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

Comparing gvpe/src/conf.C (file contents):
Revision 1.30 by pcg, Thu Mar 3 07:24:57 2005 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) 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
74	void	86	static bool
75	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
76	{	88	{
77	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 (); )
78	id,	90	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	91	return true;
80	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
82	connectmode == C_NEVER ? "never" :	94
83	connectmode == C_ALWAYS ? "always" : "",	95	return false;
84	nodename,	96	}
85	hostname ? hostname : "",	97
86	hostname ? ":" : "",	98	bool
87	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
88	);	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;
89	}	108	}
90		109
91	conf_node::~conf_node ()	110	conf_node::~conf_node ()
92	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
93	if (rsa_key)	115	if (rsa_key)
94	RSA_free (rsa_key);	116	RSA_free (rsa_key);
95		117
96	free (nodename);	118	free (nodename);
97	free (hostname);	119	free (hostname);
		120	free (if_up_data);
98	#if ENABLE_DNS	121	#if ENABLE_DNS
99	free (domain);	122	free (domain);
100	free (dns_hostname);	123	free (dns_hostname);
101	#endif	124	#endif
		125	#endif
102	}	126	}
103		127
		128	void
104	void configuration::init ()	129	configuration::init ()
105	{	130	{
106	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
107		132
108	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
109	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	137	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
113	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	146	default_node.compress = true;
121	default_node.protocols = 0;	147	default_node.protocols = 0;
122	default_node.max_retry = DEFAULT_MAX_RETRY;	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 ("");
123		152
124	#if ENABLE_DNS	153	#if ENABLE_DNS
125	default_node.dns_port = 53;	154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_forw_host = strdup ("127.0.0.1");
126	dns_forw_port = 53;	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;
127	#endif	162	#endif
128		163
129	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
130	}	165	}
131		166
		167	void
132	void configuration::cleanup()	168	configuration::cleanup ()
133	{	169	{
134	if (rsa_key)	170	if (rsa_key)
135	RSA_free (rsa_key);	171	RSA_free (rsa_key);
136		172
137	rsa_key = 0;	173	rsa_key = 0;
138		174
139	free (pidfilename); pidfilename = 0;	175	free (pidfilename); pidfilename = 0;
140	free (ifname); ifname = 0;	176	free (ifname); ifname = 0;
141	#if ENABLE_HTTP_PROXY	177	#if ENABLE_HTTP_PROXY
142	free (proxy_host); proxy_host = 0;	178	free (proxy_host); proxy_host = 0;
143	free (proxy_auth); proxy_auth = 0;	179	free (proxy_auth); proxy_auth = 0;
144	#endif	180	#endif
145	#if ENABLE_DNS	181	#if ENABLE_DNS
146	free (dns_forw_host); dns_forw_host = 0;	182	free (dns_forw_host); dns_forw_host = 0;
147	#endif	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;
148	}	188	}
149		189
150	void	190	void
151	configuration::clear_config ()	191	configuration::clear ()
152	{	192	{
153	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)
154	delete *i;	194	delete *i;
155		195
156	nodes.clear ();	196	nodes.clear ();
157		197
158	cleanup ();	198	cleanup ();
159	init ();	199	init ();
160	}	200	}
161		201
162	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
163	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
164	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
165	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
166	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
167	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
168	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
169	else \	209	else \
170	slog (L_WARN, \	210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
171	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	211	} while (0)
172	name, var, fname, lineno);
173		212
174	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)
175	{	541	{
176	char *fname;	542	char *fname;
177	FILE *f;	543	FILE *f;
178		544
179	clear_config ();	545	conf.clear ();
180		546
181	asprintf (&fname, "%s/gvpe.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
182	f = fopen (fname, "r");	548	f = fopen (fname, "r");
183		549
184	if (f)	550	if (f)
185	{	551	{
186	char line[16384];	552	char line[16384];
187	int lineno = 0;	553	int lineno = 0;
188	char var, val;	554	node = &conf.default_node;
189	conf_node *node = &default_node;
190		555
191	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
192	{	557	{
193	lineno++;	558	lineno++;
194		559
195	{	560	const char *warn = parse_line (line);
196	char *end = line + strlen (line);
197		561
198	while (*end < ' ' && end >= line)	562	if (warn)
199	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
200
201	*++end = 0;
202	}
203
204	char *tok = line;
205
206	retry:
207	var = strtok (tok, "\t =");
208	tok = 0;
209
210	if (!var \|\| !var[0])
211	continue; /* no tokens on this line */
212
213	if (var[0] == '#')
214	continue; /* comment: ignore */
215
216	val = strtok (NULL, "\t\n\r =");
217
218	if (!val \|\| val[0] == '#')
219	{
220	slog (L_WARN,
221	_("no value for variable `%s', at '%s' line %d"),
222	var, fname, lineno);
223	break;
224	}
225
226	if (!strcmp (var, "on"))
227	{
228	if (!::thisnode
229	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
230	\|\| !strcmp (val, ::thisnode))
231	goto retry;
232
233	continue;
234	}
235
236	// truly global
237	if (!strcmp (var, "loglevel"))
238	{
239	loglevel l = string_to_loglevel (val);
240
241	if (l != L_NONE)
242	llevel = l;
243	else
244	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
245	}
246	else if (!strcmp (var, "ip-proto"))
247	ip_proto = atoi (val);
248	else if (!strcmp (var, "icmp-type"))
249	{
250	#if ENABLE_ICMP
251	icmp_type = atoi (val);
252	#endif
253	}
254
255	// per config
256	else if (!strcmp (var, "node"))
257	{
258	default_node.id++;
259
260	node = new conf_node (default_node);
261
262	nodes.push_back (node);
263
264	node->nodename = strdup (val);
265
266	{
267	char *fname;
268	FILE *f;
269
270	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
271
272	f = fopen (fname, "r");
273	if (f)
274	{
275	node->rsa_key = RSA_new ();
276
277	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
278	{
279	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
280	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
281	exit (EXIT_FAILURE);
282	}
283
284	require (RSA_blinding_on (node->rsa_key, 0));
285
286	fclose (f);
287	}
288	else
289	{
290	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
291
292	if (need_keys)
293	exit (EXIT_FAILURE);
294	}
295
296	free (fname);
297	}
298
299	if (::thisnode && !strcmp (node->nodename, ::thisnode))
300	thisnode = node;
301	}
302	else if (!strcmp (var, "private-key"))
303	free (prikeyfile), prikeyfile = strdup (val);
304	else if (!strcmp (var, "ifpersist"))
305	{
306	parse_bool (ifpersist, "ifpersist", true, false);
307	}
308	else if (!strcmp (var, "ifname"))
309	free (ifname), ifname = strdup (val);
310	else if (!strcmp (var, "rekey"))
311	rekey = atoi (val);
312	else if (!strcmp (var, "keepalive"))
313	keepalive = atoi (val);
314	else if (!strcmp (var, "mtu"))
315	mtu = atoi (val);
316	else if (!strcmp (var, "if-up"))
317	free (script_if_up), script_if_up = strdup (val);
318	else if (!strcmp (var, "node-up"))
319	free (script_node_up), script_node_up = strdup (val);
320	else if (!strcmp (var, "node-down"))
321	free (script_node_down), script_node_down = strdup (val);
322	else if (!strcmp (var, "pid-file"))
323	free (pidfilename), pidfilename = strdup (val);
324	#if ENABLE_DNS
325	else if (!strcmp (var, "dns-forw-host"))
326	free (dns_forw_host), dns_forw_host = strdup (val);
327	else if (!strcmp (var, "dns-forw-port"))
328	dns_forw_port = atoi (val);
329	#endif
330	else if (!strcmp (var, "http-proxy-host"))
331	{
332	#if ENABLE_HTTP_PROXY
333	free (proxy_host), proxy_host = strdup (val);
334	#endif
335	}
336	else if (!strcmp (var, "http-proxy-port"))
337	{
338	#if ENABLE_HTTP_PROXY
339	proxy_port = atoi (val);
340	#endif
341	}
342	else if (!strcmp (var, "http-proxy-auth"))
343	{
344	#if ENABLE_HTTP_PROXY
345	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
346	#endif
347	}
348
349	/* node-specific, non-defaultable */
350	else if (node != &default_node && !strcmp (var, "hostname"))
351	free (node->hostname), node->hostname = strdup (val);
352
353	/* node-specific, defaultable */
354	else if (!strcmp (var, "udp-port"))
355	node->udp_port = atoi (val);
356	else if (!strcmp (var, "tcp-port"))
357	node->tcp_port = atoi (val);
358	#if ENABLE_DNS
359	else if (!strcmp (var, "dns-hostname"))
360	free (node->dns_hostname), node->dns_hostname = strdup (val);
361	else if (!strcmp (var, "dns-port"))
362	node->dns_port = atoi (val);
363	#endif
364	else if (!strcmp (var, "dns-domain"))
365	{
366	#if ENABLE_DNS
367	free (node->domain), node->domain = strdup (val);
368	#endif
369	}
370	else if (!strcmp (var, "router-priority"))
371	node->routerprio = atoi (val);
372	else if (!strcmp (var, "max-retry"))
373	node->max_retry = atoi (val);
374	else if (!strcmp (var, "connect"))
375	{
376	if (!strcmp (val, "ondemand"))
377	node->connectmode = conf_node::C_ONDEMAND;
378	else if (!strcmp (val, "never"))
379	node->connectmode = conf_node::C_NEVER;
380	else if (!strcmp (val, "always"))
381	node->connectmode = conf_node::C_ALWAYS;
382	else if (!strcmp (val, "disabled"))
383	node->connectmode = conf_node::C_DISABLED;
384	else
385	slog (L_WARN,
386	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
387	var, fname, lineno);
388	}
389	else if (!strcmp (var, "inherit-tos"))
390	{
391	parse_bool (node->inherit_tos, "inherit-tos", true, false);
392	}
393	else if (!strcmp (var, "compress"))
394	{
395	parse_bool (node->compress, "compress", true, false);
396	}
397	// all these bool options really really cost a lot of executable size!
398	else if (!strcmp (var, "enable-tcp"))
399	{
400	#if ENABLE_TCP
401	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
402	#endif
403	}
404	else if (!strcmp (var, "enable-icmp"))
405	{
406	#if ENABLE_ICMP
407	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
408	#endif
409	}
410	else if (!strcmp (var, "enable-dns"))
411	{
412	#if ENABLE_DNS
413	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
414	#endif
415	}
416	else if (!strcmp (var, "enable-udp"))
417	{
418	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
419	}
420	else if (!strcmp (var, "enable-rawip"))
421	{
422	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
423	}
424
425	// unknown or misplaced
426	else
427	slog (L_WARN,
428	_("unknown or misplaced variable `%s', at '%s' line %d"),
429	var, fname, lineno);
430	}	564	}
431		565
432	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
433	}	569	}
434	else	570	else
435	{	571	{
436	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));
437	exit (EXIT_FAILURE);	573	exit (EXIT_FAILURE);
438	}	574	}
439		575
440	free (fname);	576	free (fname);
441		577
442	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
443		579
444	f = fopen (fname, "r");	580	f = fopen (fname, "r");
445	if (f)	581	if (f)
446	{	582	{
447	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
448		584
449	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
450	{	586	{
451	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
452	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));
453	exit (EXIT_FAILURE);	589	exit (EXIT_FAILURE);
454	}	590	}
455		591
456	require (RSA_blinding_on (rsa_key, 0));	592	require (RSA_blinding_on (conf.rsa_key, 0));
457		593
458	fclose (f);	594	fclose (f);
459	}	595	}
460	else	596	else
461	{	597	{
…		…
464	if (need_keys)	600	if (need_keys)
465	exit (EXIT_FAILURE);	601	exit (EXIT_FAILURE);
466	}	602	}
467		603
468	if (need_keys && ::thisnode	604	if (need_keys && ::thisnode
469	&& rsa_key && thisnode && thisnode->rsa_key)	605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
470	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	606	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
471	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
472	{	608	{
473	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	609	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
474	exit (EXIT_FAILURE);	610	exit (EXIT_FAILURE);
475	}	611	}
476		612
477	free (fname);	613	free (fname);
478	}
479		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
480	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
481	{	621	{
482	char *fname;	622	char *fname;
483		623
484	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
485		625
…		…
489	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
490	free (rname);	630	free (rname);
491	}	631	}
492		632
493	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	);
494	}	654	}
495		655
496	void	656	void
497	configuration::print ()	657	configuration::print ()
498	{	658	{
…		…
505	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
506	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
507	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);
508	printf ("\n");	668	printf ("\n");
509		669
510	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
511	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
512		672
513	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
514	(*i)->print ();	674	(*i)->print ();
515		675
516	printf ("\n");	676	printf ("\n");
…		…
526	configuration::~configuration ()	686	configuration::~configuration ()
527	{	687	{
528	cleanup ();	688	cleanup ();
529	}	689	}
530		690
531

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing gvpe/src/conf.C (file contents): Revision 1.30 by pcg, Thu Mar 3 07:24:57 2005 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 1.30 by pcg, Thu Mar 3 07:24:57 2005 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC