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pcg |
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dnl Process this file with autoconf to produce a configure script. |
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AC_PREREQ(2.57) |
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AC_INIT(src/vped.C) |
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AC_CANONICAL_TARGET |
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AM_INIT_AUTOMAKE(vpe, 0.1) |
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AM_CONFIG_HEADER(config.h) |
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AM_MAINTAINER_MODE |
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AH_TOP([ |
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#ifndef CONFIG_H__ |
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#define CONFIG_H__ |
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#ifdef __cplusplus |
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using namespace std; |
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#endif |
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]) |
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AH_BOTTOM([ |
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#if __CYGWIN__ |
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typedef unsigned char u8; |
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typedef unsigned short u16; |
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typedef unsigned int u32; |
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#else |
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#include <inttypes.h> |
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/* old modula-2 habits */ |
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typedef unsigned char u8; |
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typedef uint16_t u16; |
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typedef uint32_t u32; |
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#endif |
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#endif |
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]) |
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dnl Include the macros from the m4/ directory |
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AM_ACLOCAL_INCLUDE(m4) |
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AM_GNU_GETTEXT([external]) |
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AM_GNU_GETTEXT_VERSION(0.11.5) |
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# Enable GNU extensions. |
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# Define this here, not in acconfig's @TOP@ section, since definitions |
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# in the latter don't make it into the configure-time tests. |
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AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions]) |
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AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions]) |
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ALL_LINGUAS="" |
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dnl Checks for programs. |
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AC_PROG_CC |
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AC_PROG_CPP |
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AC_PROG_CXX |
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AC_PROG_GCC_TRADITIONAL |
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AC_PROG_AWK |
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AC_PROG_INSTALL |
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AC_PROG_LN_S |
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AC_PROG_MAKE_SET |
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AC_PROG_RANLIB |
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AC_ISC_POSIX |
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m4_if([ |
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dnl Check and set OS |
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case $target_os in |
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*linux*) |
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AC_DEFINE(HAVE_LINUX, 1, [Linux]) |
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[ rm -f src/device.c; ln -sf linux/device.c src/device.c ] |
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;; |
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*freebsd*) |
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AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD]) |
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[ rm -f src/device.c; ln -sf freebsd/device.c src/device.c ] |
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;; |
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*darwin*) |
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AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)]) |
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[ rm -f src/device.c; ln -sf darwin/device.c src/device.c ] |
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;; |
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*solaris*) |
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AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS]) |
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[ rm -f src/device.c; ln -sf solaris/device.c src/device.c ] |
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;; |
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*openbsd*) |
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AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD]) |
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[ rm -f src/device.c; ln -sf openbsd/device.c src/device.c ] |
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;; |
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*netbsd*) |
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AC_DEFINE(HAVE_NETBSD, 1, [NetBSD]) |
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[ rm -f src/device.c; ln -sf netbsd/device.c src/device.c ] |
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;; |
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*cygwin*) |
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AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin]) |
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[ rm -f src/device.c; ln -sf cygwin/device.c src/device.c ] |
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;; |
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*) |
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AC_MSG_ERROR("Unknown operating system.") |
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;; |
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esac |
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]) |
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AC_CACHE_SAVE |
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dnl Checks for libraries. |
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AC_LANG(C++) |
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AC_CHECK_HEADERS(ext/hash_map) |
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dnl Checks for header files. |
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AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \ |
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sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h cygwin.h]) |
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AC_CHECK_HEADERS([net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h], [], [], |
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[#include <sys/types.h> |
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#include <sys/socket.h> |
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#ifdef HAVE_NETINET_IN_SYSTM_H |
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#include <netinet/in_systm.h> |
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#endif]) |
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dnl Checks for typedefs, structures, and compiler characteristics. |
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AC_C_CONST |
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AC_TYPE_PID_T |
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AC_TYPE_SIZE_T |
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AC_HEADER_TIME |
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AC_STRUCT_TM |
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AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t, |
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[ |
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AC_TRY_COMPILE( |
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[#include <sys/types.h> |
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#include <sys/socket.h>], |
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[socklen_t len = 42; return len;], |
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ac_cv_type_socklen_t=yes, |
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ac_cv_type_socklen_t=no) |
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]) |
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if test $ac_cv_type_socklen_t = yes; then |
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AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available]) |
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fi |
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AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo, |
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[ |
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AC_TRY_COMPILE( |
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[#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netdb.h>], |
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[struct addrinfo ai; ai.ai_family = AF_INET; return ai.ai_family;], |
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ac_cv_struct_addrinfo=yes, |
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ac_cv_struct_addrinfo=no) |
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]) |
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if test $ac_cv_struct_addrinfo = yes; then |
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AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available]) |
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fi |
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dnl Checks for library functions. |
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AC_TYPE_SIGNAL |
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AC_LANG_PUSH(C) |
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AC_HEADER_STDC |
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AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall) |
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AC_FUNC_ALLOCA |
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dnl Support for SunOS |
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AC_CHECK_FUNC(socket, [], [ |
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AC_CHECK_LIB(socket, connect) |
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]) |
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AC_CHECK_FUNC(gethostbyname, [], [ |
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AC_CHECK_LIB(nsl, gethostbyname) |
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]) |
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AC_LANG_POP |
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dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo]) |
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AC_CACHE_SAVE |
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dnl These are defined in files in m4/ |
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tinc_TUNTAP |
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tinc_OPENSSL |
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dnl tinc_ZLIB |
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HMAC=16 dnl see also the AC_HELP_STRING |
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AC_ARG_ENABLE(hmac-length, |
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[AC_HELP_STRING(--enable-hmac-length=BYTES, [use a hmac of length BYTES bytes (default 16). Allowed values are 4, 8, 12, 16.])], |
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HMAC=$enableval |
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) |
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AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) |
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RAND=8 dnl see also the AC_HELP_STRING |
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AC_ARG_ENABLE(rand-length, |
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[AC_HELP_STRING(--enable-rand-length=BYTES, [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])], |
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RAND=$enableval |
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) |
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AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.]) |
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MTU=1500 dnl see also the AC_HELP_STRING |
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AC_ARG_ENABLE(mtu, |
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[AC_HELP_STRING(--enable-max-mtu=BYTES, enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], |
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MTU=$enableval |
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) |
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AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) |
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COMPRESS=1 |
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AC_ARG_ENABLE(compression, |
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[AC_HELP_STRING(--disable-compression, Disable compression support.)], |
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if test "x$enableval" = xno; then |
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COMPRESS=0 |
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fi |
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) |
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AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) |
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CIPHER=bf_cbc |
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AC_ARG_ENABLE(cipher, |
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[AC_HELP_STRING(--enable-cipher, [ |
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Select the symmetric cipher (default "bf"). Must be one of |
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"bf" (blowfish), "aes-128", "aes-192" or "aes-256".])], |
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if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi |
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if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi |
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if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi |
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if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi |
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) |
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AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) |
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DIGEST=sha1 |
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AC_ARG_ENABLE(digest, |
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[AC_HELP_STRING(--enable-digest, [ |
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Select the digets algorithm to use (default "sha1"). Must be one of |
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"sha1", "ripemd160", "md4" or "md5".])], |
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if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi |
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if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi |
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if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi |
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if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi |
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) |
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AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) |
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TRUST=1 |
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m4_if([ |
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AC_ARG_ENABLE(trust, |
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[AC_HELP_STRING(--enable-trust, [ |
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Make authentication faster but allow decoding by all hosts of a VPN. |
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Use this when the VPN hosts DO trust each other and you don't care |
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wether man-in-the-middle sniffing attacks are possible by admins |
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of other VPN hosts. On pentiums or similar machines this can cut down |
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the time for reconnects by 0.4 seconds or more.])], |
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if test "x$enableval" = xyes; then |
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TRUST=1 |
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fi |
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) |
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]) |
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AC_DEFINE_UNQUOTED(ENABLE_TRUST, $TRUST, [Faster, but VPN hosts may sniff each others data.]) |
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if $CXX -v --help 2>&1 | grep -q fno-rtti; then |
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CXXFLAGS="$CXXFLAGS -fno-rtti" |
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fi |
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if $CXX -v --help 2>&1 | grep -q fexceptions; then |
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CXXFLAGS="$CXXFLAGS -fno-exceptions" |
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fi |
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if $CXX -v --help 2>&1 | grep -q ffunction-sections; then |
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CXXFLAGS="$CXXFLAGS -ffunction-sections" |
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fi |
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if $LD -v --help 2>&1 | grep -q gc-sections; then |
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LDFLAGS="$LDFLAGS -Wl,--gc-sections" |
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fi |
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AC_CONFIG_COMMANDS_POST([ |
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echo |
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echo "***" |
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echo "*** Configuration Summary" |
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echo "***" |
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echo "*** Cipher used: $CIPHER" |
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echo "*** Digest used: $DIGEST" |
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echo "*** HMAC length: $HMAC" |
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echo "*** RAND used: $RAND" |
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echo "*** Max. MTU: $MTU" |
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echo "*** Compression: $COMPRESS" |
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dnl echo "*** Trusted Mode: $TRUST" |
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echo "***" |
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echo |
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]) |
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AC_SUBST(INCLUDES) |
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AC_OUTPUT(Makefile po/Makefile.in |
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src/Makefile |
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doc/Makefile |
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lib/Makefile |
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m4/Makefile |
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) |
