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

Comparing gvpe/src/conf.C (file contents):
Revision 1.21 by pcg, Sat Jan 17 01:18:36 2004 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) 2003-2004 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
6	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <cstdio>	34	#include <cstdio>
33		45
34	#include <openssl/err.h>	46	#include <openssl/err.h>
35	#include <openssl/pem.h>	47	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	49	#include <openssl/rand.h>
38		50	#include <openssl/bn.h>
39	#include "gettext.h"
40		51
41	#include "conf.h"	52	#include "conf.h"
42	#include "slog.h"	53	#include "slog.h"
43	#include "util.h"	54	#include "util.h"
44		55
45	char *confbase;	56	char *confbase;
46	char *thisnode;	57	char *thisnode;
47	char *identname;	58	char *identname;
48	char *pidfilename;
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;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58		70
59	return 0;	71	return 0;
60	}	72	}
61		73
		74	const char *
62	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
63	{	76	{
64	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
65	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
66	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
67	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
68		82
69	return "<unknown>";	83	return "<unknown>";
		84	}
		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;
70	}	108	}
71		109
72	void	110	void
73	conf_node::print ()	111	conf_node::print ()
74	{	112	{
75	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",
76	id,	114	id,
77	id >> 8, id & 0xff,	115	id >> 8, id & 0xff,
78	compress ? 'Y' : 'N',	116	compress ? 'Y' : 'N',
79	connectmode == C_ONDEMAND ? "ondemand" :	117	connectmode == C_ONDEMAND ? "ondemand"
80	connectmode == C_NEVER ? "never" :	118	: connectmode == C_NEVER ? "never"
81	connectmode == C_ALWAYS ? "always" : "",	119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
82	nodename,	122	nodename,
83	hostname ? hostname : "",	123	hostname ? hostname : "",
84	hostname ? ":" : "",	124	hostname ? ":" : "",
85	hostname ? udp_port : 0	125	hostname ? udp_port : 0
86	);	126	);
87	}	127	}
88		128
89	conf_node::~conf_node ()	129	conf_node::~conf_node ()
90	{	130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
91	if (rsa_key)	134	if (rsa_key)
92	RSA_free (rsa_key);	135	RSA_free (rsa_key);
93		136
94	free (nodename);	137	free (nodename);
95	free (hostname);	138	free (hostname);
		139	free (if_up_data);
		140	#if ENABLE_DNS
		141	free (domain);
		142	free (dns_hostname);
		143	#endif
		144	#endif
96	}	145	}
97		146
		147	void
98	void configuration::init ()	148	configuration::init ()
99	{	149	{
100	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
101		151
102	mtu = DEFAULT_MTU;	152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
103	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
104	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
105	llevel = L_INFO;	156	llevel = L_INFO;
106	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
107	#if ENABLE_ICMP	158	#if ENABLE_ICMP
108	icmp_type = ICMP_ECHOREPLY;	159	icmp_type = ICMP_ECHOREPLY;
109	#endif	160	#endif
110		161
111	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
112	default_node.tcp_port = DEFAULT_UDPPORT;	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
113	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
114	default_node.compress = true;	165	default_node.compress = true;
115	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
116	}	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 ("");
117		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
118	void configuration::cleanup()	187	configuration::cleanup ()
119	{	188	{
120	if (rsa_key)	189	if (rsa_key)
121	RSA_free (rsa_key);	190	RSA_free (rsa_key);
122		191
123	rsa_key = 0;	192	rsa_key = 0;
124		193
125	free (ifname); ifname = 0;	194	free (pidfilename); pidfilename = 0;
		195	free (ifname); ifname = 0;
126	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
127	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
128	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
129	#endif	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;
130	}	207	}
131		208
132	void	209	void
133	configuration::clear_config ()	210	configuration::clear ()
134	{	211	{
135	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)
136	delete *i;	213	delete *i;
137		214
138	nodes.clear ();	215	nodes.clear ();
139		216
140	cleanup ();	217	cleanup ();
141	init ();	218	init ();
142	}	219	}
143		220
144	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
145	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
146	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
147	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
148	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
149	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
150	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
151	else \	228	else \
152	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
153	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
154	name, var, fname, lineno);
155		231
156	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)
157	{	560	{
158	char *fname;	561	char *fname;
159	FILE *f;	562	FILE *f;
160		563
161	clear_config ();	564	conf.clear ();
162		565
163	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
164	f = fopen (fname, "r");	567	f = fopen (fname, "r");
165		568
166	if (f)	569	if (f)
167	{	570	{
168	char line[16384];	571	char line[16384];
169	int lineno = 0;	572	int lineno = 0;
170	char var, val;	573	node = &conf.default_node;
171	conf_node *node = &default_node;
172		574
173	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
174	{	576	{
175	lineno++;	577	lineno++;
176		578
177	{	579	const char *warn = parse_line (line);
178	char *end = line + strlen (line);
179		580
180	while (*end < ' ' && end >= line)	581	if (warn)
181	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
182
183	*++end = 0;
184	}
185
186	char *tok = line;
187
188	retry:
189	var = strtok (tok, "\t =");
190	tok = 0;
191
192	if (!var \|\| !var[0])
193	continue; /* no tokens on this line */
194
195	if (var[0] == '#')
196	continue; /* comment: ignore */
197
198	val = strtok (NULL, "\t\n\r =");
199
200	if (!val \|\| val[0] == '#')
201	{
202	slog (L_WARN,
203	_("no value for variable `%s', at '%s' line %d"),
204	var, fname, lineno);
205	break;
206	}
207
208	if (!strcmp (var, "on"))
209	{
210	if (!::thisnode
211	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
212	\|\| !strcmp (val, ::thisnode))
213	goto retry;
214
215	continue;
216	}
217
218	// truly global
219	if (!strcmp (var, "loglevel"))
220	{
221	loglevel l = string_to_loglevel (val);
222
223	if (l != L_NONE)
224	llevel = l;
225	else
226	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
227	}
228	else if (!strcmp (var, "ip-proto"))
229	ip_proto = atoi (val);
230	else if (!strcmp (var, "icmp-type"))
231	{
232	#if ENABLE_ICMP
233	icmp_type = atoi (val);
234	#endif
235	}
236
237	// per config
238	else if (!strcmp (var, "node"))
239	{
240	default_node.id++;
241
242	node = new conf_node (default_node);
243
244	nodes.push_back (node);
245
246	node->nodename = strdup (val);
247
248	{
249	char *fname;
250	FILE *f;
251
252	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
253
254	f = fopen (fname, "r");
255	if (f)
256	{
257	node->rsa_key = RSA_new ();
258
259	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
260	{
261	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
262	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
263	exit (1);
264	}
265
266	RSA_blinding_on (node->rsa_key, 0);
267
268	fclose (f);
269	}
270	else
271	{
272	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
273
274	if (need_keys)
275	exit (1);
276	}
277
278	free (fname);
279	}
280
281	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
282	thisnode = node;
283	}
284	else if (!strcmp (var, "private-key"))
285	prikeyfile = strdup (val);
286	else if (!strcmp (var, "ifpersist"))
287	{
288	parse_bool (ifpersist, "ifpersist", true, false);
289	}
290	else if (!strcmp (var, "ifname"))
291	ifname = strdup (val);
292	else if (!strcmp (var, "rekey"))
293	rekey = atoi (val);
294	else if (!strcmp (var, "keepalive"))
295	keepalive = atoi (val);
296	else if (!strcmp (var, "mtu"))
297	mtu = atoi (val);
298	else if (!strcmp (var, "if-up"))
299	script_if_up = strdup (val);
300	else if (!strcmp (var, "node-up"))
301	script_node_up = strdup (val);
302	else if (!strcmp (var, "node-down"))
303	script_node_down = strdup (val);
304	else if (!strcmp (var, "http-proxy-host"))
305	{
306	#if ENABLE_HTTP_PROXY
307	proxy_host = strdup (val);
308	#endif
309	}
310	else if (!strcmp (var, "http-proxy-port"))
311	{
312	#if ENABLE_HTTP_PROXY
313	proxy_port = atoi (val);
314	#endif
315	}
316	else if (!strcmp (var, "http-proxy-auth"))
317	{
318	#if ENABLE_HTTP_PROXY
319	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
320	#endif
321	}
322
323	/* node-specific, non-defaultable */
324	else if (node != &default_node && !strcmp (var, "hostname"))
325	{
326	free (node->hostname);
327	node->hostname = strdup (val);
328	}
329
330	/* node-specific, defaultable */
331	else if (!strcmp (var, "udp-port"))
332	node->udp_port = atoi (val);
333	else if (!strcmp (var, "tcp-port"))
334	node->tcp_port = atoi (val);
335	else if (!strcmp (var, "router-priority"))
336	node->routerprio = atoi (val);
337	else if (!strcmp (var, "connect"))
338	{
339	if (!strcmp (val, "ondemand"))
340	node->connectmode = conf_node::C_ONDEMAND;
341	else if (!strcmp (val, "never"))
342	node->connectmode = conf_node::C_NEVER;
343	else if (!strcmp (val, "always"))
344	node->connectmode = conf_node::C_ALWAYS;
345	else if (!strcmp (val, "disabled"))
346	node->connectmode = conf_node::C_DISABLED;
347	else
348	slog (L_WARN,
349	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
350	var, fname, lineno);
351	}
352	else if (!strcmp (var, "inherit-tos"))
353	{
354	parse_bool (node->inherit_tos, "inherit-tos", true, false);
355	}
356	else if (!strcmp (var, "compress"))
357	{
358	parse_bool (node->compress, "compress", true, false);
359	}
360	// all these bool options really really cost a lot of executable size!
361	else if (!strcmp (var, "enable-tcp"))
362	{
363	#if ENABLE_TCP
364	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
365	#endif
366	}
367	else if (!strcmp (var, "enable-icmp"))
368	{
369	#if ENABLE_ICMP
370	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
371	#endif
372	}
373	else if (!strcmp (var, "enable-udp"))
374	{
375	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
376	}
377	else if (!strcmp (var, "enable-rawip"))
378	{
379	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
380	}
381
382	// unknown or misplaced
383	else
384	slog (L_WARN,
385	_("unknown or misplaced variable `%s', at '%s' line %d"),
386	var, fname, lineno);
387	}	583	}
388		584
389	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
390	}	588	}
391	else	589	else
392	{	590	{
393	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));
394	exit (1);	592	exit (EXIT_FAILURE);
395	}	593	}
396		594
397	free (fname);	595	free (fname);
398		596
399	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
400		598
401	f = fopen (fname, "r");	599	f = fopen (fname, "r");
402	if (f)	600	if (f)
403	{	601	{
404	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
405		603
406	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
407	{	605	{
408	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
409	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));
410	exit (1);	608	exit (EXIT_FAILURE);
411	}	609	}
412		610
413	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
414		612
415	fclose (f);	613	fclose (f);
416	}	614	}
417	else	615	else
418	{	616	{
419	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));
420		618
421	if (need_keys)	619	if (need_keys)
422	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);
423	}	630	}
424		631
425	free (fname);	632	free (fname);
426	}
427		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
428	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
429	{	640	{
430	char *fname;	641	char *fname;
431		642
432	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
433		644
…		…
464	printf ("\n");	675	printf ("\n");
465	}	676	}
466		677
467	configuration::configuration ()	678	configuration::configuration ()
468	{	679	{
		680	asprintf (&confbase, "%s/gvpe", CONFDIR);
		681
469	init ();	682	init ();
470	}	683	}
471		684
472	configuration::~configuration ()	685	configuration::~configuration ()
473	{	686	{
474	cleanup ();	687	cleanup ();
475	}	688	}
476		689
477

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Comparing gvpe/src/conf.C (file contents): Revision 1.21 by pcg, Sat Jan 17 01:18:36 2004 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 1.21 by pcg, Sat Jan 17 01:18:36 2004 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC