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

Comparing gvpe/src/conf.C (file contents):
Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 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 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>
33		45
34	#include <openssl/err.h>	46	#include <openssl/err.h>
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		50	#include <openssl/bn.h>
39	#include "gettext.h"
40		51
41	#include "conf.h"	52	#include "conf.h"
42	#include "slog.h"	53	#include "slog.h"
43	#include "util.h"	54	#include "util.h"
44		55
45	char *confbase;	56	char *confbase;
46	char *thisnode;	57	char *thisnode;
47	char *identname;	58	char *identname;
48	char *pidfilename;
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;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58		70
59	return 0;	71	return 0;
60	}	72	}
61		73
		74	const char *
62	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
63	{	76	{
64	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
65	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
66	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
67	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
68		82
69	return "<unknown>";	83	return "<unknown>";
70	}	84	}
71		85
72	void	86	static bool
73	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
74	{	88	{
75	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 (); )
76	id,	90	if ((i)[0] == '' && !(*i)[1])
77	id >> 8, id & 0xff,	91	return true;
78	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
79	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
80	connectmode == C_NEVER ? "never" :	94
81	connectmode == C_ALWAYS ? "always" : "",	95	return false;
82	nodename,	96	}
83	hostname ? hostname : "",	97
84	hostname ? ":" : "",	98	bool
85	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
86	);	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;
87	}	108	}
88		109
89	conf_node::~conf_node ()	110	conf_node::~conf_node ()
90	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
91	if (rsa_key)	115	if (rsa_key)
92	RSA_free (rsa_key);	116	RSA_free (rsa_key);
93		117
94	free (nodename);	118	free (nodename);
95	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
96	}	126	}
97		127
		128	void
98	void configuration::init ()	129	configuration::init ()
99	{	130	{
100	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
101		132
102	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
103	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
104	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
105	llevel = L_INFO;	137	llevel = L_INFO;
106	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
107	#if ENABLE_ICMP	139	#if ENABLE_ICMP
108	icmp_type = ICMP_ECHOREPLY;	140	icmp_type = ICMP_ECHOREPLY;
109	#endif	141	#endif
110		142
111	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
112	default_node.tcp_port = DEFAULT_UDPPORT;	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
113	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
114	default_node.compress = true;	146	default_node.compress = true;
115	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
116	}	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 ("");
117		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
		164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		165	}
		166
		167	void
118	void configuration::cleanup()	168	configuration::cleanup ()
119	{	169	{
120	if (rsa_key)	170	if (rsa_key)
121	RSA_free (rsa_key);	171	RSA_free (rsa_key);
122		172
123	rsa_key = 0;	173	rsa_key = 0;
124		174
125	free (ifname); ifname = 0;	175	free (pidfilename); pidfilename = 0;
		176	free (ifname); ifname = 0;
126	#if ENABLE_HTTP_PROXY	177	#if ENABLE_HTTP_PROXY
127	free (proxy_host); proxy_host = 0;	178	free (proxy_host); proxy_host = 0;
128	free (proxy_auth); proxy_auth = 0;	179	free (proxy_auth); proxy_auth = 0;
129	#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;
130	}	188	}
131		189
132	void	190	void
133	configuration::clear_config ()	191	configuration::clear ()
134	{	192	{
135	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)
136	delete *i;	194	delete *i;
137		195
138	nodes.clear ();	196	nodes.clear ();
139		197
140	cleanup ();	198	cleanup ();
141	init ();	199	init ();
142	}	200	}
143		201
144	#define parse_bool(target,name,trueval,falseval) \	202	#define parse_bool(target,name,trueval,falseval) do { \
145	if (!strcmp (val, "yes")) target = trueval; \	203	if (!strcmp (val, "yes")) target = trueval; \
146	else if (!strcmp (val, "no")) target = falseval; \	204	else if (!strcmp (val, "no")) target = falseval; \
147	else if (!strcmp (val, "true")) target = trueval; \	205	else if (!strcmp (val, "true")) target = trueval; \
148	else if (!strcmp (val, "false")) target = falseval; \	206	else if (!strcmp (val, "false")) target = falseval; \
149	else if (!strcmp (val, "on")) target = trueval; \	207	else if (!strcmp (val, "on")) target = trueval; \
150	else if (!strcmp (val, "off")) target = falseval; \	208	else if (!strcmp (val, "off")) target = falseval; \
151	else \	209	else \
152	slog (L_WARN, \	210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
153	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	211	} while (0)
154	name, var, fname, lineno);
155		212
156	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)
157	{	541	{
158	char *fname;	542	char *fname;
159	FILE *f;	543	FILE *f;
160		544
161	clear_config ();	545	conf.clear ();
162		546
163	asprintf (&fname, "%s/vped.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
164	f = fopen (fname, "r");	548	f = fopen (fname, "r");
165		549
166	if (f)	550	if (f)
167	{	551	{
168	char line[16384];	552	char line[16384];
169	int lineno = 0;	553	int lineno = 0;
170	char var, val;	554	node = &conf.default_node;
171	conf_node *node = &default_node;
172		555
173	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
174	{	557	{
175	lineno++;	558	lineno++;
176		559
177	{	560	const char *warn = parse_line (line);
178	char *end = line + strlen (line);
179		561
180	while (*end < ' ' && end >= line)	562	if (warn)
181	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
182
183	*++end = 0;
184	}
185
186	char *tok = line;
187
188	retry:
189	var = strtok (tok, "\t =");
190	tok = 0;
191
192	if (!var \|\| !var[0])
193	continue; /* no tokens on this line */
194
195	if (var[0] == '#')
196	continue; /* comment: ignore */
197
198	val = strtok (NULL, "\t\n\r =");
199
200	if (!val \|\| val[0] == '#')
201	{
202	slog (L_WARN,
203	_("no value for variable `%s', at '%s' line %d"),
204	var, fname, lineno);
205	break;
206	}
207
208	if (!strcmp (var, "on"))
209	{
210	if (!::thisnode
211	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
212	\|\| !strcmp (val, ::thisnode))
213	goto retry;
214
215	continue;
216	}
217
218	// truly global
219	if (!strcmp (var, "loglevel"))
220	{
221	loglevel l = string_to_loglevel (val);
222
223	if (l != L_NONE)
224	llevel = l;
225	else
226	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
227	}
228	else if (!strcmp (var, "ip-proto"))
229	ip_proto = atoi (val);
230	#if ENABLE_ICMP
231	//TODO: error message
232	else if (!strcmp (var, "icmp-type"))
233	icmp_type = atoi (val);
234	#endif
235
236	// per config
237	else if (!strcmp (var, "node"))
238	{
239	default_node.id++;
240
241	node = new conf_node (default_node);
242
243	nodes.push_back (node);
244
245	node->nodename = strdup (val);
246
247	{
248	char *fname;
249	FILE *f;
250
251	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
252
253	f = fopen (fname, "r");
254	if (f)
255	{
256	node->rsa_key = RSA_new ();
257
258	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
259	{
260	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
261	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
262	exit (1);
263	}
264
265	RSA_blinding_on (node->rsa_key, 0);
266
267	fclose (f);
268	}
269	else
270	{
271	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
272
273	if (need_keys)
274	exit (1);
275	}
276
277	free (fname);
278	}
279
280	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
281	thisnode = node;
282	}
283	else if (!strcmp (var, "private-key"))
284	prikeyfile = strdup (val);
285	else if (!strcmp (var, "ifpersist"))
286	{
287	parse_bool (ifpersist, "ifpersist", true, false);
288	}
289	else if (!strcmp (var, "ifname"))
290	ifname = strdup (val);
291	else if (!strcmp (var, "rekey"))
292	rekey = atoi (val);
293	else if (!strcmp (var, "keepalive"))
294	keepalive = atoi (val);
295	else if (!strcmp (var, "mtu"))
296	mtu = atoi (val);
297	else if (!strcmp (var, "if-up"))
298	script_if_up = strdup (val);
299	else if (!strcmp (var, "node-up"))
300	script_node_up = strdup (val);
301	else if (!strcmp (var, "node-down"))
302	script_node_down = strdup (val);
303	#if ENABLE_HTTP_PROXY
304	else if (!strcmp (var, "http-proxy-host"))
305	proxy_host = strdup (val);
306	else if (!strcmp (var, "http-proxy-port"))
307	proxy_port = atoi (val);
308	else if (!strcmp (var, "http-proxy-auth"))
309	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
310	#endif
311
312	/* node-specific, non-defaultable */
313	else if (node != &default_node && !strcmp (var, "hostname"))
314	{
315	free (node->hostname);
316	node->hostname = strdup (val);
317	}
318
319	/* node-specific, defaultable */
320	else if (!strcmp (var, "udp-port"))
321	node->udp_port = atoi (val);
322	else if (!strcmp (var, "tcp-port"))
323	node->tcp_port = atoi (val);
324	else if (!strcmp (var, "router-priority"))
325	node->routerprio = atoi (val);
326	else if (!strcmp (var, "connect"))
327	{
328	if (!strcmp (val, "ondemand"))
329	node->connectmode = conf_node::C_ONDEMAND;
330	else if (!strcmp (val, "never"))
331	node->connectmode = conf_node::C_NEVER;
332	else if (!strcmp (val, "always"))
333	node->connectmode = conf_node::C_ALWAYS;
334	else if (!strcmp (val, "disabled"))
335	node->connectmode = conf_node::C_DISABLED;
336	else
337	slog (L_WARN,
338	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
339	var, fname, lineno);
340	}
341	else if (!strcmp (var, "inherit-tos"))
342	{
343	parse_bool (node->inherit_tos, "inherit-tos", true, false);
344	}
345	else if (!strcmp (var, "compress"))
346	{
347	parse_bool (node->compress, "compress", true, false);
348	}
349	// all these bool options really really cost a lot of executable size!
350	else if (!strcmp (var, "enable-tcp"))
351	{
352	#if ENABLE_TCP
353	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
354	#endif
355	}
356	else if (!strcmp (var, "enable-icmp"))
357	{
358	#if ENABLE_ICMP
359	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
360	#endif
361	}
362	else if (!strcmp (var, "enable-udp"))
363	{
364	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
365	}
366	else if (!strcmp (var, "enable-rawip"))
367	{
368	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
369	}
370
371	// unknown or misplaced
372	else
373	slog (L_WARN,
374	_("unknown or misplaced variable `%s', at '%s' line %d"),
375	var, fname, lineno);
376	}	564	}
377		565
378	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
379	}	569	}
380	else	570	else
381	{	571	{
382	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));
383	exit (1);	573	exit (EXIT_FAILURE);
384	}	574	}
385		575
386	free (fname);	576	free (fname);
387		577
388	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
389		579
390	f = fopen (fname, "r");	580	f = fopen (fname, "r");
391	if (f)	581	if (f)
392	{	582	{
393	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
394		584
395	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
396	{	586	{
397	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
398	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));
399	exit (1);	589	exit (EXIT_FAILURE);
400	}	590	}
401		591
402	RSA_blinding_on (rsa_key, 0);	592	require (RSA_blinding_on (conf.rsa_key, 0));
403		593
404	fclose (f);	594	fclose (f);
405	}	595	}
406	else	596	else
407	{	597	{
408	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	598	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
409		599
410	if (need_keys)	600	if (need_keys)
411	exit (1);	601	exit (EXIT_FAILURE);
		602	}
		603
		604	if (need_keys && ::thisnode
		605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		606	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		608	{
		609	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		610	exit (EXIT_FAILURE);
412	}	611	}
413		612
414	free (fname);	613	free (fname);
415	}
416		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
417	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
418	{	621	{
419	char *fname;	622	char *fname;
420		623
421	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
422		625
…		…
426	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
427	free (rname);	630	free (rname);
428	}	631	}
429		632
430	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	);
431	}	654	}
432		655
433	void	656	void
434	configuration::print ()	657	configuration::print ()
435	{	658	{
…		…
442	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
443	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
444	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);
445	printf ("\n");	668	printf ("\n");
446		669
447	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
448	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
449		672
450	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
451	(*i)->print ();	674	(*i)->print ();
452		675
453	printf ("\n");	676	printf ("\n");
454	}	677	}
455		678
456	configuration::configuration ()	679	configuration::configuration ()
457	{	680	{
		681	asprintf (&confbase, "%s/gvpe", CONFDIR);
		682
458	init ();	683	init ();
459	}	684	}
460		685
461	configuration::~configuration ()	686	configuration::~configuration ()
462	{	687	{
463	cleanup ();	688	cleanup ();
464	}	689	}
465		690
466

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Comparing gvpe/src/conf.C (file contents): Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 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 1.19 by pcg, Thu Oct 16 20:35:14 2003 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC