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

Comparing gvpe/src/conf.C (file contents):
Revision 1.27 by pcg, Fri Jun 11 15:56:31 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	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 ("");
		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
119		182
120	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
121	}	184	}
122		185
		186	void
123	void configuration::cleanup()	187	configuration::cleanup ()
124	{	188	{
125	if (rsa_key)	189	if (rsa_key)
126	RSA_free (rsa_key);	190	RSA_free (rsa_key);
127		191
128	rsa_key = 0;	192	rsa_key = 0;
129		193
130	free (pidfilename); pidfilename = 0;	194	free (pidfilename); pidfilename = 0;
131	free (ifname); ifname = 0;	195	free (ifname); ifname = 0;
132	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
133	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
134	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;
135	#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;
136	}	207	}
137		208
138	void	209	void
139	configuration::clear_config ()	210	configuration::clear ()
140	{	211	{
141	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)
142	delete *i;	213	delete *i;
143		214
144	nodes.clear ();	215	nodes.clear ();
145		216
146	cleanup ();	217	cleanup ();
147	init ();	218	init ();
148	}	219	}
149		220
150	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
151	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
152	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
153	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
154	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
155	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
156	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
157	else \	228	else \
158	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
159	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
160	name, var, fname, lineno);
161		231
162	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)
163	{	560	{
164	char *fname;	561	char *fname;
165	FILE *f;	562	FILE *f;
166		563
167	clear_config ();	564	conf.clear ();
168		565
169	asprintf (&fname, "%s/gvpe.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
170	f = fopen (fname, "r");	567	f = fopen (fname, "r");
171		568
172	if (f)	569	if (f)
173	{	570	{
174	char line[16384];	571	char line[16384];
175	int lineno = 0;	572	int lineno = 0;
176	char var, val;	573	node = &conf.default_node;
177	conf_node *node = &default_node;
178		574
179	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
180	{	576	{
181	lineno++;	577	lineno++;
182		578
183	{	579	const char *warn = parse_line (line);
184	char *end = line + strlen (line);
185		580
186	while (*end < ' ' && end >= line)	581	if (warn)
187	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
188
189	*++end = 0;
190	}
191
192	char *tok = line;
193
194	retry:
195	var = strtok (tok, "\t =");
196	tok = 0;
197
198	if (!var \|\| !var[0])
199	continue; /* no tokens on this line */
200
201	if (var[0] == '#')
202	continue; /* comment: ignore */
203
204	val = strtok (NULL, "\t\n\r =");
205
206	if (!val \|\| val[0] == '#')
207	{
208	slog (L_WARN,
209	_("no value for variable `%s', at '%s' line %d"),
210	var, fname, lineno);
211	break;
212	}
213
214	if (!strcmp (var, "on"))
215	{
216	if (!::thisnode
217	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
218	\|\| !strcmp (val, ::thisnode))
219	goto retry;
220
221	continue;
222	}
223
224	// truly global
225	if (!strcmp (var, "loglevel"))
226	{
227	loglevel l = string_to_loglevel (val);
228
229	if (l != L_NONE)
230	llevel = l;
231	else
232	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
233	}
234	else if (!strcmp (var, "ip-proto"))
235	ip_proto = atoi (val);
236	else if (!strcmp (var, "icmp-type"))
237	{
238	#if ENABLE_ICMP
239	icmp_type = atoi (val);
240	#endif
241	}
242
243	// per config
244	else if (!strcmp (var, "node"))
245	{
246	default_node.id++;
247
248	node = new conf_node (default_node);
249
250	nodes.push_back (node);
251
252	node->nodename = strdup (val);
253
254	{
255	char *fname;
256	FILE *f;
257
258	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
259
260	f = fopen (fname, "r");
261	if (f)
262	{
263	node->rsa_key = RSA_new ();
264
265	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
266	{
267	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
268	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
269	exit (EXIT_FAILURE);
270	}
271
272	require (RSA_blinding_on (node->rsa_key, 0));
273
274	fclose (f);
275	}
276	else
277	{
278	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
279
280	if (need_keys)
281	exit (EXIT_FAILURE);
282	}
283
284	free (fname);
285	}
286
287	if (::thisnode && !strcmp (node->nodename, ::thisnode))
288	thisnode = node;
289	}
290	else if (!strcmp (var, "private-key"))
291	free (prikeyfile), prikeyfile = strdup (val);
292	else if (!strcmp (var, "ifpersist"))
293	{
294	parse_bool (ifpersist, "ifpersist", true, false);
295	}
296	else if (!strcmp (var, "ifname"))
297	free (ifname), ifname = strdup (val);
298	else if (!strcmp (var, "rekey"))
299	rekey = atoi (val);
300	else if (!strcmp (var, "keepalive"))
301	keepalive = atoi (val);
302	else if (!strcmp (var, "mtu"))
303	mtu = atoi (val);
304	else if (!strcmp (var, "if-up"))
305	free (script_if_up), script_if_up = strdup (val);
306	else if (!strcmp (var, "node-up"))
307	free (script_node_up), script_node_up = strdup (val);
308	else if (!strcmp (var, "node-down"))
309	free (script_node_down), script_node_down = strdup (val);
310	else if (!strcmp (var, "pid-file"))
311	free (pidfilename), pidfilename = strdup (val);
312	else if (!strcmp (var, "http-proxy-host"))
313	{
314	#if ENABLE_HTTP_PROXY
315	free (proxy_host), proxy_host = strdup (val);
316	#endif
317	}
318	else if (!strcmp (var, "http-proxy-port"))
319	{
320	#if ENABLE_HTTP_PROXY
321	proxy_port = atoi (val);
322	#endif
323	}
324	else if (!strcmp (var, "http-proxy-auth"))
325	{
326	#if ENABLE_HTTP_PROXY
327	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
328	#endif
329	}
330
331	/* node-specific, non-defaultable */
332	else if (node != &default_node && !strcmp (var, "hostname"))
333	free (node->hostname), node->hostname = strdup (val);
334
335	/* node-specific, defaultable */
336	else if (!strcmp (var, "udp-port"))
337	node->udp_port = atoi (val);
338	else if (!strcmp (var, "tcp-port"))
339	node->tcp_port = atoi (val);
340	else if (!strcmp (var, "dns-port"))
341	node->dns_port = atoi (val);
342	else if (!strcmp (var, "router-priority"))
343	node->routerprio = atoi (val);
344	else if (!strcmp (var, "max-retry"))
345	node->max_retry = atoi (val);
346	else if (!strcmp (var, "connect"))
347	{
348	if (!strcmp (val, "ondemand"))
349	node->connectmode = conf_node::C_ONDEMAND;
350	else if (!strcmp (val, "never"))
351	node->connectmode = conf_node::C_NEVER;
352	else if (!strcmp (val, "always"))
353	node->connectmode = conf_node::C_ALWAYS;
354	else if (!strcmp (val, "disabled"))
355	node->connectmode = conf_node::C_DISABLED;
356	else
357	slog (L_WARN,
358	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
359	var, fname, lineno);
360	}
361	else if (!strcmp (var, "inherit-tos"))
362	{
363	parse_bool (node->inherit_tos, "inherit-tos", true, false);
364	}
365	else if (!strcmp (var, "compress"))
366	{
367	parse_bool (node->compress, "compress", true, false);
368	}
369	// all these bool options really really cost a lot of executable size!
370	else if (!strcmp (var, "enable-tcp"))
371	{
372	#if ENABLE_TCP
373	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
374	#endif
375	}
376	else if (!strcmp (var, "enable-icmp"))
377	{
378	#if ENABLE_ICMP
379	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
380	#endif
381	}
382	else if (!strcmp (var, "enable-dns"))
383	{
384	#if ENABLE_DNS
385	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
386	#endif
387	}
388	else if (!strcmp (var, "enable-udp"))
389	{
390	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
391	}
392	else if (!strcmp (var, "enable-rawip"))
393	{;
394	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
395	}
396
397	// unknown or misplaced
398	else
399	slog (L_WARN,
400	_("unknown or misplaced variable `%s', at '%s' line %d"),
401	var, fname, lineno);
402	}	583	}
403		584
404	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
405	}	588	}
406	else	589	else
407	{	590	{
408	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));
409	exit (EXIT_FAILURE);	592	exit (EXIT_FAILURE);
410	}	593	}
411		594
412	free (fname);	595	free (fname);
413		596
414	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
415		598
416	f = fopen (fname, "r");	599	f = fopen (fname, "r");
417	if (f)	600	if (f)
418	{	601	{
419	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
420		603
421	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
422	{	605	{
423	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
424	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));
425	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
426	}	609	}
427		610
428	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
429		612
430	fclose (f);	613	fclose (f);
431	}	614	}
432	else	615	else
433	{	616	{
…		…
436	if (need_keys)	619	if (need_keys)
437	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
438	}	621	}
439		622
440	if (need_keys && ::thisnode	623	if (need_keys && ::thisnode
441	&& rsa_key && thisnode && thisnode->rsa_key)	624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
442	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
443	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
444	{	627	{
445	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);
446	exit (EXIT_FAILURE);	629	exit (EXIT_FAILURE);
447	}	630	}
448		631
449	free (fname);	632	free (fname);
450	}
451		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
452	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
453	{	640	{
454	char *fname;	641	char *fname;
455		642
456	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
457		644
…		…
498	configuration::~configuration ()	685	configuration::~configuration ()
499	{	686	{
500	cleanup ();	687	cleanup ();
501	}	688	}
502		689
503

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Comparing gvpe/src/conf.C (file contents): Revision 1.27 by pcg, Fri Jun 11 15:56:31 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 1.27 by pcg, Fri Jun 11 15:56:31 2004 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC