forked from OpenVPN/openvpn
-
Notifications
You must be signed in to change notification settings - Fork 0
/
configure.ac
1562 lines (1418 loc) · 43.9 KB
/
configure.ac
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
dnl OpenVPN -- An application to securely tunnel IP networks
dnl over a single UDP port, with support for SSL/TLS-based
dnl session authentication and key exchange,
dnl packet encryption, packet authentication, and
dnl packet compression.
dnl
dnl Copyright (C) 2002-2024 OpenVPN Inc <[email protected]>
dnl Copyright (C) 2006-2012 Alon Bar-Lev <[email protected]>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License along
dnl with this program; if not, write to the Free Software Foundation, Inc.,
dnl 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.60)
m4_include(version.m4)
AC_INIT([PRODUCT_NAME], [PRODUCT_VERSION], [PRODUCT_BUGREPORT], [PRODUCT_TARNAME])
m4_include(compat.m4)
AC_DEFINE([OPENVPN_VERSION_RESOURCE], [PRODUCT_VERSION_RESOURCE], [Version in windows resource format])
AC_SUBST([OPENVPN_VERSION_MAJOR], [PRODUCT_VERSION_MAJOR], [OpenVPN major version])
AC_SUBST([OPENVPN_VERSION_MINOR], [PRODUCT_VERSION_MINOR], [OpenVPN minor version])
AC_SUBST([OPENVPN_VERSION_PATCH], [PRODUCT_VERSION_PATCH], [OpenVPN patch level - may be a string or integer])
AC_DEFINE([OPENVPN_VERSION_MAJOR], [PRODUCT_VERSION_MAJOR], [OpenVPN major version - integer])
AC_DEFINE([OPENVPN_VERSION_MINOR], [PRODUCT_VERSION_MINOR], [OpenVPN minor version - integer])
AC_DEFINE([OPENVPN_VERSION_PATCH], ["PRODUCT_VERSION_PATCH"], [OpenVPN patch level - may be a string or integer])
AC_CONFIG_AUX_DIR([.])
AC_CONFIG_HEADERS([config.h include/openvpn-plugin.h])
AC_CONFIG_SRCDIR([src/openvpn/syshead.h])
AC_CONFIG_MACRO_DIR([m4])
dnl Automake 1.14+ warns if sources are in sub-directories but subdir-objects
dnl options is not enabled. However, automake before 1.15a has a bug that causes
dnl variable expansion to fail in foo_SOURCES when this option is used.
dnl As most of our build systems are now likely to use automake 1.16+ add a
dnl work around to conditionally add subdir-objects option.
m4_define([subdir_objects], [
m4_esyscmd([automake --version |
head -1 |
awk '{split ($NF,a,"."); if (a[1] == 1 && a[2] >= 16) { print "subdir-objects" }}'
])
])
# This foreign option prevents autoreconf from overriding our COPYING and
# INSTALL targets:
AM_INIT_AUTOMAKE(foreign subdir_objects 1.9) dnl NB: Do not [quote] this parameter.
AM_SILENT_RULES([yes])
AC_CANONICAL_HOST
AC_USE_SYSTEM_EXTENSIONS
AC_ARG_ENABLE(
[lzo],
[AS_HELP_STRING([--disable-lzo], [disable LZO compression support @<:@default=yes@:>@])],
,
[enable_lzo="yes"]
)
AC_ARG_ENABLE(
[lz4],
[AS_HELP_STRING([--disable-lz4], [disable LZ4 compression support @<:@default=yes@:>@])],
[enable_lz4="$enableval"],
[enable_lz4="yes"]
)
AC_ARG_ENABLE(
[comp-stub],
[AS_HELP_STRING([--enable-comp-stub], [disable compression support but still allow limited interoperability with compression-enabled peers @<:@default=no@:>@])],
[enable_comp_stub="$enableval"],
[enable_comp_stub="no"]
)
AC_ARG_ENABLE(
[ofb-cfb],
[AS_HELP_STRING([--disable-ofb-cfb], [disable support for OFB and CFB cipher modes @<:@default=yes@:>@])],
,
[enable_crypto_ofb_cfb="yes"]
)
AC_ARG_ENABLE(
[x509-alt-username],
[AS_HELP_STRING([--enable-x509-alt-username], [enable the --x509-username-field feature @<:@default=no@:>@])],
,
[enable_x509_alt_username="no"]
)
AC_ARG_ENABLE(
[ntlm],
[AS_HELP_STRING([--disable-ntlm], [disable NTLMv2 proxy support @<:@default=yes@:>@])],
,
[enable_ntlm="yes"]
)
AC_ARG_ENABLE(
[plugins],
[AS_HELP_STRING([--disable-plugins], [disable plug-in support @<:@default=yes@:>@])],
,
[enable_plugins="yes"]
)
AC_ARG_ENABLE(
[management],
[AS_HELP_STRING([--disable-management], [disable management server support @<:@default=yes@:>@])],
,
[enable_management="yes"]
)
AC_ARG_ENABLE(
[pkcs11],
[AS_HELP_STRING([--enable-pkcs11], [enable pkcs11 support @<:@default=no@:>@])],
,
[enable_pkcs11="no"]
)
AC_ARG_ENABLE(
[fragment],
[AS_HELP_STRING([--disable-fragment], [disable internal fragmentation support (--fragment) @<:@default=yes@:>@])],
,
[enable_fragment="yes"]
)
AC_ARG_ENABLE(
[port-share],
[AS_HELP_STRING([--disable-port-share], [disable TCP server port-share support (--port-share) @<:@default=yes@:>@])],
,
[enable_port_share="yes"]
)
AC_ARG_ENABLE(
[debug],
[AS_HELP_STRING([--disable-debug], [disable debugging support (disable gremlin and verb 7+ messages) @<:@default=yes@:>@])],
,
[enable_debug="yes"]
)
AC_ARG_ENABLE(
[small],
[AS_HELP_STRING([--enable-small], [enable smaller executable size (disable OCC, usage message, and verb 4 parm list) @<:@default=no@:>@])],
,
[enable_small="no"]
)
AC_ARG_ENABLE(
[dco],
[AS_HELP_STRING([--disable-dco], [disable data channel offload support using the ovpn-dco kernel module @<:@default=yes@:>@ on Linux/FreeBSD, can't disable on Windows])],
,
[
case "$host" in
*-*-linux*)
enable_dco="auto"
;;
*-*-freebsd*)
enable_dco="auto"
;;
*)
# note that this does not disable it for Windows
enable_dco="no"
;;
esac
]
)
AC_ARG_ENABLE(
[iproute2],
[AS_HELP_STRING([--enable-iproute2], [enable support for iproute2 (disables DCO) @<:@default=no@:>@])],
,
[enable_iproute2="no"]
)
AC_ARG_ENABLE(
[plugin-auth-pam],
[AS_HELP_STRING([--disable-plugin-auth-pam], [disable auth-pam plugin @<:@default=platform specific@:>@])],
,
[
case "$host" in
*-*-openbsd*) enable_plugin_auth_pam="no";;
*-mingw*) enable_plugin_auth_pam="no";;
*) enable_plugin_auth_pam="yes";;
esac
]
)
AC_ARG_ENABLE(
[plugin-down-root],
[AS_HELP_STRING([--disable-plugin-down-root], [disable down-root plugin @<:@default=platform specific@:>@])],
,
[
case "$host" in
*-mingw*) enable_plugin_down_root="no";;
*) enable_plugin_down_root="yes";;
esac
]
)
AC_ARG_ENABLE(
[pam-dlopen],
[AS_HELP_STRING([--enable-pam-dlopen], [dlopen libpam @<:@default=no@:>@])],
,
[enable_pam_dlopen="no"]
)
AC_ARG_ENABLE(
[strict],
[AS_HELP_STRING([--enable-strict], [enable strict compiler warnings (debugging option) @<:@default=no@:>@])],
,
[enable_strict="no"]
)
AC_ARG_ENABLE(
[pedantic],
[AS_HELP_STRING([--enable-pedantic], [enable pedantic compiler warnings, will not generate a working executable (debugging option) @<:@default=no@:>@])],
,
[enable_pedantic="no"]
)
AC_ARG_ENABLE(
[werror],
[AS_HELP_STRING([--enable-werror], [promote compiler warnings to errors, will cause builds to fail if the compiler issues warnings (debugging option) @<:@default=no@:>@])],
,
[enable_werror="no"]
)
AC_ARG_ENABLE(
[strict-options],
[AS_HELP_STRING([--enable-strict-options], [enable strict options check between peers (debugging option) @<:@default=no@:>@])],
,
[enable_strict_options="no"]
)
AC_ARG_ENABLE(
[selinux],
[AS_HELP_STRING([--enable-selinux], [enable SELinux support @<:@default=no@:>@])],
,
[enable_selinux="no"]
)
AC_ARG_ENABLE(
[systemd],
[AS_HELP_STRING([--enable-systemd], [enable systemd support @<:@default=no@:>@])],
,
[enable_systemd="no"]
)
AC_ARG_ENABLE(
[async-push],
[AS_HELP_STRING([--enable-async-push], [enable async-push support for plugins providing deferred authentication @<:@default=no@:>@])],
,
[enable_async_push="no"]
)
AC_ARG_WITH(
[special-build],
[AS_HELP_STRING([--with-special-build=STRING], [specify special build string])],
[test -n "${withval}" && AC_DEFINE_UNQUOTED([CONFIGURE_SPECIAL_BUILD], ["${withval}"], [special build string])]
)
AC_ARG_WITH(
[mem-check],
[AS_HELP_STRING([--with-mem-check=TYPE], [build with debug memory checking, TYPE=no|dmalloc|valgrind|ssl @<:@default=no@:>@])],
[
case "${withval}" in
dmalloc|valgrind|ssl|no) ;;
*) AC_MSG_ERROR([bad value ${withval} for --mem-check]) ;;
esac
],
[with_mem_check="no"]
)
AC_ARG_WITH(
[crypto-library],
[AS_HELP_STRING([--with-crypto-library=library], [build with the given crypto library, TYPE=openssl|mbedtls|wolfssl @<:@default=openssl@:>@])],
[
case "${withval}" in
openssl|mbedtls|wolfssl) ;;
*) AC_MSG_ERROR([bad value ${withval} for --with-crypto-library]) ;;
esac
],
[with_crypto_library="openssl"]
)
AC_ARG_ENABLE(
[wolfssl-options-h],
[AS_HELP_STRING([--disable-wolfssl-options-h], [Disable including options.h in wolfSSL @<:@default=yes@:>@])],
,
[enable_wolfssl_options_h="yes"]
)
AC_ARG_WITH(
[openssl-engine],
[AS_HELP_STRING([--with-openssl-engine], [enable engine support with OpenSSL. Default enabled for OpenSSL < 3.0, auto,yes,no @<:@default=auto@:>@])],
[
case "${withval}" in
auto|yes|no) ;;
*) AC_MSG_ERROR([bad value ${withval} for --with-engine]) ;;
esac
],
[with_openssl_engine="auto"]
)
AC_ARG_VAR([PLUGINDIR], [Path of plug-in directory @<:@default=LIBDIR/openvpn/plugins@:>@])
if test -n "${PLUGINDIR}"; then
plugindir="${PLUGINDIR}"
else
plugindir="\${libdir}/openvpn/plugins"
fi
AC_DEFINE_UNQUOTED([TARGET_ALIAS], ["${host}"], [A string representing our host])
AM_CONDITIONAL([TARGET_LINUX], [false])
case "$host" in
*-*-linux*)
AC_DEFINE([TARGET_LINUX], [1], [Are we running on Linux?])
AM_CONDITIONAL([TARGET_LINUX], [true])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["L"], [Target prefix])
have_sitnl="yes"
pkg_config_required="yes"
;;
*-*-solaris*)
AC_DEFINE([TARGET_SOLARIS], [1], [Are we running on Solaris?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["S"], [Target prefix])
CPPFLAGS="$CPPFLAGS -D_XPG4_2"
test -x /bin/bash && SHELL="/bin/bash"
;;
*-*-openbsd*)
AC_DEFINE([TARGET_OPENBSD], [1], [Are we running on OpenBSD?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["O"], [Target prefix])
;;
*-*-freebsd*)
AC_DEFINE([TARGET_FREEBSD], [1], [Are we running on FreeBSD?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["F"], [Target prefix])
;;
*-*-netbsd*)
AC_DEFINE([TARGET_NETBSD], [1], [Are we running NetBSD?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["N"], [Target prefix])
;;
*-*-darwin*)
AC_DEFINE([TARGET_DARWIN], [1], [Are we running on Mac OS X?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["M"], [Target prefix])
have_tap_header="yes"
ac_cv_type_struct_in_pktinfo=no
;;
*-mingw*)
AC_DEFINE([TARGET_WIN32], [1], [Are we running WIN32?])
AC_DEFINE([ENABLE_DCO], [1], [DCO is always enabled on Windows])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["W"], [Target prefix])
CPPFLAGS="${CPPFLAGS} -DWIN32_LEAN_AND_MEAN"
CPPFLAGS="${CPPFLAGS} -DNTDDI_VERSION=NTDDI_VISTA -D_WIN32_WINNT=_WIN32_WINNT_VISTA"
WIN32=yes
;;
*-*-dragonfly*)
AC_DEFINE([TARGET_DRAGONFLY], [1], [Are we running on DragonFlyBSD?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["D"], [Target prefix])
;;
*-aix*)
AC_DEFINE([TARGET_AIX], [1], [Are we running AIX?])
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["A"], [Target prefix])
ROUTE="/usr/sbin/route"
have_tap_header="yes"
ac_cv_header_net_if_h="no" # exists, but breaks things
;;
*)
AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["X"], [Target prefix])
have_tap_header="yes"
;;
esac
AM_CONDITIONAL([CROSS_COMPILING], test "${cross_compiling}" = "yes")
PKG_PROG_PKG_CONFIG
# Add variable to print if pkg-config is found or not. Users often miss that
if test "${PKG_CONFIG}" = ""; then
if test "${pkg_config_required}" = "yes"; then
AC_MSG_ERROR([pkg-config is required])
fi
pkg_config_found="(not found)"
else
pkg_config_found="(${PKG_CONFIG})"
fi
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_SED
AC_PROG_MAKE_SET
AC_ARG_VAR([IFCONFIG], [full path to ipconfig utility])
AC_ARG_VAR([ROUTE], [full path to route utility])
AC_ARG_VAR([IPROUTE], [full path to ip utility])
AC_ARG_VAR([NETSTAT], [path to netstat utility]) # tests
AC_ARG_VAR([GIT], [path to git utility])
AC_ARG_VAR([SYSTEMD_ASK_PASSWORD], [path to systemd-ask-password utility])
AC_ARG_VAR([SYSTEMD_UNIT_DIR], [Path of systemd unit directory @<:@default=LIBDIR/systemd/system@:>@])
AC_ARG_VAR([TMPFILES_DIR], [Path of tmpfiles directory @<:@default=LIBDIR/tmpfiles.d@:>@])
AC_PATH_PROGS([IFCONFIG], [ifconfig],, [$PATH:/usr/local/sbin:/usr/sbin:/sbin])
AC_PATH_PROGS([ROUTE], [route],, [$PATH:/usr/local/sbin:/usr/sbin:/sbin])
AC_PATH_PROGS([IPROUTE], [ip],, [$PATH:/usr/local/sbin:/usr/sbin:/sbin])
AC_PATH_PROGS([SYSTEMD_ASK_PASSWORD], [systemd-ask-password],, [$PATH:/usr/local/bin:/usr/bin:/bin])
AC_CHECK_PROGS([NETSTAT], [netstat], [netstat], [$PATH:/usr/local/sbin:/usr/sbin:/sbin:/etc]) # tests
AC_CHECK_PROGS([GIT], [git]) # optional
AC_DEFINE_UNQUOTED([IFCONFIG_PATH], ["$IFCONFIG"], [Path to ifconfig tool])
AC_DEFINE_UNQUOTED([IPROUTE_PATH], ["$IPROUTE"], [Path to iproute tool])
AC_DEFINE_UNQUOTED([ROUTE_PATH], ["$ROUTE"], [Path to route tool])
AC_DEFINE_UNQUOTED([SYSTEMD_ASK_PASSWORD_PATH], ["$SYSTEMD_ASK_PASSWORD"], [Path to systemd-ask-password tool])
#
# man page generation - based on python-docutils
#
AC_ARG_VAR([RST2MAN], [path to rst2man utility])
AC_ARG_VAR([RST2HTML], [path to rst2html utility])
AC_CHECK_PROGS([RST2MAN], [rst2man rst2man.py])
AC_CHECK_PROGS([RST2HTML], [rst2html rst2html.py])
AM_CONDITIONAL([HAVE_PYDOCUTILS], [test "${RST2MAN}" -a "${RST2HTML}"])
# Set -std=c11 unless user already specified a -std=
case "${CFLAGS}" in
*-std=*) ;;
*) CFLAGS="${CFLAGS} -std=c11" ;;
esac
#
# Libtool
#
ifdef(
[LT_INIT],
[
LT_INIT([win32-dll])
LT_LANG([Windows Resource])
],
[
AC_LIBTOOL_WIN32_DLL
AC_LIBTOOL_RC
AC_PROG_LIBTOOL
]
)
AC_C_INLINE
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AX_TYPE_SOCKLEN_T
AC_CHECK_SIZEOF([unsigned int])
AC_CHECK_SIZEOF([unsigned long])
AC_CHECK_HEADERS([ \
fcntl.h io.h \
sys/types.h sys/socket.h \
unistd.h dlfcn.h \
netinet/in.h \
netinet/tcp.h arpa/inet.h netdb.h \
])
AC_CHECK_HEADERS([ \
sys/time.h sys/ioctl.h sys/stat.h \
sys/mman.h sys/file.h sys/wait.h \
unistd.h libgen.h stropts.h \
syslog.h pwd.h grp.h termios.h \
sys/sockio.h sys/uio.h linux/sockios.h \
linux/types.h linux/errqueue.h poll.h sys/epoll.h err.h \
])
SOCKET_INCLUDES="
#include <stdlib.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef _WIN32
#include <windows.h>
#endif
#ifdef _WIN32
#include <winsock2.h>
#endif
#ifdef _WIN32
#include <ws2tcpip.h>
#endif
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
"
AC_CHECK_HEADERS(
[net/if.h netinet/ip.h resolv.h sys/un.h net/if_utun.h sys/kern_control.h],
,
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPES(
[in_addr_t],
,
[AC_DEFINE([in_addr_t], [uint32_t], [Workaround missing in_addr_t])],
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPES(
[in_port_t],
,
[AC_DEFINE([in_port_t], [uint16_t], [Workaround missing in_port_t])],
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPE(
[struct iphdr],
[AC_DEFINE([HAVE_IPHDR], [1], [struct iphdr needed for IPv6 support])],
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPE(
[struct msghdr],
[AC_DEFINE([HAVE_MSGHDR], [1], [struct msghdr needed for extended socket error support])],
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPE(
[struct cmsghdr],
[AC_DEFINE([HAVE_CMSGHDR], [1], [struct cmsghdr needed for extended socket error support])],
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPE(
[struct in_pktinfo],
[AC_DEFINE([HAVE_IN_PKTINFO], [1], [struct in_pktinfo needed for IP_PKTINFO support])],
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPE(
[sa_family_t],
[AC_DEFINE([HAVE_SA_FAMILY_T], [1], [sa_family_t, needed to hold AF_* info])],
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_MEMBER(
[struct in_pktinfo.ipi_spec_dst],
[AC_DEFINE([HAVE_IPI_SPEC_DST], [1], [struct in_pktinfo.ipi_spec_dst needed for IP_PKTINFO support])],
,
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_TYPE(
[struct sockaddr_in6],
,
[AC_MSG_ERROR([struct sockaddr_in6 not found, needed for ipv6 transport support.])],
[[${SOCKET_INCLUDES}]]
)
AC_CHECK_DECLS(
[SO_MARK],
,
,
[[${SOCKET_INCLUDES}]]
)
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -Wl,--wrap=exit"
AC_MSG_CHECKING([linker supports --wrap])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[
void exit(int);
void __real_exit(int);
void __wrap_exit(int i) {
__real_exit(i);
}
]],
[[
exit(0);
]]
)],
[
AC_MSG_RESULT([yes])
have_ld_wrap_support=yes
],
[AC_MSG_RESULT([no])],
)
LDFLAGS="$saved_LDFLAGS"
dnl We emulate signals in Windows
AC_CHECK_DECLS(
[SIGHUP],
,
[AC_DEFINE([SIGHUP], [1], [SIGHUP replacement])],
[[
#include <signal.h>
]]
)
AC_CHECK_DECLS(
[SIGINT],
,
[AC_DEFINE([SIGINT], [2], [SIGINT replacement])],
[[
#include <signal.h>
]]
)
AC_CHECK_DECLS(
[SIGUSR1],
,
[AC_DEFINE([SIGUSR1], [10], [SIGUSR1 replacement])],
[[
#include <signal.h>
]]
)
AC_CHECK_DECLS(
[SIGUSR2],
,
[AC_DEFINE([SIGUSR2], [12], [SIGUSR2 replacement])],
[[
#include <signal.h>
]]
)
AC_CHECK_DECLS(
[SIGTERM],
,
[AC_DEFINE([SIGTERM], [15], [SIGTERM replacement])],
[[
#include <signal.h>
]]
)
AC_FUNC_FORK
AC_CHECK_FUNCS([ \
daemon chroot getpwnam setuid nice system dup dup2 \
syslog openlog mlockall getrlimit getgrnam setgid \
setgroups flock time gettimeofday \
setsid chdir \
chsize ftruncate execve getpeereid basename dirname access \
epoll_create strsep \
])
AC_CHECK_LIB(
[dl],
[dlopen],
[DL_LIBS="-ldl"]
)
AC_SUBST([DL_LIBS])
AC_CHECK_LIB(
[nsl],
[inet_ntoa],
[SOCKETS_LIBS="${SOCKETS_LIBS} -lnsl"]
)
AC_CHECK_LIB(
[socket],
[socket],
[SOCKETS_LIBS="${SOCKETS_LIBS} -lsocket"]
)
AC_CHECK_LIB(
[resolv],
[gethostbyname],
[SOCKETS_LIBS="${SOCKETS_LIBS} -lresolv"]
)
AC_SUBST([SOCKETS_LIBS])
old_LIBS="${LIBS}"
LIBS="${LIBS} ${SOCKETS_LIBS}"
AC_CHECK_FUNCS([sendmsg recvmsg])
LIBS="${old_LIBS}"
# we assume res_init() always exist, but need to find out *where*...
AC_SEARCH_LIBS(__res_init, resolv bind, ,
AC_SEARCH_LIBS(res_9_init, resolv bind, ,
AC_SEARCH_LIBS(res_init, resolv bind, , )))
AC_ARG_VAR([TAP_CFLAGS], [C compiler flags for tap])
old_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} ${TAP_CFLAGS}"
AC_CHECK_HEADERS(
[ \
net/if_tun.h net/tun/if_tun.h \
linux/if_tun.h \
tap-windows.h \
],
[have_tap_header="yes"]
)
AC_CHECK_DECLS(
[TUNSETPERSIST],
[AC_DEFINE([ENABLE_FEATURE_TUN_PERSIST], [1], [We have persist tun capability])],
,
[[
#ifdef HAVE_LINUX_IF_TUN_H
#include <linux/if_tun.h>
#endif
]]
)
CFLAGS="${old_CFLAGS}"
test "${have_tap_header}" = "yes" || AC_MSG_ERROR([no tap header could be found])
AC_CHECK_LIB(
[selinux],
[setcon],
[SELINUX_LIBS="-lselinux"]
)
AC_SUBST([SELINUX_LIBS])
AC_ARG_VAR([LIBPAM_CFLAGS], [C compiler flags for libpam])
AC_ARG_VAR([LIBPAM_LIBS], [linker flags for libpam])
if test -z "${LIBPAM_LIBS}"; then
AC_CHECK_LIB(
[pam],
[pam_start],
[LIBPAM_LIBS="-lpam"]
)
fi
case "${with_mem_check}" in
valgrind)
AC_CHECK_HEADERS(
[valgrind/memcheck.h],
[
CFLAGS="${CFLAGS} -g -fno-inline"
AC_DEFINE(
[USE_VALGRIND],
[1],
[Use valgrind memory debugging library]
)
],
[AC_MSG_ERROR([valgrind headers not found.])]
)
;;
dmalloc)
AC_CHECK_HEADERS(
[dmalloc.h],
[AC_CHECK_LIB(
[dmalloc],
[malloc],
[
LIBS="${LIBS} -ldmalloc"
AC_DEFINE(
[DMALLOC],
[1],
[Use dmalloc memory debugging library]
)
],
[AC_MSG_ERROR([dmalloc library not found.])]
)],
[AC_MSG_ERROR([dmalloc headers not found.])]
)
;;
ssl)
AC_CHECK_LIB(
[ssl],
[CRYPTO_mem_ctrl],
[
AC_DEFINE(
[CRYPTO_MDEBUG],
[1],
[Use memory debugging function in OpenSSL]
)
AC_MSG_NOTICE([NOTE: OpenSSL library must be compiled with CRYPTO_MDEBUG])
],
[AC_MSG_ERROR([Memory Debugging function in OpenSSL library not found.])]
)
;;
esac
PKG_CHECK_MODULES(
[PKCS11_HELPER],
[libpkcs11-helper-1 >= 1.11],
[have_pkcs11_helper="yes"],
[]
)
if test "$enable_dco" != "no"; then
enable_dco_arg="$enable_dco"
if test "${enable_iproute2}" = "yes"; then
AC_MSG_WARN([DCO cannot be enabled when using iproute2])
enable_dco="no"
fi
case "$host" in
*-*-linux*)
if test "$enable_dco" = "no"; then
if test "$enable_dco_arg" = "auto"; then
AC_MSG_WARN([DCO support disabled])
else
AC_MSG_ERROR([DCO support can't be enabled])
fi
else
dnl
dnl Include generic netlink library used to talk to ovpn-dco
dnl
PKG_CHECK_MODULES([LIBNL_GENL],
[libnl-genl-3.0 >= 3.4.0],
[have_libnl="yes"],
[
AC_MSG_ERROR([libnl-genl-3.0 package not found or too old. Is the development package and pkg-config ${pkg_config_found} installed? Must be version 3.4.0 or newer for DCO])
]
)
OPTIONAL_LIBNL_GENL_CFLAGS="${LIBNL_GENL_CFLAGS}"
OPTIONAL_LIBNL_GENL_LIBS="${LIBNL_GENL_LIBS}"
AC_DEFINE(ENABLE_DCO, 1, [Enable shared data channel offload])
AC_MSG_NOTICE([Enabled ovpn-dco support for Linux])
fi
;;
*-*-freebsd*)
AC_CHECK_HEADERS([net/if_ovpn.h],
[
LIBS="${LIBS} -lnv"
AC_DEFINE(ENABLE_DCO, 1, [Enable data channel offload for FreeBSD])
AC_MSG_NOTICE([Enabled ovpn-dco support for FreeBSD])
],
[
enable_dco="no"
AC_MSG_WARN([DCO header not found.])
]
)
if test "$enable_dco" = "no"; then
if test "$enable_dco_arg" = "auto"; then
AC_MSG_WARN([DCO support disabled])
else
AC_MSG_ERROR([DCO support can't be enabled])
fi
fi
;;
*-mingw*)
AC_MSG_NOTICE([NOTE: --enable-dco ignored on Windows because it's always enabled])
;;
*)
AC_MSG_NOTICE([Ignoring --enable-dco on non supported platform])
;;
esac
fi
dnl
dnl Depend on libcap-ng on Linux
dnl
case "$host" in
*-*-linux*)
PKG_CHECK_MODULES([LIBCAPNG],
[libcap-ng],
[],
[AC_MSG_ERROR([libcap-ng package not found. Is the development package and pkg-config ${pkg_config_found} installed?])]
)
AC_CHECK_HEADER([sys/prctl.h],,[AC_MSG_ERROR([sys/prctl.h not found!])])
OPTIONAL_LIBCAPNG_CFLAGS="${LIBCAPNG_CFLAGS}"
OPTIONAL_LIBCAPNG_LIBS="${LIBCAPNG_LIBS}"
AC_DEFINE(HAVE_LIBCAPNG, 1, [Enable libcap-ng support])
;;
esac
if test "${with_crypto_library}" = "openssl"; then
AC_ARG_VAR([OPENSSL_CFLAGS], [C compiler flags for OpenSSL])
AC_ARG_VAR([OPENSSL_LIBS], [linker flags for OpenSSL])
if test -z "${OPENSSL_CFLAGS}" -a -z "${OPENSSL_LIBS}"; then
# if the user did not explicitly specify flags, try to autodetect
PKG_CHECK_MODULES(
[OPENSSL],
[openssl >= 1.1.0],
[have_openssl="yes"],
[AC_MSG_WARN([OpenSSL not found by pkg-config ${pkg_config_found}])] # If this fails, we will do another test next
)
OPENSSL_LIBS=${OPENSSL_LIBS:--lssl -lcrypto}
fi
saved_CFLAGS="${CFLAGS}"
saved_LIBS="${LIBS}"
CFLAGS="${CFLAGS} ${OPENSSL_CFLAGS}"
LIBS="${LIBS} ${OPENSSL_LIBS}"
# If pkgconfig check failed or OPENSSL_CFLAGS/OPENSSL_LIBS env vars
# are used, check the version directly in the OpenSSL include file
if test "${have_openssl}" != "yes"; then
AC_MSG_CHECKING([additionally if OpenSSL is available and version >= 1.1.0])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <openssl/opensslv.h>
]],
[[
/* Version encoding: MNNFFPPS - see opensslv.h for details */
#if OPENSSL_VERSION_NUMBER < 0x10100000L
#error OpenSSL too old
#endif
]]
)],
[AC_MSG_RESULT([ok])],
[AC_MSG_ERROR([OpenSSL version too old])]
)
fi
AC_CHECK_FUNCS([SSL_CTX_new],
,
[AC_MSG_ERROR([openssl check failed])]
)
if test "${with_openssl_engine}" = "auto"; then
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <openssl/opensslv.h>
#include <openssl/opensslconf.h>
]],
[[
/* Version encoding: MNNFFPPS - see opensslv.h for details */
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
#error Engine support disabled by default in OpenSSL 3.0+
#endif
/* BoringSSL and LibreSSL >= 3.8.1 removed engine support */
#ifdef OPENSSL_NO_ENGINE
#error Engine support disabled in openssl/opensslconf.h
#endif
]]
)],
[have_openssl_engine="yes"],
[have_openssl_engine="no"]
)
if test "${have_openssl_engine}" = "yes"; then
AC_CHECK_FUNCS(
[ \
ENGINE_load_builtin_engines \
ENGINE_register_all_complete \
],
,
[have_openssl_engine="no"; break]
)
fi
else
have_openssl_engine="${with_openssl_engine}"
if test "${have_openssl_engine}" = "yes"; then
AC_CHECK_FUNCS(
[ \
ENGINE_load_builtin_engines \
ENGINE_register_all_complete \
],
,
[AC_MSG_ERROR([OpenSSL engine support not found])]
)
fi
fi
if test "${have_openssl_engine}" = "yes"; then
AC_DEFINE([HAVE_OPENSSL_ENGINE], [1], [OpenSSL engine support available])
fi
AC_CHECK_FUNC(
[EVP_aes_256_gcm],
,
[AC_MSG_ERROR([OpenSSL check for AES-256-GCM support failed])]
)
# All supported OpenSSL versions (>= 1.1.0)
# have this feature
have_export_keying_material="yes"
CFLAGS="${saved_CFLAGS}"
LIBS="${saved_LIBS}"
AC_DEFINE([ENABLE_CRYPTO_OPENSSL], [1], [Use OpenSSL library])
CRYPTO_CFLAGS="${OPENSSL_CFLAGS}"
CRYPTO_LIBS="${OPENSSL_LIBS}"
elif test "${with_crypto_library}" = "mbedtls"; then
AC_ARG_VAR([MBEDTLS_CFLAGS], [C compiler flags for mbedtls])
AC_ARG_VAR([MBEDTLS_LIBS], [linker flags for mbedtls])
saved_CFLAGS="${CFLAGS}"
saved_LIBS="${LIBS}"
if test -z "${MBEDTLS_CFLAGS}" -a -z "${MBEDTLS_LIBS}"; then
# if the user did not explicitly specify flags, try to autodetect
PKG_CHECK_MODULES([MBEDTLS],
[mbedtls >= 2.0.0 mbedx509 >= 2.0.0 mbedcrypto >= 2.0.0],
[have_mbedtls="yes"],
[LIBS="${LIBS} -lmbedtls -lmbedx509 -lmbedcrypto"]
)
# mbedtls might not have pkgconfig integration, so try manually
if test "${have_mbedtls}" != "yes"; then
AC_CHECK_LIB(
[mbedtls],
[mbedtls_ssl_init],
[MBEDTLS_LIBS="-lmbedtls -lmbedx509 -lmbedcrypto"],
[AC_MSG_ERROR([Could not find mbed TLS.])],
[${PKCS11_HELPER_LIBS}]
)
fi
fi
CFLAGS="${MBEDTLS_CFLAGS} ${PKCS11_HELPER_CFLAGS} ${CFLAGS}"
LIBS="${MBEDTLS_LIBS} ${PKCS11_HELPER_LIBS} ${LIBS}"
AC_MSG_CHECKING([mbedtls version])
AC_COMPILE_IFELSE(