--- /dev/null
+*.a
+*.o
+.*
+*.swp
+*~
+build
+obj*/
+cscope.*
+tags
--- /dev/null
+Andreas Schneider <asn@samba.org>
+Nikos Mavrogiannopoulos
--- /dev/null
+# Required cmake version
+cmake_minimum_required(VERSION 3.5.0)
+cmake_policy(SET CMP0048 NEW)
+
+# Specify search path for CMake modules to be loaded by include()
+# and find_package()
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
+
+# Add defaults for cmake
+# Those need to be set before the project() call.
+include(DefineCMakeDefaults)
+include(DefineCompilerFlags)
+
+project(priv_wrapper VERSION 1.1.9 LANGUAGES C)
+
+# global needed variables
+set(APPLICATION_NAME ${PROJECT_NAME})
+
+# SOVERSION scheme: CURRENT.AGE.REVISION
+# If there was an incompatible interface change:
+# Increment CURRENT. Set AGE and REVISION to 0
+# If there was a compatible interface change:
+# Increment AGE. Set REVISION to 0
+# If the source code was changed, but there were no interface changes:
+# Increment REVISION.
+set(LIBRARY_VERSION "0.1.9")
+set(LIBRARY_SOVERSION "0")
+
+# add definitions
+include(DefinePlatformDefaults)
+include(DefineInstallationPaths)
+include(DefineOptions.cmake)
+include(CPackConfig.cmake)
+include(CompilerChecks.cmake)
+
+# disallow in-source build
+include(MacroEnsureOutOfSourceBuild)
+macro_ensure_out_of_source_build("${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 1.1.0 REQUIRED)
+
+ include(AddCMockaTest)
+ add_subdirectory(tests)
+endif (UNIT_TESTING)
+
+# pkg-config file
+get_filename_component(PRIV_WRAPPER_LIB ${PRIV_WRAPPER_LOCATION} NAME)
+
+configure_file(priv_wrapper.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/priv_wrapper.pc @ONLY)
+install(
+ FILES
+ ${CMAKE_CURRENT_BINARY_DIR}/priv_wrapper.pc
+ DESTINATION
+ ${LIB_INSTALL_DIR}/pkgconfig
+ COMPONENT
+ pkgconfig
+)
+
+# cmake config files
+configure_file(priv_wrapper-config-version.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/priv_wrapper-config-version.cmake @ONLY)
+configure_file(priv_wrapper-config.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/priv_wrapper-config.cmake @ONLY)
+install(
+ FILES
+ ${CMAKE_CURRENT_BINARY_DIR}/priv_wrapper-config-version.cmake
+ ${CMAKE_CURRENT_BINARY_DIR}/priv_wrapper-config.cmake
+ DESTINATION
+ ${CMAKE_INSTALL_DIR}/priv_wrapper
+ COMPONENT
+ devel
+)
+
+add_subdirectory(doc)
--- /dev/null
+# For help take a look at:
+# http://www.cmake.org/Wiki/CMake:CPackConfiguration
+
+### general settings
+set(CPACK_PACKAGE_NAME ${PROJECT_NAME})
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "The SSH library")
+set(CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_SOURCE_DIR}/README.md")
+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}/LICENSE")
+
+
+### versions
+set(CPACK_PACKAGE_VERSION "${PROJECT_VERSION}")
+
+
+### source generator
+set(CPACK_SOURCE_GENERATOR "TGZ")
+set(CPACK_SOURCE_IGNORE_FILES "~$;[.]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 ${CPACK_PACKAGE_NAME}-${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_PROJECTS_GROUP "Runtime")
+set(CPACK_COMPONENT_LIBRARIES_GROUP "Development")
+set(CPACK_COMPONENT_HEADERS_GROUP "Development")
+
+include(CPack)
--- /dev/null
+set(UPDATE_TYPE "true")
+
+set(CTEST_PROJECT_NAME "socket_wrapper")
+set(CTEST_NIGHTLY_START_TIME "01:00:00 UTC")
+
+set(CTEST_DROP_METHOD "https")
+set(CTEST_DROP_SITE "test.cmocka.org")
+set(CTEST_DROP_LOCATION "/submit.php?project=${CTEST_PROJECT_NAME}")
+set(CTEST_DROP_SITE_CDASH TRUE)
--- /dev/null
+include(AddCCompilerFlag)
+include(CheckCCompilerFlagSSP)
+
+if (UNIX)
+ #
+ # Check for -Werror turned on if possible
+ #
+ # This will prevent that compiler flags are detected incorrectly.
