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

Comparing gvpe/src/conf.C (file contents):
Revision 1.28 by pcg, Tue Mar 1 04:38:21 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);
		121	#if ENABLE_DNS
98	free (domain);	122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
99	}	126	}
100		127
		128	void
101	void configuration::init ()	129	configuration::init ()
102	{	130	{
103	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
104		132
105	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
106	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
107	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
108	llevel = L_INFO;	137	llevel = L_INFO;
109	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
110	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
113		142
114	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
115	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
117	default_node.compress = true;	146	default_node.compress = true;
118	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
119	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 ("");
		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
120		163
121	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
122	}	165	}
123		166
		167	void
124	void configuration::cleanup()	168	configuration::cleanup ()
125	{	169	{
126	if (rsa_key)	170	if (rsa_key)
127	RSA_free (rsa_key);	171	RSA_free (rsa_key);
128		172
129	rsa_key = 0;	173	rsa_key = 0;
130		174
131	free (pidfilename); pidfilename = 0;	175	free (pidfilename); pidfilename = 0;
132	free (ifname); ifname = 0;	176	free (ifname); ifname = 0;
133	#if ENABLE_HTTP_PROXY	177	#if ENABLE_HTTP_PROXY
134	free (proxy_host); proxy_host = 0;	178	free (proxy_host); proxy_host = 0;
135	free (proxy_auth); proxy_auth = 0;	179	free (proxy_auth); proxy_auth = 0;
136	#endif	180	#endif
137	#if ENABLE_DNS	181	#if ENABLE_DNS
138	free (dns_forw_host); dns_forw_host = 0;	182	free (dns_forw_host); dns_forw_host = 0;
139	#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;
140	}	188	}
141		189
142	void	190	void
143	configuration::clear_config ()	191	configuration::clear ()
144	{	192	{
145	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)
146	delete *i;	194	delete *i;
147		195
148	nodes.clear ();	196	nodes.clear ();
149		197
150	cleanup ();	198	cleanup ();
151	init ();	199	init ();
152	}	200	}
153		201
154	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
155	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
156	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
157	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
158	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
159	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
160	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
161	else \	209	else \
162	slog (L_WARN, \	210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
163	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	211	} while (0)
164	name, var, fname, lineno);
165		212
166	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)
167	{	541	{
168	char *fname;	542	char *fname;
169	FILE *f;	543	FILE *f;
170		544
171	clear_config ();	545	conf.clear ();
172		546
173	asprintf (&fname, "%s/gvpe.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
174	f = fopen (fname, "r");	548	f = fopen (fname, "r");
175		549
176	if (f)	550	if (f)
177	{	551	{
178	char line[16384];	552	char line[16384];
179	int lineno = 0;	553	int lineno = 0;
180	char var, val;	554	node = &conf.default_node;
181	conf_node *node = &default_node;
182		555
183	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
184	{	557	{
185	lineno++;	558	lineno++;
186		559
187	{	560	const char *warn = parse_line (line);
188	char *end = line + strlen (line);
189		561
190	while (*end < ' ' && end >= line)	562	if (warn)
191	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
192
193	*++end = 0;
194	}
195
196	char *tok = line;
197
198	retry:
199	var = strtok (tok, "\t =");
200	tok = 0;
201
202	if (!var \|\| !var[0])
203	continue; /* no tokens on this line */
204
205	if (var[0] == '#')
206	continue; /* comment: ignore */
207
208	val = strtok (NULL, "\t\n\r =");
209
210	if (!val \|\| val[0] == '#')
211	{
212	slog (L_WARN,
213	_("no value for variable `%s', at '%s' line %d"),
214	var, fname, lineno);
215	break;
216	}
217
218	if (!strcmp (var, "on"))
219	{
220	if (!::thisnode
221	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
222	\|\| !strcmp (val, ::thisnode))
223	goto retry;
224
225	continue;
226	}
227
228	// truly global
229	if (!strcmp (var, "loglevel"))
230	{
231	loglevel l = string_to_loglevel (val);
232
233	if (l != L_NONE)
234	llevel = l;
235	else
236	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
237	}
238	else if (!strcmp (var, "ip-proto"))
239	ip_proto = atoi (val);
240	else if (!strcmp (var, "icmp-type"))
241	{
242	#if ENABLE_ICMP
243	icmp_type = atoi (val);
244	#endif
245	}
246
247	// per config
248	else if (!strcmp (var, "node"))
249	{
250	default_node.id++;
251
252	node = new conf_node (default_node);
253
254	nodes.push_back (node);
255
256	node->nodename = strdup (val);
257
258	{
259	char *fname;
260	FILE *f;
261
262	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
263
264	f = fopen (fname, "r");
265	if (f)
266	{
267	node->rsa_key = RSA_new ();
268
269	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
270	{
271	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
272	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
273	exit (EXIT_FAILURE);
274	}
275
276	require (RSA_blinding_on (node->rsa_key, 0));
277
278	fclose (f);
279	}
280	else
281	{
282	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
283
284	if (need_keys)
285	exit (EXIT_FAILURE);
286	}
287
288	free (fname);
289	}
290
291	if (::thisnode && !strcmp (node->nodename, ::thisnode))
292	thisnode = node;
293	}
294	else if (!strcmp (var, "private-key"))
295	free (prikeyfile), prikeyfile = strdup (val);
296	else if (!strcmp (var, "ifpersist"))
297	{
298	parse_bool (ifpersist, "ifpersist", true, false);
299	}
300	else if (!strcmp (var, "ifname"))
301	free (ifname), ifname = strdup (val);
302	else if (!strcmp (var, "rekey"))
303	rekey = atoi (val);
304	else if (!strcmp (var, "keepalive"))
305	keepalive = atoi (val);
306	else if (!strcmp (var, "mtu"))
307	mtu = atoi (val);
308	else if (!strcmp (var, "if-up"))
309	free (script_if_up), script_if_up = strdup (val);
310	else if (!strcmp (var, "node-up"))
311	free (script_node_up), script_node_up = strdup (val);
312	else if (!strcmp (var, "node-down"))
313	free (script_node_down), script_node_down = strdup (val);
314	else if (!strcmp (var, "pid-file"))
315	free (pidfilename), pidfilename = strdup (val);
316	else if (!strcmp (var, "dns-forwarder-host"))
317	{
318	#if ENABLE_DNS
319	free (dns_forw_host), dns_forw_host = strdup (val);
320	#endif
321	}
322	else if (!strcmp (var, "dns-forwarder-port"))
323	{
324	#if ENABLE_DNS
325	dns_forw_port = atoi (val);
326	#endif
327	}
328	else if (!strcmp (var, "http-proxy-host"))
329	{
330	#if ENABLE_HTTP_PROXY
331	free (proxy_host), proxy_host = strdup (val);
332	#endif
333	}
334	else if (!strcmp (var, "http-proxy-port"))
335	{
336	#if ENABLE_HTTP_PROXY
337	proxy_port = atoi (val);
338	#endif
339	}
340	else if (!strcmp (var, "http-proxy-auth"))
341	{
342	#if ENABLE_HTTP_PROXY
343	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
344	#endif
345	}
346
347	/* node-specific, non-defaultable */
348	else if (node != &default_node && !strcmp (var, "hostname"))
349	free (node->hostname), node->hostname = strdup (val);
350
351	/* node-specific, defaultable */
352	else if (!strcmp (var, "udp-port"))
353	node->udp_port = atoi (val);
354	else if (!strcmp (var, "tcp-port"))
355	node->tcp_port = atoi (val);
356	else if (!strcmp (var, "dns-port"))
357	{
358	#if ENABLE_DNS
359	node->dns_port = atoi (val);
360	#endif
361	}
362	else if (!strcmp (var, "dns-domain"))
363	{
364	#if ENABLE_DNS
365	free (node->domain), node->domain = strdup (val);
366	#endif
367	}
368	else if (!strcmp (var, "router-priority"))
369	node->routerprio = atoi (val);
370	else if (!strcmp (var, "max-retry"))
371	node->max_retry = atoi (val);
372	else if (!strcmp (var, "connect"))
373	{
374	if (!strcmp (val, "ondemand"))
375	node->connectmode = conf_node::C_ONDEMAND;
376	else if (!strcmp (val, "never"))
377	node->connectmode = conf_node::C_NEVER;
378	else if (!strcmp (val, "always"))
379	node->connectmode = conf_node::C_ALWAYS;
380	else if (!strcmp (val, "disabled"))
381	node->connectmode = conf_node::C_DISABLED;
382	else
383	slog (L_WARN,
384	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
385	var, fname, lineno);
386	}
387	else if (!strcmp (var, "inherit-tos"))
388	{
389	parse_bool (node->inherit_tos, "inherit-tos", true, false);
390	}
391	else if (!strcmp (var, "compress"))
392	{
393	parse_bool (node->compress, "compress", true, false);
394	}
395	// all these bool options really really cost a lot of executable size!
396	else if (!strcmp (var, "enable-tcp"))
397	{
398	#if ENABLE_TCP
399	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
400	#endif
401	}
402	else if (!strcmp (var, "enable-icmp"))
403	{
404	#if ENABLE_ICMP
405	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
406	#endif
407	}
408	else if (!strcmp (var, "enable-dns"))
409	{
410	#if ENABLE_DNS
411	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
412	#endif
413	}
414	else if (!strcmp (var, "enable-udp"))
415	{
416	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
417	}
418	else if (!strcmp (var, "enable-rawip"))
419	{
420	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
421	}
422
423	// unknown or misplaced
424	else
425	slog (L_WARN,
426	_("unknown or misplaced variable `%s', at '%s' line %d"),
427	var, fname, lineno);
428	}	564	}
429		565
430	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
431	}	569	}
432	else	570	else
433	{	571	{
434	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));
435	exit (EXIT_FAILURE);	573	exit (EXIT_FAILURE);
436	}	574	}
437		575
438	free (fname);	576	free (fname);
439		577
440	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
441		579
442	f = fopen (fname, "r");	580	f = fopen (fname, "r");
443	if (f)	581	if (f)
444	{	582	{
445	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
446		584
447	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
448	{	586	{
449	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
450	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));
451	exit (EXIT_FAILURE);	589	exit (EXIT_FAILURE);
452	}	590	}
453		591
454	require (RSA_blinding_on (rsa_key, 0));	592	require (RSA_blinding_on (conf.rsa_key, 0));
455		593
456	fclose (f);	594	fclose (f);
457	}	595	}
458	else	596	else
459	{	597	{
…		…
462	if (need_keys)	600	if (need_keys)
463	exit (EXIT_FAILURE);	601	exit (EXIT_FAILURE);
464	}	602	}
465		603
466	if (need_keys && ::thisnode	604	if (need_keys && ::thisnode
467	&& rsa_key && thisnode && thisnode->rsa_key)	605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
468	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
469	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
470	{	608	{
471	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);
472	exit (EXIT_FAILURE);	610	exit (EXIT_FAILURE);
473	}	611	}
474		612
475	free (fname);	613	free (fname);
476	}
477		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
478	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
479	{	621	{
480	char *fname;	622	char *fname;
481		623
482	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
483		625
…		…
487	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
488	free (rname);	630	free (rname);
489	}	631	}
490		632
491	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	);
492	}	654	}
493		655
494	void	656	void
495	configuration::print ()	657	configuration::print ()
496	{	658	{
…		…
503	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
504	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
505	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);
506	printf ("\n");	668	printf ("\n");
507		669
508	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
509	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
510		672
511	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
512	(*i)->print ();	674	(*i)->print ();
513		675
514	printf ("\n");	676	printf ("\n");
…		…
524	configuration::~configuration ()	686	configuration::~configuration ()
525	{	687	{
526	cleanup ();	688	cleanup ();
527	}	689	}
528		690
529

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Comparing gvpe/src/conf.C (file contents): Revision 1.28 by pcg, Tue Mar 1 04:38:21 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 1.28 by pcg, Tue Mar 1 04:38:21 2005 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC