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

Comparing gvpe/src/vpn.C (file contents):
Revision 1.6 by pcg, Sun Apr 6 04:17:36 2003 UTC vs.
Revision 1.65 by root, Tue Jul 16 16:44:37 2013 UTC

…		…
1	/*	1	/*
2	vpn.C -- handle the protocol, encryption, handshaking etc.	2	vpn.C -- handle the protocol, encryption, handshaking etc.
		3	Copyright (C) 2003-2008,2010,2011,2013 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 it
5	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
6	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
7	(at your option) any later version.	10	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, but
10	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	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 GNU General
12	GNU General Public License for more details.	15	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 along
15	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
16	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.
17	*/	30	*/
18		31
19	#include "config.h"	32	#include "config.h"
20		33
21	#include <list>	34	#include <list>
22		35
		36	#include <cstdio>
		37	#include <cstring>
23	#include <cstdlib>	38	#include <cstdlib>
24	#include <cstring>
25	#include <cstdio>
26		39
27	#include <sys/types.h>	40	#include <sys/types.h>
28	#include <sys/socket.h>	41	#include <sys/socket.h>
29	#include <sys/poll.h>
30	#include <sys/wait.h>	42	#include <sys/wait.h>
31	#include <netinet/in.h>	43	#include <sys/stat.h>
32	#include <arpa/inet.h>
33	#include <errno.h>	44	#include <errno.h>
34	#include <time.h>	45	#include <time.h>
35	#include <unistd.h>	46	#include <unistd.h>
		47	#include <fcntl.h>
		48	#include <sys/socket.h>
		49
		50	#include "netcompat.h"
36		51
37	#include "pidfile.h"	52	#include "pidfile.h"
38		53
39	#include "connection.h"	54	#include "connection.h"
40	#include "util.h"	55	#include "util.h"
41	#include "vpn.h"	56	#include "vpn.h"
42		57
		58	using namespace std;
		59
		60	vpn network; // THE vpn (bad design...)
		61
43	/////////////////////////////////////////////////////////////////////////////	62	/////////////////////////////////////////////////////////////////////////////
44		63
45	const char *vpn::script_if_up ()	64	static void inline
		65	set_tos (int fd, int &tos_prev, int tos)
		66	{
		67	#if defined(SOL_IP) && defined(IP_TOS)
		68	if (tos_prev == tos)
		69	return;
		70
		71	tos_prev = tos;
		72	setsockopt (fd, SOL_IP, IP_TOS, &tos, sizeof tos);
		73	#endif
		74	}
		75
		76	void
		77	vpn::script_init_env ()
46	{	78	{
47	// the tunnel device mtu should be the physical mtu - overhead	79	// the tunnel device mtu should be the physical mtu - overhead
48	// the tricky part is rounding to the cipher key blocksize	80	// the tricky part is rounding to the cipher key blocksize
49	int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD;	81	int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD;
50	mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion	82	mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion
51	mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round	83	mtu -= mtu % BLOCK_SIZE (CIPHER); // round
52	mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again	84	mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again
53		85
54	char *env;	86	char *env;
55	asprintf (&env, "CONFBASE=%s", confbase);	87	asprintf (&env, "CONFBASE=%s", confbase); putenv (env);
56	putenv (env);
57	asprintf (&env, "NODENAME=%s", THISNODE->nodename);
58	putenv (env);
59	asprintf (&env, "NODEID=%d", THISNODE->id);
60	putenv (env);
61	asprintf (&env, "IFNAME=%s", tap->interface ());	88	asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env);
62	putenv (env);	89	asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env);
		90	asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env);
63	asprintf (&env, "MTU=%d", mtu);	91	asprintf (&env, "MTU=%d", mtu); putenv (env);
64	putenv (env);	92	asprintf (&env, "NODES=%d", conns.size ()); putenv (env);
65	asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x",	93	asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env);
66	0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8,
67	THISNODE->id & 0xff);
68	putenv (env);
69		94
		95	conns [THISNODE->id - 1]->script_init_env ("");
		96
		97	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
		98	{
		99	char ext[16];
		100	snprintf (ext, 16, "_%d", (*c)->conf->id);
		101	(*c)->script_init_env (ext);
		102	}
		103	}
		104
		105	inline const char *
		106	vpn::script_if_init ()
		107	{
		108	script_init_env ();
		109
		110	return tap->if_up ();
		111	}
		112
		113	inline const char *
		114	vpn::script_if_up ()
		115	{
		116	script_init_env ();
		117
		118	char *filename;
		119	asprintf (&filename,
		120	"%s/%s",
		121	confbase,
70	return ::conf.script_if_up ? ::conf.script_if_up : "if-up";	122	::conf.script_if_up ? ::conf.script_if_up : "if-up");
		123
		124	return filename;
		125	}
		126
		127	int
		128	vpn::setup_socket (u8 prot, int family, int type, int proto)
		129	{
		130	int fd = socket (family, type, proto);
		131
		132	if (fd < 0)
		133	{
		134	slog (L_ERR, _("unable to create %s socket: %s."), strprotocol (prot), strerror (errno));
		135	return fd;
		136	}
		137
		138	fcntl (fd, F_SETFL, O_NONBLOCK);
		139	fcntl (fd, F_SETFD, FD_CLOEXEC);
		140
		141	#ifdef SO_MARK
		142	if (::conf.nfmark)
		143	if (setsockopt (fd, SOL_SOCKET, SO_MARK, &::conf.nfmark, sizeof ::conf.nfmark))
		144	slog (L_WARN, _("unable to set nfmark on %s socket: %s"), strprotocol (prot), strerror (errno));
		145	#endif
		146
		147	return fd;
71	}	148	}
72		149
73	int	150	int
74	vpn::setup ()	151	vpn::setup ()
75	{	152	{
		153	int success = 0;
		154
		155	ipv4_tos = -1;
76	udpv4_fd = -1;	156	ipv4_fd = -1;
77		157
78	if (THISNODE->protocols & PROT_UDPv4)	158	if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto)
79	{	159	{
80	udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);	160	ipv4_fd = setup_socket (PROT_IPv4, PF_INET, SOCK_RAW, ::conf.ip_proto);
81		161
82	if (udpv4_fd < 0)	162	if (ipv4_fd < 0)
83	return -1;	163	return -1;
84		164
85	// standard daemon practise...	165	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
86	{
87	int oval = 1;
88	setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
89	}
90
91	sockinfo si (THISNODE, PROT_UDPv4);
92
93	if (bind (udpv4_fd, si.sav4 (), si.salenv4 ()))
94	{
95	slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno));
96	exit (1);
97	}
98
99	#ifdef IP_MTU_DISCOVER
100	// this I really consider a linux bug. I am neither connected	166	// this I really consider a linux bug. I am neither connected
101	// nor do I fragment myself. Linux still sets DF and doesn't	167	// nor do I fragment myself. Linux still sets DF and doesn't
102	// fragment for me sometimes.	168	// fragment for me sometimes.
103	{	169	{
104	int oval = IP_PMTUDISC_DONT;	170	int oval = IP_PMTUDISC_DONT;
105	setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);	171	setsockopt (ipv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
		172	}
		173	#endif
		174
		175	sockinfo si (THISNODE, PROT_IPv4);
		176
		177	if (bind (ipv4_fd, si.sav4 (), si.salenv4 ()))
		178	{
		179	slog (L_ERR, _("can't bind ipv4 socket on %s: %s, exiting."), (const char *)si, strerror (errno));
		180	return -1;
106	}	181	}
107	#endif
108		182
109	udpv4_ev_watcher.start (udpv4_fd, POLLIN);	183	ipv4_ev_watcher.start (ipv4_fd, EV_READ);
		184	++success;
110	}	185	}
		186	else
		187	THISNODE->protocols &= ~PROT_IPv4;
111		188
		189	udpv4_tos = -1;
112	ipv4_fd = -1;	190	udpv4_fd = -1;
113	if (THISNODE->protocols & PROT_IPv4)
114	{
115	ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto);
116		191
		192	if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port)
		193	{
		194	udpv4_fd = setup_socket (PROT_UDPv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP);
		195
117	if (ipv4_fd < 0)	196	if (udpv4_fd < 0)
118	return -1;	197	return -1;
119		198
120	sockinfo si (THISNODE, PROT_IPv4);	199	// standard daemon practise...
121
122	if (bind (ipv4_fd, si.sav4 (), si.salenv4 ()))
123	{	200	{
124	slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno));	201	int oval = 1;
125	exit (1);	202	setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
126	}	203	}
127		204
128	#ifdef IP_MTU_DISCOVER	205	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
129	// this I really consider a linux bug. I am neither connected	206	// this I really consider a linux bug. I am neither connected
130	// nor do I fragment myself. Linux still sets DF and doesn't	207	// nor do I fragment myself. Linux still sets DF and doesn't
131	// fragment for me sometimes.	208	// fragment for me sometimes.
132	{	209	{
133	int oval = IP_PMTUDISC_DONT;	210	int oval = IP_PMTUDISC_DONT;
		211	setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
		212	}
		213	#endif
		214
		215	sockinfo si (THISNODE, PROT_UDPv4);
		216
		217	if (bind (udpv4_fd, si.sav4 (), si.salenv4 ()))
		218	{
		219	slog (L_ERR, _("can't bind udpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
		220	return -1;
		221	}
		222
		223	udpv4_ev_watcher.start (udpv4_fd, EV_READ);
		224	++success;
		225	}
		226	else
		227	THISNODE->protocols &= ~PROT_UDPv4;
		228
		229	icmpv4_tos = -1;
		230	icmpv4_fd = -1;
		231
		232	#if ENABLE_ICMP
		233	if (THISNODE->protocols & PROT_ICMPv4)
		234	{
		235	icmpv4_fd = setup_socket (PROT_ICMPv4, PF_INET, SOCK_RAW, IPPROTO_ICMP);
		236
		237	if (icmpv4_fd < 0)
		238	return -1;
		239
		240	#ifdef ICMP_FILTER
		241	{
		242	icmp_filter oval;
		243	oval.data = 0xffffffff;
		244	if (::conf.icmp_type < 32)
		245	oval.data &= ~(1 << ::conf.icmp_type);
		246
		247	setsockopt (icmpv4_fd, SOL_RAW, ICMP_FILTER, &oval, sizeof oval);
		248	}
		249	#endif
		250
		251	#if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
		252	// this I really consider a linux bug. I am neither connected
		253	// nor do I fragment myself. Linux still sets DF and doesn't
		254	// fragment for me sometimes.
		255	{
		256	int oval = IP_PMTUDISC_DONT;
134	setsockopt (ipv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);	257	setsockopt (icmpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
		258	}
		259	#endif
		260
		261	sockinfo si (THISNODE, PROT_ICMPv4);
		262
		263	if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ()))
		264	{
		265	slog (L_ERR, _("can't bind icmpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
		266	return -1;
135	}	267	}
136	#endif
137		268
138	ipv4_ev_watcher.start (ipv4_fd, POLLIN);	269	icmpv4_ev_watcher.start (icmpv4_fd, EV_READ);
		270	++success;
139	}	271	}
		272	#endif
		273
		274	tcpv4_fd = -1;
140		275
141	#if ENABLE_TCP	276	#if ENABLE_TCP
142	if (THISNODE->protocols & PROT_TCPv4)	277	if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port)
143	{	278	{
144	tcpv4_fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);	279	tcpv4_fd = setup_socket (PROT_TCPv4, PF_INET, SOCK_STREAM, IPPROTO_TCP);
145		280
146	if (tcpv4_fd < 0)	281	if (tcpv4_fd < 0)
147	return -1;	282	return -1;
148		283
149	// standard daemon practise...	284	// standard daemon practise...
154		289
155	sockinfo si (THISNODE, PROT_TCPv4);	290	sockinfo si (THISNODE, PROT_TCPv4);
156		291
157	if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ()))	292	if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ()))
158	{	293	{
159	slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno));	294	slog (L_ERR, _("can't bind tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
160	exit (1);	295	return -1;
161	}	296	}
162		297
163	if (listen (tcpv4_fd, 5))	298	if (listen (tcpv4_fd, 5))
164	{	299	{
165	slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno));	300	slog (L_ERR, _("can't listen tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
166	exit (1);	301	return -1;
		302	}
		303
		304	tcpv4_ev_watcher.start (tcpv4_fd, EV_READ);
		305	++success;
		306	}
		307	else
		308	THISNODE->protocols &= ~PROT_TCPv4;
		309	#endif
		310
		311	dnsv4_tos = -1;
		312	dnsv4_fd = -1;
		313
		314	#if ENABLE_DNS
		315	if (THISNODE->protocols & PROT_DNSv4)
		316	{
		317	dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4);
		318
		319	dnsv4_fd = setup_socket (PROT_DNSv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP);
		320
		321	if (dnsv4_fd < 0)
		322	return -1;
		323
		324	# if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
		325	// this I really consider a linux bug. I am neither connected
		326	// nor do I fragment myself. Linux still sets DF and doesn't
		327	// fragment for me sometimes.
		328	{
		329	int oval = IP_PMTUDISC_DONT;
		330	setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
167	}	331	}
168
169	tcpv4_ev_watcher.start (tcpv4_fd, POLLIN);
170	}
171	#endif	332	# endif
		333
		334	// standard daemon practise...
		335	{
		336	int oval = 1;
		337	setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
		338	}
		339
		340	sockinfo si (THISNODE->dns_hostname,
		341	THISNODE->dns_hostname ? THISNODE->dns_port : 0,
		342	PROT_DNSv4);
		343
		344	if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ()))
		345	{
		346	slog (L_ERR, _("can't bind dnsv4 on %s: %s, exiting."), (const char *)si, strerror (errno));
		347	return -1;
		348	}
		349
		350	dnsv4_ev_watcher.start (dnsv4_fd, EV_READ);
		351	++success;
		352	}
		353	#endif
		354
		355	/////////////////////////////////////////////////////////////////////////////
		356
		357	if (!success)
		358	{
		359	slog (L_ERR, _("no protocols enabled."));
		360	return -1;
		361	}
		362
		363	reconnect_all ();
		364
		365	/////////////////////////////////////////////////////////////////////////////
172		366
173	tap = new tap_device ();	367	tap = new tap_device ();
174	if (!tap) //D this, of course, never catches	368	if (!tap) //D this, of course, never catches
175	{	369	{
176	slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname);	370	slog (L_ERR, _("cannot create network interface '%s'."), conf.ifname);
177	exit (1);	371	return -1;
178	}	372	}
179		373
180	run_script (run_script_cb (this, &vpn::script_if_up), true);	374	fcntl (tap->fd, F_SETFD, FD_CLOEXEC);
181		375
		376	run_script_cb cb;
		377	cb.set<vpn, &vpn::script_if_init> (this);
		378
		379	if (tap->if_up () &&
		380	!run_script (cb, true))
		381	{
		382	slog (L_ERR, _("interface initialization command '%s' failed."),
		383	tap->if_up ());
		384	return -1;
		385	}
		386
		387	cb.set<vpn, &vpn::script_if_up> (this);
		388	if (!run_script (cb, true))
		389	{
		390	slog (L_ERR, _("if-up command execution failed."));
		391	return -1;
		392	}
		393
182	tap_ev_watcher.start (tap->fd, POLLIN);	394	tap_ev_watcher.start (tap->fd, EV_READ);
183
184	reconnect_all ();
185		395
186	return 0;	396	return 0;
187	}	397	}
188		398
189	// send a vpn packet out to other hosts	399	bool
		400	vpn::drop_privileges ()
		401	{
		402	if (::conf.change_root)
		403	{
		404	if (!strcmp (::conf.change_root, "/"))
		405	{
		406	char dir [L_tmpnam];
		407	if (!tmpnam (dir))
		408	{
		409	slog (L_CRIT, _("unable to create anonymous root path."));
		410	return false;
		411	}
		412
		413	if (mkdir (dir, 0700))
		414	{
		415	slog (L_CRIT, _("unable to crate anonymous root directory."));
		416	return false;
		417	}
		418
		419	if (chdir (dir))
		420	{
		421	slog (L_CRIT, _("unable to change to anonymous root directory."));
		422	return false;
		423	}
		424
		425	if (rmdir (dir))
		426	slog (L_ERR, _("unable to remove anonymous root directory, continuing."));
		427	}
		428	else
		429	{
		430	if (chdir (::conf.change_root))
		431	{
		432	slog (L_CRIT, _("%s: unable to change to specified root directory."), ::conf.change_root);
		433	return false;
		434	}
		435	}
		436
		437	if (chroot ("."))
		438	{
		439	slog (L_CRIT, _("unable to set new root directory."));
		440	return false;
		441	}
		442
		443	if (chdir ("/"))
		444	{
		445	slog (L_CRIT, _("unable to set cwd to new root directory."));
		446	return false;
		447	}
		448	}
		449
		450	if (::conf.change_gid)
		451	if (setgid (::conf.change_gid))
		452	{
		453	slog (L_CRIT, _("unable to change group id to %d."), ::conf.change_gid);
		454	return false;
		455	}
		456
		457	if (::conf.change_uid)
		458	if (setuid (::conf.change_uid))
		459	{
		460	slog (L_CRIT, _("unable to change user id to %d."), ::conf.change_uid);
		461	return false;
		462	}
		463
		464	return true;
		465	}
		466
		467	bool
		468	vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
		469	{
		470	set_tos (ipv4_fd, ipv4_tos, tos);
		471	sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
		472
		473	return true;
		474	}
		475
		476	static u16
		477	ipv4_checksum (u16 *data, unsigned int len)
		478	{
		479	// use 32 bit accumulator and fold back carry bits at the end
		480	u32 sum = 0;
		481
		482	while (len > 1)
		483	{
		484	sum += *data++;
		485	len -= 2;
		486	}
		487
		488	// odd byte left?
		489	if (len)
		490	sum += (u8 )data;
		491
		492	// add back carry bits
		493	sum = (sum >> 16) + (sum & 0xffff); // lo += hi
		494	sum += (sum >> 16); // carry
		495
		496	return ~sum;
		497	}
		498
		499	#if ENABLE_ICMP
		500	bool
		501	vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
		502	{
		503	pkt->unshift_hdr (4);
		504
		505	icmp_header hdr = (icmp_header )&((*pkt)[0]);
		506	hdr->type = ::conf.icmp_type;
		507	hdr->code = 255;
		508	hdr->checksum = 0;
		509	hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len);
		510
		511	set_tos (icmpv4_fd, icmpv4_tos, tos);
		512	sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
		513
		514	return true;
		515	}
		516	#endif
		517
		518	bool
		519	vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)
		520	{
		521	set_tos (udpv4_fd, udpv4_tos, tos);
		522	sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
		523
		524	return true;
		525	}
		526
190	void	527	void
191	vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)	528	vpn::inject_data_packet (tap_packet *pkt, int dst)
192	{	529	{
193	switch (si.prot)	530	if (dst)
194	{
195	case PROT_IPv4:
196	send_ipv4_packet (pkt, si, tos);
197	break;
198
199	case PROT_UDPv4:
200	send_udpv4_packet (pkt, si, tos);
201	break;
202
203	#if ENABLE_TCP
204	case PROT_TCPv4:
205	send_tcpv4_packet (pkt, si, tos);
206	break;
207	#endif
208
209	default:
210	slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si);
211	abort ();
212	}	531	{
213	}	532	// unicast
214		533	if (dst != THISNODE->id)
215	void	534	conns[dst - 1]->inject_data_packet (pkt);
216	vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)	535	}
217	{	536	else
218	setsockopt (ipv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);	537	{
219	sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());	538	// broadcast, this is ugly, but due to the security policy
220	}	539	// we have to connect to all hosts...
221		540	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
222	void	541	if ((*c)->conf != THISNODE)
223	vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos)	542	(*c)->inject_data_packet (pkt);
224	{	543	}
225	setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos);
226	sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ());
227	}	544	}
228		545
229	void	546	void
230	vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)	547	vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi)
231	{	548	{
232	unsigned int src = pkt->src ();	549	unsigned int src = pkt->src ();
233	unsigned int dst = pkt->dst ();	550	unsigned int dst = pkt->dst ();
234		551
235	slog (L_NOISE, _("<<?/%s received possible vpn packet type %d from %d to %d, length %d"),	552	slog (L_NOISE, _("<<?/%s received possible vpn packet type %d from %d to %d, length %d."),
236	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst (), pkt->len);	553	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst (), pkt->len);
237		554
238	if (src == 0 \|\| src > conns.size ()	555	if (src == 0 \|\| src > conns.size ()
239	\|\| dst > conns.size ()	556	\|\| dst > conns.size ()
240	\|\| pkt->typ () >= vpn_packet::PT_MAX)	557	\|\| pkt->typ () >= vpn_packet::PT_MAX)
241	slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)"),	558	slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)."),
242	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ());
243	else if (dst > conns.size ())
244	slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)"),
245	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ());	559	(const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ());
246	else	560	else
247	{	561	{
248	connection *c = conns[src - 1];	562	connection *c = conns[src - 1];
249		563
250	if (dst == 0 && !THISNODE->routerprio)	564	if (dst == 0)
251	slog (L_WARN, _("%s(%s): received broadcast, but we are no router"),	565	slog (L_WARN, _("%s(%s): received broadcast (protocol violation)."),
252	c->conf->nodename, (const char *)rsi);	566	c->conf->nodename, (const char *)rsi);
253	else if (dst != 0 && dst != THISNODE->id)	567	else if (dst != THISNODE->id)
254	{	568	{
255	if (THISNODE->routerprio)	569	if (THISNODE->routerprio)
256	// the tos setting gets lost here. who cares.	570	// the tos setting gets lost here. who cares.
257	conns[dst - 1]->inject_vpn_packet (pkt);	571	conns[dst - 1]->inject_vpn_packet (pkt);
258	else	572	else
259	slog (L_WARN,	573	slog (L_WARN,
260	_("%s(%s): forwarding request (=> %s), but we are no router"),	574	_("%s(%s): request to forward packet to %s, but we are no router (config mismatch?)."),
261	c->conf->nodename, (const char *)rsi,	575	c->conf->nodename, (const char *)rsi,
262	conns[dst - 1]->conf->nodename);	576	conns[dst - 1]->conf->nodename);
263	}	577	}
264	else	578	else
265	c->recv_vpn_packet (pkt, rsi);	579	c->recv_vpn_packet (pkt, rsi);
266	}	580	}
267	}	581	}
268		582
269	void	583	bool
270	vpn::udpv4_ev (io_watcher &w, short revents)	584	vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos)
271	{	585	{
272	if (revents & (POLLIN \| POLLERR))	586	switch (si.prot)
		587	{
		588	case PROT_IPv4:
		589	return send_ipv4_packet (pkt, si, tos);
		590
		591	case PROT_UDPv4:
		592	return send_udpv4_packet (pkt, si, tos);
		593
		594	#if ENABLE_TCP
		595	case PROT_TCPv4:
		596	return send_tcpv4_packet (pkt, si, tos);
		597	#endif
		598	#if ENABLE_ICMP
		599	case PROT_ICMPv4:
		600	return send_icmpv4_packet (pkt, si, tos);
		601	#endif
		602	#if ENABLE_DNS
		603	case PROT_DNSv4:
		604	return send_dnsv4_packet (pkt, si, tos);
		605	#endif
		606	default:
		607	slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol."), (const char *)si);
		608	}
		609
		610	return false;
		611	}
		612
		613	inline void
		614	vpn::ipv4_ev (ev::io &w, int revents)
		615	{
		616	if (revents & EV_READ)
273	{	617	{
274	vpn_packet *pkt = new vpn_packet;	618	vpn_packet *pkt = new vpn_packet;
275	struct sockaddr_in sa;	619	struct sockaddr_in sa;
276	socklen_t sa_len = sizeof (sa);	620	socklen_t sa_len = sizeof (sa);
277	int len;	621	int len;
278		622
279	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);	623	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);
280		624
281	sockinfo si(sa, PROT_UDPv4);	625	sockinfo si(sa, PROT_IPv4);
282		626
283	if (len > 0)	627	if (len > 0)
284	{	628	{
285	pkt->len = len;	629	pkt->len = len;
286		630
		631	// raw sockets deliver the ipv4 header, but don't expect it on sends
		632	pkt->skip_hdr (pkt->ipv4_hdr_len ());
		633
287	recv_vpn_packet (pkt, si);	634	recv_vpn_packet (pkt, si);
288	}	635	}
289	else	636	else
290	{	637	{
291	// probably ECONNRESET or somesuch	638	// probably ECONNRESET or somesuch
292	slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno));	639	slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno));
293	}	640	}
294		641
295	delete pkt;	642	delete pkt;
296	}	643	}
297	else if (revents & POLLHUP)
298	{
299	// this cannot ;) happen on udp sockets
300	slog (L_ERR, _("FATAL: POLLHUP on udp v4 fd, terminating."));
301	exit (1);
302	}
303	else	644	else
304	{	645	{
305	slog (L_ERR,	646	slog (L_ERR,
306	_("FATAL: unknown revents %08x in socket, terminating\n"),	647	_("FATAL: unknown revents %08x in socket, exiting.\n"),
307	revents);	648	revents);
308	exit (1);	649	exit (EXIT_FAILURE);
309	}	650	}
310	}	651	}
311		652
312	void	653	#if ENABLE_ICMP
		654	inline void
313	vpn::ipv4_ev (io_watcher &w, short revents)	655	vpn::icmpv4_ev (ev::io &w, int revents)
314	{	656	{
315	if (revents & (POLLIN \| POLLERR))	657	if (revents & EV_READ)
316	{	658	{
317	vpn_packet *pkt = new vpn_packet;	659	vpn_packet *pkt = new vpn_packet;
318	struct sockaddr_in sa;	660	struct sockaddr_in sa;
319	socklen_t sa_len = sizeof (sa);	661	socklen_t sa_len = sizeof (sa);
320	int len;	662	int len;
321		663
322	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);	664	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);
323		665
324	sockinfo si(sa, PROT_IPv4);	666	sockinfo si(sa, PROT_ICMPv4);
325		667
326	if (len > 0)	668	if (len > 0)
327	{	669	{
328	pkt->len = len;	670	pkt->len = len;
329		671
		672	icmp_header hdr = (icmp_header )&((*pkt)[IP_OVERHEAD]);
		673
		674	if (hdr->type == ::conf.icmp_type
		675	&& hdr->code == 255)
		676	{
330	// raw sockets deliver the ipv4, but don't expect it on sends	677	// raw sockets deliver the ipv4, but don't expect it on sends
331	// this is slow, but...	678	// this is slow, but...
332	pkt->skip_hdr (IP_OVERHEAD);	679	pkt->skip_hdr (pkt->ipv4_hdr_len () + (ICMP_OVERHEAD - IP_OVERHEAD));
		680
		681	recv_vpn_packet (pkt, si);
		682	}
		683	}
		684	else
		685	{
		686	// probably ECONNRESET or somesuch
		687	slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno));
		688	}
		689
		690	delete pkt;
		691	}
		692	else
		693	{
		694	slog (L_ERR,
		695	_("FATAL: unknown revents %08x in socket, exiting.\n"),
		696	revents);
		697	exit (EXIT_FAILURE);
		698	}
		699	}
		700	#endif
		701
		702	inline void
		703	vpn::udpv4_ev (ev::io &w, int revents)
		704	{
		705	if (revents & EV_READ)
		706	{
		707	vpn_packet *pkt = new vpn_packet;
		708	struct sockaddr_in sa;
		709	socklen_t sa_len = sizeof (sa);
		710	int len;
		711
		712	len = recvfrom (w.fd, &((pkt)[0]), MAXSIZE, 0, (sockaddr )&sa, &sa_len);
		713
		714	sockinfo si(sa, PROT_UDPv4);
		715
		716	if (len > 0)
		717	{
		718	pkt->len = len;
333		719
334	recv_vpn_packet (pkt, si);	720	recv_vpn_packet (pkt, si);
335	}	721	}
336	else	722	else
337	{	723	{
338	// probably ECONNRESET or somesuch	724	// probably ECONNRESET or somesuch
339	slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno));	725	slog (L_DEBUG, _("%s: fd %d, %s."), (const char *)si, w.fd, strerror (errno));
340	}	726	}
341		727
342	delete pkt;	728	delete pkt;
343	}	729	}
344	else if (revents & POLLHUP)
345	{
346	// this cannot ;) happen on udp sockets
347	slog (L_ERR, _("FATAL: POLLHUP on ipv4 fd, terminating."));
348	exit (1);
349	}
350	else	730	else
351	{	731	{
352	slog (L_ERR,	732	slog (L_ERR,
353	_("FATAL: unknown revents %08x in socket, terminating\n"),	733	_("FATAL: unknown revents %08x in socket, exiting.\n"),
354	revents);	734	revents);
355	exit (1);	735	exit (EXIT_FAILURE);
356	}	736	}
357	}	737	}
358		738
359	void	739	inline void
360	vpn::tap_ev (io_watcher &w, short revents)	740	vpn::tap_ev (ev::io &w, int revents)
361	{	741	{
362	if (revents & POLLIN)	742	if (revents & EV_READ)
363	{	743	{
364	/* process data */	744	/* process data */
365	tap_packet *pkt;	745	tap_packet *pkt;
366		746
367	pkt = tap->recv ();	747	pkt = tap->recv ();
368		748
		749	if (!pkt)
		750	return;
		751
		752	if (pkt->len > 14)
		753	{
369	int dst = mac2id (pkt->dst);	754	int dst = mac2id (pkt->dst);
370	int src = mac2id (pkt->src);	755	int src = mac2id (pkt->src);
371		756
372	if (src != THISNODE->id)	757	if (src != THISNODE->id)
373	{
374	slog (L_ERR, _("FATAL: tap packet not originating on current node received, terminating."));
375	exit (1);
376	}
377
378	if (dst == THISNODE->id)
379	{
380	slog (L_ERR, _("FATAL: tap packet destined for current node received, terminating."));
381	exit (1);
382	}
383
384	if (dst > conns.size ())
385	slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst);
386	else
387	{
388	if (dst)
389	{	758	{
390	// unicast	759	slog (L_ERR, _("FATAL: tap packet not originating on current node received (if-up script not working properly?), exiting."));
391	if (dst != THISNODE->id)	760	exit (EXIT_FAILURE);
392	conns[dst - 1]->inject_data_packet (pkt);
393	}	761	}
		762
		763	if (dst == THISNODE->id)
		764	{
		765	slog (L_ERR, _("FATAL: tap packet destined for current node received, exiting."));
		766	exit (EXIT_FAILURE);
		767	}
		768
		769	if (dst > conns.size ())
		770	slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst);
394	else	771	else
395	{
396	// broadcast, first check router, then self, then english
397	connection *router = find_router ();
398
399	if (router)
400	router->inject_data_packet (pkt, true);	772	inject_data_packet (pkt, dst);
401	else
402	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
403	if ((*c)->conf != THISNODE)
404	(*c)->inject_data_packet (pkt);
405	}
406	}	773	}
407		774
408	delete pkt;	775	delete pkt;
409	}
410	else if (revents & (POLLHUP \| POLLERR))
411	{
412	slog (L_ERR, _("FATAL: POLLHUP or POLLERR on network device fd, terminating."));
413	exit (1);
414	}	776	}
415	else	777	else
416	abort ();	778	abort ();
417	}	779	}
418		780
419	void	781	inline void
420	vpn::event_cb (time_watcher &w)	782	vpn::event_cb (ev::timer &w, int)
421	{	783	{
422	if (events)	784	if (events)
423	{	785	{
424	if (events & EVENT_SHUTDOWN)	786	if (events & EVENT_SHUTDOWN)
425	{	787	{
426	slog (L_INFO, _("preparing shutdown..."));	788	slog (L_INFO, _("preparing shutdown..."));
427		789
428	shutdown_all ();	790	shutdown_all ();
429
430	remove_pid (pidfilename);	791	remove_pid (conf.pidfilename);
431
432	slog (L_INFO, _("terminating"));	792	slog (L_INFO, _("exiting."));
433		793	exit (EXIT_SUCCESS);
434	exit (0);
435	}	794	}
436		795
437	if (events & EVENT_RECONNECT)	796	if (events & EVENT_RECONNECT)
438	{	797	{
439	slog (L_INFO, _("forced reconnect"));	798	slog (L_INFO, _("forced reconnect."));
440		799
441	reconnect_all ();	800	reconnect_all ();
442	}	801	}
443		802
444	events = 0;	803	events = 0;
445	}	804	}
446
447	w.at = TSTAMP_CANCEL;
448	}	805	}
449		806
450	void	807	void
451	vpn::shutdown_all ()	808	vpn::shutdown_all ()
452	{	809	{
…		…
462		819
463	conns.clear ();	820	conns.clear ();
464		821
465	connection_init ();	822	connection_init ();
466		823
467	for (configuration::node_vector::iterator i = conf.nodes.begin ();	824	for (configuration::node_vector::iterator i = conf.nodes.begin (); i != conf.nodes.end (); ++i)
468	i != conf.nodes.end (); ++i)	825	conns.push_back (new connection (this, *i));
469	{
470	connection *conn = new connection (this);
471		826
472	conn->conf = *i;	827	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
473	conns.push_back (conn);
474
475	conn->establish_connection ();	828	(*c)->establish_connection ();
476	}
477	}	829	}
478		830
479	connection *vpn::find_router ()	831	bool
		832	vpn::can_direct (conf_node src, conf_node dst) const
480	{	833	{
481	u32 prio = 0;	834	return src != dst
		835	&& src->may_direct (dst)
		836	&& dst->may_direct (src)
		837	&& (((src->protocols & dst->protocols) && src->connectmode == conf_node::C_ALWAYS)
		838	\|\| (src->protocols & dst->connectable_protocols ()));
		839	}
		840
		841	// only works for indirect and routed connections: find a router
		842	// from THISNODE to dst
		843	connection *
		844	vpn::find_router_for (const connection *dst)
		845	{
482	connection *router = 0;	846	connection *router = 0;
483		847
		848	// first try to find a router with a direct connection, route there
		849	// regardless of any other considerations.
		850	{
		851	u32 prio = 1;
		852
		853	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)
		854	{
		855	connection c = i;
		856
		857	if (c->conf->routerprio > prio
		858	&& c->conf != THISNODE
		859	&& can_direct (c->conf, dst->conf)
		860	&& c->ictx && c->octx)
		861	{
		862	prio = c->conf->routerprio;
		863	router = c;
		864	}
		865	}
		866	}
		867
		868	if (router)
		869	return router;
		870
		871	// second try find the router with the highest priority, higher than ours
		872	{
		873	u32 prio = THISNODE->routerprio ? THISNODE->routerprio : 1;
		874
		875	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)
		876	{
		877	connection c = i;
		878
		879	if (c->conf->routerprio > prio
		880	&& c != dst
		881	&& c->conf != THISNODE
		882	&& c->ictx && c->octx)
		883	{
		884	prio = c->conf->routerprio;
		885	router = c;
		886	}
		887	}
		888	}
		889
		890	return router;
		891	}
		892
		893	void
		894	vpn::connection_established (connection *c)
		895	{
484	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)	896	for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)
485	{	897	{
486	connection c = i;	898	connection o = i;
487		899
488	if (c->conf->routerprio > prio	900	if (!o->is_direct
489	&& c->connectmode == conf_node::C_ALWAYS	901	&& o->si.valid ()
490	&& c->conf != THISNODE	902	&& c->si != o->si
491	&& c->ictx && c->octx)	903	&& c == find_router_for (o))
492	{
493	prio = c->conf->routerprio;
494	router = c;
495	}	904	{
		905	slog (L_DEBUG, _("%s: can now route packets via %s, re-keying connection."),
		906	o->conf->nodename, c->conf->nodename);
		907	o->rekey ();
		908	}
496	}	909	}
497
498	return router;
499	}	910	}
500		911
501	void vpn::connect_request (int id)	912	void
		913	vpn::send_connect_request (connection *c)
502	{	914	{
503	connection *c = find_router ();	915	connection *r = find_router_for (c);
504		916
505	if (c)	917	if (r)
		918	{
		919	slog (L_TRACE, _("%s: no address known, sending mediated connection request via %s."),
		920	c->conf->nodename, r->conf->nodename);
506	c->connect_request (id);	921	r->send_connect_request (c->conf->id);
507	//else // does not work, because all others must connect to the same router	922	}
508	// // no router found, aggressively connect to all routers	923	else
509	// for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i)	924	slog (L_DEBUG, _("%s: no way to connect and no router found: unable to connect at this time."),
510	// if ((*i)->conf->routerprio)	925	c->conf->nodename);
511	// (*i)->establish_connection ();
512	}	926	}
513		927
514	void	928	void
515	connection::dump_status ()	929	connection::dump_status ()
516	{	930	{
517	slog (L_NOTICE, _("node %s (id %d)"), conf->nodename, conf->id);	931	slog (L_NOTICE, _("node %s (id %d)"), conf->nodename, conf->id);
518	slog (L_NOTICE, _(" connectmode %d (%d) / sockaddr %s / minor %d"),	932	slog (L_NOTICE, _(" connectmode %d (%d) / sockaddr %s / minor %d"),
519	connectmode, conf->connectmode, (const char *)si, (int)prot_minor);	933	connectmode, conf->connectmode, (const char *)si, (int)prot_minor);
520	slog (L_NOTICE, _(" ictx/octx %08lx/%08lx / oseqno %d / retry_cnt %d"),	934	slog (L_NOTICE, _(" ictx/octx %08lx/%08lx / oseqno %d / retry_cnt %d"),
521	(long)ictx, (long)octx, (int)oseqno, (int)retry_cnt);	935	(long)ictx, (long)octx, (int)oseqno, (int)retry_cnt);
522	slog (L_NOTICE, _(" establish_conn %ld / rekey %ld / keepalive %ld"),
523	(long)(establish_connection.at), (long)(rekey.at), (long)(keepalive.at));
524	}	936	}
525		937
526	void	938	void
527	vpn::dump_status ()	939	vpn::dump_status ()
528	{	940	{
529	slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)NOW);	941	slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)ev_now ());
530		942
531	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)	943	for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
532	(*c)->dump_status ();	944	(*c)->dump_status ();
533		945
534	slog (L_NOTICE, _("END status dump"));	946	slog (L_NOTICE, _("END status dump"));
535	}	947	}
536		948
537	vpn::vpn (void)	949	vpn::vpn (void)
538	: event(this, &vpn::event_cb)	950	{
		951	event .set<vpn, &vpn::event_cb > (this);
539	, udpv4_ev_watcher(this, &vpn::udpv4_ev)	952	udpv4_ev_watcher .set<vpn, &vpn::udpv4_ev > (this);
540	, ipv4_ev_watcher (this, &vpn::ipv4_ev)	953	ipv4_ev_watcher .set<vpn, &vpn::ipv4_ev > (this);
541	, tap_ev_watcher (this, &vpn::tap_ev)
542	#if ENABLE_TCP	954	#if ENABLE_TCP
543	, tcpv4_ev_watcher(this, &vpn::tcpv4_ev)	955	tcpv4_ev_watcher .set<vpn, &vpn::tcpv4_ev > (this);
544	#endif	956	#endif
545	{	957	#if ENABLE_ICMP
		958	icmpv4_ev_watcher.set<vpn, &vpn::icmpv4_ev> (this);
		959	#endif
		960	#if ENABLE_DNS
		961	dnsv4_ev_watcher .set<vpn, &vpn::dnsv4_ev > (this);
		962	#endif
		963	tap_ev_watcher .set<vpn, &vpn::tap_ev > (this);
546	}	964	}
547		965
548	vpn::~vpn ()	966	vpn::~vpn ()
549	{	967	{
550	}	968	}

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Comparing gvpe/src/vpn.C (file contents): Revision 1.6 by pcg, Sun Apr 6 04:17:36 2003 UTC vs. Revision 1.65 by root, Tue Jul 16 16:44:37 2013 UTC

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Comparing gvpe/src/vpn.C (file contents):
Revision 1.6 by pcg, Sun Apr 6 04:17:36 2003 UTC vs.
Revision 1.65 by root, Tue Jul 16 16:44:37 2013 UTC