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

Comparing gvpe/src/conf.C (file contents):
Revision 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.c -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
37	#include <arpa/inet.h>
38	#ifdef ENABLE_ICMP
39	# ifdef HAVE_NETINET_IN_SYSTM_H
40	# include <netinet/in_systm.h>
41	# endif
42	# ifdef HAVE_NETINET_IP_H
43	# include <netinet/ip.h>
44	# endif
45	# include <netinet/ip_icmp.h>
46	#endif
47		45
48	#include <openssl/err.h>	46	#include <openssl/err.h>
49	#include <openssl/pem.h>	47	#include <openssl/pem.h>
50	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
51	#include <openssl/rand.h>	49	#include <openssl/rand.h>
52		50	#include <openssl/bn.h>
53	#include "gettext.h"
54		51
55	#include "conf.h"	52	#include "conf.h"
56	#include "slog.h"	53	#include "slog.h"
57	#include "util.h"	54	#include "util.h"
58		55
59	char *confbase;	56	char *confbase;
60	char *thisnode;	57	char *thisnode;
61	char *identname;	58	char *identname;
62	char *pidfilename;
63		59
64	struct configuration conf;	60	struct configuration conf;
65		61
		62	u8
66	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
67	{	64	{
68	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
72		70
73	return 0;	71	return 0;
74	}	72	}
75		73
		74	const char *
76	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
77	{	76	{
78	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
79	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
80	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
81	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
82		82
83	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;
84	}	108	}
85		109
86	void	110	void
87	conf_node::print ()	111	conf_node::print ()
88	{	112	{
89	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",
90	id,	114	id,
91	id >> 8, id & 0xff,	115	id >> 8, id & 0xff,
92	compress ? 'Y' : 'N',	116	compress ? 'Y' : 'N',
93	connectmode == C_ONDEMAND ? "ondemand" :	117	connectmode == C_ONDEMAND ? "ondemand"
94	connectmode == C_NEVER ? "never" :	118	: connectmode == C_NEVER ? "never"
95	connectmode == C_ALWAYS ? "always" : "",	119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
96	nodename,	122	nodename,
97	hostname ? hostname : "",	123	hostname ? hostname : "",
98	hostname ? ":" : "",	124	hostname ? ":" : "",
99	hostname ? udp_port : 0	125	hostname ? udp_port : 0
100	);	126	);
101	}	127	}
102		128
103	conf_node::~conf_node ()	129	conf_node::~conf_node ()
104	{	130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
105	if (rsa_key)	134	if (rsa_key)
106	RSA_free (rsa_key);	135	RSA_free (rsa_key);
107		136
108	free (nodename);	137	free (nodename);
109	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
110	}	145	}
111		146
		147	void
112	void configuration::init ()	148	configuration::init ()
113	{	149	{
114	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
115		151
		152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
116	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
117	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
118	llevel = L_INFO;	156	llevel = L_INFO;
119	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
120	#if ENABLE_ICMP	158	#if ENABLE_ICMP
121	icmp_type = ICMP_ECHOREPLY;	159	icmp_type = ICMP_ECHOREPLY;
122	#endif	160	#endif
123		161
124	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
125	default_node.tcp_port = DEFAULT_UDPPORT;	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
126	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
127	default_node.compress = true;	165	default_node.compress = true;
128	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
129	}	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 ("");
130		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
131	void configuration::cleanup()	187	configuration::cleanup ()
132	{	188	{
133	if (rsa_key)	189	if (rsa_key)
134	RSA_free (rsa_key);	190	RSA_free (rsa_key);
135		191
136	rsa_key = 0;	192	rsa_key = 0;
137		193
138	free (ifname); ifname = 0;	194	free (pidfilename); pidfilename = 0;
		195	free (ifname); ifname = 0;
139	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
140	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
141	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
142	#endif	199	#endif
		200	#if ENABLE_DNS
		201	free (dns_forw_host); dns_forw_host = 0;
		202	#endif
		203	free (script_if_up); script_if_up = 0;
		204	free (script_node_up); script_node_up = 0;
		205	free (script_node_change); script_node_change = 0;
		206	free (script_node_down); script_node_down = 0;
143	}	207	}
144		208
145	void	209	void
146	configuration::clear_config ()	210	configuration::clear ()
147	{	211	{
148	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)
149	delete *i;	213	delete *i;
150		214
151	nodes.clear ();	215	nodes.clear ();
152		216
153	cleanup ();	217	cleanup ();
154	init ();	218	init ();
155	}	219	}
156		220
157	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
158	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
159	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
160	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
161	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
162	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
163	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
164	else \	228	else \
165	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
166	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
167	name, var, fname, lineno);
168		231
169	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)
170	{	560	{
171	char *fname;	561	char *fname;
172	FILE *f;	562	FILE *f;
173		563
174	clear_config ();	564	conf.clear ();
175		565
176	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
177	f = fopen (fname, "r");	567	f = fopen (fname, "r");
178		568
179	if (f)	569	if (f)
180	{	570	{
181	char line[16384];	571	char line[16384];
182	int lineno = 0;	572	int lineno = 0;
183	char var, val;	573	node = &conf.default_node;
184	conf_node *node = &default_node;
185		574
186	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
187	{	576	{
188	lineno++;	577	lineno++;
189		578
190	{	579	const char *warn = parse_line (line);
191	char *end = line + strlen (line);
192		580
193	while (*end < ' ' && end >= line)	581	if (warn)
194	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
195
196	*++end = 0;
197	}
198
199	char *tok = line;
200
201	retry:
202	var = strtok (tok, "\t =");
203	tok = 0;
204
205	if (!var \|\| !var[0])
206	continue; /* no tokens on this line */
207
208	if (var[0] == '#')
209	continue; /* comment: ignore */
210
211	val = strtok (NULL, "\t\n\r =");
212
213	if (!val \|\| val[0] == '#')
214	{
215	slog (L_WARN,
216	_("no value for variable `%s', at '%s' line %d"),
217	var, fname, lineno);
218	break;
219	}
220
221	if (!strcmp (var, "on"))
222	{
223	if (!::thisnode
224	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
225	\|\| !strcmp (val, ::thisnode))
226	goto retry;
227
228	continue;
229	}
230
231	// truly global
232	if (!strcmp (var, "loglevel"))
233	{
234	loglevel l = string_to_loglevel (val);
235
236	if (l != L_NONE)
237	llevel = l;
238	else
239	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
240	}
241	else if (!strcmp (var, "ip-proto"))
242	ip_proto = atoi (val);
243	#if ENABLE_ICMP
244	//TODO: error message
245	else if (!strcmp (var, "icmp-type"))
246	icmp_type = atoi (val);
247	#endif
248
249	// per config
250	else if (!strcmp (var, "node"))
251	{
252	default_node.id++;
253
254	node = new conf_node (default_node);
255
256	nodes.push_back (node);
257
258	node->nodename = strdup (val);
259
260	{
261	char *fname;
262	FILE *f;
263
264	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
265
266	f = fopen (fname, "r");
267	if (f)
268	{
269	node->rsa_key = RSA_new ();
270
271	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
272	{
273	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
274	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
275	exit (1);
276	}
277
278	RSA_blinding_on (node->rsa_key, 0);
279
280	fclose (f);
281	}
282	else
283	{
284	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
285
286	if (need_keys)
287	exit (1);
288	}
289
290	free (fname);
291	}
292
293	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
294	thisnode = node;
295	}
296	else if (!strcmp (var, "private-key"))
297	prikeyfile = strdup (val);
298	else if (!strcmp (var, "ifpersist"))
299	{
300	parse_bool (ifpersist, "ifpersist", true, false);
301	}
302	else if (!strcmp (var, "ifname"))
303	ifname = strdup (val);
304	else if (!strcmp (var, "rekey"))
305	rekey = atoi (val);
306	else if (!strcmp (var, "keepalive"))
307	keepalive = atoi (val);
308	else if (!strcmp (var, "mtu"))
309	mtu = atoi (val);
310	else if (!strcmp (var, "if-up"))
311	script_if_up = strdup (val);
312	else if (!strcmp (var, "node-up"))
313	script_node_up = strdup (val);
314	else if (!strcmp (var, "node-down"))
315	script_node_down = strdup (val);
316	#if ENABLE_HTTP_PROXY
317	else if (!strcmp (var, "http-proxy-host"))
318	proxy_host = strdup (val);
319	else if (!strcmp (var, "http-proxy-port"))
320	proxy_port = atoi (val);
321	else if (!strcmp (var, "http-proxy-auth"))
322	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
323	#endif
324
325	/* node-specific, non-defaultable */
326	else if (node != &default_node && !strcmp (var, "hostname"))
327	{
328	free (node->hostname);
329	node->hostname = strdup (val);
330	}
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "router-priority"))
338	node->routerprio = atoi (val);
339	else if (!strcmp (var, "connect"))
340	{
341	if (!strcmp (val, "ondemand"))
342	node->connectmode = conf_node::C_ONDEMAND;
343	else if (!strcmp (val, "never"))
344	node->connectmode = conf_node::C_NEVER;
345	else if (!strcmp (val, "always"))
346	node->connectmode = conf_node::C_ALWAYS;
347	else if (!strcmp (val, "disabled"))
348	node->connectmode = conf_node::C_DISABLED;
349	else
350	slog (L_WARN,
351	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
352	var, fname, lineno);
353	}
354	else if (!strcmp (var, "inherit-tos"))
355	{
356	parse_bool (node->inherit_tos, "inherit-tos", true, false);
357	}
358	else if (!strcmp (var, "compress"))
359	{
360	parse_bool (node->compress, "compress", true, false);
361	}
362	// all these bool options really really cost a lot of executable size!
363	else if (!strcmp (var, "enable-tcp"))
364	{
365	#if ENABLE_TCP
366	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
367	#endif
368	}
369	else if (!strcmp (var, "enable-icmp"))
370	{
371	#if ENABLE_ICMP
372	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
373	#endif
374	}
375	else if (!strcmp (var, "enable-udp"))
376	{
377	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
378	}
379	else if (!strcmp (var, "enable-rawip"))
380	{
381	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
382	}
383
384	// unknown or misplaced
385	else
386	slog (L_WARN,
387	_("unknown or misplaced variable `%s', at '%s' line %d"),
388	var, fname, lineno);
389	}	583	}
390		584
391	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
392	}	588	}
393	else	589	else
394	{	590	{
395	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));
396	exit (1);	592	exit (EXIT_FAILURE);
397	}	593	}
398		594
399	free (fname);	595	free (fname);
400		596
401	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
402		598
403	f = fopen (fname, "r");	599	f = fopen (fname, "r");
404	if (f)	600	if (f)
405	{	601	{
406	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
407		603
408	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
409	{	605	{
410	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
411	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));
412	exit (1);	608	exit (EXIT_FAILURE);
413	}	609	}
414		610
415	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
416		612
417	fclose (f);	613	fclose (f);
418	}	614	}
419	else	615	else
420	{	616	{
421	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));
422		618
423	if (need_keys)	619	if (need_keys)
424	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);
425	}	630	}
426		631
427	free (fname);	632	free (fname);
428	}
429		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
430	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
431	{	640	{
432	char *fname;	641	char *fname;
433		642
434	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
435		644
…		…
466	printf ("\n");	675	printf ("\n");
467	}	676	}
468		677
469	configuration::configuration ()	678	configuration::configuration ()
470	{	679	{
		680	asprintf (&confbase, "%s/gvpe", CONFDIR);
		681
471	init ();	682	init ();
472	}	683	}
473		684
474	configuration::~configuration ()	685	configuration::~configuration ()
475	{	686	{
476	cleanup ();	687	cleanup ();
477	}	688	}
478		689
479

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Comparing gvpe/src/conf.C (file contents): Revision 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs. Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC