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

Comparing gvpe/src/conf.C (file contents):
Revision 1.5 by pcg, Fri Mar 28 04:05:10 2003 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) 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>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
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
56	configuration::configuration ()	62	u8
		63	best_protocol (u8 protset)
57	{	64	{
58	init ();	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	}	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
60		70
61	configuration::~configuration ()	71	return 0;
62	{
63	cleanup ();
64	}	72	}
65		73
		74	const char *
		75	strprotocol (u8 protocol)
		76	{
		77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
		79	if (protocol & PROT_UDPv4 ) return "udp";
		80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
		82
		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;
		108	}
		109
		110	void
		111	conf_node::print ()
		112	{
		113	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",
		114	id,
		115	id >> 8, id & 0xff,
		116	compress ? 'Y' : 'N',
		117	connectmode == C_ONDEMAND ? "ondemand"
		118	: connectmode == C_NEVER ? "never"
		119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
		122	nodename,
		123	hostname ? hostname : "",
		124	hostname ? ":" : "",
		125	hostname ? udp_port : 0
		126	);
		127	}
		128
		129	conf_node::~conf_node ()
		130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
		134	if (rsa_key)
		135	RSA_free (rsa_key);
		136
		137	free (nodename);
		138	free (hostname);
		139	free (if_up_data);
		140	#if ENABLE_DNS
		141	free (domain);
		142	free (dns_hostname);
		143	#endif
		144	#endif
		145	}
		146
		147	void
66	void configuration::init ()	148	configuration::init ()
67	{	149	{
68	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
69		151
		152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
70	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
71	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
72	llevel = L_INFO;	156	llevel = L_INFO;
73	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
		158	#if ENABLE_ICMP
		159	icmp_type = ICMP_ECHOREPLY;
		160	#endif
74		161
75	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
		163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
76	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
77	default_node.compress = true;	165	default_node.compress = true;
78	default_node.can_send = PROT_UDPv4;	166	default_node.protocols = 0;
79	default_node.can_recv = PROT_IPv4;	167	default_node.max_retry = DEFAULT_MAX_RETRY;
80	}	168	default_node.max_ttl = DEFAULT_MAX_TTL;
		169	default_node.max_queue = DEFAULT_MAX_QUEUE;
		170	default_node.if_up_data = strdup ("");
81		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
82	void configuration::cleanup()	187	configuration::cleanup ()
83	{	188	{
84	if (rsa_key)	189	if (rsa_key)
85	RSA_free (rsa_key);	190	RSA_free (rsa_key);
86		191
87	free (ifname);
88
89	rsa_key = 0;	192	rsa_key = 0;
90	ifname = 0;	193
		194	free (pidfilename); pidfilename = 0;
		195	free (ifname); ifname = 0;
		196	#if ENABLE_HTTP_PROXY
		197	free (proxy_host); proxy_host = 0;
		198	free (proxy_auth); proxy_auth = 0;
		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;
91	}	207	}
92		208
93	void	209	void
94	configuration::clear_config ()	210	configuration::clear ()
95	{	211	{
96	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)
97	delete *i;	213	delete *i;
98		214
99	nodes.clear ();	215	nodes.clear ();
100		216
101	cleanup ();	217	cleanup ();
102	init ();	218	init ();
103	}	219	}
104		220
105	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
106	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
107	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
108	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
109	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
110	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
111	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
112	else \	228	else \
113	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
114	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
115	name, var, fname, lineno);
116		231
117	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)
118	{	560	{
119	char *fname;	561	char *fname;
120	FILE *f;	562	FILE *f;
121		563
122	clear_config ();	564	conf.clear ();
123		565
124	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
125	f = fopen (fname, "r");	567	f = fopen (fname, "r");
126		568
127	if (f)	569	if (f)
128	{	570	{
129	char line[16384];	571	char line[16384];
130	int lineno = 0;	572	int lineno = 0;
131	char var, val;	573	node = &conf.default_node;
132	conf_node *node = &default_node;
133		574
134	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
135	{	576	{
136	lineno++;	577	lineno++;
137		578
138	{	579	const char *warn = parse_line (line);
139	char *end = line + strlen (line);
140		580
141	while (*end < ' ' && end >= line)	581	if (warn)
142	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
143
144	*++end = 0;
145	}
146
147	char *tok = line;
148
149	retry:
150	var = strtok (tok, "\t =");
151	tok = 0;
152
153	if (!var \|\| !var[0])
154	continue; /* no tokens on this line */
155
156	if (var[0] == '#')
157	continue; /* comment: ignore */
158
159	val = strtok (NULL, "\t\n\r =");
160
161	if (!val \|\| val[0] == '#')
162	{
163	slog (L_WARN,
164	_("no value for variable `%s', at '%s' line %d"),
165	var, fname, lineno);
166	break;
167	}
168
169	if (!strcmp (var, "on"))
170	{
171	if (!::thisnode
172	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
173	\|\| !strcmp (val, ::thisnode))
174	goto retry;
175
176	continue;
177	}
178
179	// truly global
180	if (!strcmp (var, "loglevel"))
181	{
182	loglevel l = string_to_loglevel (val);
183
184	if (l != L_NONE)
185	llevel = l;
186	else
187	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
188	}
189	else if (!strcmp (var, "ip-proto"))
190	ip_proto = atoi (val);
191
192	// per config
193	else if (!strcmp (var, "node"))
194	{
195	default_node.id++;
196
197	node = new conf_node (default_node);
198
199	nodes.push_back (node);
200
201	node->nodename = strdup (val);
202
203	{
204	char *fname;
205	FILE *f;
206
207	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
208
209	f = fopen (fname, "r");
210	if (f)
211	{
212	node->rsa_key = RSA_new ();
213
214	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
215	{
216	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
217	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
218	exit (1);
219	}
220
221	RSA_blinding_on (node->rsa_key, 0);
222
223	fclose (f);
224	}
225	else
226	{
227	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
228
229	if (need_keys)
230	exit (1);
231	}
232
233	free (fname);
234	}
235
236	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
237	thisnode = node;
238	}
239	else if (!strcmp (var, "private-key"))
240	prikeyfile = strdup (val);
241	else if (!strcmp (var, "ifpersist"))
242	{
243	parse_bool (ifpersist, "ifpersist", true, false);
244	}
245	else if (!strcmp (var, "ifname"))
246	ifname = strdup (val);
247	else if (!strcmp (var, "rekey"))
248	rekey = atoi (val);
249	else if (!strcmp (var, "keepalive"))
250	keepalive = atoi (val);
251	else if (!strcmp (var, "mtu"))
252	mtu = atoi (val);
253	else if (!strcmp (var, "if-up"))
254	script_if_up = strdup (val);
255	else if (!strcmp (var, "node-up"))
256	script_node_up = strdup (val);
257	else if (!strcmp (var, "node-down"))
258	script_node_down = strdup (val);
259
260	/* node-specific, non-defaultable */
261	else if (node != &default_node && !strcmp (var, "hostname"))
262	{
263	free (node->hostname);
264	node->hostname = strdup (val);
265	}
266
267	/* node-specific, defaultable */
268	else if (!strcmp (var, "udp-port"))
269	node->udp_port = atoi (val);
270	else if (!strcmp (var, "router-priority"))
271	node->routerprio = atoi (val);
272	else if (!strcmp (var, "connect"))
273	{
274	if (!strcmp (val, "ondemand"))
275	node->connectmode = conf_node::C_ONDEMAND;
276	else if (!strcmp (val, "never"))
277	node->connectmode = conf_node::C_NEVER;
278	else if (!strcmp (val, "always"))
279	node->connectmode = conf_node::C_ALWAYS;
280	else if (!strcmp (val, "disabled"))
281	node->connectmode = conf_node::C_DISABLED;
282	else
283	slog (L_WARN,
284	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
285	var, fname, lineno);
286	}
287	else if (!strcmp (var, "inherit-tos"))
288	{
289	parse_bool (node->inherit_tos, "inherit-tos", true, false);
290	}
291	else if (!strcmp (var, "compress"))
292	{
293	parse_bool (node->compress, "compress", true, false);
294	}
295	// all these bool options really really cost a lot of executable size!
296	else if (!strcmp (var, "can-send-udp"))
297	{
298	u8 v; parse_bool (v, "can-send-udp", PROT_UDPv4, 0); node->can_send = (node->can_send & ~PROT_UDPv4) \| v;
299	}
300	else if (!strcmp (var, "can-recv-udp"))
301	{
302	u8 v; parse_bool (v, "can-recv-udp", PROT_UDPv4, 0); node->can_recv = (node->can_recv & ~PROT_UDPv4) \| v;
303	}
304	else if (!strcmp (var, "can-send-rawip"))
305	{
306	u8 v; parse_bool (v, "can-send-rawip", PROT_IPv4, 0); node->can_send = (node->can_send & ~PROT_IPv4) \| v;
307	}
308	else if (!strcmp (var, "can-recv-rawip"))
309	{
310	u8 v; parse_bool (v, "can-recv-rawip", PROT_IPv4, 0); node->can_recv = (node->can_recv & ~PROT_IPv4) \| v;
311	}
312
313	// unknown or misplaced
314	else
315	{
316	slog (L_WARN,
317	_("unknown or misplaced variable `%s', at '%s' line %d"),
318	var, fname, lineno);
319	}
320	}	583	}
321		584
322	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
323	}	588	}
324	else	589	else
325	{	590	{
326	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));
327	exit (1);	592	exit (EXIT_FAILURE);
328	}	593	}
329		594
330	free (fname);	595	free (fname);
331		596
332	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
333		598
334	f = fopen (fname, "r");	599	f = fopen (fname, "r");
335	if (f)	600	if (f)
336	{	601	{
337	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
338		603
339	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
340	{	605	{
341	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
342	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));
343	exit (1);	608	exit (EXIT_FAILURE);
344	}	609	}
345		610
346	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
347		612
348	fclose (f);	613	fclose (f);
349	}	614	}
350	else	615	else
351	{	616	{
352	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	617	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
353		618
354	if (need_keys)	619	if (need_keys)
355	exit (1);	620	exit (EXIT_FAILURE);
		621	}
		622
		623	if (need_keys && ::thisnode
		624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		625	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		627	{
		628	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		629	exit (EXIT_FAILURE);
356	}	630	}
357		631
358	free (fname);	632	free (fname);
359	}
360		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
361	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
362	{	640	{
363	char *fname;	641	char *fname;
364		642
365	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
366		644
…		…
383	printf (_("MTU: %d\n"), mtu);	661	printf (_("MTU: %d\n"), mtu);
384	printf (_("rekeying interval: %d\n"), rekey);	662	printf (_("rekeying interval: %d\n"), rekey);
385	printf (_("keepalive interval: %d\n"), keepalive);	663	printf (_("keepalive interval: %d\n"), keepalive);
386	printf (_("interface: %s\n"), ifname);	664	printf (_("interface: %s\n"), ifname);
387	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	665	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
388	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	666	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
389	printf ("\n");	667	printf ("\n");
390		668
391	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	669	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
392	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	670	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
393		671
…		…
395	(*i)->print ();	673	(*i)->print ();
396		674
397	printf ("\n");	675	printf ("\n");
398	}	676	}
399		677
400	void	678	configuration::configuration ()
401	conf_node::print ()
402	{	679	{
403	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	680	asprintf (&confbase, "%s/gvpe", CONFDIR);
404	id,
405	id >> 8, id & 0xff,
406	compress ? 'Y' : 'N',
407	connectmode == C_ONDEMAND ? "ondemand" :
408	connectmode == C_NEVER ? "never" :
409	connectmode == C_ALWAYS ? "always" : "",
410	nodename,
411	hostname ? hostname : "",
412	hostname ? ":" : "",
413	hostname ? udp_port : 0
414	);
415	}
416		681
		682	init ();
		683	}
		684
		685	configuration::~configuration ()
		686	{
		687	cleanup ();
		688	}
		689

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Comparing gvpe/src/conf.C (file contents): Revision 1.5 by pcg, Fri Mar 28 04:05:10 2003 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 1.5 by pcg, Fri Mar 28 04:05:10 2003 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC