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

Comparing gvpe/src/conf.C (file contents):
Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.c -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	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
10	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
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	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
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	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
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	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.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
37		45
38	#include <openssl/err.h>	46	#include <openssl/err.h>
39	#include <openssl/pem.h>	47	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	49	#include <openssl/rand.h>
42		50	#include <openssl/bn.h>
43	#include "gettext.h"
44		51
45	#include "conf.h"	52	#include "conf.h"
46	#include "slog.h"	53	#include "slog.h"
47	#include "util.h"	54	#include "util.h"
48		55
49	char *confbase;	56	char *confbase;
50	char *thisnode;	57	char *thisnode;
51	char *identname;	58	char *identname;
52	char *pidfilename;
53		59
54	struct configuration conf;	60	struct configuration conf;
55		61
		62	u8
56	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
57	{	64	{
58	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
60	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
61	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
62		70
63	return 0;	71	return 0;
64	}	72	}
65		73
		74	const char *
66	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
67	{	76	{
68	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
69	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
70	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
71	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
72		82
73	return "<unknown>";	83	return "<unknown>";
74	}	84	}
75		85
76	void	86	static bool
77	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
78	{	88	{
79	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
80	id,	90	if ((i)[0] == '' && !(*i)[1])
81	id >> 8, id & 0xff,	91	return true;
82	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
83	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
84	connectmode == C_NEVER ? "never" :	94
85	connectmode == C_ALWAYS ? "always" : "",	95	return false;
86	nodename,	96	}
87	hostname ? hostname : "",	97
88	hostname ? ":" : "",	98	bool
89	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
90	);	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;
91	}	108	}
92		109
93	conf_node::~conf_node ()	110	conf_node::~conf_node ()
94	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
95	if (rsa_key)	115	if (rsa_key)
96	RSA_free (rsa_key);	116	RSA_free (rsa_key);
97		117
98	free (nodename);	118	free (nodename);
99	free (hostname);	119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
100	}	126	}
101		127
		128	void
102	void configuration::init ()	129	configuration::init ()
103	{	130	{
104	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
105		132
		133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
106	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
107	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
108	llevel = L_INFO;	137	llevel = L_INFO;
109	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
110	#if ENABLE_ICMP	139	#if ENABLE_ICMP
111	icmp_type = ICMP_ECHOREPLY;	140	icmp_type = ICMP_ECHOREPLY;
112	#endif	141	#endif
113		142
114	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
115	default_node.tcp_port = DEFAULT_UDPPORT;	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
117	default_node.compress = true;	146	default_node.compress = true;
118	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
119	}	148	default_node.max_retry = DEFAULT_MAX_RETRY;
		149	default_node.max_ttl = DEFAULT_MAX_TTL;
		150	default_node.max_queue = DEFAULT_MAX_QUEUE;
		151	default_node.if_up_data = strdup ("");
120		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_forw_host = strdup ("127.0.0.1");
		157	dns_forw_port = 53;
		158	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		159	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		160	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		161	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		162	#endif
		163
		164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		165	}
		166
		167	void
121	void configuration::cleanup()	168	configuration::cleanup ()
122	{	169	{
123	if (rsa_key)	170	if (rsa_key)
124	RSA_free (rsa_key);	171	RSA_free (rsa_key);
125		172
126	rsa_key = 0;	173	rsa_key = 0;
127		174
128	free (ifname); ifname = 0;	175	free (pidfilename); pidfilename = 0;
		176	free (ifname); ifname = 0;
129	#if ENABLE_HTTP_PROXY	177	#if ENABLE_HTTP_PROXY
130	free (proxy_host); proxy_host = 0;	178	free (proxy_host); proxy_host = 0;
131	free (proxy_auth); proxy_auth = 0;	179	free (proxy_auth); proxy_auth = 0;
132	#endif	180	#endif
		181	#if ENABLE_DNS
		182	free (dns_forw_host); dns_forw_host = 0;
		183	#endif
		184	free (script_if_up); script_if_up = 0;
		185	free (script_node_up); script_node_up = 0;
		186	free (script_node_change); script_node_change = 0;
		187	free (script_node_down); script_node_down = 0;
133	}	188	}
134		189
135	void	190	void
136	configuration::clear_config ()	191	configuration::clear ()
137	{	192	{
138	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	193	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
139	delete *i;	194	delete *i;
140		195
141	nodes.clear ();	196	nodes.clear ();
142		197
143	cleanup ();	198	cleanup ();
144	init ();	199	init ();
145	}	200	}
146		201
147	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
148	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
149	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
150	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
151	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
152	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
153	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
154	else \	209	else \
155	slog (L_WARN, \	210	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"), \	211	} while (0)
157	name, var, fname, lineno);
158		212
159	void configuration::read_config (bool need_keys)	213	const char *
		214	configuration_parser::parse_line (char *line)
		215	{
		216	{
		217	char *end = line + strlen (line);
		218
		219	while (*end < ' ' && end >= line)
		220	end--;
		221
		222	*++end = 0;
		223	}
		224
		225	char *tok = line;
		226	const char *var = strtok (tok, "\t =");
		227	tok = 0;
		228
		229	if (!var \|\| !var[0])
		230	return 0; /* no tokens on this line */
		231
		232	if (var[0] == '#')
		233	return 0; /* comment: ignore */
		234
		235	char *val = strtok (NULL, "\t\n\r =");
		236
		237	if (!val \|\| val[0] == '#')
		238	return _("no value given for variable. (ignored)");
		239
		240	if (!strcmp (var, "on"))
		241	{
		242	if (!::thisnode
		243	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		244	\|\| !strcmp (val, ::thisnode))
		245	return parse_line (strtok (NULL, "\n\r"));
		246	else
		247	return 0;
		248	}
		249
		250	// truly global
		251	if (!strcmp (var, "loglevel"))
		252	{
		253	loglevel l = string_to_loglevel (val);
		254
		255	if (l == L_NONE)
		256	return _("unknown loglevel. (skipping)");
		257	}
		258	else if (!strcmp (var, "ip-proto"))
		259	conf.ip_proto = atoi (val);
		260	else if (!strcmp (var, "icmp-type"))
		261	{
		262	#if ENABLE_ICMP
		263	conf.icmp_type = atoi (val);
		264	#endif
		265	}
		266
		267	// per config
		268	else if (!strcmp (var, "node"))
		269	{
		270	parse_argv ();
		271
		272	conf.default_node.id++;
		273	node = new conf_node (conf.default_node);
		274	conf.nodes.push_back (node);
		275	node->nodename = strdup (val);
		276
		277	{
		278	char *fname;
		279	FILE *f;
		280
		281	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		282
		283	f = fopen (fname, "r");
		284	if (f)
		285	{
		286	node->rsa_key = RSA_new ();
		287
		288	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		289	{
		290	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		291	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		292	exit (EXIT_FAILURE);
		293	}
		294
		295	require (RSA_blinding_on (node->rsa_key, 0));
		296
		297	fclose (f);
		298	}
		299	else
		300	{
		301	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		302
		303	if (need_keys)
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	free (fname);
		308	}
		309
		310	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		311	conf.thisnode = node;
		312	}
		313	else if (!strcmp (var, "private-key"))
		314	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		315	else if (!strcmp (var, "ifpersist"))
		316	parse_bool (conf.ifpersist, "ifpersist", true, false);
		317	else if (!strcmp (var, "ifname"))
		318	free (conf.ifname), conf.ifname = strdup (val);
		319	else if (!strcmp (var, "rekey"))
		320	conf.rekey = atoi (val);
		321	else if (!strcmp (var, "keepalive"))
		322	conf.keepalive = atoi (val);
		323	else if (!strcmp (var, "mtu"))
		324	conf.mtu = atoi (val);
		325	else if (!strcmp (var, "nfmark"))
		326	conf.nfmark = atoi (val);
		327	else if (!strcmp (var, "if-up"))
		328	free (conf.script_if_up), conf.script_if_up = strdup (val);
		329	else if (!strcmp (var, "node-up"))
		330	free (conf.script_node_up), conf.script_node_up = strdup (val);
		331	else if (!strcmp (var, "node-change"))
		332	free (conf.script_node_change), conf.script_node_change = strdup (val);
		333	else if (!strcmp (var, "node-down"))
		334	free (conf.script_node_down), conf.script_node_down = strdup (val);
		335	else if (!strcmp (var, "pid-file"))
		336	free (conf.pidfilename), conf.pidfilename = strdup (val);
		337	else if (!strcmp (var, "dns-forw-host"))
		338	{
		339	#if ENABLE_DNS
		340	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		341	#endif
		342	}
		343	else if (!strcmp (var, "dns-forw-port"))
		344	{
		345	#if ENABLE_DNS
		346	conf.dns_forw_port = atoi (val);
		347	#endif
		348	}
		349	else if (!strcmp (var, "dns-timeout-factor"))
		350	{
		351	#if ENABLE_DNS
		352	conf.dns_timeout_factor = atof (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-send-interval"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_send_interval = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-overlap-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_overlap_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-max-outstanding"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_max_outstanding = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "http-proxy-host"))
		374	{
		375	#if ENABLE_HTTP_PROXY
		376	free (conf.proxy_host), conf.proxy_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "http-proxy-port"))
		380	{
		381	#if ENABLE_HTTP_PROXY
		382	conf.proxy_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "http-proxy-auth"))
		386	{
		387	#if ENABLE_HTTP_PROXY
		388	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		389	#endif
		390	}
		391
		392	/* node-specific, non-defaultable */
		393	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		394	free (node->hostname), node->hostname = strdup (val);
		395
		396	/* node-specific, defaultable */
		397	else if (!strcmp (var, "udp-port"))
		398	node->udp_port = atoi (val);
		399	else if (!strcmp (var, "tcp-port"))
		400	node->tcp_port = atoi (val);
		401	else if (!strcmp (var, "dns-hostname"))
		402	{
		403	#if ENABLE_DNS
		404	free (node->dns_hostname), node->dns_hostname = strdup (val);
		405	#endif
		406	}
		407	else if (!strcmp (var, "dns-port"))
		408	{
		409	#if ENABLE_DNS
		410	node->dns_port = atoi (val);
		411	#endif
		412	}
		413	else if (!strcmp (var, "dns-domain"))
		414	{
		415	#if ENABLE_DNS
		416	free (node->domain), node->domain = strdup (val);
		417	#endif
		418	}
		419	else if (!strcmp (var, "if-up-data"))
		420	free (node->if_up_data), node->if_up_data = strdup (val);
		421	else if (!strcmp (var, "router-priority"))
		422	node->routerprio = atoi (val);
		423	else if (!strcmp (var, "max-retry"))
		424	node->max_retry = atoi (val);
		425	else if (!strcmp (var, "connect"))
		426	{
		427	if (!strcmp (val, "ondemand"))
		428	node->connectmode = conf_node::C_ONDEMAND;
		429	else if (!strcmp (val, "never"))
		430	node->connectmode = conf_node::C_NEVER;
		431	else if (!strcmp (val, "always"))
		432	node->connectmode = conf_node::C_ALWAYS;
		433	else if (!strcmp (val, "disabled"))
		434	node->connectmode = conf_node::C_DISABLED;
		435	else
		436	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		437	}
		438	else if (!strcmp (var, "inherit-tos"))
		439	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		440	else if (!strcmp (var, "compress"))
		441	parse_bool (node->compress, "compress", true, false);
		442	// all these bool options really really cost a lot of executable size!
		443	else if (!strcmp (var, "enable-tcp"))
		444	{
		445	#if ENABLE_TCP
		446	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		447	#endif
		448	}
		449	else if (!strcmp (var, "enable-icmp"))
		450	{
		451	#if ENABLE_ICMP
		452	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		453	#endif
		454	}
		455	else if (!strcmp (var, "enable-dns"))
		456	{
		457	#if ENABLE_DNS
		458	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		459	#endif
		460	}
		461	else if (!strcmp (var, "enable-udp"))
		462	{
		463	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		464	}
		465	else if (!strcmp (var, "enable-rawip"))
		466	{
		467	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		468	}
		469	else if (!strcmp (var, "allow-direct"))
		470	node->allow_direct.push_back (strdup (val));
		471	else if (!strcmp (var, "deny-direct"))
		472	node->deny_direct.push_back (strdup (val));
		473	else if (!strcmp (var, "max-ttl"))
		474	node->max_ttl = atof (val);
		475	else if (!strcmp (var, "max-queue"))
		476	node->max_queue = atoi (val);
		477
		478	// unknown or misplaced
		479	else
		480	return _("unknown configuration directive. (ignored)");
		481
		482	return 0;
		483	}
		484
		485	void
		486	conf_node::finalise ()
		487	{
		488	if (max_queue < 1)
		489	{
		490	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		491	max_queue = 1;
		492	}
		493
		494	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		495	{
		496	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		497	connectmode = C_ALWAYS;
		498	}
		499	}
		500
		501	void
		502	configuration_parser::parse_argv ()
		503	{
		504	for (int i = 0; i < argc; ++i)
		505	{
		506	char *v = argv [i];
		507
		508	if (!*v)
		509	continue;
		510
		511	char *enode = v;
		512
		513	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		514	enode++;
		515
		516	if (*enode != '.')
		517	enode = 0;
		518
		519	char *wnode = node == &conf.default_node
		520	? 0
		521	: node->nodename;
		522
		523	if ((!wnode && !enode)
		524	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		525	{
		526	const char *warn = parse_line (enode ? enode + 1 : v);
		527
		528	if (warn)
		529	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		530
		531	*v = 0;
		532	}
		533	}
		534	}
		535
		536	configuration_parser::configuration_parser (configuration &conf,
		537	bool need_keys,
		538	int argc,
		539	char **argv)
		540	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
160	{	541	{
161	char *fname;	542	char *fname;
162	FILE *f;	543	FILE *f;
163		544
164	clear_config ();	545	conf.clear ();
165		546
166	asprintf (&fname, "%s/vped.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
167	f = fopen (fname, "r");	548	f = fopen (fname, "r");
168		549
169	if (f)	550	if (f)
170	{	551	{
171	char line[16384];	552	char line[16384];
172	int lineno = 0;	553	int lineno = 0;
173	char var, val;	554	node = &conf.default_node;
174	conf_node *node = &default_node;
175		555
176	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
177	{	557	{
178	lineno++;	558	lineno++;
179		559
180	{	560	const char *warn = parse_line (line);
181	char *end = line + strlen (line);
182		561
183	while (*end < ' ' && end >= line)	562	if (warn)
184	end--;	563	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	#if ENABLE_ICMP
234	//TODO: error message
235	else if (!strcmp (var, "icmp-type"))
236	icmp_type = atoi (val);
237	#endif
238
239	// per config
240	else if (!strcmp (var, "node"))
241	{
242	default_node.id++;
243
244	node = new conf_node (default_node);
245
246	nodes.push_back (node);
247
248	node->nodename = strdup (val);
249
250	{
251	char *fname;
252	FILE *f;
253
254	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
255
256	f = fopen (fname, "r");
257	if (f)
258	{
259	node->rsa_key = RSA_new ();
260
261	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
262	{
263	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
264	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
265	exit (1);
266	}
267
268	RSA_blinding_on (node->rsa_key, 0);
269
270	fclose (f);
271	}
272	else
273	{
274	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
275
276	if (need_keys)
277	exit (1);
278	}
279
280	free (fname);
281	}
282
283	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
284	thisnode = node;
285	}
286	else if (!strcmp (var, "private-key"))
287	prikeyfile = strdup (val);
288	else if (!strcmp (var, "ifpersist"))
289	{
290	parse_bool (ifpersist, "ifpersist", true, false);
291	}
292	else if (!strcmp (var, "ifname"))
293	ifname = strdup (val);
294	else if (!strcmp (var, "rekey"))
295	rekey = atoi (val);
296	else if (!strcmp (var, "keepalive"))
297	keepalive = atoi (val);
298	else if (!strcmp (var, "mtu"))
299	mtu = atoi (val);
300	else if (!strcmp (var, "if-up"))
301	script_if_up = strdup (val);
302	else if (!strcmp (var, "node-up"))
303	script_node_up = strdup (val);
304	else if (!strcmp (var, "node-down"))
305	script_node_down = strdup (val);
306	#if ENABLE_HTTP_PROXY
307	else if (!strcmp (var, "http-proxy-host"))
308	proxy_host = strdup (val);
309	else if (!strcmp (var, "http-proxy-port"))
310	proxy_port = atoi (val);
311	else if (!strcmp (var, "http-proxy-auth"))
312	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
313	#endif
314
315	/* node-specific, non-defaultable */
316	else if (node != &default_node && !strcmp (var, "hostname"))
317	{
318	free (node->hostname);
319	node->hostname = strdup (val);
320	}
321
322	/* node-specific, defaultable */
323	else if (!strcmp (var, "udp-port"))
324	node->udp_port = atoi (val);
325	else if (!strcmp (var, "tcp-port"))
326	node->tcp_port = atoi (val);
327	else if (!strcmp (var, "router-priority"))
328	node->routerprio = atoi (val);
329	else if (!strcmp (var, "connect"))
330	{
331	if (!strcmp (val, "ondemand"))
332	node->connectmode = conf_node::C_ONDEMAND;
333	else if (!strcmp (val, "never"))
334	node->connectmode = conf_node::C_NEVER;
335	else if (!strcmp (val, "always"))
336	node->connectmode = conf_node::C_ALWAYS;
337	else if (!strcmp (val, "disabled"))
338	node->connectmode = conf_node::C_DISABLED;
339	else
340	slog (L_WARN,
341	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
342	var, fname, lineno);
343	}
344	else if (!strcmp (var, "inherit-tos"))
345	{
346	parse_bool (node->inherit_tos, "inherit-tos", true, false);
347	}
348	else if (!strcmp (var, "compress"))
349	{
350	parse_bool (node->compress, "compress", true, false);
351	}
352	// all these bool options really really cost a lot of executable size!
353	else if (!strcmp (var, "enable-tcp"))
354	{
355	#if ENABLE_TCP
356	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
357	#endif
358	}
359	else if (!strcmp (var, "enable-icmp"))
360	{
361	#if ENABLE_ICMP
362	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
363	#endif
364	}
365	else if (!strcmp (var, "enable-udp"))
366	{
367	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
368	}
369	else if (!strcmp (var, "enable-rawip"))
370	{
371	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
372	}
373
374	// unknown or misplaced
375	else
376	slog (L_WARN,
377	_("unknown or misplaced variable `%s', at '%s' line %d"),
378	var, fname, lineno);
379	}	564	}
380		565
381	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
382	}	569	}
383	else	570	else
384	{	571	{
385	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	572	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
386	exit (1);	573	exit (EXIT_FAILURE);
387	}	574	}
388		575
389	free (fname);	576	free (fname);
390		577
391	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
392		579
393	f = fopen (fname, "r");	580	f = fopen (fname, "r");
394	if (f)	581	if (f)
395	{	582	{
396	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
397		584
398	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
399	{	586	{
400	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
401	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	588	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
402	exit (1);	589	exit (EXIT_FAILURE);
403	}	590	}
404		591
405	RSA_blinding_on (rsa_key, 0);	592	require (RSA_blinding_on (conf.rsa_key, 0));
406		593
407	fclose (f);	594	fclose (f);
408	}	595	}
409	else	596	else
410	{	597	{
411	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	598	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
412		599
413	if (need_keys)	600	if (need_keys)
414	exit (1);	601	exit (EXIT_FAILURE);
		602	}
		603
		604	if (need_keys && ::thisnode
		605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		606	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		608	{
		609	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		610	exit (EXIT_FAILURE);
415	}	611	}
416		612
417	free (fname);	613	free (fname);
418	}
419		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
420	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
421	{	621	{
422	char *fname;	622	char *fname;
423		623
424	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
425		625
…		…
429	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
430	free (rname);	630	free (rname);
431	}	631	}
432		632
433	return fname;	633	return fname;
		634	}
		635
		636	void
		637	conf_node::print ()
		638	{
		639	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		640	id,
		641	id >> 8, id & 0xff,
		642	compress ? 'Y' : 'N',
		643	connectmode == C_ONDEMAND ? "ondemand"
		644	: connectmode == C_NEVER ? "never"
		645	: connectmode == C_ALWAYS ? "always"
		646	: connectmode == C_DISABLED ? "disabled"
		647	: "",
		648	nodename,
		649	protocols,
		650	hostname ? hostname : "",
		651	hostname ? ":" : "",
		652	hostname ? udp_port : 0
		653	);
434	}	654	}
435		655
436	void	656	void
437	configuration::print ()	657	configuration::print ()
438	{	658	{
…		…
445	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
446	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
447	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	667	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
448	printf ("\n");	668	printf ("\n");
449		669
450	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
451	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
452		672
453	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
454	(*i)->print ();	674	(*i)->print ();
455		675
456	printf ("\n");	676	printf ("\n");
457	}	677	}
458		678
459	configuration::configuration ()	679	configuration::configuration ()
460	{	680	{
		681	asprintf (&confbase, "%s/gvpe", CONFDIR);
		682
461	init ();	683	init ();
462	}	684	}
463		685
464	configuration::~configuration ()	686	configuration::~configuration ()
465	{	687	{
466	cleanup ();	688	cleanup ();
467	}	689	}
468		690
469

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Comparing gvpe/src/conf.C (file contents): Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs. Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC