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#
# Copyright (C) 2022 The Falco Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../../common")
option(USE_BUNDLED_DEPS "Enable bundled dependencies instead of using the system ones" ON)
include(ExternalProject)
if(WIN32 OR NOT MINIMAL_BUILD)
include(zlib)
endif()
add_definitions(-DPLATFORM_NAME="${CMAKE_SYSTEM_NAME}")
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
set(KBUILD_FLAGS "${FALCOSECURITY_LIBS_DEBUG_FLAGS}")
endif()
if(NOT DEFINED DRIVER_VERSION)
set(DRIVER_VERSION "${FALCOSECURITY_LIBS_VERSION}")
endif()
if(NOT DEFINED DRIVER_NAME)
set(DRIVER_NAME "scap")
endif()
if(NOT DEFINED DRIVER_DEVICE_NAME)
set(DRIVER_DEVICE_NAME "${DRIVER_NAME}")
endif()
string(REPLACE "-" "_" SCAP_KERNEL_MODULE_NAME "${DRIVER_NAME}")
add_definitions(-DSCAP_KERNEL_MODULE_NAME="${SCAP_KERNEL_MODULE_NAME}")
if(NOT DEFINED SCAP_PROBE_BPF_FILEPATH)
# note that the home folder is prepended by scap at runtime
set(SCAP_PROBE_BPF_FILEPATH ".${DRIVER_NAME}/${DRIVER_NAME}-bpf.o")
endif()
add_definitions(-DSCAP_PROBE_BPF_FILEPATH="${SCAP_PROBE_BPF_FILEPATH}")
endif()
if(NOT DEFINED SCAP_BPF_PROBE_ENV_VAR_NAME)
set(SCAP_BPF_PROBE_ENV_VAR_NAME "BPF_PROBE")
endif()
add_definitions(-DSCAP_BPF_PROBE_ENV_VAR_NAME="${SCAP_BPF_PROBE_ENV_VAR_NAME}")
if(NOT DEFINED SCAP_HOST_ROOT_ENV_VAR_NAME)
set(SCAP_HOST_ROOT_ENV_VAR_NAME "HOST_ROOT")
endif()
add_definitions(-DSCAP_HOST_ROOT_ENV_VAR_NAME="${SCAP_HOST_ROOT_ENV_VAR_NAME}")
if(CYGWIN)
include_directories("${WIN_HAL_INCLUDE}")
endif()
list(APPEND targetfiles
scap.c
scap_event.c
scap_fds.c
scap_iflist.c
scap_savefile.c
scap_procs.c
scap_userlist.c
syscall_info_table.c
../../driver/dynamic_params_table.c
../../driver/event_table.c
../../driver/flags_table.c)
if(NOT APPLE)
list(APPEND targetfiles
scap_udig.c)
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
list(APPEND targetfiles
scap_bpf.c
../../driver/syscall_table.c
../../driver/fillers_table.c)
include_directories(${PROJECT_BINARY_DIR}/driver/src)
endif()
if(CYGWIN OR WIN32)
list(APPEND targetfiles
windows_hal.c)
endif()
add_library(scap SHARED
${targetfiles})
set_target_properties(scap PROPERTIES
VERSION ${FALCOSECURITY_LIBS_VERSION}
SOVERSION ${FALCOSECURITY_LIBS_VERSION}
)
install (TARGETS scap LIBRARY)
if(USE_BUNDLED_ZLIB AND NOT MINIMAL_BUILD)
add_dependencies(scap zlib)
endif()
if (CMAKE_SYSTEM_NAME MATCHES "SunOS")
target_link_libraries(scap
socket nsl)
elseif (CMAKE_SYSTEM_NAME MATCHES "Linux")
target_link_libraries(scap
elf
rt)
elseif (WIN32)
target_link_libraries(scap
Ws2_32.lib)
elseif (CYGWIN)
target_link_libraries(scap
/lib/w32api/libpsapi.a
${WIN_HAL_LIB}/dragent_win_hal.lib)
endif()
if(NOT MINIMAL_BUILD)
target_link_libraries(scap
"${ZLIB_LIB}")
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
add_subdirectory(../../driver ${PROJECT_BINARY_DIR}/driver)
option(BUILD_LIBSCAP_EXAMPLES "Build libscap examples" ON)
if (BUILD_LIBSCAP_EXAMPLES)
add_subdirectory(examples/01-open)
add_subdirectory(examples/02-validatebuffer)
endif()
include(FindMakedev)
endif()
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