+ #
+ check_c_compiler_flag("-Werror" REQUIRED_FLAGS_WERROR)
+ if (REQUIRED_FLAGS_WERROR)
+ set(CMAKE_REQUIRED_FLAGS "-Werror")
+
+ if (PICKY_DEVELOPER)
+ list(APPEND SUPPORTED_COMPILER_FLAGS "-Werror")
+ endif()
+ endif()
+
+ add_c_compiler_flag("-std=gnu99" SUPPORTED_COMPILER_FLAGS)
+ #add_c_compiler_flag("-Wpedantic" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wall" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wshadow" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wmissing-prototypes" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wcast-align" SUPPORTED_COMPILER_FLAGS)
+ #add_c_compiler_flag("-Wcast-qual" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=address" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wstrict-prototypes" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=strict-prototypes" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wwrite-strings" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=write-strings" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror-implicit-function-declaration" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wpointer-arith" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=pointer-arith" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wdeclaration-after-statement" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=declaration-after-statement" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wreturn-type" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=return-type" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wuninitialized" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=uninitialized" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wimplicit-fallthrough" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=strict-overflow" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wstrict-overflow=2" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wno-format-zero-length" SUPPORTED_COMPILER_FLAGS)
+
+ check_c_compiler_flag("-Wformat" REQUIRED_FLAGS_WFORMAT)
+ if (REQUIRED_FLAGS_WFORMAT)
+ list(APPEND SUPPORTED_COMPILER_FLAGS "-Wformat")
+ set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Wformat")
+ endif()
+ add_c_compiler_flag("-Wformat-security" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Werror=format-security" SUPPORTED_COMPILER_FLAGS)
+
+ # Allow zero for a variadic macro argument
+ string(TOLOWER "${CMAKE_C_COMPILER_ID}" _C_COMPILER_ID)
+ if ("${_C_COMPILER_ID}" STREQUAL "clang")
+ add_c_compiler_flag("-Wno-gnu-zero-variadic-macro-arguments" SUPPORTED_COMPILER_FLAGS)
+ endif()
+
+ add_c_compiler_flag("-fno-common" SUPPORTED_COMPILER_FLAGS)
+
+ if (CMAKE_BUILD_TYPE)
+ string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
+ if (CMAKE_BUILD_TYPE_LOWER MATCHES (release|relwithdebinfo|minsizerel))
+ add_c_compiler_flag("-Wp,-D_FORTIFY_SOURCE=2" SUPPORTED_COMPILER_FLAGS)
+ endif()
+ endif()
+
+ check_c_compiler_flag_ssp("-fstack-protector-strong" WITH_STACK_PROTECTOR_STRONG)
+ if (WITH_STACK_PROTECTOR_STRONG)
+ list(APPEND SUPPORTED_COMPILER_FLAGS "-fstack-protector-strong")
+ # This is needed as Solaris has a seperate libssp
+ if (SOLARIS)
+ list(APPEND SUPPORTED_LINKER_FLAGS "-fstack-protector-strong")
+ endif()
+ else (WITH_STACK_PROTECTOR_STRONG)
+ check_c_compiler_flag_ssp("-fstack-protector" WITH_STACK_PROTECTOR)
+ if (WITH_STACK_PROTECTOR)
+ list(APPEND SUPPORTED_COMPILER_FLAGS "-fstack-protector")
+ # This is needed as Solaris has a seperate libssp
+ if (SOLARIS)
+ list(APPEND SUPPORTED_LINKER_FLAGS "-fstack-protector")
+ endif()
+ endif()
+ endif (WITH_STACK_PROTECTOR_STRONG)
+
+ check_c_compiler_flag_ssp("-fstack-clash-protection" WITH_STACK_CLASH_PROTECTION)
+ if (WITH_STACK_CLASH_PROTECTION)
+ list(APPEND SUPPORTED_COMPILER_FLAGS "-fstack-clash-protection")
+ endif()
+
+ if (PICKY_DEVELOPER)
+ add_c_compiler_flag("-Wno-error=deprecated-declarations" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("-Wno-error=tautological-compare" SUPPORTED_COMPILER_FLAGS)
+ endif()
+
+ # Unset CMAKE_REQUIRED_FLAGS
+ unset(CMAKE_REQUIRED_FLAGS)
+endif()
+
+if (MSVC)
+ add_c_compiler_flag("/D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("/D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_COUNT=1" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("/D _CRT_NONSTDC_NO_WARNINGS=1" SUPPORTED_COMPILER_FLAGS)
+ add_c_compiler_flag("/D _CRT_SECURE_NO_WARNINGS=1" SUPPORTED_COMPILER_FLAGS)
+endif()
+
+set(DEFAULT_C_COMPILE_FLAGS ${SUPPORTED_COMPILER_FLAGS} CACHE INTERNAL "Default C Compiler Flags" FORCE)
+set(DEFAULT_LINK_FLAGS ${SUPPORTED_LINKER_FLAGS} CACHE INTERNAL "Default C Linker Flags" FORCE)
--- /dev/null
+include(CheckIncludeFile)
+include(CheckSymbolExists)
+include(CheckFunctionExists)
+include(CheckLibraryExists)
+include(CheckTypeSize)
+include(CheckStructHasMember)
+include(CheckPrototypeDefinition)
+include(TestBigEndian)
+
+set(PACKAGE ${PROJECT_NAME})
+set(VERSION ${PROJECT_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)
+ unset(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/prctl.h HAVE_SYS_PRCTL_H)
+check_include_file(sys/time.h HAVE_SYS_TIME_H)
+check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
+
+# FUNCTIONS
+check_function_exists(chroot HAVE_CHROOT)
+check_function_exists(prctl HAVE_PRCTL)
+check_function_exists(pledge HAVE_PLEDGE)
+check_function_exists(setrlimit HAVE_SETRLIMIT)
+
+
+if (UNIX)
+ find_library(DLFCN_LIBRARY dl)
+ if (DLFCN_LIBRARY)
+ string(APPEND _REQUIRED_LIBRARIES ${DLFCN_LIBRARY})
+ else()
+ check_function_exists(dlopen HAVE_DLOPEN)
+ if (NOT HAVE_DLOPEN)
+ message(FATAL_ERROR "FATAL: No dlopen() function detected")
+ endif()
+ endif()
+endif (UNIX)
+
+###########################################################
+# For detecting attributes we need to treat warnings as
+# errors
+set(CMAKE_REQUIRED_FLAGS "-Werror")
+
+check_c_source_compiles("
+void test_constructor_attribute(void) __attribute__ ((constructor));
+
+void test_constructor_attribute(void)
+{
+ return;
+}
+
+int main(void) {
+ return 0;
+}" HAVE_CONSTRUCTOR_ATTRIBUTE)
+
+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("
+#define FALL_THROUGH __attribute__((fallthrough))
+
+int main(void) {
+ int i = 2;
+
+ switch (i) {
+ case 0:
+ FALL_THROUGH;
+ case 1:
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}" HAVE_FALLTHROUGH_ATTRIBUTE)
+
+check_c_source_compiles("
+void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
+
+int main(void) {
+ return 0;
+}" HAVE_FUNCTION_ATTRIBUTE_FORMAT)
+
+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)
+
+# Stop treating wanrings as errors
+unset(CMAKE_REQUIRED_FLAGS)
+###########################################################
+# ENDIAN
+if (NOT WIN32)
+ test_big_endian(WORDS_BIGENDIAN)
+endif (NOT WIN32)
+
+set(PRIVWRAP_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} CACHE INTERNAL "priv_wrapper required system libraries")
--- /dev/null
+option(UNIT_TESTING "Build with unit tests" OFF)
+option(HELGRIND_TESTING "Run threaded unit tests with helgrind" OFF)
+option(PICKY_DEVELOPER "Build with picky developer flags" OFF)
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
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+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
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+
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+
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+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
--- /dev/null
+Obtaining the sources
+=====================
+
+Source tarballs for priv_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/priv_wrapper.git
+
+To create a local copy, run
+
+ $ git clone git://git.samba.org/priv_wrapper.git
+ $ cd priv_wrapper
+
+Building from sources
+=====================
+
+priv_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
+==========
+
+priv_wrapper is installed into the prefix directory
+after running "cmake" and "make" with
+
+ $ make install
+
--- /dev/null
+PRIV_WRAPPER
+============
+
+This is a wrapper to disable resource limits and other privilege dropping.
+
+DESCRIPTION
+-----------
+
+More details can be found in the manpage:
+
+ man -l ./doc/priv_wrapper.1
+
+or the raw text version:
+
+ less ./doc/priv_wrapper.1.txt
+
+For installation instructions please take a look at the README.install file.
+
+MAILINGLIST
+-----------
+
+As the mailing list samba-technical is used and can be found here:
+
+https://lists.samba.org/mailman/listinfo/samba-technical
--- /dev/null
+#
+# add_c_compiler_flag("-Werror" SUPPORTED_CFLAGS)
+#
+# Copyright (c) 2018 Andreas Schneider <asn@cryptomilk.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+include(CheckCCompilerFlag)
+
+macro(add_c_compiler_flag _COMPILER_FLAG _OUTPUT_VARIABLE)
+ string(TOUPPER ${_COMPILER_FLAG} _COMPILER_FLAG_NAME)
+ string(REGEX REPLACE "^-" "" _COMPILER_FLAG_NAME "${_COMPILER_FLAG_NAME}")
+ string(REGEX REPLACE "(-|=|\ )" "_" _COMPILER_FLAG_NAME "${_COMPILER_FLAG_NAME}")
+
+ check_c_compiler_flag("${_COMPILER_FLAG}" WITH_${_COMPILER_FLAG_NAME}_FLAG)
+ if (WITH_${_COMPILER_FLAG_NAME}_FLAG)
+ #string(APPEND ${_OUTPUT_VARIABLE} "${_COMPILER_FLAG} ")
+ list(APPEND ${_OUTPUT_VARIABLE} ${_COMPILER_FLAG})
+ endif()
+endmacro()
--- /dev/null
+#
+# Copyright (c) 2007 Daniel Gollub <dgollub@suse.de>
+# Copyright (c) 2007-2018 Andreas Schneider <asn@cryptomilk.org>
+# Copyright (c) 2018 Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+#.rst:
+# AddCMockaTest
+# -------------
+#
+# This file provides a function to add a test
+#
+# Functions provided
+# ------------------
+#
+# ::
+#
+# add_cmocka_test(target_name
+# SOURCES src1 src2 ... srcN
+# [COMPILE_OPTIONS opt1 opt2 ... optN]
+# [LINK_LIBRARIES lib1 lib2 ... libN]
+# [LINK_OPTIONS lopt1 lop2 .. loptN]
+# )
+#
+# ``target_name``:
+# Required, expects the name of the test which will be used to define a target
+#
+# ``SOURCES``:
+# Required, expects one or more source files names
+#
+# ``COMPILE_OPTIONS``:
+# Optional, expects one or more options to be passed to the compiler
+#
+# ``LINK_LIBRARIES``:
+# Optional, expects one or more libraries to be linked with the test
+# executable.
+#
+# ``LINK_OPTIONS``:
+# Optional, expects one or more options to be passed to the linker
+#
+#
+# Example:
+#
+# .. code-block:: cmake
+#
+# add_cmocka_test(my_test
+# SOURCES my_test.c other_source.c
+# COMPILE_OPTIONS -g -Wall
+# LINK_LIBRARIES mylib
+# LINK_OPTIONS -Wl,--enable-syscall-fixup
+# )
+#
+# Where ``my_test`` is the name of the test, ``my_test.c`` and
+# ``other_source.c`` are sources for the binary, ``-g -Wall`` are compiler
+# options to be used, ``mylib`` is a target of a library to be linked, and
+# ``-Wl,--enable-syscall-fixup`` is an option passed to the linker.
+#
+
+enable_testing()
+include(CTest)
+
+if (CMAKE_CROSSCOMPILING)
+ if (WIN32)
+ find_program(WINE_EXECUTABLE
+ NAMES wine)
+ set(TARGET_SYSTEM_EMULATOR ${WINE_EXECUTABLE} CACHE INTERNAL "")
+ endif()
+endif()
+
+function(ADD_CMOCKA_TEST _TARGET_NAME)
+
+ set(one_value_arguments
+ )
+
+ set(multi_value_arguments
+ SOURCES
+ COMPILE_OPTIONS
+ LINK_LIBRARIES
+ LINK_OPTIONS
+ )
+
+ cmake_parse_arguments(_add_cmocka_test
+ ""
+ "${one_value_arguments}"
+ "${multi_value_arguments}"
+ ${ARGN}
+ )
+
+ if (NOT DEFINED _add_cmocka_test_SOURCES)
+ message(FATAL_ERROR "No sources provided for target ${_TARGET_NAME}")
+ endif()
+
+ add_executable(${_TARGET_NAME} ${_add_cmocka_test_SOURCES})
+
+ if (DEFINED _add_cmocka_test_COMPILE_OPTIONS)
+ target_compile_options(${_TARGET_NAME}
+ PRIVATE ${_add_cmocka_test_COMPILE_OPTIONS}
+ )
+ endif()
+
+ if (DEFINED _add_cmocka_test_LINK_LIBRARIES)
+ target_link_libraries(${_TARGET_NAME}
+ PRIVATE ${_add_cmocka_test_LINK_LIBRARIES}
+ )
+ endif()
+
+ if (DEFINED _add_cmocka_test_LINK_OPTIONS)
+ set_target_properties(${_TARGET_NAME}
+ PROPERTIES LINK_FLAGS
+ ${_add_cmocka_test_LINK_OPTIONS}
+ )
+ endif()
+
+ add_test(${_TARGET_NAME}
+ ${TARGET_SYSTEM_EMULATOR} ${_TARGET_NAME}
+ )
+
+endfunction (ADD_CMOCKA_TEST)
--- /dev/null
+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.
--- /dev/null
+# - 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.
+
+# Requires cmake 3.10
+#include_guard(GLOBAL)
+include(CheckCSourceCompiles)
+include(CMakeCheckCompilerFlagCommonPatterns)
+
+macro(CHECK_C_COMPILER_FLAG_SSP _FLAG _RESULT)
+ set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
+ set(CMAKE_REQUIRED_FLAGS "${_FLAG}")
+
+ # Normalize locale during test compilation.
+ set(_CheckCCompilerFlag_LOCALE_VARS LC_ALL LC_MESSAGES LANG)
+ foreach(v ${_CheckCCompilerFlag_LOCALE_VARS})
+ set(_CheckCCompilerFlag_SAVED_${v} "$ENV{${v}}")
+ set(ENV{${v}} C)
+ endforeach()
+
+ CHECK_COMPILER_FLAG_COMMON_PATTERNS(_CheckCCompilerFlag_COMMON_PATTERNS)
+ check_c_source_compiles("int main(int argc, char **argv) { char buffer[256]; return buffer[argc]=0;}"
+ ${_RESULT}
+ # Some compilers do not fail with a bad flag
+ FAIL_REGEX "command line option .* is valid for .* but not for C" # GNU
+ ${_CheckCCompilerFlag_COMMON_PATTERNS})
+ foreach(v ${_CheckCCompilerFlag_LOCALE_VARS})
+ set(ENV{${v}} ${_CheckCCompilerFlag_SAVED_${v}})
+ unset(_CheckCCompilerFlag_SAVED_${v})
+ endforeach()
+ unset(_CheckCCompilerFlag_LOCALE_VARS)
+ unset(_CheckCCompilerFlag_COMMON_PATTERNS)
+
+ set(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}")
+endmacro(CHECK_C_COMPILER_FLAG_SSP)
--- /dev/null
+# 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)
+
+# Create the compile command database for clang by default
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# Always build with -fPIC
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
--- /dev/null
+if (UNIX AND NOT WIN32)
+ # Activate with: -DCMAKE_BUILD_TYPE=Profiling
+ set(CMAKE_C_FLAGS_PROFILING "-O0 -g -fprofile-arcs -ftest-coverage"
+ CACHE STRING "Flags used by the C compiler during PROFILING builds.")
+ set(CMAKE_CXX_FLAGS_PROFILING "-O0 -g -fprofile-arcs -ftest-coverage"
+ CACHE STRING "Flags used by the CXX compiler during PROFILING builds.")
+ set(CMAKE_SHARED_LINKER_FLAGS_PROFILING "-fprofile-arcs -ftest-coverage"
+ CACHE STRING "Flags used by the linker during the creation of shared libraries during PROFILING builds.")
+ set(CMAKE_MODULE_LINKER_FLAGS_PROFILING "-fprofile-arcs -ftest-coverage"
+ CACHE STRING "Flags used by the linker during the creation of shared libraries during PROFILING builds.")
+ set(CMAKE_EXEC_LINKER_FLAGS_PROFILING "-fprofile-arcs -ftest-coverage"
+ CACHE STRING "Flags used by the linker during PROFILING builds.")
+
+ # Activate with: -DCMAKE_BUILD_TYPE=AddressSanitizer
+ set(CMAKE_C_FLAGS_ADDRESSSANITIZER "-g -O1 -fsanitize=address -fno-omit-frame-pointer"
+ CACHE STRING "Flags used by the C compiler during ADDRESSSANITIZER builds.")
+ set(CMAKE_CXX_FLAGS_ADDRESSSANITIZER "-g -O1 -fsanitize=address -fno-omit-frame-pointer"
+ CACHE STRING "Flags used by the CXX compiler during ADDRESSSANITIZER builds.")
+ set(CMAKE_SHARED_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address"
+ CACHE STRING "Flags used by the linker during the creation of shared libraries during ADDRESSSANITIZER builds.")
+ set(CMAKE_MODULE_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address"
+ CACHE STRING "Flags used by the linker during the creation of shared libraries during ADDRESSSANITIZER builds.")
+ set(CMAKE_EXEC_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address"
+ CACHE STRING "Flags used by the linker during ADDRESSSANITIZER builds.")
+
+ # Activate with: -DCMAKE_BUILD_TYPE=UndefinedSanitizer
+ set(CMAKE_C_FLAGS_UNDEFINEDSANITIZER "-g -O1 -fsanitize=undefined -fsanitize=null -fsanitize=alignment -fno-sanitize-recover"
+ CACHE STRING "Flags used by the C compiler during UNDEFINEDSANITIZER builds.")
+ set(CMAKE_CXX_FLAGS_UNDEFINEDSANITIZER "-g -O1 -fsanitize=undefined -fsanitize=null -fsanitize=alignment -fno-sanitize-recover"
+ CACHE STRING "Flags used by the CXX compiler during UNDEFINEDSANITIZER builds.")
+ set(CMAKE_SHARED_LINKER_FLAGS_UNDEFINEDSANITIZER "-fsanitize=undefined"
+ CACHE STRING "Flags used by the linker during the creation of shared libraries during UNDEFINEDSANITIZER builds.")
+ set(CMAKE_MODULE_LINKER_FLAGS_UNDEFINEDSANITIZER "-fsanitize=undefined"
+ CACHE STRING "Flags used by the linker during the creation of shared libraries during UNDEFINEDSANITIZER builds.")
+ set(CMAKE_EXEC_LINKER_FLAGS_UNDEFINEDSANITIZER "-fsanitize=undefined"
+ CACHE STRING "Flags used by the linker during UNDEFINEDSANITIZER builds.")
+endif()
--- /dev/null
+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 ()
--- /dev/null
+# 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")
--- /dev/null
+# - 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)
--- /dev/null
+include(CMakeForceCompiler)
+
+set(TOOLCHAIN_PREFIX mips-linux-gnu)
+
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR mips)
+
+# This is the location of the mips toolchain
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+
+# This is the file system root of the target
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
+
+# Search for programs in the build host directories
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+
+# For libraries and headers in the target directories
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
--- /dev/null
+/* Name of package */
+#cmakedefine PACKAGE "${PROJECT_NAME}"
+
+/* Version number of package */
+#cmakedefine VERSION "${PROJECT_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_PRCTL_H 1
+#cmakedefine HAVE_SYS_TIME_H 1
+#cmakedefine HAVE_SYS_RESOURCE_H 1
+
+/*************************** FUNCTIONS ***************************/
+
+#cmakedefine HAVE_PRCTL 1
+#cmakedefine HAVE_SETRLIMIT 1
+#cmakedefine HAVE_CHROOT 1
+#cmakedefine HAVE_PLEDGE 1
+
+/**************************** OPTIONS ****************************/
+
+#cmakedefine HAVE_CONSTRUCTOR_ATTRIBUTE 1
+#cmakedefine HAVE_DESTRUCTOR_ATTRIBUTE 1
+#cmakedefine HAVE_FALLTHROUGH_ATTRIBUTE 1
+#cmakedefine HAVE_ADDRESS_SANITIZER_ATTRIBUTE 1
+#cmakedefine HAVE_FUNCTION_ATTRIBUTE_FORMAT 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
--- /dev/null
+install(FILES
+ socket_wrapper.1
+ DESTINATION
+ ${MAN_INSTALL_DIR}/man1)
--- /dev/null
+The manpage is written with asciidoc. To generate the manpage use:
+
+a2x --doctype manpage --format manpage doc/priv_wrapper.1.txt
--- /dev/null
+'\" t
+.\" Title: priv_wrapper
+.\" Author: Samba Team
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\" Date: 2018-10-26
+.\" Manual: \ \&
+.\" Source: \ \&
+.\" Language: English
+.\"
+.TH "PRIV_WRAPPER" "1" "2018\-10\-26" "\ \&" "\ \&"
+.\" -----------------------------------------------------------------
+.\" * 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"
+priv_wrapper \- A library to disable resource limits and other privilege dropping\&.
+.SH "SYNOPSIS"
+.sp
+LD_PRELOAD=libpriv_wrapper\&.so PRIV_WRAPPER=1 PRIV_WRAPPER_CHROOT_DISABLE=1
+.SH "DESCRIPTION"
+.sp
+priv_wrapper aims to help running processes which are dropping privileges or are restricting resources in test environments\&.
+.SH "ENVIRONMENT VARIABLES"
+.PP
+\fBPRIV_WRAPPER\fR
+.RS 4
+This variable activates priv_wrapper when set to
+\fI1\fR\&.
+.RE
+.PP
+\fBPRIV_WRAPPER_CHROOT_DISABLE\fR
+.RS 4
+If this is set to
+\fI1\fR
+then chrooting will be disabled\&.
+.RE
+.PP
+\fBPRIV_WRAPPER_PRCTL_DISABLE\fR
+.RS 4
+prctl calls can be disabled using this environment vairable\&. You can either disable all calls using PRIV_WRAPPER_PRCTL_DISABLE=ALL or special options using e\&.g\&. PRIV_WRAPPER_PRCTL_DISABLE=PR_SET_SECCOMP|PR_SET_NO_NEW_PRIVS
+.RE
+.PP
+\fBPRIV_WRAPPER_SETRLIMIT_DISABLE\fR
+.RS 4
+Either all resouce limits can be disabled using PRIV_WRAPPER_SETRLIMIT_DISABLE=ALL or you can pick specific resources using:
+.RE
+.sp
+PRIV_WRAPPER_SETRLIMIT_DISABLE=RLIMIT_STACK|RLIMIT_CORE
+.PP
+\fBPRIV_WRAPPER_DEBUGLEVEL\fR
+.RS 4
+If you need to see what is going on in priv_wrapper itself or try to find a bug, you can enable logging support in priv_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
+TODO
+.fi
+.if n \{\
+.RE
+.\}
+.SH "AUTHOR"
+.PP
+\fBSamba Team\fR
+.RS 4
+Author.
+.RE
--- /dev/null
+priv_wrapper(1)
+=================
+:revdate: 2018-10-26
+:author: Samba Team
+
+NAME
+----
+
+priv_wrapper - A library to disable resource limits and other privilege dropping.
+
+SYNOPSIS
+--------
+
+LD_PRELOAD=libpriv_wrapper.so PRIV_WRAPPER=1 PRIV_WRAPPER_CHROOT_DISABLE=1
+
+DESCRIPTION
+-----------
+
+priv_wrapper aims to help running processes which are dropping privileges or are
+restricting resources in test environments.
+
+ENVIRONMENT VARIABLES
+---------------------
+
+*PRIV_WRAPPER*::
+
+This variable activates priv_wrapper when set to '1'.
+
+*PRIV_WRAPPER_CHROOT_DISABLE*::
+
+If this is set to '1' then chrooting will be disabled.
+
+*PRIV_WRAPPER_PRCTL_DISABLE*::
+
+prctl calls can be disabled using this environment vairable. You can either disable all
+calls using PRIV_WRAPPER_PRCTL_DISABLE=ALL or special options using e.g.
+PRIV_WRAPPER_PRCTL_DISABLE=PR_SET_SECCOMP|PR_SET_NO_NEW_PRIVS
+
+*PRIV_WRAPPER_SETRLIMIT_DISABLE*::
+
+Either all resouce limits can be disabled using PRIV_WRAPPER_SETRLIMIT_DISABLE=ALL or
+you can pick specific resources using:
+
+PRIV_WRAPPER_SETRLIMIT_DISABLE=RLIMIT_STACK|RLIMIT_CORE
+
+*PRIV_WRAPPER_DEBUGLEVEL*::
+
+If you need to see what is going on in priv_wrapper itself or try to find a
+bug, you can enable logging support in priv_wrapper if you built it with
+debug symbols.
+
+- 0 = ERROR
+- 1 = WARNING
+- 2 = DEBUG
+- 3 = TRACE
+
+EXAMPLE
+-------
+
+ TODO
--- /dev/null
+set(PACKAGE_VERSION @PROJECT_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()
--- /dev/null
+set(PRIV_WRAPPER_LIBRARY @LIB_INSTALL_DIR@/@PRIV_WRAPPER_LIB@)
--- /dev/null
+Name: @PROJECT_NAME@
+Description: The socket_wrapper library
+Version: @PROJECT_VERSION@
+Libs: @LIB_INSTALL_DIR@/@PRIV_WRAPPER_LIB@
--- /dev/null
+project(libpriv_wrapper C)
+
+add_library(priv_wrapper SHARED priv_wrapper.c)
+target_include_directories(priv_wrapper
+ PRIVATE
+ ${CMAKE_BINARY_DIR})
+target_compile_options(priv_wrapper
+ PRIVATE
+ ${DEFAULT_C_COMPILE_FLAGS}
+ -D_GNU_SOURCE)
+target_link_libraries(priv_wrapper ${SWRAP_REQUIRED_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
+
+install(
+ TARGETS
+ priv_wrapper
+ RUNTIME DESTINATION ${BIN_INSTALL_DIR}
+ LIBRARY DESTINATION ${LIB_INSTALL_DIR}
+ ARCHIVE DESTINATION ${LIB_INSTALL_DIR}
+)
+
+set_target_properties(
+ priv_wrapper
+ PROPERTIES
+ VERSION
+ ${LIBRARY_VERSION}
+ SOVERSION
+ ${LIBRARY_SOVERSION}
+)
+
+set(PRIV_WRAPPER_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_SHARED_LIBRARY_PREFIX}priv_wrapper${CMAKE_SHARED_LIBRARY_SUFFIX}" PARENT_SCOPE)
--- /dev/null
+/*
+ * Copyright (c) 2018 Andreas Schneider <asn@samba.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+
+enum privwrap_dbglvl_e {
+ PRIVWRAP_LOG_ERROR = 0,
+ PRIVWRAP_LOG_WARN,
+ PRIVWRAP_LOG_DEBUG,
+ PRIVWRAP_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_CONSTRUCTOR_ATTRIBUTE
+#define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
+#else
+#define CONSTRUCTOR_ATTRIBUTE
+#endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
+
+#ifdef HAVE_DESTRUCTOR_ATTRIBUTE
+#define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
+#else
+#define DESTRUCTOR_ATTRIBUTE
+#endif
+
+#ifndef FALL_THROUGH
+# ifdef HAVE_FALLTHROUGH_ATTRIBUTE
+# define FALL_THROUGH __attribute__ ((fallthrough))
+# else /* HAVE_FALLTHROUGH_ATTRIBUTE */
+# define FALL_THROUGH ((void)0)
+# endif /* HAVE_FALLTHROUGH_ATTRIBUTE */
+#endif /* FALL_THROUGH */
+
+#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE
+#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address))
+#else
+#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE
+#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 SAFE_FREE
+#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); (x)=NULL;} } 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
+
+#define UNUSED(x) (void)(x)
+
+bool priv_wrapper_enabled(void);
+
+void privwrap_constructor(void) CONSTRUCTOR_ATTRIBUTE;
+void privwrap_destructor(void) DESTRUCTOR_ATTRIBUTE;
+
+static void privwrap_log(enum privwrap_dbglvl_e dbglvl, const char *func, const char *format, ...) PRINTF_ATTRIBUTE(3, 4);
+# define PRIVWRAP_LOG(dbglvl, ...) privwrap_log((dbglvl), __func__, __VA_ARGS__)
+
+static void privwrap_log(enum privwrap_dbglvl_e dbglvl,
+ const char *func,
+ const char *format, ...)
+{
+ char buffer[1024];
+ va_list va;
+ const char *d;
+ unsigned int lvl = 0;
+ const char *prefix = "PRIVWRAP";
+
+ d = getenv("PRIV_WRAPPER_DEBUGLEVEL");
+ if (d != NULL) {
+ lvl = atoi(d);
+ }
+
+ if (lvl < dbglvl) {
+ return;
+ }
+
+ va_start(va, format);
+ vsnprintf(buffer, sizeof(buffer), format, va);
+ va_end(va);
+
+ switch (dbglvl) {
+ case PRIVWRAP_LOG_ERROR:
+ prefix = "PRIVWRAP_ERROR";
+ break;
+ case PRIVWRAP_LOG_WARN:
+ prefix = "PRIVWRAP_WARN";
+ break;
+ case PRIVWRAP_LOG_DEBUG:
+ prefix = "PRIVWRAP_DEBUG";
+ break;
+ case PRIVWRAP_LOG_TRACE:
+ prefix = "PRIVWRAP_TRACE";
+ break;
+ }
+
+ fprintf(stderr,
+ "%s(%d) - %s: %s\n",
+ prefix, (int)getpid(), func, buffer);
+}
+
+/*********************************************************
+ * PRIVWRAP LOADING LIBC FUNCTIONS
+ *********************************************************/
+
+#include <dlfcn.h>
+
+typedef int (*__libc_chroot)(const char *path);
+#ifdef HAVE_PRCTL
+typedef int (*__libc_prctl)(int option,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4,
+ unsigned long arg5);
+#endif
+#ifdef HAVE_PLEDGE
+typedef int (*__libc_pledge)(const char *promises,
+ const char *paths[]);
+#endif
+#ifdef HAVE_SETRLIMIT
+typedef int (*__libc_setrlimit)(int resource,
+ const struct rlimit *rlp);
+#endif
+
+#define PRIVWRAP_SYMBOL_ENTRY(i) \
+ union { \
+ __libc_##i f; \
+ void *obj; \
+ } _libc_##i
+
+struct privwrap_libc_symbols {
+#ifdef HAVE_PRCTL
+ PRIVWRAP_SYMBOL_ENTRY(prctl);
+#endif
+#ifdef HAVE_PRCTL
+ PRIVWRAP_SYMBOL_ENTRY(setrlimit);
+#endif
+ PRIVWRAP_SYMBOL_ENTRY(chroot);
+};
+
+struct privwrap {
+ bool enabled;
+ struct {
+ void *handle;
+ void *socket_handle;
+ struct privwrap_libc_symbols symbols;
+ } libc;
+};
+
+static struct privwrap privwrap;
+
+#define LIBC_NAME "libc.so"
+
+enum privwrap_lib {
+ PRIVWRAP_LIBC,
+};
+
+static const char *privwrap_str_lib(enum privwrap_lib lib)
+{
+ switch (lib) {
+ case PRIVWRAP_LIBC:
+ return "libc";
+ }
+
+ /* Compiler would warn us about unhandled enum value if we get here */
+ return "unknown";
+}
+
+static void *privwrap_load_lib_handle(enum privwrap_lib lib)
+{
+ int flags = RTLD_LAZY;
+ void *handle = NULL;
+ int i;
+
+#ifdef RTLD_DEEPBIND
+ const char *env = getenv("LD_PRELOAD");
+
+ /* Don't do a deepbind if we run with libasan */
+ if (env != NULL && strlen(env) < 1024) {
+ const char *p = strstr(env, "libasan.so");
+ if (p == NULL) {
+ flags |= RTLD_DEEPBIND;
+ }
+ }
+#endif
+
+ switch (lib) {
+ case PRIVWRAP_LIBC:
+ handle = privwrap.libc.handle;
+#ifdef LIBC_SO
+ if (handle == NULL) {
+ handle = dlopen(LIBC_SO, flags);
+
+ privwrap.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;
+ }
+ }
+
+ privwrap.libc.handle = handle;
+ }
+ break;
+ }
+
+ if (handle == NULL) {
+#ifdef RTLD_NEXT
+ handle = privwrap.libc.handle = privwrap.libc.socket_handle = RTLD_NEXT;
+#else
+ PRIVWRAP_LOG(PRIVWRAP_LOG_ERROR,
+ "Failed to dlopen library: %s\n",
+ dlerror());
+ exit(-1);
+#endif
+ }
+
+ return handle;
+}
+
+static void *_privwrap_bind_symbol(enum privwrap_lib lib, const char *fn_name)
+{
+ void *handle;
+ void *func;
+
+ handle = privwrap_load_lib_handle(lib);
+
+ func = dlsym(handle, fn_name);
+ if (func == NULL) {
+ PRIVWRAP_LOG(PRIVWRAP_LOG_ERROR,
+ "Failed to find %s: %s\n",
+ fn_name,
+ dlerror());
+ exit(-1);
+ }
+
+ PRIVWRAP_LOG(PRIVWRAP_LOG_TRACE,
+ "Loaded %s from %s",
+ fn_name,
+ privwrap_str_lib(lib));
+
+ return func;
+}
+
+/*
+ * These macros have a thread race condition on purpose!
+ *
+ * This is an optimization to avoid locking each time we check if the symbol is
+ * bound.
+ */
+#define privwrap_bind_symbol_libc(sym_name) \
+ if (privwrap.libc.symbols._libc_##sym_name.obj == NULL) { \
+ privwrap.libc.symbols._libc_##sym_name.obj = \
+ _privwrap_bind_symbol(PRIVWRAP_LIBC, #sym_name); \
+ }
+
+/****************************************************************************
+ * 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.
+ *
+ ****************************************************************************/
+
+static int libc_chroot(const char *path)
+{
+ privwrap_bind_symbol_libc(chroot);
+
+ return privwrap.libc.symbols._libc_chroot.f(path);
+}
+
+#ifdef HAVE_PRCTL
+static int libc_vprctl(int option,
+ va_list ap)
+{
+ unsigned long arg2;
+ unsigned long arg3;
+ unsigned long arg4;
+ unsigned long arg5;
+
+ privwrap_bind_symbol_libc(prctl);
+
+ arg2 = va_arg(ap, unsigned long);
+ arg3 = va_arg(ap, unsigned long);
+ arg4 = va_arg(ap, unsigned long);
+ arg5 = va_arg(ap, unsigned long);
+
+ return privwrap.libc.symbols._libc_prctl.f(option, arg2, arg3, arg4, arg5);
+}
+#endif /* HAVE_PRCTL */
+
+#ifdef HAVE_SETRLIMIT
+static int libc_setrlimit(int resource,
+ const struct rlimit *rlp)
+{
+ privwrap_bind_symbol_libc(setrlimit);
+
+ return privwrap.libc.symbols._libc_setrlimit.f(resource, rlp);
+}
+#endif /* HAVE_SETRLIMIT */
+
+/*********************************************************
+ * PRIVWRAP HELPER FUNCTIONS
+ *********************************************************/
+
+bool priv_wrapper_enabled(void)
+{
+ const char *env;
+
+ privwrap.enabled = false;
+
+ env = getenv("PRIV_WRAPPER");
+ if (env != NULL && env[0] == '1') {
+ privwrap.enabled = true;
+ }
+
+ return privwrap.enabled;
+}
+
+/****************************
+ * CHROOT
+ ***************************/
+
+static int privwrap_chroot(const char *path)
+{
+ bool privwrap_on = priv_wrapper_enabled();
+ const char *env = getenv("PRIV_WRAPPER_CHROOT_DISABLE");
+
+ if (privwrap_on && env != NULL && env[0] == '1') {
+ return 0;
+ }
+
+ return libc_chroot(path);
+}
+
+int chroot(const char *path)
+{
+ return privwrap_chroot(path);
+}
+
+/* TODO: PLEDGE */
+
+/****************************
+ * PRCTL
+ ***************************/
+
+#ifdef HAVE_PRCTL
+static bool privwrap_prctl_disabled(const char *option)
+{
+ const char *env = getenv("PRIV_WRAPPER_PRCTL_DISABLE");
+ const char *p;
+ int cmp;
+
+ if (env == NULL || strlen(env) == 0) {
+ return false;
+ }
+
+ cmp = strcasecmp(env, "ALL");
+ if (cmp == 0) {
+ return true;
+ }
+
+ p = strstr(env, option);
+ if (p == NULL) {
+ return false;
+ }
+
+ return true;
+}
+
+static int privwrap_vprctl(int option, va_list va)
+{
+ bool privwrap_on = priv_wrapper_enabled();
+ bool option_disabled = false;
+ va_list ap;
+ int rc = 0;
+
+ if (!privwrap_on) {
+ return libc_vprctl(option, va);
+ }
+
+ va_copy(ap, va);
+
+ /* PRIV_WRAPPER_PRCTL_DISABLE=PR_SET_SECCOMP|PR_SET_NO_NEW_PRIVS */
+ switch(option) {
+#ifdef PR_SET_SECCOMP
+ case PR_SET_SECCOMP:
+ option_disabled = privwrap_prctl_disabled("PR_SET_SECCOMP");
+ break;
+#endif
+#ifdef PR_SET_NO_NEW_PRIVS
+ case PR_SET_NO_NEW_PRIVS:
+ option_disabled = privwrap_prctl_disabled("PR_SET_NO_NEW_PRIVS");
+ break;
+#endif
+#ifdef PR_SET_DUMPABLE
+ case PR_SET_DUMPABLE:
+ option_disabled = privwrap_prctl_disabled("PR_SET_DUMPABLE");
+ break;
+#endif
+ }
+
+ if (!option_disabled) {
+ rc = libc_vprctl(option, va);
+ }
+
+ va_end(ap);
+
+ return rc;
+}
+
+int prctl(int option, ...)
+{
+ va_list va;
+ int rc;
+
+ va_start(va, option);
+
+ rc = privwrap_vprctl(option, va);
+
+ va_end(va);
+
+ return rc;
+}
+#endif /* HAVE_PRCTL */
+
+#ifdef HAVE_SETRLIMIT
+static bool privwrap_setrlimit_disabled(const char *resource)
+{
+ const char *env = getenv("PRIV_WRAPPER_SETRLIMIT_DISABLE");
+ const char *p = NULL;
+ int cmp;
+
+ if (env == NULL || strlen(env) == 0) {
+ return false;
+ }
+
+ cmp = strcasecmp(env, "ALL");
+ if (cmp == 0) {
+ return true;
+ }
+
+ p = strstr(env, resource);
+ if (p == NULL) {
+ return false;
+ }
+
+ return true;
+}
+static int privwrap_setrlimit(int resource, const struct rlimit *rlp)
+{
+ bool setrlimit_disabled = false;
+ int rc = 0;
+
+ if (priv_wrapper_enabled()) {
+ return libc_setrlimit(resource, rlp);
+ }
+
+ switch(resource) {
+#ifdef RLIMIT_CPU
+ case RLIMIT_CPU:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_CPU");
+ break;
+#endif /* RLIMIT_CPU */
+#ifdef RLIMIT_FSIZE
+ case RLIMIT_FSIZE:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_FSIZE");
+ break;
+#endif /* RLIMIT_FSIZE */
+#ifdef RLIMIT_DATA
+ case RLIMIT_DATA:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_DATA");
+ break;
+#endif /* RLIMIT_DATA */
+#ifdef RLIMIT_STACK
+ case RLIMIT_STACK:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_STACK");
+ break;
+#endif /* RLIMIT_STACK */
+#ifdef RLIMIT_CORE
+ case RLIMIT_CORE:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_CORE");
+ break;
+#endif /* RLIMIT_CORE */
+#ifdef RLIMIT_RSS
+ case RLIMIT_RSS:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_RSS");
+ break;
+#endif /* RLIMIT_RSS */
+#ifdef RLIMIT_NOFILE
+ case RLIMIT_NOFILE:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_NOFILE");
+ break;
+#endif /* RLIMIT_NOFILE */
+#ifdef RLIMIT_AS
+ case RLIMIT_AS:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_AS");
+ break;
+#endif /* RLIMIT_AS */
+#ifdef RLIMIT_NPROC
+ case RLIMIT_NPROC:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_NPROC");
+ break;
+#endif /* RLIMIT_NPROC */
+#ifdef RLIMIT_MEMLOCK
+ case RLIMIT_MEMLOCK:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_MEMLOCK");
+ break;
+#endif /* RLIMIT_MEMLOCK */
+#ifdef RLIMIT_LOCKS
+ case RLIMIT_LOCKS:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_LOCKS");
+ break;
+#endif /* RLIMIT_LOCKS */
+#ifdef RLIMIT_SIGPENDING
+ case RLIMIT_SIGPENDING:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_SIGPENDING");
+ break;
+#endif /* RLIMIT_SIGPENDING */
+#ifdef RLIMIT_MSGQUEUE
+ case RLIMIT_MSGQUEUE:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_MSGQUEUE");
+ break;
+#endif /* RLIMIT_MSGQUEUE */
+#ifdef RLIMIT_NICE
+ case RLIMIT_NICE:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_NICE");
+ break;
+#endif /* RLIMIT_NICE */
+#ifdef RLIMIT_RTPRIO
+ case RLIMIT_RTPRIO:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_RTPRIO");
+ break;
+#endif /* RLIMIT_RTPRIO */
+#ifdef RLIMIT_RTTIME
+ case RLIMIT_RTTIME:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_RTTIME");
+ break;
+#endif /* RLIMIT_RTTIME */
+#ifdef RLIMIT_NLIMMITS
+ case RLIMIT_NLIMITS:
+ setrlimit_disabled = privwrap_setrlimit_disabled("RLIMIT_NLIMMITS");
+ break;
+#endif /* RLIMIT_NLIMMITS */
+ }
+
+ if (!setrlimit_disabled) {
+ rc = libc_setrlimit(resource, rlp);
+ }
+
+ return rc;
+}
+
+#ifdef _GNU_SOURCE
+int setrlimit(__rlimit_resource_t resource, const struct rlimit *rlp)
+#else
+int setrlimit(int resource, const struct rlimit *rlp)
+#endif
+{
+ return privwrap_setrlimit(resource, rlp);
+}
+#endif /* HAVE_SETRLIMIT */
+
+/****************************
+ * CONSTRUCTOR
+ ***************************/
+void privwrap_constructor(void)
+{
+ PRIVWRAP_LOG(PRIVWRAP_LOG_WARN, "priv_wrapper loaded");
+}
+
+/****************************
+ * DESTRUCTOR
+ ***************************/
+
+void privwrap_destructor(void)
+{
+ if (privwrap.libc.handle != NULL) {
+ dlclose(privwrap.libc.handle);
+ }
+
+ if (privwrap.libc.socket_handle) {
+ dlclose(privwrap.libc.socket_handle);
+ }
+}
git.samba.org / priv_wrapper.git / commitdiff