put requested value to '*{0}' here", localValueVarName), singleLine: true));
+			container.AddCodeFormat("{0} = {1};", 
+				retLenVarName,
+				(!String.IsNullOrWhiteSpace(this.FixedValueLength)) ? this.FixedValueLength : "0");
+		}
+
+		public virtual void GenerateTestMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			if (this.Restrictions.Count > 0)
+			{
+				bool localVarUsed;
+				if (GenerateValueDeclaration(container, LocalValueName, valueVarName))
+				{
+					valueVarUsed = true;
+					localVarUsed = false;
+				}
+				else
+				{
+					localVarUsed = true;  // do not generate UNUSED_ARG code
+				}
+
+				if (!String.IsNullOrWhiteSpace(this.FixedValueLength))
+				{
+					// check for fixed value
+					container.AddCodeFormat("LWIP_ASSERT(\"Invalid length for datatype\", ({0} == {1}));", lenVarName, this.FixedValueLength);
+					lenVarUsed = true;
+				}
+
+				GenerateTestMethodCodeCore(container, LocalValueName, ref localVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
+
+				if (!localVarUsed)
+				{
+					container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", LocalValueName));
+				}
+			}
+			else
+			{
+				container.AddCodeFormat("{0} == {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok);
+			}
+		}
+
+		protected virtual void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			container.AddElement(new Comment(String.Format("TODO: test new value here:\nif (*{0} == ) {1} = {2};", localValueVarName, retErrVarName, LwipDefs.Def_ErrorCode_Ok)));
+		}
+
+		public virtual void GenerateSetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			bool localVarUsed;
+			if (GenerateValueDeclaration(container, LocalValueName, valueVarName))
+			{
+				valueVarUsed = true;
+				localVarUsed = false;
+			}
+			else
+			{
+				localVarUsed = true; // do not generate UNUSED_ARG code
+			}
+
+			GenerateSetMethodCodeCore(container, LocalValueName, ref localVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
+
+			if (!localVarUsed)
+			{
+				container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", LocalValueName));
+			}
+		}
+
+		protected virtual void GenerateSetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			container.AddElement(new Comment(String.Format("TODO: store new value contained in '*{0}' here", localValueVarName), singleLine: true)); 
+		}
+
+
+		protected virtual bool GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)
+		{
+			container.AddDeclaration(new VariableDeclaration(
+				new VariableType(variableName, LwipDefs.Vt_U8, "*"),
+				"(" + new VariableType(null, LwipDefs.Vt_U8, "*") + ")" + sourceName));
+
+			return true;
+		}
+
+		public static SnmpScalarNode CreateFromDatatype(SnmpDataType dataType, SnmpTreeNode parentNode)
+		{
+			switch (dataType)
+			{
+				case SnmpDataType.Integer:
+					return new SnmpScalarNodeInt(parentNode);
+
+				case SnmpDataType.Gauge:
+				case SnmpDataType.Counter:
+				case SnmpDataType.TimeTicks:
+					return new SnmpScalarNodeUint(dataType, parentNode);
+			}
+
+			return new SnmpScalarNode(parentNode);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeBits.cs

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeBits : SnmpScalarNode
+	{
+		private readonly uint bitCount;
+
+		public SnmpScalarNodeBits(SnmpTreeNode parentNode, uint bitCount)
+			: base(parentNode)
+		{
+			this.DataType = SnmpDataType.Bits;
+			this.bitCount = bitCount;
+		}
+
+		public override void GenerateGetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string retLenVarName)
+		{
+			container.AddCode(String.Format(
+				"{0} = snmp_encode_bits(({1} *){2}, SNMP_MAX_VALUE_SIZE, 0 /* TODO: pass real value here */, {3});",
+				retLenVarName, 
+				LwipDefs.Vt_U8,
+				valueVarName,
+				this.bitCount));
+			
+			valueVarUsed = true;
+		}
+
+		public override void GenerateTestMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			if (this.Restrictions.Count > 0)
+			{
+				const string bitVarName = "bits";
+
+				container.Declarations.Add(new VariableDeclaration(new VariableType(bitVarName, LwipDefs.Vt_U32)));
+
+				IfThenElse ite = new IfThenElse(String.Format(
+					"snmp_decode_bits(({0} *){1}, {2}, &{3}) == ERR_OK",
+					LwipDefs.Vt_U8,
+					valueVarName,
+					lenVarName,
+					bitVarName));
+
+				valueVarUsed = true;
+				lenVarUsed = true;
+
+				StringBuilder innerIfCond = new StringBuilder();
+				foreach (IRestriction restriction in this.Restrictions)
+				{
+					innerIfCond.Append(restriction.GetCheckCodeValid(bitVarName));
+					innerIfCond.Append(" || ");
+				}
+
+				innerIfCond.Length -= 4;
+
+				IfThenElse innerIte = new IfThenElse(innerIfCond.ToString());
+				innerIte.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok));
+				ite.AddElement(innerIte);
+				container.AddElement(ite);
+			}
+			else
+			{
+				base.GenerateTestMethodCode(container, valueVarName, ref valueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
+			}
+		}
+
+		public override void GenerateSetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			const string bitVarName = "bits";
+
+			container.Declarations.Add(new VariableDeclaration(new VariableType(bitVarName, LwipDefs.Vt_U32)));
+
+			IfThenElse ite = new IfThenElse(String.Format(
+				"snmp_decode_bits(({0} *){1}, {2}, &{3}) == ERR_OK",
+				LwipDefs.Vt_U8,
+				valueVarName,
+				lenVarName,
+				bitVarName));
+
+			valueVarUsed = true;
+			lenVarUsed = true;
+
+			ite.AddElement(new Comment(String.Format("TODO: store new value contained in '{0}' here", bitVarName), singleLine: true));
+
+			container.AddElement(ite);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeCounter64.cs

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeCounter64 : SnmpScalarNode
+	{
+		public SnmpScalarNodeCounter64(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+			this.DataType = SnmpDataType.Counter64;
+		}
+
+		protected override bool GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)
+		{
+			container.AddDeclaration(new VariableDeclaration(
+				new VariableType(variableName + "_high", LwipDefs.Vt_U32, "*"),
+				"(" + new VariableType(null, LwipDefs.Vt_U32, "*").ToString() + ")" + sourceName));
+			container.AddDeclaration(new VariableDeclaration(
+				new VariableType(variableName + "_low", LwipDefs.Vt_U32, "*"),
+				variableName + "_high + 1"));
+
+			container.AddCode(String.Format("LWIP_UNUSED_ARG({0}_high);", variableName));
+			container.AddCode(String.Format("LWIP_UNUSED_ARG({0}_low);", variableName));
+
+			return false;
+		}
+
+		public override string FixedValueLength
+		{
+			get { return String.Format("(2 * sizeof({0}))", LwipDefs.Vt_U32); }
+		}
+
+		public override int OidRepresentationLen
+		{
+			get { return 1; }
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeInt.cs

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeInt : SnmpScalarNode
+	{
+		public SnmpScalarNodeInt(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+			this.DataType = SnmpDataType.Integer;
+		}
+
+		protected override void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			System.Diagnostics.Trace.Assert(this.Restrictions.Count > 0);
+
+			StringBuilder ifCond = new StringBuilder();
+			foreach (IRestriction restriction in this.Restrictions)
+			{
+				ifCond.Append(restriction.GetCheckCodeValid("*" + localValueVarName));
+				ifCond.Append(" || ");
+
+				localValueVarUsed = true;
+			}
+
+			ifCond.Length -= 4;
+
+			IfThenElse ite = new IfThenElse(ifCond.ToString());
+			ite.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok));
+			container.AddElement(ite);
+		}
+
+		protected override bool GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)
+		{
+			container.AddDeclaration(new VariableDeclaration(
+				new VariableType(variableName, LwipDefs.Vt_S32, "*"),
+				"(" + new VariableType(null, LwipDefs.Vt_S32, "*") + ")" + sourceName));
+
+			return true;
+		}
+
+		public override string FixedValueLength
+		{
+			get { return String.Format("sizeof({0})", LwipDefs.Vt_S32); }
+		}
+
+		public override int OidRepresentationLen
+		{
+			get { return 1; }
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeObjectIdentifier.cs

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeObjectIdentifier: SnmpScalarNode
+	{
+		public SnmpScalarNodeObjectIdentifier(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+			this.DataType = SnmpDataType.ObjectIdentifier;
+		}
+
+		protected override bool GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)
+		{
+			container.AddDeclaration(new VariableDeclaration(
+				new VariableType(variableName, LwipDefs.Vt_U32, "*"),
+				"(" + new VariableType(null, LwipDefs.Vt_U32, "*") + ")" + sourceName));
+
+			return true;
+		}
+
+		protected override void GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)
+		{
+			container.AddElement(new Comment(String.Format("TODO: put requested value to '*{0}' here. '{0}' has to be interpreted as {1}[]", localValueVarName, LwipDefs.Vt_U32), singleLine: true));
+			container.AddElement(EmptyLine.SingleLine);
+			container.AddCode(String.Format("{0} = 0; // TODO: return real value length here (should be 'numOfElements * sizeof({1})')", retLenVarName, LwipDefs.Vt_U32));
+		}
+
+		protected override void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			VariableDeclaration objIdLenVar = new VariableDeclaration(
+				new VariableType(localValueVarName + "_len", LwipDefs.Vt_U8),
+				String.Format("{0} / sizeof({1})", lenVarName, LwipDefs.Vt_U32));
+			lenVarUsed = true;
+
+			container.Declarations.Add(objIdLenVar);
+
+			base.GenerateTestMethodCodeCore(container, localValueVarName, ref localValueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
+
+			container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", objIdLenVar.Type.Name));
+		}
+
+		protected override void GenerateSetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			VariableDeclaration objIdLenVar = new VariableDeclaration(
+				new VariableType(localValueVarName + "_len", LwipDefs.Vt_U8),
+				String.Format("{0} / sizeof({1})", lenVarName, LwipDefs.Vt_U32));
+			lenVarUsed = true;
+
+			container.Declarations.Add(objIdLenVar);
+
+			base.GenerateSetMethodCodeCore(container, localValueVarName, ref localValueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
+
+			container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", objIdLenVar.Type.Name));
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeOctetString.cs

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeOctetString : SnmpScalarNode
+	{
+		public SnmpScalarNodeOctetString(SnmpDataType dataType, SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+			System.Diagnostics.Debug.Assert(
+				(dataType == SnmpDataType.OctetString) || 
+				 (dataType == SnmpDataType.Opaque) || 
+				 (dataType == SnmpDataType.IpAddress));
+
+			this.DataType = dataType;
+		}
+
+		protected override void GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)
+		{
+			if (this.Restrictions.Count > 0)
+			{
+				StringBuilder ifCond = new StringBuilder();
+				foreach (IRestriction restriction in this.Restrictions)
+				{
+					ifCond.Append(restriction.GetCheckCodeValid(retLenVarName));
+					ifCond.Append(" || ");
+				}
+
+				ifCond.Length -= 4;
+				container.AddElement(new Comment("TODO: take care of len restrictions defined in MIB: " + ifCond, singleLine: true));
+			}
+			base.GenerateGetMethodCodeCore(container, localValueVarName, ref localValueVarUsed, retLenVarName);
+		}
+
+		protected override void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			System.Diagnostics.Trace.Assert(this.Restrictions.Count > 0);
+
+			// checks refer to length of octet string
+			StringBuilder ifCond = new StringBuilder();
+			foreach (IRestriction restriction in this.Restrictions)
+			{
+				ifCond.Append(restriction.GetCheckCodeValid(lenVarName));
+				ifCond.Append(" || ");
+
+				lenVarUsed = true;
+			}
+
+			ifCond.Length -= 4;
+
+			IfThenElse ite = new IfThenElse(ifCond.ToString());
+			ite.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok));
+			container.AddElement(ite);
+		}
+
+		public override int OidRepresentationLen
+		{
+			get
+			{
+				// check restrictions if we are set to one fixed length
+				if ((this.Restrictions != null) && (this.Restrictions.Count > 0))
+				{
+					foreach (IRestriction restriction in this.Restrictions)
+					{
+						if (restriction is IsInRangeRestriction)
+						{
+							if ((restriction as IsInRangeRestriction).RangeStart == (restriction as IsInRangeRestriction).RangeEnd)
+							{
+								return (int)(restriction as IsInRangeRestriction).RangeStart;
+							}
+						}
+						else if (restriction is IsEqualRestriction)
+						{
+							return (int)(restriction as IsEqualRestriction).Value;
+						}
+					}
+				}
+
+				return -1; // variable length
+			}
+		}
+
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeTruthValue.cs

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeTruthValue : SnmpScalarNodeInt
+	{
+		public SnmpScalarNodeTruthValue(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+		}
+
+		protected override void GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)
+		{
+			container.AddCodeFormat("snmp_encode_truthvalue({0}, /* TODO: put requested bool value here */ 0);", localValueVarName);
+			localValueVarUsed = true;
+			
+			container.AddCode(String.Format("{0} = {1};",
+				retLenVarName,
+				(!String.IsNullOrWhiteSpace(this.FixedValueLength)) ? this.FixedValueLength : "0"));
+		}
+
+		protected override void GenerateSetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			VariableType truthVar = new VariableType("bool_value", LwipDefs.Vt_U8);
+			container.Declarations.Add(new VariableDeclaration(truthVar));
+
+			container.AddCodeFormat("snmp_decode_truthvalue({0}, &{1});", localValueVarName, truthVar.Name);
+			localValueVarUsed = true;
+
+			container.AddElement(new Comment(String.Format("TODO: store new value contained in '{0}' here", truthVar.Name), singleLine: true)); 
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNodeUint.cs

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpScalarNodeUint : SnmpScalarNode
+	{
+		public SnmpScalarNodeUint(SnmpDataType dataType, SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+			System.Diagnostics.Debug.Assert(
+				(dataType == SnmpDataType.Counter) || 
+				 (dataType == SnmpDataType.Gauge) || 
+				 (dataType == SnmpDataType.TimeTicks));
+
+			this.DataType = dataType;
+		}
+
+		protected override void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
+		{
+			System.Diagnostics.Trace.Assert(this.Restrictions.Count > 0);
+
+			StringBuilder ifCond = new StringBuilder();
+			foreach (IRestriction restriction in this.Restrictions)
+			{
+				ifCond.Append(restriction.GetCheckCodeValid("*" + localValueVarName));
+				ifCond.Append(" || ");
+
+				localValueVarUsed = true;
+			}
+
+			ifCond.Length -= 4;
+
+			IfThenElse ite = new IfThenElse(ifCond.ToString());
+			ite.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok));
+			container.AddElement(ite);
+		}
+
+		protected override bool GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)
+		{
+			container.AddDeclaration(new VariableDeclaration(
+				new VariableType(variableName, LwipDefs.Vt_U32, "*"),
+				"(" + new VariableType(null, LwipDefs.Vt_U32, "*") + ")" + sourceName));
+
+			return true;
+		}
+
+		public override string FixedValueLength
+		{
+			get { return String.Format("sizeof({0})", LwipDefs.Vt_U32); }
+		}
+
+		public override int OidRepresentationLen
+		{
+			get { return 1; }
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpTableNode.cs

@@ -0,0 +1,332 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpTableNode: SnmpScalarAggregationNode
+	{
+		private readonly List<SnmpScalarNode> cellNodes = new List<SnmpScalarNode>();
+		private readonly List<SnmpScalarNode> indexNodes = new List<SnmpScalarNode>();
+		private string augmentedTableRow = null;
+
+
+		public SnmpTableNode(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+		}
+
+		public List<SnmpScalarNode> CellNodes
+		{
+			get { return cellNodes; }
+		}
+
+		public List<SnmpScalarNode> IndexNodes
+		{
+			get { return indexNodes; }
+		}
+
+		public string AugmentedTableRow
+		{
+			get { return this.augmentedTableRow; }
+			set { this.augmentedTableRow = value; }
+		}
+
+		public override string FullNodeName
+		{
+			get
+			{
+				string result = this.Name.ToLowerInvariant();
+				if (!result.Contains("table"))
+				{
+					result += "_table";
+				}
+
+				return result;				
+			}
+		}
+
+		protected override IEnumerable<SnmpScalarNode> AggregatedScalarNodes
+		{
+			get { return this.cellNodes; }
+		}
+
+		public override void GenerateCode(MibCFile mibFile)
+		{
+			FunctionDeclaration getInstanceMethodDecl = new FunctionDeclaration(this.FullNodeName + LwipDefs.FnctSuffix_GetInstance, isStatic: true);
+			getInstanceMethodDecl.Parameter.Add(new VariableType("column", LwipDefs.Vt_U32, "*", ConstType.Value));
+			getInstanceMethodDecl.Parameter.Add(new VariableType("row_oid", LwipDefs.Vt_U32, "*", ConstType.Value));
+			getInstanceMethodDecl.Parameter.Add(new VariableType("row_oid_len", LwipDefs.Vt_U8, ""));
+			getInstanceMethodDecl.Parameter.Add(new VariableType("cell_instance", LwipDefs.Vt_StNodeInstance, "*"));
+			getInstanceMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err);
+			mibFile.Declarations.Add(getInstanceMethodDecl);
+
+			Function getInstanceMethod = Function.FromDeclaration(getInstanceMethodDecl);
+			GenerateGetInstanceMethodCode(getInstanceMethod);
+			mibFile.Implementation.Add(getInstanceMethod);
+
+
+			FunctionDeclaration getNextInstanceMethodDecl = new FunctionDeclaration(this.FullNodeName + LwipDefs.FnctSuffix_GetNextInstance, isStatic: true);
+			getNextInstanceMethodDecl.Parameter.Add(new VariableType("column", LwipDefs.Vt_U32, "*", ConstType.Value));
+			getNextInstanceMethodDecl.Parameter.Add(new VariableType("row_oid", LwipDefs.Vt_StObjectId, "*"));
+			getNextInstanceMethodDecl.Parameter.Add(new VariableType("cell_instance", LwipDefs.Vt_StNodeInstance, "*"));
+			getNextInstanceMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err);
+			mibFile.Declarations.Add(getNextInstanceMethodDecl);
+
+			Function getNextInstanceMethod = Function.FromDeclaration(getNextInstanceMethodDecl);
+			GenerateGetNextInstanceMethodCode(getNextInstanceMethod);
+			mibFile.Implementation.Add(getNextInstanceMethod);
+
+			
+			VariableType instanceType = new VariableType("cell_instance", LwipDefs.Vt_StNodeInstance, "*");
+			GenerateAggregatedCode(
+				mibFile,
+				instanceType,
+				String.Format("SNMP_TABLE_GET_COLUMN_FROM_OID({0}->instance_oid.id)", instanceType.Name));
+
+
+			#region create and add column/table definitions
+
+			StringBuilder colDefs = new StringBuilder();
+			foreach (SnmpScalarNode colNode in this.cellNodes)
+			{
+				colDefs.AppendFormat("  {{{0}, {1}, {2}}}, /* {3} */ \n",
+					colNode.Oid,
+					LwipDefs.GetAsn1DefForSnmpDataType(colNode.DataType),
+					LwipDefs.GetLwipDefForSnmpAccessMode(colNode.AccessMode),
+					colNode.Name);
+			}
+			if (colDefs.Length > 0)
+			{
+				colDefs.Length--;
+			}
+
+			VariableDeclaration colDefsDecl = new VariableDeclaration(
+				new VariableType(this.FullNodeName + "_columns", LwipDefs.Vt_StTableColumnDef, null, ConstType.Value, String.Empty),
+				"{\n" + colDefs + "\n}",
+				isStatic: true);
+
+			mibFile.Declarations.Add(colDefsDecl);
+
+			string nodeInitialization = String.Format("SNMP_TABLE_CREATE({0}, {1}, {2}, {3}, {4}, {5}, {6})",
+				this.Oid,
+				colDefsDecl.Type.Name,
+				getInstanceMethodDecl.Name, getNextInstanceMethodDecl.Name,
+				(this.GetMethodRequired) ? this.GetMethodName : LwipDefs.Null,
+				(this.TestMethodRequired) ? this.TestMethodName : LwipDefs.Null,
+				(this.SetMethodRequired) ? this.SetMethodName : LwipDefs.Null
+				);
+
+			mibFile.Declarations.Add(new VariableDeclaration(
+				new VariableType(this.FullNodeName, LwipDefs.Vt_StTableNode, null, ConstType.Value),
+				nodeInitialization,
+				isStatic: true));
+							
+			#endregion
+		}
+
+		protected virtual void GenerateGetInstanceMethodCode(Function getInstanceMethod)
+		{
+			VariableDeclaration returnValue = new VariableDeclaration((VariableType)getInstanceMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_NoSuchInstance);
+			returnValue.Type.Name = "err";
+			getInstanceMethod.Declarations.Add(returnValue);
+
+			int instanceOidLength = 0;
+			StringBuilder indexColumns = new StringBuilder();
+			foreach (SnmpScalarNode indexNode in this.indexNodes)
+			{
+				if (instanceOidLength >= 0)
+				{
+					if (indexNode.OidRepresentationLen >= 0)
+					{
+						instanceOidLength += indexNode.OidRepresentationLen;
+					}
+					else
+					{
+						// at least one index column has a variable length -> we cannot perform a static check
+						instanceOidLength = -1;
+					}
+				}
+
+				indexColumns.AppendFormat(
+					" {0} ({1}, OID length = {2})\n",
+					indexNode.Name,
+					indexNode.DataType,
+					(indexNode.OidRepresentationLen >= 0) ? indexNode.OidRepresentationLen.ToString() : "variable");
+			}
+			if (indexColumns.Length > 0)
+			{
+				indexColumns.Length--;
+
+				getInstanceMethod.Declarations.Insert(0, new Comment(String.Format(
+					"The instance OID of this table consists of following (index) column(s):\n{0}",
+					indexColumns)));
+			}
+
+			string augmentsHint = "";
+			if (!String.IsNullOrWhiteSpace(this.augmentedTableRow))
+			{
+				augmentsHint = String.Format(
+					"This table augments table '{0}'! Index columns therefore belong to table '{0}'!\n" + 
+					"You may simply call the '*{1}' method of this table.\n\n",
+					(this.augmentedTableRow.ToLowerInvariant().EndsWith("entry")) ? this.augmentedTableRow.Substring(0, this.augmentedTableRow.Length-5) : this.augmentedTableRow,
+					LwipDefs.FnctSuffix_GetInstance);
+			}
+
+			CodeContainerBase ccb = getInstanceMethod;
+			if (instanceOidLength > 0)
+			{
+				IfThenElse ite = new IfThenElse(String.Format("{0} == {1}", getInstanceMethod.Parameter[2].Name, instanceOidLength));
+				getInstanceMethod.AddElement(ite);
+				ccb = ite;
+			}
+
+			ccb.AddCodeFormat("LWIP_UNUSED_ARG({0});", getInstanceMethod.Parameter[0].Name);
+			ccb.AddCodeFormat("LWIP_UNUSED_ARG({0});", getInstanceMethod.Parameter[1].Name);
+			if (instanceOidLength <= 0)
+			{
+				ccb.AddCodeFormat("LWIP_UNUSED_ARG({0});", getInstanceMethod.Parameter[2].Name);
+			}
+			ccb.AddCodeFormat("LWIP_UNUSED_ARG({0});", getInstanceMethod.Parameter[3].Name);
+
+			ccb.AddElement(new Comment(String.Format(
+				"TODO: check if '{0}'/'{1}' params contain a valid instance oid for a row\n" +
+				"If so, set '{2} = {3};'\n\n" + 
+				"snmp_oid_* methods may be used for easier processing of oid\n\n" + 
+				"{4}" + 
+				"In order to avoid decoding OID a second time in subsequent get_value/set_test/set_value methods,\n" +
+				"you may store an arbitrary value (like a pointer to target value object) in '{5}->reference'/'{5}->reference_len'.\n" +
+				"But be aware that not always a subsequent method is called -> Do NOT allocate memory here and try to release it in subsequent methods!\n\n" +
+				"You also may replace function pointers in '{5}' param for get/test/set methods which contain the default values from table definition,\n" +
+				"in order to provide special methods, for the currently processed cell. Changed pointers are only valid for current request.",
+				getInstanceMethod.Parameter[1].Name,
+				getInstanceMethod.Parameter[2].Name,
+				returnValue.Type.Name,
+				LwipDefs.Def_ErrorCode_Ok,
+				augmentsHint,
+				getInstanceMethod.Parameter[3].Name
+				)));
+
+			getInstanceMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+		}
+
+		protected virtual void GenerateGetNextInstanceMethodCode(Function getNextInstanceMethod)
+		{
+			getNextInstanceMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getNextInstanceMethod.Parameter[0].Name);
+			getNextInstanceMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getNextInstanceMethod.Parameter[1].Name);
+			getNextInstanceMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getNextInstanceMethod.Parameter[2].Name);
+
+			VariableDeclaration returnValue = new VariableDeclaration((VariableType)getNextInstanceMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_NoSuchInstance);
+			returnValue.Type.Name = "err";
+			getNextInstanceMethod.Declarations.Add(returnValue);
+
+			StringBuilder indexColumns = new StringBuilder();
+			foreach (SnmpScalarNode indexNode in this.indexNodes)
+			{
+				indexColumns.AppendFormat(
+					" {0} ({1}, OID length = {2})\n",
+					indexNode.Name,
+					indexNode.DataType,
+					(indexNode.OidRepresentationLen >= 0) ? indexNode.OidRepresentationLen.ToString() : "variable");
+			}
+			if (indexColumns.Length > 0)
+			{
+				indexColumns.Length--;
+
+				getNextInstanceMethod.Declarations.Insert(0, new Comment(String.Format(
+					"The instance OID of this table consists of following (index) column(s):\n{0}",
+					indexColumns)));
+			}
+
+			string augmentsHint = "";
+			if (!String.IsNullOrWhiteSpace(this.augmentedTableRow))
+			{
+				augmentsHint = String.Format(
+					"This table augments table '{0}'! Index columns therefore belong to table '{0}'!\n" + 
+					"You may simply call the '*{1}' method of this table.\n\n",
+					(this.augmentedTableRow.ToLowerInvariant().EndsWith("entry")) ? this.augmentedTableRow.Substring(0, this.augmentedTableRow.Length-5) : this.augmentedTableRow,
+					LwipDefs.FnctSuffix_GetNextInstance);
+			}
+
+			getNextInstanceMethod.AddElement(new Comment(String.Format(
+				"TODO: analyze '{0}->id'/'{0}->len' and return the subsequent row instance\n" +
+				"Be aware that '{0}->id'/'{0}->len' must not point to a valid instance or have correct instance length.\n" +
+				"If '{0}->len' is 0, return the first instance. If '{0}->len' is longer than expected, cut superfluous OID parts.\n" +
+				"If a valid next instance is found, store it in '{0}->id'/'{0}->len' and set '{1} = {2};'\n\n" + 
+				"snmp_oid_* methods may be used for easier processing of oid\n\n" + 
+				"{3}" + 
+				"In order to avoid decoding OID a second time in subsequent get_value/set_test/set_value methods,\n" +
+				"you may store an arbitrary value (like a pointer to target value object) in '{4}->reference'/'{4}->reference_len'.\n" +
+				"But be aware that not always a subsequent method is called -> Do NOT allocate memory here and try to release it in subsequent methods!\n\n" +
+				"You also may replace function pointers in '{4}' param for get/test/set methods which contain the default values from table definition,\n" +
+				"in order to provide special methods, for the currently processed cell. Changed pointers are only valid for current request.",
+				getNextInstanceMethod.Parameter[1].Name,
+				returnValue.Type.Name,
+				LwipDefs.Def_ErrorCode_Ok,
+				augmentsHint,
+				getNextInstanceMethod.Parameter[2].Name
+				)));
+
+			getNextInstanceMethod.AddElement(new Comment(String.Format(
+				"For easier processing and getting the next instance, you may use the 'snmp_next_oid_*' enumerator.\n" +
+				"Simply pass all known instance OID's to it and it returns the next valid one:\n\n" +
+				"{0} state;\n" +
+				"{1} result_buf;\n" +
+				"snmp_next_oid_init(&state, {2}->id, {2}->len, result_buf, LWIP_SNMP_OBJ_ID_LEN);\n" + 
+				"while ({{not all instances passed}}) {{\n" + 
+				"  {1} test_oid;\n" + 
+				"  {{fill test_oid to create instance oid for next instance}}\n" + 
+				"  snmp_next_oid_check(&state, test_oid->id, test_oid->len, {{target_data_ptr}});\n" + 
+				"}}\n" + 
+				"if(state.status == SNMP_NEXT_OID_STATUS_SUCCESS) {{\n" + 
+				"  snmp_oid_assign(row_oid, result_buf->oid, result_buf->len);\n" +
+				"  {3}->reference.ptr = state.reference; //==target_data_ptr, for usage in subsequent get/test/set\n" + 
+				"  {4} = {5};\n" + 
+				"}}"
+				,
+				LwipDefs.Vt_StNextOidState,
+				LwipDefs.Vt_StObjectId,
+				getNextInstanceMethod.Parameter[1].Name,
+				getNextInstanceMethod.Parameter[2].Name,
+				returnValue.Type.Name,
+				LwipDefs.Def_ErrorCode_Ok
+				)));
+
+			getNextInstanceMethod.AddCodeFormat("return {0};", returnValue.Type.Name);
+		}
+
+	}
+}

src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpTreeNode.cs

@@ -0,0 +1,242 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using CCodeGeneration;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class SnmpTreeNode: SnmpScalarAggregationNode
+	{
+		private readonly List<SnmpNode> childNodes       = new List<SnmpNode>();
+		private readonly List<SnmpScalarNode> childScalarNodes = new List<SnmpScalarNode>();
+		private string fullOid = "";
+
+		public SnmpTreeNode(SnmpTreeNode parentNode)
+			: base(parentNode)
+		{
+		}
+
+		public override string FullNodeName
+		{
+			get { return this.Name.ToLowerInvariant() + "_treenode"; }
+		}
+
+		public string FullOid
+		{
+			get { return this.fullOid; }
+			set { this.fullOid = value; }
+		}
+
+		public List<SnmpNode> ChildNodes
+		{
+			get { return this.childNodes; }
+		}
+
+		protected override IEnumerable<SnmpScalarNode> AggregatedScalarNodes
+		{
+			get { return this.childScalarNodes; }
+		}
+
+		private void GenerateAggregatedCode(MibCFile mibFile, bool generateDeclarations, bool generateImplementations)
+		{
+			VariableType instanceType = new VariableType("instance", LwipDefs.Vt_StNodeInstance, "*");
+			base.GenerateAggregatedCode(
+				mibFile,
+				instanceType,
+				String.Format("{0}->node->oid", instanceType.Name),
+				generateDeclarations,
+				generateImplementations);
+		}
+
+		private void GenerateAggregateMethodDeclarations(MibCFile mibFile)
+		{
+			if (LwipOpts.GenerateSingleAccessMethodsForTreeNodeScalars && (this.childScalarNodes.Count > 1))
+			{
+				GenerateAggregatedCode(mibFile, true, false);
+			}
+		}
+
+		public override void GenerateCode(MibCFile mibFile)
+		{
+			string nodeInitialization;
+
+			if (LwipOpts.GenerateSingleAccessMethodsForTreeNodeScalars && (this.childScalarNodes.Count > 1))
+			{
+				GenerateAggregatedCode(mibFile, false, true);
+			}
+
+			// create and add node declaration
+			if (this.childNodes.Count > 0)
+			{
+				StringBuilder subnodeArrayInitialization = new StringBuilder();
+
+				for (int i=0; i<this.childNodes.Count; i++)
+				{
+					subnodeArrayInitialization.Append("  &");
+					subnodeArrayInitialization.Append(this.childNodes[i].FullNodeName);
+					subnodeArrayInitialization.Append(".node");
+					if (!(this.childNodes[i] is SnmpTreeNode))
+					{
+						subnodeArrayInitialization.Append(".node");
+					}
+
+					if (i < (this.childNodes.Count - 1))
+					{
+						subnodeArrayInitialization.Append(",\n");
+					}
+				}
+
+				VariableDeclaration subnodeArray = new VariableDeclaration(
+					new VariableType(this.Name.ToLowerInvariant() + "_subnodes", LwipDefs.Vt_StNode, "*", ConstType.Both, String.Empty),
+					"{\n" + subnodeArrayInitialization + "\n}",
+					isStatic: true);
+
+				mibFile.Declarations.Add(subnodeArray);
+
+				nodeInitialization = String.Format("SNMP_CREATE_TREE_NODE({0}, {1})", this.Oid, subnodeArray.Type.Name);
+			}
+			else
+			{
+				nodeInitialization = String.Format("SNMP_CREATE_EMPTY_TREE_NODE({0})", this.Oid);
+			}
+
+			mibFile.Declarations.Add(new VariableDeclaration(
+				new VariableType(this.FullNodeName, LwipDefs.Vt_StTreeNode, null, ConstType.Value),
+				nodeInitialization,
+				isStatic: true));
+		}
+
+		public override void Analyze()
+		{
+			this.childScalarNodes.Clear();
+
+			// delegate analyze (don't use enumerator because the child node may change our child collection by e.g. removing or replacing itself)
+			for (int i=this.ChildNodes.Count-1; i>=0; i--)
+			{
+				this.ChildNodes[i].Analyze();
+			}
+
+			// collect scalar nodes
+			foreach (SnmpNode childNode in this.childNodes)
+			{
+				SnmpScalarNode scalarNode = childNode as SnmpScalarNode;
+				if (scalarNode != null)
+				{
+					this.childScalarNodes.Add(scalarNode);
+				}
+			}
+
+			base.Analyze();
+
+			// check if we can merge this node to a scalar array node (all childs need to be scalars)
+			if (this.childNodes.Count > 0)
+			{
+				if (LwipOpts.GenerateScalarArrays && (this.childScalarNodes.Count == this.childNodes.Count) && (this.ParentNode != null))
+				{
+					SnmpScalarArrayNode scalarArrayNode = new SnmpScalarArrayNode(this.childScalarNodes, this.ParentNode);
+					scalarArrayNode.Oid  = this.Oid;
+					scalarArrayNode.Name = this.Name;
+					scalarArrayNode.Analyze();
+
+					for (int i=0; i<this.ParentNode.ChildNodes.Count; i++)
+					{
+						if (this.ParentNode.ChildNodes[i] == this)
+						{
+							this.ParentNode.ChildNodes.RemoveAt(i);
+							this.ParentNode.ChildNodes.Insert(i, scalarArrayNode);
+							break;
+						}
+					}
+				}
+				else if (LwipOpts.GenerateSingleAccessMethodsForTreeNodeScalars && (this.childScalarNodes.Count > 1))
+				{
+					foreach (SnmpScalarNode scalarNode in this.childScalarNodes)
+					{
+						scalarNode.UseExternalMethods = true;
+						scalarNode.ExternalGetMethod  = this.GetMethodName;
+						scalarNode.ExternalTestMethod = this.TestMethodName;
+						scalarNode.ExternalSetMethod  = this.SetMethodName;
+					}
+				}
+			}
+			else // if (this.childNodes.Count == 0)
+			{
+				if (!LwipOpts.GenerateEmptyFolders && (this.ParentNode != null))
+				{
+					// do not generate this empty folder because it only waste (static) memory
+					for (int i=0; i<this.ParentNode.ChildNodes.Count; i++)
+					{
+						if (this.ParentNode.ChildNodes[i] == this)
+						{
+							this.ParentNode.ChildNodes.RemoveAt(i);
+							break;
+						}
+					}
+				}
+			}
+		}
+
+		public override void Generate(MibCFile generatedFile, MibHeaderFile generatedHeaderFile)
+		{
+			// generate code of child nodes
+			foreach (SnmpNode childNode in this.childNodes)
+			{
+				if (childNode is SnmpTreeNode)
+				{
+					childNode.Generate(generatedFile, generatedHeaderFile);
+				}
+			}
+
+			Comment dividerComment = new Comment(
+				String.Format("--- {0} {1} -----------------------------------------------------", this.Name, this.fullOid),
+				singleLine: true);
+
+			generatedFile.Declarations.Add(dividerComment);
+			generatedFile.Implementation.Add(dividerComment);
+
+			this.GenerateAggregateMethodDeclarations(generatedFile);
+
+			foreach (SnmpNode childNode in this.childNodes)
+			{
+				if (!(childNode is SnmpTreeNode))
+				{
+					childNode.Generate(generatedFile, generatedHeaderFile);
+				}
+			}
+
+			base.Generate(generatedFile, generatedHeaderFile);
+		}
+	}
+}

src/apps/snmp/LwipMibCompiler/Mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB

@@ -0,0 +1,131 @@
+
+
+  IANA-ADDRESS-FAMILY-NUMBERS-MIB DEFINITIONS ::= BEGIN
+
+  IMPORTS
+      MODULE-IDENTITY,
+      mib-2                               FROM SNMPv2-SMI
+      TEXTUAL-CONVENTION                  FROM SNMPv2-TC;
+
+  ianaAddressFamilyNumbers MODULE-IDENTITY
+      LAST-UPDATED "200203140000Z"  -- March 14, 2002
+      ORGANIZATION "IANA"
+      CONTACT-INFO
+          "Postal:    Internet Assigned Numbers Authority
+                      Internet Corporation for Assigned Names
+		      and Numbers
+                      4676 Admiralty Way, Suite 330
+                      Marina del Rey, CA 90292-6601
+                      USA
+
+          Tel:    +1  310-823-9358
+          E-Mail: iana&iana.org"
+      DESCRIPTION
+          "The MIB module defines the AddressFamilyNumbers
+          textual convention."
+
+      -- revision history
+
+      REVISION     "200203140000Z"  -- March 14, 2002
+      DESCRIPTION  "AddressFamilyNumbers assignment 22 to 
+                   fibreChannelWWPN. AddressFamilyNumbers 
+                   assignment 23 to fibreChannelWWNN.
+                   AddressFamilyNumers assignment 24 to gwid."
+
+      REVISION     "200009080000Z"  -- September 8, 2000
+      DESCRIPTION  "AddressFamilyNumbers assignment 19 to xtpOverIpv4.  
+                   AddressFamilyNumbers assignment 20 to xtpOverIpv6.  
+                   AddressFamilyNumbers assignment 21 to xtpNativeModeXTP."
+
+      REVISION     "200003010000Z"  -- March 1, 2000
+      DESCRIPTION  "AddressFamilyNumbers assignment 17 to distinguishedName. 
+                   AddressFamilyNumbers assignment 18 to asNumber."
+
+      REVISION     "200002040000Z"  -- February 4, 2000
+      DESCRIPTION  "AddressFamilyNumbers assignment 16 to dns."
+
+      REVISION     "9908260000Z"  -- August 26, 1999
+      DESCRIPTION  "Initial version, published as RFC 2677."
+
+      ::= { mib-2 72 }
+
+
+  AddressFamilyNumbers ::= TEXTUAL-CONVENTION
+
+      STATUS       current
+      DESCRIPTION
+          "The definition of this textual convention with the
+          addition of newly assigned values is published
+          periodically by the IANA, in either the Assigned
+          Numbers RFC, or some derivative of it specific to
+          Internet Network Management number assignments.
+          (The latest arrangements can be obtained by
+          contacting the IANA.)
+
+          The enumerations are described as:
+
+          other(0),    -- none of the following
+          ipV4(1),     -- IP Version 4
+          ipV6(2),     -- IP Version 6
+          nsap(3),     -- NSAP
+          hdlc(4),     -- (8-bit multidrop)
+          bbn1822(5),
+          all802(6),   -- (includes all 802 media
+                       --   plus Ethernet 'canonical format')
+          e163(7),
+          e164(8),     -- (SMDS, Frame Relay, ATM)
+          f69(9),      -- (Telex)
+          x121(10),    -- (X.25, Frame Relay)
+          ipx(11),     -- IPX (Internet Protocol Exchange)
+          appleTalk(12),  -- Apple Talk
+          decnetIV(13),   -- DEC Net Phase IV
+          banyanVines(14),  -- Banyan Vines
+          e164withNsap(15),
+                       -- (E.164 with NSAP format subaddress)
+          dns(16),     -- (Domain Name System)
+          distinguishedName(17), -- (Distinguished Name, per X.500)
+          asNumber(18), -- (16-bit quantity, per the AS number space)
+          xtpOverIpv4(19),  -- XTP over IP version 4
+          xtpOverIpv6(20),  -- XTP over IP version 6
+          xtpNativeModeXTP(21),  -- XTP native mode XTP
+          fibreChannelWWPN(22),  -- Fibre Channel World-Wide Port Name 
+          fibreChannelWWNN(23),  -- Fibre Channel World-Wide Node Name
+          gwid(24),    -- Gateway Identifier 
+          afi(25),  -- AFI for L2VPN information
+          reserved(65535)
+
+
+
+          Requests for new values should be made to IANA via
+          email (iana&iana.org)."
+
+      SYNTAX  INTEGER {
+                  other(0),
+                  ipV4(1),
+                  ipV6(2),
+                  nsap(3),
+                  hdlc(4),
+                  bbn1822(5),
+                  all802(6),
+                  e163(7),
+                  e164(8),
+                  f69(9),
+                  x121(10),
+                  ipx(11),
+                  appleTalk(12),
+                  decnetIV(13),
+                  banyanVines(14),
+                  e164withNsap(15),
+                  dns(16),
+                  distinguishedName(17), -- (Distinguished Name, per X.500)
+                  asNumber(18), -- (16-bit quantity, per the AS number space)
+                  xtpOverIpv4(19),
+                  xtpOverIpv6(20),
+                  xtpNativeModeXTP(21),
+                  fibreChannelWWPN(22),
+                  fibreChannelWWNN(23),
+                  gwid(24),
+                  afi(25),
+                  reserved(65535)
+              }
+      END

src/apps/snmp/LwipMibCompiler/Mibs/IANA-CHARSET-MIB

@@ -0,0 +1,345 @@
+IANA-CHARSET-MIB DEFINITIONS ::= BEGIN
+--  http://www.iana.org/assignments/ianacharset-mib
+
+IMPORTS
+    MODULE-IDENTITY,
+        mib-2
+            FROM SNMPv2-SMI                              -- [RFC2578]
+    TEXTUAL-CONVENTION
+            FROM SNMPv2-TC;                              -- [RFC2579]
+
+ianaCharsetMIB MODULE-IDENTITY
+    LAST-UPDATED    "200705140000Z"
+    ORGANIZATION    "IANA"
+    CONTACT-INFO    "       Internet Assigned Numbers Authority
+
+                    Postal: ICANN
+                            4676 Admiralty Way, Suite 330
+                            Marina del Rey, CA 90292
+
+                    Tel:    +1 310 823 9358
+                    E-Mail: iana&iana.org"
+
+    DESCRIPTION     "This MIB module defines the IANACharset
+                    TEXTUAL-CONVENTION.  The IANACharset TC is used to
+                    specify the encoding of string objects defined in
+                    a MIB.
+
+                    Each version of this MIB will be released based on
+                    the IANA Charset Registry file (see RFC 2978) at
+                    http://www.iana.org/assignments/character-sets.
+
+                    Note:  The IANACharset TC, originally defined in
+                    RFC 1759, was inaccurately named CodedCharSet.
+
+                    Note:  Best practice is to define new MIB string
+                    objects with invariant UTF-8 (RFC 3629) syntax
+                    using the SnmpAdminString TC (defined in RFC 3411)
+                    in accordance with IETF Policy on Character Sets and
+                    Languages (RFC 2277).
+
+                    Copyright (C) The Internet Society (2004).  The
+                    initial version of this MIB module was published
+                    in RFC 3808; for full legal notices see the RFC
+                    itself.  Supplementary information may be
+                    available on
+                    http://www.ietf.org/copyrights/ianamib.html."
+
+    --  revision history
+    
+    REVISION        "200705140000Z"
+    DESCRIPTION     "Registration of new charset 2107."
+
+    REVISION        "200612070000Z"
+    DESCRIPTION     "Registration of new charsets numbered 118, 119, 
+                    and 2106."
+
+    REVISION        "200406080000Z"
+    DESCRIPTION     "Original version transferred from Printer MIB,
+                    generated from the IANA maintained assignments
+                    http://www.iana.org/assignments/character-sets."
+
+    ::= { mib-2 106 }
+
+IANACharset ::= TEXTUAL-CONVENTION
+    STATUS  current
+    DESCRIPTION
+        "Specifies an IANA registered 'charset' - coded character set
+        (CCS) plus optional character encoding scheme (CES) - terms
+        defined in 'IANA Charset Registration Procedures' (RFC 2978).
+
+        Objects of this syntax are used to specify the encoding for
+        string objects defined in one or more MIBs.  For example, the
+        prtLocalizationCharacterSet, prtInterpreterDefaultCharSetIn, and
+        prtInterpreterDefaultCharSetOut objects defined in Printer MIB.
+
+        The current list of 'charset' names and enumerated values
+        is contained in the IANA Character Set Registry at:
+
+           http://www.iana.org/assignments/character-sets
+
+        Enum names are derived from the IANA Charset Registry 'Alias'
+        fields that begin with 'cs' (for character set).
+        Enum values are derived from the parallel 'MIBenum' fields."
+    SYNTAX  INTEGER {
+        other(1),   -- used if the designated
+                    -- character set is not currently
+                    -- registered by IANA
+        unknown(2), -- used as a default value
+        csASCII(3),
+        csISOLatin1(4),
+        csISOLatin2(5),
+        csISOLatin3(6),
+        csISOLatin4(7),
+        csISOLatinCyrillic(8),
+        csISOLatinArabic(9),
+        csISOLatinGreek(10),
+        csISOLatinHebrew(11),
+        csISOLatin5(12),
+        csISOLatin6(13),
+        csISOTextComm(14),
+        csHalfWidthKatakana(15),
+        csJISEncoding(16),
+        csShiftJIS(17),
+        csEUCPkdFmtJapanese(18),
+        csEUCFixWidJapanese(19),
+        csISO4UnitedKingdom(20),
+        csISO11SwedishForNames(21),
+        csISO15Italian(22),
+        csISO17Spanish(23),
+        csISO21German(24),
+        csISO60DanishNorwegian(25),
+        csISO69French(26),
+        csISO10646UTF1(27),
+        csISO646basic1983(28),
+        csINVARIANT(29),
+        csISO2IntlRefVersion(30),
+        csNATSSEFI(31),
+        csNATSSEFIADD(32),
+        csNATSDANO(33),
+        csNATSDANOADD(34),
+        csISO10Swedish(35),
+        csKSC56011987(36),
+        csISO2022KR(37),
+        csEUCKR(38),
+        csISO2022JP(39),
+        csISO2022JP2(40),
+        csISO13JISC6220jp(41),
+        csISO14JISC6220ro(42),
+        csISO16Portuguese(43),
+        csISO18Greek7Old(44),
+        csISO19LatinGreek(45),
+        csISO25French(46),
+        csISO27LatinGreek1(47),
+        csISO5427Cyrillic(48),
+        csISO42JISC62261978(49),
+        csISO47BSViewdata(50),
+        csISO49INIS(51),
+        csISO50INIS8(52),
+        csISO51INISCyrillic(53),
+        csISO54271981(54),
+        csISO5428Greek(55),
+        csISO57GB1988(56),
+        csISO58GB231280(57),
+        csISO61Norwegian2(58),
+        csISO70VideotexSupp1(59),
+        csISO84Portuguese2(60),
+        csISO85Spanish2(61),
+        csISO86Hungarian(62),
+        csISO87JISX0208(63),
+        csISO88Greek7(64),
+        csISO89ASMO449(65),
+        csISO90(66),
+        csISO91JISC62291984a(67),
+        csISO92JISC62991984b(68),
+        csISO93JIS62291984badd(69),
+        csISO94JIS62291984hand(70),
+        csISO95JIS62291984handadd(71),
+        csISO96JISC62291984kana(72),
+        csISO2033(73),
+        csISO99NAPLPS(74),
+        csISO102T617bit(75),
+        csISO103T618bit(76),
+        csISO111ECMACyrillic(77),
+        csa71(78),
+        csa72(79),
+        csISO123CSAZ24341985gr(80),
+        csISO88596E(81),
+        csISO88596I(82),
+        csISO128T101G2(83),
+        csISO88598E(84),
+        csISO88598I(85),
+        csISO139CSN369103(86),
+        csISO141JUSIB1002(87),
+        csISO143IECP271(88),
+        csISO146Serbian(89),
+        csISO147Macedonian(90),
+        csISO150(91),
+        csISO151Cuba(92),
+        csISO6937Add(93),
+        csISO153GOST1976874(94),
+        csISO8859Supp(95),
+        csISO10367Box(96),
+        csISO158Lap(97),
+        csISO159JISX02121990(98),
+        csISO646Danish(99),
+        csUSDK(100),
+        csDKUS(101),
+        csKSC5636(102),
+        csUnicode11UTF7(103),
+        csISO2022CN(104),
+        csISO2022CNEXT(105),
+        csUTF8(106),
+        csISO885913(109),
+        csISO885914(110),
+        csISO885915(111),
+        csISO885916(112),
+        csGBK(113),
+        csGB18030(114),
+        csOSDEBCDICDF0415(115),
+        csOSDEBCDICDF03IRV(116),
+        csOSDEBCDICDF041(117),
+        csISO115481(118),
+        csKZ1048(119),
+        csUnicode(1000),
+        csUCS4(1001),
+        csUnicodeASCII(1002),
+        csUnicodeLatin1(1003),
+        csUnicodeIBM1261(1005),
+        csUnicodeIBM1268(1006),
+        csUnicodeIBM1276(1007),
+        csUnicodeIBM1264(1008),
+        csUnicodeIBM1265(1009),
+        csUnicode11(1010),
+        csSCSU(1011),
+        csUTF7(1012),
+        csUTF16BE(1013),
+        csUTF16LE(1014),
+        csUTF16(1015),
+        csCESU8(1016),
+        csUTF32(1017),
+        csUTF32BE(1018),
+        csUTF32LE(1019),
+        csBOCU1(1020),
+        csWindows30Latin1(2000),
+        csWindows31Latin1(2001),
+        csWindows31Latin2(2002),
+        csWindows31Latin5(2003),
+        csHPRoman8(2004),
+        csAdobeStandardEncoding(2005),
+        csVenturaUS(2006),
+        csVenturaInternational(2007),
+        csDECMCS(2008),
+        csPC850Multilingual(2009),
+        csPCp852(2010),
+        csPC8CodePage437(2011),
+        csPC8DanishNorwegian(2012),
+        csPC862LatinHebrew(2013),
+        csPC8Turkish(2014),
+        csIBMSymbols(2015),
+        csIBMThai(2016),
+        csHPLegal(2017),
+        csHPPiFont(2018),
+        csHPMath8(2019),
+        csHPPSMath(2020),
+        csHPDesktop(2021),
+        csVenturaMath(2022),
+        csMicrosoftPublishing(2023),
+        csWindows31J(2024),
+        csGB2312(2025),
+        csBig5(2026),
+        csMacintosh(2027),
+        csIBM037(2028),
+        csIBM038(2029),
+        csIBM273(2030),
+        csIBM274(2031),
+        csIBM275(2032),
+        csIBM277(2033),
+        csIBM278(2034),
+        csIBM280(2035),
+        csIBM281(2036),
+        csIBM284(2037),
+        csIBM285(2038),
+        csIBM290(2039),
+        csIBM297(2040),
+        csIBM420(2041),
+        csIBM423(2042),
+        csIBM424(2043),
+        csIBM500(2044),
+        csIBM851(2045),
+        csIBM855(2046),
+        csIBM857(2047),
+        csIBM860(2048),
+        csIBM861(2049),
+        csIBM863(2050),
+        csIBM864(2051),
+        csIBM865(2052),
+        csIBM868(2053),
+        csIBM869(2054),
+        csIBM870(2055),
+        csIBM871(2056),
+        csIBM880(2057),
+        csIBM891(2058),
+        csIBM903(2059),
+        csIBBM904(2060),
+        csIBM905(2061),
+        csIBM918(2062),
+        csIBM1026(2063),
+        csIBMEBCDICATDE(2064),
+        csEBCDICATDEA(2065),
+        csEBCDICCAFR(2066),
+        csEBCDICDKNO(2067),
+        csEBCDICDKNOA(2068),
+        csEBCDICFISE(2069),
+        csEBCDICFISEA(2070),
+        csEBCDICFR(2071),
+        csEBCDICIT(2072),
+        csEBCDICPT(2073),
+        csEBCDICES(2074),
+        csEBCDICESA(2075),
+        csEBCDICESS(2076),
+        csEBCDICUK(2077),
+        csEBCDICUS(2078),
+        csUnknown8BiT(2079),
+        csMnemonic(2080),
+        csMnem(2081),
+        csVISCII(2082),
+        csVIQR(2083),
+        csKOI8R(2084),
+        csHZGB2312(2085),
+        csIBM866(2086),
+        csPC775Baltic(2087),
+        csKOI8U(2088),
+        csIBM00858(2089),
+        csIBM00924(2090),
+        csIBM01140(2091),
+        csIBM01141(2092),
+        csIBM01142(2093),
+        csIBM01143(2094),
+        csIBM01144(2095),
+        csIBM01145(2096),
+        csIBM01146(2097),
+        csIBM01147(2098),
+        csIBM01148(2099),
+        csIBM01149(2100),
+        csBig5HKSCS(2101),
+        csIBM1047(2102),
+        csPTCP154(2103),
+        csAmiga1251(2104),
+        csKOI7switched(2105),
+        csBRF(2106),
+        csTSCII(2107),
+        cswindows1250(2250),
+        cswindows1251(2251),
+        cswindows1252(2252),
+        cswindows1253(2253),
+        cswindows1254(2254),
+        cswindows1255(2255),
+        cswindows1256(2256),
+        cswindows1257(2257),
+        cswindows1258(2258),
+        csTIS620(2259),
+        reserved(3000)
+    }
+END
+

src/apps/snmp/LwipMibCompiler/Mibs/IANA/IANA-ITU-ALARM-TC-MIB

@@ -0,0 +1,333 @@
+IANA-ITU-ALARM-TC-MIB DEFINITIONS ::= BEGIN
+
+   IMPORTS
+      MODULE-IDENTITY, mib-2       FROM SNMPv2-SMI
+      TEXTUAL-CONVENTION           FROM SNMPv2-TC;
+
+    ianaItuAlarmNumbers MODULE-IDENTITY
+        LAST-UPDATED "200409090000Z"  -- September 09, 2004
+        ORGANIZATION "IANA"
+        CONTACT-INFO
+            "Postal:    Internet Assigned Numbers Authority
+                        Internet Corporation for Assigned Names
+                        and Numbers
+                        4676 Admiralty Way, Suite 330
+                        Marina del Rey, CA 90292-6601
+                        USA
+
+            Tel:    +1  310-823-9358
+            E-Mail: iana&iana.org"
+        DESCRIPTION
+            "The MIB module defines the ITU Alarm
+            textual convention for objects expected to require
+            regular extension.
+
+            Copyright (C) The Internet Society (2004).  The
+            initial version of this MIB module was published
+            in RFC 3877. For full legal notices see the RFC
+            itself. Supplementary information may be available on:
+                 http://www.ietf.org/copyrights/ianamib.html"
+         REVISION    "200409090000Z"
+         DESCRIPTION
+             "Initial version, published as RFC 3877."
+        ::= { mib-2 119 } 
+
+
+   IANAItuProbableCause ::= TEXTUAL-CONVENTION
+       STATUS current
+       DESCRIPTION
+           "ITU-T probable cause values. Duplicate values defined in
+            X.733 are appended with X733 to ensure syntactic uniqueness.
+            Probable cause value 0 is reserved for special purposes.
+
+            The Internet Assigned Number Authority (IANA) is responsible
+            for the assignment of the enumerations in this TC.
+            IANAItuProbableCause value of 0 is reserved for special
+            purposes and MUST NOT be assigned.
+
+            Values of IANAItuProbableCause in the range 1 to 1023 are
+            reserved for causes that correspond to ITU-T probable cause.
+
+            All other requests for new causes will be handled on a
+            first-come, first served basis and will be assigned
+            enumeration values starting with 1025.
+
+            Request should  come in the form of well-formed
+            SMI [RFC2578] for enumeration names that are unique and
+            sufficiently descriptive.
+
+            While some effort will be taken to ensure that new probable
+            causes do not conceptually duplicate existing probable
+            causes it is acknowledged that the existence of conceptual
+            duplicates in the starting probable cause list is an known
+            industry reality.
+
+            To aid IANA in the administration of probable cause names
+            and values, the OPS Area Director will appoint one or more
+            experts to help review requests.
+
+            See http://www.iana.org"
+       REFERENCE
+           "ITU Recommendation M.3100, 'Generic Network Information
+               Model', 1995
+            ITU Recommendation X.733, 'Information Technology - Open
+               Systems Interconnection - System Management: Alarm
+               Reporting Function', 1992
+            ITU Recommendation X.736, 'Information Technology - Open
+               Systems Interconnection - System Management: Security
+               Alarm Reporting Function', 1992"
+
+       SYNTAX         INTEGER
+               {
+               -- The following probable causes were defined in M.3100
+                aIS  (1),
+                callSetUpFailure  (2),
+                degradedSignal  (3),
+                farEndReceiverFailure  (4),
+                framingError  (5),
+                lossOfFrame (6),
+                lossOfPointer  (7),
+                lossOfSignal  (8),
+                payloadTypeMismatch (9),
+                transmissionError (10),
+                remoteAlarmInterface (11),
+                excessiveBER  (12),
+                pathTraceMismatch  (13),
+                unavailable  (14),
+                signalLabelMismatch (15),
+                lossOfMultiFrame (16),
+                receiveFailure (17),
+                transmitFailure (18),
+                modulationFailure (19),
+                demodulationFailure (20),
+                broadcastChannelFailure (21),
+                connectionEstablishmentError (22),
+                invalidMessageReceived (23),
+                localNodeTransmissionError (24),
+                remoteNodeTransmissionError (25),
+                routingFailure (26),
+    --Values 27-50 are reserved for communications alarm related
+    --probable causes
+    -- The following are used with equipment alarm.
+                backplaneFailure (51),
+                dataSetProblem  (52),
+                equipmentIdentifierDuplication  (53),
+                externalIFDeviceProblem  (54),
+                lineCardProblem (55),
+                multiplexerProblem  (56),
+                nEIdentifierDuplication  (57),
+                powerProblem  (58),
+                processorProblem  (59),
+                protectionPathFailure  (60),
+                receiverFailure  (61),
+                replaceableUnitMissing  (62),
+                replaceableUnitTypeMismatch (63),
+                synchronizationSourceMismatch  (64),
+                terminalProblem   (65),
+                timingProblem   (66),
+                transmitterFailure  (67),
+                trunkCardProblem  (68),
+                replaceableUnitProblem  (69),
+                realTimeClockFailure (70),
+    --An equipment alarm to be issued if the system detects that the
+    --real time clock has failed
+                antennaFailure (71),
+                batteryChargingFailure (72),
+                diskFailure (73),
+                frequencyHoppingFailure (74),
+                iODeviceError (75),
+                lossOfSynchronisation (76),
+                lossOfRedundancy (77),
+                powerSupplyFailure (78),
+                signalQualityEvaluationFailure (79),
+                tranceiverFailure (80),
+                protectionMechanismFailure (81),
+                protectingResourceFailure (82),
+    -- Values 83-100 are reserved for equipment alarm related probable
+    -- causes
+    -- The following are used with environmental alarm.
+                airCompressorFailure  (101),
+                airConditioningFailure  (102),
+                airDryerFailure   (103),
+                batteryDischarging  (104),
+                batteryFailure   (105),
+                commercialPowerFailure  (106),
+                coolingFanFailure  (107),
+                engineFailure  (108),
+                fireDetectorFailure  (109),
+                fuseFailure  (110),
+                generatorFailure  (111),
+                lowBatteryThreshold (112),
+                pumpFailure  (113),
+                rectifierFailure  (114),
+                rectifierHighVoltage  (115),
+                rectifierLowFVoltage  (116),
+                ventilationsSystemFailure  (117),
+                enclosureDoorOpen  (118),
+                explosiveGas  (119),
+                fire (120),
+                flood   (121),
+                highHumidity  (122),
+                highTemperature  (123),
+                highWind  (124),
+                iceBuildUp  (125),
+                intrusionDetection  (126),
+                lowFuel  (127),
+                lowHumidity  (128),
+                lowCablePressure  (129),
+                lowTemperatue  (130),
+                lowWater  (131),
+                smoke  (132),
+                toxicGas  (133),
+                coolingSystemFailure (134),
+                externalEquipmentFailure (135),
+                externalPointFailure (136),
+    -- Values 137-150 are reserved for environmental alarm related
+    -- probable causes
+    -- The following are used with Processing error alarm.
+                storageCapacityProblem (151),
+                memoryMismatch  (152),
+                corruptData  (153),
+                outOfCPUCycles   (154),
+                sfwrEnvironmentProblem  (155),
+                sfwrDownloadFailure  (156),
+                lossOfRealTimel (157),
+    --A processing error alarm to be issued after the system has
+    --reinitialised. This will indicate
+    --to the management systems that the view they have of the managed
+    --system may no longer
+    --be valid. Usage example: The managed
+    --system issues this alarm after a reinitialization with severity
+    --warning to inform the
+    --management system about the event. No clearing notification will
+    --be sent.
+                applicationSubsystemFailure (158),
+                configurationOrCustomisationError (159),
+                databaseInconsistency (160),
+                fileError (161),
+                outOfMemory (162),
+                softwareError (163),
+                timeoutExpired (164),
+                underlayingResourceUnavailable (165),
+                versionMismatch (166),
+    --Values 168-200 are reserved for processing error alarm related
+    -- probable causes.
+                bandwidthReduced (201),
+                congestion (202),
+                excessiveErrorRate (203),
+                excessiveResponseTime (204),
+                excessiveRetransmissionRate (205),
+                reducedLoggingCapability (206),
+                systemResourcesOverload (207 ),
+                -- The following were defined X.733
+                adapterError (500),
+                applicationSubsystemFailture (501),
+                bandwidthReducedX733 (502),
+                callEstablishmentError (503),
+                communicationsProtocolError (504),
+                communicationsSubsystemFailure (505),
+                configurationOrCustomizationError (506),
+                congestionX733 (507),
+                coruptData (508),
+                cpuCyclesLimitExceeded (509),
+                dataSetOrModemError (510),
+                degradedSignalX733 (511),
+                dteDceInterfaceError (512),
+                enclosureDoorOpenX733 (513),
+                equipmentMalfunction (514),
+                excessiveVibration (515),
+                fileErrorX733 (516),
+                fireDetected (517),
+                framingErrorX733 (518),
+                heatingVentCoolingSystemProblem (519),
+                humidityUnacceptable (520),
+                inputOutputDeviceError (521),
+                inputDeviceError (522),
+                lanError (523),
+                leakDetected (524),
+                localNodeTransmissionErrorX733 (525),
+                lossOfFrameX733 (526),
+                lossOfSignalX733 (527),
+                materialSupplyExhausted (528),
+                multiplexerProblemX733 (529),
+                outOfMemoryX733 (530),
+                ouputDeviceError (531),
+                performanceDegraded (532),
+                powerProblems (533),
+                pressureUnacceptable (534),
+                processorProblems (535),
+                pumpFailureX733 (536),
+                queueSizeExceeded (537),
+                receiveFailureX733 (538),
+                receiverFailureX733 (539),
+                remoteNodeTransmissionErrorX733 (540),
+                resourceAtOrNearingCapacity (541),
+                responseTimeExecessive (542),
+                retransmissionRateExcessive (543),
+                softwareErrorX733 (544),
+                softwareProgramAbnormallyTerminated (545),
+                softwareProgramError (546),
+                storageCapacityProblemX733 (547),
+                temperatureUnacceptable (548),
+                thresholdCrossed (549),
+                timingProblemX733 (550),
+                toxicLeakDetected (551),
+                transmitFailureX733 (552),
+                transmiterFailure (553),
+                underlyingResourceUnavailable (554),
+                versionMismatchX733 (555),
+                -- The following are defined in X.736
+                authenticationFailure (600),
+                breachOfConfidentiality (601),
+                cableTamper (602),
+                delayedInformation (603),
+                denialOfService (604),
+                duplicateInformation (605),
+                informationMissing (606),
+                informationModificationDetected (607),
+                informationOutOfSequence (608),
+                keyExpired (609),
+                nonRepudiationFailure (610),
+                outOfHoursActivity (611),
+                outOfService (612),
+                proceduralError (613),
+                unauthorizedAccessAttempt (614),
+                unexpectedInformation (615),
+
+                other (1024)
+                }
+
+   IANAItuEventType ::= TEXTUAL-CONVENTION
+       STATUS current
+       DESCRIPTION
+               "The ITU event Type values.
+
+               The Internet Assigned Number Authority (IANA) is
+               responsible for the assignment of the enumerations
+               in this TC.
+
+               Request should  come in the form of well-formed
+               SMI [RFC2578] for enumeration names that are unique
+               and sufficiently descriptive.
+
+               See http://www.iana.org "
+       REFERENCE
+              "ITU Recommendation X.736, 'Information Technology - Open
+               Systems Interconnection - System Management: Security
+               Alarm Reporting Function', 1992"
+       SYNTAX         INTEGER
+              {
+              other (1),
+              communicationsAlarm (2),
+              qualityOfServiceAlarm (3),
+              processingErrorAlarm (4),
+              equipmentAlarm (5),
+              environmentalAlarm (6),
+              integrityViolation (7),
+              operationalViolation (8),
+              physicalViolation (9),
+              securityServiceOrMechanismViolation (10),
+              timeDomainViolation (11)
+              }
+
+   END

src/apps/snmp/LwipMibCompiler/Mibs/IANA/IANA-LANGUAGE-MIB

@@ -0,0 +1,127 @@
+
+   IANA-LANGUAGE-MIB DEFINITIONS ::= BEGIN
+
+   IMPORTS
+       MODULE-IDENTITY, OBJECT-IDENTITY, mib-2
+           FROM SNMPv2-SMI;
+
+   ianaLanguages MODULE-IDENTITY
+       LAST-UPDATED "200005100000Z"  -- May 10, 2000
+       ORGANIZATION "IANA"
+       CONTACT-INFO
+           "Internet Assigned Numbers Authority (IANA)
+
+            Postal: ICANN
+                    4676 Admiralty Way, Suite 330
+                    Marina del Rey, CA 90292
+
+            Tel:    +1 310 823 9358 x20
+            E-Mail: iana&iana.org"
+       DESCRIPTION
+           "The MIB module registers object identifier values for
+            well-known programming and scripting languages. Every
+            language registration MUST describe the format used
+            when transferring scripts written in this language.
+
+            Any additions or changes to the contents of this MIB
+            module require Designated Expert Review as defined in
+            the Guidelines for Writing IANA Considerations Section
+            document. The Designated Expert will be selected by
+            the IESG Area Director of the OPS Area.
+
+            Note, this module does not have to register all possible
+            languages since languages are identified by object
+            identifier values. It is therefore possible to registered 
+            languages in private OID trees. The references given below are not
+            normative with regard to the language version. Other
+            references might be better suited to describe some newer 
+            versions of this language. The references are only
+            provided as `a pointer into the right direction'."
+
+    -- Revision log, in reverse chronological order
+
+       REVISION    "200005100000Z" -- May 10, 2000
+       DESCRIPTION "Import mib-2 instead of experimental, so that
+                    this module compiles"
+
+       REVISION    "199909090900Z" -- September 9, 1999
+       DESCRIPTION "Initial version as published at time of
+                    publication of RFC 2591."
+
+       ::= { mib-2 73 }
+
+
+   ianaLangJavaByteCode OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "Java byte code to be processed by a Java virtual machine.
+            A script written in Java byte code is transferred by using
+            the Java archive file format (JAR)."
+       REFERENCE
+           "The Java Virtual Machine Specification.
+            ISBN 0-201-63452-X"
+       ::= { ianaLanguages 1 }
+
+   ianaLangTcl OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "The Tool Command Language (Tcl). A script written in the
+            Tcl language is transferred in Tcl source code format."
+       REFERENCE
+           "Tcl and the Tk Toolkit.
+            ISBN 0-201-63337-X"
+       ::= { ianaLanguages 2 }
+
+   ianaLangPerl OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "The Perl language. A script written in the Perl language
+            is transferred in Perl source code format."
+       REFERENCE
+           "Programming Perl.
+            ISBN 1-56592-149-6"
+       ::= { ianaLanguages 3 }
+
+   ianaLangScheme OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "The Scheme language. A script written in the Scheme
+            language is transferred in Scheme source code format."
+       REFERENCE
+           "The Revised^4 Report on the Algorithmic Language Scheme.
+            MIT Press"
+       ::= { ianaLanguages 4 }
+
+   ianaLangSRSL OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "The SNMP Script Language defined by SNMP Research. A
+            script written in the SNMP Script Language is transferred
+            in the SNMP Script Language source code format."
+       ::= { ianaLanguages 5 }
+
+   ianaLangPSL OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "The Patrol Script Language defined by BMC Software. A script
+            written in the Patrol Script Language is transferred in the
+            Patrol Script Language source code format."
+       REFERENCE
+           "PATROL Script Language Reference Manual, Version 3.0,
+            November 30, 1995. BMC Software, Inc. 2101 City West Blvd.,
+            Houston, Texas 77042."
+       ::= { ianaLanguages 6 }
+
+   ianaLangSMSL OBJECT-IDENTITY
+       STATUS  current
+       DESCRIPTION
+           "The Systems Management Scripting Language. A script written
+            in the SMSL language is transferred in the SMSL source code
+            format."
+       REFERENCE
+           "ISO/ITU Command Sequencer.
+            ISO 10164-21 or ITU X.753"
+       ::= { ianaLanguages 7 }
+
+   END
+

src/apps/snmp/LwipMibCompiler/Mibs/IANA/IANA-MALLOC-MIB

@@ -0,0 +1,67 @@
+
+IANA-MALLOC-MIB DEFINITIONS ::= BEGIN
+
+IMPORTS
+    MODULE-IDENTITY, mib-2           FROM SNMPv2-SMI
+    TEXTUAL-CONVENTION               FROM SNMPv2-TC;
+
+ianaMallocMIB MODULE-IDENTITY
+    LAST-UPDATED "200301271200Z" -- January 27, 2003
+    ORGANIZATION "IANA"
+    CONTACT-INFO
+            " Internet Assigned Numbers Authority
+              Internet Corporation for Assigned Names and Numbers
+              4676 Admiralty Way, Suite 330
+              Marina del Rey, CA 90292-6601
+
+              Phone: +1 310 823 9358
+              EMail: iana&iana.org"
+    DESCRIPTION
+            "This MIB module defines the IANAscopeSource and
+            IANAmallocRangeSource textual conventions for use in MIBs
+            which need to identify ways of learning multicast scope and
+            range information.
+
+            Any additions or changes to the contents of this MIB module
+            require either publication of an RFC, or Designated Expert
+            Review as defined in the Guidelines for Writing IANA
+            Considerations Section document.  The Designated Expert will
+            be selected by the IESG Area Director(s) of the Transport
+            Area."
+
+    -- revision log
+
+    REVISION     "200301271200Z" -- January 27, 2003
+    DESCRIPTION
+            "Initial version."
+    ::= { mib-2 102 } 
+
+IANAscopeSource ::= TEXTUAL-CONVENTION
+   STATUS  current
+   DESCRIPTION
+            "The source of multicast scope information."
+   SYNTAX  INTEGER {
+              other(1),  -- none of the following
+              manual(2), -- statically configured
+              local(3),  -- automatically added by the system,
+                         -- such as a Source-Specific Multicast
+                         -- scope
+              mzap(4),   -- MZAP
+              madcap(5)  -- MADCAP
+           }
+
+IANAmallocRangeSource ::= TEXTUAL-CONVENTION
+   STATUS  current
+   DESCRIPTION
+            "The source of multicast address allocation range
+            information."
+   SYNTAX  INTEGER {
+              other(1),  -- none of the following
+              manual(2), -- statically configured
+              local(3)   -- automatically added by the system,
+                         -- such as a Source-Specific Multicast
+                         -- range
+           }
+
+END
+

src/apps/snmp/LwipMibCompiler/Mibs/IANA/IANA-MAU-MIB

@@ -0,0 +1,770 @@
+IANA-MAU-MIB DEFINITIONS ::= BEGIN
+
+     IMPORTS
+       MODULE-IDENTITY, OBJECT-IDENTITY, mib-2
+         FROM SNMPv2-SMI
+       TEXTUAL-CONVENTION
+         FROM SNMPv2-TC
+       ;
+
+     ianaMauMIB MODULE-IDENTITY
+       LAST-UPDATED "200704210000Z"  -- April 21, 2007
+       ORGANIZATION "IANA"
+       CONTACT-INFO "        Internet Assigned Numbers Authority
+
+                     Postal: ICANN
+                             4676 Admiralty Way, Suite 330
+                             Marina del Rey, CA 90292
+
+                        Tel: +1-310-823-9358
+                      EMail: iana&iana.org"
+
+       DESCRIPTION
+         "This MIB module defines dot3MauType OBJECT-IDENTITIES and
+         IANAifMauListBits, IANAifMauMediaAvailable,
+         IANAifMauAutoNegCapBits, and IANAifJackType
+
+         TEXTUAL-CONVENTIONs, specifying enumerated values of the
+         ifMauTypeListBits, ifMauMediaAvailable / rpMauMediaAvailable,
+         ifMauAutoNegCapabilityBits / ifMauAutoNegCapAdvertisedBits /
+         ifMauAutoNegCapReceivedBits and ifJackType / rpJackType objects
+         respectively, defined in the MAU-MIB.
+
+         It is intended that each new MAU type, Media Availability
+         state, Auto Negotiation capability and/or Jack type defined by
+         the IEEE 802.3 working group and approved for publication in a
+         revision of IEEE Std 802.3 will be added to this MIB module,
+         provided that it is suitable for being managed by the base
+         objects in the MAU-MIB.  An Expert Review, as defined in
+         RFC 2434 [RFC2434], is REQUIRED for such additions.
+
+         The following reference is used throughout this MIB module:
+
+         [IEEE802.3] refers to:
+            IEEE Std 802.3, 2005 Edition: 'IEEE Standard for
+            Information technology - Telecommunications and information
+            exchange between systems - Local and metropolitan area
+            networks - Specific requirements -
+            Part 3: Carrier sense multiple access with collision
+            detection (CSMA/CD) access method and physical layer
+            specifications'.
+
+         This reference should be updated as appropriate when new
+         MAU types, Media Availability states, Auto Negotiation
+         capabilities, and/or Jack types are added to this MIB module.
+
+         Copyright (C) The IETF Trust (2007).
+         The initial version of this MIB module was published in
+         RFC 4836; for full legal notices see the RFC itself.
+         Supplementary information may be available at:
+         http://www.ietf.org/copyrights/ianamib.html"
+
+       REVISION     "200704210000Z"  -- April 21, 2007
+       DESCRIPTION  "Initial version of this MIB as published in
+                     RFC 4836."
+       ::= { mib-2 154 }
+
+     -- Textual Conventions
+
+     IANAifMauTypeListBits ::= TEXTUAL-CONVENTION
+       STATUS       current
+       DESCRIPTION
+         "This data type is used as the syntax of the ifMauTypeListBits
+         object in the (updated) definition of MAU-MIB's ifMauTable.
+
+         The most recent version of this textual convention is available
+         in the online version of this MIB module on the IANA web site.
+
+         Requests for new values should be made to IANA via email
+         (iana&iana.org).
+
+         Note that changes in this textual convention SHALL be
+         synchronized with relevant changes in the dot3MauType
+         OBJECT-IDENTITIES."
+       REFERENCE
+         "[IEEE802.3], Section 30.5.1.1.2"
+       SYNTAX       BITS {
+              bOther(0),          -- other or unknown
+              bAUI(1),            -- AUI
+              b10base5(2),        -- 10BASE-5
+              bFoirl(3),          -- FOIRL
+
+              b10base2(4),        -- 10BASE-2
+              b10baseT(5),        -- 10BASE-T duplex mode unknown
+              b10baseFP(6),       -- 10BASE-FP
+              b10baseFB(7),       -- 10BASE-FB
+              b10baseFL(8),       -- 10BASE-FL duplex mode unknown
+              b10broad36(9),      -- 10BROAD36
+              b10baseTHD(10),     -- 10BASE-T  half duplex mode
+              b10baseTFD(11),     -- 10BASE-T  full duplex mode
+              b10baseFLHD(12),    -- 10BASE-FL half duplex mode
+              b10baseFLFD(13),    -- 10BASE-FL full duplex mode
+              b100baseT4(14),     -- 100BASE-T4
+              b100baseTXHD(15),   -- 100BASE-TX half duplex mode
+              b100baseTXFD(16),   -- 100BASE-TX full duplex mode
+              b100baseFXHD(17),   -- 100BASE-FX half duplex mode
+              b100baseFXFD(18),   -- 100BASE-FX full duplex mode
+              b100baseT2HD(19),   -- 100BASE-T2 half duplex mode
+              b100baseT2FD(20),   -- 100BASE-T2 full duplex mode
+
+              b1000baseXHD(21),   -- 1000BASE-X half duplex mode
+              b1000baseXFD(22),   -- 1000BASE-X full duplex mode
+              b1000baseLXHD(23),  -- 1000BASE-LX half duplex mode
+              b1000baseLXFD(24),  -- 1000BASE-LX full duplex mode
+              b1000baseSXHD(25),  -- 1000BASE-SX half duplex mode
+              b1000baseSXFD(26),  -- 1000BASE-SX full duplex mode
+              b1000baseCXHD(27),  -- 1000BASE-CX half duplex mode
+              b1000baseCXFD(28),  -- 1000BASE-CX full duplex mode
+              b1000baseTHD(29),   -- 1000BASE-T half duplex mode
+              b1000baseTFD(30),   -- 1000BASE-T full duplex mode
+
+              b10GbaseX(31),      -- 10GBASE-X
+              b10GbaseLX4(32),    -- 10GBASE-LX4
+
+              b10GbaseR(33),      -- 10GBASE-R
+              b10GbaseER(34),     -- 10GBASE-ER
+              b10GbaseLR(35),     -- 10GBASE-LR
+              b10GbaseSR(36),     -- 10GBASE-SR
+              b10GbaseW(37),      -- 10GBASE-W
+              b10GbaseEW(38),     -- 10GBASE-EW
+              b10GbaseLW(39),     -- 10GBASE-LW
+              b10GbaseSW(40),     -- 10GBASE-SW
+              -- new since RFC 3636
+              b10GbaseCX4(41),    -- 10GBASE-CX4
+              b2BaseTL(42),       -- 2BASE-TL
+              b10PassTS(43),      -- 10PASS-TS
+              b100BaseBX10D(44),  -- 100BASE-BX10D
+              b100BaseBX10U(45),  -- 100BASE-BX10U
+              b100BaseLX10(46),   -- 100BASE-LX10
+              b1000BaseBX10D(47), -- 1000BASE-BX10D
+              b1000BaseBX10U(48), -- 1000BASE-BX10U
+              b1000BaseLX10(49),  -- 1000BASE-LX10
+              b1000BasePX10D(50), -- 1000BASE-PX10D
+              b1000BasePX10U(51), -- 1000BASE-PX10U
+              b1000BasePX20D(52), -- 1000BASE-PX20D
+              b1000BasePX20U(53)  -- 1000BASE-PX20U
+         }
+
+     IANAifMauMediaAvailable ::= TEXTUAL-CONVENTION
+       STATUS       current
+       DESCRIPTION
+         "This data type is used as the syntax of the
+         ifMauMediaAvailable and rpMauMediaAvailable objects in the
+         (updated) definition of MAU-MIB's ifMauTable and rpMauTable
+         respectively.
+
+         Possible values are:
+           other(1)             - undefined (not listed below)
+           unknown(2)           - MAU's true state is unknown; e.g.,
+                                  during initialization
+           available(3)         - link, light, or loopback is normal
+           notAvailable(4)      - link loss, low light, or no loopback
+           remoteFault(5)       - a fault has been detected at the
+                                  remote end of the link.  This value
+                                  applies to 10BASE-FB, 100BASE-T4 Far
+                                  End Fault Indication and non-specified
+                                  remote faults from a system running
+                                  auto-negotiation
+           invalidSignal(6)     - invalid signal has been received from
+                                  the other end of the link, 10BASE-FB
+                                  only
+           remoteJabber(7)      - remote fault, due to jabber
+
+           remoteLinkLoss(8)    - remote fault, due to link loss
+           remoteTest(9)        - remote fault, due to test
+           offline(10)          - offline, Clause 37 Auto-Negotiation
+                                  only
+           autoNegError(11)     - Auto-Negotiation Error, Clause 37
+                                  Auto-Negotiation only
+           pmdLinkFault(12)     - PMA/PMD receive link fault.  In case
+                                  of PAF (2BASE-TL / 10PASS-TS PHYs),
+                                  all PMEs in the aggregation group have
+                                  detected a link fault
+           wisFrameLoss(13)     - WIS loss of frame, 10GBASE-W only
+           wisSignalLoss(14)    - WIS loss of signal, 10GBASE-W only
+           pcsLinkFault(15)     - PCS receive link fault
+           excessiveBER(16)     - PCS Bit Error Ratio monitor
+                                  reporting excessive error ratio
+           dxsLinkFault(17)     - DTE XGXS receive link fault, XAUI only
+           pxsLinkFault(18)     - PHY XGXS receive link fault, XAUI only
+           availableReduced(19) - link normal, reduced bandwidth,
+                                  2BASE-TL / 10PASS-TS only
+           ready(20)            - at least one PME in the aggregation
+                                  group is detecting handshake tones,
+                                  2BASE-TL / 10PASS-TS only
+
+         If the MAU is a 10M b/s link or fiber type (FOIRL, 10BASE-T,
+         10BASE-F), then this is equivalent to the link test fail
+         state/low light function.  For an AUI, 10BASE2, 10BASE5, or
+         10BROAD36 MAU, this indicates whether loopback is detected on
+         the DI circuit.  The value of this attribute persists between
+         packets for MAU types AUI, 10BASE5, 10BASE2, 10BROAD36, and
+         10BASEFP.
+
+         At power-up or following a reset, the Media Available state
+         will be unknown(2) for AUI, 10BASE5, 10BASE2, 10BROAD36, and
+         10BASE-FP MAUs.  For these MAUs loopback will be tested on each
+         transmission during which no collision is detected.
+         If DI is receiving input when DO returns to IDL after a
+         transmission and there has been no collision during the
+         transmission, then loopback will be detected.  The Media
+         Available state will only change during noncollided
+         transmissions for AUI, 10BASE2, 10BASE5, 10BROAD36, and
+         10BASE-FP MAUs.
+
+         For 100BASE-T2, 100BASE-T4, 100BASE-TX, 100BASE-FX,
+         100BASE-LX10, and 100BASE-BX10 PHYs the enumerations match the
+         states within the link integrity state diagram.
+         Any MAU that implements management of [IEEE802.3] Clause
+         28 Auto-Negotiation, will map remote fault indication to
+         remoteFault(5).
+
+         Any MAU that implements management of Clause 37
+         Auto-Negotiation, will map the received RF1 and RF2 bits as
+         follows: Offline maps to offline(10), Link_Failure maps to
+         remoteFault(5), and Auto-Negotiation Error maps to
+         autoNegError(11).
+
+         The value remoteFault(5) applies to 10BASE-FB remote
+         fault indication, the 100BASE-X far-end fault indication, and
+         nonspecified remote faults from a system running Clause 28
+         Auto-Negotiation.
+
+         The value remoteJabber(7), remoteLink loss(8), or remoteTest(9)
+         SHOULD be used instead of remoteFault(5) where the reason for
+         remote fault is identified in the remote signaling protocol.
+         Where a Clause 22 MII or Clause 35 GMII is present, a logic
+         one in the remote fault bit maps to the value remoteFault(5),
+         a logic zero in the link status bit maps to the enumeration
+         notAvailable(4).  The value notAvailable(4) takes precedence
+         over remoteFault(5).
+
+         For 2BASE-TL and 10PASS-TS PHYs, the value unknown(2) maps to
+         the condition where the PHY (PCS with connected PMEs) is
+         initializing, the value ready(20) maps to the condition where
+         the interface is down and at least one PME in the aggregation
+         group is ready for handshake, the value available(3) maps to
+         the condition where all the PMEs in the aggregation group are
+         up, the value notAvailable(4) maps to the condition where all
+         the PMEs in the aggregation group are down and no handshake
+         tones are detected, the value availableReduced(19) maps to the
+         condition where the interface is up, a link fault is detected
+         at the receive direction by one or more PMEs in the
+         aggregation group, but at least one PME is up and the
+         enumeration pmdLinkFault(12) maps to the condition where a link
+         fault is detected at the receive direction by all of the PMEs
+         in the aggregation group.
+
+         For 10 Gb/s the enumerations map to value of the link_fault
+         variable within the Link Fault Signaling state diagram
+         as follows: the value OK maps to the value available(3),
+         the value Local Fault maps to the value notAvailable(4),
+         and the value Remote Fault maps to the value remoteFault(5).
+         The value pmdLinkFault(12), wisFrameLoss(13),
+         wisSignalLoss(14), pcsLinkFault(15), excessiveBER(16), or
+         dxsLinkFault(17) SHOULD be used instead of the value
+         notAvailable(4), where the reason for the Local Fault state can
+         be identified through the use of the Clause 45 MDIO Interface.
+         Where multiple reasons for the Local Fault state can be
+         identified, only the highest precedence error SHOULD be
+
+         reported.  This precedence in descending order is as follows:
+
+           pxsLinkFault
+           pmdLinkFault
+           wisFrameLoss
+           wisSignalLoss
+           pcsLinkFault
+           excessiveBER
+           dxsLinkFault.
+
+         Where a Clause 45 MDIO interface is present a logic zero in
+         the PMA/PMD Receive link status bit ([IEEE802.3]
+         Section 45.2.1.2.2) maps to the value pmdLinkFault(12),
+         logic one in the LOF status bit (Section 45.2.2.10.4) maps
+         to the value wisFrameLoss(13), a logic one in the LOS
+         status bit (Section 45.2.2.10.5) maps to the value
+         wisSignalLoss, a logic zero in the PCS Receive
+         link status bit (Section 45.2.3.2.2) maps to the value
+         pcsLinkFault(15), a logic one in the 10GBASE-R PCS Latched
+         high BER status bit (Section 45.2.3.12.2) maps to the value
+         excessiveBER, a logic zero in the DTE XS receive link status
+         bit (Section 45.2.5.2.2) maps to the value dxsLinkFault(17)
+         and a logic zero in the PHY XS transmit link status bit
+         (Section 45.2.4.2.2) maps to the value pxsLinkFault(18).
+
+         The most recent version of this textual convention is available
+         in the online version of this MIB module on the IANA web site.
+
+         Requests for new values should be made to IANA via email
+         (iana&iana.org)."
+       REFERENCE
+         "[IEEE802.3], Section 30.5.1.1.4"
+       SYNTAX       INTEGER {
+              other(1),
+              unknown(2),
+              available(3),
+              notAvailable(4),
+              remoteFault(5),
+              invalidSignal(6),
+              remoteJabber(7),
+              remoteLinkLoss(8),
+              remoteTest(9),
+              offline(10),
+              autoNegError(11),
+              pmdLinkFault(12),
+              wisFrameLoss(13),
+              wisSignalLoss(14),
+              pcsLinkFault(15),
+
+              excessiveBER(16),
+              dxsLinkFault(17),
+              pxsLinkFault(18),
+              availableReduced(19),
+              ready(20)
+         }
+
+     IANAifMauAutoNegCapBits ::= TEXTUAL-CONVENTION
+       STATUS       current
+       DESCRIPTION
+         "This data type is used as the syntax of the
+         ifMauAutoNegCapabilityBits, ifMauAutoNegCapAdvertisedBits, and
+         ifMauAutoNegCapReceivedBits objects in the (updated) definition
+         of MAU-MIB's ifMauAutoNegTable.
+
+         The most recent version of this textual convention is available
+         in the online version of this MIB module on the IANA web site.
+
+         Requests for new values should be made to IANA via email
+         (iana&iana.org)."
+       REFERENCE
+         "[IEEE802.3], Section 30.6.1.1.5"
+       SYNTAX       BITS {
+              bOther(0),          -- other or unknown
+              b10baseT(1),        -- 10BASE-T  half duplex mode
+              b10baseTFD(2),      -- 10BASE-T  full duplex mode
+              b100baseT4(3),      -- 100BASE-T4
+              b100baseTX(4),      -- 100BASE-TX half duplex mode
+              b100baseTXFD(5),    -- 100BASE-TX full duplex mode
+              b100baseT2(6),      -- 100BASE-T2 half duplex mode
+              b100baseT2FD(7),    -- 100BASE-T2 full duplex mode
+              bFdxPause(8),       -- PAUSE for full-duplex links
+              bFdxAPause(9),      -- Asymmetric PAUSE for full-duplex
+                                  --     links
+              bFdxSPause(10),     -- Symmetric PAUSE for full-duplex
+                                  --     links
+              bFdxBPause(11),     -- Asymmetric and Symmetric PAUSE for
+                                  --     full-duplex links
+              b1000baseX(12),     -- 1000BASE-X, -LX, -SX, -CX half
+                                  --     duplex mode
+              b1000baseXFD(13),   -- 1000BASE-X, -LX, -SX, -CX full
+                                  --     duplex mode
+              b1000baseT(14),     -- 1000BASE-T half duplex mode
+              b1000baseTFD(15)    -- 1000BASE-T full duplex mode
+         }
+
+     IANAifJackType ::= TEXTUAL-CONVENTION
+       STATUS       current
+
+       DESCRIPTION
+         "Common enumeration values for repeater and interface MAU
+         jack types.  This data type is used as the syntax of the
+         ifJackType and rpJackType objects in the (updated) definition
+         of MAU-MIB's ifJackTable and rpJackTable respectively.
+
+         Possible values are:
+              other(1)          - undefined or unknown
+              rj45(2)           - RJ45
+              rj45S(3)          - RJ45 shielded
+              db9(4)            - DB9
+              bnc(5)            - BNC
+              fAUI(6)           - AUI female
+              mAUI(7)           - AUI male
+              fiberSC(8)        - SC fiber
+              fiberMIC(9)       - MIC fiber
+              fiberST(10)       - ST fiber
+              telco(11)         - Telco
+              mtrj(12)          - MT-RJ fiber
+              hssdc(13)         - fiber channel style-2
+              fiberLC(14)       - LC fiber
+              cx4(15)           - IB4X for 10GBASE-CX4
+
+         The most recent version of this textual convention is available
+         in the online version of this MIB module on the IANA web site.
+
+         Requests for new values should be made to IANA via email
+         (iana&iana.org)."
+       SYNTAX       INTEGER {
+              other(1),
+              rj45(2),
+              rj45S(3),
+              db9(4),
+              bnc(5),
+              fAUI(6),
+              mAUI(7),
+              fiberSC(8),
+              fiberMIC(9),
+              fiberST(10),
+              telco(11),
+              mtrj(12),
+              hssdc(13),
+              fiberLC(14),
+              -- new since RFC 3636
+              cx4(15)
+         }
+
+     -- OBJECT IDENTITIES for MAU types
+
+     --  (see rpMauType and ifMauType of MAU-MIB for usage)
+     -- The following definitions has been moved from RFC 3636 and
+     -- no longer appear in its revision.
+
+     dot3MauType OBJECT IDENTIFIER ::= { mib-2 snmpDot3MauMgt(26) 4 }
+
+     dot3MauTypeAUI OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "no internal MAU, view from AUI"
+       REFERENCE   "[IEEE802.3], Section 7"
+       ::= { dot3MauType 1 }
+
+     dot3MauType10Base5 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "thick coax MAU"
+       REFERENCE   "[IEEE802.3], Section 7"
+       ::= { dot3MauType 2 }
+
+     dot3MauTypeFoirl OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "FOIRL MAU"
+       REFERENCE   "[IEEE802.3], Section 9.9"
+       ::= { dot3MauType 3 }
+
+     dot3MauType10Base2 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "thin coax MAU"
+       REFERENCE   "[IEEE802.3], Section 10"
+       ::= { dot3MauType 4 }
+
+     dot3MauType10BaseT OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "UTP MAU.
+                   Note that it is strongly recommended that
+                   agents return either dot3MauType10BaseTHD or
+                   dot3MauType10BaseTFD if the duplex mode is
+                   known.  However, management applications should
+                   be prepared to receive this MAU type value from
+                   older agent implementations."
+       REFERENCE   "[IEEE802.3], Section 14"
+       ::= { dot3MauType 5 }
+
+     dot3MauType10BaseFP OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "passive fiber MAU"
+       REFERENCE   "[IEEE802.3], Section 16"
+       ::= { dot3MauType 6 }
+
+     dot3MauType10BaseFB OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "sync fiber MAU"
+       REFERENCE   "[IEEE802.3], Section 17"
+       ::= { dot3MauType 7 }
+
+     dot3MauType10BaseFL OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "async fiber MAU.
+                   Note that it is strongly recommended that
+                   agents return either dot3MauType10BaseFLHD or
+                   dot3MauType10BaseFLFD if the duplex mode is
+                   known.  However, management applications should
+                   be prepared to receive this MAU type value from
+                   older agent implementations."
+       REFERENCE   "[IEEE802.3], Section 18"
+       ::= { dot3MauType 8 }
+
+     dot3MauType10Broad36 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "broadband DTE MAU.
+                   Note that 10BROAD36 MAUs can be attached to
+                   interfaces but not to repeaters."
+       REFERENCE   "[IEEE802.3], Section 11"
+       ::= { dot3MauType 9 }
+
+     ------ new since RFC 1515:
+     dot3MauType10BaseTHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "UTP MAU, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 14"
+       ::= { dot3MauType 10 }
+
+     dot3MauType10BaseTFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "UTP MAU, full duplex mode"
+       REFERENCE   "[IEEE802.3], Section 14"
+       ::= { dot3MauType 11 }
+
+     dot3MauType10BaseFLHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "async fiber MAU, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 18"
+       ::= { dot3MauType 12 }
+
+     dot3MauType10BaseFLFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "async fiber MAU, full duplex mode"
+
+       REFERENCE   "[IEEE802.3], Section 18"
+       ::= { dot3MauType 13 }
+
+     dot3MauType100BaseT4 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "4 pair category 3 UTP"
+       REFERENCE   "[IEEE802.3], Section 23"
+       ::= { dot3MauType 14 }
+
+     dot3MauType100BaseTXHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "2 pair category 5 UTP, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 25"
+       ::= { dot3MauType 15 }
+
+     dot3MauType100BaseTXFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "2 pair category 5 UTP, full duplex mode"
+       REFERENCE   "[IEEE802.3], Section 25"
+       ::= { dot3MauType 16 }
+
+     dot3MauType100BaseFXHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "X fiber over PMT, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 26"
+       ::= { dot3MauType 17 }
+
+     dot3MauType100BaseFXFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "X fiber over PMT, full duplex mode"
+       REFERENCE   "[IEEE802.3], Section 26"
+       ::= { dot3MauType 18 }
+
+     dot3MauType100BaseT2HD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "2 pair category 3 UTP, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 32"
+       ::= { dot3MauType 19 }
+
+     dot3MauType100BaseT2FD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "2 pair category 3 UTP, full duplex mode"
+       REFERENCE   "[IEEE802.3], Section 32"
+       ::= { dot3MauType 20 }
+
+     ------ new since RFC 2239:
+     dot3MauType1000BaseXHD OBJECT-IDENTITY
+       STATUS      current
+
+       DESCRIPTION "PCS/PMA, unknown PMD, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 36"
+       ::= { dot3MauType 21 }
+
+     dot3MauType1000BaseXFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "PCS/PMA, unknown PMD, full duplex mode"
+       REFERENCE   "[IEEE802.3], Section 36"
+       ::= { dot3MauType 22 }
+
+     dot3MauType1000BaseLXHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Fiber over long-wavelength laser, half duplex
+                   mode"
+       REFERENCE   "[IEEE802.3], Section 38"
+       ::= { dot3MauType 23 }
+
+     dot3MauType1000BaseLXFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Fiber over long-wavelength laser, full duplex
+                   mode"
+       REFERENCE   "[IEEE802.3], Section 38"
+       ::= { dot3MauType 24 }
+
+     dot3MauType1000BaseSXHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Fiber over short-wavelength laser, half
+                   duplex mode"
+       REFERENCE   "[IEEE802.3], Section 38"
+       ::= { dot3MauType 25 }
+
+     dot3MauType1000BaseSXFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Fiber over short-wavelength laser, full
+                   duplex mode"
+       REFERENCE   "[IEEE802.3], Section 38"
+       ::= { dot3MauType 26 }
+
+     dot3MauType1000BaseCXHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Copper over 150-Ohm balanced cable, half
+                   duplex mode"
+       REFERENCE   "[IEEE802.3], Section 39"
+       ::= { dot3MauType 27 }
+
+     dot3MauType1000BaseCXFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Copper over 150-Ohm balanced cable, full
+
+                   duplex mode"
+       REFERENCE   "[IEEE802.3], Section 39"
+       ::= { dot3MauType 28 }
+
+     dot3MauType1000BaseTHD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Four-pair Category 5 UTP, half duplex mode"
+       REFERENCE   "[IEEE802.3], Section 40"
+       ::= { dot3MauType 29 }
+
+     dot3MauType1000BaseTFD OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Four-pair Category 5 UTP, full duplex mode"
+       REFERENCE   "[IEEE802.3], Section 40"
+       ::= { dot3MauType 30 }
+
+     ------ new since RFC 2668:
+     dot3MauType10GigBaseX OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "X PCS/PMA, unknown PMD."
+       REFERENCE   "[IEEE802.3], Section 48"
+       ::= { dot3MauType 31 }
+
+     dot3MauType10GigBaseLX4 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "X fiber over WWDM optics"
+       REFERENCE   "[IEEE802.3], Section 53"
+       ::= { dot3MauType 32 }
+
+     dot3MauType10GigBaseR OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "R PCS/PMA, unknown PMD."
+       REFERENCE   "[IEEE802.3], Section 49"
+       ::= { dot3MauType 33 }
+
+     dot3MauType10GigBaseER OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "R fiber over 1550 nm optics"
+       REFERENCE   "[IEEE802.3], Section 52"
+       ::= { dot3MauType 34 }
+
+     dot3MauType10GigBaseLR OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "R fiber over 1310 nm optics"
+       REFERENCE   "[IEEE802.3], Section 52"
+       ::= { dot3MauType 35 }
+
+     dot3MauType10GigBaseSR OBJECT-IDENTITY
+
+       STATUS      current
+       DESCRIPTION "R fiber over 850 nm optics"
+       REFERENCE   "[IEEE802.3], Section 52"
+       ::= { dot3MauType 36 }
+
+     dot3MauType10GigBaseW OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "W PCS/PMA, unknown PMD."
+       REFERENCE   "[IEEE802.3], Section 49 and 50"
+       ::= { dot3MauType 37 }
+
+     dot3MauType10GigBaseEW OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "W fiber over 1550 nm optics"
+       REFERENCE   "[IEEE802.3], Section 52"
+       ::= { dot3MauType 38 }
+
+     dot3MauType10GigBaseLW OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "W fiber over 1310 nm optics"
+       REFERENCE   "[IEEE802.3], Section 52"
+       ::= { dot3MauType 39 }
+
+     dot3MauType10GigBaseSW OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "W fiber over 850 nm optics"
+       REFERENCE   "[IEEE802.3], Section 52"
+       ::= { dot3MauType 40 }
+
+     ------ new since RFC 3636:
+     dot3MauType10GigBaseCX4 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "X copper over 8 pair 100-Ohm balanced cable"
+       REFERENCE   "[IEEE802.3], Section 54"
+       ::= { dot3MauType 41 }
+
+     dot3MauType2BaseTL OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Voice grade UTP copper, up to 2700m, optional PAF"
+       REFERENCE   "[IEEE802.3], Sections 61 and 63"
+       ::= { dot3MauType 42 }
+
+     dot3MauType10PassTS OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Voice grade UTP copper, up to 750m, optional PAF"
+       REFERENCE   "[IEEE802.3], Sections 61 and 62"
+       ::= { dot3MauType 43 }
+
+     dot3MauType100BaseBX10D OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber OLT, long wavelength, 10km"
+       REFERENCE   "[IEEE802.3], Section 58"
+       ::= { dot3MauType 44 }
+
+     dot3MauType100BaseBX10U OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber ONU, long wavelength, 10km"
+       REFERENCE   "[IEEE802.3], Section 58"
+       ::= { dot3MauType 45 }
+
+     dot3MauType100BaseLX10 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Two single-mode fibers, long wavelength, 10km"
+       REFERENCE   "[IEEE802.3], Section 58"
+       ::= { dot3MauType 46 }
+
+     dot3MauType1000BaseBX10D OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber OLT, long wavelength, 10km"
+       REFERENCE   "[IEEE802.3], Section 59"
+       ::= { dot3MauType 47 }
+
+     dot3MauType1000BaseBX10U OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber ONU, long wavelength, 10km"
+       REFERENCE   "[IEEE802.3], Section 59"
+       ::= { dot3MauType 48 }
+
+     dot3MauType1000BaseLX10 OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "Two sigle-mode fiber, long wavelength, 10km"
+       REFERENCE   "[IEEE802.3], Section 59"
+       ::= { dot3MauType 49 }
+
+     dot3MauType1000BasePX10D OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber EPON OLT, 10km"
+       REFERENCE   "[IEEE802.3], Section 60"
+       ::= { dot3MauType 50 }
+
+     dot3MauType1000BasePX10U OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber EPON ONU, 10km"
+       REFERENCE   "[IEEE802.3], Section 60"
+       ::= { dot3MauType 51 }
+
+     dot3MauType1000BasePX20D OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber EPON OLT, 20km"
+       REFERENCE   "[IEEE802.3], Section 60"
+       ::= { dot3MauType 52 }
+
+     dot3MauType1000BasePX20U OBJECT-IDENTITY
+       STATUS      current
+       DESCRIPTION "One single-mode fiber EPON ONU, 20km"
+       REFERENCE   "[IEEE802.3], Section 60"
+       ::= { dot3MauType 53 }
+
+END

src/apps/snmp/LwipMibCompiler/Mibs/IANA/IANA-RTPROTO-MIB

@@ -0,0 +1,92 @@
+
+IANA-RTPROTO-MIB DEFINITIONS ::= BEGIN
+
+IMPORTS
+    MODULE-IDENTITY, mib-2           FROM SNMPv2-SMI
+    TEXTUAL-CONVENTION               FROM SNMPv2-TC;
+
+ianaRtProtoMIB  MODULE-IDENTITY
+    LAST-UPDATED "200009260000Z" -- September 26, 2000
+    ORGANIZATION "IANA"
+    CONTACT-INFO
+            " Internet Assigned Numbers Authority
+              Internet Corporation for Assigned Names and Numbers
+              4676 Admiralty Way, Suite 330
+              Marina del Rey, CA 90292-6601
+
+              Phone: +1 310 823 9358
+              EMail: iana&iana.org"
+    DESCRIPTION
+            "This MIB module defines the IANAipRouteProtocol and
+            IANAipMRouteProtocol textual conventions for use in MIBs
+            which need to identify unicast or multicast routing
+            mechanisms.
+
+            Any additions or changes to the contents of this MIB module
+            require either publication of an RFC, or Designated Expert
+            Review as defined in RFC 2434, Guidelines for Writing an
+            IANA Considerations Section in RFCs.  The Designated Expert 
+            will be selected by the IESG Area Director(s) of the Routing
+            Area."
+
+    REVISION     "200009260000Z"  -- September 26, 2000 
+    DESCRIPTION  "Original version, published in coordination
+                 with RFC 2932."
+
+    ::= { mib-2 84 }
+
+IANAipRouteProtocol ::= TEXTUAL-CONVENTION
+   STATUS      current
+
+   DESCRIPTION
+            "A mechanism for learning routes.  Inclusion of values for
+            routing protocols is not intended to imply that those
+            protocols need be supported."
+   SYNTAX      INTEGER {
+                other     (1),  -- not specified
+                local     (2),  -- local interface
+                netmgmt   (3),  -- static route
+                icmp      (4),  -- result of ICMP Redirect
+
+                        -- the following are all dynamic
+                        -- routing protocols
+
+                egp        (5),  -- Exterior Gateway Protocol
+                ggp        (6),  -- Gateway-Gateway Protocol
+                hello      (7),  -- FuzzBall HelloSpeak
+                rip        (8),  -- Berkeley RIP or RIP-II
+                isIs       (9),  -- Dual IS-IS
+                esIs       (10), -- ISO 9542
+                ciscoIgrp  (11), -- Cisco IGRP
+                bbnSpfIgp  (12), -- BBN SPF IGP
+                ospf       (13), -- Open Shortest Path First
+                bgp        (14), -- Border Gateway Protocol
+                idpr       (15), -- InterDomain Policy Routing
+                ciscoEigrp (16), -- Cisco EIGRP
+                dvmrp      (17)  -- DVMRP
+               }
+
+IANAipMRouteProtocol ::= TEXTUAL-CONVENTION
+   STATUS      current
+   DESCRIPTION
+            "The multicast routing protocol.  Inclusion of values for
+            multicast routing protocols is not intended to imply that
+            those protocols need be supported."
+   SYNTAX      INTEGER {
+                   other(1),          -- none of the following
+                   local(2),          -- e.g., manually configured
+                   netmgmt(3),        -- set via net.mgmt protocol
+                   dvmrp(4),
+                   mospf(5),
+                   pimSparseDense(6), -- PIMv1, both DM and SM
+                   cbt(7),
+                   pimSparseMode(8),  -- PIM-SM
+                   pimDenseMode(9),   -- PIM-DM
+                   igmpOnly(10),
+                   bgmp(11),
+                   msdp(12)
+               }
+
+END
+
+

src/apps/snmp/LwipMibCompiler/Mibs/IANA/IANATn3270eTC-MIB

@@ -0,0 +1,306 @@
+
+  IANATn3270eTC-MIB DEFINITIONS ::= BEGIN
+
+ IMPORTS
+      MODULE-IDENTITY, mib-2
+          FROM SNMPv2-SMI
+      TEXTUAL-CONVENTION
+          FROM SNMPv2-TC;
+
+    ianaTn3270eTcMib MODULE-IDENTITY
+        LAST-UPDATED "200005100000Z"  -- May 10, 2000
+        ORGANIZATION "IANA"
+        CONTACT-INFO
+            "Internet Assigned Numbers Authority
+
+             Postal: ICANN
+                     4676 Admiralty Way, Suite 330
+                     Marina del Rey, CA 90292
+
+             Tel:    +1  310 823 9358 x20
+             E-Mail: iana&iana.org"
+        DESCRIPTION
+            "This module defines a set of textual conventions
+            for use by the TN3270E-MIB and the TN3270E-RT-MIB.
+
+            Any additions or changes to the contents of this
+            MIB module must first be discussed on the tn3270e
+            working group list at: tn3270e&list.nih.gov
+            and approved by one of the following TN3270E
+            working group contacts:
+
+                Ed Bailey (co-chair) - elbailey&us.ibm.com
+                Michael Boe (co-chair) - mboe&cisco.com
+                Ken White - kennethw&vnet.ibm.com
+                Robert Moore - remoore&us.ibm.com
+
+            The above list of contacts can be altered with
+            the approval of the two co-chairs.
+
+            The Textual Conventions defined within this MIB have
+            no security issues associated with them unless
+            explicitly stated in their corresponding
+            DESCRIPTION clause."
+
+     -- revision log, in reverse chronological order
+
+        REVISION    "200005100000Z"  -- May 10, 2000
+        DESCRIPTION "Fix to import mib-2 instead of experimental."
+
+        REVISION    "199909011000Z"  -- September 1, 1999
+        DESCRIPTION
+            "Initial version transferred from the TN3270E
+            working group to IANA."
+
+        ::= { mib-2 61 }
+
+
+  -- Textual Conventions
+
+  IANATn3270eAddrType ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+          "The textual convention for defining the type of a
+          client address.  The enumeration value unknown(0) is
+          also used to indicate that no actual address is present."
+      SYNTAX INTEGER {
+                      unknown(0),
+                      ipv4(1),
+                      ipv6(2)
+                     }
+
+  IANATn3270eAddress ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+          "Denotes a client address.  The type of client address is
+          determined by use of the IANATn3270eAddrType textual
+convention.
+          The length in octets of a IANATn3270eAddress object is:
+
+            IANATn3270eAddrType   Address Length
+            +++++++++++++++++++   ++++++++++++++
+                     unknown(0)   not specified or unknown; the
+                                  actual length of the
+                                  IANATn3270eAddress octet string
+                                  indicates if an address
+                                  is present
+                        ipv4(1)   4 OCTETS
+                        ipv6(2)   16 OCTETS
+
+          This textual convention is similar to the TAddress
+          TC defined by RFC1903 except that it allows a
+          zero-length octet string and is not a full transport
+          layer address."
+      SYNTAX OCTET STRING (SIZE (0..255))
+
+  IANATn3270eClientType ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+          "The textual convention for defining the set of
+           enumerations used by tn3270eTcpConnClientIdFormat
+           in the TN3270E-MIB:
+
+           ENUMERATION        OCTETs  DESCRIPTION
+
+           none(1)              0     Not specified
+           other(2)           1..512  Implementation specific
+           ipv4(3)              6     4-octet IP Address plus
+                                      2-octet TCP Port
+           ipv6(4)              18    16-octet IPv6 Address
+                                      plus 2-octet TCP Port
+           domainName(5)      1..512  The DNS name of a
+                                      client.
+           truncDomainName(6) 1..512  The (truncated) DNS name
+                                      of a client.
+           string(7)          1..512  Unknown Utf8String
+           certificate(8)     1..512  certificate
+           userId(9)          1..8    Client's userid
+           x509dn(10)         1..512  X.509 Distinguished Name
+
+           Representation of a certificate(8) may be lead to
+           a security exposure and is NOT RECOMMENDED without
+           adequate security."
+      SYNTAX INTEGER {
+                      none(1),
+                      other(2),
+                      ipv4(3),
+                      ipv6(4),
+                      domainName(5),
+                      truncDomainName(6),
+                      string(7),
+                      certificate(8),
+                      userId(9),
+                      x509dn(10)
+                     }
+
+  IANATn3270Functions ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+          "This textual convention reflects the current set of
+          TN3270 and TN3270E functions that can be negotiated
+          between a server and its client:
+
+          RFC856
+          transmitBinary  The sender of this command REQUESTS
+                          permission to begin transmitting, or
+                          confirms that it will now begin
+                          transmitting characters which are to
+                          be interpreted as 8 bits of binary
+                          data by the receiver of the data.
+          RFC860
+          timingMark      The sender of this command REQUESTS
+                          that the receiver of this command
+                          return a WILL TIMING-MARK in the data
+                          stream at the 'appropriate place'.
+          RFC885
+          endOfRecord     The sender of this command requests
+                          permission to begin transmission of
+                          the Telnet END-OF-RECORD (EOR) code
+                          when transmitting data characters, or
+                          the sender of this command confirms it
+                          will now begin transmission of EORs
+                          with transmitted data characters.
+          RFC1091
+          terminalType    Sender is willing to send terminal
+                          type information in a subsequent
+                          sub-negotiation.
+
+          RFC1041
+          tn3270Regime    Sender is willing to send list of
+                          supported 3270 Regimes in a
+                          subsequent sub-negotiation.
+          RFC2355
+          scsCtlCodes     (Printer sessions only).  Allows the
+                          use of the SNA Character Stream (SCS)
+                          and SCS control codes on the session.
+                          SCS is used with LU type 1 SNA sessions.
+          dataStreamCtl   (Printer sessions only).  Allows the use
+                          of the standard 3270 data stream.  This
+                          corresponds to LU type 3 SNA sessions.
+          responses       Provides support for positive and
+                          negative response handling.  Allows the
+                          server to reflect to the client any and
+                          all definite, exception, and no response
+                          requests sent by the host application.
+          bindImage       Allows the server to send the SNA Bind
+                          image and Unbind notification to the
+                          client.
+          sysreq          Allows the client and server to emulate
+                          some (or all, depending on the server) of
+                          the functions of the SYSREQ key in an SNA
+                          environment."
+      SYNTAX BITS {
+                   transmitBinary(0),-- rfc856
+                   timemark(1),      -- rfc860
+                   endOfRecord(2),   -- rfc885
+                   terminalType(3),  -- rfc1091
+                   tn3270Regime(4),  -- rfc1041
+                   scsCtlCodes(5),   -- rfc2355
+                   dataStreamCtl(6), -- rfc2355
+                   responses(7),     -- rfc2355
+                   bindImage(8),     -- rfc2355
+                   sysreq(9)         -- rfc2355
+                  }
+
+  IANATn3270ResourceType ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+          "The type of resource defined by a resource pool.  Refer
+          to tn3270eResPoolTable."
+      SYNTAX INTEGER {
+                      other(1),
+                      terminal(2),
+                      printer(3),
+                      terminalOrPrinter(4)
+                     }
+
+  IANATn3270DeviceType ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+          "This textual convention defines the list of device
+          types that can be set, as defined by RFC 2355."
+      SYNTAX INTEGER {
+                   -- terminals
+                      ibm3278d2(1),    -- (24 row x 80 col display)
+                      ibm3278d2E(2),   -- (24 row x 80 col display)
+                      ibm3278d3(3),    -- (32 row x 80 col display)
+                      ibm3278d3E(4),   -- (32 row x 80 col display)
+                      ibm3278d4(5),    -- (43 row x 80 col display)
+                      ibm3278d4E(6),   -- (43 row x 80 col display)
+                      ibm3278d5(7),    -- (27 row x 132 col display)
+                      ibm3278d5E(8),   -- (27 row x 132 col display)
+                      ibmDynamic(9),   -- (no pre-defined display size)
+
+                   -- printers
+                      ibm3287d1(10),
+
+                      unknown(100)
+                     }
+
+  IANATn3270eLogData ::= TEXTUAL-CONVENTION
+      STATUS current
+      DESCRIPTION
+        "An octet string representing log data as pertaining to
+        either a TN3270 or TN3270E Session as reported from a
+        TN3270E Server. Log data is stored in an octet string
+        in time order (from earliest to latest).
+
+        Each log element has the following form:
+
+        +------+----+---------+------------+
+        !length!type!TimeStamp! data       !
+        +------+----+---------+------------+
+
+        where
+
+        length    = one-octet length of the data portion of the
+                    trace element, not including the length,
+                    type, and TimeStamp fields
+        type      = one-octet code point characterizing the data.
+        TimeStamp = A 4-octet field representing the number of
+                    TimeTicks since the TN3270E server was last
+                    activated.  The server's last activation time
+                    is available in the tn3270eSrvrConfLastActTime
+                    object in the TN3270E MIB, which has the
+                    syntax DateAndTime.
+        data      = initial part of a PDU.
+
+        length   type
+
+          0-255  x'00' - unknown
+          0      x'01' - inactivity timer expired
+          0      x'02' - dynamic timer expired
+          0      x'03' - actlu req
+          0      x'04' - bind req
+          0      x'05' - clear req
+          0      x'06' - dactlu req
+          0      x'07' - warm actpu req
+          0      x'08' - sdt req
+          0      x'09' - unbind req
+          0      x'0A' - notify resp
+          0      x'0B' - reply PSID neg rsp
+          0      x'0C' - reply PSID pos rsp
+          0      x'0D' - unbind rsp
+          0      x'0E' - hierarchical reset
+          0      x'0F' - client connect req
+          0      x'10' - client disconnect req
+          0      x'11' - timingmark received
+          0      x'12' - flowControl timer expired
+          0      x'13' - neg rsp to host
+          0      x'14' - neg rsp from host
+          0      x'15' - data contention
+          0      x'16' - no buffer to send SNA data
+          0      x'17' - receive response while inbound
+          0      x'18' - client protocol error
+          0      x'19' - badClientSequenceReceived
+          1-255  x'1A' - utf8String
+          2      x'1B' - hexCode, implementation dependent
+
+          Log element entries have a minimum length of 6 octets.
+          The zero-length string indicates that no log data is
+          available."
+      SYNTAX OCTET STRING (SIZE (0 | 6..2048))
+
+  END
+
+