1*ec63e07aSXin Li# Copyright 2019 Google LLC 2*ec63e07aSXin Li# 3*ec63e07aSXin Li# Licensed under the Apache License, Version 2.0 (the "License"); 4*ec63e07aSXin Li# you may not use this file except in compliance with the License. 5*ec63e07aSXin Li# You may obtain a copy of the License at 6*ec63e07aSXin Li# 7*ec63e07aSXin Li# https://www.apache.org/licenses/LICENSE-2.0 8*ec63e07aSXin Li# 9*ec63e07aSXin Li# Unless required by applicable law or agreed to in writing, software 10*ec63e07aSXin Li# distributed under the License is distributed on an "AS IS" BASIS, 11*ec63e07aSXin Li# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*ec63e07aSXin Li# See the License for the specific language governing permissions and 13*ec63e07aSXin Li# limitations under the License. 14*ec63e07aSXin Li 15*ec63e07aSXin LiFetchContent_Declare(libcap 16*ec63e07aSXin Li URL https://www.kernel.org/pub/linux/libs/security/linux-privs/libcap2/libcap-2.27.tar.gz 17*ec63e07aSXin Li URL_HASH SHA256=260b549c154b07c3cdc16b9ccc93c04633c39f4fb6a4a3b8d1fa5b8a9c3f5fe8 18*ec63e07aSXin Li) 19*ec63e07aSXin LiFetchContent_MakeAvailable(libcap) 20*ec63e07aSXin Li 21*ec63e07aSXin Liset(libcap_INCLUDE_DIR "${libcap_SOURCE_DIR}/libcap/include") 22*ec63e07aSXin Li 23*ec63e07aSXin Liadd_custom_command(OUTPUT ${libcap_SOURCE_DIR}/libcap/cap_names.list.h 24*ec63e07aSXin Li VERBATIM 25*ec63e07aSXin Li COMMAND # Use the same logic as libcap/Makefile 26*ec63e07aSXin Li sed -ne [=[/^#define[ \\t]CAP[_A-Z]\+[ \\t]\+[0-9]\+/{s/^#define \([^ \\t]*\)[ \\t]*\([^ \\t]*\)/\{\"\1\",\2\},/p;}]=] 27*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/include/uapi/linux/capability.h | 28*ec63e07aSXin Li tr [:upper:] [:lower:] > ${libcap_SOURCE_DIR}/libcap/cap_names.list.h 29*ec63e07aSXin Li) 30*ec63e07aSXin Li 31*ec63e07aSXin Liif (CMAKE_CROSSCOMPILING AND BUILD_C_COMPILER) 32*ec63e07aSXin Li add_custom_command(OUTPUT ${libcap_SOURCE_DIR}/libcap/libcap_makenames 33*ec63e07aSXin Li VERBATIM 34*ec63e07aSXin Li # Use the same logic as libcap/Makefile 35*ec63e07aSXin Li COMMAND ${BUILD_C_COMPILER} ${BUILD_C_FLAGS} 36*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/_makenames.c 37*ec63e07aSXin Li -o ${libcap_SOURCE_DIR}/libcap/libcap_makenames 38*ec63e07aSXin Li DEPENDS ${libcap_SOURCE_DIR}/libcap/cap_names.list.h 39*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/_makenames.c 40*ec63e07aSXin Li ) 41*ec63e07aSXin Li 42*ec63e07aSXin Li add_custom_command(OUTPUT ${libcap_SOURCE_DIR}/libcap/cap_names.h 43*ec63e07aSXin Li COMMAND ${libcap_SOURCE_DIR}/libcap/libcap_makenames > 44*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_names.h 45*ec63e07aSXin Li DEPENDS ${libcap_SOURCE_DIR}/libcap/libcap_makenames 46*ec63e07aSXin Li ) 47*ec63e07aSXin Lielse() 48*ec63e07aSXin Li add_executable(libcap_makenames 49*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_names.list.h 50*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/_makenames.c 51*ec63e07aSXin Li ) 52*ec63e07aSXin Li 53*ec63e07aSXin Li target_include_directories(libcap_makenames PUBLIC 54*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap 55*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/include 56*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/include/uapi 57*ec63e07aSXin Li ) 58*ec63e07aSXin Li 59*ec63e07aSXin Li add_custom_command(OUTPUT ${libcap_SOURCE_DIR}/libcap/cap_names.h 60*ec63e07aSXin Li COMMAND libcap_makenames > ${libcap_SOURCE_DIR}/libcap/cap_names.h 61*ec63e07aSXin Li ) 62*ec63e07aSXin Liendif() 63*ec63e07aSXin Li 64*ec63e07aSXin Liadd_library(cap STATIC 65*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_alloc.c 66*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_extint.c 67*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_file.c 68*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_flag.c 69*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_names.h 70*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_proc.c 71*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/cap_text.c 72*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/include/uapi/linux/capability.h 73*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/libcap.h 74*ec63e07aSXin Li) 75*ec63e07aSXin Liadd_library(libcap::libcap ALIAS cap) 76*ec63e07aSXin Litarget_include_directories(cap PUBLIC 77*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap 78*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/include 79*ec63e07aSXin Li ${libcap_SOURCE_DIR}/libcap/include/uapi 80*ec63e07aSXin Li) 81*ec63e07aSXin Litarget_compile_options(cap PRIVATE 82*ec63e07aSXin Li -Wno-tautological-compare 83*ec63e07aSXin Li -Wno-unused-result 84*ec63e07aSXin Li) 85*ec63e07aSXin Litarget_compile_definitions(cap PRIVATE 86*ec63e07aSXin Li # Work around sys/xattr.h not declaring this 87*ec63e07aSXin Li -DXATTR_NAME_CAPS="\"security.capability\"" 88*ec63e07aSXin Li) 89*ec63e07aSXin Litarget_link_libraries(cap PRIVATE 90*ec63e07aSXin Li sapi::base 91*ec63e07aSXin Li) 92