gvpe/configure.ac

dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)
AC_INIT
AC_CONFIG_SRCDIR([src/vped.C])
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE(gvpe, 1.8)
AC_CONFIG_HEADERS([config.h])
AM_MAINTAINER_MODE

AH_TOP([
#ifndef CONFIG_H__
#define CONFIG_H__

#ifdef __cplusplus
   using namespace std;
#endif

])

AH_BOTTOM([
typedef unsigned char u8;
typedef signed char s8;

#if __CYGWIN__

typedef unsigned short u16;
typedef unsigned int u32;
typedef signed short s16;
typedef signed int s32;

#else
#include <inttypes.h>

/* old modula-2 habits */
typedef uint16_t u16;
typedef uint32_t u32;
typedef int16_t s16;
typedef int32_t s32;
#endif

#endif
])

dnl Include the macros from the m4/ directory
AM_ACLOCAL_INCLUDE(m4)

AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION(0.11.5)

# Enable GNU extensions.
# Define this here, not in acconfig's @TOP@ section, since definitions
# in the latter don't make it into the configure-time tests.
AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions])

# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])

ALL_LINGUAS=""

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_GCC_TRADITIONAL
AC_PROG_AWK
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_RANLIB

AC_ARG_ENABLE(iftype,
  [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
     Use kernel/net device interface TYPE/SUBTYPE.
     Working combinations are:
        "native/linux"
        "tincd/linux"
        "tincd/freebsd"
        "tincd/openbsd"
        "tincd/darwin"
        "native/cygwin";
     Untested combinations are:
        "tincd/netbsd"
        "tincd/solaris"
        "tincd/mingw";
     Broken combinations are:
        "tincd/cygwin";
     The default is to autodetect.
  )],
  [
    IFTYPE=`echo $enableval | sed s%/.*%%`
    IFSUBTYPE=`echo $enableval | sed s%.*/%%`
  ]
)

dnl Check and set OS
AC_MSG_CHECKING(for kernel networking interface type)

if test "x$IFTYPE" = "x"; then
   case $target_os in
     *linux*)
       IFTYPE=native
       IFSUBTYPE=linux
       AC_DEFINE(HAVE_LINUX, 1, [Linux])
     ;;
     *freebsd*)
       IFTYPE=tincd
       IFSUBTYPE=freebsd
       AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
     ;;
     *darwin*)
       IFTYPE=tincd
       IFSUBTYPE=darwin
       AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
     ;;
     *solaris*)
       IFTYPE=tincd
       IFSUBTYPE=solaris
       AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
     ;;
     *openbsd*)
       IFTYPE=tincd
       IFSUBTYPE=openbsd
       AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
     ;;
     *netbsd*)
       IFTYPE=tincd
       IFSUBTYPE=netbsd
       AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
     ;;
     *cygwin*)
       IFTYPE=native
       IFSUBTYPE=cygwin
       AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
     ;;
     *)
       AC_MSG_ERROR("Unknown operating system.")
     ;;
   esac
fi
AC_MSG_RESULT($IFTYPE/$IFSUBTYPE)
AC_SUBST(IFTYPE,$IFTYPE)
AC_SUBST(IFSUBTYPE,$IFSUBTYPE)
AC_DEFINE_UNQUOTED(IFTYPE,"$IFTYPE",[kernel interface type])
AC_DEFINE_UNQUOTED(IFSUBTYPE,"$IFSUBTYPE",[kernel interface subtype])

AC_CACHE_SAVE

dnl Checks for libraries.

AC_LANG(C++)
AC_CHECK_HEADERS(ext/hash_map)

dnl Checks for header files.
AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \
        sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \
        sys/mman.h netinet/in.h])
AC_CHECK_HEADERS([arpa/inet.h net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h netinet/in_systm.h], [], [],
[
#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
])

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM

AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
[
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
  #include <sys/socket.h>]], [[socklen_t len = 42; return len;]])],[ac_cv_type_socklen_t=yes],[ac_cv_type_socklen_t=no])
])
if test $ac_cv_type_socklen_t = yes; then
  AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available])
fi

AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo,
[
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
  #include <sys/socket.h>
  #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])
])
if test $ac_cv_struct_addrinfo = yes; then
  AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
fi

dnl Checks for library functions.
AC_TYPE_SIGNAL

AC_LANG_PUSH(C)

AC_HEADER_STDC

dnl argl, could somebody catapult darwin into the 21st century???
AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)

AC_FUNC_ALLOCA

dnl Support for SunOS

AC_CHECK_FUNC(socket, [], [
  AC_CHECK_LIB(socket, connect)
])
AC_CHECK_FUNC(gethostbyname, [], [
  AC_CHECK_LIB(nsl, gethostbyname)
])

AC_LANG_POP

dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])

AC_CACHE_SAVE

dnl These are defined in files in m4/
tinc_TUNTAP

tinc_OPENSSL
if test "x$openssl_include" != x; then
   CXXFLAGS="$CXXFLAGS -I$openssl_include"
fi
dnl tinc_ZLIB

AC_ARG_ENABLE(static-daemon,
  [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
  [LDFLAGS_DAEMON=-static]
)
AC_SUBST(LDFLAGS_DAEMON)

AC_ARG_ENABLE(rohc,
  [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
  [
  echo
  echo "**********************************************************************"
  echo "**********************************************************************"
  echo "**** --enable-rohc is highly experimental, do not use ****************"
  echo "**********************************************************************"
  echo "**********************************************************************"
  echo
  rohc=true
  AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
  ]
)

AM_CONDITIONAL(ROHC, test x$rohc = xtrue)

AC_ARG_ENABLE(icmp,
  [AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)],
  AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
)

AC_ARG_ENABLE(tcp,
  [AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)],
  AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
)

AC_ARG_ENABLE(dns,
  [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)],
  [
    AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
    AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])

    AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
  ]
)

AC_ARG_ENABLE(http-proxy,
  [AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)],
  AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
)

HMAC=12
AC_ARG_ENABLE(hmac-length,
  [AS_HELP_STRING(--enable-hmac-length=BYTES,[
      use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
  HMAC=$enableval
)
AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.])

RAND=8
AC_ARG_ENABLE(rand-length,
  [AS_HELP_STRING(--enable-rand-length=BYTES,
      [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
  RAND=$enableval
)
AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])

MTU=1500
AC_ARG_ENABLE(mtu,
  [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
  MTU=$enableval
)
AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.])

COMPRESS=1
AC_ARG_ENABLE(compression,
  [AS_HELP_STRING(--disable-compression,Disable compression support.)],
  if test "x$enableval" = xno; then
     COMPRESS=0
  fi
)
AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])

CIPHER=bf_cbc
AC_ARG_ENABLE(cipher,
  [AS_HELP_STRING(--enable-cipher,[
      Select the symmetric cipher (default "bf").
      Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])],
  if test "x$enableval" = xbf     ; then CIPHER=bf_cbc     ; fi
  if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi
  if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi
  if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi
)
AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])

DIGEST=sha1
AC_ARG_ENABLE(digest,
  [AS_HELP_STRING(--enable-digest,[
      Select the digets algorithm to use (default "sha1"). Must be one of
      "sha1", "ripemd160", "md5" or "md4" (insecure).])],
  if test "x$enableval" = xsha1     ; then DIGEST=sha1     ; fi
  if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi
  if test "x$enableval" = xmd5      ; then DIGEST=md5      ; fi
  if test "x$enableval" = xmd4      ; then DIGEST=md4      ; fi
)
AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.])

if $CXX -v --help 2>&1 | grep -q fno-rtti; then
   CXXFLAGS="$CXXFLAGS -fno-rtti"
fi

if $CXX -v --help 2>&1 | grep -q fexceptions; then
   CXXFLAGS="$CXXFLAGS -fno-exceptions"
fi

dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
dnl    CXXFLAGS="$CXXFLAGS -ffunction-sections"
dnl fi
dnl 
dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
dnl    LDFLAGS="$LDFLAGS -Wl,--gc-sections"
dnl fi

AC_CONFIG_COMMANDS_POST([

echo
echo "***"
echo "*** Configuration Summary"
echo "***"
echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
echo "*** Cipher used:  $CIPHER"
echo "*** Digest used:  $DIGEST"
echo "*** HMAC length:  $HMAC"
echo "*** RAND used:    $RAND"
echo "*** Max. MTU:     $MTU"
echo "*** Compression:  $COMPRESS"

if test "x$DIGEST" = xmd4; then
echo "***"
echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
fi

if test "$HMAC" -lt 12; then
echo "***"
echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure"
fi

if test "$RAND" -lt 8; then
echo "***"
echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
fi

echo "***"

echo

])

AC_SUBST(INCLUDES)

AC_CONFIG_FILES([Makefile po/Makefile.in
src/Makefile
doc/Makefile
lib/Makefile
m4/Makefile
])
AC_OUTPUT
Revision:	1.35
Committed:	Sat Mar 5 19:25:21 2005 UTC (19 years, 2 months ago) by pcg
Branch:	MAIN
Changes since 1.34:	+1 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	dnl Process this file with autoconf to produce a configure script.
2
3	pcg	1.28	AC_PREREQ(2.59)
4			AC_INIT
5			AC_CONFIG_SRCDIR([src/vped.C])
6	pcg	1.1	AC_CANONICAL_TARGET
7	pcg	1.35	AM_INIT_AUTOMAKE(gvpe, 1.8)
8	pcg	1.28	AC_CONFIG_HEADERS([config.h])
9	pcg	1.1	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	pcg	1.33	typedef unsigned char u8;
23			typedef signed char s8;
24
25	pcg	1.1	#if __CYGWIN__
26
27			typedef unsigned short u16;
28			typedef unsigned int u32;
29	pcg	1.33	typedef signed short s16;
30			typedef signed int s32;
31	pcg	1.1
32			#else
33			#include <inttypes.h>
34
35			/* old modula-2 habits */
36			typedef uint16_t u16;
37			typedef uint32_t u32;
38	pcg	1.33	typedef int16_t s16;
39			typedef int32_t s32;
40	pcg	1.1	#endif
41
42			#endif
43			])
44
45			dnl Include the macros from the m4/ directory
46			AM_ACLOCAL_INCLUDE(m4)
47
48			AM_GNU_GETTEXT([external])
49			AM_GNU_GETTEXT_VERSION(0.11.5)
50
51			# Enable GNU extensions.
52			# Define this here, not in acconfig's @TOP@ section, since definitions
53			# in the latter don't make it into the configure-time tests.
54			AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions])
55	pcg	1.22
56			# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
57			dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
58			dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])
59	pcg	1.1
60			ALL_LINGUAS=""
61
62			dnl Checks for programs.
63			AC_PROG_CC
64			AC_PROG_CPP
65			AC_PROG_CXX
66			AC_PROG_GCC_TRADITIONAL
67			AC_PROG_AWK
68			AC_PROG_INSTALL
69			AC_PROG_LN_S
70			AC_PROG_MAKE_SET
71			AC_PROG_RANLIB
72
73	pcg	1.8	AC_ARG_ENABLE(iftype,
74	pcg	1.28	[AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
75	pcg	1.8	Use kernel/net device interface TYPE/SUBTYPE.
76			Working combinations are:
77	pcg	1.14	"native/linux"
78			"tincd/linux"
79	pcg	1.16	"tincd/freebsd"
80	pcg	1.17	"tincd/openbsd"
81	pcg	1.18	"tincd/darwin"
82	pcg	1.16	"native/cygwin";
83	pcg	1.8	Untested combinations are:
84	pcg	1.14	"tincd/netbsd"
85			"tincd/solaris"
86	pcg	1.17	"tincd/mingw";
87	pcg	1.8	Broken combinations are:
88	pcg	1.14	"tincd/cygwin";
89	pcg	1.9	The default is to autodetect.
90	pcg	1.28	)],
91	pcg	1.8	[
92			IFTYPE=`echo $enableval \| sed s%/.*%%`
93			IFSUBTYPE=`echo $enableval \| sed s%.*/%%`
94			]
95			)
96
97	pcg	1.1	dnl Check and set OS
98	pcg	1.8	AC_MSG_CHECKING(for kernel networking interface type)
99	pcg	1.1
100	pcg	1.8	if test "x$IFTYPE" = "x"; then
101			case $target_os in
102			linux)
103			IFTYPE=native
104			IFSUBTYPE=linux
105			AC_DEFINE(HAVE_LINUX, 1, [Linux])
106			;;
107			freebsd)
108			IFTYPE=tincd
109			IFSUBTYPE=freebsd
110			AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
111			;;
112			darwin)
113			IFTYPE=tincd
114			IFSUBTYPE=darwin
115			AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
116			;;
117			solaris)
118			IFTYPE=tincd
119			IFSUBTYPE=solaris
120			AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
121			;;
122			openbsd)
123			IFTYPE=tincd
124			IFSUBTYPE=openbsd
125			AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
126			;;
127			netbsd)
128			IFTYPE=tincd
129			IFSUBTYPE=netbsd
130			AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
131			;;
132			cygwin)
133	pcg	1.15	IFTYPE=native
134	pcg	1.8	IFSUBTYPE=cygwin
135			AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
136			;;
137			*)
138			AC_MSG_ERROR("Unknown operating system.")
139			;;
140			esac
141			fi
142			AC_MSG_RESULT($IFTYPE/$IFSUBTYPE)
143			AC_SUBST(IFTYPE,$IFTYPE)
144			AC_SUBST(IFSUBTYPE,$IFSUBTYPE)
145	pcg	1.19	AC_DEFINE_UNQUOTED(IFTYPE,"$IFTYPE",[kernel interface type])
146			AC_DEFINE_UNQUOTED(IFSUBTYPE,"$IFSUBTYPE",[kernel interface subtype])
147	pcg	1.1
148			AC_CACHE_SAVE
149
150			dnl Checks for libraries.
151
152			AC_LANG(C++)
153			AC_CHECK_HEADERS(ext/hash_map)
154
155			dnl Checks for header files.
156			AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \
157	pcg	1.22	sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \
158	pcg	1.21	sys/mman.h netinet/in.h])
159	pcg	1.22	AC_CHECK_HEADERS([arpa/inet.h net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h netinet/in_systm.h], [], [],
160	pcg	1.8	[
161			#include <sys/types.h>
162			#include <sys/socket.h>
163			#ifdef HAVE_NETINET_IN_H
164			# include <netinet/in.h>
165			#endif
166			#ifdef HAVE_ARPA_INET_H
167			# include <arpa/inet.h>
168			#endif
169			#ifdef HAVE_NETINET_IN_SYSTM_H
170			# include <netinet/in_systm.h>
171			#endif
172			])
173	pcg	1.1
174			dnl Checks for typedefs, structures, and compiler characteristics.
175			AC_C_CONST
176			AC_TYPE_PID_T
177			AC_TYPE_SIZE_T
178			AC_HEADER_TIME
179			AC_STRUCT_TM
180	pcg	1.10
181	pcg	1.1	AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
182			[
183	pcg	1.28	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
184			#include <sys/socket.h>]], [[socklen_t len = 42; return len;]])],[ac_cv_type_socklen_t=yes],[ac_cv_type_socklen_t=no])
185	pcg	1.1	])
186			if test $ac_cv_type_socklen_t = yes; then
187			AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available])
188			fi
189
190			AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo,
191			[
192	pcg	1.28	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
193	pcg	1.1	#include <sys/socket.h>
194	pcg	1.28	#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])
195	pcg	1.1	])
196			if test $ac_cv_struct_addrinfo = yes; then
197			AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
198			fi
199
200			dnl Checks for library functions.
201			AC_TYPE_SIGNAL
202
203			AC_LANG_PUSH(C)
204
205			AC_HEADER_STDC
206
207	pcg	1.11	dnl argl, could somebody catapult darwin into the 21st century???
208	pcg	1.21	AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)
209	pcg	1.1
210			AC_FUNC_ALLOCA
211
212			dnl Support for SunOS
213
214			AC_CHECK_FUNC(socket, [], [
215			AC_CHECK_LIB(socket, connect)
216			])
217			AC_CHECK_FUNC(gethostbyname, [], [
218			AC_CHECK_LIB(nsl, gethostbyname)
219			])
220
221			AC_LANG_POP
222
223			dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])
224
225			AC_CACHE_SAVE
226
227			dnl These are defined in files in m4/
228			tinc_TUNTAP
229	pcg	1.15
230	pcg	1.1	tinc_OPENSSL
231	pcg	1.15	if test "x$openssl_include" != x; then
232			CXXFLAGS="$CXXFLAGS -I$openssl_include"
233			fi
234	pcg	1.1	dnl tinc_ZLIB
235
236	pcg	1.30	AC_ARG_ENABLE(static-daemon,
237			[AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
238			[LDFLAGS_DAEMON=-static]
239			)
240			AC_SUBST(LDFLAGS_DAEMON)
241
242	pcg	1.5	AC_ARG_ENABLE(rohc,
243	pcg	1.28	[AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
244	pcg	1.5	[
245			echo
246			echo "**********************************************************************"
247			echo "**********************************************************************"
248	pcg	1.25	echo "** --enable-rohc is highly experimental, do not use **************"
249	pcg	1.5	echo "**********************************************************************"
250			echo "**********************************************************************"
251			echo
252	pcg	1.25	rohc=true
253			AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
254	pcg	1.5	]
255			)
256
257	pcg	1.25	AM_CONDITIONAL(ROHC, test x$rohc = xtrue)
258
259	pcg	1.4	AC_ARG_ENABLE(icmp,
260	pcg	1.28	[AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)],
261	pcg	1.4	AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
262			)
263
264	pcg	1.2	AC_ARG_ENABLE(tcp,
265	pcg	1.28	[AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)],
266	pcg	1.2	AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
267			)
268
269	pcg	1.26	AC_ARG_ENABLE(dns,
270	pcg	1.28	[AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)],
271	pcg	1.34	[
272			AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
273			AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
274
275			AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
276			]
277	pcg	1.26	)
278
279	pcg	1.3	AC_ARG_ENABLE(http-proxy,
280	pcg	1.28	[AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)],
281	pcg	1.3	AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
282			)
283
284	pcg	1.30	HMAC=12
285	pcg	1.1	AC_ARG_ENABLE(hmac-length,
286	pcg	1.30	[AS_HELP_STRING(--enable-hmac-length=BYTES,[
287			use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
288	pcg	1.1	HMAC=$enableval
289			)
290			AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.])
291
292	pcg	1.30	RAND=8
293	pcg	1.1	AC_ARG_ENABLE(rand-length,
294	pcg	1.30	[AS_HELP_STRING(--enable-rand-length=BYTES,
295			[use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
296	pcg	1.1	RAND=$enableval
297			)
298			AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])
299
300	pcg	1.30	MTU=1500
301	pcg	1.1	AC_ARG_ENABLE(mtu,
302	pcg	1.28	[AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
303	pcg	1.1	MTU=$enableval
304			)
305			AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.])
306
307			COMPRESS=1
308			AC_ARG_ENABLE(compression,
309	pcg	1.28	[AS_HELP_STRING(--disable-compression,Disable compression support.)],
310	pcg	1.1	if test "x$enableval" = xno; then
311			COMPRESS=0
312			fi
313			)
314			AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
315
316			CIPHER=bf_cbc
317			AC_ARG_ENABLE(cipher,
318	pcg	1.30	[AS_HELP_STRING(--enable-cipher,[
319			Select the symmetric cipher (default "bf").
320			Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])],
321	pcg	1.1	if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi
322			if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi
323			if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi
324			if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi
325			)
326			AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
327
328			DIGEST=sha1
329			AC_ARG_ENABLE(digest,
330	pcg	1.30	[AS_HELP_STRING(--enable-digest,[
331			Select the digets algorithm to use (default "sha1"). Must be one of
332			"sha1", "ripemd160", "md5" or "md4" (insecure).])],
333	pcg	1.1	if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi
334			if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi
335	pcg	1.9	if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi
336	pcg	1.1	if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi
337			)
338			AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.])
339
340			if $CXX -v --help 2>&1 \| grep -q fno-rtti; then
341			CXXFLAGS="$CXXFLAGS -fno-rtti"
342			fi
343
344			if $CXX -v --help 2>&1 \| grep -q fexceptions; then
345			CXXFLAGS="$CXXFLAGS -fno-exceptions"
346			fi
347
348	pcg	1.20	dnl if $CXX -v --help 2>&1 \| grep -q ffunction-sections; then
349			dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
350			dnl fi
351			dnl
352			dnl if $LD -v --help 2>&1 \| grep -q gc-sections; then
353			dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
354			dnl fi
355	pcg	1.1
356			AC_CONFIG_COMMANDS_POST([
357
358			echo
359			echo "***"
360			echo "*** Configuration Summary"
361			echo "***"
362	pcg	1.8	echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
363	pcg	1.1	echo "*** Cipher used: $CIPHER"
364			echo "*** Digest used: $DIGEST"
365			echo "*** HMAC length: $HMAC"
366			echo "*** RAND used: $RAND"
367			echo "*** Max. MTU: $MTU"
368			echo "*** Compression: $COMPRESS"
369	pcg	1.24
370			if test "x$DIGEST" = xmd4; then
371	pcg	1.1	echo "***"
372	pcg	1.24	echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
373			fi
374	pcg	1.8
375	pcg	1.24	if test "$HMAC" -lt 12; then
376			echo "***"
377	pcg	1.26	echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure"
378	pcg	1.24	fi
379
380			if test "$RAND" -lt 8; then
381	pcg	1.8	echo "***"
382	pcg	1.26	echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
383	pcg	1.8	fi
384	pcg	1.24
385			echo "***"
386	pcg	1.8
387	pcg	1.1	echo
388
389			])
390
391			AC_SUBST(INCLUDES)
392
393	pcg	1.28	AC_CONFIG_FILES([Makefile po/Makefile.in
394	pcg	1.1	src/Makefile
395			doc/Makefile
396			lib/Makefile
397			m4/Makefile
398	pcg	1.28	])
399			AC_OUTPUT