| 1 |
dnl Process this file with autoconf to produce a configure script. |
| 2 |
|
| 3 |
AC_PREREQ(2.57) |
| 4 |
AC_INIT(src/vped.C) |
| 5 |
AC_CANONICAL_TARGET |
| 6 |
AM_INIT_AUTOMAKE(vpe, 0.1) |
| 7 |
AM_CONFIG_HEADER(config.h) |
| 8 |
AM_MAINTAINER_MODE |
| 9 |
|
| 10 |
AH_TOP([ |
| 11 |
#ifndef CONFIG_H__ |
| 12 |
#define CONFIG_H__ |
| 13 |
|
| 14 |
#ifdef __cplusplus |
| 15 |
using namespace std; |
| 16 |
#endif |
| 17 |
|
| 18 |
]) |
| 19 |
|
| 20 |
AH_BOTTOM([ |
| 21 |
#if __CYGWIN__ |
| 22 |
|
| 23 |
typedef unsigned char u8; |
| 24 |
typedef unsigned short u16; |
| 25 |
typedef unsigned int u32; |
| 26 |
|
| 27 |
#else |
| 28 |
#include <inttypes.h> |
| 29 |
|
| 30 |
/* old modula-2 habits */ |
| 31 |
typedef unsigned char u8; |
| 32 |
typedef uint16_t u16; |
| 33 |
typedef uint32_t u32; |
| 34 |
#endif |
| 35 |
|
| 36 |
#endif |
| 37 |
]) |
| 38 |
|
| 39 |
dnl Include the macros from the m4/ directory |
| 40 |
AM_ACLOCAL_INCLUDE(m4) |
| 41 |
|
| 42 |
AM_GNU_GETTEXT([external]) |
| 43 |
AM_GNU_GETTEXT_VERSION(0.11.5) |
| 44 |
|
| 45 |
# Enable GNU extensions. |
| 46 |
# Define this here, not in acconfig's @TOP@ section, since definitions |
| 47 |
# in the latter don't make it into the configure-time tests. |
| 48 |
AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions]) |
| 49 |
AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions]) |
| 50 |
|
| 51 |
ALL_LINGUAS="" |
| 52 |
|
| 53 |
dnl Checks for programs. |
| 54 |
AC_PROG_CC |
| 55 |
AC_PROG_CPP |
| 56 |
AC_PROG_CXX |
| 57 |
AC_PROG_GCC_TRADITIONAL |
| 58 |
AC_PROG_AWK |
| 59 |
AC_PROG_INSTALL |
| 60 |
AC_PROG_LN_S |
| 61 |
AC_PROG_MAKE_SET |
| 62 |
AC_PROG_RANLIB |
| 63 |
|
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AC_ISC_POSIX |
| 65 |
|
| 66 |
m4_if([ |
| 67 |
dnl Check and set OS |
| 68 |
|
| 69 |
case $target_os in |
| 70 |
*linux*) |
| 71 |
AC_DEFINE(HAVE_LINUX, 1, [Linux]) |
| 72 |
[ rm -f src/device.c; ln -sf linux/device.c src/device.c ] |
| 73 |
;; |
| 74 |
*freebsd*) |
| 75 |
AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD]) |
| 76 |
[ rm -f src/device.c; ln -sf freebsd/device.c src/device.c ] |
| 77 |
;; |
| 78 |
*darwin*) |
| 79 |
AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)]) |
| 80 |
[ rm -f src/device.c; ln -sf darwin/device.c src/device.c ] |
| 81 |
;; |
| 82 |
*solaris*) |
| 83 |
AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS]) |
| 84 |
[ rm -f src/device.c; ln -sf solaris/device.c src/device.c ] |
| 85 |
;; |
| 86 |
*openbsd*) |
| 87 |
AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD]) |
| 88 |
[ rm -f src/device.c; ln -sf openbsd/device.c src/device.c ] |
| 89 |
;; |
| 90 |
*netbsd*) |
| 91 |
AC_DEFINE(HAVE_NETBSD, 1, [NetBSD]) |
| 92 |
[ rm -f src/device.c; ln -sf netbsd/device.c src/device.c ] |
| 93 |
;; |
| 94 |
*cygwin*) |
| 95 |
AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin]) |
| 96 |
[ rm -f src/device.c; ln -sf cygwin/device.c src/device.c ] |
| 97 |
;; |
| 98 |
*) |
| 99 |
AC_MSG_ERROR("Unknown operating system.") |
| 100 |
;; |
| 101 |
esac |
| 102 |
]) |
| 103 |
|
| 104 |
AC_CACHE_SAVE |
| 105 |
|
| 106 |
dnl Checks for libraries. |
| 107 |
|
| 108 |
AC_LANG(C++) |
| 109 |
AC_CHECK_HEADERS(ext/hash_map) |
| 110 |
|
| 111 |
dnl Checks for header files. |
| 112 |
AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \ |
| 113 |
sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h cygwin.h]) |
| 114 |
AC_CHECK_HEADERS([net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h], [], [], |
| 115 |
[#include <sys/types.h> |
| 116 |
#include <sys/socket.h> |
| 117 |
#ifdef HAVE_NETINET_IN_SYSTM_H |
| 118 |
#include <netinet/in_systm.h> |
| 119 |
#endif]) |
| 120 |
|
| 121 |
dnl Checks for typedefs, structures, and compiler characteristics. |
| 122 |
AC_C_CONST |
| 123 |
AC_TYPE_PID_T |
| 124 |
AC_TYPE_SIZE_T |
| 125 |
AC_HEADER_TIME |
| 126 |
AC_STRUCT_TM |
| 127 |
|
| 128 |
AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t, |
| 129 |
[ |
| 130 |
AC_TRY_COMPILE( |
| 131 |
[#include <sys/types.h> |
| 132 |
#include <sys/socket.h>], |
| 133 |
[socklen_t len = 42; return len;], |
| 134 |
ac_cv_type_socklen_t=yes, |
| 135 |
ac_cv_type_socklen_t=no) |
| 136 |
]) |
| 137 |
if test $ac_cv_type_socklen_t = yes; then |
| 138 |
AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available]) |
| 139 |
fi |
| 140 |
|
| 141 |
AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo, |
| 142 |
[ |
| 143 |
AC_TRY_COMPILE( |
| 144 |
[#include <sys/types.h> |
| 145 |
#include <sys/socket.h> |
| 146 |
#include <netdb.h>], |
| 147 |
[struct addrinfo ai; ai.ai_family = AF_INET; return ai.ai_family;], |
| 148 |
ac_cv_struct_addrinfo=yes, |
| 149 |
ac_cv_struct_addrinfo=no) |
| 150 |
]) |
| 151 |
if test $ac_cv_struct_addrinfo = yes; then |
| 152 |
AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available]) |
| 153 |
fi |
| 154 |
|
| 155 |
dnl Checks for library functions. |
| 156 |
AC_TYPE_SIGNAL |
| 157 |
|
| 158 |
AC_LANG_PUSH(C) |
| 159 |
|
| 160 |
AC_HEADER_STDC |
| 161 |
|
| 162 |
AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall) |
| 163 |
|
| 164 |
AC_FUNC_ALLOCA |
| 165 |
|
| 166 |
dnl Support for SunOS |
| 167 |
|
| 168 |
AC_CHECK_FUNC(socket, [], [ |
| 169 |
AC_CHECK_LIB(socket, connect) |
| 170 |
]) |
| 171 |
AC_CHECK_FUNC(gethostbyname, [], [ |
| 172 |
AC_CHECK_LIB(nsl, gethostbyname) |
| 173 |
]) |
| 174 |
|
| 175 |
AC_LANG_POP |
| 176 |
|
| 177 |
dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo]) |
| 178 |
|
| 179 |
AC_CACHE_SAVE |
| 180 |
|
| 181 |
dnl These are defined in files in m4/ |
| 182 |
tinc_TUNTAP |
| 183 |
tinc_OPENSSL |
| 184 |
dnl tinc_ZLIB |
| 185 |
|
| 186 |
HMAC=16 dnl see also the AC_HELP_STRING |
| 187 |
AC_ARG_ENABLE(hmac-length, |
| 188 |
[AC_HELP_STRING(--enable-hmac-length=BYTES, [use a hmac of length BYTES bytes (default 16). Allowed values are 4, 8, 12, 16.])], |
| 189 |
HMAC=$enableval |
| 190 |
) |
| 191 |
AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) |
| 192 |
|
| 193 |
RAND=8 dnl see also the AC_HELP_STRING |
| 194 |
AC_ARG_ENABLE(rand-length, |
| 195 |
[AC_HELP_STRING(--enable-rand-length=BYTES, [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])], |
| 196 |
RAND=$enableval |
| 197 |
) |
| 198 |
AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.]) |
| 199 |
|
| 200 |
MTU=1500 dnl see also the AC_HELP_STRING |
| 201 |
AC_ARG_ENABLE(mtu, |
| 202 |
[AC_HELP_STRING(--enable-max-mtu=BYTES, enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], |
| 203 |
MTU=$enableval |
| 204 |
) |
| 205 |
AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) |
| 206 |
|
| 207 |
COMPRESS=1 |
| 208 |
AC_ARG_ENABLE(compression, |
