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ffe074feba
tcpdump/CMakeLists.txt
Guy Harris ffe074feba Work around a WinPcap botch.
2018-01-29 02:04:12 -08:00

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CMake
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cmake_minimum_required(VERSION 2.8.6)
set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
project(tcpdump)
#
# Try to enable as many C99 features as we can.
# At minimum, we want C++/C99-style // comments.
# (Sadly, this won't work with CMake prior to 3.1.)
#
set(CMAKE_C_STANDARD 99)
set(LIBRARY_NAME netdissect)
###################################################################
# Parameters
###################################################################
option(WITH_SMI "Build with libsmi, if available" ON)
option(WITH_CRYPTO "Build with OpenSSL/libressl libcrypto, if available" ON)
option(WITH_CAPSICUM "Build with Capsicum security functions, if available" ON)
option(WITH_CAP_NG "Use libcap-ng, if available" ON)
option(ENABLE_SMB "Build with the SMB dissector" ON)
#
# String parameters. Neither of them are set, initially; only if the
# user explicitly configures them are they set.
#
# WITH_CHROOT is STRING, not PATH, as the directory need not exist
# when CMake is run.
#
set(WITH_CHROOT CACHE STRING
"Directory to which to chroot when dropping privileges")
set(WITH_USER CACHE STRING
"User to whom to set the UID when dropping privileges")
#
# By default, build universal with the appropriate set of architectures
# for the OS on which we're doing the build.
#
if(APPLE AND "${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 EQUAL 9)
#
# Leopard. Build for x86 and 32-bit PowerPC, with
# x86 first. (That's what Apple does.)
#
set(CMAKE_OSX_ARCHITECTURES "i386;ppc")
elseif(SYSTEM_VERSION_MAJOR EQUAL 10)
#
# Snow Leopard. Build for x86-64 and x86, with
# x86-64 first. (That's what Apple does.)
#
set(CMAKE_OSX_ARCHITECTURES "x86_64;i386")
endif()
endif()
###################################################################
# Versioning
###################################################################
# Get, parse, format and set tcpdump's version string from
# [tcpdump_root]/VERSION for later use.
# Get MAJOR, MINOR, PATCH & SUFFIX
file(STRINGS ${tcpdump_SOURCE_DIR}/VERSION
PACKAGE_VERSION
LIMIT_COUNT 1 # Read only the first line
)
######################################
# Project settings
######################################
add_definitions(-DHAVE_CONFIG_H)
include_directories(
${CMAKE_CURRENT_BINARY_DIR}
${tcpdump_SOURCE_DIR}
)
if(MSVC)
add_definitions(-D__STDC__)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif(MSVC)
if(MSVC)
if (USE_STATIC_RT)
MESSAGE(STATUS "Use STATIC runtime")
set(NAME_RT MT)
set (CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /MT")
set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /MT")
set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
set (CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} /MT")
set (CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} /MT")
set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
else (USE_STATIC_RT)
MESSAGE(STATUS "Use DYNAMIC runtime")
set(NAME_RT MD)
set (CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /MD")
set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /MD")
set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MD")
set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MDd")
set (CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} /MD")
set (CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} /MD")
set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MD")
set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MDd")
endif (USE_STATIC_RT)
endif(MSVC)
###################################################################
# Detect available platform features
###################################################################
include(CMakePushCheckState)
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckStructHasMember)
include(CheckVariableExists)
include(CheckTypeSize)
#
# Header files.
#
check_include_file(fcntl.h HAVE_FCNTL_H)
check_include_file(rpc/rpc.h HAVE_RPC_RPC_H)
if(HAVE_RPC_RPC_H)
check_include_files("rpc/rpc.h;rpc/rpcent.h" HAVE_RPC_RPCENT_H)
endif(HAVE_RPC_RPC_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_include_files("sys/types.h;sys/socket.h;net/if.h;net/pfvar.h;net/if_pflog.h" HAVE_NET_IF_PFLOG_H)
if(HAVE_NET_IF_PFLOG_H)
set(LOCALSRC print-pflog.c ${LOCALSRC})
endif(HAVE_NET_IF_PFLOG_H)
endif(HAVE_NET_PFVAR_H)
#
# As the autoconf manual says, AC_HEADER_TIME is obsolete, as all UN*Xes
# let you include both time.h and sys/time.h, so just say we can.
#
check_include_file(bitypes.h HAVE_SYS_BITYPES_H)
check_include_file(limits.h HAVE_LIMITS_H)
#
# Functions.
#
check_function_exists(strlcat HAVE_STRLCAT)
check_function_exists(strlcpy HAVE_STRLCPY)
check_function_exists(strdup HAVE_STRDUP)
check_function_exists(strsep HAVE_STRSEP)
#
# Find library needed for gethostbyaddr.
# 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(TCPDUMP_LINK_LIBRARIES "")
check_function_exists(gethostbyaddr STDLIBS_HAVE_GETHOSTBYADDR)
if(NOT STDLIBS_HAVE_GETHOSTBYADDR)
check_library_exists(socket gethostbyaddr "" LIBSOCKET_HAS_GETHOSTBYADDR)
if(LIBSOCKET_HAS_GETHOSTBYADDR)
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} socket)
else()
check_library_exists(nsl gethostbyaddr "" LIBNSL_HAS_GETHOSTBYADDR)
if(LIBNSL_HAS_GETHOSTBYADDR)
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} nsl)
endif()
endif()
endif()
#
# This may require additional libraries.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES})
check_function_exists(getservent STDLIBS_HAVE_GETSERVENT)
if(STDLIBS_HAVE_GETSERVENT)
set(HAVE_GETSERVENT TRUE)
else(STDLIBS_HAVE_GETSERVENT)
#
# Some platforms may need -lsocket for getservent.
#
set(CMAKE_REQUIRED_LIBRARIES socket ${TCPDUMP_LINK_LIBRARIES})
check_function_exists(getservent LIBSOCKET_HAS_GETSERVENT)
if(LIBSOCKET_HAS_GETSERVENT)
set(HAVE_GETSERVENT TRUE)
set(TCPDUMP_LINK_LIBRARIES socket ${TCPDUMP_LINK_LIBRARIES})
endif(LIBSOCKET_HAS_GETSERVENT)
endif(STDLIBS_HAVE_GETSERVENT)
cmake_pop_check_state()
check_function_exists(getopt_long HAVE_GETOPT_LONG)
#
# With MSVC 2015, stdio.h defines snprintf() and vsnprintf() as inline
# functions, so you need to include stdio.h when testing for them -
# check_function_exists() won't do it, you need check_symbol_exists().
#
check_symbol_exists(vsnprintf stdio.h HAVE_VSNPRINTF)
check_symbol_exists(snprintf stdio.h HAVE_SNPRINTF)
check_function_exists(fork HAVE_FORK)
check_function_exists(vfork HAVE_VFORK)
check_function_exists(strftime HAVE_STRFTIME)
check_function_exists(setlinebuf HAVE_SETLINEBUF)
#
# On Windows, we'll need the Winsock 2 library.
#
if(WIN32)
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} Ws2_32)
endif(WIN32)
#
# Some platforms may need -lnsl for getrpcbynumber.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES})
check_function_exists(getrpcbynumber STDLIBS_HAVE_GETRPCBYNUMBER)
if(STDLIBS_HAVE_GETRPCBYNUMBER)
set(HAVE_GETRPCBYNUMBER TRUE)
else(STDLIBS_HAVE_GETRPCBYNUMBER)
set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} nsl)
check_function_exists(getrpcbynumber LIBNSL_HAS_GETRPCBYNUMBER)
if(LIBNSL_HAS_GETRPCBYNUMBER)
set(HAVE_GETRPCBYNUMBER TRUE)
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} nsl)
endif(LIBNSL_HAS_GETRPCBYNUMBER)
endif(STDLIBS_HAVE_GETRPCBYNUMBER)
cmake_pop_check_state()
#
# This requires the libraries we require, as ether_ntohost 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_ntohost().
# 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 ${TCPDUMP_LINK_LIBRARIES})
check_function_exists(ether_ntohost HAVE_ETHER_NTOHOST)
if(HAVE_ETHER_NTOHOST)
#
# OK, we have ether_ntohost(). We don't check whether it's buggy,
# as we assume any system that has CMake is likely to be new enough
# that, if it has ether_ntohost(), whatever bug is checked for in
# autotools is fixed; we just decide to use it.
#
set(USE_ETHER_NTOHOST TRUE)
#
# 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_ntohost().
#
check_symbol_exists(ether_ntohost net/ethernet.h NET_ETHERNET_H_DECLARES_ETHER_NTOHOST)
if(NET_ETHERNET_H_DECLARES_ETHER_NTOHOST)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_NTOHOST TRUE)
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_NTOHOST)
#
# 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_ntohost().
#
check_symbol_exists(ether_ntohost netinet/ether.h NETINET_ETHER_H_DECLARES_ETHER_NTOHOST)
if(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_NTOHOST TRUE)
endif()
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_NTOHOST)
#
# 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_ntohost().
#
check_symbol_exists(ether_ntohost sys/ethernet.h SYS_ETHERNET_H_DECLARES_ETHER_NTOHOST)
if(SYS_ETHERNET_H_DECLARES_ETHER_NTOHOST)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_NTOHOST TRUE)
endif()
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_NTOHOST)
#
# 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_ntohost().
#
check_symbol_exists(ether_ntohost arpa/inet.h ARPA_INET_H_DECLARES_ETHER_NTOHOST)
if(ARPA_INET_H_DECLARES_ETHER_NTOHOST)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_NTOHOST TRUE)
endif()
endif()
#
# Did that succeed?
#
if(NOT HAVE_DECL_ETHER_NTOHOST)
#
# 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_ntohost().
#
check_symbol_exists(ether_ntohost "sys/types.h;sys/socket.h;net/if.h;netinet/in.h;netinet/if_ether.h" NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST)
if(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST)
#
# Yes - we have it declared.
#
set(HAVE_DECL_ETHER_NTOHOST TRUE)
endif()
endif()
#
# After all that, is ether_ntohost() declared?
#
if(NOT HAVE_DECL_ETHER_NTOHOST)
#
# No, we'll have to declare it ourselves.
# Do we have "struct ether_addr" if we include<netinet/if_ether.h>?
#
check_struct_has_member("struct ether_addr" octet "sys/types.h;sys/socket.h;net/if.h;netinet/in.h;netinet/if_ether.h" HAVE_STRUCT_ETHER_ADDR)
endif()
endif()
cmake_pop_check_state()
check_function_exists(dnet_htoa STDLIBS_HAVE_DNET_HTOA)
if(STDLIBS_HAVE_DNET_HTOA)
set(HAVE_DNET_HTOA TRUE)
else(STDLIBS_HAVE_DNET_HTOA)
check_library_exists(dnet dnet_htoa "" HAVE_DNET_HTOA)
if(HAVE_DNET_HTOA)
set(TCPDUMP_LINK_LIBRARIES dnet ${TCPDUMP_LINK_LIBRARIES})
endif(HAVE_DNET_HTOA)
endif(STDLIBS_HAVE_DNET_HTOA)
if(HAVE_DNET_HTOA)
#
# OK, we have dnet_htoa(). Do we have netdnet/dnetdb.h?
#
check_include_files("sys/types.h;netdnet/dnetdb.h" HAVE_NETDNET_DNETDB_H)
if(HAVE_NETDNET_DNETDB_H)
#
# Yes. Does it declare dnet_htoa()?
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES dnet)
check_symbol_exists(dnet_htoa "sys/types.h;netdnet/dnetdb.h" NETDNET_DNETDB_H_DECLARES_DNET_HTOA)
cmake_pop_check_state()
endif(HAVE_NETDNET_DNETDB_H)
#
# Do we have netdnet/dn.h?
#
check_include_file(netdnet/dn.h HAVE_NETDNET_DN_H)
if(HAVE_NETDNET_DN_H)
#
# Yes. Does it declare struct dn_naddr?
#
cmake_push_check_state()
set(CMAKE_EXTRA_INCLUDE_FILES netdnet/dn.h)
check_type_size("struct dn_naddr" STRUCT_DN_NADDR)
cmake_pop_check_state()
endif(HAVE_NETDNET_DN_H)
endif(HAVE_DNET_HTOA)
#
# Data types.
#
# XXX - there's no check_struct() macro that's like check_struct_has_member()
# except that it only checks for the existence of the structure type,
# so we use check_struct_has_member() and look for ss_family.
#
check_struct_has_member("struct sockaddr_storage" ss_family sys/socket.h HAVE_SOCKADDR_STORAGE)
set(CMAKE_EXTRA_INCLUDE_FILES unistd.h sys/socket.h)
check_type_size("socklen_t" SOCKLEN_T)
set(CMAKE_EXTRA_INCLUDE_FILES unistd.h)
#
# Check for IPv6 support.
# We just check for AF_INET6 and struct in6_addr.
#
cmake_push_check_state()
if(WIN32)
set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h ws2tcpip.h)
check_symbol_exists(AF_INET6 "sys/types.h;ws2tcpip.h" HAVE_AF_INET6)
else(WIN32)
set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h sys/socket.h netinet/in.h)
check_symbol_exists(AF_INET6 "sys/types.h;sys/socket.h;netinet/in.h" HAVE_AF_INET6)
endif(WIN32)
check_type_size("struct in6_addr" HAVE_STRUCT_IN6_ADDR)
cmake_pop_check_state()
if(HAVE_AF_INET6 AND HAVE_STRUCT_IN6_ADDR)
set(HAVE_OS_IPV6_SUPPORT TRUE)
endif(HAVE_AF_INET6 AND HAVE_STRUCT_IN6_ADDR)
#
# Structure fields.
#
check_struct_has_member("struct sockaddr" sa_len sys/socket.h HAVE_SOCKADDR_SA_LEN)
######################################
# External dependencies
######################################
#
# libpcap/WinPcap.
# First, find it.
#
find_package(PCAP REQUIRED)
include_directories(${PCAP_INCLUDE_DIRS})
cmake_push_check_state()
#
# Now check headers.
#
set(CMAKE_REQUIRED_INCLUDES ${PCAP_INCLUDE_DIRS})
#
# Check whether we have pcap/pcap-inttypes.h.
# If we do, we use that to get the C99 types defined.
#
check_include_file(pcap/pcap-inttypes.h HAVE_PCAP_PCAP_INTTYPES_H)
#
# Check for some headers introduced in later versions of libpcap
# and used by some printers.
#
# Those headers might use the {u_}intN_t types, so we must include
# netdissect-stdinc.h first.
#
set(CMAKE_EXTRA_INCLUDE_FILES netdissect-stdinc.h)
check_include_file(pcap/bluetooth.h HAVE_PCAP_BLUETOOTH_H)
check_include_file(pcap/nflog.h HAVE_PCAP_NFLOG_H)
cmake_pop_check_state()
#
# Check for various functions in libpcap/WinPcap.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LIBRARIES})
#
# Check for "pcap_list_datalinks()" and use a substitute version if
# it's not present. If it is present, check for "pcap_free_datalinks()";
# if it's not present, we don't replace it for now. (We could do so
# on UN*X, but not on Windows, where hilarity ensues if a program
# built with one version of the MSVC support library tries to free
# something allocated by a library built with another version of
# the MSVC support library.)
#
check_function_exists(pcap_list_datalinks HAVE_PCAP_LIST_DATALINKS)
if(HAVE_PCAP_LIST_DATALINKS)
check_function_exists(pcap_free_datalinks HAVE_PCAP_FREE_DATALINKS)
endif(HAVE_PCAP_LIST_DATALINKS)
