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Comparing gvpe/configure.ac (file contents):
Revision 1.48 by pcg, Sun Dec 2 00:39:06 2007 UTC vs.
Revision 1.66 by root, Thu Oct 25 04:32:26 2018 UTC

1dnl Process this file with autoconf to produce a configure script. 1dnl Process this file with autoconf to produce a configure script.
2 2
3AC_PREREQ(2.59) 3AC_PREREQ(2.69)
4AC_INIT 4AC_INIT
5AC_CONFIG_SRCDIR([src/gvpe.C]) 5AC_CONFIG_SRCDIR([src/gvpe.C])
6AC_CANONICAL_TARGET 6AC_CANONICAL_TARGET
7AM_INIT_AUTOMAKE(gvpe, 2.01) 7AM_INIT_AUTOMAKE(gvpe, 3.1)
8AC_CONFIG_HEADERS([config.h]) 8AC_CONFIG_HEADERS([config.h])
9AM_MAINTAINER_MODE 9AM_MAINTAINER_MODE
10 10
11AH_TOP([ 11AH_TOP([
12#ifndef CONFIG_H__ 12#ifndef CONFIG_H__
… …
46#else 46#else
47# define CLOCALE <locale.h> 47# define CLOCALE <locale.h>
48#endif 48#endif
49]) 49])
50 50
51dnl Include the macros from the m4/ directory
52AM_ACLOCAL_INCLUDE(m4)
53
54AM_GNU_GETTEXT([external]) 51AM_GNU_GETTEXT([external])
55AM_GNU_GETTEXT_VERSION(0.11.5) 52AM_GNU_GETTEXT_VERSION(0.11.5)
56 53
57# Enable GNU extensions. 54# Enable GNU extensions.
58# Define this here, not in acconfig's @TOP@ section, since definitions 55# Define this here, not in acconfig's @TOP@ section, since definitions
… …
64dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions]) 61dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])
65 62
66ALL_LINGUAS="" 63ALL_LINGUAS=""
67 64
68dnl Checks for programs. 65dnl Checks for programs.
69AC_PROG_CC
70AC_PROG_CPP 66AC_PROG_CPP
71AC_PROG_CXX 67AC_PROG_CXX
72AC_PROG_GCC_TRADITIONAL 68AC_PROG_GCC_TRADITIONAL
73AC_PROG_AWK 69AC_PROG_AWK
74AC_PROG_INSTALL 70AC_PROG_INSTALL
… …
238AC_CACHE_SAVE 234AC_CACHE_SAVE
239 235
240dnl These are defined in files in m4/ 236dnl These are defined in files in m4/
241tinc_TUNTAP 237tinc_TUNTAP
242 238
243tinc_OPENSSL 239PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1])
244if test "x$openssl_include" != x; then 240
245 CXXFLAGS="$CXXFLAGS -I$openssl_include" 241AC_ARG_ENABLE(threads,
242 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)],
243 [try_threads=$enableval],
244 [try_threads=yes]
245)
246
247if test "x$try_threads" = xyes; then
248 AC_CHECK_HEADER(pthread.h,[
249 LIBS="$LIBS -lpthread"
250 AC_COMPILE_IFELSE(
251 [AC_LANG_PROGRAM([#include <pthread.h>], [pthread_t id; pthread_create (&id, 0, 0, 0);])],
252 [AC_DEFINE_UNQUOTED(ENABLE_PTHREADS, 1, [POSIX thread support.])]
253 )
254 ])
246fi 255fi
247dnl tinc_ZLIB
248 256
249AC_ARG_ENABLE(static-daemon, 257AC_ARG_ENABLE(static-daemon,
250 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)], 258 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
251 [LDFLAGS_DAEMON=-static] 259 [LDFLAGS_DAEMON=-static]
252) 260)
253AC_SUBST(LDFLAGS_DAEMON) 261AC_SUBST(LDFLAGS_DAEMON)
254 262
255AC_ARG_ENABLE(rohc, 263dnl AC_ARG_ENABLE(rohc,
256 [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)], 264dnl [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
257 [ 265dnl [
258 echo 266dnl echo
259 echo "**********************************************************************" 267dnl echo "**********************************************************************"
260 echo "**********************************************************************" 268dnl echo "**********************************************************************"
261 echo "**** --enable-rohc is highly experimental, do not use ****************" 269dnl echo "**** --enable-rohc is highly experimental, do not use ****************"
262 echo "**********************************************************************" 270dnl echo "**********************************************************************"
263 echo "**********************************************************************" 271dnl echo "**********************************************************************"
264 echo 272dnl echo
265 rohc=true 273dnl rohc=true
266 AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support]) 274dnl AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
267 ] 275dnl ]
268) 276dnl )
269 277
270AM_CONDITIONAL(ROHC, test x$rohc = xtrue) 278AM_CONDITIONAL(ROHC, test x$rohc = xtrue)
271 279
272dnl AC_ARG_ENABLE(bridging, 280dnl AC_ARG_ENABLE(bridging,
273dnl [AS_HELP_STRING(--enable-bridging,enable bridging support (default disabled).)], 281dnl [AS_HELP_STRING(--enable-bridging,enable bridging support (default disabled).)],
274dnl AC_DEFINE_UNQUOTED(ENABLE_BRIDGING, 1, [bridging support.]) 282dnl AC_DEFINE_UNQUOTED(ENABLE_BRIDGING, 1, [bridging support.])