| 209 |
[AC_HELP_STRING(--disable-compression, Disable compression support.)], |
| 210 |
if test "x$enableval" = xno; then |
| 211 |
COMPRESS=0 |
| 212 |
fi |
| 213 |
) |
| 214 |
AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) |
| 215 |
|
| 216 |
CIPHER=bf_cbc |
| 217 |
AC_ARG_ENABLE(cipher, |
| 218 |
[AC_HELP_STRING(--enable-cipher, [ |
| 219 |
Select the symmetric cipher (default "bf"). Must be one of |
| 220 |
"bf" (blowfish), "aes-128", "aes-192" or "aes-256".])], |
| 221 |
if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi |
| 222 |
if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi |
| 223 |
if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi |
| 224 |
if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi |
| 225 |
) |
| 226 |
AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) |
| 227 |
|
| 228 |
DIGEST=sha1 |
| 229 |
AC_ARG_ENABLE(digest, |
| 230 |
[AC_HELP_STRING(--enable-digest, [ |
| 231 |
Select the digets algorithm to use (default "sha1"). Must be one of |
| 232 |
"sha1", "ripemd160", "md4" or "md5".])], |
| 233 |
if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi |
| 234 |
if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi |
| 235 |
if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi |
| 236 |
if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi |
| 237 |
) |
| 238 |
AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) |
| 239 |
|
| 240 |
TRUST=1 |
| 241 |
m4_if([ |
| 242 |
AC_ARG_ENABLE(trust, |
| 243 |
[AC_HELP_STRING(--enable-trust, [ |
| 244 |
Make authentication faster but allow decoding by all hosts of a VPN. |
| 245 |
Use this when the VPN hosts DO trust each other and you don't care |
| 246 |
wether man-in-the-middle sniffing attacks are possible by admins |
| 247 |
of other VPN hosts. On pentiums or similar machines this can cut down |
| 248 |
the time for reconnects by 0.4 seconds or more.])], |
| 249 |
if test "x$enableval" = xyes; then |
| 250 |
TRUST=1 |
| 251 |
fi |
| 252 |
) |
| 253 |
]) |
| 254 |
AC_DEFINE_UNQUOTED(ENABLE_TRUST, $TRUST, [Faster, but VPN hosts may sniff each others data.]) |
| 255 |
|
| 256 |
if $CXX -v --help 2>&1 | grep -q fno-rtti; then |
| 257 |
CXXFLAGS="$CXXFLAGS -fno-rtti" |
| 258 |
fi |
| 259 |
|
| 260 |
if $CXX -v --help 2>&1 | grep -q fexceptions; then |
| 261 |
CXXFLAGS="$CXXFLAGS -fno-exceptions" |
| 262 |
fi |
| 263 |
|
| 264 |
if $CXX -v --help 2>&1 | grep -q ffunction-sections; then |
| 265 |
CXXFLAGS="$CXXFLAGS -ffunction-sections" |
| 266 |
fi |
| 267 |
|
| 268 |
if $LD -v --help 2>&1 | grep -q gc-sections; then |
| 269 |
LDFLAGS="$LDFLAGS -Wl,--gc-sections" |
| 270 |
fi |
| 271 |
|
| 272 |
AC_CONFIG_COMMANDS_POST([ |
| 273 |
|
| 274 |
echo |
| 275 |
echo "***" |
| 276 |
echo "*** Configuration Summary" |
| 277 |
echo "***" |
| 278 |
echo "*** Cipher used: $CIPHER" |
| 279 |
echo "*** Digest used: $DIGEST" |
| 280 |
echo "*** HMAC length: $HMAC" |
| 281 |
echo "*** RAND used: $RAND" |
| 282 |
echo "*** Max. MTU: $MTU" |
| 283 |
echo "*** Compression: $COMPRESS" |
| 284 |
dnl echo "*** Trusted Mode: $TRUST" |
| 285 |
echo "***" |
| 286 |
echo |
| 287 |
|
| 288 |
]) |
| 289 |
|
| 290 |
AC_SUBST(INCLUDES) |
| 291 |
|
| 292 |
AC_OUTPUT(Makefile po/Makefile.in |
| 293 |
src/Makefile |
| 294 |
doc/Makefile |
| 295 |
lib/Makefile |
| 296 |
m4/Makefile |
| 297 |
) |
