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

Comparing gvpe/src/vpn.C (file contents):
Revision 1.20 by pcg, Thu Oct 16 14:12:00 2003 UTC vs.
Revision 1.62 by root, Sat Dec 17 22:05:34 2011 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 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008,2010,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
6	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	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, but
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	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 along
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <list>	34	#include <list>
23		35
		36	#include <cstdio>
		37	#include <cstring>
24	#include <cstdlib>	38	#include <cstdlib>
25	#include <cstring>
26	#include <cstdio>
27		39
28	#include <sys/types.h>	40	#include <sys/types.h>
29	#include <sys/socket.h>	41	#include <sys/socket.h>
30	#include <sys/wait.h>	42	#include <sys/wait.h>
31	#include <errno.h>	43	#include <errno.h>
44		56
45	vpn network; // THE vpn (bad design...)	57	vpn network; // THE vpn (bad design...)
46		58
47	/////////////////////////////////////////////////////////////////////////////	59	/////////////////////////////////////////////////////////////////////////////
48		60
49	const char *vpn::script_if_up ()	61	static void inline
		62	set_tos (int fd, int &tos_prev, int tos)
		63	{
		64	#if defined(SOL_IP) && defined(IP_TOS)
		65	if (tos_prev == tos)
		66	return;
		67
		68	tos_prev = tos;
		69	setsockopt (fd, SOL_IP, IP_TOS, &tos, sizeof tos);
		70	#endif
		71	}
		72
		73	void
		74	vpn::script_init_env ()
50	{	75	{
51	// the tunnel device mtu should be the physical mtu - overhead	76	// the tunnel device mtu should be the physical mtu - overhead
52	// the tricky part is rounding to the cipher key blocksize	77	// the tricky part is rounding to the cipher key blocksize
53	int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD;	78	int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD;
54	mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion	79	mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion
55	mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round	80	mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round
56	mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again	81	mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again
57		82
58	char *env;	83	char *env;
59	asprintf (&env, "CONFBASE=%s", confbase);	84	asprintf (&env, "CONFBASE=%s", confbase); putenv (env);
60	putenv (env);
61	asprintf (&env, "NODENAME=%s", THISNODE->nodename);
62	putenv (env);
63	asprintf (&env, "NODEID=%d", THISNODE->id);
64	putenv (env);
65	asprintf (&env, "IFNAME=%s", tap->interface ());	85	asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env);
66	putenv (env);	86	asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env);
		87	asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env);
67	asprintf (&env, "MTU=%d", mtu);	88	asprintf (&env, "MTU=%d", mtu); putenv (env);
68	putenv (env);	89	asprintf (&env, "NODES=%d", conns.size ()); putenv (env);
69	asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x",	90	asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env);
70	0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8,
71	THISNODE->id & 0xff);
72	putenv (env);
73		91
		92	conns [THISNODE->id - 1]->script_init_env ("");
		93
		94	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
		95	{
		96	char ext[16];
		97	snprintf (ext, 16, "_%d", (*c)->conf->id);
		98	(*c)->script_init_env (ext);
		99	}
		100	}
		101
		102	inline const char *
		103	vpn::script_if_init ()
		104	{
		105	script_init_env ();
		106
		107	return tap->if_up ();
		108	}
		109
		110	inline const char *
		111	vpn::script_if_up ()
		112	{
		113	script_init_env ();
		114
		115	char *filename;
		116	asprintf (&filename,
		117	"%s/%s",
		118	confbase,
74	return ::conf.script_if_up ? ::conf.script_if_up : "if-up";	119	::conf.script_if_up ? ::conf.script_if_up : "if-up");
		120
		121	return filename;
		122	}
		123
		124	int
		125	vpn::setup_socket (u8 prot, int family, int type, int proto)
		126	{
		127	int fd = socket (family, type, proto);
		128
		129	if (fd < 0)
		130	{
		131	slog (L_ERR, _("unable to create %s socket: %s."), strprotocol (prot), strerror (errno));
		132	return fd;
		133	}
		134
		135	fcntl (fd, F_SETFL, O_NONBLOCK);
		136	fcntl (fd, F_SETFD, FD_CLOEXEC);
		137
		138	#ifdef SO_MARK
		139	if (::conf.nfmark)
		140	if (setsockopt (fd, SOL_SOCKET, SO_MARK, &::conf.nfmark, sizeof ::conf.nfmark))
		141	slog (L_WARN, _("unable to set nfmark on %s socket: %s"), strprotocol (prot), strerror (errno));
		142	#endif
		143
		144	return fd;
75	}	145	}
76		146
77	int	147	int
78	vpn::setup ()	148	vpn::setup ()
79	{	149	{
		150	int success = 0;
		151
		152	#if 1//D2
		153	ipv42_tos = -1;
80	ipv4_fd = -1;	154	ipv42_fd = -1;
81		155
82	if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto)	156	if (THISNODE->protocols & PROT_IPv42 && ::conf.ip_proto)
83	{	157	{
84	ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto);	158	ipv42_fd = setup_socket (PROT_IPv42, PF_INET, SOCK_RAW, ::conf.ip2_proto);
85		159
86	if (ipv4_fd < 0)	160	if (ipv42_fd < 0)
87	return -1;	161	return -1;
88
89	fcntl (ipv4_fd, F_SETFL, O_NONBLOCK);
90		162
91	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)	163	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
92	// this I really consider a linux bug. I am neither connected	164	// this I really consider a linux bug. I am neither connected
93	// nor do I fragment myself. Linux still sets DF and doesn't	165	// nor do I fragment myself. Linux still sets DF and doesn't
94	// fragment for me sometimes.	166	// fragment for me sometimes.
95	{	167	{
96	int oval = IP_PMTUDISC_DONT;	168	int oval = IP_PMTUDISC_DONT;
97	setsockopt (ipv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);	169	setsockopt (ipv42_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
98	}	170	}
99	#endif	171	#endif
100		172
101	sockinfo si (THISNODE, PROT_IPv4);	173	sockinfo si (THISNODE, PROT_IPv42);
102		174
103	if (bind (ipv4_fd, si.sav4 (), si.salenv4 ()))	175	if (bind (ipv42_fd, si.sav4 (), si.salenv4 ()))
104	{	176	{
105	slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno));	177	slog (L_ERR, _("can't bind ipv42 socket on %s: %s, exiting."), (const char *)si, strerror (errno));
106	exit (1);	178	return -1;
107	}	179	}
108		180
109	ipv4_ev_watcher.start (ipv4_fd, POLLIN);	181	ipv42_ev_watcher.start (ipv42_fd, EV_READ);
		182	++success;
110	}	183	}
		184	else
		185	THISNODE->protocols &= ~PROT_IPv42;
		186	#endif
111		187
		188	ipv4_tos = -1;
112	udpv4_fd = -1;	189	ipv4_fd = -1;
113		190
114	if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port)	191	if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto)
115	{	192	{
116	udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);	193	ipv4_fd = setup_socket (PROT_IPv4, PF_INET, SOCK_RAW, ::conf.ip_proto);
117		194
118	if (udpv4_fd < 0)	195	if (ipv4_fd < 0)
119	return -1;	196	return -1;
120
121	fcntl (udpv4_fd, F_SETFL, O_NONBLOCK);
122
123	// standard daemon practise...
124	{
125	int oval = 1;
126	setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
127	}
128		197
129	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)	198	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
130	// this I really consider a linux bug. I am neither connected	199	// this I really consider a linux bug. I am neither connected
131	// nor do I fragment myself. Linux still sets DF and doesn't	200	// nor do I fragment myself. Linux still sets DF and doesn't
132	// fragment for me sometimes.	201	// fragment for me sometimes.
133	{	202	{
134	int oval = IP_PMTUDISC_DONT;	203	int oval = IP_PMTUDISC_DONT;
		204	setsockopt (ipv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
		205	}
		206	#endif
		207
		208	sockinfo si (THISNODE, PROT_IPv4);
		209
		210	if (bind (ipv4_fd, si.sav4 (), si.salenv4 ()))
		211	{
		212	slog (L_ERR, _("can't bind ipv4 socket on %s: %s, exiting."), (const char *)si, strerror (errno));
		213	return -1;
		214	}
		215
		216	ipv4_ev_watcher.start (ipv4_fd, EV_READ);
		217	++success;
		218	}
		219	else
		220	THISNODE->protocols &= ~PROT_IPv4;
		221
		222	udpv4_tos = -1;
		223	udpv4_fd = -1;
		224
		225	if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port)
		226	{
		227	udpv4_fd = setup_socket (PROT_UDPv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP);
		228
		229	if (udpv4_fd < 0)
		230	return -1;
		231
		232	// standard daemon practise...
		233	{
		234	int oval = 1;
		235	setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
		236	}
		237
		238	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
		239	// this I really consider a linux bug. I am neither connected
		240	// nor do I fragment myself. Linux still sets DF and doesn't
		241	// fragment for me sometimes.
		242	{
		243	int oval = IP_PMTUDISC_DONT;
135	setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);	244	setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
136	}	245	}
137	#endif	246	#endif
138		247
139	sockinfo si (THISNODE, PROT_UDPv4);	248	sockinfo si (THISNODE, PROT_UDPv4);
140		249
141	if (bind (udpv4_fd, si.sav4 (), si.salenv4 ()))	250	if (bind (udpv4_fd, si.sav4 (), si.salenv4 ()))
142	{	251	{
143	slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno));	252	slog (L_ERR, _("can't bind udpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
144	exit (1);	253	return -1;
145	}	254	}
146		255
147	udpv4_ev_watcher.start (udpv4_fd, POLLIN);	256	udpv4_ev_watcher.start (udpv4_fd, EV_READ);
		257	++success;
148	}	258	}
		259	else
		260	THISNODE->protocols &= ~PROT_UDPv4;
149		261
		262	icmpv4_tos = -1;
150	icmpv4_fd = -1;	263	icmpv4_fd = -1;
151		264
152	#if ENABLE_ICMP	265	#if ENABLE_ICMP
153	if (THISNODE->protocols & PROT_ICMPv4)	266	if (THISNODE->protocols & PROT_ICMPv4)
154	{	267	{
155	icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP);	268	icmpv4_fd = setup_socket (PROT_ICMPv4, PF_INET, SOCK_RAW, IPPROTO_ICMP);
156		269
157	if (icmpv4_fd < 0)	270	if (icmpv4_fd < 0)
158	return -1;	271	return -1;
159
160	fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK);
161		272
162	#ifdef ICMP_FILTER	273	#ifdef ICMP_FILTER
163	{	274	{
164	icmp_filter oval;	275	icmp_filter oval;
165	oval.data = 0xffffffff;	276	oval.data = 0xffffffff;
…		…
174	// this I really consider a linux bug. I am neither connected	285	// this I really consider a linux bug. I am neither connected
175	// nor do I fragment myself. Linux still sets DF and doesn't	286	// nor do I fragment myself. Linux still sets DF and doesn't
176	// fragment for me sometimes.	287	// fragment for me sometimes.
177	{	288	{
178	int oval = IP_PMTUDISC_DONT;	289	int oval = IP_PMTUDISC_DONT;
179	setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);	290	setsockopt (icmpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
180	}	291	}
181	#endif	292	#endif
182		293
183	sockinfo si (THISNODE, PROT_ICMPv4);	294	sockinfo si (THISNODE, PROT_ICMPv4);
184		295
185	if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ()))	296	if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ()))
186	{	297	{
187	slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno));	298	slog (L_ERR, _("can't bind icmpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
188	exit (1);	299	return -1;
189	}	300	}
190		301
191	icmpv4_ev_watcher.start (icmpv4_fd, POLLIN);	302	icmpv4_ev_watcher.start (icmpv4_fd, EV_READ);
		303	++success;
192	}	304	}
193	#endif	305	#endif
194		306
195	tcpv4_fd = -1;	307	tcpv4_fd = -1;
196		308
197	#if ENABLE_TCP	309	#if ENABLE_TCP
198	if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port)	310	if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port)
199	{	311	{
200	tcpv4_fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);	312	tcpv4_fd = setup_socket (PROT_TCPv4, PF_INET, SOCK_STREAM, IPPROTO_TCP);
201		313
202	if (tcpv4_fd < 0)	314	if (tcpv4_fd < 0)
203	return -1;	315	return -1;
204		316
205	fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK);
206
207	// standard daemon practise...	317	// standard daemon practise...
208	{	318	{
209	int oval = 1;	319	int oval = 1;
210	setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);	320	setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
211	}	321	}
212		322
213	sockinfo si (THISNODE, PROT_TCPv4);	323	sockinfo si (THISNODE, PROT_TCPv4);
214		324
215	if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ()))	325	if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ()))
216	{	326	{
217	slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno));	327	slog (L_ERR, _("can't bind tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
218	exit (1);	328	return -1;
219	}	329	}
220		330
221	if (listen (tcpv4_fd, 5))	331	if (listen (tcpv4_fd, 5))
222	{	332	{
223	slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno));	333	slog (L_ERR, _("can't listen tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
224	exit (1);	334	return -1;
		335	}
		336
		337	tcpv4_ev_watcher.start (tcpv4_fd, EV_READ);
		338	++success;
		339	}
		340	else
		341	THISNODE->protocols &= ~PROT_TCPv4;
		342	#endif
		343
		344	dnsv4_tos = -1;
		345	dnsv4_fd = -1;
		346
		347	#if ENABLE_DNS
		348	if (THISNODE->protocols & PROT_DNSv4)
		349	{
		350	dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4);
		351
		352	dnsv4_fd = setup_socket (PROT_DNSv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP);
		353
		354	if (dnsv4_fd < 0)
		355	return -1;
		356
		357	# if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
		358	// this I really consider a linux bug. I am neither connected
		359	// nor do I fragment myself. Linux still sets DF and doesn't
		360	// fragment for me sometimes.
		361	{
		362	int oval = IP_PMTUDISC_DONT;
		363	setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
225	}	364	}
226
227	tcpv4_ev_watcher.start (tcpv4_fd, POLLIN);
228	}
229	#endif	365	# endif
		366
		367	// standard daemon practise...
		368	{
		369	int oval = 1;
		370	setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
		371	}
		372
		373	sockinfo si (THISNODE->dns_hostname,
		374	THISNODE->dns_hostname ? THISNODE->dns_port : 0,
		375	PROT_DNSv4);
		376
		377	if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ()))
		378	{
		379	slog (L_ERR, _("can't bind dnsv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
		380	return -1;
		381	}
		382
		383	dnsv4_ev_watcher.start (dnsv4_fd, EV_READ);
		384	++success;
		385	}
		386	#endif
		387
		388	/////////////////////////////////////////////////////////////////////////////
		389
		390	if (!success)
		391	{
		392	slog (L_ERR, _("no protocols enabled."));
		393	return -1;
		394	}
		395
		396	reconnect_all ();
		397
		398	/////////////////////////////////////////////////////////////////////////////
230		399
231	tap = new tap_device ();	400	tap = new tap_device ();
232	if (!tap) //D this, of course, never catches	401	if (!tap) //D this, of course, never catches
233	{	402	{
234	slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname);	403	slog (L_ERR, _("cannot create network interface '%s'."), conf.ifname);
235	exit (1);	404	return -1;
236	}	405	}
237		406
238	run_script (run_script_cb (this, &vpn::script_if_up), true);	407	fcntl (tap->fd, F_SETFD, FD_CLOEXEC);
239		408
		409	run_script_cb cb;
		410	cb.set<vpn, &vpn::script_if_init> (this);
		411
		412	if (tap->if_up () &&
		413	!run_script (cb, true))
		414	{
		415	slog (L_ERR, _("interface initialization command '%s' failed."),
		416	tap->if_up ());
		417	return -1;
		418	}
		419
		420	cb.set<vpn, &vpn::script_if_up> (this);
		421	if (!run_script (cb, true))
		422	{
		423	slog (L_ERR, _("if-up command execution failed."));
		424	return -1;
		425	}
		426
240	tap_ev_watcher.start (tap->fd, POLLIN);	427	tap_ev_watcher.start (tap->fd, EV_READ);
241
242	reconnect_all ();
243		428
244	return 0;	429	return 0;
245	}
246
247	// send a vpn packet out to other hosts
248	bool
249	vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)
250	{
251	switch (si.prot)
252	{
253	case PROT_IPv4:
254	return send_ipv4_packet (pkt, si, tos);
255
256	case PROT_UDPv4:
257	return send_udpv4_packet (pkt, si, tos);
258
259	#if ENABLE_TCP
260	case PROT_TCPv4:
261	return send_tcpv4_packet (pkt, si, tos);
262	#endif
263
264	#if ENABLE_ICMP
265	case PROT_ICMPv4:
266	return send_icmpv4_packet (pkt, si, tos);
267	#endif
268
269	default:
270	slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si);
271	return false;
272	}
273	}	430	}
274		431
275	bool	432	bool
276	vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)	433	vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
277	{	434	{
278	#if defined(SOL_IP) && defined(IP_TOS)	435	set_tos (ipv4_fd, ipv4_tos, tos);
279	setsockopt (ipv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);
280	#endif
281	sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());	436	sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
282		437
283	return true;	438	return true;
284	}	439	}
		440
		441	#if 1 //D
		442	bool
		443	vpn::send_ipv42_packet (vpn_packet *pkt, const sockinfo &si, int tos)
		444	{
		445	set_tos (ipv42_fd, ipv42_tos, tos);
		446	sendto (ipv42_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
		447
		448	return true;
		449	}
		450	#endif
285		451
286	static u16	452	static u16
287	ipv4_checksum (u16 *data, unsigned int len)	453	ipv4_checksum (u16 *data, unsigned int len)
288	{	454	{
289	// use 32 bit accumulator and fold back carry bits at the end	455	// use 32 bit accumulator and fold back carry bits at the end
…		…
308		474
309	#if ENABLE_ICMP	475	#if ENABLE_ICMP
310	bool	476	bool
311	vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)	477	vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
312	{	478	{
313	#if defined(SOL_IP) && defined(IP_TOS)
314	setsockopt (icmpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);
315	#endif
316
317	pkt->unshift_hdr (4);	479	pkt->unshift_hdr (4);
318		480
319	icmp_header hdr = (icmp_header )&((*pkt)[0]);	481	icmp_header hdr = (icmp_header )&((*pkt)[0]);
320	hdr->type = ::conf.icmp_type;	482	hdr->type = ::conf.icmp_type;
321	hdr->code = 255;	483	hdr->code = 255;
322	hdr->checksum = 0;	484	hdr->checksum = 0;
323	hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len);	485	hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len);
324		486
		487	set_tos (icmpv4_fd, icmpv4_tos, tos);
325	sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());	488	sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
326		489
327	return true;	490	return true;
328	}	491	}
329	#endif	492	#endif
330		493
331	bool	494	bool
332	vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)	495	vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
333	{	496	{
334	#if defined(SOL_IP) && defined(IP_TOS)	497	set_tos (udpv4_fd, udpv4_tos, tos);
335	setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);
336	#endif
337	sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());	498	sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
338		499
339	return true;	500	return true;
340	}	501	}
341		502
…		…
352	{	513	{
353	// broadcast, this is ugly, but due to the security policy	514	// broadcast, this is ugly, but due to the security policy
354	// we have to connect to all hosts...	515	// we have to connect to all hosts...
355	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)	516	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
356	if ((*c)->conf != THISNODE)	517	if ((*c)->conf != THISNODE)
357	(*c)->inject_data_packet (pkt, true);	518	(*c)->inject_data_packet (pkt);
358	}	519	}
359	}	520	}
360		521
361	void	522	void
362	vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)	523	vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)
363	{	524	{
364	unsigned int src = pkt->src ();	525	unsigned int src = pkt->src ();
365	unsigned int dst = pkt->dst ();	526	unsigned int dst = pkt->dst ();
366		527
367	slog (L_NOISE, _("<<?/%s received possible vpn packet type %d from %d to %d, length %d"),	528	slog (L_NOISE, _("<<?/%s received possible vpn packet type %d from %d to %d, length %d."),
368	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst (), pkt->len);	529	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst (), pkt->len);
369		530
370	if (src == 0 \|\| src > conns.size ()	531	if (src == 0 \|\| src > conns.size ()
371	\|\| dst > conns.size ()	532	\|\| dst > conns.size ()
372	\|\| pkt->typ () >= vpn_packet::PT_MAX)	533	\|\| pkt->typ () >= vpn_packet::PT_MAX)
373	slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)"),	534	slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)."),
374	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ());	535	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ());
375	else if (dst > conns.size ())
376	slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)"),
377	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ());
378	else	536	else
379	{	537	{
380	connection *c = conns[src - 1];	538	connection *c = conns[src - 1];
381		539
382	if (dst == 0)	540	if (dst == 0)
383	slog (L_WARN, _("%s(%s): received broadcast (protocol violation)"),	541	slog (L_WARN, _("%s(%s): received broadcast (protocol violation)."),
384	c->conf->nodename, (const char *)rsi);	542	c->conf->nodename, (const char *)rsi);
385	else if (dst != THISNODE->id)	543	else if (dst != THISNODE->id)
386	{	544	{
387	if (THISNODE->routerprio)	545	if (THISNODE->routerprio)
388	// the tos setting gets lost here. who cares.	546	// the tos setting gets lost here. who cares.
389	conns[dst - 1]->inject_vpn_packet (pkt);	547	conns[dst - 1]->inject_vpn_packet (pkt);
390	else	548	else
391	slog (L_WARN,	549	slog (L_WARN,
392	_("%s(%s): forwarding request (=> %s), but we are no router"),	550	_("%s(%s): request to forward packet to %s, but we are no router (config mismatch?)."),
393	c->conf->nodename, (const char *)rsi,	551	c->conf->nodename, (const char *)rsi,
394	conns[dst - 1]->conf->nodename);	552	conns[dst - 1]->conf->nodename);
395	}	553	}
396	else	554	else
397	c->recv_vpn_packet (pkt, rsi);	555	c->recv_vpn_packet (pkt, rsi);
398	}	556	}
399	}	557	}
400		558
401	void	559	bool
		560	vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)
		561	{
		562	switch (si.prot)
		563	{
		564	#if 1//D2
		565	case PROT_IPv42:
		566	return send_ipv42_packet (pkt, si, tos);
		567	#endif
		568
		569	case PROT_IPv4:
		570	return send_ipv4_packet (pkt, si, tos);
		571
		572	case PROT_UDPv4:
		573	return send_udpv4_packet (pkt, si, tos);
		574
		575	#if ENABLE_TCP
		576	case PROT_TCPv4:
		577	return send_tcpv4_packet (pkt, si, tos);
		578	#endif
		579	#if ENABLE_ICMP
		580	case PROT_ICMPv4:
		581	return send_icmpv4_packet (pkt, si, tos);
		582	#endif
		583	#if ENABLE_DNS
		584	case PROT_DNSv4:
		585	return send_dnsv4_packet (pkt, si, tos);
		586	#endif
		587	default:
		588	slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol."), (const char *)si);
		589	}
		590
		591	return false;
		592	}
		593
		594	#if 1//D2
		595	inline void
402	vpn::ipv4_ev (io_watcher &w, short revents)	596	vpn::ipv42_ev (ev::io &w, int revents)
403	{	597	{
404	if (revents & (POLLIN \| POLLERR))	598	if (revents & EV_READ)
405	{	599	{
406	vpn_packet *pkt = new vpn_packet;	600	vpn_packet *pkt = new vpn_packet;
407	struct sockaddr_in sa;	601	struct sockaddr_in sa;
408	socklen_t sa_len = sizeof (sa);	602	socklen_t sa_len = sizeof (sa);
409	int len;	603	int len;
410		604
411	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);	605	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);
412		606
		607	sockinfo si(sa, PROT_IPv42);
		608
		609	if (len > 0)
		610	{
		611	pkt->len = len;
		612
		613	// raw sockets deliver the ipv4 header, but don't expect it on sends
		614	pkt->skip_hdr (pkt->ipv4_hdr_len ());
		615
		616	recv_vpn_packet (pkt, si);
		617	}
		618	else
		619	{
		620	// probably ECONNRESET or somesuch
		621	slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno));
		622	}
		623
		624	delete pkt;
		625	}
		626	else
		627	{
		628	slog (L_ERR,
		629	_("FATAL: unknown revents %08x in socket, exiting.\n"),
		630	revents);
		631	exit (EXIT_FAILURE);
		632	}
		633	}
		634	#endif
		635
		636	inline void
		637	vpn::ipv4_ev (ev::io &w, int revents)
		638	{
		639	if (revents & EV_READ)
		640	{
		641	vpn_packet *pkt = new vpn_packet;
		642	struct sockaddr_in sa;
		643	socklen_t sa_len = sizeof (sa);
		644	int len;
		645
		646	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);
		647
413	sockinfo si(sa, PROT_IPv4);	648	sockinfo si(sa, PROT_IPv4);
414		649
415	if (len > 0)	650	if (len > 0)
416	{	651	{
417	pkt->len = len;	652	pkt->len = len;
418		653
419	// raw sockets deliver the ipv4, but don't expect it on sends	654	// raw sockets deliver the ipv4 header, but don't expect it on sends
420	// this is slow, but...	655	pkt->skip_hdr (pkt->ipv4_hdr_len ());
421	pkt->skip_hdr (IP_OVERHEAD);
422		656
423	recv_vpn_packet (pkt, si);	657	recv_vpn_packet (pkt, si);
424	}	658	}
425	else	659	else
426	{	660	{
427	// probably ECONNRESET or somesuch	661	// probably ECONNRESET or somesuch
428	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));	662	slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno));
429	}	663	}
430		664
431	delete pkt;	665	delete pkt;
432	}	666	}
433	else if (revents & POLLHUP)
434	{
435	// this cannot ;) happen on udp sockets
436	slog (L_ERR, _("FATAL: POLLHUP on ipv4 fd, terminating."));
437	exit (1);
438	}
439	else	667	else
440	{	668	{
441	slog (L_ERR,	669	slog (L_ERR,
442	_("FATAL: unknown revents %08x in socket, terminating\n"),	670	_("FATAL: unknown revents %08x in socket, exiting.\n"),
443	revents);	671	revents);
444	exit (1);	672	exit (EXIT_FAILURE);
445	}	673	}
446	}	674	}
447		675
448	#if ENABLE_ICMP	676	#if ENABLE_ICMP
449	void	677	inline void
450	vpn::icmpv4_ev (io_watcher &w, short revents)	678	vpn::icmpv4_ev (ev::io &w, int revents)
451	{	679	{
452	if (revents & (POLLIN \| POLLERR))	680	if (revents & EV_READ)
453	{	681	{
454	vpn_packet *pkt = new vpn_packet;	682	vpn_packet *pkt = new vpn_packet;
455	struct sockaddr_in sa;	683	struct sockaddr_in sa;
456	socklen_t sa_len = sizeof (sa);	684	socklen_t sa_len = sizeof (sa);
457	int len;	685	int len;
…		…
469	if (hdr->type == ::conf.icmp_type	697	if (hdr->type == ::conf.icmp_type
470	&& hdr->code == 255)	698	&& hdr->code == 255)
471	{	699	{
472	// raw sockets deliver the ipv4, but don't expect it on sends	700	// raw sockets deliver the ipv4, but don't expect it on sends
473	// this is slow, but...	701	// this is slow, but...
474	pkt->skip_hdr (ICMP_OVERHEAD);	702	pkt->skip_hdr (pkt->ipv4_hdr_len () + (ICMP_OVERHEAD - IP_OVERHEAD));
475		703
476	recv_vpn_packet (pkt, si);	704	recv_vpn_packet (pkt, si);
477	}	705	}
478	}	706	}
479	else	707	else
480	{	708	{
481	// probably ECONNRESET or somesuch	709	// probably ECONNRESET or somesuch
482	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));	710	slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno));
483	}	711	}
484		712
485	delete pkt;	713	delete pkt;
486	}	714	}
487	else if (revents & POLLHUP)
488	{
489	// this cannot ;) happen on udp sockets
490	slog (L_ERR, _("FATAL: POLLHUP on icmpv4 fd, terminating."));
491	exit (1);
492	}
493	else	715	else
494	{	716	{
495	slog (L_ERR,	717	slog (L_ERR,
496	_("FATAL: unknown revents %08x in socket, terminating\n"),	718	_("FATAL: unknown revents %08x in socket, exiting.\n"),
497	revents);	719	revents);
498	exit (1);	720	exit (EXIT_FAILURE);
499	}	721	}
500	}	722	}
501	#endif	723	#endif
502		724
503	void	725	inline void
504	vpn::udpv4_ev (io_watcher &w, short revents)	726	vpn::udpv4_ev (ev::io &w, int revents)
505	{	727	{
506	if (revents & (POLLIN \| POLLERR))	728	if (revents & EV_READ)
507	{	729	{
508	vpn_packet *pkt = new vpn_packet;	730	vpn_packet *pkt = new vpn_packet;
509	struct sockaddr_in sa;	731	struct sockaddr_in sa;
510	socklen_t sa_len = sizeof (sa);	732	socklen_t sa_len = sizeof (sa);
511	int len;	733	int len;
…		…
521	recv_vpn_packet (pkt, si);	743	recv_vpn_packet (pkt, si);
522	}	744	}
523	else	745	else
524	{	746	{
525	// probably ECONNRESET or somesuch	747	// probably ECONNRESET or somesuch
526	slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno));	748	slog (L_DEBUG, _("%s: fd %d, %s."), (const char *)si, w.fd, strerror (errno));
527	}	749	}
528		750
529	delete pkt;	751	delete pkt;
530	}	752	}
531	else if (revents & POLLHUP)
532	{
533	// this cannot ;) happen on udp sockets
534	slog (L_ERR, _("FATAL: POLLHUP on udp v4 fd, terminating."));
535	exit (1);
536	}
537	else	753	else
538	{	754	{
539	slog (L_ERR,	755	slog (L_ERR,
540	_("FATAL: unknown revents %08x in socket, terminating\n"),	756	_("FATAL: unknown revents %08x in socket, exiting.\n"),
541	revents);	757	revents);
542	exit (1);	758	exit (EXIT_FAILURE);
543	}	759	}
544	}	760	}
545		761
546	void	762	inline void
547	vpn::tap_ev (io_watcher &w, short revents)	763	vpn::tap_ev (ev::io &w, int revents)
548	{	764	{
549	if (revents & POLLIN)	765	if (revents & EV_READ)
550	{	766	{
551	/* process data */	767	/* process data */
552	tap_packet *pkt;	768	tap_packet *pkt;
553		769
554	pkt = tap->recv ();	770	pkt = tap->recv ();
…		…
561	int dst = mac2id (pkt->dst);	777	int dst = mac2id (pkt->dst);
562	int src = mac2id (pkt->src);	778	int src = mac2id (pkt->src);
563		779
564	if (src != THISNODE->id)	780	if (src != THISNODE->id)
565	{	781	{
566	slog (L_ERR, _("FATAL: tap packet not originating on current node received, exiting."));	782	slog (L_ERR, _("FATAL: tap packet not originating on current node received (if-up script not working properly?), exiting."));
567	exit (1);	783	exit (EXIT_FAILURE);
568	}	784	}
569		785
570	if (dst == THISNODE->id)	786	if (dst == THISNODE->id)
571	{	787	{
572	slog (L_ERR, _("FATAL: tap packet destined for current node received, exiting."));	788	slog (L_ERR, _("FATAL: tap packet destined for current node received, exiting."));
573	exit (1);	789	exit (EXIT_FAILURE);
574	}	790	}
575		791
576	if (dst > conns.size ())	792	if (dst > conns.size ())
577	slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst);	793	slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst);
578	else	794	else
579	inject_data_packet (pkt, dst);	795	inject_data_packet (pkt, dst);
580	}	796	}
581		797
582	delete pkt;	798	delete pkt;
583	}	799	}
584	else if (revents & (POLLHUP \| POLLERR))
585	{
586	slog (L_ERR, _("FATAL: POLLHUP or POLLERR on network device fd, terminating."));
587	exit (1);
588	}
589	else	800	else
590	abort ();	801	abort ();
591	}	802	}
592		803
593	void	804	inline void
594	vpn::event_cb (time_watcher &w)	805	vpn::event_cb (ev::timer &w, int)
595	{	806	{
596	if (events)	807	if (events)
597	{	808	{
598	if (events & EVENT_SHUTDOWN)	809	if (events & EVENT_SHUTDOWN)
599	{	810	{
600	slog (L_INFO, _("preparing shutdown..."));	811	slog (L_INFO, _("preparing shutdown..."));
601		812
602	shutdown_all ();	813	shutdown_all ();
603
604	remove_pid (pidfilename);	814	remove_pid (conf.pidfilename);
605
606	slog (L_INFO, _("terminating"));	815	slog (L_INFO, _("exiting."));
607		816	exit (EXIT_SUCCESS);
608	exit (0);
609	}	817	}
610		818
611	if (events & EVENT_RECONNECT)	819	if (events & EVENT_RECONNECT)
612	{	820	{
613	slog (L_INFO, _("forced reconnect"));	821	slog (L_INFO, _("forced reconnect."));
614		822
615	reconnect_all ();	823	reconnect_all ();
616	}	824	}
617		825
618	events = 0;	826	events = 0;
619	}	827	}
620
621	w.at = TSTAMP_CANCEL;
622	}	828	}
623		829
624	void	830	void
625	vpn::shutdown_all ()	831	vpn::shutdown_all ()
626	{	832	{
…		…
636		842
637	conns.clear ();	843	conns.clear ();
638		844
639	connection_init ();	845	connection_init ();
640		846
641	for (configuration::node_vector::iterator i = conf.nodes.begin ();	847	for (configuration::node_vector::iterator i = conf.nodes.begin (); i != conf.nodes.end (); ++i)
642	i != conf.nodes.end (); ++i)	848	conns.push_back (new connection (this, *i));
643	{
644	connection *conn = new connection (this);
645		849
646	conn->conf = *i;	850	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
647	conns.push_back (conn);
648
649	conn->establish_connection ();	851	(*c)->establish_connection ();
650	}
651	}	852	}
652		853
653	connection *vpn::find_router ()	854	bool
		855	vpn::can_direct (conf_node src, conf_node dst) const
654	{	856	{
655	u32 prio = 1;	857	return src != dst
		858	&& src->may_direct (dst)
		859	&& dst->may_direct (src)
		860	&& (((src->protocols & dst->protocols) && src->connectmode == conf_node::C_ALWAYS)
		861	\|\| (src->protocols & dst->connectable_protocols ()));
		862	}
		863
		864	// only works for indirect and routed connections: find a router
		865	// from THISNODE to dst
		866	connection *
		867	vpn::find_router_for (const connection *dst)
		868	{
656	connection *router = 0;	869	connection *router = 0;
657		870
		871	// first try to find a router with a direct connection, route there
		872	// regardless of any other considerations.
		873	{
		874	u32 prio = 1;
		875
		876	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)
		877	{
		878	connection c = i;
		879
		880	if (c->conf->routerprio > prio
		881	&& c->conf != THISNODE
		882	&& can_direct (c->conf, dst->conf)
		883	&& c->ictx && c->octx)
		884	{
		885	prio = c->conf->routerprio;
		886	router = c;
		887	}
		888	}
		889	}
		890
		891	if (router)
		892	return router;
		893
		894	// second try find the router with the highest priority, higher than ours
		895	{
		896	u32 prio = THISNODE->routerprio ? THISNODE->routerprio : 1;
		897
		898	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)
		899	{
		900	connection c = i;
		901
		902	if (c->conf->routerprio > prio
		903	&& c != dst
		904	&& c->conf != THISNODE
		905	&& c->ictx && c->octx)
		906	{
		907	prio = c->conf->routerprio;
		908	router = c;
		909	}
		910	}
		911	}
		912
		913	return router;
		914	}
		915
		916	void
		917	vpn::connection_established (connection *c)
		918	{
658	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)	919	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)
659	{	920	{
660	connection c = i;	921	connection o = i;
661		922
662	if (c->conf->routerprio > prio	923	if (!o->is_direct
663	&& c->connectmode == conf_node::C_ALWAYS // so we don't drop the connection if in use	924	&& o->si.valid ()
664	&& c->ictx && c->octx	925	&& c->si != o->si
665	&& c->conf != THISNODE) // redundant, since ictx==octx==0 always on thisnode	926	&& c == find_router_for (o))
666	{
667	prio = c->conf->routerprio;
668	router = c;
669	}	927	{
		928	slog (L_DEBUG, _("%s: can now route packets via %s, re-keying connection."),
		929	o->conf->nodename, c->conf->nodename);
		930	o->rekey ();
		931	}
670	}	932	}
671
672	return router;
673	}	933	}
674		934
		935	void
675	void vpn::send_connect_request (int id)	936	vpn::send_connect_request (connection *c)
676	{	937	{
677	connection *c = find_router ();	938	connection *r = find_router_for (c);
678		939
679	if (c)	940	if (r)
		941	{
		942	slog (L_TRACE, _("%s: no address known, sending mediated connection request via %s."),
		943	c->conf->nodename, r->conf->nodename);
680	c->send_connect_request (id);	944	r->send_connect_request (c->conf->id);
		945	}
681	else	946	else
682	// no router found, aggressively connect to all routers	947	slog (L_DEBUG, _("%s: no way to connect and no router found: unable to connect at this time."),
683	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)	948	c->conf->nodename);
684	if ((i)->conf->routerprio && (i)->conf != THISNODE)
685	(*i)->establish_connection ();
686	}	949	}
687		950
688	void	951	void
689	connection::dump_status ()	952	connection::dump_status ()
690	{	953	{
691	slog (L_NOTICE, _("node %s (id %d)"), conf->nodename, conf->id);	954	slog (L_NOTICE, _("node %s (id %d)"), conf->nodename, conf->id);
692	slog (L_NOTICE, _(" connectmode %d (%d) / sockaddr %s / minor %d"),	955	slog (L_NOTICE, _(" connectmode %d (%d) / sockaddr %s / minor %d"),
693	connectmode, conf->connectmode, (const char *)si, (int)prot_minor);	956	connectmode, conf->connectmode, (const char *)si, (int)prot_minor);
694	slog (L_NOTICE, _(" ictx/octx %08lx/%08lx / oseqno %d / retry_cnt %d"),	957	slog (L_NOTICE, _(" ictx/octx %08lx/%08lx / oseqno %d / retry_cnt %d"),
695	(long)ictx, (long)octx, (int)oseqno, (int)retry_cnt);	958	(long)ictx, (long)octx, (int)oseqno, (int)retry_cnt);
696	slog (L_NOTICE, _(" establish_conn %ld / rekey %ld / keepalive %ld"),
697	(long)(establish_connection.at), (long)(rekey.at), (long)(keepalive.at));
698	}	959	}
699		960
700	void	961	void
701	vpn::dump_status ()	962	vpn::dump_status ()
702	{	963	{
703	slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)NOW);	964	slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)ev_now ());
704		965
705	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)	966	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
706	(*c)->dump_status ();	967	(*c)->dump_status ();
707		968
708	slog (L_NOTICE, _("END status dump"));	969	slog (L_NOTICE, _("END status dump"));
709	}	970	}
710		971
711	vpn::vpn (void)	972	vpn::vpn (void)
		973	{
712	: event (this, &vpn::event_cb)	974	event .set<vpn, &vpn::event_cb > (this);
713	, udpv4_ev_watcher (this, &vpn::udpv4_ev)	975	udpv4_ev_watcher .set<vpn, &vpn::udpv4_ev > (this);
714	, ipv4_ev_watcher (this, &vpn::ipv4_ev)	976	ipv4_ev_watcher .set<vpn, &vpn::ipv4_ev > (this);
		977	#if 1//D2
		978	ipv42_ev_watcher .set<vpn, &vpn::ipv42_ev > (this);
		979	#endif
715	#if ENABLE_TCP	980	#if ENABLE_TCP
716	, tcpv4_ev_watcher (this, &vpn::tcpv4_ev)	981	tcpv4_ev_watcher .set<vpn, &vpn::tcpv4_ev > (this);
717	#endif	982	#endif
718	#if ENABLE_ICMP	983	#if ENABLE_ICMP
719	, icmpv4_ev_watcher(this, &vpn::icmpv4_ev)	984	icmpv4_ev_watcher.set<vpn, &vpn::icmpv4_ev> (this);
720	#endif	985	#endif
721	, tap_ev_watcher (this, &vpn::tap_ev)	986	#if ENABLE_DNS
722	{	987	dnsv4_ev_watcher .set<vpn, &vpn::dnsv4_ev > (this);
		988	#endif
		989	tap_ev_watcher .set<vpn, &vpn::tap_ev > (this);
723	}	990	}
724		991
725	vpn::~vpn ()	992	vpn::~vpn ()
726	{	993	{
727	}	994	}

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Comparing gvpe/src/vpn.C (file contents): Revision 1.20 by pcg, Thu Oct 16 14:12:00 2003 UTC vs. Revision 1.62 by root, Sat Dec 17 22:05:34 2011 UTC

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Comparing gvpe/src/vpn.C (file contents):
Revision 1.20 by pcg, Thu Oct 16 14:12:00 2003 UTC vs.
Revision 1.62 by root, Sat Dec 17 22:05:34 2011 UTC