Merge pull request #1 from GBuella/master

Initial PR for review

.gitignore

@@ -0,0 +1,6 @@
+tags
+/.project
+/.cproject
+/.settings
+/build-deb
+/syscall_intercept-*.tar.gz

.travis.yml

@@ -0,0 +1,24 @@
+language: c
+
+env:
+  matrix:
+    - MAKE_PKG=1 OS=ubuntu OS_VER=16.04
+    - MAKE_PKG=1 OS=fedora OS_VER=25
+    - MAKE_PKG=0 OS=ubuntu OS_VER=16.04 COMPILER=clang
+    - MAKE_PKG=0 OS=fedora OS_VER=25    COMPILER=clang
+    - MAKE_PKG=0 OS=ubuntu OS_VER=16.04
+    - MAKE_PKG=0 OS=fedora OS_VER=25
+
+before_install:
+  - export HOST_WORKDIR=`pwd`
+  - cd utils/docker
+  - ./prepare-environment.sh
+  - ./pull-or-rebuild-image.sh
+  - if [[ -f push_image_to_repo_flag ]]; then PUSH_THE_IMAGE=1; fi
+  - rm -f push_image_to_repo_flag
+
+script:
+  - ./build.sh
+
+after_success:
+  - if [[ $PUSH_THE_IMAGE -eq 1 ]]; then images/push-image.sh $OS:$OS_VER; fi

CMakeLists.txt

@@ -0,0 +1,170 @@
+#
+# Copyright 2017, Intel Corporation
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#
+#     * 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.
+#
+#     * Neither the name of the copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT
+# OWNER 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.
+
+cmake_minimum_required(VERSION 2.8.7)
+project(syscall_intercept C CXX ASM)
+
+include(FindPerl)
+
+set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
+# Setting CMAKE_DISABLE_IN_SOURCE_BUILD to ON should
+# disallow in source builds, but in practice it doesn't seem
+# to disallow it. Check the paths as well:
+if(",${CMAKE_SOURCE_DIR}," STREQUAL ",${CMAKE_BINARY_DIR},")
+	message(FATAL_ERROR "In-source builds are not supported.")
+endif()
+
+option(DEVELOPER_MODE "enable developer checks" OFF)
+
+set(SYSCALL_INTERCEPT_VERSION_MAJOR 0)
+set(SYSCALL_INTERCEPT_VERSION_MINOR 1)
+set(SYSCALL_INTERCEPT_VERSION_PATCH 0)
+set(SYSCALL_INTERCEPT_VERSION
+	${SYSCALL_INTERCEPT_VERSION_MAJOR}.${SYSCALL_INTERCEPT_VERSION_MINOR}.${SYSCALL_INTERCEPT_VERSION_PATCH})
+
+include(GNUInstallDirs)
+include(cmake/toolchain_features.cmake)
+include(cmake/find_capstone.cmake)
+
+# main source files - intentionally excluding src/entry.c
+set(SOURCES_C
+	src/disasm_wrapper.c
+	src/intercept.c
+	src/intercept_desc.c
+	src/intercept_util.c
+	src/patcher.c
+	src/magic_syscalls.c)
+
+set(SOURCES_ASM
+	src/intercept_template.s
+	src/util.s)
+
+
+include_directories(include)
+
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+# Main object files of the library, the entry point in entry.c
+# is only built into the final libraries. This way, testing code
+# can use the internal interface of the libraries (linking
+# with syscall_intercept_base instead of the actual lib ), without
+# the library trying to hotpatch libc every time.
+add_library(syscall_intercept_base_c STATIC ${SOURCES_C})
+add_library(syscall_intercept_base_asm STATIC ${SOURCES_ASM})
+
+if(HAS_NOUNUSEDARG)
+	target_compile_options(syscall_intercept_base_asm BEFORE
+		PRIVATE "-Wno-unused-command-line-argument")
+endif()
+
+set_property(TARGET syscall_intercept_base_c
+	APPEND PROPERTY COMPILE_FLAGS ${capstone_CFLAGS})
+
+target_link_libraries(syscall_intercept_base_c
+	${CMAKE_DL_LIBS} ${capstone_LIBRARIES})
+
+add_library(syscall_intercept_shared SHARED src/entry.c)
+target_link_libraries(syscall_intercept_shared
+	syscall_intercept_base_c syscall_intercept_base_asm)
+add_library(syscall_intercept_static STATIC src/entry.c)
+target_link_libraries(syscall_intercept_static
+	syscall_intercept_base_c syscall_intercept_base_asm)
+
+set_target_properties(syscall_intercept_shared
+	PROPERTIES VERSION ${SYSCALL_INTERCEPT_VERSION}
+		   SOVERSION ${SYSCALL_INTERCEPT_VERSION_MAJOR})
+
+add_executable(cpp_test src/cpp_compile_test.cc src/cpp_compile_mock.c)
+
+if(CMAKE_OBJCOPY)
+foreach(target syscall_intercept_shared syscall_intercept_static)
+	add_custom_command(TARGET ${target}
+	POST_BUILD COMMAND ${CMAKE_OBJCOPY}
+	--localize-hidden
+	-G intercept_hook_point
+	-G syscall_no_intercept
+	-G libc_hook_in_process_allowed
+	$<TARGET_FILE:${target}>)
+endforeach()
+endif()
+
+set_target_properties(syscall_intercept_shared syscall_intercept_static
+	PROPERTIES
+	PUBLIC_HEADER "include/libsyscall_intercept_hook_point.h"
+	OUTPUT_NAME syscall_intercept)
+
+add_dependencies(syscall_intercept_base_c cpp_test)
+
+if(${PERL_FOUND} AND DEVELOPER_MODE)
+	add_custom_target(cstyle
+		COMMAND ${PERL_EXECUTABLE} ${PROJECT_SOURCE_DIR}/utils/cstyle.pl
+		-pP ${PROJECT_SOURCE_DIR}/src/*.[ch]
+		${PROJECT_SOURCE_DIR}/include/*.h
+		${PROJECT_SOURCE_DIR}/test/*.c
+		${PROJECT_SOURCE_DIR}/examples/*.c)
+
+	add_custom_target(check_whitespace
+		COMMAND ${PERL_EXECUTABLE} ${PROJECT_SOURCE_DIR}/utils/check_whitespace.pl
+		-r ${PROJECT_SOURCE_DIR}/src)
+
+	add_dependencies(syscall_intercept_base_c cstyle check_whitespace)
+endif()
+
+add_executable(check_license_executable utils/check_license/check-license.c)
+
+add_custom_target(check-license
+	COMMAND
+	${PROJECT_SOURCE_DIR}/utils/check_license/check-headers.sh
+	${PROJECT_SOURCE_DIR}
+	$<TARGET_FILE:check_license_executable>
+	${PROJECT_SOURCE_DIR}/LICENSE -a)
+
+add_dependencies(check-license check_license_executable)
+configure_file(libsyscall_intercept.pc.in libsyscall_intercept.pc)
+
+install(TARGETS syscall_intercept_shared syscall_intercept_static
+	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+install(FILES ${CMAKE_BINARY_DIR}/libsyscall_intercept.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+
+configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
+	"${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake"
+	IMMEDIATE @ONLY)
+add_custom_target(uninstall
+	"${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake") 
+
+enable_testing()
+
+add_subdirectory(examples)
+add_subdirectory(test)
+add_subdirectory(doc)

LICENSE

@@ -0,0 +1,36 @@
+Copyright 2016-2017, Intel Corporation
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * 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.
+
+    * Neither the name of the copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT
+OWNER 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.
+
+
+Everything in this source tree is covered by the previous license
+with the following exceptions:
+
+* utils/cstyle (used only during development) licensed under CDDL.
+* cmake/cmake_uninstall.cmake.in licensed under Creative Commons.