#
# Check for "pcap_datalink_name_to_val()", and use a substitute
# version if it's not present. If it is present, check for
# "pcap_datalink_val_to_description()", and if we don't have it,
# use a substitute version.
#
check_function_exists(pcap_datalink_name_to_val HAVE_PCAP_DATALINK_NAME_TO_VAL)
if(HAVE_PCAP_DATALINK_NAME_TO_VAL)
check_function_exists(pcap_datalink_val_to_description HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION)
endif(HAVE_PCAP_DATALINK_NAME_TO_VAL)
#
# Check for "pcap_set_datalink()"; you can't substitute for it if
# it's absent (it has hooks into libpcap), so just define the
# HAVE_ value if it's there.
#
check_function_exists(pcap_set_datalink HAVE_PCAP_SET_DATALINK)
#
# Check for "pcap_breakloop()"; you can't substitute for it if
# it's absent (it has hooks into the live capture routines),
# so just define the HAVE_ value if it's there.
#
check_function_exists(pcap_breakloop HAVE_PCAP_BREAKLOOP)
#
# Check for "pcap_dump_ftell()"; we use a substitute version
# if it's not present.
#
check_function_exists(pcap_dump_ftell HAVE_PCAP_DUMP_FTELL)
#
# Do we have the new open API? Check for pcap_create() and for
# pcap_statustostr(), and assume that, if we have both of them,
# we also have pcap_activate() and the other new routines
# introduced in libpcap 1.0.0. (We check for pcap_statustostr()
# as well, because WinPcap 4.1.3 screwed up and exported pcap_create()
# but not other routines such as pcap_statustostr(), even though it
# defined them and even though you really want pcap_statustostr() to
# get strings corresponding to some of the status returns from the
# new routines.)
#
check_function_exists(pcap_statustostr HAVE_PCAP_STATUSTOSTR)
#
# If we don't have pcap_statustostr(), don't check for pcap_create(),
# so we pretend we don't have it.
#
if(HAVE_PCAP_STATUSTOSTR)
check_function_exists(pcap_create HAVE_PCAP_CREATE)
endif(HAVE_PCAP_STATUSTOSTR)
if(HAVE_PCAP_CREATE)
#
# OK, do we have pcap_set_tstamp_type? If so, assume we have
# pcap_list_tstamp_types and pcap_free_tstamp_types as well.
#
check_function_exists(pcap_set_tstamp_type HAVE_PCAP_SET_TSTAMP_TYPE)
#
# And do we have pcap_set_tstamp_precision? If so, we assume
# we also have pcap_open_offline_with_tstamp_precision.
#
check_function_exists(pcap_set_tstamp_precision HAVE_PCAP_SET_TSTAMP_PRECISION)
endif(HAVE_PCAP_CREATE)
#
# Check for a miscellaneous collection of functions which we use
# if we have them.
#
check_function_exists(pcap_findalldevs HAVE_PCAP_FINDALLDEVS)
if(HAVE_PCAP_FINDALLDEVS)
#
# Check for libpcap having pcap_findalldevs() but the pcap.h header
# not having pcap_if_t; some versions of Mac OS X shipped with pcap.h
# from 0.6 and libpcap 0.8, so that libpcap had pcap_findalldevs but
# pcap.h didn't have pcap_if_t.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES ${PCAP_INCLUDE_DIRS})
set(CMAKE_EXTRA_INCLUDE_FILES pcap.h)
check_type_size(pcap_if_t PCAP_IF_T)
cmake_pop_check_state()
endif(HAVE_PCAP_FINDALLDEVS)
check_function_exists(pcap_dump_flush HAVE_PCAP_DUMP_FLUSH)
check_function_exists(pcap_lib_version HAVE_PCAP_LIB_VERSION)
if(NOT HAVE_PCAP_LIB_VERSION)
# Check for the pcap_version string variable and set HAVE_PCAP_VERSION
endif(NOT HAVE_PCAP_LIB_VERSION)
check_function_exists(pcap_setdirection HAVE_PCAP_SETDIRECTION)
check_function_exists(pcap_set_immediate_mode HAVE_PCAP_SET_IMMEDIATE_MODE)
check_function_exists(pcap_dump_ftell64 HAVE_PCAP_DUMP_FTELL64)
check_function_exists(pcap_open HAVE_PCAP_OPEN)
check_function_exists(pcap_findalldevs_ex HAVE_PCAP_FINDALLDEVS_EX)
#
# Check for special debugging functions
#
check_function_exists(pcap_set_parser_debug HAVE_PCAP_SET_PARSER_DEBUG)
if(NOT HAVE_PCAP_SET_PARSER_DEBUG)
# Check whether libpcap defines pcap_debug or yydebug
check_variable_exists(pcap_debug HAVE_PCAP_DEBUG)
if(NOT HAVE_PCAP_DEBUG)
check_variable_exists(yydebug HAVE_YYDEBUG)
endif(NOT HAVE_PCAP_DEBUG)
endif(NOT HAVE_PCAP_SET_PARSER_DEBUG)
check_function_exists(pcap_set_optimizer_debug HAVE_PCAP_SET_OPTIMIZER_DEBUG)
check_function_exists(bpf_dump HAVE_BPF_DUMP)
cmake_pop_check_state()
#
# We have libpcap.
#
include_directories(SYSTEM ${PCAP_INCLUDE_DIRS})
set(TCPDUMP_LINK_LIBRARIES ${PCAP_LIBRARIES} ${TCPDUMP_LINK_LIBRARIES})
#
# Optional libraries.
#
#
# libsmi.
#
if(WITH_SMI)
find_package(SMI)
if(SMI_FOUND)
include_directories(SYSTEM ${SMI_INCLUDE_DIRS})
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} ${SMI_LIBRARIES})
set(USE_LIBSMI ON)
endif(SMI_FOUND)
endif(WITH_SMI)
#
# OpenSSL/libressl libcrypto.
#
if(WITH_CRYPTO)
find_package(CRYPTO)
if(CRYPTO_FOUND)
#
# Check for some functions.
#
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES crypto)
#
# 1) do we have EVP_CIPHER_CTX_new?
# If so, we use it to allocate an EVP_CIPHER_CTX, as
# EVP_CIPHER_CTX may be opaque; otherwise, we allocate
# it ourselves.
#
check_function_exists(EVP_CIPHER_CTX_new HAVE_EVP_CIPHER_CTX_NEW)
#
# 2) do we have EVP_CipherInit_ex()?
# If so, we use it, because we need to be able to make two
# "initialize the cipher" calls, one with the cipher and key,
# and one with the IV, and, as of OpenSSL 1.1, You Can't Do That
# with EVP_CipherInit(), because a call to EVP_CipherInit() will
# unconditionally clear the context, and if you don't supply a
# cipher, it'll clear the cipher, rendering the context unusable
# and causing a crash.
#
check_function_exists(EVP_CipherInit_ex HAVE_EVP_CIPHERINIT_EX)
cmake_pop_check_state()
#
# We have libcrypto.
#
include_directories(SYSTEM ${CRYPTO_INCLUDE_DIRS})
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} ${CRYPTO_LIBRARIES})
set(HAVE_LIBCRYPTO ON)
endif(CRYPTO_FOUND)
endif(WITH_CRYPTO)
#
# Capsicum sandboxing.
# Some of this is in the system library, some of it is in other libraries.
#
if(WITH_CAPSICUM)
check_function_exists(cap_enter HAVE_CAP_ENTER)
check_function_exists(cap_rights_limit HAVE_CAP_RIGHTS_LIMIT)
check_function_exists(cap_ioctls_limit HAVE_CAP_IOCTLS_LIMIT)
check_function_exists(openat HAVE_OPENAT)
if(HAVE_CAP_ENTER AND HAVE_CAP_RIGHTS_LIMIT AND
HAVE_CAP_IOCTLS_LIMIT AND HAVE_OPENAT)
#
# OK, we have the functions we need to support Capsicum.
#
set(HAVE_CAPSICUM TRUE)
#
# OK, can we use Casper?
#
check_library_exists(casper cap_init "" HAVE_CAP_INIT)
if(HAVE_CAP_INIT)
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES casper)
check_library_exists(cap_dns cap_gethostbyaddr "" HAVE_CAP_GETHOSTBYADDR)
cmake_pop_check_state()
if(HAVE_CAP_GETHOSTBYADDR)
set(HAVE_CASPER TRUE)
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} casper cap_dns)
endif(HAVE_CAP_GETHOSTBYADDR)
endif(HAVE_CAP_INIT)
endif(HAVE_CAP_ENTER AND HAVE_CAP_RIGHTS_LIMIT AND
HAVE_CAP_IOCTLS_LIMIT AND HAVE_OPENAT)
endif(WITH_CAPSICUM)
#
# libcap-ng.
#
if(WITH_CAP_NG)
check_include_file(cap-ng.h HAVE_CAP_NG_H)
check_library_exists(cap-ng capng_change_id "" HAVE_LIBCAP_NG)
if(HAVE_LIBCAP_NG)
set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} cap-ng)
endif(HAVE_LIBCAP_NG)
endif(WITH_CAP_NG)
######################################
# Input files
######################################
if(ENABLE_SMB)
#
# We allow the SMB dissector to be omitted.
#
set(LOCALSRC ${LOCALSRC}
print-smb.c
smbutil.c)
endif(ENABLE_SMB)
set(NETDISSECT_SOURCE_LIST_C
addrtoname.c
addrtostr.c
af.c
ascii_strcasecmp.c
checksum.c
cpack.c
gmpls.c
gmt2local.c
in_cksum.c
ipproto.c
l2vpn.c
machdep.c
nlpid.c
oui.c
parsenfsfh.c
print.c
print-802_11.c
print-802_15_4.c
print-ah.c
print-ahcp.c
print-aodv.c
print-aoe.c
print-ap1394.c
print-arcnet.c
print-arp.c
print-ascii.c
print-atalk.c
print-atm.c
print-babel.c
print-beep.c
print-bfd.c
print-bgp.c
print-bootp.c
print-bt.c
print-calm-fast.c
print-carp.c
print-cdp.c
print-cfm.c
print-chdlc.c
print-cip.c
print-cnfp.c
print-dccp.c
print-decnet.c
print-dhcp6.c
print-domain.c
print-dtp.c
print-dvmrp.c
print-eap.c
print-egp.c
print-eigrp.c
print-enc.c
print-esp.c
print-ether.c
print-fddi.c
print-forces.c
print-fr.c
print-frag6.c
print-ftp.c
print-geneve.c
print-geonet.c
print-gre.c
print-hncp.c
print-hsrp.c
print-http.c
print-icmp.c
print-icmp6.c
print-igmp.c
print-igrp.c
print-ip.c
print-ip6.c
print-ip6opts.c
print-ipcomp.c
print-ipfc.c
print-ipnet.c
print-ipx.c
print-isakmp.c
print-isoclns.c
print-juniper.c
print-krb.c
print-l2tp.c
print-lane.c
print-ldp.c
print-lisp.c
print-llc.c
print-lldp.c
print-lmp.c
print-loopback.c
print-lspping.c
print-lwapp.c
print-lwres.c
print-m3ua.c
print-medsa.c
print-mobile.c
print-mobility.c
print-mpcp.c
print-mpls.c
print-mptcp.c
print-msdp.c
print-msnlb.c
print-nflog.c
print-nfs.c
print-nsh.c
print-ntp.c
print-null.c
print-olsr.c
print-openflow-1.0.c
print-openflow.c
print-ospf.c
print-ospf6.c
print-otv.c
print-pgm.c
print-pim.c
print-pktap.c
print-ppi.c
print-ppp.c
print-pppoe.c
print-pptp.c
print-radius.c
print-raw.c
print-resp.c
print-rip.c
print-ripng.c
print-rpki-rtr.c
print-rrcp.c
print-rsvp.c
print-rt6.c
print-rtsp.c
print-rx.c
print-sctp.c
print-sflow.c
print-sip.c
print-sl.c
print-sll.c
print-slow.c
print-smtp.c
print-snmp.c
print-stp.c
print-sunatm.c
print-sunrpc.c
print-symantec.c
print-syslog.c
print-tcp.c
print-telnet.c
print-tftp.c
print-timed.c
print-tipc.c
print-token.c
print-udld.c
print-udp.c
print-usb.c
print-vjc.c
print-vqp.c
print-vrrp.c
print-vtp.c
print-vxlan.c
print-vxlan-gpe.c
print-wb.c
print-zephyr.c
print-zeromq.c
${LOCALSRC}
netdissect.c
signature.c
strtoaddr.c
util-print.c
)
#
# Replace missing functions
#
foreach(FUNC strlcat strlcpy strdup strsep getservent getopt_long)
string(TOUPPER ${FUNC} FUNC_UPPERCASE)
set(HAVE_FUNC_UPPERCASE HAVE_${FUNC_UPPERCASE})
if(NOT ${HAVE_FUNC_UPPERCASE})
set(NETDISSECT_SOURCE_LIST_C ${NETDISSECT_SOURCE_LIST_C} missing/${FUNC}.c)
endif()
endforeach()
if(NOT HAVE_VSNPRINTF OR NOT HAVE_SNPRINTF)
if(WIN32)
set(NETDISSECT_SOURCE_LIST_C ${NETDISSECT_SOURCE_LIST_C} missing/win_snprintf.c)
else(WIN32)
set(NETDISSECT_SOURCE_LIST_C ${NETDISSECT_SOURCE_LIST_C} missing/snprintf.c)
endif(WIN32)
endif(NOT HAVE_VSNPRINTF OR NOT HAVE_SNPRINTF)
add_library(netdissect STATIC
${NETDISSECT_SOURCE_LIST_C}
)
set(TCPDUMP_SOURCE_LIST_C tcpdump.c)
if(NOT HAVE_BPF_DUMP)
set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} bpf_dump.c)
endif(NOT HAVE_BPF_DUMP)
if(NOT HAVE_PCAP_DUMP_FTELL)
set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} missing/pcap_dump_ftell.c)
endif(NOT HAVE_PCAP_DUMP_FTELL)
if(NOT HAVE_PCAP_LIST_DATALINKS)
set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} missing/datalinks.c)
endif(NOT HAVE_PCAP_LIST_DATALINKS)
if((NOT HAVE_PCAP_DATALINK_NAME_TO_VAL) OR (NOT HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION))
set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} missing/dlnames.c)
endif((NOT HAVE_PCAP_DATALINK_NAME_TO_VAL) OR (NOT HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION))
set(PROJECT_SOURCE_LIST_C ${NETDISSECT_SOURCE_LIST_C} ${TCPDUMP_SOURCE_LIST_C})
file(GLOB PROJECT_SOURCE_LIST_H
*.h
)
source_group("Source Files" FILES ${PROJECT_SOURCE_LIST_C})
source_group("Header Files" FILES ${PROJECT_SOURCE_LIST_H})
######################################
# Register targets
######################################
add_executable(tcpdump ${TCPDUMP_SOURCE_LIST_C})
target_link_libraries(tcpdump netdissect ${TCPDUMP_LINK_LIBRARIES})
######################################
# Write out the config.h file
######################################
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmakeconfig.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)
######################################
# Install tcpdump 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(MAN1_EXPAND tcpdump.1.in)
if(WIN32)
# XXX TODO where to install on Windows?
else(WIN32)
install(TARGETS tcpdump DESTINATION sbin)
endif(WIN32)
# On UN*X, and on Windows when not using MSVC, process man pages and
# arrange that they be installed.
if(NOT MSVC)
#
# Man pages.
#
# For each section of the manual for which we have man pages
# that require macro expansion, do the expansion.
#
set(MAN1 "")
foreach(TEMPLATE_MANPAGE ${MAN1_EXPAND})
string(REPLACE ".in" "" MANPAGE ${TEMPLATE_MANPAGE})
configure_file(${CMAKE_SOURCE_DIR}/${TEMPLATE_MANPAGE} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE} @ONLY)
set(MAN1 ${MAN1} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE})
endforeach(TEMPLATE_MANPAGE)
install(FILES ${MAN1} DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
endif(NOT MSVC)
# uninstall target
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
IMMEDIATE @ONLY)
add_custom_target(uninstall
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
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