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

Comparing gvpe/src/conf.C (file contents):
Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
5	This file is part of GVPE.	5	This file is part of GVPE.
6		6
7	GVPE is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
8	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
9	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
10	(at your option) any later version.	10	option) any later version.
11		11
12	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
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15	GNU General Public License for more details.	15	Public License for more details.
16		16
17	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
18	along with gvpe; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
19	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.
20	*/	30	*/
21		31
22	#include "config.h"	32	#include "config.h"
23		33
24	#include <cstdio>	34	#include <cstdio>
47	char *thisnode;	57	char *thisnode;
48	char *identname;	58	char *identname;
49		59
50	struct configuration conf;	60	struct configuration conf;
51		61
		62	u8
52	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
53	{	64	{
		65	#if 1//D2
		66	if (protset & PROT_IPv42 ) return PROT_IPv42;
		67	#endif
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	68	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	72	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		73
60	return 0;	74	return 0;
61	}	75	}
62		76
		77	const char *
63	const char *strprotocol (u8 protocol)	78	strprotocol (u8 protocol)
64	{	79	{
		80	#if 1//D2
		81	if (protocol & PROT_IPv42 ) return "rawip2";
		82	#endif
65	if (protocol & PROT_IPv4 ) return "rawip";	83	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	84	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	85	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	86	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	87	if (protocol & PROT_DNSv4 ) return "dns";
70		88
71	return "<unknown>";	89	return "<unknown>";
72	}	90	}
73		91
74	void	92	static bool
75	conf_node::print ()	93	match_list (const vector<const char > &list, const char str)
76	{	94	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	95	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	96	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	97	return true;
80	compress ? 'Y' : 'N',	98	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	99	return true;
82	connectmode == C_NEVER ? "never" :	100
83	connectmode == C_ALWAYS ? "always" : "",	101	return false;
84	nodename,	102	}
85	hostname ? hostname : "",	103
86	hostname ? ":" : "",	104	bool
87	hostname ? udp_port : 0	105	conf_node::may_direct (struct conf_node *other)
88	);	106	{
		107	if (match_list (allow_direct, other->nodename))
		108	return true;
		109
		110	if (match_list (deny_direct, other->nodename))
		111	return false;
		112
		113	return true;
89	}	114	}
90		115
91	conf_node::~conf_node ()	116	conf_node::~conf_node ()
92	{	117	{
		118	#if 0
		119	// does not work, because string pointers etc. are shared
		120	// is not called, however
93	if (rsa_key)	121	if (rsa_key)
94	RSA_free (rsa_key);	122	RSA_free (rsa_key);
95		123
96	free (nodename);	124	free (nodename);
97	free (hostname);	125	free (hostname);
		126	free (if_up_data);
98	#if ENABLE_DNS	127	#if ENABLE_DNS
99	free (domain);	128	free (domain);
100	free (dns_hostname);	129	free (dns_hostname);
101	#endif	130	#endif
		131	#endif
102	}	132	}
103		133
		134	void
104	void configuration::init ()	135	configuration::init ()
105	{	136	{
106	memset (this, 0, sizeof (*this));	137	memset (this, 0, sizeof (*this));
107		138
108	mtu = DEFAULT_MTU;	139	mtu = DEFAULT_MTU;
		140	nfmark = 0;
109	rekey = DEFAULT_REKEY;	141	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	142	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	143	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	144	ip_proto = IPPROTO_GRE;
		145	#if 1 //D2
		146	ip2_proto = 7;
		147	#endif
113	#if ENABLE_ICMP	148	#if ENABLE_ICMP
114	icmp_type = ICMP_ECHOREPLY;	149	icmp_type = ICMP_ECHOREPLY;
115	#endif	150	#endif
116		151
117	default_node.udp_port = DEFAULT_UDPPORT;	152	default_node.udp_port = DEFAULT_UDPPORT;
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	153	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	154	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	155	default_node.compress = true;
121	default_node.protocols = 0;	156	default_node.protocols = 0;
122	default_node.max_retry = DEFAULT_MAX_RETRY;	157	default_node.max_retry = DEFAULT_MAX_RETRY;
		158	default_node.max_ttl = DEFAULT_MAX_TTL;
		159	default_node.max_queue = DEFAULT_MAX_QUEUE;
		160	default_node.if_up_data = strdup ("");
123		161
124	#if ENABLE_DNS	162	#if ENABLE_DNS
125	default_node.dns_port = 0; // default is 0 == client	163	default_node.dns_port = 0; // default is 0 == client
		164
		165	dns_case_preserving = true;
126	dns_forw_host = strdup ("127.0.0.1");	166	dns_forw_host = strdup ("127.0.0.1");
127	dns_forw_port = 53;	167	dns_forw_port = 53;
		168	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		169	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		170	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		171	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
128	#endif	172	#endif
129		173
130	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	174	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
131	}	175	}
132		176
		177	void
133	void configuration::cleanup()	178	configuration::cleanup ()
134	{	179	{
135	if (rsa_key)	180	if (rsa_key)
136	RSA_free (rsa_key);	181	RSA_free (rsa_key);
137		182
138	rsa_key = 0;	183	rsa_key = 0;
139		184
140	free (pidfilename); pidfilename = 0;	185	free (pidfilename); pidfilename = 0;
141	free (ifname); ifname = 0;	186	free (ifname); ifname = 0;
142	#if ENABLE_HTTP_PROXY	187	#if ENABLE_HTTP_PROXY
143	free (proxy_host); proxy_host = 0;	188	free (proxy_host); proxy_host = 0;
144	free (proxy_auth); proxy_auth = 0;	189	free (proxy_auth); proxy_auth = 0;
145	#endif	190	#endif
146	#if ENABLE_DNS	191	#if ENABLE_DNS
147	free (dns_forw_host); dns_forw_host = 0;	192	free (dns_forw_host); dns_forw_host = 0;
148	#endif	193	#endif
		194	free (script_if_up); script_if_up = 0;
		195	free (script_node_up); script_node_up = 0;
		196	free (script_node_change); script_node_change = 0;
		197	free (script_node_down); script_node_down = 0;
149	}	198	}
150		199
151	void	200	void
152	configuration::clear_config ()	201	configuration::clear ()
153	{	202	{
154	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	203	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
155	delete *i;	204	delete *i;
156		205
157	nodes.clear ();	206	nodes.clear ();
158		207
159	cleanup ();	208	cleanup ();
160	init ();	209	init ();
161	}	210	}
162		211
		212	//static bool
		213	//is_true (const char *name)
		214	//{
		215	//re
		216	//}
		217
163	#define parse_bool(target,name,trueval,falseval) \	218	#define parse_bool(target,name,trueval,falseval) do { \
164	if (!strcmp (val, "yes")) target = trueval; \	219	if (!strcmp (val, "yes")) target = trueval; \
165	else if (!strcmp (val, "no")) target = falseval; \	220	else if (!strcmp (val, "no")) target = falseval; \
166	else if (!strcmp (val, "true")) target = trueval; \	221	else if (!strcmp (val, "true")) target = trueval; \
167	else if (!strcmp (val, "false")) target = falseval; \	222	else if (!strcmp (val, "false")) target = falseval; \
168	else if (!strcmp (val, "on")) target = trueval; \	223	else if (!strcmp (val, "on")) target = trueval; \
169	else if (!strcmp (val, "off")) target = falseval; \	224	else if (!strcmp (val, "off")) target = falseval; \
170	else \	225	else \
171	slog (L_WARN, \
172	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	226	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
173	name, var, fname, lineno);	227	} while (0)
174		228
175	void configuration::read_config (bool need_keys)	229	const char *
		230	configuration_parser::parse_line (char *line)
176	{	231	{
		232	{
		233	char *end = line + strlen (line);
		234
		235	while (*end < ' ' && end >= line)
		236	end--;
		237
		238	*++end = 0;
		239	}
		240
		241	char *tok = line;
		242	const char *var = strtok (tok, "\t =");
		243	tok = 0;
		244
		245	if (!var \|\| !var[0])
		246	return 0; /* no tokens on this line */
		247
		248	if (var[0] == '#')
		249	return 0; /* comment: ignore */
		250
		251	char *val = strtok (NULL, "\t\n\r =");
		252
		253	if (!val \|\| val[0] == '#')
		254	return _("no value given for variable, ignored");
		255
		256	else if (!strcmp (var, "on"))
		257	{
		258	if (::thisnode
		259	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		260	\|\| !strcmp (val, ::thisnode)))
		261	return parse_line (strtok (NULL, "\n\r"));
		262	}
		263
		264	else if (!strcmp (var, "include"))
		265	{
		266	char *fname = conf.config_filename (val);
		267	parse_file (fname);
		268	free (fname);
		269	}
		270
		271	// truly global
		272	else if (!strcmp (var, "loglevel"))
		273	{
		274	loglevel l = string_to_loglevel (val);
		275
		276	if (l == L_NONE)
		277	return _("unknown loglevel, ignored");
		278	}
		279	else if (!strcmp (var, "ip-proto"))
		280	conf.ip_proto = atoi (val);
		281	#if 1 //D2
		282	else if (!strcmp (var, "ip2-proto"))
		283	conf.ip2_proto = atoi (val);
		284	#endif
		285	else if (!strcmp (var, "icmp-type"))
		286	{
		287	#if ENABLE_ICMP
		288	conf.icmp_type = atoi (val);
		289	#endif
		290	}
		291
		292	// per config
		293	else if (!strcmp (var, "node"))
		294	{
		295	parse_argv ();
		296
		297	conf.default_node.id++;
		298	node = new conf_node (conf.default_node);
		299	conf.nodes.push_back (node);
		300	node->nodename = strdup (val);
		301
		302	{
177	char *fname;	303	char *fname;
178	FILE *f;	304	FILE *f;
179		305
180	clear_config ();	306	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
181		307
182	asprintf (&fname, "%s/gvpe.conf", confbase);
183	f = fopen (fname, "r");	308	f = fopen (fname, "r");
		309	if (f)
		310	{
		311	node->rsa_key = RSA_new ();
184		312
185	if (f)	313	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		314	{
		315	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		316	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		317	exit (EXIT_FAILURE);
		318	}
		319
		320	require (RSA_blinding_on (node->rsa_key, 0));
		321
		322	fclose (f);
		323	}
		324	else
		325	{
		326	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		327
		328	if (need_keys)
		329	exit (EXIT_FAILURE);
		330	}
		331
		332	free (fname);
		333	}
		334
		335	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		336	conf.thisnode = node;
186	{	337	}
		338	else if (!strcmp (var, "private-key"))
		339	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		340	else if (!strcmp (var, "ifpersist"))
		341	parse_bool (conf.ifpersist, "ifpersist", true, false);
		342	else if (!strcmp (var, "ifname"))
		343	free (conf.ifname), conf.ifname = strdup (val);
		344	else if (!strcmp (var, "rekey"))
		345	conf.rekey = atoi (val);
		346	else if (!strcmp (var, "keepalive"))
		347	conf.keepalive = atoi (val);
		348	else if (!strcmp (var, "mtu"))
		349	conf.mtu = atoi (val);
		350	else if (!strcmp (var, "nfmark"))
		351	conf.nfmark = atoi (val);
		352	else if (!strcmp (var, "if-up"))
		353	free (conf.script_if_up), conf.script_if_up = strdup (val);
		354	else if (!strcmp (var, "node-up"))
		355	free (conf.script_node_up), conf.script_node_up = strdup (val);
		356	else if (!strcmp (var, "node-change"))
		357	free (conf.script_node_change), conf.script_node_change = strdup (val);
		358	else if (!strcmp (var, "node-down"))
		359	free (conf.script_node_down), conf.script_node_down = strdup (val);
		360	else if (!strcmp (var, "pid-file"))
		361	free (conf.pidfilename), conf.pidfilename = strdup (val);
		362	else if (!strcmp (var, "dns-forw-host"))
		363	{
		364	#if ENABLE_DNS
		365	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-forw-port"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_forw_port = atoi (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-timeout-factor"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_timeout_factor = atof (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-send-interval"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_send_interval = atoi (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-overlap-factor"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_overlap_factor = atof (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-max-outstanding"))
		393	{
		394	#if ENABLE_DNS
		395	conf.dns_max_outstanding = atoi (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "dns-case-preserving"))
		399	{
		400	#if ENABLE_DNS
		401	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-host"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	free (conf.proxy_host), conf.proxy_host = strdup (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-port"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_port = atoi (val);
		414	#endif
		415	}
		416	else if (!strcmp (var, "http-proxy-auth"))
		417	{
		418	#if ENABLE_HTTP_PROXY
		419	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		420	#endif
		421	}
		422
		423	/* node-specific, non-defaultable */
		424	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		425	free (node->hostname), node->hostname = strdup (val);
		426
		427	/* node-specific, defaultable */
		428	else if (!strcmp (var, "udp-port"))
		429	node->udp_port = atoi (val);
		430	else if (!strcmp (var, "tcp-port"))
		431	node->tcp_port = atoi (val);
		432	else if (!strcmp (var, "dns-hostname"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->dns_hostname), node->dns_hostname = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-port"))
		439	{
		440	#if ENABLE_DNS
		441	node->dns_port = atoi (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "dns-domain"))
		445	{
		446	#if ENABLE_DNS
		447	free (node->domain), node->domain = strdup (val);
		448	#endif
		449	}
		450	else if (!strcmp (var, "if-up-data"))
		451	free (node->if_up_data), node->if_up_data = strdup (val);
		452	else if (!strcmp (var, "router-priority"))
		453	node->routerprio = atoi (val);
		454	else if (!strcmp (var, "max-retry"))
		455	node->max_retry = atoi (val);
		456	else if (!strcmp (var, "connect"))
		457	{
		458	if (!strcmp (val, "ondemand"))
		459	node->connectmode = conf_node::C_ONDEMAND;
		460	else if (!strcmp (val, "never"))
		461	node->connectmode = conf_node::C_NEVER;
		462	else if (!strcmp (val, "always"))
		463	node->connectmode = conf_node::C_ALWAYS;
		464	else if (!strcmp (val, "disabled"))
		465	node->connectmode = conf_node::C_DISABLED;
		466	else
		467	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		468	}
		469	else if (!strcmp (var, "inherit-tos"))
		470	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		471	else if (!strcmp (var, "compress"))
		472	parse_bool (node->compress, "compress", true, false);
		473	// all these bool options really really cost a lot of executable size!
		474	else if (!strcmp (var, "enable-tcp"))
		475	{
		476	#if ENABLE_TCP
		477	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-icmp"))
		481	{
		482	#if ENABLE_ICMP
		483	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-dns"))
		487	{
		488	#if ENABLE_DNS
		489	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		490	#endif
		491	}
		492	else if (!strcmp (var, "enable-udp"))
		493	{
		494	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		495	}
		496	else if (!strcmp (var, "enable-rawip"))
		497	{
		498	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		499	}
		500	#if 1//D2
		501	else if (!strcmp (var, "enable-rawip2"))
		502	{
		503	u8 v; parse_bool (v, "enable-rawip2", PROT_IPv42, 0); node->protocols = (node->protocols & ~PROT_IPv42 ) \| v;
		504	}
		505	#endif
		506	else if (!strcmp (var, "allow-direct"))
		507	node->allow_direct.push_back (strdup (val));
		508	else if (!strcmp (var, "deny-direct"))
		509	node->deny_direct.push_back (strdup (val));
		510	else if (!strcmp (var, "max-ttl"))
		511	node->max_ttl = atof (val);
		512	else if (!strcmp (var, "max-queue"))
		513	node->max_queue = atoi (val);
		514
		515	// unknown or misplaced
		516	else
		517	return _("unknown configuration directive - ignored");
		518
		519	return 0;
		520	}
		521
		522	void
		523	conf_node::finalise ()
		524	{
		525	if (max_queue < 1)
		526	{
		527	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		528	max_queue = 1;
		529	}
		530
		531	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		532	{
		533	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		534	connectmode = C_ALWAYS;
		535	}
		536	}
		537
		538	void
		539	configuration_parser::parse_argv ()
		540	{
		541	for (int i = 0; i < argc; ++i)
		542	{
		543	char *v = argv [i];
		544
		545	if (!*v)
		546	continue;
		547
		548	char *enode = v;
		549
		550	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		551	enode++;
		552
		553	if (*enode != '.')
		554	enode = 0;
		555
		556	char *wnode = node == &conf.default_node
		557	? 0
		558	: node->nodename;
		559
		560	if ((!wnode && !enode)
		561	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		562	{
		563	const char *warn = parse_line (enode ? enode + 1 : v);
		564
		565	if (warn)
		566	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		567
		568	*v = 0;
		569	}
		570	}
		571	}
		572
		573	void
		574	configuration_parser::parse_file (const char *fname)
		575	{
		576	if (FILE *f = fopen (fname, "r"))
		577	{
187	char line[16384];	578	char line [2048];
188	int lineno = 0;	579	int lineno = 0;
189	char var, val;
190	conf_node *node = &default_node;
191		580
192	while (fgets (line, sizeof (line), f))	581	while (fgets (line, sizeof (line), f))
193	{	582	{
194	lineno++;	583	lineno++;
195		584
196	{	585	const char *warn = parse_line (line);
197	char *end = line + strlen (line);
198		586
199	while (*end < ' ' && end >= line)	587	if (warn)
200	end--;	588	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
201
202	*++end = 0;
203	}
204
205	char *tok = line;
206
207	retry:
208	var = strtok (tok, "\t =");
209	tok = 0;
210
211	if (!var \|\| !var[0])
212	continue; /* no tokens on this line */
213
214	if (var[0] == '#')
215	continue; /* comment: ignore */
216
217	val = strtok (NULL, "\t\n\r =");
218
219	if (!val \|\| val[0] == '#')
220	{
221	slog (L_WARN,
222	_("no value for variable `%s', at '%s' line %d, skipping."),
223	var, fname, lineno);
224	continue;
225	}
226
227	if (!strcmp (var, "on"))
228	{
229	if (!::thisnode
230	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
231	\|\| !strcmp (val, ::thisnode))
232	goto retry;
233
234	continue;
235	}
236
237	// truly global
238	if (!strcmp (var, "loglevel"))
239	{
240	loglevel l = string_to_loglevel (val);
241
242	if (l != L_NONE)
243	llevel = l;
244	else
245	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
246	}
247	else if (!strcmp (var, "ip-proto"))
248	ip_proto = atoi (val);
249	else if (!strcmp (var, "icmp-type"))
250	{
251	#if ENABLE_ICMP
252	icmp_type = atoi (val);
253	#endif
254	}
255
256	// per config
257	else if (!strcmp (var, "node"))
258	{
259	default_node.id++;
260
261	node = new conf_node (default_node);
262
263	nodes.push_back (node);
264
265	node->nodename = strdup (val);
266
267	{
268	char *fname;
269	FILE *f;
270
271	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
272
273	f = fopen (fname, "r");
274	if (f)
275	{
276	node->rsa_key = RSA_new ();
277
278	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
279	{
280	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
281	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
282	exit (EXIT_FAILURE);
283	}
284
285	require (RSA_blinding_on (node->rsa_key, 0));
286
287	fclose (f);
288	}
289	else
290	{
291	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
292
293	if (need_keys)
294	exit (EXIT_FAILURE);
295	}
296
297	free (fname);
298	}
299
300	if (::thisnode && !strcmp (node->nodename, ::thisnode))
301	thisnode = node;
302	}
303	else if (!strcmp (var, "private-key"))
304	free (prikeyfile), prikeyfile = strdup (val);
305	else if (!strcmp (var, "ifpersist"))
306	parse_bool (ifpersist, "ifpersist", true, false);
307	else if (!strcmp (var, "ifname"))
308	free (ifname), ifname = strdup (val);
309	else if (!strcmp (var, "rekey"))
310	rekey = atoi (val);
311	else if (!strcmp (var, "keepalive"))
312	keepalive = atoi (val);
313	else if (!strcmp (var, "mtu"))
314	mtu = atoi (val);
315	else if (!strcmp (var, "if-up"))
316	free (script_if_up), script_if_up = strdup (val);
317	else if (!strcmp (var, "node-up"))
318	free (script_node_up), script_node_up = strdup (val);
319	else if (!strcmp (var, "node-down"))
320	free (script_node_down), script_node_down = strdup (val);
321	else if (!strcmp (var, "pid-file"))
322	free (pidfilename), pidfilename = strdup (val);
323	else if (!strcmp (var, "dns-forw-host"))
324	{
325	#if ENABLE_DNS
326	free (dns_forw_host), dns_forw_host = strdup (val);
327	#endif
328	}
329	else if (!strcmp (var, "dns-forw-port"))
330	{
331	#if ENABLE_DNS
332	dns_forw_port = atoi (val);
333	#endif
334	}
335	else if (!strcmp (var, "http-proxy-host"))
336	{
337	#if ENABLE_HTTP_PROXY
338	free (proxy_host), proxy_host = strdup (val);
339	#endif
340	}
341	else if (!strcmp (var, "http-proxy-port"))
342	{
343	#if ENABLE_HTTP_PROXY
344	proxy_port = atoi (val);
345	#endif
346	}
347	else if (!strcmp (var, "http-proxy-auth"))
348	{
349	#if ENABLE_HTTP_PROXY
350	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
351	#endif
352	}
353
354	/* node-specific, non-defaultable */
355	else if (node != &default_node && !strcmp (var, "hostname"))
356	free (node->hostname), node->hostname = strdup (val);
357
358	/* node-specific, defaultable */
359	else if (!strcmp (var, "udp-port"))
360	node->udp_port = atoi (val);
361	else if (!strcmp (var, "tcp-port"))
362	node->tcp_port = atoi (val);
363	else if (!strcmp (var, "dns-hostname"))
364	{
365	#if ENABLE_DNS
366	free (node->dns_hostname), node->dns_hostname = strdup (val);
367	#endif
368	}
369	else if (!strcmp (var, "dns-port"))
370	{
371	#if ENABLE_DNS
372	node->dns_port = atoi (val);
373	#endif
374	}
375	else if (!strcmp (var, "dns-domain"))
376	{
377	#if ENABLE_DNS
378	free (node->domain), node->domain = strdup (val);
379	#endif
380	}
381	else if (!strcmp (var, "router-priority"))
382	node->routerprio = atoi (val);
383	else if (!strcmp (var, "max-retry"))
384	node->max_retry = atoi (val);
385	else if (!strcmp (var, "connect"))
386	{
387	if (!strcmp (val, "ondemand"))
388	node->connectmode = conf_node::C_ONDEMAND;
389	else if (!strcmp (val, "never"))
390	node->connectmode = conf_node::C_NEVER;
391	else if (!strcmp (val, "always"))
392	node->connectmode = conf_node::C_ALWAYS;
393	else if (!strcmp (val, "disabled"))
394	node->connectmode = conf_node::C_DISABLED;
395	else
396	slog (L_WARN,
397	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
398	var, fname, lineno);
399	}
400	else if (!strcmp (var, "inherit-tos"))
401	parse_bool (node->inherit_tos, "inherit-tos", true, false);
402	else if (!strcmp (var, "compress"))
403	parse_bool (node->compress, "compress", true, false);
404	// all these bool options really really cost a lot of executable size!
405	else if (!strcmp (var, "enable-tcp"))
406	{
407	#if ENABLE_TCP
408	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
409	#endif
410	}
411	else if (!strcmp (var, "enable-icmp"))
412	{
413	#if ENABLE_ICMP
414	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
415	#endif
416	}
417	else if (!strcmp (var, "enable-dns"))
418	{
419	#if ENABLE_DNS
420	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
421	#endif
422	}
423	else if (!strcmp (var, "enable-udp"))
424	{
425	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
426	}
427	else if (!strcmp (var, "enable-rawip"))
428	{
429	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
430	}
431
432	// unknown or misplaced
433	else
434	slog (L_WARN,
435	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
436	var, fname, lineno);
437	}	589	}
438		590
439	fclose (f);	591	fclose (f);
		592
		593	parse_argv ();
440	}	594	}
441	else	595	else
442	{	596	{
443	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	597	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
444	exit (EXIT_FAILURE);	598	exit (EXIT_FAILURE);
445	}	599	}
		600	}
446		601
		602	configuration_parser::configuration_parser (configuration &conf,
		603	bool need_keys,
		604	int argc,
		605	char **argv)
		606	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		607	{
		608	char *fname;
		609
		610	conf.clear ();
		611	node = &conf.default_node;
		612
		613	asprintf (&fname, "%s/gvpe.conf", confbase);
		614	parse_file (fname);
447	free (fname);	615	free (fname);
448		616
449	fname = config_filename (prikeyfile, "hostkey");	617	fname = conf.config_filename (conf.prikeyfile, "hostkey");
450		618
451	f = fopen (fname, "r");	619	if (FILE *f = fopen (fname, "r"))
452	if (f)
453	{	620	{
454	rsa_key = RSA_new ();	621	conf.rsa_key = RSA_new ();
455		622
456	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	623	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
457	{	624	{
458	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	625	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
459	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	626	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
460	exit (EXIT_FAILURE);	627	exit (EXIT_FAILURE);
461	}	628	}
462		629
463	require (RSA_blinding_on (rsa_key, 0));	630	require (RSA_blinding_on (conf.rsa_key, 0));
464		631
465	fclose (f);	632	fclose (f);
466	}	633	}
467	else	634	else
468	{	635	{
…		…
470		637
471	if (need_keys)	638	if (need_keys)
472	exit (EXIT_FAILURE);	639	exit (EXIT_FAILURE);
473	}	640	}
474		641
		642	free (fname);
		643
475	if (need_keys && ::thisnode	644	if (need_keys && ::thisnode
476	&& rsa_key && thisnode && thisnode->rsa_key)	645	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
477	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	646	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
478	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	647	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
479	{	648	{
480	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	649	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
481	exit (EXIT_FAILURE);	650	exit (EXIT_FAILURE);
482	}	651	}
483		652
484	free (fname);	653	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		654	(*i)->finalise ();
485	}	655	}
486		656
		657	char *
487	char configuration::config_filename (const char name, const char *dflt)	658	configuration::config_filename (const char name, const char dflt)
488	{	659	{
489	char *fname;	660	char *fname;
490		661
491	asprintf (&fname, name ? name : dflt, ::thisnode);	662	asprintf (&fname, name ? name : dflt, ::thisnode);
492		663
…		…
496	asprintf (&fname, "%s/%s", confbase, rname);	667	asprintf (&fname, "%s/%s", confbase, rname);
497	free (rname);	668	free (rname);
498	}	669	}
499		670
500	return fname;	671	return fname;
		672	}
		673
		674	void
		675	conf_node::print ()
		676	{
		677	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		678	id,
		679	id >> 8, id & 0xff,
		680	compress ? 'Y' : 'N',
		681	connectmode == C_ONDEMAND ? "ondemand"
		682	: connectmode == C_NEVER ? "never"
		683	: connectmode == C_ALWAYS ? "always"
		684	: connectmode == C_DISABLED ? "disabled"
		685	: "",
		686	nodename,
		687	protocols,
		688	hostname ? hostname : "",
		689	hostname ? ":" : "",
		690	hostname ? udp_port : 0
		691	);
501	}	692	}
502		693
503	void	694	void
504	configuration::print ()	695	configuration::print ()
505	{	696	{
…		…
512	printf (_("interface: %s\n"), ifname);	703	printf (_("interface: %s\n"), ifname);
513	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	704	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
514	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	705	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
515	printf ("\n");	706	printf ("\n");
516		707
517	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	708	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
518	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	709	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
519		710
520	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	711	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
521	(*i)->print ();	712	(*i)->print ();
522		713
523	printf ("\n");	714	printf ("\n");
…		…
533	configuration::~configuration ()	724	configuration::~configuration ()
534	{	725	{
535	cleanup ();	726	cleanup ();
536	}	727	}
537		728
538

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Comparing gvpe/src/conf.C (file contents): Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs. Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC