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/cvs/gvpe/configure.ac
Revision: 1.68
Committed: Thu Oct 6 03:25:53 2022 UTC (18 months, 3 weeks ago) by root
Branch: MAIN
CVS Tags: HEAD
Changes since 1.67: +4 -8 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 dnl Process this file with autoconf to produce a configure script.
2
3 AC_PREREQ([2.71])
4 AC_INIT([gvpe],[3.1])
5 AC_CONFIG_SRCDIR([src/gvpe.C])
6 AC_CANONICAL_TARGET
7 AM_INIT_AUTOMAKE
8 AC_CONFIG_HEADERS([config.h])
9 AM_MAINTAINER_MODE
10
11 AH_TOP([
12 #ifndef CONFIG_H__
13 #define CONFIG_H__
14
15 #ifdef __cplusplus
16 using namespace std;
17 #endif
18
19 ])
20
21 AH_BOTTOM([
22 typedef unsigned char u8;
23 typedef signed char s8;
24
25 #if __CYGWIN__
26
27 typedef unsigned short u16;
28 typedef unsigned int u32;
29 typedef signed short s16;
30 typedef signed int s32;
31
32 #else
33 #include <inttypes.h>
34
35 /* old modula-2 habits */
36 typedef uint16_t u16;
37 typedef uint32_t u32;
38 typedef int16_t s16;
39 typedef int32_t s32;
40 #endif
41
42 #endif
43
44 #if HAVE_CLOCALE
45 # define CLOCALE <clocale>
46 #else
47 # define CLOCALE <locale.h>
48 #endif
49 ])
50
51 AM_GNU_GETTEXT([external])
52 AM_GNU_GETTEXT_VERSION(0.11.5)
53
54 # Enable GNU extensions.
55 # Define this here, not in acconfig's @TOP@ section, since definitions
56 # in the latter don't make it into the configure-time tests.
57 AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extensions])
58
59 # do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
60 dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
61 dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])
62
63 ALL_LINGUAS=""
64
65 dnl Checks for programs.
66 AC_PROG_CPP
67 AC_PROG_CXX
68 AC_PROG_GCC_TRADITIONAL
69 AC_PROG_AWK
70 AC_PROG_INSTALL
71 AC_PROG_LN_S
72 AC_PROG_MAKE_SET
73 AC_PROG_RANLIB
74
75 AC_ARG_ENABLE(iftype,
76 [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
77 Use kernel/net device interface TYPE/SUBTYPE.
78 Working combinations are (see doc/gvpe.osdep.5.pod):
79 "native/linux"
80 "tincd/linux"
81 "tincd/netbsd"
82 "tincd/freebsd"
83 "tincd/openbsd"
84 "native/darwin"
85 "tincd/darwin"
86 "native/cygwin";
87 Untested combinations are:
88 "tincd/bsd"
89 "tincd/solaris"
90 "tincd/mingw"
91 "tincd/raw_socket"
92 "tincd/uml_socket";
93 Broken combinations are:
94 "tincd/cygwin";
95 The default is to autodetect.
96 )],
97 [
98 IFTYPE=`echo $enableval | sed s%/.*%%`
99 IFSUBTYPE=`echo $enableval | sed s%.*/%%`
100 ]
101 )
102
103 dnl Check and set OS
104 AC_MSG_CHECKING(for kernel networking interface type)
105
106 if test "x$IFTYPE" = "x"; then
107 case $target_os in
108 *linux*)
109 IFTYPE=native
110 IFSUBTYPE=linux
111 AC_DEFINE(HAVE_LINUX, 1, [Linux])
112 ;;
113 *freebsd*)
114 IFTYPE=tincd
115 IFSUBTYPE=freebsd
116 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
117 ;;
118 *darwin*)
119 IFTYPE=native
120 IFSUBTYPE=darwin
121 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
122 ;;
123 *solaris*)
124 IFTYPE=tincd
125 IFSUBTYPE=solaris
126 AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
127 ;;
128 *openbsd*)
129 IFTYPE=tincd
130 IFSUBTYPE=openbsd
131 AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
132 ;;
133 *netbsd*)
134 IFTYPE=tincd
135 IFSUBTYPE=netbsd
136 AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
137 ;;
138 *cygwin*)
139 IFTYPE=native
140 IFSUBTYPE=cygwin
141 AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
142 ;;
143 *)
144 AC_MSG_ERROR("Unknown operating system.")
145 ;;
146 esac
147 fi
148 AC_MSG_RESULT($IFTYPE/$IFSUBTYPE)
149 AC_SUBST(IFTYPE,$IFTYPE)
150 AC_SUBST(IFSUBTYPE,$IFSUBTYPE)
151 AC_DEFINE_UNQUOTED(IFTYPE,"$IFTYPE",[kernel interface type])
152 AC_DEFINE_UNQUOTED(IFSUBTYPE,"$IFSUBTYPE",[kernel interface subtype])
153
154 AC_CACHE_SAVE
155
156 dnl Checks for libraries.
157
158 AC_LANG(C++)
159 AC_CHECK_HEADERS(tr1/unordered_map ext/hash_map clocale)
160
161 dnl Checks for header files.
162 AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \
163 sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \
164 sys/mman.h netinet/in.h])
165 AC_CHECK_HEADERS([arpa/inet.h net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h netinet/in_systm.h], [], [],
166 [
167 #include <sys/types.h>
168 #include <sys/socket.h>
169 #ifdef HAVE_NETINET_IN_H
170 # include <netinet/in.h>
171 #endif
172 #ifdef HAVE_ARPA_INET_H
173 # include <arpa/inet.h>
174 #endif
175 #ifdef HAVE_NETINET_IN_SYSTM_H
176 # include <netinet/in_systm.h>
177 #endif
178 ])
179
180 dnl Checks for typedefs, structures, and compiler characteristics.
181 AC_C_CONST
182 AC_TYPE_PID_T
183 AC_TYPE_SIZE_T
184 AC_CHECK_HEADERS_ONCE([sys/time.h])
185
186 AC_STRUCT_TM
187
188 AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
189 [
190 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
191 #include <sys/socket.h>]], [[socklen_t len = 42; return len;]])],[ac_cv_type_socklen_t=yes],[ac_cv_type_socklen_t=no])
192 ])
193 if test $ac_cv_type_socklen_t = yes; then
194 AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available])
195 fi
196
197 AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo,
198 [
199 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
200 #include <sys/socket.h>
201 #include <netdb.h>]], [[struct addrinfo ai; ai.ai_family = AF_INET; return ai.ai_family;]])],[ac_cv_struct_addrinfo=yes],[ac_cv_struct_addrinfo=no])
202 ])
203 if test $ac_cv_struct_addrinfo = yes; then
204 AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
205 fi
206
207 AC_LANG_PUSH(C)
208
209 dnl argl, could somebody catapult darwin into the 21st century???
210 AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)
211
212 AC_FUNC_ALLOCA
213
214 dnl Support for SunOS
215
216 AC_CHECK_FUNC(socket, [], [
217 AC_CHECK_LIB(socket, connect)
218 ])
219 AC_CHECK_FUNC(gethostbyname, [], [
220 AC_CHECK_LIB(nsl, gethostbyname)
221 ])
222
223 dnl libev support
224 m4_include([libev/libev.m4])
225
226 AC_LANG_POP
227
228 dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])
229
230 AC_CACHE_SAVE
231
232 dnl These are defined in files in m4/
233 tinc_TUNTAP
234
235 PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1])
236
237 AC_ARG_ENABLE(threads,
238 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)],
239 [try_threads=$enableval],
240 [try_threads=yes]
241 )
242
243 if test "x$try_threads" = xyes; then
244 AC_CHECK_HEADER(pthread.h,[
245 LIBS="$LIBS -lpthread"
246 AC_COMPILE_IFELSE(
247 [AC_LANG_PROGRAM([#include <pthread.h>], [pthread_t id; pthread_create (&id, 0, 0, 0);])],
248 [AC_DEFINE_UNQUOTED(ENABLE_PTHREADS, 1, [POSIX thread support.])]
249 )
250 ])
251 fi
252
253 AC_ARG_ENABLE(static-daemon,
254 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
255 [LDFLAGS_DAEMON=-static]
256 )
257 AC_SUBST(LDFLAGS_DAEMON)
258
259 dnl AC_ARG_ENABLE(rohc,
260 dnl [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
261 dnl [
262 dnl echo
263 dnl echo "**********************************************************************"
264 dnl echo "**********************************************************************"
265 dnl echo "**** --enable-rohc is highly experimental, do not use ****************"
266 dnl echo "**********************************************************************"
267 dnl echo "**********************************************************************"
268 dnl echo
269 dnl rohc=true
270 dnl AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
271 dnl ]
272 dnl )
273
274 AM_CONDITIONAL(ROHC, test x$rohc = xtrue)
275
276 dnl AC_ARG_ENABLE(bridging,
277 dnl [AS_HELP_STRING(--enable-bridging,enable bridging support (default disabled).)],
278 dnl AC_DEFINE_UNQUOTED(ENABLE_BRIDGING, 1, [bridging support.])
279 dnl )
280
281 ICMP=1
282 AC_ARG_ENABLE(icmp,
283 [AS_HELP_STRING(--disable-icmp,enable icmp protocol support (default enabled).)],
284 if test "x$enableval" = xno; then
285 ICMP=0
286 fi
287 )
288 if test "x$ICMP" = x1; then
289 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
290 fi
291
292 TCP=1
293 AC_ARG_ENABLE(tcp,
294 [AS_HELP_STRING(--disable-tcp,enable tcp protocol support (default enabled).)],
295 if test "x$enableval" = xno; then
296 TCP=0
297 fi
298 )
299 if test "x$TCP" = x1; then
300 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
301 fi
302
303 HTTP=1
304 AC_ARG_ENABLE(http-proxy,
305 [AS_HELP_STRING(--disable-http-proxy,enable http proxy connect support (default enabled).)],
306 if test "x$enableval" = xno; then
307 HTTP=0
308 fi
309 )
310 if test "x$HTTP" = x1; then
311 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
312 fi
313
314 AC_ARG_ENABLE(dns,
315 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (default disabled).)],
316 [
317 AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
318 AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
319
320 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
321 ]
322 )
323
324 RSA=3072
325 AC_ARG_ENABLE(rsa-length,
326 [AS_HELP_STRING(--enable-rsa-length=BITS,[
327 use BITS rsa keys (default 3072). Allowed values are 2048-10240.])],
328 RSA=$enableval
329 )
330 AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.])
331
332 HMACSIZE=12
333 AC_ARG_ENABLE(hmac-length,
334 [AS_HELP_STRING(--enable-hmac-length=BYTES,[
335 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
336 HMACSIZE=$enableval
337 )
338 AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.])
339
340 MTU=1500
341 AC_ARG_ENABLE(max-mtu,
342 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
343 MTU=$enableval
344 )
345 AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.])
346
347 COMPRESS=1
348 AC_ARG_ENABLE(compression,
349 [AS_HELP_STRING(--disable-compression,Disable compression support.)],
350 if test "x$enableval" = xno; then
351 COMPRESS=0
352 fi
353 )
354 AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
355
356 CIPHER=aes_128_ctr
357 AC_ARG_ENABLE(cipher,
358 [AS_HELP_STRING(--enable-cipher=CIPHER,[
359 Select the symmetric cipher (default "aes-128").
360 Must be one of "aes-128" (rijndael), "aes-192", or "aes-256".])],
361 #if test "x$enableval" = xbf ; then CIPHER=bf_ctr ; fi
362 if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_ctr ; fi
363 if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_ctr ; 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$enableval" = xcamellia-256; then CIPHER=camellia_256_ctr; fi
367 )
368 AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
369
370 HMAC=sha1
371 AC_ARG_ENABLE(hmac-digest,
372 [AS_HELP_STRING(--enable-hmac-digest=HMAC,[
373 Select the HMAC digest algorithm to use (default "sha1"). Must be one of
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$enableval" = xripemd160; then HMAC=ripemd160; fi
380 )
381 AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.])
382
383 AUTH=sha512
384 AC_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$enableval" = xwhirlpool; then AUTH=whirlpool; fi
389 if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi
390 if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi
391 )
392 AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.])
393
394 if $CXX -v --help 2>&1 | grep -q fno-rtti; then
395 CXXFLAGS="$CXXFLAGS -fno-rtti"
396 fi
397
398 #if $CXX -v --help 2>&1 | grep -q fexceptions; then
399 # CXXFLAGS="$CXXFLAGS -fno-exceptions"
400 #fi
401
402 LIBS="$EXTRA_LIBS $LIBS"
403
404 dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
405 dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
406 dnl fi
407 dnl
408 dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
409 dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
410 dnl fi
411
412 AC_SUBST(AM_CPPFLAGS)
413
414 AC_CONFIG_FILES([Makefile po/Makefile.in
415 src/Makefile
416 doc/Makefile
417 lib/Makefile
418 m4/Makefile
419 ])
420 AC_OUTPUT
421
422 echo
423 echo "***"
424 echo "*** Configuration Summary"
425 echo "***"
426 echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
427 echo "*** RSA size: $RSA"
428 echo "*** Cipher used: $CIPHER"
429 echo "*** Digest used: $DIGEST"
430 echo "*** Authdigest: $AUTH"
431 echo "*** HMAC length: $HMAC"
432 echo "*** Max. MTU: $MTU"
433
434 echo "***"
435 echo "*** Enable options:"
436 grep ENABLE_ config.h | sed -e 's/^/*** /'
437
438 if test "$HMACSIZE" -lt 12; then
439 echo "***"
440 echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure"
441 fi
442
443 echo "***"
444 echo
445
446 if 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
475
476 EOF
477 fi
478
479