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Introduction of sequential-API build variant, better thread safety (lwIP only)

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This commit is contained in:
Joseph Henry
2017-09-27 02:29:04 -07:00
parent e4620e4c85
commit 5f1e9fe795
176 changed files with 16494 additions and 20406 deletions
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75
Makefile
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@@ -116,7 +116,7 @@ LIBZT_INCLUDES+=-Iinclude \
# NS_ Configuration options for userspace network stack
ifeq ($(ZT_DEBUG),1)
ZT_FLAGS+=-DZT_TRACE
ZT_DEFS+=-DZT_TRACE
CFLAGS+=-Wall -g -pthread
STRIP=echo
else
@@ -125,7 +125,7 @@ else
STRIP=strip
endif
ifeq ($(LIBZT_DEBUG),1)
LIBZT_FLAGS+=-DLIBZT_DEBUG
LIBZT_DEFS+=-DLIBZT_DEBUG
endif
ifeq ($(NS_DEBUG),1)
# specified in stack configuration section
@@ -147,8 +147,8 @@ ifeq ($(SDK_JNI), 1)
endif
CXXFLAGS=$(CFLAGS) -Wno-format -fno-rtti -std=c++11
ZT_FLAGS+=-DZT_SDK -DZT_SOFTWARE_UPDATE_DEFAULT="\"disable\""
LIBZT_FLAGS+=
ZT_DEFS+=-DZT_SDK -DZT_SOFTWARE_UPDATE_DEFAULT="\"disable\""
LIBZT_DEFS+=
LIBZT_FILES:=src/VirtualTap.cpp src/libzt.cpp src/Utilities.cpp
STATIC_LIB=$(BUILD)/libzt.a
@@ -166,22 +166,22 @@ endif
ifeq ($(STACK_PICO),1)
# picoTCP default protocol versions
ifeq ($(NS_DEBUG),1)
STACK_FLAGS+=
STACK_DEFS+=
endif
ifeq ($(LIBZT_IPV4)$(LIBZT_IPV6),1)
ifeq ($(LIBZT_IPV4),1)
STACK_DRIVER_FLAGS+=-DLIBZT_IPV4
STACK_FLAGS+=IPV4=1
STACK_DRIVER_DEFS+=-DLIBZT_IPV4
STACK_DEFS+=IPV4=1
endif
ifeq ($(LIBZT_IPV6),1)
STACK_DRIVER_FLAGS+=-DLIBZT_IPV6
STACK_FLAGS+=IPV6=1
STACK_DRIVER_DEFS+=-DLIBZT_IPV6
STACK_DEFS+=IPV6=1
endif
else
STACK_DRIVER_FLAGS+=-DLIBZT_IPV4 -DLIBZT_IPV6
STACK_FLAGS+=IPV6=1 IPV4=1
STACK_DRIVER_DEFS+=-DLIBZT_IPV4 -DLIBZT_IPV6
STACK_DEFS+=IPV6=1 IPV4=1
endif
STACK_DRIVER_FLAGS+=-DSTACK_PICO
STACK_DRIVER_DEFS+=-DSTACK_PICO
STACK_LIB:=libpicotcp.a
STACK_DIR:=ext/picotcp
STACK_LIB:=$(STACK_DIR)/build/lib/$(STACK_LIB)
@@ -193,23 +193,23 @@ endif
ifeq ($(STACK_LWIP),1)
# lwIP default protocol versions
ifeq ($(NS_DEBUG),1)
STACK_FLAGS+=LWIP_DEBUG=1
STACK_DEFS+=LWIP_DEBUG=1
endif
ifeq ($(LIBZT_IPV4)$(LIBZT_IPV6),1)
ifeq ($(LIBZT_IPV4),1)
STACK_DRIVER_FLAGS+=-DLIBZT_IPV4 -DLWIP_IPV4=1
STACK_FLAGS+=LIBZT_IPV4=1
STACK_DRIVER_DEFS+=-DLIBZT_IPV4 -DLWIP_IPV4=1
STACK_DEFS+=LIBZT_IPV4=1
endif
ifeq ($(LIBZT_IPV6),1)
STACK_DRIVER_FLAGS+=-DLIBZT_IPV6 -DLWIP_IPV6=1
STACK_FLAGS+=LIBZT_IPV6=1
STACK_DRIVER_DEFS+=-DLIBZT_IPV6 -DLWIP_IPV6=1
STACK_DEFS+=LIBZT_IPV6=1
endif
else
STACK_DRIVER_FLAGS+=-DLIBZT_IPV4 -DLWIP_IPV4=1
STACK_FLAGS+=LIBZT_IPV4=1
STACK_DRIVER_DEFS+=-DLIBZT_IPV4 -DLWIP_IPV4=1
STACK_DEFS+=LIBZT_IPV4=1
endif
STACK_DRIVER_FLAGS+=-DLWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
STACK_DRIVER_FLAGS+=-DSTACK_LWIP
STACK_DRIVER_DEFS+=-DLWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
STACK_DRIVER_DEFS+=-DSTACK_LWIP
STACK_DRIVER_FILES:=src/lwIP.cpp
LWIPARCH=$(CONTRIBDIR)/ports/unix
LWIPDIR=ext/lwip/src
@@ -222,7 +222,7 @@ STACK_INCLUDES+=-Iext/lwip/src/include/lwip \
endif
ifeq ($(NO_STACK),1)
STACK_DRIVER_FLAGS+=-DNO_STACK
STACK_DRIVER_DEFS+=-DNO_STACK
endif
##############################################################################
@@ -231,8 +231,8 @@ endif
%.o : %.cpp
@mkdir -p $(BUILD) obj
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(STACK_DRIVER_FLAGS) $(ZT_FLAGS) \
$(ZT_INCLUDES) $(STACK_INCLUDES) $(LIBZT_INCLUDES) -c $^ -o obj/$(@F)
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(STACK_DRIVER_DEFS) $(ZT_DEFS) \
$(ZT_INCLUDES) $(LIBZT_INCLUDES) -c $^ -o obj/$(@F)
%.o : %.c
@mkdir -p $(BUILD) obj
@@ -242,13 +242,13 @@ picotcp:
cd ext/picotcp; make lib ARCH=shared IPV4=1 IPV6=1
lwip:
make -f make-liblwip.mk liblwip.a $(STACK_FLAGS)
make -f make-liblwip.mk liblwip.a $(STACK_DEFS)
ifeq ($(STACK_PICO),1)
static_lib: picotcp $(ZTO_OBJS)
@mkdir -p $(BUILD) obj
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(ZT_FLAGS) $(ZT_INCLUDES) $(LIBZT_FLAGS) \
$(LIBZT_INCLUDES) $(STACK_INCLUDES) $(STACK_DRIVER_FLAGS) $(LIBZT_FILES) \
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(ZT_DEFS) $(ZT_INCLUDES) $(LIBZT_DEFS) \
$(LIBZT_INCLUDES) $(STACK_INCLUDES) $(STACK_DRIVER_DEFS) $(LIBZT_FILES) \
$(STACK_DRIVER_FILES) -c
mv *.o obj
mv ext/picotcp/build/lib/*.o obj
@@ -259,18 +259,23 @@ endif
ifeq ($(STACK_LWIP),1)
static_lib: lwip $(ZTO_OBJS)
@mkdir -p $(BUILD) obj
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(ZT_FLAGS) $(ZT_INCLUDES) $(LIBZT_FLAGS) \
$(LIBZT_INCLUDES) $(STACK_INCLUDES) $(STACK_DRIVER_FLAGS) $(LIBZT_FILES) \
$(STACK_DRIVER_FILES) -c
$(CXX) $(CXXFLAGS) -c src/VirtualSocket.cpp $(LIBZT_INCLUDES)
$(CXX) $(CXXFLAGS) -c src/VirtualBindingPair.cpp $(ZT_INCLUDES) $(LIBZT_INCLUDES)
$(CXX) $(CXXFLAGS) -c src/Platform.cpp $(LIBZT_INCLUDES)
$(CXX) $(CXXFLAGS) -c src/libzt.cpp $(ZT_DEFS) $(ZT_INCLUDES) $(STACK_INCLUDES) $(LIBZT_DEFS) $(LIBZT_INCLUDES) $(STACK_DRIVER_DEFS)
$(CXX) $(CXXFLAGS) -c src/Utilities.cpp $(ZT_DEFS) $(ZT_INCLUDES) $(LIBZT_INCLUDES) $(STACK_DRIVER_DEFS)
$(CXX) $(CXXFLAGS) -c src/ZT1Service.cpp $(ZT_DEFS) $(ZT_INCLUDES) $(LIBZT_INCLUDES) $(LIBZT_DEFS) $(STACK_DRIVER_DEFS)
$(CXX) $(CXXFLAGS) -c src/VirtualTap.cpp $(ZT_DEFS) $(ZT_INCLUDES) $(LIBZT_DEFS) $(LIBZT_INCLUDES) $(STACK_DRIVER_DEFS)
$(CXX) $(CXXFLAGS) -c src/lwIP.cpp $(ZT_DEFS) $(ZT_INCLUDES) $(STACK_INCLUDES) $(LIBZT_DEFS) $(LIBZT_INCLUDES) $(STACK_DRIVER_DEFS)
mv *.o obj
$(ARTOOL) $(ARFLAGS) -o $(STATIC_LIB) $(STACK_LIB) obj/*.o
$(ARTOOL) $(ARFLAGS) -o $(STATIC_LIB) obj/*.o
@date +"Build script finished on %F %T"
endif
# for layer-2 only (this will omit all userspace network stack code)
ifeq ($(NO_STACK),1)
static_lib: $(ZTO_OBJS)
@mkdir -p $(BUILD) obj
$(CXX) $(CXXFLAGS) $(ZT_FLAGS) $(ZT_INCLUDES) $(LIBZT_FLAGS) $(LIBZT_INCLUDES) $(LIBZT_FILES) -c
$(CXX) $(CXXFLAGS) $(ZT_DEFS) $(ZT_INCLUDES) $(LIBZT_DEFS) $(LIBZT_INCLUDES) $(LIBZT_FILES) -c
mv *.o obj
$(ARTOOL) $(ARFLAGS) -o $(STATIC_LIB) obj/*.o
@date +"Build script finished on %F %T"
@@ -318,13 +323,13 @@ tests: selftest nativetest ztproxy
ZT_UTILS:=zto/node/Utils.cpp -Izto/node
selftest:
$(CXX) $(CXXFLAGS) -D__SELFTEST__ $(STACK_DRIVER_FLAGS) $(LIBZT_FLAGS) \
$(CXX) $(CXXFLAGS) -D__SELFTEST__ $(STACK_DRIVER_DEFS) $(LIBZT_DEFS) \
$(SANFLAGS) $(LIBZT_INCLUDES) $(ZT_INCLUDES) $(ZT_UTILS) test/selftest.cpp -o \
$(BUILD)/selftest -L$(BUILD) -lzt -lpthread
@./check.sh $(BUILD)/selftest
@date +"Build script finished on %F %T"
nativetest:
$(CXX) $(CXXFLAGS) -D__NATIVETEST__ $(STACK_DRIVER_FLAGS) $(SANFLAGS) \
$(CXX) $(CXXFLAGS) -D__NATIVETEST__ $(STACK_DRIVER_DEFS) $(SANFLAGS) \
$(LIBZT_INCLUDES) $(ZT_INCLUDES) test/selftest.cpp -o $(BUILD)/nativetest
@./check.sh $(BUILD)/nativetest
@date +"Build script finished on %F %T"
@@ -334,7 +339,7 @@ ztproxy:
@./check.sh $(BUILD)/ztproxy
@date +"Build script finished on %F %T"
intercept:
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(STACK_DRIVER_FLAGS) $(LIBZT_INCLUDES) \
$(CXX) $(CXXFLAGS) $(SANFLAGS) $(STACK_DRIVER_DEFS) $(LIBZT_INCLUDES) \
$(ZT_INCLUDES) examples/intercept/intercept.cpp -D_GNU_SOURCE \
-shared -o $(BUILD)/intercept.so $< -ldl
@./check.sh $(BUILD)/intercept.so

25
ext/lwip-contrib/.gitignore vendored Normal file
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@@ -0,0 +1,25 @@
*.o
*.so
*.a
.depend
/ports/unix/unixsim/simhost
/ports/unix/unixsim/simrouter
/ports/unix/unixsim/simnode
/ports/unix/unixsim/makefsdata
/ports/unix/minimal/echop
/ports/win32/msvc/Debug
/ports/win32/lwipcfg_msvc.h
/ports/win32/msvc/Debug unittests
/ports/win32/msvc/Release
/ports/win32/msvc/Release unittests
/ports/win32/msvc/*.user
/ports/win32/msvc/*.ncb
/ports/win32/msvc/*.cache
/ports/win32/msvc/*.suo
/ports/win32/msvc/ipch
/ports/win32/msvc/*.opensdf
/ports/win32/msvc/*.sdf
/ports/unix/check/lwip_unittests
/ports/win32/mingw/*.exe
/ports/win32/mingw/*.map
/ports/win32/mingw/cov-int

47
ext/lwip-contrib/Filelists.mk Normal file
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@@ -0,0 +1,47 @@
#
# 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>
#
# CONTRIBAPPFILES: Contrib Applications.
CONTRIBAPPFILES=$(CONTRIBDIR)/apps/httpserver/httpserver-netconn.c \
$(CONTRIBDIR)/apps/chargen/chargen.c \
$(CONTRIBDIR)/apps/udpecho/udpecho.c \
$(CONTRIBDIR)/apps/tcpecho/tcpecho.c \
$(CONTRIBDIR)/apps/shell/shell.c \
$(CONTRIBDIR)/apps/udpecho_raw/udpecho_raw.c \
$(CONTRIBDIR)/apps/tcpecho_raw/tcpecho_raw.c \
$(CONTRIBDIR)/apps/netio/netio.c \
$(CONTRIBDIR)/apps/ping/ping.c \
$(CONTRIBDIR)/apps/snmp_private_mib/lwip_prvmib.c \
$(CONTRIBDIR)/apps/snmp_v3/snmpv3_dummy.c \
$(CONTRIBDIR)/apps/socket_examples/socket_examples.c \
$(CONTRIBDIR)/apps/rtp/rtp.c \
$(CONTRIBDIR)/addons/tcp_isn/tcp_isn.c \
$(CONTRIBDIR)/addons/ipv6_static_routing/ip6_route_table.c

94
ext/lwip-contrib/ports/Common.allports.mk Normal file
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@@ -0,0 +1,94 @@
#
# 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>
#
#CC=gcc
#CC=clang
CCDEP?=$(CC)
CFLAGS+=-g -Wall -DLWIP_DEBUG -pedantic -Werror \
-Wparentheses -Wsequence-point -Wswitch-default \
-Wextra -Wundef -Wshadow -Wpointer-arith -Wcast-qual \
-Wc++-compat -Wwrite-strings -Wold-style-definition -Wcast-align \
-Wmissing-prototypes -Wredundant-decls -Wnested-externs \
-Wunreachable-code -Wuninitialized
ifeq (,$(findstring clang,$(CC)))
CFLAGS+= -Wlogical-op
# if GCC is newer than 4.8/4.9 you may use:
#CFLAGS:=$(CFLAGS) -fsanitize=address -fstack-protector -fstack-check -fsanitize=undefined -fno-sanitize=alignment
else
# we cannot sanitize alignment on x86-64 targets because clang wants 64 bit alignment
CFLAGS+= -fsanitize=address -fsanitize=undefined -fno-sanitize=alignment -Wdocumentation -Wno-documentation-deprecated-sync
endif
# not used for now but interesting:
# -Wpacked
# -ansi
# -std=c89
CONTRIBDIR?=../../..
ARFLAGS?=rs
#Set this to where you have the lwip core module checked out from git
#default assumes it's a dir named lwip at the same level as the contrib module
LWIPDIR?=$(CONTRIBDIR)/../lwip/src
CFLAGS+=-I. \
-I$(CONTRIBDIR) \
-I$(LWIPDIR)/include \
-I$(LWIPARCH)/include
# Add include path and link to mbedTLS lib if available
MBEDTLSDIR?=$(CONTRIBDIR)/../mbedtls
ifneq (,$(wildcard $(MBEDTLSDIR)/include/mbedtls/*.h))
LDFLAGS+=-L$(MBEDTLSDIR)/library -lmbedtls -lmbedcrypto -lmbedx509
CFLAGS+=-I$(MBEDTLSDIR)/include -Wno-redundant-decls -DLWIP_HAVE_MBEDTLS=1
endif
include $(CONTRIBDIR)/Filelists.mk
include $(LWIPDIR)/Filelists.mk
# LWIPFILES: All the above.
LWIPFILES=$(LWIPNOAPPSFILES) $(ARCHFILES)
LWIPOBJS=$(notdir $(LWIPFILES:.c=.o))
LWIPLIBCOMMON=liblwipcommon.a
$(LWIPLIBCOMMON): $(LWIPOBJS)
$(AR) $(ARFLAGS) $(LWIPLIBCOMMON) $?
APPFILES=$(CONTRIBAPPFILES) $(LWIPAPPFILES)
APPLIB=liblwipapps.a
APPOBJS=$(notdir $(APPFILES:.c=.o))
$(APPLIB): $(APPOBJS)
$(AR) $(ARFLAGS) $(APPLIB) $?
%.o:
$(CC) $(CFLAGS) -c $<

8
ext/lwip-contrib/ports/FILES Normal file
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@@ -0,0 +1,8 @@
unix/ - Architectural files for testing on unix-like systems
(assuming gcc and pthreads).
- Maintained by Kieran Mansley <kieran@recoil.org>
msvc6/ - Architectural files for Microsoft Visual C++ 6.0.
- Maintained by Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>
old/ - Ports that are no longer actively maintained

42
ext/lwip-contrib/ports/unix/Common.mk Normal file
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@@ -0,0 +1,42 @@
#
# 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>
#
# Architecture specific files.
LWIPARCH?=$(CONTRIBDIR)/ports/unix/port
SYSARCH?=$(LWIPARCH)/sys_arch.c
ARCHFILES=$(LWIPARCH)/perf.c $(SYSARCH) $(LWIPARCH)/netif/tapif.c $(LWIPARCH)/netif/tunif.c \
$(LWIPARCH)/netif/unixif.c $(LWIPARCH)/netif/list.c $(LWIPARCH)/netif/tcpdump.c \
$(LWIPARCH)/netif/delif.c $(LWIPARCH)/netif/sio.c $(LWIPARCH)/netif/fifo.c
UNIX_COMMON_MK_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
include $(UNIX_COMMON_MK_DIR)../Common.allports.mk
LDFLAGS+=-pthread -lutil -lrt

52
ext/lwip-contrib/ports/unix/README Normal file
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@@ -0,0 +1,52 @@
This port contains infrastructure and examples for running lwIP on Unix-like
operating systems (Linux, OpenBSD, cygwin). Much of this is targetted towards
testing lwIP applications.
* port/sys_arch.c, port/perf.c, port/include/arch/: Generic platform porting,
for both states of NO_SYS. (Mapping debugging to printf, providing
sys_now & co from the system time etc.)
* check: Runs the unit tests shipped with main lwIP on the Unix port.
* fuzz: Helper application for fuzzing the lwIP stack
* port/netif, port/include/netif: Various network interface implementations and
their helpers, some explicitly for Unix infrastructure, some generic (but most
useful on an easy to debug system):
* delif: Network interface that inserts delay before receiving or sending
packages
* fifo: Helper for sio
* list: Helper for unixif
* pcapif: Network interface that replays packages from a PCAP dump file, and
discards packages sent out from it
* sio: Mapping Unix character devices to lwIP's sio mechanisms
* tapif: Network interface that is mapped to a tap interface (Unix user
space layer 2 network device). Uses lwIP threads.
* tcpdump: Utility functions to dump pbufs into a tcpdump formatted log
file
* tunif: Network interface that is mapped to a tun interface (Unix user
space layer 3 network device). Uses lwIP threads.
* unixif: Network interface that allows lwIP Unix programs to "meet" at Unix
socket address and exchange traffic over it.
* lib: Compiling lwIP as a shared library
* minimal: Standalone example program that runs in NO_SYS=1 mode.
Contains the mintapif network interface implementation, which is similar to
netif/tapif, but runs without threads.
Runs an echo server and SNMP.
* unixsim: Standalone example program that runs in NO_SYS=0 mode. Uses
the tapif network interface.
Runs an HTTP server.

62
ext/lwip-contrib/ports/unix/check/Makefile Normal file
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@@ -0,0 +1,62 @@
#
# 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>
#
all compile: lwip_unittests
.PHONY: all clean check
# The include path to sys_arch.h and lwipopts.h must be first, so this must be before Common.mk
CFLAGS=-DLWIP_NOASSERT_ON_ERROR -I/usr/include/check -I$(LWIPDIR)/../test/unit
# Prevent compiling sys_arch.c of unix port because unit test provide their own port
SYSARCH?=
include ../Common.mk
LDFLAGS:=-lcheck -lm -lsubunit $(LDFLAGS)
TESTDIR=$(LWIPDIR)/../test/unit
include $(TESTDIR)/Filelists.mk
TESTOBJS=$(notdir $(TESTFILES:.c=.o))
clean:
@rm -f *.o $(LWIPLIBCOMMON) $(APPLIB) lwip_unittests *.s .depend* *.core core
depend dep: .depend
include .depend
.depend: $(LWIPFILES) $(APPFILES) $(TESTFILES)
$(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend
lwip_unittests: .depend $(TESTOBJS) $(LWIPLIBCOMMON) $(APPLIB)
$(CC) $(CFLAGS) -o lwip_unittests $(TESTOBJS) -Wl,--start-group $(LWIPLIBCOMMON) $(APPLIB) $(LDFLAGS) -Wl,--end-group
check: lwip_unittests
@./lwip_unittests

8
ext/lwip-contrib/ports/unix/check/README Normal file
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@@ -0,0 +1,8 @@
Helper files to run lwIP unit tests on unix-like systems.
1. Install the check library, through a package manager or from http://check.sourceforge.net/
2. Put the lwip code in a directory called 'lwip' in the same directory as lwip-contrib is
3. Run `make check`
4. Make sure all tests pass

2
ext/lwip-contrib/ports/unix/check/config.h Normal file
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@@ -0,0 +1,2 @@
/* Enable this to simplify debugging */
/* #define LWIP_UNITTESTS_NOFORK */

105
ext/lwip/test/fuzz/Makefile → ext/lwip-contrib/ports/unix/lib/Makefile Executable file → Normal file
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@@ -1,53 +1,52 @@
#
# 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>
#
all compile: lwip_fuzz
.PHONY: all clean
CC=afl-gcc
LDFLAGS=-lm
CFLAGS=-O0
CONTRIBDIR=../../../lwip-contrib
include $(CONTRIBDIR)/ports/unix/Common.mk
clean:
rm -f *.o $(LWIPLIBCOMMON) lwip_fuzz *.s .depend* *.core core
depend dep: .depend
include .depend
.depend: fuzz.c $(LWIPFILES) $(APPFILES)
$(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend
lwip_fuzz: .depend $(LWIPLIBCOMMON) fuzz.o
$(CC) $(CFLAGS) -o lwip_fuzz fuzz.o $(LWIPLIBCOMMON) $(LDFLAGS)
#
# 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>
#
UNIXLIB=liblwip.a
all: $(UNIXLIB)
.PHONY: all
include ../Common.mk
CFLAGS+=-fPIC
clean:
rm -f *.o $(LWIPLIBCOMMON) *.s .depend* *.core core
depend dep: .depend
include .depend
$(UNIXLIB): $(LWIPLIBCOMMON) unixlib.o
$(CC) -g -nostartfiles -shared -o $@ $^
.depend: unixlib.c $(LWIPFILES)
$(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend

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This directory contains an example of how to compile lwIP as a self
initialising shared library on Linux.
Some brief instructions:
* Compile the code:
> make clean all
This should produce liblwip4unixlib.so. This is the shared library.
* Link an application against the shared library
If you're using gcc you can do this by including -llwip4unixlib in
your link command.
* Run your application
Ensure that LD_LIBRARY_PATH includes the directory that contains
liblwip4unixlib.so (ie. this directory)
If you are unsure about shared libraries and libraries on linux in
general, you might find this HOWTO useful:
<http://www.tldp.org/HOWTO/Program-Library-HOWTO/>
Kieran Mansley, October 2002.

419
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/**
* @file
*
* lwIP Options Configuration
*/
/*
* 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: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_LWIPOPTS_H
#define LWIP_LWIPOPTS_H
/*
* Include user defined options first. Anything not defined in these files
* will be set to standard values. Override anything you dont like!
*/
#include "lwipopts.h"
#include "lwip/debug.h"
/*
-----------------------------------------------
---------- Platform specific locking ----------
-----------------------------------------------
*/
/**
* SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
* critical regions during buffer allocation, deallocation and memory
* allocation and deallocation.
*/
#define SYS_LIGHTWEIGHT_PROT 0
/**
* NO_SYS==1: Provides VERY minimal functionality. Otherwise,
* use lwIP facilities.
*/
#define NO_SYS 0
/*
------------------------------------
---------- Memory options ----------
------------------------------------
*/
/**
* MEM_ALIGNMENT: should be set to the alignment of the CPU
* 4 byte alignment -> #define MEM_ALIGNMENT 4
* 2 byte alignment -> #define MEM_ALIGNMENT 2
*/
#define MEM_ALIGNMENT 1U
/**
* MEM_SIZE: the size of the heap memory. If the application will send
* a lot of data that needs to be copied, this should be set high.
*/
#define MEM_SIZE 1600
/*
------------------------------------------------
---------- Internal Memory Pool Sizes ----------
------------------------------------------------
*/
/**
* MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
* If the application sends a lot of data out of ROM (or other static memory),
* this should be set high.
*/
#define MEMP_NUM_PBUF 16
/**
* MEMP_NUM_RAW_PCB: Number of raw connection PCBs
* (requires the LWIP_RAW option)
*/
#define MEMP_NUM_RAW_PCB 4
/**
* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
* per active UDP "connection".
* (requires the LWIP_UDP option)
*/
#define MEMP_NUM_UDP_PCB 4
/**
* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_PCB 4
/**
* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_PCB_LISTEN 4
/**
* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_SEG 16
/**
* MEMP_NUM_REASSDATA: the number of simultaneously IP packets queued for
* reassembly (whole packets, not fragments!)
*/
#define MEMP_NUM_REASSDATA 1
/**
* MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
* packets (pbufs) that are waiting for an ARP request (to resolve
* their destination address) to finish.
* (requires the ARP_QUEUEING option)
*/
#define MEMP_NUM_ARP_QUEUE 2
/**
* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
* (requires NO_SYS==0)
*/
#define MEMP_NUM_SYS_TIMEOUT 3
/**
* MEMP_NUM_NETBUF: the number of struct netbufs.
* (only needed if you use the sequential API, like api_lib.c)
*/
#define MEMP_NUM_NETBUF 2
/**
* MEMP_NUM_NETCONN: the number of struct netconns.
* (only needed if you use the sequential API, like api_lib.c)
*/
#define MEMP_NUM_NETCONN 4
/**
* MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
* for callback/timeout API communication.
* (only needed if you use tcpip.c)
*/
#define MEMP_NUM_TCPIP_MSG_API 8
/**
* MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
* for incoming packets.
* (only needed if you use tcpip.c)
*/
#define MEMP_NUM_TCPIP_MSG_INPKT 8
/**
* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
*/
#define PBUF_POOL_SIZE 8
/*
---------------------------------
---------- ARP options ----------
---------------------------------
*/
/**
* LWIP_ARP==1: Enable ARP functionality.
*/
#define LWIP_ARP 1
/*
--------------------------------
---------- IP options ----------
--------------------------------
*/
/**
* IP_FORWARD==1: Enables the ability to forward IP packets across network
* interfaces. If you are going to run lwIP on a device with only one network
* interface, define this to 0.
*/
#define IP_FORWARD 0
/**
* IP_OPTIONS: Defines the behavior for IP options.
* IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
* IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
*/
#define IP_OPTIONS_ALLOWED 1
/**
* IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
* this option does not affect outgoing packet sizes, which can be controlled
* via IP_FRAG.
*/
#define IP_REASSEMBLY 1
/**
* IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
* that this option does not affect incoming packet sizes, which can be
* controlled via IP_REASSEMBLY.
*/
#define IP_FRAG 1
/**
* IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
* a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
* in this time, the whole packet is discarded.
*/
#define IP_REASS_MAXAGE 3
/**
* IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
* Since the received pbufs are enqueued, be sure to configure
* PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
* packets even if the maximum amount of fragments is enqueued for reassembly!
*/
#define IP_REASS_MAX_PBUFS 4
/**
* IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
* fragmentation. Otherwise pbufs are allocated and reference the original
* packet data to be fragmented.
*/
#define IP_FRAG_USES_STATIC_BUF 0
/**
* IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
*/
#define IP_DEFAULT_TTL 255
/*
----------------------------------
---------- ICMP options ----------
----------------------------------
*/
/**
* LWIP_ICMP==1: Enable ICMP module inside the IP stack.
* Be careful, disable that make your product non-compliant to RFC1122
*/
#define LWIP_ICMP 1
/*
---------------------------------
---------- RAW options ----------
---------------------------------
*/
/**
* LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
*/
#define LWIP_RAW 1
/*
----------------------------------
---------- DHCP options ----------
----------------------------------
*/
/**
* LWIP_DHCP==1: Enable DHCP module.
*/
#define LWIP_DHCP 0
/*
------------------------------------
---------- AUTOIP options ----------
------------------------------------
*/
/**
* LWIP_AUTOIP==1: Enable AUTOIP module.
*/
#define LWIP_AUTOIP 0
/*
----------------------------------
---------- SNMP options ----------
----------------------------------
*/
/**
* LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
* transport.
*/
#define LWIP_SNMP 0
/*
----------------------------------
---------- IGMP options ----------
----------------------------------
*/
/**
* LWIP_IGMP==1: Turn on IGMP module.
*/
#define LWIP_IGMP 0
/*
----------------------------------
---------- DNS options -----------
----------------------------------
*/
/**
* LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
* transport.
*/
#define LWIP_DNS 0
/*
---------------------------------
---------- UDP options ----------
---------------------------------
*/
/**
* LWIP_UDP==1: Turn on UDP.
*/
#define LWIP_UDP 1
/*
---------------------------------
---------- TCP options ----------
---------------------------------
*/
/**
* LWIP_TCP==1: Turn on TCP.
*/
#define LWIP_TCP 1
#define LWIP_LISTEN_BACKLOG 0
/*
----------------------------------
---------- Pbuf options ----------
----------------------------------
*/
/**
* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
* link level header. The default is 14, the standard value for
* Ethernet.
*/
#define PBUF_LINK_HLEN 16
/**
* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is
* designed to accomodate single full size TCP frame in one pbuf, including
* TCP_MSS, IP header, and link header.
*
*/
#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
/*
------------------------------------
---------- LOOPIF options ----------
------------------------------------
*/
/**
* LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
*/
#define LWIP_HAVE_LOOPIF 0
/*
----------------------------------------------
---------- Sequential layer options ----------
----------------------------------------------
*/
/**
* LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
*/
#define LWIP_NETCONN 1
/*
------------------------------------
---------- Socket options ----------
------------------------------------
*/
/**
* LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
*/
#define LWIP_SOCKET 1
/*
----------------------------------------
---------- Statistics options ----------
----------------------------------------
*/
/**
* LWIP_STATS==1: Enable statistics collection in lwip_stats.
*/
#define LWIP_STATS 0
/*
---------------------------------
---------- PPP options ----------
---------------------------------
*/
/**
* PPP_SUPPORT==1: Enable PPP.
*/
#define PPP_SUPPORT 0
/* Misc */
#endif /* LWIP_LWIPOPTS_H */

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/*
* 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.
*
* Author: Kieran Mansley <kjm25@cam.ac.uk>
*
* $Id: unixlib.c,v 1.10 2010/02/17 16:52:30 goldsimon Exp $
*/
/*-----------------------------------------------------------------------------------*/
/* unixlib.c
*
* The initialisation functions for a shared library
*
* You may need to configure this file to your own needs - it is only an example
* of how lwIP can be used as a self initialising shared library.
*
* In particular, you should change the gateway, ipaddr, and netmask to be the values
* you would like the stack to use.
*/
/*-----------------------------------------------------------------------------------*/
#include "lwip/init.h"
#include "lwip/sys.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/pbuf.h"
#include "lwip/tcp.h"
#include "lwip/tcpip.h"
#include "lwip/netif.h"
#include "lwip/stats.h"
#include "lwip/sockets.h"
#include "netif/tapif.h"
struct netif netif;
void _init(void);
void _fini(void);
static void
tcpip_init_done(void *arg)
{
ip_addr_t ipaddr, netmask, gateway;
sys_sem_t *sem;
sem = (sys_sem_t *)arg;
/*
CHANGE THESE to suit your own network configuration:
*/
IP4_ADDR(&gateway, 192,168,1,1);
IP4_ADDR(&ipaddr, 192,168,1,2);
IP4_ADDR(&netmask, 255,255,255,0);
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gateway, NULL, tapif_init,
tcpip_input));
netif_set_up(&netif);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif, 1);
#endif
sys_sem_signal(sem);
}
void _init(void){
sys_sem_t sem;
if(sys_sem_new(&sem, 0) != ERR_OK) {
LWIP_ASSERT("failed to create semaphore", 0);
}
tcpip_init(tcpip_init_done, &sem);
sys_sem_wait(&sem);
sys_sem_free(&sem);
}
void _fini(void){
}

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#
# 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>
#
all ipv4 compile: echop
.PHONY: all
include ../Common.mk
clean:
rm -f *.o $(LWIPLIBCOMMON) $(APPLIB) echop .depend* *.core core
depend dep: .depend
include .depend
.depend: main.c $(LWIPFILES) $(APPFILES)
$(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend
echop: .depend $(LWIPLIBCOMMON) $(APPLIB) main.o $(APPFILES)
$(CC) $(CFLAGS) -o echop main.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS)

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This is an example of a very minimal lwIP project. It runs in a single
thread and runs a single example application - an echo server. The
echo application is implemented using the raw API. Additionally this
raw API example hosts the SNMPv1 agent for development purposes.
In order to run the demo without root priviledges, you can create a
preconfigured tap device in advance and then run the application with the
interface passed in via an environment variable:
$ sudo ip tuntap add dev tap0 mode tap user YOUR-USER-NAME
$ sudo ip a a dev tap0 192.168.0.1/24
$ PRECONFIGURED_TAPIF=tap0 ./echop

440
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/**
* @file
*
* lwIP Options Configuration
*/
/*
* 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: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_LWIPOPTS_H
#define LWIP_LWIPOPTS_H
/*
-----------------------------------------------
---------- Platform specific locking ----------
-----------------------------------------------
*/
/**
* NO_SYS==1: Provides VERY minimal functionality. Otherwise,
* use lwIP facilities.
*/
#define NO_SYS 1
/**
* SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
* critical regions during buffer allocation, deallocation and memory
* allocation and deallocation.
*/
#define SYS_LIGHTWEIGHT_PROT 0
/*
------------------------------------
---------- Memory options ----------
------------------------------------
*/
/**
* MEM_ALIGNMENT: should be set to the alignment of the CPU
* 4 byte alignment -> #define MEM_ALIGNMENT 4
* 2 byte alignment -> #define MEM_ALIGNMENT 2
*/
#define MEM_ALIGNMENT 1U
/**
* MEM_SIZE: the size of the heap memory. If the application will send
* a lot of data that needs to be copied, this should be set high.
*/
#define MEM_SIZE 16000
/*
------------------------------------------------
---------- Internal Memory Pool Sizes ----------
------------------------------------------------
*/
/**
* MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
* If the application sends a lot of data out of ROM (or other static memory),
* this should be set high.
*/
#define MEMP_NUM_PBUF 30
/**
* MEMP_NUM_RAW_PCB: Number of raw connection PCBs
* (requires the LWIP_RAW option)
*/
#define MEMP_NUM_RAW_PCB 4
/**
* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
* per active UDP "connection".
* (requires the LWIP_UDP option)
*/
#define MEMP_NUM_UDP_PCB 4
/**
* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_PCB 2
/**
* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_PCB_LISTEN 8
/**
* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_SEG 16
/**
* MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
* packets (pbufs) that are waiting for an ARP request (to resolve
* their destination address) to finish.
* (requires the ARP_QUEUEING option)
*/
#define MEMP_NUM_ARP_QUEUE 2
/**
* MEMP_NUM_SYS_TIMEOUT: the number of simultaneously active timeouts.
* The default number of timeouts is calculated here for all enabled modules.
* The formula expects settings to be either '0' or '1'.
*
* To this default value, 1 was added for the snmp_increment timer.
*/
#define MEMP_NUM_SYS_TIMEOUT (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT + (LWIP_IPV6 ? (1 + LWIP_IPV6_REASS + LWIP_IPV6_MLD) : 0)) + 1
/**
* MEMP_NUM_NETBUF: the number of struct netbufs.
* (only needed if you use the sequential API, like api_lib.c)
*/
#define MEMP_NUM_NETBUF 0
/**
* MEMP_NUM_NETCONN: the number of struct netconns.
* (only needed if you use the sequential API, like api_lib.c)
*/
#define MEMP_NUM_NETCONN 0
/**
* MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
* for callback/timeout API communication.
* (only needed if you use tcpip.c)
*/
#define MEMP_NUM_TCPIP_MSG_API 0
/**
* MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
* for incoming packets.
* (only needed if you use tcpip.c)
*/
#define MEMP_NUM_TCPIP_MSG_INPKT 0
/**
* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
*/
#define PBUF_POOL_SIZE 32
/*
---------------------------------
---------- ARP options ----------
---------------------------------
*/
/**
* LWIP_ARP==1: Enable ARP functionality.
*/
#define LWIP_ARP 1
/*
--------------------------------
---------- IP options ----------
--------------------------------
*/
/**
* IP_FORWARD==1: Enables the ability to forward IP packets across network
* interfaces. If you are going to run lwIP on a device with only one network
* interface, define this to 0.
*/
#define IP_FORWARD 0
/**
* IP_OPTIONS: Defines the behavior for IP options.
* IP_OPTIONS==0_ALLOWED: All packets with IP options are dropped.
* IP_OPTIONS==1_ALLOWED: IP options are allowed (but not parsed).
*/
#define IP_OPTIONS_ALLOWED 1
/**
* IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
* this option does not affect outgoing packet sizes, which can be controlled
* via IP_FRAG.
*/
#define IP_REASSEMBLY 1
/**
* IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
* that this option does not affect incoming packet sizes, which can be
* controlled via IP_REASSEMBLY.
*/
#define IP_FRAG 1
/**
* IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
* a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
* in this time, the whole packet is discarded.
*/
#define IP_REASS_MAXAGE 3
/**
* IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
* Since the received pbufs are enqueued, be sure to configure
* PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
* packets even if the maximum amount of fragments is enqueued for reassembly!
*/
#define IP_REASS_MAX_PBUFS 10
/**
* IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
* fragmentation. Otherwise pbufs are allocated and reference the original
* packet data to be fragmented.
*/
#define IP_FRAG_USES_STATIC_BUF 0
/**
* IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
*/
#define IP_DEFAULT_TTL 255
/*
----------------------------------
---------- ICMP options ----------
----------------------------------
*/
/**
* LWIP_ICMP==1: Enable ICMP module inside the IP stack.
* Be careful, disable that make your product non-compliant to RFC1122
*/
#define LWIP_ICMP 1
/**
* ICMP_TTL: Default value for Time-To-Live used by ICMP packets.
*/
#define ICMP_TTL (IP_DEFAULT_TTL)
/*
---------------------------------
---------- RAW options ----------
---------------------------------
*/
/**
* LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
*/
#define LWIP_RAW 0
/*
----------------------------------
---------- DHCP options ----------
----------------------------------
*/
/**
* LWIP_DHCP==1: Enable DHCP module.
*/
#define LWIP_DHCP 0
/*
------------------------------------
---------- AUTOIP options ----------
------------------------------------
*/
/**
* LWIP_AUTOIP==1: Enable AUTOIP module.
*/
#define LWIP_AUTOIP 0
/*
----------------------------------
---------- SNMP options ----------
----------------------------------
*/
/**
* LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
* transport.
*/
#define LWIP_SNMP 1
#define LWIP_MIB2_CALLBACKS 0
#define MIB2_STATS 1
/*
----------------------------------
---------- IGMP options ----------
----------------------------------
*/
/**
* LWIP_IGMP==1: Turn on IGMP module.
*/
#define LWIP_IGMP 0
/*
----------------------------------
---------- DNS options -----------
----------------------------------
*/
/**
* LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
* transport.
*/
#define LWIP_DNS 0
/*
---------------------------------
---------- UDP options ----------
---------------------------------
*/
/**
* LWIP_UDP==1: Turn on UDP.
*/
#define LWIP_UDP 1
/**
* LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP)
*/
#define LWIP_UDPLITE 0
/**
* UDP_TTL: Default Time-To-Live value.
*/
#define UDP_TTL (IP_DEFAULT_TTL)
/*
---------------------------------
---------- TCP options ----------
---------------------------------
*/
/**
* LWIP_TCP==1: Turn on TCP.
*/
#define LWIP_TCP 1
/*
----------------------------------
---------- Pbuf options ----------
----------------------------------
*/
/**
* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
* link level header. The default is 14, the standard value for
* Ethernet.
*/
#define PBUF_LINK_HLEN 16
/*
------------------------------------
---------- LOOPIF options ----------
------------------------------------
*/
/**
* LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
*/
#define LWIP_HAVE_LOOPIF 0
/*
----------------------------------------------
---------- Sequential layer options ----------
----------------------------------------------
*/
/**
* LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
*/
#define LWIP_NETCONN 0
/*
------------------------------------
---------- Socket options ----------
------------------------------------
*/
/**
* LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
*/
#define LWIP_SOCKET 0
/*
----------------------------------------
---------- Statistics options ----------
----------------------------------------
*/
/**
* LWIP_STATS==1: Enable statistics collection in lwip_stats.
*/
#define LWIP_STATS 1
/*
---------------------------------------
---------- Debugging options ----------
---------------------------------------
*/
#define TAPIF_DEBUG LWIP_DBG_ON
#define TUNIF_DEBUG LWIP_DBG_OFF
#define UNIXIF_DEBUG LWIP_DBG_OFF
#define DELIF_DEBUG LWIP_DBG_OFF
#define SIO_FIFO_DEBUG LWIP_DBG_OFF
#define TCPDUMP_DEBUG LWIP_DBG_ON
#define API_LIB_DEBUG LWIP_DBG_ON
#define API_MSG_DEBUG LWIP_DBG_ON
#define TCPIP_DEBUG LWIP_DBG_ON
#define NETIF_DEBUG LWIP_DBG_ON
#define SOCKETS_DEBUG LWIP_DBG_ON
#define DEMO_DEBUG LWIP_DBG_ON
#define IP_DEBUG LWIP_DBG_ON
#define IP_REASS_DEBUG LWIP_DBG_ON
#define RAW_DEBUG LWIP_DBG_ON
#define ICMP_DEBUG LWIP_DBG_ON
#define UDP_DEBUG LWIP_DBG_ON
#define TCP_DEBUG LWIP_DBG_ON
#define TCP_INPUT_DEBUG LWIP_DBG_ON
#define TCP_OUTPUT_DEBUG LWIP_DBG_ON
#define TCP_RTO_DEBUG LWIP_DBG_ON
#define TCP_CWND_DEBUG LWIP_DBG_ON
#define TCP_WND_DEBUG LWIP_DBG_ON
#define TCP_FR_DEBUG LWIP_DBG_ON
#define TCP_QLEN_DEBUG LWIP_DBG_ON
#define TCP_RST_DEBUG LWIP_DBG_ON
extern unsigned char debug_flags;
#define LWIP_DBG_TYPES_ON debug_flags
#endif /* LWIP_LWIPOPTS_H */

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/*
* 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>
* RT timer modifications by Christiaan Simons
*/
#include <unistd.h>
#include <getopt.h>
#include <string.h>
#include "lwip/init.h"
#include "lwip/debug.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#include "lwip/stats.h"
#include "lwip/ip.h"
#include "lwip/ip4_frag.h"
#include "lwip/udp.h"
#include "lwip/tcp.h"
#include "netif/tapif.h"
#include "netif/etharp.h"
#include "lwip/apps/snmp.h"
#include "lwip/apps/snmp_mib2.h"
#include "apps/snmp_private_mib/private_mib.h"
#include "apps/udpecho_raw/udpecho_raw.h"
#include "apps/tcpecho_raw/tcpecho_raw.h"
/* (manual) host IP configuration */
static ip4_addr_t ipaddr, netmask, gw;
#if LWIP_SNMP
/* SNMP trap destination cmd option */
static unsigned char trap_flag;
static ip_addr_t trap_addr;
static const struct snmp_mib *mibs[] = {
&mib2,
&mib_private
};
#endif
/* nonstatic debug cmd option, exported in lwipopts.h */
unsigned char debug_flags;
#if LWIP_SNMP
/* enable == 1, disable == 2 */
u8_t snmpauthentraps_set = 2;
#endif
static struct option longopts[] = {
/* turn on debugging output (if build with LWIP_DEBUG) */
{"debug", no_argument, NULL, 'd'},
/* help */
{"help", no_argument, NULL, 'h'},
/* gateway address */
{"gateway", required_argument, NULL, 'g'},
/* ip address */
{"ipaddr", required_argument, NULL, 'i'},
/* netmask */
{"netmask", required_argument, NULL, 'm'},
/* ping destination */
{"trap_destination", required_argument, NULL, 't'},
/* new command line options go here! */
{NULL, 0, NULL, 0}
};
#define NUM_OPTS ((sizeof(longopts) / sizeof(struct option)) - 1)
static void
usage(void)
{
unsigned char i;
printf("options:\n");
for (i = 0; i < NUM_OPTS; i++) {
printf("-%c --%s\n",longopts[i].val, longopts[i].name);
}
}
int
main(int argc, char **argv)
{
struct netif netif;
int ch;
char ip_str[16] = {0}, nm_str[16] = {0}, gw_str[16] = {0};
/* startup defaults (may be overridden by one or more opts) */
IP4_ADDR(&gw, 192,168,0,1);
IP4_ADDR(&ipaddr, 192,168,0,2);
IP4_ADDR(&netmask, 255,255,255,0);
#if LWIP_SNMP
trap_flag = 0;
#endif
/* use debug flags defined by debug.h */
debug_flags = LWIP_DBG_OFF;
while ((ch = getopt_long(argc, argv, "dhg:i:m:t:", longopts, NULL)) != -1) {
switch (ch) {
case 'd':
debug_flags |= (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT);
break;
case 'h':
usage();
exit(0);
break;
case 'g':
ip4addr_aton(optarg, &gw);
break;
case 'i':
ip4addr_aton(optarg, &ipaddr);
break;
case 'm':
ip4addr_aton(optarg, &netmask);
break;
case 't':
#if LWIP_SNMP
trap_flag = !0;
/* @todo: remove this authentraps tweak
when we have proper SET & non-volatile mem */
snmpauthentraps_set = 1;
ipaddr_aton(optarg, &trap_addr);
strncpy(ip_str, ipaddr_ntoa(&trap_addr),sizeof(ip_str));
printf("SNMP trap destination %s\n", ip_str);
#endif
break;
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
strncpy(ip_str, ip4addr_ntoa(&ipaddr), sizeof(ip_str));
strncpy(nm_str, ip4addr_ntoa(&netmask), sizeof(nm_str));
strncpy(gw_str, ip4addr_ntoa(&gw), sizeof(gw_str));
printf("Host at %s mask %s gateway %s\n", ip_str, nm_str, gw_str);
#ifdef PERF
perf_init("/tmp/minimal.perf");
#endif /* PERF */
lwip_init();
printf("TCP/IP initialized.\n");
netif_add(&netif, &ipaddr, &netmask, &gw, NULL, tapif_init, ethernet_input);
netif_set_default(&netif);
netif_set_up(&netif);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif, 1);
#endif
#if LWIP_SNMP
/* initialize our private example MIB */
lwip_privmib_init();
/* snmp_trap_dst_ip_set(0,&trap_addr); */
/* snmp_trap_dst_enable(0,trap_flag); */
#if SNMP_LWIP_MIB2
#if SNMP_USE_NETCONN
snmp_threadsync_init(&snmp_mib2_lwip_locks, snmp_mib2_lwip_synchronizer);
#endif
snmp_mib2_set_syscontact_readonly((const u8_t*)"root", NULL);
snmp_mib2_set_syslocation_readonly((const u8_t*)"lwIP development PC", NULL);
snmp_mib2_set_sysdescr((const u8_t*)"minimal example", NULL);
#endif /* SNMP_LWIP_MIB2 */
/* snmp_set_snmpenableauthentraps(&snmpauthentraps_set); */
snmp_set_mibs(mibs, LWIP_ARRAYSIZE(mibs));
snmp_init();
#endif /* LWIP_SNMP */
udpecho_raw_init();
tcpecho_raw_init();
printf("Applications started.\n");
while (1) {
/* poll netif, pass packet to lwIP */
tapif_select(&netif);
sys_check_timeouts();
}
return 0;
}

135
ext/lwip/test/unit/lwipopts.h → ext/lwip-contrib/ports/unix/port/include/arch/cc.h Executable file → Normal file
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@@ -1,65 +1,70 @@
/*
* 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: Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_LWIPOPTS_H
#define LWIP_HDR_LWIPOPTS_H
/* Prevent having to link sys_arch.c (we don't test the API layers in unit tests) */
#define NO_SYS 1
#define SYS_LIGHTWEIGHT_PROT 0
#define LWIP_NETCONN 0
#define LWIP_SOCKET 0
/* Enable DHCP to test it, disable UDP checksum to easier inject packets */
#define LWIP_DHCP 1
/* Minimal changes to opt.h required for tcp unit tests: */
#define MEM_SIZE 16000
#define TCP_SND_QUEUELEN 40
#define MEMP_NUM_TCP_SEG TCP_SND_QUEUELEN
#define TCP_SND_BUF (12 * TCP_MSS)
#define TCP_WND (10 * TCP_MSS)
#define LWIP_WND_SCALE 1
#define TCP_RCV_SCALE 0
#define PBUF_POOL_SIZE 400 /* pbuf tests need ~200KByte */
/* Enable IGMP and MDNS for MDNS tests */
#define LWIP_IGMP 1
#define LWIP_MDNS_RESPONDER 1
#define LWIP_NUM_NETIF_CLIENT_DATA (LWIP_MDNS_RESPONDER)
/* Minimal changes to opt.h required for etharp unit tests: */
#define ETHARP_SUPPORT_STATIC_ENTRIES 1
/* MIB2 stats are required to check IPv4 reassembly results */
#define MIB2_STATS 1
#endif /* LWIP_HDR_LWIPOPTS_H */
/*
* 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_ARCH_CC_H
#define LWIP_ARCH_CC_H
/* see https://sourceforge.net/p/predef/wiki/OperatingSystems/ */
#if defined __ANDROID__
#define LWIP_UNIX_ANDROID
#elif defined __linux__
#define LWIP_UNIX_LINUX
#elif defined __APPLE__
#define LWIP_UNIX_MACH
#elif defined __OpenBSD__
#define LWIP_UNIX_OPENBSD
#elif defined __CYGWIN__
#define LWIP_UNIX_CYGWIN
#endif
#define LWIP_TIMEVAL_PRIVATE 0
#include <sys/time.h>
#define LWIP_ERRNO_INCLUDE <errno.h>
#define LWIP_RAND() ((u32_t)rand())
/* different handling for unit test, normally not needed */
#ifdef LWIP_NOASSERT_ON_ERROR
#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
handler;}} while(0)
#endif
#if defined(LWIP_UNIX_ANDROID) && defined(FD_SET)
typedef __kernel_fd_set fd_set;
#endif
struct sio_status_s;
typedef struct sio_status_s sio_status_t;
#define sio_fd_t sio_status_t*
#define __sio_fd_t_defined
#endif /* LWIP_ARCH_CC_H */

131
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@@ -1,68 +1,63 @@
/*
* 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: Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_LWIPOPTS_H__
#define LWIP_HDR_LWIPOPTS_H__
/* Prevent having to link sys_arch.c (we don't test the API layers in unit tests) */
#define NO_SYS 1
#define LWIP_NETCONN 0
#define LWIP_SOCKET 0
#define SYS_LIGHTWEIGHT_PROT 0
#define LWIP_IPV6 1
#define IPV6_FRAG_COPYHEADER 1
#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 0
/* Enable DHCP to test it */
#define LWIP_DHCP 1
/* Turn off checksum verification of fuzzed data */
#define CHECKSUM_CHECK_IP 0
#define CHECKSUM_CHECK_UDP 0
#define CHECKSUM_CHECK_TCP 0
#define CHECKSUM_CHECK_ICMP 0
#define CHECKSUM_CHECK_ICMP6 0
/* Minimal changes to opt.h required for tcp unit tests: */
#define MEM_SIZE 16000
#define TCP_SND_QUEUELEN 40
#define MEMP_NUM_TCP_SEG TCP_SND_QUEUELEN
#define TCP_SND_BUF (12 * TCP_MSS)
#define TCP_WND (10 * TCP_MSS)
#define LWIP_WND_SCALE 1
#define TCP_RCV_SCALE 0
#define PBUF_POOL_SIZE 400 /* pbuf tests need ~200KByte */
/* Minimal changes to opt.h required for etharp unit tests: */
#define ETHARP_SUPPORT_STATIC_ENTRIES 1
#endif /* LWIP_HDR_LWIPOPTS_H__ */
/*
* 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_ARCH_PERF_H
#define LWIP_ARCH_PERF_H
#include <sys/times.h>
#ifdef PERF
#define PERF_START { \
unsigned long __c1l, __c1h, __c2l, __c2h; \
__asm__(".byte 0x0f, 0x31" : "=a" (__c1l), "=d" (__c1h))
#define PERF_STOP(x) __asm__(".byte 0x0f, 0x31" : "=a" (__c2l), "=d" (__c2h)); \
perf_print(__c1l, __c1h, __c2l, __c2h, x);}
/*#define PERF_START do { \
struct tms __perf_start, __perf_end; \
times(&__perf_start)
#define PERF_STOP(x) times(&__perf_end); \
perf_print_times(&__perf_start, &__perf_end, x);\
} while(0)*/
#else /* PERF */
#define PERF_START /* null definition */
#define PERF_STOP(x) /* null definition */
#endif /* PERF */
void perf_print(unsigned long c1l, unsigned long c1h,
unsigned long c2l, unsigned long c2h,
char *key);
void perf_print_times(struct tms *start, struct tms *end, char *key);
void perf_init(char *fname);
#endif /* LWIP_ARCH_PERF_H */

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/*
* 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_ARCH_SYS_ARCH_H
#define LWIP_ARCH_SYS_ARCH_H
#define SYS_MBOX_NULL NULL
#define SYS_SEM_NULL NULL
typedef u32_t sys_prot_t;
struct sys_sem;
typedef struct sys_sem * sys_sem_t;
#define sys_sem_valid(sem) (((sem) != NULL) && (*(sem) != NULL))
#define sys_sem_valid_val(sem) ((sem) != NULL)
#define sys_sem_set_invalid(sem) do { if((sem) != NULL) { *(sem) = NULL; }}while(0)
#define sys_sem_set_invalid_val(sem) do { (sem) = NULL; }while(0)
struct sys_mutex;
typedef struct sys_mutex * sys_mutex_t;
#define sys_mutex_valid(mutex) sys_sem_valid(mutex)
#define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex)
struct sys_mbox;
typedef struct sys_mbox * sys_mbox_t;
#define sys_mbox_valid(mbox) sys_sem_valid(mbox)
#define sys_mbox_valid_val(mbox) sys_sem_valid_val(mbox)
#define sys_mbox_set_invalid(mbox) sys_sem_set_invalid(mbox)
#define sys_mbox_set_invalid_val(mbox) sys_sem_set_invalid_val(mbox)
struct sys_thread;
typedef struct sys_thread * sys_thread_t;
#endif /* LWIP_ARCH_SYS_ARCH_H */

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/*
* 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_DELIF_H
#define LWIP_DELIF_H
#include "lwip/netif.h"
#include "lwip/pbuf.h"
err_t delif_init(struct netif *netif);
err_t delif_init_thread(struct netif *netif);
#endif /* LWIP_DELIF_H */

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/*
* 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_DROPIF_H
#define LWIP_DROPIF_H
#include "lwip/netif.h"
#include "lwip/pbuf.h"
err_t dropif_init(struct netif *netif);
#endif /* LWIP_DROPIF_H */

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#ifndef FIFO_H
#define FIFO_H
#include "lwip/sys.h"
/** How many bytes in fifo */
#define FIFOSIZE 2048
/** fifo data structure, this one is passed to all fifo functions */
typedef struct fifo_t {
u8_t data[FIFOSIZE+10]; /* data segment, +10 is a hack probably not needed.. FIXME! */
int dataslot; /* index to next char to be read */
int emptyslot; /* index to next empty slot */
int len; /* len probably not needed, may be calculated from dataslot and emptyslot in conjunction with FIFOSIZE */
sys_sem_t sem; /* semaphore protecting simultaneous data manipulation */
sys_sem_t getSem; /* sepaphore used to signal new data if getWaiting is set */
u8_t getWaiting; /* flag used to indicate that fifoget is waiting for data. fifoput is suposed to clear */
/* this flag prior to signaling the getSem semaphore */
} fifo_t;
/**
* Get a character from fifo
* Blocking call.
* @param fifo pointer to fifo data structure
* @return character read from fifo
*/
u8_t fifoGet(fifo_t * fifo);
/**
* Get a character from fifo
* Non blocking call.
* @param fifo pointer to fifo data structure
* @return character read from fifo, or < zero if non was available
*/
s16_t fifoGetNonBlock(fifo_t * fifo);
/**
* fifoput is called by the signalhandler when new data has arrived (or some other event is indicated)
* fifoput reads directly from the serialport and is thus highly dependent on unix arch at this moment
* @param fifo pointer to fifo data structure
* @param fd unix file descriptor
*/
void fifoPut(fifo_t * fifo, int fd);
/**
* fifoinit initiate fifo
* @param fifo pointer to fifo data structure, allocated by the user
*/
void fifoInit(fifo_t * fifo);
#endif

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#ifndef LWIP_LIST_H
#define LWIP_LIST_H
struct elem;
struct list {
struct elem *first, *last;
int size, elems;
};
struct elem {
struct elem *next;
void *data;
};
struct list *list_new(int size);
int list_push(struct list *list, void *data);
void *list_pop(struct list *list);
void *list_first(struct list *list);
int list_elems(struct list *list);
void list_delete(struct list *list);
int list_remove(struct list *list, void *elem);
void list_map(struct list *list, void (* func)(void *arg));
#endif

72
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/*
* 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>
*
*/
/*
* 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_PCAPIF_H
#define LWIP_PCAPIF_H
#include "lwip/netif.h"
err_t pcapif_init(struct netif *netif);
#endif /* LWIP_PCAPIF_H */

60
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#ifndef SIO_UNIX_H
#define SIO_UNIX_H
#include "lwip/sys.h"
#include "lwip/netif.h"
#include "netif/fifo.h"
/*#include "netif/pppif.h"*/
struct sio_status_s {
int fd;
fifo_t myfifo;
};
/* BAUDRATE is defined in sio.c as it is implementation specific */
/** Baudrates */
typedef enum sioBaudrates {
SIO_BAUD_9600,
SIO_BAUD_19200,
SIO_BAUD_38400,
SIO_BAUD_57600,
SIO_BAUD_115200
} sioBaudrates;
/**
* Poll for a new character from incoming data stream
* @param siostat siostatus struct, contains sio instance data, given by sio_open
* @return char read from input stream, or < 0 if no char was available
*/
s16_t sio_poll(sio_status_t * siostat);
/**
* Parse incoming characters until a string str is recieved, blocking call
* @param str zero terminated string to expect
* @param siostat siostatus struct, contains sio instance data, given by sio_open
*/
void sio_expect_string(u8_t *str, sio_status_t * siostat);
/**
* Write a char to output data stream
* @param str pointer to a zero terminated string
* @param siostat siostatus struct, contains sio instance data, given by sio_open
*/
void sio_send_string(u8_t *str, sio_status_t * siostat);
/**
* Flush outbuffer (send everything in buffer now), useful if some layer below is
* holding on to data, waitng to fill a buffer
* @param siostat siostatus struct, contains sio instance data, given by sio_open
*/
void sio_flush( sio_status_t * siostat );
/**
* Change baudrate of port, may close and reopen port
* @param baud new baudrate
* @param siostat siostatus struct, contains sio instance data, given by sio_open
*/
void sio_change_baud( sioBaudrates baud, sio_status_t * siostat );
#endif

42
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/*
* 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_TAPIF_H
#define LWIP_TAPIF_H
#include "lwip/netif.h"
err_t tapif_init(struct netif *netif);
#if NO_SYS
int tapif_select(struct netif *netif);
#endif /* NO_SYS */
#endif /* LWIP_TAPIF_H */

41
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/*
* 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_NETIF_TCPDUMP_H
#define LWIP_NETIF_TCPDUMP_H
struct pbuf;
struct netif;
void tcpdump_init(void);
void tcpdump(struct pbuf *p, struct netif *netif);
#endif /* LWIP_NETIF_TCPDUMP_H */

41
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/*
* 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_TUNIF_H
#define LWIP_TUNIF_H
#include "lwip/netif.h"
#include "lwip/pbuf.h"
err_t tunif_init(struct netif *netif);
#endif /* LWIP_TUNIF_H */

40
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/*
* 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_UNIXIF_H
#define LWIP_UNIXIF_H
#include "lwip/netif.h"
err_t unixif_init_server(struct netif *netif);
err_t unixif_init_client(struct netif *netif);
#endif /* LWIP_UNIXIF_H */

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/*
* 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/opt.h"
#include "lwip/pbuf.h"
#if !NO_SYS
#include "lwip/debug.h"
#include <stdlib.h>
#include "lwip/def.h"
#include "netif/delif.h"
#ifdef LWIP_UNIX_LINUX
#include "netif/tapif.h"
#else /* LWIP_UNIX_LINUX */
#include "netif/tunif.h"
#endif /* LWIP_UNIX_LINUX */
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#ifndef DELIF_DEBUG
#define DELIF_DEBUG LWIP_DBG_OFF
#endif
#define DELIF_INPUT_DROPRATE 0.1
#define DELIF_OUTPUT_DROPRATE 0.1
#define DELIF_INPUT_DELAY 500 /* Miliseconds. */
#define DELIF_OUTPUT_DELAY 500 /* Miliseconds. */
#define DELIF_TIMEOUT 10
struct delif {
err_t (* input)(struct pbuf *p, struct netif *inp);
struct netif *netif;
};
struct delif_pbuf {
struct delif_pbuf *next;
struct pbuf *p;
ip_addr_t ipaddr;
unsigned int time;
};
static struct delif_pbuf *input_list = NULL;
static struct delif_pbuf *output_list = NULL;
/*-----------------------------------------------------------------------------------*/
static void
delif_input_timeout(void *arg)
{
struct netif *netif;
struct delif *delif;
struct delif_pbuf *dp;
unsigned int timeout, now;
timeout = DELIF_TIMEOUT;
netif = (struct netif*)arg;
delif = (struct delif*)netif->state;
/* Check if there is anything on the input list. */
dp = input_list;
while (dp != NULL) {
now = sys_now();
if (dp->time <= now) {
delif->input(dp->p, netif);
if (dp->next != NULL) {
if (dp->next->time > now) {
timeout = dp->next->time - now;
} else {
timeout = 0;
}
LWIP_DEBUGF(DELIF_DEBUG, ("delif_output_timeout: timeout %u.\n", timeout));
}
input_list = dp->next;
free(dp);
dp = input_list;
} else {
dp = dp->next;
}
}
sys_timeout(timeout, delif_input_timeout, arg);
}
/*-----------------------------------------------------------------------------------*/
static void
delif_output_timeout(void *arg)
{
struct netif *netif;
struct delif *delif;
struct delif_pbuf *dp;
unsigned int timeout, now;
timeout = DELIF_TIMEOUT;
netif = (struct netif*)arg;
delif = (struct delif*)netif->state;
/* Check if there is anything on the output list. */
dp = output_list;
while (dp != NULL) {
now = sys_now();
if (dp->time <= now) {
LWIP_DEBUGF(DELIF_DEBUG, ("delif_output_timeout: now %u dp->time %u\n",
now, dp->time));
#if LWIP_IPV4
if(!IP_IS_V6_VAL(dp->ipaddr)) {
delif->netif->output(delif->netif, dp->p, ip_2_ip4(&dp->ipaddr));
}
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
if(IP_IS_V6_VAL(dp->ipaddr)) {
delif->netif->output_ip6(delif->netif, dp->p, ip_2_ip6(&dp->ipaddr));
}
#endif /* LWIP_IPV6 */
if (dp->next != NULL) {
if (dp->next->time > now) {
timeout = dp->next->time - now;
} else {
timeout = 0;
}
LWIP_DEBUGF(DELIF_DEBUG, ("delif_output_timeout: timeout %u.\n", timeout));
}
pbuf_free(dp->p);
output_list = dp->next;
free(dp);
dp = output_list;
} else {
dp = dp->next;
}
}
sys_timeout(timeout, delif_output_timeout, arg);
}
/*-----------------------------------------------------------------------------------*/
static err_t
delif_output(struct netif *netif, struct pbuf *p, const ip_addr_t *ipaddr)
{
struct delif_pbuf *dp, *np;
char *data;
LWIP_UNUSED_ARG(netif);
LWIP_DEBUGF(DELIF_DEBUG, ("delif_output\n"));
#ifdef DELIF_OUTPUT_DROPRATE
if (((double)rand()/(double)RAND_MAX) < DELIF_OUTPUT_DROPRATE) {
LWIP_DEBUGF(DELIF_DEBUG, ("delif_output: Packet dropped\n"));
return ERR_BUF;
}
#endif /* DELIF_OUTPUT_DROPRATE */
LWIP_DEBUGF(DELIF_DEBUG, ("delif_output\n"));
dp = (struct delif_pbuf*)malloc(sizeof(struct delif_pbuf));
data = (char*)malloc(p->tot_len);
pbuf_copy_partial(p, data, p->tot_len, 0);
dp->p = pbuf_alloc(PBUF_LINK, 0, PBUF_ROM);
dp->p->payload = data;
dp->p->len = p->tot_len;
dp->p->tot_len = p->tot_len;
dp->ipaddr = *ipaddr;
dp->time = sys_now() + DELIF_OUTPUT_DELAY;
dp->next = NULL;
if (output_list == NULL) {
output_list = dp;
} else {
for(np = output_list; np->next != NULL; np = np->next);
np->next = dp;
}
return ERR_OK;
}
#if LWIP_IPV4
static err_t
delif_output4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr)
{
ip_addr_t ip;
if (ipaddr != NULL) {
ip_addr_copy_from_ip4(ip, *ipaddr);
} else {
ip = *IP_ADDR_ANY;
}
return delif_output(netif, p, &ip);
}
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
static err_t
delif_output6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr)
{
ip_addr_t ip;
if (ipaddr != NULL) {
ip_addr_copy_from_ip6(ip, *ipaddr);
} else {
ip = *IP6_ADDR_ANY;
}
return delif_output(netif, p, &ip);
}
#endif /* LWIP_IPV6 */
/*-----------------------------------------------------------------------------------*/
static err_t
delif_input(struct pbuf *p, struct netif *inp)
{
struct delif_pbuf *dp, *np;
LWIP_UNUSED_ARG(inp);
LWIP_DEBUGF(DELIF_DEBUG, ("delif_input\n"));
#ifdef DELIF_INPUT_DROPRATE
if (((double)rand()/(double)RAND_MAX) < DELIF_INPUT_DROPRATE) {
LWIP_DEBUGF(DELIF_DEBUG, ("delif_input: Packet dropped\n"));
pbuf_free(p);
return ERR_OK;
}
#endif /* DELIF_INPUT_DROPRATE */
dp = (struct delif_pbuf*)malloc(sizeof(struct delif_pbuf));
dp->p = p;
dp->time = sys_now() + DELIF_INPUT_DELAY;
dp->next = NULL;
if (input_list == NULL) {
input_list = dp;
} else {
for(np = input_list; np->next != NULL; np = np->next);
np->next = dp;
}
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
err_t
delif_init(struct netif *netif)
{
struct delif *del;
del = (struct delif*)malloc(sizeof(struct delif));
if (!del) {
return ERR_MEM;
}
netif->state = del;
netif->name[0] = 'd';
netif->name[1] = 'e';
#if LWIP_IPV4
netif->output = delif_output4;
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
netif->output_ip6 = delif_output6;
#endif /* LWIP_IPV6 */
del->netif = (struct netif*)malloc(sizeof(struct netif));
if (!del->netif) {
free(del);
return ERR_MEM;
}
#ifdef LWIP_UNIX_LINUX
tapif_init(del->netif);
#else /* LWIP_UNIX_LINUX */
tunif_init(del->netif);
#endif /* LWIP_UNIX_LINUX */
del->input = netif->input;
del->netif->input = delif_input;
sys_timeout(DELIF_TIMEOUT, delif_input_timeout, netif);
sys_timeout(DELIF_TIMEOUT, delif_output_timeout, netif);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
static void
delif_thread(void *arg)
{
struct netif *netif = (struct netif*)arg;
struct delif *del;
sys_sem_t sem;
del = (struct delif*)netif->state;
#ifdef LWIP_UNIX_LINUX
tapif_init(del->netif);
#else /* LWIP_UNIX_LINUX */
tunif_init(del->netif);
#endif /* LWIP_UNIX_LINUX */
sys_timeout(DELIF_TIMEOUT, delif_input_timeout, netif);
sys_timeout(DELIF_TIMEOUT, delif_output_timeout, netif);
if(sys_sem_new(&sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
sys_sem_wait(&sem);
}
/*-----------------------------------------------------------------------------------*/
err_t
delif_init_thread(struct netif *netif)
{
struct delif *del;
LWIP_DEBUGF(DELIF_DEBUG, ("delif_init_thread\n"));
del = (struct delif*)malloc(sizeof(struct delif));
if (!del) {
return ERR_MEM;
}
netif->state = del;
netif->name[0] = 'd';
netif->name[1] = 'e';
del->netif = (struct netif*)malloc(sizeof(struct netif));
if (!del->netif) {
free(del);
return ERR_MEM;
}
#if LWIP_IPV4
netif->output = delif_output4;
netif_set_addr(del->netif, netif_ip4_addr(netif), netif_ip4_netmask(netif), netif_ip4_gw(netif));
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
{
s8_t i;
netif->output_ip6 = delif_output6;
for(i=0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
netif_ip6_addr_set(del->netif, i, netif_ip6_addr(netif, i));
}
}
#endif /* LWIP_IPV6 */
del->input = netif->input;
del->netif->input = delif_input;
sys_thread_new("delif_thread", delif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
#endif /* !NO_SYS */

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/* Author: Magnus Ivarsson <magnus.ivarsson@volvo.com> */
/* ---------------------------------------------- */
/* --- fifo 4 unix ------------------------------ */
/* ---------------------------------------------- */
#include "lwip/err.h"
#include "netif/fifo.h"
#include "lwip/debug.h"
#include "lwip/def.h"
#include "lwip/sys.h"
#include "lwip/arch.h"
#include <unistd.h>
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef SIO_FIFO_DEBUG
#define SIO_FIFO_DEBUG LWIP_DBG_OFF
#endif
u8_t fifoGet(fifo_t * fifo)
{
u8_t c;
sys_sem_wait(&fifo->sem); /* enter critical section */
if (fifo->dataslot == fifo->emptyslot)
{
fifo->getWaiting = TRUE; /* tell putFifo to signal us when data is available */
sys_sem_signal(&fifo->sem); /* leave critical section (allow input from serial port..) */
sys_sem_wait(&fifo->getSem); /* wait 4 data */
sys_sem_wait(&fifo->sem); /* reenter critical section */
}
c = fifo->data[fifo->dataslot++];
fifo->len--;
if (fifo->dataslot == FIFOSIZE)
{
fifo->dataslot = 0;
}
sys_sem_signal(&fifo->sem); /* leave critical section */
return c;
}
s16_t fifoGetNonBlock(fifo_t * fifo)
{
u16_t c;
sys_sem_wait(&fifo->sem); /* enter critical section */
if (fifo->dataslot == fifo->emptyslot)
{
/* empty fifo */
c = -1;
}
else
{
c = fifo->data[fifo->dataslot++];
fifo->len--;
if (fifo->dataslot == FIFOSIZE)
{
fifo->dataslot = 0;
}
}
sys_sem_signal(&fifo->sem); /* leave critical section */
return c;
}
void fifoPut(fifo_t * fifo, int fd)
{
/* FIXME: mutex around struct data.. */
int cnt=0;
sys_sem_wait(&fifo->sem ); /* enter critical */
LWIP_DEBUGF( SIO_FIFO_DEBUG,("fifoput: len%d dat%d empt%d --> ", fifo->len, fifo->dataslot, fifo->emptyslot ) );
if ( fifo->emptyslot < fifo->dataslot )
{
cnt = read( fd, &fifo->data[fifo->emptyslot], fifo->dataslot - fifo->emptyslot );
}
else
{
cnt = read( fd, &fifo->data[fifo->emptyslot], FIFOSIZE-fifo->emptyslot );
}
fifo->emptyslot += cnt;
fifo->len += cnt;
LWIP_DEBUGF( SIO_FIFO_DEBUG,("len%d dat%d empt%d\n", fifo->len, fifo->dataslot, fifo->emptyslot ) );
if ( fifo->len > FIFOSIZE )
{
printf( "ERROR: fifo overrun detected len=%d, flushing\n", fifo->len );
fifo->dataslot = 0;
fifo->emptyslot = 0;
fifo->len = 0;
}
if ( fifo->emptyslot == FIFOSIZE )
{
fifo->emptyslot = 0;
LWIP_DEBUGF( SIO_FIFO_DEBUG, ("(WRAP) ") );
sys_sem_signal(&fifo->sem ); /* leave critical */
fifoPut( fifo, fd );
return;
}
if ( fifo->getWaiting )
{
fifo->getWaiting = FALSE;
sys_sem_signal(&fifo->getSem );
}
sys_sem_signal(&fifo->sem ); /* leave critical */
return;
}
void fifoInit(fifo_t * fifo)
{
fifo->dataslot = 0;
fifo->emptyslot = 0;
fifo->len = 0;
if(sys_sem_new(&fifo->sem, 1) != ERR_OK) { /* critical section 1=free to enter */
LWIP_ASSERT("Failed to create semaphore", 0);
}
if(sys_sem_new(&fifo->getSem, 0) != ERR_OK) { /* 0 = no one waiting */
LWIP_ASSERT("Failed to create semaphore", 0);
}
fifo->getWaiting = FALSE;
}

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/*
* 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 <stdlib.h>
#include <netif/list.h>
/*-----------------------------------------------------------------------------------*/
struct list *
list_new(int size)
{
struct list *list;
list = (struct list *)malloc(sizeof(struct list));
list->first = list->last = NULL;
list->size = size;
list->elems = 0;
return list;
}
/*-----------------------------------------------------------------------------------*/
int
list_push(struct list *list, void *data)
{
struct elem *elem;
if (list->elems < list->size) {
elem = (struct elem *)malloc(sizeof(struct elem));
elem->data = data;
elem->next = NULL;
if (list->last != NULL) {
list->last->next = elem;
}
list->last = elem;
if (list->first == NULL) {
list->first = elem;
}
list->elems++;
return 1;
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
void *
list_pop(struct list *list)
{
struct elem *elem;
void *data;
if (list->elems > 0) {
elem = list->first;
if (elem == list->last) {
list->last = elem->next;
}
list->first = elem->next;
list->elems--;
data = elem->data;
free(elem);
return data;
}
return NULL;
}
/*-----------------------------------------------------------------------------------*/
void *
list_first(struct list *list)
{
return list->first;
}
/*-----------------------------------------------------------------------------------*/
int
list_elems(struct list *list)
{
return list->elems;
}
/*-----------------------------------------------------------------------------------*/
void
list_delete(struct list *list)
{
while (list_pop(list) != NULL);
free(list);
}
/*-----------------------------------------------------------------------------------*/
int
list_remove(struct list *list, void *elem)
{
struct elem *e, *p;
p = NULL;
for(e = list->first; e != NULL; e = e->next) {
if (e->data == elem) {
if (p != NULL) {
p->next = e->next;
} else {
list->first = e->next;
}
if (list->last == e) {
list->last = p;
if (p != NULL) {
p->next = NULL;
}
}
free(e);
list->elems--;
return 1;
}
p = e;
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
void
list_map(struct list *list, void (* func)(void *arg))
{
struct elem *e;
for(e = list->first; e != NULL; e = e->next) {
func(e->data);
}
}
/*-----------------------------------------------------------------------------------*/

216
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/*
* 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 linux /* Apparently, this doesn't work under Linux. */
#include "lwip/debug.h"
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <pcap.h>
#include "netif/etharp.h"
#include "lwip/stats.h"
#include "lwip/def.h"
#include "lwip/mem.h"
#include "lwip/pbuf.h"
#include "netif/unixif.h"
#include "lwip/sys.h"
#include "lwip/ip.h"
#if defined(LWIP_DEBUG) && defined(LWIP_TCPDUMP)
#include "netif/tcpdump.h"
#endif /* LWIP_DEBUG && LWIP_TCPDUMP */
struct pcapif {
pcap_t *pd;
sys_sem_t sem;
u8_t pkt[2048];
u32_t len;
u32_t lasttime;
struct pbuf *p;
struct eth_addr *ethaddr;
};
static char errbuf[PCAP_ERRBUF_SIZE];
/*-----------------------------------------------------------------------------------*/
static err_t
pcapif_output(struct netif *netif, struct pbuf *p,
ip_addr_t *ipaddr)
{
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
static void
timeout(void *arg)
{
struct netif *netif;
struct pcapif *pcapif;
struct pbuf *p;
struct eth_hdr *ethhdr;
netif = (struct netif *)arg;
pcapif = netif->state;
ethhdr = (struct eth_hdr *)pcapif->pkt;
if (lwip_htons(ethhdr->type) != ETHTYPE_IP ||
ip_lookup(pcapif->pkt + 14, netif)) {
/* We allocate a pbuf chain of pbufs from the pool. */
p = pbuf_alloc(PBUF_LINK, pcapif->len, PBUF_POOL);
if (p != NULL) {
pbuf_take(p, pcapif->pkt, pcapif->len);
#if defined(LWIP_DEBUG) && defined(LWIP_TCPDUMP)
tcpdump(p, netif);
#endif /* LWIP_DEBUG && LWIP_TCPDUMP */
ethhdr = p->payload;
switch (lwip_htons(ethhdr->type)) {
/* IP or ARP packet? */
case ETHTYPE_IP:
case ETHTYPE_ARP:
#if PPPOE_SUPPORT
/* PPPoE packet? */
case ETHTYPE_PPPOEDISC:
case ETHTYPE_PPPOE:
#endif /* PPPOE_SUPPORT */
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif) != ERR_OK) {
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
p = NULL;
}
break;
default:
pbuf_free(p);
break;
}
}
} else {
printf("ip_lookup dropped\n");
}
sys_sem_signal(&pcapif->sem);
}
/*-----------------------------------------------------------------------------------*/
static void
callback(u_char *arg, const struct pcap_pkthdr *hdr, const u_char *pkt)
{
struct netif *netif;
struct pcapif *pcapif;
u32_t time, lasttime;
netif = (struct netif *)arg;
pcapif = netif->state;
pcapif->len = hdr->len;
bcopy(pkt, pcapif->pkt, hdr->len);
time = hdr->ts.tv_sec * 1000 + hdr->ts.tv_usec / 1000;
lasttime = pcapif->lasttime;
pcapif->lasttime = time;
if (lasttime == 0) {
sys_timeout(1000, timeout, netif);
} else {
sys_timeout(time - lasttime, timeout, netif);
}
}
/*-----------------------------------------------------------------------------------*/
static void
pcapif_thread(void *arg)
{
struct netif *netif;
struct pcapif *pcapif;
netif = arg;
pcapif = netif->state;
while (1) {
pcap_loop(pcapif->pd, 1, callback, (u_char *)netif);
sys_sem_wait(&pcapif->sem);
if (pcapif->p != NULL) {
netif->input(pcapif->p, netif);
}
}
}
/*-----------------------------------------------------------------------------------*/
err_t
pcapif_init(struct netif *netif)
{
struct pcapif *p;
p = malloc(sizeof(struct pcapif));
if (p == NULL)
return ERR_MEM;
netif->state = p;
netif->name[0] = 'p';
netif->name[1] = 'c';
netif->output = pcapif_output;
p->pd = pcap_open_offline("pcapdump", errbuf);
if (p->pd == NULL) {
printf("pcapif_init: failed %s\n", errbuf);
return ERR_IF;
}
if(sys_sem_new(&p->sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
p->p = NULL;
p->lasttime = 0;
sys_thread_new("pcapif_thread", pcapif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
#endif /* linux */

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/* Author: Magnus Ivarsson <magnus.ivarsson@volvo.com> */
/* to get rid of implicit function declarations */
#define _XOPEN_SOURCE 600
#define _GNU_SOURCE
#include "netif/sio.h"
#include "netif/fifo.h"
#include "lwip/debug.h"
#include "lwip/def.h"
#include "lwip/sys.h"
#include "lwip/arch.h"
#include "lwip/sio.h"
#include "netif/ppp/ppp_opts.h"
/* Following #undefs are here to keep compiler from issuing warnings
about them being double defined. (They are defined in lwip/inet.h
as well as the Unix #includes below.) */
#undef htonl
#undef ntohl
#undef htons
#undef ntohs
#undef HTONL
#undef NTOHL
#undef HTONS
#undef NTOHS
#include <stdlib.h>
#include <stdio.h>
#if defined(LWIP_UNIX_OPENBSD)
#include <util.h>
#endif
#include <termios.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
#include <sys/signal.h>
#include <sys/types.h>
#ifndef LWIP_HAVE_SLIPIF
#define LWIP_HAVE_SLIPIF 0
#endif
#if (PPP_SUPPORT || LWIP_HAVE_SLIPIF) && defined(LWIP_UNIX_LINUX)
#include <pty.h>
#endif
/*#define BAUDRATE B19200 */
/*#define BAUDRATE B57600 */
#define BAUDRATE B115200
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
/* for all of you who dont define SIO_DEBUG in debug.h */
#ifndef SIO_DEBUG
#define SIO_DEBUG 0
#endif
/* typedef struct siostruct_t */
/* { */
/* sio_status_t *sio; */
/* } siostruct_t; */
/** array of ((siostruct*)netif->state)->sio structs */
static sio_status_t statusar[4];
#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF)
/* --private-functions----------------------------------------------------------------- */
/**
* Signal handler for ttyXX0 to indicate bytes received
* one per interface is needed since we cannot send a instance number / pointer as callback argument (?)
*/
static void signal_handler_IO_0( int status )
{
LWIP_UNUSED_ARG(status);
LWIP_DEBUGF(SIO_DEBUG, ("SigHand: rxSignal channel 0\n"));
fifoPut( &statusar[0].myfifo, statusar[0].fd );
}
/**
* Signal handler for ttyXX1 to indicate bytes received
* one per interface is needed since we cannot send a instance number / pointer as callback argument (?)
*/
static void signal_handler_IO_1( int status )
{
LWIP_UNUSED_ARG(status);
LWIP_DEBUGF(SIO_DEBUG, ("SigHand: rxSignal channel 1\n"));
fifoPut( &statusar[1].myfifo, statusar[1].fd );
}
#endif /* ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */
/**
* Initiation of serial device
* @param device string with the device name and path, eg. "/dev/ttyS0"
* @param devnum device number
* @param siostat status
* @return file handle to serial dev.
*/
static int sio_init( char * device, int devnum, sio_status_t * siostat )
{
struct termios oldtio,newtio;
#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF)
struct sigaction saio; /* definition of signal action */
#endif
int fd;
LWIP_UNUSED_ARG(siostat);
LWIP_UNUSED_ARG(devnum);
/* open the device to be non-blocking (read will return immediately) */
fd = open( device, O_RDWR | O_NOCTTY | O_NONBLOCK );
if ( fd < 0 )
{
perror( device );
exit( -1 );
}
#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF)
/* install the signal handler before making the device asynchronous */
switch ( devnum )
{
case 0:
LWIP_DEBUGF( SIO_DEBUG, ("sioinit, signal_handler_IO_0\n") );
saio.sa_handler = signal_handler_IO_0;
break;
case 1:
LWIP_DEBUGF( SIO_DEBUG, ("sioinit, signal_handler_IO_1\n") );
saio.sa_handler = signal_handler_IO_1;
break;
default:
LWIP_DEBUGF( SIO_DEBUG,("sioinit, devnum not allowed\n") );
break;
}
saio.sa_flags = 0;
#if defined(LWIP_UNIX_LINUX)
saio.sa_restorer = NULL;
#endif /* LWIP_UNIX_LINUX */
sigaction( SIGIO,&saio,NULL );
/* allow the process to receive SIGIO */
if ( fcntl( fd, F_SETOWN, getpid( ) ) != 0)
{
perror( device );
exit( -1 );
}
/* Make the file descriptor asynchronous (the manual page says only
O_APPEND and O_NONBLOCK, will work with F_SETFL...) */
if ( fcntl( fd, F_SETFL, FASYNC ) != 0)
{
perror( device );
exit( -1 );
}
#else
if ( fcntl( fd, F_SETFL, 0 ) != 0)
{
perror( device );
exit( -1 );
}
#endif /* ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */
tcgetattr( fd,&oldtio ); /* save current port settings */
/* set new port settings */
/* see 'man termios' for further settings */
memset(&newtio, 0, sizeof(newtio));
newtio.c_cflag = BAUDRATE | CS8 | CLOCAL | CREAD | CRTSCTS;
newtio.c_iflag = 0;
newtio.c_oflag = 0;
newtio.c_lflag = 0; /*ECHO; */
newtio.c_cc[VMIN] = 1; /* Read 1 byte at a time, no timer */
newtio.c_cc[VTIME] = 0;
tcsetattr( fd,TCSANOW,&newtio );
tcflush( fd, TCIOFLUSH );
return fd;
}
/**
*
*/
static void sio_speed( int fd, int speed )
{
struct termios oldtio,newtio;
/* int fd; */
LWIP_DEBUGF(SIO_DEBUG, ("sio_speed[%d]: baudcode:%d enter\n", fd, speed));
if ( fd < 0 )
{
LWIP_DEBUGF(SIO_DEBUG, ("sio_speed[%d]: fd ERROR\n", fd));
exit( -1 );
}
tcgetattr( fd,&oldtio ); /* get current port settings */
/* set new port settings
* see 'man termios' for further settings */
memset(&newtio, 0, sizeof(newtio));
newtio.c_cflag = speed | CS8 | CLOCAL | CREAD; /* | CRTSCTS; */
newtio.c_iflag = 0;
newtio.c_oflag = 0;
newtio.c_lflag = 0; /*ECHO; */
newtio.c_cc[VMIN] = 1; /* Read 1 byte at a time, no timer */
newtio.c_cc[VTIME] = 0;
tcsetattr( fd,TCSANOW,&newtio );
tcflush( fd, TCIOFLUSH );
LWIP_DEBUGF(SIO_DEBUG, ("sio_speed[%d]: leave\n", fd));
}
/* --public-functions----------------------------------------------------------------------------- */
void sio_send( u8_t c, sio_status_t * siostat )
{
/* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */
if ( write( siostat->fd, &c, 1 ) <= 0 )
{
LWIP_DEBUGF(SIO_DEBUG, ("sio_send[%d]: write refused\n", siostat->fd));
}
}
void sio_send_string( u8_t *str, sio_status_t * siostat )
{
/* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */
int len = strlen( (const char *)str );
if ( write( siostat->fd, str, len ) <= 0 )
{
LWIP_DEBUGF(SIO_DEBUG, ("sio_send_string[%d]: write refused\n", siostat->fd));
}
LWIP_DEBUGF(SIO_DEBUG, ("sio_send_string[%d]: sent: %s\n", siostat->fd, str));
}
void sio_flush( sio_status_t * siostat )
{
LWIP_UNUSED_ARG(siostat);
/* not implemented in unix as it is not needed */
/*sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */
}
#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF)
/*u8_t sio_recv( struct netif * netif )*/
u8_t sio_recv( sio_status_t * siostat )
{
/* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */
return fifoGet( &(siostat->myfifo) );
}
s16_t sio_poll(sio_status_t * siostat)
{
/* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio;*/
return fifoGetNonBlock( &(siostat->myfifo) );
}
void sio_expect_string( u8_t *str, sio_status_t * siostat )
{
/* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio;*/
u8_t c;
int finger=0;
LWIP_DEBUGF(SIO_DEBUG, ("sio_expect_string[%d]: %s\n", siostat->fd, str));
while ( 1 )
{
c=fifoGet( &(siostat->myfifo) );
LWIP_DEBUGF(SIO_DEBUG, ("_%c", c));
if ( c==str[finger] )
{
finger++;
} else if ( finger > 0 )
{
/*it might fit in the beginning? */
if ( str[0] == c )
{
finger = 1;
}
}
if ( 0 == str[finger] )
break; /* done, we have a match */
}
LWIP_DEBUGF(SIO_DEBUG, ("sio_expect_string[%d]: [match]\n", siostat->fd));
}
#endif /* ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */
#if (PPP_SUPPORT || LWIP_HAVE_SLIPIF)
u32_t sio_write(sio_status_t * siostat, u8_t *buf, u32_t size)
{
ssize_t wsz = write( siostat->fd, buf, size );
return wsz < 0 ? 0 : wsz;
}
u32_t sio_read(sio_status_t * siostat, u8_t *buf, u32_t size)
{
ssize_t rsz = read( siostat->fd, buf, size );
return rsz < 0 ? 0 : rsz;
}
void sio_read_abort(sio_status_t * siostat)
{
LWIP_UNUSED_ARG(siostat);
printf("sio_read_abort[%d]: not yet implemented for unix\n", siostat->fd);
}
#endif /* (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */
sio_fd_t sio_open(u8_t devnum)
{
char dev[20];
/* would be nice with dynamic memory alloc */
sio_status_t * siostate = &statusar[ devnum ];
/* siostruct_t * tmp; */
/* tmp = (siostruct_t*)(netif->state); */
/* tmp->sio = siostate; */
/* tmp = (siostruct_t*)(netif->state); */
/* ((sio_status_t*)(tmp->sio))->fd = 0; */
LWIP_DEBUGF(SIO_DEBUG, ("sio_open: for devnum %d\n", devnum));
#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF)
fifoInit( &siostate->myfifo );
#endif /* ! PPP_SUPPORT */
snprintf( dev, sizeof(dev), "/dev/ttyS%d", devnum );
if ( (devnum == 1) || (devnum == 0) )
{
if ( ( siostate->fd = sio_init( dev, devnum, siostate ) ) == 0 )
{
LWIP_DEBUGF(SIO_DEBUG, ("sio_open: ERROR opening serial device dev=%s\n", dev));
abort( );
return NULL;
}
LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: dev=%s open.\n", siostate->fd, dev));
}
#if PPP_SUPPORT
else if (devnum == 2) {
pid_t childpid;
char name[256];
childpid = forkpty(&siostate->fd, name, NULL, NULL);
if(childpid < 0) {
perror("forkpty");
exit (1);
}
if(childpid == 0) {
execl("/usr/sbin/pppd", "pppd",
"ms-dns", "198.168.100.7",
"local", "crtscts",
"debug",
#ifdef LWIP_PPP_CHAP_TEST
"auth",
"require-chap",
"remotename", "lwip",
#else
"noauth",
#endif
#if LWIP_IPV6
"+ipv6",
#endif
"192.168.1.1:192.168.1.2",
NULL);
perror("execl pppd");
exit (1);
} else {
LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: spawned pppd pid %d on %s\n",
siostate->fd, childpid, name));
}
}
#endif
#if LWIP_HAVE_SLIPIF
else if (devnum == 3) {
pid_t childpid;
/* create PTY pair */
siostate->fd = posix_openpt(O_RDWR | O_NOCTTY);
if (siostate->fd < 0) {
perror("open pty master");
exit (1);
}
if (grantpt(siostate->fd) != 0) {
perror("grant pty master");
exit (1);
}
if (unlockpt(siostate->fd) != 0) {
perror("unlock pty master");
exit (1);
}
LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: for %s\n",
siostate->fd, ptsname(siostate->fd)));
/* fork for slattach */
childpid = fork();
if(childpid < 0) {
perror("fork");
exit (1);
}
if(childpid == 0) {
/* esteblish SLIP interface on host side connected to PTY slave */
execl("/sbin/slattach", "slattach",
"-d", "-v", "-L", "-p", "slip",
ptsname(siostate->fd),
NULL);
perror("execl slattach");
exit (1);
} else {
int ret;
char buf[1024];
LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: spawned slattach pid %d on %s\n",
siostate->fd, childpid, ptsname(siostate->fd)));
/* wait a moment for slattach startup */
sleep(1);
/* configure SLIP interface on host side as P2P interface */
snprintf(buf, sizeof(buf),
"/sbin/ifconfig sl0 mtu %d %s pointopoint %s up",
SLIP_MAX_SIZE, "192.168.2.1", "192.168.2.2");
LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: system(\"%s\");\n", siostate->fd, buf));
ret = system(buf);
if (ret < 0) {
perror("ifconfig failed");
exit(1);
}
}
}
#endif /* LWIP_HAVE_SLIPIF */
else
{
LWIP_DEBUGF(SIO_DEBUG, ("sio_open: device %s (%d) is not supported\n", dev, devnum));
return NULL;
}
return siostate;
}
/**
*
*/
void sio_change_baud( sioBaudrates baud, sio_status_t * siostat )
{
/* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio;*/
LWIP_DEBUGF(SIO_DEBUG, ("sio_change_baud[%d]\n", siostat->fd));
switch ( baud )
{
case SIO_BAUD_9600:
sio_speed( siostat->fd, B9600 );
break;
case SIO_BAUD_19200:
sio_speed( siostat->fd, B19200 );
break;
case SIO_BAUD_38400:
sio_speed( siostat->fd, B38400 );
break;
case SIO_BAUD_57600:
sio_speed( siostat->fd, B57600 );
break;
case SIO_BAUD_115200:
sio_speed( siostat->fd, B115200 );
break;
default:
LWIP_DEBUGF(SIO_DEBUG, ("sio_change_baud[%d]: Unknown baudrate, code:%d\n",
siostat->fd, baud));
break;
}
}

424
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/*
* 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 <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include "lwip/opt.h"
#include "lwip/debug.h"
#include "lwip/def.h"
#include "lwip/ip.h"
#include "lwip/mem.h"
#include "lwip/stats.h"
#include "lwip/snmp.h"
#include "lwip/pbuf.h"
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#include "netif/etharp.h"
#include "lwip/ethip6.h"
#if defined(LWIP_DEBUG) && defined(LWIP_TCPDUMP)
#include "netif/tcpdump.h"
#endif /* LWIP_DEBUG && LWIP_TCPDUMP */
#include "netif/tapif.h"
#define IFCONFIG_BIN "/sbin/ifconfig "
#if defined(LWIP_UNIX_LINUX)
#include <sys/ioctl.h>
#include <linux/if.h>
#include <linux/if_tun.h>
/*
* Creating a tap interface requires special privileges. If the interfaces
* is created in advance with `tunctl -u <user>` it can be opened as a regular
* user. The network must already be configured. If DEVTAP_IF is defined it
* will be opened instead of creating a new tap device.
*
* You can also use PRECONFIGURED_TAPIF environment variable to do so.
*/
#ifndef DEVTAP_DEFAULT_IF
#define DEVTAP_DEFAULT_IF "tap0"
#endif
#ifndef DEVTAP
#define DEVTAP "/dev/net/tun"
#endif
#define NETMASK_ARGS "netmask %d.%d.%d.%d"
#define IFCONFIG_ARGS "tap0 inet %d.%d.%d.%d " NETMASK_ARGS
#elif defined(LWIP_UNIX_OPENBSD)
#define DEVTAP "/dev/tun0"
#define NETMASK_ARGS "netmask %d.%d.%d.%d"
#define IFCONFIG_ARGS "tun0 inet %d.%d.%d.%d " NETMASK_ARGS " link0"
#else /* others */
#define DEVTAP "/dev/tap0"
#define NETMASK_ARGS "netmask %d.%d.%d.%d"
#define IFCONFIG_ARGS "tap0 inet %d.%d.%d.%d " NETMASK_ARGS
#endif
/* Define those to better describe your network interface. */
#define IFNAME0 't'
#define IFNAME1 'p'
#ifndef TAPIF_DEBUG
#define TAPIF_DEBUG LWIP_DBG_OFF
#endif
struct tapif {
/* Add whatever per-interface state that is needed here. */
int fd;
};
/* Forward declarations. */
static void tapif_input(struct netif *netif);
#if !NO_SYS
static void tapif_thread(void *arg);
#endif /* !NO_SYS */
/*-----------------------------------------------------------------------------------*/
static void
low_level_init(struct netif *netif)
{
struct tapif *tapif;
#if LWIP_IPV4
int ret;
char buf[1024];
#endif /* LWIP_IPV4 */
char *preconfigured_tapif = getenv("PRECONFIGURED_TAPIF");
tapif = (struct tapif *)netif->state;
/* Obtain MAC address from network interface. */
/* (We just fake an address...) */
netif->hwaddr[0] = 0x02;
netif->hwaddr[1] = 0x12;
netif->hwaddr[2] = 0x34;
netif->hwaddr[3] = 0x56;
netif->hwaddr[4] = 0x78;
netif->hwaddr[5] = 0xab;
netif->hwaddr_len = 6;
/* device capabilities */
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP;
tapif->fd = open(DEVTAP, O_RDWR);
LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_init: fd %d\n", tapif->fd));
if (tapif->fd == -1) {
#ifdef LWIP_UNIX_LINUX
perror("tapif_init: try running \"modprobe tun\" or rebuilding your kernel with CONFIG_TUN; cannot open "DEVTAP);
#else /* LWIP_UNIX_LINUX */
perror("tapif_init: cannot open "DEVTAP);
#endif /* LWIP_UNIX_LINUX */
exit(1);
}
#ifdef LWIP_UNIX_LINUX
{
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
if (preconfigured_tapif) {
strncpy(ifr.ifr_name, preconfigured_tapif, sizeof(ifr.ifr_name));
} else {
strncpy(ifr.ifr_name, DEVTAP_DEFAULT_IF, sizeof(ifr.ifr_name));
}
ifr.ifr_name[sizeof(ifr.ifr_name)-1] = 0; /* ensure \0 termination */
ifr.ifr_flags = IFF_TAP|IFF_NO_PI;
if (ioctl(tapif->fd, TUNSETIFF, (void *) &ifr) < 0) {
perror("tapif_init: "DEVTAP" ioctl TUNSETIFF");
exit(1);
}
}
#endif /* LWIP_UNIX_LINUX */
netif_set_link_up(netif);
if (preconfigured_tapif == NULL) {
#if LWIP_IPV4
snprintf(buf, 1024, IFCONFIG_BIN IFCONFIG_ARGS,
ip4_addr1(netif_ip4_gw(netif)),
ip4_addr2(netif_ip4_gw(netif)),
ip4_addr3(netif_ip4_gw(netif)),
ip4_addr4(netif_ip4_gw(netif))
#ifdef NETMASK_ARGS
,
ip4_addr1(netif_ip4_netmask(netif)),
ip4_addr2(netif_ip4_netmask(netif)),
ip4_addr3(netif_ip4_netmask(netif)),
ip4_addr4(netif_ip4_netmask(netif))
#endif /* NETMASK_ARGS */
);
LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_init: system(\"%s\");\n", buf));
ret = system(buf);
if (ret < 0) {
perror("ifconfig failed");
exit(1);
}
if (ret != 0) {
printf("ifconfig returned %d\n", ret);
}
#else /* LWIP_IPV4 */
perror("todo: support IPv6 support for non-preconfigured tapif");
exit(1);
#endif /* LWIP_IPV4 */
}
#if !NO_SYS
sys_thread_new("tapif_thread", tapif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
#endif /* !NO_SYS */
}
/*-----------------------------------------------------------------------------------*/
/*
* low_level_output():
*
* Should do the actual transmission of the packet. The packet is
* contained in the pbuf that is passed to the function. This pbuf
* might be chained.
*
*/
/*-----------------------------------------------------------------------------------*/
static err_t
low_level_output(struct netif *netif, struct pbuf *p)
{
struct tapif *tapif = (struct tapif *)netif->state;
char buf[1514];
ssize_t written;
#if 0
if (((double)rand()/(double)RAND_MAX) < 0.2) {
printf("drop output\n");
return ERR_OK;
}
#endif
/* initiate transfer(); */
pbuf_copy_partial(p, buf, p->tot_len, 0);
/* signal that packet should be sent(); */
written = write(tapif->fd, buf, p->tot_len);
if (written < 0) {
MIB2_STATS_NETIF_INC(netif, ifoutdiscards);
perror("tapif: write");
}
else {
MIB2_STATS_NETIF_ADD(netif, ifoutoctets, (u32_t)written);
}
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
/*
* low_level_input():
*
* Should allocate a pbuf and transfer the bytes of the incoming
* packet from the interface into the pbuf.
*
*/
/*-----------------------------------------------------------------------------------*/
static struct pbuf *
low_level_input(struct netif *netif)
{
struct pbuf *p;
u16_t len;
ssize_t readlen;
char buf[1514];
struct tapif *tapif = (struct tapif *)netif->state;
/* Obtain the size of the packet and put it into the "len"
variable. */
readlen = read(tapif->fd, buf, sizeof(buf));
if (readlen < 0) {
perror("read returned -1");
exit(1);
}
len = (u16_t)readlen;
MIB2_STATS_NETIF_ADD(netif, ifinoctets, len);
#if 0
if (((double)rand()/(double)RAND_MAX) < 0.2) {
printf("drop\n");
return NULL;
}
#endif
/* We allocate a pbuf chain of pbufs from the pool. */
p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
if (p != NULL) {
pbuf_take(p, buf, len);
/* acknowledge that packet has been read(); */
} else {
/* drop packet(); */
MIB2_STATS_NETIF_INC(netif, ifindiscards);
LWIP_DEBUGF(NETIF_DEBUG, ("tapif_input: could not allocate pbuf\n"));
}
return p;
}
/*-----------------------------------------------------------------------------------*/
/*
* tapif_input():
*
* This function should be called when a packet is ready to be read
* from the interface. It uses the function low_level_input() that
* should handle the actual reception of bytes from the network
* interface.
*
*/
/*-----------------------------------------------------------------------------------*/
static void
tapif_input(struct netif *netif)
{
struct pbuf *p = low_level_input(netif);
if (p == NULL) {
#if LINK_STATS
LINK_STATS_INC(link.recv);
#endif /* LINK_STATS */
LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_input: low_level_input returned NULL\n"));
return;
}
if (netif->input(p, netif) != ERR_OK) {
LWIP_DEBUGF(NETIF_DEBUG, ("tapif_input: netif input error\n"));
pbuf_free(p);
}
}
/*-----------------------------------------------------------------------------------*/
/*
* tapif_init():
*
* Should be called at the beginning of the program to set up the
* network interface. It calls the function low_level_init() to do the
* actual setup of the hardware.
*
*/
/*-----------------------------------------------------------------------------------*/
err_t
tapif_init(struct netif *netif)
{
struct tapif *tapif = (struct tapif *)mem_malloc(sizeof(struct tapif));
if (tapif == NULL) {
LWIP_DEBUGF(NETIF_DEBUG, ("tapif_init: out of memory for tapif\n"));
return ERR_MEM;
}
netif->state = tapif;
MIB2_INIT_NETIF(netif, snmp_ifType_other, 100000000);
netif->name[0] = IFNAME0;
netif->name[1] = IFNAME1;
#if LWIP_IPV4
netif->output = etharp_output;
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
netif->output_ip6 = ethip6_output;
#endif /* LWIP_IPV6 */
netif->linkoutput = low_level_output;
netif->mtu = 1500;
low_level_init(netif);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
#if NO_SYS
int
tapif_select(struct netif *netif)
{
fd_set fdset;
int ret;
struct timeval tv;
struct tapif *tapif;
u32_t msecs = sys_timeouts_sleeptime();
tapif = (struct tapif *)netif->state;
tv.tv_sec = msecs / 1000;
tv.tv_usec = (msecs % 1000) * 1000;
FD_ZERO(&fdset);
FD_SET(tapif->fd, &fdset);
ret = select(tapif->fd + 1, &fdset, NULL, NULL, &tv);
if (ret > 0) {
tapif_input(netif);
}
return ret;
}
#else /* NO_SYS */
static void
tapif_thread(void *arg)
{
struct netif *netif;
struct tapif *tapif;
fd_set fdset;
int ret;
netif = (struct netif *)arg;
tapif = (struct tapif *)netif->state;
while(1) {
FD_ZERO(&fdset);
FD_SET(tapif->fd, &fdset);
/* Wait for a packet to arrive. */
ret = select(tapif->fd + 1, &fdset, NULL, NULL, NULL);
if(ret == 1) {
/* Handle incoming packet. */
tapif_input(netif);
} else if(ret == -1) {
perror("tapif_thread: select");
}
}
}
#endif /* NO_SYS */

216
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/*
* 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 <stdio.h>
#include "lwip/opt.h"
#if (LWIP_IPV4 || LWIP_IPV6) && LWIP_TCP /* @todo: fix IPv6 */
#include <string.h> /* memcpy */
#include "netif/tcpdump.h"
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/ip.h"
#include "lwip/ip4.h"
#include "lwip/ip6.h"
#include "lwip/ip_addr.h"
#include "lwip/priv/tcp_priv.h"
#include "lwip/udp.h"
#include "lwip/inet.h"
#include "lwip/inet_chksum.h"
#ifndef TCPDUMP_DEBUG
#define TCPDUMP_DEBUG LWIP_DBG_OFF
#endif
static FILE *file = NULL;
/*-----------------------------------------------------------------------------------*/
void
tcpdump_init(void)
{
#define TCPDUMP_FNAME "/tmp/tcpdump"
file = fopen(TCPDUMP_FNAME, "w");
if (file == NULL) {
perror("tcpdump_init: cannot open \""TCPDUMP_FNAME"\" for writing");
}
LWIP_DEBUGF(TCPDUMP_DEBUG, ("tcpdump: file %s\n", TCPDUMP_FNAME));
}
/*-----------------------------------------------------------------------------------*/
void
tcpdump(struct pbuf *p, struct netif* netif)
{
#if LWIP_IPV4
ip_addr_t src, dst;
struct ip_hdr *iphdr;
#if LWIP_UDP
struct udp_hdr *udphdr;
#endif
#if LWIP_TCP
struct tcp_hdr *tcphdr;
char flags[5];
int i;
int len;
int offset;
#endif
LWIP_UNUSED_ARG(netif); /* in case IPv6 is disabled */
if (file == NULL) {
return;
}
iphdr = (struct ip_hdr *)p->payload;
#if LWIP_IPV6
if(IPH_V(iphdr) == 6) {
struct ip6_hdr *ip6hdr = (struct ip6_hdr*)iphdr;
/* create aligned copies if IPv6 src/dest addr */
ip6_addr_copy_from_packed(*ip_2_ip6(&src), ip6hdr->src);
ip6_addr_assign_zone(ip_2_ip6(&src), IP6_UNKNOWN, netif);
IP_SET_TYPE_VAL(src, IPADDR_TYPE_V6);
ip6_addr_copy_from_packed(*ip_2_ip6(&dst), ip6hdr->dest);
ip6_addr_assign_zone(ip_2_ip6(&dst), IP6_UNKNOWN, netif);
IP_SET_TYPE_VAL(dst, IPADDR_TYPE_V6);
fprintf(file, "%s > %s: (IPv6, unsupported) ",
ip_ntoa(&src),
ip_ntoa(&dst));
return; /* not supported */
}
#endif
if(IPH_V(iphdr) == 4) {
ip_addr_copy_from_ip4(src, iphdr->src);
ip_addr_copy_from_ip4(dst, iphdr->dest);
}
switch (IPH_PROTO(iphdr)) {
#if LWIP_TCP
case IP_PROTO_TCP:
tcphdr = (struct tcp_hdr *)((char *)iphdr + IPH_HL(iphdr));
pbuf_header(p, -IP_HLEN);
if (ip_chksum_pseudo(p, IP_PROTO_TCP, p->tot_len, &src, &dst) != 0) {
LWIP_DEBUGF(TCPDUMP_DEBUG, ("tcpdump: IP checksum failed!\n"));
/*
fprintf(file, "chksum 0x%lx ", tcphdr->chksum);
tcphdr->chksum = 0;
fprintf(file, "should be 0x%lx ", inet_chksum_pseudo(p, (ip_addr_t *)&(iphdr->src),
(ip_addr_t *)&(iphdr->dest), IP_PROTO_TCP, p->tot_len));*/
fprintf(file, "!chksum ");
}
i = 0;
if (TCPH_FLAGS(tcphdr) & TCP_SYN) {
flags[i++] = 'S';
}
if (TCPH_FLAGS(tcphdr) & TCP_PSH) {
flags[i++] = 'P';
}
if (TCPH_FLAGS(tcphdr) & TCP_FIN) {
flags[i++] = 'F';
}
if (TCPH_FLAGS(tcphdr) & TCP_RST) {
flags[i++] = 'R';
}
if (i == 0) {
flags[i++] = '.';
}
flags[i++] = 0;
fprintf(file, "%s.%u > %s.%u: ",
ip_ntoa(&src),
lwip_ntohs(tcphdr->src),
ip_ntoa(&dst),
lwip_ntohs(tcphdr->dest));
offset = TCPH_HDRLEN(tcphdr);
len = lwip_ntohs(IPH_LEN(iphdr)) - offset * 4 - IP_HLEN;
if (len != 0 || flags[0] != '.') {
fprintf(file, "%s %u:%u(%u) ", flags, lwip_ntohl(tcphdr->seqno),
lwip_ntohl(tcphdr->seqno) + (u32_t)len, len);
}
if (TCPH_FLAGS(tcphdr) & TCP_ACK) {
fprintf(file, "ack %u ", lwip_ntohl(tcphdr->ackno));
}
fprintf(file, "wnd %u\n", lwip_ntohs(tcphdr->wnd));
fflush(file);
pbuf_header(p, IP_HLEN);
break;
#endif /* LWIP_TCP */
#if LWIP_UDP
case IP_PROTO_UDP:
udphdr = (struct udp_hdr *)((char *)iphdr + IPH_HL(iphdr));
pbuf_header(p, -IP_HLEN);
if (ip_chksum_pseudo(p, IP_PROTO_UDP, p->tot_len, &src, &dst) != 0) {
LWIP_DEBUGF(TCPDUMP_DEBUG, ("tcpdump: IP checksum failed!\n"));
/*
fprintf(file, "chksum 0x%lx ", tcphdr->chksum);
tcphdr->chksum = 0;
fprintf(file, "should be 0x%lx ", ip_chksum_pseudo(p, &src, &dst, IP_PROTO_TCP, p->tot_len));*/
fprintf(file, "!chksum ");
}
fprintf(file, "%s.%u > %s.%u: ",
ip_ntoa(&src),
lwip_ntohs(udphdr->src),
ip_ntoa(&dst),
lwip_ntohs(udphdr->dest));
fprintf(file, "U ");
len = (int)(lwip_ntohs(IPH_LEN(iphdr)) - sizeof(struct udp_hdr) - IP_HLEN);
fprintf(file, " %d\n", len);
fflush(file);
pbuf_header(p, IP_HLEN);
break;
#endif /* LWIP_UDP */
default:
LWIP_DEBUGF(TCPDUMP_DEBUG, ("unhandled IP protocol: %d\n", (int)IPH_PROTO(iphdr)));
break;
}
#else
LWIP_UNUSED_ARG(p);
LWIP_UNUSED_ARG(netif);
#endif
}
#endif /* LWIP_IPV4 && LWIP_TCP */
/*-----------------------------------------------------------------------------------*/

302
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/*
* 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 "netif/tunif.h"
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include "lwip/debug.h"
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/ip.h"
#include "lwip/mem.h"
#include "lwip/netif.h"
#include "lwip/pbuf.h"
#include "lwip/sys.h"
#if LWIP_IPV4 /* @todo: IPv6 */
#if !NO_SYS
#define IFNAME0 't'
#define IFNAME1 'n'
#ifndef TUNIF_DEBUG
#define TUNIF_DEBUG LWIP_DBG_OFF
#endif
#define IFCONFIG_CALL "/sbin/ifconfig tun0 inet %d.%d.%d.%d %d.%d.%d.%d"
struct tunif {
/* Add whatever per-interface state that is needed here. */
int fd;
};
/* Forward declarations. */
static void tunif_input(struct netif *netif);
static err_t tunif_output(struct netif *netif, struct pbuf *p,
const ip4_addr_t *ipaddr);
static void tunif_thread(void *data);
/*-----------------------------------------------------------------------------------*/
static void
low_level_init(struct netif *netif)
{
struct tunif *tunif;
char buf[sizeof(IFCONFIG_CALL) + 50];
tunif = (struct tunif *)netif->state;
/* Obtain MAC address from network interface. */
/* Do whatever else is needed to initialize interface. */
tunif->fd = open("/dev/tun0", O_RDWR);
LWIP_DEBUGF(TUNIF_DEBUG, ("tunif_init: fd %d\n", tunif->fd));
if (tunif->fd == -1) {
perror("tunif_init");
exit(1);
}
sprintf(buf, IFCONFIG_CALL,
ip4_addr1(netif_ip4_gw(netif)),
ip4_addr2(netif_ip4_gw(netif)),
ip4_addr3(netif_ip4_gw(netif)),
ip4_addr4(netif_ip4_gw(netif)),
ip4_addr1(netif_ip4_addr(netif)),
ip4_addr2(netif_ip4_addr(netif)),
ip4_addr3(netif_ip4_addr(netif)),
ip4_addr4(netif_ip4_addr(netif)));
LWIP_DEBUGF(TUNIF_DEBUG, ("tunif_init: system(\"%s\");\n", buf));
if (system(buf) == 0) {
sys_thread_new("tunif_thread", tunif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
}
}
/*-----------------------------------------------------------------------------------*/
/*
* low_level_output():
*
* Should do the actual transmission of the packet. The packet is
* contained in the pbuf that is passed to the function. This pbuf
* might be chained.
*
*/
/*-----------------------------------------------------------------------------------*/
static err_t
low_level_output(struct tunif *tunif, struct pbuf *p)
{
char buf[1500];
int rnd_val;
/* initiate transfer(); */
rnd_val = rand();
if (((double)rnd_val/(double)RAND_MAX) < 0.4) {
printf("drop\n");
return ERR_OK;
}
pbuf_copy_partial(p, buf, p->tot_len, 0);
/* signal that packet should be sent(); */
if (write(tunif->fd, buf, p->tot_len) == -1) {
perror("tunif: write");
}
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
/*
* low_level_input():
*
* Should allocate a pbuf and transfer the bytes of the incoming
* packet from the interface into the pbuf.
*
*/
/*-----------------------------------------------------------------------------------*/
static struct pbuf *
low_level_input(struct tunif *tunif)
{
struct pbuf *p;
ssize_t len;
char buf[1500];
/* Obtain the size of the packet and put it into the "len"
variable. */
len = read(tunif->fd, buf, sizeof(buf));
if((len <= 0) || (len > 0xffff)) {
return NULL;
}
/* if (((double)rand()/(double)RAND_MAX) < 0.1) {
printf("drop\n");
return NULL;
}*/
/* We allocate a pbuf chain of pbufs from the pool. */
p = pbuf_alloc(PBUF_LINK, (u16_t)len, PBUF_POOL);
if (p != NULL) {
pbuf_take(p, buf, (u16_t)len);
/* acknowledge that packet has been read(); */
} else {
/* drop packet(); */
}
return p;
}
/*-----------------------------------------------------------------------------------*/
static void
tunif_thread(void *arg)
{
struct netif *netif;
struct tunif *tunif;
fd_set fdset;
int ret;
netif = (struct netif *)arg;
tunif = (struct tunif *)netif->state;
while (1) {
FD_ZERO(&fdset);
FD_SET(tunif->fd, &fdset);
/* Wait for a packet to arrive. */
ret = select(tunif->fd + 1, &fdset, NULL, NULL, NULL);
if (ret == 1) {
/* Handle incoming packet. */
tunif_input(netif);
} else if (ret == -1) {
perror("tunif_thread: select");
}
}
}
/*-----------------------------------------------------------------------------------*/
/*
* tunif_output():
*
* This function is called by the TCP/IP stack when an IP packet
* should be sent. It calls the function called low_level_output() to
* do the actuall transmission of the packet.
*
*/
/*-----------------------------------------------------------------------------------*/
static err_t
tunif_output(struct netif *netif, struct pbuf *p,
const ip4_addr_t *ipaddr)
{
struct tunif *tunif;
LWIP_UNUSED_ARG(ipaddr);
tunif = (struct tunif *)netif->state;
return low_level_output(tunif, p);
}
/*-----------------------------------------------------------------------------------*/
/*
* tunif_input():
*
* This function should be called when a packet is ready to be read
* from the interface. It uses the function low_level_input() that
* should handle the actual reception of bytes from the network
* interface.
*
*/
/*-----------------------------------------------------------------------------------*/
static void
tunif_input(struct netif *netif)
{
struct tunif *tunif;
struct pbuf *p;
tunif = (struct tunif *)netif->state;
p = low_level_input(tunif);
if (p == NULL) {
LWIP_DEBUGF(TUNIF_DEBUG, ("tunif_input: low_level_input returned NULL\n"));
return;
}
#if 0
/* CS: ip_lookup() was removed */
if (ip_lookup(p->payload, netif)) {
#endif
netif->input(p, netif);
#if 0
}
#endif
}
/*-----------------------------------------------------------------------------------*/
/*
* tunif_init():
*
* Should be called at the beginning of the program to set up the
* network interface. It calls the function low_level_init() to do the
* actual setup of the hardware.
*
*/
/*-----------------------------------------------------------------------------------*/
err_t
tunif_init(struct netif *netif)
{
struct tunif *tunif;
tunif = (struct tunif *)mem_malloc(sizeof(struct tunif));
if (!tunif) {
return ERR_MEM;
}
netif->state = tunif;
netif->name[0] = IFNAME0;
netif->name[1] = IFNAME1;
netif->output = tunif_output;
low_level_init(netif);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
#endif /* !NO_SYS */
#endif /* LWIP_IPV4 */

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/*
* 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/debug.h"
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/stat.h>
/*#include <netinet/in.h> */
/*#include <arpa/inet.h> */
#include "lwip/stats.h"
#include "lwip/def.h"
#include "lwip/mem.h"
#include "lwip/pbuf.h"
#include "netif/list.h"
#include "netif/unixif.h"
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#if LWIP_IPV4 /* @todo: IPv6 */
#if !NO_SYS
#include "netif/tcpdump.h"
#define UNIXIF_BPS 512000
#define UNIXIF_QUEUELEN 6
/*#define UNIXIF_DROP_FIRST */
#ifndef UNIXIF_DEBUG
#define UNIXIF_DEBUG LWIP_DBG_OFF
#endif
struct unixif_buf {
struct pbuf *p;
unsigned short len, tot_len;
void *payload;
};
struct unixif {
int fd;
sys_sem_t sem;
struct list *q;
};
static void unixif_thread(void *arg);
static void unixif_thread2(void *arg);
/*-----------------------------------------------------------------------------------*/
static int
unix_socket_client(const char *name)
{
int fd;
#if !defined(LWIP_UNIX_LINUX) && !defined(LWIP_UNIX_CYGWIN) && !defined(__CYGWIN__)
int len;
#endif
struct sockaddr_un unix_addr;
/* create a Unix domain stream socket */
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
perror("unixif: unix_socket_client: socket");
return(-1);
}
/* fill socket address structure w/our address */
memset(&unix_addr, 0, sizeof(unix_addr));
unix_addr.sun_family = AF_UNIX;
snprintf(unix_addr.sun_path, sizeof(unix_addr.sun_path), "%s%05d", "/var/tmp/", getpid());
#if !defined(LWIP_UNIX_LINUX) && !defined(LWIP_UNIX_CYGWIN) && !defined(__CYGWIN__)
len = sizeof(unix_addr.sun_len) + sizeof(unix_addr.sun_family) +
strlen(unix_addr.sun_path) + 1;
unix_addr.sun_len = len;
#endif /* LWIP_UNIX_LINUX */
unlink(unix_addr.sun_path); /* in case it already exists */
if (bind(fd, (struct sockaddr *) &unix_addr,
sizeof(struct sockaddr_un)) < 0) {
perror("unixif: unix_socket_client: socket");
return(-1);
}
if (chmod(unix_addr.sun_path, S_IRWXU | S_IRWXO) < 0) {
perror("unixif: unix_socket_client: socket");
return(-1);
}
/* fill socket address structure w/server's addr */
memset(&unix_addr, 0, sizeof(unix_addr));
unix_addr.sun_family = AF_UNIX;
strncpy(unix_addr.sun_path, name, sizeof(unix_addr.sun_path));
unix_addr.sun_path[sizeof(unix_addr.sun_path)-1] = 0; /* ensure \0 termination */
#if !defined(LWIP_UNIX_LINUX) && !defined(LWIP_UNIX_CYGWIN) && !defined(__CYGWIN__)
len = sizeof(unix_addr.sun_len) + sizeof(unix_addr.sun_family) +
strlen(unix_addr.sun_path) + 1;
unix_addr.sun_len = len;
#endif /* LWIP_UNIX_LINUX */
if (connect(fd, (struct sockaddr *) &unix_addr,
sizeof(struct sockaddr_un)) < 0) {
perror("unixif: unix_socket_client: socket");
return(-1);
}
return(fd);
}
/*-----------------------------------------------------------------------------------*/
static int
unix_socket_server(const char *name)
{
int fd;
#if !defined(LWIP_UNIX_LINUX) && !defined(LWIP_UNIX_CYGWIN) && !defined(__CYGWIN__)
int len;
#endif
struct sockaddr_un unix_addr;
/* create a Unix domain stream socket */
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
perror("unixif: unix_socket_server: socket");
return(-1);
}
unlink(name); /* in case it already exists */
/* fill in socket address structure */
memset(&unix_addr, 0, sizeof(unix_addr));
unix_addr.sun_family = AF_UNIX;
strncpy(unix_addr.sun_path, name, sizeof(unix_addr.sun_path));
unix_addr.sun_path[sizeof(unix_addr.sun_path)-1] = 0; /* ensure \0 termination */
#if !defined(LWIP_UNIX_LINUX) && !defined(LWIP_UNIX_CYGWIN) && !defined(__CYGWIN__)
len = sizeof(unix_addr.sun_len) + sizeof(unix_addr.sun_family) +
strlen(unix_addr.sun_path) + 1;
unix_addr.sun_len = len;
#endif /* LWIP_UNIX_LINUX */
/* bind the name to the descriptor */
if (bind(fd, (struct sockaddr *) &unix_addr,
sizeof(struct sockaddr_un)) < 0) {
perror("unixif: unix_socket_server: bind");
return(-1);
}
if (chmod(unix_addr.sun_path, S_IRWXU | S_IRWXO) < 0) {
perror("unixif: unix_socket_server: chmod");
return(-1);
}
if (listen(fd, 5) < 0) { /* tell kernel we're a server */
perror("unixif: unix_socket_server: listen");
return(-1);
}
return(fd);
}
/*-----------------------------------------------------------------------------------*/
static void
unixif_input_handler(void *data)
{
struct netif *netif;
struct unixif *unixif;
char buf[1532];
int plen;
ssize_t len;
u16_t len16;
struct pbuf *p;
netif = (struct netif *)data;
unixif = (struct unixif *)netif->state;
len = read(unixif->fd, &plen, sizeof(int));
if (len < 0) {
perror("unixif_irq_handler: read");
abort();
}
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_irq_handler: len == %d plen == %d bytes\n", (int)len, plen));
if (len == sizeof(int)) {
if (plen < 20 || plen > 1500) {
LWIP_DEBUGF(UNIXIF_DEBUG, ("plen %d!\n", plen));
return;
}
len = read(unixif->fd, buf, (size_t)plen);
if (len < 0) {
perror("unixif_irq_handler: read");
abort();
}
if (len != plen) {
perror("unixif_irq_handler: read len != plen");
abort();
}
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_irq_handler: read %d bytes\n", (int)len));
len16 = (u16_t)len;
p = pbuf_alloc(PBUF_LINK, len16, PBUF_POOL);
if (p != NULL) {
pbuf_take(p, buf, len16);
LINK_STATS_INC(link.recv);
#if LWIP_IPV4 && LWIP_TCP
tcpdump(p, netif);
#endif
netif->input(p, netif);
} else {
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_irq_handler: could not allocate pbuf\n"));
}
}
}
/*-----------------------------------------------------------------------------------*/
static void
unixif_thread(void *arg)
{
struct netif *netif;
struct unixif *unixif;
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_thread: started.\n"));
netif = (struct netif *)arg;
unixif = (struct unixif *)netif->state;
while (1) {
sys_sem_wait(&unixif->sem);
unixif_input_handler(netif);
}
}
/*-----------------------------------------------------------------------------------*/
static void
unixif_thread2(void *arg)
{
struct netif *netif;
struct unixif *unixif;
fd_set fdset;
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_thread2: started.\n"));
netif = (struct netif *)arg;
unixif = (struct unixif *)netif->state;
while (1) {
FD_ZERO(&fdset);
FD_SET(unixif->fd, &fdset);
if (select(unixif->fd + 1, &fdset, NULL, NULL, NULL) > 0) {
sys_sem_signal(&unixif->sem);
}
}
}
/*-----------------------------------------------------------------------------------*/
static void unixif_output_timeout(void *arg);
static err_t
unixif_output(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr)
{
struct unixif *unixif;
struct unixif_buf *buf;
LWIP_UNUSED_ARG(ipaddr);
unixif = (struct unixif *)netif->state;
buf = (struct unixif_buf *)malloc(sizeof(struct unixif_buf));
buf->p = p;
buf->len = p->len;
buf->tot_len = p->tot_len;
buf->payload = p->payload;
if (list_elems(unixif->q) == 0) {
pbuf_ref(p);
list_push(unixif->q, buf);
sys_timeout((u32_t)p->tot_len * 8000 / UNIXIF_BPS, unixif_output_timeout,
netif);
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_output: first on list\n"));
} else {
pbuf_ref(p);
if (list_push(unixif->q, buf) == 0) {
#ifdef UNIXIF_DROP_FIRST
struct unixif_buf *buf2;
buf2 = list_pop(unixif->q);
pbuf_free(buf2->p);
free(buf2);
list_push(unixif->q, buf);
#else
free(buf);
pbuf_free(p);
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_output: drop\n"));
#endif /* UNIXIF_DROP_FIRST */
LINK_STATS_INC(link.drop);
} else {
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_output: on list\n"));
}
}
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
static void
unixif_output_timeout(void *arg)
{
struct pbuf *p, *q;
int i, j, len;
unsigned short plen, ptot_len;
struct unixif_buf *buf;
void *payload;
struct netif *netif;
struct unixif *unixif;
char *data;
netif = (struct netif *)arg;
unixif = (struct unixif *)netif->state;
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_output_timeout\n"));
/* buf = unixif->q[0];
unixif->q[0] = unixif->q[1];
unixif->q[1] = NULL;*/
buf = (struct unixif_buf *)list_pop(unixif->q);
p = buf->p;
plen = p->len;
ptot_len = p->tot_len;
payload = p->payload;
p->len = buf->len;
p->tot_len = buf->tot_len;
p->payload = buf->payload;
if (p->tot_len == 0) {
LWIP_DEBUGF(UNIXIF_DEBUG, ("p->len!\n"));
abort();
}
data = (char *)malloc(p->tot_len);
i = 0;
for(q = p; q != NULL; q = q->next) {
for(j = 0; j < q->len; j++) {
data[i] = ((char *)q->payload)[j];
i++;
}
}
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_output: sending %d (%d) bytes\n",
p->len, p->tot_len));
len = p->tot_len;
if (write(unixif->fd, &len, sizeof(int)) == -1) {
perror("unixif_output: write");
abort();
}
if (write(unixif->fd, data, p->tot_len) == -1) {
perror("unixif_output: write");
abort();
}
#if LWIP_IPV4 && LWIP_TCP
tcpdump(p, netif);
#endif
LINK_STATS_INC(link.xmit);
free(data);
free(buf);
p->len = plen;
p->tot_len = ptot_len;
p->payload = payload;
pbuf_free(p);
/* if (unixif->q[0] != NULL) {
sys_timeout(unixif->q[0]->tot_len * 8000 / UNIXIF_BPS,
unixif_output_timeout, netif);
}*/
if (list_elems(unixif->q) > 0) {
sys_timeout(((struct unixif_buf *)list_first(unixif->q))->tot_len *
8000U / UNIXIF_BPS,
unixif_output_timeout, netif);
}
}
/*-----------------------------------------------------------------------------------*/
err_t
unixif_init_server(struct netif *netif)
{
int fd, fd2;
struct sockaddr_un addr;
socklen_t len;
struct unixif *unixif;
fd = unix_socket_server("/tmp/unixif");
if (fd == -1) {
perror("unixif_server");
abort();
}
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_server: fd %d\n", fd));
unixif = (struct unixif *)malloc(sizeof(struct unixif));
if (!unixif) {
return ERR_MEM;
}
netif->state = unixif;
netif->name[0] = 'u';
netif->name[1] = 'n';
netif->output = unixif_output;
unixif->q = list_new(UNIXIF_QUEUELEN);
printf("Now run ./simnode.\n");
len = sizeof(addr);
fd2 = accept(fd, (struct sockaddr *)&addr, &len);
if (fd2 == -1) {
perror("unixif_accept");
abort();
}
LWIP_DEBUGF(UNIXIF_DEBUG, ("unixif_accept: %d\n", fd2));
unixif->fd = fd2;
if(sys_sem_new(&unixif->sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
sys_thread_new("unixif_thread", unixif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
sys_thread_new("unixif_thread2", unixif_thread2, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
err_t
unixif_init_client(struct netif *netif)
{
struct unixif *unixif;
unixif = (struct unixif *)malloc(sizeof(struct unixif));
if (!unixif) {
return ERR_MEM;
}
netif->state = unixif;
netif->name[0] = 'u';
netif->name[1] = 'n';
netif->output = unixif_output;
unixif->fd = unix_socket_client("/tmp/unixif");
if (unixif->fd == -1) {
perror("unixif_init");
abort();
}
unixif->q = list_new(UNIXIF_QUEUELEN);
if(sys_sem_new(&unixif->sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
sys_thread_new("unixif_thread", unixif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
sys_thread_new("unixif_thread2", unixif_thread2, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
#endif /* !NO_SYS */
#endif /* LWIP_IPV4 */

65
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/*
* 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 "arch/perf.h"
#include <stdio.h>
static FILE *f;
void
perf_print(unsigned long c1l, unsigned long c1h,
unsigned long c2l, unsigned long c2h,
char *key)
{
unsigned long sub_ms, sub_ls;
sub_ms = c2h - c1h;
sub_ls = c2l - c1l;
if (c2l < c1l) sub_ms--;
fprintf(f, "%s: %.8lu%.8lu\n", key, sub_ms, sub_ls);
fflush(NULL);
}
void
perf_print_times(struct tms *start, struct tms *end, char *key)
{
fprintf(f, "%s: %lu\n", key, end->tms_stime - start->tms_stime);
fflush(NULL);
}
void
perf_init(char *fname)
{
f = fopen(fname, "w");
}

649
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/*
* 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>
*
*/
/*
* Wed Apr 17 16:05:29 EDT 2002 (James Roth)
*
* - Fixed an unlikely sys_thread_new() race condition.
*
* - Made current_thread() work with threads which where
* not created with sys_thread_new(). This includes
* the main thread and threads made with pthread_create().
*
* - Catch overflows where more than SYS_MBOX_SIZE messages
* are waiting to be read. The sys_mbox_post() routine
* will block until there is more room instead of just
* leaking messages.
*/
#include "lwip/debug.h"
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <errno.h>
#include "lwip/def.h"
#ifdef LWIP_UNIX_MACH
#include <mach/mach.h>
#include <mach/mach_time.h>
#endif
#include "lwip/sys.h"
#include "lwip/opt.h"
#include "lwip/stats.h"
static void
get_monotonic_time(struct timespec *ts)
{
#ifdef LWIP_UNIX_MACH
/* darwin impl (no CLOCK_MONOTONIC) */
uint64_t t = mach_absolute_time();
mach_timebase_info_data_t timebase_info = {0, 0};
mach_timebase_info(&timebase_info);
uint64_t nano = (t * timebase_info.numer) / (timebase_info.denom);
uint64_t sec = nano/1000000000L;
nano -= sec * 1000000000L;
ts->tv_sec = sec;
ts->tv_nsec = nano;
#else
clock_gettime(CLOCK_MONOTONIC, ts);
#endif
}
#if !NO_SYS
static struct sys_thread *threads = NULL;
static pthread_mutex_t threads_mutex = PTHREAD_MUTEX_INITIALIZER;
struct sys_mbox_msg {
struct sys_mbox_msg *next;
void *msg;
};
#define SYS_MBOX_SIZE 128
struct sys_mbox {
int first, last;
void *msgs[SYS_MBOX_SIZE];
struct sys_sem *not_empty;
struct sys_sem *not_full;
struct sys_sem *mutex;
int wait_send;
};
struct sys_sem {
unsigned int c;
pthread_condattr_t condattr;
pthread_cond_t cond;
pthread_mutex_t mutex;
};
struct sys_mutex {
pthread_mutex_t mutex;
};
struct sys_thread {
struct sys_thread *next;
pthread_t pthread;
};
#if SYS_LIGHTWEIGHT_PROT
static pthread_mutex_t lwprot_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_t lwprot_thread = (pthread_t)0xDEAD;
static int lwprot_count = 0;
#endif /* SYS_LIGHTWEIGHT_PROT */
static struct sys_sem *sys_sem_new_internal(u8_t count);
static void sys_sem_free_internal(struct sys_sem *sem);
static u32_t cond_wait(pthread_cond_t * cond, pthread_mutex_t * mutex,
u32_t timeout);
/*-----------------------------------------------------------------------------------*/
/* Threads */
static struct sys_thread *
introduce_thread(pthread_t id)
{
struct sys_thread *thread;
thread = (struct sys_thread *)malloc(sizeof(struct sys_thread));
if (thread != NULL) {
pthread_mutex_lock(&threads_mutex);
thread->next = threads;
thread->pthread = id;
threads = thread;
pthread_mutex_unlock(&threads_mutex);
}
return thread;
}
sys_thread_t
sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksize, int prio)
{
int code;
pthread_t tmp;
struct sys_thread *st = NULL;
LWIP_UNUSED_ARG(name);
LWIP_UNUSED_ARG(stacksize);
LWIP_UNUSED_ARG(prio);
code = pthread_create(&tmp,
NULL,
(void *(*)(void *))
function,
arg);
if (0 == code) {
st = introduce_thread(tmp);
}
if (NULL == st) {
LWIP_DEBUGF(SYS_DEBUG, ("sys_thread_new: pthread_create %d, st = 0x%lx",
code, (unsigned long)st));
abort();
}
return st;
}
/*-----------------------------------------------------------------------------------*/
/* Mailbox */
err_t
sys_mbox_new(struct sys_mbox **mb, int size)
{
struct sys_mbox *mbox;
LWIP_UNUSED_ARG(size);
mbox = (struct sys_mbox *)malloc(sizeof(struct sys_mbox));
if (mbox == NULL) {
return ERR_MEM;
}
mbox->first = mbox->last = 0;
mbox->not_empty = sys_sem_new_internal(0);
mbox->not_full = sys_sem_new_internal(0);
mbox->mutex = sys_sem_new_internal(1);
mbox->wait_send = 0;
SYS_STATS_INC_USED(mbox);
*mb = mbox;
return ERR_OK;
}
void
sys_mbox_free(struct sys_mbox **mb)
{
if ((mb != NULL) && (*mb != SYS_MBOX_NULL)) {
struct sys_mbox *mbox = *mb;
SYS_STATS_DEC(mbox.used);
sys_arch_sem_wait(&mbox->mutex, 0);
sys_sem_free_internal(mbox->not_empty);
sys_sem_free_internal(mbox->not_full);
sys_sem_free_internal(mbox->mutex);
mbox->not_empty = mbox->not_full = mbox->mutex = NULL;
/* LWIP_DEBUGF("sys_mbox_free: mbox 0x%lx\n", mbox); */
free(mbox);
}
}
err_t
sys_mbox_trypost(struct sys_mbox **mb, void *msg)
{
u8_t first;
struct sys_mbox *mbox;
LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL));
mbox = *mb;
sys_arch_sem_wait(&mbox->mutex, 0);
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_trypost: mbox %p msg %p\n",
(void *)mbox, (void *)msg));
if ((mbox->last + 1) >= (mbox->first + SYS_MBOX_SIZE)) {
sys_sem_signal(&mbox->mutex);
return ERR_MEM;
}
mbox->msgs[mbox->last % SYS_MBOX_SIZE] = msg;
if (mbox->last == mbox->first) {
first = 1;
} else {
first = 0;
}
mbox->last++;
if (first) {
sys_sem_signal(&mbox->not_empty);
}
sys_sem_signal(&mbox->mutex);
return ERR_OK;
}
void
sys_mbox_post(struct sys_mbox **mb, void *msg)
{
u8_t first;
struct sys_mbox *mbox;
LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL));
mbox = *mb;
sys_arch_sem_wait(&mbox->mutex, 0);
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_post: mbox %p msg %p\n", (void *)mbox, (void *)msg));
while ((mbox->last + 1) >= (mbox->first + SYS_MBOX_SIZE)) {
mbox->wait_send++;
sys_sem_signal(&mbox->mutex);
sys_arch_sem_wait(&mbox->not_full, 0);
sys_arch_sem_wait(&mbox->mutex, 0);
mbox->wait_send--;
}
mbox->msgs[mbox->last % SYS_MBOX_SIZE] = msg;
if (mbox->last == mbox->first) {
first = 1;
} else {
first = 0;
}
mbox->last++;
if (first) {
sys_sem_signal(&mbox->not_empty);
}
sys_sem_signal(&mbox->mutex);
}
u32_t
sys_arch_mbox_tryfetch(struct sys_mbox **mb, void **msg)
{
struct sys_mbox *mbox;
LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL));
mbox = *mb;
sys_arch_sem_wait(&mbox->mutex, 0);
if (mbox->first == mbox->last) {
sys_sem_signal(&mbox->mutex);
return SYS_MBOX_EMPTY;
}
if (msg != NULL) {
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_tryfetch: mbox %p msg %p\n", (void *)mbox, *msg));
*msg = mbox->msgs[mbox->first % SYS_MBOX_SIZE];
}
else{
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_tryfetch: mbox %p, null msg\n", (void *)mbox));
}
mbox->first++;
if (mbox->wait_send) {
sys_sem_signal(&mbox->not_full);
}
sys_sem_signal(&mbox->mutex);
return 0;
}
u32_t
sys_arch_mbox_fetch(struct sys_mbox **mb, void **msg, u32_t timeout)
{
u32_t time_needed = 0;
struct sys_mbox *mbox;
LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL));
mbox = *mb;
/* The mutex lock is quick so we don't bother with the timeout
stuff here. */
sys_arch_sem_wait(&mbox->mutex, 0);
while (mbox->first == mbox->last) {
sys_sem_signal(&mbox->mutex);
/* We block while waiting for a mail to arrive in the mailbox. We
must be prepared to timeout. */
if (timeout != 0) {
time_needed = sys_arch_sem_wait(&mbox->not_empty, timeout);
if (time_needed == SYS_ARCH_TIMEOUT) {
return SYS_ARCH_TIMEOUT;
}
} else {
sys_arch_sem_wait(&mbox->not_empty, 0);
}
sys_arch_sem_wait(&mbox->mutex, 0);
}
if (msg != NULL) {
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p msg %p\n", (void *)mbox, *msg));
*msg = mbox->msgs[mbox->first % SYS_MBOX_SIZE];
}
else{
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p, null msg\n", (void *)mbox));
}
mbox->first++;
if (mbox->wait_send) {
sys_sem_signal(&mbox->not_full);
}
sys_sem_signal(&mbox->mutex);
return time_needed;
}
/*-----------------------------------------------------------------------------------*/
/* Semaphore */
static struct sys_sem *
sys_sem_new_internal(u8_t count)
{
struct sys_sem *sem;
sem = (struct sys_sem *)malloc(sizeof(struct sys_sem));
if (sem != NULL) {
sem->c = count;
pthread_condattr_init(&(sem->condattr));
#if !(defined(LWIP_UNIX_MACH) || (defined(LWIP_UNIX_ANDROID) && __ANDROID_API__ < 21))
pthread_condattr_setclock(&(sem->condattr), CLOCK_MONOTONIC);
#endif
pthread_cond_init(&(sem->cond), &(sem->condattr));
pthread_mutex_init(&(sem->mutex), NULL);
}
return sem;
}
err_t
sys_sem_new(struct sys_sem **sem, u8_t count)
{
SYS_STATS_INC_USED(sem);
*sem = sys_sem_new_internal(count);
if (*sem == NULL) {
return ERR_MEM;
}
return ERR_OK;
}
static u32_t
cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex, u32_t timeout)
{
struct timespec rtime1, rtime2, ts;
int ret;
if (timeout == 0) {
pthread_cond_wait(cond, mutex);
return 0;
}
/* Get a timestamp and add the timeout value. */
get_monotonic_time(&rtime1);
#if defined(LWIP_UNIX_MACH) || (defined(LWIP_UNIX_ANDROID) && __ANDROID_API__ < 21)
ts.tv_sec = timeout / 1000L;
ts.tv_nsec = (timeout % 1000L) * 1000000L;
ret = pthread_cond_timedwait_relative_np(cond, mutex, &ts);
#else
ts.tv_sec = rtime1.tv_sec + timeout / 1000L;
ts.tv_nsec = rtime1.tv_nsec + (timeout % 1000L) * 1000000L;
if (ts.tv_nsec >= 1000000000L) {
ts.tv_sec++;
ts.tv_nsec -= 1000000000L;
}
ret = pthread_cond_timedwait(cond, mutex, &ts);
#endif
if (ret == ETIMEDOUT) {
return SYS_ARCH_TIMEOUT;
}
/* Calculate for how long we waited for the cond. */
get_monotonic_time(&rtime2);
ts.tv_sec = rtime2.tv_sec - rtime1.tv_sec;
ts.tv_nsec = rtime2.tv_nsec - rtime1.tv_nsec;
if (ts.tv_nsec < 0) {
ts.tv_sec--;
ts.tv_nsec += 1000000000L;
}
return (u32_t)(ts.tv_sec * 1000L + ts.tv_nsec / 1000000L);
}
u32_t
sys_arch_sem_wait(struct sys_sem **s, u32_t timeout)
{
u32_t time_needed = 0;
struct sys_sem *sem;
LWIP_ASSERT("invalid sem", (s != NULL) && (*s != NULL));
sem = *s;
pthread_mutex_lock(&(sem->mutex));
while (sem->c <= 0) {
if (timeout > 0) {
time_needed = cond_wait(&(sem->cond), &(sem->mutex), timeout);
if (time_needed == SYS_ARCH_TIMEOUT) {
pthread_mutex_unlock(&(sem->mutex));
return SYS_ARCH_TIMEOUT;
}
/* pthread_mutex_unlock(&(sem->mutex));
return time_needed; */
} else {
cond_wait(&(sem->cond), &(sem->mutex), 0);
}
}
sem->c--;
pthread_mutex_unlock(&(sem->mutex));
return (u32_t)time_needed;
}
void
sys_sem_signal(struct sys_sem **s)
{
struct sys_sem *sem;
LWIP_ASSERT("invalid sem", (s != NULL) && (*s != NULL));
sem = *s;
pthread_mutex_lock(&(sem->mutex));
sem->c++;
if (sem->c > 1) {
sem->c = 1;
}
pthread_cond_broadcast(&(sem->cond));
pthread_mutex_unlock(&(sem->mutex));
}
static void
sys_sem_free_internal(struct sys_sem *sem)
{
pthread_cond_destroy(&(sem->cond));
pthread_condattr_destroy(&(sem->condattr));
pthread_mutex_destroy(&(sem->mutex));
free(sem);
}
void
sys_sem_free(struct sys_sem **sem)
{
if ((sem != NULL) && (*sem != SYS_SEM_NULL)) {
SYS_STATS_DEC(sem.used);
sys_sem_free_internal(*sem);
}
}
/*-----------------------------------------------------------------------------------*/
/* Mutex */
/** Create a new mutex
* @param mutex pointer to the mutex to create
* @return a new mutex */
err_t
sys_mutex_new(struct sys_mutex **mutex)
{
struct sys_mutex *mtx;
mtx = (struct sys_mutex *)malloc(sizeof(struct sys_mutex));
if (mtx != NULL) {
pthread_mutex_init(&(mtx->mutex), NULL);
*mutex = mtx;
return ERR_OK;
}
else {
return ERR_MEM;
}
}
/** Lock a mutex
* @param mutex the mutex to lock */
void
sys_mutex_lock(struct sys_mutex **mutex)
{
pthread_mutex_lock(&((*mutex)->mutex));
}
/** Unlock a mutex
* @param mutex the mutex to unlock */
void
sys_mutex_unlock(struct sys_mutex **mutex)
{
pthread_mutex_unlock(&((*mutex)->mutex));
}
/** Delete a mutex
* @param mutex the mutex to delete */
void
sys_mutex_free(struct sys_mutex **mutex)
{
pthread_mutex_destroy(&((*mutex)->mutex));
free(*mutex);
}
#endif /* !NO_SYS */
/*-----------------------------------------------------------------------------------*/
/* Time */
u32_t
sys_now(void)
{
struct timespec ts;
get_monotonic_time(&ts);
return (u32_t)(ts.tv_sec * 1000L + ts.tv_nsec / 1000000L);
}
u32_t
sys_jiffies(void)
{
struct timespec ts;
get_monotonic_time(&ts);
return (u32_t)(ts.tv_sec * 1000000000L + ts.tv_nsec);
}
/*-----------------------------------------------------------------------------------*/
/* Init */
void
sys_init(void)
{
}
/*-----------------------------------------------------------------------------------*/
/* Critical section */
#if SYS_LIGHTWEIGHT_PROT
/** sys_prot_t sys_arch_protect(void)
This optional function does a "fast" critical region protection and returns
the previous protection level. This function is only called during very short
critical regions. An embedded system which supports ISR-based drivers might
want to implement this function by disabling interrupts. Task-based systems
might want to implement this by using a mutex or disabling tasking. This
function should support recursive calls from the same task or interrupt. In
other words, sys_arch_protect() could be called while already protected. In
that case the return value indicates that it is already protected.
sys_arch_protect() is only required if your port is supporting an operating
system.
*/
sys_prot_t
sys_arch_protect(void)
{
/* Note that for the UNIX port, we are using a lightweight mutex, and our
* own counter (which is locked by the mutex). The return code is not actually
* used. */
if (lwprot_thread != pthread_self())
{
/* We are locking the mutex where it has not been locked before *
* or is being locked by another thread */
pthread_mutex_lock(&lwprot_mutex);
lwprot_thread = pthread_self();
lwprot_count = 1;
}
else
/* It is already locked by THIS thread */
lwprot_count++;
return 0;
}
/** void sys_arch_unprotect(sys_prot_t pval)
This optional function does a "fast" set of critical region protection to the
value specified by pval. See the documentation for sys_arch_protect() for
more information. This function is only required if your port is supporting
an operating system.
*/
void
sys_arch_unprotect(sys_prot_t pval)
{
LWIP_UNUSED_ARG(pval);
if (lwprot_thread == pthread_self())
{
if (--lwprot_count == 0)
{
lwprot_thread = (pthread_t) 0xDEAD;
pthread_mutex_unlock(&lwprot_mutex);
}
}
}
#endif /* SYS_LIGHTWEIGHT_PROT */

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#!/bin/bash
# Run me using "source setup-tapif" to get exported PRECONFIGURED_TAPIF variable
# Alternatively, add "export PRECONFIGURED_TAPIF=tap0" to ~/.bashrc
# http://backreference.org/2010/03/26/tuntap-interface-tutorial/
# After executing this script, start unixsim/simhost.
# Enter 192.168.0.2 or "http://simhost.local/" (Zeroconf)
# in your webbrowser to see simhost webpage.
sudo ip tuntap add dev tap0 mode tap user `whoami`
sudo ip link set tap0 up
sudo ip addr add 192.168.0.1/24 dev tap0
export PRECONFIGURED_TAPIF=tap0

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#
# 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>
#
all compile: simhost simrouter simnode makefsdata
.PHONY: all
include ../Common.mk
MAKEFSDATAOBJS=$(notdir $(MAKEFSDATAFILES:.c=.o))
clean:
rm -f *.o $(LWIPLIBCOMMON) $(APPLIB) simhost simnode simrouter *.s .depend* *.core core
depend dep: .depend
include .depend
.depend: simhost.c simnode.c simrouter.c $(LWIPFILES) $(APPFILES) $(MAKEFSDATAFILES)
$(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend
simhost: .depend $(LWIPLIBCOMMON) $(APPLIB) simhost.o
$(CC) $(CFLAGS) -o simhost simhost.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS)
simrouter: .depend $(LWIPLIBCOMMON) $(APPLIB) simrouter.o
$(CC) $(CFLAGS) -o simrouter simrouter.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS)
simnode: .depend $(LWIPLIBCOMMON) $(APPLIB) simnode.o
$(CC) $(CFLAGS) -o simnode simnode.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS)
makefsdata: .depend $(MAKEFSDATAOBJS)
$(CC) $(CFLAGS) -o makefsdata $(MAKEFSDATAOBJS)

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This directory contains an example of how a project using lwIP might
look. It is also the development platform of lwIP, since it can be run
as a user process under FreeBSD or Linux. There are also a number of
example applications (including a simple web server) in the apps/
directory.
Some short instructions on how to build and run lwIP on a FreeBSD or
Linux host. For FreeBSD, the tap interface must be enabled in the
kernel configuration and the kernel must be recompiled. The tap
interface is enabled by adding the line "pseudo-device tap" in the
kernel configuration. See Chapter 9 in the FreeBSD handbook for
instructions on how to build a custom FreeBSD kernel.
For Linux you might need to create a device node with
> mknod /dev/net/tun c 10 200
* Compile the code. This must be done by using GNU Make. Under
FreeBSD, GNU Make can be found in the ports collection under
/usr/ports/devel/gmake (type "make install distclean" to
install). Under Linux, GNU Make is the default "make".
> gmake (FreeBSD)
> make (Linux)
* The compilation process produces the executable file "simhost". To
run this, you have to be root.
> su (Type password for the root account)
# ./simhost
* The lwIP TCP/IP stack is now running with IP address
192.168.0.2. Some things that you can try:
To see the packets that are going to and from the lwIP stack, run
tcpdump:
# tcpdump -l -n -i tap0
You can ping lwIP:
> ping 192.168.0.2
For a telnet shell, run:
> telnet 192.168.0.2
Finally, "simhost" also includes a simple web server; the URL is
of course http://192.168.0.2/.
* Simhost has some extra features that can be
selected with command line options.
To enable runtime debug output (project must be build with -DLWIP_DEBUG):
# ./simhost -d
To ping any host, e.g. the gateway:
# ./simhost -p 192.168.0.1

49
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/*
* 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_HOOKS_H
#define LWIP_HOOKS_H
#ifdef __cplusplus
extern "C" {
#endif
#include "addons/tcp_isn/tcp_isn.h"
#define LWIP_HOOK_TCP_ISN lwip_hook_tcp_isn
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HOOKS_H */

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/*
* 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_LWIPOPTS_H
#define LWIP_LWIPOPTS_H
#include "lwip/arch.h"
#define LWIP_HOOK_FILENAME "lwip_hooks.h"
#define LWIP_IPV4 1
#define LWIP_IPV6 1
#define LWIP_DBG_MIN_LEVEL 0
#define LWIP_COMPAT_SOCKETS 1
#define TAPIF_DEBUG LWIP_DBG_ON
#define TUNIF_DEBUG LWIP_DBG_OFF
#define UNIXIF_DEBUG LWIP_DBG_OFF
#define DELIF_DEBUG LWIP_DBG_OFF
#define SIO_FIFO_DEBUG LWIP_DBG_OFF
#define TCPDUMP_DEBUG LWIP_DBG_ON
#define SLIP_DEBUG LWIP_DBG_OFF
#define PPP_DEBUG LWIP_DBG_OFF
#define MEM_DEBUG LWIP_DBG_OFF
#define MEMP_DEBUG LWIP_DBG_OFF
#define PBUF_DEBUG LWIP_DBG_OFF
#define API_LIB_DEBUG LWIP_DBG_ON
#define API_MSG_DEBUG LWIP_DBG_ON
#define TCPIP_DEBUG LWIP_DBG_ON
#define NETIF_DEBUG LWIP_DBG_ON
#define SOCKETS_DEBUG LWIP_DBG_ON
#define DEMO_DEBUG LWIP_DBG_ON
#define IP_DEBUG LWIP_DBG_ON
#define IP_REASS_DEBUG LWIP_DBG_ON
#define RAW_DEBUG LWIP_DBG_ON
#define ICMP_DEBUG LWIP_DBG_ON
#define UDP_DEBUG LWIP_DBG_ON
#define TCP_DEBUG LWIP_DBG_ON
#define TCP_INPUT_DEBUG LWIP_DBG_ON
#define TCP_OUTPUT_DEBUG LWIP_DBG_ON
#define TCP_RTO_DEBUG LWIP_DBG_ON
#define TCP_CWND_DEBUG LWIP_DBG_ON
#define TCP_WND_DEBUG LWIP_DBG_ON
#define TCP_FR_DEBUG LWIP_DBG_ON
#define TCP_QLEN_DEBUG LWIP_DBG_ON
#define TCP_RST_DEBUG LWIP_DBG_ON
extern unsigned char debug_flags;
#define LWIP_DBG_TYPES_ON debug_flags
#define NO_SYS 0
#define LWIP_SOCKET (NO_SYS==0)
#define LWIP_NETCONN (NO_SYS==0)
#define SO_REUSE 1
#define IP_SOF_BROADCAST_RECV 1
#define IP_SOF_BROADCAST 1
#define SO_REUSE_RXTOALL 1
#define LWIP_SO_RCVTIMEO (LWIP_SOCKET)
/* ---------- Memory options ---------- */
/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which
lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2
byte alignment -> define MEM_ALIGNMENT to 2. */
/* MSVC port: intel processors don't need 4-byte alignment,
but are faster that way! */
#define MEM_ALIGNMENT 4U
/* MEM_SIZE: the size of the heap memory. If the application will send
a lot of data that needs to be copied, this should be set high. */
#define MEM_SIZE 10240
/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application
sends a lot of data out of ROM (or other static memory), this
should be set high. */
#define MEMP_NUM_PBUF 16
/* MEMP_NUM_RAW_PCB: the number of UDP protocol control blocks. One
per active RAW "connection". */
#define MEMP_NUM_RAW_PCB 3
/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
per active UDP "connection". */
#define MEMP_NUM_UDP_PCB 6
/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
connections. */
#define MEMP_NUM_TCP_PCB 5
/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
connections. */
#define MEMP_NUM_TCP_PCB_LISTEN 8
/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
segments. */
#define MEMP_NUM_TCP_SEG 16
/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
timeouts. */
#define MEMP_NUM_SYS_TIMEOUT 17
/* The following four are used only with the sequential API and can be
set to 0 if the application only will use the raw API. */
/* MEMP_NUM_NETBUF: the number of struct netbufs. */
#define MEMP_NUM_NETBUF 2
/* MEMP_NUM_NETCONN: the number of struct netconns. */
#define MEMP_NUM_NETCONN 10
/* MEMP_NUM_TCPIP_MSG_*: the number of struct tcpip_msg, which is used
for sequential API communication and incoming packets. Used in
src/api/tcpip.c. */
#define MEMP_NUM_TCPIP_MSG_API 16
#define MEMP_NUM_TCPIP_MSG_INPKT 16
#define MEMP_OVERFLOW_CHECK 1
/* ---------- Pbuf options ---------- */
/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
#define PBUF_POOL_SIZE 200
/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
#define PBUF_POOL_BUFSIZE 128
/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
link level header. */
#define PBUF_LINK_HLEN 16u
/** SYS_LIGHTWEIGHT_PROT
* define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
* for certain critical regions during buffer allocation, deallocation and memory
* allocation and deallocation.
*/
#define SYS_LIGHTWEIGHT_PROT 1
#define LWIP_TCPIP_TIMEOUT 1
/* ---------- TCP options ---------- */
#define LWIP_TCP 1
#define LWIP_ALTCP (LWIP_TCP)
#define TCP_TTL 255
#ifdef LWIP_HAVE_MBEDTLS
#define LWIP_ALTCP_TLS (LWIP_TCP)
#define LWIP_ALTCP_TLS_MBEDTLS (LWIP_TCP)
#endif
#define TCP_LISTEN_BACKLOG 1
/* Controls if TCP should queue segments that arrive out of
order. Define to 0 if your device is low on memory. */
#define TCP_QUEUE_OOSEQ 1
/* TCP Maximum segment size. */
#define TCP_MSS 1024
/* TCP sender buffer space (bytes). */
#define TCP_SND_BUF 2048
/* TCP sender buffer space (pbufs). This must be at least = 2 *
TCP_SND_BUF/TCP_MSS for things to work. */
#define TCP_SND_QUEUELEN (4 * TCP_SND_BUF/TCP_MSS)
/* TCP writable space (bytes). This must be less than or equal
to TCP_SND_BUF. It is the amount of space which must be
available in the tcp snd_buf for select to return writable */
#define TCP_SNDLOWAT (TCP_SND_BUF/2)
/* TCP receive window. */
#define TCP_WND 8096
/* Maximum number of retransmissions of data segments. */
#define TCP_MAXRTX 12
/* Maximum number of retransmissions of SYN segments. */
#define TCP_SYNMAXRTX 4
/* ---------- ARP options ---------- */
#define LWIP_ARP 1
#define ARP_TABLE_SIZE 10
#define ARP_QUEUEING 1
/* ---------- IP options ---------- */
/* Define IP_FORWARD to 1 if you wish to have the ability to forward
IP packets across network interfaces. If you are going to run lwIP
on a device with only one network interface, define this to 0. */
#define IP_FORWARD 1
/* IP reassembly and segmentation.These are orthogonal even
* if they both deal with IP fragments */
#define IP_REASSEMBLY 1
#define IP_REASS_MAX_PBUFS 10
#define MEMP_NUM_REASSDATA 10
#define IP_FRAG 1
#define IPV6_FRAG_COPYHEADER 1
#define LWIP_IPV6_FRAG 1
#define LWIP_IGMP (LWIP_IPV4)
/* ---------- ICMP options ---------- */
#define ICMP_TTL 255
/* ---------- DHCP options ---------- */
/* Define LWIP_DHCP to 1 if you want DHCP configuration of
interfaces. */
#define LWIP_DHCP 0
#define LWIP_DHCP_GET_NTP_SRV (LWIP_DHCP)
/* 1 if you want to do an ARP check on the offered address
(recommended if using DHCP). */
#define DHCP_DOES_ARP_CHECK (LWIP_DHCP)
/* ---------- AUTOIP options ------- */
#define LWIP_AUTOIP (LWIP_DHCP)
#define LWIP_DHCP_AUTOIP_COOP (LWIP_DHCP)
#define LWIP_DHCP_AUTOIP_COOP_TRIES 3
/* ---------- SNTP options --------- */
extern void sntp_set_system_time(u32_t sec);
#define SNTP_SET_SYSTEM_TIME(s) sntp_set_system_time(s)
/* ---------- SNMP options ---------- */
#define LWIP_SNMP (LWIP_UDP)
#ifdef LWIP_HAVE_MBEDTLS
#define LWIP_SNMP_V3 (LWIP_SNMP)
#endif
#define MIB2_STATS (LWIP_SNMP)
#define SNMP_USE_NETCONN (LWIP_NETCONN)
#define SNMP_USE_RAW (!LWIP_NETCONN)
/* ---------- DNS options ---------- */
#define LWIP_DNS 1
/* ---------- MDNS options ---------- */
#define LWIP_MDNS_RESPONDER 1
#define LWIP_NUM_NETIF_CLIENT_DATA (LWIP_MDNS_RESPONDER)
/* ---------- UDP options ---------- */
#define LWIP_UDP 1
#define UDP_TTL 255
/* ---------- RAW options ---------- */
#define LWIP_RAW 1
#define RAW_TTL 255
/* ---------- Statistics options ---------- */
/* individual STATS options can be turned off by defining them to 0
* (e.g #define TCP_STATS 0). All of them are turned off if LWIP_STATS
* is 0
* */
#define LWIP_STATS 1
#define LWIP_NETIF_API 1
#define LWIP_NETIF_STATUS_CALLBACK 1
#define LWIP_NETIF_EXT_STATUS_CALLBACK 1
#define LWIP_NETIF_HOSTNAME 0
/* ---------- SLIP options ---------- */
#define LWIP_HAVE_SLIPIF 1 /* Set > 0 for SLIP */
/* Maximum packet size that is received by this netif */
#define SLIP_MAX_SIZE 1500
#define sio_tryread sio_read
/* ---------- 6LoWPAN options ---------- */
#define LWIP_6LOWPAN 1
/* ---------- PPP options ---------- */
#define PPP_SUPPORT 1 /* Set > 0 for PPP */
#define MPPE_SUPPORT PPP_SUPPORT
#define PPPOE_SUPPORT PPP_SUPPORT
#define PPPOL2TP_SUPPORT PPP_SUPPORT
#define PPPOS_SUPPORT PPP_SUPPORT
#if PPP_SUPPORT > 0
#define NUM_PPP 1 /* Max PPP sessions. */
/* Select modules to enable. Ideally these would be set in the makefile but
* we're limited by the command line length so you need to modify the settings
* in this file.
*/
#define PAP_SUPPORT 1 /* Set > 0 for PAP. */
#define CHAP_SUPPORT 1 /* Set > 0 for CHAP. */
#define MSCHAP_SUPPORT 0 /* Set > 0 for MSCHAP (NOT FUNCTIONAL!) */
#define CBCP_SUPPORT 0 /* Set > 0 for CBCP (NOT FUNCTIONAL!) */
#define CCP_SUPPORT 0 /* Set > 0 for CCP (NOT FUNCTIONAL!) */
#define VJ_SUPPORT 1 /* Set > 0 for VJ header compression. */
#define MD5_SUPPORT 1 /* Set > 0 for MD5 (see also CHAP) */
/*
* Timeouts.
*/
#define FSM_DEFTIMEOUT 6 /* Timeout time in seconds */
#define FSM_DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */
#define FSM_DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */
#define FSM_DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */
#define UPAP_DEFTIMEOUT 6 /* Timeout (seconds) for retransmitting req */
#define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */
#define CHAP_DEFTIMEOUT 6 /* Timeout time in seconds */
#define CHAP_DEFTRANSMITS 10 /* max # times to send challenge */
/* Interval in seconds between keepalive echo requests, 0 to disable. */
#if 1
#define LCP_ECHOINTERVAL 0
#else
#define LCP_ECHOINTERVAL 10
#endif
/* Number of unanswered echo requests before failure. */
#define LCP_MAXECHOFAILS 3
/* Max Xmit idle time (in jiffies) before resend flag char. */
#define PPP_MAXIDLEFLAG 100
/*
* Packet sizes
*
* Note - lcp shouldn't be allowed to negotiate stuff outside these
* limits. See lcp.h in the pppd directory.
* (XXX - these constants should simply be shared by lcp.c instead
* of living in lcp.h)
*/
#define PPP_MTU 1500 /* Default MTU (size of Info field) */
#if 0
#define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN)
#else
#define PPP_MAXMTU 1500 /* Largest MTU we allow */
#endif
#define PPP_MINMTU 64
#define PPP_MRU 1500 /* default MRU = max length of info field */
#define PPP_MAXMRU 1500 /* Largest MRU we allow */
#define PPP_DEFMRU 296 /* Try for this */
#define PPP_MINMRU 128 /* No MRUs below this */
#define MAXNAMELEN 256 /* max length of hostname or name for auth */
#define MAXSECRETLEN 256 /* max length of password or secret */
#endif /* PPP_SUPPORT > 0 */
#define LWIP_HTTPD_SSI 1
#endif /* LWIP_LWIPOPTS_H */

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/*
* 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 <unistd.h>
#include <fcntl.h>
#include <getopt.h>
#include <time.h>
#include <string.h>
#include "lwip/opt.h"
#include "lwip/init.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#include "lwip/ip_addr.h"
#include "lwip/dns.h"
#include "lwip/dhcp.h"
#include "lwip/stats.h"
#include "lwip/tcp.h"
#include "lwip/inet_chksum.h"
#include "lwip/tcpip.h"
#include "lwip/sockets.h"
#include "netif/tapif.h"
#include "netif/tunif.h"
#include "netif/unixif.h"
#include "netif/dropif.h"
#include "netif/pcapif.h"
#include "netif/tcpdump.h"
#ifndef LWIP_HAVE_SLIPIF
#define LWIP_HAVE_SLIPIF 0
#endif
#if LWIP_HAVE_SLIPIF
#include "netif/slipif.h"
#define SLIP_PTY_TEST 1
#endif
#if PPP_SUPPORT
#include "netif/ppp/pppos.h"
#include "lwip/sio.h"
#define PPP_PTY_TEST 1
#include <termios.h>
#endif
#include "lwip/ip_addr.h"
#include "arch/perf.h"
#include "lwip/apps/httpd.h"
#include "apps/udpecho/udpecho.h"
#include "apps/tcpecho/tcpecho.h"
#include "apps/shell/shell.h"
#include "apps/chargen/chargen.h"
#include "apps/netio/netio.h"
#include "apps/ping/ping.h"
#include "lwip/apps/netbiosns.h"
#include "lwip/apps/mdns.h"
#include "lwip/apps/sntp.h"
#include "lwip/apps/snmp.h"
#include "lwip/apps/snmp_mib2.h"
#include "apps/snmp_private_mib/private_mib.h"
#include "lwip/apps/snmpv3.h"
#include "apps/snmp_v3/snmpv3_dummy.h"
#include "lwip/apps/snmp_snmpv2_framework.h"
#include "lwip/apps/snmp_snmpv2_usm.h"
#include "lwip/apps/tftp_server.h"
#include "addons/tcp_isn/tcp_isn.h"
#if LWIP_RAW
#include "lwip/icmp.h"
#include "lwip/raw.h"
#endif
#if LWIP_SNMP
static const struct snmp_mib *mibs[] = {
&mib2,
&mib_private
#if LWIP_SNMP_V3
, &snmpframeworkmib
, &snmpusmmib
#endif
};
#endif /* LWIP_SNMP */
#if LWIP_IPV4
/* (manual) host IP configuration */
static ip_addr_t ipaddr, netmask, gw;
#endif /* LWIP_IPV4 */
struct netif netif;
/* ping out destination cmd option */
static unsigned char ping_flag;
static ip_addr_t ping_addr;
/* nonstatic debug cmd option, exported in lwipopts.h */
unsigned char debug_flags;
/** @todo add options for selecting netif, starting DHCP client etc */
static struct option longopts[] = {
/* turn on debugging output (if build with LWIP_DEBUG) */
{"debug", no_argument, NULL, 'd'},
/* help */
{"help", no_argument, NULL, 'h'},
#if LWIP_IPV4
/* gateway address */
{"gateway", required_argument, NULL, 'g'},
/* ip address */
{"ipaddr", required_argument, NULL, 'i'},
/* netmask */
{"netmask", required_argument, NULL, 'm'},
/* ping destination */
{"ping", required_argument, NULL, 'p'},
#endif /* LWIP_IPV4 */
/* new command line options go here! */
{NULL, 0, NULL, 0}
};
#define NUM_OPTS ((sizeof(longopts) / sizeof(struct option)) - 1)
static void init_netifs(void);
static void usage(void)
{
unsigned char i;
printf("options:\n");
for (i = 0; i < NUM_OPTS; i++) {
printf("-%c --%s\n",longopts[i].val, longopts[i].name);
}
}
#if 0
static void
tcp_debug_timeout(void *data)
{
LWIP_UNUSED_ARG(data);
#if TCP_DEBUG
tcp_debug_print_pcbs();
#endif /* TCP_DEBUG */
sys_timeout(5000, tcp_debug_timeout, NULL);
}
#endif
void
sntp_set_system_time(u32_t sec)
{
char buf[32];
struct tm current_time_val;
time_t current_time = (time_t)sec;
localtime_r(&current_time, &current_time_val);
strftime(buf, sizeof(buf), "%d.%m.%Y %H:%M:%S", &current_time_val);
printf("SNTP time: %s\n", buf);
}
#if LWIP_MDNS_RESPONDER
static void
srv_txt(struct mdns_service *service, void *txt_userdata)
{
err_t res;
LWIP_UNUSED_ARG(txt_userdata);
res = mdns_resp_add_service_txtitem(service, "path=/", 6);
LWIP_ERROR("mdns add service txt failed\n", (res == ERR_OK), return);
}
#endif
#if LWIP_UDP
static void*
tftp_open(const char* fname, const char* mode, u8_t is_write)
{
LWIP_UNUSED_ARG(mode);
if (is_write) {
return (void*)fopen(fname, "wb");
} else {
return (void*)fopen(fname, "rb");
}
}
static void
tftp_close(void* handle)
{
fclose((FILE*)handle);
}
static int
tftp_read(void* handle, void* buf, int bytes)
{
int ret = fread(buf, 1, bytes, (FILE*)handle);
if (ret <= 0) {
return -1;
}
return ret;
}
static int
tftp_write(void* handle, struct pbuf* p)
{
while (p != NULL) {
if (fwrite(p->payload, 1, p->len, (FILE*)handle) != (size_t)p->len) {
return -1;
}
p = p->next;
}
return 0;
}
static const struct tftp_context tftp = {
tftp_open,
tftp_close,
tftp_read,
tftp_write
};
#endif /* LWIP_UDP */
static void
tcpip_init_done(void *arg)
{
sys_sem_t *sem;
sem = (sys_sem_t *)arg;
init_netifs();
#if LWIP_IPV4
netbiosns_set_name("simhost");
netbiosns_init();
#endif /* LWIP_IPV4 */
sntp_setoperatingmode(SNTP_OPMODE_POLL);
#if LWIP_DHCP
sntp_servermode_dhcp(1); /* get SNTP server via DHCP */
#else /* LWIP_DHCP */
#if LWIP_IPV4
sntp_setserver(0, netif_ip_gw4(&netif));
#endif /* LWIP_IPV4 */
#endif /* LWIP_DHCP */
sntp_init();
#if LWIP_SNMP
lwip_privmib_init();
#if SNMP_LWIP_MIB2
#if SNMP_USE_NETCONN
snmp_threadsync_init(&snmp_mib2_lwip_locks, snmp_mib2_lwip_synchronizer);
#endif /* SNMP_USE_NETCONN */
snmp_mib2_set_syscontact_readonly((const u8_t*)"root", NULL);
snmp_mib2_set_syslocation_readonly((const u8_t*)"lwIP development PC", NULL);
snmp_mib2_set_sysdescr((const u8_t*)"simhost", NULL);
#endif /* SNMP_LWIP_MIB2 */
#if LWIP_SNMP_V3
snmpv3_dummy_init();
#endif
snmp_set_mibs(mibs, LWIP_ARRAYSIZE(mibs));
snmp_init();
#endif /* LWIP_SNMP */
#if LWIP_MDNS_RESPONDER
mdns_resp_init();
mdns_resp_add_netif(&netif, "simhost", 3600);
mdns_resp_add_service(&netif, "myweb", "_http", DNSSD_PROTO_TCP, 80, 3600, srv_txt, NULL);
#endif
#if LWIP_UDP
tftp_init(&tftp);
#endif /* LWIP_UDP */
sys_sem_signal(sem);
}
/*-----------------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------------*/
#if LWIP_HAVE_SLIPIF
/* (manual) host IP configuration */
#if LWIP_IPV4
static ip_addr_t ipaddr_slip, netmask_slip, gw_slip;
#endif /* LWIP_IPV4 */
struct netif slipif;
#endif /* LWIP_HAVE_SLIPIF */
#if PPP_SUPPORT
sio_fd_t ppp_sio;
ppp_pcb *ppp;
struct netif pppos_netif;
static void
pppos_rx_thread(void *arg)
{
u32_t len;
u8_t buffer[128];
LWIP_UNUSED_ARG(arg);
/* Please read the "PPPoS input path" chapter in the PPP documentation. */
while (1) {
len = sio_read(ppp_sio, buffer, sizeof(buffer));
if (len > 0) {
/* Pass received raw characters from PPPoS to be decoded through lwIP
* TCPIP thread using the TCPIP API. This is thread safe in all cases
* but you should avoid passing data byte after byte. */
pppos_input_tcpip(ppp, buffer, len);
}
}
}
static void
ppp_link_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: /* No error. */
{
#if LWIP_DNS
const ip_addr_t *ns;
#endif /* LWIP_DNS */
fprintf(stderr, "ppp_link_status_cb: PPPERR_NONE\n\r");
#if LWIP_IPV4
fprintf(stderr, " our_ip4addr = %s\n\r", ip4addr_ntoa(netif_ip4_addr(pppif)));
fprintf(stderr, " his_ipaddr = %s\n\r", ip4addr_ntoa(netif_ip4_gw(pppif)));
fprintf(stderr, " netmask = %s\n\r", ip4addr_ntoa(netif_ip4_netmask(pppif)));
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
fprintf(stderr, " our_ip6addr = %s\n\r", ip6addr_ntoa(netif_ip6_addr(pppif, 0)));
#endif /* LWIP_IPV6 */
#if LWIP_DNS
ns = dns_getserver(0);
fprintf(stderr, " dns1 = %s\n\r", ipaddr_ntoa(ns));
ns = dns_getserver(1);
fprintf(stderr, " dns2 = %s\n\r", ipaddr_ntoa(ns));
#endif /* LWIP_DNS */
#if PPP_IPV6_SUPPORT
fprintf(stderr, " our6_ipaddr = %s\n\r", ip6addr_ntoa(netif_ip6_addr(pppif, 0)));
#endif /* PPP_IPV6_SUPPORT */
}
break;
case PPPERR_PARAM: /* Invalid parameter. */
printf("ppp_link_status_cb: PPPERR_PARAM\n");
break;
case PPPERR_OPEN: /* Unable to open PPP session. */
printf("ppp_link_status_cb: PPPERR_OPEN\n");
break;
case PPPERR_DEVICE: /* Invalid I/O device for PPP. */
printf("ppp_link_status_cb: PPPERR_DEVICE\n");
break;
case PPPERR_ALLOC: /* Unable to allocate resources. */
printf("ppp_link_status_cb: PPPERR_ALLOC\n");
break;
case PPPERR_USER: /* User interrupt. */
printf("ppp_link_status_cb: PPPERR_USER\n");
break;
case PPPERR_CONNECT: /* Connection lost. */
printf("ppp_link_status_cb: PPPERR_CONNECT\n");
break;
case PPPERR_AUTHFAIL: /* Failed authentication challenge. */
printf("ppp_link_status_cb: PPPERR_AUTHFAIL\n");
break;
case PPPERR_PROTOCOL: /* Failed to meet protocol. */
printf("ppp_link_status_cb: PPPERR_PROTOCOL\n");
break;
case PPPERR_PEERDEAD: /* Connection timeout. */
printf("ppp_link_status_cb: PPPERR_PEERDEAD\n");
break;
case PPPERR_IDLETIMEOUT: /* Idle Timeout. */
printf("ppp_link_status_cb: PPPERR_IDLETIMEOUT\n");
break;
case PPPERR_CONNECTTIME: /* PPPERR_CONNECTTIME. */
printf("ppp_link_status_cb: PPPERR_CONNECTTIME\n");
break;
case PPPERR_LOOPBACK: /* Connection timeout. */
printf("ppp_link_status_cb: PPPERR_LOOPBACK\n");
break;
default:
printf("ppp_link_status_cb: unknown errCode %d\n", err_code);
break;
}
}
static u32_t
ppp_output_cb(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx)
{
LWIP_UNUSED_ARG(pcb);
LWIP_UNUSED_ARG(ctx);
return sio_write(ppp_sio, data, len);
}
#endif
#if LWIP_NETIF_STATUS_CALLBACK
static void
netif_status_callback(struct netif *nif)
{
printf("NETIF: %c%c%d is %s\n", nif->name[0], nif->name[1], nif->num,
netif_is_up(nif) ? "UP" : "DOWN");
#if LWIP_IPV4
printf("IPV4: Host at %s ", ip4addr_ntoa(netif_ip4_addr(nif)));
printf("mask %s ", ip4addr_ntoa(netif_ip4_netmask(nif)));
printf("gateway %s\n", ip4addr_ntoa(netif_ip4_gw(nif)));
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
printf("IPV6: Host at %s\n", ip6addr_ntoa(netif_ip6_addr(nif, 0)));
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_HOSTNAME
printf("FQDN: %s\n", netif_get_hostname(nif));
#endif /* LWIP_NETIF_HOSTNAME */
}
#endif /* LWIP_NETIF_STATUS_CALLBACK */
static void
init_netifs(void)
{
#if LWIP_HAVE_SLIPIF
#if SLIP_PTY_TEST
u8_t siodev_slip = 3;
#else
u8_t siodev_slip = 0;
#endif
#if LWIP_IPV4
netif_add(&slipif, ip_2_ip4(&ipaddr_slip), ip_2_ip4(&netmask_slip), ip_2_ip4(&gw_slip),
(void*)&siodev_slip, slipif_init, tcpip_input);
#else /* LWIP_IPV4 */
netif_add(&slipif, (void*)&siodev_slip, slipif_init, tcpip_input);
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif, 1);
#endif
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif, netif_status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
netif_set_link_up(&slipif);
netif_set_up(&slipif);
#endif /* LWIP_HAVE_SLIPIF */
#if PPP_SUPPORT
#if PPP_PTY_TEST
ppp_sio = sio_open(2);
#else
ppp_sio = sio_open(0);
#endif
if(!ppp_sio)
{
perror("Error opening device: ");
exit(1);
}
ppp = pppos_create(&pppos_netif, ppp_output_cb, ppp_link_status_cb, NULL);
if (!ppp)
{
printf("Could not create PPP control interface");
exit(1);
}
#ifdef LWIP_PPP_CHAP_TEST
ppp_set_auth(ppp, PPPAUTHTYPE_CHAP, "lwip", "mysecret");
#endif
ppp_connect(ppp, 0);
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&pppos_netif, netif_status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#endif /* PPP_SUPPORT */
#if LWIP_IPV4
#if LWIP_DHCP
IP_ADDR4(&gw, 0,0,0,0);
IP_ADDR4(&ipaddr, 0,0,0,0);
IP_ADDR4(&netmask, 0,0,0,0);
#endif /* LWIP_DHCP */
netif_add(&netif, ip_2_ip4(&ipaddr), ip_2_ip4(&netmask), ip_2_ip4(&gw), NULL, tapif_init, tcpip_input);
#else /* LWIP_IPV4 */
netif_add(&netif, NULL, tapif_init, tcpip_input);
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif, 1);
netif.ip6_autoconfig_enabled = 1;
#endif
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&netif, netif_status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
netif_set_default(&netif);
netif_set_up(&netif);
#if LWIP_DHCP
dhcp_start(&netif);
#endif /* LWIP_DHCP */
#if 0
/* Only used for testing purposes: */
netif_add(&ipaddr, &netmask, &gw, NULL, pcapif_init, tcpip_input);
#endif
#if LWIP_TCP
netio_init();
#endif
#if LWIP_TCP && LWIP_NETCONN
tcpecho_init();
shell_init();
httpd_init();
#endif
#if LWIP_UDP && LWIP_NETCONN
udpecho_init();
#endif
#if LWIP_SOCKET
chargen_init();
#endif
/* sys_timeout(5000, tcp_debug_timeout, NULL);*/
}
/*-----------------------------------------------------------------------------------*/
static void
main_thread(void *arg)
{
sys_sem_t sem;
LWIP_UNUSED_ARG(arg);
lwip_init_tcp_isn(sys_now(), (u8_t*)&netif);
if(sys_sem_new(&sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
tcpip_init(tcpip_init_done, &sem);
sys_sem_wait(&sem);
printf("TCP/IP initialized.\n");
#if LWIP_SOCKET
if (ping_flag) {
ping_init(&ping_addr);
}
#endif
printf("Applications started.\n");
#ifdef MEM_PERF
mem_perf_init("/tmp/memstats.client");
#endif /* MEM_PERF */
#if 0
stats_display();
#endif
#if PPP_SUPPORT
/* Block forever. */
sys_thread_new("pppos_rx_thread", pppos_rx_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
sys_sem_wait(&sem);
#endif
}
/*-----------------------------------------------------------------------------------*/
int
main(int argc, char **argv)
{
int ch;
char ip_str[IPADDR_STRLEN_MAX] = {0};
/* startup defaults (may be overridden by one or more opts) */
#if LWIP_IPV4
IP_ADDR4(&gw, 192,168, 0,1);
IP_ADDR4(&netmask, 255,255,255,0);
IP_ADDR4(&ipaddr, 192,168, 0,2);
#if LWIP_HAVE_SLIPIF
IP_ADDR4(&gw_slip, 192,168, 2, 1);
IP_ADDR4(&netmask_slip, 255,255,255,255);
IP_ADDR4(&ipaddr_slip, 192,168, 2, 2);
#endif
#endif /* LWIP_IPV4 */
ping_flag = 0;
/* use debug flags defined by debug.h */
debug_flags = LWIP_DBG_OFF;
while ((ch = getopt_long(argc, argv, "dhg:i:m:p:", longopts, NULL)) != -1) {
switch (ch) {
case 'd':
debug_flags |= (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT);
break;
case 'h':
usage();
exit(0);
break;
#if LWIP_IPV4
case 'g':
ipaddr_aton(optarg, &gw);
break;
case 'i':
ipaddr_aton(optarg, &ipaddr);
break;
case 'm':
ipaddr_aton(optarg, &netmask);
break;
#endif /* LWIP_IPV4 */
case 'p':
ping_flag = !0;
ipaddr_aton(optarg, &ping_addr);
strncpy(ip_str,ipaddr_ntoa(&ping_addr),sizeof(ip_str));
ip_str[sizeof(ip_str)-1] = 0; /* ensure \0 termination */
printf("Using %s to ping\n", ip_str);
break;
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
#ifdef PERF
perf_init("/tmp/simhost.perf");
#endif /* PERF */
printf("System initialized.\n");
sys_thread_new("main_thread", main_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
pause();
return 0;
}
/*-----------------------------------------------------------------------------------*/

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/*
* 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/debug.h"
#include <unistd.h>
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/sys.h"
#include "lwip/tcp.h"
#include "lwip/priv/tcp_priv.h" /* for tcp_debug_print_pcbs() */
#include "lwip/timeouts.h"
#include "lwip/stats.h"
#include "lwip/tcpip.h"
#include "netif/unixif.h"
#include "netif/dropif.h"
#include "netif/tcpdump.h"
#include "lwip/ip_addr.h"
#include "arch/perf.h"
#include "lwip/apps/httpd.h"
#include "apps/udpecho/udpecho.h"
#include "apps/tcpecho/tcpecho.h"
#include "apps/shell/shell.h"
#if LWIP_IPV4 /* @todo: IPv6 */
/* nonstatic debug cmd option, exported in lwipopts.h */
unsigned char debug_flags;
/*-----------------------------------------------------------------------------------*/
static void
tcp_timeout(void *data)
{
LWIP_UNUSED_ARG(data);
#if TCP_DEBUG && LWIP_TCP
tcp_debug_print_pcbs();
#endif /* TCP_DEBUG */
sys_timeout(5000, tcp_timeout, NULL);
}
/*-----------------------------------------------------------------------------------*/
struct netif netif_unix;
/*-----------------------------------------------------------------------------------*/
static void
tcpip_init_done(void *arg)
{
ip4_addr_t ipaddr, netmask, gw;
sys_sem_t *sem;
sem = (sys_sem_t *)arg;
IP4_ADDR(&gw, 192,168,1,1);
IP4_ADDR(&ipaddr, 192,168,1,2);
IP4_ADDR(&netmask, 255,255,255,0);
netif_set_default(netif_add(&netif_unix, &ipaddr, &netmask, &gw, NULL, unixif_init_client,
tcpip_input));
netif_set_up(&netif_unix);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif_unix, 1);
#endif
/* netif_set_default(netif_add(&ipaddr, &netmask, &gw, NULL, sioslipif_init1,
tcpip_input)); */
#if LWIP_NETCONN
tcpecho_init();
shell_init();
#if LWIP_IPV4 && LWIP_TCP
httpd_init();
#endif
udpecho_init();
#endif
printf("Applications started.\n");
sys_timeout(5000, tcp_timeout, NULL);
sys_sem_signal(sem);
}
/*-----------------------------------------------------------------------------------*/
static void
main_thread(void *arg)
{
sys_sem_t sem;
LWIP_UNUSED_ARG(arg);
if(sys_sem_new(&sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
tcpip_init(tcpip_init_done, &sem);
sys_sem_wait(&sem);
printf("TCP/IP initialized.\n");
#ifdef MEM_PERF
mem_perf_init("/tmp/memstats.client");
#endif /* MEM_PERF */
/* Block forever. */
sys_sem_wait(&sem);
}
/*-----------------------------------------------------------------------------------*/
int
main(void)
{
#ifdef PERF
perf_init("/tmp/client.perf");
#endif /* PERF */
#if LWIP_IPV4 && LWIP_TCP
tcpdump_init();
#endif
printf("System initialized.\n");
sys_thread_new("main_thread", main_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
pause();
return 0;
}
#else /* LWIP_IPV4 */
int
main(int argc, char **argv)
{
LWIP_UNUSED_ARG(argc);
LWIP_UNUSED_ARG(argv);
printf("simnode only works with IPv4\n");
return 0;
}
#endif /* LWIP_IPV4 */
/* dummy, because SNTP is pulled in via LWIP_DHCP_GET_NTP_SRV */
void
sntp_set_system_time(u32_t sec)
{
LWIP_UNUSED_ARG(sec);
}
/*-----------------------------------------------------------------------------------*/

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/*
* 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/debug.h"
#include <unistd.h>
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/sys.h"
#include "lwip/tcp.h"
#include "lwip/priv/tcp_priv.h" /* for tcp_debug_print_pcbs() */
#include "lwip/timeouts.h"
#include "lwip/stats.h"
#include "lwip/tcpip.h"
#include "netif/tapif.h"
#include "netif/unixif.h"
#include "netif/dropif.h"
#include "netif/tcpdump.h"
#include "lwip/ip_addr.h"
#include "arch/perf.h"
#include "lwip/apps/httpd.h"
#include "apps/udpecho/udpecho.h"
#include "apps/tcpecho/tcpecho.h"
#include "apps/shell/shell.h"
#if LWIP_IPV4 /* @todo: IPv6 */
/* nonstatic debug cmd option, exported in lwipopts.h */
unsigned char debug_flags;
/*-----------------------------------------------------------------------------------*/
static void
tcp_timeout(void *data)
{
LWIP_UNUSED_ARG(data);
#if TCP_DEBUG && LWIP_TCP
tcp_debug_print_pcbs();
#endif /* TCP_DEBUG */
sys_timeout(5000, tcp_timeout, NULL);
}
/*-----------------------------------------------------------------------------------*/
struct netif netif_tap, netif_unix;
/*-----------------------------------------------------------------------------------*/
static void
tcpip_init_done(void *arg)
{
ip4_addr_t ipaddr, netmask, gw;
sys_sem_t *sem;
sem = (sys_sem_t *)arg;
IP4_ADDR(&gw, 192,168,0,1);
IP4_ADDR(&ipaddr, 192,168,0,2);
IP4_ADDR(&netmask, 255,255,255,0);
netif_set_default(netif_add(&netif_tap, &ipaddr, &netmask, &gw, NULL, tapif_init,
tcpip_input));
netif_set_up(&netif_tap);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif_tap, 1);
#endif
IP4_ADDR(&gw, 192,168,1,1);
IP4_ADDR(&ipaddr, 192,168,1,1);
IP4_ADDR(&netmask, 255,255,255,0);
netif_set_default(netif_add(&netif_unix, &ipaddr, &netmask, &gw, NULL, unixif_init_server,
tcpip_input));
netif_set_up(&netif_unix);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif_unix, 1);
#endif
if(system("route add 192.168.1.1 192.168.0.2") != 0) {
return;
}
if(system("route add 192.168.1.2 192.168.0.2") != 0) {
return;
}
/*netif_set_default(netif_add(&ipaddr, &netmask, &gw, NULL, sioslipif_init1,
tcpip_input)); */
#if LWIP_NETCONN
tcpecho_init();
shell_init();
#if LWIP_IPV4 && LWIP_TCP
httpd_init();
#endif
udpecho_init();
#endif
printf("Applications started.\n");
sys_timeout(5000, tcp_timeout, NULL);
sys_sem_signal(sem);
}
static void
main_thread(void *arg)
{
sys_sem_t sem;
LWIP_UNUSED_ARG(arg);
if(sys_sem_new(&sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
tcpip_init(tcpip_init_done, &sem);
sys_sem_wait(&sem);
printf("TCP/IP initialized.\n");
#ifdef MEM_PERF
mem_perf_init("/tmp/memstats.client");
#endif /* MEM_PERF */
/* Block forever. */
sys_sem_wait(&sem);
}
/*-----------------------------------------------------------------------------------*/
int
main(void)
{
#ifdef PERF
perf_init("/tmp/client.perf");
#endif /* PERF */
#if LWIP_IPV4 && LWIP_TCP
tcpdump_init();
#endif
printf("System initialized.\n");
sys_thread_new("main_thread", main_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
pause();
return 0;
}
#else /* LWIP_IPV4 */
int
main(int argc, char **argv)
{
LWIP_UNUSED_ARG(argc);
LWIP_UNUSED_ARG(argv);
printf("simrouter only works with IPv4\n");
return 0;
}
#endif /* LWIP_IPV4 */
/* dummy, because SNTP is pulled in via LWIP_DHCP_GET_NTP_SRV */
void
sntp_set_system_time(u32_t sec)
{
LWIP_UNUSED_ARG(sec);
}
/*-----------------------------------------------------------------------------------*/

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/* deliberateliy empty */

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/* config.h for check-0.11.0 on win32 under MSVC/MinGW */
#ifdef _MSC_VER
typedef unsigned int pid_t;
typedef unsigned int uint32_t;
typedef int ssize_t;
#define snprintf _snprintf
#define HAVE_DECL_STRDUP 1
#define HAVE_DECL_FILENO 1
#define HAVE_DECL_PUTENV 1
#define _CRT_SECURE_NO_WARNINGS
/* disable some warnings */
#pragma warning (disable: 4090) /* const assigned to non-const */
#pragma warning (disable: 4996) /* fileno is deprecated */
#endif /* _ MSC_VER */
#define LWIP_UNITTESTS_NOFORK
#include <io.h>
typedef unsigned int clockid_t;
typedef unsigned int timer_t;
#define STRUCT_TIMESPEC_DEFINITION_MISSING

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#ifndef MY_STDBOOL_H
#define MY_STDBOOL_H
typedef int bool;
#define true 1
#define false 0
#define __bool_true_false_are_defined 1
#endif

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#ifndef LWIP_SYS__TIME_H
#define LWIP_SYS__TIME_H
#include <stdlib.h> /* time_t */
struct timeval {
time_t tv_sec; /* seconds */
long tv_usec; /* and microseconds */
};
int gettimeofday(struct timeval* tp, void* tzp);
#endif

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#include <time.h>
#include <windows.h>
#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
#else
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
#endif
#include "config.h"
struct timezone
{
int tz_minuteswest; /* minutes W of Greenwich */
int tz_dsttime; /* type of dst correction */
};
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
FILETIME ft;
unsigned __int64 tmpres = 0;
static int tzflag;
if (NULL != tv)
{
GetSystemTimeAsFileTime(&ft);
tmpres |= ft.dwHighDateTime;
tmpres <<= 32;
tmpres |= ft.dwLowDateTime;
/*converting file time to unix epoch*/
tmpres -= DELTA_EPOCH_IN_MICROSECS;
tmpres /= 10; /*convert into microseconds*/
tv->tv_sec = (long)(tmpres / 1000000UL);
tv->tv_usec = (long)(tmpres % 1000000UL);
}
if (NULL != tz)
{
if (!tzflag)
{
_tzset();
tzflag++;
}
tz->tz_minuteswest = _timezone / 60;
tz->tz_dsttime = _daylight;
}
return 0;
}
struct tm *
localtime_r(const time_t *timer, struct tm *result)
{
struct tm *local_result;
local_result = localtime (timer);
if (local_result == NULL || result == NULL)
return NULL;
memcpy(result, local_result, sizeof (result));
return result;
}

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#ifndef LWIP_UNISTD_H
#define LWIP_UNISTD_H
/* include io.h for read() and write() */
#include <io.h>
#endif

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#pragma pack(push,1)

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/*
* 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_ARCH_CC_H
#define LWIP_ARCH_CC_H
#ifdef _MSC_VER
#pragma warning (disable: 4127) /* conditional expression is constant */
#pragma warning (disable: 4996) /* 'strncpy' was declared deprecated */
#pragma warning (disable: 4103) /* structure packing changed by including file */
#pragma warning (disable: 4820) /* 'x' bytes padding added after data member 'y' */
#endif
#define LWIP_PROVIDE_ERRNO
/* Define platform endianness (might already be defined) */
#ifndef BYTE_ORDER
#define BYTE_ORDER LITTLE_ENDIAN
#endif /* BYTE_ORDER */
typedef int sys_prot_t;
#ifdef _MSC_VER
/* define _INTPTR for Win32 MSVC stdint.h */
#define _INTPTR 2
/* Do not use lwIP default definitions for format strings
* because these do not work with MSVC 2010 compiler (no inttypes.h)
*/
#define LWIP_NO_INTTYPES_H 1
/* Define (sn)printf formatters for these lwIP types */
#define X8_F "02x"
#define U16_F "hu"
#define U32_F "lu"
#define S32_F "ld"
#define X32_F "lx"
#define S16_F "hd"
#define X16_F "hx"
#define SZT_F "lu"
#endif /* _MSC_VER */
/* Compiler hints for packing structures */
#define PACK_STRUCT_USE_INCLUDES
#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
printf("Assertion \"%s\" failed at line %d in %s\n", message, __LINE__, __FILE__); \
fflush(NULL);handler;} } while(0)
#ifdef _MSC_VER
/* C runtime functions redefined */
#define snprintf _snprintf
#define strdup _strdup
#endif
#ifndef LWIP_NORAND
extern unsigned int sys_win_rand(void);
#define LWIP_RAND() (sys_win_rand())
#endif
#define PPP_INCLUDE_SETTINGS_HEADER
#endif /* LWIP_ARCH_CC_H */

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#pragma pack(pop)

40
ext/lwip-contrib/ports/win32/include/arch/perf.h Normal file
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/*
* Copyright (c) 2001, 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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_PERF_H
#define LWIP_PERF_H
#define PERF_START /* null definition */
#define PERF_STOP(x) /* null definition */
#endif /* LWIP_PERF_H */

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/*
* 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_ARCH_SYS_ARCH_H
#define LWIP_ARCH_SYS_ARCH_H
/* HANDLE is used for sys_sem_t but we won't include windows.h */
struct _sys_sem {
void *sem;
};
typedef struct _sys_sem sys_sem_t;
#define sys_sem_valid_val(sema) (((sema).sem != NULL) && ((sema).sem != (void*)-1))
#define sys_sem_valid(sema) (((sema) != NULL) && sys_sem_valid_val(*(sema)))
#define sys_sem_set_invalid(sema) ((sema)->sem = NULL)
/* HANDLE is used for sys_mutex_t but we won't include windows.h */
struct _sys_mut {
void *mut;
};
typedef struct _sys_mut sys_mutex_t;
#define sys_mutex_valid_val(mutex) (((mutex).mut != NULL) && ((mutex).mut != (void*)-1))
#define sys_mutex_valid(mutex) (((mutex) != NULL) && sys_mutex_valid_val(*(mutex)))
#define sys_mutex_set_invalid(mutex) ((mutex)->mut = NULL)
#ifndef MAX_QUEUE_ENTRIES
#define MAX_QUEUE_ENTRIES 100
#endif
struct lwip_mbox {
void* sem;
void* q_mem[MAX_QUEUE_ENTRIES];
u32_t head, tail;
};
typedef struct lwip_mbox sys_mbox_t;
#define SYS_MBOX_NULL NULL
#define sys_mbox_valid_val(mbox) (((mbox).sem != NULL) && ((mbox).sem != (void*)-1))
#define sys_mbox_valid(mbox) ((mbox != NULL) && sys_mbox_valid_val(*(mbox)))
#define sys_mbox_set_invalid(mbox) ((mbox)->sem = NULL)
/* DWORD (thread id) is used for sys_thread_t but we won't include windows.h */
typedef u32_t sys_thread_t;
sys_sem_t* sys_arch_netconn_sem_get(void);
void sys_arch_netconn_sem_alloc(void);
void sys_arch_netconn_sem_free(void);
#define LWIP_NETCONN_THREAD_SEM_GET() sys_arch_netconn_sem_get()
#define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc()
#define LWIP_NETCONN_THREAD_SEM_FREE() sys_arch_netconn_sem_free()
int lwip_win32_keypressed(void);
#endif /* LWIP_ARCH_SYS_ARCH_H */

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/*
* 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_LWIPOPTS_H
#define LWIP_LWIPOPTS_H
#define LWIP_IPV4 1
#define LWIP_IPV6 1
#define NO_SYS 0
#define LWIP_SOCKET (NO_SYS==0)
#define LWIP_NETCONN (NO_SYS==0)
#define LWIP_NETIF_API (NO_SYS==0)
#define LWIP_IGMP LWIP_IPV4
#define LWIP_ICMP LWIP_IPV4
#define LWIP_SNMP LWIP_UDP
#define MIB2_STATS LWIP_SNMP
#ifdef LWIP_HAVE_MBEDTLS
#define LWIP_SNMP_V3 (LWIP_SNMP)
#endif
#define LWIP_DNS LWIP_UDP
#define LWIP_MDNS_RESPONDER LWIP_UDP
#define LWIP_NUM_NETIF_CLIENT_DATA (LWIP_MDNS_RESPONDER)
#define LWIP_HAVE_LOOPIF 1
#define LWIP_NETIF_LOOPBACK 1
#define LWIP_LOOPBACK_MAX_PBUFS 10
#define TCP_LISTEN_BACKLOG 1
#define LWIP_COMPAT_SOCKETS 1
#define LWIP_SO_RCVTIMEO 1
#define LWIP_SO_RCVBUF 1
#define LWIP_TCPIP_CORE_LOCKING 1
#define LWIP_NETIF_LINK_CALLBACK 1
#define LWIP_NETIF_STATUS_CALLBACK 1
#ifdef LWIP_DEBUG
#define LWIP_DBG_MIN_LEVEL 0
#define PPP_DEBUG LWIP_DBG_OFF
#define MEM_DEBUG LWIP_DBG_OFF
#define MEMP_DEBUG LWIP_DBG_OFF
#define PBUF_DEBUG LWIP_DBG_OFF
#define API_LIB_DEBUG LWIP_DBG_OFF
#define API_MSG_DEBUG LWIP_DBG_OFF
#define TCPIP_DEBUG LWIP_DBG_OFF
#define NETIF_DEBUG LWIP_DBG_OFF
#define SOCKETS_DEBUG LWIP_DBG_OFF
#define DNS_DEBUG LWIP_DBG_OFF
#define AUTOIP_DEBUG LWIP_DBG_OFF
#define DHCP_DEBUG LWIP_DBG_OFF
#define IP_DEBUG LWIP_DBG_OFF
#define IP_REASS_DEBUG LWIP_DBG_OFF
#define ICMP_DEBUG LWIP_DBG_OFF
#define IGMP_DEBUG LWIP_DBG_OFF
#define UDP_DEBUG LWIP_DBG_OFF
#define TCP_DEBUG LWIP_DBG_OFF
#define TCP_INPUT_DEBUG LWIP_DBG_OFF
#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF
#define TCP_RTO_DEBUG LWIP_DBG_OFF
#define TCP_CWND_DEBUG LWIP_DBG_OFF
#define TCP_WND_DEBUG LWIP_DBG_OFF
#define TCP_FR_DEBUG LWIP_DBG_OFF
#define TCP_QLEN_DEBUG LWIP_DBG_OFF
#define TCP_RST_DEBUG LWIP_DBG_OFF
#endif
#define LWIP_DBG_TYPES_ON (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)
/* ---------- Memory options ---------- */
/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which
lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2
byte alignment -> define MEM_ALIGNMENT to 2. */
/* MSVC port: intel processors don't need 4-byte alignment,
but are faster that way! */
#define MEM_ALIGNMENT 4U
/* MEM_SIZE: the size of the heap memory. If the application will send
a lot of data that needs to be copied, this should be set high. */
#define MEM_SIZE 10240
/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application
sends a lot of data out of ROM (or other static memory), this
should be set high. */
#define MEMP_NUM_PBUF 16
/* MEMP_NUM_RAW_PCB: the number of UDP protocol control blocks. One
per active RAW "connection". */
#define MEMP_NUM_RAW_PCB 3
/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
per active UDP "connection". */
#define MEMP_NUM_UDP_PCB 4
/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
connections. */
#define MEMP_NUM_TCP_PCB 5
/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
connections. */
#define MEMP_NUM_TCP_PCB_LISTEN 8
/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
segments. */
#define MEMP_NUM_TCP_SEG 16
/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
timeouts. */
#define MEMP_NUM_SYS_TIMEOUT 17
/* The following four are used only with the sequential API and can be
set to 0 if the application only will use the raw API. */
/* MEMP_NUM_NETBUF: the number of struct netbufs. */
#define MEMP_NUM_NETBUF 2
/* MEMP_NUM_NETCONN: the number of struct netconns. */
#define MEMP_NUM_NETCONN 10
/* MEMP_NUM_TCPIP_MSG_*: the number of struct tcpip_msg, which is used
for sequential API communication and incoming packets. Used in
src/api/tcpip.c. */
#define MEMP_NUM_TCPIP_MSG_API 16
#define MEMP_NUM_TCPIP_MSG_INPKT 16
/* ---------- Pbuf options ---------- */
/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
#define PBUF_POOL_SIZE 160
/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
#define PBUF_POOL_BUFSIZE 128
/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
link level header. */
#define PBUF_LINK_HLEN 16
/** SYS_LIGHTWEIGHT_PROT
* define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
* for certain critical regions during buffer allocation, deallocation and memory
* allocation and deallocation.
*/
#define SYS_LIGHTWEIGHT_PROT (NO_SYS==0)
/* ---------- TCP options ---------- */
#define LWIP_TCP 1
#define TCP_TTL 255
#define LWIP_ALTCP (LWIP_TCP)
#ifdef LWIP_HAVE_MBEDTLS
#define LWIP_ALTCP_TLS (LWIP_TCP)
#define LWIP_ALTCP_TLS_MBEDTLS (LWIP_TCP)
#endif
/* Controls if TCP should queue segments that arrive out of
order. Define to 0 if your device is low on memory. */
#define TCP_QUEUE_OOSEQ 1
/* TCP Maximum segment size. */
#define TCP_MSS 1024
/* TCP sender buffer space (bytes). */
#define TCP_SND_BUF 2048
/* TCP sender buffer space (pbufs). This must be at least = 2 *
TCP_SND_BUF/TCP_MSS for things to work. */
#define TCP_SND_QUEUELEN (4 * TCP_SND_BUF/TCP_MSS)
/* TCP writable space (bytes). This must be less than or equal
to TCP_SND_BUF. It is the amount of space which must be
available in the tcp snd_buf for select to return writable */
#define TCP_SNDLOWAT (TCP_SND_BUF/2)
/* TCP receive window. */
#define TCP_WND 8096
/* Maximum number of retransmissions of data segments. */
#define TCP_MAXRTX 12
/* Maximum number of retransmissions of SYN segments. */
#define TCP_SYNMAXRTX 4
/* ---------- ARP options ---------- */
#define LWIP_ARP 1
#define ARP_TABLE_SIZE 10
#define ARP_QUEUEING 1
/* ---------- IP options ---------- */
/* Define IP_FORWARD to 1 if you wish to have the ability to forward
IP packets across network interfaces. If you are going to run lwIP
on a device with only one network interface, define this to 0. */
#define IP_FORWARD 1
/* IP reassembly and segmentation.These are orthogonal even
* if they both deal with IP fragments */
#define IP_REASSEMBLY 1
#define IP_REASS_MAX_PBUFS 10
#define MEMP_NUM_REASSDATA 10
#define IP_FRAG 1
/* ---------- ICMP options ---------- */
#define ICMP_TTL 255
/* ---------- DHCP options ---------- */
/* Define LWIP_DHCP to 1 if you want DHCP configuration of
interfaces. */
#define LWIP_DHCP LWIP_UDP
/* 1 if you want to do an ARP check on the offered address
(recommended). */
#define DHCP_DOES_ARP_CHECK (LWIP_DHCP)
/* ---------- AUTOIP options ------- */
#define LWIP_AUTOIP (LWIP_DHCP)
#define LWIP_DHCP_AUTOIP_COOP (LWIP_DHCP && LWIP_AUTOIP)
/* ---------- UDP options ---------- */
#define LWIP_UDP 1
#define LWIP_UDPLITE LWIP_UDP
#define UDP_TTL 255
/* ---------- RAW options ---------- */
#define LWIP_RAW 1
/* ---------- Statistics options ---------- */
#define LWIP_STATS 1
#define LWIP_STATS_DISPLAY 1
#if LWIP_STATS
#define LINK_STATS 1
#define IP_STATS 1
#define ICMP_STATS 1
#define IGMP_STATS 1
#define IPFRAG_STATS 1
#define UDP_STATS 1
#define TCP_STATS 1
#define MEM_STATS 1
#define MEMP_STATS 1
#define PBUF_STATS 1
#define SYS_STATS 1
#endif /* LWIP_STATS */
/* ---------- PPP options ---------- */
#define PPP_SUPPORT 1 /* Set > 0 for PPP */
#if PPP_SUPPORT
#define NUM_PPP 1 /* Max PPP sessions. */
/* Select modules to enable. Ideally these would be set in the makefile but
* we're limited by the command line length so you need to modify the settings
* in this file.
*/
#define PPPOE_SUPPORT 1
#define PPPOS_SUPPORT 1
#define PAP_SUPPORT 1 /* Set > 0 for PAP. */
#define CHAP_SUPPORT 1 /* Set > 0 for CHAP. */
#define MSCHAP_SUPPORT 0 /* Set > 0 for MSCHAP */
#define CBCP_SUPPORT 0 /* Set > 0 for CBCP (NOT FUNCTIONAL!) */
#define CCP_SUPPORT 0 /* Set > 0 for CCP */
#define VJ_SUPPORT 1 /* Set > 0 for VJ header compression. */
#define MD5_SUPPORT 1 /* Set > 0 for MD5 (see also CHAP) */
#endif /* PPP_SUPPORT */
#endif /* LWIP_LWIPOPTS_H */

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#ifdef _MSC_VER
#pragma warning (disable: 4242) /* PPP only: conversion from 'x' to 'y', possible loss of data */
#pragma warning (disable: 4244) /* PPP only: conversion from 'x' to 'y', possible loss of data (again?) */
#pragma warning (disable: 4310) /* PPP only: cast truncates constant value */
#pragma warning (disable: 4706) /* PPP only: assignment within conditional expression */
#endif /* MSC_VER */

72
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/**
* Additional settings for the win32 port.
* Copy this to lwipcfg_msvc.h and make the config changes you need.
*/
/* configuration for this port */
#define PPP_USERNAME "Admin"
#define PPP_PASSWORD "pass"
/** Define this to the index of the windows network adapter to use */
#define PACKET_LIB_ADAPTER_NR 1
/** Define this to the GUID of the windows network adapter to use
* or NOT define this if you want PACKET_LIB_ADAPTER_NR to be used */
/*#define PACKET_LIB_ADAPTER_GUID "00000000-0000-0000-0000-000000000000"*/
/*#define PACKET_LIB_GET_ADAPTER_NETADDRESS(addr) IP4_ADDR((addr), 192,168,1,0)*/
/*#define PACKET_LIB_QUIET*/
/* If these 2 are not defined, the corresponding config setting is used */
/* #define USE_DHCP 0 */
/* #define USE_AUTOIP 0 */
/* #define USE_PCAPIF 1 */
#define LWIP_PORT_INIT_IPADDR(addr) IP4_ADDR((addr), 192,168,1,200)
#define LWIP_PORT_INIT_GW(addr) IP4_ADDR((addr), 192,168,1,1)
#define LWIP_PORT_INIT_NETMASK(addr) IP4_ADDR((addr), 255,255,255,0)
/* remember to change this MAC address to suit your needs!
the last octet will be increased by netif->num for each netif */
#define LWIP_MAC_ADDR_BASE {0x00,0x01,0x02,0x03,0x04,0x05}
/* #define USE_SLIPIF 0 */
/* #define SIO_USE_COMPORT 0 */
#ifdef USE_SLIPIF
#if USE_SLIPIF
#define LWIP_PORT_INIT_SLIP1_IPADDR(addr) IP4_ADDR((addr), 192, 168, 2, 2)
#define LWIP_PORT_INIT_SLIP1_GW(addr) IP4_ADDR((addr), 192, 168, 2, 1)
#define LWIP_PORT_INIT_SLIP1_NETMASK(addr) IP4_ADDR((addr), 255, 255, 255, 0)
#if USE_SLIPIF > 1
#define LWIP_PORT_INIT_SLIP2_IPADDR(addr) IP4_ADDR((addr), 192, 168, 2, 1)
#define LWIP_PORT_INIT_SLIP2_GW(addr) IP4_ADDR((addr), 0, 0, 0, 0)
#define LWIP_PORT_INIT_SLIP2_NETMASK(addr) IP4_ADDR((addr), 255, 255, 255, 0)*/
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#endif /* USE_SLIPIF */
/* configuration for applications */
#define LWIP_CHARGEN_APP 0
#define LWIP_DNS_APP 0
#define LWIP_HTTPD_APP 0
/* Set this to 1 to use the netconn http server,
* otherwise the raw api server will be used. */
/*#define LWIP_HTTPD_APP_NETCONN */
#define LWIP_NETBIOS_APP 0
#define LWIP_NETIO_APP 0
#define LWIP_PING_APP 0
#define LWIP_RTP_APP 0
#define LWIP_SHELL_APP 0
#define LWIP_SNTP_APP 0
#define LWIP_SOCKET_EXAMPLES_APP 0
#define LWIP_TCPECHO_APP 0
/* Set this to 1 to use the netconn tcpecho server,
* otherwise the raw api server will be used. */
/*#define LWIP_TCPECHO_APP_NETCONN */
#define LWIP_UDPECHO_APP 0
#define LWIP_LWIPERF_APP 0
/*#define USE_DHCP 1*/
/*#define USE_AUTOIP 1*/
/* define this to your custom application-init function */
/* #define LWIP_APP_INIT my_app_init() */

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/* OPTIONAL: Pools to replace heap allocation
* Optional: Pools can be used instead of the heap for mem_malloc. If
* so, these should be defined here, in increasing order according to
* the pool element size.
*
* LWIP_MALLOC_MEMPOOL(number_elements, element_size)
*/
#if MEM_USE_POOLS
LWIP_MALLOC_MEMPOOL_START
LWIP_MALLOC_MEMPOOL(100, 256)
LWIP_MALLOC_MEMPOOL(50, 512)
LWIP_MALLOC_MEMPOOL(20, 1024)
LWIP_MALLOC_MEMPOOL(20, 1536)
LWIP_MALLOC_MEMPOOL_END
#endif /* MEM_USE_POOLS */
/* Optional: Your custom pools can go here if you would like to use
* lwIP's memory pools for anything else.
*/
LWIP_MEMPOOL(SYS_MBOX, 22, 100, "SYS_MBOX")

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#
# 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>
#
CC=gcc
# Architecture specific files.
LWIPARCH?=$(CONTRIBDIR)/ports/win32
ARCHFILES=$(LWIPARCH)/sys_arch.c $(LWIPARCH)/test.c $(LWIPARCH)/pcapif.c \
$(LWIPARCH)/pcapif_helper.c $(LWIPARCH)/sio.c
WIN32_COMMON_MK_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
include $(WIN32_COMMON_MK_DIR)/../../Common.allports.mk
PCAPDIR=$(PCAP_DIR)/Include
LDFLAGS+=-L$(PCAP_DIR)/lib -lwpcap -lpacket
# -Wno-format: GCC complains about non-standard 64 bit modifier needed for MSVC runtime
CFLAGS+=-I$(PCAPDIR) -Wno-format
pcapif.o:
$(CC) $(CFLAGS) -Wno-error -Wno-redundant-decls -c $(<:.o=.c)
pcapif_helper.o:
$(CC) $(CFLAGS) -std=c99 -Wno-redundant-decls -c $(<:.o=.c)

48
ext/lwip-contrib/ports/win32/mingw/Makefile Normal file
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#
# 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>
#
all ipv4 compile: test
.PHONY: all
include Common.mk
clean:
cmd /c del /q *.o $(LWIPLIBCOMMON) $(APPLIB) test.exe *.s .depend* *.map
depend dep: .depend
include .depend
.depend: $(LWIPFILES) $(APPFILES)
$(CCDEP) $(CFLAGS) -MM $^ > .depend || cmd /c del .depend
test: .depend $(LWIPLIBCOMMON) $(APPLIB) test.o
$(CC) $(CFLAGS) -o test test.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS) -Xlinker -Map=test.map

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ext/lwip-contrib/ports/win32/pcapif.c Normal file
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#ifndef LWIP_PCAPIF_H
#define LWIP_PCAPIF_H
#ifdef __cplusplus
extern "C" {
#endif
#include "lwip/err.h"
/** Set to 1 to let rx use an own thread (only for NO_SYS==0).
* If set to 0, ethernetif_poll is used to poll for packets.
*/
#ifndef PCAPIF_RX_USE_THREAD
#define PCAPIF_RX_USE_THREAD !NO_SYS
#endif
#if PCAPIF_RX_USE_THREAD && NO_SYS
#error "Can't create a dedicated RX thread with NO_SYS==1"
#endif
struct netif;
err_t pcapif_init (struct netif *netif);
void pcapif_shutdown(struct netif *netif);
#if !PCAPIF_RX_USE_THREAD
void pcapif_poll (struct netif *netif);
#endif /* !PCAPIF_RX_USE_THREAD */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_PCAPIF_H */

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/**
* pcapif_helper.c - This file is part of lwIP pcapif and provides helper functions
* for managing the link state.
*/
#include "pcapif_helper.h"
#include <stdlib.h>
#include <stdio.h>
#include "lwip/arch.h"
#ifdef WIN32
#define WIN32_LEAN_AND_MEAN
#ifdef _MSC_VER
#pragma warning( push, 3 )
#endif
#include <windows.h>
#include <packet32.h>
#include <ntddndis.h>
#ifdef _MSC_VER
#pragma warning ( pop )
#endif
struct pcapifh_linkstate {
LPADAPTER lpAdapter;
PPACKET_OID_DATA ppacket_oid_data;
};
struct pcapifh_linkstate* pcapifh_linkstate_init(char *adapter_name)
{
struct pcapifh_linkstate* state = (struct pcapifh_linkstate*)malloc(sizeof(struct pcapifh_linkstate));
if (state != NULL) {
memset(state, 0, sizeof(struct pcapifh_linkstate));
state->ppacket_oid_data = (PPACKET_OID_DATA)malloc(sizeof(PACKET_OID_DATA) + sizeof(NDIS_MEDIA_STATE));
if (state->ppacket_oid_data == NULL) {
free(state);
state = NULL;
} else {
state->lpAdapter = PacketOpenAdapter((char*)adapter_name);
if ((state->lpAdapter == NULL) || (state->lpAdapter->hFile == INVALID_HANDLE_VALUE)) {
/* failed to open adapter */
free(state);
state = NULL;
}
}
}
return state;
}
enum pcapifh_link_event pcapifh_linkstate_get(struct pcapifh_linkstate* state)
{
enum pcapifh_link_event ret = PCAPIF_LINKEVENT_UNKNOWN;
if (state != NULL) {
state->ppacket_oid_data->Oid = OID_GEN_MEDIA_CONNECT_STATUS;
state->ppacket_oid_data->Length = sizeof(NDIS_MEDIA_STATE);
if (PacketRequest(state->lpAdapter, FALSE, state->ppacket_oid_data)) {
NDIS_MEDIA_STATE fNdisMediaState;
fNdisMediaState = (*((PNDIS_MEDIA_STATE)(state->ppacket_oid_data->Data)));
ret = ((fNdisMediaState == NdisMediaStateConnected) ? PCAPIF_LINKEVENT_UP : PCAPIF_LINKEVENT_DOWN);
}
}
return ret;
}
void pcapifh_linkstate_close(struct pcapifh_linkstate* state)
{
if (state != NULL) {
if (state->lpAdapter != NULL) {
PacketCloseAdapter(state->lpAdapter);
}
if (state->ppacket_oid_data != NULL) {
free(state->ppacket_oid_data);
}
free(state);
}
}
#else /* WIN32 */
/* @todo: add linux/unix implementation? */
struct pcapifh_linkstate {
u8_t empty;
};
struct pcapifh_linkstate* pcapifh_linkstate_init(char *adapter_name)
{
LWIP_UNUSED_ARG(adapter_name);
return NULL;
}
enum pcapifh_link_event pcapifh_linkstate_get(struct pcapifh_linkstate* state)
{
LWIP_UNUSED_ARG(state);
return PCAPIF_LINKEVENT_UP;
}
void pcapifh_linkstate_close(struct pcapifh_linkstate* state)
{
LWIP_UNUSED_ARG(state);
}
#endif /* WIN32 */

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#ifndef LWIP_PCAPIF_HELPER_H
#define LWIP_PCAPIF_HELPER_H
#ifdef __cplusplus
extern "C" {
#endif
struct pcapifh_linkstate;
enum pcapifh_link_event {
PCAPIF_LINKEVENT_UNKNOWN,
PCAPIF_LINKEVENT_UP,
PCAPIF_LINKEVENT_DOWN
};
struct pcapifh_linkstate* pcapifh_linkstate_init(char *adapter_name);
enum pcapifh_link_event pcapifh_linkstate_get(struct pcapifh_linkstate* state);
void pcapifh_linkstate_close(struct pcapifh_linkstate* state);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_PCAPIF_HELPER_H */

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lwIP for Win32
This is an example port of lwIP for Win32. It uses WinPCAP to send & receive packets.
To compile it, use the MSVC projects in the 'msvc' subdir or the Makefile in the 'mingw' subdir.
For both compilers:
- the lwIP core repository must be in a folder "lwip" next to the "contrib" folder
- you have to set an environment variable PCAP_DIR pointing to the WinPcap Developer's
Pack (containing 'include' and 'lib')
You also will have to copy the file 'lwipcfg_msvc.h.example' to
'lwipcfg_msvc.h' and modify to suit your needs (WinPcap adapter number,
IP configuration, applications...).
Included in the contrib\ports\win32 directory is the network interface driver
using the winpcap library.
lwIP: http://savannah.nongnu.org/projects/lwip/
WinPCap: https://www.winpcap.org/devel.htm
Visual C++: http://www.microsoft.com/express/download/
To compile the unittests (msvc\lwIP_unittests.sln), download check (tested with v0.11.0) from
https://github.com/libcheck/check/releases/
and place it in a folder "check" next to the "contrib" folder.

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ext/lwip-contrib/ports/win32/sio.c Normal file
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/*
* 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.
*
*/
#include <lwip/opt.h>
#include <lwip/sys.h>
#include <lwip/sio.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef _MSC_VER
#pragma warning (push, 3)
#endif
#include <windows.h>
#ifdef _MSC_VER
#pragma warning (pop)
#endif
#include "lwipcfg_msvc.h"
/** When 1, use COM ports, when 0, use named pipes (for simulation). */
#ifndef SIO_USE_COMPORT
#define SIO_USE_COMPORT 1
#endif
/** If SIO_USE_COMPORT==1, use COMx, if 0, use a pipe (default) */
#if SIO_USE_COMPORT
#define SIO_DEVICENAME "\\\\.\\COM"
#else
#define SIO_DEVICENAME "\\\\.\\pipe\\lwip"
#endif
#if SIO_USE_COMPORT
#ifndef SIO_COMPORT_SPEED
#define SIO_COMPORT_SPEED 115200
#endif
#ifndef SIO_COMPORT_BYTESIZE
#define SIO_COMPORT_BYTESIZE 8
#endif
#ifndef SIO_COMPORT_STOPBITS
#define SIO_COMPORT_STOPBITS 0 /* ONESTOPBIT */
#endif
#ifndef SIO_COMPORT_PARITY
#define SIO_COMPORT_PARITY 0 /* NOPARITY */
#endif
#endif /* SIO_USE_COMPORT */
static int sio_abort = 0;
/* \\.\pipe\lwip0 */
/* pppd /dev/ttyS0 logfile mylog debug nocrtscts local noauth noccp ms-dns 212.27.54.252 192.168.0.4:192.168.0.5
*/
/**
* SIO_DEBUG: Enable debugging for SIO.
*/
#ifndef SIO_DEBUG
#define SIO_DEBUG LWIP_DBG_OFF
#endif
#if SIO_USE_COMPORT
/** When using a real COM port, set up the
* serial line settings (baudrate etc.)
*/
static BOOL
sio_setup(HANDLE fd)
{
COMMTIMEOUTS cto;
DCB dcb;
/* set up baudrate and other communication settings */
memset(&dcb, 0, sizeof(dcb));
/* Obtain the DCB structure for the device */
if (!GetCommState(fd, &dcb)) {
return FALSE;
}
/* Set the new data */
dcb.BaudRate = SIO_COMPORT_SPEED;
dcb.ByteSize = SIO_COMPORT_BYTESIZE;
dcb.StopBits = 0; /* ONESTOPBIT */
dcb.Parity = 0; /* NOPARITY */
dcb.fParity = 0; /* parity is not used */
/* do not use flow control */
/*dcb.fOutxDsrFlow = dcb.fDtrControl = 0;
dcb.fOutxCtsFlow = dcb.fRtsControl = 0;
dcb.fErrorChar = dcb.fNull = 0;
dcb.fInX = dcb.fOutX = 0;
dcb.XonChar = dcb.XoffChar = 0;
dcb.XonLim = dcb.XoffLim = 100;*/
/* Set the new DCB structure */
if (!SetCommState(fd, &dcb)) {
return FALSE;
}
memset(&cto, 0, sizeof(cto));
if(!GetCommTimeouts(fd, &cto))
{
return FALSE;
}
/* change read timeout, leave write timeout as it is */
cto.ReadIntervalTimeout = 1;
cto.ReadTotalTimeoutMultiplier = 0;
cto.ReadTotalTimeoutConstant = 1; /* 1 ms */
if(!SetCommTimeouts(fd, &cto)) {
return FALSE;
}
return TRUE;
}
#endif /* SIO_USE_COMPORT */
/**
* Opens a serial device for communication.
*
* @param devnum device number
* @return handle to serial device if successful, NULL otherwise
*/
sio_fd_t sio_open(u8_t devnum)
{
HANDLE fileHandle = INVALID_HANDLE_VALUE;
CHAR fileName[256];
LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu)\n", (DWORD)devnum));
#if SIO_USE_COMPORT
_snprintf(fileName, 255, SIO_DEVICENAME"%lu", (DWORD)(devnum));
#else /* SIO_USE_COMPORT */
_snprintf(fileName, 255, SIO_DEVICENAME"%lu", (DWORD)(devnum & ~1));
if ((devnum & 1) == 0) {
fileHandle = CreateNamedPipeA(fileName, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_NOWAIT,
PIPE_UNLIMITED_INSTANCES, 102400, 102400, 100, NULL);
} else
#endif /* SIO_USE_COMPORT */
{
fileHandle = CreateFileA(fileName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
}
if (fileHandle != INVALID_HANDLE_VALUE) {
sio_abort = 0;
#if !SIO_USE_COMPORT
if (devnum & 1) {
DWORD mode = PIPE_NOWAIT;
if (!SetNamedPipeHandleState(fileHandle, &mode, NULL, NULL)) {
LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu): SetNamedPipeHandleState failed. GetLastError() returns %d\n",
(DWORD)devnum, GetLastError()));
}
} else
#endif /* !SIO_USE_COMPORT */
{
FlushFileBuffers(fileHandle);
}
#if SIO_USE_COMPORT
if(!sio_setup(fileHandle)) {
CloseHandle(fileHandle);
LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu): sio_setup failed. GetLastError() returns %lu\n",
(DWORD)devnum, GetLastError()));
return NULL;
}
#endif /* SIO_USE_COMPORT */
LWIP_DEBUGF(SIO_DEBUG, ("sio_open: file \"%s\" successfully opened.\n", fileName));
printf("sio_open: file \"%s\" (%d) successfully opened: 0x%08x\n", fileName, devnum, LWIP_PTR_NUMERIC_CAST(unsigned int, fileHandle));
return (sio_fd_t)(fileHandle);
}
LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu) failed. GetLastError() returns %lu\n",
(DWORD)devnum, GetLastError()));
printf("sio_open(%lu) failed. GetLastError() returns %lu\n",
(DWORD)devnum, GetLastError());
return NULL;
}
/**
* Sends a single character to the serial device.
*
* @param c character to send
* @param fd serial device handle
*
* @note This function will block until the character can be sent.
*/
void sio_send(u8_t c, sio_fd_t fd)
{
DWORD dwNbBytesWritten = 0;
LWIP_DEBUGF(SIO_DEBUG, ("sio_send(%lu)\n", (DWORD)c));
while ((!WriteFile((HANDLE)(fd), &c, 1, &dwNbBytesWritten, NULL)) || (dwNbBytesWritten < 1)) {
}
}
/**
* Receives a single character from the serial device.
*
* @param fd serial device handle
*
* @note This function will block until a character is received.
*/
u8_t sio_recv(sio_fd_t fd)
{
DWORD dwNbBytesReadden = 0;
u8_t byte = 0;
LWIP_DEBUGF(SIO_DEBUG, ("sio_recv()\n"));
while ((sio_abort == 0) && ((!ReadFile((HANDLE)(fd), &byte, 1, &dwNbBytesReadden, NULL)) || (dwNbBytesReadden < 1)));
LWIP_DEBUGF(SIO_DEBUG, ("sio_recv()=%lu\n", (DWORD)byte));
return byte;
}
/**
* Reads from the serial device.
*
* @param fd serial device handle
* @param data pointer to data buffer for receiving
* @param len maximum length (in bytes) of data to receive
* @return number of bytes actually received - may be 0 if aborted by sio_read_abort
*
* @note This function will block until data can be received. The blocking
* can be cancelled by calling sio_read_abort().
*/
u32_t sio_read(sio_fd_t fd, u8_t* data, u32_t len)
{
BOOL ret;
DWORD dwNbBytesReadden = 0;
LWIP_DEBUGF(SIO_DEBUG, ("sio_read()...\n"));
ret = ReadFile((HANDLE)(fd), data, len, &dwNbBytesReadden, NULL);
LWIP_DEBUGF(SIO_DEBUG, ("sio_read()=%lu bytes -> %d\n", dwNbBytesReadden, ret));
LWIP_UNUSED_ARG(ret);
return dwNbBytesReadden;
}
/**
* Tries to read from the serial device. Same as sio_read but returns
* immediately if no data is available and never blocks.
*
* @param fd serial device handle
* @param data pointer to data buffer for receiving
* @param len maximum length (in bytes) of data to receive
* @return number of bytes actually received
*/
u32_t sio_tryread(sio_fd_t fd, u8_t* data, u32_t len)
{
/* @todo: implement non-blocking read */
BOOL ret;
DWORD dwNbBytesReadden = 0;
LWIP_DEBUGF(SIO_DEBUG, ("sio_read()...\n"));
ret = ReadFile((HANDLE)(fd), data, len, &dwNbBytesReadden, NULL);
LWIP_DEBUGF(SIO_DEBUG, ("sio_read()=%lu bytes -> %d\n", dwNbBytesReadden, ret));
LWIP_UNUSED_ARG(ret);
return dwNbBytesReadden;
}
/**
* Writes to the serial device.
*
* @param fd serial device handle
* @param data pointer to data to send
* @param len length (in bytes) of data to send
* @return number of bytes actually sent
*
* @note This function will block until all data can be sent.
*/
u32_t sio_write(sio_fd_t fd, u8_t* data, u32_t len)
{
BOOL ret;
DWORD dwNbBytesWritten = 0;
LWIP_DEBUGF(SIO_DEBUG, ("sio_write()...\n"));
ret = WriteFile((HANDLE)(fd), data, len, &dwNbBytesWritten, NULL);
LWIP_DEBUGF(SIO_DEBUG, ("sio_write()=%lu bytes -> %d\n", dwNbBytesWritten, ret));
LWIP_UNUSED_ARG(ret);
return dwNbBytesWritten;
}
/**
* Aborts a blocking sio_read() call.
* @todo: This currently ignores fd and aborts all reads
*
* @param fd serial device handle
*/
void sio_read_abort(sio_fd_t fd)
{
LWIP_UNUSED_ARG(fd);
LWIP_DEBUGF(SIO_DEBUG, ("sio_read_abort() !!!!!...\n"));
sio_abort = 1;
return;
}

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/*
* 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>
* Simon Goldschmidt
*
*/
#include <stdlib.h>
#include <stdio.h> /* sprintf() for task names */
#ifdef _MSC_VER
#pragma warning (push, 3)
#endif
#include <windows.h>
#ifdef _MSC_VER
#pragma warning (pop)
#endif
#include <time.h>
#include <lwip/opt.h>
#include <lwip/arch.h>
#include <lwip/stats.h>
#include <lwip/debug.h>
#include <lwip/sys.h>
/* These functions are used from NO_SYS also, for precise timer triggering */
LARGE_INTEGER freq, sys_start_time;
#define SYS_INITIALIZED() (freq.QuadPart != 0)
DWORD netconn_sem_tls_index;
HCRYPTPROV hcrypt;
u32_t sys_win_rand(void)
{
u32_t ret;
if (CryptGenRandom(hcrypt, sizeof(ret), (BYTE*)&ret)) {
return ret;
}
LWIP_ASSERT("CryptGenRandom failed", 0);
return 0;
}
static void sys_win_rand_init(void)
{
if(!CryptAcquireContext(&hcrypt, NULL, NULL, PROV_RSA_FULL, 0)) {
DWORD err = GetLastError();
LWIP_PLATFORM_DIAG(("CryptAcquireContext failed with error %d, trying to create NEWKEYSET", (int)err));
if(!CryptAcquireContext(&hcrypt, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)) {
err = GetLastError();
char errbuf[128];
snprintf(errbuf, sizeof(errbuf), "CryptAcquireContext failed with error %d", (int)err);
LWIP_UNUSED_ARG(err);
LWIP_ASSERT(errbuf, 0);
}
}
}
static void sys_init_timing(void)
{
QueryPerformanceFrequency(&freq);
QueryPerformanceCounter(&sys_start_time);
}
static LONGLONG sys_get_ms_longlong(void)
{
LONGLONG ret;
LARGE_INTEGER now;
#if NO_SYS
if (!SYS_INITIALIZED()) {
sys_init();
LWIP_ASSERT("initialization failed", SYS_INITIALIZED());
}
#endif /* NO_SYS */
QueryPerformanceCounter(&now);
ret = now.QuadPart-sys_start_time.QuadPart;
return (u32_t)(((ret)*1000)/freq.QuadPart);
}
u32_t sys_jiffies(void)
{
return (u32_t)sys_get_ms_longlong();
}
u32_t sys_now(void)
{
return (u32_t)sys_get_ms_longlong();
}
CRITICAL_SECTION critSec;
static void InitSysArchProtect(void)
{
InitializeCriticalSection(&critSec);
}
sys_prot_t sys_arch_protect(void)
{
#if NO_SYS
if (!SYS_INITIALIZED()) {
sys_init();
LWIP_ASSERT("initialization failed", SYS_INITIALIZED());
}
#endif
EnterCriticalSection(&critSec);
return 0;
}
void sys_arch_unprotect(sys_prot_t pval)
{
LWIP_UNUSED_ARG(pval);
LeaveCriticalSection(&critSec);
}
static void msvc_sys_init(void)
{
sys_win_rand_init();
sys_init_timing();
InitSysArchProtect();
netconn_sem_tls_index = TlsAlloc();
LWIP_ASSERT("TlsAlloc failed", netconn_sem_tls_index != TLS_OUT_OF_INDEXES);
}
void sys_init(void)
{
msvc_sys_init();
}
#if !NO_SYS
struct threadlist {
lwip_thread_fn function;
void *arg;
DWORD id;
struct threadlist *next;
};
struct threadlist *lwip_win32_threads = NULL;
err_t sys_sem_new(sys_sem_t *sem, u8_t count)
{
HANDLE new_sem = NULL;
LWIP_ASSERT("sem != NULL", sem != NULL);
new_sem = CreateSemaphore(0, count, 100000, 0);
LWIP_ASSERT("Error creating semaphore", new_sem != NULL);
if(new_sem != NULL) {
SYS_STATS_INC_USED(sem);
#if LWIP_STATS && SYS_STATS
LWIP_ASSERT("sys_sem_new() counter overflow", lwip_stats.sys.sem.used != 0 );
#endif /* LWIP_STATS && SYS_STATS*/
sem->sem = new_sem;
return ERR_OK;
}
/* failed to allocate memory... */
SYS_STATS_INC(sem.err);
sem->sem = NULL;
return ERR_MEM;
}
void sys_sem_free(sys_sem_t *sem)
{
/* parameter check */
LWIP_ASSERT("sem != NULL", sem != NULL);
LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL);
LWIP_ASSERT("sem->sem != INVALID_HANDLE_VALUE", sem->sem != INVALID_HANDLE_VALUE);
CloseHandle(sem->sem);
SYS_STATS_DEC(sem.used);
#if LWIP_STATS && SYS_STATS
LWIP_ASSERT("sys_sem_free() closed more than created", lwip_stats.sys.sem.used != (u16_t)-1);
#endif /* LWIP_STATS && SYS_STATS */
sem->sem = NULL;
}
u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout)
{
DWORD ret;
LONGLONG starttime, endtime;
LWIP_ASSERT("sem != NULL", sem != NULL);
LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL);
LWIP_ASSERT("sem->sem != INVALID_HANDLE_VALUE", sem->sem != INVALID_HANDLE_VALUE);
if(!timeout)
{
/* wait infinite */
starttime = sys_get_ms_longlong();
ret = WaitForSingleObject(sem->sem, INFINITE);
LWIP_ASSERT("Error waiting for semaphore", ret == WAIT_OBJECT_0);
endtime = sys_get_ms_longlong();
/* return the time we waited for the sem */
return (u32_t)(endtime - starttime);
}
else
{
starttime = sys_get_ms_longlong();
ret = WaitForSingleObject(sem->sem, timeout);
LWIP_ASSERT("Error waiting for semaphore", (ret == WAIT_OBJECT_0) || (ret == WAIT_TIMEOUT));
if(ret == WAIT_OBJECT_0)
{
endtime = sys_get_ms_longlong();
/* return the time we waited for the sem */
return (u32_t)(endtime - starttime);
}
else
{
/* timeout */
return SYS_ARCH_TIMEOUT;
}
}
}
void sys_sem_signal(sys_sem_t *sem)
{
BOOL ret;
LWIP_ASSERT("sem != NULL", sem != NULL);
LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL);
LWIP_ASSERT("sem->sem != INVALID_HANDLE_VALUE", sem->sem != INVALID_HANDLE_VALUE);
ret = ReleaseSemaphore(sem->sem, 1, NULL);
LWIP_ASSERT("Error releasing semaphore", ret != 0);
LWIP_UNUSED_ARG(ret);
}
err_t sys_mutex_new(sys_mutex_t *mutex)
{
HANDLE new_mut = NULL;
LWIP_ASSERT("mutex != NULL", mutex != NULL);
new_mut = CreateMutex(NULL, FALSE, NULL);
LWIP_ASSERT("Error creating mutex", new_mut != NULL);
if(new_mut != NULL) {
SYS_STATS_INC_USED(mutex);
#if LWIP_STATS && SYS_STATS
LWIP_ASSERT("sys_mutex_new() counter overflow", lwip_stats.sys.mutex.used != 0 );
#endif /* LWIP_STATS && SYS_STATS*/
mutex->mut = new_mut;
return ERR_OK;
}
/* failed to allocate memory... */
SYS_STATS_INC(mutex.err);
mutex->mut = NULL;
return ERR_MEM;
}
void sys_mutex_free(sys_mutex_t *mutex)
{
/* parameter check */
LWIP_ASSERT("mutex != NULL", mutex != NULL);
LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL);
LWIP_ASSERT("mutex->mut != INVALID_HANDLE_VALUE", mutex->mut != INVALID_HANDLE_VALUE);
CloseHandle(mutex->mut);
SYS_STATS_DEC(mutex.used);
#if LWIP_STATS && SYS_STATS
LWIP_ASSERT("sys_mutex_free() closed more than created", lwip_stats.sys.mutex.used != (u16_t)-1);
#endif /* LWIP_STATS && SYS_STATS */
mutex->mut = NULL;
}
void sys_mutex_lock(sys_mutex_t *mutex)
{
DWORD ret;
LWIP_ASSERT("mutex != NULL", mutex != NULL);
LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL);
LWIP_ASSERT("mutex->mut != INVALID_HANDLE_VALUE", mutex->mut != INVALID_HANDLE_VALUE);
/* wait infinite */
ret = WaitForSingleObject(mutex->mut, INFINITE);
LWIP_ASSERT("Error waiting for mutex", ret == WAIT_OBJECT_0);
LWIP_UNUSED_ARG(ret);
}
void sys_mutex_unlock(sys_mutex_t *mutex)
{
LWIP_ASSERT("mutex != NULL", mutex != NULL);
LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL);
LWIP_ASSERT("mutex->mut != INVALID_HANDLE_VALUE", mutex->mut != INVALID_HANDLE_VALUE);
/* wait infinite */
if(!ReleaseMutex(mutex->mut))
{
LWIP_ASSERT("Error releasing mutex", 0);
}
}
#ifdef _MSC_VER
const DWORD MS_VC_EXCEPTION=0x406D1388;
#pragma pack(push,8)
typedef struct tagTHREADNAME_INFO
{
DWORD dwType; /* Must be 0x1000. */
LPCSTR szName; /* Pointer to name (in user addr space). */
DWORD dwThreadID; /* Thread ID (-1=caller thread). */
DWORD dwFlags; /* Reserved for future use, must be zero. */
} THREADNAME_INFO;
#pragma pack(pop)
static void SetThreadName(DWORD dwThreadID, const char* threadName)
{
THREADNAME_INFO info;
info.dwType = 0x1000;
info.szName = threadName;
info.dwThreadID = dwThreadID;
info.dwFlags = 0;
__try
{
RaiseException(MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
}
#else /* _MSC_VER */
static void SetThreadName(DWORD dwThreadID, const char* threadName)
{
LWIP_UNUSED_ARG(dwThreadID);
LWIP_UNUSED_ARG(threadName);
}
#endif /* _MSC_VER */
static void sys_thread_function(void* arg)
{
struct threadlist* t = (struct threadlist*)arg;
#if LWIP_NETCONN_SEM_PER_THREAD
sys_arch_netconn_sem_alloc();
#endif
t->function(t->arg);
#if LWIP_NETCONN_SEM_PER_THREAD
sys_arch_netconn_sem_free();
#endif
}
sys_thread_t sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksize, int prio)
{
struct threadlist *new_thread;
HANDLE h;
SYS_ARCH_DECL_PROTECT(lev);
LWIP_UNUSED_ARG(name);
LWIP_UNUSED_ARG(stacksize);
LWIP_UNUSED_ARG(prio);
new_thread = (struct threadlist*)malloc(sizeof(struct threadlist));
LWIP_ASSERT("new_thread != NULL", new_thread != NULL);
if(new_thread != NULL) {
new_thread->function = function;
new_thread->arg = arg;
SYS_ARCH_PROTECT(lev);
new_thread->next = lwip_win32_threads;
lwip_win32_threads = new_thread;
h = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)sys_thread_function, new_thread, 0, &(new_thread->id));
LWIP_ASSERT("h != 0", h != 0);
LWIP_ASSERT("h != -1", h != INVALID_HANDLE_VALUE);
LWIP_UNUSED_ARG(h);
SetThreadName(new_thread->id, name);
SYS_ARCH_UNPROTECT(lev);
return new_thread->id;
}
return 0;
}
err_t sys_mbox_new(sys_mbox_t *mbox, int size)
{
LWIP_ASSERT("mbox != NULL", mbox != NULL);
LWIP_UNUSED_ARG(size);
mbox->sem = CreateSemaphore(0, 0, MAX_QUEUE_ENTRIES, 0);
LWIP_ASSERT("Error creating semaphore", mbox->sem != NULL);
if(mbox->sem == NULL) {
SYS_STATS_INC(mbox.err);
return ERR_MEM;
}
memset(&mbox->q_mem, 0, sizeof(u32_t)*MAX_QUEUE_ENTRIES);
mbox->head = 0;
mbox->tail = 0;
SYS_STATS_INC_USED(mbox);
#if LWIP_STATS && SYS_STATS
LWIP_ASSERT("sys_mbox_new() counter overflow", lwip_stats.sys.mbox.used != 0 );
#endif /* LWIP_STATS && SYS_STATS */
return ERR_OK;
}
void sys_mbox_free(sys_mbox_t *mbox)
{
/* parameter check */
LWIP_ASSERT("mbox != NULL", mbox != NULL);
LWIP_ASSERT("mbox->sem != NULL", mbox->sem != NULL);
LWIP_ASSERT("mbox->sem != INVALID_HANDLE_VALUE", mbox->sem != INVALID_HANDLE_VALUE);
CloseHandle(mbox->sem);
SYS_STATS_DEC(mbox.used);
#if LWIP_STATS && SYS_STATS
LWIP_ASSERT( "sys_mbox_free() ", lwip_stats.sys.mbox.used!= (u16_t)-1 );
#endif /* LWIP_STATS && SYS_STATS */
mbox->sem = NULL;
}
void sys_mbox_post(sys_mbox_t *q, void *msg)
{
BOOL ret;
SYS_ARCH_DECL_PROTECT(lev);
/* parameter check */
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != NULL", q->sem != NULL);
LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE);
SYS_ARCH_PROTECT(lev);
q->q_mem[q->head] = msg;
(q->head)++;
if (q->head >= MAX_QUEUE_ENTRIES) {
q->head = 0;
}
LWIP_ASSERT("mbox is full!", q->head != q->tail);
ret = ReleaseSemaphore(q->sem, 1, 0);
LWIP_ASSERT("Error releasing sem", ret != 0);
LWIP_UNUSED_ARG(ret);
SYS_ARCH_UNPROTECT(lev);
}
err_t sys_mbox_trypost(sys_mbox_t *q, void *msg)
{
u32_t new_head;
BOOL ret;
SYS_ARCH_DECL_PROTECT(lev);
/* parameter check */
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != NULL", q->sem != NULL);
LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE);
SYS_ARCH_PROTECT(lev);
new_head = q->head + 1;
if (new_head >= MAX_QUEUE_ENTRIES) {
new_head = 0;
}
if (new_head == q->tail) {
SYS_ARCH_UNPROTECT(lev);
return ERR_MEM;
}
q->q_mem[q->head] = msg;
q->head = new_head;
LWIP_ASSERT("mbox is full!", q->head != q->tail);
ret = ReleaseSemaphore(q->sem, 1, 0);
LWIP_ASSERT("Error releasing sem", ret != 0);
LWIP_UNUSED_ARG(ret);
SYS_ARCH_UNPROTECT(lev);
return ERR_OK;
}
u32_t sys_arch_mbox_fetch(sys_mbox_t *q, void **msg, u32_t timeout)
{
DWORD ret;
LONGLONG starttime, endtime;
SYS_ARCH_DECL_PROTECT(lev);
/* parameter check */
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != NULL", q->sem != NULL);
LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE);
if (timeout == 0) {
timeout = INFINITE;
}
starttime = sys_get_ms_longlong();
if ((ret = WaitForSingleObject(q->sem, timeout)) == WAIT_OBJECT_0) {
SYS_ARCH_PROTECT(lev);
if(msg != NULL) {
*msg = q->q_mem[q->tail];
}
(q->tail)++;
if (q->tail >= MAX_QUEUE_ENTRIES) {
q->tail = 0;
}
SYS_ARCH_UNPROTECT(lev);
endtime = sys_get_ms_longlong();
return (u32_t)(endtime - starttime);
}
else
{
LWIP_ASSERT("Error waiting for sem", ret == WAIT_TIMEOUT);
if(msg != NULL) {
*msg = NULL;
}
return SYS_ARCH_TIMEOUT;
}
}
u32_t sys_arch_mbox_tryfetch(sys_mbox_t *q, void **msg)
{
DWORD ret;
SYS_ARCH_DECL_PROTECT(lev);
/* parameter check */
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != NULL", q->sem != NULL);
LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE);
if ((ret = WaitForSingleObject(q->sem, 0)) == WAIT_OBJECT_0) {
SYS_ARCH_PROTECT(lev);
if(msg != NULL) {
*msg = q->q_mem[q->tail];
}
(q->tail)++;
if (q->tail >= MAX_QUEUE_ENTRIES) {
q->tail = 0;
}
SYS_ARCH_UNPROTECT(lev);
return 0;
}
else
{
LWIP_ASSERT("Error waiting for sem", ret == WAIT_TIMEOUT);
if(msg != NULL) {
*msg = NULL;
}
return SYS_ARCH_TIMEOUT;
}
}
#if LWIP_NETCONN_SEM_PER_THREAD
sys_sem_t* sys_arch_netconn_sem_get(void)
{
LPVOID tls_data = TlsGetValue(netconn_sem_tls_index);
return (sys_sem_t*)tls_data;
}
void sys_arch_netconn_sem_alloc(void)
{
sys_sem_t *sem;
err_t err;
BOOL done;
sem = (sys_sem_t*)malloc(sizeof(sys_sem_t));
LWIP_ASSERT("failed to allocate memory for TLS semaphore", sem != NULL);
err = sys_sem_new(sem, 0);
LWIP_ASSERT("failed to initialise TLS semaphore", err == ERR_OK);
done = TlsSetValue(netconn_sem_tls_index, sem);
LWIP_UNUSED_ARG(done);
LWIP_ASSERT("failed to initialise TLS semaphore storage", done == TRUE);
}
void sys_arch_netconn_sem_free(void)
{
LPVOID tls_data = TlsGetValue(netconn_sem_tls_index);
if (tls_data != NULL) {
BOOL done;
free(tls_data);
done = TlsSetValue(netconn_sem_tls_index, NULL);
LWIP_UNUSED_ARG(done);
LWIP_ASSERT("failed to de-init TLS semaphore storage", done == TRUE);
}
}
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
#endif /* !NO_SYS */
/* get keyboard state to terminate the debug app on any kbhit event using win32 API */
int lwip_win32_keypressed(void)
{
INPUT_RECORD rec;
DWORD num = 0;
HANDLE h = GetStdHandle(STD_INPUT_HANDLE);
BOOL ret = PeekConsoleInput(h, &rec, 1, &num);
if (ret) {
if(rec.EventType == KEY_EVENT) {
if(rec.Event.KeyEvent.bKeyDown) {
return 1;
}
}
ReadConsoleInput(h, &rec, 1, &num);
}
return 0;
}

788
ext/lwip-contrib/ports/win32/test.c Normal file
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@@ -0,0 +1,788 @@
/*
* Copyright (c) 2001,2002 Florian Schulze.
* 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. Neither the name of the authors nor the names of the contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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 AUTHORS OR CONTRIBUTORS 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.
*
* test.c - This file is part of lwIP test
*
*/
/* C runtime includes */
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include <string.h>
/* lwIP core includes */
#include "lwip/opt.h"
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#include "lwip/debug.h"
#include "lwip/stats.h"
#include "lwip/init.h"
#include "lwip/tcpip.h"
#include "lwip/netif.h"
#include "lwip/api.h"
#include "lwip/tcp.h"
#include "lwip/udp.h"
#include "lwip/dns.h"
#include "lwip/dhcp.h"
#include "lwip/autoip.h"
/* lwIP netif includes */
#include "lwip/etharp.h"
#include "netif/ethernet.h"
/* applications includes */
#include "lwip/apps/lwiperf.h"
#include "lwip/apps/netbiosns.h"
#include "lwip/apps/sntp.h"
#include "lwip/apps/httpd.h"
#include "lwip/apps/mdns.h"
#include "lwip/apps/snmp.h"
#include "apps/httpserver/httpserver-netconn.h"
#include "apps/netio/netio.h"
#include "apps/ping/ping.h"
#include "apps/rtp/rtp.h"
#include "apps/chargen/chargen.h"
#include "apps/shell/shell.h"
#include "apps/tcpecho/tcpecho.h"
#include "apps/udpecho/udpecho.h"
#include "apps/tcpecho_raw/tcpecho_raw.h"
#include "apps/socket_examples/socket_examples.h"
#include "apps/snmp_v3/snmpv3_dummy.h"
#if NO_SYS
/* ... then we need information about the timer intervals: */
#include "lwip/ip4_frag.h"
#include "lwip/igmp.h"
#endif /* NO_SYS */
#include "netif/ppp/ppp_opts.h"
#if PPP_SUPPORT
/* PPP includes */
#include "lwip/sio.h"
#include "netif/ppp/pppapi.h"
#include "netif/ppp/pppos.h"
#include "netif/ppp/pppoe.h"
#if !NO_SYS && !LWIP_PPP_API
#error With NO_SYS==0, LWIP_PPP_API==1 is required.
#endif
#endif /* PPP_SUPPORT */
/* include the port-dependent configuration */
#include "lwipcfg_msvc.h"
/** Define this to 1 to enable a PCAP interface as default interface. */
#ifndef USE_PCAPIF
#define USE_PCAPIF 1
#endif
/** Define this to 1 to enable a PPP interface. */
#ifndef USE_PPP
#define USE_PPP 0
#endif
/** Define this to 1 or 2 to support 1 or 2 SLIP interfaces. */
#ifndef USE_SLIPIF
#define USE_SLIPIF 0
#endif
/** Use an ethernet adapter? Default to enabled if PCAPIF or PPPoE are used. */
#ifndef USE_ETHERNET
#define USE_ETHERNET (USE_PCAPIF || PPPOE_SUPPORT)
#endif
/** Use an ethernet adapter for TCP/IP? By default only if PCAPIF is used. */
#ifndef USE_ETHERNET_TCPIP
#define USE_ETHERNET_TCPIP (USE_PCAPIF)
#endif
#if USE_ETHERNET
#include "pcapif.h"
#endif /* USE_ETHERNET */
#if USE_SLIPIF
#include <netif/slipif.h>
#endif /* USE_SLIPIF */
#ifndef USE_DHCP
#define USE_DHCP LWIP_DHCP
#endif
#ifndef USE_AUTOIP
#define USE_AUTOIP LWIP_AUTOIP
#endif
/* globales variables for netifs */
#if USE_ETHERNET
/* THE ethernet interface */
struct netif netif;
#if LWIP_DHCP
/* dhcp struct for the ethernet netif */
struct dhcp netif_dhcp;
#endif /* LWIP_DHCP */
#if LWIP_AUTOIP
/* autoip struct for the ethernet netif */
struct autoip netif_autoip;
#endif /* LWIP_AUTOIP */
#endif /* USE_ETHERNET */
#if USE_PPP
/* THE PPP PCB */
ppp_pcb *ppp;
/* THE PPP interface */
struct netif ppp_netif;
/* THE PPP descriptor */
u8_t sio_idx = 0;
sio_fd_t ppp_sio;
#endif /* USE_PPP */
#if USE_SLIPIF
struct netif slipif1;
#if USE_SLIPIF > 1
struct netif slipif2;
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if USE_PPP
static void
pppLinkStatusCallback(ppp_pcb *pcb, int errCode, void *ctx)
{
struct netif *pppif = ppp_netif(pcb);
LWIP_UNUSED_ARG(ctx);
switch(errCode) {
case PPPERR_NONE: { /* No error. */
printf("pppLinkStatusCallback: PPPERR_NONE\n");
#if LWIP_IPV4
printf(" our_ipaddr = %s\n", ip4addr_ntoa(netif_ip4_addr(pppif)));
printf(" his_ipaddr = %s\n", ip4addr_ntoa(netif_ip4_gw(pppif)));
printf(" netmask = %s\n", ip4addr_ntoa(netif_ip4_netmask(pppif)));
#endif /* LWIP_IPV4 */
#if LWIP_DNS
printf(" dns1 = %s\n", ipaddr_ntoa(dns_getserver(0)));
printf(" dns2 = %s\n", ipaddr_ntoa(dns_getserver(1)));
#endif /* LWIP_DNS */
#if PPP_IPV6_SUPPORT
printf(" our6_ipaddr = %s\n", ip6addr_ntoa(netif_ip6_addr(pppif, 0)));
#endif /* PPP_IPV6_SUPPORT */
break;
}
case PPPERR_PARAM: { /* Invalid parameter. */
printf("pppLinkStatusCallback: PPPERR_PARAM\n");
break;
}
case PPPERR_OPEN: { /* Unable to open PPP session. */
printf("pppLinkStatusCallback: PPPERR_OPEN\n");
break;
}
case PPPERR_DEVICE: { /* Invalid I/O device for PPP. */
printf("pppLinkStatusCallback: PPPERR_DEVICE\n");
break;
}
case PPPERR_ALLOC: { /* Unable to allocate resources. */
printf("pppLinkStatusCallback: PPPERR_ALLOC\n");
break;
}
case PPPERR_USER: { /* User interrupt. */
printf("pppLinkStatusCallback: PPPERR_USER\n");
break;
}
case PPPERR_CONNECT: { /* Connection lost. */
printf("pppLinkStatusCallback: PPPERR_CONNECT\n");
break;
}
case PPPERR_AUTHFAIL: { /* Failed authentication challenge. */
printf("pppLinkStatusCallback: PPPERR_AUTHFAIL\n");
break;
}
case PPPERR_PROTOCOL: { /* Failed to meet protocol. */
printf("pppLinkStatusCallback: PPPERR_PROTOCOL\n");
break;
}
case PPPERR_PEERDEAD: { /* Connection timeout */
printf("pppLinkStatusCallback: PPPERR_PEERDEAD\n");
break;
}
case PPPERR_IDLETIMEOUT: { /* Idle Timeout */
printf("pppLinkStatusCallback: PPPERR_IDLETIMEOUT\n");
break;
}
case PPPERR_CONNECTTIME: { /* Max connect time reached */
printf("pppLinkStatusCallback: PPPERR_CONNECTTIME\n");
break;
}
case PPPERR_LOOPBACK: { /* Loopback detected */
printf("pppLinkStatusCallback: PPPERR_LOOPBACK\n");
break;
}
default: {
printf("pppLinkStatusCallback: unknown errCode %d\n", errCode);
break;
}
}
}
#if PPPOS_SUPPORT
static u32_t
ppp_output_cb(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx)
{
LWIP_UNUSED_ARG(pcb);
LWIP_UNUSED_ARG(ctx);
return sio_write(ppp_sio, data, len);
}
#endif /* PPPOS_SUPPORT */
#endif /* USE_PPP */
#if LWIP_NETIF_STATUS_CALLBACK
static void
status_callback(struct netif *state_netif)
{
if (netif_is_up(state_netif)) {
#if LWIP_IPV4
printf("status_callback==UP, local interface IP is %s\n", ip4addr_ntoa(netif_ip4_addr(state_netif)));
#else
printf("status_callback==UP\n");
#endif
#if LWIP_MDNS_RESPONDER
mdns_resp_netif_settings_changed(state_netif);
#endif
} else {
printf("status_callback==DOWN\n");
}
}
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
static void
link_callback(struct netif *state_netif)
{
if (netif_is_link_up(state_netif)) {
printf("link_callback==UP\n");
} else {
printf("link_callback==DOWN\n");
}
}
#endif /* LWIP_NETIF_LINK_CALLBACK */
/* This function initializes all network interfaces */
static void
msvc_netif_init(void)
{
#if LWIP_IPV4 && USE_ETHERNET
ip4_addr_t ipaddr, netmask, gw;
#endif /* LWIP_IPV4 && USE_ETHERNET */
#if USE_SLIPIF
u8_t num_slip1 = 0;
#if LWIP_IPV4
ip4_addr_t ipaddr_slip1, netmask_slip1, gw_slip1;
#endif
#if USE_SLIPIF > 1
u8_t num_slip2 = 1;
#if LWIP_IPV4
ip4_addr_t ipaddr_slip2, netmask_slip2, gw_slip2;
#endif
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if USE_DHCP || USE_AUTOIP
err_t err;
#endif
#if USE_PPP
const char *username = NULL, *password = NULL;
#ifdef PPP_USERNAME
username = PPP_USERNAME;
#endif
#ifdef PPP_PASSWORD
password = PPP_PASSWORD;
#endif
printf("ppp_connect: COM%d\n", (int)sio_idx);
#if PPPOS_SUPPORT
ppp_sio = sio_open(sio_idx);
if (ppp_sio == NULL) {
printf("sio_open error\n");
} else {
ppp = pppos_create(&ppp_netif, ppp_output_cb, pppLinkStatusCallback, NULL);
if (ppp == NULL) {
printf("pppos_create error\n");
} else {
ppp_set_auth(ppp, PPPAUTHTYPE_ANY, username, password);
ppp_connect(ppp, 0);
}
}
#endif /* PPPOS_SUPPORT */
#endif /* USE_PPP */
#if USE_ETHERNET
#if LWIP_IPV4
#define NETIF_ADDRS &ipaddr, &netmask, &gw,
ip4_addr_set_zero(&gw);
ip4_addr_set_zero(&ipaddr);
ip4_addr_set_zero(&netmask);
#if USE_ETHERNET_TCPIP
#if USE_DHCP
printf("Starting lwIP, local interface IP is dhcp-enabled\n");
#elif USE_AUTOIP
printf("Starting lwIP, local interface IP is autoip-enabled\n");
#else /* USE_DHCP */
LWIP_PORT_INIT_GW(&gw);
LWIP_PORT_INIT_IPADDR(&ipaddr);
LWIP_PORT_INIT_NETMASK(&netmask);
printf("Starting lwIP, local interface IP is %s\n", ip4addr_ntoa(&ipaddr));
#endif /* USE_DHCP */
#endif /* USE_ETHERNET_TCPIP */
#else /* LWIP_IPV4 */
#define NETIF_ADDRS
printf("Starting lwIP, IPv4 disable\n");
#endif /* LWIP_IPV4 */
#if NO_SYS
netif_set_default(netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, netif_input));
#else /* NO_SYS */
netif_set_default(netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, tcpip_input));
#endif /* NO_SYS */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif, 1);
printf("ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&netif, 0));
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&netif, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&netif, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if USE_ETHERNET_TCPIP
#if LWIP_AUTOIP
autoip_set_struct(&netif, &netif_autoip);
#endif /* LWIP_AUTOIP */
#if LWIP_DHCP
dhcp_set_struct(&netif, &netif_dhcp);
#endif /* LWIP_DHCP */
netif_set_up(&netif);
#if USE_DHCP
err = dhcp_start(&netif);
LWIP_ASSERT("dhcp_start failed", err == ERR_OK);
#elif USE_AUTOIP
err = autoip_start(&netif);
LWIP_ASSERT("autoip_start failed", err == ERR_OK);
#endif /* USE_DHCP */
#else /* USE_ETHERNET_TCPIP */
/* Use ethernet for PPPoE only */
netif.flags &= ~(NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP); /* no ARP */
netif.flags |= NETIF_FLAG_ETHERNET; /* but pure ethernet */
#endif /* USE_ETHERNET_TCPIP */
#if USE_PPP && PPPOE_SUPPORT
/* start PPPoE after ethernet netif is added! */
ppp = pppoe_create(&ppp_netif, &netif, NULL, NULL, pppLinkStatusCallback, NULL);
if (ppp == NULL) {
printf("pppos_create error\n");
} else {
ppp_set_auth(ppp, PPPAUTHTYPE_ANY, username, password);
ppp_connect(ppp, 0);
}
#endif /* USE_PPP && PPPOE_SUPPORT */
#endif /* USE_ETHERNET */
#if USE_SLIPIF
#if LWIP_IPV4
#define SLIP1_ADDRS &ipaddr_slip1, &netmask_slip1, &gw_slip1,
LWIP_PORT_INIT_SLIP1_IPADDR(&ipaddr_slip1);
LWIP_PORT_INIT_SLIP1_GW(&gw_slip1);
LWIP_PORT_INIT_SLIP1_NETMASK(&netmask_slip1);
printf("Starting lwIP slipif, local interface IP is %s\n", ip4addr_ntoa(&ipaddr_slip1));
#else
#define SLIP1_ADDRS
printf("Starting lwIP slipif\n");
#endif
#if defined(SIO_USE_COMPORT) && SIO_USE_COMPORT
num_slip1++; /* COM ports cannot be 0-based */
#endif
netif_add(&slipif1, SLIP1_ADDRS &num_slip1, slipif_init, ip_input);
#if !USE_ETHERNET
netif_set_default(&slipif1);
#endif /* !USE_ETHERNET */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif1, 1);
printf("SLIP ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&slipif1, 0));
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif1, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&slipif1, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
netif_set_up(&slipif1);
#if USE_SLIPIF > 1
#if LWIP_IPV4
#define SLIP2_ADDRS &ipaddr_slip2, &netmask_slip2, &gw_slip2,
LWIP_PORT_INIT_SLIP2_IPADDR(&ipaddr_slip2);
LWIP_PORT_INIT_SLIP2_GW(&gw_slip2);
LWIP_PORT_INIT_SLIP2_NETMASK(&netmask_slip2);
printf("Starting lwIP SLIP if #2, local interface IP is %s\n", ip4addr_ntoa(&ipaddr_slip2));
#else
#define SLIP2_ADDRS
printf("Starting lwIP SLIP if #2\n");
#endif
#if defined(SIO_USE_COMPORT) && SIO_USE_COMPORT
num_slip2++; /* COM ports cannot be 0-based */
#endif
netif_add(&slipif2, SLIP2_ADDRS &num_slip2, slipif_init, ip_input);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif1, 1);
printf("SLIP2 ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&slipif2, 0));
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif2, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&slipif2, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
netif_set_up(&slipif2);
#endif /* USE_SLIPIF > 1*/
#endif /* USE_SLIPIF */
}
#if LWIP_DNS_APP && LWIP_DNS
static void
dns_found(const char *name, const ip_addr_t *addr, void *arg)
{
LWIP_UNUSED_ARG(arg);
printf("%s: %s\n", name, addr ? ipaddr_ntoa(addr) : "<not found>");
}
static void
dns_dorequest(void *arg)
{
const char* dnsname = "3com.com";
ip_addr_t dnsresp;
LWIP_UNUSED_ARG(arg);
if (dns_gethostbyname(dnsname, &dnsresp, dns_found, 0) == ERR_OK) {
dns_found(dnsname, &dnsresp, 0);
}
}
#endif /* LWIP_DNS_APP && LWIP_DNS */
#if LWIP_LWIPERF_APP
static void
lwiperf_report(void *arg, enum lwiperf_report_type report_type,
const ip_addr_t* local_addr, u16_t local_port, const ip_addr_t* remote_addr, u16_t remote_port,
u32_t bytes_transferred, u32_t ms_duration, u32_t bandwidth_kbitpsec)
{
LWIP_UNUSED_ARG(arg);
LWIP_UNUSED_ARG(local_addr);
LWIP_UNUSED_ARG(local_port);
printf("IPERF report: type=%d, remote: %s:%d, total bytes: %lu, duration in ms: %lu, kbits/s: %lu\n",
(int)report_type, ipaddr_ntoa(remote_addr), (int)remote_port, bytes_transferred, ms_duration, bandwidth_kbitpsec);
}
#endif /* LWIP_LWIPERF_APP */
#if LWIP_MDNS_RESPONDER
static void srv_txt(struct mdns_service *service, void *txt_userdata)
{
err_t res = mdns_resp_add_service_txtitem(service, "path=/", 6);
LWIP_ERROR("mdns add service txt failed\n", (res == ERR_OK), return);
LWIP_UNUSED_ARG(txt_userdata);
}
#endif
/* This function initializes applications */
static void
apps_init(void)
{
#if LWIP_DNS_APP && LWIP_DNS
/* wait until the netif is up (for dhcp, autoip or ppp) */
sys_timeout(5000, dns_dorequest, NULL);
#endif /* LWIP_DNS_APP && LWIP_DNS */
#if LWIP_CHARGEN_APP && LWIP_SOCKET
chargen_init();
#endif /* LWIP_CHARGEN_APP && LWIP_SOCKET */
#if LWIP_PING_APP && LWIP_RAW && LWIP_ICMP
ping_init(&netif.gw);
#endif /* LWIP_PING_APP && LWIP_RAW && LWIP_ICMP */
#if LWIP_NETBIOS_APP && LWIP_UDP
netbiosns_init();
#ifndef NETBIOS_LWIP_NAME
#if LWIP_NETIF_HOSTNAME
netbiosns_set_name(netif_default->hostname);
#else
netbiosns_set_name("NETBIOSLWIPDEV");
#endif
#endif
#endif /* LWIP_NETBIOS_APP && LWIP_UDP */
#if LWIP_HTTPD_APP && LWIP_TCP
#ifdef LWIP_HTTPD_APP_NETCONN
http_server_netconn_init();
#else /* LWIP_HTTPD_APP_NETCONN */
httpd_init();
#endif /* LWIP_HTTPD_APP_NETCONN */
#endif /* LWIP_HTTPD_APP && LWIP_TCP */
#if LWIP_MDNS_RESPONDER
mdns_resp_init();
#if LWIP_NETIF_HOSTNAME
mdns_resp_add_netif(netif_default, netif_default->hostname, 3600);
#else
mdns_resp_add_netif(netif_default, "lwip", 3600);
#endif
mdns_resp_add_service(netif_default, "lwipweb", "_http", DNSSD_PROTO_TCP, HTTPD_SERVER_PORT, 3600, srv_txt, NULL);
#endif
#if LWIP_NETIO_APP && LWIP_TCP
netio_init();
#endif /* LWIP_NETIO_APP && LWIP_TCP */
#if LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP
rtp_init();
#endif /* LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP */
#if LWIP_SNTP_APP
sntp_init();
#endif /* LWIP_SNTP_APP */
#if LWIP_SHELL_APP && LWIP_NETCONN
shell_init();
#endif /* LWIP_SHELL_APP && LWIP_NETCONN */
#if LWIP_TCPECHO_APP
#if LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN)
tcpecho_init();
#else /* LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN) */
tcpecho_raw_init();
#endif
#endif /* LWIP_TCPECHO_APP && LWIP_NETCONN */
#if LWIP_UDPECHO_APP && LWIP_NETCONN
udpecho_init();
#endif /* LWIP_UDPECHO_APP && LWIP_NETCONN */
#if LWIP_LWIPERF_APP
lwiperf_start_tcp_server_default(lwiperf_report, NULL);
#endif
#if LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET
socket_examples_init();
#endif /* LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET */
#if LWIP_SNMP && LWIP_UDP
#if LWIP_SNMP_V3
snmpv3_dummy_init();
#endif
snmp_init();
#endif /* LWIP_SNMP && LWIP_UDP */
#ifdef LWIP_APP_INIT
LWIP_APP_INIT();
#endif
}
/* This function initializes this lwIP test. When NO_SYS=1, this is done in
* the main_loop context (there is no other one), when NO_SYS=0, this is done
* in the tcpip_thread context */
static void
test_init(void * arg)
{ /* remove compiler warning */
#if NO_SYS
LWIP_UNUSED_ARG(arg);
#else /* NO_SYS */
sys_sem_t *init_sem;
LWIP_ASSERT("arg != NULL", arg != NULL);
init_sem = (sys_sem_t*)arg;
#endif /* NO_SYS */
/* init randomizer again (seed per thread) */
srand((unsigned int)time(0));
/* init network interfaces */
msvc_netif_init();
/* init apps */
apps_init();
#if !NO_SYS
sys_sem_signal(init_sem);
#endif /* !NO_SYS */
}
/* This is somewhat different to other ports: we have a main loop here:
* a dedicated task that waits for packets to arrive. This would normally be
* done from interrupt context with embedded hardware, but we don't get an
* interrupt in windows for that :-) */
static void
main_loop(void)
{
#if !NO_SYS
err_t err;
sys_sem_t init_sem;
#endif /* NO_SYS */
#if USE_PPP
#if !USE_ETHERNET
int count;
u8_t rxbuf[1024];
#endif
volatile int callClosePpp = 0;
#endif /* USE_PPP */
/* initialize lwIP stack, network interfaces and applications */
#if NO_SYS
lwip_init();
test_init(NULL);
#else /* NO_SYS */
err = sys_sem_new(&init_sem, 0);
LWIP_ASSERT("failed to create init_sem", err == ERR_OK);
LWIP_UNUSED_ARG(err);
tcpip_init(test_init, &init_sem);
/* we have to wait for initialization to finish before
* calling update_adapter()! */
sys_sem_wait(&init_sem);
sys_sem_free(&init_sem);
#endif /* NO_SYS */
#if (LWIP_SOCKET || LWIP_NETCONN) && LWIP_NETCONN_SEM_PER_THREAD
netconn_thread_init();
#endif
/* MAIN LOOP for driver update (and timers if NO_SYS) */
while (!lwip_win32_keypressed()) {
#if NO_SYS
/* handle timers (already done in tcpip.c when NO_SYS=0) */
sys_check_timeouts();
#endif /* NO_SYS */
#if USE_ETHERNET
#if !PCAPIF_RX_USE_THREAD
/* check for packets and link status*/
pcapif_poll(&netif);
/* When pcapif_poll comes back, there are not packets, so sleep to
prevent 100% CPU load. Don't do this in an embedded system since it
increases latency! */
sys_msleep(1);
#else /* !PCAPIF_RX_USE_THREAD */
sys_msleep(50);
#endif /* !PCAPIF_RX_USE_THREAD */
#else /* USE_ETHERNET */
/* try to read characters from serial line and pass them to PPPoS */
count = sio_read(ppp_sio, (u8_t*)rxbuf, 1024);
if(count > 0) {
pppos_input(ppp, rxbuf, count);
} else {
/* nothing received, give other tasks a chance to run */
sys_msleep(1);
}
#endif /* USE_ETHERNET */
#if USE_SLIPIF
slipif_poll(&slipif1);
#if USE_SLIPIF > 1
slipif_poll(&slipif2);
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if ENABLE_LOOPBACK && !LWIP_NETIF_LOOPBACK_MULTITHREADING
/* check for loopback packets on all netifs */
netif_poll_all();
#endif /* ENABLE_LOOPBACK && !LWIP_NETIF_LOOPBACK_MULTITHREADING */
#if USE_PPP
{
int do_hup = 0;
if(do_hup) {
ppp_close(ppp, 1);
do_hup = 0;
}
}
if(callClosePpp && ppp) {
/* make sure to disconnect PPP before stopping the program... */
callClosePpp = 0;
#if NO_SYS
ppp_close(ppp, 0);
#else
pppapi_close(ppp, 0);
#endif
ppp = NULL;
}
#endif /* USE_PPP */
}
#if USE_PPP
if(ppp) {
u32_t started;
printf("Closing PPP connection...\n");
/* make sure to disconnect PPP before stopping the program... */
#if NO_SYS
ppp_close(ppp, 0);
#else
pppapi_close(ppp, 0);
#endif
ppp = NULL;
/* Wait for some time to let PPP finish... */
started = sys_now();
do
{
#if USE_ETHERNET && !PCAPIF_RX_USE_THREAD
pcapif_poll(&netif);
#else /* USE_ETHERNET && !PCAPIF_RX_USE_THREAD */
sys_msleep(50);
#endif /* USE_ETHERNET && !PCAPIF_RX_USE_THREAD */
/* @todo: need a better check here: only wait until PPP is down */
} while(sys_now() - started < 5000);
}
#endif /* USE_PPP */
#if (LWIP_SOCKET || LWIP_NETCONN) && LWIP_NETCONN_SEM_PER_THREAD
netconn_thread_cleanup();
#endif
#if USE_ETHERNET
/* release the pcap library... */
pcapif_shutdown(&netif);
#endif /* USE_ETHERNET */
}
#if USE_PPP && PPPOS_SUPPORT
int main(int argc, char **argv)
#else /* USE_PPP && PPPOS_SUPPORT */
int main(void)
#endif /* USE_PPP && PPPOS_SUPPORT */
{
#if USE_PPP && PPPOS_SUPPORT
if(argc > 1) {
sio_idx = (u8_t)atoi(argv[1]);
}
printf("Using serial port %d for PPP\n", sio_idx);
#endif /* USE_PPP && PPPOS_SUPPORT */
/* no stdio-buffering, please! */
setvbuf(stdout, NULL,_IONBF, 0);
main_loop();
return 0;
}

4295
ext/lwip/CHANGELOG
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5
ext/lwip/FILES
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@@ -1,5 +0,0 @@
src/ - The source code for the lwIP TCP/IP stack.
doc/ - The documentation for lwIP.
test/ - Some code to test whether the sources do what they should.
See also the FILES file in each subdirectory.

100
ext/lwip/README
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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 the RAM 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.
FEATURES
* IP (Internet Protocol, IPv4 and IPv6) including packet forwarding over
multiple network interfaces
* ICMP (Internet Control Message Protocol) for network maintenance and debugging
* IGMP (Internet Group Management Protocol) for multicast traffic management
* MLD (Multicast listener discovery for IPv6). Aims to be compliant with
RFC 2710. No support for MLDv2
* ND (Neighbor discovery and stateless address autoconfiguration for IPv6).
Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862
(Address autoconfiguration)
* UDP (User Datagram Protocol) including experimental UDP-lite extensions
* TCP (Transmission Control Protocol) with congestion control, RTT estimation
and fast recovery/fast retransmit
* raw/native API for enhanced performance
* Optional Berkeley-like socket API
* DNS (Domain names resolver)
APPLICATIONS
* HTTP server with SSI and CGI
* SNMPv2c agent with MIB compiler (Simple Network Management Protocol)
* SNTP (Simple network time protocol)
* NetBIOS name service responder
* MDNS (Multicast DNS) responder
* iPerf server implementation
LICENSE
lwIP is freely available under a BSD license.
DEVELOPMENT
lwIP has grown into an excellent TCP/IP stack for embedded devices,
and developers using the stack often submit bug fixes, improvements,
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, Git and the
mailing list. A core team of developers will commit changes to the
Git source tree.
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 Git server access for users and
developers.
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/
Continuous integration builds (GCC, clang):
https://travis-ci.org/yarrick/lwip-merged
DOCUMENTATION
Self documentation of the source code is regularly extracted from the current
Git sources and is available from this web page:
http://www.nongnu.org/lwip/
There is now a constantly growing wiki about lwIP at
http://lwip.wikia.com/wiki/LwIP_Wiki
Also, there are mailing lists you can subscribe at
http://savannah.nongnu.org/mail/?group=lwip
plus searchable archives:
http://lists.nongnu.org/archive/html/lwip-users/
http://lists.nongnu.org/archive/html/lwip-devel/
lwIP was originally written by Adam Dunkels:
http://dunkels.com/adam/
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.
Adam Dunkels <adam@sics.se>
Leon Woestenberg <leon.woestenberg@gmx.net>

243
ext/lwip/UPGRADING
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This file lists major changes between release versions that require
ports or applications to be changed. Use it to update a port or an
application written for an older version of lwIP to correctly work
with newer versions.
(git master)
* [Enter new changes just after this line - do not remove this line]
(2.0.2)
++ Application changes:
* slipif: The way to pass serial port number has changed. netif->num is not
supported any more, netif->state is interpreted as an u8_t port number now
(it's not a POINTER to an u8_t any more!)
(2.0.1)
++ Application changes:
* UDP does NOT receive multicast traffic from ALL netifs on an UDP PCB bound to a specific
netif any more. Users need to bind to IP_ADDR_ANY to receive multicast traffic and compare
ip_current_netif() to the desired netif for every packet.
See bug #49662 for an explanation.
(2.0.0)
++ Application changes:
* Changed netif "up" flag handling to be an administrative flag (as opposed to the previous meaning of
"ip4-address-valid", a netif will now not be used for transmission if not up) -> even a DHCP netif
has to be set "up" before starting the DHCP client
* Added IPv6 support (dual-stack or IPv4/IPv6 only)
* Changed ip_addr_t to be a union in dual-stack mode (use ip4_addr_t where referring to IPv4 only).
* Major rewrite of SNMP (added MIB parser that creates code stubs for custom MIBs);
supports SNMPv2c (experimental v3 support)
* Moved some core applications from contrib repository to src/apps (and include/lwip/apps)
+++ Raw API:
* Changed TCP listen backlog: removed tcp_accepted(), added the function pair tcp_backlog_delayed()/
tcp_backlog_accepted() to explicitly delay backlog handling on a connection pcb
+++ Socket API:
* Added an implementation for posix sendmsg()
* Added LWIP_FIONREAD_LINUXMODE that makes ioctl/FIONREAD return the size of the next pending datagram
++ Port changes
+++ new files:
* MANY new and moved files!
* Added src/Filelists.mk for use in Makefile projects
* Continued moving stack-internal parts from abc.h to abc_priv.h in sub-folder "priv"
to let abc.h only contain the actual application programmer's API
+++ sys layer:
* Made LWIP_TCPIP_CORE_LOCKING==1 the default as it usually performs better than
the traditional message passing (although with LWIP_COMPAT_MUTEX you are still
open to priority inversion, so this is not recommended any more)
* Added LWIP_NETCONN_SEM_PER_THREAD to use one "op_completed" semaphore per thread
instead of using one per netconn (these semaphores are used even with core locking
enabled as some longer lasting functions like big writes still need to delay)
* Added generalized abstraction for itoa(), strnicmp(), stricmp() and strnstr()
in def.h (to be overridden in cc.h) instead of config
options for netbiosns, httpd, dns, etc. ...
* New abstraction for hton* and ntoh* functions in def.h.
To override them, use the following in cc.h:
#define lwip_htons(x) <your_htons>
#define lwip_htonl(x) <your_htonl>
+++ new options:
* TODO
+++ new pools:
* Added LWIP_MEMPOOL_* (declare/init/alloc/free) to declare private memp pools
that share memp.c code but do not have to be made global via lwippools.h
* Added pools for IPv6, MPU_COMPATIBLE, dns-api, netif-api, etc.
* added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when a memp pool was empty and an item
is now available
* Signature of LWIP_HOOK_VLAN_SET macro was changed
* LWIP_DECLARE_MEMORY_ALIGNED() may be used to declare aligned memory buffers (mem/memp)
or to move buffers to dedicated memory using compiler attributes
* Standard C headers are used to define sized types and printf formatters
(disable by setting LWIP_NO_STDINT_H=1 or LWIP_NO_INTTYPES_H=1 if your compiler
does not support these)
++ Major bugfixes/improvements
* Added IPv6 support (dual-stack or IPv4/IPv6 only)
* Major rewrite of PPP (incl. keep-up with apache pppd)
see doc/ppp.txt for an upgrading how-to
* Major rewrite of SNMP (incl. MIB parser)
* Fixed timing issues that might have lead to losing a DHCP lease
* Made rx processing path more robust against crafted errors
* TCP window scaling support
* modification of api modules to support FreeRTOS-MPU (don't pass stack-pointers to other threads)
* made DNS client more robust
* support PBUF_REF for RX packets
* LWIP_NETCONN_FULLDUPLEX allows netconn/sockets to be used for reading/writing from separate
threads each (needs LWIP_NETCONN_SEM_PER_THREAD)
* Moved and reordered stats (mainly memp/mib2)
(1.4.0)
++ Application changes:
* Replaced struct ip_addr by typedef ip_addr_t (struct ip_addr is kept for
compatibility to old applications, but will be removed in the future).
* Renamed mem_realloc() to mem_trim() to prevent confusion with realloc()
+++ Raw API:
* Changed the semantics of tcp_close() (since it was rather a
shutdown before): Now the application does *NOT* get any calls to the recv
callback (aside from NULL/closed) after calling tcp_close()
* When calling tcp_abort() from a raw API TCP callback function,
make sure you return ERR_ABRT to prevent accessing unallocated memory.
(ERR_ABRT now means the applicaiton has called tcp_abort!)
+++ Netconn API:
* Changed netconn_receive() and netconn_accept() to return
err_t, not a pointer to new data/netconn.
+++ Socket API:
* LWIP_SO_RCVTIMEO: when accept() or recv() time out, they
now set errno to EWOULDBLOCK/EAGAIN, not ETIMEDOUT.
* Added a minimal version of posix fctl() to have a
standardised way to set O_NONBLOCK for nonblocking sockets.
+++ all APIs:
* correctly implemented SO(F)_REUSEADDR
++ Port changes
+++ new files:
* Added 4 new files: def.c, timers.c, timers.h, tcp_impl.h:
* Moved stack-internal parts of tcp.h to tcp_impl.h, tcp.h now only contains
the actual application programmer's API
* Separated timer implementation from sys.h/.c, moved to timers.h/.c;
Added timer implementation for NO_SYS==1, set NO_SYS_NO_TIMERS==1 if you
still want to use your own timer implementation for NO_SYS==0 (as before).
+++ sys layer:
* Converted mbox- and semaphore-functions to take pointers to sys_mbox_t/
sys_sem_t;
* Converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
* Added Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX to let sys.h use
binary semaphores instead of mutexes - as before)
+++ new options:
* Don't waste memory when chaining segments, added option TCP_OVERSIZE to
prevent creating many small pbufs when calling tcp_write with many small
blocks of data. Instead, pbufs are allocated larger than needed and the
space is used for later calls to tcp_write.
* Added LWIP_NETIF_TX_SINGLE_PBUF to always copy to try to create single pbufs
in tcp_write/udp_send.
* Added an additional option LWIP_ETHERNET to support ethernet without ARP
(necessary for pure PPPoE)
* Add MEMP_SEPARATE_POOLS to place memory pools in separate arrays. This may
be used to place these pools into user-defined memory by using external
declaration.
* Added TCP_SNDQUEUELOWAT corresponding to TCP_SNDLOWAT
+++ new pools:
* Netdb uses a memp pool for allocating memory when getaddrinfo() is called,
so MEMP_NUM_NETDB has to be set accordingly.
* DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses a memp pool instead of the heap, so
MEMP_NUM_LOCALHOSTLIST has to be set accordingly.
* Snmp-agent uses a memp pools instead of the heap, so MEMP_NUM_SNMP_* have
to be set accordingly.
* PPPoE uses a MEMP pool instead of the heap, so MEMP_NUM_PPPOE_INTERFACES
has to be set accordingly
* Integrated loopif into netif.c - loopif does not have to be created by the
port any more, just define LWIP_HAVE_LOOPIF to 1.
* Added define LWIP_RAND() for lwip-wide randomization (needs to be defined
in cc.h, e.g. used by igmp)
* Added printf-formatter X8_F to printf u8_t as hex
* The heap now may be moved to user-defined memory by defining
LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
* added autoip_set_struct() and dhcp_set_struct() to let autoip and dhcp work
with user-allocated structs instead of calling mem_malloc
* Added const char* name to mem- and memp-stats for easier debugging.
* Calculate the TCP/UDP checksum while copying to only fetch data once:
Define LWIP_CHKSUM_COPY to a memcpy-like function that returns the checksum
* Added SO_REUSE_RXTOALL to pass received UDP broadcast/multicast packets to
more than one pcb.
* Changed the semantics of ARP_QUEUEING==0: ARP_QUEUEING now cannot be turned
off any more, if this is set to 0, only one packet (the most recent one) is
queued (like demanded by RFC 1122).
++ Major bugfixes/improvements
* Implemented tcp_shutdown() to only shut down one end of a connection
* Implemented shutdown() at socket- and netconn-level
* Added errorset support to select() + improved select speed overhead
* Merged pppd to v2.3.11 (including some backported bugfixes from 2.4.x)
* Added timer implementation for NO_SYS==1 (may be disabled with NO_SYS_NO_TIMERS==1
* Use macros defined in ip_addr.h to work with IP addresses
* Implemented many nonblocking socket/netconn functions
* Fixed ARP input processing: only add a new entry if a request was directed as us
* mem_realloc() to mem_trim() to prevent confusion with realloc()
* Some improvements for AutoIP (don't route/forward link-local addresses, don't break
existing connections when assigning a routable address)
* Correctly handle remote side overrunning our rcv_wnd in ooseq case
* Removed packing from ip_addr_t, the packed version is now only used in protocol headers
* Corrected PBUF_POOL_BUFSIZE for ports where ETH_PAD_SIZE > 0
* Added support for static ARP table entries
(STABLE-1.3.2)
* initial version of this file

9
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@@ -1,9 +0,0 @@
doxygen/ - Configuration files and scripts to create the lwIP doxygen source
documentation (found at http://www.nongnu.org/lwip/)
savannah.txt - How to obtain the current development source code.
contrib.txt - How to contribute to lwIP as a developer.
rawapi.txt - The documentation for the core API of lwIP.
Also provides an overview about the other APIs and multithreading.
sys_arch.txt - The documentation for a system abstraction layer of lwIP.
ppp.txt - Documentation of the PPP interface for lwIP.

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void
eth_mac_irq()
{
/* Service MAC IRQ here */
/* Allocate pbuf from pool (avoid using heap in interrupts) */
struct pbuf* p = pbuf_alloc(PBUF_RAW, eth_data_count, PBUF_POOL);
if(p != NULL) {
/* Copy ethernet frame into pbuf */
pbuf_take(p, eth_data, eth_data_count);
/* Put in a queue which is processed in main loop */
if(!queue_try_put(&queue, p)) {
/* queue is full -> packet loss */
pbuf_free(p);
}
}
}
static err_t
netif_output(struct netif *netif, struct pbuf *p)
{
LINK_STATS_INC(link.xmit);
/* Update SNMP stats (only if you use SNMP) */
MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len);
int unicast = ((p->payload[0] & 0x01) == 0);
if (unicast) {
MIB2_STATS_NETIF_INC(netif, ifoutucastpkts);
} else {
MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts);
}
lock_interrupts();
pbuf_copy_partial(p, mac_send_buffer, p->tot_len, 0);
/* Start MAC transmit here */
unlock_interrupts();
return ERR_OK;
}
static void
netif_status_callback(struct netif *netif)
{
printf("netif status changed %s\n", ip4addr_ntoa(netif_ip4_addr(netif)));
}
static err_t
netif_init(struct netif *netif)
{
netif->linkoutput = netif_output;
netif->output = etharp_output;
netif->output_ip6 = ethip6_output;
netif->mtu = ETHERNET_MTU;
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP | NETIF_FLAG_MLD6;
MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, 100000000);
SMEMCPY(netif->hwaddr, your_mac_address_goes_here, sizeof(netif->hwaddr));
netif->hwaddr_len = sizeof(netif->hwaddr);
return ERR_OK;
}
void
main(void)
{
struct netif netif;
lwip_init();
netif_add(&netif, IP4_ADDR_ANY, IP4_ADDR_ANY, IP4_ADDR_ANY, NULL, netif_init, netif_input);
netif.name[0] = 'e';
netif.name[1] = '0';
netif_create_ip6_linklocal_address(&netif, 1);
netif.ip6_autoconfig_enabled = 1;
netif_set_status_callback(&netif, netif_status_callback);
netif_set_default(&netif);
netif_set_up(&netif);
/* Start DHCP and HTTPD */
dhcp_start(&netif );
httpd_init();
while(1) {
/* Check link state, e.g. via MDIO communication with PHY */
if(link_state_changed()) {
if(link_is_up()) {
netif_set_link_up(&netif);
} else {
netif_set_link_down(&netif);
}
}
/* Check for received frames, feed them to lwIP */
lock_interrupts();
struct pbuf* p = queue_try_get(&queue);
unlock_interrupts();
if(p != NULL) {
LINK_STATS_INC(link.recv);
/* Update SNMP stats (only if you use SNMP) */
MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len);
int unicast = ((p->payload[0] & 0x01) == 0);
if (unicast) {
MIB2_STATS_NETIF_INC(netif, ifinucastpkts);
} else {
MIB2_STATS_NETIF_INC(netif, ifinnucastpkts);
}
if(netif.input(p, &netif) != ERR_OK) {
pbuf_free(p);
}
}
/* Cyclic lwIP timers check */
sys_check_timeouts();
/* your application goes here */
}
}

58
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@@ -1,58 +0,0 @@
1 Introduction
This document describes some guidelines for people participating
in lwIP development.
2 How to contribute to lwIP
Here is a short list of suggestions to anybody working with lwIP and
trying to contribute bug reports, fixes, enhancements, platform ports etc.
First of all as you may already know lwIP is a volunteer project so feedback
to fixes or questions might often come late. Hopefully the bug and patch tracking
features of Savannah help us not lose users' input.
2.1 Source code style:
1. do not use tabs.
2. indentation is two spaces per level (i.e. per tab).
3. end debug messages with a trailing newline (\n).
4. one space between keyword and opening bracket.
5. no space between function and opening bracket.
6. one space and no newline before opening curly braces of a block.
7. closing curly brace on a single line.
8. spaces surrounding assignment and comparisons.
9. don't initialize static and/or global variables to zero, the compiler takes care of that.
10. use current source code style as further reference.
2.2 Source code documentation style:
1. JavaDoc compliant and Doxygen compatible.
2. Function documentation above functions in .c files, not .h files.
(This forces you to synchronize documentation and implementation.)
3. Use current documentation style as further reference.
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 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
both core and arch specific stuff please separate them so that the core can
be applied separately while leaving the other patch 'open'. The preferred way
is to NOT touch archs you can't test and let maintainers take care of them.
This is a good way to see if they are used at all - the same goes for unix
netifs except tapif.
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. 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 Git access to submit and maintain your port in the contrib Git module.

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ext/lwip/doc/doxygen/generate.bat
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@@ -1 +0,0 @@
doxygen lwip.Doxyfile

3
ext/lwip/doc/doxygen/generate.sh
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@@ -1,3 +0,0 @@
#!/bin/sh
doxygen lwip.Doxyfile

132
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/**
* @defgroup lwip lwIP
*
* @defgroup infrastructure Infrastructure
*
* @defgroup callbackstyle_api Callback-style APIs
* Non thread-safe APIs, callback style for maximum performance and minimum
* memory footprint.
*
* @defgroup sequential_api Sequential-style APIs
* Sequential-style APIs, blocking functions. More overhead, but can be called
* from any thread except TCPIP thread.
*
* @defgroup addons Addons
*
* @defgroup apps Applications
*/
/**
* @mainpage Overview
* @verbinclude "README"
*/
/**
* @page upgrading Upgrading
* @verbinclude "UPGRADING"
*/
/**
* @page changelog Changelog
* @verbinclude "CHANGELOG"
*/
/**
* @page contrib How to contribute to lwIP
* @verbinclude "contrib.txt"
*/
/**
* @page pitfalls Common pitfalls
*
* Multiple Execution Contexts in lwIP code
* ========================================
*
* The most common source of lwIP problems is to have multiple execution contexts
* inside the lwIP code.
*
* lwIP can be used in two basic modes: @ref lwip_nosys (no OS/RTOS
* running on target system) or @ref lwip_os (there is an OS running
* on the target system).
*
* Mainloop Mode
* -------------
* In mainloop mode, only @ref callbackstyle_api can be used.
* The user has two possibilities to ensure there is only one
* exection context at a time in lwIP:
*
* 1) Deliver RX ethernet packets directly in interrupt context to lwIP
* by calling netif->input directly in interrupt. This implies all lwIP
* callback functions are called in IRQ context, which may cause further
* problems in application code: IRQ is blocked for a long time, multiple
* execution contexts in application code etc. When the application wants
* to call lwIP, it only needs to disable interrupts during the call.
* If timers are involved, even more locking code is needed to lock out
* timer IRQ and ethernet IRQ from each other, assuming these may be nested.
*
* 2) Run lwIP in a mainloop. There is example code here: @ref lwip_nosys.
* lwIP is _ONLY_ called from mainloop callstacks here. The ethernet IRQ
* has to put received telegrams into a queue which is polled in the
* mainloop. Ensure lwIP is _NEVER_ called from an interrupt, e.g.
* some SPI IRQ wants to forward data to udp_send() or tcp_write()!
*
* OS Mode
* -------
* In OS mode, @ref callbackstyle_api AND @ref sequential_api can be used.
* @ref sequential_api are designed to be called from threads other than
* the TCPIP thread, so there is nothing to consider here.
* But @ref callbackstyle_api functions must _ONLY_ be called from
* TCPIP thread. It is a common error to call these from other threads
* or from IRQ contexts. ​Ethernet RX needs to deliver incoming packets
* in the correct way by sending a message to TCPIP thread, this is
* implemented in tcpip_input().​​
* Again, ensure lwIP is _NEVER_ called from an interrupt, e.g.
* some SPI IRQ wants to forward data to udp_send() or tcp_write()!
*
* 1) tcpip_callback() can be used get called back from TCPIP thread,
* it is safe to call any @ref callbackstyle_api from there.
*
* 2) Use @ref LWIP_TCPIP_CORE_LOCKING. All @ref callbackstyle_api
* functions can be called when lwIP core lock is aquired, see
* @ref LOCK_TCPIP_CORE() and @ref UNLOCK_TCPIP_CORE().
* These macros cannot be used in an interrupt context!
* Note the OS must correctly handle priority inversion for this.
*/
/**
* @page bugs Reporting bugs
* Please report bugs in the lwIP bug tracker at savannah.\n
* BEFORE submitting, please check if the bug has already been reported!\n
* https://savannah.nongnu.org/bugs/?group=lwip
*/
/**
* @defgroup lwip_nosys Mainloop mode ("NO_SYS")
* @ingroup lwip
* Use this mode if you do not run an OS on your system. \#define NO_SYS to 1.
* Feed incoming packets to netif->input(pbuf, netif) function from mainloop,
* *not* *from* *interrupt* *context*. You can allocate a @ref pbuf in interrupt
* context and put them into a queue which is processed from mainloop.\n
* Call sys_check_timeouts() periodically in the mainloop.\n
* Porting: implement all functions in @ref sys_time, @ref sys_prot and
* @ref compiler_abstraction.\n
* You can only use @ref callbackstyle_api in this mode.\n
* Sample code:\n
* @include NO_SYS_SampleCode.c
*/
/**
* @defgroup lwip_os OS mode (TCPIP thread)
* @ingroup lwip
* Use this mode if you run an OS on your system. It is recommended to
* use an RTOS that correctly handles priority inversion and
* to use @ref LWIP_TCPIP_CORE_LOCKING.\n
* Porting: implement all functions in @ref sys_layer.\n
* You can use @ref callbackstyle_api together with @ref tcpip_callback,
* and all @ref sequential_api.
*/
/**
* @page raw_api lwIP API
* @verbinclude "rawapi.txt"
*/

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@@ -1,10 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Redirection</title>
<meta http-equiv="refresh" content="0; url=html/index.html" />
</head>
<body>
<a href="html/index.html">index.html</a>
</body>
</html>

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