[ViewVC] Diff of: cvs/gvpe/src/vpn.C

Comparing gvpe/src/vpn.C (file contents):
Revision 1.15 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.28 by pcg, Thu Mar 3 16:54:34 2005 UTC

…		…
1	/*	1	/*
2	vpn.C -- handle the protocol, encryption, handshaking etc.	2	vpn.C -- handle the protocol, encryption, handshaking etc.
		3	Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
3		4
		5	This file is part of GVPE.
		6
4	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify
5	it under the terms of the GNU General Public License as published by	8	it under the terms of the GNU General Public License as published by
6	the Free Software Foundation; either version 2 of the License, or	9	the Free Software Foundation; either version 2 of the License, or
7	(at your option) any later version.	10	(at your option) any later version.
8		11
9	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful,
10	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12	GNU General Public License for more details.	15	GNU General Public License for more details.
13		16
14	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
15	along with this program; if not, write to the Free Software	18	along with gvpe; if not, write to the Free Software
16	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17	*/	20	*/
18		21
19	#include "config.h"	22	#include "config.h"
20		23
21	#include <list>	24	#include <list>
22		25
		26	#include <cstdio>
		27	#include <cstring>
23	#include <cstdlib>	28	#include <cstdlib>
24	#include <cstring>
25	#include <cstdio>
26		29
27	#include <sys/types.h>	30	#include <sys/types.h>
28	#include <sys/socket.h>	31	#include <sys/socket.h>
29	#include <sys/poll.h>
30	#include <sys/wait.h>	32	#include <sys/wait.h>
31	#include <errno.h>	33	#include <errno.h>
32	#include <time.h>	34	#include <time.h>
33	#include <unistd.h>	35	#include <unistd.h>
34	#include <fcntl.h>	36	#include <fcntl.h>
40		42
41	#include "connection.h"	43	#include "connection.h"
42	#include "util.h"	44	#include "util.h"
43	#include "vpn.h"	45	#include "vpn.h"
44		46
		47	vpn network; // THE vpn (bad design...)
		48
45	/////////////////////////////////////////////////////////////////////////////	49	/////////////////////////////////////////////////////////////////////////////
46		50
47	const char *vpn::script_if_up ()	51	const char *vpn::script_if_up ()
48	{	52	{
49	// the tunnel device mtu should be the physical mtu - overhead	53	// the tunnel device mtu should be the physical mtu - overhead
…		…
52	mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion	56	mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion
53	mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round	57	mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round
54	mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again	58	mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again
55		59
56	char *env;	60	char *env;
57	asprintf (&env, "CONFBASE=%s", confbase);	61	asprintf (&env, "CONFBASE=%s", confbase); putenv (env);
58	putenv (env);
59	asprintf (&env, "NODENAME=%s", THISNODE->nodename);	62	asprintf (&env, "NODENAME=%s", THISNODE->nodename); putenv (env);
60	putenv (env);
61	asprintf (&env, "NODEID=%d", THISNODE->id);	63	asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env);
62	putenv (env);
63	asprintf (&env, "IFNAME=%s", tap->interface ());	64	asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env);
64	putenv (env);	65	asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env);
		66	asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env);
65	asprintf (&env, "MTU=%d", mtu);	67	asprintf (&env, "MTU=%d", mtu); putenv (env);
66	putenv (env);
67	asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x",	68	asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x",
68	0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8,	69	0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8,
69	THISNODE->id & 0xff);	70	THISNODE->id & 0xff);
70	putenv (env);	71	putenv (env);
71		72
…		…
99	sockinfo si (THISNODE, PROT_IPv4);	100	sockinfo si (THISNODE, PROT_IPv4);
100		101
101	if (bind (ipv4_fd, si.sav4 (), si.salenv4 ()))	102	if (bind (ipv4_fd, si.sav4 (), si.salenv4 ()))
102	{	103	{
103	slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno));	104	slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno));
104	exit (1);	105	exit (EXIT_FAILURE);
105	}	106	}
106		107
107	ipv4_ev_watcher.start (ipv4_fd, POLLIN);	108	ipv4_ev_watcher.start (ipv4_fd, EVENT_READ);
108	}	109	}
109		110
110	udpv4_fd = -1;	111	udpv4_fd = -1;
111		112
112	if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port)	113	if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port)
…		…
137	sockinfo si (THISNODE, PROT_UDPv4);	138	sockinfo si (THISNODE, PROT_UDPv4);
138		139
139	if (bind (udpv4_fd, si.sav4 (), si.salenv4 ()))	140	if (bind (udpv4_fd, si.sav4 (), si.salenv4 ()))
140	{	141	{
141	slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno));	142	slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno));
142	exit (1);	143	exit (EXIT_FAILURE);
143	}	144	}
144		145
145	udpv4_ev_watcher.start (udpv4_fd, POLLIN);	146	udpv4_ev_watcher.start (udpv4_fd, EVENT_READ);
146	}	147	}
147		148
148	icmpv4_fd = -1;	149	icmpv4_fd = -1;
149		150
150	#if ENABLE_ICMP	151	#if ENABLE_ICMP
…		…
181	sockinfo si (THISNODE, PROT_ICMPv4);	182	sockinfo si (THISNODE, PROT_ICMPv4);
182		183
183	if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ()))	184	if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ()))
184	{	185	{
185	slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno));	186	slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno));
186	exit (1);	187	exit (EXIT_FAILURE);
187	}	188	}
188		189
189	icmpv4_ev_watcher.start (icmpv4_fd, POLLIN);	190	icmpv4_ev_watcher.start (icmpv4_fd, EVENT_READ);
190	}	191	}
191	#endif	192	#endif
192		193
193	tcpv4_fd = -1;	194	tcpv4_fd = -1;
194		195
…		…
211	sockinfo si (THISNODE, PROT_TCPv4);	212	sockinfo si (THISNODE, PROT_TCPv4);
212		213
213	if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ()))	214	if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ()))
214	{	215	{
215	slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno));	216	slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno));
216	exit (1);	217	exit (EXIT_FAILURE);
217	}	218	}
218		219
219	if (listen (tcpv4_fd, 5))	220	if (listen (tcpv4_fd, 5))
220	{	221	{
221	slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno));	222	slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno));
222	exit (1);	223	exit (EXIT_FAILURE);
		224	}
		225
		226	tcpv4_ev_watcher.start (tcpv4_fd, EVENT_READ);
		227	}
		228	#endif
		229
		230	#if ENABLE_DNS
		231	if (THISNODE->protocols & PROT_DNSv4)
		232	{
		233	dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);
		234
		235	if (dnsv4_fd < 0)
		236	return -1;
		237
		238	// standard daemon practise...
		239	{
		240	int oval = 1;
		241	setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
		242	}
		243
		244	sockinfo si (THISNODE, PROT_DNSv4);
		245
		246	if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ()))
223	}	247	{
		248	slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno));
		249	exit (EXIT_FAILURE);
		250	}
224		251
225	tcpv4_ev_watcher.start (tcpv4_fd, POLLIN);	252	dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ);
226	}	253	}
227	#endif	254	#endif
228		255
229	tap = new tap_device ();	256	tap = new tap_device ();
230	if (!tap) //D this, of course, never catches	257	if (!tap) //D this, of course, never catches
231	{	258	{
232	slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname);	259	slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname);
233	exit (1);	260	exit (EXIT_FAILURE);
234	}	261	}
235		262
236	run_script (run_script_cb (this, &vpn::script_if_up), true);	263	run_script (run_script_cb (this, &vpn::script_if_up), true);
237		264
238	tap_ev_watcher.start (tap->fd, POLLIN);	265	tap_ev_watcher.start (tap->fd, EVENT_READ);
239		266
240	reconnect_all ();	267	reconnect_all ();
241		268
242	return 0;	269	return 0;
243	}
244
245	// send a vpn packet out to other hosts
246	bool
247	vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)
248	{
249	switch (si.prot)
250	{
251	case PROT_IPv4:
252	return send_ipv4_packet (pkt, si, tos);
253
254	case PROT_UDPv4:
255	return send_udpv4_packet (pkt, si, tos);
256
257	#if ENABLE_TCP
258	case PROT_TCPv4:
259	return send_tcpv4_packet (pkt, si, tos);
260	#endif
261
262	#if ENABLE_ICMP
263	case PROT_ICMPv4:
264	return send_icmpv4_packet (pkt, si, tos);
265	#endif
266
267	default:
268	slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si);
269	return false;
270	}
271	}	270	}
272		271
273	bool	272	bool
274	vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)	273	vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
275	{	274	{
…		…
333	setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);	332	setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);
334	#endif	333	#endif
335	sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());	334	sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
336		335
337	return true;	336	return true;
		337	}
		338
		339	void
		340	vpn::inject_data_packet (tap_packet *pkt, int dst)
		341	{
		342	if (dst)
		343	{
		344	// unicast
		345	if (dst != THISNODE->id)
		346	conns[dst - 1]->inject_data_packet (pkt);
		347	}
		348	else
		349	{
		350	// broadcast, this is ugly, but due to the security policy
		351	// we have to connect to all hosts...
		352	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
		353	if ((*c)->conf != THISNODE)
		354	(*c)->inject_data_packet (pkt, true);
		355	}
338	}	356	}
339		357
340	void	358	void
341	vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)	359	vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)
342	{	360	{
…		…
359	connection *c = conns[src - 1];	377	connection *c = conns[src - 1];
360		378
361	if (dst == 0)	379	if (dst == 0)
362	slog (L_WARN, _("%s(%s): received broadcast (protocol violation)"),	380	slog (L_WARN, _("%s(%s): received broadcast (protocol violation)"),
363	c->conf->nodename, (const char *)rsi);	381	c->conf->nodename, (const char *)rsi);
364	else if (dst != 0 && dst != THISNODE->id)	382	else if (dst != THISNODE->id)
365	{	383	{
366	if (THISNODE->routerprio)	384	if (THISNODE->routerprio)
367	// the tos setting gets lost here. who cares.	385	// the tos setting gets lost here. who cares.
368	conns[dst - 1]->inject_vpn_packet (pkt);	386	conns[dst - 1]->inject_vpn_packet (pkt);
369	else	387	else
…		…
378	}	396	}
379		397
380	void	398	void
381	vpn::ipv4_ev (io_watcher &w, short revents)	399	vpn::ipv4_ev (io_watcher &w, short revents)
382	{	400	{
383	if (revents & (POLLIN \| POLLERR))	401	if (revents & EVENT_READ)
384	{	402	{
385	vpn_packet *pkt = new vpn_packet;	403	vpn_packet *pkt = new vpn_packet;
386	struct sockaddr_in sa;	404	struct sockaddr_in sa;
387	socklen_t sa_len = sizeof (sa);	405	socklen_t sa_len = sizeof (sa);
388	int len;	406	int len;
…		…
407	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));	425	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));
408	}	426	}
409		427
410	delete pkt;	428	delete pkt;
411	}	429	}
412	else if (revents & POLLHUP)
413	{
414	// this cannot ;) happen on udp sockets
415	slog (L_ERR, _("FATAL: POLLHUP on ipv4 fd, terminating."));
416	exit (1);
417	}
418	else	430	else
419	{	431	{
420	slog (L_ERR,	432	slog (L_ERR,
421	_("FATAL: unknown revents %08x in socket, terminating\n"),	433	_("FATAL: unknown revents %08x in socket, terminating\n"),
422	revents);	434	revents);
423	exit (1);	435	exit (EXIT_FAILURE);
424	}	436	}
425	}	437	}
426		438
427	#if ENABLE_ICMP	439	#if ENABLE_ICMP
428	void	440	void
429	vpn::icmpv4_ev (io_watcher &w, short revents)	441	vpn::icmpv4_ev (io_watcher &w, short revents)
430	{	442	{
431	if (revents & (POLLIN \| POLLERR))	443	if (revents & EVENT_READ)
432	{	444	{
433	vpn_packet *pkt = new vpn_packet;	445	vpn_packet *pkt = new vpn_packet;
434	struct sockaddr_in sa;	446	struct sockaddr_in sa;
435	socklen_t sa_len = sizeof (sa);	447	socklen_t sa_len = sizeof (sa);
436	int len;	448	int len;
…		…
461	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));	473	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));
462	}	474	}
463		475
464	delete pkt;	476	delete pkt;
465	}	477	}
466	else if (revents & POLLHUP)
467	{
468	// this cannot ;) happen on udp sockets
469	slog (L_ERR, _("FATAL: POLLHUP on icmpv4 fd, terminating."));
470	exit (1);
471	}
472	else	478	else
473	{	479	{
474	slog (L_ERR,	480	slog (L_ERR,
475	_("FATAL: unknown revents %08x in socket, terminating\n"),	481	_("FATAL: unknown revents %08x in socket, terminating\n"),
476	revents);	482	revents);
477	exit (1);	483	exit (EXIT_FAILURE);
478	}	484	}
479	}	485	}
480	#endif	486	#endif
481		487
482	void	488	void
483	vpn::udpv4_ev (io_watcher &w, short revents)	489	vpn::udpv4_ev (io_watcher &w, short revents)
484	{	490	{
485	if (revents & (POLLIN \| POLLERR))	491	if (revents & EVENT_READ)
486	{	492	{
487	vpn_packet *pkt = new vpn_packet;	493	vpn_packet *pkt = new vpn_packet;
488	struct sockaddr_in sa;	494	struct sockaddr_in sa;
489	socklen_t sa_len = sizeof (sa);	495	socklen_t sa_len = sizeof (sa);
490	int len;	496	int len;
…		…
505	slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno));	511	slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno));
506	}	512	}
507		513
508	delete pkt;	514	delete pkt;
509	}	515	}
510	else if (revents & POLLHUP)
511	{
512	// this cannot ;) happen on udp sockets
513	slog (L_ERR, _("FATAL: POLLHUP on udp v4 fd, terminating."));
514	exit (1);
515	}
516	else	516	else
517	{	517	{
518	slog (L_ERR,	518	slog (L_ERR,
519	_("FATAL: unknown revents %08x in socket, terminating\n"),	519	_("FATAL: unknown revents %08x in socket, terminating\n"),
520	revents);	520	revents);
521	exit (1);	521	exit (EXIT_FAILURE);
522	}	522	}
523	}	523	}
524		524
525	void	525	void
526	vpn::tap_ev (io_watcher &w, short revents)	526	vpn::tap_ev (io_watcher &w, short revents)
527	{	527	{
528	if (revents & POLLIN)	528	if (revents & EVENT_READ)
529	{	529	{
530	/* process data */	530	/* process data */
531	tap_packet *pkt;	531	tap_packet *pkt;
532		532
533	pkt = tap->recv ();	533	pkt = tap->recv ();
534		534
		535	if (!pkt)
		536	return;
		537
		538	if (pkt->len > 14)
		539	{
535	int dst = mac2id (pkt->dst);	540	int dst = mac2id (pkt->dst);
536	int src = mac2id (pkt->src);	541	int src = mac2id (pkt->src);
537		542
538	if (src != THISNODE->id)	543	if (src != THISNODE->id)
539	{
540	slog (L_ERR, _("FATAL: tap packet not originating on current node received, exiting."));
541	exit (1);
542	}
543
544	if (dst == THISNODE->id)
545	{
546	slog (L_ERR, _("FATAL: tap packet destined for current node received, exiting."));
547	exit (1);
548	}
549
550	if (dst > conns.size ())
551	slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst);
552	else
553	{
554	if (dst)
555	{	544	{
556	// unicast	545	slog (L_ERR, _("FATAL: tap packet not originating on current node received, exiting."));
557	if (dst != THISNODE->id)	546	exit (EXIT_FAILURE);
558	conns[dst - 1]->inject_data_packet (pkt);
559	}	547	}
		548
		549	if (dst == THISNODE->id)
		550	{
		551	slog (L_ERR, _("FATAL: tap packet destined for current node received, exiting."));
		552	exit (EXIT_FAILURE);
		553	}
		554
		555	if (dst > conns.size ())
		556	slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst);
560	else	557	else
561	{
562	// broadcast, this is ugly, but due to the security policy
563	// we have to connect to all hosts...
564	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
565	if ((*c)->conf != THISNODE)
566	(*c)->inject_data_packet (pkt);	558	inject_data_packet (pkt, dst);
567	}
568	}	559	}
569		560
570	delete pkt;	561	delete pkt;
571	}
572	else if (revents & (POLLHUP \| POLLERR))
573	{
574	slog (L_ERR, _("FATAL: POLLHUP or POLLERR on network device fd, terminating."));
575	exit (1);
576	}	562	}
577	else	563	else
578	abort ();	564	abort ();
579	}	565	}
580		566
…		…
586	if (events & EVENT_SHUTDOWN)	572	if (events & EVENT_SHUTDOWN)
587	{	573	{
588	slog (L_INFO, _("preparing shutdown..."));	574	slog (L_INFO, _("preparing shutdown..."));
589		575
590	shutdown_all ();	576	shutdown_all ();
591
592	remove_pid (pidfilename);	577	remove_pid (conf.pidfilename);
593
594	slog (L_INFO, _("terminating"));	578	slog (L_INFO, _("terminating"));
595		579	exit (EXIT_SUCCESS);
596	exit (0);
597	}	580	}
598		581
599	if (events & EVENT_RECONNECT)	582	if (events & EVENT_RECONNECT)
600	{	583	{
601	slog (L_INFO, _("forced reconnect"));	584	slog (L_INFO, _("forced reconnect"));
…		…
603	reconnect_all ();	586	reconnect_all ();
604	}	587	}
605		588
606	events = 0;	589	events = 0;
607	}	590	}
608
609	w.at = TSTAMP_CANCEL;
610	}	591	}
611		592
612	void	593	void
613	vpn::shutdown_all ()	594	vpn::shutdown_all ()
614	{	595	{
…		…
627	connection_init ();	608	connection_init ();
628		609
629	for (configuration::node_vector::iterator i = conf.nodes.begin ();	610	for (configuration::node_vector::iterator i = conf.nodes.begin ();
630	i != conf.nodes.end (); ++i)	611	i != conf.nodes.end (); ++i)
631	{	612	{
632	connection *conn = new connection (this);	613	connection conn = new connection (this, i);
633
634	conn->conf = *i;
635	conns.push_back (conn);	614	conns.push_back (conn);
636
637	conn->establish_connection ();	615	conn->establish_connection ();
638	}	616	}
639	}	617	}
640		618
641	connection *vpn::find_router ()	619	connection *vpn::find_router ()
…		…
704	, tcpv4_ev_watcher (this, &vpn::tcpv4_ev)	682	, tcpv4_ev_watcher (this, &vpn::tcpv4_ev)
705	#endif	683	#endif
706	#if ENABLE_ICMP	684	#if ENABLE_ICMP
707	, icmpv4_ev_watcher(this, &vpn::icmpv4_ev)	685	, icmpv4_ev_watcher(this, &vpn::icmpv4_ev)
708	#endif	686	#endif
		687	#if ENABLE_DNS
		688	, dnsv4_ev_watcher (this, &vpn::dnsv4_ev)
		689	#endif
709	, tap_ev_watcher (this, &vpn::tap_ev)	690	, tap_ev_watcher (this, &vpn::tap_ev)
710	{	691	{
711	}	692	}
712		693
713	vpn::~vpn ()	694	vpn::~vpn ()

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing gvpe/src/vpn.C (file contents): Revision 1.15 by pcg, Tue Oct 14 15:48:15 2003 UTC vs. Revision 1.28 by pcg, Thu Mar 3 16:54:34 2005 UTC

Diff Legend

Comparing gvpe/src/vpn.C (file contents):
Revision 1.15 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.28 by pcg, Thu Mar 3 16:54:34 2005 UTC