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

Comparing gvpe/src/conf.C (file contents):
Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.c -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	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
10	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
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	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
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	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
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	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.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
37		45
38	#include <openssl/err.h>	46	#include <openssl/err.h>
39	#include <openssl/pem.h>	47	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	49	#include <openssl/rand.h>
42		50	#include <openssl/bn.h>
43	#include "gettext.h"
44		51
45	#include "conf.h"	52	#include "conf.h"
46	#include "slog.h"	53	#include "slog.h"
47	#include "util.h"	54	#include "util.h"
48		55
49	char *confbase;	56	char *confbase;
50	char *thisnode;	57	char *thisnode;
51	char *identname;	58	char *identname;
52	char *pidfilename;
53		59
54	struct configuration conf;	60	struct configuration conf;
55		61
		62	u8
56	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
57	{	64	{
58	if (protset & PROT_IPv4)	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	return PROT_IPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
60		70
61	return PROT_UDPv4;	71	return 0;
62	}	72	}
63		73
		74	const char *
64	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
65	{	76	{
66	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
		80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
68		82
69	return "<unknown>";	83	return "<unknown>";
70	}	84	}
71		85
72	configuration::configuration ()	86	static bool
		87	match_list (const vector<const char > &list, const char str)
73	{	88	{
74	init ();	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
75	}	90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
76		94
77	configuration::~configuration ()	95	return false;
78	{
79	cleanup ();
80	}	96	}
81		97
		98	bool
		99	conf_node::may_direct (struct conf_node *other)
		100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
		108	}
		109
		110	void
		111	conf_node::print ()
		112	{
		113	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",
		114	id,
		115	id >> 8, id & 0xff,
		116	compress ? 'Y' : 'N',
		117	connectmode == C_ONDEMAND ? "ondemand"
		118	: connectmode == C_NEVER ? "never"
		119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
		122	nodename,
		123	hostname ? hostname : "",
		124	hostname ? ":" : "",
		125	hostname ? udp_port : 0
		126	);
		127	}
		128
		129	conf_node::~conf_node ()
		130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
		134	if (rsa_key)
		135	RSA_free (rsa_key);
		136
		137	free (nodename);
		138	free (hostname);
		139	free (if_up_data);
		140	#if ENABLE_DNS
		141	free (domain);
		142	free (dns_hostname);
		143	#endif
		144	#endif
		145	}
		146
		147	void
82	void configuration::init ()	148	configuration::init ()
83	{	149	{
84	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
85		151
		152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
86	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
87	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
88	llevel = L_INFO;	156	llevel = L_INFO;
89	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
		158	#if ENABLE_ICMP
		159	icmp_type = ICMP_ECHOREPLY;
		160	#endif
90		161
91	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
		163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
92	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
93	default_node.compress = true;	165	default_node.compress = true;
94	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
95	}	167	default_node.max_retry = DEFAULT_MAX_RETRY;
		168	default_node.max_ttl = DEFAULT_MAX_TTL;
		169	default_node.max_queue = DEFAULT_MAX_QUEUE;
		170	default_node.if_up_data = strdup ("");
96		171
		172	#if ENABLE_DNS
		173	default_node.dns_port = 0; // default is 0 == client
		174
		175	dns_forw_host = strdup ("127.0.0.1");
		176	dns_forw_port = 53;
		177	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		178	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		179	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		180	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		181	#endif
		182
		183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		184	}
		185
		186	void
97	void configuration::cleanup()	187	configuration::cleanup ()
98	{	188	{
99	if (rsa_key)	189	if (rsa_key)
100	RSA_free (rsa_key);	190	RSA_free (rsa_key);
101		191
102	free (ifname);
103
104	rsa_key = 0;	192	rsa_key = 0;
105	ifname = 0;	193
		194	free (pidfilename); pidfilename = 0;
		195	free (ifname); ifname = 0;
		196	#if ENABLE_HTTP_PROXY
		197	free (proxy_host); proxy_host = 0;
		198	free (proxy_auth); proxy_auth = 0;
		199	#endif
		200	#if ENABLE_DNS
		201	free (dns_forw_host); dns_forw_host = 0;
		202	#endif
		203	free (script_if_up); script_if_up = 0;
		204	free (script_node_up); script_node_up = 0;
		205	free (script_node_change); script_node_change = 0;
		206	free (script_node_down); script_node_down = 0;
106	}	207	}
107		208
108	void	209	void
109	configuration::clear_config ()	210	configuration::clear ()
110	{	211	{
111	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	212	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
112	delete *i;	213	delete *i;
113		214
114	nodes.clear ();	215	nodes.clear ();
115		216
116	cleanup ();	217	cleanup ();
117	init ();	218	init ();
118	}	219	}
119		220
120	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
121	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
122	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
123	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
124	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
125	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
126	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
127	else \	228	else \
128	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
129	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
130	name, var, fname, lineno);
131		231
132	void configuration::read_config (bool need_keys)	232	const char *
		233	configuration_parser::parse_line (char *line)
		234	{
		235	{
		236	char *end = line + strlen (line);
		237
		238	while (*end < ' ' && end >= line)
		239	end--;
		240
		241	*++end = 0;
		242	}
		243
		244	char *tok = line;
		245	const char *var = strtok (tok, "\t =");
		246	tok = 0;
		247
		248	if (!var \|\| !var[0])
		249	return 0; /* no tokens on this line */
		250
		251	if (var[0] == '#')
		252	return 0; /* comment: ignore */
		253
		254	char *val = strtok (NULL, "\t\n\r =");
		255
		256	if (!val \|\| val[0] == '#')
		257	return _("no value given for variable. (ignored)");
		258
		259	if (!strcmp (var, "on"))
		260	{
		261	if (!::thisnode
		262	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		263	\|\| !strcmp (val, ::thisnode))
		264	return parse_line (strtok (NULL, "\n\r"));
		265	else
		266	return 0;
		267	}
		268
		269	// truly global
		270	if (!strcmp (var, "loglevel"))
		271	{
		272	loglevel l = string_to_loglevel (val);
		273
		274	if (l == L_NONE)
		275	return _("unknown loglevel. (skipping)");
		276	}
		277	else if (!strcmp (var, "ip-proto"))
		278	conf.ip_proto = atoi (val);
		279	else if (!strcmp (var, "icmp-type"))
		280	{
		281	#if ENABLE_ICMP
		282	conf.icmp_type = atoi (val);
		283	#endif
		284	}
		285
		286	// per config
		287	else if (!strcmp (var, "node"))
		288	{
		289	parse_argv ();
		290
		291	conf.default_node.id++;
		292	node = new conf_node (conf.default_node);
		293	conf.nodes.push_back (node);
		294	node->nodename = strdup (val);
		295
		296	{
		297	char *fname;
		298	FILE *f;
		299
		300	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		301
		302	f = fopen (fname, "r");
		303	if (f)
		304	{
		305	node->rsa_key = RSA_new ();
		306
		307	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		308	{
		309	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		310	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		311	exit (EXIT_FAILURE);
		312	}
		313
		314	require (RSA_blinding_on (node->rsa_key, 0));
		315
		316	fclose (f);
		317	}
		318	else
		319	{
		320	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		321
		322	if (need_keys)
		323	exit (EXIT_FAILURE);
		324	}
		325
		326	free (fname);
		327	}
		328
		329	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		330	conf.thisnode = node;
		331	}
		332	else if (!strcmp (var, "private-key"))
		333	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		334	else if (!strcmp (var, "ifpersist"))
		335	parse_bool (conf.ifpersist, "ifpersist", true, false);
		336	else if (!strcmp (var, "ifname"))
		337	free (conf.ifname), conf.ifname = strdup (val);
		338	else if (!strcmp (var, "rekey"))
		339	conf.rekey = atoi (val);
		340	else if (!strcmp (var, "keepalive"))
		341	conf.keepalive = atoi (val);
		342	else if (!strcmp (var, "mtu"))
		343	conf.mtu = atoi (val);
		344	else if (!strcmp (var, "nfmark"))
		345	conf.nfmark = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "http-proxy-host"))
		393	{
		394	#if ENABLE_HTTP_PROXY
		395	free (conf.proxy_host), conf.proxy_host = strdup (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-port"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	conf.proxy_port = atoi (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-auth"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		408	#endif
		409	}
		410
		411	/* node-specific, non-defaultable */
		412	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		413	free (node->hostname), node->hostname = strdup (val);
		414
		415	/* node-specific, defaultable */
		416	else if (!strcmp (var, "udp-port"))
		417	node->udp_port = atoi (val);
		418	else if (!strcmp (var, "tcp-port"))
		419	node->tcp_port = atoi (val);
		420	else if (!strcmp (var, "dns-hostname"))
		421	{
		422	#if ENABLE_DNS
		423	free (node->dns_hostname), node->dns_hostname = strdup (val);
		424	#endif
		425	}
		426	else if (!strcmp (var, "dns-port"))
		427	{
		428	#if ENABLE_DNS
		429	node->dns_port = atoi (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-domain"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->domain), node->domain = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "if-up-data"))
		439	free (node->if_up_data), node->if_up_data = strdup (val);
		440	else if (!strcmp (var, "router-priority"))
		441	node->routerprio = atoi (val);
		442	else if (!strcmp (var, "max-retry"))
		443	node->max_retry = atoi (val);
		444	else if (!strcmp (var, "connect"))
		445	{
		446	if (!strcmp (val, "ondemand"))
		447	node->connectmode = conf_node::C_ONDEMAND;
		448	else if (!strcmp (val, "never"))
		449	node->connectmode = conf_node::C_NEVER;
		450	else if (!strcmp (val, "always"))
		451	node->connectmode = conf_node::C_ALWAYS;
		452	else if (!strcmp (val, "disabled"))
		453	node->connectmode = conf_node::C_DISABLED;
		454	else
		455	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		456	}
		457	else if (!strcmp (var, "inherit-tos"))
		458	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		459	else if (!strcmp (var, "compress"))
		460	parse_bool (node->compress, "compress", true, false);
		461	// all these bool options really really cost a lot of executable size!
		462	else if (!strcmp (var, "enable-tcp"))
		463	{
		464	#if ENABLE_TCP
		465	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		466	#endif
		467	}
		468	else if (!strcmp (var, "enable-icmp"))
		469	{
		470	#if ENABLE_ICMP
		471	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-dns"))
		475	{
		476	#if ENABLE_DNS
		477	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-udp"))
		481	{
		482	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		483	}
		484	else if (!strcmp (var, "enable-rawip"))
		485	{
		486	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		487	}
		488	else if (!strcmp (var, "allow-direct"))
		489	node->allow_direct.push_back (strdup (val));
		490	else if (!strcmp (var, "deny-direct"))
		491	node->deny_direct.push_back (strdup (val));
		492	else if (!strcmp (var, "max-ttl"))
		493	node->max_ttl = atof (val);
		494	else if (!strcmp (var, "max-queue"))
		495	node->max_queue = atoi (val);
		496
		497	// unknown or misplaced
		498	else
		499	return _("unknown configuration directive. (ignored)");
		500
		501	return 0;
		502	}
		503
		504	void
		505	conf_node::finalise ()
		506	{
		507	if (max_queue < 1)
		508	{
		509	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		510	max_queue = 1;
		511	}
		512
		513	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		514	{
		515	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		516	connectmode = C_ALWAYS;
		517	}
		518	}
		519
		520	void
		521	configuration_parser::parse_argv ()
		522	{
		523	for (int i = 0; i < argc; ++i)
		524	{
		525	char *v = argv [i];
		526
		527	if (!*v)
		528	continue;
		529
		530	char *enode = v;
		531
		532	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		533	enode++;
		534
		535	if (*enode != '.')
		536	enode = 0;
		537
		538	char *wnode = node == &conf.default_node
		539	? 0
		540	: node->nodename;
		541
		542	if ((!wnode && !enode)
		543	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		544	{
		545	const char *warn = parse_line (enode ? enode + 1 : v);
		546
		547	if (warn)
		548	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		549
		550	*v = 0;
		551	}
		552	}
		553	}
		554
		555	configuration_parser::configuration_parser (configuration &conf,
		556	bool need_keys,
		557	int argc,
		558	char **argv)
		559	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
133	{	560	{
134	char *fname;	561	char *fname;
135	FILE *f;	562	FILE *f;
136		563
137	clear_config ();	564	conf.clear ();
138		565
139	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
140	f = fopen (fname, "r");	567	f = fopen (fname, "r");
141		568
142	if (f)	569	if (f)
143	{	570	{
144	char line[16384];	571	char line[16384];
145	int lineno = 0;	572	int lineno = 0;
146	char var, val;	573	node = &conf.default_node;
147	conf_node *node = &default_node;
148		574
149	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
150	{	576	{
151	lineno++;	577	lineno++;
152		578
153	{	579	const char *warn = parse_line (line);
154	char *end = line + strlen (line);
155		580
156	while (*end < ' ' && end >= line)	581	if (warn)
157	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
158
159	*++end = 0;
160	}
161
162	char *tok = line;
163
164	retry:
165	var = strtok (tok, "\t =");
166	tok = 0;
167
168	if (!var \|\| !var[0])
169	continue; /* no tokens on this line */
170
171	if (var[0] == '#')
172	continue; /* comment: ignore */
173
174	val = strtok (NULL, "\t\n\r =");
175
176	if (!val \|\| val[0] == '#')
177	{
178	slog (L_WARN,
179	_("no value for variable `%s', at '%s' line %d"),
180	var, fname, lineno);
181	break;
182	}
183
184	if (!strcmp (var, "on"))
185	{
186	if (!::thisnode
187	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
188	\|\| !strcmp (val, ::thisnode))
189	goto retry;
190
191	continue;
192	}
193
194	// truly global
195	if (!strcmp (var, "loglevel"))
196	{
197	loglevel l = string_to_loglevel (val);
198
199	if (l != L_NONE)
200	llevel = l;
201	else
202	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
203	}
204	else if (!strcmp (var, "ip-proto"))
205	ip_proto = atoi (val);
206
207	// per config
208	else if (!strcmp (var, "node"))
209	{
210	default_node.id++;
211
212	node = new conf_node (default_node);
213
214	nodes.push_back (node);
215
216	node->nodename = strdup (val);
217
218	{
219	char *fname;
220	FILE *f;
221
222	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
223
224	f = fopen (fname, "r");
225	if (f)
226	{
227	node->rsa_key = RSA_new ();
228
229	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
230	{
231	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
232	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
233	exit (1);
234	}
235
236	RSA_blinding_on (node->rsa_key, 0);
237
238	fclose (f);
239	}
240	else
241	{
242	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
243
244	if (need_keys)
245	exit (1);
246	}
247
248	free (fname);
249	}
250
251	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
252	thisnode = node;
253	}
254	else if (!strcmp (var, "private-key"))
255	prikeyfile = strdup (val);
256	else if (!strcmp (var, "ifpersist"))
257	{
258	parse_bool (ifpersist, "ifpersist", true, false);
259	}
260	else if (!strcmp (var, "ifname"))
261	ifname = strdup (val);
262	else if (!strcmp (var, "rekey"))
263	rekey = atoi (val);
264	else if (!strcmp (var, "keepalive"))
265	keepalive = atoi (val);
266	else if (!strcmp (var, "mtu"))
267	mtu = atoi (val);
268	else if (!strcmp (var, "if-up"))
269	script_if_up = strdup (val);
270	else if (!strcmp (var, "node-up"))
271	script_node_up = strdup (val);
272	else if (!strcmp (var, "node-down"))
273	script_node_down = strdup (val);
274
275	/* node-specific, non-defaultable */
276	else if (node != &default_node && !strcmp (var, "hostname"))
277	{
278	free (node->hostname);
279	node->hostname = strdup (val);
280	}
281
282	/* node-specific, defaultable */
283	else if (!strcmp (var, "udp-port"))
284	node->udp_port = atoi (val);
285	else if (!strcmp (var, "router-priority"))
286	node->routerprio = atoi (val);
287	else if (!strcmp (var, "connect"))
288	{
289	if (!strcmp (val, "ondemand"))
290	node->connectmode = conf_node::C_ONDEMAND;
291	else if (!strcmp (val, "never"))
292	node->connectmode = conf_node::C_NEVER;
293	else if (!strcmp (val, "always"))
294	node->connectmode = conf_node::C_ALWAYS;
295	else if (!strcmp (val, "disabled"))
296	node->connectmode = conf_node::C_DISABLED;
297	else
298	slog (L_WARN,
299	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
300	var, fname, lineno);
301	}
302	else if (!strcmp (var, "inherit-tos"))
303	{
304	parse_bool (node->inherit_tos, "inherit-tos", true, false);
305	}
306	else if (!strcmp (var, "compress"))
307	{
308	parse_bool (node->compress, "compress", true, false);
309	}
310	// all these bool options really really cost a lot of executable size!
311	else if (!strcmp (var, "enable-udp"))
312	{
313	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
314	}
315	else if (!strcmp (var, "enable-rawip"))
316	{
317	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
318	}
319
320	// unknown or misplaced
321	else
322	{
323	slog (L_WARN,
324	_("unknown or misplaced variable `%s', at '%s' line %d"),
325	var, fname, lineno);
326	}
327	}	583	}
328		584
329	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
330	}	588	}
331	else	589	else
332	{	590	{
333	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	591	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
334	exit (1);	592	exit (EXIT_FAILURE);
335	}	593	}
336		594
337	free (fname);	595	free (fname);
338		596
339	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
340		598
341	f = fopen (fname, "r");	599	f = fopen (fname, "r");
342	if (f)	600	if (f)
343	{	601	{
344	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
345		603
346	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
347	{	605	{
348	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
349	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	607	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
350	exit (1);	608	exit (EXIT_FAILURE);
351	}	609	}
352		610
353	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
354		612
355	fclose (f);	613	fclose (f);
356	}	614	}
357	else	615	else
358	{	616	{
359	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	617	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
360		618
361	if (need_keys)	619	if (need_keys)
362	exit (1);	620	exit (EXIT_FAILURE);
		621	}
		622
		623	if (need_keys && ::thisnode
		624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		625	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		627	{
		628	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		629	exit (EXIT_FAILURE);
363	}	630	}
364		631
365	free (fname);	632	free (fname);
366	}
367		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
368	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
369	{	640	{
370	char *fname;	641	char *fname;
371		642
372	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
373		644
…		…
390	printf (_("MTU: %d\n"), mtu);	661	printf (_("MTU: %d\n"), mtu);
391	printf (_("rekeying interval: %d\n"), rekey);	662	printf (_("rekeying interval: %d\n"), rekey);
392	printf (_("keepalive interval: %d\n"), keepalive);	663	printf (_("keepalive interval: %d\n"), keepalive);
393	printf (_("interface: %s\n"), ifname);	664	printf (_("interface: %s\n"), ifname);
394	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	665	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
395	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	666	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
396	printf ("\n");	667	printf ("\n");
397		668
398	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	669	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
399	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	670	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
400		671
…		…
402	(*i)->print ();	673	(*i)->print ();
403		674
404	printf ("\n");	675	printf ("\n");
405	}	676	}
406		677
407	void	678	configuration::configuration ()
408	conf_node::print ()
409	{	679	{
410	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	680	asprintf (&confbase, "%s/gvpe", CONFDIR);
411	id,
412	id >> 8, id & 0xff,
413	compress ? 'Y' : 'N',
414	connectmode == C_ONDEMAND ? "ondemand" :
415	connectmode == C_NEVER ? "never" :
416	connectmode == C_ALWAYS ? "always" : "",
417	nodename,
418	hostname ? hostname : "",
419	hostname ? ":" : "",
420	hostname ? udp_port : 0
421	);
422	}
423		681
		682	init ();
		683	}
		684
		685	configuration::~configuration ()
		686	{
		687	cleanup ();
		688	}
		689

Diff Legend

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

Comparing gvpe/src/conf.C (file contents): Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs. Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC