diff options
Diffstat (limited to '')
52 files changed, 11857 insertions, 0 deletions
diff --git a/tests/deckard/contrib/libswrap/.gitignore b/tests/deckard/contrib/libswrap/.gitignore new file mode 100644 index 0000000..5d8f581 --- /dev/null +++ b/tests/deckard/contrib/libswrap/.gitignore @@ -0,0 +1,9 @@ +*.a +*.o +.* +*.swp +*~ +build +obj +cscope.* +tags diff --git a/tests/deckard/contrib/libswrap/AUTHORS b/tests/deckard/contrib/libswrap/AUTHORS new file mode 100644 index 0000000..b29dad2 --- /dev/null +++ b/tests/deckard/contrib/libswrap/AUTHORS @@ -0,0 +1,3 @@ +Jelmer Vernooij <jelmer@samba.org> +Stefan Metzmacher <metze@samba.org> +Andreas Schneider <asn@samba.org> diff --git a/tests/deckard/contrib/libswrap/CMakeLists.txt b/tests/deckard/contrib/libswrap/CMakeLists.txt new file mode 100644 index 0000000..4d7c12e --- /dev/null +++ b/tests/deckard/contrib/libswrap/CMakeLists.txt @@ -0,0 +1,86 @@ +project(socket_wrapper C) + +# Required cmake version +cmake_minimum_required(VERSION 2.8.5) + +# global needed variables +set(APPLICATION_NAME ${PROJECT_NAME}) + +set(APPLICATION_VERSION_MAJOR "1") +set(APPLICATION_VERSION_MINOR "1") +set(APPLICATION_VERSION_PATCH "7") + +set(APPLICATION_VERSION "${APPLICATION_VERSION_MAJOR}.${APPLICATION_VERSION_MINOR}.${APPLICATION_VERSION_PATCH}") + +# SOVERSION scheme: CURRENT.AGE.REVISION +# If there was an incompatible interface change: +# Increment CURRENT. Set AGE and REVISION to 0 +# If there was a compatible interface change: +# Increment AGE. Set REVISION to 0 +# If the source code was changed, but there were no interface changes: +# Increment REVISION. +set(LIBRARY_VERSION "0.1.7") +set(LIBRARY_SOVERSION "0") + +# where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked +set(CMAKE_MODULE_PATH + ${CMAKE_SOURCE_DIR}/cmake/Modules +) + +# add definitions +include(DefineCMakeDefaults) +include(DefinePlatformDefaults) +include(DefineCompilerFlags) +include(DefineInstallationPaths) +include(DefineOptions.cmake) +include(CPackConfig.cmake) + +# disallow in-source build +include(MacroEnsureOutOfSourceBuild) +macro_ensure_out_of_source_build("${PROJECT_NAME} requires an out of source build. Please create a separate build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there.") + +# Find out if we have threading available +set(CMAKE_THREAD_PREFER_PTHREADS ON) +find_package(Threads) + +# config.h checks +include(ConfigureChecks.cmake) +configure_file(config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h) + +# check subdirectories +add_subdirectory(src) + +if (UNIT_TESTING) + find_package(cmocka 0.4.1 REQUIRED) + + include(AddCMockaTest) + add_subdirectory(tests) +endif (UNIT_TESTING) + +# pkg-config file +get_filename_component(SOCKET_WRAPPER_LIB ${SOCKET_WRAPPER_LOCATION} NAME) + +configure_file(socket_wrapper.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/socket_wrapper.pc @ONLY) +install( + FILES + ${CMAKE_CURRENT_BINARY_DIR}/socket_wrapper.pc + DESTINATION + ${LIB_INSTALL_DIR}/pkgconfig + COMPONENT + pkgconfig +) + +# cmake config files +configure_file(socket_wrapper-config-version.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/socket_wrapper-config-version.cmake @ONLY) +configure_file(socket_wrapper-config.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/socket_wrapper-config.cmake @ONLY) +install( + FILES + ${CMAKE_CURRENT_BINARY_DIR}/socket_wrapper-config-version.cmake + ${CMAKE_CURRENT_BINARY_DIR}/socket_wrapper-config.cmake + DESTINATION + ${CMAKE_INSTALL_DIR}/socket_wrapper + COMPONENT + devel +) + +add_subdirectory(doc) diff --git a/tests/deckard/contrib/libswrap/COPYING b/tests/deckard/contrib/libswrap/COPYING new file mode 100644 index 0000000..e6227e1 --- /dev/null +++ b/tests/deckard/contrib/libswrap/COPYING @@ -0,0 +1,32 @@ +Copyright (C) Jelmer Vernooij 2005,2008 <jelmer@samba.org> +Copyright (C) Stefan Metzmacher 2006-2009 <metze@samba.org> +Copyright (C) Andreas Schneider 2013 <asn@samba.org> + +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 author 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 AUTHOR 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 AUTHOR 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. diff --git a/tests/deckard/contrib/libswrap/CPackConfig.cmake b/tests/deckard/contrib/libswrap/CPackConfig.cmake new file mode 100644 index 0000000..dc74dfa --- /dev/null +++ b/tests/deckard/contrib/libswrap/CPackConfig.cmake @@ -0,0 +1,53 @@ +# For help take a look at: +# http://www.cmake.org/Wiki/CMake:CPackConfiguration + +### general settings +set(CPACK_PACKAGE_NAME ${APPLICATION_NAME}) +set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "The SSH library") +set(CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_SOURCE_DIR}/README") +set(CPACK_PACKAGE_VENDOR "The SSH Library Development Team") +set(CPACK_PACKAGE_INSTALL_DIRECTORY ${CPACK_PACKAGE_NAME}) +set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_SOURCE_DIR}/COPYING") + + +### versions +set(CPACK_PACKAGE_VERSION_MAJOR "${APPLICATION_VERSION_MAJOR}") +set(CPACK_PACKAGE_VERSION_MINOR "${APPLICATION_VERSION_MINOR}") +set(CPACK_PACKAGE_VERSION_PATCH "${APPLICATION_VERSION_PATCH}") +set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}") + + +### source generator +set(CPACK_SOURCE_GENERATOR "TGZ") +set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]svn/;/[.]git/;.gitignore;/build/;/obj/;tags;cscope.*") +set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}") + +if (WIN32) + set(CPACK_GENERATOR "ZIP") + + ### nsis generator + find_package(NSIS) + if (NSIS_MAKE) + set(CPACK_GENERATOR "${CPACK_GENERATOR};NSIS") + set(CPACK_NSIS_DISPLAY_NAME "The SSH Library") + set(CPACK_NSIS_COMPRESSOR "/SOLID zlib") + set(CPACK_NSIS_MENU_LINKS "http://www.libssh.org/" "libssh homepage") + endif (NSIS_MAKE) +endif (WIN32) + +set(CPACK_PACKAGE_INSTALL_DIRECTORY "libssh") + +set(CPACK_PACKAGE_FILE_NAME ${APPLICATION_NAME}-${CPACK_PACKAGE_VERSION}) + +set(CPACK_COMPONENT_LIBRARIES_DISPLAY_NAME "Libraries") +set(CPACK_COMPONENT_HEADERS_DISPLAY_NAME "C/C++ Headers") +set(CPACK_COMPONENT_LIBRARIES_DESCRIPTION + "Libraries used to build programs which use libssh") +set(CPACK_COMPONENT_HEADERS_DESCRIPTION + "C/C++ header files for use with libssh") +set(CPACK_COMPONENT_HEADERS_DEPENDS libraries) +#set(CPACK_COMPONENT_APPLICATIONS_GROUP "Runtime") +set(CPACK_COMPONENT_LIBRARIES_GROUP "Development") +set(CPACK_COMPONENT_HEADERS_GROUP "Development") + +include(CPack) diff --git a/tests/deckard/contrib/libswrap/CTestConfig.cmake b/tests/deckard/contrib/libswrap/CTestConfig.cmake new file mode 100644 index 0000000..3c29af3 --- /dev/null +++ b/tests/deckard/contrib/libswrap/CTestConfig.cmake @@ -0,0 +1,9 @@ +set(UPDATE_TYPE "true") + +set(CTEST_PROJECT_NAME "socketwrapper") +set(CTEST_NIGHTLY_START_TIME "01:00:00 UTC") + +set(CTEST_DROP_METHOD "https") +set(CTEST_DROP_SITE "mock.cryptomilk.org") +set(CTEST_DROP_LOCATION "/submit.php?project=socketwrapper") +set(CTEST_DROP_SITE_CDASH TRUE) diff --git a/tests/deckard/contrib/libswrap/ChangeLog b/tests/deckard/contrib/libswrap/ChangeLog new file mode 100644 index 0000000..dd03665 --- /dev/null +++ b/tests/deckard/contrib/libswrap/ChangeLog @@ -0,0 +1,60 @@ +ChangeLog +========== + +version 1.1.7 (released 2016-05-20) + * Added support for accept4() + * Added support for OpenBSD + * Fixed sendto() with UDP and a connected socket + * Fixed AF_RAWLINK sockets + +version 1.1.6 (released 2016-03-15) + * Added a wrapper for write() + * Added support for automatic binding of ephemeral ports + * Fixed recvmsg() with UDP + * Fixed AF_NETLINK sockets + +version 1.1.5 (released 2015-10-15) + * Added support for TCP_NODELAY in setsockopt/getsockopt + * Fixed cmsg space calculation + +version 1.1.4 (released 2015-08-25) + * Fixed handling of msg_name in recvmsg() + * Fixed sendmsg()/recvmsg() TCP support + * Fixed several compile warnings + * Added environment variable to change MTU + +version 1.1.3 (released 2015-02-23) + * Added support for address sanitizer. + * Fixed leaking of memory and fds of stale sockets. + * Fixed the library loading code. + +version 1.1.2 (released 2014-10-01) + * Added support for fnctl(F_DUPFD). + * Added support for glibc 2.20.90. + +version 1.1.1 (released 2014-06-05) + * Disable incomplete address in use check in bind(). + +version 1.1.0 (released 2014-06-02) + * Added support for IP_PKTINFO in recvmsg(). + * Added support for IPV6_PKTINFO in recvmsg(). + * Added support for IP_RECVDSTADDR in recvmsg() on BSD. + * Added support for more socket options in getsockopt(). + * Added support for bindresvport(). + * Fixed rebinding on connect(). + * Fixed sockaddr buffer truncation in getsockname() and getpeername(). + * Fixed special cases in bind(). + * Fixed loading libc on some platforms. + +version 1.0.2 (released 2014-05-05) + * Fixed memory leaks + * Fixed calling open from libc. + * Fixed loading libc functions on some platforms. + +version 1.0.1 (released 2014-02-04) + * Added --libs to pkg-config. + * Added socket_wrapper-config.cmake + * Fixed a bug packaging the obj directory. + +version 1.0.0 (released 2014-02-02) + * Initial release diff --git a/tests/deckard/contrib/libswrap/ConfigureChecks.cmake b/tests/deckard/contrib/libswrap/ConfigureChecks.cmake new file mode 100644 index 0000000..48455ef --- /dev/null +++ b/tests/deckard/contrib/libswrap/ConfigureChecks.cmake @@ -0,0 +1,232 @@ +include(CheckIncludeFile) +include(CheckSymbolExists) +include(CheckFunctionExists) +include(CheckLibraryExists) +include(CheckTypeSize) +include(CheckStructHasMember) +include(CheckPrototypeDefinition) +include(TestBigEndian) + +set(PACKAGE ${APPLICATION_NAME}) +set(VERSION ${APPLICATION_VERSION}) +set(DATADIR ${DATA_INSTALL_DIR}) +set(LIBDIR ${LIB_INSTALL_DIR}) +set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}") +set(SYSCONFDIR ${SYSCONF_INSTALL_DIR}) + +set(BINARYDIR ${CMAKE_BINARY_DIR}) +set(SOURCEDIR ${CMAKE_SOURCE_DIR}) + +function(COMPILER_DUMPVERSION _OUTPUT_VERSION) + # Remove whitespaces from the argument. + # This is needed for CC="ccache gcc" cmake .. + string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}") + + execute_process( + COMMAND + ${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion + OUTPUT_VARIABLE _COMPILER_VERSION + ) + + string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2" + _COMPILER_VERSION "${_COMPILER_VERSION}") + + set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE) +endfunction() + +if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2) + compiler_dumpversion(GNUCC_VERSION) + if (NOT GNUCC_VERSION EQUAL 34) + set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden") + check_c_source_compiles( +"void __attribute__((visibility(\"default\"))) test() {} +int main(void){ return 0; } +" WITH_VISIBILITY_HIDDEN) + set(CMAKE_REQUIRED_FLAGS "") + endif (NOT GNUCC_VERSION EQUAL 34) +endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2) + +# HEADERS +check_include_file(sys/filio.h HAVE_SYS_FILIO_H) +check_include_file(sys/signalfd.h HAVE_SYS_SIGNALFD_H) +check_include_file(sys/eventfd.h HAVE_SYS_EVENTFD_H) +check_include_file(sys/timerfd.h HAVE_SYS_TIMERFD_H) +check_include_file(gnu/lib-names.h HAVE_GNU_LIB_NAMES_H) +check_include_file(rpc/rpc.h HAVE_RPC_RPC_H) + +# FUNCTIONS +check_function_exists(strncpy HAVE_STRNCPY) +check_function_exists(vsnprintf HAVE_VSNPRINTF) +check_function_exists(snprintf HAVE_SNPRINTF) +check_function_exists(signalfd HAVE_SIGNALFD) +check_function_exists(eventfd HAVE_EVENTFD) +check_function_exists(timerfd_create HAVE_TIMERFD_CREATE) +check_function_exists(bindresvport HAVE_BINDRESVPORT) +check_function_exists(accept4 HAVE_ACCEPT4) + +check_function_exists(pledge HAVE_PLEDGE) + + +if (UNIX) + if (NOT LINUX) + # libsocket (Solaris) + check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET) + if (HAVE_LIBSOCKET) + set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} socket) + endif (HAVE_LIBSOCKET) + + # libnsl/inet_pton (Solaris) + check_library_exists(nsl inet_pton "" HAVE_LIBNSL) + if (HAVE_LIBNSL) + set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} nsl) + endif (HAVE_LIBNSL) + endif (NOT LINUX) + + check_function_exists(getaddrinfo HAVE_GETADDRINFO) +endif (UNIX) + +set(SWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "socket_wrapper required system libraries") + +# STRUCTS +check_struct_has_member("struct in_pktinfo" ipi_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN_PKTINFO) +set(CMAKE_REQUIRED_FLAGS -D_GNU_SOURCE) +check_struct_has_member("struct in6_pktinfo" ipi6_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN6_PKTINFO) +set(CMAKE_REQUIRED_FLAGS) + +# STRUCT MEMBERS +check_struct_has_member("struct sockaddr" sa_len "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_SOCKADDR_SA_LEN) +check_struct_has_member("struct msghdr" msg_control "sys/types.h;sys/socket.h" HAVE_STRUCT_MSGHDR_MSG_CONTROL) + +# PROTOTYPES +check_prototype_definition(gettimeofday + "int gettimeofday(struct timeval *tv, struct timezone *tz)" + "-1" + "sys/time.h" + HAVE_GETTIMEOFDAY_TZ) + +check_prototype_definition(gettimeofday + "int gettimeofday(struct timeval *tv, void *tzp)" + "-1" + "sys/time.h" + HAVE_GETTIMEOFDAY_TZ_VOID) + +check_prototype_definition(accept + "int accept(int s, struct sockaddr *addr, Psocklen_t addrlen)" + "-1" + "sys/types.h;sys/socket.h" + HAVE_ACCEPT_PSOCKLEN_T) + +check_prototype_definition(ioctl + "int ioctl(int s, int r, ...)" + "-1" + "unistd.h;sys/ioctl.h" + HAVE_IOCTL_INT) + +if (HAVE_EVENTFD) + check_prototype_definition(eventfd + "int eventfd(unsigned int count, int flags)" + "-1" + "sys/eventfd.h" + HAVE_EVENTFD_UNSIGNED_INT) +endif (HAVE_EVENTFD) + +# IPV6 +check_c_source_compiles(" + #include <stdlib.h> + #include <sys/socket.h> + #include <netdb.h> + #include <netinet/in.h> + #include <net/if.h> + +int main(void) { + struct sockaddr_storage sa_store; + struct addrinfo *ai = NULL; + struct in6_addr in6addr; + int idx = if_nametoindex(\"iface1\"); + int s = socket(AF_INET6, SOCK_STREAM, 0); + int ret = getaddrinfo(NULL, NULL, NULL, &ai); + if (ret != 0) { + const char *es = gai_strerror(ret); + } + + freeaddrinfo(ai); + { + int val = 1; +#ifdef HAVE_LINUX_IPV6_V6ONLY_26 +#define IPV6_V6ONLY 26 +#endif + ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, + (const void *)&val, sizeof(val)); + } + + return 0; +}" HAVE_IPV6) + +check_c_source_compiles(" +#include <sys/socket.h> + +int main(void) { + struct sockaddr_storage s; + + return 0; +}" HAVE_SOCKADDR_STORAGE) + +check_c_source_compiles(" +void test_destructor_attribute(void) __attribute__ ((destructor)); + +void test_destructor_attribute(void) +{ + return; +} + +int main(void) { + return 0; +}" HAVE_DESTRUCTOR_ATTRIBUTE) + +check_c_source_compiles(" +__thread int tls; + +int main(void) { + return 0; +}" HAVE_GCC_THREAD_LOCAL_STORAGE) + +check_c_source_compiles(" +void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2))); + +int main(void) { + return 0; +}" HAVE_FUNCTION_ATTRIBUTE_FORMAT) + +# If this produces a warning treat it as error! +set(CMAKE_REQUIRED_FLAGS "-Werror") +check_c_source_compiles(" +void test_address_sanitizer_attribute(void) __attribute__((no_sanitize_address)); + +void test_address_sanitizer_attribute(void) +{ + return; +} + +int main(void) { + return 0; +}" HAVE_ADDRESS_SANITIZER_ATTRIBUTE) +set(CMAKE_REQUIRED_FLAGS) + +check_library_exists(dl dlopen "" HAVE_LIBDL) +if (HAVE_LIBDL) + find_library(DLFCN_LIBRARY dl) + set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY}) +endif (HAVE_LIBDL) + +if (OSX) + set(HAVE_APPLE 1) +endif (OSX) + +# ENDIAN +if (NOT WIN32) + test_big_endian(WORDS_BIGENDIAN) +endif (NOT WIN32) + +check_type_size(pid_t SIZEOF_PID_T) + +set(SWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "swrap required system libraries") diff --git a/tests/deckard/contrib/libswrap/DefineOptions.cmake b/tests/deckard/contrib/libswrap/DefineOptions.cmake new file mode 100644 index 0000000..6030e79 --- /dev/null +++ b/tests/deckard/contrib/libswrap/DefineOptions.cmake @@ -0,0 +1 @@ +option(UNIT_TESTING "Build with unit tests" OFF) diff --git a/tests/deckard/contrib/libswrap/README b/tests/deckard/contrib/libswrap/README new file mode 100644 index 0000000..fd08cc4 --- /dev/null +++ b/tests/deckard/contrib/libswrap/README @@ -0,0 +1,21 @@ +SOCKET_WRAPPER +============== + +This is a modification of initial socket_wrapper (https://cwrap.org/socket_wrapper.html) library. +Essence : functionally both libraries are equal. But here implemented some minor changes intended +to ensure the possibility of using arbitrary IP addresses instead of private-range IP addresses. + +DESCRIPTION +----------- + +More details can be found in the manpage: + + man -l ./doc/socket_wrapper.1 + +or the raw text version: + + less ./doc/socket_wrapper.1.txt + +For installation instructions please take a look at the README.install file. + + diff --git a/tests/deckard/contrib/libswrap/README.install b/tests/deckard/contrib/libswrap/README.install new file mode 100644 index 0000000..6fe012f --- /dev/null +++ b/tests/deckard/contrib/libswrap/README.install @@ -0,0 +1,78 @@ +Obtaining the sources +===================== + +Source tarballs for socket_wrapper can be downloaded from + + https://ftp.samba.org/pub/cwrap/ + +The source code repository for socket wrapper is located under + + git://git.samba.org/socket_wrapper.git + +To create a local copy, run + + $ git clone git://git.samba.org/socket_wrapper.git + $ cd socket_wrapper + +Building from sources +===================== + +socket_wrapper uses cmake (www.cmake.org) as its build system. + +In an unpacked sources base directory, create a directory to +contain the build results, e.g. + + $ mkdir obj + $ cd obj + +Note that "obj" is just an example. The directory can +be named arbitrarily. + +Next, run cmake to configure the build, e.g. + + $ cmake -DCMAKE_INSTALL_PREFIX=<prefix> .. + +or on a 64 bit red hat system: + + $ cmake -DCMAKE_INSTALL_PREFIX=<prefix> -DLIB_SUFFIX=64 .. + +The "<prefix>" should be replaced by the intended installation +target prefix directory, typically /usr or /usr/local. + +Note that the target directory does not have to be a direct +or indirect subdirectory of the source base directory: It can +be an arbitrary directory in the system. In the general case, +".." has to be replaced by a relative or absolute path of the +source base directory in the "cmake" command line. + +One can control the build type with "-DCMAKE_BUILD_TYPE=<mode>" +where <mode> can be one of Debug, Release, RelWithDebInfo, and +some more (see cmake.org). The default is "RelWithDebInfo". + +After configuring with cmake, run the build with + + $ make + +Unit testing +============ + +In order to support running the test suite after building, +the cmocka unit test framework needs to be installed (cmocka.org), +and you need to specify + + -DUNIT_TESTING=ON + +in the cmake run. After running "make", + + $ make test + +runs the test suite. + +Installing +========== + +socket_wrapper is installed into the prefix directory +after running "cmake" and "make" with + + $ make install + diff --git a/tests/deckard/contrib/libswrap/TODO b/tests/deckard/contrib/libswrap/TODO new file mode 100644 index 0000000..147c166 --- /dev/null +++ b/tests/deckard/contrib/libswrap/TODO @@ -0,0 +1,33 @@ +TODO +===== + +This is the TODO list of this project. It should give you some hints of things +which need to be implemented. If you can spend some time on this project, then +look at the list below. + + +Library: +--------- + +Goals: +* Thread safety +* The proposed way ==> - fd-passing for tcp sockets (for free) + Approach: + - tdb "in small". So a "db file". + - for each socket an entry in the db file + (file, mmap, robust mutex. e.g. one file per local ip addr) + - socket_info : structure in db. protected by pthread robust mutexes + - socket_info_fd : --> pointer into mmap area of db + - free-list + - fd-passing: pass index in array + - the last element we pass is not a fd but the index number in the + mmaped file +* Use realpath() in socket_wrapper_dir(). + +Testing: +--------- +* Add a test to make sure detect stale file descriptors. +* Add a test for sento() to broadcast 255.255.255.255. +* Add a test to check that read/readv/send/ only work on connected sockets. +* Add unit tests for conversion functions like convert_in_un_remote(). +* Add threaded tests. diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/AddCMockaTest.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/AddCMockaTest.cmake new file mode 100644 index 0000000..b2d1ca8 --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/AddCMockaTest.cmake @@ -0,0 +1,23 @@ +# - ADD_CHECK_TEST(test_name test_source linklib1 ... linklibN) + +# Copyright (c) 2007 Daniel Gollub <dgollub@suse.de> +# Copyright (c) 2007-2010 Andreas Schneider <asn@cynapses.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +enable_testing() +include(CTest) + +if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW) + set(CMAKE_C_FLAGS_PROFILING "-g -O0 -Wall -W -Wshadow -Wunused-variable -Wunused-parameter -Wunused-function -Wunused -Wno-system-headers -Wwrite-strings -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Compiler Flags") + set(CMAKE_SHARED_LINKER_FLAGS_PROFILING " -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Linker Flags") + set(CMAKE_MODULE_LINKER_FLAGS_PROFILING " -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Linker Flags") + set(CMAKE_EXEC_LINKER_FLAGS_PROFILING " -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Linker Flags") +endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW) + +function (ADD_CMOCKA_TEST _testName _testSource) + add_executable(${_testName} ${_testSource}) + target_link_libraries(${_testName} ${ARGN}) + add_test(${_testName} ${CMAKE_CURRENT_BINARY_DIR}/${_testName}) +endfunction (ADD_CMOCKA_TEST) diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/COPYING-CMAKE-SCRIPTS b/tests/deckard/contrib/libswrap/cmake/Modules/COPYING-CMAKE-SCRIPTS new file mode 100644 index 0000000..4b41776 --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/COPYING-CMAKE-SCRIPTS @@ -0,0 +1,22 @@ +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 copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the 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. diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/CheckCCompilerFlagSSP.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/CheckCCompilerFlagSSP.cmake new file mode 100644 index 0000000..2fe4395 --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/CheckCCompilerFlagSSP.cmake @@ -0,0 +1,26 @@ +# - Check whether the C compiler supports a given flag in the +# context of a stack checking compiler option. + +# CHECK_C_COMPILER_FLAG_SSP(FLAG VARIABLE) +# +# FLAG - the compiler flag +# VARIABLE - variable to store the result +# +# This actually calls check_c_source_compiles. +# See help for CheckCSourceCompiles for a listing of variables +# that can modify the build. + +# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + + +include(CheckCSourceCompiles) + +function(CHECK_C_COMPILER_FLAG_SSP _FLAG _RESULT) + set(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}") + set(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}") + check_c_source_compiles("int main(int argc, char **argv) { char buffer[256]; return buffer[argc]=0;}" ${_RESULT}) + set(CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}") +endfunction(CHECK_C_COMPILER_FLAG_SSP) diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/DefineCMakeDefaults.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/DefineCMakeDefaults.cmake new file mode 100644 index 0000000..a6cd47e --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/DefineCMakeDefaults.cmake @@ -0,0 +1,30 @@ +# Always include srcdir and builddir in include path +# This saves typing ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY} in +# about every subdir +# since cmake 2.4.0 +set(CMAKE_INCLUDE_CURRENT_DIR ON) + +# Put the include dirs which are in the source or build tree +# before all other include dirs, so the headers in the sources +# are preferred over the already installed ones +# since cmake 2.4.1 +set(CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE ON) + +# Use colored output +# since cmake 2.4.0 +set(CMAKE_COLOR_MAKEFILE ON) + +# Define the generic version of the libraries here +set(GENERIC_LIB_VERSION "0.1.0") +set(GENERIC_LIB_SOVERSION "0") + +# Set the default build type to release with debug info +if (NOT CMAKE_BUILD_TYPE) + set(CMAKE_BUILD_TYPE RelWithDebInfo + CACHE STRING + "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." + ) +endif (NOT CMAKE_BUILD_TYPE) + +# Create the compile command database for clang by default +set(CMAKE_EXPORT_COMPILE_COMMANDS ON) diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/DefineCompilerFlags.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/DefineCompilerFlags.cmake new file mode 100644 index 0000000..53481c3 --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/DefineCompilerFlags.cmake @@ -0,0 +1,93 @@ +# define system dependent compiler flags + +include(CheckCCompilerFlag) +include(CheckCCompilerFlagSSP) + +if (UNIX AND NOT WIN32) + # + # Define GNUCC compiler flags + # + if (${CMAKE_C_COMPILER_ID} MATCHES "(GNU|Clang)") + + # add -Wconversion ? + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99") + + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wshadow -Wmissing-prototypes -Wdeclaration-after-statement") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wunused -Wfloat-equal -Wpointer-arith -Wwrite-strings -Wformat-security") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-format-attribute -Wcast-align -Wcast-qual") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-field-initializers") + + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=pointer-arith -Werror=declaration-after-statement") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=implicit-function-declaration -Werror=write-strings") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=int-to-pointer-cast -Werror=pointer-to-int-cast") + # -Werror=strict-aliasing is broken + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstrict-aliasing -Wstrict-aliasing=2") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstrict-overflow -Wstrict-overflow=5 -Werror=strict-overflow") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_GNU_SOURCE") + + if (OSX) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__APPLE_USE_RFC_3542") + endif (OSX) + + # with -fPIC + check_c_compiler_flag("-fPIC" WITH_FPIC) + if (WITH_FPIC) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC") + endif (WITH_FPIC) + + check_c_compiler_flag_ssp("-fstack-protector" WITH_STACK_PROTECTOR) + if (WITH_STACK_PROTECTOR) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector") + endif (WITH_STACK_PROTECTOR) + + if (CMAKE_BUILD_TYPE) + string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER) + if (CMAKE_BUILD_TYPE_LOWER MATCHES (release|relwithdebinfo|minsizerel)) + check_c_compiler_flag("-Wp,-D_FORTIFY_SOURCE=2" WITH_FORTIFY_SOURCE) + if (WITH_FORTIFY_SOURCE) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wp,-D_FORTIFY_SOURCE=2") + endif (WITH_FORTIFY_SOURCE) + + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=uninitialized") + endif() + endif() + endif (${CMAKE_C_COMPILER_ID} MATCHES "(GNU|Clang)") + + # + # Check for large filesystem support + # + if (CMAKE_SIZEOF_VOID_P MATCHES "8") + # with large file support + execute_process( + COMMAND + getconf LFS64_CFLAGS + OUTPUT_VARIABLE + _lfs_CFLAGS + ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE + ) + else (CMAKE_SIZEOF_VOID_P MATCHES "8") + # with large file support + execute_process( + COMMAND + getconf LFS_CFLAGS + OUTPUT_VARIABLE + _lfs_CFLAGS + ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE + ) + endif (CMAKE_SIZEOF_VOID_P MATCHES "8") + if (_lfs_CFLAGS) + string(REGEX REPLACE "[\r\n]" " " "${_lfs_CFLAGS}" "${${_lfs_CFLAGS}}") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_lfs_CFLAGS}") + endif (_lfs_CFLAGS) + +endif (UNIX AND NOT WIN32) + +if (MSVC) + # Use secure functions by defaualt and suppress warnings about + #"deprecated" functions + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_COUNT=1") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_NONSTDC_NO_WARNINGS=1 /D _CRT_SECURE_NO_WARNINGS=1") +endif (MSVC) diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/DefineInstallationPaths.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/DefineInstallationPaths.cmake new file mode 100644 index 0000000..a415f3d --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/DefineInstallationPaths.cmake @@ -0,0 +1,109 @@ +if (UNIX OR OS2) + IF (NOT APPLICATION_NAME) + MESSAGE(STATUS "${PROJECT_NAME} is used as APPLICATION_NAME") + SET(APPLICATION_NAME ${PROJECT_NAME}) + ENDIF (NOT APPLICATION_NAME) + + # Suffix for Linux + SET(LIB_SUFFIX + CACHE STRING "Define suffix of directory name (32/64)" + ) + + SET(EXEC_INSTALL_PREFIX + "${CMAKE_INSTALL_PREFIX}" + CACHE PATH "Base directory for executables and libraries" + ) + SET(SHARE_INSTALL_PREFIX + "${CMAKE_INSTALL_PREFIX}/share" + CACHE PATH "Base directory for files which go to share/" + ) + SET(DATA_INSTALL_PREFIX + "${SHARE_INSTALL_PREFIX}/${APPLICATION_NAME}" + CACHE PATH "The parent directory where applications can install their data") + + # The following are directories where stuff will be installed to + SET(BIN_INSTALL_DIR + "${EXEC_INSTALL_PREFIX}/bin" + CACHE PATH "The ${APPLICATION_NAME} binary install dir (default prefix/bin)" + ) + SET(SBIN_INSTALL_DIR + "${EXEC_INSTALL_PREFIX}/sbin" + CACHE PATH "The ${APPLICATION_NAME} sbin install dir (default prefix/sbin)" + ) + SET(LIB_INSTALL_DIR + "${EXEC_INSTALL_PREFIX}/lib${LIB_SUFFIX}" + CACHE PATH "The subdirectory relative to the install prefix where libraries will be installed (default is prefix/lib)" + ) + SET(LIBEXEC_INSTALL_DIR + "${EXEC_INSTALL_PREFIX}/libexec" + CACHE PATH "The subdirectory relative to the install prefix where libraries will be installed (default is prefix/libexec)" + ) + SET(PLUGIN_INSTALL_DIR + "${LIB_INSTALL_DIR}/${APPLICATION_NAME}" + CACHE PATH "The subdirectory relative to the install prefix where plugins will be installed (default is prefix/lib/${APPLICATION_NAME})" + ) + SET(INCLUDE_INSTALL_DIR + "${CMAKE_INSTALL_PREFIX}/include" + CACHE PATH "The subdirectory to the header prefix (default prefix/include)" + ) + + set(CMAKE_INSTALL_DIR + "${LIB_INSTALL_DIR}/cmake" + CACHE PATH "The subdirectory to install cmake config files") + + SET(DATA_INSTALL_DIR + "${DATA_INSTALL_PREFIX}" + CACHE PATH "The parent directory where applications can install their data (default prefix/share/${APPLICATION_NAME})" + ) + SET(HTML_INSTALL_DIR + "${DATA_INSTALL_PREFIX}/doc/HTML" + CACHE PATH "The HTML install dir for documentation (default data/doc/html)" + ) + SET(ICON_INSTALL_DIR + "${DATA_INSTALL_PREFIX}/icons" + CACHE PATH "The icon install dir (default data/icons/)" + ) + SET(SOUND_INSTALL_DIR + "${DATA_INSTALL_PREFIX}/sounds" + CACHE PATH "The install dir for sound files (default data/sounds)" + ) + + SET(LOCALE_INSTALL_DIR + "${SHARE_INSTALL_PREFIX}/locale" + CACHE PATH "The install dir for translations (default prefix/share/locale)" + ) + + SET(XDG_APPS_DIR + "${SHARE_INSTALL_PREFIX}/applications/" + CACHE PATH "The XDG apps dir" + ) + SET(XDG_DIRECTORY_DIR + "${SHARE_INSTALL_PREFIX}/desktop-directories" + CACHE PATH "The XDG directory" + ) + + SET(SYSCONF_INSTALL_DIR + "${EXEC_INSTALL_PREFIX}/etc" + CACHE PATH "The ${APPLICATION_NAME} sysconfig install dir (default prefix/etc)" + ) + SET(MAN_INSTALL_DIR + "${SHARE_INSTALL_PREFIX}/man" + CACHE PATH "The ${APPLICATION_NAME} man install dir (default prefix/man)" + ) + SET(INFO_INSTALL_DIR + "${SHARE_INSTALL_PREFIX}/info" + CACHE PATH "The ${APPLICATION_NAME} info install dir (default prefix/info)" + ) +else() + # Same same + set(BIN_INSTALL_DIR "bin" CACHE PATH "-") + set(SBIN_INSTALL_DIR "sbin" CACHE PATH "-") + set(LIB_INSTALL_DIR "lib${LIB_SUFFIX}" CACHE PATH "-") + set(INCLUDE_INSTALL_DIR "include" CACHE PATH "-") + set(CMAKE_INSTALL_DIR "CMake" CACHE PATH "-") + set(PLUGIN_INSTALL_DIR "plugins" CACHE PATH "-") + set(HTML_INSTALL_DIR "doc/HTML" CACHE PATH "-") + set(ICON_INSTALL_DIR "icons" CACHE PATH "-") + set(SOUND_INSTALL_DIR "sounds" CACHE PATH "-") + set(LOCALE_INSTALL_DIR "lang" CACHE PATH "-") +endif () diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/DefinePlatformDefaults.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/DefinePlatformDefaults.cmake new file mode 100644 index 0000000..f36d9e6 --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/DefinePlatformDefaults.cmake @@ -0,0 +1,32 @@ +# Set system vars + +if (CMAKE_SYSTEM_NAME MATCHES "Linux") + set(LINUX TRUE) +endif(CMAKE_SYSTEM_NAME MATCHES "Linux") + +if (CMAKE_SYSTEM_NAME MATCHES "FreeBSD") + set(FREEBSD TRUE) + set(BSD TRUE) +endif (CMAKE_SYSTEM_NAME MATCHES "FreeBSD") + +if (CMAKE_SYSTEM_NAME MATCHES "OpenBSD") + set(OPENBSD TRUE) + set(BSD TRUE) +endif (CMAKE_SYSTEM_NAME MATCHES "OpenBSD") + +if (CMAKE_SYSTEM_NAME MATCHES "NetBSD") + set(NETBSD TRUE) + set(BSD TRUE) +endif (CMAKE_SYSTEM_NAME MATCHES "NetBSD") + +if (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)") + set(SOLARIS TRUE) +endif (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)") + +if (CMAKE_SYSTEM_NAME MATCHES "OS2") + set(OS2 TRUE) +endif (CMAKE_SYSTEM_NAME MATCHES "OS2") + +if (CMAKE_SYSTEM_NAME MATCHES "Darwin") + set(OSX TRUE) +endif (CMAKE_SYSTEM_NAME MATCHES "Darwin") diff --git a/tests/deckard/contrib/libswrap/cmake/Modules/MacroEnsureOutOfSourceBuild.cmake b/tests/deckard/contrib/libswrap/cmake/Modules/MacroEnsureOutOfSourceBuild.cmake new file mode 100644 index 0000000..a2e9480 --- /dev/null +++ b/tests/deckard/contrib/libswrap/cmake/Modules/MacroEnsureOutOfSourceBuild.cmake @@ -0,0 +1,17 @@ +# - MACRO_ENSURE_OUT_OF_SOURCE_BUILD(<errorMessage>) +# MACRO_ENSURE_OUT_OF_SOURCE_BUILD(<errorMessage>) + +# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +macro (MACRO_ENSURE_OUT_OF_SOURCE_BUILD _errorMessage) + + string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" _insource) + if (_insource) + message(SEND_ERROR "${_errorMessage}") + message(FATAL_ERROR "Remove the file CMakeCache.txt in ${CMAKE_SOURCE_DIR} first.") + endif (_insource) + +endmacro (MACRO_ENSURE_OUT_OF_SOURCE_BUILD) diff --git a/tests/deckard/contrib/libswrap/config.h.cmake b/tests/deckard/contrib/libswrap/config.h.cmake new file mode 100644 index 0000000..a9b8ce8 --- /dev/null +++ b/tests/deckard/contrib/libswrap/config.h.cmake @@ -0,0 +1,74 @@ +/* Name of package */ +#cmakedefine PACKAGE "${APPLICATION_NAME}" + +/* Version number of package */ +#cmakedefine VERSION "${APPLICATION_VERSION}" + +#cmakedefine LOCALEDIR "${LOCALE_INSTALL_DIR}" +#cmakedefine DATADIR "${DATADIR}" +#cmakedefine LIBDIR "${LIBDIR}" +#cmakedefine PLUGINDIR "${PLUGINDIR}" +#cmakedefine SYSCONFDIR "${SYSCONFDIR}" +#cmakedefine BINARYDIR "${BINARYDIR}" +#cmakedefine SOURCEDIR "${SOURCEDIR}" + +/************************** HEADER FILES *************************/ + +#cmakedefine HAVE_SYS_FILIO_H 1 +#cmakedefine HAVE_SYS_SIGNALFD_H 1 +#cmakedefine HAVE_SYS_EVENTFD_H 1 +#cmakedefine HAVE_SYS_TIMERFD_H 1 +#cmakedefine HAVE_GNU_LIB_NAMES_H 1 +#cmakedefine HAVE_RPC_RPC_H 1 + +/**************************** STRUCTS ****************************/ + +#cmakedefine HAVE_STRUCT_IN_PKTINFO 1 +#cmakedefine HAVE_STRUCT_IN6_PKTINFO 1 + +/************************ STRUCT MEMBERS *************************/ + +#cmakedefine HAVE_STRUCT_SOCKADDR_SA_LEN 1 +#cmakedefine HAVE_STRUCT_MSGHDR_MSG_CONTROL 1 + +/*************************** FUNCTIONS ***************************/ + +/* Define to 1 if you have the `getaddrinfo' function. */ +#cmakedefine HAVE_GETADDRINFO 1 +#cmakedefine HAVE_SIGNALFD 1 +#cmakedefine HAVE_EVENTFD 1 +#cmakedefine HAVE_TIMERFD_CREATE 1 +#cmakedefine HAVE_BINDRESVPORT 1 +#cmakedefine HAVE_ACCEPT4 1 +#cmakedefine HAVE_PLEDGE 1 + +#cmakedefine HAVE_ACCEPT_PSOCKLEN_T 1 +#cmakedefine HAVE_IOCTL_INT 1 +#cmakedefine HAVE_EVENTFD_UNSIGNED_INT 1 + +/*************************** LIBRARIES ***************************/ + +#cmakedefine HAVE_GETTIMEOFDAY_TZ 1 +#cmakedefine HAVE_GETTIMEOFDAY_TZ_VOID 1 + +/*************************** DATA TYPES***************************/ + +#cmakedefine SIZEOF_PID_T @SIZEOF_PID_T@ + +/**************************** OPTIONS ****************************/ + +#cmakedefine HAVE_GCC_THREAD_LOCAL_STORAGE 1 +#cmakedefine HAVE_DESTRUCTOR_ATTRIBUTE 1 +#cmakedefine HAVE_ADDRESS_SANITIZER_ATTRIBUTE 1 +#cmakedefine HAVE_SOCKADDR_STORAGE 1 +#cmakedefine HAVE_IPV6 1 +#cmakedefine HAVE_FUNCTION_ATTRIBUTE_FORMAT 1 + +#cmakedefine HAVE_APPLE 1 +#cmakedefine HAVE_LIBSOCKET 1 + +/*************************** ENDIAN *****************************/ + +/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most + significant byte first (like Motorola and SPARC, unlike Intel). */ +#cmakedefine WORDS_BIGENDIAN 1 diff --git a/tests/deckard/contrib/libswrap/doc/CMakeLists.txt b/tests/deckard/contrib/libswrap/doc/CMakeLists.txt new file mode 100644 index 0000000..57552d6 --- /dev/null +++ b/tests/deckard/contrib/libswrap/doc/CMakeLists.txt @@ -0,0 +1,4 @@ +install(FILES + socket_wrapper.1 + DESTINATION + ${MAN_INSTALL_DIR}/man1) diff --git a/tests/deckard/contrib/libswrap/doc/README b/tests/deckard/contrib/libswrap/doc/README new file mode 100644 index 0000000..dbe07f7 --- /dev/null +++ b/tests/deckard/contrib/libswrap/doc/README @@ -0,0 +1,3 @@ +The manpage is written with asciidoc. To generate the manpage use: + +a2x --doctype manpage --format manpage doc/socket_wrapper.1.txt diff --git a/tests/deckard/contrib/libswrap/doc/socket_wrapper.1 b/tests/deckard/contrib/libswrap/doc/socket_wrapper.1 new file mode 100644 index 0000000..c3cf835 --- /dev/null +++ b/tests/deckard/contrib/libswrap/doc/socket_wrapper.1 @@ -0,0 +1,204 @@ +'\" t +.\" Title: socket_wrapper +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 2015-08-11 +.\" Manual: \ \& +.\" Source: \ \& +.\" Language: English +.\" +.TH "SOCKET_WRAPPER" "1" "2015\-08\-11" "\ \&" "\ \&" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +socket_wrapper \- A library passing all socket communications through unix sockets\&. +.SH "SYNOPSIS" +.sp +LD_PRELOAD=libsocket_wrapper\&.so SOCKET_WRAPPER_DIR=/tmp/tmp\&.bQRELqDrhM SOCKET_WRAPPER_DEFAULT_IFACE=10 \fB\&./myapplication\fR +.SH "DESCRIPTION" +.sp +socket_wrapper aims to help client/server software development teams willing to gain full functional test coverage\&. It makes possible to run several instances of the full software stack on the same machine and perform locally functional testing of complex network configurations\&. +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Redirects all network communication to happen over unix sockets\&. +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Support for IPv4 and IPv6 socket and addressing emulation\&. +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Ablility to capture network traffic in pcap format\&. +.RE +.SH "ENVIRONMENT VARIABLES" +.PP +\fBSOCKET_WRAPPER_DIR\fR +.RS 4 +The user defines a directory where to put all the unix sockets using the envionment variable "SOCKET_WRAPPER_DIR=/path/to/socket_dir"\&. When a server opens a port or a client wants to connect, socket_wrapper will translate IP addresses to a special socket_wrapper name and look for the relevant unix socket in the SOCKET_WRAPPER_DIR\&. +.RE +.PP +\fBSOCKET_WRAPPER_DEFAULT_IFACE\fR +.RS 4 +Additionally, the default interface to be used by an application is defined with "SOCKET_WRAPPER_DEFAULT_IFACE=<ID>" where <ID> is between 2 and 254\&. This is analogous to use the IPv4 addresses "127\&.0\&.0\&.<ID>" or IPv6 addresses "fd00::5357:5f<IDx>" (where <IDx> is a hexadecimal presentation of <ID>)\&. You should always set the default interface\&. If you listen on INADDR_ANY then it will use the default interface to listen on\&. +.RE +.PP +\fBSOCKET_WRAPPER_PCAP_FILE\fR +.RS 4 +When debugging, it is often interesting to investigate the network traffic between the client and server within your application\&. If you define SOCKET_WRAPPER_PCAP_FILE=/path/to/file\&.pcap, socket_wrapper will dump all your network traffic to the specified file\&. After the test has been finished you\(cqre able to open the file for example with Wireshark\&. +.RE +.PP +\fBSOCKET_WRAPPER_MTU\fR +.RS 4 +With this variable you can change the MTU size\&. However we do not recomment to do that as the default size of 1500 byte is best for formatting PCAP files\&. +.RE +.sp +The minimum value you can set is 512 and the maximum 32768\&. +.PP +\fBSOCKET_WRAPPER_DEBUGLEVEL\fR +.RS 4 +If you need to see what is going on in socket_wrapper itself or try to find a bug, you can enable logging support in socket_wrapper if you built it with debug symbols\&. +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +0 = ERROR +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +1 = WARNING +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +2 = DEBUG +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +3 = TRACE +.RE +.RE +.SH "EXAMPLE" +.sp +.if n \{\ +.RS 4 +.\} +.nf +# Open a console and create a directory for the unix sockets\&. +$ mktemp \-d +/tmp/tmp\&.bQRELqDrhM +.fi +.if n \{\ +.RE +.\} +.sp +.if n \{\ +.RS 4 +.\} +.nf +# Then start nc to listen for network traffic using the temporary directory\&. +$ LD_PRELOAD=libsocket_wrapper\&.so \e + SOCKET_WRAPPER_DIR=/tmp/tmp\&.bQRELqDrhM \e + SOCKET_WRAPPER_DEFAULT_IFACE=10 nc \-v \-l 127\&.0\&.0\&.10 7 +.fi +.if n \{\ +.RE +.\} +.sp +.if n \{\ +.RS 4 +.\} +.nf +# (If nc, listens on 0\&.0\&.0\&.0 then listener will be open on 127\&.0\&.0\&.10 because +# it is the default interface) +.fi +.if n \{\ +.RE +.\} +.sp +.if n \{\ +.RS 4 +.\} +.nf +# Now open another console and start \*(Aqnc\*(Aq as a client to connect to the server: +$ LD_PRELOAD=libsocket_wrapper\&.so \e + SOCKET_WRAPPER_DIR=/tmp/tmp\&.bQRELqDrhM \e + SOCKET_WRAPPER_DEFAULT_IFACE=100 nc \-v 127\&.0\&.0\&.10 7 +.fi +.if n \{\ +.RE +.\} +.sp +.if n \{\ +.RS 4 +.\} +.nf +# (The client will use the address 127\&.0\&.0\&.100 when connecting to the server) +# Now you can type \*(AqHello!\*(Aq which will be sent to the server and should appear +# in the console output of the server\&. +.fi +.if n \{\ +.RE +.\} diff --git a/tests/deckard/contrib/libswrap/doc/socket_wrapper.1.txt b/tests/deckard/contrib/libswrap/doc/socket_wrapper.1.txt new file mode 100644 index 0000000..f4e82a8 --- /dev/null +++ b/tests/deckard/contrib/libswrap/doc/socket_wrapper.1.txt @@ -0,0 +1,95 @@ +socket_wrapper(1) +================= +:revdate: 2015-08-11 + +NAME +---- + +socket_wrapper - A library passing all socket communications through unix sockets. + +SYNOPSIS +-------- + +LD_PRELOAD=libsocket_wrapper.so SOCKET_WRAPPER_DIR=/tmp/tmp.bQRELqDrhM SOCKET_WRAPPER_DEFAULT_IFACE=10 *./myapplication* + +DESCRIPTION +----------- + +socket_wrapper aims to help client/server software development teams willing to +gain full functional test coverage. It makes possible to run several instances +of the full software stack on the same machine and perform locally functional +testing of complex network configurations. + +- Redirects all network communication to happen over unix sockets. +- Support for IPv4 and IPv6 socket and addressing emulation. +- Ablility to capture network traffic in pcap format. + +ENVIRONMENT VARIABLES +--------------------- + +*SOCKET_WRAPPER_DIR*:: + +The user defines a directory where to put all the unix sockets using the +envionment variable "SOCKET_WRAPPER_DIR=/path/to/socket_dir". When a server +opens a port or a client wants to connect, socket_wrapper will translate IP +addresses to a special socket_wrapper name and look for the relevant unix +socket in the SOCKET_WRAPPER_DIR. + +*SOCKET_WRAPPER_DEFAULT_IFACE*:: + +Additionally, the default interface to be used by an application is defined +with "SOCKET_WRAPPER_DEFAULT_IFACE=<ID>" where <ID> is between 2 and 254. This +is analogous to use the IPv4 addresses "127.0.0.<ID>" or IPv6 addresses +"fd00::5357:5f<IDx>" (where <IDx> is a hexadecimal presentation of <ID>). You +should always set the default interface. If you listen on INADDR_ANY then it +will use the default interface to listen on. + +*SOCKET_WRAPPER_PCAP_FILE*:: + +When debugging, it is often interesting to investigate the network traffic +between the client and server within your application. If you define +SOCKET_WRAPPER_PCAP_FILE=/path/to/file.pcap, socket_wrapper will dump all your +network traffic to the specified file. After the test has been finished you're +able to open the file for example with Wireshark. + +*SOCKET_WRAPPER_MTU*:: + +With this variable you can change the MTU size. However we do not recomment to +do that as the default size of 1500 byte is best for formatting PCAP files. + +The minimum value you can set is 512 and the maximum 32768. + +*SOCKET_WRAPPER_DEBUGLEVEL*:: + +If you need to see what is going on in socket_wrapper itself or try to find a +bug, you can enable logging support in socket_wrapper if you built it with +debug symbols. + +- 0 = ERROR +- 1 = WARNING +- 2 = DEBUG +- 3 = TRACE + +EXAMPLE +------- + + # Open a console and create a directory for the unix sockets. + $ mktemp -d + /tmp/tmp.bQRELqDrhM + + # Then start nc to listen for network traffic using the temporary directory. + $ LD_PRELOAD=libsocket_wrapper.so \ + SOCKET_WRAPPER_DIR=/tmp/tmp.bQRELqDrhM \ + SOCKET_WRAPPER_DEFAULT_IFACE=10 nc -v -l 127.0.0.10 7 + + # (If nc, listens on 0.0.0.0 then listener will be open on 127.0.0.10 because + # it is the default interface) + + # Now open another console and start 'nc' as a client to connect to the server: + $ LD_PRELOAD=libsocket_wrapper.so \ + SOCKET_WRAPPER_DIR=/tmp/tmp.bQRELqDrhM \ + SOCKET_WRAPPER_DEFAULT_IFACE=100 nc -v 127.0.0.10 7 + + # (The client will use the address 127.0.0.100 when connecting to the server) + # Now you can type 'Hello!' which will be sent to the server and should appear + # in the console output of the server. diff --git a/tests/deckard/contrib/libswrap/example/openssh.sh b/tests/deckard/contrib/libswrap/example/openssh.sh new file mode 100755 index 0000000..bb74f03 --- /dev/null +++ b/tests/deckard/contrib/libswrap/example/openssh.sh @@ -0,0 +1,66 @@ +#!/bin/bash + +SSH_DIRECTORY=$(mktemp -d /tmp/tmp.swrap.XXXXXXXX) +SERVER_ADDRESS="127.0.0.10" +mkdir ${SSH_DIRECTORY}/swrap + +cleanup_and_exit () { + trap EXIT + test -z "$1" && set 0 + + echo + echo "CLEANING UP" + echo + + kill -TERM $(< ${SSH_DIRECTORY}/sshd.pid) + rm -rf ${SSH_DIRECTORY} + + exit $1 +} + +# Setup exit handler +trap cleanup_and_exit SIGINT SIGTERM + +echo Generating ${SSH_DIRECTORY}/ssh_host_key. +ssh-keygen -t rsa1 -b 2048 -f ${SSH_DIRECTORY}/ssh_host_key -N '' 2>/dev/null +echo Generating ${SSH_DIRECTORY}/ssh_host_dsa_key. +ssh-keygen -t dsa -f ${SSH_DIRECTORY}/ssh_host_dsa_key -N '' 2>/dev/null +echo Generating ${SSH_DIRECTORY}/ssh_host_rsa_key. +ssh-keygen -t rsa -b 2048 -f ${SSH_DIRECTORY}/ssh_host_rsa_key -N '' 2>/dev/null +#echo Generating ${SSH_DIRECTORY}/ssh_host_ecdsa_key. +#ssh-keygen -t ecdsa -b 256 -f ${SSH_DIRECTORY}/ssh_host_ecdsa_key -N '' 2>/dev/null + +# Create sshd_config file +cat > ${SSH_DIRECTORY}/sshd_config << EOT +Port 22 +ListenAddress ${SERVER_ADDRESS} +HostKey ${SSH_DIRECTORY}/ssh_host_key +HostKey ${SSH_DIRECTORY}/ssh_host_rsa_key +HostKey ${SSH_DIRECTORY}/ssh_host_dsa_key +#HostKey ${SSH_DIRECTORY}/ssh_host_ecdsa_key +Subsystem sftp /usr/lib/ssh/sftp-server + +LogLevel DEBUG1 + +AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES +AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT +AcceptEnv LC_IDENTIFICATION LC_ALL + +PidFile ${SSH_DIRECTORY}/sshd.pid +EOT + +export SOCKET_WRAPPER_DIR="${SSH_DIRECTORY}/swrap" +export SOCKET_WRAPPER_DEFAULT_IFACE=11 + +echo +echo "Starting SSHD with SOCKET_WRAPPER_DIR=${SSH_DIRECTORY}/swrap ..." +DYLD_INSERT_LIBRARIES=libsocket_wrapper.dylib LD_PRELOAD=libsocket_wrapper.so /usr/sbin/sshd -f ${SSH_DIRECTORY}/sshd_config -e 2> ${SSH_DIRECTORY}/sshd_log || cleanup_and_exit 1 +echo "done" + +echo +echo "Connecting to the ${SERVER_ADDRESS} ssh server using ssh binary." +echo "You can check the sshd log file at ${SSH_DIRECTORY}/sshd_log." +echo "If you logout sshd will be stopped and the environment cleaned up." +DYLD_INSERT_LIBRARIES=libsocket_wrapper.dylib LD_PRELOAD=libsocket_wrapper.so ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no ${SERVER_ADDRESS} + +cleanup_and_exit 0 diff --git a/tests/deckard/contrib/libswrap/socket_wrapper-config-version.cmake.in b/tests/deckard/contrib/libswrap/socket_wrapper-config-version.cmake.in new file mode 100644 index 0000000..98f292c --- /dev/null +++ b/tests/deckard/contrib/libswrap/socket_wrapper-config-version.cmake.in @@ -0,0 +1,11 @@ +set(PACKAGE_VERSION @APPLICATION_VERSION@) + +# Check whether the requested PACKAGE_FIND_VERSION is compatible +if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}") + set(PACKAGE_VERSION_COMPATIBLE FALSE) +else() + set(PACKAGE_VERSION_COMPATIBLE TRUE) + if ("${PACKAGE_VERSION}" VERSION_EQUAL "${PACKAGE_FIND_VERSION}") + set(PACKAGE_VERSION_EXACT TRUE) + endif() +endif() diff --git a/tests/deckard/contrib/libswrap/socket_wrapper-config.cmake.in b/tests/deckard/contrib/libswrap/socket_wrapper-config.cmake.in new file mode 100644 index 0000000..7bedd79 --- /dev/null +++ b/tests/deckard/contrib/libswrap/socket_wrapper-config.cmake.in @@ -0,0 +1 @@ +set(SOCKET_WRAPPER_LIBRARY @LIB_INSTALL_DIR@/@SOCKET_WRAPPER_LIB@) diff --git a/tests/deckard/contrib/libswrap/socket_wrapper.pc.cmake b/tests/deckard/contrib/libswrap/socket_wrapper.pc.cmake new file mode 100644 index 0000000..6dc71f7 --- /dev/null +++ b/tests/deckard/contrib/libswrap/socket_wrapper.pc.cmake @@ -0,0 +1,4 @@ +Name: @APPLICATION_NAME@ +Description: The socket_wrapper library +Version: @APPLICATION_VERSION@ +Libs: @LIB_INSTALL_DIR@/@SOCKET_WRAPPER_LIB@ diff --git a/tests/deckard/contrib/libswrap/src/CMakeLists.txt b/tests/deckard/contrib/libswrap/src/CMakeLists.txt new file mode 100644 index 0000000..e5f2fbb --- /dev/null +++ b/tests/deckard/contrib/libswrap/src/CMakeLists.txt @@ -0,0 +1,26 @@ +project(libsocket_wrapper C) + +include_directories(${CMAKE_BINARY_DIR}) + +add_library(socket_wrapper SHARED socket_wrapper.c) + +target_link_libraries(socket_wrapper ${SWRAP_REQUIRED_LIBRARIES}) + +install( + TARGETS + socket_wrapper + RUNTIME DESTINATION ${BIN_INSTALL_DIR} + LIBRARY DESTINATION ${LIB_INSTALL_DIR} + ARCHIVE DESTINATION ${LIB_INSTALL_DIR} +) + +set_target_properties( + socket_wrapper + PROPERTIES + VERSION + ${LIBRARY_VERSION} + SOVERSION + ${LIBRARY_SOVERSION} +) + +set(SOCKET_WRAPPER_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_SHARED_LIBRARY_PREFIX}socket_wrapper${CMAKE_SHARED_LIBRARY_SUFFIX}" PARENT_SCOPE) diff --git a/tests/deckard/contrib/libswrap/src/socket_wrapper.c b/tests/deckard/contrib/libswrap/src/socket_wrapper.c new file mode 100644 index 0000000..bc4f4ab --- /dev/null +++ b/tests/deckard/contrib/libswrap/src/socket_wrapper.c @@ -0,0 +1,5475 @@ +/* + * Copyright (c) 2005-2008 Jelmer Vernooij <jelmer@samba.org> + * Copyright (C) 2006-2014 Stefan Metzmacher <metze@samba.org> + * Copyright (C) 2013-2014 Andreas Schneider <asn@samba.org> + * + * 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 author 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 AUTHOR 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 AUTHOR 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. + * + */ + +/* + Socket wrapper library. Passes all socket communication over + unix domain sockets if the environment variable SOCKET_WRAPPER_DIR + is set. +*/ + +#include "config.h" + +#include <sys/types.h> +#include <sys/time.h> +#include <sys/stat.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#ifdef HAVE_SYS_FILIO_H +#include <sys/filio.h> +#endif +#ifdef HAVE_SYS_SIGNALFD_H +#include <sys/signalfd.h> +#endif +#ifdef HAVE_SYS_EVENTFD_H +#include <sys/eventfd.h> +#endif +#ifdef HAVE_SYS_TIMERFD_H +#include <sys/timerfd.h> +#endif +#include <sys/uio.h> +#include <errno.h> +#include <sys/un.h> +#include <netinet/in.h> +#include <netinet/tcp.h> +#include <arpa/inet.h> +#include <fcntl.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <stdint.h> +#include <stdarg.h> +#include <stdbool.h> +#include <unistd.h> +#ifdef HAVE_GNU_LIB_NAMES_H +#include <gnu/lib-names.h> +#endif +#ifdef HAVE_RPC_RPC_H +#include <rpc/rpc.h> +#endif +#include <dirent.h> + +enum swrap_dbglvl_e { + SWRAP_LOG_ERROR = 0, + SWRAP_LOG_WARN, + SWRAP_LOG_DEBUG, + SWRAP_LOG_TRACE +}; + +/* GCC have printf type attribute check. */ +#ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT +#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b))) +#else +#define PRINTF_ATTRIBUTE(a,b) +#endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */ + +#ifdef HAVE_DESTRUCTOR_ATTRIBUTE +#define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor)) +#else +#define DESTRUCTOR_ATTRIBUTE +#endif + +#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE +#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address)) +#else +#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE +#endif + +#ifdef HAVE_GCC_THREAD_LOCAL_STORAGE +# define SWRAP_THREAD __thread +#else +# define SWRAP_THREAD +#endif + +#ifndef MIN +#define MIN(a,b) ((a)<(b)?(a):(b)) +#endif + +#ifndef ZERO_STRUCT +#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x)) +#endif + +#ifndef ZERO_STRUCTP +#define ZERO_STRUCTP(x) do { \ + if ((x) != NULL) \ + memset((char *)(x), 0, sizeof(*(x))); \ + } while(0) +#endif + +#ifndef discard_const +#define discard_const(ptr) ((void *)((uintptr_t)(ptr))) +#endif + +#ifndef discard_const_p +#define discard_const_p(type, ptr) ((type *)discard_const(ptr)) +#endif + +#ifdef IPV6_PKTINFO +# ifndef IPV6_RECVPKTINFO +# define IPV6_RECVPKTINFO IPV6_PKTINFO +# endif /* IPV6_RECVPKTINFO */ +#endif /* IPV6_PKTINFO */ + +/* + * On BSD IP_PKTINFO has a different name because during + * the time when they implemented it, there was no RFC. + * The name for IPv6 is the same as on Linux. + */ +#ifndef IP_PKTINFO +# ifdef IP_RECVDSTADDR +# define IP_PKTINFO IP_RECVDSTADDR +# endif +#endif + + +#define SWRAP_DLIST_ADD(list,item) do { \ + if (!(list)) { \ + (item)->prev = NULL; \ + (item)->next = NULL; \ + (list) = (item); \ + } else { \ + (item)->prev = NULL; \ + (item)->next = (list); \ + (list)->prev = (item); \ + (list) = (item); \ + } \ +} while (0) + +#define SWRAP_DLIST_REMOVE(list,item) do { \ + if ((list) == (item)) { \ + (list) = (item)->next; \ + if (list) { \ + (list)->prev = NULL; \ + } \ + } else { \ + if ((item)->prev) { \ + (item)->prev->next = (item)->next; \ + } \ + if ((item)->next) { \ + (item)->next->prev = (item)->prev; \ + } \ + } \ + (item)->prev = NULL; \ + (item)->next = NULL; \ +} while (0) + +#if defined(HAVE_GETTIMEOFDAY_TZ) || defined(HAVE_GETTIMEOFDAY_TZ_VOID) +#define swrapGetTimeOfDay(tval) gettimeofday(tval,NULL) +#else +#define swrapGetTimeOfDay(tval) gettimeofday(tval) +#endif + +/* we need to use a very terse format here as IRIX 6.4 silently + truncates names to 16 chars, so if we use a longer name then we + can't tell which port a packet came from with recvfrom() + + with this format we have 8 chars left for the directory name +*/ +#define SOCKET_FORMAT "%c%02X%04X" +#define SOCKET_TYPE_CHAR_TCP 'T' +#define SOCKET_TYPE_CHAR_UDP 'U' +#define SOCKET_TYPE_CHAR_TCP_V6 'X' +#define SOCKET_TYPE_CHAR_UDP_V6 'Y' + + +#define SOCKET_FORMAT_LONG "%c%08X%04X" +#define SOCKET_FORMAT_V6_LONG "%c%08X%08X%08X%08X%04X" + +#define SOCKET_TYPE_CHAR_TCP_LONG 'Q' +#define SOCKET_TYPE_CHAR_UDP_LONG 'W' +#define SOCKET_TYPE_CHAR_TCP_V6_LONG 'E' +#define SOCKET_TYPE_CHAR_UDP_V6_LONG 'R' + +/* + * Set the packet MTU to 1500 bytes for stream sockets to make it it easier to + * format PCAP capture files (as the caller will simply continue from here). + */ +#define SOCKET_WRAPPER_MTU_DEFAULT 1500 +#define SOCKET_WRAPPER_MTU_MIN 512 +#define SOCKET_WRAPPER_MTU_MAX 32768 + +#define SOCKET_MAX_SOCKETS 1024 + +/* This limit is to avoid broadcast sendto() needing to stat too many + * files. It may be raised (with a performance cost) to up to 254 + * without changing the format above */ +#define MAX_WRAPPED_INTERFACES 40 + +struct swrap_address { + socklen_t sa_socklen; + union { + struct sockaddr s; + struct sockaddr_in in; +#ifdef HAVE_IPV6 + struct sockaddr_in6 in6; +#endif + struct sockaddr_un un; + struct sockaddr_storage ss; + } sa; +}; + +struct socket_info_fd { + struct socket_info_fd *prev, *next; + int fd; +}; + +struct socket_info +{ + struct socket_info_fd *fds; + + int family; + int type; + int protocol; + int bound; + int bcast; + int is_server; + int connected; + int defer_connect; + int pktinfo; + int tcp_nodelay; + + /* The unix path so we can unlink it on close() */ + struct sockaddr_un un_addr; + + struct swrap_address bindname; + struct swrap_address myname; + struct swrap_address peername; + + struct { + unsigned long pck_snd; + unsigned long pck_rcv; + } io; + + struct socket_info *prev, *next; +}; + +/* + * File descriptors are shared between threads so we should share socket + * information too. + */ +struct socket_info *sockets; + +/* Function prototypes */ + +bool socket_wrapper_enabled(void); +void swrap_destructor(void) DESTRUCTOR_ATTRIBUTE; + +#ifdef NDEBUG +# define SWRAP_LOG(...) +#else + +static void swrap_log(enum swrap_dbglvl_e dbglvl, const char *func, const char *format, ...) PRINTF_ATTRIBUTE(3, 4); +# define SWRAP_LOG(dbglvl, ...) swrap_log((dbglvl), __func__, __VA_ARGS__) + +static void swrap_log(enum swrap_dbglvl_e dbglvl, + const char *func, + const char *format, ...) +{ + char buffer[1024]; + va_list va; + const char *d; + unsigned int lvl = 0; + + d = getenv("SOCKET_WRAPPER_DEBUGLEVEL"); + if (d != NULL) { + lvl = atoi(d); + } + + va_start(va, format); + vsnprintf(buffer, sizeof(buffer), format, va); + va_end(va); + + if (lvl >= dbglvl) { + switch (dbglvl) { + case SWRAP_LOG_ERROR: + fprintf(stderr, + "SWRAP_ERROR(%d) - %s: %s\n", + (int)getpid(), func, buffer); + break; + case SWRAP_LOG_WARN: + fprintf(stderr, + "SWRAP_WARN(%d) - %s: %s\n", + (int)getpid(), func, buffer); + break; + case SWRAP_LOG_DEBUG: + fprintf(stderr, + "SWRAP_DEBUG(%d) - %s: %s\n", + (int)getpid(), func, buffer); + break; + case SWRAP_LOG_TRACE: + fprintf(stderr, + "SWRAP_TRACE(%d) - %s: %s\n", + (int)getpid(), func, buffer); + break; + } + } +} +#endif + +/********************************************************* + * SWRAP LOADING LIBC FUNCTIONS + *********************************************************/ + +#include <dlfcn.h> + +struct swrap_libc_fns { +#ifdef HAVE_ACCEPT4 + int (*libc_accept4)(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen, + int flags); +#else + int (*libc_accept)(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen); +#endif + int (*libc_bind)(int sockfd, + const struct sockaddr *addr, + socklen_t addrlen); + int (*libc_close)(int fd); + int (*libc_connect)(int sockfd, + const struct sockaddr *addr, + socklen_t addrlen); + int (*libc_dup)(int fd); + int (*libc_dup2)(int oldfd, int newfd); + int (*libc_fcntl)(int fd, int cmd, ...); + FILE *(*libc_fopen)(const char *name, const char *mode); +#ifdef HAVE_EVENTFD + int (*libc_eventfd)(int count, int flags); +#endif + int (*libc_getpeername)(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen); + int (*libc_getsockname)(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen); + int (*libc_getsockopt)(int sockfd, + int level, + int optname, + void *optval, + socklen_t *optlen); + int (*libc_ioctl)(int d, unsigned long int request, ...); + int (*libc_listen)(int sockfd, int backlog); + int (*libc_open)(const char *pathname, int flags, mode_t mode); + int (*libc_pipe)(int pipefd[2]); + int (*libc_read)(int fd, void *buf, size_t count); + ssize_t (*libc_readv)(int fd, const struct iovec *iov, int iovcnt); + int (*libc_recv)(int sockfd, void *buf, size_t len, int flags); + int (*libc_recvfrom)(int sockfd, + void *buf, + size_t len, + int flags, + struct sockaddr *src_addr, + socklen_t *addrlen); + int (*libc_recvmsg)(int sockfd, const struct msghdr *msg, int flags); + int (*libc_send)(int sockfd, const void *buf, size_t len, int flags); + int (*libc_sendmsg)(int sockfd, const struct msghdr *msg, int flags); + int (*libc_sendto)(int sockfd, + const void *buf, + size_t len, + int flags, + const struct sockaddr *dst_addr, + socklen_t addrlen); + int (*libc_setsockopt)(int sockfd, + int level, + int optname, + const void *optval, + socklen_t optlen); +#ifdef HAVE_SIGNALFD + int (*libc_signalfd)(int fd, const sigset_t *mask, int flags); +#endif + int (*libc_socket)(int domain, int type, int protocol); + int (*libc_socketpair)(int domain, int type, int protocol, int sv[2]); +#ifdef HAVE_TIMERFD_CREATE + int (*libc_timerfd_create)(int clockid, int flags); +#endif + ssize_t (*libc_write)(int fd, const void *buf, size_t count); + ssize_t (*libc_writev)(int fd, const struct iovec *iov, int iovcnt); +}; + +struct swrap { + void *libc_handle; + void *libsocket_handle; + + bool initialised; + bool enabled; + + char *socket_dir; + + struct swrap_libc_fns fns; +}; + +static struct swrap swrap; + +/* prototypes */ +static const char *socket_wrapper_dir(void); + +#define LIBC_NAME "libc.so" + +enum swrap_lib { + SWRAP_LIBC, + SWRAP_LIBNSL, + SWRAP_LIBSOCKET, +}; + +#ifndef NDEBUG +static const char *swrap_str_lib(enum swrap_lib lib) +{ + switch (lib) { + case SWRAP_LIBC: + return "libc"; + case SWRAP_LIBNSL: + return "libnsl"; + case SWRAP_LIBSOCKET: + return "libsocket"; + } + + /* Compiler would warn us about unhandled enum value if we get here */ + return "unknown"; +} +#endif + +static void *swrap_load_lib_handle(enum swrap_lib lib) +{ + int flags = RTLD_LAZY; + void *handle = NULL; + int i; + +#ifdef RTLD_DEEPBIND + flags |= RTLD_DEEPBIND; +#endif + + switch (lib) { + case SWRAP_LIBNSL: + /* FALL TROUGH */ + case SWRAP_LIBSOCKET: +#ifdef HAVE_LIBSOCKET + handle = swrap.libsocket_handle; + if (handle == NULL) { + for (i = 10; i >= 0; i--) { + char soname[256] = {0}; + + snprintf(soname, sizeof(soname), "libsocket.so.%d", i); + handle = dlopen(soname, flags); + if (handle != NULL) { + break; + } + } + + swrap.libsocket_handle = handle; + } + break; +#endif + /* FALL TROUGH */ + case SWRAP_LIBC: + handle = swrap.libc_handle; +#ifdef LIBC_SO + if (handle == NULL) { + handle = dlopen(LIBC_SO, flags); + + swrap.libc_handle = handle; + } +#endif + if (handle == NULL) { + for (i = 10; i >= 0; i--) { + char soname[256] = {0}; + + snprintf(soname, sizeof(soname), "libc.so.%d", i); + handle = dlopen(soname, flags); + if (handle != NULL) { + break; + } + } + + swrap.libc_handle = handle; + } + break; + } + + if (handle == NULL) { +#ifdef RTLD_NEXT + handle = swrap.libc_handle = swrap.libsocket_handle = RTLD_NEXT; +#else + SWRAP_LOG(SWRAP_LOG_ERROR, + "Failed to dlopen library: %s\n", + dlerror()); + exit(-1); +#endif + } + + return handle; +} + +static void *_swrap_load_lib_function(enum swrap_lib lib, const char *fn_name) +{ + void *handle; + void *func; + + handle = swrap_load_lib_handle(lib); + + func = dlsym(handle, fn_name); + if (func == NULL) { + SWRAP_LOG(SWRAP_LOG_ERROR, + "Failed to find %s: %s\n", + fn_name, dlerror()); + exit(-1); + } + + SWRAP_LOG(SWRAP_LOG_TRACE, + "Loaded %s from %s", + fn_name, swrap_str_lib(lib)); + return func; +} + +#define swrap_load_lib_function(lib, fn_name) \ + if (swrap.fns.libc_##fn_name == NULL) { \ + void *swrap_cast_ptr = _swrap_load_lib_function(lib, #fn_name); \ + *(void **) (&swrap.fns.libc_##fn_name) = \ + swrap_cast_ptr; \ + } + + +/* + * IMPORTANT + * + * Functions especially from libc need to be loaded individually, you can't load + * all at once or gdb will segfault at startup. The same applies to valgrind and + * has probably something todo with with the linker. + * So we need load each function at the point it is called the first time. + */ +#ifdef HAVE_ACCEPT4 +static int libc_accept4(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen, + int flags) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, accept4); + + return swrap.fns.libc_accept4(sockfd, addr, addrlen, flags); +} + +#else /* HAVE_ACCEPT4 */ + +static int libc_accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, accept); + + return swrap.fns.libc_accept(sockfd, addr, addrlen); +} +#endif /* HAVE_ACCEPT4 */ + +static int libc_bind(int sockfd, + const struct sockaddr *addr, + socklen_t addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, bind); + + return swrap.fns.libc_bind(sockfd, addr, addrlen); +} + +static int libc_close(int fd) +{ + swrap_load_lib_function(SWRAP_LIBC, close); + + return swrap.fns.libc_close(fd); +} + +static int libc_connect(int sockfd, + const struct sockaddr *addr, + socklen_t addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, connect); + + return swrap.fns.libc_connect(sockfd, addr, addrlen); +} + +static int libc_dup(int fd) +{ + swrap_load_lib_function(SWRAP_LIBC, dup); + + return swrap.fns.libc_dup(fd); +} + +static int libc_dup2(int oldfd, int newfd) +{ + swrap_load_lib_function(SWRAP_LIBC, dup2); + + return swrap.fns.libc_dup2(oldfd, newfd); +} + +#ifdef HAVE_EVENTFD +static int libc_eventfd(int count, int flags) +{ + swrap_load_lib_function(SWRAP_LIBC, eventfd); + + return swrap.fns.libc_eventfd(count, flags); +} +#endif + +DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE +static int libc_vfcntl(int fd, int cmd, va_list ap) +{ + long int args[4]; + int rc; + int i; + + swrap_load_lib_function(SWRAP_LIBC, fcntl); + + for (i = 0; i < 4; i++) { + args[i] = va_arg(ap, long int); + } + + rc = swrap.fns.libc_fcntl(fd, + cmd, + args[0], + args[1], + args[2], + args[3]); + + return rc; +} + +static int libc_getpeername(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, getpeername); + + return swrap.fns.libc_getpeername(sockfd, addr, addrlen); +} + +static int libc_getsockname(int sockfd, + struct sockaddr *addr, + socklen_t *addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, getsockname); + + return swrap.fns.libc_getsockname(sockfd, addr, addrlen); +} + +static int libc_getsockopt(int sockfd, + int level, + int optname, + void *optval, + socklen_t *optlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, getsockopt); + + return swrap.fns.libc_getsockopt(sockfd, level, optname, optval, optlen); +} + +DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE +static int libc_vioctl(int d, unsigned long int request, va_list ap) +{ + long int args[4]; + int rc; + int i; + + swrap_load_lib_function(SWRAP_LIBC, ioctl); + + for (i = 0; i < 4; i++) { + args[i] = va_arg(ap, long int); + } + + rc = swrap.fns.libc_ioctl(d, + request, + args[0], + args[1], + args[2], + args[3]); + + return rc; +} + +static int libc_listen(int sockfd, int backlog) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, listen); + + return swrap.fns.libc_listen(sockfd, backlog); +} + +static FILE *libc_fopen(const char *name, const char *mode) +{ + swrap_load_lib_function(SWRAP_LIBC, fopen); + + return swrap.fns.libc_fopen(name, mode); +} + +static int libc_vopen(const char *pathname, int flags, va_list ap) +{ + long int mode = 0; + int fd; + + swrap_load_lib_function(SWRAP_LIBC, open); + + mode = va_arg(ap, long int); + + fd = swrap.fns.libc_open(pathname, flags, (mode_t)mode); + + return fd; +} + +static int libc_open(const char *pathname, int flags, ...) +{ + va_list ap; + int fd; + + va_start(ap, flags); + fd = libc_vopen(pathname, flags, ap); + va_end(ap); + + return fd; +} + +static int libc_pipe(int pipefd[2]) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, pipe); + + return swrap.fns.libc_pipe(pipefd); +} + +static int libc_read(int fd, void *buf, size_t count) +{ + swrap_load_lib_function(SWRAP_LIBC, read); + + return swrap.fns.libc_read(fd, buf, count); +} + +static ssize_t libc_readv(int fd, const struct iovec *iov, int iovcnt) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, readv); + + return swrap.fns.libc_readv(fd, iov, iovcnt); +} + +static int libc_recv(int sockfd, void *buf, size_t len, int flags) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, recv); + + return swrap.fns.libc_recv(sockfd, buf, len, flags); +} + +static int libc_recvfrom(int sockfd, + void *buf, + size_t len, + int flags, + struct sockaddr *src_addr, + socklen_t *addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, recvfrom); + + return swrap.fns.libc_recvfrom(sockfd, buf, len, flags, src_addr, addrlen); +} + +static int libc_recvmsg(int sockfd, struct msghdr *msg, int flags) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, recvmsg); + + return swrap.fns.libc_recvmsg(sockfd, msg, flags); +} + +static int libc_send(int sockfd, const void *buf, size_t len, int flags) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, send); + + return swrap.fns.libc_send(sockfd, buf, len, flags); +} + +static int libc_sendmsg(int sockfd, const struct msghdr *msg, int flags) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, sendmsg); + + return swrap.fns.libc_sendmsg(sockfd, msg, flags); +} + +static int libc_sendto(int sockfd, + const void *buf, + size_t len, + int flags, + const struct sockaddr *dst_addr, + socklen_t addrlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, sendto); + + return swrap.fns.libc_sendto(sockfd, buf, len, flags, dst_addr, addrlen); +} + +static int libc_setsockopt(int sockfd, + int level, + int optname, + const void *optval, + socklen_t optlen) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, setsockopt); + + return swrap.fns.libc_setsockopt(sockfd, level, optname, optval, optlen); +} + +#ifdef HAVE_SIGNALFD +static int libc_signalfd(int fd, const sigset_t *mask, int flags) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, signalfd); + + return swrap.fns.libc_signalfd(fd, mask, flags); +} +#endif + +static int libc_socket(int domain, int type, int protocol) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, socket); + + return swrap.fns.libc_socket(domain, type, protocol); +} + +static int libc_socketpair(int domain, int type, int protocol, int sv[2]) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, socketpair); + + return swrap.fns.libc_socketpair(domain, type, protocol, sv); +} + +#ifdef HAVE_TIMERFD_CREATE +static int libc_timerfd_create(int clockid, int flags) +{ + swrap_load_lib_function(SWRAP_LIBC, timerfd_create); + + return swrap.fns.libc_timerfd_create(clockid, flags); +} +#endif + +static ssize_t libc_write(int fd, const void *buf, size_t count) +{ + swrap_load_lib_function(SWRAP_LIBC, write); + + return swrap.fns.libc_write(fd, buf, count); +} + +static ssize_t libc_writev(int fd, const struct iovec *iov, int iovcnt) +{ + swrap_load_lib_function(SWRAP_LIBSOCKET, writev); + + return swrap.fns.libc_writev(fd, iov, iovcnt); +} + +/********************************************************* + * SWRAP HELPER FUNCTIONS + *********************************************************/ + +#ifdef HAVE_IPV6 +/* + * FD00::5357:5FXX + */ +static const struct in6_addr *swrap_ipv6(void) +{ + static struct in6_addr v; + static int initialized; + int ret; + + if (initialized) { + return &v; + } + initialized = 1; + + ret = inet_pton(AF_INET6, "FD00::5357:5F00", &v); + if (ret <= 0) { + abort(); + } + + return &v; +} +static struct in6_addr swrap_make_ipv6(unsigned int a0, unsigned int a1, + unsigned int a2, unsigned int a3) +{ + struct in6_addr v; + int i; + for (i = 0 ; i < 4; i++) + { + v.s6_addr[ 0 + i] = a0; + v.s6_addr[ 4 + i] = a1; + v.s6_addr[ 8 + i] = a2; + v.s6_addr[12 + i] = a3; + a0 >>= 8; + a1 >>= 8; + a2 >>= 8; + a3 >>= 8; + } + return v; +} +static void swrap_make_ipv6_ints(const unsigned char s[16], unsigned int *a0, unsigned int *a1, + unsigned int *a2, unsigned int *a3) +{ + int i; + + *a0 = 0; *a1 = 0; *a2 = 0; *a3 = 0; + for (i = 3 ; i > 0; i--) + { + *a0 += s[ 0 + i]; + *a1 += s[ 4 + i]; + *a2 += s[ 8 + i]; + *a3 += s[12 + i]; + *a0 <<= 8; + *a1 <<= 8; + *a2 <<= 8; + *a3 <<= 8; + } + *a0 += s[ 0]; + *a1 += s[ 4]; + *a2 += s[ 8]; + *a3 += s[12]; +} + +#endif + +static void set_port(int family, int prt, struct swrap_address *addr) +{ + switch (family) { + case AF_INET: + addr->sa.in.sin_port = htons(prt); + break; +#ifdef HAVE_IPV6 + case AF_INET6: + addr->sa.in6.sin6_port = htons(prt); + break; +#endif + } +} + +static size_t socket_length(int family) +{ + switch (family) { + case AF_INET: + return sizeof(struct sockaddr_in); +#ifdef HAVE_IPV6 + case AF_INET6: + return sizeof(struct sockaddr_in6); +#endif + } + return 0; +} + +static const char *socket_wrapper_dir(void) +{ + const char *s = getenv("SOCKET_WRAPPER_DIR"); + if (s == NULL) { + return NULL; + } + /* TODO use realpath(3) here, when we add support for threads */ + if (strncmp(s, "./", 2) == 0) { + s += 2; + } + + SWRAP_LOG(SWRAP_LOG_TRACE, "socket_wrapper_dir: %s", s); + return s; +} + +static unsigned int socket_wrapper_mtu(void) +{ + static unsigned int max_mtu = 0; + unsigned int tmp; + const char *s; + char *endp; + + if (max_mtu != 0) { + return max_mtu; + } + + max_mtu = SOCKET_WRAPPER_MTU_DEFAULT; + + s = getenv("SOCKET_WRAPPER_MTU"); + if (s == NULL) { + goto done; + } + + tmp = strtol(s, &endp, 10); + if (s == endp) { + goto done; + } + + if (tmp < SOCKET_WRAPPER_MTU_MIN || tmp > SOCKET_WRAPPER_MTU_MAX) { + goto done; + } + max_mtu = tmp; + +done: + return max_mtu; +} + +bool socket_wrapper_enabled(void) +{ + const char *s = socket_wrapper_dir(); + + return s != NULL ? true : false; +} + +static unsigned int socket_wrapper_default_iface(void) +{ + const char *s = getenv("SOCKET_WRAPPER_DEFAULT_IFACE"); + if (s) { + unsigned int iface; + if (sscanf(s, "%u", &iface) == 1) { + if (iface >= 1 && iface <= MAX_WRAPPED_INTERFACES) { + return iface; + } + } + } + + return 1;/* 127.0.0.1 */ +} + +static unsigned int socket_wrapper_default_addr(void) +{ + const char *s = getenv("SOCKET_WRAPPER_DEFAULT_IFACE"); + if (s) { + unsigned int iface; + if (sscanf(s, "%u", &iface) == 1) { + if (iface >= 1 && iface <= MAX_WRAPPED_INTERFACES) { + return (127<<24) | iface; + } + } + } + return (127<<24) | 0x00000001; /* 127.0.0.1 */ +} + +static int convert_un_in(const struct sockaddr_un *un, struct sockaddr *in, socklen_t *len) +{ + unsigned int prt; + const char *p; + char type; + + p = strrchr(un->sun_path, '/'); + if (p) p++; else p = un->sun_path; + + type = p[0]; + + + switch(type) { + case SOCKET_TYPE_CHAR_TCP_LONG: + case SOCKET_TYPE_CHAR_UDP_LONG: { + unsigned int in4_addr; + struct sockaddr_in *in2 = (struct sockaddr_in *)(void *)in; + + if ((*len) < sizeof(*in2)) { + errno = EINVAL; + return -1; + } + + if (sscanf(p, SOCKET_FORMAT_LONG, &type, &in4_addr, &prt) != 3) { + errno = EINVAL; + return -1; + } + + if (prt > 0xFFFF) { + errno = EINVAL; + return -1; + } + + memset(in2, 0, sizeof(*in2)); + in2->sin_family = AF_INET; + in2->sin_addr.s_addr = htonl(in4_addr); + in2->sin_port = htons(prt); + + *len = sizeof(*in2); + break; + } +#ifdef HAVE_IPV6 + case SOCKET_TYPE_CHAR_TCP_V6_LONG: + case SOCKET_TYPE_CHAR_UDP_V6_LONG: { + unsigned int in6_a0, in6_a1, in6_a2, in6_a3; + struct sockaddr_in6 *in2 = (struct sockaddr_in6 *)(void *)in; + + if (sscanf(p, SOCKET_FORMAT_V6_LONG, &type, + &in6_a0, &in6_a1, &in6_a2, &in6_a3, &prt) != 6) { + errno = EINVAL; + return -1; + } + + if ((*len) < sizeof(*in2)) { + errno = EINVAL; + return -1; + } + + memset(in2, 0, sizeof(*in2)); + in2->sin6_family = AF_INET6; + in2->sin6_addr = swrap_make_ipv6(in6_a0,in6_a1,in6_a2,in6_a3); + in2->sin6_port = htons(prt); + + *len = sizeof(*in2); + break; + } +#endif + default: + errno = EINVAL; + return -1; + } + + return 0; +} + +static int convert_in_un_remote(struct socket_info *si, const struct sockaddr *inaddr, struct sockaddr_un *un, + int *bcast) +{ + char type = '\0'; + unsigned int prt; + unsigned int in4_addr, in6_a0, in6_a1, in6_a2, in6_a3; + int is_bcast = 0; + + if (bcast) *bcast = 0; + + switch (inaddr->sa_family) { + case AF_INET: { + const struct sockaddr_in *in = + (const struct sockaddr_in *)(const void *)inaddr; + unsigned int addr = ntohl(in->sin_addr.s_addr); + char u_type = '\0'; + char b_type = '\0'; + char a_type = '\0'; + + switch (si->type) { + case SOCK_STREAM: + u_type = SOCKET_TYPE_CHAR_TCP_LONG; + break; + case SOCK_DGRAM: + u_type = SOCKET_TYPE_CHAR_UDP_LONG; + a_type = SOCKET_TYPE_CHAR_UDP_LONG; + b_type = SOCKET_TYPE_CHAR_UDP_LONG; + break; + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown socket type!\n"); + errno = ESOCKTNOSUPPORT; + return -1; + } + + prt = ntohs(in->sin_port); + if (a_type && addr == 0xFFFFFFFF) { + /* 255.255.255.255 only udp */ + is_bcast = 2; + type = a_type; + in4_addr = socket_wrapper_default_addr(); + } else if (b_type && addr == 0x7FFFFFFF) { + /* 127.255.255.255 only udp */ + is_bcast = 1; + type = b_type; + in4_addr = socket_wrapper_default_addr(); + } else { + is_bcast = 0; + type = u_type; + in4_addr = addr; + } + if (bcast) *bcast = is_bcast; + break; + } +#ifdef HAVE_IPV6 + case AF_INET6: { + const struct sockaddr_in6 *in = + (const struct sockaddr_in6 *)(const void *)inaddr; + + switch (si->type) { + case SOCK_STREAM: + type = SOCKET_TYPE_CHAR_TCP_V6_LONG; + break; + case SOCK_DGRAM: + type = SOCKET_TYPE_CHAR_UDP_V6_LONG; + break; + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown socket type!\n"); + errno = ESOCKTNOSUPPORT; + return -1; + } + + /* XXX no multicast/broadcast */ + + prt = ntohs(in->sin6_port); + + /* TODO - More checks */ + + swrap_make_ipv6_ints(in->sin6_addr.s6_addr,&in6_a0,&in6_a1,&in6_a2,&in6_a3); + break; + } +#endif + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown address family!\n"); + errno = ENETUNREACH; + return -1; + } + + if (prt == 0) { + SWRAP_LOG(SWRAP_LOG_WARN, "Port not set\n"); + errno = EINVAL; + return -1; + } + + if (is_bcast) { + snprintf(un->sun_path, sizeof(un->sun_path), "%s/EINVAL", + socket_wrapper_dir()); + SWRAP_LOG(SWRAP_LOG_DEBUG, "un path [%s]", un->sun_path); + /* the caller need to do more processing */ + return 0; + } + + switch (inaddr->sa_family) { + case AF_INET: + snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT_LONG, + socket_wrapper_dir(), type, in4_addr, prt); + break; + case AF_INET6: + snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT_V6_LONG, + socket_wrapper_dir(), type, in6_a0, in6_a1, in6_a2, in6_a3, prt); + break; + } + SWRAP_LOG(SWRAP_LOG_DEBUG, "un path [%s]", un->sun_path); + + return 0; +} + +static int convert_in_un_alloc(struct socket_info *si, const struct sockaddr *inaddr, struct sockaddr_un *un, + int *bcast) +{ + char type = '\0'; + unsigned int prt; + unsigned int in4_addr, in6_a0, in6_a1, in6_a2, in6_a3; + struct stat st; + int is_bcast = 0; + + if (bcast) *bcast = 0; + + switch (si->family) { + case AF_INET: { + const struct sockaddr_in *in = + (const struct sockaddr_in *)(const void *)inaddr; + unsigned int addr = ntohl(in->sin_addr.s_addr); + char u_type = '\0'; + char d_type = '\0'; + char b_type = '\0'; + char a_type = '\0'; + + prt = ntohs(in->sin_port); + + switch (si->type) { + case SOCK_STREAM: + u_type = SOCKET_TYPE_CHAR_TCP_LONG; + d_type = SOCKET_TYPE_CHAR_TCP_LONG; + break; + case SOCK_DGRAM: + u_type = SOCKET_TYPE_CHAR_UDP_LONG; + d_type = SOCKET_TYPE_CHAR_UDP_LONG; + a_type = SOCKET_TYPE_CHAR_UDP_LONG; + b_type = SOCKET_TYPE_CHAR_UDP_LONG; + break; + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown socket type!\n"); + errno = ESOCKTNOSUPPORT; + return -1; + } + + if (addr == 0) { + /* 0.0.0.0 */ + is_bcast = 0; + type = d_type; + in4_addr = socket_wrapper_default_addr(); + } else if (a_type && addr == 0xFFFFFFFF) { + /* 255.255.255.255 only udp */ + is_bcast = 2; + type = a_type; + in4_addr = socket_wrapper_default_addr(); + } else if (b_type && addr == 0x7FFFFFFF) { + /* 127.255.255.255 only udp */ + is_bcast = 1; + type = b_type; + in4_addr = socket_wrapper_default_addr(); + } else { + /* 127.0.0.X */ + is_bcast = 0; + type = u_type; + in4_addr = addr; + } + + /* Store the bind address for connect() */ + if (si->bindname.sa_socklen == 0) { + struct sockaddr_in bind_in; + socklen_t blen = sizeof(struct sockaddr_in); + + ZERO_STRUCT(bind_in); + bind_in.sin_family = in->sin_family; + bind_in.sin_port = in->sin_port; + bind_in.sin_addr.s_addr = htonl(in4_addr); + + si->bindname.sa_socklen = blen; + memcpy(&si->bindname.sa.in, &bind_in, blen); + } + + break; + } +#ifdef HAVE_IPV6 + case AF_INET6: { + const struct sockaddr_in6 *in = + (const struct sockaddr_in6 *)(const void *)inaddr; + struct sockaddr_in6 in6_addr = *in; + + switch (si->type) { + case SOCK_STREAM: + type = SOCKET_TYPE_CHAR_TCP_V6_LONG; + break; + case SOCK_DGRAM: + type = SOCKET_TYPE_CHAR_UDP_V6_LONG; + break; + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown socket type!\n"); + errno = ESOCKTNOSUPPORT; + return -1; + } + + /* XXX no multicast/broadcast */ + + prt = ntohs(in->sin6_port); + + /* TODO - More checks */ + + if (IN6_IS_ADDR_UNSPECIFIED(&in->sin6_addr)) { + in6_addr.sin6_addr = *swrap_ipv6(); + in6_addr.sin6_addr.s6_addr[15] = socket_wrapper_default_iface(); + } + + swrap_make_ipv6_ints(in6_addr.sin6_addr.s6_addr,&in6_a0,&in6_a1,&in6_a2,&in6_a3); + + /* Store the bind address for connect() */ + if (si->bindname.sa_socklen == 0) { + struct sockaddr_in6 bind_in; + socklen_t blen = sizeof(struct sockaddr_in6); + + ZERO_STRUCT(bind_in); + bind_in.sin6_family = in6_addr.sin6_family; + bind_in.sin6_port = in6_addr.sin6_port; + + bind_in.sin6_addr = in6_addr.sin6_addr; + + memcpy(&si->bindname.sa.in6, &bind_in, blen); + si->bindname.sa_socklen = blen; + } + + break; + } +#endif + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown address family\n"); + errno = EADDRNOTAVAIL; + return -1; + } + + + if (bcast) *bcast = is_bcast; + + + if (prt == 0) { + /* handle auto-allocation of ephemeral ports */ + for (prt = 5001; prt < 10000; prt++) { + if (si->family == AF_INET) + snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT_LONG, + socket_wrapper_dir(), type, in4_addr, prt); + else + snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT_V6_LONG, + socket_wrapper_dir(), type, in6_a0,in6_a1, in6_a2, in6_a3, prt); + + if (stat(un->sun_path, &st) == 0) continue; + + set_port(si->family, prt, &si->myname); + set_port(si->family, prt, &si->bindname); + + break; + } + if (prt == 10000) { + errno = ENFILE; + return -1; + } + } + + if (si->family == AF_INET) + snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT_LONG, + socket_wrapper_dir(), type, in4_addr, prt); + else + snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT_V6_LONG, + socket_wrapper_dir(), type, in6_a0,in6_a1, in6_a2, in6_a3, prt); + SWRAP_LOG(SWRAP_LOG_DEBUG, "un path [%s]", un->sun_path); + return 0; +} + +static struct socket_info *find_socket_info(int fd) +{ + struct socket_info *i; + + for (i = sockets; i; i = i->next) { + struct socket_info_fd *f; + for (f = i->fds; f; f = f->next) { + if (f->fd == fd) { + return i; + } + } + } + + return NULL; +} + +#if 0 /* FIXME */ +static bool check_addr_port_in_use(const struct sockaddr *sa, socklen_t len) +{ + struct socket_info *s; + + /* first catch invalid input */ + switch (sa->sa_family) { + case AF_INET: + if (len < sizeof(struct sockaddr_in)) { + return false; + } + break; +#if HAVE_IPV6 + case AF_INET6: + if (len < sizeof(struct sockaddr_in6)) { + return false; + } + break; +#endif + default: + return false; + break; + } + + for (s = sockets; s != NULL; s = s->next) { + if (s->myname == NULL) { + continue; + } + if (s->myname->sa_family != sa->sa_family) { + continue; + } + switch (s->myname->sa_family) { + case AF_INET: { + struct sockaddr_in *sin1, *sin2; + + sin1 = (struct sockaddr_in *)s->myname; + sin2 = (struct sockaddr_in *)sa; + + if (sin1->sin_addr.s_addr == htonl(INADDR_ANY)) { + continue; + } + if (sin1->sin_port != sin2->sin_port) { + continue; + } + if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) { + continue; + } + + /* found */ + return true; + break; + } +#if HAVE_IPV6 + case AF_INET6: { + struct sockaddr_in6 *sin1, *sin2; + + sin1 = (struct sockaddr_in6 *)s->myname; + sin2 = (struct sockaddr_in6 *)sa; + + if (sin1->sin6_port != sin2->sin6_port) { + continue; + } + if (!IN6_ARE_ADDR_EQUAL(&sin1->sin6_addr, + &sin2->sin6_addr)) + { + continue; + } + + /* found */ + return true; + break; + } +#endif + default: + continue; + break; + + } + } + + return false; +} +#endif + +static void swrap_remove_stale(int fd) +{ + struct socket_info *si = find_socket_info(fd); + struct socket_info_fd *fi; + + if (si != NULL) { + for (fi = si->fds; fi; fi = fi->next) { + if (fi->fd == fd) { + SWRAP_LOG(SWRAP_LOG_TRACE, "remove stale wrapper for %d", fd); + SWRAP_DLIST_REMOVE(si->fds, fi); + free(fi); + break; + } + } + + if (si->fds == NULL) { + SWRAP_DLIST_REMOVE(sockets, si); + if (si->un_addr.sun_path[0] != '\0') { + unlink(si->un_addr.sun_path); + } + free(si); + } + } +} + +static int sockaddr_convert_to_un(struct socket_info *si, + const struct sockaddr *in_addr, + socklen_t in_len, + struct sockaddr_un *out_addr, + int alloc_sock, + int *bcast) +{ + struct sockaddr *out = (struct sockaddr *)(void *)out_addr; + + (void) in_len; /* unused */ + + if (out_addr == NULL) { + return 0; + } + + out->sa_family = AF_UNIX; +#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN + out->sa_len = sizeof(*out_addr); +#endif + + switch (in_addr->sa_family) { + case AF_UNSPEC: { + const struct sockaddr_in *sin; + if (si->family != AF_INET) { + break; + } + if (in_len < sizeof(struct sockaddr_in)) { + break; + } + sin = (const struct sockaddr_in *)(const void *)in_addr; + if(sin->sin_addr.s_addr != htonl(INADDR_ANY)) { + break; + } + + /* + * Note: in the special case of AF_UNSPEC and INADDR_ANY, + * AF_UNSPEC is mapped to AF_INET and must be treated here. + */ + + /* FALL THROUGH */ + } + case AF_INET: +#ifdef HAVE_IPV6 + case AF_INET6: +#endif + switch (si->type) { + case SOCK_STREAM: + case SOCK_DGRAM: + break; + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown socket type!\n"); + errno = ESOCKTNOSUPPORT; + return -1; + } + if (alloc_sock) { + return convert_in_un_alloc(si, in_addr, out_addr, bcast); + } else { + return convert_in_un_remote(si, in_addr, out_addr, bcast); + } + default: + break; + } + + errno = EAFNOSUPPORT; + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown address family\n"); + return -1; +} + +static int sockaddr_convert_from_un(const struct socket_info *si, + const struct sockaddr_un *in_addr, + socklen_t un_addrlen, + int family, + struct sockaddr *out_addr, + socklen_t *out_addrlen) +{ + int ret; + + if (out_addr == NULL || out_addrlen == NULL) + return 0; + + if (un_addrlen == 0) { + *out_addrlen = 0; + return 0; + } + + switch (family) { + case AF_INET: +#ifdef HAVE_IPV6 + case AF_INET6: +#endif + switch (si->type) { + case SOCK_STREAM: + case SOCK_DGRAM: + break; + default: + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown socket type!\n"); + errno = ESOCKTNOSUPPORT; + return -1; + } + ret = convert_un_in(in_addr, out_addr, out_addrlen); +#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN + out_addr->sa_len = *out_addrlen; +#endif + return ret; + default: + break; + } + + SWRAP_LOG(SWRAP_LOG_ERROR, "Unknown address family\n"); + errno = EAFNOSUPPORT; + return -1; +} + +enum swrap_packet_type { + SWRAP_CONNECT_SEND, + SWRAP_CONNECT_UNREACH, + SWRAP_CONNECT_RECV, + SWRAP_CONNECT_ACK, + SWRAP_ACCEPT_SEND, + SWRAP_ACCEPT_RECV, + SWRAP_ACCEPT_ACK, + SWRAP_RECVFROM, + SWRAP_SENDTO, + SWRAP_SENDTO_UNREACH, + SWRAP_PENDING_RST, + SWRAP_RECV, + SWRAP_RECV_RST, + SWRAP_SEND, + SWRAP_SEND_RST, + SWRAP_CLOSE_SEND, + SWRAP_CLOSE_RECV, + SWRAP_CLOSE_ACK, +}; + +struct swrap_file_hdr { + uint32_t magic; + uint16_t version_major; + uint16_t version_minor; + int32_t timezone; + uint32_t sigfigs; + uint32_t frame_max_len; +#define SWRAP_FRAME_LENGTH_MAX 0xFFFF + uint32_t link_type; +}; +#define SWRAP_FILE_HDR_SIZE 24 + +struct swrap_packet_frame { + uint32_t seconds; + uint32_t micro_seconds; + uint32_t recorded_length; + uint32_t full_length; +}; +#define SWRAP_PACKET_FRAME_SIZE 16 + +union swrap_packet_ip { + struct { + uint8_t ver_hdrlen; + uint8_t tos; + uint16_t packet_length; + uint16_t identification; + uint8_t flags; + uint8_t fragment; + uint8_t ttl; + uint8_t protocol; + uint16_t hdr_checksum; + uint32_t src_addr; + uint32_t dest_addr; + } v4; +#define SWRAP_PACKET_IP_V4_SIZE 20 + struct { + uint8_t ver_prio; + uint8_t flow_label_high; + uint16_t flow_label_low; + uint16_t payload_length; + uint8_t next_header; + uint8_t hop_limit; + uint8_t src_addr[16]; + uint8_t dest_addr[16]; + } v6; +#define SWRAP_PACKET_IP_V6_SIZE 40 +}; +#define SWRAP_PACKET_IP_SIZE 40 + +union swrap_packet_payload { + struct { + uint16_t source_port; + uint16_t dest_port; + uint32_t seq_num; + uint32_t ack_num; + uint8_t hdr_length; + uint8_t control; + uint16_t window; + uint16_t checksum; + uint16_t urg; + } tcp; +#define SWRAP_PACKET_PAYLOAD_TCP_SIZE 20 + struct { + uint16_t source_port; + uint16_t dest_port; + uint16_t length; + uint16_t checksum; + } udp; +#define SWRAP_PACKET_PAYLOAD_UDP_SIZE 8 + struct { + uint8_t type; + uint8_t code; + uint16_t checksum; + uint32_t unused; + } icmp4; +#define SWRAP_PACKET_PAYLOAD_ICMP4_SIZE 8 + struct { + uint8_t type; + uint8_t code; + uint16_t checksum; + uint32_t unused; + } icmp6; +#define SWRAP_PACKET_PAYLOAD_ICMP6_SIZE 8 +}; +#define SWRAP_PACKET_PAYLOAD_SIZE 20 + +#define SWRAP_PACKET_MIN_ALLOC \ + (SWRAP_PACKET_FRAME_SIZE + \ + SWRAP_PACKET_IP_SIZE + \ + SWRAP_PACKET_PAYLOAD_SIZE) + +static const char *swrap_pcap_init_file(void) +{ + static const char *s = NULL; + static const struct swrap_file_hdr h; + static const struct swrap_packet_frame f; + static const union swrap_packet_ip i; + static const union swrap_packet_payload p; + + // if (initialized == 1) { + // printf("return: 1\n"); + // return s; + // } + // initialized = 1; + + /* + * TODO: don't use the structs use plain buffer offsets + * and PUSH_U8(), PUSH_U16() and PUSH_U32() + * + * for now make sure we disable PCAP support + * if the struct has alignment! + */ + if (sizeof(h) != SWRAP_FILE_HDR_SIZE) { + return NULL; + } + if (sizeof(f) != SWRAP_PACKET_FRAME_SIZE) { + return NULL; + } + if (sizeof(i) != SWRAP_PACKET_IP_SIZE) { + return NULL; + } + if (sizeof(i.v4) != SWRAP_PACKET_IP_V4_SIZE) { + return NULL; + } + if (sizeof(i.v6) != SWRAP_PACKET_IP_V6_SIZE) { + return NULL; + } + if (sizeof(p) != SWRAP_PACKET_PAYLOAD_SIZE) { + return NULL; + } + if (sizeof(p.tcp) != SWRAP_PACKET_PAYLOAD_TCP_SIZE) { + return NULL; + } + if (sizeof(p.udp) != SWRAP_PACKET_PAYLOAD_UDP_SIZE) { + return NULL; + } + if (sizeof(p.icmp4) != SWRAP_PACKET_PAYLOAD_ICMP4_SIZE) { + return NULL; + } + if (sizeof(p.icmp6) != SWRAP_PACKET_PAYLOAD_ICMP6_SIZE) { + return NULL; + } + + s = getenv("SOCKET_WRAPPER_PCAP_FILE"); + if (s == NULL) { + return NULL; + } + if (strncmp(s, "./", 2) == 0) { + s += 2; + } + return s; +} + +static uint8_t *swrap_pcap_packet_init(struct timeval *tval, + const struct sockaddr *src, + const struct sockaddr *dest, + int socket_type, + const uint8_t *payload, + size_t payload_len, + unsigned long tcp_seqno, + unsigned long tcp_ack, + unsigned char tcp_ctl, + int unreachable, + size_t *_packet_len) +{ + uint8_t *base; + uint8_t *buf; + struct swrap_packet_frame *frame; + union swrap_packet_ip *ip; + union swrap_packet_payload *pay; + size_t packet_len; + size_t alloc_len; + size_t nonwire_len = sizeof(*frame); + size_t wire_hdr_len = 0; + size_t wire_len = 0; + size_t ip_hdr_len = 0; + size_t icmp_hdr_len = 0; + size_t icmp_truncate_len = 0; + uint8_t protocol = 0, icmp_protocol = 0; + const struct sockaddr_in *src_in = NULL; + const struct sockaddr_in *dest_in = NULL; +#ifdef HAVE_IPV6 + const struct sockaddr_in6 *src_in6 = NULL; + const struct sockaddr_in6 *dest_in6 = NULL; +#endif + uint16_t src_port; + uint16_t dest_port; + + switch (src->sa_family) { + case AF_INET: + src_in = (const struct sockaddr_in *)(const void *)src; + dest_in = (const struct sockaddr_in *)(const void *)dest; + src_port = src_in->sin_port; + dest_port = dest_in->sin_port; + ip_hdr_len = sizeof(ip->v4); + break; +#ifdef HAVE_IPV6 + case AF_INET6: + src_in6 = (const struct sockaddr_in6 *)(const void *)src; + dest_in6 = (const struct sockaddr_in6 *)(const void *)dest; + src_port = src_in6->sin6_port; + dest_port = dest_in6->sin6_port; + ip_hdr_len = sizeof(ip->v6); + break; +#endif + default: + return NULL; + } + + switch (socket_type) { + case SOCK_STREAM: + protocol = 0x06; /* TCP */ + wire_hdr_len = ip_hdr_len + sizeof(pay->tcp); + wire_len = wire_hdr_len + payload_len; + break; + + case SOCK_DGRAM: + protocol = 0x11; /* UDP */ + wire_hdr_len = ip_hdr_len + sizeof(pay->udp); + wire_len = wire_hdr_len + payload_len; + break; + + default: + return NULL; + } + + if (unreachable) { + icmp_protocol = protocol; + switch (src->sa_family) { + case AF_INET: + protocol = 0x01; /* ICMPv4 */ + icmp_hdr_len = ip_hdr_len + sizeof(pay->icmp4); + break; +#ifdef HAVE_IPV6 + case AF_INET6: + protocol = 0x3A; /* ICMPv6 */ + icmp_hdr_len = ip_hdr_len + sizeof(pay->icmp6); + break; +#endif + } + if (wire_len > 64 ) { + icmp_truncate_len = wire_len - 64; + } + wire_hdr_len += icmp_hdr_len; + wire_len += icmp_hdr_len; + } + + packet_len = nonwire_len + wire_len; + alloc_len = packet_len; + if (alloc_len < SWRAP_PACKET_MIN_ALLOC) { + alloc_len = SWRAP_PACKET_MIN_ALLOC; + } + + base = (uint8_t *)calloc(1, alloc_len); + if (base == NULL) { + return NULL; + } + + buf = base; + + frame = (struct swrap_packet_frame *)(void *)buf; + frame->seconds = tval->tv_sec; + frame->micro_seconds = tval->tv_usec; + frame->recorded_length = wire_len - icmp_truncate_len; + frame->full_length = wire_len - icmp_truncate_len; + buf += SWRAP_PACKET_FRAME_SIZE; + + ip = (union swrap_packet_ip *)(void *)buf; + switch (src->sa_family) { + case AF_INET: + ip->v4.ver_hdrlen = 0x45; /* version 4 and 5 * 32 bit words */ + ip->v4.tos = 0x00; + ip->v4.packet_length = htons(wire_len - icmp_truncate_len); + ip->v4.identification = htons(0xFFFF); + ip->v4.flags = 0x40; /* BIT 1 set - means don't fragment */ + ip->v4.fragment = htons(0x0000); + ip->v4.ttl = 0xFF; + ip->v4.protocol = protocol; + ip->v4.hdr_checksum = htons(0x0000); + ip->v4.src_addr = src_in->sin_addr.s_addr; + ip->v4.dest_addr = dest_in->sin_addr.s_addr; + buf += SWRAP_PACKET_IP_V4_SIZE; + break; +#ifdef HAVE_IPV6 + case AF_INET6: + ip->v6.ver_prio = 0x60; /* version 4 and 5 * 32 bit words */ + ip->v6.flow_label_high = 0x00; + ip->v6.flow_label_low = 0x0000; + ip->v6.payload_length = htons(wire_len - icmp_truncate_len); /* TODO */ + ip->v6.next_header = protocol; + memcpy(ip->v6.src_addr, src_in6->sin6_addr.s6_addr, 16); + memcpy(ip->v6.dest_addr, dest_in6->sin6_addr.s6_addr, 16); + buf += SWRAP_PACKET_IP_V6_SIZE; + break; +#endif + } + + if (unreachable) { + pay = (union swrap_packet_payload *)(void *)buf; + switch (src->sa_family) { + case AF_INET: + pay->icmp4.type = 0x03; /* destination unreachable */ + pay->icmp4.code = 0x01; /* host unreachable */ + pay->icmp4.checksum = htons(0x0000); + pay->icmp4.unused = htonl(0x00000000); + buf += SWRAP_PACKET_PAYLOAD_ICMP4_SIZE; + + /* set the ip header in the ICMP payload */ + ip = (union swrap_packet_ip *)(void *)buf; + ip->v4.ver_hdrlen = 0x45; /* version 4 and 5 * 32 bit words */ + ip->v4.tos = 0x00; + ip->v4.packet_length = htons(wire_len - icmp_hdr_len); + ip->v4.identification = htons(0xFFFF); + ip->v4.flags = 0x40; /* BIT 1 set - means don't fragment */ + ip->v4.fragment = htons(0x0000); + ip->v4.ttl = 0xFF; + ip->v4.protocol = icmp_protocol; + ip->v4.hdr_checksum = htons(0x0000); + ip->v4.src_addr = dest_in->sin_addr.s_addr; + ip->v4.dest_addr = src_in->sin_addr.s_addr; + buf += SWRAP_PACKET_IP_V4_SIZE; + + src_port = dest_in->sin_port; + dest_port = src_in->sin_port; + break; +#ifdef HAVE_IPV6 + case AF_INET6: + pay->icmp6.type = 0x01; /* destination unreachable */ + pay->icmp6.code = 0x03; /* address unreachable */ + pay->icmp6.checksum = htons(0x0000); + pay->icmp6.unused = htonl(0x00000000); + buf += SWRAP_PACKET_PAYLOAD_ICMP6_SIZE; + + /* set the ip header in the ICMP payload */ + ip = (union swrap_packet_ip *)(void *)buf; + ip->v6.ver_prio = 0x60; /* version 4 and 5 * 32 bit words */ + ip->v6.flow_label_high = 0x00; + ip->v6.flow_label_low = 0x0000; + ip->v6.payload_length = htons(wire_len - icmp_truncate_len); /* TODO */ + ip->v6.next_header = protocol; + memcpy(ip->v6.src_addr, dest_in6->sin6_addr.s6_addr, 16); + memcpy(ip->v6.dest_addr, src_in6->sin6_addr.s6_addr, 16); + buf += SWRAP_PACKET_IP_V6_SIZE; + + src_port = dest_in6->sin6_port; + dest_port = src_in6->sin6_port; + break; +#endif + } + } + + pay = (union swrap_packet_payload *)(void *)buf; + + switch (socket_type) { + case SOCK_STREAM: + pay->tcp.source_port = src_port; + pay->tcp.dest_port = dest_port; + pay->tcp.seq_num = htonl(tcp_seqno); + pay->tcp.ack_num = htonl(tcp_ack); + pay->tcp.hdr_length = 0x50; /* 5 * 32 bit words */ + pay->tcp.control = tcp_ctl; + pay->tcp.window = htons(0x7FFF); + pay->tcp.checksum = htons(0x0000); + pay->tcp.urg = htons(0x0000); + buf += SWRAP_PACKET_PAYLOAD_TCP_SIZE; + + break; + + case SOCK_DGRAM: + pay->udp.source_port = src_port; + pay->udp.dest_port = dest_port; + pay->udp.length = htons(8 + payload_len); + pay->udp.checksum = htons(0x0000); + buf += SWRAP_PACKET_PAYLOAD_UDP_SIZE; + + break; + } + + if (payload && payload_len > 0) { + memcpy(buf, payload, payload_len); + } + + *_packet_len = packet_len - icmp_truncate_len; + return base; +} + +static int swrap_pcap_get_fd(const char *fname) +{ + int fd = -1; + + // if (fd != -1) return fd; + + fd = libc_open(fname, O_WRONLY|O_CREAT|O_EXCL|O_APPEND, 0644); + if (fd != -1) { + struct swrap_file_hdr file_hdr; + file_hdr.magic = 0xA1B2C3D4; + file_hdr.version_major = 0x0002; + file_hdr.version_minor = 0x0004; + file_hdr.timezone = 0x00000000; + file_hdr.sigfigs = 0x00000000; + file_hdr.frame_max_len = SWRAP_FRAME_LENGTH_MAX; + file_hdr.link_type = 0x0065; /* 101 RAW IP */ + + if (write(fd, &file_hdr, sizeof(file_hdr)) != sizeof(file_hdr)) { + close(fd); + fd = -1; + } + return fd; + } + + fd = libc_open(fname, O_WRONLY|O_APPEND, 0644); + + return fd; +} + +static uint8_t *swrap_pcap_marshall_packet(struct socket_info *si, + const struct sockaddr *addr, + enum swrap_packet_type type, + const void *buf, size_t len, + size_t *packet_len) +{ + const struct sockaddr *src_addr; + const struct sockaddr *dest_addr; + unsigned long tcp_seqno = 0; + unsigned long tcp_ack = 0; + unsigned char tcp_ctl = 0; + int unreachable = 0; + + struct timeval tv; + + switch (si->family) { + case AF_INET: + break; +#ifdef HAVE_IPV6 + case AF_INET6: + break; +#endif + default: + return NULL; + } + + switch (type) { + case SWRAP_CONNECT_SEND: + if (si->type != SOCK_STREAM) return NULL; + + src_addr = &si->myname.sa.s; + dest_addr = addr; + + tcp_seqno = si->io.pck_snd; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x02; /* SYN */ + + si->io.pck_snd += 1; + + break; + + case SWRAP_CONNECT_RECV: + if (si->type != SOCK_STREAM) return NULL; + + dest_addr = &si->myname.sa.s; + src_addr = addr; + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x12; /** SYN,ACK */ + + si->io.pck_rcv += 1; + + break; + + case SWRAP_CONNECT_UNREACH: + if (si->type != SOCK_STREAM) return NULL; + + dest_addr = &si->myname.sa.s; + src_addr = addr; + + /* Unreachable: resend the data of SWRAP_CONNECT_SEND */ + tcp_seqno = si->io.pck_snd - 1; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x02; /* SYN */ + unreachable = 1; + + break; + + case SWRAP_CONNECT_ACK: + if (si->type != SOCK_STREAM) return NULL; + + src_addr = &si->myname.sa.s; + dest_addr = addr; + + tcp_seqno = si->io.pck_snd; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x10; /* ACK */ + + break; + + case SWRAP_ACCEPT_SEND: + if (si->type != SOCK_STREAM) return NULL; + + dest_addr = &si->myname.sa.s; + src_addr = addr; + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x02; /* SYN */ + + si->io.pck_rcv += 1; + + break; + + case SWRAP_ACCEPT_RECV: + if (si->type != SOCK_STREAM) return NULL; + + src_addr = &si->myname.sa.s; + dest_addr = addr; + + tcp_seqno = si->io.pck_snd; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x12; /* SYN,ACK */ + + si->io.pck_snd += 1; + + break; + + case SWRAP_ACCEPT_ACK: + if (si->type != SOCK_STREAM) return NULL; + + dest_addr = &si->myname.sa.s; + src_addr = addr; + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x10; /* ACK */ + + break; + + case SWRAP_SEND: + src_addr = &si->myname.sa.s; + dest_addr = &si->peername.sa.s; + + tcp_seqno = si->io.pck_snd; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x18; /* PSH,ACK */ + + si->io.pck_snd += len; + + break; + + case SWRAP_SEND_RST: + dest_addr = &si->myname.sa.s; + src_addr = &si->peername.sa.s; + + if (si->type == SOCK_DGRAM) { + return swrap_pcap_marshall_packet(si, + &si->peername.sa.s, + SWRAP_SENDTO_UNREACH, + buf, + len, + packet_len); + } + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x14; /** RST,ACK */ + + break; + + case SWRAP_PENDING_RST: + dest_addr = &si->myname.sa.s; + src_addr = &si->peername.sa.s; + + if (si->type == SOCK_DGRAM) { + return NULL; + } + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x14; /* RST,ACK */ + + break; + + case SWRAP_RECV: + dest_addr = &si->myname.sa.s; + src_addr = &si->peername.sa.s; + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x18; /* PSH,ACK */ + + si->io.pck_rcv += len; + + break; + + case SWRAP_RECV_RST: + dest_addr = &si->myname.sa.s; + src_addr = &si->peername.sa.s; + + if (si->type == SOCK_DGRAM) { + return NULL; + } + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x14; /* RST,ACK */ + + break; + + case SWRAP_SENDTO: + src_addr = &si->myname.sa.s; + dest_addr = addr; + + si->io.pck_snd += len; + + break; + + case SWRAP_SENDTO_UNREACH: + dest_addr = &si->myname.sa.s; + src_addr = addr; + + unreachable = 1; + + break; + + case SWRAP_RECVFROM: + dest_addr = &si->myname.sa.s; + src_addr = addr; + + si->io.pck_rcv += len; + + break; + + case SWRAP_CLOSE_SEND: + if (si->type != SOCK_STREAM) return NULL; + + src_addr = &si->myname.sa.s; + dest_addr = &si->peername.sa.s; + + tcp_seqno = si->io.pck_snd; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x11; /* FIN, ACK */ + + si->io.pck_snd += 1; + + break; + + case SWRAP_CLOSE_RECV: + if (si->type != SOCK_STREAM) return NULL; + + dest_addr = &si->myname.sa.s; + src_addr = &si->peername.sa.s; + + tcp_seqno = si->io.pck_rcv; + tcp_ack = si->io.pck_snd; + tcp_ctl = 0x11; /* FIN,ACK */ + + si->io.pck_rcv += 1; + + break; + + case SWRAP_CLOSE_ACK: + if (si->type != SOCK_STREAM) return NULL; + + src_addr = &si->myname.sa.s; + dest_addr = &si->peername.sa.s; + + tcp_seqno = si->io.pck_snd; + tcp_ack = si->io.pck_rcv; + tcp_ctl = 0x10; /* ACK */ + + break; + default: + return NULL; + } + + swrapGetTimeOfDay(&tv); + + return swrap_pcap_packet_init(&tv, + src_addr, + dest_addr, + si->type, + (const uint8_t *)buf, + len, + tcp_seqno, + tcp_ack, + tcp_ctl, + unreachable, + packet_len); +} + +static void swrap_pcap_dump_packet(struct socket_info *si, + const struct sockaddr *addr, + enum swrap_packet_type type, + const void *buf, size_t len) +{ + const char *file_name; + uint8_t *packet; + size_t packet_len = 0; + int fd; + + file_name = swrap_pcap_init_file(); + if (!file_name) { + return; + } + + packet = swrap_pcap_marshall_packet(si, + addr, + type, + buf, + len, + &packet_len); + if (packet == NULL) { + return; + } + + fd = swrap_pcap_get_fd(file_name); + if (fd != -1) { + if (write(fd, packet, packet_len) != (ssize_t)packet_len) { + close(fd); + free(packet); + return; + } + } + close(fd); + free(packet); +} + +/**************************************************************************** + * SIGNALFD + ***************************************************************************/ + +#ifdef HAVE_SIGNALFD +static int swrap_signalfd(int fd, const sigset_t *mask, int flags) +{ + int rc; + + rc = libc_signalfd(fd, mask, flags); + if (rc != -1) { + swrap_remove_stale(fd); + } + + return rc; +} + +int signalfd(int fd, const sigset_t *mask, int flags) +{ + return swrap_signalfd(fd, mask, flags); +} +#endif + +/**************************************************************************** + * SOCKET + ***************************************************************************/ + +static int swrap_socket(int family, int type, int protocol) +{ + struct socket_info *si; + struct socket_info_fd *fi; + int fd; + int real_type = type; + + /* + * Remove possible addition flags passed to socket() so + * do not fail checking the type. + * See https://lwn.net/Articles/281965/ + */ +#ifdef SOCK_CLOEXEC + real_type &= ~SOCK_CLOEXEC; +#endif +#ifdef SOCK_NONBLOCK + real_type &= ~SOCK_NONBLOCK; +#endif + + if (!socket_wrapper_enabled()) { + return libc_socket(family, type, protocol); + } + + switch (family) { + case AF_INET: +#ifdef HAVE_IPV6 + case AF_INET6: +#endif + break; +#ifdef AF_NETLINK + case AF_NETLINK: +#endif /* AF_NETLINK */ +#ifdef AF_PACKET + case AF_PACKET: +#endif /* AF_PACKET */ + case AF_UNIX: + return libc_socket(family, type, protocol); + default: + errno = EAFNOSUPPORT; + return -1; + } + + switch (real_type) { + case SOCK_STREAM: + break; + case SOCK_DGRAM: + break; + default: + errno = EPROTONOSUPPORT; + return -1; + } + + switch (protocol) { + case 0: + break; + case 6: + if (real_type == SOCK_STREAM) { + break; + } + /*fall through*/ + case 17: + if (real_type == SOCK_DGRAM) { + break; + } + /*fall through*/ + default: + errno = EPROTONOSUPPORT; + return -1; + } + + /* + * We must call libc_socket with type, from the caller, not the version + * we removed SOCK_CLOEXEC and SOCK_NONBLOCK from + */ + fd = libc_socket(AF_UNIX, type, 0); + + if (fd == -1) { + return -1; + } + + /* Check if we have a stale fd and remove it */ + si = find_socket_info(fd); + if (si != NULL) { + swrap_remove_stale(fd); + } + + si = (struct socket_info *)calloc(1, sizeof(struct socket_info)); + if (si == NULL) { + errno = ENOMEM; + return -1; + } + + si->family = family; + + /* however, the rest of the socket_wrapper code expects just + * the type, not the flags */ + si->type = real_type; + si->protocol = protocol; + + /* + * Setup myname so getsockname() can succeed to find out the socket + * type. + */ + switch(si->family) { + case AF_INET: { + struct sockaddr_in sin = { + .sin_family = AF_INET, + }; + + si->myname.sa_socklen = sizeof(struct sockaddr_in); + memcpy(&si->myname.sa.in, &sin, si->myname.sa_socklen); + break; + } + case AF_INET6: { + struct sockaddr_in6 sin6 = { + .sin6_family = AF_INET6, + }; + + si->myname.sa_socklen = sizeof(struct sockaddr_in6); + memcpy(&si->myname.sa.in6, &sin6, si->myname.sa_socklen); + break; + } + default: + free(si); + errno = EINVAL; + return -1; + } + + fi = (struct socket_info_fd *)calloc(1, sizeof(struct socket_info_fd)); + if (fi == NULL) { + free(si); + errno = ENOMEM; + return -1; + } + + fi->fd = fd; + + SWRAP_DLIST_ADD(si->fds, fi); + SWRAP_DLIST_ADD(sockets, si); + + SWRAP_LOG(SWRAP_LOG_TRACE, + "Created %s socket for protocol %s", + si->family == AF_INET ? "IPv4" : "IPv6", + si->type == SOCK_DGRAM ? "UDP" : "TCP"); + + return fd; +} + +int socket(int family, int type, int protocol) +{ + return swrap_socket(family, type, protocol); +} + +/**************************************************************************** + * SOCKETPAIR + ***************************************************************************/ + +static int swrap_socketpair(int family, int type, int protocol, int sv[2]) +{ + int rc; + + rc = libc_socketpair(family, type, protocol, sv); + if (rc != -1) { + swrap_remove_stale(sv[0]); + swrap_remove_stale(sv[1]); + } + + return rc; +} + +int socketpair(int family, int type, int protocol, int sv[2]) +{ + return swrap_socketpair(family, type, protocol, sv); +} + +/**************************************************************************** + * SOCKETPAIR + ***************************************************************************/ + +#ifdef HAVE_TIMERFD_CREATE +static int swrap_timerfd_create(int clockid, int flags) +{ + int fd; + + fd = libc_timerfd_create(clockid, flags); + if (fd != -1) { + swrap_remove_stale(fd); + } + + return fd; +} + +int timerfd_create(int clockid, int flags) +{ + return swrap_timerfd_create(clockid, flags); +} +#endif + +/**************************************************************************** + * PIPE + ***************************************************************************/ + +static int swrap_pipe(int pipefd[2]) +{ + int rc; + + rc = libc_pipe(pipefd); + if (rc != -1) { + swrap_remove_stale(pipefd[0]); + swrap_remove_stale(pipefd[1]); + } + + return rc; +} + +int pipe(int pipefd[2]) +{ + return swrap_pipe(pipefd); +} + +/**************************************************************************** + * ACCEPT + ***************************************************************************/ + +static int swrap_accept(int s, + struct sockaddr *addr, + socklen_t *addrlen, + int flags) +{ + struct socket_info *parent_si, *child_si; + struct socket_info_fd *child_fi; + int fd; + struct swrap_address un_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + struct swrap_address un_my_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + struct swrap_address in_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct swrap_address in_my_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int ret; + + parent_si = find_socket_info(s); + if (!parent_si) { +#ifdef HAVE_ACCEPT4 + return libc_accept4(s, addr, addrlen, flags); +#else + return libc_accept(s, addr, addrlen); +#endif + } + + /* + * assume out sockaddr have the same size as the in parent + * socket family + */ + in_addr.sa_socklen = socket_length(parent_si->family); + if (in_addr.sa_socklen <= 0) { + errno = EINVAL; + return -1; + } + +#ifdef HAVE_ACCEPT4 + ret = libc_accept4(s, &un_addr.sa.s, &un_addr.sa_socklen, flags); +#else + ret = libc_accept(s, &un_addr.sa.s, &un_addr.sa_socklen); +#endif + if (ret == -1) { + if (errno == ENOTSOCK) { + /* Remove stale fds */ + swrap_remove_stale(s); + } + return ret; + } + + fd = ret; + + ret = sockaddr_convert_from_un(parent_si, + &un_addr.sa.un, + un_addr.sa_socklen, + parent_si->family, + &in_addr.sa.s, + &in_addr.sa_socklen); + if (ret == -1) { + close(fd); + return ret; + } + + child_si = (struct socket_info *)calloc(1, sizeof(struct socket_info)); + if (child_si == NULL) { + close(fd); + errno = ENOMEM; + return -1; + } + + child_fi = (struct socket_info_fd *)calloc(1, sizeof(struct socket_info_fd)); + if (child_fi == NULL) { + free(child_si); + close(fd); + errno = ENOMEM; + return -1; + } + + child_fi->fd = fd; + + SWRAP_DLIST_ADD(child_si->fds, child_fi); + + child_si->family = parent_si->family; + child_si->type = parent_si->type; + child_si->protocol = parent_si->protocol; + child_si->bound = 1; + child_si->is_server = 1; + child_si->connected = 1; + + child_si->peername = (struct swrap_address) { + .sa_socklen = in_addr.sa_socklen, + }; + memcpy(&child_si->peername.sa.ss, &in_addr.sa.ss, in_addr.sa_socklen); + + if (addr != NULL && addrlen != NULL) { + size_t copy_len = MIN(*addrlen, in_addr.sa_socklen); + if (copy_len > 0) { + memcpy(addr, &in_addr.sa.ss, copy_len); + } + *addrlen = in_addr.sa_socklen; + } + + ret = libc_getsockname(fd, + &un_my_addr.sa.s, + &un_my_addr.sa_socklen); + if (ret == -1) { + free(child_fi); + free(child_si); + close(fd); + return ret; + } + + ret = sockaddr_convert_from_un(child_si, + &un_my_addr.sa.un, + un_my_addr.sa_socklen, + child_si->family, + &in_my_addr.sa.s, + &in_my_addr.sa_socklen); + if (ret == -1) { + free(child_fi); + free(child_si); + close(fd); + return ret; + } + + SWRAP_LOG(SWRAP_LOG_TRACE, + "accept() path=%s, fd=%d", + un_my_addr.sa.un.sun_path, s); + + child_si->myname = (struct swrap_address) { + .sa_socklen = in_my_addr.sa_socklen, + }; + memcpy(&child_si->myname.sa.ss, &in_my_addr.sa.ss, in_my_addr.sa_socklen); + + SWRAP_DLIST_ADD(sockets, child_si); + + if (addr != NULL) { + swrap_pcap_dump_packet(child_si, addr, SWRAP_ACCEPT_SEND, NULL, 0); + swrap_pcap_dump_packet(child_si, addr, SWRAP_ACCEPT_RECV, NULL, 0); + swrap_pcap_dump_packet(child_si, addr, SWRAP_ACCEPT_ACK, NULL, 0); + } + + return fd; +} + +#ifdef HAVE_ACCEPT4 +int accept4(int s, struct sockaddr *addr, socklen_t *addrlen, int flags) +{ + return swrap_accept(s, addr, (socklen_t *)addrlen, flags); +} +#endif + +#ifdef HAVE_ACCEPT_PSOCKLEN_T +int accept(int s, struct sockaddr *addr, Psocklen_t addrlen) +#else +int accept(int s, struct sockaddr *addr, socklen_t *addrlen) +#endif +{ + return swrap_accept(s, addr, (socklen_t *)addrlen, 0); +} + +static int autobind_start_init; +static int autobind_start; + +/* using sendto() or connect() on an unbound socket would give the + recipient no way to reply, as unlike UDP and TCP, a unix domain + socket can't auto-assign ephemeral port numbers, so we need to + assign it here. + Note: this might change the family from ipv6 to ipv4 +*/ +static int swrap_auto_bind(int fd, struct socket_info *si, int family) +{ + struct swrap_address un_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + int i; + char type; + int ret; + int port; + unsigned int in4_addr, in6_a0, in6_a1, in6_a2, in6_a3; + struct stat st; + + if (autobind_start_init != 1) { + autobind_start_init = 1; + autobind_start = getpid(); + autobind_start %= 50000; + autobind_start += 10000; + } + + un_addr.sa.un.sun_family = AF_UNIX; + + switch (family) { + case AF_INET: { + struct sockaddr_in in; + + switch (si->type) { + case SOCK_STREAM: + type = SOCKET_TYPE_CHAR_TCP_LONG; + break; + case SOCK_DGRAM: + type = SOCKET_TYPE_CHAR_UDP_LONG; + break; + default: + errno = ESOCKTNOSUPPORT; + return -1; + } + + memset(&in, 0, sizeof(in)); + in.sin_family = AF_INET; + in4_addr = socket_wrapper_default_addr(); + in.sin_addr.s_addr = htonl(in4_addr); + + si->myname = (struct swrap_address) { + .sa_socklen = sizeof(in), + }; + memcpy(&si->myname.sa.in, &in, si->myname.sa_socklen); + break; + } +#ifdef HAVE_IPV6 + case AF_INET6: { + struct sockaddr_in6 in6; + + if (si->family != family) { + errno = ENETUNREACH; + return -1; + } + + switch (si->type) { + case SOCK_STREAM: + type = SOCKET_TYPE_CHAR_TCP_V6_LONG; + break; + case SOCK_DGRAM: + type = SOCKET_TYPE_CHAR_UDP_V6_LONG; + break; + default: + errno = ESOCKTNOSUPPORT; + return -1; + } + + memset(&in6, 0, sizeof(in6)); + in6.sin6_family = AF_INET6; + in6.sin6_addr = *swrap_ipv6(); + in6.sin6_addr.s6_addr[15] = socket_wrapper_default_iface(); + + si->myname = (struct swrap_address) { + .sa_socklen = sizeof(in6), + }; + memcpy(&si->myname.sa.in6, &in6, si->myname.sa_socklen); + swrap_make_ipv6_ints(in6.sin6_addr.s6_addr,&in6_a0,&in6_a1,&in6_a2,&in6_a3); + break; + } +#endif + default: + errno = ESOCKTNOSUPPORT; + return -1; + } + + if (autobind_start > 60000) { + autobind_start = 10000; + } + + for (i = 0; i < SOCKET_MAX_SOCKETS; i++) { + port = autobind_start + i; + + if (family == AF_INET) + snprintf(un_addr.sa.un.sun_path, sizeof(un_addr.sa.un.sun_path), + "%s/"SOCKET_FORMAT_LONG, socket_wrapper_dir(), + type, in4_addr, port); + else + snprintf(un_addr.sa.un.sun_path, sizeof(un_addr.sa.un.sun_path), + "%s/"SOCKET_FORMAT_V6_LONG, socket_wrapper_dir(), + type, in6_a0,in6_a1, in6_a2, in6_a3, port); + + if (stat(un_addr.sa.un.sun_path, &st) == 0) continue; + + ret = libc_bind(fd, &un_addr.sa.s, un_addr.sa_socklen); + if (ret == -1) return ret; + + si->un_addr = un_addr.sa.un; + + si->bound = 1; + autobind_start = port + 1; + SWRAP_LOG(SWRAP_LOG_TRACE, "bound to: %s", un_addr.sa.un.sun_path); + break; + } + if (i == SOCKET_MAX_SOCKETS) { + SWRAP_LOG(SWRAP_LOG_ERROR, "Too many open unix sockets (%u) for " + "interface "SOCKET_FORMAT, + SOCKET_MAX_SOCKETS, + type, + socket_wrapper_default_addr(), + 0); + errno = ENFILE; + return -1; + } + + si->family = family; + set_port(si->family, port, &si->myname); + + return 0; +} + +/**************************************************************************** + * CONNECT + ***************************************************************************/ + +static int swrap_connect(int s, const struct sockaddr *serv_addr, + socklen_t addrlen) +{ + int ret; + struct swrap_address un_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + struct socket_info *si = find_socket_info(s); + int bcast = 0; + + if (!si) { + return libc_connect(s, serv_addr, addrlen); + } + + if (si->bound == 0) { + ret = swrap_auto_bind(s, si, serv_addr->sa_family); + if (ret == -1) return -1; + } + + if (si->family != serv_addr->sa_family) { + errno = EINVAL; + return -1; + } + + ret = sockaddr_convert_to_un(si, serv_addr, + addrlen, &un_addr.sa.un, 0, &bcast); + if (ret == -1) return -1; + + if (bcast) { + errno = ENETUNREACH; + return -1; + } + + if (si->type == SOCK_DGRAM) { + si->defer_connect = 1; + ret = 0; + } else { + swrap_pcap_dump_packet(si, serv_addr, SWRAP_CONNECT_SEND, NULL, 0); + + ret = libc_connect(s, + &un_addr.sa.s, + un_addr.sa_socklen); + } + + SWRAP_LOG(SWRAP_LOG_TRACE, + "connect() path=%s, fd=%d", + un_addr.sa.un.sun_path, s); + + + /* to give better errors */ + if (ret == -1 && errno == ENOENT) { + errno = EHOSTUNREACH; + } + + if (ret == 0) { + si->peername = (struct swrap_address) { + .sa_socklen = addrlen, + }; + + memcpy(&si->peername.sa.ss, serv_addr, addrlen); + si->connected = 1; + + /* + * When we connect() on a socket than we have to bind the + * outgoing connection on the interface we use for the + * transport. We already bound it on the right interface + * but here we have to update the name so getsockname() + * returns correct information. + */ + if (si->bindname.sa_socklen > 0) { + si->myname = (struct swrap_address) { + .sa_socklen = si->bindname.sa_socklen, + }; + + memcpy(&si->myname.sa.ss, + &si->bindname.sa.ss, + si->bindname.sa_socklen); + + /* Cleanup bindname */ + si->bindname = (struct swrap_address) { + .sa_socklen = 0, + }; + } + + swrap_pcap_dump_packet(si, serv_addr, SWRAP_CONNECT_RECV, NULL, 0); + swrap_pcap_dump_packet(si, serv_addr, SWRAP_CONNECT_ACK, NULL, 0); + } else { + swrap_pcap_dump_packet(si, serv_addr, SWRAP_CONNECT_UNREACH, NULL, 0); + } + + return ret; +} + +int connect(int s, const struct sockaddr *serv_addr, socklen_t addrlen) +{ + return swrap_connect(s, serv_addr, addrlen); +} + +/**************************************************************************** + * BIND + ***************************************************************************/ + +static int swrap_bind(int s, const struct sockaddr *myaddr, socklen_t addrlen) +{ + int ret; + struct swrap_address un_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + struct socket_info *si = find_socket_info(s); + int bind_error = 0; +#if 0 /* FIXME */ + bool in_use; +#endif + + if (!si) { + return libc_bind(s, myaddr, addrlen); + } + + switch (si->family) { + case AF_INET: { + const struct sockaddr_in *sin; + if (addrlen < sizeof(struct sockaddr_in)) { + bind_error = EINVAL; + break; + } + + sin = (const struct sockaddr_in *)(const void *)myaddr; + + if (sin->sin_family != AF_INET) { + bind_error = EAFNOSUPPORT; + } + + /* special case for AF_UNSPEC */ + if (sin->sin_family == AF_UNSPEC && + (sin->sin_addr.s_addr == htonl(INADDR_ANY))) + { + bind_error = 0; + } + + break; + } +#ifdef HAVE_IPV6 + case AF_INET6: { + const struct sockaddr_in6 *sin6; + if (addrlen < sizeof(struct sockaddr_in6)) { + bind_error = EINVAL; + break; + } + + sin6 = (const struct sockaddr_in6 *)(const void *)myaddr; + + if (sin6->sin6_family != AF_INET6) { + bind_error = EAFNOSUPPORT; + } + + break; + } +#endif + default: + bind_error = EINVAL; + break; + } + + if (bind_error != 0) { + errno = bind_error; + return -1; + } + +#if 0 /* FIXME */ + in_use = check_addr_port_in_use(myaddr, addrlen); + if (in_use) { + errno = EADDRINUSE; + return -1; + } +#endif + + si->myname.sa_socklen = addrlen; + memcpy(&si->myname.sa.ss, myaddr, addrlen); + + ret = sockaddr_convert_to_un(si, + myaddr, + addrlen, + &un_addr.sa.un, + 1, + &si->bcast); + if (ret == -1) return -1; + + unlink(un_addr.sa.un.sun_path); + + ret = libc_bind(s, &un_addr.sa.s, un_addr.sa_socklen); + + SWRAP_LOG(SWRAP_LOG_TRACE, + "bind() path=%s, fd=%d", + un_addr.sa.un.sun_path, s); + + if (ret == 0) { + si->bound = 1; + } + + return ret; +} + +int bind(int s, const struct sockaddr *myaddr, socklen_t addrlen) +{ + return swrap_bind(s, myaddr, addrlen); +} + +/**************************************************************************** + * BINDRESVPORT + ***************************************************************************/ + +#ifdef HAVE_BINDRESVPORT +static int swrap_getsockname(int s, struct sockaddr *name, socklen_t *addrlen); + +static int swrap_bindresvport_sa(int sd, struct sockaddr *sa) +{ + struct swrap_address myaddr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + socklen_t salen; + static uint16_t port; + uint16_t i; + int rc = -1; + int af; + +#define SWRAP_STARTPORT 600 +#define SWRAP_ENDPORT (IPPORT_RESERVED - 1) +#define SWRAP_NPORTS (SWRAP_ENDPORT - SWRAP_STARTPORT + 1) + + if (port == 0) { + port = (getpid() % SWRAP_NPORTS) + SWRAP_STARTPORT; + } + + if (sa == NULL) { + salen = myaddr.sa_socklen; + sa = &myaddr.sa.s; + + rc = swrap_getsockname(sd, &myaddr.sa.s, &salen); + if (rc < 0) { + return -1; + } + + af = sa->sa_family; + memset(&myaddr.sa.ss, 0, salen); + } else { + af = sa->sa_family; + } + + for (i = 0; i < SWRAP_NPORTS; i++, port++) { + switch(af) { + case AF_INET: { + struct sockaddr_in *sinp = (struct sockaddr_in *)(void *)sa; + + salen = sizeof(struct sockaddr_in); + sinp->sin_port = htons(port); + break; + } + case AF_INET6: { + struct sockaddr_in6 *sin6p = (struct sockaddr_in6 *)(void *)sa; + + salen = sizeof(struct sockaddr_in6); + sin6p->sin6_port = htons(port); + break; + } + default: + errno = EAFNOSUPPORT; + return -1; + } + sa->sa_family = af; + + if (port > SWRAP_ENDPORT) { + port = SWRAP_STARTPORT; + } + + rc = swrap_bind(sd, (struct sockaddr *)sa, salen); + if (rc == 0 || errno != EADDRINUSE) { + break; + } + } + + return rc; +} + +int bindresvport(int sockfd, struct sockaddr_in *sinp) +{ + return swrap_bindresvport_sa(sockfd, (struct sockaddr *)sinp); +} +#endif + +/**************************************************************************** + * LISTEN + ***************************************************************************/ + +static int swrap_listen(int s, int backlog) +{ + int ret; + struct socket_info *si = find_socket_info(s); + + if (!si) { + return libc_listen(s, backlog); + } + + if (si->bound == 0) { + ret = swrap_auto_bind(s, si, si->family); + if (ret == -1) { + errno = EADDRINUSE; + return ret; + } + } + + ret = libc_listen(s, backlog); + + return ret; +} + +int listen(int s, int backlog) +{ + return swrap_listen(s, backlog); +} + +/**************************************************************************** + * FOPEN + ***************************************************************************/ + +static FILE *swrap_fopen(const char *name, const char *mode) +{ + FILE *fp; + + fp = libc_fopen(name, mode); + if (fp != NULL) { + int fd = fileno(fp); + + swrap_remove_stale(fd); + } + + return fp; +} + +FILE *fopen(const char *name, const char *mode) +{ + return swrap_fopen(name, mode); +} + +/**************************************************************************** + * OPEN + ***************************************************************************/ + +static int swrap_vopen(const char *pathname, int flags, va_list ap) +{ + int ret; + + ret = libc_vopen(pathname, flags, ap); + if (ret != -1) { + /* + * There are methods for closing descriptors (libc-internal code + * paths, direct syscalls) which close descriptors in ways that + * we can't intercept, so try to recover when we notice that + * that's happened + */ + swrap_remove_stale(ret); + } + return ret; +} + +int open(const char *pathname, int flags, ...) +{ + va_list ap; + int fd; + + va_start(ap, flags); + fd = swrap_vopen(pathname, flags, ap); + va_end(ap); + + return fd; +} + +/**************************************************************************** + * GETPEERNAME + ***************************************************************************/ + +static int swrap_getpeername(int s, struct sockaddr *name, socklen_t *addrlen) +{ + struct socket_info *si = find_socket_info(s); + socklen_t len; + + if (!si) { + return libc_getpeername(s, name, addrlen); + } + + if (si->peername.sa_socklen == 0) + { + errno = ENOTCONN; + return -1; + } + + len = MIN(*addrlen, si->peername.sa_socklen); + if (len == 0) { + return 0; + } + + memcpy(name, &si->peername.sa.ss, len); + *addrlen = si->peername.sa_socklen; + + return 0; +} + +#ifdef HAVE_ACCEPT_PSOCKLEN_T +int getpeername(int s, struct sockaddr *name, Psocklen_t addrlen) +#else +int getpeername(int s, struct sockaddr *name, socklen_t *addrlen) +#endif +{ + return swrap_getpeername(s, name, (socklen_t *)addrlen); +} + +/**************************************************************************** + * GETSOCKNAME + ***************************************************************************/ + +static int swrap_getsockname(int s, struct sockaddr *name, socklen_t *addrlen) +{ + struct socket_info *si = find_socket_info(s); + socklen_t len; + + if (!si) { + return libc_getsockname(s, name, addrlen); + } + + len = MIN(*addrlen, si->myname.sa_socklen); + if (len == 0) { + return 0; + } + + memcpy(name, &si->myname.sa.ss, len); + *addrlen = si->myname.sa_socklen; + + return 0; +} + +#ifdef HAVE_ACCEPT_PSOCKLEN_T +int getsockname(int s, struct sockaddr *name, Psocklen_t addrlen) +#else +int getsockname(int s, struct sockaddr *name, socklen_t *addrlen) +#endif +{ + return swrap_getsockname(s, name, (socklen_t *)addrlen); +} + +/**************************************************************************** + * GETSOCKOPT + ***************************************************************************/ + +#ifndef SO_PROTOCOL +# ifdef SO_PROTOTYPE /* The Solaris name */ +# define SO_PROTOCOL SO_PROTOTYPE +# endif /* SO_PROTOTYPE */ +#endif /* SO_PROTOCOL */ + +static int swrap_getsockopt(int s, int level, int optname, + void *optval, socklen_t *optlen) +{ + struct socket_info *si = find_socket_info(s); + + if (!si) { + return libc_getsockopt(s, + level, + optname, + optval, + optlen); + } + + if (level == SOL_SOCKET) { + switch (optname) { +#ifdef SO_DOMAIN + case SO_DOMAIN: + if (optval == NULL || optlen == NULL || + *optlen < (socklen_t)sizeof(int)) { + errno = EINVAL; + return -1; + } + + *optlen = sizeof(int); + *(int *)optval = si->family; + return 0; +#endif /* SO_DOMAIN */ + +#ifdef SO_PROTOCOL + case SO_PROTOCOL: + if (optval == NULL || optlen == NULL || + *optlen < (socklen_t)sizeof(int)) { + errno = EINVAL; + return -1; + } + + *optlen = sizeof(int); + *(int *)optval = si->protocol; + return 0; +#endif /* SO_PROTOCOL */ + case SO_TYPE: + if (optval == NULL || optlen == NULL || + *optlen < (socklen_t)sizeof(int)) { + errno = EINVAL; + return -1; + } + + *optlen = sizeof(int); + *(int *)optval = si->type; + return 0; + default: + return libc_getsockopt(s, + level, + optname, + optval, + optlen); + } + } else if (level == IPPROTO_TCP) { + switch (optname) { +#ifdef TCP_NODELAY + case TCP_NODELAY: + /* + * This enables sending packets directly out over TCP. + * As a unix socket is doing that any way, report it as + * enabled. + */ + if (optval == NULL || optlen == NULL || + *optlen < (socklen_t)sizeof(int)) { + errno = EINVAL; + return -1; + } + + *optlen = sizeof(int); + *(int *)optval = si->tcp_nodelay; + + return 0; +#endif /* TCP_NODELAY */ + default: + break; + } + } + + errno = ENOPROTOOPT; + return -1; +} + +#ifdef HAVE_ACCEPT_PSOCKLEN_T +int getsockopt(int s, int level, int optname, void *optval, Psocklen_t optlen) +#else +int getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen) +#endif +{ + return swrap_getsockopt(s, level, optname, optval, (socklen_t *)optlen); +} + +/**************************************************************************** + * SETSOCKOPT + ***************************************************************************/ + +static int swrap_setsockopt(int s, int level, int optname, + const void *optval, socklen_t optlen) +{ + struct socket_info *si = find_socket_info(s); + + if (!si) { + return libc_setsockopt(s, + level, + optname, + optval, + optlen); + } + + if (level == SOL_SOCKET) { + return libc_setsockopt(s, + level, + optname, + optval, + optlen); + } else if (level == IPPROTO_TCP) { + switch (optname) { +#ifdef TCP_NODELAY + case TCP_NODELAY: { + int i; + + /* + * This enables sending packets directly out over TCP. + * A unix socket is doing that any way. + */ + if (optval == NULL || optlen == 0 || + optlen < (socklen_t)sizeof(int)) { + errno = EINVAL; + return -1; + } + + i = *discard_const_p(int, optval); + if (i != 0 && i != 1) { + errno = EINVAL; + return -1; + } + si->tcp_nodelay = i; + + return 0; + } +#endif /* TCP_NODELAY */ + default: + break; + } + } + + switch (si->family) { + case AF_INET: + if (level == IPPROTO_IP) { +#ifdef IP_PKTINFO + if (optname == IP_PKTINFO) { + si->pktinfo = AF_INET; + } +#endif /* IP_PKTINFO */ + } + return 0; +#ifdef HAVE_IPV6 + case AF_INET6: + if (level == IPPROTO_IPV6) { +#ifdef IPV6_RECVPKTINFO + if (optname == IPV6_RECVPKTINFO) { + si->pktinfo = AF_INET6; + } +#endif /* IPV6_PKTINFO */ + } + return 0; +#endif + default: + errno = ENOPROTOOPT; + return -1; + } +} + +int setsockopt(int s, int level, int optname, + const void *optval, socklen_t optlen) +{ + return swrap_setsockopt(s, level, optname, optval, optlen); +} + +/**************************************************************************** + * IOCTL + ***************************************************************************/ + +static int swrap_vioctl(int s, unsigned long int r, va_list va) +{ + struct socket_info *si = find_socket_info(s); + va_list ap; + int value; + int rc; + + if (!si) { + return libc_vioctl(s, r, va); + } + + va_copy(ap, va); + + rc = libc_vioctl(s, r, va); + + switch (r) { + case FIONREAD: + value = *((int *)va_arg(ap, int *)); + + if (rc == -1 && errno != EAGAIN && errno != ENOBUFS) { + swrap_pcap_dump_packet(si, NULL, SWRAP_PENDING_RST, NULL, 0); + } else if (value == 0) { /* END OF FILE */ + swrap_pcap_dump_packet(si, NULL, SWRAP_PENDING_RST, NULL, 0); + } + break; + } + + va_end(ap); + + return rc; +} + +#ifdef HAVE_IOCTL_INT +int ioctl(int s, int r, ...) +#else +int ioctl(int s, unsigned long int r, ...) +#endif +{ + va_list va; + int rc; + + va_start(va, r); + + rc = swrap_vioctl(s, (unsigned long int) r, va); + + va_end(va); + + return rc; +} + +/***************** + * CMSG + *****************/ + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + +#ifndef CMSG_ALIGN +# ifdef _ALIGN /* BSD */ +#define CMSG_ALIGN _ALIGN +# else +#define CMSG_ALIGN(len) (((len) + sizeof(size_t) - 1) & ~(sizeof(size_t) - 1)) +# endif /* _ALIGN */ +#endif /* CMSG_ALIGN */ + +/** + * @brief Add a cmsghdr to a msghdr. + * + * This is an function to add any type of cmsghdr. It will operate on the + * msg->msg_control and msg->msg_controllen you pass in by adapting them to + * the buffer position after the added cmsg element. Hence, this function is + * intended to be used with an intermediate msghdr and not on the original + * one handed in by the client. + * + * @param[in] msg The msghdr to which to add the cmsg. + * + * @param[in] level The cmsg level to set. + * + * @param[in] type The cmsg type to set. + * + * @param[in] data The cmsg data to set. + * + * @param[in] len the length of the data to set. + */ +static void swrap_msghdr_add_cmsghdr(struct msghdr *msg, + int level, + int type, + const void *data, + size_t len) +{ + size_t cmlen = CMSG_LEN(len); + size_t cmspace = CMSG_SPACE(len); + uint8_t cmbuf[cmspace]; + void *cast_ptr = (void *)cmbuf; + struct cmsghdr *cm = (struct cmsghdr *)cast_ptr; + uint8_t *p; + + memset(cmbuf, 0, cmspace); + + if (msg->msg_controllen < cmlen) { + cmlen = msg->msg_controllen; + msg->msg_flags |= MSG_CTRUNC; + } + + if (msg->msg_controllen < cmspace) { + cmspace = msg->msg_controllen; + } + + /* + * We copy the full input data into an intermediate cmsghdr first + * in order to more easily cope with truncation. + */ + cm->cmsg_len = cmlen; + cm->cmsg_level = level; + cm->cmsg_type = type; + memcpy(CMSG_DATA(cm), data, len); + + /* + * We now copy the possibly truncated buffer. + * We copy cmlen bytes, but consume cmspace bytes, + * leaving the possible padding uninitialiazed. + */ + p = (uint8_t *)msg->msg_control; + memcpy(p, cm, cmlen); + p += cmspace; + msg->msg_control = p; + msg->msg_controllen -= cmspace; + + return; +} + +static int swrap_msghdr_add_pktinfo(struct socket_info *si, + struct msghdr *msg) +{ + /* Add packet info */ + switch (si->pktinfo) { +#if defined(IP_PKTINFO) && (defined(HAVE_STRUCT_IN_PKTINFO) || defined(IP_RECVDSTADDR)) + case AF_INET: { + struct sockaddr_in *sin; +#if defined(HAVE_STRUCT_IN_PKTINFO) + struct in_pktinfo pkt; +#elif defined(IP_RECVDSTADDR) + struct in_addr pkt; +#endif + + if (si->bindname.sa_socklen == sizeof(struct sockaddr_in)) { + sin = &si->bindname.sa.in; + } else { + if (si->myname.sa_socklen != sizeof(struct sockaddr_in)) { + return 0; + } + sin = &si->myname.sa.in; + } + + ZERO_STRUCT(pkt); + +#if defined(HAVE_STRUCT_IN_PKTINFO) + pkt.ipi_ifindex = socket_wrapper_default_iface(); + pkt.ipi_addr.s_addr = sin->sin_addr.s_addr; +#elif defined(IP_RECVDSTADDR) + pkt = sin->sin_addr; +#endif + + swrap_msghdr_add_cmsghdr(msg, IPPROTO_IP, IP_PKTINFO, + &pkt, sizeof(pkt)); + + break; + } +#endif /* IP_PKTINFO */ +#if defined(HAVE_IPV6) + case AF_INET6: { +#if defined(IPV6_PKTINFO) && defined(HAVE_STRUCT_IN6_PKTINFO) + struct sockaddr_in6 *sin6; + struct in6_pktinfo pkt6; + + if (si->bindname.sa_socklen == sizeof(struct sockaddr_in6)) { + sin6 = &si->bindname.sa.in6; + } else { + if (si->myname.sa_socklen != sizeof(struct sockaddr_in6)) { + return 0; + } + sin6 = &si->myname.sa.in6; + } + + ZERO_STRUCT(pkt6); + + pkt6.ipi6_ifindex = socket_wrapper_default_iface(); + pkt6.ipi6_addr = sin6->sin6_addr; + + swrap_msghdr_add_cmsghdr(msg, IPPROTO_IPV6, IPV6_PKTINFO, + &pkt6, sizeof(pkt6)); +#endif /* HAVE_STRUCT_IN6_PKTINFO */ + + break; + } +#endif /* IPV6_PKTINFO */ + default: + return -1; + } + + return 0; +} + +static int swrap_msghdr_add_socket_info(struct socket_info *si, + struct msghdr *omsg) +{ + int rc = 0; + + if (si->pktinfo > 0) { + rc = swrap_msghdr_add_pktinfo(si, omsg); + } + + return rc; +} + +static int swrap_sendmsg_copy_cmsg(struct cmsghdr *cmsg, + uint8_t **cm_data, + size_t *cm_data_space); +static int swrap_sendmsg_filter_cmsg_socket(struct cmsghdr *cmsg, + uint8_t **cm_data, + size_t *cm_data_space); + +static int swrap_sendmsg_filter_cmsghdr(struct msghdr *msg, + uint8_t **cm_data, + size_t *cm_data_space) { + struct cmsghdr *cmsg; + int rc = -1; + + /* Nothing to do */ + if (msg->msg_controllen == 0 || msg->msg_control == NULL) { + return 0; + } + + for (cmsg = CMSG_FIRSTHDR(msg); + cmsg != NULL; + cmsg = CMSG_NXTHDR(msg, cmsg)) { + switch (cmsg->cmsg_level) { + case IPPROTO_IP: + rc = swrap_sendmsg_filter_cmsg_socket(cmsg, + cm_data, + cm_data_space); + break; + default: + rc = swrap_sendmsg_copy_cmsg(cmsg, + cm_data, + cm_data_space); + break; + } + } + + return rc; +} + +static int swrap_sendmsg_copy_cmsg(struct cmsghdr *cmsg, + uint8_t **cm_data, + size_t *cm_data_space) +{ + size_t cmspace; + uint8_t *p; + + cmspace = *cm_data_space + CMSG_ALIGN(cmsg->cmsg_len); + + p = realloc((*cm_data), cmspace); + if (p == NULL) { + return -1; + } + (*cm_data) = p; + + p = (*cm_data) + (*cm_data_space); + *cm_data_space = cmspace; + + memcpy(p, cmsg, cmsg->cmsg_len); + + return 0; +} + +static int swrap_sendmsg_filter_cmsg_pktinfo(struct cmsghdr *cmsg, + uint8_t **cm_data, + size_t *cm_data_space); + + +static int swrap_sendmsg_filter_cmsg_socket(struct cmsghdr *cmsg, + uint8_t **cm_data, + size_t *cm_data_space) +{ + int rc = -1; + + switch(cmsg->cmsg_type) { +#ifdef IP_PKTINFO + case IP_PKTINFO: + rc = swrap_sendmsg_filter_cmsg_pktinfo(cmsg, + cm_data, + cm_data_space); + break; +#endif +#ifdef IPV6_PKTINFO + case IPV6_PKTINFO: + rc = swrap_sendmsg_filter_cmsg_pktinfo(cmsg, + cm_data, + cm_data_space); + break; +#endif + default: + break; + } + + return rc; +} + +static int swrap_sendmsg_filter_cmsg_pktinfo(struct cmsghdr *cmsg, + uint8_t **cm_data, + size_t *cm_data_space) +{ + (void)cmsg; /* unused */ + (void)cm_data; /* unused */ + (void)cm_data_space; /* unused */ + + /* + * Passing a IP pktinfo to a unix socket might be rejected by the + * Kernel, at least on FreeBSD. So skip this cmsg. + */ + return 0; +} +#endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL */ + +static ssize_t swrap_sendmsg_before(int fd, + struct socket_info *si, + struct msghdr *msg, + struct iovec *tmp_iov, + struct sockaddr_un *tmp_un, + const struct sockaddr_un **to_un, + const struct sockaddr **to, + int *bcast) +{ + size_t i, len = 0; + ssize_t ret; + + if (to_un) { + *to_un = NULL; + } + if (to) { + *to = NULL; + } + if (bcast) { + *bcast = 0; + } + + switch (si->type) { + case SOCK_STREAM: { + unsigned long mtu; + + if (!si->connected) { + errno = ENOTCONN; + return -1; + } + + if (msg->msg_iovlen == 0) { + break; + } + + mtu = socket_wrapper_mtu(); + for (i = 0; i < (size_t)msg->msg_iovlen; i++) { + size_t nlen; + nlen = len + msg->msg_iov[i].iov_len; + if (nlen > mtu) { + break; + } + } + msg->msg_iovlen = i; + if (msg->msg_iovlen == 0) { + *tmp_iov = msg->msg_iov[0]; + tmp_iov->iov_len = MIN((size_t)tmp_iov->iov_len, + (size_t)mtu); + msg->msg_iov = tmp_iov; + msg->msg_iovlen = 1; + } + break; + } + case SOCK_DGRAM: + if (si->connected) { + if (msg->msg_name != NULL) { + /* + * We are dealing with unix sockets and if we + * are connected, we should only talk to the + * connected unix path. Using the fd to send + * to another server would be hard to achieve. + */ + msg->msg_name = NULL; + msg->msg_namelen = 0; + } + } else { + const struct sockaddr *msg_name; + msg_name = (const struct sockaddr *)msg->msg_name; + + if (msg_name == NULL) { + errno = ENOTCONN; + return -1; + } + + + ret = sockaddr_convert_to_un(si, msg_name, msg->msg_namelen, + tmp_un, 0, bcast); + if (ret == -1) return -1; + + if (to_un) { + *to_un = tmp_un; + } + if (to) { + *to = msg_name; + } + msg->msg_name = tmp_un; + msg->msg_namelen = sizeof(*tmp_un); + } + + if (si->bound == 0) { + ret = swrap_auto_bind(fd, si, si->family); + if (ret == -1) { + if (errno == ENOTSOCK) { + swrap_remove_stale(fd); + return -ENOTSOCK; + } else { + SWRAP_LOG(SWRAP_LOG_ERROR, "swrap_sendmsg_before failed"); + return -1; + } + } + } + + if (!si->defer_connect) { + break; + } + + ret = sockaddr_convert_to_un(si, + &si->peername.sa.s, + si->peername.sa_socklen, + tmp_un, + 0, + NULL); + if (ret == -1) return -1; + + ret = libc_connect(fd, + (struct sockaddr *)(void *)tmp_un, + sizeof(*tmp_un)); + + /* to give better errors */ + if (ret == -1 && errno == ENOENT) { + errno = EHOSTUNREACH; + } + + if (ret == -1) { + return ret; + } + + si->defer_connect = 0; + break; + default: + errno = EHOSTUNREACH; + return -1; + } + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + if (msg->msg_controllen > 0 && msg->msg_control != NULL) { + uint8_t *cmbuf = NULL; + size_t cmlen = 0; + + ret = swrap_sendmsg_filter_cmsghdr(msg, &cmbuf, &cmlen); + if (ret < 0) { + free(cmbuf); + return -1; + } + + if (cmlen == 0) { + msg->msg_controllen = 0; + msg->msg_control = NULL; + } else if (cmlen < msg->msg_controllen && cmbuf != NULL) { + memcpy(msg->msg_control, cmbuf, cmlen); + msg->msg_controllen = cmlen; + } + free(cmbuf); + } +#endif + + return 0; +} + +static void swrap_sendmsg_after(int fd, + struct socket_info *si, + struct msghdr *msg, + const struct sockaddr *to, + ssize_t ret) +{ + int saved_errno = errno; + size_t i, len = 0; + uint8_t *buf; + off_t ofs = 0; + size_t avail = 0; + size_t remain; + + /* to give better errors */ + if (ret == -1) { + if (saved_errno == ENOENT) { + saved_errno = EHOSTUNREACH; + } else if (saved_errno == ENOTSOCK) { + /* If the fd is not a socket, remove it */ + swrap_remove_stale(fd); + } + } + + for (i = 0; i < (size_t)msg->msg_iovlen; i++) { + avail += msg->msg_iov[i].iov_len; + } + + if (ret == -1) { + remain = MIN(80, avail); + } else { + remain = ret; + } + + /* we capture it as one single packet */ + buf = (uint8_t *)malloc(remain); + if (!buf) { + /* we just not capture the packet */ + errno = saved_errno; + return; + } + + for (i = 0; i < (size_t)msg->msg_iovlen; i++) { + size_t this_time = MIN(remain, (size_t)msg->msg_iov[i].iov_len); + memcpy(buf + ofs, + msg->msg_iov[i].iov_base, + this_time); + ofs += this_time; + remain -= this_time; + } + len = ofs; + + switch (si->type) { + case SOCK_STREAM: + if (ret == -1) { + swrap_pcap_dump_packet(si, NULL, SWRAP_SEND, buf, len); + swrap_pcap_dump_packet(si, NULL, SWRAP_SEND_RST, NULL, 0); + } else { + swrap_pcap_dump_packet(si, NULL, SWRAP_SEND, buf, len); + } + break; + + case SOCK_DGRAM: + if (si->connected) { + to = &si->peername.sa.s; + } + if (ret == -1) { + swrap_pcap_dump_packet(si, to, SWRAP_SENDTO, buf, len); + swrap_pcap_dump_packet(si, to, SWRAP_SENDTO_UNREACH, buf, len); + } else { + swrap_pcap_dump_packet(si, to, SWRAP_SENDTO, buf, len); + } + break; + } + + free(buf); + errno = saved_errno; +} + +static int swrap_recvmsg_before(int fd, + struct socket_info *si, + struct msghdr *msg, + struct iovec *tmp_iov) +{ + size_t i, len = 0; + ssize_t ret; + + (void)fd; /* unused */ + + switch (si->type) { + case SOCK_STREAM: { + unsigned int mtu; + if (!si->connected) { + errno = ENOTCONN; + return -1; + } + + if (msg->msg_iovlen == 0) { + break; + } + + mtu = socket_wrapper_mtu(); + for (i = 0; i < (size_t)msg->msg_iovlen; i++) { + size_t nlen; + nlen = len + msg->msg_iov[i].iov_len; + if (nlen > mtu) { + break; + } + } + msg->msg_iovlen = i; + if (msg->msg_iovlen == 0) { + *tmp_iov = msg->msg_iov[0]; + tmp_iov->iov_len = MIN((size_t)tmp_iov->iov_len, + (size_t)mtu); + msg->msg_iov = tmp_iov; + msg->msg_iovlen = 1; + } + break; + } + case SOCK_DGRAM: + if (msg->msg_name == NULL) { + errno = EINVAL; + return -1; + } + + if (msg->msg_iovlen == 0) { + break; + } + + if (si->bound == 0) { + ret = swrap_auto_bind(fd, si, si->family); + if (ret == -1) { + /* + * When attempting to read or write to a + * descriptor, if an underlying autobind fails + * because it's not a socket, stop intercepting + * uses of that descriptor. + */ + if (errno == ENOTSOCK) { + swrap_remove_stale(fd); + return -ENOTSOCK; + } else { + SWRAP_LOG(SWRAP_LOG_ERROR, + "swrap_recvmsg_before failed"); + return -1; + } + } + } + break; + default: + errno = EHOSTUNREACH; + return -1; + } + + return 0; +} + +static int swrap_recvmsg_after(int fd, + struct socket_info *si, + struct msghdr *msg, + const struct sockaddr_un *un_addr, + socklen_t un_addrlen, + ssize_t ret) +{ + int saved_errno = errno; + size_t i; + uint8_t *buf = NULL; + off_t ofs = 0; + size_t avail = 0; + size_t remain; + int rc; + + /* to give better errors */ + if (ret == -1) { + if (saved_errno == ENOENT) { + saved_errno = EHOSTUNREACH; + } else if (saved_errno == ENOTSOCK) { + /* If the fd is not a socket, remove it */ + swrap_remove_stale(fd); + } + } + + for (i = 0; i < (size_t)msg->msg_iovlen; i++) { + avail += msg->msg_iov[i].iov_len; + } + + /* Convert the socket address before we leave */ + if (si->type == SOCK_DGRAM && un_addr != NULL) { + rc = sockaddr_convert_from_un(si, + un_addr, + un_addrlen, + si->family, + msg->msg_name, + &msg->msg_namelen); + if (rc == -1) { + goto done; + } + } + + if (avail == 0) { + rc = 0; + goto done; + } + + if (ret == -1) { + remain = MIN(80, avail); + } else { + remain = ret; + } + + /* we capture it as one single packet */ + buf = (uint8_t *)malloc(remain); + if (buf == NULL) { + /* we just not capture the packet */ + errno = saved_errno; + return -1; + } + + for (i = 0; i < (size_t)msg->msg_iovlen; i++) { + size_t this_time = MIN(remain, (size_t)msg->msg_iov[i].iov_len); + memcpy(buf + ofs, + msg->msg_iov[i].iov_base, + this_time); + ofs += this_time; + remain -= this_time; + } + + switch (si->type) { + case SOCK_STREAM: + if (ret == -1 && saved_errno != EAGAIN && saved_errno != ENOBUFS) { + swrap_pcap_dump_packet(si, NULL, SWRAP_RECV_RST, NULL, 0); + } else if (ret == 0) { /* END OF FILE */ + swrap_pcap_dump_packet(si, NULL, SWRAP_RECV_RST, NULL, 0); + } else if (ret > 0) { + swrap_pcap_dump_packet(si, NULL, SWRAP_RECV, buf, ret); + } + break; + + case SOCK_DGRAM: + if (ret == -1) { + break; + } + + if (un_addr != NULL) { + swrap_pcap_dump_packet(si, + msg->msg_name, + SWRAP_RECVFROM, + buf, + ret); + } else { + swrap_pcap_dump_packet(si, + msg->msg_name, + SWRAP_RECV, + buf, + ret); + } + + break; + } + + rc = 0; +done: + free(buf); + errno = saved_errno; + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + if (rc == 0 && + msg->msg_controllen > 0 && + msg->msg_control != NULL) { + rc = swrap_msghdr_add_socket_info(si, msg); + if (rc < 0) { + return -1; + } + } +#endif + + return rc; +} + +/**************************************************************************** + * RECVFROM + ***************************************************************************/ + +static ssize_t swrap_recvfrom(int s, void *buf, size_t len, int flags, + struct sockaddr *from, socklen_t *fromlen) +{ + struct swrap_address from_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + ssize_t ret; + struct socket_info *si = find_socket_info(s); + struct swrap_address saddr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct msghdr msg; + struct iovec tmp; + int tret; + + if (!si) { + return libc_recvfrom(s, + buf, + len, + flags, + from, + fromlen); + } + + tmp.iov_base = buf; + tmp.iov_len = len; + + ZERO_STRUCT(msg); + if (from != NULL && fromlen != NULL) { + msg.msg_name = from; /* optional address */ + msg.msg_namelen = *fromlen; /* size of address */ + } else { + msg.msg_name = &saddr.sa.s; /* optional address */ + msg.msg_namelen = saddr.sa_socklen; /* size of address */ + } + msg.msg_iov = &tmp; /* scatter/gather array */ + msg.msg_iovlen = 1; /* # elements in msg_iov */ +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + tret = swrap_recvmsg_before(s, si, &msg, &tmp); + if (tret < 0) { + return -1; + } + + buf = msg.msg_iov[0].iov_base; + len = msg.msg_iov[0].iov_len; + + ret = libc_recvfrom(s, + buf, + len, + flags, + &from_addr.sa.s, + &from_addr.sa_socklen); + if (ret == -1) { + return ret; + } + + tret = swrap_recvmsg_after(s, + si, + &msg, + &from_addr.sa.un, + from_addr.sa_socklen, + ret); + if (tret != 0) { + return tret; + } + + if (from != NULL && fromlen != NULL) { + *fromlen = msg.msg_namelen; + } + + return ret; +} + +#ifdef HAVE_ACCEPT_PSOCKLEN_T +ssize_t recvfrom(int s, void *buf, size_t len, int flags, + struct sockaddr *from, Psocklen_t fromlen) +#else +ssize_t recvfrom(int s, void *buf, size_t len, int flags, + struct sockaddr *from, socklen_t *fromlen) +#endif +{ + return swrap_recvfrom(s, buf, len, flags, from, (socklen_t *)fromlen); +} + +/**************************************************************************** + * SENDTO + ***************************************************************************/ + +static ssize_t swrap_sendto(int s, const void *buf, size_t len, int flags, + const struct sockaddr *to, socklen_t tolen) +{ + struct msghdr msg; + struct iovec tmp; + struct swrap_address un_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + const struct sockaddr_un *to_un = NULL; + ssize_t ret; + int rc; + struct socket_info *si = find_socket_info(s); + int bcast = 0; + + if (!si) { + return libc_sendto(s, buf, len, flags, to, tolen); + } + + tmp.iov_base = discard_const_p(char, buf); + tmp.iov_len = len; + + ZERO_STRUCT(msg); + msg.msg_name = discard_const_p(struct sockaddr, to); /* optional address */ + msg.msg_namelen = tolen; /* size of address */ + msg.msg_iov = &tmp; /* scatter/gather array */ + msg.msg_iovlen = 1; /* # elements in msg_iov */ +#if HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + rc = swrap_sendmsg_before(s, + si, + &msg, + &tmp, + &un_addr.sa.un, + &to_un, + &to, + &bcast); + if (rc < 0) { + return -1; + } + + buf = msg.msg_iov[0].iov_base; + len = msg.msg_iov[0].iov_len; + + if (bcast) { +/* struct stat st; + unsigned int iface; */ + unsigned int prt = ntohs(((const struct sockaddr_in *)(const void *)to)->sin_port); + unsigned int remote_prt; + unsigned int in4_addr; + char type; + DIR *d; + struct dirent *dir; + +/* + type = SOCKET_TYPE_CHAR_UDP; + + for(iface=0; iface <= MAX_WRAPPED_INTERFACES; iface++) { + snprintf(un_addr.sa.un.sun_path, + sizeof(un_addr.sa.un.sun_path), + "%s/"SOCKET_FORMAT, + socket_wrapper_dir(), type, iface, prt); + if (stat(un_addr.sa.un.sun_path, &st) != 0) continue; + + / * ignore the any errors in broadcast sends * / + libc_sendto(s, + buf, + len, + flags, + &un_addr.sa.s, + un_addr.sa_socklen); + } +*/ + + d = opendir(socket_wrapper_dir()); + if (d) { + while ((dir = readdir(d)) != NULL) { + if (dir->d_name[0] == SOCKET_TYPE_CHAR_UDP_LONG) + /* TODO - use S_ISSOCK ? */ + if (sscanf(dir->d_name, SOCKET_FORMAT_LONG, &type, &in4_addr, &remote_prt) == 3) + if (prt == remote_prt) { + snprintf(un_addr.sa.un.sun_path, + sizeof(un_addr.sa.un.sun_path), + "%s/%s", + socket_wrapper_dir(),dir->d_name); + libc_sendto(s, + buf, + len, + flags, + &un_addr.sa.s, + un_addr.sa_socklen); + SWRAP_LOG(SWRAP_LOG_DEBUG,"send bcast packet to %s", dir->d_name); + } + } + closedir(d); + } + + swrap_pcap_dump_packet(si, to, SWRAP_SENDTO, buf, len); + + return len; + } + + /* + * If it is a dgram socket and we are connected, don't include the + * 'to' address. + */ + if (si->type == SOCK_DGRAM && si->connected) { + ret = libc_sendto(s, + buf, + len, + flags, + NULL, + 0); + } else { + ret = libc_sendto(s, + buf, + len, + flags, + (struct sockaddr *)msg.msg_name, + msg.msg_namelen); + } + + swrap_sendmsg_after(s, si, &msg, to, ret); + + return ret; +} + +ssize_t sendto(int s, const void *buf, size_t len, int flags, + const struct sockaddr *to, socklen_t tolen) +{ + return swrap_sendto(s, buf, len, flags, to, tolen); +} + +/**************************************************************************** + * READV + ***************************************************************************/ + +static ssize_t swrap_recv(int s, void *buf, size_t len, int flags) +{ + struct socket_info *si; + struct msghdr msg; + struct swrap_address saddr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct iovec tmp; + ssize_t ret; + int tret; + + si = find_socket_info(s); + if (si == NULL) { + return libc_recv(s, buf, len, flags); + } + + tmp.iov_base = buf; + tmp.iov_len = len; + + ZERO_STRUCT(msg); + msg.msg_name = &saddr.sa.s; /* optional address */ + msg.msg_namelen = saddr.sa_socklen; /* size of address */ + msg.msg_iov = &tmp; /* scatter/gather array */ + msg.msg_iovlen = 1; /* # elements in msg_iov */ +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + tret = swrap_recvmsg_before(s, si, &msg, &tmp); + if (tret < 0) { + return -1; + } + + buf = msg.msg_iov[0].iov_base; + len = msg.msg_iov[0].iov_len; + + ret = libc_recv(s, buf, len, flags); + + tret = swrap_recvmsg_after(s, si, &msg, NULL, 0, ret); + if (tret != 0) { + return tret; + } + + return ret; +} + +ssize_t recv(int s, void *buf, size_t len, int flags) +{ + return swrap_recv(s, buf, len, flags); +} + +/**************************************************************************** + * READ + ***************************************************************************/ + +static ssize_t swrap_read(int s, void *buf, size_t len) +{ + struct socket_info *si; + struct msghdr msg; + struct iovec tmp; + struct swrap_address saddr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + ssize_t ret; + int tret; + + si = find_socket_info(s); + if (si == NULL) { + return libc_read(s, buf, len); + } + + tmp.iov_base = buf; + tmp.iov_len = len; + + ZERO_STRUCT(msg); + msg.msg_name = &saddr.sa.ss; /* optional address */ + msg.msg_namelen = saddr.sa_socklen; /* size of address */ + msg.msg_iov = &tmp; /* scatter/gather array */ + msg.msg_iovlen = 1; /* # elements in msg_iov */ +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + tret = swrap_recvmsg_before(s, si, &msg, &tmp); + if (tret < 0) { + if (tret == -ENOTSOCK) { + return libc_read(s, buf, len); + } + return -1; + } + + buf = msg.msg_iov[0].iov_base; + len = msg.msg_iov[0].iov_len; + + ret = libc_read(s, buf, len); + + tret = swrap_recvmsg_after(s, si, &msg, NULL, 0, ret); + if (tret != 0) { + return tret; + } + + return ret; +} + +ssize_t read(int s, void *buf, size_t len) +{ + return swrap_read(s, buf, len); +} + +/**************************************************************************** + * WRITE + ***************************************************************************/ + +static ssize_t swrap_write(int s, const void *buf, size_t len) +{ + struct msghdr msg; + struct iovec tmp; + struct sockaddr_un un_addr; + ssize_t ret; + int rc; + struct socket_info *si; + + si = find_socket_info(s); + if (si == NULL) { + return libc_write(s, buf, len); + } + + tmp.iov_base = discard_const_p(char, buf); + tmp.iov_len = len; + + ZERO_STRUCT(msg); + msg.msg_name = NULL; /* optional address */ + msg.msg_namelen = 0; /* size of address */ + msg.msg_iov = &tmp; /* scatter/gather array */ + msg.msg_iovlen = 1; /* # elements in msg_iov */ +#if HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + rc = swrap_sendmsg_before(s, si, &msg, &tmp, &un_addr, NULL, NULL, NULL); + if (rc < 0) { + return -1; + } + + buf = msg.msg_iov[0].iov_base; + len = msg.msg_iov[0].iov_len; + + ret = libc_write(s, buf, len); + + swrap_sendmsg_after(s, si, &msg, NULL, ret); + + return ret; +} + +ssize_t write(int s, const void *buf, size_t len) +{ + return swrap_write(s, buf, len); +} + +/**************************************************************************** + * SEND + ***************************************************************************/ + +static ssize_t swrap_send(int s, const void *buf, size_t len, int flags) +{ + struct msghdr msg; + struct iovec tmp; + struct sockaddr_un un_addr; + ssize_t ret; + int rc; + struct socket_info *si = find_socket_info(s); + + if (!si) { + return libc_send(s, buf, len, flags); + } + + tmp.iov_base = discard_const_p(char, buf); + tmp.iov_len = len; + + ZERO_STRUCT(msg); + msg.msg_name = NULL; /* optional address */ + msg.msg_namelen = 0; /* size of address */ + msg.msg_iov = &tmp; /* scatter/gather array */ + msg.msg_iovlen = 1; /* # elements in msg_iov */ +#if HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + rc = swrap_sendmsg_before(s, si, &msg, &tmp, &un_addr, NULL, NULL, NULL); + if (rc < 0) { + return -1; + } + + buf = msg.msg_iov[0].iov_base; + len = msg.msg_iov[0].iov_len; + + ret = libc_send(s, buf, len, flags); + + swrap_sendmsg_after(s, si, &msg, NULL, ret); + + return ret; +} + +ssize_t send(int s, const void *buf, size_t len, int flags) +{ + return swrap_send(s, buf, len, flags); +} + +/**************************************************************************** + * RECVMSG + ***************************************************************************/ + +static ssize_t swrap_recvmsg(int s, struct msghdr *omsg, int flags) +{ + struct swrap_address from_addr = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + struct swrap_address convert_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct socket_info *si; + struct msghdr msg; + struct iovec tmp; +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + size_t msg_ctrllen_filled; + size_t msg_ctrllen_left; +#endif + + ssize_t ret; + int rc; + + si = find_socket_info(s); + if (si == NULL) { + return libc_recvmsg(s, omsg, flags); + } + + tmp.iov_base = NULL; + tmp.iov_len = 0; + + ZERO_STRUCT(msg); + msg.msg_name = &from_addr.sa; /* optional address */ + msg.msg_namelen = from_addr.sa_socklen; /* size of address */ + msg.msg_iov = omsg->msg_iov; /* scatter/gather array */ + msg.msg_iovlen = omsg->msg_iovlen; /* # elements in msg_iov */ +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg_ctrllen_filled = 0; + msg_ctrllen_left = omsg->msg_controllen; + + msg.msg_control = omsg->msg_control; /* ancillary data, see below */ + msg.msg_controllen = omsg->msg_controllen; /* ancillary data buffer len */ + msg.msg_flags = omsg->msg_flags; /* flags on received message */ +#endif + + rc = swrap_recvmsg_before(s, si, &msg, &tmp); + if (rc < 0) { + return -1; + } + + ret = libc_recvmsg(s, &msg, flags); + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg_ctrllen_filled += msg.msg_controllen; + msg_ctrllen_left -= msg.msg_controllen; + + if (omsg->msg_control != NULL) { + uint8_t *p; + + p = omsg->msg_control; + p += msg_ctrllen_filled; + + msg.msg_control = p; + msg.msg_controllen = msg_ctrllen_left; + } else { + msg.msg_control = NULL; + msg.msg_controllen = 0; + } +#endif + + /* + * We convert the unix address to a IP address so we need a buffer + * which can store the address in case of SOCK_DGRAM, see below. + */ + msg.msg_name = &convert_addr.sa; + msg.msg_namelen = convert_addr.sa_socklen; + + rc = swrap_recvmsg_after(s, + si, + &msg, + &from_addr.sa.un, + from_addr.sa_socklen, + ret); + if (rc != 0) { + return rc; + } + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + if (omsg->msg_control != NULL) { + /* msg.msg_controllen = space left */ + msg_ctrllen_left = msg.msg_controllen; + msg_ctrllen_filled = omsg->msg_controllen - msg_ctrllen_left; + } + + /* Update the original message length */ + omsg->msg_controllen = msg_ctrllen_filled; + omsg->msg_flags = msg.msg_flags; +#endif + omsg->msg_iovlen = msg.msg_iovlen; + + /* + * From the manpage: + * + * The msg_name field points to a caller-allocated buffer that is + * used to return the source address if the socket is unconnected. The + * caller should set msg_namelen to the size of this buffer before this + * call; upon return from a successful call, msg_name will contain the + * length of the returned address. If the application does not need + * to know the source address, msg_name can be specified as NULL. + */ + if (si->type == SOCK_STREAM) { + omsg->msg_namelen = 0; + } else if (omsg->msg_name != NULL && + omsg->msg_namelen != 0 && + omsg->msg_namelen >= msg.msg_namelen) { + memcpy(omsg->msg_name, msg.msg_name, msg.msg_namelen); + omsg->msg_namelen = msg.msg_namelen; + } + + return ret; +} + +ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags) +{ + return swrap_recvmsg(sockfd, msg, flags); +} + +/**************************************************************************** + * SENDMSG + ***************************************************************************/ + +static ssize_t swrap_sendmsg(int s, const struct msghdr *omsg, int flags) +{ + struct msghdr msg; + struct iovec tmp; + struct sockaddr_un un_addr; + const struct sockaddr_un *to_un = NULL; + const struct sockaddr *to = NULL; + ssize_t ret; + int rc; + struct socket_info *si = find_socket_info(s); + int bcast = 0; + + if (!si) { + return libc_sendmsg(s, omsg, flags); + } + + ZERO_STRUCT(un_addr); + + tmp.iov_base = NULL; + tmp.iov_len = 0; + + ZERO_STRUCT(msg); + + if (si->connected == 0) { + msg.msg_name = omsg->msg_name; /* optional address */ + msg.msg_namelen = omsg->msg_namelen; /* size of address */ + } + msg.msg_iov = omsg->msg_iov; /* scatter/gather array */ + msg.msg_iovlen = omsg->msg_iovlen; /* # elements in msg_iov */ +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + if (msg.msg_controllen > 0 && msg.msg_control != NULL) { + /* omsg is a const so use a local buffer for modifications */ + uint8_t cmbuf[omsg->msg_controllen]; + + memcpy(cmbuf, omsg->msg_control, omsg->msg_controllen); + + msg.msg_control = cmbuf; /* ancillary data, see below */ + msg.msg_controllen = omsg->msg_controllen; /* ancillary data buffer len */ + } + msg.msg_flags = omsg->msg_flags; /* flags on received message */ +#endif + + rc = swrap_sendmsg_before(s, si, &msg, &tmp, &un_addr, &to_un, &to, &bcast); + if (rc < 0) { + return -1; + } + + if (bcast) { +// struct stat st; +// unsigned int iface; + unsigned int prt = ntohs(((const struct sockaddr_in *)(const void *)to)->sin_port); + char type; + size_t i, len = 0; + uint8_t *buf; + off_t ofs = 0; + size_t avail = 0; + size_t remain; + + unsigned int remote_prt; + unsigned int in4_addr; + DIR *d; + struct dirent *dir; + + + for (i = 0; i < (size_t)msg.msg_iovlen; i++) { + avail += msg.msg_iov[i].iov_len; + } + + len = avail; + remain = avail; + + /* we capture it as one single packet */ + buf = (uint8_t *)malloc(remain); + if (!buf) { + return -1; + } + + for (i = 0; i < (size_t)msg.msg_iovlen; i++) { + size_t this_time = MIN(remain, (size_t)msg.msg_iov[i].iov_len); + memcpy(buf + ofs, + msg.msg_iov[i].iov_base, + this_time); + ofs += this_time; + remain -= this_time; + } + + /* + type = SOCKET_TYPE_CHAR_UDP; + + for(iface=0; iface <= MAX_WRAPPED_INTERFACES; iface++) { + snprintf(un_addr.sun_path, sizeof(un_addr.sun_path), "%s/"SOCKET_FORMAT, + socket_wrapper_dir(), type, iface, prt); + if (stat(un_addr.sun_path, &st) != 0) continue; + + msg.msg_name = &un_addr; / * optional address * / + msg.msg_namelen = sizeof(un_addr); / * size of address * / + + / * ignore the any errors in broadcast sends * / + libc_sendmsg(s, &msg, flags); + } + */ + + + d = opendir(socket_wrapper_dir()); + if (d) { + while ((dir = readdir(d)) != NULL) { + if (dir->d_name[0] == SOCKET_TYPE_CHAR_UDP_LONG) + /* TODO - use S_ISSOCK ? */ + if (sscanf(dir->d_name, SOCKET_FORMAT_LONG, &type, &in4_addr, &remote_prt) == 3) + if (prt == remote_prt) { + snprintf(un_addr.sun_path, + sizeof(un_addr.sun_path), + "%s/%s", + socket_wrapper_dir(),dir->d_name); + libc_sendmsg(s, &msg, flags); + SWRAP_LOG(SWRAP_LOG_DEBUG,"send bcast packet to %s", dir->d_name); + } + } + closedir(d); + } + + swrap_pcap_dump_packet(si, to, SWRAP_SENDTO, buf, len); + free(buf); + + return len; + } + + ret = libc_sendmsg(s, &msg, flags); + + swrap_sendmsg_after(s, si, &msg, to, ret); + + return ret; +} + +ssize_t sendmsg(int s, const struct msghdr *omsg, int flags) +{ + return swrap_sendmsg(s, omsg, flags); +} + +/**************************************************************************** + * READV + ***************************************************************************/ + +static ssize_t swrap_readv(int s, const struct iovec *vector, int count) +{ + struct socket_info *si; + struct msghdr msg; + struct iovec tmp; + struct swrap_address saddr = { + .sa_socklen = sizeof(struct sockaddr_storage) + }; + ssize_t ret; + int rc; + + si = find_socket_info(s); + if (si == NULL) { + return libc_readv(s, vector, count); + } + + tmp.iov_base = NULL; + tmp.iov_len = 0; + + ZERO_STRUCT(msg); + msg.msg_name = &saddr.sa.s; /* optional address */ + msg.msg_namelen = saddr.sa_socklen; /* size of address */ + msg.msg_iov = discard_const_p(struct iovec, vector); /* scatter/gather array */ + msg.msg_iovlen = count; /* # elements in msg_iov */ +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + rc = swrap_recvmsg_before(s, si, &msg, &tmp); + if (rc < 0) { + if (rc == -ENOTSOCK) { + return libc_readv(s, vector, count); + } + return -1; + } + + ret = libc_readv(s, msg.msg_iov, msg.msg_iovlen); + + rc = swrap_recvmsg_after(s, si, &msg, NULL, 0, ret); + if (rc != 0) { + return rc; + } + + return ret; +} + +ssize_t readv(int s, const struct iovec *vector, int count) +{ + return swrap_readv(s, vector, count); +} + +/**************************************************************************** + * WRITEV + ***************************************************************************/ + +static ssize_t swrap_writev(int s, const struct iovec *vector, int count) +{ + struct msghdr msg; + struct iovec tmp; + struct sockaddr_un un_addr; + ssize_t ret; + int rc; + struct socket_info *si = find_socket_info(s); + + if (!si) { + return libc_writev(s, vector, count); + } + + tmp.iov_base = NULL; + tmp.iov_len = 0; + + ZERO_STRUCT(msg); + msg.msg_name = NULL; /* optional address */ + msg.msg_namelen = 0; /* size of address */ + msg.msg_iov = discard_const_p(struct iovec, vector); /* scatter/gather array */ + msg.msg_iovlen = count; /* # elements in msg_iov */ +#if HAVE_STRUCT_MSGHDR_MSG_CONTROL + msg.msg_control = NULL; /* ancillary data, see below */ + msg.msg_controllen = 0; /* ancillary data buffer len */ + msg.msg_flags = 0; /* flags on received message */ +#endif + + rc = swrap_sendmsg_before(s, si, &msg, &tmp, &un_addr, NULL, NULL, NULL); + if (rc < 0) { + if (rc == -ENOTSOCK) { + return libc_readv(s, vector, count); + } + return -1; + } + + ret = libc_writev(s, msg.msg_iov, msg.msg_iovlen); + + swrap_sendmsg_after(s, si, &msg, NULL, ret); + + return ret; +} + +ssize_t writev(int s, const struct iovec *vector, int count) +{ + return swrap_writev(s, vector, count); +} + +/**************************** + * CLOSE + ***************************/ + +static int swrap_close(int fd) +{ + struct socket_info *si = find_socket_info(fd); + struct socket_info_fd *fi; + int ret; + + if (!si) { + return libc_close(fd); + } + + for (fi = si->fds; fi; fi = fi->next) { + if (fi->fd == fd) { + SWRAP_DLIST_REMOVE(si->fds, fi); + free(fi); + break; + } + } + + if (si->fds) { + /* there are still references left */ + return libc_close(fd); + } + + SWRAP_DLIST_REMOVE(sockets, si); + + if (si->myname.sa_socklen > 0 && si->peername.sa_socklen > 0) { + swrap_pcap_dump_packet(si, NULL, SWRAP_CLOSE_SEND, NULL, 0); + } + + ret = libc_close(fd); + + if (si->myname.sa_socklen > 0 && si->peername.sa_socklen > 0) { + swrap_pcap_dump_packet(si, NULL, SWRAP_CLOSE_RECV, NULL, 0); + swrap_pcap_dump_packet(si, NULL, SWRAP_CLOSE_ACK, NULL, 0); + } + + if (si->un_addr.sun_path[0] != '\0') { + unlink(si->un_addr.sun_path); + } + free(si); + + return ret; +} + +int close(int fd) +{ + return swrap_close(fd); +} + +/**************************** + * DUP + ***************************/ + +static int swrap_dup(int fd) +{ + struct socket_info *si; + struct socket_info_fd *fi; + + si = find_socket_info(fd); + + if (!si) { + return libc_dup(fd); + } + + fi = (struct socket_info_fd *)calloc(1, sizeof(struct socket_info_fd)); + if (fi == NULL) { + errno = ENOMEM; + return -1; + } + + fi->fd = libc_dup(fd); + if (fi->fd == -1) { + int saved_errno = errno; + free(fi); + errno = saved_errno; + return -1; + } + + /* Make sure we don't have an entry for the fd */ + swrap_remove_stale(fi->fd); + + SWRAP_DLIST_ADD(si->fds, fi); + return fi->fd; +} + +int dup(int fd) +{ + return swrap_dup(fd); +} + +/**************************** + * DUP2 + ***************************/ + +static int swrap_dup2(int fd, int newfd) +{ + struct socket_info *si; + struct socket_info_fd *fi; + + si = find_socket_info(fd); + + if (!si) { + return libc_dup2(fd, newfd); + } + + if (find_socket_info(newfd)) { + /* dup2() does an implicit close of newfd, which we + * need to emulate */ + swrap_close(newfd); + } + + fi = (struct socket_info_fd *)calloc(1, sizeof(struct socket_info_fd)); + if (fi == NULL) { + errno = ENOMEM; + return -1; + } + + fi->fd = libc_dup2(fd, newfd); + if (fi->fd == -1) { + int saved_errno = errno; + free(fi); + errno = saved_errno; + return -1; + } + + /* Make sure we don't have an entry for the fd */ + swrap_remove_stale(fi->fd); + + SWRAP_DLIST_ADD(si->fds, fi); + return fi->fd; +} + +int dup2(int fd, int newfd) +{ + return swrap_dup2(fd, newfd); +} + +/**************************** + * FCNTL + ***************************/ + +static int swrap_vfcntl(int fd, int cmd, va_list va) +{ + struct socket_info_fd *fi; + struct socket_info *si; + int rc; + + si = find_socket_info(fd); + if (si == NULL) { + rc = libc_vfcntl(fd, cmd, va); + + return rc; + } + + switch (cmd) { + case F_DUPFD: + fi = (struct socket_info_fd *)calloc(1, sizeof(struct socket_info_fd)); + if (fi == NULL) { + errno = ENOMEM; + return -1; + } + + fi->fd = libc_vfcntl(fd, cmd, va); + if (fi->fd == -1) { + int saved_errno = errno; + free(fi); + errno = saved_errno; + return -1; + } + + /* Make sure we don't have an entry for the fd */ + swrap_remove_stale(fi->fd); + + SWRAP_DLIST_ADD(si->fds, fi); + + rc = fi->fd; + break; + default: + rc = libc_vfcntl(fd, cmd, va); + break; + } + + return rc; +} + +int fcntl(int fd, int cmd, ...) +{ + va_list va; + int rc; + + va_start(va, cmd); + + rc = swrap_vfcntl(fd, cmd, va); + + va_end(va); + + return rc; +} + +/**************************** + * EVENTFD + ***************************/ + +#ifdef HAVE_EVENTFD +static int swrap_eventfd(int count, int flags) +{ + int fd; + + fd = libc_eventfd(count, flags); + if (fd != -1) { + swrap_remove_stale(fd); + } + + return fd; +} + +#ifdef HAVE_EVENTFD_UNSIGNED_INT +int eventfd(unsigned int count, int flags) +#else +int eventfd(int count, int flags) +#endif +{ + return swrap_eventfd(count, flags); +} +#endif + +#ifdef HAVE_PLEDGE +int pledge(const char *promises, const char *paths[]) +{ + (void)promises; /* unused */ + (void)paths; /* unused */ + + return 0; +} +#endif /* HAVE_PLEDGE */ + +/**************************** + * DESTRUCTOR + ***************************/ + +/* + * This function is called when the library is unloaded and makes sure that + * sockets get closed and the unix file for the socket are unlinked. + */ +void swrap_destructor(void) +{ + struct socket_info *s = sockets; + + while (s != NULL) { + struct socket_info_fd *f = s->fds; + if (f != NULL) { + swrap_close(f->fd); + } + s = sockets; + } + + if (swrap.libc_handle != NULL) { + dlclose(swrap.libc_handle); + } + if (swrap.libsocket_handle) { + dlclose(swrap.libsocket_handle); + } +} diff --git a/tests/deckard/contrib/libswrap/tests/CMakeLists.txt b/tests/deckard/contrib/libswrap/tests/CMakeLists.txt new file mode 100644 index 0000000..aecf6b8 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/CMakeLists.txt @@ -0,0 +1,57 @@ +project(tests C) + +include_directories( + ${CMAKE_BINARY_DIR} + ${CMAKE_CURRENT_SOURCE_DIR} + ${CMAKE_SOURCE_DIR}/src + ${CMOCKA_INCLUDE_DIR} +) + +set(TORTURE_LIBRARY torture) + +# RFC862 echo server +add_executable(echo_srv echo_srv.c) +target_link_libraries(echo_srv ${SWRAP_REQUIRED_LIBRARIES}) + +add_library(${TORTURE_LIBRARY} STATIC torture.c) +target_link_libraries(${TORTURE_LIBRARY} + ${CMOCKA_LIBRARY} + ${SWRAP_REQUIRED_LIBRARIES}) + +set(SWRAP_TESTS + test_ioctl + test_tcp_listen + test_echo_tcp_socket + test_echo_tcp_connect + test_echo_tcp_bind + test_echo_tcp_socket_options + test_echo_tcp_sendmsg_recvmsg + test_echo_tcp_write_read + test_echo_tcp_writev_readv + test_echo_tcp_get_peer_sock_name + test_echo_udp_sendto_recvfrom + test_echo_udp_send_recv + test_echo_udp_sendmsg_recvmsg + test_swrap_unit) + +if (HAVE_STRUCT_MSGHDR_MSG_CONTROL) + set(SWRAP_TESTS ${SWRAP_TESTS} test_sendmsg_recvmsg_fd) +endif (HAVE_STRUCT_MSGHDR_MSG_CONTROL) + +foreach(_SWRAP_TEST ${SWRAP_TESTS}) + add_cmocka_test(${_SWRAP_TEST} ${_SWRAP_TEST}.c ${TORTURE_LIBRARY}) + + if (OSX) + set_property( + TEST + ${_SWRAP_TEST} + PROPERTY + ENVIRONMENT DYLD_FORCE_FLAT_NAMESPACE=1;DYLD_INSERT_LIBRARIES=${SOCKET_WRAPPER_LOCATION}) + else () + set_property( + TEST + ${_SWRAP_TEST} + PROPERTY + ENVIRONMENT LD_PRELOAD=${SOCKET_WRAPPER_LOCATION}) + endif() +endforeach() diff --git a/tests/deckard/contrib/libswrap/tests/README b/tests/deckard/contrib/libswrap/tests/README new file mode 100644 index 0000000..26bf1fb --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/README @@ -0,0 +1,9 @@ +In this directory you can find all socket_wrapper tests. All tests can also be +executed outside of the 'make test' environment and without socket_wrapper. + +This can be done with: + +TORTURE_SERVER_ADDRESS_IPV4="127.0.0.1" \ +TORTURE_SERVER_ADDRESS_IPV6="::1" \ +TORTURE_SERVER_PORT=7777 \ +./tests/test_echo_tcp_write_read diff --git a/tests/deckard/contrib/libswrap/tests/echo_srv.c b/tests/deckard/contrib/libswrap/tests/echo_srv.c new file mode 100644 index 0000000..5b784de --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/echo_srv.c @@ -0,0 +1,925 @@ +#include "config.h" + +#include <errno.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/stat.h> + +#include <arpa/inet.h> +#include <netinet/in.h> +#include <netdb.h> +#include <resolv.h> + +#include <fcntl.h> +#include <getopt.h> +#include <unistd.h> + +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> + +#ifndef PIDFILE +#define PIDFILE "echo_srv.pid" +#endif /* PIDFILE */ + +#define ECHO_SRV_IPV4 "127.0.0.10" +/* socket wrapper IPv6 prefix fd00::5357:5fxx */ +#define ECHO_SRV_IPV6 "fd00::5357:5f0a" + +#define DFL_PORT 7 +#define BACKLOG 5 + +#ifndef BUFSIZE +#define BUFSIZE 0x400000 +#endif /* BUFSIZE */ + +#ifndef discard_const +#define discard_const(ptr) ((void *)((uintptr_t)(ptr))) +#endif + +#ifndef discard_const_p +#define discard_const_p(type, ptr) ((type *)discard_const(ptr)) +#endif + +#ifndef ZERO_STRUCT +#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x)) +#endif + +struct torture_address { + socklen_t sa_socklen; + union { + struct sockaddr s; + struct sockaddr_in in; +#ifdef HAVE_IPV6 + struct sockaddr_in6 in6; +#endif + struct sockaddr_storage ss; + } sa; +}; + +struct echo_srv_opts { + int port; + int socktype; + bool daemon; + char *bind; + const char *pidfile; +}; + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + +#if defined(IP_PKTINFO) || defined(IP_RECVDSTADDR) || defined(IPV6_PKTINFO) +union pktinfo { +#ifdef HAVE_STRUCT_IN6_PKTINFO + struct in6_pktinfo pkt6; +#endif +#ifdef HAVE_STRUCT_IN_PKTINFO + struct in_pktinfo pkt4; +#elif defined(IP_RECVDSTADDR) + struct in_addr pkt4; +#endif + char c; +}; + +#define HAVE_UNION_PKTINFO 1 +#endif /* IP_PKTINFO || IP_RECVDSTADDR || IPV6_PKTINFO */ + +static const char *echo_server_address(int family) +{ + switch (family) { + case AF_INET: { + const char *ip4 = getenv("TORTURE_SERVER_ADDRESS_IPV4"); + + if (ip4 != NULL && ip4[0] != '\0') { + return ip4; + } + + return ECHO_SRV_IPV4; + } + case AF_INET6: { + const char *ip6 = getenv("TORTURE_SERVER_ADDRESS_IPV6"); + + if (ip6 != NULL && ip6[0] != '\0') { + return ip6; + } + + return ECHO_SRV_IPV6; + } + default: + return NULL; + } + + return NULL; +} +#endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL */ + +static void _assert_return_code(int rc, + int err, + const char * const file, + const int line) +{ + if (rc < 0) { + fprintf(stderr, "Fatal error: %s\n", strerror(err)); + fprintf(stderr, "%s:%d", file, line); + + abort(); + } +} +#define assert_return_code(rc, err) \ + _assert_return_code(rc, err, __FILE__, __LINE__) + + +static int pidfile(const char *path) +{ + int err; + int fd; + char pid_str[32] = { 0 }; + ssize_t nwritten; + size_t len; + + fd = open(path, O_RDONLY, 0644); + err = errno; + if (fd != -1) { + close(fd); + return EEXIST; + } else if (err != ENOENT) { + return err; + } + + fd = open(path, O_CREAT | O_WRONLY | O_EXCL, 0644); + err = errno; + if (fd == -1) { + return err; + } + + snprintf(pid_str, sizeof(pid_str) -1, "%u\n", (unsigned int) getpid()); + len = strlen(pid_str); + + nwritten = write(fd, pid_str, len); + close(fd); + if (nwritten != (ssize_t)len) { + return EIO; + } + + return 0; +} + +static int become_daemon(void) +{ + int ret; + pid_t child_pid; + int fd; + int i; + + if (getppid() == 1) { + return 0; + } + + child_pid = fork(); + if (child_pid == -1) { + ret = errno; + perror("fork"); + return ret; + } else if (child_pid > 0) { + exit(0); + } + + /* If a working directory was defined, go there */ +#ifdef WORKING_DIR + chdir(WORKING_DIR); +#endif + + ret = setsid(); + if (ret == -1) { + ret = errno; + perror("setsid"); + return ret; + } + + for (fd = getdtablesize(); fd >= 0; --fd) { + close(fd); + } + + for (i = 0; i < 3; i++) { + fd = open("/dev/null", O_RDWR, 0); + if (fd < 0) { + fd = open("/dev/null", O_WRONLY, 0); + } + if (fd < 0) { + ret = errno; + perror("Can't open /dev/null"); + return ret; + } + if (fd != i) { + perror("Didn't get correct fd"); + close(fd); + return EINVAL; + } + } + + umask(0177); + return 0; +} + +static void set_sock_pktinfo(int sock, int family) +{ + int sockopt = 1; + int option = 0; + int proto = 0; + int rc; + + switch(family) { + case AF_INET: + proto = IPPROTO_IP; +#ifdef IP_PKTINFO + option = IP_PKTINFO; +#elif IP_RECVDSTADDR + option = IP_RECVDSTADDR; +#else + return; +#endif /* IP_PKTINFO */ + break; +#ifdef HAVE_IPV6 +#ifdef IPV6_RECVPKTINFO + case AF_INET6: + proto = IPPROTO_IPV6; + option = IPV6_RECVPKTINFO; + break; +#endif /* IPV6_RECVPKTINFO */ +#endif /* HAVE_IPV6 */ + default: + return; + } + + rc = setsockopt(sock, proto, option, &sockopt, sizeof(sockopt)); + assert_return_code(rc, errno); +} + +/* Returns 0 on success, errno on failure. If successful, + * sock is a ready to use socket */ +static int setup_srv(struct echo_srv_opts *opts, int *_sock) +{ + struct addrinfo hints; + struct addrinfo *res, *ri; + char svc[6]; + int ret; + int sock; + + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = opts->socktype; + hints.ai_flags = AI_PASSIVE; + + snprintf(svc, sizeof(svc), "%d", opts->port); + + ret = getaddrinfo(opts->bind, svc, &hints, &res); + if (ret != 0) { + return errno; + } + + for (ri = res; ri != NULL; ri = ri->ai_next) { + sock = socket(ri->ai_family, ri->ai_socktype, + ri->ai_protocol); + if (sock == -1) { + ret = errno; + freeaddrinfo(res); + perror("socket"); + return ret; + } + + if (ri->ai_socktype == SOCK_DGRAM) { + set_sock_pktinfo(sock, ri->ai_family); + } + + ret = bind(sock, ri->ai_addr, ri->ai_addrlen); + if (ret == 0) { + break; + } + + close(sock); + } + freeaddrinfo(res); + + if (ri == NULL) { + fprintf(stderr, "Could not bind\n"); + return EFAULT; + } + + if (opts->socktype == SOCK_STREAM) { + ret = listen(sock, BACKLOG); + if (ret == -1) { + ret = errno; + close(sock); + perror("listen"); + return ret; + } + } + + *_sock = sock; + return 0; +} + +static int socket_dup(int s) +{ + struct torture_address cli_addr1 = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr1 = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + struct torture_address cli_addr2 = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr2 = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + struct torture_address cli_addr3 = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr3 = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + int s2; + int rc; + + rc = getsockname(s, &srv_addr1.sa.s, &srv_addr1.sa_socklen); + if (rc == -1) { + perror("getsockname"); + return -1; + } + + rc = getpeername(s, &cli_addr1.sa.s, &cli_addr1.sa_socklen); + if (rc == -1) { + perror("getpeername"); + return -1; + } + + if (cli_addr1.sa.ss.ss_family != srv_addr1.sa.ss.ss_family) { + perror("client/server family mismatch"); + return -1; + } + + /* Test dup */ + s2 = dup(s); + if (s2 == -1) { + perror("dup"); + return -1; + } + close(s); + + rc = getsockname(s2, &srv_addr2.sa.s, &srv_addr2.sa_socklen); + if (rc == -1) { + perror("getsockname"); + close(s2); + return -1; + } + + rc = getpeername(s2, &cli_addr2.sa.s, &cli_addr2.sa_socklen); + if (rc == -1) { + perror("getpeername"); + close(s2); + return -1; + } + + if (cli_addr1.sa_socklen != cli_addr2.sa_socklen || + srv_addr1.sa_socklen != srv_addr2.sa_socklen) { + perror("length mismatch"); + close(s2); + return -1; + } + + switch(cli_addr1.sa.ss.ss_family) { + case AF_INET: { + rc = memcmp(&cli_addr1.sa.in, &cli_addr2.sa.in, sizeof(struct sockaddr_in)); + if (rc != 0) { + perror("client mismatch"); + } + + rc = memcmp(&srv_addr1.sa.in, &srv_addr2.sa.in, sizeof(struct sockaddr_in)); + if (rc != 0) { + perror("server mismatch"); + } + break; + } + case AF_INET6: { + rc = memcmp(&cli_addr1.sa.in6, &cli_addr2.sa.in6, sizeof(struct sockaddr_in6)); + if (rc != 0) { + perror("client mismatch"); + } + + rc = memcmp(&srv_addr1.sa.in6, &srv_addr2.sa.in6, sizeof(struct sockaddr_in6)); + if (rc != 0) { + perror("server mismatch"); + } + break; + } + default: + perror("family mismatch"); + close(s2); + return -1; + } + + /* Test dup2 */ + s = dup2(s2, s); + close(s2); + if (s == -1) { + perror("dup"); + return -1; + } + + rc = getsockname(s, &srv_addr3.sa.s, &srv_addr3.sa_socklen); + if (rc == -1) { + perror("getsockname"); + close(s); + return -1; + } + + rc = getpeername(s, &cli_addr3.sa.s, &cli_addr3.sa_socklen); + if (rc == -1) { + perror("getpeername"); + close(s); + return -1; + } + + if (cli_addr2.sa_socklen != cli_addr3.sa_socklen || + srv_addr2.sa_socklen != srv_addr3.sa_socklen) { + perror("length mismatch"); + close(s); + return -1; + } + + switch(cli_addr2.sa.ss.ss_family) { + case AF_INET: { + rc = memcmp(&cli_addr1.sa.in, &cli_addr2.sa.in, sizeof(struct sockaddr_in)); + if (rc != 0) { + perror("client mismatch"); + } + + rc = memcmp(&srv_addr1.sa.in, &srv_addr2.sa.in, sizeof(struct sockaddr_in)); + if (rc != 0) { + perror("server mismatch"); + } + break; + } + case AF_INET6: { + rc = memcmp(&cli_addr1.sa.in6, &cli_addr2.sa.in6, sizeof(struct sockaddr_in6)); + if (rc != 0) { + perror("client mismatch"); + } + + rc = memcmp(&srv_addr1.sa.in6, &srv_addr2.sa.in6, sizeof(struct sockaddr_in6)); + if (rc != 0) { + perror("server mismatch"); + } + break; + } + default: + perror("family mismatch"); + close(s); + return -1; + } + + return s; +} + +static void echo_tcp(int sock) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + char buf[BUFSIZE]; + ssize_t bret; + + int client_sock = -1; + int s; + + s = accept(sock, &addr.sa.s, &addr.sa_socklen); + if (s == -1) { + perror("accept"); + goto done; + } + + client_sock = socket_dup(s); + if (client_sock == -1) { + perror("socket_dup"); + goto done; + } + + /* Start ping pong */ + while (1) { + bret = recv(client_sock, buf, BUFSIZE, 0); + if (bret == -1) { + perror("recv"); + goto done; + } else if (bret == 0) { + break; + } + + bret = send(client_sock, buf, bret, 0); + if (bret == -1) { + perror("send"); + goto done; + } + } + +done: + if (client_sock != -1) { + close(client_sock); + } +} + +static ssize_t echo_udp_recv_from_to(int sock, + void *buf, size_t buflen, int flags, + struct sockaddr *from, socklen_t *fromlen, + struct sockaddr *to, socklen_t *tolen) +{ + struct msghdr rmsg; + struct iovec riov; + ssize_t ret; + +#if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL) && defined(HAVE_UNION_PKTINFO) + size_t cmlen = CMSG_LEN(sizeof(union pktinfo)); + char cmsg[cmlen]; +#else + (void)to; /* unused */ + (void)tolen; /* unused */ +#endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL */ + + riov.iov_base = buf; + riov.iov_len = buflen; + + ZERO_STRUCT(rmsg); + + rmsg.msg_name = from; + rmsg.msg_namelen = *fromlen; + + rmsg.msg_iov = &riov; + rmsg.msg_iovlen = 1; + +#if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL) && defined(HAVE_UNION_PKTINFO) + memset(cmsg, 0, cmlen); + + rmsg.msg_control = cmsg; + rmsg.msg_controllen = cmlen; +#endif + + ret = recvmsg(sock, &rmsg, flags); + if (ret < 0) { + return ret; + } + *fromlen = rmsg.msg_namelen; + +#if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL) && defined(HAVE_UNION_PKTINFO) + if (rmsg.msg_controllen > 0) { + struct cmsghdr *cmsgptr; + + cmsgptr = CMSG_FIRSTHDR(&rmsg); + while (cmsgptr != NULL) { + const char *p; + +#if defined(IP_PKTINFO) && defined(HAVE_STRUCT_IN_PKTINFO) + if (cmsgptr->cmsg_level == IPPROTO_IP && + cmsgptr->cmsg_type == IP_PKTINFO) { + char ip[INET_ADDRSTRLEN] = { 0 }; + struct sockaddr_in *sinp = (struct sockaddr_in *)to; + struct in_pktinfo *pkt; + void *cmsg_cast_ptr = CMSG_DATA(cmsgptr); + + pkt = (struct in_pktinfo *)cmsg_cast_ptr; + + sinp->sin_family = AF_INET; + sinp->sin_addr = pkt->ipi_addr; + *tolen = sizeof(struct sockaddr_in); + + p = inet_ntop(AF_INET, &sinp->sin_addr, ip, sizeof(ip)); + if (p == 0) { + fprintf(stderr, "Failed to convert IP address"); + abort(); + } + + if (strcmp(ip, echo_server_address(AF_INET)) != 0) { + fprintf(stderr, "Wrong IP received"); + abort(); + } + } +#endif /* IP_PKTINFO */ +#ifdef IP_RECVDSTADDR + if (cmsgptr->cmsg_level == IPPROTO_IP && + cmsgptr->cmsg_type == IP_RECVDSTADDR) { + char ip[INET_ADDRSTRLEN] = { 0 }; + struct sockaddr_in *sinp = + (struct sockaddr_in *)(void *)to; + struct in_addr *addr; + void *cmsg_cast_ptr = CMSG_DATA(cmsgptr); + + addr = (struct in_addr *)cmsg_cast_ptr; + + sinp->sin_family = AF_INET; + sinp->sin_addr = *addr; + *tolen = sizeof(struct sockaddr_in); + + p = inet_ntop(AF_INET, &sinp->sin_addr, ip, sizeof(ip)); + if (p == 0) { + fprintf(stderr, "Failed to convert IP address"); + abort(); + } + + if (strcmp(ip, echo_server_address(AF_INET)) != 0) { + fprintf(stderr, "Wrong IP received"); + abort(); + } + } +#endif /* IP_RECVDSTADDR */ +#if defined(IPV6_PKTINFO) && defined(HAVE_STRUCT_IN6_PKTINFO) + if (cmsgptr->cmsg_level == IPPROTO_IPV6 && + cmsgptr->cmsg_type == IPV6_PKTINFO) { + char ip[INET6_ADDRSTRLEN] = { 0 }; + struct in6_pktinfo *pkt6; + struct sockaddr_in6 *sin6p = + (struct sockaddr_in6 *)(void *)to; + void *cmsg_cast_ptr = CMSG_DATA(cmsgptr); + + pkt6 = (struct in6_pktinfo *)cmsg_cast_ptr; + + sin6p->sin6_family = AF_INET6; + sin6p->sin6_addr = pkt6->ipi6_addr; + + p = inet_ntop(AF_INET6, &sin6p->sin6_addr, ip, sizeof(ip)); + if (p == 0) { + fprintf(stderr, "Failed to convert IP address"); + abort(); + } + + if (strcmp(ip, echo_server_address(AF_INET6)) != 0) { + fprintf(stderr, "Wrong IP received"); + abort(); + } + } +#endif /* IPV6_PKTINFO */ + cmsgptr = CMSG_NXTHDR(&rmsg, cmsgptr); + } + } else { + fprintf(stderr, "Failed to receive pktinfo"); + abort(); + } +#endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL && HAVE_UNION_PKTINFO */ + + return ret; +} + +static ssize_t echo_udp_send_to_from(int sock, + void *buf, size_t buflen, int flags, + struct sockaddr *to, socklen_t tolen, + struct sockaddr *from, socklen_t fromlen) +{ + struct msghdr msg; + struct iovec iov; + ssize_t ret; + +#if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL) && defined(HAVE_UNION_PKTINFO) + size_t clen = CMSG_SPACE(sizeof(union pktinfo)); + char cbuf[clen]; + struct cmsghdr *cmsgptr; +#else + (void)from; /* unused */ + (void)fromlen; /* unused */ +#endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL && HAVE_UNION_PKTINFO */ + + iov.iov_base = buf; + iov.iov_len = buflen; + + ZERO_STRUCT(msg); + + msg.msg_name = to; + msg.msg_namelen = tolen; + + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + +#if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL) && defined(HAVE_UNION_PKTINFO) + memset(cbuf, 0, clen); + + msg.msg_control = cbuf; + msg.msg_controllen = clen; + + cmsgptr = CMSG_FIRSTHDR(&msg); + msg.msg_controllen = 0; + + switch (from->sa_family) { +#if defined(IP_PKTINFO) || defined(IP_SENDSRCADDR) + case AF_INET: { + void *cmsg_cast_ptr = CMSG_DATA(cmsgptr); +#ifdef IP_PKTINFO + struct in_pktinfo *p = (struct in_pktinfo *)cmsg_cast_ptr; +#elif defined(IP_SENDSRCADDR) + struct in_addr *p = (struct in_addr *)cmsg_cast_ptr; +#endif + const struct sockaddr_in *from4 = + (const struct sockaddr_in *)(const void *)from; + + if (fromlen != sizeof(struct sockaddr_in)) { + break; + } + + cmsgptr->cmsg_level = IPPROTO_IP; +#ifdef IP_PKTINFO + cmsgptr->cmsg_type = IP_PKTINFO; + p->ipi_spec_dst = from4->sin_addr; +#elif defined(IP_SENDSRCADDR) + cmsgptr->cmsg_type = IP_SENDSRCADDR; + *p = from4->sin_addr; +#endif + cmsgptr->cmsg_len = CMSG_LEN(sizeof(*p)); + + msg.msg_controllen = CMSG_SPACE(sizeof(*p)); + + break; + } +#endif /* IP_PKTINFO || IP_SENDSRCADDR */ +#ifdef IPV6_PKTINFO + case AF_INET6: { + void *cast_ptr = CMSG_DATA(cmsgptr); + struct in6_pktinfo *p = (struct in6_pktinfo *)cast_ptr; + const struct sockaddr_in6 *from6 = + (const struct sockaddr_in6 *)(const void *)from; + + if (fromlen != sizeof(struct sockaddr_in6)) { + break; + } + + cmsgptr->cmsg_level = IPPROTO_IPV6; + cmsgptr->cmsg_type = IPV6_PKTINFO; + cmsgptr->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); + + p->ipi6_addr = from6->sin6_addr; + + msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); + + break; + } +#endif /* IPV6_PKTINFO */ + default: + break; + } +#endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL && HAVE_UNION_PKTINFO */ + + ret = sendmsg(sock, &msg, flags); + + return ret; +} + +static void echo_udp(int sock) +{ + struct torture_address saddr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address daddr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + ssize_t bret; + char buf[BUFSIZE]; + + while (1) { + bret = echo_udp_recv_from_to(sock, + buf, + BUFSIZE, + 0, + &saddr.sa.s, + &saddr.sa_socklen, + &daddr.sa.s, + &daddr.sa_socklen); + if (bret == -1) { + perror("recvfrom"); + continue; + } + + bret = echo_udp_send_to_from(sock, + buf, + bret, + 0, + &saddr.sa.s, + saddr.sa_socklen, + &daddr.sa.s, + daddr.sa_socklen); + if (bret == -1) { + perror("sendto"); + continue; + } + } +} + +static void echo(int sock, struct echo_srv_opts *opts) +{ + switch (opts->socktype) { + case SOCK_STREAM: + echo_tcp(sock); + return; + case SOCK_DGRAM: + echo_udp(sock); + return; + default: + fprintf(stderr, "Unsupported protocol\n"); + return; + } +} + +int main(int argc, char **argv) +{ + int ret; + int sock = -1; + struct echo_srv_opts opts; + int opt; + int optindex; + static struct option long_options[] = { + { discard_const_p(char, "tcp"), no_argument, 0, 't' }, + { discard_const_p(char, "udp"), no_argument, 0, 'u' }, + { discard_const_p(char, "bind-addr"), required_argument, 0, 'b' }, + { discard_const_p(char, "port"), required_argument, 0, 'p' }, + { discard_const_p(char, "daemon"), no_argument, 0, 'D' }, + { discard_const_p(char, "pid"), required_argument, 0, 0 }, + {0, 0, 0, 0 } + }; + + opts.port = DFL_PORT; + opts.socktype = SOCK_STREAM; + opts.bind = NULL; + opts.pidfile = PIDFILE; + opts.daemon = false; + + while ((opt = getopt_long(argc, argv, "Dutp:b:", + long_options, &optindex)) != -1) { + switch (opt) { + case 0: + if (optindex == 5) { + opts.pidfile = optarg; + } + break; + case 'p': + opts.port = atoi(optarg); + break; + case 'b': + opts.bind = optarg; + break; + case 'u': + opts.socktype = SOCK_DGRAM; + break; + case 't': + opts.socktype = SOCK_STREAM; + break; + case 'D': + opts.daemon = true; + break; + default: /* '?' */ + fprintf(stderr, "Usage: %s [-p port] [-u] [-t] [-b bind_addr] " \ + "[-D] [--pid pidfile]\n" + "-t makes the server listen on TCP\n" + "-u makes the server listen on UDP\n" + "-D tells the server to become a deamon and " \ + "write a PIDfile\n" + "The default port is 7, the default PIDfile is " \ + "echo_srv.pid in the current directory\n", + argv[0]); + ret = 1; + goto done; + } + } + + if (opts.daemon) { + ret = become_daemon(); + if (ret != 0) { + fprintf(stderr, "Cannot become daemon: %s\n", strerror(ret)); + goto done; + } + } + + ret = setup_srv(&opts, &sock); + if (ret != 0) { + fprintf(stderr, "Cannot setup server: %s\n", strerror(ret)); + goto done; + } + + if (opts.daemon && opts.pidfile != NULL) { + ret = pidfile(opts.pidfile); + if (ret != 0) { + fprintf(stderr, "Cannot create pidfile %s: %s\n", + opts.pidfile, strerror(ret)); + goto done; + } + } + + echo(sock, &opts); + close(sock); + + if (opts.daemon) { + unlink(opts.pidfile); + } + + ret = 0; +done: + return ret; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_bind.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_bind.c new file mode 100644 index 0000000..cde7e3f --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_bind.c @@ -0,0 +1,536 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#ifdef HAVE_RPC_RPC_H +#include <rpc/rpc.h> +#endif + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + + return 0; +} + +static int setup_echo_srv_tcp_ipv6(void **state) +{ + torture_setup_echo_srv_tcp_ipv6(state); + + return 0; +} + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_bind_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address addr_in = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address addr_un = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* + * Test various cases with family AF_UNSPEC + */ + + /* UNSPEC, len == 1: EINVAL */ + + addr_in.sa.in = (struct sockaddr_in) { + .sin_family = AF_UNSPEC, + }; + rc = bind(s, &addr.sa.s, 1); + assert_int_equal(rc, -1); + assert_int_equal(errno, EINVAL); + + /* UNSPEC: EAFNOSUPPORT */ + + addr_in.sa.in = (struct sockaddr_in) { + .sin_family = AF_UNSPEC, + }; + rc = inet_pton(AF_INET, "127.0.0.20", &addr_in.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_int_equal(rc, -1); + /* FreeBSD uses EADDRNOTAVAIL here ... */ + assert_true(errno == EAFNOSUPPORT || errno == EADDRNOTAVAIL); + + /* special case: AF_UNSPEC with INADDR_ANY: success mapped to AF_INET */ + + addr_in.sa.in = (struct sockaddr_in) { + .sin_family = AF_UNSPEC, + }; + assert_int_equal(addr_in.sa.in.sin_addr.s_addr, htonl(INADDR_ANY)); + + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_return_code(rc, errno); + + close(s); + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* + * Test various cases with family AF_UNIX + * all fail with EAFNOSUPPORT + */ + + addr.sa.ss = (struct sockaddr_storage) { + .ss_family = AF_UNIX, + }; + rc = bind(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EAFNOSUPPORT); + + addr_in.sa.in = (struct sockaddr_in) { + .sin_family = AF_UNIX, + }; + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EAFNOSUPPORT); + + addr_un.sa.un = (struct sockaddr_un) { + .sun_family = AF_UNIX, + }; + rc = bind(s, &addr_un.sa.s, addr_un.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EAFNOSUPPORT); + +#ifdef HAVE_IPV6 + /* + * Test with family AF_INET6 - fail + */ + + addr_in.sa.in = (struct sockaddr_in) { + .sin_family = AF_INET6, + }; + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EAFNOSUPPORT); +#endif + + /* + * Finally, success binding a new IPv4 address. + */ + addr_in = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_un), + .sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + }, + }; + + rc = inet_pton(AF_INET, "127.0.0.20", &addr_in.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_return_code(rc, errno); + + addr_in = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_un), + .sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + .sin_port = htons(torture_server_port()), + }, + }; + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr_in.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_return_code(rc, errno); + + close(s); +} + +#if 0 /* TODO */ +static void test_bind_ipv4_addr_in_use(void **state) +{ + struct sockaddr_in sin, sin2; + socklen_t slen = sizeof(struct sockaddr_in); + int rc; + int s, s2; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* + * Try to bind to the same address as already bound by a + * different process. + */ + + /* Without specifying the port - success */ + + ZERO_STRUCT(sin); + sin.sin_family = AF_INET; + rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr); + assert_int_equal(rc, 1); + rc = bind(s, (struct sockaddr *)&sin, slen); + assert_return_code(rc, errno); + + close(s); + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + +#if 0 + /* specify the same port - fail with EADDRINUSE. */ + + /* Not supported by socket_wrapper yet. ==> TODO! */ + + ZERO_STRUCT(sin); + sin.sin_family = AF_INET, + sin.sin_port = htons(torture_server_port()); + rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, (struct sockaddr *)&sin, slen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EADDRINUSE); +#endif + + /* + * Try double binding when the firs bind is with port == 0 + */ + + ZERO_STRUCT(sin); + sin.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, (struct sockaddr *)&sin, slen); + assert_return_code(rc, errno); + + /* + * Open a second socket locally and try to bind to the same address. + */ + + /* Succeeds with port == 0 */ + + s2 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + ZERO_STRUCT(sin2); + sin2.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &sin2.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s2, (struct sockaddr *)&sin2, slen); + assert_return_code(rc, errno); + + close(s2); + + /* second bind with port != 0 - succeeds */ + + s2 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + ZERO_STRUCT(sin2); + sin2.sin_family = AF_INET; + sin2.sin_port = htons(12345); + + rc = inet_pton(AF_INET, "127.0.0.20", &sin2.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s2, (struct sockaddr *)&sin2, slen); + assert_return_code(rc, errno); + + close(s2); + close(s); + + /* + * Try double binding when the first bind is with port != 0 + */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + ZERO_STRUCT(sin); + sin.sin_family = AF_INET; + sin.sin_port = htons(12345); + + rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, (struct sockaddr *)&sin, slen); + assert_return_code(rc, errno); + + /* + * Open a second socket locally and try to bind to the same address. + */ + + /* Succeeds with port == 0 */ + + s2 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + ZERO_STRUCT(sin2); + sin2.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &sin2.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s2, (struct sockaddr *)&sin2, slen); + assert_return_code(rc, errno); + + close(s2); + + /* with same port as above - fail with EADDRINUSE */ + + s2 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + ZERO_STRUCT(sin2); + sin2.sin_family = AF_INET; + sin2.sin_port = htons(12345); + + rc = inet_pton(AF_INET, "127.0.0.20", &sin2.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s2, (struct sockaddr *)&sin2, slen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EADDRINUSE); + + close(s); +} +#endif + +#ifdef HAVE_BINDRESVPORT +static void test_bindresvport_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + addr.sa.in.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = bindresvport(s, &addr.sa.in); + assert_return_code(rc, errno); + + addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + .sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + .sin_port = htons(torture_server_port()), + }, + }; + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + close(s); +} + +static void test_bindresvport_ipv4_null(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + rc = bindresvport(s, NULL); + assert_return_code(rc, errno); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + rc = inet_pton(AF_INET, torture_server_address(AF_INET), &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + close(s); +} +#endif /* HAVE_BINDRESVPORT */ + +#ifdef HAVE_IPV6 +static void test_bind_on_ipv6_sock(void **state) +{ + struct torture_address addr_in = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address addr_un = { + .sa_socklen = sizeof(struct sockaddr_un), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + addr_un.sa.un.sun_family = AF_UNIX; + rc = bind(s, &addr_un.sa.s, addr_un.sa_socklen); + assert_int_equal(rc, -1); + /* FreeBSD uses EINVAL here... */ + assert_true(errno == EAFNOSUPPORT || errno == EINVAL); + + addr_in.sa.in.sin_family = AF_INET; + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EINVAL); + + addr_in.sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + }; + + rc = inet_pton(AF_INET, "127.0.0.20", &addr_in.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EINVAL); + + addr_in = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_in6), + .sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + }, + }; + + rc = bind(s, &addr_in.sa.s, addr_in.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, EAFNOSUPPORT); + + close(s); +} + +#ifdef HAVE_BINDRESVPORT +static void test_bindresvport_on_ipv6_sock(void **state) +{ + struct sockaddr_in sin; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + ZERO_STRUCT(sin); + sin.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr); + assert_int_equal(rc, 1); + + rc = bindresvport(s, &sin); + assert_int_equal(rc, -1); + assert_int_equal(errno, EINVAL); + + close(s); +} + +static void test_bindresvport_on_ipv6_sock_null(void **state) +{ + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + rc = bindresvport(s, NULL); + assert_return_code(rc, errno); + + close(s); +} +#endif /* HAVE_BINDRESVPORT */ +#endif /* HAVE_IPV6 */ + +int main(void) { + int rc; + + const struct CMUnitTest tcp_bind_tests[] = { + cmocka_unit_test_setup_teardown(test_bind_ipv4, + setup_echo_srv_tcp_ipv4, + teardown), +#if 0 /* TODO */ + cmocka_unit_test_setup_teardown(test_bind_ipv4_addr_in_use, + setup_echo_srv_tcp_ipv4, + teardown), +#endif +#ifdef HAVE_BINDRESVPORT + cmocka_unit_test_setup_teardown(test_bindresvport_ipv4, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_bindresvport_ipv4_null, + setup_echo_srv_tcp_ipv4, + teardown), +#endif /* HAVE_BINDRESVPORT */ +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_bind_on_ipv6_sock, + setup_echo_srv_tcp_ipv6, + teardown), +#ifdef HAVE_BINDRESVPORT + cmocka_unit_test_setup_teardown(test_bindresvport_on_ipv6_sock, + setup_echo_srv_tcp_ipv6, + teardown), + cmocka_unit_test_setup_teardown(test_bindresvport_on_ipv6_sock_null, + setup_echo_srv_tcp_ipv6, + teardown), +#endif /* HAVE_BINDRESVPORT */ +#endif /* HAVE_IPV6 */ + }; + + rc = cmocka_run_group_tests(tcp_bind_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_connect.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_connect.c new file mode 100644 index 0000000..d2020c8 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_connect.c @@ -0,0 +1,101 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + + return 0; +} + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_connect_broadcast_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + addr.sa.in.sin_addr.s_addr = INADDR_BROADCAST; + + /* We don't allow connect to broadcast addresses */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, -1); + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_connect_downgrade_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in.sin_family, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + /* Connect should downgrade to IPv4 and allow the connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + close(s); +} +#endif + +int main(void) { + int rc; + + const struct CMUnitTest tcp_connect_tests[] = { + cmocka_unit_test(test_connect_broadcast_ipv4), +#ifdef HAVE_IPV6 + cmocka_unit_test(test_connect_downgrade_ipv6), +#endif + }; + + rc = cmocka_run_group_tests(tcp_connect_tests, + setup_echo_srv_tcp_ipv4, + teardown); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_get_peer_sock_name.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_get_peer_sock_name.c new file mode 100644 index 0000000..ac369dd --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_get_peer_sock_name.c @@ -0,0 +1,476 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + setenv("SOCKET_WRAPPER_DEFAULT_IFACE", "20", 1); + + return 0; +} + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void _assert_sockaddr_equal(struct torture_address *addr, const char *a, + const char * const file, const int line) +{ + char ip[INET6_ADDRSTRLEN] = { 0 }; + const char *p; + + p = inet_ntop(addr->sa.ss.ss_family, + addr->sa.ss.ss_family == AF_INET6 ? + (void *)&addr->sa.in6.sin6_addr : + (void *)&addr->sa.in.sin_addr, + ip, + sizeof(ip)); + _assert_true(cast_ptr_to_largest_integral_type(p), + "inet_ntop: Failed to convert IP address", file, line); + + _assert_string_equal(ip, a, file, line); +} + +#define assert_sockaddr_equal(ss, a) \ + _assert_sockaddr_equal(ss, a, __FILE__, __LINE__) + +static void _assert_sockaddr_port_equal(struct torture_address *addr, + const char *a, + uint16_t port, + const char * const file, const int line) +{ + uint16_t n_port; + + _assert_sockaddr_equal(addr, a, file, line); + + switch(addr->sa.ss.ss_family) { + case AF_INET: + n_port = addr->sa.in.sin_port; + break; + case AF_INET6: + n_port = addr->sa.in6.sin6_port; + break; + default: + return; + } + + _assert_int_equal(ntohs(n_port), port, file, line); +} + +#define assert_sockaddr_port_equal(ss, a, prt) \ + _assert_sockaddr_port_equal(ss, a, prt, __FILE__, __LINE__) + +static void _assert_sockaddr_port_range_equal(struct torture_address *addr, + const char *a, + uint16_t min_port, uint16_t max_port, + const char * const file, const int line) +{ + uint16_t n_port; + + _assert_sockaddr_equal(addr, a, file, line); + + switch(addr->sa.ss.ss_family) { + case AF_INET: + n_port = addr->sa.in.sin_port; + break; + case AF_INET6: + n_port = addr->sa.in6.sin6_port; + break; + default: + return; + } + + _assert_in_range(ntohs(n_port), + min_port, + max_port, + file, + line); +} + +#define assert_sockaddr_port_range_equal(ss, a, min_prt, max_prt) \ + _assert_sockaddr_port_range_equal(ss, a, min_prt, max_prt, __FILE__, __LINE__) + +static void test_connect_getsockname_getpeername(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address cli_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* Bind client address to wildcard address */ + addr.sa.in.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = bind(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_range_equal(&cli_addr, "127.0.0.20", 1024, 65535); + + rc = getpeername(s, &addr.sa.s, &addr.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, ENOTCONN); + + /* connect */ + addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_in), + .sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + .sin_port = htons(torture_server_port()), + }, + }; + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + /* Connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + cli_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_range_equal(&cli_addr, "127.0.0.20", 1024, 65535); + + srv_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&srv_addr, "127.0.0.10", 7); + + close(s); +} + +static void test_connect_getsockname_getpeername_port(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address cli_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* Bind client address to wildcard address */ + addr.sa.in.sin_family = AF_INET; + + rc = inet_pton(AF_INET, "127.0.0.20", &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + addr.sa.in.sin_port = htons(12345); + + rc = bind(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&cli_addr, "127.0.0.20", 12345); + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, ENOTCONN); + + /* connect */ + addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_in), + .sa.in = (struct sockaddr_in) { + .sin_family = AF_INET, + .sin_port = htons(torture_server_port()), + }, + }; + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + /* Connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + cli_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&cli_addr, "127.0.0.20", 12345); + + srv_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&srv_addr, "127.0.0.10", 7); + + close(s); +} + +static void test_connect_getsockname_getpeername_any(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address cli_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* Bind client address to wildcard address */ + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_addr.s_addr = htonl(INADDR_ANY); + + rc = bind(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_range_equal(&cli_addr, "0.0.0.0", 1024, 65535); + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, ENOTCONN); + + /* connect */ + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + /* Connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + cli_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_range_equal(&cli_addr, "127.0.0.20", 1024, 65535); + + srv_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&srv_addr, "127.0.0.10", 7); + + close(s); +} + +static void test_connect_getsockname_getpeername_any_port(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address cli_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* Bind client address to wildcard address */ + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_addr.s_addr = htonl(INADDR_ANY); + addr.sa.in.sin_port = htons(12345); + + rc = bind(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&cli_addr, "0.0.0.0", 12345); + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_int_equal(rc, -1); + assert_int_equal(errno, ENOTCONN); + + /* connect */ + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + /* Connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + cli_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&cli_addr, "127.0.0.20", 12345); + + srv_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_return_code(rc, errno); + assert_sockaddr_port_equal(&srv_addr, "127.0.0.10", 7); + + close(s); +} + +static void test_connect_getsockname_getpeername_len(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct torture_address cli_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address srv_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + socklen_t tmp_len; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s, errno); + + /* connect */ + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + /* Connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + /* Check with len=0 */ + cli_addr.sa_socklen = 0; + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + + srv_addr.sa_socklen = 0; + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_return_code(rc, errno); + + /* Check with len=too small */ + cli_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_in) - 2, + }; + + tmp_len = cli_addr.sa_socklen; + rc = getsockname(s, &cli_addr.sa.s, &cli_addr.sa_socklen); + assert_return_code(rc, errno); + assert_int_equal(tmp_len + 2, cli_addr.sa_socklen); + + srv_addr = (struct torture_address) { + .sa_socklen = sizeof(struct sockaddr_in) - 2, + }; + + tmp_len = srv_addr.sa_socklen; + rc = getpeername(s, &srv_addr.sa.s, &srv_addr.sa_socklen); + assert_return_code(rc, errno); + assert_int_equal(tmp_len + 2, srv_addr.sa_socklen); + + close(s); +} + +int main(void) { + int rc; + + const struct CMUnitTest sock_name_tests[] = { + cmocka_unit_test_setup_teardown(test_connect_getsockname_getpeername, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_connect_getsockname_getpeername_port, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_connect_getsockname_getpeername_any, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_connect_getsockname_getpeername_any_port, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_connect_getsockname_getpeername_len, + setup_echo_srv_tcp_ipv4, + teardown), + }; + + rc = cmocka_run_group_tests(sock_name_tests, + NULL, + NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_sendmsg_recvmsg.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_sendmsg_recvmsg.c new file mode 100644 index 0000000..4f7629e --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_sendmsg_recvmsg.c @@ -0,0 +1,273 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_tcp_ipv6(void **state) +{ + torture_setup_echo_srv_tcp_ipv6(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_sendmsg_recvmsg_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + + for (i = 0; i < 10; i++) { + struct torture_address reply_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct msghdr s_msg = { + .msg_namelen = 0, + }; + struct msghdr r_msg = { + .msg_namelen = 0, + }; + struct iovec s_iov; + struct iovec r_iov; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + /* This should be ignored */ + rc = inet_pton(AF_INET, + "127.0.0.1", + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + s_msg.msg_name = &addr.sa.s; + s_msg.msg_namelen = addr.sa_socklen; + + s_iov.iov_base = send_buf; + s_iov.iov_len = sizeof(send_buf); + + s_msg.msg_iov = &s_iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + r_msg.msg_name = &reply_addr.sa.s; + r_msg.msg_namelen = reply_addr.sa_socklen; + + r_iov.iov_base = recv_buf; + r_iov.iov_len = sizeof(recv_buf); + + r_msg.msg_iov = &r_iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, 0); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_sendmsg_recvmsg_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET6; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET6, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + + for (i = 0; i < 10; i++) { + struct torture_address reply_addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct msghdr s_msg = { + .msg_namelen = 0, + }; + struct msghdr r_msg = { + .msg_namelen = 0, + }; + struct iovec s_iov; + struct iovec r_iov; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + s_iov.iov_base = send_buf; + s_iov.iov_len = sizeof(send_buf); + + s_msg.msg_iov = &s_iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + r_msg.msg_name = &reply_addr.sa.s; + r_msg.msg_namelen = reply_addr.sa_socklen; + + r_iov.iov_base = recv_buf; + r_iov.iov_len = sizeof(recv_buf); + + r_msg.msg_iov = &r_iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, 0); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} +#endif + +static void test_sendmsg_recvmsg_ipv4_null(void **state) +{ + struct torture_address send_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct msghdr s_msg = { + .msg_namelen = 0, + }; + struct msghdr r_msg = { + .msg_namelen = 0, + }; + struct iovec iov; + char payload[] = "PACKET"; + ssize_t ret; + int rc; + int s; + + (void)state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + send_addr.sa.in.sin_family = AF_INET; + send_addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &send_addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &send_addr.sa.s, send_addr.sa_socklen); + + /* msg_name = NULL */ + + iov.iov_base = (void *)payload; + iov.iov_len = sizeof(payload); + + s_msg.msg_iov = &iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + /* msg_name = NULL */ + + memset(payload, 0, sizeof(payload)); + + r_msg.msg_iov = &iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, 0); + assert_null(r_msg.msg_name); + + close(s); +} + +int main(void) { + int rc; + + const struct CMUnitTest sendmsg_tests[] = { + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4_null, + setup_echo_srv_tcp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv6, + setup_echo_srv_tcp_ipv6, + teardown), +#endif + }; + + rc = cmocka_run_group_tests(sendmsg_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_socket.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_socket.c new file mode 100644 index 0000000..57b92de --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_socket.c @@ -0,0 +1,69 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static void test_socket_getsockname(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + rc = getsockname(s, &addr.sa.s, &addr.sa_socklen); + assert_return_code(rc, errno); + assert_int_equal(addr.sa.in.sin_family, AF_INET); +} + +#ifdef HAVE_IPV6 +static void test_socket_getsockname6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + rc = getsockname(s, &addr.sa.s, &addr.sa_socklen); + assert_return_code(rc, errno); + assert_int_equal(addr.sa.in6.sin6_family, AF_INET6); +} +#endif + +int main(void) { + int rc; + + const struct CMUnitTest getsockname_tests[] = { + cmocka_unit_test(test_socket_getsockname), +#ifdef HAVE_IPV6 + cmocka_unit_test(test_socket_getsockname6), +#endif + }; + + rc = cmocka_run_group_tests(getsockname_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_socket_options.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_socket_options.c new file mode 100644 index 0000000..dfa46fe --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_socket_options.c @@ -0,0 +1,368 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netinet/tcp.h> +#include <arpa/inet.h> +#include <netdb.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +#ifndef ZERO_STRUCT +#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x)) +#endif + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_tcp_ipv6(void **state) +{ + torture_setup_echo_srv_tcp_ipv6(state); + + return 0; +} + +static int setup_ipv6(void **state) +{ + torture_setup_socket_dir(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_sockopt_sndbuf(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int obufsize = 0; + socklen_t olen = sizeof(obufsize); + int gbufsize = 0; + socklen_t glen = sizeof(gbufsize); + int sbufsize = 0; + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in.sin_family, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + rc = getsockopt(s, SOL_SOCKET, SO_SNDBUF, &obufsize, &olen); + assert_int_equal(rc, 0); + + /* request 4k, on Linux the kernel doubles the value */ + sbufsize = 4096; + rc = setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sbufsize, sizeof(sbufsize)); + assert_int_equal(rc, 0); + + rc = getsockopt(s, SOL_SOCKET, SO_SNDBUF, &gbufsize, &glen); + assert_int_equal(rc, 0); + + assert_true(sbufsize == gbufsize || sbufsize == gbufsize/2); + + close(s); +} + +#ifndef SO_PROTOCOL +# ifdef SO_PROTOTYPE /* The Solaris name */ +# define SO_PROTOCOL SO_PROTOTYPE +# endif /* SO_PROTOTYPE */ +#endif /* SO_PROTOCOL */ + +static void test_sockopt_so(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + socklen_t so_len; +#ifdef SO_DOMAIN + int so_domain = -1; +#endif /* SO_DOMAIN */ +#ifdef SO_PROTOCOL + int so_protocol = -1; + int so_type = -1; +#endif /* SO_PROTOCOL */ + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in.sin_family, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + +#ifdef SO_DOMAIN + so_len = sizeof(so_domain); + rc = getsockopt(s, + SOL_SOCKET, + SO_DOMAIN, + &so_domain, + &so_len); + assert_return_code(rc, errno); + assert_int_equal(so_domain, AF_INET); + assert_int_equal(so_len, sizeof(int)); +#endif /* SO_DOMAIN */ + +#ifdef SO_PROTOCOL + so_len = sizeof(so_protocol); + rc = getsockopt(s, + SOL_SOCKET, + SO_PROTOCOL, + &so_protocol, + &so_len); + assert_return_code(rc, errno); + assert_int_equal(so_protocol, IPPROTO_TCP); + assert_int_equal(so_len, sizeof(int)); + + so_len = sizeof(so_type); + rc = getsockopt(s, + SOL_SOCKET, + SO_TYPE, + &so_type, + &so_len); + assert_return_code(rc, errno); + assert_int_equal(so_type, SOCK_STREAM); + assert_int_equal(so_len, sizeof(int)); +#endif /* SO_PROTOCOL */ + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_sockopt_so6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; +#ifdef SO_DOMAIN + int so_domain = -1; +#endif /* SO_DOMAIN */ +#ifdef SO_PROTOCOL + socklen_t so_len; + int so_protocol = -1; + int so_type = -1; +#endif /* SO_PROTOCOL */ + int rc; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in6.sin6_family = AF_INET6; + addr.sa.in6.sin6_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in6.sin6_family, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + +#ifdef SO_DOMAIN + so_len = sizeof(so_domain); + rc = getsockopt(s, + SOL_SOCKET, + SO_DOMAIN, + &so_domain, + &so_len); + assert_return_code(rc, errno); + assert_int_equal(so_domain, AF_INET6); + assert_int_equal(so_len, sizeof(int)); +#endif /* SO_DOMAIN */ + +#ifdef SO_PROTOCOL + so_len = sizeof(so_protocol); + rc = getsockopt(s, + SOL_SOCKET, + SO_PROTOCOL, + &so_protocol, + &so_len); + assert_return_code(rc, errno); + assert_int_equal(so_protocol, IPPROTO_TCP); + assert_int_equal(so_len, sizeof(int)); + + so_len = sizeof(so_type); + rc = getsockopt(s, + SOL_SOCKET, + SO_TYPE, + &so_type, + &so_len); + assert_return_code(rc, errno); + assert_int_equal(so_type, SOCK_STREAM); + assert_int_equal(so_len, sizeof(int)); +#endif /* SO_PROTOCOL */ + + close(s); +} + +static void test_bind_ipv6_only(void **state) +{ + struct addrinfo hints; + struct addrinfo *res, *ri; + char svc[] = "7777"; + int rc; + int s; + + (void) state; /* unused */ + + ZERO_STRUCT(hints); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_flags = AI_PASSIVE; + + rc = getaddrinfo(torture_server_address(AF_INET6), svc, &hints, &res); + assert_int_equal(rc, 0); + + for (ri = res; ri != NULL; ri = ri->ai_next) { + int one = 1; + + s = socket(ri->ai_family, + ri->ai_socktype, + ri->ai_protocol); + assert_int_not_equal(rc, -1); + + rc = setsockopt(s, + IPPROTO_IPV6, + IPV6_V6ONLY, + (const void *)&one, + sizeof(one)); + switch(ri->ai_family) { + case AF_INET: + assert_int_equal(rc, -1); + + break; + case AF_INET6: + assert_int_equal(rc, 0); + + rc = bind(s, ri->ai_addr, ri->ai_addrlen); + assert_int_equal(rc, 0); + + break; + default: + break; + } + + close(s); + } + freeaddrinfo(res); +} +#endif + +static void test_sockopt_tcp(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + int opt = -1; + socklen_t optlen = sizeof(int); + int rc; + + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in.sin_family, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + rc = getsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, &optlen); + assert_return_code(rc, errno); + assert_int_equal(opt, 0); + + opt = 1; /* Turn on TCP_NODELAY */ + optlen = sizeof(int); + rc = setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, optlen); + assert_return_code(rc, errno); + + opt = -1; + optlen = sizeof(int); + rc = getsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, &optlen); + assert_return_code(rc, errno); + assert_int_equal(opt, 1); + + close(s); +} + +int main(void) { + int rc; + + const struct CMUnitTest sockopt_tests[] = { + cmocka_unit_test_setup_teardown(test_sockopt_sndbuf, + setup_echo_srv_tcp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_sockopt_so, + setup_echo_srv_tcp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_sockopt_so6, + setup_echo_srv_tcp_ipv6, + teardown), + cmocka_unit_test_setup_teardown(test_bind_ipv6_only, + setup_ipv6, + teardown), +#endif + cmocka_unit_test_setup_teardown(test_sockopt_tcp, + setup_echo_srv_tcp_ipv4, + teardown), + }; + + rc = cmocka_run_group_tests(sockopt_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_write_read.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_write_read.c new file mode 100644 index 0000000..9129022 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_write_read.c @@ -0,0 +1,156 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_tcp_ipv6(void **state) +{ + torture_setup_echo_srv_tcp_ipv6(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_write_read_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in.sin_family, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + for (i = 0; i < 10; i++) { + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ret = write(s, + send_buf, + sizeof(send_buf)); + assert_int_not_equal(ret, -1); + + ret = read(s, + recv_buf, + sizeof(recv_buf)); + assert_int_not_equal(ret, -1); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_write_read_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in6.sin6_family = AF_INET6; + addr.sa.in6.sin6_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET6, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + for (i = 0; i < 10; i++) { + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ret = write(s, + send_buf, + sizeof(send_buf)); + assert_int_not_equal(ret, -1); + + ret = read(s, + recv_buf, + sizeof(recv_buf)); + assert_int_not_equal(ret, -1); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} +#endif + +int main(void) { + int rc; + + const struct CMUnitTest tcp_write_tests[] = { + cmocka_unit_test_setup_teardown(test_write_read_ipv4, + setup_echo_srv_tcp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_write_read_ipv6, + setup_echo_srv_tcp_ipv6, + teardown), +#endif + }; + + rc = cmocka_run_group_tests(tcp_write_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_tcp_writev_readv.c b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_writev_readv.c new file mode 100644 index 0000000..e011236 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_tcp_writev_readv.c @@ -0,0 +1,189 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/uio.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_tcp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_tcp_ipv6(void **state) +{ + torture_setup_echo_srv_tcp_ipv6(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_writev_readv_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(addr.sa.in.sin_family, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + for (i = 1; i < 10; i++) { + char send_buf[10][64]; + char recv_buf[10][64]; + struct iovec iov_send[10]; + struct iovec iov_recv[10]; + int j; + + for (j = 0; j < i; j++) { + memset(send_buf[j], 0, 64); + snprintf(send_buf[j], sizeof(send_buf[j]), + "packet.%d", j); + + iov_send[j].iov_base = send_buf[j]; + iov_send[j].iov_len = strlen(send_buf[j]); + + iov_recv[j].iov_base = recv_buf[j]; + iov_recv[j].iov_len = strlen(send_buf[j]); + } + + ret = writev(s, iov_send, j); + assert_int_not_equal(ret, -1); + + ret = readv(s, iov_recv, j); + assert_int_not_equal(ret, -1); + + for (j = 0; j < i; j++) { + assert_int_equal(iov_send[j].iov_len, + iov_recv[j].iov_len); + + assert_memory_equal(iov_send[j].iov_base, + iov_recv[j].iov_base, + iov_send[j].iov_len); + } + } + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_writev_readv_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_int_not_equal(s, -1); + + addr.sa.in6.sin6_family = AF_INET6; + addr.sa.in6.sin6_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET6, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + for (i = 1; i < 10; i++) { + char send_buf[10][64]; + char recv_buf[10][64]; + struct iovec iov_send[10]; + struct iovec iov_recv[10]; + int j; + + for (j = 0; j < i; j++) { + memset(send_buf[j], 0, 64); + snprintf(send_buf[j], sizeof(send_buf[j]), + "packet.%d", j); + + iov_send[j].iov_base = send_buf[j]; + iov_send[j].iov_len = strlen(send_buf[j]); + + iov_recv[j].iov_base = recv_buf[j]; + iov_recv[j].iov_len = strlen(send_buf[j]); + } + + ret = writev(s, iov_send, j); + assert_int_not_equal(ret, -1); + + ret = readv(s, iov_recv, j); + assert_int_not_equal(ret, -1); + + for (j = 0; j < i; j++) { + assert_int_equal(iov_send[j].iov_len, + iov_recv[j].iov_len); + + assert_memory_equal(iov_send[j].iov_base, + iov_recv[j].iov_base, + iov_send[j].iov_len); + } + } + + close(s); +} +#endif + +int main(void) { + int rc; + + const struct CMUnitTest tcp_writev_tests[] = { + cmocka_unit_test_setup_teardown(test_writev_readv_ipv4, + setup_echo_srv_tcp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_writev_readv_ipv6, + setup_echo_srv_tcp_ipv6, + teardown), +#endif + }; + + rc = cmocka_run_group_tests(tcp_writev_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_udp_send_recv.c b/tests/deckard/contrib/libswrap/tests/test_echo_udp_send_recv.c new file mode 100644 index 0000000..cf4e848 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_udp_send_recv.c @@ -0,0 +1,160 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_udp_ipv4(void **state) +{ + torture_setup_echo_srv_udp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_udp_ipv6(void **state) +{ + torture_setup_echo_srv_udp_ipv6(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_send_recv_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + for (i = 0; i < 10; i++) { + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ret = send(s, + send_buf, + sizeof(send_buf), + 0); + assert_int_not_equal(ret, -1); + + ret = recv(s, + recv_buf, + sizeof(recv_buf), + 0); + assert_int_not_equal(ret, -1); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_send_recv_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + addr.sa.in6.sin6_family = AF_INET6; + addr.sa.in6.sin6_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET6, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_int_equal(rc, 0); + + for (i = 0; i < 10; i++) { + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ret = send(s, + send_buf, + sizeof(send_buf), + 0); + assert_int_not_equal(ret, -1); + + ret = recv(s, + recv_buf, + sizeof(recv_buf), + 0); + assert_int_not_equal(ret, -1); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} +#endif + +int main(void) { + int rc; + + const struct CMUnitTest send_tests[] = { + cmocka_unit_test_setup_teardown(test_send_recv_ipv4, + setup_echo_srv_udp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_send_recv_ipv6, + setup_echo_srv_udp_ipv6, + teardown), +#endif + }; + + rc = cmocka_run_group_tests(send_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_udp_sendmsg_recvmsg.c b/tests/deckard/contrib/libswrap/tests/test_echo_udp_sendmsg_recvmsg.c new file mode 100644 index 0000000..93450b7 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_udp_sendmsg_recvmsg.c @@ -0,0 +1,407 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_udp_ipv4(void **state) +{ + torture_setup_echo_srv_udp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_udp_ipv6(void **state) +{ + torture_setup_echo_srv_udp_ipv6(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_sendmsg_recvmsg_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + for (i = 0; i < 10; i++) { + char ip[INET_ADDRSTRLEN] = {0}; + const char *a; + struct torture_address srv_in = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + struct msghdr s_msg; + struct msghdr r_msg; + struct iovec s_iov; + struct iovec r_iov; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ZERO_STRUCT(s_msg); + + s_msg.msg_name = &addr.sa.s; + s_msg.msg_namelen = addr.sa_socklen; + + s_iov.iov_base = send_buf; + s_iov.iov_len = sizeof(send_buf); + + s_msg.msg_iov = &s_iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + ZERO_STRUCT(r_msg); + + r_msg.msg_name = &srv_in.sa.s; + r_msg.msg_namelen = srv_in.sa_socklen; + + r_iov.iov_base = recv_buf; + r_iov.iov_len = sizeof(recv_buf); + + r_msg.msg_iov = &r_iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, sizeof(struct sockaddr_in)); + + a = inet_ntop(AF_INET, &srv_in.sa.in.sin_addr, ip, sizeof(ip)); + assert_non_null(a); + assert_string_equal(a, torture_server_address(AF_INET)); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_sendmsg_recvmsg_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + addr.sa.in6.sin6_family = AF_INET6; + addr.sa.in6.sin6_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET6, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + for (i = 0; i < 10; i++) { + char ip[INET6_ADDRSTRLEN] = {0}; + const char *a; + struct torture_address srv_in6 = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + struct msghdr s_msg; + struct msghdr r_msg; + struct iovec s_iov; + struct iovec r_iov; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ZERO_STRUCT(s_msg); + + s_msg.msg_name = &addr.sa.s; + s_msg.msg_namelen = addr.sa_socklen; + + s_iov.iov_base = send_buf; + s_iov.iov_len = sizeof(send_buf); + + s_msg.msg_iov = &s_iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + ZERO_STRUCT(r_msg); + r_msg.msg_name = &srv_in6.sa.s; + r_msg.msg_namelen = srv_in6.sa_socklen; + + r_iov.iov_base = recv_buf; + r_iov.iov_len = sizeof(recv_buf); + + r_msg.msg_iov = &r_iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, sizeof(struct sockaddr_in6)); + + a = inet_ntop(AF_INET6, &srv_in6.sa.in6.sin6_addr, ip, sizeof(ip)); + assert_non_null(a); + assert_string_equal(a, torture_server_address(AF_INET6)); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + close(s); +} +#endif + +static void test_sendmsg_recvmsg_ipv4_connected(void **state) +{ + struct torture_address send_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct torture_address r_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct msghdr s_msg = { + .msg_namelen = 0, + }; + struct msghdr r_msg = { + .msg_namelen = 0, + }; + struct iovec iov; + char ip[INET_ADDRSTRLEN] = {0}; + char payload[] = "PACKET"; + const char *a; + ssize_t ret; + int rc; + int s; + + (void)state; /* unused */ + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + send_addr.sa.in.sin_family = AF_INET; + send_addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &send_addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &send_addr.sa.s, send_addr.sa_socklen); + + iov.iov_base = (void *)payload; + iov.iov_len = sizeof(payload); + + /* msg_name is NULL */ + + s_msg.msg_iov = &iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + r_msg.msg_name = &r_addr.sa.ss; + r_msg.msg_namelen = r_addr.sa_socklen; + + memset(payload, 0, sizeof(payload)); + + r_msg.msg_iov = &iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, sizeof(struct sockaddr_in)); + + a = inet_ntop(AF_INET, &r_addr.sa.in.sin_addr, ip, sizeof(ip)); + assert_non_null(a); + assert_string_equal(a, torture_server_address(AF_INET)); + + close(s); +} + +static void test_sendmsg_recvmsg_ipv4_connected_null(void **state) +{ + struct torture_address send_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct msghdr s_msg = { + .msg_namelen = 0, + }; + struct msghdr r_msg = { + .msg_namelen = 0, + }; + struct iovec iov; + char payload[] = "PACKET"; + ssize_t ret; + int rc; + int s; + + (void)state; /* unused */ + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + send_addr.sa.in.sin_family = AF_INET; + send_addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &send_addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &send_addr.sa.s, send_addr.sa_socklen); + + /* msg_name = NULL */ + + iov.iov_base = (void *)payload; + iov.iov_len = sizeof(payload); + + s_msg.msg_iov = &iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + /* msg_name = NULL */ + + memset(payload, 0, sizeof(payload)); + + r_msg.msg_iov = &iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + assert_int_equal(r_msg.msg_namelen, 0); + assert_null(r_msg.msg_name); + + close(s); +} + +static void test_sendmsg_recvmsg_ipv4_connected_namelen(void **state) +{ + struct torture_address send_addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + struct msghdr s_msg = { + .msg_namelen = 0, + }; + struct msghdr r_msg = { + .msg_namelen = sizeof(struct sockaddr_storage), + }; + struct iovec iov; + char payload[] = "PACKET"; + ssize_t ret; + int rc; + int s; + + (void)state; /* unused */ + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + send_addr.sa.in.sin_family = AF_INET; + send_addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &send_addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + rc = connect(s, &send_addr.sa.s, send_addr.sa_socklen); + + /* msg_name = NULL */ + + iov.iov_base = (void *)payload; + iov.iov_len = sizeof(payload); + + s_msg.msg_iov = &iov; + s_msg.msg_iovlen = 1; + + ret = sendmsg(s, &s_msg, 0); + assert_int_not_equal(ret, -1); + + /* msg_name = NULL */ + + memset(payload, 0, sizeof(payload)); + + r_msg.msg_iov = &iov; + r_msg.msg_iovlen = 1; + + ret = recvmsg(s, &r_msg, 0); + assert_int_not_equal(ret, -1); + + close(s); +} + +int main(void) { + int rc; + + const struct CMUnitTest sendmsg_tests[] = { + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4, + setup_echo_srv_udp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv6, + setup_echo_srv_udp_ipv6, + teardown), +#endif + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4_connected, + setup_echo_srv_udp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4_connected_null, + setup_echo_srv_udp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4_connected_namelen, + setup_echo_srv_udp_ipv4, + teardown), + }; + + rc = cmocka_run_group_tests(sendmsg_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_echo_udp_sendto_recvfrom.c b/tests/deckard/contrib/libswrap/tests/test_echo_udp_sendto_recvfrom.c new file mode 100644 index 0000000..bb22371 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_echo_udp_sendto_recvfrom.c @@ -0,0 +1,316 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +static int setup_echo_srv_udp_ipv4(void **state) +{ + torture_setup_echo_srv_udp_ipv4(state); + + return 0; +} + +#ifdef HAVE_IPV6 +static int setup_echo_srv_udp_ipv6(void **state) +{ + torture_setup_echo_srv_udp_ipv6(state); + + return 0; +} +#endif + +static int teardown(void **state) +{ + torture_teardown_echo_srv(state); + + return 0; +} + +static void test_sendto_recvfrom_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + for (i = 0; i < 10; i++) { + char ip[INET_ADDRSTRLEN] = {0}; + const char *a; + struct torture_address srv_in = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ret = sendto(s, + send_buf, + sizeof(send_buf), + 0, + &addr.sa.s, + addr.sa_socklen); + assert_int_not_equal(ret, -1); + + ret = recvfrom(s, + recv_buf, + sizeof(recv_buf), + 0, + &srv_in.sa.s, + &srv_in.sa_socklen); + assert_int_not_equal(ret, -1); + + a = inet_ntop(AF_INET, &srv_in.sa.in.sin_addr, ip, sizeof(ip)); + assert_non_null(a); + assert_string_equal(a, torture_server_address(AF_INET)); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + ret = sendto(s, + send_buf, + sizeof(send_buf), + 0, + &addr.sa.s, + addr.sa_socklen); + assert_int_not_equal(ret, -1); + + ret = recvfrom(s, + recv_buf, + sizeof(recv_buf), + 0, + NULL, + NULL); + assert_int_not_equal(ret, -1); + + close(s); +} + +#ifdef HAVE_IPV6 +static void test_sendto_recvfrom_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + char send_buf[64] = {0}; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int i; + int s; + + (void) state; /* unused */ + + s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + addr.sa.in6.sin6_family = AF_INET6; + addr.sa.in6.sin6_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET6, + torture_server_address(AF_INET6), + &addr.sa.in6.sin6_addr); + assert_int_equal(rc, 1); + + for (i = 0; i < 10; i++) { + char ip[INET6_ADDRSTRLEN] = {0}; + const char *a; + struct torture_address srv_in6 = { + .sa_socklen = sizeof(struct sockaddr_in6), + }; + + snprintf(send_buf, sizeof(send_buf), "packet.%d", i); + + ret = sendto(s, + send_buf, + sizeof(send_buf), + 0, + &addr.sa.s, + addr.sa_socklen); + assert_int_not_equal(ret, -1); + + ret = recvfrom(s, + recv_buf, + sizeof(recv_buf), + 0, + &srv_in6.sa.s, + &srv_in6.sa_socklen); + assert_int_not_equal(ret, -1); + + a = inet_ntop(AF_INET6, &srv_in6.sa.in6.sin6_addr, ip, sizeof(ip)); + assert_non_null(a); + assert_string_equal(a, torture_server_address(AF_INET6)); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + } + + ret = sendto(s, + send_buf, + sizeof(send_buf), + 0, + &addr.sa.s, + addr.sa_socklen); + assert_int_not_equal(ret, -1); + + ret = recvfrom(s, + recv_buf, + sizeof(recv_buf), + 0, + NULL, + NULL); + assert_int_not_equal(ret, -1); + + close(s); +} +#endif + +static void test_connect_sendto_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + char send_buf[] = "packet.0"; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int s; + + (void) state; /* unused */ + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + /* Now, connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + ret = sendto(s, + send_buf, + sizeof(send_buf), + 0, + &addr.sa.s, + addr.sa_socklen); + assert_return_code(ret, errno); + + ret = recvfrom(s, + recv_buf, + sizeof(recv_buf), + 0, + NULL, + 0); + assert_return_code(ret, errno); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + + close(s); +} + +static void test_connect_sendto_null_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_in), + }; + char send_buf[] = "packet.0"; + char recv_buf[64] = {0}; + ssize_t ret; + int rc; + int s; + + (void) state; /* unused */ + + addr.sa.in.sin_family = AF_INET; + addr.sa.in.sin_port = htons(torture_server_port()); + + rc = inet_pton(AF_INET, + torture_server_address(AF_INET), + &addr.sa.in.sin_addr); + assert_int_equal(rc, 1); + + s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + assert_int_not_equal(s, -1); + + /* Now, connect */ + rc = connect(s, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + ret = sendto(s, + send_buf, + sizeof(send_buf), + 0, + NULL, + 0); + assert_return_code(ret, errno); + + ret = recvfrom(s, + recv_buf, + sizeof(recv_buf), + 0, + NULL, + 0); + assert_return_code(ret, errno); + + assert_memory_equal(send_buf, recv_buf, sizeof(send_buf)); + + close(s); +} + +int main(void) { + int rc; + + const struct CMUnitTest sendto_tests[] = { + cmocka_unit_test_setup_teardown(test_sendto_recvfrom_ipv4, + setup_echo_srv_udp_ipv4, + teardown), +#ifdef HAVE_IPV6 + cmocka_unit_test_setup_teardown(test_sendto_recvfrom_ipv6, + setup_echo_srv_udp_ipv6, + teardown), +#endif + cmocka_unit_test_setup_teardown(test_connect_sendto_ipv4, + setup_echo_srv_udp_ipv4, + teardown), + cmocka_unit_test_setup_teardown(test_connect_sendto_null_ipv4, + setup_echo_srv_udp_ipv4, + teardown), + }; + + rc = cmocka_run_group_tests(sendto_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_ioctl.c b/tests/deckard/contrib/libswrap/tests/test_ioctl.c new file mode 100644 index 0000000..aebff91 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_ioctl.c @@ -0,0 +1,110 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/ioctl.h> + +#include <errno.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <limits.h> +#include <unistd.h> + +static int setup(void **state) +{ + char test_tmpdir[256]; + const char *p; + + (void) state; /* unused */ + + snprintf(test_tmpdir, sizeof(test_tmpdir), "/tmp/test_socket_wrapper_XXXXXX"); + + p = mkdtemp(test_tmpdir); + assert_non_null(p); + + *state = strdup(p); + setenv("SOCKET_WRAPPER_DIR", p, 1); + setenv("SOCKET_WRAPPER_DEFAULT_IFACE", "11", 1); + + return 0; +} + +static int teardown(void **state) +{ + char remove_cmd[PATH_MAX] = {0}; + char *s = (char *)*state; + int rc; + + if (s == NULL) { + return -1; + } + + snprintf(remove_cmd, sizeof(remove_cmd), "rm -rf %s", s); + free(s); + + rc = system(remove_cmd); + if (rc < 0) { + fprintf(stderr, "%s failed: %s", remove_cmd, strerror(errno)); + } + + return rc; +} + +static void test_swrap_socket(void **state) +{ + int rc; + + (void) state; /* unused */ + + rc = socket(1337, 1337, 0); + assert_int_equal(rc, -1); + assert_int_equal(errno, EAFNOSUPPORT); + + rc = socket(AF_INET, 1337, 0); + assert_int_equal(rc, -1); + assert_int_equal(errno, EPROTONOSUPPORT); + + rc = socket(AF_INET, SOCK_DGRAM, 10); + assert_int_equal(rc, -1); + assert_int_equal(errno, EPROTONOSUPPORT); +} + +static void test_swrap_ioctl_sock(void **state) +{ + int fd; +#ifdef SIOCGPGRP + int rc; + int grp = -127; +#endif + + (void) state; /* unused */ + + fd = socket(AF_INET, SOCK_DGRAM, 0); + assert_int_not_equal(fd, -1); + +#ifdef SIOCGPGRP + rc = ioctl(fd, SIOCGPGRP, &grp); + assert_int_equal(rc, 0); + + assert_int_not_equal(grp, -127); +#endif + + close(fd); +} + +int main(void) { + int rc; + + const struct CMUnitTest ioctl_tests[] = { + cmocka_unit_test_setup_teardown(test_swrap_socket, setup, teardown), + cmocka_unit_test_setup_teardown(test_swrap_ioctl_sock, setup, teardown), + }; + + rc = cmocka_run_group_tests(ioctl_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_sendmsg_recvmsg_fd.c b/tests/deckard/contrib/libswrap/tests/test_sendmsg_recvmsg_fd.c new file mode 100644 index 0000000..30c9861 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_sendmsg_recvmsg_fd.c @@ -0,0 +1,116 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/wait.h> + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <stdio.h> + +static void test_sendmsg_recvmsg_fd(void **state) +{ + int sv[2]; + int child_fd, parent_fd; + int rc; + pid_t pid; + + (void) state; /* unused */ + + rc = socketpair(AF_LOCAL, SOCK_STREAM, 0, sv); + assert_int_not_equal(rc, -1); + + parent_fd = sv[0]; + child_fd = sv[1]; + + pid = fork(); + assert_int_not_equal(pid, -1); + + if (pid == 0) { + /* Child */ + struct msghdr child_msg; + char cmsgbuf[CMSG_SPACE(sizeof(int))]; + struct cmsghdr *cmsg; + int rcv_fd; + char buf[8]; + int i; + + memset(&child_msg, 0, sizeof(child_msg)); + child_msg.msg_control = cmsgbuf; + child_msg.msg_controllen = sizeof(cmsgbuf); + + do { + errno = 0; + rc = recvmsg(child_fd, &child_msg, 0); + } while (errno == EAGAIN || errno == EWOULDBLOCK); + assert_int_not_equal(rc, -1); + + cmsg = CMSG_FIRSTHDR(&child_msg); + assert_non_null(cmsg); + assert_int_equal(cmsg->cmsg_type, SCM_RIGHTS); + + memcpy(&rcv_fd, CMSG_DATA(cmsg), sizeof(rcv_fd)); + assert_int_not_equal(rcv_fd, -1); + + rc = read(rcv_fd, buf, sizeof(buf)); + assert_int_not_equal(rc, -1); + for (i = 0; i < 8; i++) { + assert_int_equal(buf[i], 0); + } + exit(0); + } else { + /* Parent */ + int pass_fd; + struct msghdr parent_msg; + struct cmsghdr *cmsg; + char cmsgbuf[CMSG_SPACE(sizeof(pass_fd))]; + char byte = '!'; + struct iovec iov; + int cs; + + pass_fd = open("/dev/zero", O_RDONLY); + assert_int_not_equal(pass_fd, -1); + + iov.iov_base = &byte; + iov.iov_len = 1; + + memset(&parent_msg, 0, sizeof(parent_msg)); + parent_msg.msg_iov = &iov; + parent_msg.msg_iovlen = 1; + parent_msg.msg_control = cmsgbuf; + parent_msg.msg_controllen = sizeof(cmsgbuf); + + cmsg = CMSG_FIRSTHDR(&parent_msg); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + cmsg->cmsg_len = CMSG_LEN(sizeof(pass_fd)); + + memcpy(CMSG_DATA(cmsg), &pass_fd, sizeof(pass_fd)); + parent_msg.msg_controllen = cmsg->cmsg_len; + + rc = sendmsg(parent_fd, &parent_msg, 0); + assert_int_not_equal(rc, -1); + + alarm(5); /* 5 seconds timeout for the child */ + rc = waitpid(pid, &cs, 0); + assert_int_not_equal(rc, -1); + } +} + +int main(void) { + int rc; + + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_sendmsg_recvmsg_fd), + }; + + rc = cmocka_run_group_tests(tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_swrap_unit.c b/tests/deckard/contrib/libswrap/tests/test_swrap_unit.c new file mode 100644 index 0000000..469aa24 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_swrap_unit.c @@ -0,0 +1,120 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> +#include <stdio.h> +#include <string.h> + +#include "config.h" + +#include "socket_wrapper.c" + +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + +/** + * test wrap_sendmsg_filter_cmsghdr() + * + * Prepare a message with two cmsg: + * - the first cmsg is a char buf with the string "Hello World" + * - the second cmsg is a char buf with the string "!\n" + * + * Both cmsgs will be copied without modification by + * wrap_sendmsg_filter_cmsghdr(), so we can check that the msg + * controllen, the cmsg sizes and the payload are the same. + * + * We use an not existing cmsg_type which triggers cmsg copying. + */ +static void test_sendmsg_cmsg(void **state) +{ + int rc = 0; + char byte = '!'; + struct iovec iov; + struct msghdr msg = { 0 }; + struct cmsghdr *cmsg; + char *cmsgbuf; + int cmsgbuf_size; + const char *s1 = "Hello World"; + const int s1_len = strlen(s1); + const char *s2 = "!\n"; + const int s2_len = strlen(s2); + uint8_t *cmbuf = NULL; + size_t cmlen = 0; + + (void)state; /* unused */ + + iov.iov_base = &byte; + iov.iov_len = 1; + + /* + * Prepare cmsgbuf and msg + */ + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + cmsgbuf_size = CMSG_SPACE(s1_len) + CMSG_SPACE(s2_len); + cmsgbuf = calloc(cmsgbuf_size, sizeof(char)); + assert_non_null(cmsgbuf); + msg.msg_control = cmsgbuf; + msg.msg_controllen = cmsgbuf_size; + + /* + * Prepare first cmsg with string "Hello World" + */ + cmsg = CMSG_FIRSTHDR(&msg); + assert_non_null(cmsg); + + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = ~0 - 1; + cmsg->cmsg_len = CMSG_LEN(s1_len); + memcpy(CMSG_DATA(cmsg), s1, s1_len); + + /* + * Prepare second cmsg with string "!\n" + */ + cmsg = CMSG_NXTHDR(&msg, cmsg); + assert_non_null(cmsg); + + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = ~0 - 2; + cmsg->cmsg_len = CMSG_LEN(s2_len); + memcpy(CMSG_DATA(cmsg), s2, s2_len); + + /* + * Now call swrap_sendmsg_filter_cmsghdr() on the msg + */ + rc = swrap_sendmsg_filter_cmsghdr(&msg, &cmbuf, &cmlen); + assert_return_code(rc, errno); + assert_int_equal(cmlen, msg.msg_controllen); + + /* + * Insert filtered cmsgbug into msg and validate cmsgs. + */ + msg.msg_control = cmbuf; + + cmsg = CMSG_FIRSTHDR(&msg); + assert_non_null(cmsg); + assert_int_equal(cmsg->cmsg_len, CMSG_LEN(s1_len)); + assert_memory_equal(CMSG_DATA(cmsg), s1, s1_len); + + cmsg = CMSG_NXTHDR(&msg, cmsg); + assert_non_null(cmsg); + assert_int_equal(cmsg->cmsg_len, CMSG_LEN(s2_len)); + assert_memory_equal(CMSG_DATA(cmsg), s2, s2_len); + + free(cmbuf); + free(cmsgbuf); +} +#endif + +int main(void) { + int rc; + + const struct CMUnitTest unit_tests[] = { +#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL + cmocka_unit_test(test_sendmsg_cmsg), +#endif + }; + + rc = cmocka_run_group_tests(unit_tests, NULL, NULL); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/test_tcp_listen.c b/tests/deckard/contrib/libswrap/tests/test_tcp_listen.c new file mode 100644 index 0000000..5641c47 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/test_tcp_listen.c @@ -0,0 +1,115 @@ +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include "config.h" +#include "torture.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#ifdef HAVE_RPC_RPC_H +#include <rpc/rpc.h> +#endif + +static int setup(void **state) +{ + torture_setup_socket_dir(state); + + return 0; +} + +static int teardown(void **state) +{ + torture_teardown_socket_dir(state); + + return 0; +} + +static void test_listen_unbound_ipv4(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s1; + int s2; + + (void) state; /* unused */ + + s1 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s1, errno); + + rc = listen(s1, SOMAXCONN); + assert_return_code(rc, errno); + + rc = getsockname(s1, &addr.sa.s, &addr.sa_socklen); + assert_return_code(rc, errno); + assert_int_equal(addr.sa_socklen, sizeof(struct sockaddr_in)); + assert_in_range(ntohs(addr.sa.in.sin_port), 1024, 65535); + + s2 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s2, errno); + + rc = connect(s2, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + close(s1); + close(s2); +} + +#ifdef HAVE_IPV6 +static void test_listen_unbound_ipv6(void **state) +{ + struct torture_address addr = { + .sa_socklen = sizeof(struct sockaddr_storage), + }; + int rc; + int s1; + int s2; + + (void) state; /* unused */ + + s1 = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s1, errno); + + rc = listen(s1, SOMAXCONN); + assert_return_code(rc, errno); + + rc = getsockname(s1, &addr.sa.s, &addr.sa_socklen); + assert_return_code(rc, errno); + assert_int_equal(addr.sa_socklen, sizeof(struct sockaddr_in6)); + assert_in_range(ntohs(addr.sa.in6.sin6_port), 1024, 65535); + + s2 = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); + assert_return_code(s2, errno); + + rc = connect(s2, &addr.sa.s, addr.sa_socklen); + assert_return_code(rc, errno); + + close(s1); + close(s2); +} +#endif /* HAVE_IPV6 */ + +int main(void) { + int rc; + + const struct CMUnitTest tcp_listen_tests[] = { + cmocka_unit_test(test_listen_unbound_ipv4), +#ifdef HAVE_IPV6 + cmocka_unit_test(test_listen_unbound_ipv6), +#endif /* HAVE_IPV6 */ + }; + + rc = cmocka_run_group_tests(tcp_listen_tests, setup, teardown); + + return rc; +} diff --git a/tests/deckard/contrib/libswrap/tests/torture.c b/tests/deckard/contrib/libswrap/tests/torture.c new file mode 100644 index 0000000..d3ad84a --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/torture.c @@ -0,0 +1,318 @@ +/* + * Copyright (C) Andreas Schneider 2013 <asn@samba.org> + * + * 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 author 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 AUTHOR 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 AUTHOR 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. + */ + +#include "config.h" + +#include "torture.h" + +#include <errno.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/socket.h> +#include <signal.h> +#include <fcntl.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <time.h> +#include <stdbool.h> + +#define TORTURE_ECHO_SRV_IPV4 "127.0.0.10" +/* socket wrapper IPv6 prefix fd00::5357:5fxx */ +#define TORTURE_ECHO_SRV_IPV6 "fd00::5357:5f0a" +#define TORTURE_ECHO_SRV_PORT 7 + +#define TORTURE_SOCKET_DIR "/tmp/w_XXXXXX" +#define TORTURE_ECHO_SRV_PIDFILE "echo_srv.pid" +#define TORTURE_PCAP_FILE "socket_trace.pcap" + +const char *torture_server_address(int family) +{ + switch (family) { + case AF_INET: { + const char *ip4 = getenv("TORTURE_SERVER_ADDRESS_IPV4"); + + if (ip4 != NULL && ip4[0] != '\0') { + return ip4; + } + + return TORTURE_ECHO_SRV_IPV4; + } +#ifdef HAVE_IPV6 + case AF_INET6: { + const char *ip6 = getenv("TORTURE_SERVER_ADDRESS_IPV6"); + + if (ip6 != NULL && ip6[0] != '\0') { + return ip6; + } + + return TORTURE_ECHO_SRV_IPV6; + } +#endif + default: + return NULL; + } + + return NULL; +} + +int torture_server_port(void) +{ + char *env = getenv("TORTURE_SERVER_PORT"); + + if (env != NULL && env[0] != '\0' && strlen(env) < 6) { + int port = atoi(env); + + if (port > 0 && port < 65536) { + return port; + } + } + + return TORTURE_ECHO_SRV_PORT; +} + +void torture_setup_socket_dir(void **state) +{ + struct torture_state *s; + const char *p; + size_t len; + + s = malloc(sizeof(struct torture_state)); + assert_non_null(s); + + s->socket_dir = strdup(TORTURE_SOCKET_DIR); + assert_non_null(s->socket_dir); + + p = mkdtemp(s->socket_dir); + assert_non_null(p); + + /* pcap file */ + len = strlen(p) + 1 + strlen(TORTURE_PCAP_FILE) + 1; + + s->pcap_file = malloc(len); + assert_non_null(s->pcap_file); + + snprintf(s->pcap_file, len, "%s/%s", p, TORTURE_PCAP_FILE); + + /* pid file */ + len = strlen(p) + 1 + strlen(TORTURE_ECHO_SRV_PIDFILE) + 1; + + s->srv_pidfile = malloc(len); + assert_non_null(s->srv_pidfile); + + snprintf(s->srv_pidfile, len, "%s/%s", p, TORTURE_ECHO_SRV_PIDFILE); + + setenv("SOCKET_WRAPPER_DIR", p, 1); + setenv("SOCKET_WRAPPER_DEFAULT_IFACE", "170", 1); + setenv("SOCKET_WRAPPER_PCAP_FILE", s->pcap_file, 1); + + *state = s; +} + +static void torture_setup_echo_srv_ip(void **state, + const char *ip, + int port, + int type) +{ + struct torture_state *s; + char start_echo_srv[1024] = {0}; + const char *t; + int count = 0; + int rc; + + torture_setup_socket_dir(state); + + s = *state; + + switch (type) { + case SOCK_STREAM: + t = "-t"; + break; + case SOCK_DGRAM: + t = "-u"; + break; + default: + t = ""; + break; + } + + /* set default iface for the server */ + setenv("SOCKET_WRAPPER_DEFAULT_IFACE", "10", 1); + + snprintf(start_echo_srv, sizeof(start_echo_srv), + "%s/tests/echo_srv -b %s -p %d -D %s --pid %s", + BINARYDIR, ip, port, t, s->srv_pidfile); + + rc = system(start_echo_srv); + assert_int_equal(rc, 0); + + do { + struct stat sb; + + count++; + if (count > 100) { + break; + } + + rc = stat(s->srv_pidfile, &sb); + usleep(200); + } while (rc != 0); + assert_int_equal(rc, 0); + + /* set default iface for the client */ + setenv("SOCKET_WRAPPER_DEFAULT_IFACE", "170", 1); +} + +void torture_setup_echo_srv_udp_ipv4(void **state) +{ + torture_setup_echo_srv_ip(state, + "0.0.0.0", + torture_server_port(), + SOCK_DGRAM); +} + +void torture_setup_echo_srv_udp_ipv6(void **state) +{ + torture_setup_echo_srv_ip(state, + "::", + torture_server_port(), + SOCK_DGRAM); +} + +void torture_setup_echo_srv_tcp_ipv4(void **state) +{ + torture_setup_echo_srv_ip(state, + "0.0.0.0", + torture_server_port(), + SOCK_STREAM); +} + +void torture_setup_echo_srv_tcp_ipv6(void **state) +{ + torture_setup_echo_srv_ip(state, + "::", + torture_server_port(), + SOCK_STREAM); +} + +void torture_teardown_socket_dir(void **state) +{ + struct torture_state *s = *state; + char *env = getenv("TORTURE_SKIP_CLEANUP"); + char remove_cmd[1024] = {0}; + int rc; + + if (env != NULL && env[0] == '1') { + fprintf(stderr, ">>> Skipping cleanup of %s", s->socket_dir); + } else { + snprintf(remove_cmd, sizeof(remove_cmd), "rm -rf %s", s->socket_dir); + + rc = system(remove_cmd); + if (rc < 0) { + fprintf(stderr, "%s failed: %s", remove_cmd, strerror(errno)); + } + } + + free(s->socket_dir); + free(s->pcap_file); + free(s->srv_pidfile); + free(s); +} + +void torture_teardown_echo_srv(void **state) +{ + struct torture_state *s = *state; + char buf[8] = {0}; + long int tmp; + ssize_t rc; + pid_t pid; + int fd; + bool is_running = true; + int count; + + /* read the pidfile */ + fd = open(s->srv_pidfile, O_RDONLY); + if (fd < 0) { + goto done; + } + + rc = read(fd, buf, sizeof(buf)); + close(fd); + if (rc <= 0) { + goto done; + } + + buf[sizeof(buf) - 1] = '\0'; + + tmp = strtol(buf, NULL, 10); + if (tmp == 0 || tmp > 0xFFFF || errno == ERANGE) { + goto done; + } + + pid = (pid_t)(tmp & 0xFFFF); + + for (count = 0; count < 10; count++) { + /* Make sure the daemon goes away! */ + kill(pid, SIGTERM); + + usleep(200); + + rc = kill(pid, 0); + if (rc != 0) { + is_running = false; + break; + } + } + + if (is_running) { + fprintf(stderr, + "WARNING the echo server is still running!\n"); + } + +done: + torture_teardown_socket_dir(state); +} + +void torture_generate_random_buffer(uint8_t *out, int len) +{ + int i; + + srand(time(NULL)); + + for (i = 0; i < len; i++) { + out[i] = (uint8_t)rand(); + } +} diff --git a/tests/deckard/contrib/libswrap/tests/torture.h b/tests/deckard/contrib/libswrap/tests/torture.h new file mode 100644 index 0000000..921195d --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/torture.h @@ -0,0 +1,88 @@ +/* + * Copyright (C) Andreas Schneider 2013 <asn@samba.org> + * + * 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 author 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 AUTHOR 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 AUTHOR 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. + */ + +#ifndef _TORTURE_H +#define _TORTURE_H + +#include "config.h" + +#include <sys/socket.h> +#include <sys/un.h> +#include <netinet/in.h> + +#include <stdarg.h> +#include <stddef.h> +#include <setjmp.h> +#include <cmocka.h> + +#include <stdint.h> +#include <string.h> + +struct torture_address { + socklen_t sa_socklen; + union { + struct sockaddr s; + struct sockaddr_in in; +#ifdef HAVE_IPV6 + struct sockaddr_in6 in6; +#endif + struct sockaddr_un un; + struct sockaddr_storage ss; + } sa; +}; + +struct torture_state { + char *socket_dir; + char *pcap_file; + char *srv_pidfile; +}; + +#ifndef ZERO_STRUCT +#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x)) +#endif + +const char *torture_server_address(int domain); +int torture_server_port(void); + +void torture_setup_socket_dir(void **state); +void torture_setup_echo_srv_udp_ipv4(void **state); +void torture_setup_echo_srv_udp_ipv6(void **state); + +void torture_setup_echo_srv_tcp_ipv4(void **state); +void torture_setup_echo_srv_tcp_ipv6(void **state); + +void torture_teardown_socket_dir(void **state); +void torture_teardown_echo_srv(void **state); + +void torture_generate_random_buffer(uint8_t *out, int len); +#endif /* _TORTURE_H */ diff --git a/tests/deckard/contrib/libswrap/tests/valgrind.supp b/tests/deckard/contrib/libswrap/tests/valgrind.supp new file mode 100644 index 0000000..9857825 --- /dev/null +++ b/tests/deckard/contrib/libswrap/tests/valgrind.supp @@ -0,0 +1,16 @@ +### GLIBC +{ + glibc_dlopen_alloc + Memcheck:Leak + fun:calloc + fun:_dlerror_run + fun:dlopen@@GLIBC_2.2.5 +} + +{ + glibc_dlclose_alloc + Memcheck:Leak + fun:calloc + fun:_dlerror_run + fun:dlclose +} |