275dnl ) 283dnl )
276 284
285ICMP=1
277AC_ARG_ENABLE(icmp, 286AC_ARG_ENABLE(icmp,
278 [AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)], 287 [AS_HELP_STRING(--disable-icmp,enable icmp protocol support (default enabled).)],
288 if test "x$enableval" = xno; then
289 ICMP=0
290 fi
291)
292if test "x$ICMP" = x1; then
279 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.]) 293 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
280) 294fi
281 295
296TCP=1
282AC_ARG_ENABLE(tcp, 297AC_ARG_ENABLE(tcp,
283 [AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)], 298 [AS_HELP_STRING(--disable-tcp,enable tcp protocol support (default enabled).)],
299 if test "x$enableval" = xno; then
300 TCP=0
301 fi
302)
303if test "x$TCP" = x1; then
284 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.]) 304 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
305fi
306
307HTTP=1
308AC_ARG_ENABLE(http-proxy,
309 [AS_HELP_STRING(--disable-http-proxy,enable http proxy connect support (default enabled).)],
310 if test "x$enableval" = xno; then
311 HTTP=0
312 fi
285) 313)
314if test "x$HTTP" = x1; then
315 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
316fi
286 317
287AC_ARG_ENABLE(dns, 318AC_ARG_ENABLE(dns,
288 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)], 319 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (default disabled).)],
289 [ 320 [
290 AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])]) 321 AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
291 AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])]) 322 AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
292 323
293 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.]) 324 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
294 ] 325 ]
295) 326)
296 327
297AC_ARG_ENABLE(http-proxy, 328RSA=3072
298 [AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)], 329AC_ARG_ENABLE(rsa-length,
299 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.]) 330 [AS_HELP_STRING(--enable-rsa-length=BITS,[
331 use BITS rsa keys (default 3072). Allowed values are 2048-10240.])],
332 RSA=$enableval
300) 333)
334AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.])
301 335
302HMAC=12 336HMACSIZE=12
303AC_ARG_ENABLE(hmac-length, 337AC_ARG_ENABLE(hmac-length,
304 [AS_HELP_STRING(--enable-hmac-length=BYTES,[ 338 [AS_HELP_STRING(--enable-hmac-length=BYTES,[
305 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], 339 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
306 HMAC=$enableval 340 HMACSIZE=$enableval
307) 341)
308AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) 342AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.])
309
310RAND=8
311AC_ARG_ENABLE(rand-length,
312 [AS_HELP_STRING(--enable-rand-length=BYTES,
313 [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
314 RAND=$enableval
315)
316AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])
317 343
318MTU=1500 344MTU=1500
319AC_ARG_ENABLE(mtu, 345AC_ARG_ENABLE(max-mtu,
320 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], 346 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
321 MTU=$enableval 347 MTU=$enableval
322) 348)
323AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) 349AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.])
324 350
325COMPRESS=1 351COMPRESS=1
326AC_ARG_ENABLE(compression, 352AC_ARG_ENABLE(compression,
327 [AS_HELP_STRING(--disable-compression,Disable compression support.)], 353 [AS_HELP_STRING(--disable-compression,Disable compression support.)],
328 if test "x$enableval" = xno; then 354 if test "x$enableval" = xno; then
329 COMPRESS=0 355 COMPRESS=0
330 fi 356 fi
331) 357)
332AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) 358AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
333 359
334CIPHER=aes_128_cbc 360CIPHER=aes_128_ctr
335AC_ARG_ENABLE(cipher, 361AC_ARG_ENABLE(cipher,
336 [AS_HELP_STRING(--enable-cipher,[ 362 [AS_HELP_STRING(--enable-cipher=CIPHER,[
337 Select the symmetric cipher (default "aes-128"). 363 Select the symmetric cipher (default "aes-128").
338 Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])], 364 Must be one of "aes-128" (rijndael), "aes-192", or "aes-256".])],
339 if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi 365 #if test "x$enableval" = xbf ; then CIPHER=bf_ctr ; fi
340 if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi 366 if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_ctr ; fi
341 if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi 367 if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_ctr ; fi
342 if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi 368 if test "x$enableval" = xaes-256 ; then CIPHER=aes_256_ctr ; fi
369 #if test "x$enableval" = xcamellia-128; then CIPHER=camellia_128_ctr; fi
370 #if test "x$enableval" = xcamellia-256; then CIPHER=camellia_256_ctr; fi
343) 371)
344AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) 372AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
345 373
346DIGEST=ripemd160 374HMAC=sha1
347AC_ARG_ENABLE(digest, 375AC_ARG_ENABLE(hmac-digest,
348 [AS_HELP_STRING(--enable-digest,[ 376 [AS_HELP_STRING(--enable-hmac-digest=HMAC,[
349 Select the digest algorithm to use (default "ripemd160"). Must be one of 377 Select the HMAC digest algorithm to use (default "sha1"). Must be one of
350 "sha512", "sha256", "sha1", "ripemd160", "md5" or "md4" (insecure).])], 378 "sha512", "sha256", "sha1", "ripemd160", "whirlpool".])],
379 if test "x$enableval" = xwhirlpool; then HMAC=whirlpool; fi
380 if test "x$enableval" = xsha512 ; then HMAC=sha512 ; fi
381 if test "x$enableval" = xsha256 ; then HMAC=sha256 ; fi
382 if test "x$enableval" = xsha1 ; then HMAC=sha1 ; fi
383 if test "x$enableval" = xripemd160; then HMAC=ripemd160; fi
384)
385AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.])
386
387AUTH=sha512
388AC_ARG_ENABLE(auth-digest,
389 [AS_HELP_STRING(--enable-auth-digest=DIGEST,[
390 Select the hmac algorithm to use (default "sha512"). Must be one of
391 "sha512", "sha256", "whirlpool".])],
392 if test "x$enableval" = xwhirlpool; then AUTH=whirlpool; fi
351 if test "x$enableval" = xsha512 ; then DIGEST=sha512 ; fi 393 if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi
352 if test "x$enableval" = xsha256 ; then DIGEST=sha256 ; fi 394 if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi
353 if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi
354 if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi
355 if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi
356 if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi
357) 395)
358AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) 396AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.])
359 397
360if $CXX -v --help 2>&1 | grep -q fno-rtti; then 398if $CXX -v --help 2>&1 | grep -q fno-rtti; then
361 CXXFLAGS="$CXXFLAGS -fno-rtti" 399 CXXFLAGS="$CXXFLAGS -fno-rtti"
362fi 400fi
363 401
364if $CXX -v --help 2>&1 | grep -q fexceptions; then 402#if $CXX -v --help 2>&1 | grep -q fexceptions; then
365 CXXFLAGS="$CXXFLAGS -fno-exceptions" 403# CXXFLAGS="$CXXFLAGS -fno-exceptions"
366fi 404#fi
367 405
368LIBS="$EXTRA_LIBS $LIBS" 406LIBS="$EXTRA_LIBS $LIBS"
369 407
370dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then 408dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
371dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" 409dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
372dnl fi 410dnl fi
373dnl 411dnl
374dnl if $LD -v --help 2>&1 | grep -q gc-sections; then 412dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
375dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" 413dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
376dnl fi 414dnl fi
377 415
378AC_SUBST(INCLUDES) 416AC_SUBST(INCLUDES)
… …
388echo 426echo
389echo "***" 427echo "***"
390echo "*** Configuration Summary" 428echo "*** Configuration Summary"
391echo "***" 429echo "***"
392echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE" 430echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
431echo "*** RSA size: $RSA"
393echo "*** Cipher used: $CIPHER" 432echo "*** Cipher used: $CIPHER"
394echo "*** Digest used: $DIGEST" 433echo "*** Digest used: $DIGEST"
434echo "*** Authdigest: $AUTH"
395echo "*** HMAC length: $HMAC" 435echo "*** HMAC length: $HMAC"
396echo "*** RAND used: $RAND"
397echo "*** Max. MTU: $MTU" 436echo "*** Max. MTU: $MTU"
398 437
399echo "***" 438echo "***"
400echo "*** Enable options:" 439echo "*** Enable options:"
401grep ENABLE_ config.h | sed -e 's/^/*** /' 440grep ENABLE_ config.h | sed -e 's/^/*** /'
402 441
403if test "x$DIGEST" = xmd4; then 442if test "$HMACSIZE" -lt 12; then
404echo "***" 443echo "***"
405echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
406fi
407
408if test "$HMAC" -lt 12; then
409echo "***"
410echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure" 444echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure"
411fi
412
413if test "$RAND" -lt 8; then
414echo "***"
415echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
416fi 445fi
417 446
418echo "***" 447echo "***"
419echo 448echo
420 449
450if pkg-config --exists 'libcrypto >= 1.1 libcrypto < 2.0'; then
451 cat <<EOF
452@<:@33m
453***
454*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
455***
456*** You seem to configure gvpe with OpenSSL 1.1 or newer.
457*** While this probably compiles, please note that this is not only
458*** unsupported, but also discouraged.
459***
460*** It is recommended to use either OpenSSL 1.0, as long as that is still
461*** supported, or LibreSSL (https://www.libressl.org/).
462***
463*** This is not a political issue - while porting GVPE to the newer
464*** OpenSSL 1.1 API, I encountered two incompatible API changes that were
465*** not documented, were not caught while compiling but caused security
466*** issues. When reported, the reaction of the OpenSSL developers was to
467*** update the documentation.
468***
469*** As a result, I lost all confidence in the ability and desire of
470*** OpenSSL developers to create a safe API, and would highly recommend
471*** switching to LibreSSL which explicitly avoids such braking changes.
472***
473*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
474***
475*** Again, do not use OpenSSL 1.1 and complain if stuff breaks.
476*** You have been warned, but your choice is respected.
477***
478@<:@0m
421 479
480EOF
481fi
482
483

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