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

Comparing gvpe/src/conf.C (file contents):
Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 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) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4		4
5	This file is part of GVPE.	5	This file is part of GVPE.
6		6
7	GVPE is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
8	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
9	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
10	(at your option) any later version.	10	option) any later version.
11		11
12	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
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15	GNU General Public License for more details.	15	Public License for more details.
16		16
17	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
18	along with gvpe; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
19	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.
20	*/	30	*/
21		31
22	#include "config.h"	32	#include "config.h"
23		33
24	#include <cstdio>	34	#include <cstdio>
47	char *thisnode;	57	char *thisnode;
48	char *identname;	58	char *identname;
49		59
50	struct configuration conf;	60	struct configuration conf;
51		61
		62	u8
52	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
53	{	64	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		70
60	return 0;	71	return 0;
61	}	72	}
62		73
		74	const char *
63	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
64	{	76	{
65	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	81	if (protocol & PROT_DNSv4 ) return "dns";
70		82
71	return "<unknown>";	83	return "<unknown>";
72	}	84	}
73		85
		86	static bool
		87	match_list (const vector<const char > &list, const char str)
		88	{
		89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
		90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
		94
		95	return false;
		96	}
		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
74	void	110	void
75	conf_node::print ()	111	conf_node::print ()
76	{	112	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	113	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",
78	id,	114	id,
79	id >> 8, id & 0xff,	115	id >> 8, id & 0xff,
80	compress ? 'Y' : 'N',	116	compress ? 'Y' : 'N',
81	connectmode == C_ONDEMAND ? "ondemand" :	117	connectmode == C_ONDEMAND ? "ondemand"
82	connectmode == C_NEVER ? "never" :	118	: connectmode == C_NEVER ? "never"
83	connectmode == C_ALWAYS ? "always" : "",	119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
84	nodename,	122	nodename,
85	hostname ? hostname : "",	123	hostname ? hostname : "",
86	hostname ? ":" : "",	124	hostname ? ":" : "",
87	hostname ? udp_port : 0	125	hostname ? udp_port : 0
88	);	126	);
89	}	127	}
90		128
91	conf_node::~conf_node ()	129	conf_node::~conf_node ()
92	{	130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
93	if (rsa_key)	134	if (rsa_key)
94	RSA_free (rsa_key);	135	RSA_free (rsa_key);
95		136
96	free (nodename);	137	free (nodename);
97	free (hostname);	138	free (hostname);
		139	free (if_up_data);
98	#if ENABLE_DNS	140	#if ENABLE_DNS
99	free (domain);	141	free (domain);
100	free (dns_hostname);	142	free (dns_hostname);
101	#endif	143	#endif
		144	#endif
102	}	145	}
103		146
		147	void
104	void configuration::init ()	148	configuration::init ()
105	{	149	{
106	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
107		151
108	mtu = DEFAULT_MTU;	152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
109	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	156	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
113	#if ENABLE_ICMP	158	#if ENABLE_ICMP
…		…
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	165	default_node.compress = true;
121	default_node.protocols = 0;	166	default_node.protocols = 0;
122	default_node.max_retry = DEFAULT_MAX_RETRY;	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 ("");
123		171
124	#if ENABLE_DNS	172	#if ENABLE_DNS
125	default_node.dns_port = 0; // default is 0 == client	173	default_node.dns_port = 0; // default is 0 == client
		174
126	dns_forw_host = strdup ("127.0.0.1");	175	dns_forw_host = strdup ("127.0.0.1");
127	dns_forw_port = 53;	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;
128	#endif	181	#endif
129		182
130	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
131	}	184	}
132		185
		186	void
133	void configuration::cleanup()	187	configuration::cleanup ()
134	{	188	{
135	if (rsa_key)	189	if (rsa_key)
136	RSA_free (rsa_key);	190	RSA_free (rsa_key);
137		191
138	rsa_key = 0;	192	rsa_key = 0;
139		193
140	free (pidfilename); pidfilename = 0;	194	free (pidfilename); pidfilename = 0;
141	free (ifname); ifname = 0;	195	free (ifname); ifname = 0;
142	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
143	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
144	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
145	#endif	199	#endif
146	#if ENABLE_DNS	200	#if ENABLE_DNS
147	free (dns_forw_host); dns_forw_host = 0;	201	free (dns_forw_host); dns_forw_host = 0;
148	#endif	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;
149	}	207	}
150		208
151	void	209	void
152	configuration::clear_config ()	210	configuration::clear ()
153	{	211	{
154	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)
155	delete *i;	213	delete *i;
156		214
157	nodes.clear ();	215	nodes.clear ();
158		216
159	cleanup ();	217	cleanup ();
160	init ();	218	init ();
161	}	219	}
162		220
163	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
164	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
165	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
166	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
167	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
168	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
169	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
170	else \	228	else \
171	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
172	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
173	name, var, fname, lineno);
174		231
175	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)
176	{	560	{
177	char *fname;	561	char *fname;
178	FILE *f;	562	FILE *f;
179		563
180	clear_config ();	564	conf.clear ();
181		565
182	asprintf (&fname, "%s/gvpe.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
183	f = fopen (fname, "r");	567	f = fopen (fname, "r");
184		568
185	if (f)	569	if (f)
186	{	570	{
187	char line[16384];	571	char line[16384];
188	int lineno = 0;	572	int lineno = 0;
189	char var, val;	573	node = &conf.default_node;
190	conf_node *node = &default_node;
191		574
192	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
193	{	576	{
194	lineno++;	577	lineno++;
195		578
196	{	579	const char *warn = parse_line (line);
197	char *end = line + strlen (line);
198		580
199	while (*end < ' ' && end >= line)	581	if (warn)
200	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
201
202	*++end = 0;
203	}
204
205	char *tok = line;
206
207	retry:
208	var = strtok (tok, "\t =");
209	tok = 0;
210
211	if (!var \|\| !var[0])
212	continue; /* no tokens on this line */
213
214	if (var[0] == '#')
215	continue; /* comment: ignore */
216
217	val = strtok (NULL, "\t\n\r =");
218
219	if (!val \|\| val[0] == '#')
220	{
221	slog (L_WARN,
222	_("no value for variable `%s', at '%s' line %d, skipping."),
223	var, fname, lineno);
224	continue;
225	}
226
227	if (!strcmp (var, "on"))
228	{
229	if (!::thisnode
230	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
231	\|\| !strcmp (val, ::thisnode))
232	goto retry;
233
234	continue;
235	}
236
237	// truly global
238	if (!strcmp (var, "loglevel"))
239	{
240	loglevel l = string_to_loglevel (val);
241
242	if (l != L_NONE)
243	llevel = l;
244	else
245	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
246	}
247	else if (!strcmp (var, "ip-proto"))
248	ip_proto = atoi (val);
249	else if (!strcmp (var, "icmp-type"))
250	{
251	#if ENABLE_ICMP
252	icmp_type = atoi (val);
253	#endif
254	}
255
256	// per config
257	else if (!strcmp (var, "node"))
258	{
259	default_node.id++;
260
261	node = new conf_node (default_node);
262
263	nodes.push_back (node);
264
265	node->nodename = strdup (val);
266
267	{
268	char *fname;
269	FILE *f;
270
271	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
272
273	f = fopen (fname, "r");
274	if (f)
275	{
276	node->rsa_key = RSA_new ();
277
278	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
279	{
280	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
281	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
282	exit (EXIT_FAILURE);
283	}
284
285	require (RSA_blinding_on (node->rsa_key, 0));
286
287	fclose (f);
288	}
289	else
290	{
291	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
292
293	if (need_keys)
294	exit (EXIT_FAILURE);
295	}
296
297	free (fname);
298	}
299
300	if (::thisnode && !strcmp (node->nodename, ::thisnode))
301	thisnode = node;
302	}
303	else if (!strcmp (var, "private-key"))
304	free (prikeyfile), prikeyfile = strdup (val);
305	else if (!strcmp (var, "ifpersist"))
306	parse_bool (ifpersist, "ifpersist", true, false);
307	else if (!strcmp (var, "ifname"))
308	free (ifname), ifname = strdup (val);
309	else if (!strcmp (var, "rekey"))
310	rekey = atoi (val);
311	else if (!strcmp (var, "keepalive"))
312	keepalive = atoi (val);
313	else if (!strcmp (var, "mtu"))
314	mtu = atoi (val);
315	else if (!strcmp (var, "if-up"))
316	free (script_if_up), script_if_up = strdup (val);
317	else if (!strcmp (var, "node-up"))
318	free (script_node_up), script_node_up = strdup (val);
319	else if (!strcmp (var, "node-down"))
320	free (script_node_down), script_node_down = strdup (val);
321	else if (!strcmp (var, "pid-file"))
322	free (pidfilename), pidfilename = strdup (val);
323	else if (!strcmp (var, "dns-forw-host"))
324	{
325	#if ENABLE_DNS
326	free (dns_forw_host), dns_forw_host = strdup (val);
327	#endif
328	}
329	else if (!strcmp (var, "dns-forw-port"))
330	{
331	#if ENABLE_DNS
332	dns_forw_port = atoi (val);
333	#endif
334	}
335	else if (!strcmp (var, "http-proxy-host"))
336	{
337	#if ENABLE_HTTP_PROXY
338	free (proxy_host), proxy_host = strdup (val);
339	#endif
340	}
341	else if (!strcmp (var, "http-proxy-port"))
342	{
343	#if ENABLE_HTTP_PROXY
344	proxy_port = atoi (val);
345	#endif
346	}
347	else if (!strcmp (var, "http-proxy-auth"))
348	{
349	#if ENABLE_HTTP_PROXY
350	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
351	#endif
352	}
353
354	/* node-specific, non-defaultable */
355	else if (node != &default_node && !strcmp (var, "hostname"))
356	free (node->hostname), node->hostname = strdup (val);
357
358	/* node-specific, defaultable */
359	else if (!strcmp (var, "udp-port"))
360	node->udp_port = atoi (val);
361	else if (!strcmp (var, "tcp-port"))
362	node->tcp_port = atoi (val);
363	else if (!strcmp (var, "dns-hostname"))
364	{
365	#if ENABLE_DNS
366	free (node->dns_hostname), node->dns_hostname = strdup (val);
367	#endif
368	}
369	else if (!strcmp (var, "dns-port"))
370	{
371	#if ENABLE_DNS
372	node->dns_port = atoi (val);
373	#endif
374	}
375	else if (!strcmp (var, "dns-domain"))
376	{
377	#if ENABLE_DNS
378	free (node->domain), node->domain = strdup (val);
379	#endif
380	}
381	else if (!strcmp (var, "router-priority"))
382	node->routerprio = atoi (val);
383	else if (!strcmp (var, "max-retry"))
384	node->max_retry = atoi (val);
385	else if (!strcmp (var, "connect"))
386	{
387	if (!strcmp (val, "ondemand"))
388	node->connectmode = conf_node::C_ONDEMAND;
389	else if (!strcmp (val, "never"))
390	node->connectmode = conf_node::C_NEVER;
391	else if (!strcmp (val, "always"))
392	node->connectmode = conf_node::C_ALWAYS;
393	else if (!strcmp (val, "disabled"))
394	node->connectmode = conf_node::C_DISABLED;
395	else
396	slog (L_WARN,
397	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
398	var, fname, lineno);
399	}
400	else if (!strcmp (var, "inherit-tos"))
401	parse_bool (node->inherit_tos, "inherit-tos", true, false);
402	else if (!strcmp (var, "compress"))
403	parse_bool (node->compress, "compress", true, false);
404	// all these bool options really really cost a lot of executable size!
405	else if (!strcmp (var, "enable-tcp"))
406	{
407	#if ENABLE_TCP
408	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
409	#endif
410	}
411	else if (!strcmp (var, "enable-icmp"))
412	{
413	#if ENABLE_ICMP
414	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
415	#endif
416	}
417	else if (!strcmp (var, "enable-dns"))
418	{
419	#if ENABLE_DNS
420	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
421	#endif
422	}
423	else if (!strcmp (var, "enable-udp"))
424	{
425	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
426	}
427	else if (!strcmp (var, "enable-rawip"))
428	{
429	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
430	}
431
432	// unknown or misplaced
433	else
434	slog (L_WARN,
435	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
436	var, fname, lineno);
437	}	583	}
438		584
439	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
440	}	588	}
441	else	589	else
442	{	590	{
443	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));
444	exit (EXIT_FAILURE);	592	exit (EXIT_FAILURE);
445	}	593	}
446		594
447	free (fname);	595	free (fname);
448		596
449	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
450		598
451	f = fopen (fname, "r");	599	f = fopen (fname, "r");
452	if (f)	600	if (f)
453	{	601	{
454	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
455		603
456	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
457	{	605	{
458	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
459	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));
460	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
461	}	609	}
462		610
463	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
464		612
465	fclose (f);	613	fclose (f);
466	}	614	}
467	else	615	else
468	{	616	{
…		…
471	if (need_keys)	619	if (need_keys)
472	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
473	}	621	}
474		622
475	if (need_keys && ::thisnode	623	if (need_keys && ::thisnode
476	&& rsa_key && thisnode && thisnode->rsa_key)	624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
477	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	625	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
478	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
479	{	627	{
480	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	628	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
481	exit (EXIT_FAILURE);	629	exit (EXIT_FAILURE);
482	}	630	}
483		631
484	free (fname);	632	free (fname);
485	}
486		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
487	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
488	{	640	{
489	char *fname;	641	char *fname;
490		642
491	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
492		644
…		…
533	configuration::~configuration ()	685	configuration::~configuration ()
534	{	686	{
535	cleanup ();	687	cleanup ();
536	}	688	}
537		689
538

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Comparing gvpe/src/conf.C (file contents): Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 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 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC