1 | dnl Process this file with autoconf to produce a configure script. |
1 | dnl Process this file with autoconf to produce a configure script. |
2 | |
2 | |
3 | AC_PREREQ(2.59) |
3 | AC_PREREQ(2.69) |
4 | AC_INIT |
4 | AC_INIT |
5 | AC_CONFIG_SRCDIR([src/gvpe.C]) |
5 | AC_CONFIG_SRCDIR([src/gvpe.C]) |
6 | AC_CANONICAL_TARGET |
6 | AC_CANONICAL_TARGET |
7 | AM_INIT_AUTOMAKE(gvpe, 2.24) |
7 | AM_INIT_AUTOMAKE(gvpe, 3.1) |
8 | AC_CONFIG_HEADERS([config.h]) |
8 | AC_CONFIG_HEADERS([config.h]) |
9 | AM_MAINTAINER_MODE |
9 | AM_MAINTAINER_MODE |
10 | |
10 | |
11 | AH_TOP([ |
11 | AH_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 | |
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51 | dnl Include the macros from the m4/ directory |
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52 | AM_ACLOCAL_INCLUDE(m4) |
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53 | |
50 | |
54 | AM_GNU_GETTEXT([external]) |
51 | AM_GNU_GETTEXT([external]) |
55 | AM_GNU_GETTEXT_VERSION(0.11.5) |
52 | AM_GNU_GETTEXT_VERSION(0.11.5) |
56 | |
53 | |
57 | # Enable GNU extensions. |
54 | # Enable GNU extensions. |
… | |
… | |
237 | AC_CACHE_SAVE |
234 | AC_CACHE_SAVE |
238 | |
235 | |
239 | dnl These are defined in files in m4/ |
236 | dnl These are defined in files in m4/ |
240 | tinc_TUNTAP |
237 | tinc_TUNTAP |
241 | |
238 | |
242 | tinc_OPENSSL |
239 | PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1]) |
243 | if test "x$openssl_include" != x; then |
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244 | CXXFLAGS="$CXXFLAGS -I$openssl_include" |
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245 | fi |
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246 | dnl tinc_ZLIB |
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247 | |
240 | |
248 | AC_ARG_ENABLE(threads, |
241 | AC_ARG_ENABLE(threads, |
249 | [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)], |
242 | [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)], |
250 | [try_threads=$enableval], |
243 | [try_threads=$enableval], |
251 | [try_threads=yes] |
244 | [try_threads=yes] |
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… | |
330 | |
323 | |
331 | AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.]) |
324 | AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.]) |
332 | ] |
325 | ] |
333 | ) |
326 | ) |
334 | |
327 | |
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328 | RSA=3072 |
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329 | AC_ARG_ENABLE(rsa-length, |
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330 | [AS_HELP_STRING(--enable-rsa-length=BITS,[ |
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331 | use BITS rsa keys (default 3072). Allowed values are 2048-10240.])], |
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332 | RSA=$enableval |
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333 | ) |
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334 | AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.]) |
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335 | |
335 | HMAC=12 |
336 | HMACSIZE=12 |
336 | AC_ARG_ENABLE(hmac-length, |
337 | AC_ARG_ENABLE(hmac-length, |
337 | [AS_HELP_STRING(--enable-hmac-length=BYTES,[ |
338 | [AS_HELP_STRING(--enable-hmac-length=BYTES,[ |
338 | use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], |
339 | use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], |
339 | HMAC=$enableval |
340 | HMACSIZE=$enableval |
340 | ) |
341 | ) |
341 | AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) |
342 | AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.]) |
342 | |
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343 | RAND=8 |
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344 | AC_ARG_ENABLE(rand-length, |
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345 | [AS_HELP_STRING(--enable-rand-length=BYTES, |
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346 | [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])], |
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347 | RAND=$enableval |
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348 | ) |
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349 | AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.]) |
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350 | |
343 | |
351 | MTU=1500 |
344 | MTU=1500 |
352 | AC_ARG_ENABLE(max-mtu, |
345 | AC_ARG_ENABLE(max-mtu, |
353 | [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], |
346 | [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], |
354 | MTU=$enableval |
347 | MTU=$enableval |
355 | ) |
348 | ) |
356 | AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) |
349 | AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.]) |
357 | |
350 | |
358 | COMPRESS=1 |
351 | COMPRESS=1 |
359 | AC_ARG_ENABLE(compression, |
352 | AC_ARG_ENABLE(compression, |
360 | [AS_HELP_STRING(--disable-compression,Disable compression support.)], |
353 | [AS_HELP_STRING(--disable-compression,Disable compression support.)], |
361 | if test "x$enableval" = xno; then |
354 | if test "x$enableval" = xno; then |
362 | COMPRESS=0 |
355 | COMPRESS=0 |
363 | fi |
356 | fi |
364 | ) |
357 | ) |
365 | AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) |
358 | AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) |
366 | |
359 | |
367 | CIPHER=aes_128_cbc |
360 | CIPHER=aes_128_ctr |
368 | AC_ARG_ENABLE(cipher, |
361 | AC_ARG_ENABLE(cipher, |
369 | [AS_HELP_STRING(--enable-cipher=CIPHER,[ |
362 | [AS_HELP_STRING(--enable-cipher=CIPHER,[ |
370 | Select the symmetric cipher (default "aes-128"). |
363 | Select the symmetric cipher (default "aes-128"). |
371 | Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])], |
364 | Must be one of "aes-128" (rijndael), "aes-192", or "aes-256".])], |
372 | if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi |
365 | #if test "x$enableval" = xbf ; then CIPHER=bf_ctr ; fi |
373 | if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi |
366 | if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_ctr ; fi |
374 | if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi |
367 | if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_ctr ; fi |
375 | if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi |
368 | if test "x$enableval" = xaes-256 ; then CIPHER=aes_256_ctr ; fi |
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369 | #if test "x$enableval" = xcamellia-128; then CIPHER=camellia_128_ctr; fi |
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370 | #if test "x$enableval" = xcamellia-256; then CIPHER=camellia_256_ctr; fi |
376 | ) |
371 | ) |
377 | AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) |
372 | AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) |
378 | |
373 | |
379 | DIGEST=ripemd160 |
374 | HMAC=sha1 |
380 | AC_ARG_ENABLE(digest, |
375 | AC_ARG_ENABLE(hmac-digest, |
381 | [AS_HELP_STRING(--enable-digest=CIPHER,[ |
376 | [AS_HELP_STRING(--enable-hmac-digest=HMAC,[ |
382 | Select the digest algorithm to use (default "ripemd160"). Must be one of |
377 | Select the HMAC digest algorithm to use (default "sha1"). Must be one of |
383 | "sha512", "sha256", "sha1" (somewhat insecure), "ripemd160", "md5" (insecure) or "md4" (insecure).])], |
378 | "sha512", "sha256", "sha1", "ripemd160", "whirlpool".])], |
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379 | if test "x$enableval" = xwhirlpool; then HMAC=whirlpool; fi |
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380 | if test "x$enableval" = xsha512 ; then HMAC=sha512 ; fi |
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381 | if test "x$enableval" = xsha256 ; then HMAC=sha256 ; fi |
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382 | if test "x$enableval" = xsha1 ; then HMAC=sha1 ; fi |
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383 | if test "x$enableval" = xripemd160; then HMAC=ripemd160; fi |
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384 | ) |
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385 | AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.]) |
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386 | |
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387 | AUTH=sha512 |
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388 | AC_ARG_ENABLE(auth-digest, |
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389 | [AS_HELP_STRING(--enable-auth-digest=DIGEST,[ |
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390 | Select the hmac algorithm to use (default "sha512"). Must be one of |
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391 | "sha512", "sha256", "whirlpool".])], |
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392 | if test "x$enableval" = xwhirlpool; then AUTH=whirlpool; fi |
384 | if test "x$enableval" = xsha512 ; then DIGEST=sha512 ; fi |
393 | if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi |
385 | if test "x$enableval" = xsha256 ; then DIGEST=sha256 ; fi |
394 | if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi |
386 | if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi |
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387 | if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi |
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388 | if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi |
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389 | if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi |
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390 | ) |
395 | ) |
391 | AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) |
396 | AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.]) |
392 | |
397 | |
393 | if $CXX -v --help 2>&1 | grep -q fno-rtti; then |
398 | if $CXX -v --help 2>&1 | grep -q fno-rtti; then |
394 | CXXFLAGS="$CXXFLAGS -fno-rtti" |
399 | CXXFLAGS="$CXXFLAGS -fno-rtti" |
395 | fi |
400 | fi |
396 | |
401 | |
… | |
… | |
401 | LIBS="$EXTRA_LIBS $LIBS" |
406 | LIBS="$EXTRA_LIBS $LIBS" |
402 | |
407 | |
403 | dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then |
408 | dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then |
404 | dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" |
409 | dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" |
405 | dnl fi |
410 | dnl fi |
406 | dnl |
411 | dnl |
407 | dnl if $LD -v --help 2>&1 | grep -q gc-sections; then |
412 | dnl if $LD -v --help 2>&1 | grep -q gc-sections; then |
408 | dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" |
413 | dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" |
409 | dnl fi |
414 | dnl fi |
410 | |
415 | |
411 | AC_SUBST(INCLUDES) |
416 | AC_SUBST(INCLUDES) |
… | |
… | |
421 | echo |
426 | echo |
422 | echo "***" |
427 | echo "***" |
423 | echo "*** Configuration Summary" |
428 | echo "*** Configuration Summary" |
424 | echo "***" |
429 | echo "***" |
425 | echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE" |
430 | echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE" |
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431 | echo "*** RSA size: $RSA" |
426 | echo "*** Cipher used: $CIPHER" |
432 | echo "*** Cipher used: $CIPHER" |
427 | echo "*** Digest used: $DIGEST" |
433 | echo "*** Digest used: $DIGEST" |
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434 | echo "*** Authdigest: $AUTH" |
428 | echo "*** HMAC length: $HMAC" |
435 | echo "*** HMAC length: $HMAC" |
429 | echo "*** RAND used: $RAND" |
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430 | echo "*** Max. MTU: $MTU" |
436 | echo "*** Max. MTU: $MTU" |
431 | |
437 | |
432 | echo "***" |
438 | echo "***" |
433 | echo "*** Enable options:" |
439 | echo "*** Enable options:" |
434 | grep ENABLE_ config.h | sed -e 's/^/*** /' |
440 | grep ENABLE_ config.h | sed -e 's/^/*** /' |
435 | |
441 | |
436 | if test "x$DIGEST" = xmd4; then |
442 | if test "$HMACSIZE" -lt 12; then |
437 | echo "***" |
443 | echo "***" |
438 | echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure" |
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439 | fi |
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440 | |
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441 | if test "x$DIGEST" = xmd5; then |
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442 | echo "***" |
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443 | echo "*** WARNING: The digest you have chosen ($DIGEST) is probably insecure" |
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444 | fi |
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445 | |
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446 | if test "$HMAC" -lt 12; then |
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447 | echo "***" |
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448 | echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure" |
444 | echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure" |
449 | fi |
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450 | |
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451 | if test "$RAND" -lt 8; then |
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452 | echo "***" |
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453 | echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure" |
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454 | fi |
445 | fi |
455 | |
446 | |
456 | echo "***" |
447 | echo "***" |
457 | echo |
448 | echo |
458 | |
449 | |
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450 | if pkg-config --exists 'libcrypto >= 1.1 libcrypto < 2.0'; then |
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451 | cat <<EOF |
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452 | @<:@33m |
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453 | *** |
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454 | *** WARNING WARNING WARNING WARNING WARNING WARNING WARNING |
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455 | *** |
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456 | *** You seem to configure gvpe with OpenSSL 1.1 or newer. |
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457 | *** While this probably compiles, please note that this is not only |
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458 | *** unsupported, but also discouraged. |
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459 | *** |
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460 | *** It is recommended to use either OpenSSL 1.0, as long as that is still |
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461 | *** supported, or LibreSSL (https://www.libressl.org/). |
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462 | *** |
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463 | *** This is not a political issue - while porting GVPE to the newer |
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464 | *** OpenSSL 1.1 API, I encountered two incompatible API changes that were |
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465 | *** not documented, were not caught while compiling but caused security |
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466 | *** issues. When reported, the reaction of the OpenSSL developers was to |
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467 | *** update the documentation. |
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468 | *** |
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469 | *** As a result, I lost all confidence in the ability and desire of |
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470 | *** OpenSSL developers to create a safe API, and would highly recommend |
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471 | *** switching to LibreSSL which explicitly avoids such braking changes. |
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472 | *** |
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473 | *** WARNING WARNING WARNING WARNING WARNING WARNING WARNING |
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474 | *** |
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475 | *** Again, do not use OpenSSL 1.1 and complain if stuff breaks. |
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476 | *** You have been warned, but your choice is respected. |
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477 | *** |
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478 | @<:@0m |
459 | |
479 | |
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480 | EOF |
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481 | fi |
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482 | |
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483 | |