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

Comparing gvpe/src/conf.C (file contents):
Revision 1.22 by pcg, Thu Jan 29 18:55:10 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>
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	char *pidfilename;
50		59
51	struct configuration conf;	60	struct configuration conf;
52		61
		62	u8
53	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
54	{	64	{
55	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
56	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
57	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
58	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		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";
		81	if (protocol & PROT_DNSv4 ) return "dns";
69		82
70	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;
71	}	108	}
72		109
73	void	110	void
74	conf_node::print ()	111	conf_node::print ()
75	{	112	{
76	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",
77	id,	114	id,
78	id >> 8, id & 0xff,	115	id >> 8, id & 0xff,
79	compress ? 'Y' : 'N',	116	compress ? 'Y' : 'N',
80	connectmode == C_ONDEMAND ? "ondemand" :	117	connectmode == C_ONDEMAND ? "ondemand"
81	connectmode == C_NEVER ? "never" :	118	: connectmode == C_NEVER ? "never"
82	connectmode == C_ALWAYS ? "always" : "",	119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
83	nodename,	122	nodename,
84	hostname ? hostname : "",	123	hostname ? hostname : "",
85	hostname ? ":" : "",	124	hostname ? ":" : "",
86	hostname ? udp_port : 0	125	hostname ? udp_port : 0
87	);	126	);
88	}	127	}
89		128
90	conf_node::~conf_node ()	129	conf_node::~conf_node ()
91	{	130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
92	if (rsa_key)	134	if (rsa_key)
93	RSA_free (rsa_key);	135	RSA_free (rsa_key);
94		136
95	free (nodename);	137	free (nodename);
96	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
97	}	145	}
98		146
		147	void
99	void configuration::init ()	148	configuration::init ()
100	{	149	{
101	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
102		151
103	mtu = DEFAULT_MTU;	152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
104	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
105	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
106	llevel = L_INFO;	156	llevel = L_INFO;
107	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
108	#if ENABLE_ICMP	158	#if ENABLE_ICMP
109	icmp_type = ICMP_ECHOREPLY;	159	icmp_type = ICMP_ECHOREPLY;
110	#endif	160	#endif
111		161
112	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
113	default_node.tcp_port = DEFAULT_UDPPORT;	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
114	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
115	default_node.compress = true;	165	default_node.compress = true;
116	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
117	}	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 ("");
118		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
119	void configuration::cleanup()	187	configuration::cleanup ()
120	{	188	{
121	if (rsa_key)	189	if (rsa_key)
122	RSA_free (rsa_key);	190	RSA_free (rsa_key);
123		191
124	rsa_key = 0;	192	rsa_key = 0;
125		193
126	free (ifname); ifname = 0;	194	free (pidfilename); pidfilename = 0;
		195	free (ifname); ifname = 0;
127	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
128	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
129	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
130	#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;
131	}	207	}
132		208
133	void	209	void
134	configuration::clear_config ()	210	configuration::clear ()
135	{	211	{
136	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)
137	delete *i;	213	delete *i;
138		214
139	nodes.clear ();	215	nodes.clear ();
140		216
141	cleanup ();	217	cleanup ();
142	init ();	218	init ();
143	}	219	}
144		220
145	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
146	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
147	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
148	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
149	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
150	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
151	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
152	else \	228	else \
153	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
154	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
155	name, var, fname, lineno);
156		231
157	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)
158	{	560	{
159	char *fname;	561	char *fname;
160	FILE *f;	562	FILE *f;
161		563
162	clear_config ();	564	conf.clear ();
163		565
164	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
165	f = fopen (fname, "r");	567	f = fopen (fname, "r");
166		568
167	if (f)	569	if (f)
168	{	570	{
169	char line[16384];	571	char line[16384];
170	int lineno = 0;	572	int lineno = 0;
171	char var, val;	573	node = &conf.default_node;
172	conf_node *node = &default_node;
173		574
174	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
175	{	576	{
176	lineno++;	577	lineno++;
177		578
178	{	579	const char *warn = parse_line (line);
179	char *end = line + strlen (line);
180		580
181	while (*end < ' ' && end >= line)	581	if (warn)
182	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
183
184	*++end = 0;
185	}
186
187	char *tok = line;
188
189	retry:
190	var = strtok (tok, "\t =");
191	tok = 0;
192
193	if (!var \|\| !var[0])
194	continue; /* no tokens on this line */
195
196	if (var[0] == '#')
197	continue; /* comment: ignore */
198
199	val = strtok (NULL, "\t\n\r =");
200
201	if (!val \|\| val[0] == '#')
202	{
203	slog (L_WARN,
204	_("no value for variable `%s', at '%s' line %d"),
205	var, fname, lineno);
206	break;
207	}
208
209	if (!strcmp (var, "on"))
210	{
211	if (!::thisnode
212	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
213	\|\| !strcmp (val, ::thisnode))
214	goto retry;
215
216	continue;
217	}
218
219	// truly global
220	if (!strcmp (var, "loglevel"))
221	{
222	loglevel l = string_to_loglevel (val);
223
224	if (l != L_NONE)
225	llevel = l;
226	else
227	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
228	}
229	else if (!strcmp (var, "ip-proto"))
230	ip_proto = atoi (val);
231	else if (!strcmp (var, "icmp-type"))
232	{
233	#if ENABLE_ICMP
234	icmp_type = atoi (val);
235	#endif
236	}
237
238	// per config
239	else if (!strcmp (var, "node"))
240	{
241	default_node.id++;
242
243	node = new conf_node (default_node);
244
245	nodes.push_back (node);
246
247	node->nodename = strdup (val);
248
249	{
250	char *fname;
251	FILE *f;
252
253	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
254
255	f = fopen (fname, "r");
256	if (f)
257	{
258	node->rsa_key = RSA_new ();
259
260	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
261	{
262	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
263	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
264	exit (EXIT_FAILURE);
265	}
266
267	require (RSA_blinding_on (node->rsa_key, 0));
268
269	fclose (f);
270	}
271	else
272	{
273	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
274
275	if (need_keys)
276	exit (EXIT_FAILURE);
277	}
278
279	free (fname);
280	}
281
282	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
283	thisnode = node;
284	}
285	else if (!strcmp (var, "private-key"))
286	prikeyfile = strdup (val);
287	else if (!strcmp (var, "ifpersist"))
288	{
289	parse_bool (ifpersist, "ifpersist", true, false);
290	}
291	else if (!strcmp (var, "ifname"))
292	ifname = strdup (val);
293	else if (!strcmp (var, "rekey"))
294	rekey = atoi (val);
295	else if (!strcmp (var, "keepalive"))
296	keepalive = atoi (val);
297	else if (!strcmp (var, "mtu"))
298	mtu = atoi (val);
299	else if (!strcmp (var, "if-up"))
300	script_if_up = strdup (val);
301	else if (!strcmp (var, "node-up"))
302	script_node_up = strdup (val);
303	else if (!strcmp (var, "node-down"))
304	script_node_down = strdup (val);
305	else if (!strcmp (var, "http-proxy-host"))
306	{
307	#if ENABLE_HTTP_PROXY
308	proxy_host = strdup (val);
309	#endif
310	}
311	else if (!strcmp (var, "http-proxy-port"))
312	{
313	#if ENABLE_HTTP_PROXY
314	proxy_port = atoi (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-auth"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
321	#endif
322	}
323
324	/* node-specific, non-defaultable */
325	else if (node != &default_node && !strcmp (var, "hostname"))
326	{
327	free (node->hostname);
328	node->hostname = strdup (val);
329	}
330
331	/* node-specific, defaultable */
332	else if (!strcmp (var, "udp-port"))
333	node->udp_port = atoi (val);
334	else if (!strcmp (var, "tcp-port"))
335	node->tcp_port = atoi (val);
336	else if (!strcmp (var, "router-priority"))
337	node->routerprio = atoi (val);
338	else if (!strcmp (var, "connect"))
339	{
340	if (!strcmp (val, "ondemand"))
341	node->connectmode = conf_node::C_ONDEMAND;
342	else if (!strcmp (val, "never"))
343	node->connectmode = conf_node::C_NEVER;
344	else if (!strcmp (val, "always"))
345	node->connectmode = conf_node::C_ALWAYS;
346	else if (!strcmp (val, "disabled"))
347	node->connectmode = conf_node::C_DISABLED;
348	else
349	slog (L_WARN,
350	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
351	var, fname, lineno);
352	}
353	else if (!strcmp (var, "inherit-tos"))
354	{
355	parse_bool (node->inherit_tos, "inherit-tos", true, false);
356	}
357	else if (!strcmp (var, "compress"))
358	{
359	parse_bool (node->compress, "compress", true, false);
360	}
361	// all these bool options really really cost a lot of executable size!
362	else if (!strcmp (var, "enable-tcp"))
363	{
364	#if ENABLE_TCP
365	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
366	#endif
367	}
368	else if (!strcmp (var, "enable-icmp"))
369	{
370	#if ENABLE_ICMP
371	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
372	#endif
373	}
374	else if (!strcmp (var, "enable-udp"))
375	{
376	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
377	}
378	else if (!strcmp (var, "enable-rawip"))
379	{
380	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
381	}
382
383	// unknown or misplaced
384	else
385	slog (L_WARN,
386	_("unknown or misplaced variable `%s', at '%s' line %d"),
387	var, fname, lineno);
388	}	583	}
389		584
390	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
391	}	588	}
392	else	589	else
393	{	590	{
394	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));
395	exit (EXIT_FAILURE);	592	exit (EXIT_FAILURE);
396	}	593	}
397		594
398	free (fname);	595	free (fname);
399		596
400	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
401		598
402	f = fopen (fname, "r");	599	f = fopen (fname, "r");
403	if (f)	600	if (f)
404	{	601	{
405	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
406		603
407	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
408	{	605	{
409	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
410	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));
411	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
412	}	609	}
413		610
414	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
415		612
416	fclose (f);	613	fclose (f);
417	}	614	}
418	else	615	else
419	{	616	{
…		…
421		618
422	if (need_keys)	619	if (need_keys)
423	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
424	}	621	}
425		622
		623	if (need_keys && ::thisnode
426	if (need_keys && rsa_key && thisnode && thisnode->rsa_key)	624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
427	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
428	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
429	{	627	{
430	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);
431	exit (EXIT_FAILURE);	629	exit (EXIT_FAILURE);
432	}	630	}
433		631
434	free (fname);	632	free (fname);
435	}
436		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
437	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
438	{	640	{
439	char *fname;	641	char *fname;
440		642
441	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
442		644
…		…
473	printf ("\n");	675	printf ("\n");
474	}	676	}
475		677
476	configuration::configuration ()	678	configuration::configuration ()
477	{	679	{
		680	asprintf (&confbase, "%s/gvpe", CONFDIR);
		681
478	init ();	682	init ();
479	}	683	}
480		684
481	configuration::~configuration ()	685	configuration::~configuration ()
482	{	686	{
483	cleanup ();	687	cleanup ();
484	}	688	}
485		689
486

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Comparing gvpe/src/conf.C (file contents): Revision 1.22 by pcg, Thu Jan 29 18:55:10 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 1.22 by pcg, Thu Jan 29 18:55:10 2004 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC