1dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.168 2008-12-23 20:49:26 guy Exp $ (LBL)
2dnl
3dnl Copyright (c) 1994, 1995, 1996, 1997
4dnl	The Regents of the University of California.  All rights reserved.
5dnl
6dnl Process this file with autoconf to produce a configure script.
7dnl
8
9#
10# See
11#
12#	http://ftp.gnu.org/gnu/config/README
13#
14# for the URLs to use to fetch new versions of config.guess and
15# config.sub.
16#
17
18AC_REVISION($Revision: 1.168 $)
19AC_PREREQ(2.50)
20AC_INIT(pcap.c)
21
22AC_CANONICAL_SYSTEM
23
24AC_LBL_C_INIT_BEFORE_CC(V_CCOPT, V_INCLS)
25AC_PROG_CC
26AC_LBL_C_INIT(V_CCOPT, V_INCLS)
27AC_LBL_SHLIBS_INIT
28AC_LBL_C_INLINE
29AC_C___ATTRIBUTE__
30
31AC_CHECK_HEADERS(sys/bitypes.h)
32
33AC_CHECK_TYPE([int8_t], ,
34	[AC_DEFINE([int8_t], [signed char],
35	[Define to `signed char' if int8_t not defined.])],
36	[AC_INCLUDES_DEFAULT
37#ifdef HAVE_SYS_BITYPES_H
38#include <sys/bitypes.h>
39#endif])
40AC_CHECK_TYPE([u_int8_t], ,
41	[AC_DEFINE([u_int8_t], [unsigned char],
42	[Define to `unsigned char' if u_int8_t not defined.])],
43	[AC_INCLUDES_DEFAULT
44#ifdef HAVE_SYS_BITYPES_H
45#include <sys/bitypes.h>
46#endif])
47AC_CHECK_TYPE([int16_t], ,
48	[AC_DEFINE([int16_t], [short],
49	[Define to `short' if int16_t not defined.])]
50	[AC_INCLUDES_DEFAULT
51#ifdef HAVE_SYS_BITYPES_H
52#include <sys/bitypes.h>
53#endif])
54AC_CHECK_TYPE([u_int16_t], ,
55	[AC_DEFINE([u_int16_t], [unsigned short],
56	[Define to `unsigned short' if u_int16_t not defined.])],
57	[AC_INCLUDES_DEFAULT
58#ifdef HAVE_SYS_BITYPES_H
59#include <sys/bitypes.h>
60#endif])
61AC_CHECK_TYPE([int32_t], ,
62	[AC_DEFINE([int32_t], [int],
63	[Define to `int' if int32_t not defined.])],
64	[AC_INCLUDES_DEFAULT
65#ifdef HAVE_SYS_BITYPES_H
66#include <sys/bitypes.h>
67#endif])
68AC_CHECK_TYPE([u_int32_t], ,
69	[AC_DEFINE([u_int32_t], [unsigned int],
70	[Define to `unsigned int' if u_int32_t not defined.])],
71	[AC_INCLUDES_DEFAULT
72#ifdef HAVE_SYS_BITYPES_H
73#include <sys/bitypes.h>
74#endif])
75AC_CHECK_TYPE([int64_t], ,
76	[AC_DEFINE([int64_t], [long long],
77	[Define to `long long' if int64_t not defined.])],
78	[AC_INCLUDES_DEFAULT
79#ifdef HAVE_SYS_BITYPES_H
80#include <sys/bitypes.h>
81#endif])
82AC_CHECK_TYPE([u_int64_t], ,
83	[AC_DEFINE([u_int64_t], [unsigned long long],
84	[Define to `unsigned long long' if u_int64_t not defined.])],
85	[AC_INCLUDES_DEFAULT
86#ifdef HAVE_SYS_BITYPES_H
87#include <sys/bitypes.h>
88#endif])
89
90#
91# Try to arrange for large file support.
92#
93AC_SYS_LARGEFILE
94AC_FUNC_FSEEKO
95
96dnl
97dnl Even if <net/bpf.h> were, on all OSes that support BPF, fixed to
98dnl include <sys/ioccom.h>, and we were to drop support for older
99dnl releases without that fix, so that pcap-bpf.c doesn't need to
100dnl include <sys/ioccom.h>, the test program in "AC_LBL_FIXINCLUDES"
101dnl in "aclocal.m4" uses it, so we would still have to test for it
102dnl and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise
103dnl "AC_LBL_FIXINCLUDES" wouldn't work on some platforms such as Solaris.
104dnl
105AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h limits.h paths.h)
106AC_CHECK_HEADERS(linux/types.h)
107AC_CHECK_HEADERS(linux/if_packet.h netpacket/packet.h netpacket/if_packet.h)
108AC_CHECK_HEADERS(net/pfvar.h, , , [#include <sys/types.h>
109#include <sys/socket.h>
110#include <net/if.h>])
111if test "$ac_cv_header_net_pfvar_h" = yes; then
112	#
113	# Check for various PF actions.
114	#
115	AC_MSG_CHECKING(whether net/pfvar.h defines PF_NAT through PF_NORDR)
116	AC_TRY_COMPILE(
117	    [#include <sys/types.h>
118	    #include <sys/socket.h>
119	    #include <net/if.h>
120	    #include <net/pfvar.h>],
121	    [return PF_NAT+PF_NONAT+PF_BINAT+PF_NOBINAT+PF_RDR+PF_NORDR;],
122	    [
123		AC_MSG_RESULT(yes)
124		AC_DEFINE(HAVE_PF_NAT_THROUGH_PF_NORDR, 1,
125		    [define if net/pfvar.h defines PF_NAT through PF_NORDR])
126	    ],
127	    AC_MSG_RESULT(no))
128fi
129AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
130#include <sys/socket.h>])
131if test "$ac_cv_header_netinet_if_ether_h" != yes; then
132	#
133	# The simple test didn't work.
134	# Do we need to include <net/if.h> first?
135	# Unset ac_cv_header_netinet_if_ether_h so we don't
136	# treat the previous failure as a cached value and
137	# suppress the next test.
138	#
139	AC_MSG_NOTICE([Rechecking with some additional includes])
140	unset ac_cv_header_netinet_if_ether_h
141	AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
142#include <sys/socket.h>
143#include <netinet/in.h>
144struct mbuf;
145struct rtentry;
146#include <net/if.h>])
147fi
148
149AC_LBL_FIXINCLUDES
150
151AC_CHECK_FUNCS(strerror strlcpy)
152
153needsnprintf=no
154AC_CHECK_FUNCS(vsnprintf snprintf,,
155	[needsnprintf=yes])
156if test $needsnprintf = yes; then
157	AC_LIBOBJ([snprintf])
158fi
159
160#
161# Do this before checking for ether_hostton(), as it's a
162# "gethostbyname() -ish function".
163#
164AC_LBL_LIBRARY_NET
165
166#
167# You are in a twisty little maze of UN*Xes, all different.
168# Some might not have ether_hostton().
169# Some might have it, but not declare it in any header file.
170# Some might have it, but declare it in <netinet/if_ether.h>.
171# Some might have it, but declare it in <netinet/ether.h>
172# (And some might have it but document it as something declared in
173# <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.)
174#
175# Before you is a C compiler.
176#
177AC_CHECK_FUNCS(ether_hostton)
178if test "$ac_cv_func_ether_hostton" = yes; then
179	#
180	# OK, we have ether_hostton().  Do we have <netinet/if_ether.h>?
181	#
182	if test "$ac_cv_header_netinet_if_ether_h" = yes; then
183		#
184		# Yes.  Does it declare ether_hostton()?
185		#
186		AC_CHECK_DECL(ether_hostton,
187		    [
188			AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_HOSTTON,,
189			    [Define to 1 if netinet/if_ether.h declares `ether_hostton'])
190		    ],,
191		    [
192#include <sys/types.h>
193#include <sys/socket.h>
194#include <netinet/in.h>
195#include <arpa/inet.h>
196struct mbuf;
197struct rtentry;
198#include <net/if.h>
199#include <netinet/if_ether.h>
200		    ])
201	fi
202	#
203	# Did that succeed?
204	#
205	if test "$ac_cv_have_decl_ether_hostton" != yes; then
206		#
207		# No, how about <netinet/ether.h>, as on Linux?
208		#
209		AC_CHECK_HEADERS(netinet/ether.h)
210		if test "$ac_cv_header_netinet_ether_h" = yes; then
211			#
212			# We have it - does it declare ether_hostton()?
213			# Unset ac_cv_have_decl_ether_hostton so we don't
214			# treat the previous failure as a cached value and
215			# suppress the next test.
216			#
217			unset ac_cv_have_decl_ether_hostton
218			AC_CHECK_DECL(ether_hostton,
219			    [
220				AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_HOSTTON,,
221				    [Define to 1 if netinet/ether.h declares `ether_hostton'])
222			    ],,
223			    [
224#include <netinet/ether.h>
225			    ])
226		fi
227	fi
228	#
229	# Is ether_hostton() declared?
230	#
231	if test "$ac_cv_have_decl_ether_hostton" != yes; then
232		#
233		# No, we'll have to declare it ourselves.
234		# Do we have "struct ether_addr"?
235		#
236		AC_CHECK_TYPES(struct ether_addr,,,
237		    [
238#include <sys/types.h>
239#include <sys/socket.h>
240#include <netinet/in.h>
241#include <arpa/inet.h>
242struct mbuf;
243struct rtentry;
244#include <net/if.h>
245#include <netinet/if_ether.h>
246		    ])
247		AC_DEFINE(HAVE_DECL_ETHER_HOSTTON, 0,
248		    [Define to 1 if you have the declaration of `ether_hostton', and to 0 if you
249don't.])
250	else
251		AC_DEFINE(HAVE_DECL_ETHER_HOSTTON, 1,
252		    [Define to 1 if you have the declaration of `ether_hostton', and to 0 if you
253don't.])
254	fi
255fi
256
257dnl to pacify those who hate protochain insn
258AC_MSG_CHECKING(if --disable-protochain option is specified)
259AC_ARG_ENABLE(protochain,
260AC_HELP_STRING([--disable-protochain],[disable \"protochain\" insn]))
261case "x$enable_protochain" in
262xyes)	enable_protochain=enabled	;;
263xno)	enable_protochain=disabled	;;
264x)	enable_protochain=enabled	;;
265esac
266
267if test "$enable_protochain" = "disabled"; then
268	AC_DEFINE(NO_PROTOCHAIN,1,[do not use protochain])
269fi
270AC_MSG_RESULT(${enable_protochain})
271
272#
273# SITA support is mutually exclusive with native capture support;
274# "--with-sita" selects SITA support.
275#
276AC_ARG_WITH(sita,
277AC_HELP_STRING([--with-sita],[include SITA support]),
278[
279	if test ! "x$withval" = "xno" ; then
280		AC_DEFINE(SITA,1,[include ACN support])
281		AC_MSG_NOTICE(Enabling SITA ACN support)
282		V_PCAP=sita
283		V_FINDALLDEVS=sita
284	fi
285],
286[
287dnl
288dnl Not all versions of test support -c (character special) but it's a
289dnl better way of testing since the device might be protected. So we
290dnl check in our normal order using -r and then check the for the /dev
291dnl guys again using -c.
292dnl
293dnl XXX This could be done for cross-compiling, but for now it's not.
294dnl
295if test -z "$with_pcap" && test "$cross_compiling" = yes; then
296	AC_MSG_ERROR(pcap type not determined when cross-compiling; use --with-pcap=...)
297fi
298AC_ARG_WITH(pcap,
299AC_HELP_STRING([--with-pcap=TYPE],[use packet capture TYPE]))
300AC_MSG_CHECKING(packet capture type)
301if test ! -z "$with_pcap" ; then
302	V_PCAP="$withval"
303elif test -r /dev/bpf -o -h /dev/bpf ; then
304	#
305	# Cloning BPF device.
306	#
307	V_PCAP=bpf
308	AC_DEFINE(HAVE_CLONING_BPF,1,[define if you have a cloning BPF device])
309elif test -r /dev/bpf0 ; then
310	V_PCAP=bpf
311elif test -r /usr/include/net/pfilt.h ; then
312	V_PCAP=pf
313elif test -r /dev/enet ; then
314	V_PCAP=enet
315elif test -r /dev/nit ; then
316	V_PCAP=snit
317elif test -r /usr/include/sys/net/nit.h ; then
318	V_PCAP=nit
319elif test -r /usr/include/linux/socket.h ; then
320	V_PCAP=linux
321elif test -r /usr/include/net/raw.h ; then
322	V_PCAP=snoop
323elif test -r /usr/include/odmi.h ; then
324	#
325	# On AIX, the BPF devices might not yet be present - they're
326	# created the first time libpcap runs after booting.
327	# We check for odmi.h instead.
328	#
329	V_PCAP=bpf
330elif test -c /dev/bpf0 ; then		# check again in case not readable
331	V_PCAP=bpf
332elif test -r /usr/include/sys/dlpi.h ; then
333	V_PCAP=dlpi
334elif test -c /dev/enet ; then		# check again in case not readable
335	V_PCAP=enet
336elif test -c /dev/nit ; then		# check again in case not readable
337	V_PCAP=snit
338else
339	V_PCAP=null
340fi
341AC_MSG_RESULT($V_PCAP)
342
343#
344# Do capture-mechanism-dependent tests.
345#
346case "$V_PCAP" in
347dlpi)
348	#
349	# Checks to see if Solaris has the public libdlpi(3LIB) library.
350	# Note: The existence of /usr/include/libdlpi.h does not mean it is the
351	# public libdlpi(3LIB) version. Before libdlpi was made public, a 
352	# private version also existed, which did not have the same APIs. 
353	# Due to a gcc bug, the default search path for 32-bit libraries does
354	# not include /lib, we add it explicitly here.
355	# [http://bugs.opensolaris.org/view_bug.do?bug_id=6619485]. 
356	# Also, due to the bug above applications that link to libpcap with
357	# libdlpi will have to add "-L/lib" option to "configure".
358	#
359	saved_ldflags=$LDFLAGS
360	LDFLAGS="$LIBS -L/lib"
361	AC_CHECK_LIB(dlpi, dlpi_walk,
362		LIBS="-ldlpi $LIBS"
363		V_PCAP=libdlpi
364		AC_DEFINE(HAVE_LIBDLPI,1,[if libdlpi exists]),
365		V_PCAP=dlpi)
366	LDFLAGS=$saved_ldflags
367
368	#
369	# Checks whether <sys/dlpi.h> is usable, to catch weird SCO
370	# versions of DLPI.
371	#
372	AC_MSG_CHECKING(whether <sys/dlpi.h> is usable)
373	AC_CACHE_VAL(ac_cv_sys_dlpi_usable,
374		AC_TRY_COMPILE(
375		    [
376			#include <sys/types.h>
377			#include <sys/time.h>
378			#include <sys/dlpi.h>
379		    ],
380		    [int i = DL_PROMISC_PHYS;],
381		    ac_cv_sys_dlpi_usable=yes,
382		    ac_cv_sys_dlpi_usable=no))
383	AC_MSG_RESULT($ac_cv_sys_dlpi_usable)
384	if test $ac_cv_sys_dlpi_usable = no ; then
385		AC_MSG_ERROR(<sys/dlpi.h> is not usable on this system; it probably has a non-standard DLPI)
386	fi
387
388	#
389	# Check whether we have a /dev/dlpi device or have multiple devices.
390	#
391	AC_MSG_CHECKING(for /dev/dlpi device)
392	if test -c /dev/dlpi ; then
393		AC_MSG_RESULT(yes)
394		AC_DEFINE(HAVE_DEV_DLPI, 1, [define if you have a /dev/dlpi])
395	else
396		AC_MSG_RESULT(no)
397		dir="/dev/dlpi"
398		AC_MSG_CHECKING(for $dir directory)
399		if test -d $dir ; then
400			AC_MSG_RESULT(yes)
401			AC_DEFINE_UNQUOTED(PCAP_DEV_PREFIX, "$dir", [/dev/dlpi directory])
402		else
403			AC_MSG_RESULT(no)
404		fi
405	fi
406
407	#
408	# This check is for Solaris with DLPI support for passive modes.
409	# See dlpi(7P) for more details.
410	#
411	AC_LBL_DL_PASSIVE_REQ_T
412	;;
413
414linux)
415	#
416	# Do we have the wireless extensions?
417	#
418	AC_CHECK_HEADERS(linux/wireless.h, [], [],
419	[
420#include <sys/socket.h>
421#include <linux/if.h>
422#include <linux/types.h>
423	])
424
425	#
426	# Do we have libnl?
427	#
428	AC_ARG_WITH(libnl,
429	AC_HELP_STRING([--without-libnl],[disable libnl support @<:@default=yes, on Linux, if present@:>@]),
430		with_libnl=$withval,,)
431
432	if test x$with_libnl != xno ; then
433		have_any_nl="no"
434
435		#
436		# Try libnl 3.x first.
437		#
438		AC_CHECK_LIB(nl-3, nl_socket_alloc,
439		[
440			#
441			# Yes, we have libnl 3.x.
442			#
443			LIBS="-lnl-genl-3 -lnl-3 $LIBS"
444			AC_DEFINE(HAVE_LIBNL,1,[if libnl exists])
445			AC_DEFINE(HAVE_LIBNL_3_x,1,[if libnl exists and is version 3.x])
446			AC_DEFINE(HAVE_LIBNL_NLE,1,[libnl has NLE_FAILURE])
447			AC_DEFINE(HAVE_LIBNL_SOCKETS,1,[libnl has new-style socket api])
448			V_INCLS="$V_INCLS -I/usr/include/libnl3"
449			have_any_nl="yes"
450		])
451
452		if test x$have_any_nl = xno ; then
453			#
454			# Try libnl 2.x
455			#
456			AC_CHECK_LIB(nl, nl_socket_alloc,
457			[
458				#
459				# Yes, we have libnl 2.x.
460				#
461				LIBS="-lnl-genl -lnl $LIBS"
462				AC_DEFINE(HAVE_LIBNL,1,[if libnl exists])
463				AC_DEFINE(HAVE_LIBNL_2_x,1,[if libnl exists and is version 2.x])
464				AC_DEFINE(HAVE_LIBNL_NLE,1,[libnl has NLE_FAILURE])
465				AC_DEFINE(HAVE_LIBNL_SOCKETS,1,[libnl has new-style socket api])
466				have_any_nl="yes"
467			])
468		fi
469
470		if test x$have_any_nl = xno ; then
471			#
472			# No, we don't; do we have libnl 1.x?
473			#
474			AC_CHECK_LIB(nl, nl_handle_alloc,
475			[
476				#
477				# Yes.
478				#
479				LIBS="-lnl $LIBS"
480				AC_DEFINE(HAVE_LIBNL,1,[if libnl exists])
481				have_any_nl="yes"
482			])
483		fi
484
485		if test x$have_any_nl = xno ; then
486			#
487			# No, we don't have libnl at all.
488			#
489			if test x$with_libnl = xyes ; then
490				AC_MSG_ERROR([libnl support requested but libnl not found])
491			fi
492		fi
493	fi
494
495	AC_CHECK_HEADERS(linux/ethtool.h,,,
496	    [
497AC_INCLUDES_DEFAULT
498#include <linux/types.h>
499	    ])
500	AC_LBL_TPACKET_STATS
501	AC_LBL_LINUX_TPACKET_AUXDATA_TP_VLAN_TCI
502	;;
503
504bpf)
505	#
506	# Check whether we have the *BSD-style ioctls.
507	#
508	AC_CHECK_HEADERS(net/if_media.h)
509
510	AC_MSG_CHECKING(whether the system supports zerocopy BPF)
511	AC_TRY_COMPILE(
512	    [#include <sys/socket.h>
513	    #include <sys/ioctl.h>
514	    #include <net/if.h>
515	    #include <net/bpf.h>],
516	    [return (BIOCROTZBUF + BPF_BUFMODE_ZBUF);],
517	    [  
518		AC_MSG_RESULT(yes)
519		AC_DEFINE(HAVE_ZEROCOPY_BPF, 1,
520		[define if the system supports zerocopy BPF])
521	    ],
522	    AC_MSG_RESULT(no))
523
524	    #
525	    # Check whether we have struct BPF_TIMEVAL.
526	    #
527	    AC_CHECK_TYPES(struct BPF_TIMEVAL,,,
528		[
529#include <sys/types.h>
530#include <sys/ioctl.h>
531#ifdef HAVE_SYS_IOCCOM_H
532#include <sys/ioccom.h>
533#endif
534#include <net/bpf.h>
535		    ])
536	;;
537
538dag)
539	V_DEFS="$V_DEFS -DDAG_ONLY"
540	;;
541
542septel)
543	V_DEFS="$V_DEFS -DSEPTEL_ONLY"
544	;;
545
546snf)
547	V_DEFS="$V_DEFS -DSNF_ONLY"
548	;;
549
550null)
551	AC_MSG_WARN(cannot determine packet capture interface)
552	AC_MSG_WARN((see the INSTALL doc for more info))
553	;;
554esac
555
556dnl
557dnl Now figure out how we get a list of interfaces and addresses,
558dnl if we support capturing.  Don't bother if we don't support
559dnl capturing.
560dnl
561if test "$V_PCAP" = null
562then
563	#
564	# We can't capture, so we can't open any capture
565	# devices, so we won't return any interfaces.
566	#
567	V_FINDALLDEVS=null
568else
569	AC_CHECK_FUNC(getifaddrs,[
570		#
571		# We have "getifaddrs()"; make sure we have <ifaddrs.h>
572		# as well, just in case some platform is really weird.
573		#
574		AC_CHECK_HEADER(ifaddrs.h,[
575		    #
576		    # We have the header, so we use "getifaddrs()" to
577		    # get the list of interfaces.
578		    #
579		    V_FINDALLDEVS=getad
580		],[
581		    #
582		    # We don't have the header - give up.
583		    # XXX - we could also fall back on some other
584		    # mechanism, but, for now, this'll catch this
585		    # problem so that we can at least try to figure
586		    # out something to do on systems with "getifaddrs()"
587		    # but without "ifaddrs.h", if there is something
588		    # we can do on those systems.
589		    #
590		    AC_MSG_ERROR([Your system has getifaddrs() but doesn't have a usable <ifaddrs.h>.])
591		])
592	],[
593		#
594		# Well, we don't have "getifaddrs()", so we have to use
595		# some other mechanism; determine what that mechanism is.
596		#
597		# The first thing we use is the type of capture mechanism,
598		# which is somewhat of a proxy for the OS we're using.
599		#
600		case "$V_PCAP" in
601
602		dlpi|libdlpi)
603			AC_CHECK_HEADERS(sys/bufmod.h sys/dlpi_ext.h)
604			#
605			# This might be Solaris 8 or later, with
606			# SIOCGLIFCONF, or it might be some other OS
607			# or some older version of Solaris, with
608			# just SIOCGIFCONF.
609			#
610			AC_MSG_CHECKING(whether we have SIOCGLIFCONF)
611			AC_CACHE_VAL(ac_cv_lbl_have_siocglifconf,
612			    AC_TRY_COMPILE(
613				[#include <sys/param.h>
614				#include <sys/file.h>
615				#include <sys/ioctl.h>
616				#include <sys/socket.h>
617				#include <sys/sockio.h>],
618				[ioctl(0, SIOCGLIFCONF, (char *)0);],
619				ac_cv_lbl_have_siocglifconf=yes,
620				ac_cv_lbl_have_siocglifconf=no))
621			AC_MSG_RESULT($ac_cv_lbl_have_siocglifconf)
622			if test $ac_cv_lbl_have_siocglifconf = yes ; then
623				V_FINDALLDEVS=glifc
624			else
625				V_FINDALLDEVS=gifc
626			fi
627			#
628			# Needed for common functions used by pcap-[dlpi,libdlpi].c
629			#
630		 	SSRC="dlpisubs.c"
631			;;
632
633		*)
634			#
635			# Assume we just have SIOCGIFCONF.
636			# (XXX - on at least later Linux kernels, there's
637			# another mechanism, and we should be using that
638			# instead.)
639			#
640			V_FINDALLDEVS=gifc
641			;;
642		esac])
643fi
644])
645
646AC_MSG_CHECKING(for socklen_t)
647AC_TRY_COMPILE([
648	#include <sys/types.h>
649	#include <sys/socket.h>
650	],
651	[ socklen_t x; ],
652	have_socklen_t=yes,
653	have_socklen_t=no)
654if test "x$have_socklen_t" = "xyes"; then
655	AC_DEFINE(HAVE_SOCKLEN_T, 1, [define if socklen_t is defined])
656fi
657AC_MSG_RESULT($have_socklen_t)
658
659AC_ARG_ENABLE(ipv6,
660AC_HELP_STRING([--enable-ipv6],[build IPv6-capable version @<:@default=yes, if getaddrinfo available@:>@]),
661    [],
662    [enable_ipv6=ifavailable])
663if test "$enable_ipv6" != "no"; then
664	AC_CHECK_FUNC(getaddrinfo,
665	    [
666		AC_DEFINE(INET6,1,[IPv6])
667	    ],
668	    [
669		if test "$enable_ipv6" != "ifavailable"; then
670			AC_MSG_FAILURE([--enable-ipv6 was given, but getaddrinfo isn't available])
671		fi
672	    ])
673fi
674
675AC_MSG_CHECKING(whether to build optimizer debugging code)
676AC_ARG_ENABLE(optimizer-dbg,
677AC_HELP_STRING([--enable-optimizer-dbg],[build optimizer debugging code]))
678if test "$enable_optimizer_dbg" = "yes"; then
679	AC_DEFINE(BDEBUG,1,[Enable optimizer debugging])
680fi
681AC_MSG_RESULT(${enable_optimizer_dbg-no})
682
683AC_MSG_CHECKING(whether to build parser debugging code)
684AC_ARG_ENABLE(yydebug,
685AC_HELP_STRING([--enable-yydebug],[build parser debugging code]))
686if test "$enable_yydebug" = "yes"; then
687	AC_DEFINE(YYDEBUG,1,[Enable parser debugging])
688fi
689AC_MSG_RESULT(${enable_yydebug-no})
690
691# Check for Endace DAG card support.
692AC_ARG_WITH([dag],
693AC_HELP_STRING([--with-dag@<:@=DIR@:>@],[include Endace DAG support @<:@"yes", "no" or DIR; default="yes" on BSD and Linux if present@:>@]),
694[
695	if test "$withval" = no
696	then
697		# User doesn't want DAG support.
698		want_dag=no
699	elif test "$withval" = yes
700	then
701		# User wants DAG support but hasn't specified a directory.
702		want_dag=yes
703	else
704		# User wants DAG support and has specified a directory, so use the provided value.
705		want_dag=yes
706		dag_root=$withval
707	fi
708],[
709	#
710	# Use DAG API if present, otherwise don't
711	#
712	want_dag=ifpresent
713])
714
715AC_ARG_WITH([dag-includes],
716AC_HELP_STRING([--with-dag-includes=DIR],[Endace DAG include directory]),
717[
718	# User wants DAG support and has specified a header directory, so use the provided value.
719	want_dag=yes
720	dag_include_dir=$withval
721],[])
722
723AC_ARG_WITH([dag-libraries],
724AC_HELP_STRING([--with-dag-libraries=DIR],[Endace DAG library directory]),
725[
726	# User wants DAG support and has specified a library directory, so use the provided value.
727	want_dag=yes
728	dag_lib_dir=$withval
729],[])
730
731case "$V_PCAP" in
732linux|bpf|dag)
733	#
734	# We support the DAG API if we're on Linux or BSD, or if we're
735	# building a DAG-only libpcap.
736	#
737	;;
738*)
739	#
740	# If the user explicitly requested DAG, tell them it's not
741	# supported.
742	#
743	# If they expressed no preference, don't include it.
744	#
745	if test $want_dag = yes; then
746		AC_MSG_ERROR([DAG support is only available with 'linux' 'bpf' and 'dag' packet capture types])
747	elif test $want_dag = yes; then
748		want_dag=no
749	fi
750	;;
751esac
752
753ac_cv_lbl_dag_api=no
754if test "$want_dag" != no; then
755
756	AC_MSG_CHECKING([whether we have DAG API headers])
757
758	# If necessary, set default paths for DAG API headers and libraries.
759	if test -z "$dag_root"; then
760	    dag_root=/usr/local
761	fi
762
763	if test -z "$dag_include_dir"; then
764		dag_include_dir="$dag_root/include"
765	fi
766
767	if test -z "$dag_lib_dir"; then
768	    dag_lib_dir="$dag_root/lib"
769	fi
770	
771	if test -z "$dag_tools_dir"; then
772	    dag_tools_dir="$dag_root/tools"
773	fi
774
775	if test -r $dag_include_dir/dagapi.h; then
776		ac_cv_lbl_dag_api=yes
777	fi
778	AC_MSG_RESULT([$ac_cv_lbl_dag_api ($dag_include_dir)])
779fi
780
781if test $ac_cv_lbl_dag_api = yes; then
782	V_INCLS="$V_INCLS -I$dag_include_dir"
783
784	if test $V_PCAP != dag ; then
785		 SSRC="pcap-dag.c"
786	fi
787
788	# See if we can find a general version string.
789	# Don't need to save and restore LIBS to prevent -ldag being
790	# included if there's a found-action (arg 3).
791	saved_ldflags=$LDFLAGS
792	LDFLAGS="-L$dag_lib_dir"
793	AC_CHECK_LIB([dag], [dag_attach_stream], [dag_streams="1"], [dag_streams="0"])
794	AC_CHECK_LIB([dag],[dag_get_erf_types], [
795		AC_DEFINE(HAVE_DAG_GET_ERF_TYPES, 1, [define if you have dag_get_erf_types()])])
796	AC_CHECK_LIB([dag],[dag_get_stream_erf_types], [
797		AC_DEFINE(HAVE_DAG_GET_STREAM_ERF_TYPES, 1, [define if you have dag_get_stream_erf_types()])])
798
799	LDFLAGS=$saved_ldflags
800
801	if test "$dag_streams" = 1; then
802		AC_DEFINE(HAVE_DAG_STREAMS_API, 1, [define if you have streams capable DAG API])
803		LIBS="$LIBS -ldag"
804		LDFLAGS="$LDFLAGS -L$dag_lib_dir"
805		
806		AC_CHECK_LIB([vdag],[vdag_set_device_info], [ac_dag_have_vdag="1"], [ac_dag_have_vdag="0"])
807		if test "$ac_dag_have_vdag" = 1; then
808			AC_DEFINE(HAVE_DAG_VDAG, 1, [define if you have vdag_set_device_info()])
809			LIBS="$LIBS -lpthread"
810		fi
811	fi
812
813	AC_DEFINE(HAVE_DAG_API, 1, [define if you have the DAG API])
814fi
815
816AC_MSG_CHECKING(whether we have the DAG API)
817
818if test $ac_cv_lbl_dag_api = no; then
819	AC_MSG_RESULT(no)
820	if test "$want_dag" = yes; then
821        	# User wanted DAG support but we couldn't find it.
822		AC_MSG_ERROR([DAG API requested, but not found at $dag_root: use --without-dag])
823	fi
824
825	if test "$V_PCAP" = dag; then
826		# User requested "dag" capture type but the DAG API wasn't
827		# found.
828		AC_MSG_ERROR([Specifying the capture type as "dag" requires the DAG API to be present; use the --with-dag options to specify the location. (Try "./configure --help" for more information.)])
829	fi
830else
831	AC_MSG_RESULT(yes)
832fi
833
834AC_ARG_WITH(septel,
835AC_HELP_STRING([--with-septel@<:@=DIR@:>@],[include Septel support (located in directory DIR, if supplied).  @<:@default=yes, on Linux, if present@:>@]),
836[
837	if test "$withval" = no
838	then
839		want_septel=no
840	elif test "$withval" = yes
841	then
842		want_septel=yes
843		septel_root=
844	else
845		want_septel=yes
846		septel_root=$withval
847	fi
848],[
849	#
850	# Use Septel API if present, otherwise don't
851	#
852	want_septel=ifpresent
853	septel_root=./../septel
854])
855ac_cv_lbl_septel_api=no
856case "$V_PCAP" in
857linux|septel)
858	#
859	# We support the Septel API if we're on Linux, or if we're building
860	# a Septel-only libpcap.
861	#
862	;;
863*)
864	#
865	# If the user explicitly requested Septel, tell them it's not
866	# supported.
867	#
868	# If they expressed no preference, don't include it.
869	#
870	if test $want_septel = yes; then
871		AC_MSG_ERROR(Septel support only available with 'linux' and 'septel' packet capture types)
872	elif test $want_septel = yes; then
873		want_septel=no
874	fi
875	;;
876esac
877
878if test "$with_septel" != no; then
879	AC_MSG_CHECKING(whether we have Septel API)
880
881	if test -z "$septel_root"; then
882		septel_root=$srcdir/../septel
883	fi
884
885	septel_tools_dir="$septel_root"
886	septel_include_dir="$septel_root/INC"
887
888	ac_cv_lbl_septel_api=no
889	if test -r "$septel_include_dir/msg.h"; then
890		V_INCLS="$V_INCLS -I$septel_include_dir"
891		ADDLOBJS="$ADDLOBJS $septel_tools_dir/asciibin.o $septel_tools_dir/bit2byte.o $septel_tools_dir/confirm.o $septel_tools_dir/fmtmsg.o $septel_tools_dir/gct_unix.o $septel_tools_dir/hqueue.o $septel_tools_dir/ident.o $septel_tools_dir/mem.o $septel_tools_dir/pack.o $septel_tools_dir/parse.o $septel_tools_dir/pool.o $septel_tools_dir/sdlsig.o $septel_tools_dir/strtonum.o $septel_tools_dir/timer.o $septel_tools_dir/trace.o"
892		ADDLARCHIVEOBJS="$ADDLARCHIVEOBJS $septel_tools_dir/asciibin.o $septel_tools_dir/bit2byte.o $septel_tools_dir/confirm.o $septel_tools_dir/fmtmsg.o $septel_tools_dir/gct_unix.o $septel_tools_dir/hqueue.o $septel_tools_dir/ident.o $septel_tools_dir/mem.o $septel_tools_dir/pack.o $septel_tools_dir/parse.o $septel_tools_dir/pool.o $septel_tools_dir/sdlsig.o $septel_tools_dir/strtonum.o $septel_tools_dir/timer.o $septel_tools_dir/trace.o"
893
894		if test "$V_PCAP" != septel ; then
895			 SSRC="pcap-septel.c"
896		fi
897		ac_cv_lbl_septel_api=yes
898	fi
899
900	AC_MSG_RESULT($ac_cv_lbl_septel_api)
901	if test $ac_cv_lbl_septel_api = no; then
902		if test "$want_septel" = yes; then
903			AC_MSG_ERROR(Septel API not found under directory $septel_root; use --without-septel)
904		fi
905	else
906		AC_DEFINE(HAVE_SEPTEL_API, 1, [define if you have a Septel API])
907	fi
908fi
909
910if test "$V_PCAP" = septel -a "$ac_cv_lbl_septel_api" = no; then
911	AC_MSG_ERROR(Specifying the capture type as 'septel' requires the Septel API to be present; use --with-septel=DIR)
912fi
913
914# Check for Myricom SNF support.
915AC_ARG_WITH([snf],
916AC_HELP_STRING([--with-snf@<:@=DIR@:>@],[include Myricom SNF support @<:@"yes", "no" or DIR; default="yes" on BSD and Linux if present@:>@]),
917[
918	if test "$withval" = no
919	then
920		# User explicitly doesn't want SNF
921		want_snf=no
922	elif test "$withval" = yes
923	then
924		# User wants SNF support but hasn't specific a directory.
925		want_snf=yes
926	else
927		# User wants SNF support with a specified directory.
928		want_snf=yes
929		snf_root=$withval
930	fi
931],[
932	#
933	# Use Sniffer API if present, otherwise don't
934	#
935	want_snf=ifpresent
936])
937
938AC_ARG_WITH([snf-includes],
939AC_HELP_STRING([--with-snf-includes=DIR],[Myricom SNF include directory]),
940[
941	# User wants SNF with specific header directory
942	want_snf=yes
943	snf_include_dir=$withval
944],[])
945
946AC_ARG_WITH([snf-libraries],
947AC_HELP_STRING([--with-snf-libraries=DIR],[Myricom SNF library directory]),
948[
949	# User wants SNF with specific lib directory
950	want_snf=yes
951	snf_lib_dir=$withval
952],[])
953
954case "$V_PCAP" in
955bpf|linux|snf)
956	#
957	# We support the Sniffer API if we're on BSD, Linux, or if we're
958	# building a Sniffer-only libpcap.
959	#
960	;;
961*)
962	#
963	# If the user explicitly requested Sniffer, tell them it's not
964	# supported.
965	#
966	# If they expressed no preference, don't include it.
967	#
968	if test $want_snf = yes; then
969		AC_MSG_ERROR(Myricom SNF support only available with 'bpf' 'linux' and 'snf' packet capture types)
970	elif test $want_snf = yes; then
971		want_snf=no
972	fi
973	;;
974esac
975
976ac_cv_lbl_snf_api=no
977if test "$with_snf" != no; then
978
979	AC_MSG_CHECKING(whether we have Myricom Sniffer API)
980
981	if test -z "$snf_root"; then
982		snf_root=/opt/snf
983	fi
984
985	if test -z "$snf_include_dir"; then
986		snf_include_dir="$snf_root/include"
987	fi
988
989	if test -z "$snf_lib_dir"; then
990		snf_lib_dir="$snf_root/lib"
991	fi
992
993	if test -f "$snf_include_dir/snf.h"; then
994		ac_cv_lbl_snf_api=yes
995	fi
996	AC_MSG_RESULT([$ac_cv_lbl_snf_api ($snf_root)])
997
998	if test $ac_cv_lbl_snf_api = no; then
999		if test "$want_snf" = yes; then
1000			AC_MSG_ERROR(SNF API headers not found under $snf_include_dir; use --without-snf)
1001		fi
1002	else
1003		saved_ldflags=$LDFLAGS
1004		LDFLAGS="$LDFLAGS -L$snf_lib_dir"
1005		AC_CHECK_LIB([snf], [snf_init], [ac_cv_lbl_snf_api="yes"], [ac_cv_lbl_snf_api="no"])
1006		LDFLAGS="$saved_ldflags"
1007
1008		if test $ac_cv_lbl_snf_api = no; then
1009			if test "$want_snf" = yes; then
1010				AC_MSG_ERROR(SNF API cannot correctly be linked check config.log; use --without-snf)
1011			fi
1012		else
1013			V_INCLS="$V_INCLS -I$snf_include_dir"
1014			LIBS="$LIBS -lsnf"
1015			LDFLAGS="$LDFLAGS -L$snf_lib_dir"
1016			if test "$V_PCAP" != snf ; then
1017				SSRC="pcap-snf.c"
1018			fi
1019			AC_DEFINE(HAVE_SNF_API, 1, [define if you have Myricom SNF API])
1020		fi
1021	fi
1022fi
1023
1024if test "$V_PCAP" = snf -a "$ac_cv_lbl_snf_api" = no; then
1025	AC_MSG_ERROR(Specifying the capture type as 'snf' requires the Myricom Sniffer API to be present; use --with-snf=DIR)
1026fi
1027
1028AC_LBL_LEX_AND_YACC(V_LEX, V_YACC, pcap_)
1029if test "$V_LEX" = lex ; then
1030# Some versions of lex can't handle the definitions section of scanner.l .
1031# Try lexing it and complain if it can't deal.
1032	AC_CACHE_CHECK([for capable lex], tcpdump_cv_capable_lex,
1033		if lex -t scanner.l > /dev/null 2>&1; then
1034			tcpdump_cv_capable_lex=yes
1035		else
1036			tcpdump_cv_capable_lex=insufficient
1037		fi)
1038	if test $tcpdump_cv_capable_lex = insufficient ; then
1039		AC_MSG_ERROR([Your operating system's lex is insufficient to compile
1040 libpcap.  flex is a lex replacement that has many advantages, including
1041 being able to compile libpcap.  For more information, see
1042 http://www.gnu.org/software/flex/flex.html .])
1043	fi
1044fi
1045
1046#
1047# Assume, by default, no support for shared libraries and V7/BSD convention
1048# for man pages (file formats in section 5, miscellaneous info in section 7).
1049# Individual cases can override this.
1050#
1051DYEXT="none"
1052MAN_FILE_FORMATS=5
1053MAN_MISC_INFO=7
1054case "$host_os" in
1055
1056aix*)
1057	dnl Workaround to enable certain features
1058	AC_DEFINE(_SUN,1,[define on AIX to get certain functions])
1059
1060	#
1061	# AIX makes it fun to build shared and static libraries,
1062	# because they're *both* ".a" archive libraries.  We
1063	# build the static library for the benefit of the traditional
1064	# scheme of building libpcap and tcpdump in subdirectories of
1065	# the same directory, with tcpdump statically linked with the
1066	# libpcap in question, but we also build a shared library as
1067	# "libpcap.shareda" and install *it*, rather than the static
1068	# library, as "libpcap.a".
1069	#
1070	DYEXT="shareda"
1071
1072	case "$V_PCAP" in
1073
1074	dlpi)
1075		#
1076		# If we're using DLPI, applications will need to
1077		# use /lib/pse.exp if present, as we use the
1078		# STREAMS routines.
1079		#
1080		pseexe="/lib/pse.exp"
1081		AC_MSG_CHECKING(for $pseexe)
1082		if test -f $pseexe ; then
1083			AC_MSG_RESULT(yes)
1084			LIBS="-I:$pseexe"
1085		fi
1086		;;
1087
1088	bpf)
1089		#
1090		# If we're using BPF, we need "-lodm" and "-lcfg", as
1091		# we use them to load the BPF module.
1092		#
1093		LIBS="-lodm -lcfg"
1094		;;
1095	esac
1096	;;
1097
1098darwin*)
1099	DYEXT="dylib"
1100	V_CCOPT="$V_CCOPT -fno-common"
1101	AC_ARG_ENABLE(universal,
1102	AC_HELP_STRING([--disable-universal],[don't build universal on OS X]))
1103	if test "$enable_universal" != "no"; then
1104		case "$host_os" in
1105
1106		darwin9.*)
1107			#
1108			# Leopard.  Build for 32-bit PowerPC, 64-bit
1109			# PowerPC, x86, and x86-64, with 32-bit PowerPC
1110			# first.  (That's what Apple does.)
1111			#
1112			V_CCOPT="$V_CCOPT -arch ppc -arch ppc64 -arch i386 -arch x86_64"
1113			LDFLAGS="$LDFLAGS -arch ppc -arch ppc64 -arch i386 -arch x86_64"
1114			;;
1115
1116		darwin10.*)
1117			#
1118			# Snow Leopard.  Build for x86-64, x86, and
1119			# 32-bit PowerPC, with x86-64 first.  (That's
1120			# what Apple does, even though Snow Leopard
1121			# doesn't run on PPC, so PPC libpcap runs under
1122			# Rosetta, and Rosetta doesn't support BPF
1123			# ioctls, so PPC programs can't do live
1124			# captures.)
1125			#
1126			V_CCOPT="$V_CCOPT -arch x86_64 -arch i386 -arch ppc"
1127			LDFLAGS="$LDFLAGS -arch x86_64 -arch i386 -arch ppc"
1128			;;
1129
1130		darwin11.*)
1131			#
1132			# Lion.  Build for x86-64 and x86, with x86-64
1133			# first.  (That's probably what Apple does,
1134			# given that Rosetta is gone.)
1135			#
1136			V_CCOPT="$V_CCOPT -arch x86_64 -arch i386"
1137			LDFLAGS="$LDFLAGS -arch x86_64 -arch i386"
1138			;;
1139		esac
1140	fi
1141	;;
1142
1143hpux9*)
1144	AC_DEFINE(HAVE_HPUX9,1,[on HP-UX 9.x])
1145
1146	#
1147	# Use System V conventions for man pages.
1148	#
1149	MAN_FILE_FORMATS=4
1150	MAN_MISC_INFO=5
1151	;;
1152
1153hpux10.0*)
1154
1155	#
1156	# Use System V conventions for man pages.
1157	#
1158	MAN_FILE_FORMATS=4
1159	MAN_MISC_INFO=5
1160	;;
1161
1162hpux10.1*)
1163
1164	#
1165	# Use System V conventions for man pages.
1166	#
1167	MAN_FILE_FORMATS=4
1168	MAN_MISC_INFO=5
1169	;;
1170
1171hpux*)
1172	dnl HPUX 10.20 and above is similar to HPUX 9, but
1173	dnl not the same....
1174	dnl
1175	dnl XXX - DYEXT should be set to "sl" if this is building
1176	dnl for 32-bit PA-RISC, but should be left as "so" for
1177	dnl 64-bit PA-RISC or, I suspect, IA-64.
1178	AC_DEFINE(HAVE_HPUX10_20_OR_LATER,1,[on HP-UX 10.20 or later])
1179	if test "`uname -m`" = "ia64"; then
1180		DYEXT="so"
1181	else
1182		DYEXT="sl"
1183	fi
1184
1185	#
1186	# "-b" builds a shared library; "+h" sets the soname.
1187	#
1188	SHLIB_OPT="-b"
1189	SONAME_OPT="+h"
1190
1191	#
1192	# Use System V conventions for man pages.
1193	#
1194	MAN_FILE_FORMATS=4
1195	MAN_MISC_INFO=5
1196	;;
1197
1198irix*)
1199	#
1200	# Use System V conventions for man pages.
1201	#
1202	MAN_FILE_FORMATS=4
1203	MAN_MISC_INFO=5
1204	;;
1205
1206linux*|freebsd*|netbsd*|openbsd*|dragonfly*|kfreebsd*|gnu*)
1207	DYEXT="so"
1208
1209	#
1210	# Compiler assumed to be GCC; run-time linker may require a -R
1211	# flag.
1212	#
1213	if test "$libdir" != "/usr/lib"; then
1214		V_RFLAGS=-Wl,-R$libdir
1215	fi
1216	;;
1217
1218osf*)
1219	DYEXT="so"
1220
1221	#
1222	# Use System V conventions for man pages.
1223	#
1224	MAN_FILE_FORMATS=4
1225	MAN_MISC_INFO=5
1226	;;
1227
1228sinix*)
1229	AC_MSG_CHECKING(if SINIX compiler defines sinix)
1230	AC_CACHE_VAL(ac_cv_cc_sinix_defined,
1231		AC_TRY_COMPILE(
1232		    [],
1233		    [int i = sinix;],
1234		    ac_cv_cc_sinix_defined=yes,
1235		    ac_cv_cc_sinix_defined=no))
1236	    AC_MSG_RESULT($ac_cv_cc_sinix_defined)
1237	    if test $ac_cv_cc_sinix_defined = no ; then
1238		    AC_DEFINE(sinix,1,[on sinix])
1239	    fi
1240	;;
1241
1242solaris*)
1243	AC_DEFINE(HAVE_SOLARIS,1,[On solaris])
1244
1245	DYEXT="so"
1246	#
1247	# Use System V conventions for man pages.
1248	#
1249	MAN_FILE_FORMATS=4
1250	MAN_MISC_INFO=5
1251	;;
1252esac
1253
1254AC_ARG_ENABLE(shared,
1255AC_HELP_STRING([--enable-shared],[build shared libraries @<:@default=yes, if support available@:>@]))
1256test "x$enable_shared" = "xno" && DYEXT="none"
1257
1258AC_PROG_RANLIB
1259AC_CHECK_TOOL([AR], [ar])
1260
1261AC_LBL_DEVEL(V_CCOPT)
1262
1263AC_LBL_SOCKADDR_SA_LEN
1264
1265AC_LBL_SOCKADDR_STORAGE
1266
1267AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1
1268
1269AC_LBL_UNALIGNED_ACCESS
1270
1271#
1272# Makefile.in includes rules to generate version.h, so we assume
1273# that it will be generated if autoconf is used.
1274#
1275AC_DEFINE(HAVE_VERSION_H, 1, [define if version.h is generated in the build procedure])
1276
1277rm -f net
1278ln -s ${srcdir}/bpf/net net
1279
1280AC_SUBST(V_CCOPT)
1281AC_SUBST(V_DEFS)
1282AC_SUBST(V_FINDALLDEVS)
1283AC_SUBST(V_INCLS)
1284AC_SUBST(V_LEX)
1285AC_SUBST(V_PCAP)
1286AC_SUBST(V_SHLIB_CMD)
1287AC_SUBST(V_SHLIB_OPT)
1288AC_SUBST(V_SONAME_OPT)
1289AC_SUBST(V_RPATH_OPT)
1290AC_SUBST(V_YACC)
1291AC_SUBST(ADDLOBJS)
1292AC_SUBST(ADDLARCHIVEOBJS)
1293AC_SUBST(SSRC)
1294AC_SUBST(DYEXT)
1295AC_SUBST(MAN_FILE_FORMATS)
1296AC_SUBST(MAN_MISC_INFO)
1297
1298dnl check for USB sniffing support
1299AC_MSG_CHECKING(for USB sniffing support)
1300case "$host_os" in
1301linux*)
1302	AC_DEFINE(PCAP_SUPPORT_USB, 1, [target host supports USB sniffing])
1303	USB_SRC=pcap-usb-linux.c
1304	AC_MSG_RESULT(yes)
1305	ac_usb_dev_name=`udevinfo -q name -p /sys/class/usb_device/usbmon 2>/dev/null`
1306	if test $? -ne 0 ; then
1307	  ac_usb_dev_name="usbmon"
1308	fi
1309	AC_DEFINE_UNQUOTED(LINUX_USB_MON_DEV, "/dev/$ac_usb_dev_name", [path for device for USB sniffing])
1310	AC_MSG_NOTICE(Device for USB sniffing is /dev/$ac_usb_dev_name)
1311	#
1312	# Do we have a version of <linux/compiler.h> available?
1313	# If so, we might need it for <linux/usbdevice_fs.h>.
1314	#
1315	AC_CHECK_HEADERS(linux/compiler.h)
1316	if test "$ac_cv_header_linux_compiler_h" = yes; then
1317	  #
1318	  # Yes - include it when testing for <linux/usbdevice_fs.h>.
1319	  #
1320	  AC_CHECK_HEADERS(linux/usbdevice_fs.h,,,[#include <linux/compiler.h>])
1321	else
1322	  AC_CHECK_HEADERS(linux/usbdevice_fs.h)
1323	fi
1324	if test "$ac_cv_header_linux_usbdevice_fs_h" = yes; then
1325	  #
1326	  # OK, does it define bRequestType?  Older versions of the kernel
1327	  # define fields with names like "requesttype, "request", and
1328	  # "value", rather than "bRequestType", "bRequest", and
1329	  # "wValue".
1330	  #
1331	  AC_MSG_CHECKING(if usbdevfs_ctrltransfer struct has bRequestType member)
1332	  AC_CACHE_VAL(ac_cv_usbdevfs_ctrltransfer_has_bRequestType,
1333	    AC_TRY_COMPILE([
1334AC_INCLUDES_DEFAULT
1335#ifdef HAVE_SYS_BITYPES_H
1336#include <sys/bitypes.h>
1337#endif
1338#ifdef HAVE_LINUX_COMPILER_H
1339#include <linux/compiler.h>
1340#endif
1341#include <linux/usbdevice_fs.h>],
1342	      [u_int i = sizeof(((struct usbdevfs_ctrltransfer *)0)->bRequestType)],
1343	      ac_cv_usbdevfs_ctrltransfer_has_bRequestType=yes,
1344	      ac_cv_usbdevfs_ctrltransfer_has_bRequestType=no))
1345	    AC_MSG_RESULT($ac_cv_usbdevfs_ctrltransfer_has_bRequestType)
1346	    if test $ac_cv_usbdevfs_ctrltransfer_has_bRequestType = yes ; then
1347	      AC_DEFINE(HAVE_USBDEVFS_CTRLTRANSFER_BREQUESTTYPE,1,
1348	        [if struct usbdevfs_ctrltransfer has bRequestType])
1349	    fi
1350	fi
1351	;;
1352*)
1353	AC_MSG_RESULT(no)
1354	;;
1355esac
1356AC_SUBST(PCAP_SUPPORT_USB)
1357AC_SUBST(USB_SRC)
1358
1359dnl check for netfilter sniffing support
1360AC_MSG_CHECKING(whether the platform could support netfilter sniffing)
1361case "$host_os" in
1362linux*)
1363	AC_MSG_RESULT(yes)
1364	#
1365	# Life's too short to deal with trying to get this to compile
1366	# if you don't get the right types defined with
1367	# __KERNEL_STRICT_NAMES getting defined by some other include.
1368	#
1369	# Check whether the includes Just Work.  If not, don't turn on
1370	# netfilter support.
1371	#
1372	AC_MSG_CHECKING(whether we can compile the netfilter support)
1373	AC_CACHE_VAL(ac_cv_netfilter_can_compile,
1374	  AC_TRY_COMPILE([
1375AC_INCLUDES_DEFAULT
1376#include <sys/socket.h>
1377#include <netinet/in.h>
1378#include <linux/types.h>
1379
1380#include <linux/netlink.h>
1381#include <linux/netfilter.h>
1382#include <linux/netfilter/nfnetlink.h>
1383#include <linux/netfilter/nfnetlink_log.h>
1384#include <linux/netfilter/nfnetlink_queue.h>],
1385	    [],
1386	    ac_cv_netfilter_can_compile=yes,
1387	    ac_cv_netfilter_can_compile=no))
1388	AC_MSG_RESULT($ac_cv_netfilter_can_compile)
1389	if test $ac_cv_netfilter_can_compile = yes ; then
1390	  AC_DEFINE(PCAP_SUPPORT_NETFILTER, 1,
1391	    [target host supports netfilter sniffing])
1392	  NETFILTER_SRC=pcap-netfilter-linux.c
1393	fi
1394	;;
1395*)
1396	AC_MSG_RESULT(no)
1397	;;
1398esac
1399AC_SUBST(PCAP_SUPPORT_NETFILTER)
1400AC_SUBST(NETFILTER_SRC)
1401
1402AC_ARG_ENABLE([bluetooth],
1403[AC_HELP_STRING([--enable-bluetooth],[enable Bluetooth support @<:@default=yes, if support available@:>@])],
1404    [],
1405    [enable_bluetooth=yes])
1406
1407if test "x$enable_bluetooth" != "xno" ; then
1408	dnl check for Bluetooth sniffing support
1409	case "$host_os" in
1410	linux*)
1411		AC_CHECK_HEADER(bluetooth/bluetooth.h,
1412		[
1413		  AC_DEFINE(PCAP_SUPPORT_BT, 1, [target host supports Bluetooth sniffing])
1414		  BT_SRC=pcap-bt-linux.c
1415		  AC_MSG_NOTICE(Bluetooth sniffing is supported)
1416
1417		  #
1418		  # OK, does struct sockaddr_hci have an hci_channel
1419		  # member?
1420		  #
1421		  AC_MSG_CHECKING(if struct sockaddr_hci has hci_channel member)
1422		  AC_CACHE_VAL(ac_cv_lbl_sockaddr_hci_has_hci_channel,
1423		    AC_TRY_COMPILE(
1424[
1425#include <bluetooth/bluetooth.h>
1426#include <bluetooth/hci.h>
1427],
1428		      [u_int i = sizeof(((struct sockaddr_hci *)0)->hci_channel)],
1429		      ac_cv_lbl_sockaddr_hci_has_hci_channel=yes,
1430		      ac_cv_lbl_sockaddr_hci_has_hci_channel=no))
1431		    AC_MSG_RESULT($ac_cv_lbl_sockaddr_hci_has_hci_channel)
1432		    if test $ac_cv_lbl_sockaddr_hci_has_hci_channel = yes ; then
1433		      AC_DEFINE(SOCKADDR_HCI_HAS_HCI_CHANNEL,,
1434			[if struct sockaddr_hci has hci_channel member])
1435		    fi
1436		],
1437		AC_MSG_NOTICE(Bluetooth sniffing is not supported; install bluez-lib devel to enable it)
1438		)
1439		;;
1440	*)
1441		AC_MSG_NOTICE(no Bluetooth sniffing support implemented for $host_os)
1442		;;
1443	esac
1444	AC_SUBST(PCAP_SUPPORT_BT)
1445	AC_SUBST(BT_SRC)
1446fi
1447
1448AC_ARG_ENABLE([canusb],
1449[AC_HELP_STRING([--enable-canusb],[enable canusb support @<:@default=yes, if support available@:>@])],
1450    [],
1451    [enable_canusb=yes])
1452
1453if test "x$enable_canusb" != "xno" ; then
1454	dnl check for canusb support
1455	case "$host_os" in
1456	linux*)
1457		AC_CHECK_HEADER(libusb-1.0/libusb.h,
1458		[
1459		    AC_DEFINE(PCAP_SUPPORT_CANUSB, 1, [target host supports canusb])
1460		    CANUSB_SRC=pcap-canusb-linux.c
1461		    LIBS="-lusb-1.0 -lpthread $LIBS"
1462		    AC_MSG_NOTICE(canusb sniffing is supported)
1463		],
1464		AC_MSG_NOTICE(canusb sniffing is not supported; install libusb1.0 lib devel to enable it)
1465		)
1466		;;
1467	*)
1468		AC_MSG_NOTICE(no canusb support implemented for $host_os)
1469		;;
1470	esac
1471	AC_SUBST(PCAP_SUPPORT_CANUSB)
1472	AC_SUBST(CANUSB_SRC)
1473fi
1474
1475AC_ARG_ENABLE([can],
1476[AC_HELP_STRING([--enable-can],[enable CAN support @<:@default=yes, if support available@:>@])],
1477    [],
1478    [enable_can=yes])
1479
1480if test "x$enable_can" != "xno" ; then
1481	dnl check for CAN sniffing support
1482	case "$host_os" in
1483	linux*)
1484		AC_CHECK_HEADER(linux/can.h,
1485			[ AC_DEFINE(PCAP_SUPPORT_CAN, 1, [target host supports CAN sniffing])
1486			CAN_SRC=pcap-can-linux.c
1487			AC_MSG_NOTICE(CAN sniffing is supported)],
1488			AC_MSG_NOTICE(CAN sniffing is not supported),
1489			[#include <sys/socket.h>]
1490		   )
1491		;;
1492	*)
1493		AC_MSG_NOTICE(no CAN sniffing support implemented for $host_os)
1494		;;
1495	esac
1496	AC_SUBST(PCAP_SUPPORT_CAN)
1497	AC_SUBST(CAN_SRC)
1498fi
1499
1500dnl check for hardware timestamp support
1501case "$host_os" in
1502linux*)
1503	AC_CHECK_HEADERS([linux/net_tstamp.h])
1504	;;
1505*)
1506	AC_MSG_NOTICE(no hardware timestamp support implemented for $host_os)
1507	;;
1508esac
1509
1510AC_PROG_INSTALL
1511
1512AC_CONFIG_HEADER(config.h)
1513
1514AC_OUTPUT(Makefile pcap-filter.manmisc pcap-linktype.manmisc
1515	pcap-tstamp.manmisc pcap-savefile.manfile pcap.3pcap
1516	pcap_compile.3pcap pcap_datalink.3pcap pcap_dump_open.3pcap
1517	pcap_list_datalinks.3pcap pcap_list_tstamp_types.3pcap
1518	pcap_open_dead.3pcap pcap_open_offline.3pcap
1519	pcap_set_tstamp_type.3pcap)
1520
1521if test -f .devel ; then
1522	make depend
1523fi
1524exit 0
1525