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

Comparing gvpe/src/conf.C (file contents):
Revision 1.25 by pcg, Mon May 10 20:13:09 2004 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.c -- configuration code
3	Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	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
6	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
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	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
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	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
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	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.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <cstdio>	34	#include <cstdio>
35	#include <openssl/pem.h>	47	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	49	#include <openssl/rand.h>
38	#include <openssl/bn.h>	50	#include <openssl/bn.h>
39		51
40	#include "gettext.h"
41
42	#include "conf.h"	52	#include "conf.h"
43	#include "slog.h"	53	#include "slog.h"
44	#include "util.h"	54	#include "util.h"
45		55
46	char *confbase;	56	char *confbase;
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	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		70
60	return 0;	71	return 0;
61	}	72	}
62		73
		74	const char *
63	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
64	{	76	{
65	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	81	if (protocol & PROT_DNSv4 ) return "dns";
70		82
71	return "<unknown>";	83	return "<unknown>";
72	}	84	}
73		85
74	void	86	static bool
75	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
76	{	88	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	90	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	91	return true;
80	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
82	connectmode == C_NEVER ? "never" :	94
83	connectmode == C_ALWAYS ? "always" : "",	95	return false;
84	nodename,	96	}
85	hostname ? hostname : "",	97
86	hostname ? ":" : "",	98	bool
87	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
88	);	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;
89	}	108	}
90		109
91	conf_node::~conf_node ()	110	conf_node::~conf_node ()
92	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
93	if (rsa_key)	115	if (rsa_key)
94	RSA_free (rsa_key);	116	RSA_free (rsa_key);
95		117
96	free (nodename);	118	free (nodename);
97	free (hostname);	119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
98	}	126	}
99		127
		128	void
100	void configuration::init ()	129	configuration::init ()
101	{	130	{
102	asprintf (&confbase, "%s/vpe", CONFDIR);
103
104	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
105		132
106	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
107	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
108	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
109	llevel = L_INFO;	137	llevel = L_INFO;
110	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
111	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
114		142
115	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
116	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
117	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
118	default_node.compress = true;	146	default_node.compress = true;
119	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
		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 ("");
120		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_forw_host = strdup ("127.0.0.1");
		157	dns_forw_port = 53;
		158	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		159	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		160	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		161	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		162	#endif
		163
121	conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid");	164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
122	}	165	}
123		166
		167	void
124	void configuration::cleanup()	168	configuration::cleanup ()
125	{	169	{
126	if (rsa_key)	170	if (rsa_key)
127	RSA_free (rsa_key);	171	RSA_free (rsa_key);
128		172
129	rsa_key = 0;	173	rsa_key = 0;
130		174
131	free (pidfilename); pidfilename = 0;	175	free (pidfilename); pidfilename = 0;
132	free (ifname); ifname = 0;	176	free (ifname); ifname = 0;
133	#if ENABLE_HTTP_PROXY	177	#if ENABLE_HTTP_PROXY
134	free (proxy_host); proxy_host = 0;	178	free (proxy_host); proxy_host = 0;
135	free (proxy_auth); proxy_auth = 0;	179	free (proxy_auth); proxy_auth = 0;
136	#endif	180	#endif
		181	#if ENABLE_DNS
		182	free (dns_forw_host); dns_forw_host = 0;
		183	#endif
		184	free (script_if_up); script_if_up = 0;
		185	free (script_node_up); script_node_up = 0;
		186	free (script_node_change); script_node_change = 0;
		187	free (script_node_down); script_node_down = 0;
137	}	188	}
138		189
139	void	190	void
140	configuration::clear_config ()	191	configuration::clear ()
141	{	192	{
142	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	193	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
143	delete *i;	194	delete *i;
144		195
145	nodes.clear ();	196	nodes.clear ();
146		197
147	cleanup ();	198	cleanup ();
148	init ();	199	init ();
149	}	200	}
150		201
151	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
152	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
153	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
154	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
155	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
156	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
157	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
158	else \	209	else \
159	slog (L_WARN, \	210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
160	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	211	} while (0)
161	name, var, fname, lineno);
162		212
163	void configuration::read_config (bool need_keys)	213	const char *
		214	configuration_parser::parse_line (char *line)
		215	{
		216	{
		217	char *end = line + strlen (line);
		218
		219	while (*end < ' ' && end >= line)
		220	end--;
		221
		222	*++end = 0;
		223	}
		224
		225	char *tok = line;
		226	const char *var = strtok (tok, "\t =");
		227	tok = 0;
		228
		229	if (!var \|\| !var[0])
		230	return 0; /* no tokens on this line */
		231
		232	if (var[0] == '#')
		233	return 0; /* comment: ignore */
		234
		235	char *val = strtok (NULL, "\t\n\r =");
		236
		237	if (!val \|\| val[0] == '#')
		238	return _("no value given for variable. (ignored)");
		239
		240	if (!strcmp (var, "on"))
		241	{
		242	if (!::thisnode
		243	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		244	\|\| !strcmp (val, ::thisnode))
		245	return parse_line (strtok (NULL, "\n\r"));
		246	else
		247	return 0;
		248	}
		249
		250	// truly global
		251	if (!strcmp (var, "loglevel"))
		252	{
		253	loglevel l = string_to_loglevel (val);
		254
		255	if (l == L_NONE)
		256	return _("unknown loglevel. (skipping)");
		257	}
		258	else if (!strcmp (var, "ip-proto"))
		259	conf.ip_proto = atoi (val);
		260	else if (!strcmp (var, "icmp-type"))
		261	{
		262	#if ENABLE_ICMP
		263	conf.icmp_type = atoi (val);
		264	#endif
		265	}
		266
		267	// per config
		268	else if (!strcmp (var, "node"))
		269	{
		270	parse_argv ();
		271
		272	conf.default_node.id++;
		273	node = new conf_node (conf.default_node);
		274	conf.nodes.push_back (node);
		275	node->nodename = strdup (val);
		276
		277	{
		278	char *fname;
		279	FILE *f;
		280
		281	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		282
		283	f = fopen (fname, "r");
		284	if (f)
		285	{
		286	node->rsa_key = RSA_new ();
		287
		288	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		289	{
		290	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		291	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		292	exit (EXIT_FAILURE);
		293	}
		294
		295	require (RSA_blinding_on (node->rsa_key, 0));
		296
		297	fclose (f);
		298	}
		299	else
		300	{
		301	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		302
		303	if (need_keys)
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	free (fname);
		308	}
		309
		310	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		311	conf.thisnode = node;
		312	}
		313	else if (!strcmp (var, "private-key"))
		314	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		315	else if (!strcmp (var, "ifpersist"))
		316	parse_bool (conf.ifpersist, "ifpersist", true, false);
		317	else if (!strcmp (var, "ifname"))
		318	free (conf.ifname), conf.ifname = strdup (val);
		319	else if (!strcmp (var, "rekey"))
		320	conf.rekey = atoi (val);
		321	else if (!strcmp (var, "keepalive"))
		322	conf.keepalive = atoi (val);
		323	else if (!strcmp (var, "mtu"))
		324	conf.mtu = atoi (val);
		325	else if (!strcmp (var, "nfmark"))
		326	conf.nfmark = atoi (val);
		327	else if (!strcmp (var, "if-up"))
		328	free (conf.script_if_up), conf.script_if_up = strdup (val);
		329	else if (!strcmp (var, "node-up"))
		330	free (conf.script_node_up), conf.script_node_up = strdup (val);
		331	else if (!strcmp (var, "node-change"))
		332	free (conf.script_node_change), conf.script_node_change = strdup (val);
		333	else if (!strcmp (var, "node-down"))
		334	free (conf.script_node_down), conf.script_node_down = strdup (val);
		335	else if (!strcmp (var, "pid-file"))
		336	free (conf.pidfilename), conf.pidfilename = strdup (val);
		337	else if (!strcmp (var, "dns-forw-host"))
		338	{
		339	#if ENABLE_DNS
		340	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		341	#endif
		342	}
		343	else if (!strcmp (var, "dns-forw-port"))
		344	{
		345	#if ENABLE_DNS
		346	conf.dns_forw_port = atoi (val);
		347	#endif
		348	}
		349	else if (!strcmp (var, "dns-timeout-factor"))
		350	{
		351	#if ENABLE_DNS
		352	conf.dns_timeout_factor = atof (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-send-interval"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_send_interval = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-overlap-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_overlap_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-max-outstanding"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_max_outstanding = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "http-proxy-host"))
		374	{
		375	#if ENABLE_HTTP_PROXY
		376	free (conf.proxy_host), conf.proxy_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "http-proxy-port"))
		380	{
		381	#if ENABLE_HTTP_PROXY
		382	conf.proxy_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "http-proxy-auth"))
		386	{
		387	#if ENABLE_HTTP_PROXY
		388	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		389	#endif
		390	}
		391
		392	/* node-specific, non-defaultable */
		393	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		394	free (node->hostname), node->hostname = strdup (val);
		395
		396	/* node-specific, defaultable */
		397	else if (!strcmp (var, "udp-port"))
		398	node->udp_port = atoi (val);
		399	else if (!strcmp (var, "tcp-port"))
		400	node->tcp_port = atoi (val);
		401	else if (!strcmp (var, "dns-hostname"))
		402	{
		403	#if ENABLE_DNS
		404	free (node->dns_hostname), node->dns_hostname = strdup (val);
		405	#endif
		406	}
		407	else if (!strcmp (var, "dns-port"))
		408	{
		409	#if ENABLE_DNS
		410	node->dns_port = atoi (val);
		411	#endif
		412	}
		413	else if (!strcmp (var, "dns-domain"))
		414	{
		415	#if ENABLE_DNS
		416	free (node->domain), node->domain = strdup (val);
		417	#endif
		418	}
		419	else if (!strcmp (var, "if-up-data"))
		420	free (node->if_up_data), node->if_up_data = strdup (val);
		421	else if (!strcmp (var, "router-priority"))
		422	node->routerprio = atoi (val);
		423	else if (!strcmp (var, "max-retry"))
		424	node->max_retry = atoi (val);
		425	else if (!strcmp (var, "connect"))
		426	{
		427	if (!strcmp (val, "ondemand"))
		428	node->connectmode = conf_node::C_ONDEMAND;
		429	else if (!strcmp (val, "never"))
		430	node->connectmode = conf_node::C_NEVER;
		431	else if (!strcmp (val, "always"))
		432	node->connectmode = conf_node::C_ALWAYS;
		433	else if (!strcmp (val, "disabled"))
		434	node->connectmode = conf_node::C_DISABLED;
		435	else
		436	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		437	}
		438	else if (!strcmp (var, "inherit-tos"))
		439	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		440	else if (!strcmp (var, "compress"))
		441	parse_bool (node->compress, "compress", true, false);
		442	// all these bool options really really cost a lot of executable size!
		443	else if (!strcmp (var, "enable-tcp"))
		444	{
		445	#if ENABLE_TCP
		446	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		447	#endif
		448	}
		449	else if (!strcmp (var, "enable-icmp"))
		450	{
		451	#if ENABLE_ICMP
		452	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		453	#endif
		454	}
		455	else if (!strcmp (var, "enable-dns"))
		456	{
		457	#if ENABLE_DNS
		458	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		459	#endif
		460	}
		461	else if (!strcmp (var, "enable-udp"))
		462	{
		463	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		464	}
		465	else if (!strcmp (var, "enable-rawip"))
		466	{
		467	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		468	}
		469	else if (!strcmp (var, "allow-direct"))
		470	node->allow_direct.push_back (strdup (val));
		471	else if (!strcmp (var, "deny-direct"))
		472	node->deny_direct.push_back (strdup (val));
		473	else if (!strcmp (var, "max-ttl"))
		474	node->max_ttl = atof (val);
		475	else if (!strcmp (var, "max-queue"))
		476	node->max_queue = atoi (val);
		477
		478	// unknown or misplaced
		479	else
		480	return _("unknown configuration directive. (ignored)");
		481
		482	return 0;
		483	}
		484
		485	void
		486	conf_node::finalise ()
		487	{
		488	if (max_queue < 1)
		489	{
		490	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		491	max_queue = 1;
		492	}
		493
		494	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		495	{
		496	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		497	connectmode = C_ALWAYS;
		498	}
		499	}
		500
		501	void
		502	configuration_parser::parse_argv ()
		503	{
		504	for (int i = 0; i < argc; ++i)
		505	{
		506	char *v = argv [i];
		507
		508	if (!*v)
		509	continue;
		510
		511	char *enode = v;
		512
		513	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		514	enode++;
		515
		516	if (*enode != '.')
		517	enode = 0;
		518
		519	char *wnode = node == &conf.default_node
		520	? 0
		521	: node->nodename;
		522
		523	if ((!wnode && !enode)
		524	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		525	{
		526	const char *warn = parse_line (enode ? enode + 1 : v);
		527
		528	if (warn)
		529	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		530
		531	*v = 0;
		532	}
		533	}
		534	}
		535
		536	configuration_parser::configuration_parser (configuration &conf,
		537	bool need_keys,
		538	int argc,
		539	char **argv)
		540	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
164	{	541	{
165	char *fname;	542	char *fname;
166	FILE *f;	543	FILE *f;
167		544
168	clear_config ();	545	conf.clear ();
169		546
170	asprintf (&fname, "%s/vped.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
171	f = fopen (fname, "r");	548	f = fopen (fname, "r");
172		549
173	if (f)	550	if (f)
174	{	551	{
175	char line[16384];	552	char line[16384];
176	int lineno = 0;	553	int lineno = 0;
177	char var, val;	554	node = &conf.default_node;
178	conf_node *node = &default_node;
179		555
180	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
181	{	557	{
182	lineno++;	558	lineno++;
183		559
184	{	560	const char *warn = parse_line (line);
185	char *end = line + strlen (line);
186		561
187	while (*end < ' ' && end >= line)	562	if (warn)
188	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
189
190	*++end = 0;
191	}
192
193	char *tok = line;
194
195	retry:
196	var = strtok (tok, "\t =");
197	tok = 0;
198
199	if (!var \|\| !var[0])
200	continue; /* no tokens on this line */
201
202	if (var[0] == '#')
203	continue; /* comment: ignore */
204
205	val = strtok (NULL, "\t\n\r =");
206
207	if (!val \|\| val[0] == '#')
208	{
209	slog (L_WARN,
210	_("no value for variable `%s', at '%s' line %d"),
211	var, fname, lineno);
212	break;
213	}
214
215	if (!strcmp (var, "on"))
216	{
217	if (!::thisnode
218	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
219	\|\| !strcmp (val, ::thisnode))
220	goto retry;
221
222	continue;
223	}
224
225	// truly global
226	if (!strcmp (var, "loglevel"))
227	{
228	loglevel l = string_to_loglevel (val);
229
230	if (l != L_NONE)
231	llevel = l;
232	else
233	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
234	}
235	else if (!strcmp (var, "ip-proto"))
236	ip_proto = atoi (val);
237	else if (!strcmp (var, "icmp-type"))
238	{
239	#if ENABLE_ICMP
240	icmp_type = atoi (val);
241	#endif
242	}
243
244	// per config
245	else if (!strcmp (var, "node"))
246	{
247	default_node.id++;
248
249	node = new conf_node (default_node);
250
251	nodes.push_back (node);
252
253	node->nodename = strdup (val);
254
255	{
256	char *fname;
257	FILE *f;
258
259	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
260
261	f = fopen (fname, "r");
262	if (f)
263	{
264	node->rsa_key = RSA_new ();
265
266	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
267	{
268	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
269	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
270	exit (EXIT_FAILURE);
271	}
272
273	require (RSA_blinding_on (node->rsa_key, 0));
274
275	fclose (f);
276	}
277	else
278	{
279	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
280
281	if (need_keys)
282	exit (EXIT_FAILURE);
283	}
284
285	free (fname);
286	}
287
288	if (::thisnode && !strcmp (node->nodename, ::thisnode))
289	thisnode = node;
290	}
291	else if (!strcmp (var, "private-key"))
292	free (prikeyfile), prikeyfile = strdup (val);
293	else if (!strcmp (var, "ifpersist"))
294	{
295	parse_bool (ifpersist, "ifpersist", true, false);
296	}
297	else if (!strcmp (var, "ifname"))
298	free (ifname), ifname = strdup (val);
299	else if (!strcmp (var, "rekey"))
300	rekey = atoi (val);
301	else if (!strcmp (var, "keepalive"))
302	keepalive = atoi (val);
303	else if (!strcmp (var, "mtu"))
304	mtu = atoi (val);
305	else if (!strcmp (var, "if-up"))
306	free (script_if_up), script_if_up = strdup (val);
307	else if (!strcmp (var, "node-up"))
308	free (script_node_up), script_node_up = strdup (val);
309	else if (!strcmp (var, "node-down"))
310	free (script_node_down), script_node_down = strdup (val);
311	else if (!strcmp (var, "pid-file"))
312	free (pidfilename), pidfilename = strdup (val);
313	else if (!strcmp (var, "http-proxy-host"))
314	{
315	#if ENABLE_HTTP_PROXY
316	free (proxy_host), proxy_host = strdup (val);
317	#endif
318	}
319	else if (!strcmp (var, "http-proxy-port"))
320	{
321	#if ENABLE_HTTP_PROXY
322	proxy_port = atoi (val);
323	#endif
324	}
325	else if (!strcmp (var, "http-proxy-auth"))
326	{
327	#if ENABLE_HTTP_PROXY
328	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
329	#endif
330	}
331
332	/* node-specific, non-defaultable */
333	else if (node != &default_node && !strcmp (var, "hostname"))
334	free (node->hostname), node->hostname = strdup (val);
335
336	/* node-specific, defaultable */
337	else if (!strcmp (var, "udp-port"))
338	node->udp_port = atoi (val);
339	else if (!strcmp (var, "tcp-port"))
340	node->tcp_port = atoi (val);
341	else if (!strcmp (var, "dns-port"))
342	node->dns_port = atoi (val);
343	else if (!strcmp (var, "router-priority"))
344	node->routerprio = atoi (val);
345	else if (!strcmp (var, "connect"))
346	{
347	if (!strcmp (val, "ondemand"))
348	node->connectmode = conf_node::C_ONDEMAND;
349	else if (!strcmp (val, "never"))
350	node->connectmode = conf_node::C_NEVER;
351	else if (!strcmp (val, "always"))
352	node->connectmode = conf_node::C_ALWAYS;
353	else if (!strcmp (val, "disabled"))
354	node->connectmode = conf_node::C_DISABLED;
355	else
356	slog (L_WARN,
357	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
358	var, fname, lineno);
359	}
360	else if (!strcmp (var, "inherit-tos"))
361	{
362	parse_bool (node->inherit_tos, "inherit-tos", true, false);
363	}
364	else if (!strcmp (var, "compress"))
365	{
366	parse_bool (node->compress, "compress", true, false);
367	}
368	// all these bool options really really cost a lot of executable size!
369	else if (!strcmp (var, "enable-tcp"))
370	{
371	#if ENABLE_TCP
372	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
373	#endif
374	}
375	else if (!strcmp (var, "enable-icmp"))
376	{
377	#if ENABLE_ICMP
378	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
379	#endif
380	}
381	else if (!strcmp (var, "enable-dns"))
382	{
383	#if ENABLE_DNS
384	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
385	#endif
386	}
387	else if (!strcmp (var, "enable-udp"))
388	{
389	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
390	}
391	else if (!strcmp (var, "enable-rawip"))
392	{;
393	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
394	}
395
396	// unknown or misplaced
397	else
398	slog (L_WARN,
399	_("unknown or misplaced variable `%s', at '%s' line %d"),
400	var, fname, lineno);
401	}	564	}
402		565
403	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
404	}	569	}
405	else	570	else
406	{	571	{
407	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	572	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
408	exit (EXIT_FAILURE);	573	exit (EXIT_FAILURE);
409	}	574	}
410		575
411	free (fname);	576	free (fname);
412		577
413	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
414		579
415	f = fopen (fname, "r");	580	f = fopen (fname, "r");
416	if (f)	581	if (f)
417	{	582	{
418	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
419		584
420	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
421	{	586	{
422	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
423	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	588	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
424	exit (EXIT_FAILURE);	589	exit (EXIT_FAILURE);
425	}	590	}
426		591
427	require (RSA_blinding_on (rsa_key, 0));	592	require (RSA_blinding_on (conf.rsa_key, 0));
428		593
429	fclose (f);	594	fclose (f);
430	}	595	}
431	else	596	else
432	{	597	{
…		…
435	if (need_keys)	600	if (need_keys)
436	exit (EXIT_FAILURE);	601	exit (EXIT_FAILURE);
437	}	602	}
438		603
439	if (need_keys && ::thisnode	604	if (need_keys && ::thisnode
440	&& rsa_key && thisnode && thisnode->rsa_key)	605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
441	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	606	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
442	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
443	{	608	{
444	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	609	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
445	exit (EXIT_FAILURE);	610	exit (EXIT_FAILURE);
446	}	611	}
447		612
448	free (fname);	613	free (fname);
449	}
450		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
451	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
452	{	621	{
453	char *fname;	622	char *fname;
454		623
455	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
456		625
…		…
460	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
461	free (rname);	630	free (rname);
462	}	631	}
463		632
464	return fname;	633	return fname;
		634	}
		635
		636	void
		637	conf_node::print ()
		638	{
		639	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		640	id,
		641	id >> 8, id & 0xff,
		642	compress ? 'Y' : 'N',
		643	connectmode == C_ONDEMAND ? "ondemand"
		644	: connectmode == C_NEVER ? "never"
		645	: connectmode == C_ALWAYS ? "always"
		646	: connectmode == C_DISABLED ? "disabled"
		647	: "",
		648	nodename,
		649	protocols,
		650	hostname ? hostname : "",
		651	hostname ? ":" : "",
		652	hostname ? udp_port : 0
		653	);
465	}	654	}
466		655
467	void	656	void
468	configuration::print ()	657	configuration::print ()
469	{	658	{
…		…
476	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
477	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
478	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	667	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
479	printf ("\n");	668	printf ("\n");
480		669
481	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
482	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
483		672
484	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
485	(*i)->print ();	674	(*i)->print ();
486		675
487	printf ("\n");	676	printf ("\n");
488	}	677	}
489		678
490	configuration::configuration ()	679	configuration::configuration ()
491	{	680	{
		681	asprintf (&confbase, "%s/gvpe", CONFDIR);
		682
492	init ();	683	init ();
493	}	684	}
494		685
495	configuration::~configuration ()	686	configuration::~configuration ()
496	{	687	{
497	cleanup ();	688	cleanup ();
498	}	689	}
499		690
500

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Comparing gvpe/src/conf.C (file contents): Revision 1.25 by pcg, Mon May 10 20:13:09 2004 UTC vs. Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.25 by pcg, Mon May 10 20:13:09 2004 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC