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

Comparing gvpe/src/conf.C (file contents):
Revision 1.26 by pcg, Wed May 12 13:32:13 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	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
103		132
104	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
105	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	137	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
109	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
112		142
113	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	146	default_node.compress = true;
117	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 ("");
118		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
119	conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid");	164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
120	}	165	}
121		166
		167	void
122	void configuration::cleanup()	168	configuration::cleanup ()
123	{	169	{
124	if (rsa_key)	170	if (rsa_key)
125	RSA_free (rsa_key);	171	RSA_free (rsa_key);
126		172
127	rsa_key = 0;	173	rsa_key = 0;
128		174
129	free (pidfilename); pidfilename = 0;	175	free (pidfilename); pidfilename = 0;
130	free (ifname); ifname = 0;	176	free (ifname); ifname = 0;
131	#if ENABLE_HTTP_PROXY	177	#if ENABLE_HTTP_PROXY
132	free (proxy_host); proxy_host = 0;	178	free (proxy_host); proxy_host = 0;
133	free (proxy_auth); proxy_auth = 0;	179	free (proxy_auth); proxy_auth = 0;
134	#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;
135	}	188	}
136		189
137	void	190	void
138	configuration::clear_config ()	191	configuration::clear ()
139	{	192	{
140	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)
141	delete *i;	194	delete *i;
142		195
143	nodes.clear ();	196	nodes.clear ();
144		197
145	cleanup ();	198	cleanup ();
146	init ();	199	init ();
147	}	200	}
148		201
149	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
150	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
151	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
152	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
153	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
154	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
155	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
156	else \	209	else \
157	slog (L_WARN, \	210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
158	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	211	} while (0)
159	name, var, fname, lineno);
160		212
161	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)
162	{	541	{
163	char *fname;	542	char *fname;
164	FILE *f;	543	FILE *f;
165		544
166	clear_config ();	545	conf.clear ();
167		546
168	asprintf (&fname, "%s/vped.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
169	f = fopen (fname, "r");	548	f = fopen (fname, "r");
170		549
171	if (f)	550	if (f)
172	{	551	{
173	char line[16384];	552	char line[16384];
174	int lineno = 0;	553	int lineno = 0;
175	char var, val;	554	node = &conf.default_node;
176	conf_node *node = &default_node;
177		555
178	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
179	{	557	{
180	lineno++;	558	lineno++;
181		559
182	{	560	const char *warn = parse_line (line);
183	char *end = line + strlen (line);
184		561
185	while (*end < ' ' && end >= line)	562	if (warn)
186	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
187
188	*++end = 0;
189	}
190
191	char *tok = line;
192
193	retry:
194	var = strtok (tok, "\t =");
195	tok = 0;
196
197	if (!var \|\| !var[0])
198	continue; /* no tokens on this line */
199
200	if (var[0] == '#')
201	continue; /* comment: ignore */
202
203	val = strtok (NULL, "\t\n\r =");
204
205	if (!val \|\| val[0] == '#')
206	{
207	slog (L_WARN,
208	_("no value for variable `%s', at '%s' line %d"),
209	var, fname, lineno);
210	break;
211	}
212
213	if (!strcmp (var, "on"))
214	{
215	if (!::thisnode
216	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
217	\|\| !strcmp (val, ::thisnode))
218	goto retry;
219
220	continue;
221	}
222
223	// truly global
224	if (!strcmp (var, "loglevel"))
225	{
226	loglevel l = string_to_loglevel (val);
227
228	if (l != L_NONE)
229	llevel = l;
230	else
231	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
232	}
233	else if (!strcmp (var, "ip-proto"))
234	ip_proto = atoi (val);
235	else if (!strcmp (var, "icmp-type"))
236	{
237	#if ENABLE_ICMP
238	icmp_type = atoi (val);
239	#endif
240	}
241
242	// per config
243	else if (!strcmp (var, "node"))
244	{
245	default_node.id++;
246
247	node = new conf_node (default_node);
248
249	nodes.push_back (node);
250
251	node->nodename = strdup (val);
252
253	{
254	char *fname;
255	FILE *f;
256
257	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
258
259	f = fopen (fname, "r");
260	if (f)
261	{
262	node->rsa_key = RSA_new ();
263
264	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
265	{
266	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
267	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
268	exit (EXIT_FAILURE);
269	}
270
271	require (RSA_blinding_on (node->rsa_key, 0));
272
273	fclose (f);
274	}
275	else
276	{
277	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
278
279	if (need_keys)
280	exit (EXIT_FAILURE);
281	}
282
283	free (fname);
284	}
285
286	if (::thisnode && !strcmp (node->nodename, ::thisnode))
287	thisnode = node;
288	}
289	else if (!strcmp (var, "private-key"))
290	free (prikeyfile), prikeyfile = strdup (val);
291	else if (!strcmp (var, "ifpersist"))
292	{
293	parse_bool (ifpersist, "ifpersist", true, false);
294	}
295	else if (!strcmp (var, "ifname"))
296	free (ifname), ifname = strdup (val);
297	else if (!strcmp (var, "rekey"))
298	rekey = atoi (val);
299	else if (!strcmp (var, "keepalive"))
300	keepalive = atoi (val);
301	else if (!strcmp (var, "mtu"))
302	mtu = atoi (val);
303	else if (!strcmp (var, "if-up"))
304	free (script_if_up), script_if_up = strdup (val);
305	else if (!strcmp (var, "node-up"))
306	free (script_node_up), script_node_up = strdup (val);
307	else if (!strcmp (var, "node-down"))
308	free (script_node_down), script_node_down = strdup (val);
309	else if (!strcmp (var, "pid-file"))
310	free (pidfilename), pidfilename = strdup (val);
311	else if (!strcmp (var, "http-proxy-host"))
312	{
313	#if ENABLE_HTTP_PROXY
314	free (proxy_host), proxy_host = strdup (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-port"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_port = atoi (val);
321	#endif
322	}
323	else if (!strcmp (var, "http-proxy-auth"))
324	{
325	#if ENABLE_HTTP_PROXY
326	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
327	#endif
328	}
329
330	/* node-specific, non-defaultable */
331	else if (node != &default_node && !strcmp (var, "hostname"))
332	free (node->hostname), node->hostname = strdup (val);
333
334	/* node-specific, defaultable */
335	else if (!strcmp (var, "udp-port"))
336	node->udp_port = atoi (val);
337	else if (!strcmp (var, "tcp-port"))
338	node->tcp_port = atoi (val);
339	else if (!strcmp (var, "dns-port"))
340	node->dns_port = atoi (val);
341	else if (!strcmp (var, "router-priority"))
342	node->routerprio = atoi (val);
343	else if (!strcmp (var, "connect"))
344	{
345	if (!strcmp (val, "ondemand"))
346	node->connectmode = conf_node::C_ONDEMAND;
347	else if (!strcmp (val, "never"))
348	node->connectmode = conf_node::C_NEVER;
349	else if (!strcmp (val, "always"))
350	node->connectmode = conf_node::C_ALWAYS;
351	else if (!strcmp (val, "disabled"))
352	node->connectmode = conf_node::C_DISABLED;
353	else
354	slog (L_WARN,
355	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
356	var, fname, lineno);
357	}
358	else if (!strcmp (var, "inherit-tos"))
359	{
360	parse_bool (node->inherit_tos, "inherit-tos", true, false);
361	}
362	else if (!strcmp (var, "compress"))
363	{
364	parse_bool (node->compress, "compress", true, false);
365	}
366	// all these bool options really really cost a lot of executable size!
367	else if (!strcmp (var, "enable-tcp"))
368	{
369	#if ENABLE_TCP
370	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
371	#endif
372	}
373	else if (!strcmp (var, "enable-icmp"))
374	{
375	#if ENABLE_ICMP
376	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
377	#endif
378	}
379	else if (!strcmp (var, "enable-dns"))
380	{
381	#if ENABLE_DNS
382	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
383	#endif
384	}
385	else if (!strcmp (var, "enable-udp"))
386	{
387	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
388	}
389	else if (!strcmp (var, "enable-rawip"))
390	{;
391	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
392	}
393
394	// unknown or misplaced
395	else
396	slog (L_WARN,
397	_("unknown or misplaced variable `%s', at '%s' line %d"),
398	var, fname, lineno);
399	}	564	}
400		565
401	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
402	}	569	}
403	else	570	else
404	{	571	{
405	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));
406	exit (EXIT_FAILURE);	573	exit (EXIT_FAILURE);
407	}	574	}
408		575
409	free (fname);	576	free (fname);
410		577
411	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
412		579
413	f = fopen (fname, "r");	580	f = fopen (fname, "r");
414	if (f)	581	if (f)
415	{	582	{
416	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
417		584
418	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
419	{	586	{
420	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
421	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));
422	exit (EXIT_FAILURE);	589	exit (EXIT_FAILURE);
423	}	590	}
424		591
425	require (RSA_blinding_on (rsa_key, 0));	592	require (RSA_blinding_on (conf.rsa_key, 0));
426		593
427	fclose (f);	594	fclose (f);
428	}	595	}
429	else	596	else
430	{	597	{
…		…
433	if (need_keys)	600	if (need_keys)
434	exit (EXIT_FAILURE);	601	exit (EXIT_FAILURE);
435	}	602	}
436		603
437	if (need_keys && ::thisnode	604	if (need_keys && ::thisnode
438	&& rsa_key && thisnode && thisnode->rsa_key)	605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
439	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
440	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
441	{	608	{
442	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);
443	exit (EXIT_FAILURE);	610	exit (EXIT_FAILURE);
444	}	611	}
445		612
446	free (fname);	613	free (fname);
447	}
448		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
449	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
450	{	621	{
451	char *fname;	622	char *fname;
452		623
453	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
454		625
…		…
458	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
459	free (rname);	630	free (rname);
460	}	631	}
461		632
462	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	);
463	}	654	}
464		655
465	void	656	void
466	configuration::print ()	657	configuration::print ()
467	{	658	{
…		…
474	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
475	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
476	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);
477	printf ("\n");	668	printf ("\n");
478		669
479	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
480	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
481		672
482	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
483	(*i)->print ();	674	(*i)->print ();
484		675
485	printf ("\n");	676	printf ("\n");
486	}	677	}
487		678
488	configuration::configuration ()	679	configuration::configuration ()
489	{	680	{
490	asprintf (&confbase, "%s/vpe", CONFDIR);	681	asprintf (&confbase, "%s/gvpe", CONFDIR);
491		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 1.26 by pcg, Wed May 12 13:32:13 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 1.26 by pcg, Wed May 12 13:32:13 2004 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC