cmake_minimum_required(VERSION 2.8.6)
#
# Apple doesn't build with an install_name starting with @rpath, and
# neither do we with autotools; don't do so with CMake, either, and
# suppress warnings about that.
#
if(POLICY CMP0042)
cmake_policy(SET CMP0042 OLD)
endif()
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules)
project(pcap)
#
# Try to enable as many C99 features as we can.
# At minimum, we want C++/C99-style // comments.
#
# Newer versions of compilers might default to supporting C99, but older
# versions may require a special flag.
#
# Prior to CMake 3.1, setting CMAKE_C_STANDARD will not have any effect,
# so, unless and until we require CMake 3.1 or later, we have to do it
# ourselves on pre-3.1 CMake, so we just do it ourselves on all versions
# of CMake.
#
# Note: with CMake 3.1 through 3.5, the only compilers for which CMake
# handles CMAKE_C_STANDARD are GCC and Clang. 3.6 adds support only
# for Intel C; 3.9 adds support for PGI C, Sun C, and IBM XL C, and
# 3.10 adds support for Cray C and IAR C, but no version of CMake has
# support for HP C. Therefore, even if we use CMAKE_C_STANDARD with
# compilers for which CMake supports it, we may still have to do it
# ourselves on other compilers.
#
# See the CMake documentation for the CMAKE_<LANG>_COMPILER_ID variables
# for a list of compiler IDs.
#
# We don't worry about MSVC; it doesn't have such a flag - either it
# doesn't support the C99 features we need at all, or it supports them
# regardless of the compiler flag.
#
# XXX - this just tests whether the option works and adds it if it does.
# We don't test whether it's necessary in order to get the C99 features
# that we use; if we ever have a user who tries to compile with a compiler
# that can't be made to support those features, we can add a test to make
# sure we actually *have* C99 support.
#
include(CheckCCompilerFlag)
macro(check_and_add_compiler_option _option)
message(STATUS "Checking C compiler flag ${_option}")
string(REPLACE "=" "-" _temp_option_variable ${_option})
string(REGEX REPLACE "^-" "" _option_variable ${_temp_option_variable})
check_c_compiler_flag("${_option}" ${_option_variable})
if(${${_option_variable}})
set(C_ADDITIONAL_FLAGS "${C_ADDITIONAL_FLAGS} ${_option}")
endif()
endmacro()
set(C_ADDITIONAL_FLAGS "")
if(CMAKE_C_COMPILER_ID MATCHES "GNU" OR
CMAKE_C_COMPILER_ID MATCHES "Clang")
check_and_add_compiler_option("-std=gnu99")
elseif(CMAKE_C_COMPILER_ID MATCHES "XL")
#
# We want support for extensions picked up for GNU C compatibility,
# so we use -qlanglvl=extc99.
#
check_and_add_compiler_option("-qlanglvl=extc99")
elseif(CMAKE_C_COMPILER_ID MATCHES "HP")
check_and_add_compiler_option("-AC99")
elseif(CMAKE_C_COMPILER_ID MATCHES "Sun")
check_and_add_compiler_option("-xc99")
elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
check_and_add_compiler_option("-c99")
endif()
#
# Build all runtimes in the top-level binary directory; that way,
# on Windows, the executables will be in the same directory as
# the DLLs, so the system will find pcap.dll when any of the
# executables are run.
#
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/run)
###################################################################
# Parameters
###################################################################
if(WIN32)
#
# On Windows, allow the library name to be overridden, for the
# benefit of projects that combine libpcap with their own
# kernel-mode code to support capturing.
#
set(LIBRARY_NAME pcap CACHE STRING "Library name")
else()
#
# On UN*X, it's always been libpcap.
#
set(LIBRARY_NAME pcap)
endif()
option(INET6 "Enable IPv6" ON)
if(WIN32)
option(USE_STATIC_RT "Use static Runtime" ON)
endif(WIN32)
option(BUILD_SHARED_LIBS "Build shared libraries" ON)
if(WIN32)
set(PACKET_DLL_DIR "" CACHE PATH "Path to directory with include and lib subdirectories for packet.dll")
endif(WIN32)
# To pacify those who hate the protochain instruction
option(NO_PROTOCHAIN "Disable protochain instruction" OFF)
#
# Start out with the capture mechanism type unspecified; the user
# can explicitly specify it and, if they don't, we'll pick an
# appropriate one.
#
set(PCAP_TYPE "" CACHE STRING "Packet capture type")
#
# Default to having remote capture support on Windows and, for now, to
# not having it on UN*X.
#
if(WIN32)
option(ENABLE_REMOTE "Enable remote capture" ON)
else()
option(ENABLE_REMOTE "Enable remote capture" OFF)
endif(WIN32)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
option(PCAP_SUPPORT_PACKET_RING "Enable Linux packet ring support" ON)
option(BUILD_WITH_LIBNL "Build with libnl" ON)
endif()
#
# Additional capture modules.
#
option(DISABLE_USB "Disable USB sniffing support" OFF)
option(DISABLE_BLUETOOTH "Disable Bluetooth sniffing support" OFF)
option(DISABLE_NETMAP "Disable netmap support" OFF)
#
# We don't support D-Bus sniffing on macOS; see
#
# https://bugs.freedesktop.org/show_bug.cgi?id=74029
#
if(APPLE)
option(DISABLE_DBUS "Disable D-Bus sniffing support" ON)
else(APPLE)
option(DISABLE_DBUS "Disable D-Bus sniffing support" OFF)
endif(APPLE)
option(DISABLE_RDMA "Disable RDMA sniffing support" OFF)
option(DISABLE_DAG "Disable Endace DAG card support" OFF)
option(DISABLE_SEPTEL "Disable Septel card support" OFF)
set(SEPTEL_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/../septel" CACHE PATH "Path to directory with include and lib subdirectories for Septel API")
option(DISABLE_SNF "Disable Myricom SNF support" OFF)
option(DISABLE_TC "Disable Riverbed TurboCap support" OFF)
#
# Debugging options.
#
option(BDEBUG "Build optimizer debugging code" OFF)
option(YYDEBUG "Build parser debugging code" OFF)
###################################################################
# Versioning
###################################################################
# Get, parse, format and set pcap's version string from [pcap_root]/VERSION
# for later use.
# Get MAJOR, MINOR, PATCH & SUFFIX
file(STRINGS ${pcap_SOURCE_DIR}/VERSION
PACKAGE_VERSION
LIMIT_COUNT 1 # Read only the first line
)
# Get "just" MAJOR
string(REGEX MATCH "^([0-9]+)" PACKAGE_VERSION_MAJOR "${PACKAGE_VERSION}")
# Get MAJOR, MINOR & PATCH
string(REGEX MATCH "^([0-9]+.)?([0-9]+.)?([0-9]+)" PACKAGE_VERSION_NOSUFFIX "${PACKAGE_VERSION}")
if(WIN32)
# Convert PCAP_VERSION_NOSUFFIX to Windows preferred version format
string(REPLACE "." "," PACKAGE_VERSION_PREDLL ${PACKAGE_VERSION_NOSUFFIX})
# Append NANO (used for Windows internal versioning) to PCAP_VERSION_PREDLL
# 0 means unused.
set(PACKAGE_VERSION_DLL ${PACKAGE_VERSION_PREDLL},0)
endif(WIN32)
set(PACKAGE_NAME "${LIBRARY_NAME}")
set(PACKAGE_STRING "${LIBRARY_NAME} ${PACKAGE_VERSION}")
######################################
# Project settings
######################################
add_definitions(-DHAVE_CONFIG_H)
include_directories(
${CMAKE_CURRENT_BINARY_DIR}
${pcap_SOURCE_DIR}
)
include(CheckFunctionExists)
include(CMakePushCheckState)
include(CheckSymbolExists)
if(WIN32)
if(IS_DIRECTORY ${CMAKE_HOME_DIRECTORY}/../../Common)
include_directories(${CMAKE_HOME_DIRECTORY}/../../Common)
endif(IS_DIRECTORY ${CMAKE_HOME_DIRECTORY}/../../Common)
find_package(Packet)
if(PACKET_FOUND)
set(HAVE_PACKET32 TRUE)
include_directories(${PACKET_INCLUDE_DIRS})
#
# Check whether we have the NPcap PacketIsLoopbackAdapter()
# function.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${PACKET_LIBRARIES})
check_function_exists(PacketIsLoopbackAdapter HAVE_PACKET_IS_LOOPBACK_ADAPTER)
cmake_pop_check_state()
endif(PACKET_FOUND)
message(STATUS "checking for Npcap's version.h")
check_symbol_exists(WINPCAP_PRODUCT_NAME "../../version.h" HAVE_VERSION_H)
if(HAVE_VERSION_H)
message(STATUS "HAVE version.h")
else(HAVE_VERSION_H)
message(STATUS "MISSING version.h")
endif(HAVE_VERSION_H)
endif(WIN32)
if(MSVC)
add_definitions(-D__STDC__)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif(MSVC)
if(USE_STATIC_RT)
message(STATUS "Use STATIC runtime")
if(MSVC)
foreach(RT_FLAG
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
string(REGEX REPLACE "/MD" "/MT" ${RT_FLAG} "${${RT_FLAG}}")
endforeach(RT_FLAG)
elseif(MINGW)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -static-libgcc")
endif()
else (USE_STATIC_RT)
message(STATUS "Use DYNAMIC runtime")
endif(USE_STATIC_RT)
###################################################################
# Detect available platform features
###################################################################
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckStructHasMember)
include(CheckTypeSize)
#
# Tests are a bit expensive with Visual Studio on Windows, so, on
# Windows, we skip tests for UN*X-only headers and functions.
#
#
# Header files.
#
check_include_file(inttypes.h HAVE_INTTYPES_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(unistd.h HAVE_UNISTD_H)
if(NOT HAVE_UNISTD_H)
add_definitions(-DYY_NO_UNISTD_H)
endif(NOT HAVE_UNISTD_H)
check_include_file(bitypes.h HAVE_SYS_BITYPES_H)
if(NOT WIN32)
check_include_file(sys/ioccom.h HAVE_SYS_IOCCOM_H)
check_include_file(sys/sockio.h HAVE_SYS_SOCKIO_H)
check_include_file(sys/select.h HAVE_SYS_SELECT_H)
endif(NOT WIN32)
check_include_file(limits.h HAVE_LIMITS_H)
if(NOT WIN32)
check_include_file(netpacket/packet.h HAVE_NETPACKET_PACKET_H)
check_include_files("sys/types.h;sys/socket.h;net/if.h;net/pfvar.h" HAVE_NET_PFVAR_H)
if(HAVE_NET_PFVAR_H)
#
# Check for various PF actions.
#
check_c_source_compiles(
"#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/pfvar.h>
int
main(void)
{
return PF_NAT+PF_NONAT+PF_BINAT+PF_NOBINAT+PF_RDR+PF_NORDR;
}
"
HAVE_PF_NAT_THROUGH_PF_NORDR)
endif(HAVE_NET_PFVAR_H)
check_include_file(netinet/if_ether.h HAVE_NETINET_IF_ETHER_H)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
check_include_file(linux/sockios.h HAVE_LINUX_SOCKIOS_H)
#
# linux/if_bonding.h requires sys/socket.h.
#
check_include_files("sys/socket.h;linux/if_bonding.h" HAVE_LINUX_IF_BONDING_H)
endif()
endif(NOT WIN32)
#
# Functions.
#
check_function_exists(strerror HAVE_STRERROR)
check_function_exists(strerror_r HAVE_STRERROR_R)
if(HAVE_STRERROR_R)
#
# We have strerror_r; if we define _GNU_SOURCE, is it a
# POSIX-compliant strerror_r() or a GNU strerror_r()?
#
check_c_source_compiles(
"#define _GNU_SOURCE
#include <string.h>
/* Define it GNU-style; that will cause an error if it's not GNU-style */
extern char *strerror_r(int, char *, size_t);
int
main(void)
{
return 0;
}
"
HAVE_GNU_STRERROR_R)
if(NOT HAVE_GNU_STRERROR_R)
set(HAVE_POSIX_STRERROR_R YES)
endif(NOT HAVE_GNU_STRERROR_R)
else(HAVE_STRERROR_R)
#
# We don't have strerror_r; do we have strerror_s?
#
check_function_exists(strerror_s HAVE_STRERROR_S)
endif(HAVE_STRERROR_R)
check_function_exists(strlcpy HAVE_STRLCPY)
check_function_exists(strlcat HAVE_STRLCAT)
check_function_exists(snprintf HAVE_SNPRINTF)
check_function_exists(vsnprintf HAVE_VSNPRINTF)
check_function_exists(asprintf HAVE_ASPRINTF)
check_function_exists(vasprintf HAVE_VASPRINTF)
check_function_exists(strtok_r HAVE_STRTOK_R)
if(NOT WIN32)
check_function_exists(vsyslog HAVE_VSYSLOG)
endif()
#
# These tests are for network applications that need socket functions
# and getaddrinfo()/getnameinfo()-ish functions. We now require
# getaddrinfo() and getnameinfo(). On UN*X systems, we also prefer
# versions of recvmsg() that conform to the Single UNIX Specification,
# so that we can check whether a datagram received with recvmsg() was
# truncated when received due to the buffer being too small.
#
# On Windows, getaddrinfo() is in the ws2_32 library.
# On most UN*X systems, they're available in the system library.
#
# Under Solaris, we need to link with libsocket and libnsl to get
# getaddrinfo() and getnameinfo() and, if we have libxnet, we need to
# link with libxnet before libsocket to get a version of recvmsg()
# that conforms to the Single UNIX Specification.
#
# We use getaddrinfo() because we want a portable thread-safe way
# of getting information for a host name or port; there exist _r
# versions of gethostbyname() and getservbyname() on some platforms,
# but not on all platforms.
#
# NOTE: if you hand check_library_exists as its last argument a variable
# that's been set, it skips the test, so we need different variables.
#
set(PCAP_LINK_LIBRARIES "")
include(CheckLibraryExists)
if(WIN32)
#
# We need winsock2.h and ws2tcpip.h.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ws2_32)
check_symbol_exists(getaddrinfo "winsock2.h;ws2tcpip.h" LIBWS2_32_HAS_GETADDRINFO)
cmake_pop_check_state()
if(LIBWS2_32_HAS_GETADDRINFO)
set(PCAP_LINK_LIBRARIES ws2_32 ${PCAP_LINK_LIBRARIES})
else(LIBWS2_32_HAS_GETADDRINFO)
message(FATAL_ERROR "getaddrinfo is required, but wasn't found")
endif(LIBWS2_32_HAS_GETADDRINFO)
else(WIN32)
#
# UN*X. First try the system libraries, then try the libraries
# for Solaris and possibly other systems that picked up the
# System V library split.
#
check_function_exists(getaddrinfo STDLIBS_HAVE_GETADDRINFO)
if(NOT STDLIBS_HAVE_GETADDRINFO)
#
# Not found in the standard system libraries.
# Try libsocket, which requires libnsl.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES nsl)
check_library_exists(socket getaddrinfo "" LIBSOCKET_HAS_GETADDRINFO)
cmake_pop_check_state()
if(LIBSOCKET_HAS_GETADDRINFO)
#
# OK, we found it in libsocket.
#
set(PCAP_LINK_LIBRARIES socket nsl ${PCAP_LINK_LIBRARIES})
else(LIBSOCKET_HAS_GETADDRINFO)
#
# We didn't find it.
#
message(FATAL_ERROR "getaddrinfo is required, but wasn't found")
endif(LIBSOCKET_HAS_GETADDRINFO)
#
# OK, do we have recvmsg() in libxnet?
# We also link with libsocket and libnsl.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES socket nsl)
check_library_exists(xnet recvmsg "" LIBXNET_HAS_RECVMSG)
cmake_pop_check_state()
if(LIBXNET_HAS_RECVMSG)
#
# Yes - link with it as well.
#
set(PCAP_LINK_LIBRARIES xnet ${PCAP_LINK_LIBRARIES})
endif(LIBXNET_HAS_RECVMSG)
endif(NOT STDLIBS_HAVE_GETADDRINFO)
# DLPI needs putmsg under HPUX so test for -lstr while we're at it
check_function_exists(putmsg STDLIBS_HAVE_PUTMSG)
if(NOT STDLIBS_HAVE_PUTMSG)
check_library_exists(str putmsg "" LIBSTR_HAS_PUTMSG)
if(LIBSTR_HAS_PUTMSG)
set(PCAP_LINK_LIBRARIES str ${PCAP_LINK_LIBRARIES})
endif(LIBSTR_HAS_PUTMSG)
endif(NOT STDLIBS_HAVE_PUTMSG)
endif(WIN32)
#
# Check for reentrant versions of getnetbyname_r(), as provided by
# Linux (glibc), Solaris/IRIX, and AIX (with three different APIs!).
# If we don't find one, we just use getnetbyname(), which uses
# thread-specific data on many platforms, but doesn't use it on
# NetBSD or OpenBSD, and may not use it on older versions of other
# platforms.
#
# Only do the check if we have a declaration of getnetbyname_r();
# without it, we can't check which API it has. (We assume that
# if there's a declaration, it has a prototype, so that the API
# can be checked.)
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LINK_LIBRARIES})
check_symbol_exists(getnetbyname_r netdb.h NETDB_H_DECLARES_GETNETBYNAME_R)
if(NETDB_H_DECLARES_GETNETBYNAME_R)
check_c_source_compiles(
"#include <netdb.h>
int
main(void)
{
struct netent netent_buf;
char buf[1024];
struct netent *resultp;
int h_errnoval;
return getnetbyname_r((const char *)0, &netent_buf, buf, sizeof buf, &resultp, &h_errnoval);
}
"
HAVE_LINUX_GETNETBYNAME_R)
if(NOT HAVE_LINUX_GETNETBYNAME_R)
check_c_source_compiles(
"#include <netdb.h>
int
main(void)
{
struct netent netent_buf;
char buf[1024];
return getnetbyname_r((const char *)0, &netent_buf, buf, (int)sizeof buf) != NULL;
}
"
HAVE_SOLARIS_IRIX_GETNETBYNAME_R)
if(NOT HAVE_SOLARIS_IRIX_GETNETBYNAME_R)
check_c_source_compiles(
"#include <netdb.h>
int
main(void)
{
struct netent netent_buf;
struct netent_data net_data;
return getnetbyname_r((const char *)0, &netent_buf, &net_data);
}
"
HAVE_AIX_GETNETBYNAME_R)
endif(NOT HAVE_SOLARIS_IRIX_GETNETBYNAME_R)
endif(NOT HAVE_LINUX_GETNETBYNAME_R)
endif(NETDB_H_DECLARES_GETNETBYNAME_R)
cmake_pop_check_state()
#
# Check for reentrant versions of getprotobyname_r(), as provided by
# Linux (glibc), Solaris/IRIX, and AIX (with three different APIs!).
# If we don't find one, we just use getprotobyname(), which uses
# thread-specific data on many platforms, but doesn't use it on
# NetBSD or OpenBSD, and may not use it on older versions of other
# platforms.
#
# Only do the check if we have a declaration of getprotobyname_r();
# without it, we can't check which API it has. (We assume that
# if there's a declaration, it has a prototype, so that the API
# can be checked.)
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LINK_LIBRARIES})
check_symbol_exists(getprotobyname_r netdb.h NETDB_H_DECLARES_GETPROTOBYNAME_R)
if(NETDB_H_DECLARES_GETPROTOBYNAME_R)
check_c_source_compiles(
"#include <netdb.h>
int
main(void)
{
struct protoent protoent_buf;
char buf[1024];
struct protoent *resultp;
return getprotobyname_r((const char *)0, &protoent_buf, buf, sizeof buf, &resultp);
}
"
HAVE_LINUX_GETPROTOBYNAME_R)
if(NOT HAVE_LINUX_GETPROTOBYNAME_R)
check_c_source_compiles(
"#include <netdb.h>
int
main(void)
{
struct protoent protoent_buf;
char buf[1024];
return getprotobyname_r((const char *)0, &protoent_buf, buf, (int)sizeof buf) != NULL;
}
"
HAVE_SOLARIS_IRIX_GETPROTOBYNAME_R)
if(NOT HAVE_SOLARIS_IRIX_GETPROTOBYNAME_R)
check_c_source_compiles(
"#include <netdb.h>
int
main(void)
{
struct protoent protoent_buf;
struct protoent_data proto_data;
return getprotobyname_r((const char *)0, &protoent_buf, &proto_data);
}
"
HAVE_AIX_GETPROTOBYNAME_R)
endif(NOT HAVE_SOLARIS_IRIX_GETPROTOBYNAME_R)
endif(NOT HAVE_LINUX_GETPROTOBYNAME_R)
endif(NETDB_H_DECLARES_GETPROTOBYNAME_R)
cmake_pop_check_state()
#
# Data types.
#
# XXX - there's no check_type() macro that's like check_type_size()
# except that it only checks for the existence of the structure type,
# so we use check_type_size() and ignore the size.
#
cmake_push_check_state()
if(WIN32)
set(CMAKE_EXTRA_INCLUDE_FILES winsock2.h)
else(WIN32)
set(CMAKE_EXTRA_INCLUDE_FILES unistd.h sys/socket.h)
endif(WIN32)
check_type_size("struct sockaddr_storage" STRUCT_SOCKADDR_STORAGE)
check_type_size("socklen_t" SOCKLEN_T)
cmake_pop_check_state()
#
# Structure fields.
#
if(WIN32)
check_struct_has_member("struct sockaddr" sa_len winsock2.h HAVE_STRUCT_SOCKADDR_SA_LEN)
else(WIN32)
check_struct_has_member("struct sockaddr" sa_len sys/socket.h HAVE_STRUCT_SOCKADDR_SA_LEN)
endif(WIN32)
#
# Do we have ffs(), and is it declared in <strings.h>?
#
check_function_exists(ffs HAVE_FFS)
if(HAVE_FFS)
#
# OK, we have ffs(). Is it declared in <strings.h>?
#
# This test fails if we don't have <strings.h> or if we do
# but it doesn't declare ffs().
#
check_symbol_exists(ffs strings.h STRINGS_H_DECLARES_FFS)
endif()
#
# This requires the libraries that we require, as ether_hostton might be
# in one of those libraries. That means we have to do this after
# we check for those libraries.
#
# You are in a twisty little maze of UN*Xes, all different.
# Some might not have ether_hostton().
# Some might have it and declare it in <net/ethernet.h>.
# Some might have it and declare it in <netinet/ether.h>
# Some might have it and declare it in <sys/ethernet.h>.
# Some might have it and declare it in <arpa/inet.h>.
# Some might have it and declare it in <netinet/if_ether.h>.
# Some might have it and not declare it in any header file.
#
# Before you is a C compiler.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LINK_LIBRARIES})
check_function_exists(ether_hostton HAVE_ETHER_HOSTTON)
if(HAVE_ETHER_HOSTTON)
#
# OK, we have ether_hostton(). Is it declared in <net/ethernet.h>?
#
# This test fails if we don't have <net/ethernet.h> or if we do
# but it doesn't declare ether_hostton().
#
check_symbol_exists(ether_hostton net/ethernet.h NET_ETHERNET_H_DECLARES_ETHER_HOSTTON)
if(NET_ETHERNET_H_DECLARES_ETHER_HOSTTON)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_HOSTTON TRUE)
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_HOSTTON)
#
# No - how about <netinet/ether.h>, as on Linux?
#
# This test fails if we don't have <netinet/ether.h>
# or if we do but it doesn't declare ether_hostton().
#
check_symbol_exists(ether_hostton netinet/ether.h NETINET_ETHER_H_DECLARES_ETHER_HOSTTON)
if(NETINET_ETHER_H_DECLARES_ETHER_HOSTTON)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_HOSTTON TRUE)
endif()
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_HOSTTON)
#
# No - how about <sys/ethernet.h>, as on Solaris 10 and later?
#
# This test fails if we don't have <sys/ethernet.h>
# or if we do but it doesn't declare ether_hostton().
#
check_symbol_exists(ether_hostton sys/ethernet.h SYS_ETHERNET_H_DECLARES_ETHER_HOSTTON)
if(SYS_ETHERNET_H_DECLARES_ETHER_HOSTTON)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_HOSTTON TRUE)
endif()
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_HOSTTON)
#
# No, how about <arpa/inet.h>, as on AIX?
#
# This test fails if we don't have <arpa/inet.h>
# or if we do but it doesn't declare ether_hostton().
#
check_symbol_exists(ether_hostton arpa/inet.h ARPA_INET_H_DECLARES_ETHER_HOSTTON)
if(ARPA_INET_H_DECLARES_ETHER_HOSTTON)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_HOSTTON TRUE)
endif()
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_HOSTTON)
#
# No, how about <netinet/if_ether.h>?
# On some platforms, it requires <net/if.h> and
# <netinet/in.h>, and we always include it with
# both of them, so test it with both of them.
#
# This test fails if we don't have <netinet/if_ether.h>
# and the headers we include before it, or if we do but
# <netinet/if_ether.h> doesn't declare ether_hostton().
#
check_symbol_exists(ether_hostton "sys/types.h;sys/socket.h;net/if.h;netinet/in.h;netinet/if_ether.h" NETINET_IF_ETHER_H_DECLARES_ETHER_HOSTTON)
if(NETINET_IF_ETHER_H_DECLARES_ETHER_HOSTTON)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_HOSTTON TRUE)
endif()
endif()
#
# After all that, is ether_hostton() declared?
#
if(NOT HAVE_DECL_ETHER_HOSTTON)
#
# No, we'll have to declare it ourselves.
# Do we have "struct ether_addr" if we include <netinet/if_ether.h>?
#
# XXX - there's no check_type() macro that's like check_type_size()
# except that it only checks for the existence of the structure type,
# so we use check_type_size() and ignore the size.
#
cmake_push_check_state()
set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h sys/socket.h net/if.h netinet/in.h netinet/if_ether.h)
check_type_size("struct ether_addr" STRUCT_ETHER_ADDR)
cmake_pop_check_state()
endif()
endif()
cmake_pop_check_state()
#
# Large file support on UN*X, a/k/a LFS.
#
if(NOT WIN32)
include(FindLFS)
if(LFS_FOUND)
#
# Add the required #defines.
#
add_definitions(${LFS_DEFINITIONS})
endif()
#
# Check for fseeko as well.
#
include(FindFseeko)
if(FSEEKO_FOUND)
set(HAVE_FSEEKO ON)
#
# Add the required #defines.
#
add_definitions(${FSEEKO_DEFINITIONS})
endif()
endif()
if(INET6)
message(STATUS "Support IPv6")
endif(INET6)
#
# Pthreads.
# We might need them, because some libraries we use might use them,
# but we don't necessarily need them.
# That's only on UN*X; on Windows, if they use threads, we assume
# they're native Windows threads.
#
if(NOT WIN32)
set(CMAKE_THREAD_PREFER_PTHREAD ON)
find_package(Threads)
if(NOT CMAKE_USE_PTHREADS_INIT)
#
# If it's not pthreads, we won't use it; we use it for libraries
# that require it.
#
set(CMAKE_THREAD_LIBS_INIT "")
endif(NOT CMAKE_USE_PTHREADS_INIT)
endif(NOT WIN32)
######################################
# Input files
######################################
set(PROJECT_SOURCE_LIST_C
bpf_dump.c
bpf_filter.c
bpf_image.c
etherent.c
fmtutils.c
gencode.c
nametoaddr.c
optimize.c
pcap-common.c
pcap.c
savefile.c
sf-pcapng.c
sf-pcap.c
)
if(WIN32)
#
# For now, we assume we don't have snprintf() or that it's not one
# that behaves enough like C99's snprintf() for our purposes (i.e.,
# it doesn't null-terminate the string if it truncates it to fit in
# the buffer), so we have to provide our own (a wrapper around
# _snprintf() that null-terminates the buffer).
#
# We also assume we don't have asprintf(), and provide an implementation
# that uses _vscprintf() to determine how big the string needs to be.
#
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C}
missing/win_snprintf.c missing/win_asprintf.c)
else()
#
# Either:
#
# we have snprintf() and vsnprintf(), and have asprintf() and
# vasprintf();
#
# we have snprintf() and vsnprintf(), but don't have asprintf()
# or vasprintf();
#
# we have neither snprintf() nor vsnprintf(), and don't have
# asprintf() or vasprintf(), either.
#
# We assume that if we have asprintf() we have vasprintf(), as well
# as snprintf() and vsnprintf(), and that if we have snprintf() we
# have vsnprintf().
#
# For the first case, we don't need any replacement routines.
# For the second case, we need replacement asprintf()/vasprintf()
# routines.
# For the third case, we need replacement snprintf()/vsnprintf() and
# asprintf()/vasprintf() routines.
#
if(NOT HAVE_SNPRINTF)
#
# We assume we have none of them; missing/snprintf.c supplies
# all of them.
#
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} missing/snprintf.c)
elif(NOT HAVE_ASPRINTF)
#
# We assume we have snprintf()/vsnprintf() but lack
# asprintf()/vasprintf(); missing/asprintf.c supplies
# the latter (using vsnprintf()).
#
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} missing/asprintf.c)
endif()
if(NOT HAVE_STRLCAT)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} missing/strlcat.c)
endif(NOT HAVE_STRLCAT)
if(NOT HAVE_STRLCPY)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} missing/strlcpy.c)
endif(NOT HAVE_STRLCPY)
if(NOT HAVE_STRTOK_R)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} missing/strtok_r.c)
endif(NOT HAVE_STRTOK_R)
endif(WIN32)
#
# Determine the main pcap-XXX.c file to use, and the libraries with
# which we need to link libpcap, if any.
#
if(WIN32)
#
# Windows.
#
# Has the user explicitly specified a capture type?
#
if(PCAP_TYPE STREQUAL "")
#
# The user didn't explicitly specify a capture mechanism.
# Check whether we have packet.dll.
#
if(HAVE_PACKET32)
#
# We have packet.dll.
# Set the capture type to NPF.
#
set(PCAP_TYPE npf)
else()
#
# We don't have any capture type we know about, so just use
# the null capture type, and only support reading (and writing)
# capture files.
#
set(PCAP_TYPE null)
endif()
endif()
else()
#
# UN*X.
#
# Figure out what type of packet capture mechanism we have, and
# what libraries we'd need to link libpcap with, if any.
#
#
# Has the user explicitly specified a capture type?
#
if(PCAP_TYPE STREQUAL "")
#
# Check for a bunch of headers for various packet capture mechanisms.
#
check_include_files("sys/types.h;net/bpf.h" HAVE_NET_BPF_H)
if(HAVE_NET_BPF_H)
#
# Does it define BIOCSETIF?
# I.e., is it a header for an LBL/BSD-style capture
# mechanism, or is it just a header for a BPF filter
# engine? Some versions of Arch Linux, for example,
# have a net/bpf.h that doesn't define BIOCSETIF;
# as it's a Linux, it should use packet sockets,
# instead.
#
# We need:
#
# sys/types.h, because FreeBSD 10's net/bpf.h
# requires that various BSD-style integer types
# be defined;
#
# sys/time.h, because AIX 5.2 and 5.3's net/bpf.h
# doesn't include it but does use struct timeval
# in ioctl definitions;
#
# sys/ioctl.h and, if we have it, sys/ioccom.h,
# because net/bpf.h defines ioctls;
#
# net/if.h, because it defines some structures
# used in ioctls defined by net/bpf.h;
#
# sys/socket.h, because OpenBSD 5.9's net/bpf.h
# defines some structure fields as being
# struct sockaddrs;
#
# and net/bpf.h doesn't necessarily include all
# of those headers itself.
#
if(HAVE_SYS_IOCCOM_H)
check_symbol_exists(BIOCSETIF "sys/types.h;sys/time.h;sys/ioctl.h;sys/socket.h;sys/ioccom.h;net/bpf.h;net/if.h" BPF_H_DEFINES_BIOCSETIF)
else(HAVE_SYS_IOCCOM_H)
check_symbol_exists(BIOCSETIF "sys/types.h;sys/time.h;sys/ioctl.h;sys/socket.h;net/bpf.h;net/if.h" BPF_H_DEFINES_BIOCSETIF)
endif(HAVE_SYS_IOCCOM_H)
endif(HAVE_NET_BPF_H)
check_include_file(net/pfilt.h HAVE_NET_PFILT_H)
check_include_file(net/enet.h HAVE_NET_ENET_H)
check_include_file(net/nit.h HAVE_NET_NIT_H)
check_include_file(sys/net/nit.h HAVE_SYS_NET_NIT_H)
check_include_file(linux/socket.h HAVE_LINUX_SOCKET_H)
check_include_file(net/raw.h HAVE_NET_RAW_H)
check_include_file(sys/dlpi.h HAVE_SYS_DLPI_H)
if(BPF_H_DEFINES_BIOCSETIF)
#
# BPF.
# Check this before DLPI, so that we pick BPF on
# Solaris 11 and later.
#
set(PCAP_TYPE bpf)
elseif(HAVE_LINUX_SOCKET_H)
#
# No prizes for guessing this one.
#
set(PCAP_TYPE linux)
elseif(HAVE_NET_PFILT_H)
#
# DEC OSF/1, Digital UNIX, Tru64 UNIX
#
set(PCAP_TYPE pf)
elseif(HAVE_NET_ENET_H)
#
# Stanford Enetfilter.
#
set(PCAP_TYPE enet)
elseif(HAVE_NET_NIT_H)
#
# SunOS 4.x STREAMS NIT.
#
set(PCAP_TYPE snit)
elseif(HAVE_SYS_NET_NIT_H)
#
# Pre-SunOS 4.x non-STREAMS NIT.
#
set(PCAP_TYPE nit)
elseif(HAVE_NET_RAW_H)
#
# IRIX snoop.
#
set(PCAP_TYPE snoop)
elseif(HAVE_SYS_DLPI_H)
#
# DLPI on pre-Solaris 11 SunOS 5, HP-UX, possibly others.
#
set(PCAP_TYPE dlpi)
else()
#
# Nothing we support.
#
set(PCAP_TYPE null)
endif()
endif()
endif(WIN32)
message(STATUS "Packet capture mechanism type: ${PCAP_TYPE}")
#
# Do capture-mechanism-dependent tests.
#
if(WIN32)
if(PCAP_TYPE STREQUAL "npf")
#
# Link with packet.dll before WinSock2.
#
set(PCAP_LINK_LIBRARIES ${PACKET_LIBRARIES} ${PCAP_LINK_LIBRARIES})
elseif(PCAP_TYPE STREQUAL "null")
else()
message(ERROR "${PCAP_TYPE} is not a valid pcap type")
endif()
else(WIN32)
if(PCAP_TYPE STREQUAL "dlpi")
#
# Needed for common functions used by pcap-[dlpi,libdlpi].c
#
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} dlpisubs.c)
#
# Checks for some header files.
#
check_include_file(sys/bufmod.h HAVE_SYS_BUFMOD_H)
check_include_file(sys/dlpi_ext.h HAVE_SYS_DLPI_EXT_H)
#
# Checks to see if Solaris has the public libdlpi(3LIB) library.
# Note: The existence of /usr/include/libdlpi.h does not mean it is the
# public libdlpi(3LIB) version. Before libdlpi was made public, a
# private version also existed, which did not have the same APIs.
# Due to a gcc bug, the default search path for 32-bit libraries does
# not include /lib, we add it explicitly here.
# [http://bugs.opensolaris.org/view_bug.do?bug_id=6619485].
# Also, due to the bug above applications that link to libpcap with
# libdlpi will have to add "-L/lib" option to "configure".
#
cmake_push_check_state()
set(CMAKE_REQUIRED_FLAGS "-L/lib")
set(CMAKE_REQUIRED_LIBRARIES dlpi)
check_function_exists(dlpi_walk HAVE_LIBDLPI)
cmake_pop_check_state()
if(HAVE_LIBDLPI)
#
# XXX - add -L/lib
#
set(PCAP_LINK_LIBRARIES ${PCAP_LINK_LIBRARIES} dlpi)
set(PCAP_TYPE libdlpi)
endif()
#
# This check is for Solaris with DLPI support for passive modes.
# See dlpi(7P) for more details.
#
# XXX - there's no check_type() macro that's like check_type_size()
# except that it only checks for the existence of the structure type,
# so we use check_type_size() and ignore the size.
#
cmake_push_check_state()
set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h sys/dlpi.h)
check_type_size(dl_passive_req_t DL_PASSIVE_REQ_T)
cmake_pop_check_state()
elseif(PCAP_TYPE STREQUAL "linux")
#
# Do we have the wireless extensions?
# linux/wireless.h requires sys/socket.h.
#
check_include_files("sys/socket.h;linux/wireless.h" HAVE_LINUX_WIRELESS_H)
#
# Do we have libnl?
#
if(BUILD_WITH_LIBNL)
#
# Try libnl 3.x first.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES nl-3)
check_function_exists(nl_socket_alloc HAVE_LIBNL)
cmake_pop_check_state()
if(HAVE_LIBNL)
#
# Yes, we have libnl 3.x.
#
set(PCAP_LINK_LIBRARIES nl-genl-3 nl-3 ${PCAP_LINK_LIBRARIES})
set(HAVE_LIBNL_3_x ON)
set(HAVE_LIBNL_NLE ON)
set(HAVE_LIBNL_SOCKETS ON)
include_directories("/usr/include/libnl3")
else()
#
# Try libnl 2.x.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES nl)
check_function_exists(nl_socket_alloc HAVE_LIBNL)
cmake_pop_check_state()
if(HAVE_LIBNL)
#
# Yes, we have libnl 2.x.
#
set(PCAP_LINK_LIBRARIES nl-genl nl ${PCAP_LINK_LIBRARIES})
set(HAVE_LIBNL_2_x ON)
set(HAVE_LIBNL_NLE ON)
set(HAVE_LIBNL_SOCKETS ON)
else()
#
# No, we don't; do we have libnl 1.x?
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES nl)
check_function_exists(nl_handle_alloc HAVE_LIBNL)
cmake_pop_check_state()
if(HAVE_LIBNL)
set(PCAP_LINK_LIBRARIES nl ${PCAP_LINK_LIBRARIES})
endif()
endif()
endif()
endif()
check_include_file(linux/ethtool.h HAVE_LINUX_ETHTOOL_H)
#
# Checks to see if tpacket_stats is defined in linux/if_packet.h
# If so then pcap-linux.c can use this to report proper statistics.
#
# XXX - there's no check_type() macro that's like check_type_size()
# except that it only checks for the existence of the structure type,
# so we use check_type_size() and ignore the size.
#
cmake_push_check_state()
set(CMAKE_EXTRA_INCLUDE_FILES linux/if_packet.h)
check_type_size("struct tpacket_stats" STRUCT_TPACKET_STATS)
cmake_pop_check_state()
check_struct_has_member("struct tpacket_auxdata" tp_vlan_tci linux/if_packet.h HAVE_STRUCT_TPACKET_AUXDATA_TP_VLAN_TCI)
elseif(PCAP_TYPE STREQUAL "bpf")
#
# Check whether we have the *BSD-style ioctls.
#
check_include_files("sys/types.h;net/if_media.h" HAVE_NET_IF_MEDIA_H)
#
# Check whether we have struct BPF_TIMEVAL.
#
# XXX - there's no check_type() macro that's like check_type_size()
# except that it only checks for the existence of the structure type,
# so we use check_type_size() and ignore the size.
#
cmake_push_check_state()
if(HAVE_SYS_IOCCOM_H)
set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h sys/ioccom.h net/bpf.h)
check_type_size("struct BPF_TIMEVAL" STRUCT_BPF_TIMEVAL)
else()
set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h net/bpf.h)
check_type_size("struct BPF_TIMEVAL" STRUCT_BPF_TIMEVAL)
endif()
cmake_pop_check_state()
elseif(PCAP_TYPE STREQUAL "null")
else()
message(FATAL_ERROR "${PCAP_TYPE} is not a valid pcap type")
endif()
endif(WIN32)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-${PCAP_TYPE}.c)
#
# Now figure out how we get a list of interfaces and addresses,
# if we support capturing. Don't bother if we don't support
# capturing.
#
if(NOT WIN32)
#
# UN*X - figure out what type of interface list mechanism we
# have.
#
# If the capture type is null, that means we can't capture,
# so we can't open any capture devices, so we won't return
# any interfaces.
#
if(NOT PCAP_TYPE STREQUAL "null")
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LINK_LIBRARIES})
check_function_exists(getifaddrs HAVE_GETIFADDRS)
cmake_pop_check_state()
if(NOT HAVE_GETIFADDRS)
#
# It's not in the libraries that, at this point, we've
# found we need to link libpcap with.
#
# It's in libsocket on Solaris and possibly other OSes;
# as long as we're not linking with libxnet, check there.
#
# NOTE: if you hand check_library_exists as its last
# argument a variable that's been set, it skips the test,
# so we need different variables.
#
if(NOT LIBXNET_HAS_GETHOSTBYNAME)
check_library_exists(socket getifaddrs "" SOCKET_HAS_GETIFADDRS)
if(SOCKET_HAS_GETIFADDRS)
set(PCAP_LINK_LIBRARIES socket ${PCAP_LINK_LIBRARIES})
set(HAVE_GETIFADDRS TRUE)
endif()
endif()
endif()
if(HAVE_GETIFADDRS)
#
# We have "getifaddrs()"; make sure we have <ifaddrs.h>
# as well, just in case some platform is really weird.
# It may require that sys/types.h be included first,
# so include it first.
#
check_include_files("sys/types.h;ifaddrs.h" HAVE_IFADDRS_H)
if(HAVE_IFADDRS_H)
#
# We have the header, so we use "getifaddrs()" to
# get the list of interfaces.
#
set(FINDALLDEVS_TYPE getad)
else()
#
# We don't have the header - give up.
# XXX - we could also fall back on some other
# mechanism, but, for now, this'll catch this
# problem so that we can at least try to figure
# out something to do on systems with "getifaddrs()"
# but without "ifaddrs.h", if there is something
# we can do on those systems.
#
message(FATAL_ERROR "Your system has getifaddrs() but doesn't have a usable <ifaddrs.h>.")
endif()
else()
#
# Well, we don't have "getifaddrs()", at least not with the
# libraries with which we've decided we need to link
# libpcap with, so we have to use some other mechanism.
#
# Note that this may happen on Solaris, which has
# getifaddrs(), but in -lsocket, not in -lxnet, so we
# won't find it if we link with -lxnet, which we want
# to do for other reasons.
#
# For now, we use either the SIOCGIFCONF ioctl or the
# SIOCGLIFCONF ioctl, preferring the latter if we have
# it; the latter is a Solarisism that first appeared
# in Solaris 8. (Solaris's getifaddrs() appears to
# be built atop SIOCGLIFCONF; using it directly
# avoids a not-all-that-useful middleman.)
#
try_compile(HAVE_SIOCGLIFCONF ${CMAKE_CURRENT_BINARY_DIR} "${pcap_SOURCE_DIR}/cmake/have_siocglifconf.c" )
if(HAVE_SIOCGLIFCONF)
set(FINDALLDEVS_TYPE glifc)
else()
set(FINDALLDEVS_TYPE gifc)
endif()
endif()
message(STATUS "Find-interfaces mechanism type: ${FINDALLDEVS_TYPE}")
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} fad-${FINDALLDEVS_TYPE}.c)
endif()
endif()
# Check for hardware timestamp support.
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
check_include_file(linux/net_tstamp.h HAVE_LINUX_NET_TSTAMP_H)
endif()
#
# Check for additional native sniffing capabilities.
#
# Check for USB sniffing support on Linux.
# On FreeBSD, it uses BPF, so we don't need to do anything special here.
if(NOT DISABLE_USB)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(PCAP_SUPPORT_USB TRUE)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-usb-linux.c)
set(LINUX_USB_MON_DEV /dev/usbmon)
#
# Do we have a version of <linux/compiler.h> available?
# If so, we might need it for <linux/usbdevice_fs.h>.
#
check_include_files("linux/compiler.h" HAVE_LINUX_COMPILER_H)
if(HAVE_LINUX_COMPILER_H)
#
# Yes - include it when testing for <linux/usbdevice_fs.h>.
#
check_include_files("linux/compiler.h;linux/usbdevice_fs.h" HAVE_LINUX_USBDEVICE_FS_H)
else(HAVE_LINUX_COMPILER_H)
check_include_files("linux/usbdevice_fs.h" HAVE_LINUX_USBDEVICE_FS_H)
endif(HAVE_LINUX_COMPILER_H)
if(HAVE_LINUX_USBDEVICE_FS_H)
#
# OK, does it define bRequestType? Older versions of the kernel
# define fields with names like "requesttype, "request", and
# "value", rather than "bRequestType", "bRequest", and
# "wValue".
#
if(HAVE_LINUX_COMPILER_H)
check_struct_has_member("struct usbdevfs_ctrltransfer" bRequestType "linux/compiler.h;linux/usbdevice_fs.h" HAVE_STRUCT_USBDEVFS_CTRLTRANSFER_BREQUESTTYPE)
else(HAVE_LINUX_COMPILER_H)
check_struct_has_member("struct usbdevfs_ctrltransfer" bRequestType "linux/usbdevice_fs.h" HAVE_STRUCT_USBDEVFS_CTRLTRANSFER_BREQUESTTYPE)
endif(HAVE_LINUX_COMPILER_H)
endif()
endif()
endif()
# Check for netfilter sniffing support.
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
#
# Life's too short to deal with trying to get this to compile
# if you don't get the right types defined with
# __KERNEL_STRICT_NAMES getting defined by some other include.
#
# Check whether the includes Just Work. If not, don't turn on
# netfilter support.
#
check_c_source_compiles(
"#include <sys/socket.h>
#include <netinet/in.h>
#include <linux/types.h>
#include <linux/netlink.h>
#include <linux/netfilter.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/nfnetlink_log.h>
#include <linux/netfilter/nfnetlink_queue.h>
int
main(void)
{
return 0;
}
"
PCAP_SUPPORT_NETFILTER)
if(PCAP_SUPPORT_NETFILTER)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-netfilter-linux.c)
endif(PCAP_SUPPORT_NETFILTER)
endif()
# Check for netmap sniffing support.
if(NOT DISABLE_NETMAP)
#
# Check whether net/netmap_user.h is usable if NETMAP_WITH_LIBS is
# defined; it's not usable on DragonFly BSD 4.6 if NETMAP_WITH_LIBS
# is defined, for example, as it includes a non-existent malloc.h
# header.
#
check_c_source_compiles(
"#define NETMAP_WITH_LIBS
#include <net/netmap_user.h>
int
main(void)
{
return 0;
}
"
PCAP_SUPPORT_NETMAP)
if(PCAP_SUPPORT_NETMAP)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-netmap.c)
endif(PCAP_SUPPORT_NETMAP)
endif()
# Check for Bluetooth sniffing support
if(NOT DISABLE_BLUETOOTH)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
check_include_file(bluetooth/bluetooth.h HAVE_BLUETOOTH_BLUETOOTH_H)
if(HAVE_BLUETOOTH_BLUETOOTH_H)
set(PCAP_SUPPORT_BT TRUE)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-bt-linux.c)
#
# OK, does struct sockaddr_hci have an hci_channel
# member?
#
check_struct_has_member("struct sockaddr_hci" hci_channel "bluetooth/bluetooth.h;bluetooth/hci.h" HAVE_STRUCT_SOCKADDR_HCI_HCI_CHANNEL)
if(HAVE_STRUCT_SOCKADDR_HCI_HCI_CHANNEL)
#
# OK, is HCI_CHANNEL_MONITOR defined?
#
check_c_source_compiles(
"#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
int
main(void)
{
u_int i = HCI_CHANNEL_MONITOR;
return 0;
}
"
PCAP_SUPPORT_BT_MONITOR)
if(PCAP_SUPPORT_BT_MONITOR)
#
# Yes, so we can also support Bluetooth monitor
# sniffing.
#
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-bt-monitor-linux.c)
endif(PCAP_SUPPORT_BT_MONITOR)
endif(HAVE_STRUCT_SOCKADDR_HCI_HCI_CHANNEL)
endif(HAVE_BLUETOOTH_BLUETOOTH_H)
endif()
endif()
# Check for Bluetooth sniffing support
if(NOT DISABLE_DBUS)
#
# We don't support D-Bus sniffing on macOS; see
#
# https://bugs.freedesktop.org/show_bug.cgi?id=74029
#
if(APPLE)
message(FATAL_ERROR "Due to freedesktop.org bug 74029, D-Bus capture support is not available on macOS")
endif(APPLE)
include(FindPkgConfig)
pkg_check_modules(DBUS dbus-1)
if(DBUS_FOUND)
set(PCAP_SUPPORT_DBUS TRUE)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-dbus.c)
include_directories(${DBUS_INCLUDE_DIRS})
#
# This "helpfully" supplies DBUS_LIBRARIES as a bunch of
# library names - not paths - and DBUS_LIBRARY_DIRS as
# a bunch of directories.
#
# CMake *really* doesn't like the notion of specifying "here are
# the directories in which to look for libraries" except in
# find_library() calls; it *really* prefers using full paths to
# library files, rather than library names.
#
# Find the libraries and add their full paths.
#
set(DBUS_LIBRARY_FULLPATHS)
foreach(_lib IN LISTS DBUS_LIBRARIES)
#
# Try to find this library, so we get its full path.
#
find_library(_libfullpath ${_lib} HINTS ${DBUS_LIBRARY_DIRS})
list(APPEND DBUS_LIBRARY_FULLPATHS ${_libfullpath})
endforeach()
set(PCAP_LINK_LIBRARIES ${PCAP_LINK_LIBRARIES} ${DBUS_LIBRARY_FULLPATHS})
endif(DBUS_FOUND)
endif(NOT DISABLE_DBUS)
# Check for RDMA sniffing support
if(NOT DISABLE_RDMA)
check_library_exists(ibverbs ibv_get_device_list "" LIBIBVERBS_HAS_IBV_GET_DEVICE_LIST)
if(LIBIBVERBS_HAS_IBV_GET_DEVICE_LIST)
check_include_file(infiniband/verbs.h HAVE_INFINIBAND_VERBS_H)
if(HAVE_INFINIBAND_VERBS_H)
check_symbol_exists(ibv_create_flow infiniband/verbs.h PCAP_SUPPORT_RDMASNIFF)
if(PCAP_SUPPORT_RDMASNIFF)
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-rdmasniff.c)
set(PCAP_LINK_LIBRARIES ibverbs ${PCAP_LINK_LIBRARIES})
endif(PCAP_SUPPORT_RDMASNIFF)
endif(HAVE_INFINIBAND_VERBS_H)
endif(LIBIBVERBS_HAS_IBV_GET_DEVICE_LIST)
endif(NOT DISABLE_RDMA)
#
# Check for sniffing capabilities using third-party APIs.
#
# Check for Endace DAG card support.
if(NOT DISABLE_DAG)
#
# Try to find the DAG header file and library.
#
find_package(DAG)
#
# Did we succeed?
#
if(DAG_FOUND)
#
# Yes.
# Check for various DAG API functions.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES ${DAG_INCLUDE_DIRS})
set(CMAKE_REQUIRED_LIBRARIES ${DAG_LIBRARIES})
check_function_exists(dag_attach_stream HAVE_DAG_STREAMS_API)
if(NOT HAVE_DAG_STREAMS_API)
message(FATAL_ERROR "DAG library lacks streams support")
endif()
check_function_exists(dag_attach_stream64 HAVE_DAG_LARGE_STREAMS_API)
check_function_exists(dag_get_erf_types HAVE_DAG_GET_ERF_TYPES)
check_function_exists(dag_get_stream_erf_types HAVE_DAG_GET_STREAM_ERF_TYPES)
cmake_pop_check_state()
include_directories(AFTER ${DAG_INCLUDE_DIRS})
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-dag.c)
set(HAVE_DAG_API TRUE)
set(PCAP_LINK_LIBRARIES ${PCAP_LINK_LIBRARIES} ${DAG_LIBRARIES})
if(HAVE_DAG_LARGE_STREAMS_API)
get_filename_component(DAG_LIBRARY_DIR ${DAG_LIBRARY} PATH)
check_library_exists(vdag vdag_set_device_info ${DAG_LIBRARY_DIR} HAVE_DAG_VDAG)
if(HAVE_DAG_VDAG)
set(PCAP_LINK_LIBRARIES ${PCAP_LINK_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
endif()
endif()
endif()
endif()
# Check for Septel card support.
set(PROJECT_EXTERNAL_OBJECT_LIST "")
if(NOT DISABLE_SEPTEL)
#
# Do we have the msg.h header?
#
set(SEPTEL_INCLUDE_DIRS "${SEPTEL_ROOT}/INC")
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES ${SEPTEL_INCLUDE_DIRS})
check_include_file(msg.h HAVE_INC_MSG_H)
cmake_pop_check_state()
if(HAVE_INC_MSG_H)
#
# Yes.
#
include_directories(AFTER ${SEPTEL_INCLUDE_DIRS})
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-septel.c)
set(PROJECT_EXTERNAL_OBJECT_LIST ${PROJECT_EXTERNAL_OBJECT_LIST} "${SEPTEL_ROOT}/asciibin.o ${SEPTEL_ROOT}/bit2byte.o ${SEPTEL_ROOT}/confirm.o ${SEPTEL_ROOT}/fmtmsg.o ${SEPTEL_ROOT}/gct_unix.o ${SEPTEL_ROOT}/hqueue.o ${SEPTEL_ROOT}/ident.o ${SEPTEL_ROOT}/mem.o ${SEPTEL_ROOT}/pack.o ${SEPTEL_ROOT}/parse.o ${SEPTEL_ROOT}/pool.o ${SEPTEL_ROOT}/sdlsig.o ${SEPTEL_ROOT}/strtonum.o ${SEPTEL_ROOT}/timer.o ${SEPTEL_ROOT}/trace.o")
set(HAVE_SEPTEL_API TRUE)
endif()
endif()
# Check for Myricom SNF support.
if(NOT DISABLE_SNF)
#
# Try to find the SNF header file and library.
#
find_package(SNF)
#
# Did we succeed?
#
if(SNF_FOUND)
#
# Yes.
#
include_directories(AFTER ${SNF_INCLUDE_DIRS})
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-snf.c)
set(HAVE_SNF_API TRUE)
set(PCAP_LINK_LIBRARIES ${PCAP_LINK_LIBRARIES} ${SNF_LIBRARIES})
endif()
endif()
# Check for Riverbed TurboCap support.
if(NOT DISABLE_TC)
#
# Try to find the TurboCap header file and library.
#
find_package(TC)
#
# Did we succeed?
#
if(TC_FOUND)
#
# Yes.
#
include_directories(AFTER ${TC_INCLUDE_DIRS})
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} pcap-tc.c)
set(HAVE_TC_API TRUE)
set(PCAP_LINK_LIBRARIES "${PCAP_LINK_LIBRARIES} ${TC_LIBRARIES} ${CMAKE_USE_PTHREADS_INIT} stdc++")
endif()
endif()
#
# Remote capture support.
#
if(ENABLE_REMOTE)
#
# Check for various members of struct msghdr.
# We need to include ftmacros.h on some platforms, to make sure we
# get the POSIX/Single USER Specification version of struct msghdr,
# which has those members, rather than the backwards-compatible
# version, which doesn't. That's not a system header file, and
# at least some versions of CMake include it as <ftmacros.h>, which
# won't check the current directory, so we add the top-level
# source directory to the list of include directories when we do
# the check.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR})
check_struct_has_member("struct msghdr" msg_control "ftmacros.h;sys/socket.h" HAVE_STRUCT_MSGHDR_MSG_CONTROL)
check_struct_has_member("struct msghdr" msg_flags "ftmacros.h;sys/socket.h" HAVE_STRUCT_MSGHDR_MSG_FLAGS)
cmake_pop_check_state()
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C}
pcap-new.c pcap-rpcap.c rpcap-protocol.c sockutils.c)
endif(ENABLE_REMOTE)
###################################################################
# Warning options
###################################################################
#
# Check and add warning options if we have a .devel file.
#
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.devel OR EXISTS ${CMAKE_BINARY_DIR}/.devel)
#
# Warning options.
#
if(MSVC AND NOT ${CMAKE_C_COMPILER} MATCHES "clang*")
#
# MSVC, with Microsoft's front end and code generator.
# "MSVC" is also set for Microsoft's compiler with a Clang
# front end and their code generator ("Clang/C2"), so we
# check for clang.exe and treat that differently.
#
check_and_add_compiler_option(-Wall)
#
# Disable some pointless warnings that /Wall turns on.
#
# Unfortunately, MSVC does not appear to have an equivalent
# to "__attribute__((unused))" to mark a particular function
# parameter as being known to be unused, so that the compiler
# won't warn about it (for example, the function might have
# that parameter because a pointer to it is being used, and
# the signature of that function includes that parameter).
# C++ lets you give a parameter a type but no name, but C
# doesn't have that.
#
check_and_add_compiler_option(-wd4100)
#
# In theory, we care whether somebody uses f() rather than
# f(void) to declare a function with no arguments, but, in
# practice, there are places in the Windows header files
# that appear to do that, so we squelch that warning.
#
check_and_add_compiler_option(-wd4255)
#
# Windows FD_SET() generates this, so we suppress it.
#
check_and_add_compiler_option(-wd4548)
#
# Perhaps testing something #defined to be 0 with #ifdef is an
# error, and it should be tested with #if, but perhaps it's
# not, and Microsoft does that in its headers, so we squelch
# that warning.
#
check_and_add_compiler_option(-wd4574)
#
# The Windows headers also test not-defined values in #if, so
# we don't want warnings about that, either.
#
check_and_add_compiler_option(-wd4668)
#
# We do *not* care whether some function is, or isn't, going to be
# expanded inline.
#
check_and_add_compiler_option(-wd4710)
check_and_add_compiler_option(-wd4711)
#
# We do *not* care whether we're adding padding bytes after
# structure members.
#
check_and_add_compiler_option(-wd4820)
else()
#
# Other compilers, including MSVC with a Clang front end and
# Microsoft's code generator. We currently treat them as if
# they might support GCC-style -W options.
#
check_and_add_compiler_option(-Wall)
check_and_add_compiler_option(-Wsign-compare)
check_and_add_compiler_option(-Wmissing-prototypes)
check_and_add_compiler_option(-Wstrict-prototypes)
check_and_add_compiler_option(-Wshadow)
check_and_add_compiler_option(-Wdeclaration-after-statement)
check_and_add_compiler_option(-Wused-but-marked-unused)
check_and_add_compiler_option(-Wdocumentation)
check_and_add_compiler_option(-Wcomma)
check_and_add_compiler_option(-Wmissing-noreturn)
# Warns about safeguards added in case the enums are extended
# check_and_add_compiler_option(-Wcovered-switch-default)
check_and_add_compiler_option(-Wmissing-variable-declarations)
check_and_add_compiler_option(-Wunused-parameter)
check_and_add_compiler_option(-Wformat-nonliteral)
check_and_add_compiler_option(-Wunreachable-code)
endif()
endif()
#
# Suppress some warnings we get with MSVC even without /Wall.
#
if(MSVC AND NOT ${CMAKE_C_COMPILER} MATCHES "clang*")
#
# Yes, we have some functions that never return but that
# have a non-void return type. That's because, on some
# platforms, they *do* return values but, on other
# platforms, including Windows, they just fail and
# longjmp out by calling bpf_error().
#
check_and_add_compiler_option(-wd4646)
endif()
file(GLOB PROJECT_SOURCE_LIST_H
*.h
pcap/*.h
)
#
# Try to have the compiler default to hiding symbols, so that only
# symbols explicitly exported with PCAP_API will be visible outside
# (shared) libraries.
#
# Not necessary with MSVC, as that's the default.
#
# XXX - we don't use ADD_COMPILER_EXPORT_FLAGS, because, as of CMake
# 2.8.12.2, it doesn't know about Sun C/Oracle Studio, and, as of
# CMake 2.8.6, it only sets the C++ compiler flags, rather than
# allowing an arbitrary variable to be set with the "hide symbols
# not explicitly exported" flag.
#
if(NOT MSVC)
if(CMAKE_C_COMPILER_ID MATCHES "SunPro")
#
# Sun C/Oracle Studio.
#
check_and_add_compiler_option(-xldscope=hidden)
else()
#
# Try this for all other compilers; it's what GCC uses,
# and a number of other compilers, such as Clang and Intel C,
# use it as well.
#
check_and_add_compiler_option(-fvisibility=hidden)
endif()
endif(NOT MSVC)
#
# Flex/Lex and YACC/Berkeley YACC/Bison.
# From a mail message to the CMake mailing list by Andy Cedilnik of
# Kitware.
#
#
# Try to find Flex, a Windows version of Flex, or Lex.
#
find_program(LEX_EXECUTABLE NAMES flex win_flex lex)
if(LEX_EXECUTABLE STREQUAL "LEX_EXECUTABLE-NOTFOUND")
message(FATAL_ERROR "Neither flex nor win_flex nor lex was found.")
endif()
message(STATUS "Lexical analyzer generator: ${LEX_EXECUTABLE}")
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/scanner.c ${CMAKE_CURRENT_BINARY_DIR}/scanner.h
SOURCE ${pcap_SOURCE_DIR}/scanner.l
COMMAND ${LEX_EXECUTABLE} -P pcap_ --header-file=scanner.h --nounput -o${CMAKE_CURRENT_BINARY_DIR}/scanner.c ${pcap_SOURCE_DIR}/scanner.l
DEPENDS ${pcap_SOURCE_DIR}/scanner.l
)
#
# Since scanner.c does not exist yet when cmake is run, mark
# it as generated.
#
# Since scanner.c includes grammar.h, mark that as a dependency.
#
set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/scanner.c PROPERTIES
GENERATED TRUE
OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/grammar.h
)
#
# Add scanner.c to the list of sources.
#
#set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} ${CMAKE_CURRENT_BINARY_DIR}/scanner.c)
#
# Try to find YACC or Bison.
#
find_program(YACC_EXECUTABLE NAMES bison win_bison byacc yacc)
if(YACC_EXECUTABLE STREQUAL "YACC_EXECUTABLE-NOTFOUND")
message(FATAL_ERROR "Neither bison nor win_bison nor byacc nor yacc was found.")
endif()
message(STATUS "Parser generator: ${YACC_EXECUTABLE}")
#
# Create custom command for the scanner.
# Find out whether it's Bison or not by looking at the last component
# of the path (without a .exe extension, if this is Windows).
#
get_filename_component(YACC_NAME ${YACC_EXECUTABLE} NAME_WE)
if("${YACC_NAME}" STREQUAL "bison" OR "${YACC_NAME}" STREQUAL "win_bison")
set(YACC_COMPATIBILITY_FLAG "-y")
endif()
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/grammar.c ${CMAKE_CURRENT_BINARY_DIR}/grammar.h
SOURCE ${pcap_SOURCE_DIR}/grammar.y
COMMAND ${YACC_EXECUTABLE} ${YACC_COMPATIBILITY_FLAG} -p pcap_ -o ${CMAKE_CURRENT_BINARY_DIR}/grammar.c -d ${pcap_SOURCE_DIR}/grammar.y
DEPENDS ${pcap_SOURCE_DIR}/grammar.y
)
#
# Since grammar.c does not exists yet when cmake is run, mark
# it as generated.
#
set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/grammar.c PROPERTIES
GENERATED TRUE
OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/scanner.h
)
#
# Add grammar.c to the list of sources.
#
#set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} ${CMAKE_CURRENT_BINARY_DIR}/grammar.c)
#
# Assume, by default, no support for shared libraries and V7/BSD
# convention for man pages (devices in section 4, file formats in
# section 5, miscellaneous info in section 7, administrative commands
# and daemons in section 8). Individual cases can override this.
# Individual cases can override this.
#
set(MAN_DEVICES 4)
set(MAN_FILE_FORMATS 5)
set(MAN_MISC_INFO 7)
set(MAN_ADMIN_COMMANDS 8)
if(CMAKE_SYSTEM_NAME STREQUAL "AIX")
# Workaround to enable certain features
set(_SUN TRUE)
if(PCAP_TYPE STREQUAL "bpf")
#
# If we're using BPF, we need libodm and libcfg, as
# we use them to load the BPF module.
#
set(PCAP_LINK_LIBRARIES ${PCAP_LINK_LIBRARIES} odm cfg)
endif()
elseif(CMAKE_SYSTEM_NAME STREQUAL "HP-UX")
if(CMAKE_SYSTEM_VERSION MATCHES "[A-Z.]*9\.[0-9]*")
#
# HP-UX 9.x.
#
set(HAVE_HPUX9 TRUE)
elseif(CMAKE_SYSTEM_VERSION MATCHES "[A-Z.]*10\.0")
#
# HP-UX 10.0.
#
elseif(CMAKE_SYSTEM_VERSION MATCHES "[A-Z.]*10\.1")
#
# HP-UX 10.1.
#
else()
#
# HP-UX 10.20 and later.
#
set(HAVE_HPUX10_20_OR_LATER TRUE)
endif()
#
# Use System V conventions for man pages.
#
set(MAN_ADMIN_COMMANDS 1m)
set(MAN_FILE_FORMATS 4)
set(MAN_MISC_INFO 5)
elseif(CMAKE_SYSTEM_NAME STREQUAL "IRIX" OR CMAKE_SYSTEM_NAME STREQUAL "IRIX64")
#
# Use IRIX conventions for man pages; they're the same as the
# System V conventions, except that they use section 8 for
# administrative commands and daemons.
#
set(MAN_FILE_FORMATS 4)
set(MAN_MISC_INFO 5)
elseif(CMAKE_SYSTEM_NAME STREQUAL "OSF1")
#
# DEC OSF/1, a/k/a Digial UNIX, a/k/a Tru64 UNIX.
# Use Tru64 UNIX conventions for man pages; they're the same as the
# System V conventions except that they use section 8 for
# administrative commands and daemons.
#
set(MAN_FILE_FORMATS 4)
set(MAN_MISC_INFO 5)
set(MAN_DEVICES 7)
elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND CMAKE_SYSTEM_VERSION MATCHES "5[.][0-9.]*")
#
# SunOS 5.x.
#
set(HAVE_SOLARIS TRUE)
#
# Make sure errno is thread-safe, in case we're called in
# a multithreaded program. We don't guarantee that two
# threads can use the *same* pcap_t safely, but the
# current version does guarantee that you can use different
# pcap_t's in different threads, and even that pcap_compile()
# is thread-safe (it wasn't thread-safe in some older versions).
#
add_definitions(-D_TS_ERRNO)
if(CMAKE_SYSTEM_VERSION STREQUAL "5.12")
else()
#
# Use System V conventions for man pages.
#
set(MAN_ADMIN_COMMANDS 1m)
set(MAN_FILE_FORMATS 4)
set(MAN_MISC_INFO 5)
set(MAN_DEVICES 7D)
endif()
endif()
source_group("Source Files" FILES ${PROJECT_SOURCE_LIST_C})
source_group("Header Files" FILES ${PROJECT_SOURCE_LIST_H})
if(WIN32)
#
# Add pcap-dll.rc to the list of sources.
#
set(PROJECT_SOURCE_LIST_C ${PROJECT_SOURCE_LIST_C} ${pcap_SOURCE_DIR}/pcap-dll.rc)
endif(WIN32)
#
# Add subdirectories after we've set various variables, so they pick up
# pick up those variables.
#
if(ENABLE_REMOTE)
add_subdirectory(rpcapd)
endif(ENABLE_REMOTE)
add_subdirectory(testprogs)
######################################
# Register targets
######################################
#
# Special target to serialize the building of the generated source.
#
# See
#
# http://public.kitware.com/pipermail/cmake/2013-August/055510.html
#
add_custom_target(SerializeTarget
DEPENDS
${CMAKE_CURRENT_BINARY_DIR}/grammar.c
${CMAKE_CURRENT_BINARY_DIR}/scanner.c
)
set_source_files_properties(${PROJECT_EXTERNAL_OBJECT_LIST} PROPERTIES
EXTERNAL_OBJECT TRUE)
if(BUILD_SHARED_LIBS)
add_library(${LIBRARY_NAME} SHARED
${PROJECT_SOURCE_LIST_C}
${CMAKE_CURRENT_BINARY_DIR}/grammar.c
${CMAKE_CURRENT_BINARY_DIR}/scanner.c
${PROJECT_EXTERNAL_OBJECT_LIST}
)
add_dependencies(${LIBRARY_NAME} SerializeTarget)
set_target_properties(${LIBRARY_NAME} PROPERTIES
COMPILE_DEFINITIONS BUILDING_PCAP)
#
# No matter what the library is called - it might be called "wpcap"
# in a Windows build - the symbol to define to indicate that we're
# building the library, rather than a program using the library,
# and thus that we're exporting functions defined in our public
# header files, rather than importing those functions, is
# pcap_EXPORTS.
#
set_target_properties(${LIBRARY_NAME} PROPERTIES
DEFINE_SYMBOL pcap_EXPORTS)
endif(BUILD_SHARED_LIBS)
add_library(${LIBRARY_NAME}_static STATIC
${PROJECT_SOURCE_LIST_C}
${CMAKE_CURRENT_BINARY_DIR}/grammar.c
${CMAKE_CURRENT_BINARY_DIR}/scanner.c
${PROJECT_EXTERNAL_OBJECT_LIST}
)
add_dependencies(${LIBRARY_NAME}_static SerializeTarget)
set_target_properties(${LIBRARY_NAME}_static PROPERTIES
COMPILE_DEFINITIONS BUILDING_PCAP)
if(WIN32)
if(BUILD_SHARED_LIBS)
set_target_properties(${LIBRARY_NAME} PROPERTIES
VERSION ${PACKAGE_VERSION_NOSUFFIX} # only MAJOR and MINOR are needed
)
endif(BUILD_SHARED_LIBS)
if(MSVC)
# XXX For DLLs, the TARGET_PDB_FILE generator expression can be used to locate
# its PDB file's output directory for installation.
# cmake doesn't offer a generator expression for PDB files generated by the
# compiler (static libraries).
# So instead of considering any possible output there is (there are many),
# this will search for the PDB file in the compiler's initial output directory,
# which is always ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles\wpcap_static.dir
# regardless of architecture, build generator etc.
# Quite hackish indeed.
set(CMAKE_COMPILE_PDB_OUTPUT_DIRECTORY $<TARGET_FILE_DIR:${LIBRARY_NAME}_static>)
set_target_properties(${LIBRARY_NAME}_static PROPERTIES
COMPILE_PDB_NAME ${LIBRARY_NAME}_static
OUTPUT_NAME "${LIBRARY_NAME}_static"
)
elseif(MINGW)
#
# For compatibility, build the shared library without the "lib" prefix on
# MinGW as well.
#
set_target_properties(${LIBRARY_NAME} PROPERTIES
PREFIX ""
OUTPUT_NAME "${LIBRARY_NAME}"
)
set_target_properties(${LIBRARY_NAME}_static PROPERTIES
OUTPUT_NAME "${LIBRARY_NAME}"
)
endif()
else(WIN32) # UN*X
if(BUILD_SHARED_LIBS)
if(APPLE)
set_target_properties(${LIBRARY_NAME} PROPERTIES
VERSION ${PACKAGE_VERSION}
SOVERSION A
)
else(APPLE)
set_target_properties(${LIBRARY_NAME} PROPERTIES
VERSION ${PACKAGE_VERSION}
SOVERSION ${PACKAGE_VERSION_MAJOR}
)
endif(APPLE)
endif(BUILD_SHARED_LIBS)
set_target_properties(${LIBRARY_NAME}_static PROPERTIES
OUTPUT_NAME "${LIBRARY_NAME}"
)
endif(WIN32)
if(BUILD_SHARED_LIBS)
if(NOT C_ADDITIONAL_FLAGS STREQUAL "")
set_target_properties(${LIBRARY_NAME} PROPERTIES COMPILE_FLAGS ${C_ADDITIONAL_FLAGS})
endif()
target_link_libraries(${LIBRARY_NAME} ${PCAP_LINK_LIBRARIES})
endif(BUILD_SHARED_LIBS)
if(NOT C_ADDITIONAL_FLAGS STREQUAL "")
set_target_properties(${LIBRARY_NAME}_static PROPERTIES COMPILE_FLAGS ${C_ADDITIONAL_FLAGS})
endif()
#
# On macOS, build libpcap for the appropriate architectures, if
# CMAKE_OSX_ARCHITECTURES isn't set (if it is, let that control
# the architectures for which to build it).
#
if(APPLE AND "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "")
#
# Get the major version of Darwin.
#
string(REGEX MATCH "^([0-9]+)" SYSTEM_VERSION_MAJOR "${CMAKE_SYSTEM_VERSION}")
if(SYSTEM_VERSION_MAJOR LESS 8)
#
# Pre-Tiger. Build only for 32-bit PowerPC.
#
set(OSX_LIBRARY_ARCHITECTURES "ppc")
elseif(SYSTEM_VERSION_MAJOR EQUAL 8)
#
# Tiger. Is this prior to, or with, Intel support?
#
# Get the minor version of Darwin.
#
string(REPLACE "${SYSTEM_VERSION_MAJOR}." "" SYSTEM_MINOR_AND_PATCH_VERSION ${CMAKE_SYSTEM_VERSION})
string(REGEX MATCH "^([0-9]+)" SYSTEM_VERSION_MINOR "${SYSTEM_MINOR_AND_PATCH_VERSION}")
if(SYSTEM_VERSION_MINOR LESS 4)
#
# Prior to Intel support. Build for 32-bit
# PowerPC and 64-bit PowerPC, with 32-bit PowerPC
# first. (I'm guessing that's what Apple does.)
#
set(OSX_LIBRARY_ARCHITECTURES "ppc;ppc64")
elseif(SYSTEM_VERSION_MINOR LESS 7)
#
# With Intel support but prior to x86-64 support.
# Build for 32-bit PowerPC, 64-bit PowerPC, and 32-bit x86,
# with 32-bit PowerPC first.
# (I'm guessing that's what Apple does.)
#
set(OSX_LIBRARY_ARCHITECTURES "ppc;ppc64;i386")
else()
#
# With Intel support including x86-64 support.
# Build for 32-bit PowerPC, 64-bit PowerPC, 32-bit x86,
# and x86-64, with 32-bit PowerPC first.
# (I'm guessing that's what Apple does.)
#
set(OSX_LIBRARY_ARCHITECTURES "ppc;ppc64;i386;x86_64")
endif()
elseif(SYSTEM_VERSION_MAJOR EQUAL 9)
#
# Leopard. Build for 32-bit PowerPC, 64-bit
# PowerPC, 32-bit x86, and x86-64, with 32-bit PowerPC
# first. (That's what Apple does.)
#
set(OSX_LIBRARY_ARCHITECTURES "ppc;ppc64;i386;x86_64")
elseif(SYSTEM_VERSION_MAJOR EQUAL 10)
#
# Snow Leopard. Build for x86-64, 32-bit x86, and
# 32-bit PowerPC, with x86-64 first. (That's
# what Apple does, even though Snow Leopard
# doesn't run on PPC, so PPC libpcap runs under
# Rosetta, and Rosetta doesn't support BPF
# ioctls, so PPC programs can't do live
# captures.)
#
set(OSX_LIBRARY_ARCHITECTURES "x86_64;i386;ppc")
else()
#
# Post-Snow Leopard. Build for x86-64 and 32-bit x86,
# with x86-64 first. (That's what Apple does)
# XXX - update if and when Apple drops support
# for 32-bit x86 code and if and when Apple adds
# ARM-based Macs. (You're on your own for iOS etc.)
#
# XXX - check whether we *can* build for i386 and, if not,
# suggest that the user install the /usr/include headers if
# they want to build fat.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_FLAGS "-arch i386")
check_c_source_compiles(
"int
main(void)
{
return 0;
}
"
X86_32_BIT_SUPPORTED)
cmake_pop_check_state()
if(X86_32_BIT_SUPPORTED)
set(OSX_LIBRARY_ARCHITECTURES "x86_64;i386")
else()
set(OSX_LIBRARY_ARCHITECTURES "x86_64")
if(SYSTEM_VERSION_MAJOR LESS 18)
#
# Pre-Mojave; the command-line tools should be sufficient to
# enable 32-bit x86 builds.
#
message(WARNING "Compiling for 32-bit x86 gives an error; try installing the command-line tools")
else()
message(WARNING "Compiling for 32-bit x86 gives an error; try installing the command-line tools and, after that, installing the /usr/include headers from the /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg package")
endif()
endif()
endif()
if(BUILD_SHARED_LIBS)
set_target_properties(${LIBRARY_NAME} PROPERTIES
OSX_ARCHITECTURES "${OSX_LIBRARY_ARCHITECTURES}")
endif(BUILD_SHARED_LIBS)
set_target_properties(${LIBRARY_NAME}_static PROPERTIES
OSX_ARCHITECTURES "${OSX_LIBRARY_ARCHITECTURES}")
endif()
######################################
# Write out the config.h file
######################################
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmakeconfig.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)
######################################
# Install pcap library, include files, and man pages
######################################
#
# "Define GNU standard installation directories", which actually
# are also defined, to some degree, by autotools, and at least
# some of which are general UN*X conventions.
#
include(GNUInstallDirs)
set(LIBRARY_NAME_STATIC ${LIBRARY_NAME}_static)
function(install_manpage_symlink SOURCE TARGET MANDIR)
if(MINGW)
find_program(LINK_EXECUTABLE ln)
if(LINK_EXECUTABLE)
set(LINK_COMMAND "\"${LINK_EXECUTABLE}\" \"-s\" \"${SOURCE}\" \"${TARGET}\"")
else(LINK_EXECUTABLE)
message(FATAL_ERROR "ln (http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ln.html) not found.")
endif(LINK_EXECUTABLE)
else(MINGW)
set(LINK_COMMAND "\"${CMAKE_COMMAND}\" \"-E\" \"create_symlink\" \"${SOURCE}\" \"${TARGET}\"")
endif(MINGW)
install(CODE
"message(STATUS \"Symlinking: ${CMAKE_INSTALL_PREFIX}/${MANDIR}/${SOURCE} to ${TARGET}\")
execute_process(
COMMAND \"${CMAKE_COMMAND}\" \"-E\" \"remove\" \"${TARGET}\"
WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX}/${MANDIR}
)
execute_process(
COMMAND ${LINK_COMMAND}
WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX}/${MANDIR}
RESULT_VARIABLE EXIT_STATUS
)
if(NOT EXIT_STATUS EQUAL 0)
message(FATAL_ERROR \"Could not create symbolic link from ${CMAKE_INSTALL_PREFIX}/${MANDIR}/${SOURCE} to ${TARGET}\")
endif()
set(CMAKE_INSTALL_MANIFEST_FILES \${CMAKE_INSTALL_MANIFEST_FILES} ${CMAKE_INSTALL_PREFIX}/${MANDIR}/${TARGET})")
endfunction(install_manpage_symlink)
set(MAN1_NOEXPAND pcap-config.1)
set(MAN3PCAP_EXPAND
pcap.3pcap.in
pcap_compile.3pcap.in
pcap_datalink.3pcap.in
pcap_dump_open.3pcap.in
pcap_get_tstamp_precision.3pcap.in
pcap_list_datalinks.3pcap.in
pcap_list_tstamp_types.3pcap.in
pcap_open_dead.3pcap.in
pcap_open_offline.3pcap.in
pcap_set_immediate_mode.3pcap.in
pcap_set_tstamp_precision.3pcap.in
pcap_set_tstamp_type.3pcap.in
)
set(MAN3PCAP_NOEXPAND
pcap_activate.3pcap
pcap_breakloop.3pcap
pcap_can_set_rfmon.3pcap
pcap_close.3pcap
pcap_create.3pcap
pcap_datalink_name_to_val.3pcap
pcap_datalink_val_to_name.3pcap
pcap_dump.3pcap
pcap_dump_close.3pcap
pcap_dump_file.3pcap
pcap_dump_flush.3pcap
pcap_dump_ftell.3pcap
pcap_file.3pcap
pcap_fileno.3pcap
pcap_findalldevs.3pcap
pcap_freecode.3pcap
pcap_get_required_select_timeout.3pcap
pcap_get_selectable_fd.3pcap
pcap_geterr.3pcap
pcap_inject.3pcap
pcap_is_swapped.3pcap
pcap_lib_version.3pcap
pcap_lookupdev.3pcap
pcap_lookupnet.3pcap
pcap_loop.3pcap
pcap_major_version.3pcap
pcap_next_ex.3pcap
pcap_offline_filter.3pcap
pcap_open_live.3pcap
pcap_set_buffer_size.3pcap
pcap_set_datalink.3pcap
pcap_set_promisc.3pcap
pcap_set_protocol_linux.3pcap
pcap_set_rfmon.3pcap
pcap_set_snaplen.3pcap
pcap_set_timeout.3pcap
pcap_setdirection.3pcap
pcap_setfilter.3pcap
pcap_setnonblock.3pcap
pcap_snapshot.3pcap
pcap_stats.3pcap
pcap_statustostr.3pcap
pcap_strerror.3pcap
pcap_tstamp_type_name_to_val.3pcap
pcap_tstamp_type_val_to_name.3pcap
)
set(MANFILE_EXPAND pcap-savefile.manfile.in)
set(MANMISC_EXPAND
pcap-filter.manmisc.in
pcap-linktype.manmisc.in
pcap-tstamp.manmisc.in
)
if(NOT BUILD_SHARED_LIBS)
unset(LIBRARY_NAME)
endif(NOT BUILD_SHARED_LIBS)
if(WIN32)
if(MSVC AND CMAKE_SIZEOF_VOID_P EQUAL 8)
#
# Install 64-bit code built with MSVC in the amd64 subdirectories,
# as that's where it expects it to be.
#
install(TARGETS ${LIBRARY_NAME} ${LIBRARY_NAME_STATIC}
RUNTIME DESTINATION bin/amd64
LIBRARY DESTINATION lib/amd64
ARCHIVE DESTINATION lib/amd64)
if(NOT MINGW)
install(FILES $<TARGET_FILE_DIR:${LIBRARY_NAME_STATIC}>/${LIBRARY_NAME_STATIC}.pdb
DESTINATION bin/amd64 OPTIONAL)
if(BUILD_SHARED_LIBS)
install(FILES $<TARGET_PDB_FILE:${LIBRARY_NAME}>
DESTINATION bin/amd64 OPTIONAL)
endif(BUILD_SHARED_LIBS)
endif(NOT MINGW)
else(MSVC AND CMAKE_SIZEOF_VOID_P EQUAL 8)
#
# Install 32-bit code, and 64-bit code not built with MSVC
# in the top-level directories, as those are where they
# expect it to be.
#
install(TARGETS ${LIBRARY_NAME} ${LIBRARY_NAME_STATIC}
RUNTIME DESTINATION bin
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
if(NOT MINGW)
install(FILES $<TARGET_FILE_DIR:${LIBRARY_NAME_STATIC}>/${LIBRARY_NAME_STATIC}.pdb
DESTINATION bin OPTIONAL)
if(BUILD_SHARED_LIBS)
install(FILES $<TARGET_PDB_FILE:${LIBRARY_NAME}>
DESTINATION bin OPTIONAL)
endif(BUILD_SHARED_LIBS)
endif(NOT MINGW)
endif(MSVC AND CMAKE_SIZEOF_VOID_P EQUAL 8)
else(WIN32)
target_link_libraries(${_executable}
${ARGN} ${LIBRARY_NAME}_static ${PCAP_LINK_LIBRARIES})
endif(WIN32)
add_dependencies(testprogs ${_executable})
endmacro()
add_test_executable(can_set_rfmon_test)
add_test_executable(capturetest)
add_test_executable(filtertest)
add_test_executable(findalldevstest)
add_test_executable(opentest)
add_test_executable(reactivatetest)
if(NOT WIN32)
add_test_executable(selpolltest)
endif()
add_test_executable(threadsignaltest ${CMAKE_THREAD_LIBS_INIT})
if(NOT WIN32)
add_test_executable(valgrindtest)
endif()