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/cvs/gvpe/configure.ac
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Comparing gvpe/configure.ac (file contents):
Revision 1.58 by root, Tue Mar 8 17:33:30 2011 UTC vs.
Revision 1.68 by root, Thu Oct 6 03:25:53 2022 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([2.71])
4AC_INIT 4AC_INIT([gvpe],[3.1])
5AC_CONFIG_SRCDIR([src/gvpe.C]) 5AC_CONFIG_SRCDIR([src/gvpe.C])
6AC_CANONICAL_TARGET 6AC_CANONICAL_TARGET
7AM_INIT_AUTOMAKE(gvpe, 2.24) 7AM_INIT_AUTOMAKE
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__
… …
45# define CLOCALE <clocale> 45# define CLOCALE <clocale>
46#else 46#else
47# define CLOCALE <locale.h> 47# define CLOCALE <locale.h>
48#endif 48#endif
49]) 49])
50
51dnl Include the macros from the m4/ directory
52AM_ACLOCAL_INCLUDE(m4)
53 50
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.
… …
182 179
183dnl Checks for typedefs, structures, and compiler characteristics. 180dnl Checks for typedefs, structures, and compiler characteristics.
184AC_C_CONST 181AC_C_CONST
185AC_TYPE_PID_T 182AC_TYPE_PID_T
186AC_TYPE_SIZE_T 183AC_TYPE_SIZE_T
187AC_HEADER_TIME 184AC_CHECK_HEADERS_ONCE([sys/time.h])
185
188AC_STRUCT_TM 186AC_STRUCT_TM
189 187
190AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t, 188AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
191[ 189[
192 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> 190 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
… …
204]) 202])
205if test $ac_cv_struct_addrinfo = yes; then 203if test $ac_cv_struct_addrinfo = yes; then
206 AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available]) 204 AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
207fi 205fi
208 206
209dnl Checks for library functions.
210AC_TYPE_SIGNAL
211
212AC_LANG_PUSH(C) 207AC_LANG_PUSH(C)
213
214AC_HEADER_STDC
215 208
216dnl argl, could somebody catapult darwin into the 21st century??? 209dnl argl, could somebody catapult darwin into the 21st century???
217AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall) 210AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)
218 211
219AC_FUNC_ALLOCA 212AC_FUNC_ALLOCA
… …
237AC_CACHE_SAVE 230AC_CACHE_SAVE
238 231
239dnl These are defined in files in m4/ 232dnl These are defined in files in m4/
240tinc_TUNTAP 233tinc_TUNTAP
241 234
242tinc_OPENSSL 235PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1])
243if test "x$openssl_include" != x; then
244 CXXFLAGS="$CXXFLAGS -I$openssl_include"
245fi
246dnl tinc_ZLIB
247 236
248AC_ARG_ENABLE(threads, 237AC_ARG_ENABLE(threads,
249 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)], 238 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)],
250 [try_threads=$enableval], 239 [try_threads=$enableval],
251 [try_threads=yes] 240 [try_threads=yes]
… …
330 319
331 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.]) 320 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
332 ] 321 ]
333) 322)
334 323
324RSA=3072
325AC_ARG_ENABLE(rsa-length,
326 [AS_HELP_STRING(--enable-rsa-length=BITS,[
327 use BITS rsa keys (default 3072). Allowed values are 2048-10240.])],
328 RSA=$enableval
329)
330AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.])
331
335HMAC=12 332HMACSIZE=12
336AC_ARG_ENABLE(hmac-length, 333AC_ARG_ENABLE(hmac-length,
337 [AS_HELP_STRING(--enable-hmac-length=BYTES,[ 334 [AS_HELP_STRING(--enable-hmac-length=BYTES,[
338 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], 335 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
339 HMAC=$enableval 336 HMACSIZE=$enableval
340) 337)
341AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) 338AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.])
342
343RAND=8
344AC_ARG_ENABLE(rand-length,
345 [AS_HELP_STRING(--enable-rand-length=BYTES,
346 [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
347 RAND=$enableval
348)
349AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])
350 339
351MTU=1500 340MTU=1500
352AC_ARG_ENABLE(max-mtu, 341AC_ARG_ENABLE(max-mtu,
353 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], 342 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
354 MTU=$enableval 343 MTU=$enableval
355) 344)
356AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) 345AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.])
357 346
358COMPRESS=1 347COMPRESS=1
359AC_ARG_ENABLE(compression, 348AC_ARG_ENABLE(compression,
360 [AS_HELP_STRING(--disable-compression,Disable compression support.)], 349 [AS_HELP_STRING(--disable-compression,Disable compression support.)],
361 if test "x$enableval" = xno; then 350 if test "x$enableval" = xno; then
362 COMPRESS=0 351 COMPRESS=0
363 fi 352 fi
364) 353)
365AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) 354AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
366 355
367CIPHER=aes_128_cbc 356CIPHER=aes_128_ctr
368AC_ARG_ENABLE(cipher, 357AC_ARG_ENABLE(cipher,
369 [AS_HELP_STRING(--enable-cipher=CIPHER,[ 358 [AS_HELP_STRING(--enable-cipher=CIPHER,[
370 Select the symmetric cipher (default "aes-128"). 359 Select the symmetric cipher (default "aes-128").
371 Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])], 360 Must be one of "aes-128" (rijndael), "aes-192", or "aes-256".])],
372 if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi 361 #if test "x$enableval" = xbf ; then CIPHER=bf_ctr ; fi
373 if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi 362 if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_ctr ; fi
374 if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi 363 if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_ctr ; fi
375 if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi 364 if test "x$enableval" = xaes-256 ; then CIPHER=aes_256_ctr ; fi
365 #if test "x$enableval" = xcamellia-128; then CIPHER=camellia_128_ctr; fi
366 #if test "x$enableval" = xcamellia-256; then CIPHER=camellia_256_ctr; fi
376) 367)
377AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) 368AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
378 369
379DIGEST=ripemd160 370HMAC=sha1
380AC_ARG_ENABLE(digest, 371AC_ARG_ENABLE(hmac-digest,
381 [AS_HELP_STRING(--enable-digest=CIPHER,[ 372 [AS_HELP_STRING(--enable-hmac-digest=HMAC,[
382 Select the digest algorithm to use (default "ripemd160"). Must be one of 373 Select the HMAC digest algorithm to use (default "sha1"). Must be one of
383 "sha512", "sha256", "sha1" (somewhat insecure), "ripemd160", "md5" (insecure) or "md4" (insecure).])], 374 "sha512", "sha256", "sha1", "ripemd160", "whirlpool".])],
375 if test "x$enableval" = xwhirlpool; then HMAC=whirlpool; fi
376 if test "x$enableval" = xsha512 ; then HMAC=sha512 ; fi
377 if test "x$enableval" = xsha256 ; then HMAC=sha256 ; fi
378 if test "x$enableval" = xsha1 ; then HMAC=sha1 ; fi
379 if test "x$enableval" = xripemd160; then HMAC=ripemd160; fi
380)
381AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.])
382
383AUTH=sha512
384AC_ARG_ENABLE(auth-digest,
385 [AS_HELP_STRING(--enable-auth-digest=DIGEST,[
386 Select the hmac algorithm to use (default "sha512"). Must be one of
387 "sha512", "sha256", "whirlpool".])],
388 if test "x$enableval" = xwhirlpool; then AUTH=whirlpool; fi
384 if test "x$enableval" = xsha512 ; then DIGEST=sha512 ; fi 389 if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi
385 if test "x$enableval" = xsha256 ; then DIGEST=sha256 ; fi 390 if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi
386 if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi
387 if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi
388 if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi
389 if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi
390) 391)
391AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) 392AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.])
392 393
393if $CXX -v --help 2>&1 | grep -q fno-rtti; then 394if $CXX -v --help 2>&1 | grep -q fno-rtti; then
394 CXXFLAGS="$CXXFLAGS -fno-rtti" 395 CXXFLAGS="$CXXFLAGS -fno-rtti"
395fi 396fi
396 397
… …
401LIBS="$EXTRA_LIBS $LIBS" 402LIBS="$EXTRA_LIBS $LIBS"
402 403
403dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then 404dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
404dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" 405dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
405dnl fi 406dnl fi
406dnl 407dnl
407dnl if $LD -v --help 2>&1 | grep -q gc-sections; then 408dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
408dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" 409dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
409dnl fi 410dnl fi
410 411
411AC_SUBST(INCLUDES) 412AC_SUBST(AM_CPPFLAGS)
412 413
413AC_CONFIG_FILES([Makefile po/Makefile.in 414AC_CONFIG_FILES([Makefile po/Makefile.in
414src/Makefile 415src/Makefile
415doc/Makefile 416doc/Makefile
416lib/Makefile 417lib/Makefile
… …
421echo 422echo
422echo "***" 423echo "***"
423echo "*** Configuration Summary" 424echo "*** Configuration Summary"
424echo "***" 425echo "***"
425echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE" 426echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
427echo "*** RSA size: $RSA"
426echo "*** Cipher used: $CIPHER" 428echo "*** Cipher used: $CIPHER"
427echo "*** Digest used: $DIGEST" 429echo "*** Digest used: $DIGEST"
430echo "*** Authdigest: $AUTH"
428echo "*** HMAC length: $HMAC" 431echo "*** HMAC length: $HMAC"
429echo "*** RAND used: $RAND"
430echo "*** Max. MTU: $MTU" 432echo "*** Max. MTU: $MTU"
431 433
432echo "***" 434echo "***"
433echo "*** Enable options:" 435echo "*** Enable options:"
434grep ENABLE_ config.h | sed -e 's/^/*** /' 436grep ENABLE_ config.h | sed -e 's/^/*** /'
435 437
436if test "x$DIGEST" = xmd4; then 438if test "$HMACSIZE" -lt 12; then
437echo "***" 439echo "***"
438echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
439fi
440
441if test "x$DIGEST" = xmd5; then
442echo "***"
443echo "*** WARNING: The digest you have chosen ($DIGEST) is probably insecure"
444fi
445
446if test "$HMAC" -lt 12; then
447echo "***"
448echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure" 440echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure"
449fi
450
451if test "$RAND" -lt 8; then
452echo "***"
453echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
454fi 441fi
455 442
456echo "***" 443echo "***"
457echo 444echo
458 445
446if pkg-config --exists 'libcrypto >= 1.1 libcrypto < 2.0'; then
447 cat <<EOF
448@<:@33m
449***
450*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
451***
452*** You seem to configure gvpe with OpenSSL 1.1 or newer.
453*** While this probably compiles, please note that this is not only
454*** unsupported, but also discouraged.
455***
456*** It is recommended to use either OpenSSL 1.0, as long as that is still
457*** supported, or LibreSSL (https://www.libressl.org/).
458***
459*** This is not a political issue - while porting GVPE to the newer
460*** OpenSSL 1.1 API, I encountered two incompatible API changes that were
461*** not documented, were not caught while compiling but caused security
462*** issues. When reported, the reaction of the OpenSSL developers was to
463*** update the documentation.
464***
465*** As a result, I lost all confidence in the ability and desire of
466*** OpenSSL developers to create a safe API, and would highly recommend
467*** switching to LibreSSL which explicitly avoids such braking changes.
468***
469*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
470***
471*** Again, do not use OpenSSL 1.1 and complain if stuff breaks.
472*** You have been warned, but your choice is respected.
473***
474@<:@0m
459 475
476EOF
477fi
478
479

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