dnl Process this file with autoconf to produce a configure script. AC_PREREQ([2.71]) AC_INIT([gvpe],[3.1]) AC_CONFIG_SRCDIR([src/gvpe.C]) AC_CANONICAL_TARGET AM_INIT_AUTOMAKE AC_CONFIG_HEADERS([config.h]) AM_MAINTAINER_MODE AH_TOP([ #ifndef CONFIG_H__ #define CONFIG_H__ #ifdef __cplusplus using namespace std; #endif ]) AH_BOTTOM([ typedef unsigned char u8; typedef signed char s8; #if __CYGWIN__ typedef unsigned short u16; typedef unsigned int u32; typedef signed short s16; typedef signed int s32; #else #include /* old modula-2 habits */ typedef uint16_t u16; typedef uint32_t u32; typedef int16_t s16; typedef int32_t s32; #endif #endif #if HAVE_CLOCALE # define CLOCALE #else # define CLOCALE #endif ]) AM_GNU_GETTEXT([external]) AM_GNU_GETTEXT_VERSION(0.11.5) # Enable GNU extensions. # Define this here, not in acconfig's @TOP@ section, since definitions # in the latter don't make it into the configure-time tests. AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extensions]) # do NOT define POSIX_SOURCE, sicne this clashes with many BSDs dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions]) dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions]) ALL_LINGUAS="" dnl Checks for programs. AC_PROG_CPP AC_PROG_CXX AC_PROG_GCC_TRADITIONAL AC_PROG_AWK AC_PROG_INSTALL AC_PROG_LN_S AC_PROG_MAKE_SET AC_PROG_RANLIB AC_ARG_ENABLE(iftype, [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE, Use kernel/net device interface TYPE/SUBTYPE. Working combinations are (see doc/gvpe.osdep.5.pod): "native/linux" "tincd/linux" "tincd/netbsd" "tincd/freebsd" "tincd/openbsd" "native/darwin" "tincd/darwin" "native/cygwin"; Untested combinations are: "tincd/bsd" "tincd/solaris" "tincd/mingw" "tincd/raw_socket" "tincd/uml_socket"; Broken combinations are: "tincd/cygwin"; The default is to autodetect. )], [ IFTYPE=`echo $enableval | sed s%/.*%%` IFSUBTYPE=`echo $enableval | sed s%.*/%%` ] ) dnl Check and set OS AC_MSG_CHECKING(for kernel networking interface type) if test "x$IFTYPE" = "x"; then case $target_os in *linux*) IFTYPE=native IFSUBTYPE=linux AC_DEFINE(HAVE_LINUX, 1, [Linux]) ;; *freebsd*) IFTYPE=tincd IFSUBTYPE=freebsd AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD]) ;; *darwin*) IFTYPE=native IFSUBTYPE=darwin AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)]) ;; *solaris*) IFTYPE=tincd IFSUBTYPE=solaris AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS]) ;; *openbsd*) IFTYPE=tincd IFSUBTYPE=openbsd AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD]) ;; *netbsd*) IFTYPE=tincd IFSUBTYPE=netbsd AC_DEFINE(HAVE_NETBSD, 1, [NetBSD]) ;; *cygwin*) IFTYPE=native IFSUBTYPE=cygwin AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin]) ;; *) AC_MSG_ERROR("Unknown operating system.") ;; esac fi AC_MSG_RESULT($IFTYPE/$IFSUBTYPE) AC_SUBST(IFTYPE,$IFTYPE) AC_SUBST(IFSUBTYPE,$IFSUBTYPE) AC_DEFINE_UNQUOTED(IFTYPE,"$IFTYPE",[kernel interface type]) AC_DEFINE_UNQUOTED(IFSUBTYPE,"$IFSUBTYPE",[kernel interface subtype]) AC_CACHE_SAVE dnl Checks for libraries. AC_LANG(C++) AC_CHECK_HEADERS(tr1/unordered_map ext/hash_map clocale) dnl Checks for header files. AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \ sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \ sys/mman.h netinet/in.h]) AC_CHECK_HEADERS([arpa/inet.h net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h netinet/in_systm.h], [], [], [ #include #include #ifdef HAVE_NETINET_IN_H # include #endif #ifdef HAVE_ARPA_INET_H # include #endif #ifdef HAVE_NETINET_IN_SYSTM_H # include #endif ]) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_TYPE_PID_T AC_TYPE_SIZE_T AC_CHECK_HEADERS_ONCE([sys/time.h]) AC_STRUCT_TM AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t, [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include #include ]], [[socklen_t len = 42; return len;]])],[ac_cv_type_socklen_t=yes],[ac_cv_type_socklen_t=no]) ]) if test $ac_cv_type_socklen_t = yes; then AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available]) fi AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo, [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include #include #include ]], [[struct addrinfo ai; ai.ai_family = AF_INET; return ai.ai_family;]])],[ac_cv_struct_addrinfo=yes],[ac_cv_struct_addrinfo=no]) ]) if test $ac_cv_struct_addrinfo = yes; then AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available]) fi AC_LANG_PUSH(C) dnl argl, could somebody catapult darwin into the 21st century??? AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall) AC_FUNC_ALLOCA dnl Support for SunOS AC_CHECK_FUNC(socket, [], [ AC_CHECK_LIB(socket, connect) ]) AC_CHECK_FUNC(gethostbyname, [], [ AC_CHECK_LIB(nsl, gethostbyname) ]) dnl libev support m4_include([libev/libev.m4]) AC_LANG_POP dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo]) AC_CACHE_SAVE dnl These are defined in files in m4/ tinc_TUNTAP PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1]) AC_ARG_ENABLE(threads, [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)], [try_threads=$enableval], [try_threads=yes] ) if test "x$try_threads" = xyes; then AC_CHECK_HEADER(pthread.h,[ LIBS="$LIBS -lpthread" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([#include ], [pthread_t id; pthread_create (&id, 0, 0, 0);])], [AC_DEFINE_UNQUOTED(ENABLE_PTHREADS, 1, [POSIX thread support.])] ) ]) fi AC_ARG_ENABLE(static-daemon, [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)], [LDFLAGS_DAEMON=-static] ) AC_SUBST(LDFLAGS_DAEMON) dnl AC_ARG_ENABLE(rohc, dnl [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)], dnl [ dnl echo dnl echo "**********************************************************************" dnl echo "**********************************************************************" dnl echo "**** --enable-rohc is highly experimental, do not use ****************" dnl echo "**********************************************************************" dnl echo "**********************************************************************" dnl echo dnl rohc=true dnl AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support]) dnl ] dnl ) AM_CONDITIONAL(ROHC, test x$rohc = xtrue) dnl AC_ARG_ENABLE(bridging, dnl [AS_HELP_STRING(--enable-bridging,enable bridging support (default disabled).)], dnl AC_DEFINE_UNQUOTED(ENABLE_BRIDGING, 1, [bridging support.]) dnl ) ICMP=1 AC_ARG_ENABLE(icmp, [AS_HELP_STRING(--disable-icmp,enable icmp protocol support (default enabled).)], if test "x$enableval" = xno; then ICMP=0 fi ) if test "x$ICMP" = x1; then AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.]) fi TCP=1 AC_ARG_ENABLE(tcp, [AS_HELP_STRING(--disable-tcp,enable tcp protocol support (default enabled).)], if test "x$enableval" = xno; then TCP=0 fi ) if test "x$TCP" = x1; then AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.]) fi HTTP=1 AC_ARG_ENABLE(http-proxy, [AS_HELP_STRING(--disable-http-proxy,enable http proxy connect support (default enabled).)], if test "x$enableval" = xno; then HTTP=0 fi ) if test "x$HTTP" = x1; then AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.]) fi AC_ARG_ENABLE(dns, [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (default disabled).)], [ AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])]) AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])]) AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.]) ] ) RSA=3072 AC_ARG_ENABLE(rsa-length, [AS_HELP_STRING(--enable-rsa-length=BITS,[ use BITS rsa keys (default 3072). Allowed values are 2048-10240.])], RSA=$enableval ) AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.]) HMACSIZE=12 AC_ARG_ENABLE(hmac-length, [AS_HELP_STRING(--enable-hmac-length=BYTES,[ use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], HMACSIZE=$enableval ) AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.]) MTU=1500 AC_ARG_ENABLE(max-mtu, [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], MTU=$enableval ) AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.]) COMPRESS=1 AC_ARG_ENABLE(compression, [AS_HELP_STRING(--disable-compression,Disable compression support.)], if test "x$enableval" = xno; then COMPRESS=0 fi ) AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) CIPHER=aes_128_ctr AC_ARG_ENABLE(cipher, [AS_HELP_STRING(--enable-cipher=CIPHER,[ Select the symmetric cipher (default "aes-128"). Must be one of "aes-128" (rijndael), "aes-192", or "aes-256".])], #if test "x$enableval" = xbf ; then CIPHER=bf_ctr ; fi if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_ctr ; fi if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_ctr ; fi if test "x$enableval" = xaes-256 ; then CIPHER=aes_256_ctr ; fi #if test "x$enableval" = xcamellia-128; then CIPHER=camellia_128_ctr; fi #if test "x$enableval" = xcamellia-256; then CIPHER=camellia_256_ctr; fi ) AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) HMAC=sha1 AC_ARG_ENABLE(hmac-digest, [AS_HELP_STRING(--enable-hmac-digest=HMAC,[ Select the HMAC digest algorithm to use (default "sha1"). Must be one of "sha512", "sha256", "sha1", "ripemd160", "whirlpool".])], if test "x$enableval" = xwhirlpool; then HMAC=whirlpool; fi if test "x$enableval" = xsha512 ; then HMAC=sha512 ; fi if test "x$enableval" = xsha256 ; then HMAC=sha256 ; fi if test "x$enableval" = xsha1 ; then HMAC=sha1 ; fi if test "x$enableval" = xripemd160; then HMAC=ripemd160; fi ) AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.]) AUTH=sha512 AC_ARG_ENABLE(auth-digest, [AS_HELP_STRING(--enable-auth-digest=DIGEST,[ Select the hmac algorithm to use (default "sha512"). Must be one of "sha512", "sha256", "whirlpool".])], if test "x$enableval" = xwhirlpool; then AUTH=whirlpool; fi if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi ) AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.]) if $CXX -v --help 2>&1 | grep -q fno-rtti; then CXXFLAGS="$CXXFLAGS -fno-rtti" fi #if $CXX -v --help 2>&1 | grep -q fexceptions; then # CXXFLAGS="$CXXFLAGS -fno-exceptions" #fi LIBS="$EXTRA_LIBS $LIBS" dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" dnl fi dnl dnl if $LD -v --help 2>&1 | grep -q gc-sections; then dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" dnl fi AC_SUBST(AM_CPPFLAGS) AC_CONFIG_FILES([Makefile po/Makefile.in src/Makefile doc/Makefile lib/Makefile m4/Makefile ]) AC_OUTPUT echo echo "***" echo "*** Configuration Summary" echo "***" echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE" echo "*** RSA size: $RSA" echo "*** Cipher used: $CIPHER" echo "*** Digest used: $DIGEST" echo "*** Authdigest: $AUTH" echo "*** HMAC length: $HMAC" echo "*** Max. MTU: $MTU" echo "***" echo "*** Enable options:" grep ENABLE_ config.h | sed -e 's/^/*** /' if test "$HMACSIZE" -lt 12; then echo "***" echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure" fi echo "***" echo if pkg-config --exists 'libcrypto >= 1.1 libcrypto < 2.0'; then cat <