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

Comparing gvpe/src/conf.C (file contents):
Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 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	#include <netinet/icmp.h>
38		45
39	#include <openssl/err.h>	46	#include <openssl/err.h>
40	#include <openssl/pem.h>	47	#include <openssl/pem.h>
41	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
42	#include <openssl/rand.h>	49	#include <openssl/rand.h>
43		50	#include <openssl/bn.h>
44	#include "gettext.h"
45		51
46	#include "conf.h"	52	#include "conf.h"
47	#include "slog.h"	53	#include "slog.h"
48	#include "util.h"	54	#include "util.h"
49		55
50	char *confbase;	56	char *confbase;
51	char *thisnode;	57	char *thisnode;
52	char *identname;	58	char *identname;
53	char *pidfilename;
54		59
55	struct configuration conf;	60	struct configuration conf;
56		61
		62	u8
57	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
58	{	64	{
59	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
60	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
61	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
62	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
63		70
64	return 0;	71	return 0;
65	}	72	}
66		73
		74	const char *
67	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
68	{	76	{
69	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
70	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
71	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
72	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
73		82
74	return "<unknown>";	83	return "<unknown>";
		84	}
		85
		86	static bool
		87	match_list (const vector<const char > &list, const char str)
		88	{
		89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
		90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
		94
		95	return false;
		96	}
		97
		98	bool
		99	conf_node::may_direct (struct conf_node *other)
		100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
75	}	108	}
76		109
77	void	110	void
78	conf_node::print ()	111	conf_node::print ()
79	{	112	{
80	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	113	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",
81	id,	114	id,
82	id >> 8, id & 0xff,	115	id >> 8, id & 0xff,
83	compress ? 'Y' : 'N',	116	compress ? 'Y' : 'N',
84	connectmode == C_ONDEMAND ? "ondemand" :	117	connectmode == C_ONDEMAND ? "ondemand"
85	connectmode == C_NEVER ? "never" :	118	: connectmode == C_NEVER ? "never"
86	connectmode == C_ALWAYS ? "always" : "",	119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
87	nodename,	122	nodename,
88	hostname ? hostname : "",	123	hostname ? hostname : "",
89	hostname ? ":" : "",	124	hostname ? ":" : "",
90	hostname ? udp_port : 0	125	hostname ? udp_port : 0
91	);	126	);
92	}	127	}
93		128
94	conf_node::~conf_node ()	129	conf_node::~conf_node ()
95	{	130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
96	if (rsa_key)	134	if (rsa_key)
97	RSA_free (rsa_key);	135	RSA_free (rsa_key);
98		136
99	free (nodename);	137	free (nodename);
100	free (hostname);	138	free (hostname);
		139	free (if_up_data);
		140	#if ENABLE_DNS
		141	free (domain);
		142	free (dns_hostname);
		143	#endif
		144	#endif
101	}	145	}
102		146
		147	void
103	void configuration::init ()	148	configuration::init ()
104	{	149	{
105	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
106		151
		152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
107	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
108	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
109	llevel = L_INFO;	156	llevel = L_INFO;
110	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
		158	#if ENABLE_ICMP
111	icmp_type = ICMP_ECHOREPLY;	159	icmp_type = ICMP_ECHOREPLY;
		160	#endif
112		161
113	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT;	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	165	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
118	}	167	default_node.max_retry = DEFAULT_MAX_RETRY;
		168	default_node.max_ttl = DEFAULT_MAX_TTL;
		169	default_node.max_queue = DEFAULT_MAX_QUEUE;
		170	default_node.if_up_data = strdup ("");
119		171
		172	#if ENABLE_DNS
		173	default_node.dns_port = 0; // default is 0 == client
		174
		175	dns_forw_host = strdup ("127.0.0.1");
		176	dns_forw_port = 53;
		177	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		178	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		179	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		180	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		181	#endif
		182
		183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		184	}
		185
		186	void
120	void configuration::cleanup()	187	configuration::cleanup ()
121	{	188	{
122	if (rsa_key)	189	if (rsa_key)
123	RSA_free (rsa_key);	190	RSA_free (rsa_key);
124		191
125	rsa_key = 0;	192	rsa_key = 0;
126		193
127	free (ifname); ifname = 0;	194	free (pidfilename); pidfilename = 0;
128	#if ENABLE_HTTP_PROXY	195	free (ifname); ifname = 0;
		196	#if ENABLE_HTTP_PROXY
129	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
130	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
		199	#endif
		200	#if ENABLE_DNS
		201	free (dns_forw_host); dns_forw_host = 0;
131	#endif	202	#endif
		203	free (script_if_up); script_if_up = 0;
		204	free (script_node_up); script_node_up = 0;
		205	free (script_node_change); script_node_change = 0;
		206	free (script_node_down); script_node_down = 0;
132	}	207	}
133		208
134	void	209	void
135	configuration::clear_config ()	210	configuration::clear ()
136	{	211	{
137	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	212	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
138	delete *i;	213	delete *i;
139		214
140	nodes.clear ();	215	nodes.clear ();
141		216
142	cleanup ();	217	cleanup ();
143	init ();	218	init ();
144	}	219	}
145		220
146	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
147	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
148	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
149	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
150	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
151	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
152	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
153	else \	228	else \
154	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
155	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
156	name, var, fname, lineno);
157		231
158	void configuration::read_config (bool need_keys)	232	const char *
		233	configuration_parser::parse_line (char *line)
		234	{
		235	{
		236	char *end = line + strlen (line);
		237
		238	while (*end < ' ' && end >= line)
		239	end--;
		240
		241	*++end = 0;
		242	}
		243
		244	char *tok = line;
		245	const char *var = strtok (tok, "\t =");
		246	tok = 0;
		247
		248	if (!var \|\| !var[0])
		249	return 0; /* no tokens on this line */
		250
		251	if (var[0] == '#')
		252	return 0; /* comment: ignore */
		253
		254	char *val = strtok (NULL, "\t\n\r =");
		255
		256	if (!val \|\| val[0] == '#')
		257	return _("no value given for variable. (ignored)");
		258
		259	if (!strcmp (var, "on"))
		260	{
		261	if (!::thisnode
		262	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		263	\|\| !strcmp (val, ::thisnode))
		264	return parse_line (strtok (NULL, "\n\r"));
		265	else
		266	return 0;
		267	}
		268
		269	// truly global
		270	if (!strcmp (var, "loglevel"))
		271	{
		272	loglevel l = string_to_loglevel (val);
		273
		274	if (l == L_NONE)
		275	return _("unknown loglevel. (skipping)");
		276	}
		277	else if (!strcmp (var, "ip-proto"))
		278	conf.ip_proto = atoi (val);
		279	else if (!strcmp (var, "icmp-type"))
		280	{
		281	#if ENABLE_ICMP
		282	conf.icmp_type = atoi (val);
		283	#endif
		284	}
		285
		286	// per config
		287	else if (!strcmp (var, "node"))
		288	{
		289	parse_argv ();
		290
		291	conf.default_node.id++;
		292	node = new conf_node (conf.default_node);
		293	conf.nodes.push_back (node);
		294	node->nodename = strdup (val);
		295
		296	{
		297	char *fname;
		298	FILE *f;
		299
		300	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		301
		302	f = fopen (fname, "r");
		303	if (f)
		304	{
		305	node->rsa_key = RSA_new ();
		306
		307	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		308	{
		309	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		310	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		311	exit (EXIT_FAILURE);
		312	}
		313
		314	require (RSA_blinding_on (node->rsa_key, 0));
		315
		316	fclose (f);
		317	}
		318	else
		319	{
		320	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		321
		322	if (need_keys)
		323	exit (EXIT_FAILURE);
		324	}
		325
		326	free (fname);
		327	}
		328
		329	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		330	conf.thisnode = node;
		331	}
		332	else if (!strcmp (var, "private-key"))
		333	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		334	else if (!strcmp (var, "ifpersist"))
		335	parse_bool (conf.ifpersist, "ifpersist", true, false);
		336	else if (!strcmp (var, "ifname"))
		337	free (conf.ifname), conf.ifname = strdup (val);
		338	else if (!strcmp (var, "rekey"))
		339	conf.rekey = atoi (val);
		340	else if (!strcmp (var, "keepalive"))
		341	conf.keepalive = atoi (val);
		342	else if (!strcmp (var, "mtu"))
		343	conf.mtu = atoi (val);
		344	else if (!strcmp (var, "nfmark"))
		345	conf.nfmark = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "http-proxy-host"))
		393	{
		394	#if ENABLE_HTTP_PROXY
		395	free (conf.proxy_host), conf.proxy_host = strdup (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-port"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	conf.proxy_port = atoi (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-auth"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		408	#endif
		409	}
		410
		411	/* node-specific, non-defaultable */
		412	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		413	free (node->hostname), node->hostname = strdup (val);
		414
		415	/* node-specific, defaultable */
		416	else if (!strcmp (var, "udp-port"))
		417	node->udp_port = atoi (val);
		418	else if (!strcmp (var, "tcp-port"))
		419	node->tcp_port = atoi (val);
		420	else if (!strcmp (var, "dns-hostname"))
		421	{
		422	#if ENABLE_DNS
		423	free (node->dns_hostname), node->dns_hostname = strdup (val);
		424	#endif
		425	}
		426	else if (!strcmp (var, "dns-port"))
		427	{
		428	#if ENABLE_DNS
		429	node->dns_port = atoi (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-domain"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->domain), node->domain = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "if-up-data"))
		439	free (node->if_up_data), node->if_up_data = strdup (val);
		440	else if (!strcmp (var, "router-priority"))
		441	node->routerprio = atoi (val);
		442	else if (!strcmp (var, "max-retry"))
		443	node->max_retry = atoi (val);
		444	else if (!strcmp (var, "connect"))
		445	{
		446	if (!strcmp (val, "ondemand"))
		447	node->connectmode = conf_node::C_ONDEMAND;
		448	else if (!strcmp (val, "never"))
		449	node->connectmode = conf_node::C_NEVER;
		450	else if (!strcmp (val, "always"))
		451	node->connectmode = conf_node::C_ALWAYS;
		452	else if (!strcmp (val, "disabled"))
		453	node->connectmode = conf_node::C_DISABLED;
		454	else
		455	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		456	}
		457	else if (!strcmp (var, "inherit-tos"))
		458	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		459	else if (!strcmp (var, "compress"))
		460	parse_bool (node->compress, "compress", true, false);
		461	// all these bool options really really cost a lot of executable size!
		462	else if (!strcmp (var, "enable-tcp"))
		463	{
		464	#if ENABLE_TCP
		465	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		466	#endif
		467	}
		468	else if (!strcmp (var, "enable-icmp"))
		469	{
		470	#if ENABLE_ICMP
		471	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-dns"))
		475	{
		476	#if ENABLE_DNS
		477	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-udp"))
		481	{
		482	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		483	}
		484	else if (!strcmp (var, "enable-rawip"))
		485	{
		486	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		487	}
		488	else if (!strcmp (var, "allow-direct"))
		489	node->allow_direct.push_back (strdup (val));
		490	else if (!strcmp (var, "deny-direct"))
		491	node->deny_direct.push_back (strdup (val));
		492	else if (!strcmp (var, "max-ttl"))
		493	node->max_ttl = atof (val);
		494	else if (!strcmp (var, "max-queue"))
		495	node->max_queue = atoi (val);
		496
		497	// unknown or misplaced
		498	else
		499	return _("unknown configuration directive. (ignored)");
		500
		501	return 0;
		502	}
		503
		504	void
		505	conf_node::finalise ()
		506	{
		507	if (max_queue < 1)
		508	{
		509	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		510	max_queue = 1;
		511	}
		512
		513	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		514	{
		515	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		516	connectmode = C_ALWAYS;
		517	}
		518	}
		519
		520	void
		521	configuration_parser::parse_argv ()
		522	{
		523	for (int i = 0; i < argc; ++i)
		524	{
		525	char *v = argv [i];
		526
		527	if (!*v)
		528	continue;
		529
		530	char *enode = v;
		531
		532	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		533	enode++;
		534
		535	if (*enode != '.')
		536	enode = 0;
		537
		538	char *wnode = node == &conf.default_node
		539	? 0
		540	: node->nodename;
		541
		542	if ((!wnode && !enode)
		543	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		544	{
		545	const char *warn = parse_line (enode ? enode + 1 : v);
		546
		547	if (warn)
		548	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		549
		550	*v = 0;
		551	}
		552	}
		553	}
		554
		555	configuration_parser::configuration_parser (configuration &conf,
		556	bool need_keys,
		557	int argc,
		558	char **argv)
		559	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
159	{	560	{
160	char *fname;	561	char *fname;
161	FILE *f;	562	FILE *f;
162		563
163	clear_config ();	564	conf.clear ();
164		565
165	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
166	f = fopen (fname, "r");	567	f = fopen (fname, "r");
167		568
168	if (f)	569	if (f)
169	{	570	{
170	char line[16384];	571	char line[16384];
171	int lineno = 0;	572	int lineno = 0;
172	char var, val;	573	node = &conf.default_node;
173	conf_node *node = &default_node;
174		574
175	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
176	{	576	{
177	lineno++;	577	lineno++;
178		578
179	{	579	const char *warn = parse_line (line);
180	char *end = line + strlen (line);
181		580
182	while (*end < ' ' && end >= line)	581	if (warn)
183	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
184
185	*++end = 0;
186	}
187
188	char *tok = line;
189
190	retry:
191	var = strtok (tok, "\t =");
192	tok = 0;
193
194	if (!var \|\| !var[0])
195	continue; /* no tokens on this line */
196
197	if (var[0] == '#')
198	continue; /* comment: ignore */
199
200	val = strtok (NULL, "\t\n\r =");
201
202	if (!val \|\| val[0] == '#')
203	{
204	slog (L_WARN,
205	_("no value for variable `%s', at '%s' line %d"),
206	var, fname, lineno);
207	break;
208	}
209
210	if (!strcmp (var, "on"))
211	{
212	if (!::thisnode
213	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
214	\|\| !strcmp (val, ::thisnode))
215	goto retry;
216
217	continue;
218	}
219
220	// truly global
221	if (!strcmp (var, "loglevel"))
222	{
223	loglevel l = string_to_loglevel (val);
224
225	if (l != L_NONE)
226	llevel = l;
227	else
228	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
229	}
230	else if (!strcmp (var, "ip-proto"))
231	ip_proto = atoi (val);
232	else if (!strcmp (var, "icmp-type"))
233	icmp_type = atoi (val);
234
235	// per config
236	else if (!strcmp (var, "node"))
237	{
238	default_node.id++;
239
240	node = new conf_node (default_node);
241
242	nodes.push_back (node);
243
244	node->nodename = strdup (val);
245
246	{
247	char *fname;
248	FILE *f;
249
250	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
251
252	f = fopen (fname, "r");
253	if (f)
254	{
255	node->rsa_key = RSA_new ();
256
257	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
258	{
259	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
260	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
261	exit (1);
262	}
263
264	RSA_blinding_on (node->rsa_key, 0);
265
266	fclose (f);
267	}
268	else
269	{
270	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
271
272	if (need_keys)
273	exit (1);
274	}
275
276	free (fname);
277	}
278
279	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
280	thisnode = node;
281	}
282	else if (!strcmp (var, "private-key"))
283	prikeyfile = strdup (val);
284	else if (!strcmp (var, "ifpersist"))
285	{
286	parse_bool (ifpersist, "ifpersist", true, false);
287	}
288	else if (!strcmp (var, "ifname"))
289	ifname = strdup (val);
290	else if (!strcmp (var, "rekey"))
291	rekey = atoi (val);
292	else if (!strcmp (var, "keepalive"))
293	keepalive = atoi (val);
294	else if (!strcmp (var, "mtu"))
295	mtu = atoi (val);
296	else if (!strcmp (var, "if-up"))
297	script_if_up = strdup (val);
298	else if (!strcmp (var, "node-up"))
299	script_node_up = strdup (val);
300	else if (!strcmp (var, "node-down"))
301	script_node_down = strdup (val);
302	#if ENABLE_HTTP_PROXY
303	else if (!strcmp (var, "http-proxy-host"))
304	proxy_host = strdup (val);
305	else if (!strcmp (var, "http-proxy-port"))
306	proxy_port = atoi (val);
307	else if (!strcmp (var, "http-proxy-auth"))
308	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
309	#endif
310
311	/* node-specific, non-defaultable */
312	else if (node != &default_node && !strcmp (var, "hostname"))
313	{
314	free (node->hostname);
315	node->hostname = strdup (val);
316	}
317
318	/* node-specific, defaultable */
319	else if (!strcmp (var, "udp-port"))
320	node->udp_port = atoi (val);
321	else if (!strcmp (var, "tcp-port"))
322	node->tcp_port = atoi (val);
323	else if (!strcmp (var, "router-priority"))
324	node->routerprio = atoi (val);
325	else if (!strcmp (var, "connect"))
326	{
327	if (!strcmp (val, "ondemand"))
328	node->connectmode = conf_node::C_ONDEMAND;
329	else if (!strcmp (val, "never"))
330	node->connectmode = conf_node::C_NEVER;
331	else if (!strcmp (val, "always"))
332	node->connectmode = conf_node::C_ALWAYS;
333	else if (!strcmp (val, "disabled"))
334	node->connectmode = conf_node::C_DISABLED;
335	else
336	slog (L_WARN,
337	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
338	var, fname, lineno);
339	}
340	else if (!strcmp (var, "inherit-tos"))
341	{
342	parse_bool (node->inherit_tos, "inherit-tos", true, false);
343	}
344	else if (!strcmp (var, "compress"))
345	{
346	parse_bool (node->compress, "compress", true, false);
347	}
348	// all these bool options really really cost a lot of executable size!
349	else if (!strcmp (var, "enable-tcp"))
350	{
351	#if ENABLE_TCP
352	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
353	#endif
354	}
355	else if (!strcmp (var, "enable-icmp"))
356	{
357	#if ENABLE_ICMP
358	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
359	#endif
360	}
361	else if (!strcmp (var, "enable-udp"))
362	{
363	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
364	}
365	else if (!strcmp (var, "enable-rawip"))
366	{
367	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
368	}
369
370	// unknown or misplaced
371	else
372	slog (L_WARN,
373	_("unknown or misplaced variable `%s', at '%s' line %d"),
374	var, fname, lineno);
375	}	583	}
376		584
377	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
378	}	588	}
379	else	589	else
380	{	590	{
381	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	591	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
382	exit (1);	592	exit (EXIT_FAILURE);
383	}	593	}
384		594
385	free (fname);	595	free (fname);
386		596
387	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
388		598
389	f = fopen (fname, "r");	599	f = fopen (fname, "r");
390	if (f)	600	if (f)
391	{	601	{
392	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
393		603
394	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
395	{	605	{
396	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
397	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	607	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
398	exit (1);	608	exit (EXIT_FAILURE);
399	}	609	}
400		610
401	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
402		612
403	fclose (f);	613	fclose (f);
404	}	614	}
405	else	615	else
406	{	616	{
407	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	617	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
408		618
409	if (need_keys)	619	if (need_keys)
410	exit (1);	620	exit (EXIT_FAILURE);
		621	}
		622
		623	if (need_keys && ::thisnode
		624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		625	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		627	{
		628	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		629	exit (EXIT_FAILURE);
411	}	630	}
412		631
413	free (fname);	632	free (fname);
414	}
415		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
416	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
417	{	640	{
418	char *fname;	641	char *fname;
419		642
420	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
421		644
…		…
438	printf (_("MTU: %d\n"), mtu);	661	printf (_("MTU: %d\n"), mtu);
439	printf (_("rekeying interval: %d\n"), rekey);	662	printf (_("rekeying interval: %d\n"), rekey);
440	printf (_("keepalive interval: %d\n"), keepalive);	663	printf (_("keepalive interval: %d\n"), keepalive);
441	printf (_("interface: %s\n"), ifname);	664	printf (_("interface: %s\n"), ifname);
442	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	665	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
443	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	666	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
444	printf ("\n");	667	printf ("\n");
445		668
446	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	669	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
447	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	670	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
448		671
…		…
452	printf ("\n");	675	printf ("\n");
453	}	676	}
454		677
455	configuration::configuration ()	678	configuration::configuration ()
456	{	679	{
		680	asprintf (&confbase, "%s/gvpe", CONFDIR);
		681
457	init ();	682	init ();
458	}	683	}
459		684
460	configuration::~configuration ()	685	configuration::~configuration ()
461	{	686	{
462	cleanup ();	687	cleanup ();
463	}	688	}
464		689
465

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Comparing gvpe/src/conf.C (file contents): Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs. Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC