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

Comparing gvpe/src/conf.C (file contents):
Revision 1.34 by pcg, Thu Mar 17 23:59:37 2005 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) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008 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>
37	#include <openssl/pem.h>	47	#include <openssl/pem.h>
38	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
39	#include <openssl/rand.h>	49	#include <openssl/rand.h>
40	#include <openssl/bn.h>	50	#include <openssl/bn.h>
41		51
42	#include "gettext.h"
43
44	#include "conf.h"	52	#include "conf.h"
45	#include "slog.h"	53	#include "slog.h"
46	#include "util.h"	54	#include "util.h"
47		55
48	char *confbase;	56	char *confbase;
49	char *thisnode;	57	char *thisnode;
50	char *identname;	58	char *identname;
51		59
52	struct configuration conf;	60	struct configuration conf;
53		61
		62	u8
54	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
55	{	64	{
56	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
57	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
58	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
59	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
60	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	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";
68	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
69	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
70	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
71	if (protocol & PROT_DNSv4 ) return "dns";	81	if (protocol & PROT_DNSv4 ) return "dns";
72		82
73	return "<unknown>";	83	return "<unknown>";
74	}	84	}
75		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;
		108	}
		109
76	void	110	void
77	conf_node::print ()	111	conf_node::print ()
78	{	112	{
79	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",
80	id,	114	id,
81	id >> 8, id & 0xff,	115	id >> 8, id & 0xff,
82	compress ? 'Y' : 'N',	116	compress ? 'Y' : 'N',
83	connectmode == C_ONDEMAND ? "ondemand" :	117	connectmode == C_ONDEMAND ? "ondemand"
84	connectmode == C_NEVER ? "never" :	118	: connectmode == C_NEVER ? "never"
85	connectmode == C_ALWAYS ? "always" : "",	119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
86	nodename,	122	nodename,
87	hostname ? hostname : "",	123	hostname ? hostname : "",
88	hostname ? ":" : "",	124	hostname ? ":" : "",
89	hostname ? udp_port : 0	125	hostname ? udp_port : 0
90	);	126	);
91	}	127	}
92		128
93	conf_node::~conf_node ()	129	conf_node::~conf_node ()
94	{	130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
95	if (rsa_key)	134	if (rsa_key)
96	RSA_free (rsa_key);	135	RSA_free (rsa_key);
97		136
98	free (nodename);	137	free (nodename);
99	free (hostname);	138	free (hostname);
		139	free (if_up_data);
100	#if ENABLE_DNS	140	#if ENABLE_DNS
101	free (domain);	141	free (domain);
102	free (dns_hostname);	142	free (dns_hostname);
103	#endif	143	#endif
		144	#endif
104	}	145	}
105		146
		147	void
106	void configuration::init ()	148	configuration::init ()
107	{	149	{
108	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
109		151
110	mtu = DEFAULT_MTU;	152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
111	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
112	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
113	llevel = L_INFO;	156	llevel = L_INFO;
114	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
115	#if ENABLE_ICMP	158	#if ENABLE_ICMP
…		…
120	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
121	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
122	default_node.compress = true;	165	default_node.compress = true;
123	default_node.protocols = 0;	166	default_node.protocols = 0;
124	default_node.max_retry = DEFAULT_MAX_RETRY;	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 ("");
125		171
126	#if ENABLE_DNS	172	#if ENABLE_DNS
127	default_node.dns_port = 0; // default is 0 == client	173	default_node.dns_port = 0; // default is 0 == client
		174
128	dns_forw_host = strdup ("127.0.0.1");	175	dns_forw_host = strdup ("127.0.0.1");
129	dns_forw_port = 53;	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;
130	#endif	181	#endif
131		182
132	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
133	}	184	}
134		185
		186	void
135	void configuration::cleanup()	187	configuration::cleanup ()
136	{	188	{
137	if (rsa_key)	189	if (rsa_key)
138	RSA_free (rsa_key);	190	RSA_free (rsa_key);
139		191
140	rsa_key = 0;	192	rsa_key = 0;
141		193
142	free (pidfilename); pidfilename = 0;	194	free (pidfilename); pidfilename = 0;
143	free (ifname); ifname = 0;	195	free (ifname); ifname = 0;
144	#if ENABLE_HTTP_PROXY	196	#if ENABLE_HTTP_PROXY
145	free (proxy_host); proxy_host = 0;	197	free (proxy_host); proxy_host = 0;
146	free (proxy_auth); proxy_auth = 0;	198	free (proxy_auth); proxy_auth = 0;
147	#endif	199	#endif
148	#if ENABLE_DNS	200	#if ENABLE_DNS
149	free (dns_forw_host); dns_forw_host = 0;	201	free (dns_forw_host); dns_forw_host = 0;
150	#endif	202	#endif
		203	free (script_if_up); script_if_up = 0;
		204	free (script_node_up); script_node_up = 0;
		205	free (script_node_change); script_node_change = 0;
		206	free (script_node_down); script_node_down = 0;
151	}	207	}
152		208
153	void	209	void
154	configuration::clear_config ()	210	configuration::clear ()
155	{	211	{
156	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)
157	delete *i;	213	delete *i;
158		214
159	nodes.clear ();	215	nodes.clear ();
160		216
161	cleanup ();	217	cleanup ();
162	init ();	218	init ();
163	}	219	}
164		220
165	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
166	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
167	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
168	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
169	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
170	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
171	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
172	else \	228	else \
173	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
174	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
175	name, var, fname, lineno);
176		231
177	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)
178	{	560	{
179	char *fname;	561	char *fname;
180	FILE *f;	562	FILE *f;
181		563
182	clear_config ();	564	conf.clear ();
183		565
184	asprintf (&fname, "%s/gvpe.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
185	f = fopen (fname, "r");	567	f = fopen (fname, "r");
186		568
187	if (f)	569	if (f)
188	{	570	{
189	char line[16384];	571	char line[16384];
190	int lineno = 0;	572	int lineno = 0;
191	char var, val;	573	node = &conf.default_node;
192	conf_node *node = &default_node;
193		574
194	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
195	{	576	{
196	lineno++;	577	lineno++;
197		578
198	{	579	const char *warn = parse_line (line);
199	char *end = line + strlen (line);
200		580
201	while (*end < ' ' && end >= line)	581	if (warn)
202	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
203
204	*++end = 0;
205	}
206
207	char *tok = line;
208
209	retry:
210	var = strtok (tok, "\t =");
211	tok = 0;
212
213	if (!var \|\| !var[0])
214	continue; /* no tokens on this line */
215
216	if (var[0] == '#')
217	continue; /* comment: ignore */
218
219	val = strtok (NULL, "\t\n\r =");
220
221	if (!val \|\| val[0] == '#')
222	{
223	slog (L_WARN,
224	_("no value for variable `%s', at '%s' line %d"),
225	var, fname, lineno);
226	break;
227	}
228
229	if (!strcmp (var, "on"))
230	{
231	if (!::thisnode
232	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
233	\|\| !strcmp (val, ::thisnode))
234	goto retry;
235
236	continue;
237	}
238
239	// truly global
240	if (!strcmp (var, "loglevel"))
241	{
242	loglevel l = string_to_loglevel (val);
243
244	if (l != L_NONE)
245	llevel = l;
246	else
247	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
248	}
249	else if (!strcmp (var, "ip-proto"))
250	ip_proto = atoi (val);
251	else if (!strcmp (var, "icmp-type"))
252	{
253	#if ENABLE_ICMP
254	icmp_type = atoi (val);
255	#endif
256	}
257
258	// per config
259	else if (!strcmp (var, "node"))
260	{
261	default_node.id++;
262
263	node = new conf_node (default_node);
264
265	nodes.push_back (node);
266
267	node->nodename = strdup (val);
268
269	{
270	char *fname;
271	FILE *f;
272
273	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
274
275	f = fopen (fname, "r");
276	if (f)
277	{
278	node->rsa_key = RSA_new ();
279
280	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
281	{
282	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
283	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
284	exit (EXIT_FAILURE);
285	}
286
287	require (RSA_blinding_on (node->rsa_key, 0));
288
289	fclose (f);
290	}
291	else
292	{
293	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
294
295	if (need_keys)
296	exit (EXIT_FAILURE);
297	}
298
299	free (fname);
300	}
301
302	if (::thisnode && !strcmp (node->nodename, ::thisnode))
303	thisnode = node;
304	}
305	else if (!strcmp (var, "private-key"))
306	free (prikeyfile), prikeyfile = strdup (val);
307	else if (!strcmp (var, "ifpersist"))
308	{
309	parse_bool (ifpersist, "ifpersist", true, false);
310	}
311	else if (!strcmp (var, "ifname"))
312	free (ifname), ifname = strdup (val);
313	else if (!strcmp (var, "rekey"))
314	rekey = atoi (val);
315	else if (!strcmp (var, "keepalive"))
316	keepalive = atoi (val);
317	else if (!strcmp (var, "mtu"))
318	mtu = atoi (val);
319	else if (!strcmp (var, "if-up"))
320	free (script_if_up), script_if_up = strdup (val);
321	else if (!strcmp (var, "node-up"))
322	free (script_node_up), script_node_up = strdup (val);
323	else if (!strcmp (var, "node-down"))
324	free (script_node_down), script_node_down = strdup (val);
325	else if (!strcmp (var, "pid-file"))
326	free (pidfilename), pidfilename = strdup (val);
327	else if (!strcmp (var, "dns-forw-host"))
328	{
329	#if ENABLE_DNS
330	free (dns_forw_host), dns_forw_host = strdup (val);
331	#endif
332	}
333	else if (!strcmp (var, "dns-forw-port"))
334	{
335	#if ENABLE_DNS
336	dns_forw_port = atoi (val);
337	#endif
338	}
339	else if (!strcmp (var, "http-proxy-host"))
340	{
341	#if ENABLE_HTTP_PROXY
342	free (proxy_host), proxy_host = strdup (val);
343	#endif
344	}
345	else if (!strcmp (var, "http-proxy-port"))
346	{
347	#if ENABLE_HTTP_PROXY
348	proxy_port = atoi (val);
349	#endif
350	}
351	else if (!strcmp (var, "http-proxy-auth"))
352	{
353	#if ENABLE_HTTP_PROXY
354	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
355	#endif
356	}
357
358	/* node-specific, non-defaultable */
359	else if (node != &default_node && !strcmp (var, "hostname"))
360	free (node->hostname), node->hostname = strdup (val);
361
362	/* node-specific, defaultable */
363	else if (!strcmp (var, "udp-port"))
364	node->udp_port = atoi (val);
365	else if (!strcmp (var, "tcp-port"))
366	node->tcp_port = atoi (val);
367	else if (!strcmp (var, "dns-hostname"))
368	{
369	#if ENABLE_DNS
370	free (node->dns_hostname), node->dns_hostname = strdup (val);
371	#endif
372	}
373	else if (!strcmp (var, "dns-port"))
374	{
375	#if ENABLE_DNS
376	node->dns_port = atoi (val);
377	#endif
378	}
379	else if (!strcmp (var, "dns-domain"))
380	{
381	#if ENABLE_DNS
382	free (node->domain), node->domain = strdup (val);
383	#endif
384	}
385	else if (!strcmp (var, "router-priority"))
386	node->routerprio = atoi (val);
387	else if (!strcmp (var, "max-retry"))
388	node->max_retry = atoi (val);
389	else if (!strcmp (var, "connect"))
390	{
391	if (!strcmp (val, "ondemand"))
392	node->connectmode = conf_node::C_ONDEMAND;
393	else if (!strcmp (val, "never"))
394	node->connectmode = conf_node::C_NEVER;
395	else if (!strcmp (val, "always"))
396	node->connectmode = conf_node::C_ALWAYS;
397	else if (!strcmp (val, "disabled"))
398	node->connectmode = conf_node::C_DISABLED;
399	else
400	slog (L_WARN,
401	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
402	var, fname, lineno);
403	}
404	else if (!strcmp (var, "inherit-tos"))
405	{
406	parse_bool (node->inherit_tos, "inherit-tos", true, false);
407	}
408	else if (!strcmp (var, "compress"))
409	{
410	parse_bool (node->compress, "compress", true, false);
411	}
412	// all these bool options really really cost a lot of executable size!
413	else if (!strcmp (var, "enable-tcp"))
414	{
415	#if ENABLE_TCP
416	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
417	#endif
418	}
419	else if (!strcmp (var, "enable-icmp"))
420	{
421	#if ENABLE_ICMP
422	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
423	#endif
424	}
425	else if (!strcmp (var, "enable-dns"))
426	{
427	#if ENABLE_DNS
428	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
429	#endif
430	}
431	else if (!strcmp (var, "enable-udp"))
432	{
433	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
434	}
435	else if (!strcmp (var, "enable-rawip"))
436	{
437	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
438	}
439
440	// unknown or misplaced
441	else
442	slog (L_WARN,
443	_("unknown or misplaced variable `%s', at '%s' line %d"),
444	var, fname, lineno);
445	}	583	}
446		584
447	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
448	}	588	}
449	else	589	else
450	{	590	{
451	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));
452	exit (EXIT_FAILURE);	592	exit (EXIT_FAILURE);
453	}	593	}
454		594
455	free (fname);	595	free (fname);
456		596
457	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
458		598
459	f = fopen (fname, "r");	599	f = fopen (fname, "r");
460	if (f)	600	if (f)
461	{	601	{
462	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
463		603
464	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
465	{	605	{
466	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
467	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));
468	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
469	}	609	}
470		610
471	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
472		612
473	fclose (f);	613	fclose (f);
474	}	614	}
475	else	615	else
476	{	616	{
…		…
479	if (need_keys)	619	if (need_keys)
480	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
481	}	621	}
482		622
483	if (need_keys && ::thisnode	623	if (need_keys && ::thisnode
484	&& rsa_key && thisnode && thisnode->rsa_key)	624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
485	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	625	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
486	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
487	{	627	{
488	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	628	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
489	exit (EXIT_FAILURE);	629	exit (EXIT_FAILURE);
490	}	630	}
491		631
492	free (fname);	632	free (fname);
493	}
494		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
495	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
496	{	640	{
497	char *fname;	641	char *fname;
498		642
499	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
500		644
…		…
541	configuration::~configuration ()	685	configuration::~configuration ()
542	{	686	{
543	cleanup ();	687	cleanup ();
544	}	688	}
545		689
546

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Comparing gvpe/src/conf.C (file contents): Revision 1.34 by pcg, Thu Mar 17 23:59:37 2005 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 1.34 by pcg, Thu Mar 17 23:59:37 2005 UTC vs.
Revision 1.53 by root, Tue Feb 8 23:13:48 2011 UTC