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

Comparing gvpe/src/conf.C (file contents):
Revision 1.11 by pcg, Wed Apr 2 21:43:44 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>
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
		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;
		66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59	if (protset & PROT_UDPv4) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60	if (protset & PROT_TCPv4) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		70
62	return 0;	71	return 0;
63	}	72	}
64		73
		74	const char *
65	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
66	{	76	{
67	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
68	if (protocol & PROT_UDPv4) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
69	if (protocol & PROT_TCPv4) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
70		82
71	return "<unknown>";	83	return "<unknown>";
72	}	84	}
73		85
74	configuration::configuration ()	86	static bool
		87	match_list (const vector<const char > &list, const char str)
75	{	88	{
76	init ();	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
77	}	90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
78		94
79	configuration::~configuration ()	95	return false;
80	{
81	cleanup ();
82	}	96	}
83		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	conf_node::~conf_node ()
		111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
		115	if (rsa_key)
		116	RSA_free (rsa_key);
		117
		118	free (nodename);
		119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
		126	}
		127
		128	void
84	void configuration::init ()	129	configuration::init ()
85	{	130	{
86	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
87		132
		133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
88	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
89	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
90	llevel = L_INFO;	137	llevel = L_INFO;
91	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
		139	#if ENABLE_ICMP
		140	icmp_type = ICMP_ECHOREPLY;
		141	#endif
92		142
93	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
94	default_node.tcp_port = DEFAULT_UDPPORT;	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
95	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
96	default_node.compress = true;	146	default_node.compress = true;
97	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
98	}	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 ("");
99		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
100	void configuration::cleanup()	168	configuration::cleanup ()
101	{	169	{
102	if (rsa_key)	170	if (rsa_key)
103	RSA_free (rsa_key);	171	RSA_free (rsa_key);
104		172
105	free (ifname);
106
107	rsa_key = 0;	173	rsa_key = 0;
108	ifname = 0;	174
		175	free (pidfilename); pidfilename = 0;
		176	free (ifname); ifname = 0;
		177	#if ENABLE_HTTP_PROXY
		178	free (proxy_host); proxy_host = 0;
		179	free (proxy_auth); proxy_auth = 0;
		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;
109	}	188	}
110		189
111	void	190	void
112	configuration::clear_config ()	191	configuration::clear ()
113	{	192	{
114	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)
115	delete *i;	194	delete *i;
116		195
117	nodes.clear ();	196	nodes.clear ();
118		197
119	cleanup ();	198	cleanup ();
120	init ();	199	init ();
121	}	200	}
122		201
123	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
124	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
125	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
126	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
127	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
128	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
129	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
130	else \	209	else \
131	slog (L_WARN, \	210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
132	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	211	} while (0)
133	name, var, fname, lineno);
134		212
135	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)
136	{	541	{
137	char *fname;	542	char *fname;
138	FILE *f;	543	FILE *f;
139		544
140	clear_config ();	545	conf.clear ();
141		546
142	asprintf (&fname, "%s/vped.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
143	f = fopen (fname, "r");	548	f = fopen (fname, "r");
144		549
145	if (f)	550	if (f)
146	{	551	{
147	char line[16384];	552	char line[16384];
148	int lineno = 0;	553	int lineno = 0;
149	char var, val;	554	node = &conf.default_node;
150	conf_node *node = &default_node;
151		555
152	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
153	{	557	{
154	lineno++;	558	lineno++;
155		559
156	{	560	const char *warn = parse_line (line);
157	char *end = line + strlen (line);
158		561
159	while (*end < ' ' && end >= line)	562	if (warn)
160	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
161
162	*++end = 0;
163	}
164
165	char *tok = line;
166
167	retry:
168	var = strtok (tok, "\t =");
169	tok = 0;
170
171	if (!var \|\| !var[0])
172	continue; /* no tokens on this line */
173
174	if (var[0] == '#')
175	continue; /* comment: ignore */
176
177	val = strtok (NULL, "\t\n\r =");
178
179	if (!val \|\| val[0] == '#')
180	{
181	slog (L_WARN,
182	_("no value for variable `%s', at '%s' line %d"),
183	var, fname, lineno);
184	break;
185	}
186
187	if (!strcmp (var, "on"))
188	{
189	if (!::thisnode
190	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
191	\|\| !strcmp (val, ::thisnode))
192	goto retry;
193
194	continue;
195	}
196
197	// truly global
198	if (!strcmp (var, "loglevel"))
199	{
200	loglevel l = string_to_loglevel (val);
201
202	if (l != L_NONE)
203	llevel = l;
204	else
205	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
206	}
207	else if (!strcmp (var, "ip-proto"))
208	ip_proto = atoi (val);
209
210	// per config
211	else if (!strcmp (var, "node"))
212	{
213	default_node.id++;
214
215	node = new conf_node (default_node);
216
217	nodes.push_back (node);
218
219	node->nodename = strdup (val);
220
221	{
222	char *fname;
223	FILE *f;
224
225	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
226
227	f = fopen (fname, "r");
228	if (f)
229	{
230	node->rsa_key = RSA_new ();
231
232	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
233	{
234	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
235	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
236	exit (1);
237	}
238
239	RSA_blinding_on (node->rsa_key, 0);
240
241	fclose (f);
242	}
243	else
244	{
245	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
246
247	if (need_keys)
248	exit (1);
249	}
250
251	free (fname);
252	}
253
254	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
255	thisnode = node;
256	}
257	else if (!strcmp (var, "private-key"))
258	prikeyfile = strdup (val);
259	else if (!strcmp (var, "ifpersist"))
260	{
261	parse_bool (ifpersist, "ifpersist", true, false);
262	}
263	else if (!strcmp (var, "ifname"))
264	ifname = strdup (val);
265	else if (!strcmp (var, "rekey"))
266	rekey = atoi (val);
267	else if (!strcmp (var, "keepalive"))
268	keepalive = atoi (val);
269	else if (!strcmp (var, "mtu"))
270	mtu = atoi (val);
271	else if (!strcmp (var, "if-up"))
272	script_if_up = strdup (val);
273	else if (!strcmp (var, "node-up"))
274	script_node_up = strdup (val);
275	else if (!strcmp (var, "node-down"))
276	script_node_down = strdup (val);
277
278	/* node-specific, non-defaultable */
279	else if (node != &default_node && !strcmp (var, "hostname"))
280	{
281	free (node->hostname);
282	node->hostname = strdup (val);
283	}
284
285	/* node-specific, defaultable */
286	else if (!strcmp (var, "udp-port"))
287	node->udp_port = atoi (val);
288	else if (!strcmp (var, "tcp-port"))
289	node->tcp_port = atoi (val);
290	else if (!strcmp (var, "router-priority"))
291	node->routerprio = atoi (val);
292	else if (!strcmp (var, "connect"))
293	{
294	if (!strcmp (val, "ondemand"))
295	node->connectmode = conf_node::C_ONDEMAND;
296	else if (!strcmp (val, "never"))
297	node->connectmode = conf_node::C_NEVER;
298	else if (!strcmp (val, "always"))
299	node->connectmode = conf_node::C_ALWAYS;
300	else if (!strcmp (val, "disabled"))
301	node->connectmode = conf_node::C_DISABLED;
302	else
303	slog (L_WARN,
304	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
305	var, fname, lineno);
306	}
307	else if (!strcmp (var, "inherit-tos"))
308	{
309	parse_bool (node->inherit_tos, "inherit-tos", true, false);
310	}
311	else if (!strcmp (var, "compress"))
312	{
313	parse_bool (node->compress, "compress", true, false);
314	}
315	// all these bool options really really cost a lot of executable size!
316	else if (!strcmp (var, "enable-tcp"))
317	{
318	#if ENABLE_TCP
319	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
320	#endif
321	}
322	else if (!strcmp (var, "enable-udp"))
323	{
324	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
325	}
326	else if (!strcmp (var, "enable-rawip"))
327	{
328	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
329	}
330
331	// unknown or misplaced
332	else
333	{
334	slog (L_WARN,
335	_("unknown or misplaced variable `%s', at '%s' line %d"),
336	var, fname, lineno);
337	}
338	}	564	}
339		565
340	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
341	}	569	}
342	else	570	else
343	{	571	{
344	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));
345	exit (1);	573	exit (EXIT_FAILURE);
346	}	574	}
347		575
348	free (fname);	576	free (fname);
349		577
350	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
351		579
352	f = fopen (fname, "r");	580	f = fopen (fname, "r");
353	if (f)	581	if (f)
354	{	582	{
355	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
356		584
357	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
358	{	586	{
359	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
360	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));
361	exit (1);	589	exit (EXIT_FAILURE);
362	}	590	}
363		591
364	RSA_blinding_on (rsa_key, 0);	592	require (RSA_blinding_on (conf.rsa_key, 0));
365		593
366	fclose (f);	594	fclose (f);
367	}	595	}
368	else	596	else
369	{	597	{
370	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));
371		599
372	if (need_keys)	600	if (need_keys)
373	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);
374	}	611	}
375		612
376	free (fname);	613	free (fname);
377	}
378		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
379	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
380	{	621	{
381	char *fname;	622	char *fname;
382		623
383	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
384		625
…		…
388	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
389	free (rname);	630	free (rname);
390	}	631	}
391		632
392	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	);
393	}	654	}
394		655
395	void	656	void
396	configuration::print ()	657	configuration::print ()
397	{	658	{
…		…
401	printf (_("MTU: %d\n"), mtu);	662	printf (_("MTU: %d\n"), mtu);
402	printf (_("rekeying interval: %d\n"), rekey);	663	printf (_("rekeying interval: %d\n"), rekey);
403	printf (_("keepalive interval: %d\n"), keepalive);	664	printf (_("keepalive interval: %d\n"), keepalive);
404	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
405	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
406	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	667	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
407	printf ("\n");	668	printf ("\n");
408		669
409	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
410	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
411		672
412	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
413	(*i)->print ();	674	(*i)->print ();
414		675
415	printf ("\n");	676	printf ("\n");
416	}	677	}
417		678
418	void	679	configuration::configuration ()
419	conf_node::print ()
420	{	680	{
421	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	681	asprintf (&confbase, "%s/gvpe", CONFDIR);
422	id,
423	id >> 8, id & 0xff,
424	compress ? 'Y' : 'N',
425	connectmode == C_ONDEMAND ? "ondemand" :
426	connectmode == C_NEVER ? "never" :
427	connectmode == C_ALWAYS ? "always" : "",
428	nodename,
429	hostname ? hostname : "",
430	hostname ? ":" : "",
431	hostname ? udp_port : 0
432	);
433	}
434		682
		683	init ();
		684	}
		685
		686	configuration::~configuration ()
		687	{
		688	cleanup ();
		689	}
		690

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Comparing gvpe/src/conf.C (file contents): Revision 1.11 by pcg, Wed Apr 2 21:43:44 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 1.11 by pcg, Wed Apr 2 21:43:44 2003 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC