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

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 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) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
37		45
38	#include <openssl/err.h>	46	#include <openssl/err.h>
39	#include <openssl/pem.h>	47	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	49	#include <openssl/rand.h>
42		50	#include <openssl/bn.h>
43	#include "gettext.h"
44		51
45	#include "conf.h"	52	#include "conf.h"
46	#include "slog.h"	53	#include "slog.h"
47	#include "util.h"	54	#include "util.h"
48		55
49	char *confbase;	56	char *confbase;
50	char *thisnode;	57	char *thisnode;
51	char *identname;	58	char *identname;
52	char *pidfilename;
53		59
54	struct configuration conf;	60	struct configuration conf;
55		61
		62	u8
56	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
57	{	64	{
58	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
		66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59	if (protset & PROT_UDPv4) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60	if (protset & PROT_TCPv4) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		70
62	return 0;	71	return 0;
63	}	72	}
64		73
		74	const char *
65	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
66	{	76	{
67	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
68	if (protocol & PROT_UDPv4) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
		80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
69		82
70	return "<unknown>";	83	return "<unknown>";
71	}	84	}
72		85
73	configuration::configuration ()	86	static bool
		87	match_list (const vector<const char > &list, const char str)
74	{	88	{
75	init ();	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
76	}	90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
77		94
78	configuration::~configuration ()	95	return false;
79	{
80	cleanup ();
81	}	96	}
82		97
		98	bool
		99	conf_node::may_direct (struct conf_node *other)
		100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
		108	}
		109
		110	conf_node::~conf_node ()
		111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
		115	if (rsa_key)
		116	RSA_free (rsa_key);
		117
		118	free (nodename);
		119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
		126	}
		127
		128	void
83	void configuration::init ()	129	configuration::init ()
84	{	130	{
85	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
86		132
		133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
87	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
88	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
89	llevel = L_INFO;	137	llevel = L_INFO;
90	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
		139	#if ENABLE_ICMP
		140	icmp_type = ICMP_ECHOREPLY;
		141	#endif
91		142
92	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
93	default_node.tcp_port = DEFAULT_UDPPORT;	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
94	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
95	default_node.compress = true;	146	default_node.compress = true;
96	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
97	}	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 ("");
98		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_case_preserving = true;
		157	dns_forw_host = strdup ("127.0.0.1");
		158	dns_forw_port = 53;
		159	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		160	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		161	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		162	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		163	#endif
		164
		165	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		166	}
		167
		168	void
99	void configuration::cleanup()	169	configuration::cleanup ()
100	{	170	{
101	if (rsa_key)	171	if (rsa_key)
102	RSA_free (rsa_key);	172	RSA_free (rsa_key);
103		173
104	free (ifname);
105
106	rsa_key = 0;	174	rsa_key = 0;
107	ifname = 0;	175
		176	free (pidfilename); pidfilename = 0;
		177	free (ifname); ifname = 0;
		178	#if ENABLE_HTTP_PROXY
		179	free (proxy_host); proxy_host = 0;
		180	free (proxy_auth); proxy_auth = 0;
		181	#endif
		182	#if ENABLE_DNS
		183	free (dns_forw_host); dns_forw_host = 0;
		184	#endif
		185	free (script_if_up); script_if_up = 0;
		186	free (script_node_up); script_node_up = 0;
		187	free (script_node_change); script_node_change = 0;
		188	free (script_node_down); script_node_down = 0;
108	}	189	}
109		190
110	void	191	void
111	configuration::clear_config ()	192	configuration::clear ()
112	{	193	{
113	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	194	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
114	delete *i;	195	delete *i;
115		196
116	nodes.clear ();	197	nodes.clear ();
117		198
118	cleanup ();	199	cleanup ();
119	init ();	200	init ();
120	}	201	}
121		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
122	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
123	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
124	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
125	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
126	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
127	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
128	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
129	else \	216	else \
130	slog (L_WARN, \	217	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
131	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	218	} while (0)
132	name, var, fname, lineno);
133		219
134	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
135	{	222	{
		223	{
		224	char *end = line + strlen (line);
		225
		226	while (*end < ' ' && end >= line)
		227	end--;
		228
		229	*++end = 0;
		230	}
		231
		232	char *tok = line;
		233	const char *var = strtok (tok, "\t =");
		234	tok = 0;
		235
		236	if (!var \|\| !var[0])
		237	return 0; /* no tokens on this line */
		238
		239	if (var[0] == '#')
		240	return 0; /* comment: ignore */
		241
		242	char *val = strtok (NULL, "\t\n\r =");
		243
		244	if (!val \|\| val[0] == '#')
		245	return _("no value given for variable. (ignored)");
		246
		247	else if (!strcmp (var, "on"))
		248	{
		249	if (!::thisnode
		250	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		251	\|\| !strcmp (val, ::thisnode))
		252	return parse_line (strtok (NULL, "\n\r"));
		253	}
		254
		255	else if (!strcmp (var, "include"))
		256	{
		257	char *fname = conf.config_filename (val);
		258	parse_file (fname);
		259	free (fname);
		260	}
		261
		262	// truly global
		263	else if (!strcmp (var, "loglevel"))
		264	{
		265	loglevel l = string_to_loglevel (val);
		266
		267	if (l == L_NONE)
		268	return _("unknown loglevel. (skipping)");
		269	}
		270	else if (!strcmp (var, "ip-proto"))
		271	conf.ip_proto = atoi (val);
		272	else if (!strcmp (var, "icmp-type"))
		273	{
		274	#if ENABLE_ICMP
		275	conf.icmp_type = atoi (val);
		276	#endif
		277	}
		278
		279	// per config
		280	else if (!strcmp (var, "node"))
		281	{
		282	parse_argv ();
		283
		284	conf.default_node.id++;
		285	node = new conf_node (conf.default_node);
		286	conf.nodes.push_back (node);
		287	node->nodename = strdup (val);
		288
		289	{
136	char *fname;	290	char *fname;
137	FILE *f;	291	FILE *f;
138		292
139	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
140		294
141	asprintf (&fname, "%s/vped.conf", confbase);
142	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
143		299
144	if (f)	300	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		301	{
		302	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		303	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	require (RSA_blinding_on (node->rsa_key, 0));
		308
		309	fclose (f);
		310	}
		311	else
		312	{
		313	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		314
		315	if (need_keys)
		316	exit (EXIT_FAILURE);
		317	}
		318
		319	free (fname);
		320	}
		321
		322	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		323	conf.thisnode = node;
145	{	324	}
		325	else if (!strcmp (var, "private-key"))
		326	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		327	else if (!strcmp (var, "ifpersist"))
		328	parse_bool (conf.ifpersist, "ifpersist", true, false);
		329	else if (!strcmp (var, "ifname"))
		330	free (conf.ifname), conf.ifname = strdup (val);
		331	else if (!strcmp (var, "rekey"))
		332	conf.rekey = atoi (val);
		333	else if (!strcmp (var, "keepalive"))
		334	conf.keepalive = atoi (val);
		335	else if (!strcmp (var, "mtu"))
		336	conf.mtu = atoi (val);
		337	else if (!strcmp (var, "nfmark"))
		338	conf.nfmark = atoi (val);
		339	else if (!strcmp (var, "if-up"))
		340	free (conf.script_if_up), conf.script_if_up = strdup (val);
		341	else if (!strcmp (var, "node-up"))
		342	free (conf.script_node_up), conf.script_node_up = strdup (val);
		343	else if (!strcmp (var, "node-change"))
		344	free (conf.script_node_change), conf.script_node_change = strdup (val);
		345	else if (!strcmp (var, "node-down"))
		346	free (conf.script_node_down), conf.script_node_down = strdup (val);
		347	else if (!strcmp (var, "pid-file"))
		348	free (conf.pidfilename), conf.pidfilename = strdup (val);
		349	else if (!strcmp (var, "dns-forw-host"))
		350	{
		351	#if ENABLE_DNS
		352	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-forw-port"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_forw_port = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-timeout-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_timeout_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-send-interval"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_send_interval = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "dns-overlap-factor"))
		374	{
		375	#if ENABLE_DNS
		376	conf.dns_overlap_factor = atof (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-max-outstanding"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_max_outstanding = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-case-preserving"))
		386	{
		387	#if ENABLE_DNS
		388	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		389	#endif
		390	}
		391	else if (!strcmp (var, "http-proxy-host"))
		392	{
		393	#if ENABLE_HTTP_PROXY
		394	free (conf.proxy_host), conf.proxy_host = strdup (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "http-proxy-port"))
		398	{
		399	#if ENABLE_HTTP_PROXY
		400	conf.proxy_port = atoi (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "http-proxy-auth"))
		404	{
		405	#if ENABLE_HTTP_PROXY
		406	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		407	#endif
		408	}
		409
		410	/* node-specific, non-defaultable */
		411	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		412	free (node->hostname), node->hostname = strdup (val);
		413
		414	/* node-specific, defaultable */
		415	else if (!strcmp (var, "udp-port"))
		416	node->udp_port = atoi (val);
		417	else if (!strcmp (var, "tcp-port"))
		418	node->tcp_port = atoi (val);
		419	else if (!strcmp (var, "dns-hostname"))
		420	{
		421	#if ENABLE_DNS
		422	free (node->dns_hostname), node->dns_hostname = strdup (val);
		423	#endif
		424	}
		425	else if (!strcmp (var, "dns-port"))
		426	{
		427	#if ENABLE_DNS
		428	node->dns_port = atoi (val);
		429	#endif
		430	}
		431	else if (!strcmp (var, "dns-domain"))
		432	{
		433	#if ENABLE_DNS
		434	free (node->domain), node->domain = strdup (val);
		435	#endif
		436	}
		437	else if (!strcmp (var, "if-up-data"))
		438	free (node->if_up_data), node->if_up_data = strdup (val);
		439	else if (!strcmp (var, "router-priority"))
		440	node->routerprio = atoi (val);
		441	else if (!strcmp (var, "max-retry"))
		442	node->max_retry = atoi (val);
		443	else if (!strcmp (var, "connect"))
		444	{
		445	if (!strcmp (val, "ondemand"))
		446	node->connectmode = conf_node::C_ONDEMAND;
		447	else if (!strcmp (val, "never"))
		448	node->connectmode = conf_node::C_NEVER;
		449	else if (!strcmp (val, "always"))
		450	node->connectmode = conf_node::C_ALWAYS;
		451	else if (!strcmp (val, "disabled"))
		452	node->connectmode = conf_node::C_DISABLED;
		453	else
		454	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		455	}
		456	else if (!strcmp (var, "inherit-tos"))
		457	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		458	else if (!strcmp (var, "compress"))
		459	parse_bool (node->compress, "compress", true, false);
		460	// all these bool options really really cost a lot of executable size!
		461	else if (!strcmp (var, "enable-tcp"))
		462	{
		463	#if ENABLE_TCP
		464	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		465	#endif
		466	}
		467	else if (!strcmp (var, "enable-icmp"))
		468	{
		469	#if ENABLE_ICMP
		470	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		471	#endif
		472	}
		473	else if (!strcmp (var, "enable-dns"))
		474	{
		475	#if ENABLE_DNS
		476	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		477	#endif
		478	}
		479	else if (!strcmp (var, "enable-udp"))
		480	{
		481	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		482	}
		483	else if (!strcmp (var, "enable-rawip"))
		484	{
		485	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		486	}
		487	else if (!strcmp (var, "allow-direct"))
		488	node->allow_direct.push_back (strdup (val));
		489	else if (!strcmp (var, "deny-direct"))
		490	node->deny_direct.push_back (strdup (val));
		491	else if (!strcmp (var, "max-ttl"))
		492	node->max_ttl = atof (val);
		493	else if (!strcmp (var, "max-queue"))
		494	node->max_queue = atoi (val);
		495
		496	// unknown or misplaced
		497	else
		498	return _("unknown configuration directive - ignored");
		499
		500	return 0;
		501	}
		502
		503	void
		504	conf_node::finalise ()
		505	{
		506	if (max_queue < 1)
		507	{
		508	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		509	max_queue = 1;
		510	}
		511
		512	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		513	{
		514	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		515	connectmode = C_ALWAYS;
		516	}
		517	}
		518
		519	void
		520	configuration_parser::parse_argv ()
		521	{
		522	for (int i = 0; i < argc; ++i)
		523	{
		524	char *v = argv [i];
		525
		526	if (!*v)
		527	continue;
		528
		529	char *enode = v;
		530
		531	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		532	enode++;
		533
		534	if (*enode != '.')
		535	enode = 0;
		536
		537	char *wnode = node == &conf.default_node
		538	? 0
		539	: node->nodename;
		540
		541	if ((!wnode && !enode)
		542	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		543	{
		544	const char *warn = parse_line (enode ? enode + 1 : v);
		545
		546	if (warn)
		547	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		548
		549	*v = 0;
		550	}
		551	}
		552	}
		553
		554	void
		555	configuration_parser::parse_file (const char *fname)
		556	{
		557	if (FILE *f = fopen (fname, "r"))
		558	{
146	char line[16384];	559	char line [2048];
147	int lineno = 0;	560	int lineno = 0;
148	char var, val;	561	node = &conf.default_node;
149	conf_node *node = &default_node;
150		562
151	while (fgets (line, sizeof (line), f))	563	while (fgets (line, sizeof (line), f))
152	{	564	{
153	lineno++;	565	lineno++;
154		566
155	{	567	const char *warn = parse_line (line);
156	char *end = line + strlen (line);
157		568
158	while (*end < ' ' && end >= line)	569	if (warn)
159	end--;	570	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
160
161	*++end = 0;
162	}
163
164	char *tok = line;
165
166	retry:
167	var = strtok (tok, "\t =");
168	tok = 0;
169
170	if (!var \|\| !var[0])
171	continue; /* no tokens on this line */
172
173	if (var[0] == '#')
174	continue; /* comment: ignore */
175
176	val = strtok (NULL, "\t\n\r =");
177
178	if (!val \|\| val[0] == '#')
179	{
180	slog (L_WARN,
181	_("no value for variable `%s', at '%s' line %d"),
182	var, fname, lineno);
183	break;
184	}
185
186	if (!strcmp (var, "on"))
187	{
188	if (!::thisnode
189	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
190	\|\| !strcmp (val, ::thisnode))
191	goto retry;
192
193	continue;
194	}
195
196	// truly global
197	if (!strcmp (var, "loglevel"))
198	{
199	loglevel l = string_to_loglevel (val);
200
201	if (l != L_NONE)
202	llevel = l;
203	else
204	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
205	}
206	else if (!strcmp (var, "ip-proto"))
207	ip_proto = atoi (val);
208
209	// per config
210	else if (!strcmp (var, "node"))
211	{
212	default_node.id++;
213
214	node = new conf_node (default_node);
215
216	nodes.push_back (node);
217
218	node->nodename = strdup (val);
219
220	{
221	char *fname;
222	FILE *f;
223
224	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
225
226	f = fopen (fname, "r");
227	if (f)
228	{
229	node->rsa_key = RSA_new ();
230
231	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
232	{
233	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
234	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
235	exit (1);
236	}
237
238	RSA_blinding_on (node->rsa_key, 0);
239
240	fclose (f);
241	}
242	else
243	{
244	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
245
246	if (need_keys)
247	exit (1);
248	}
249
250	free (fname);
251	}
252
253	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
254	thisnode = node;
255	}
256	else if (!strcmp (var, "private-key"))
257	prikeyfile = strdup (val);
258	else if (!strcmp (var, "ifpersist"))
259	{
260	parse_bool (ifpersist, "ifpersist", true, false);
261	}
262	else if (!strcmp (var, "ifname"))
263	ifname = strdup (val);
264	else if (!strcmp (var, "rekey"))
265	rekey = atoi (val);
266	else if (!strcmp (var, "keepalive"))
267	keepalive = atoi (val);
268	else if (!strcmp (var, "mtu"))
269	mtu = atoi (val);
270	else if (!strcmp (var, "if-up"))
271	script_if_up = strdup (val);
272	else if (!strcmp (var, "node-up"))
273	script_node_up = strdup (val);
274	else if (!strcmp (var, "node-down"))
275	script_node_down = strdup (val);
276
277	/* node-specific, non-defaultable */
278	else if (node != &default_node && !strcmp (var, "hostname"))
279	{
280	free (node->hostname);
281	node->hostname = strdup (val);
282	}
283
284	/* node-specific, defaultable */
285	else if (!strcmp (var, "udp-port"))
286	node->udp_port = atoi (val);
287	else if (!strcmp (var, "tcp-port"))
288	node->tcp_port = atoi (val);
289	else if (!strcmp (var, "router-priority"))
290	node->routerprio = atoi (val);
291	else if (!strcmp (var, "connect"))
292	{
293	if (!strcmp (val, "ondemand"))
294	node->connectmode = conf_node::C_ONDEMAND;
295	else if (!strcmp (val, "never"))
296	node->connectmode = conf_node::C_NEVER;
297	else if (!strcmp (val, "always"))
298	node->connectmode = conf_node::C_ALWAYS;
299	else if (!strcmp (val, "disabled"))
300	node->connectmode = conf_node::C_DISABLED;
301	else
302	slog (L_WARN,
303	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
304	var, fname, lineno);
305	}
306	else if (!strcmp (var, "inherit-tos"))
307	{
308	parse_bool (node->inherit_tos, "inherit-tos", true, false);
309	}
310	else if (!strcmp (var, "compress"))
311	{
312	parse_bool (node->compress, "compress", true, false);
313	}
314	// all these bool options really really cost a lot of executable size!
315	else if (!strcmp (var, "enable-tcp"))
316	{
317	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
318	}
319	else if (!strcmp (var, "enable-udp"))
320	{
321	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
322	}
323	else if (!strcmp (var, "enable-rawip"))
324	{
325	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
326	}
327
328	// unknown or misplaced
329	else
330	{
331	slog (L_WARN,
332	_("unknown or misplaced variable `%s', at '%s' line %d"),
333	var, fname, lineno);
334	}
335	}	571	}
336		572
337	fclose (f);	573	fclose (f);
		574
		575	parse_argv ();
338	}	576	}
339	else	577	else
340	{	578	{
341	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	579	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
342	exit (1);	580	exit (EXIT_FAILURE);
343	}	581	}
		582	}
344		583
		584	configuration_parser::configuration_parser (configuration &conf,
		585	bool need_keys,
		586	int argc,
		587	char **argv)
		588	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		589	{
		590	char *fname;
		591
		592	conf.clear ();
		593
		594	asprintf (&fname, "%s/gvpe.conf", confbase);
		595	parse_file (fname);
345	free (fname);	596	free (fname);
346		597
347	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
348		599
349	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
350	if (f)
351	{	601	{
352	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
353		603
354	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
355	{	605	{
356	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
357	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));
358	exit (1);	608	exit (EXIT_FAILURE);
359	}	609	}
360		610
361	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
362		612
363	fclose (f);	613	fclose (f);
364	}	614	}
365	else	615	else
366	{	616	{
367	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));
368		618
369	if (need_keys)	619	if (need_keys)
370	exit (1);	620	exit (EXIT_FAILURE);
371	}	621	}
372		622
373	free (fname);	623	free (fname);
374	}
375		624
		625	if (need_keys && ::thisnode
		626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		627	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		629	{
		630	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		631	exit (EXIT_FAILURE);
		632	}
		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
376	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
377	{	640	{
378	char *fname;	641	char *fname;
379		642
380	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
381		644
…		…
385	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
386	free (rname);	649	free (rname);
387	}	650	}
388		651
389	return fname;	652	return fname;
		653	}
		654
		655	void
		656	conf_node::print ()
		657	{
		658	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		659	id,
		660	id >> 8, id & 0xff,
		661	compress ? 'Y' : 'N',
		662	connectmode == C_ONDEMAND ? "ondemand"
		663	: connectmode == C_NEVER ? "never"
		664	: connectmode == C_ALWAYS ? "always"
		665	: connectmode == C_DISABLED ? "disabled"
		666	: "",
		667	nodename,
		668	protocols,
		669	hostname ? hostname : "",
		670	hostname ? ":" : "",
		671	hostname ? udp_port : 0
		672	);
390	}	673	}
391		674
392	void	675	void
393	configuration::print ()	676	configuration::print ()
394	{	677	{
…		…
398	printf (_("MTU: %d\n"), mtu);	681	printf (_("MTU: %d\n"), mtu);
399	printf (_("rekeying interval: %d\n"), rekey);	682	printf (_("rekeying interval: %d\n"), rekey);
400	printf (_("keepalive interval: %d\n"), keepalive);	683	printf (_("keepalive interval: %d\n"), keepalive);
401	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
402	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
403	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	686	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
404	printf ("\n");	687	printf ("\n");
405		688
406	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
407	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
408		691
409	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
410	(*i)->print ();	693	(*i)->print ();
411		694
412	printf ("\n");	695	printf ("\n");
413	}	696	}
414		697
415	void	698	configuration::configuration ()
416	conf_node::print ()
417	{	699	{
418	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	700	asprintf (&confbase, "%s/gvpe", CONFDIR);
419	id,
420	id >> 8, id & 0xff,
421	compress ? 'Y' : 'N',
422	connectmode == C_ONDEMAND ? "ondemand" :
423	connectmode == C_NEVER ? "never" :
424	connectmode == C_ALWAYS ? "always" : "",
425	nodename,
426	hostname ? hostname : "",
427	hostname ? ":" : "",
428	hostname ? udp_port : 0
429	);
430	}
431		701
		702	init ();
		703	}
		704
		705	configuration::~configuration ()
		706	{
		707	cleanup ();
		708	}
		709

Diff Legend

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

Comparing gvpe/src/conf.C (file contents): Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs. Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC