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

Comparing gvpe/src/conf.C (file contents):
Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 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>
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	#include <openssl/bn.h>	50	#include <openssl/bn.h>
39		51
40	#include "gettext.h"
41
42	#include "conf.h"	52	#include "conf.h"
43	#include "slog.h"	53	#include "slog.h"
44	#include "util.h"	54	#include "util.h"
45		55
46	char *confbase;	56	char *confbase;
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);
		140	#if ENABLE_DNS
		141	free (domain);
		142	free (dns_hostname);
		143	#endif
		144	#endif
98	}	145	}
99		146
		147	void
100	void configuration::init ()	148	configuration::init ()
101	{	149	{
102	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
103		151
104	mtu = DEFAULT_MTU;	152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
105	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	156	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
109	#if ENABLE_ICMP	158	#if ENABLE_ICMP
…		…
112		161
113	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	165	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
118	}	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 ("");
119		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
120	void configuration::cleanup()	187	configuration::cleanup ()
121	{	188	{
122	if (rsa_key)	189	if (rsa_key)
123	RSA_free (rsa_key);	190	RSA_free (rsa_key);
124		191
125	rsa_key = 0;	192	rsa_key = 0;
126		193
127	free (pidfilename); pidfilename = 0;	194	free (pidfilename); pidfilename = 0;
128	free (ifname); ifname = 0;	195	free (ifname); ifname = 0;
129	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
130	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
131	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
		199	#endif
		200	#if ENABLE_DNS
		201	free (dns_forw_host); dns_forw_host = 0;
132	#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;
133	}	207	}
134		208
135	void	209	void
136	configuration::clear_config ()	210	configuration::clear ()
137	{	211	{
138	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)
139	delete *i;	213	delete *i;
140		214
141	nodes.clear ();	215	nodes.clear ();
142		216
143	cleanup ();	217	cleanup ();
144	init ();	218	init ();
145	}	219	}
146		220
147	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
148	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
149	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
150	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
151	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
152	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
153	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
154	else \	228	else \
155	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
156	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
157	name, var, fname, lineno);
158		231
159	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)
160	{	560	{
161	char *fname;	561	char *fname;
162	FILE *f;	562	FILE *f;
163		563
164	clear_config ();	564	conf.clear ();
165		565
166	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
167	f = fopen (fname, "r");	567	f = fopen (fname, "r");
168		568
169	if (f)	569	if (f)
170	{	570	{
171	char line[16384];	571	char line[16384];
172	int lineno = 0;	572	int lineno = 0;
173	char var, val;	573	node = &conf.default_node;
174	conf_node *node = &default_node;
175		574
176	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
177	{	576	{
178	lineno++;	577	lineno++;
179		578
180	{	579	const char *warn = parse_line (line);
181	char *end = line + strlen (line);
182		580
183	while (*end < ' ' && end >= line)	581	if (warn)
184	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
185
186	*++end = 0;
187	}
188
189	char *tok = line;
190
191	retry:
192	var = strtok (tok, "\t =");
193	tok = 0;
194
195	if (!var \|\| !var[0])
196	continue; /* no tokens on this line */
197
198	if (var[0] == '#')
199	continue; /* comment: ignore */
200
201	val = strtok (NULL, "\t\n\r =");
202
203	if (!val \|\| val[0] == '#')
204	{
205	slog (L_WARN,
206	_("no value for variable `%s', at '%s' line %d"),
207	var, fname, lineno);
208	break;
209	}
210
211	if (!strcmp (var, "on"))
212	{
213	if (!::thisnode
214	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
215	\|\| !strcmp (val, ::thisnode))
216	goto retry;
217
218	continue;
219	}
220
221	// truly global
222	if (!strcmp (var, "loglevel"))
223	{
224	loglevel l = string_to_loglevel (val);
225
226	if (l != L_NONE)
227	llevel = l;
228	else
229	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
230	}
231	else if (!strcmp (var, "ip-proto"))
232	ip_proto = atoi (val);
233	else if (!strcmp (var, "icmp-type"))
234	{
235	#if ENABLE_ICMP
236	icmp_type = atoi (val);
237	#endif
238	}
239
240	// per config
241	else if (!strcmp (var, "node"))
242	{
243	default_node.id++;
244
245	node = new conf_node (default_node);
246
247	nodes.push_back (node);
248
249	node->nodename = strdup (val);
250
251	{
252	char *fname;
253	FILE *f;
254
255	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
256
257	f = fopen (fname, "r");
258	if (f)
259	{
260	node->rsa_key = RSA_new ();
261
262	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
263	{
264	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
265	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
266	exit (EXIT_FAILURE);
267	}
268
269	require (RSA_blinding_on (node->rsa_key, 0));
270
271	fclose (f);
272	}
273	else
274	{
275	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
276
277	if (need_keys)
278	exit (EXIT_FAILURE);
279	}
280
281	free (fname);
282	}
283
284	if (::thisnode && !strcmp (node->nodename, ::thisnode))
285	thisnode = node;
286	}
287	else if (!strcmp (var, "private-key"))
288	free (prikeyfile), prikeyfile = strdup (val);
289	else if (!strcmp (var, "ifpersist"))
290	{
291	parse_bool (ifpersist, "ifpersist", true, false);
292	}
293	else if (!strcmp (var, "ifname"))
294	free (ifname), ifname = strdup (val);
295	else if (!strcmp (var, "rekey"))
296	rekey = atoi (val);
297	else if (!strcmp (var, "keepalive"))
298	keepalive = atoi (val);
299	else if (!strcmp (var, "mtu"))
300	mtu = atoi (val);
301	else if (!strcmp (var, "if-up"))
302	free (script_if_up), script_if_up = strdup (val);
303	else if (!strcmp (var, "node-up"))
304	free (script_node_up), script_node_up = strdup (val);
305	else if (!strcmp (var, "node-down"))
306	free (script_node_down), script_node_down = strdup (val);
307	else if (!strcmp (var, "pid-file"))
308	free (pidfilename), pidfilename = strdup (val);
309	else if (!strcmp (var, "http-proxy-host"))
310	{
311	#if ENABLE_HTTP_PROXY
312	free (proxy_host), proxy_host = strdup (val);
313	#endif
314	}
315	else if (!strcmp (var, "http-proxy-port"))
316	{
317	#if ENABLE_HTTP_PROXY
318	proxy_port = atoi (val);
319	#endif
320	}
321	else if (!strcmp (var, "http-proxy-auth"))
322	{
323	#if ENABLE_HTTP_PROXY
324	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
325	#endif
326	}
327
328	/* node-specific, non-defaultable */
329	else if (node != &default_node && !strcmp (var, "hostname"))
330	free (node->hostname), node->hostname = strdup (val);
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "dns-port"))
338	node->dns_port = atoi (val);
339	else if (!strcmp (var, "router-priority"))
340	node->routerprio = atoi (val);
341	else if (!strcmp (var, "connect"))
342	{
343	if (!strcmp (val, "ondemand"))
344	node->connectmode = conf_node::C_ONDEMAND;
345	else if (!strcmp (val, "never"))
346	node->connectmode = conf_node::C_NEVER;
347	else if (!strcmp (val, "always"))
348	node->connectmode = conf_node::C_ALWAYS;
349	else if (!strcmp (val, "disabled"))
350	node->connectmode = conf_node::C_DISABLED;
351	else
352	slog (L_WARN,
353	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
354	var, fname, lineno);
355	}
356	else if (!strcmp (var, "inherit-tos"))
357	{
358	parse_bool (node->inherit_tos, "inherit-tos", true, false);
359	}
360	else if (!strcmp (var, "compress"))
361	{
362	parse_bool (node->compress, "compress", true, false);
363	}
364	// all these bool options really really cost a lot of executable size!
365	else if (!strcmp (var, "enable-tcp"))
366	{
367	#if ENABLE_TCP
368	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
369	#endif
370	}
371	else if (!strcmp (var, "enable-icmp"))
372	{
373	#if ENABLE_ICMP
374	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
375	#endif
376	}
377	else if (!strcmp (var, "enable-dns"))
378	{
379	#if ENABLE_DNS
380	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
381	#endif
382	}
383	else if (!strcmp (var, "enable-udp"))
384	{
385	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
386	}
387	else if (!strcmp (var, "enable-rawip"))
388	{;
389	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
390	}
391
392	// unknown or misplaced
393	else
394	slog (L_WARN,
395	_("unknown or misplaced variable `%s', at '%s' line %d"),
396	var, fname, lineno);
397	}	583	}
398		584
399	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
400	}	588	}
401	else	589	else
402	{	590	{
403	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));
404	exit (EXIT_FAILURE);	592	exit (EXIT_FAILURE);
405	}	593	}
406		594
407	free (fname);	595	free (fname);
408		596
409	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
410		598
411	f = fopen (fname, "r");	599	f = fopen (fname, "r");
412	if (f)	600	if (f)
413	{	601	{
414	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
415		603
416	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
417	{	605	{
418	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
419	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));
420	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
421	}	609	}
422		610
423	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
424		612
425	fclose (f);	613	fclose (f);
426	}	614	}
427	else	615	else
428	{	616	{
…		…
431	if (need_keys)	619	if (need_keys)
432	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
433	}	621	}
434		622
435	if (need_keys && ::thisnode	623	if (need_keys && ::thisnode
436	&& rsa_key && thisnode && thisnode->rsa_key)	624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
437	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
438	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
439	{	627	{
440	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);
441	exit (EXIT_FAILURE);	629	exit (EXIT_FAILURE);
442	}	630	}
443		631
444	free (fname);	632	free (fname);
445	}
446		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
447	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
448	{	640	{
449	char *fname;	641	char *fname;
450		642
451	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
452		644
…		…
483	printf ("\n");	675	printf ("\n");
484	}	676	}
485		677
486	configuration::configuration ()	678	configuration::configuration ()
487	{	679	{
		680	asprintf (&confbase, "%s/gvpe", CONFDIR);
		681
488	init ();	682	init ();
489	}	683	}
490		684
491	configuration::~configuration ()	685	configuration::~configuration ()
492	{	686	{
493	cleanup ();	687	cleanup ();
494	}	688	}
495		689
496

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Comparing gvpe/src/conf.C (file contents): Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs. Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC