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

Comparing gvpe/src/connection.C (file contents):
Revision 1.3 by pcg, Wed Apr 2 05:15:00 2003 UTC vs.
Revision 1.10 by pcg, Sun Apr 6 18:12:18 2003 UTC

…		…
85	rsachallenge chg;	85	rsachallenge chg;
86	};	86	};
87		87
88	struct rsa_cache : list<rsa_entry>	88	struct rsa_cache : list<rsa_entry>
89	{	89	{
90	void cleaner_cb (tstamp &ts); time_watcher cleaner;	90	void cleaner_cb (time_watcher &w); time_watcher cleaner;
91		91
92	bool find (const rsaid &id, rsachallenge &chg)	92	bool find (const rsaid &id, rsachallenge &chg)
93	{	93	{
94	for (iterator i = begin (); i != end (); ++i)	94	for (iterator i = begin (); i != end (); ++i)
95	{	95	{
…		…
129	: cleaner (this, &rsa_cache::cleaner_cb)	129	: cleaner (this, &rsa_cache::cleaner_cb)
130	{ }	130	{ }
131		131
132	} rsa_cache;	132	} rsa_cache;
133		133
134	void rsa_cache::cleaner_cb (tstamp &ts)	134	void rsa_cache::cleaner_cb (time_watcher &w)
135	{	135	{
136	if (empty ())	136	if (empty ())
137	ts = TSTAMP_CANCEL;	137	w.at = TSTAMP_CANCEL;
138	else	138	else
139	{	139	{
140	ts = NOW + RSA_TTL;	140	w.at = NOW + RSA_TTL;
141		141
142	for (iterator i = begin (); i != end (); )	142	for (iterator i = begin (); i != end (); )
143	if (i->expire <= NOW)	143	if (i->expire <= NOW)
144	i = erase (i);	144	i = erase (i);
145	else	145	else
…		…
197	// only do action once every x seconds per host whole allowing bursts.	197	// only do action once every x seconds per host whole allowing bursts.
198	// this implementation ("splay list" ;) is inefficient,	198	// this implementation ("splay list" ;) is inefficient,
199	// but low on resources.	199	// but low on resources.
200	struct net_rate_limiter : list<net_rateinfo>	200	struct net_rate_limiter : list<net_rateinfo>
201	{	201	{
202	static const double ALPHA = 1. - 1. / 90.; // allow bursts	202	static const double ALPHA = 1. - 1. / 180.; // allow bursts
203	static const double CUTOFF = 20.; // one event every CUTOFF seconds	203	static const double CUTOFF = 10.; // one event every CUTOFF seconds
204	static const double EXPIRE = CUTOFF * 30.; // expire entries after this time	204	static const double EXPIRE = CUTOFF * 30.; // expire entries after this time
		205	static const double MAXDIF = CUTOFF * (1. / (1. - ALPHA)); // maximum diff /count value
205		206
206	bool can (const sockinfo &si) { return can((u32)si.host); }	207	bool can (const sockinfo &si) { return can((u32)si.host); }
207	bool can (u32 host);	208	bool can (u32 host);
208	};	209	};
209		210
…		…
225	{	226	{
226	net_rateinfo ri;	227	net_rateinfo ri;
227		228
228	ri.host = host;	229	ri.host = host;
229	ri.pcnt = 1.;	230	ri.pcnt = 1.;
230	ri.diff = CUTOFF * (1. / (1. - ALPHA));	231	ri.diff = MAXDIF;
231	ri.last = NOW;	232	ri.last = NOW;
232		233
233	push_front (ri);	234	push_front (ri);
234		235
235	return true;	236	return true;
…		…
242	ri.pcnt = ri.pcnt * ALPHA;	243	ri.pcnt = ri.pcnt * ALPHA;
243	ri.diff = ri.diff * ALPHA + (NOW - ri.last);	244	ri.diff = ri.diff * ALPHA + (NOW - ri.last);
244		245
245	ri.last = NOW;	246	ri.last = NOW;
246		247
		248	double dif = ri.diff / ri.pcnt;
		249
247	bool send = ri.diff / ri.pcnt > CUTOFF;	250	bool send = dif > CUTOFF;
248		251
		252	if (dif > MAXDIF)
		253	{
		254	ri.pcnt = 1.;
		255	ri.diff = MAXDIF;
		256	}
249	if (send)	257	else if (send)
250	ri.pcnt++;	258	ri.pcnt++;
251		259
252	push_front (ri);	260	push_front (ri);
253		261
254	return send;	262	return send;
…		…
285	hmac_gen (ctx);	293	hmac_gen (ctx);
286		294
287	return !memcmp (hmac, hmac_digest, HMACLENGTH);	295	return !memcmp (hmac, hmac_digest, HMACLENGTH);
288	}	296	}
289		297
290	void vpn_packet::set_hdr (ptype type, unsigned int dst)	298	void vpn_packet::set_hdr (ptype type_, unsigned int dst)
291	{	299	{
292	this->type = type;	300	type = type_;
293		301
294	int src = THISNODE->id;	302	int src = THISNODE->id;
295		303
296	src1 = src;	304	src1 = src;
297	srcdst = ((src >> 8) << 4) \| (dst >> 8);	305	srcdst = ((src >> 8) << 4) \| (dst >> 8);
…		…
546	};	554	};
547		555
548	/////////////////////////////////////////////////////////////////////////////	556	/////////////////////////////////////////////////////////////////////////////
549		557
550	void	558	void
		559	connection::connection_established ()
		560	{
		561	if (ictx && octx)
		562	{
		563	connectmode = conf->connectmode;
		564
		565	rekey.start (NOW + ::conf.rekey);
		566	keepalive.start (NOW + ::conf.keepalive);
		567
		568	// send queued packets
		569	if (ictx && octx)
		570	while (tap_packet *p = queue.get ())
		571	{
		572	send_data_packet (p);
		573	delete p;
		574	}
		575	}
		576	else
		577	{
		578	retry_cnt = 0;
		579	establish_connection.start (NOW + 5);
		580	keepalive.reset ();
		581	rekey.reset ();
		582	}
		583	}
		584
		585	void
551	connection::reset_dstaddr ()	586	connection::reset_si ()
552	{	587	{
553	si.set (conf);
554	}
555
556	void
557	connection::send_ping (const sockinfo &si, u8 pong)
558	{
559	ping_packet *pkt = new ping_packet;
560
561	pkt->setup (conf->id, pong ? ping_packet::PT_PONG : ping_packet::PT_PING);
562	send_vpn_packet (pkt, si, IPTOS_LOWDELAY);
563
564	delete pkt;
565	}
566
567	void
568	connection::send_reset (const sockinfo &si)
569	{
570	if (reset_rate_limiter.can (si) && connectmode != conf_node::C_DISABLED)
571	{
572	config_packet *pkt = new config_packet;
573
574	pkt->setup (vpn_packet::PT_RESET, conf->id);
575	send_vpn_packet (pkt, si, IPTOS_MINCOST);
576
577	delete pkt;
578	}
579	}
580
581	void
582	connection::send_auth_request (const sockinfo &si, bool initiate)
583	{
584	auth_req_packet *pkt = new auth_req_packet (conf->id, initiate, THISNODE->protocols);
585
586	protocol = best_protocol (THISNODE->protocols & conf->protocols);	588	protocol = best_protocol (THISNODE->protocols & conf->protocols);
587		589
588	// mask out protocols we cannot establish	590	// mask out protocols we cannot establish
589	if (!conf->udp_port) protocol &= ~PROT_UDPv4;	591	if (!conf->udp_port) protocol &= ~PROT_UDPv4;
590	if (!conf->tcp_port) protocol &= ~PROT_TCPv4;	592	if (!conf->tcp_port) protocol &= ~PROT_TCPv4;
591		593
592	if (protocol)	594	si.set (conf, protocol);
		595	}
		596
		597	// ensure sockinfo is valid, forward if necessary
		598	const sockinfo &
		599	connection::forward_si (const sockinfo &si) const
		600	{
		601	if (!si.valid ())
		602	{
		603	connection *r = vpn->find_router ();
		604
		605	if (r)
		606	{
		607	slog (L_DEBUG, _("%s: no common protocol, trying indirectly through %s"),
		608	conf->nodename, r->conf->nodename);
		609	return r->si;
		610	}
		611	else
		612	slog (L_DEBUG, _("%s: node unreachable, no common protocol"),
		613	conf->nodename);
593	{	614	}
594	rsachallenge chg;
595		615
596	rsa_cache.gen (pkt->id, chg);	616	return si;
		617	}
597		618
598	if (0 > RSA_public_encrypt (sizeof chg,	619	void
599	(unsigned char )&chg, (unsigned char )&pkt->encr,	620	connection::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)
600	conf->rsa_key, RSA_PKCS1_OAEP_PADDING))	621	{
601	fatal ("RSA_public_encrypt error");	622	if (!vpn->send_vpn_packet (pkt, si, tos))
		623	reset_connection ();
		624	}
602		625
603	slog (L_TRACE, ">>%d PT_AUTH_REQ [%s]", conf->id, (const char *)si);	626	void
		627	connection::send_ping (const sockinfo &si, u8 pong)
		628	{
		629	ping_packet *pkt = new ping_packet;
604		630
605	send_vpn_packet (pkt, si, IPTOS_RELIABILITY); // rsa is very very costly	631	pkt->setup (conf->id, pong ? ping_packet::PT_PONG : ping_packet::PT_PING);
		632	send_vpn_packet (pkt, si, IPTOS_LOWDELAY);
		633
		634	delete pkt;
		635	}
		636
		637	void
		638	connection::send_reset (const sockinfo &si)
		639	{
		640	if (reset_rate_limiter.can (si) && connectmode != conf_node::C_DISABLED)
		641	{
		642	config_packet *pkt = new config_packet;
		643
		644	pkt->setup (vpn_packet::PT_RESET, conf->id);
		645	send_vpn_packet (pkt, si, IPTOS_MINCOST);
606		646
607	delete pkt;	647	delete pkt;
608	}	648	}
609	else	649	}
610	; // silently fail	650
		651	void
		652	connection::send_auth_request (const sockinfo &si, bool initiate)
		653	{
		654	auth_req_packet *pkt = new auth_req_packet (conf->id, initiate, THISNODE->protocols);
		655
		656	rsachallenge chg;
		657
		658	rsa_cache.gen (pkt->id, chg);
		659
		660	if (0 > RSA_public_encrypt (sizeof chg,
		661	(unsigned char )&chg, (unsigned char )&pkt->encr,
		662	conf->rsa_key, RSA_PKCS1_OAEP_PADDING))
		663	fatal ("RSA_public_encrypt error");
		664
		665	slog (L_TRACE, ">>%d PT_AUTH_REQ [%s]", conf->id, (const char *)si);
		666
		667	send_vpn_packet (pkt, si, IPTOS_RELIABILITY \| IPTOS_LOWDELAY); // rsa is very very costly
		668
		669	delete pkt;
611	}	670	}
612		671
613	void	672	void
614	connection::send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg)	673	connection::send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg)
615	{	674	{
…		…
641		700
642	delete r;	701	delete r;
643	}	702	}
644		703
645	void	704	void
646	connection::establish_connection_cb (tstamp &ts)	705	connection::establish_connection_cb (time_watcher &w)
647	{	706	{
648	if (ictx \|\| conf == THISNODE	707	if (ictx \|\| conf == THISNODE
649	\|\| connectmode == conf_node::C_NEVER	708	\|\| connectmode == conf_node::C_NEVER
650	\|\| connectmode == conf_node::C_DISABLED)	709	\|\| connectmode == conf_node::C_DISABLED)
651	ts = TSTAMP_CANCEL;	710	w.at = TSTAMP_CANCEL;
652	else if (ts <= NOW)	711	else if (w.at <= NOW)
653	{	712	{
654	double retry_int = double (retry_cnt & 3 ? (retry_cnt & 3) : 1 << (retry_cnt >> 2)) * 0.6;	713	double retry_int = double (retry_cnt & 3 ? (retry_cnt & 3) : 1 << (retry_cnt >> 2)) * 0.6;
655		714
656	if (retry_int < 3600 * 8)	715	if (retry_int < 3600 * 8)
657	retry_cnt++;	716	retry_cnt++;
658		717
659	ts = NOW + retry_int;	718	w.at = NOW + retry_int;
660		719
661	if (conf->hostname)	720	reset_si ();
		721
		722	if (si.prot && !si.host)
		723	vpn->send_connect_request (conf->id);
		724	else
662	{	725	{
663	reset_dstaddr ();	726	const sockinfo &dsi = forward_si (si);
		727
664	if (si.host && auth_rate_limiter.can (si))	728	if (dsi.valid () && auth_rate_limiter.can (dsi))
665	{	729	{
666	if (retry_cnt < 4)	730	if (retry_cnt < 4)
667	send_auth_request (si, true);	731	send_auth_request (dsi, true);
668	else	732	else
669	send_ping (si, 0);	733	send_ping (dsi, 0);
670	}	734	}
671	}	735	}
672	else
673	vpn->connect_request (conf->id);
674	}	736	}
675	}	737	}
676		738
677	void	739	void
678	connection::reset_connection ()	740	connection::reset_connection ()
…		…
707		769
708	reset_connection ();	770	reset_connection ();
709	}	771	}
710		772
711	void	773	void
712	connection::rekey_cb (tstamp &ts)	774	connection::rekey_cb (time_watcher &w)
713	{	775	{
714	ts = TSTAMP_CANCEL;	776	w.at = TSTAMP_CANCEL;
715		777
716	reset_connection ();	778	reset_connection ();
717	establish_connection ();	779	establish_connection ();
718	}	780	}
719		781
…		…
747	if (!broadcast)//DDDD	809	if (!broadcast)//DDDD
748	queue.put (new tap_packet (*pkt));	810	queue.put (new tap_packet (*pkt));
749		811
750	establish_connection ();	812	establish_connection ();
751	}	813	}
		814	}
		815
		816	void connection::inject_vpn_packet (vpn_packet *pkt, int tos)
		817	{
		818	if (ictx && octx)
		819	send_vpn_packet (pkt, si, tos);
		820	else
		821	establish_connection ();
752	}	822	}
753		823
754	void	824	void
755	connection::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)	825	connection::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)
756	{	826	{
…		…
819	::conf.rsa_key, RSA_PKCS1_OAEP_PADDING))	889	::conf.rsa_key, RSA_PKCS1_OAEP_PADDING))
820	slog (L_ERR, _("%s(%s): challenge illegal or corrupted"),	890	slog (L_ERR, _("%s(%s): challenge illegal or corrupted"),
821	conf->nodename, (const char *)rsi);	891	conf->nodename, (const char *)rsi);
822	else	892	else
823	{	893	{
824	retry_cnt = 0;
825	establish_connection.set (NOW + 8); //? ;)
826	keepalive.reset ();
827	rekey.reset ();
828
829	delete ictx;
830	ictx = 0;
831
832	delete octx;	894	delete octx;
833		895
834	octx = new crypto_ctx (k, 1);	896	octx = new crypto_ctx (k, 1);
835	oseqno = ntohl ((u32 )&k[CHG_SEQNO]) & 0x7fffffff;	897	oseqno = ntohl ((u32 )&k[CHG_SEQNO]) & 0x7fffffff;
836		898
837	conf->protocols = p->protocols;	899	conf->protocols = p->protocols;
		900
838	send_auth_response (rsi, p->id, k);	901	send_auth_response (rsi, p->id, k);
		902
		903	connection_established ();
839		904
840	break;	905	break;
841	}	906	}
842	}	907	}
843		908
…		…
885	delete ictx; ictx = cctx;	950	delete ictx; ictx = cctx;
886		951
887	iseqno.reset (ntohl ((u32 )&chg[CHG_SEQNO]) & 0x7fffffff); // at least 2**31 sequence numbers are valid	952	iseqno.reset (ntohl ((u32 )&chg[CHG_SEQNO]) & 0x7fffffff); // at least 2**31 sequence numbers are valid
888		953
889	si = rsi;	954	si = rsi;
		955	protocol = rsi.prot;
890		956
891	rekey.set (NOW + ::conf.rekey);	957	connection_established ();
892	keepalive.set (NOW + ::conf.keepalive);
893		958
894	// send queued packets
895	while (tap_packet *p = queue.get ())
896	{
897	send_data_packet (p);
898	delete p;
899	}
900
901	connectmode = conf->connectmode;
902
903	slog (L_INFO, _("%s(%s): %s connection established, protocol version %d.%d"),	959	slog (L_INFO, _("%s(%s): connection established, protocol version %d.%d"),
904	conf->nodename, (const char *)rsi,	960	conf->nodename, (const char *)rsi,
905	strprotocol (protocol),
906	p->prot_major, p->prot_minor);	961	p->prot_major, p->prot_minor);
907		962
908	if (::conf.script_node_up)	963	if (::conf.script_node_up)
909	run_script (run_script_cb (this, &connection::script_node_up), false);	964	run_script (run_script_cb (this, &connection::script_node_up), false);
910		965
…		…
933		988
934	if (ictx && octx)	989	if (ictx && octx)
935	{	990	{
936	vpndata_packet p = (vpndata_packet )pkt;	991	vpndata_packet p = (vpndata_packet )pkt;
937		992
938	if (rsi == si)	993	if (!p->hmac_chk (ictx))
		994	slog (L_ERR, _("%s(%s): hmac authentication error, received invalid packet\n"
		995	"could be an attack, or just corruption or an synchronization error"),
		996	conf->nodename, (const char *)rsi);
		997	else
939	{	998	{
940	if (!p->hmac_chk (ictx))
941	slog (L_ERR, _("%s(%s): hmac authentication error, received invalid packet\n"
942	"could be an attack, or just corruption or an synchronization error"),
943	conf->nodename, (const char *)rsi);
944	else	999	u32 seqno;
		1000	tap_packet *d = p->unpack (this, seqno);
		1001
		1002	if (iseqno.recv_ok (seqno))
945	{	1003	{
946	u32 seqno;	1004	vpn->tap->send (d);
947	tap_packet *d = p->unpack (this, seqno);
948		1005
949	if (iseqno.recv_ok (seqno))	1006	if (p->dst () == 0) // re-broadcast
		1007	for (vpn::conns_vector::iterator i = vpn->conns.begin (); i != vpn->conns.end (); ++i)
		1008	{
		1009	connection c = i;
		1010
		1011	if (c->conf != THISNODE && c->conf != conf)
		1012	c->inject_data_packet (d);
		1013	}
		1014
		1015	if (si != rsi)
950	{	1016	{
951	vpn->tap->send (d);	1017	// fast re-sync on conneciton changes, useful especially for tcp/ip
952
953	if (p->dst () == 0) // re-broadcast
954	for (vpn::conns_vector::iterator i = vpn->conns.begin (); i != vpn->conns.end (); ++i)
955	{
956	connection c = i;
957
958	if (c->conf != THISNODE && c->conf != conf)
959	c->inject_data_packet (d);
960	}
961
962	delete d;
963
964	break;	1018	si = rsi;
		1019
		1020	slog (L_INFO, _("%s(%s): socket address changed to %s"),
		1021	conf->nodename, (const char )si, (const char )rsi);
965	}	1022	}
		1023
		1024	delete d;
		1025
		1026	break;
966	}	1027	}
967	}	1028	}
968	else
969	slog (L_ERR, _("received data packet from unknown source %s"), (const char *)rsi);
970	}	1029	}
971		1030
972	send_reset (rsi);	1031	send_reset (rsi);
973	break;	1032	break;
974		1033
…		…
976	if (ictx && octx && rsi == si && pkt->hmac_chk (ictx))	1035	if (ictx && octx && rsi == si && pkt->hmac_chk (ictx))
977	{	1036	{
978	connect_req_packet p = (connect_req_packet ) pkt;	1037	connect_req_packet p = (connect_req_packet ) pkt;
979		1038
980	assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything	1039	assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything
		1040	connection *c = vpn->conns[p->id - 1];
981	conf->protocols = p->protocols;	1041	conf->protocols = p->protocols;
982	connection *c = vpn->conns[p->id - 1];
983		1042
984	slog (L_TRACE, "<<%d PT_CONNECT_REQ(%d) [%d]\n",	1043	slog (L_TRACE, "<<%d PT_CONNECT_REQ(%d) [%d]\n",
985	conf->id, p->id, c->ictx && c->octx);	1044	conf->id, p->id, c->ictx && c->octx);
986		1045
987	if (c->ictx && c->octx)	1046	if (c->ictx && c->octx)
…		…
999	if (ictx && octx && rsi == si && pkt->hmac_chk (ictx))	1058	if (ictx && octx && rsi == si && pkt->hmac_chk (ictx))
1000	{	1059	{
1001	connect_info_packet p = (connect_info_packet ) pkt;	1060	connect_info_packet p = (connect_info_packet ) pkt;
1002		1061
1003	assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything	1062	assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything
1004	conf->protocols = p->protocols;	1063
1005	connection *c = vpn->conns[p->id - 1];	1064	connection *c = vpn->conns[p->id - 1];
		1065
		1066	c->conf->protocols = p->protocols;
		1067	protocol = best_protocol (c->conf->protocols & THISNODE->protocols & p->si.supported_protocols (c->conf));
		1068	p->si.upgrade_protocol (protocol, c->conf);
1006		1069
1007	slog (L_TRACE, "<<%d PT_CONNECT_INFO(%d,%s) (%d)",	1070	slog (L_TRACE, "<<%d PT_CONNECT_INFO(%d,%s) (%d)",
1008	conf->id, p->id, (const char *)p->si, !c->ictx && !c->octx);	1071	conf->id, p->id, (const char *)p->si, !c->ictx && !c->octx);
1009		1072
		1073	const sockinfo &dsi = forward_si (p->si);
		1074
		1075	if (dsi.valid ())
1010	c->send_auth_request (p->si, true);	1076	c->send_auth_request (dsi, true);
1011	}	1077	}
1012		1078
1013	break;	1079	break;
1014		1080
1015	default:	1081	default:
1016	send_reset (rsi);	1082	send_reset (rsi);
1017	break;	1083	break;
1018	}	1084	}
1019	}	1085	}
1020		1086
1021	void connection::keepalive_cb (tstamp &ts)	1087	void connection::keepalive_cb (time_watcher &w)
1022	{	1088	{
1023	if (NOW >= last_activity + ::conf.keepalive + 30)	1089	if (NOW >= last_activity + ::conf.keepalive + 30)
1024	{	1090	{
1025	reset_connection ();	1091	reset_connection ();
1026	establish_connection ();	1092	establish_connection ();
1027	}	1093	}
1028	else if (NOW < last_activity + ::conf.keepalive)	1094	else if (NOW < last_activity + ::conf.keepalive)
1029	ts = last_activity + ::conf.keepalive;	1095	w.at = last_activity + ::conf.keepalive;
1030	else if (conf->connectmode != conf_node::C_ONDEMAND	1096	else if (conf->connectmode != conf_node::C_ONDEMAND
1031	\|\| THISNODE->connectmode != conf_node::C_ONDEMAND)	1097	\|\| THISNODE->connectmode != conf_node::C_ONDEMAND)
1032	{	1098	{
1033	send_ping (si);	1099	send_ping (si);
1034	ts = NOW + 5;	1100	w.at = NOW + 5;
1035	}	1101	}
1036	else	1102	else
1037	reset_connection ();	1103	reset_connection ();
1038	}	1104	}
1039		1105
1040	void connection::connect_request (int id)	1106	void connection::send_connect_request (int id)
1041	{	1107	{
1042	connect_req_packet *p = new connect_req_packet (conf->id, id, conf->protocols);	1108	connect_req_packet *p = new connect_req_packet (conf->id, id, conf->protocols);
1043		1109
1044	slog (L_TRACE, ">>%d PT_CONNECT_REQ(%d)", conf->id, id);	1110	slog (L_TRACE, ">>%d PT_CONNECT_REQ(%d)", conf->id, id);
1045	p->hmac_set (octx);	1111	p->hmac_set (octx);
…		…
1075	putenv ("STATE=down");	1141	putenv ("STATE=down");
1076		1142
1077	return ::conf.script_node_up ? ::conf.script_node_down : "node-down";	1143	return ::conf.script_node_up ? ::conf.script_node_down : "node-down";
1078	}	1144	}
1079		1145
1080	// send a vpn packet out to other hosts
1081	void
1082	connection::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)
1083	{
1084	switch (protocol)
1085	{
1086	case PROT_IPv4:
1087	vpn->send_ipv4_packet (pkt, si, tos);
1088	break;
1089
1090	case PROT_UDPv4:
1091	vpn->send_udpv4_packet (pkt, si, tos);
1092	break;
1093
1094	case PROT_TCPv4:
1095	vpn->send_tcpv4_packet (pkt, si, tos);
1096	break;
1097	}
1098	}
1099
1100	connection::connection(struct vpn *vpn_)	1146	connection::connection(struct vpn *vpn_)
1101	: vpn(vpn_)	1147	: vpn(vpn_)
1102	, rekey (this, &connection::rekey_cb)	1148	, rekey (this, &connection::rekey_cb)
1103	, keepalive (this, &connection::keepalive_cb)	1149	, keepalive (this, &connection::keepalive_cb)
1104	, establish_connection (this, &connection::establish_connection_cb)	1150	, establish_connection (this, &connection::establish_connection_cb)

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Comparing gvpe/src/connection.C (file contents): Revision 1.3 by pcg, Wed Apr 2 05:15:00 2003 UTC vs. Revision 1.10 by pcg, Sun Apr 6 18:12:18 2003 UTC

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Comparing gvpe/src/connection.C (file contents):
Revision 1.3 by pcg, Wed Apr 2 05:15:00 2003 UTC vs.
Revision 1.10 by pcg, Sun Apr 6 18:12:18 2003 UTC