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

Comparing gvpe/src/conf.C (file contents):
Revision 1.26 by pcg, Wed May 12 13:32:13 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		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;
		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
119	conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid");	183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
120	}	184	}
121		185
		186	void
122	void configuration::cleanup()	187	configuration::cleanup ()
123	{	188	{
124	if (rsa_key)	189	if (rsa_key)
125	RSA_free (rsa_key);	190	RSA_free (rsa_key);
126		191
127	rsa_key = 0;	192	rsa_key = 0;
128		193
129	free (pidfilename); pidfilename = 0;	194	free (pidfilename); pidfilename = 0;
130	free (ifname); ifname = 0;	195	free (ifname); ifname = 0;
131	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
132	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
133	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
134	#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;
135	}	207	}
136		208
137	void	209	void
138	configuration::clear_config ()	210	configuration::clear ()
139	{	211	{
140	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)
141	delete *i;	213	delete *i;
142		214
143	nodes.clear ();	215	nodes.clear ();
144		216
145	cleanup ();	217	cleanup ();
146	init ();	218	init ();
147	}	219	}
148		220
149	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
150	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
151	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
152	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
153	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
154	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
155	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
156	else \	228	else \
157	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
158	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
159	name, var, fname, lineno);
160		231
161	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)
162	{	560	{
163	char *fname;	561	char *fname;
164	FILE *f;	562	FILE *f;
165		563
166	clear_config ();	564	conf.clear ();
167		565
168	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
169	f = fopen (fname, "r");	567	f = fopen (fname, "r");
170		568
171	if (f)	569	if (f)
172	{	570	{
173	char line[16384];	571	char line[16384];
174	int lineno = 0;	572	int lineno = 0;
175	char var, val;	573	node = &conf.default_node;
176	conf_node *node = &default_node;
177		574
178	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
179	{	576	{
180	lineno++;	577	lineno++;
181		578
182	{	579	const char *warn = parse_line (line);
183	char *end = line + strlen (line);
184		580
185	while (*end < ' ' && end >= line)	581	if (warn)
186	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
187
188	*++end = 0;
189	}
190
191	char *tok = line;
192
193	retry:
194	var = strtok (tok, "\t =");
195	tok = 0;
196
197	if (!var \|\| !var[0])
198	continue; /* no tokens on this line */
199
200	if (var[0] == '#')
201	continue; /* comment: ignore */
202
203	val = strtok (NULL, "\t\n\r =");
204
205	if (!val \|\| val[0] == '#')
206	{
207	slog (L_WARN,
208	_("no value for variable `%s', at '%s' line %d"),
209	var, fname, lineno);
210	break;
211	}
212
213	if (!strcmp (var, "on"))
214	{
215	if (!::thisnode
216	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
217	\|\| !strcmp (val, ::thisnode))
218	goto retry;
219
220	continue;
221	}
222
223	// truly global
224	if (!strcmp (var, "loglevel"))
225	{
226	loglevel l = string_to_loglevel (val);
227
228	if (l != L_NONE)
229	llevel = l;
230	else
231	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
232	}
233	else if (!strcmp (var, "ip-proto"))
234	ip_proto = atoi (val);
235	else if (!strcmp (var, "icmp-type"))
236	{
237	#if ENABLE_ICMP
238	icmp_type = atoi (val);
239	#endif
240	}
241
242	// per config
243	else if (!strcmp (var, "node"))
244	{
245	default_node.id++;
246
247	node = new conf_node (default_node);
248
249	nodes.push_back (node);
250
251	node->nodename = strdup (val);
252
253	{
254	char *fname;
255	FILE *f;
256
257	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
258
259	f = fopen (fname, "r");
260	if (f)
261	{
262	node->rsa_key = RSA_new ();
263
264	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
265	{
266	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
267	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
268	exit (EXIT_FAILURE);
269	}
270
271	require (RSA_blinding_on (node->rsa_key, 0));
272
273	fclose (f);
274	}
275	else
276	{
277	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
278
279	if (need_keys)
280	exit (EXIT_FAILURE);
281	}
282
283	free (fname);
284	}
285
286	if (::thisnode && !strcmp (node->nodename, ::thisnode))
287	thisnode = node;
288	}
289	else if (!strcmp (var, "private-key"))
290	free (prikeyfile), prikeyfile = strdup (val);
291	else if (!strcmp (var, "ifpersist"))
292	{
293	parse_bool (ifpersist, "ifpersist", true, false);
294	}
295	else if (!strcmp (var, "ifname"))
296	free (ifname), ifname = strdup (val);
297	else if (!strcmp (var, "rekey"))
298	rekey = atoi (val);
299	else if (!strcmp (var, "keepalive"))
300	keepalive = atoi (val);
301	else if (!strcmp (var, "mtu"))
302	mtu = atoi (val);
303	else if (!strcmp (var, "if-up"))
304	free (script_if_up), script_if_up = strdup (val);
305	else if (!strcmp (var, "node-up"))
306	free (script_node_up), script_node_up = strdup (val);
307	else if (!strcmp (var, "node-down"))
308	free (script_node_down), script_node_down = strdup (val);
309	else if (!strcmp (var, "pid-file"))
310	free (pidfilename), pidfilename = strdup (val);
311	else if (!strcmp (var, "http-proxy-host"))
312	{
313	#if ENABLE_HTTP_PROXY
314	free (proxy_host), proxy_host = strdup (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-port"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_port = atoi (val);
321	#endif
322	}
323	else if (!strcmp (var, "http-proxy-auth"))
324	{
325	#if ENABLE_HTTP_PROXY
326	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
327	#endif
328	}
329
330	/* node-specific, non-defaultable */
331	else if (node != &default_node && !strcmp (var, "hostname"))
332	free (node->hostname), node->hostname = strdup (val);
333
334	/* node-specific, defaultable */
335	else if (!strcmp (var, "udp-port"))
336	node->udp_port = atoi (val);
337	else if (!strcmp (var, "tcp-port"))
338	node->tcp_port = atoi (val);
339	else if (!strcmp (var, "dns-port"))
340	node->dns_port = atoi (val);
341	else if (!strcmp (var, "router-priority"))
342	node->routerprio = atoi (val);
343	else if (!strcmp (var, "connect"))
344	{
345	if (!strcmp (val, "ondemand"))
346	node->connectmode = conf_node::C_ONDEMAND;
347	else if (!strcmp (val, "never"))
348	node->connectmode = conf_node::C_NEVER;
349	else if (!strcmp (val, "always"))
350	node->connectmode = conf_node::C_ALWAYS;
351	else if (!strcmp (val, "disabled"))
352	node->connectmode = conf_node::C_DISABLED;
353	else
354	slog (L_WARN,
355	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
356	var, fname, lineno);
357	}
358	else if (!strcmp (var, "inherit-tos"))
359	{
360	parse_bool (node->inherit_tos, "inherit-tos", true, false);
361	}
362	else if (!strcmp (var, "compress"))
363	{
364	parse_bool (node->compress, "compress", true, false);
365	}
366	// all these bool options really really cost a lot of executable size!
367	else if (!strcmp (var, "enable-tcp"))
368	{
369	#if ENABLE_TCP
370	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
371	#endif
372	}
373	else if (!strcmp (var, "enable-icmp"))
374	{
375	#if ENABLE_ICMP
376	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
377	#endif
378	}
379	else if (!strcmp (var, "enable-dns"))
380	{
381	#if ENABLE_DNS
382	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
383	#endif
384	}
385	else if (!strcmp (var, "enable-udp"))
386	{
387	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
388	}
389	else if (!strcmp (var, "enable-rawip"))
390	{;
391	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
392	}
393
394	// unknown or misplaced
395	else
396	slog (L_WARN,
397	_("unknown or misplaced variable `%s', at '%s' line %d"),
398	var, fname, lineno);
399	}	583	}
400		584
401	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
402	}	588	}
403	else	589	else
404	{	590	{
405	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));
406	exit (EXIT_FAILURE);	592	exit (EXIT_FAILURE);
407	}	593	}
408		594
409	free (fname);	595	free (fname);
410		596
411	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
412		598
413	f = fopen (fname, "r");	599	f = fopen (fname, "r");
414	if (f)	600	if (f)
415	{	601	{
416	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
417		603
418	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
419	{	605	{
420	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
421	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));
422	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
423	}	609	}
424		610
425	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
426		612
427	fclose (f);	613	fclose (f);
428	}	614	}
429	else	615	else
430	{	616	{
…		…
433	if (need_keys)	619	if (need_keys)
434	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
435	}	621	}
436		622
437	if (need_keys && ::thisnode	623	if (need_keys && ::thisnode
438	&& rsa_key && thisnode && thisnode->rsa_key)	624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
439	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
440	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
441	{	627	{
442	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);
443	exit (EXIT_FAILURE);	629	exit (EXIT_FAILURE);
444	}	630	}
445		631
446	free (fname);	632	free (fname);
447	}
448		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
449	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
450	{	640	{
451	char *fname;	641	char *fname;
452		642
453	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
454		644
…		…
485	printf ("\n");	675	printf ("\n");
486	}	676	}
487		677
488	configuration::configuration ()	678	configuration::configuration ()
489	{	679	{
490	asprintf (&confbase, "%s/vpe", CONFDIR);	680	asprintf (&confbase, "%s/gvpe", CONFDIR);
491		681
492	init ();	682	init ();
493	}	683	}
494		684
495	configuration::~configuration ()	685	configuration::~configuration ()
496	{	686	{
497	cleanup ();	687	cleanup ();
498	}	688	}
499		689
500

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Comparing gvpe/src/conf.C (file contents): Revision 1.26 by pcg, Wed May 12 13:32:13 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 1.26 by pcg, Wed May 12 13:32:13 2004 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC