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

Comparing gvpe/src/conf.C (file contents):
Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	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
10	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
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	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
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	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
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	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.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
37	#include <netinet/icmp.h>
38		45
39	#include <openssl/err.h>	46	#include <openssl/err.h>
40	#include <openssl/pem.h>	47	#include <openssl/pem.h>
41	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
42	#include <openssl/rand.h>	49	#include <openssl/rand.h>
43		50	#include <openssl/bn.h>
44	#include "gettext.h"
45		51
46	#include "conf.h"	52	#include "conf.h"
47	#include "slog.h"	53	#include "slog.h"
48	#include "util.h"	54	#include "util.h"
49		55
50	char *confbase;	56	char *confbase;
51	char *thisnode;	57	char *thisnode;
52	char *identname;	58	char *identname;
53	char *pidfilename;
54		59
55	struct configuration conf;	60	struct configuration conf;
56		61
		62	u8
57	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
58	{	64	{
59	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
60	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
61	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
62	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
63		70
64	return 0;	71	return 0;
65	}	72	}
66		73
		74	const char *
67	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
68	{	76	{
69	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
70	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
71	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
72	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
73		82
74	return "<unknown>";	83	return "<unknown>";
75	}	84	}
76		85
77	void	86	static bool
78	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
79	{	88	{
80	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 (); )
81	id,	90	if ((i)[0] == '' && !(*i)[1])
82	id >> 8, id & 0xff,	91	return true;
83	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
84	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
85	connectmode == C_NEVER ? "never" :	94
86	connectmode == C_ALWAYS ? "always" : "",	95	return false;
87	nodename,	96	}
88	hostname ? hostname : "",	97
89	hostname ? ":" : "",	98	bool
90	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
91	);	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;
92	}	108	}
93		109
94	conf_node::~conf_node ()	110	conf_node::~conf_node ()
95	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
96	if (rsa_key)	115	if (rsa_key)
97	RSA_free (rsa_key);	116	RSA_free (rsa_key);
98		117
99	free (nodename);	118	free (nodename);
100	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
101	}	126	}
102		127
		128	void
103	void configuration::init ()	129	configuration::init ()
104	{	130	{
105	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
106		132
		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;
		139	#if ENABLE_ICMP
111	icmp_type = ICMP_ECHOREPLY;	140	icmp_type = ICMP_ECHOREPLY;
		141	#endif
112		142
113	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT;	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;
118	}	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 ("");
119		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_case_preserving = true;
		157	dns_forw_host = strdup ("127.0.0.1");
		158	dns_forw_port = 53;
		159	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		160	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		161	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		162	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		163	#endif
		164
		165	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		166	}
		167
		168	void
120	void configuration::cleanup()	169	configuration::cleanup ()
121	{	170	{
122	if (rsa_key)	171	if (rsa_key)
123	RSA_free (rsa_key);	172	RSA_free (rsa_key);
124		173
125	rsa_key = 0;	174	rsa_key = 0;
126		175
127	free (ifname); ifname = 0;	176	free (pidfilename); pidfilename = 0;
		177	free (ifname); ifname = 0;
128	#if ENABLE_HTTP_PROXY	178	#if ENABLE_HTTP_PROXY
129	free (proxy_host); proxy_host = 0;	179	free (proxy_host); proxy_host = 0;
130	free (proxy_auth); proxy_auth = 0;	180	free (proxy_auth); proxy_auth = 0;
131	#endif	181	#endif
		182	#if ENABLE_DNS
		183	free (dns_forw_host); dns_forw_host = 0;
		184	#endif
		185	free (script_if_up); script_if_up = 0;
		186	free (script_node_up); script_node_up = 0;
		187	free (script_node_change); script_node_change = 0;
		188	free (script_node_down); script_node_down = 0;
132	}	189	}
133		190
134	void	191	void
135	configuration::clear_config ()	192	configuration::clear ()
136	{	193	{
137	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	194	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
138	delete *i;	195	delete *i;
139		196
140	nodes.clear ();	197	nodes.clear ();
141		198
142	cleanup ();	199	cleanup ();
143	init ();	200	init ();
144	}	201	}
145		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
146	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
147	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
148	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
149	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
150	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
151	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
152	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
153	else \	216	else \
154	slog (L_WARN, \	217	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
155	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	218	} while (0)
156	name, var, fname, lineno);
157		219
158	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
159	{	222	{
		223	{
		224	char *end = line + strlen (line);
		225
		226	while (*end < ' ' && end >= line)
		227	end--;
		228
		229	*++end = 0;
		230	}
		231
		232	char *tok = line;
		233	const char *var = strtok (tok, "\t =");
		234	tok = 0;
		235
		236	if (!var \|\| !var[0])
		237	return 0; /* no tokens on this line */
		238
		239	if (var[0] == '#')
		240	return 0; /* comment: ignore */
		241
		242	char *val = strtok (NULL, "\t\n\r =");
		243
		244	if (!val \|\| val[0] == '#')
		245	return _("no value given for variable. (ignored)");
		246
		247	else if (!strcmp (var, "on"))
		248	{
		249	if (!::thisnode
		250	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		251	\|\| !strcmp (val, ::thisnode))
		252	return parse_line (strtok (NULL, "\n\r"));
		253	}
		254
		255	else if (!strcmp (var, "include"))
		256	{
		257	char *fname = conf.config_filename (val);
		258	parse_file (fname);
		259	free (fname);
		260	}
		261
		262	// truly global
		263	else if (!strcmp (var, "loglevel"))
		264	{
		265	loglevel l = string_to_loglevel (val);
		266
		267	if (l == L_NONE)
		268	return _("unknown loglevel. (skipping)");
		269	}
		270	else if (!strcmp (var, "ip-proto"))
		271	conf.ip_proto = atoi (val);
		272	else if (!strcmp (var, "icmp-type"))
		273	{
		274	#if ENABLE_ICMP
		275	conf.icmp_type = atoi (val);
		276	#endif
		277	}
		278
		279	// per config
		280	else if (!strcmp (var, "node"))
		281	{
		282	parse_argv ();
		283
		284	conf.default_node.id++;
		285	node = new conf_node (conf.default_node);
		286	conf.nodes.push_back (node);
		287	node->nodename = strdup (val);
		288
		289	{
160	char *fname;	290	char *fname;
161	FILE *f;	291	FILE *f;
162		292
163	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
164		294
165	asprintf (&fname, "%s/vped.conf", confbase);
166	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
167		299
168	if (f)	300	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		301	{
		302	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		303	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	require (RSA_blinding_on (node->rsa_key, 0));
		308
		309	fclose (f);
		310	}
		311	else
		312	{
		313	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		314
		315	if (need_keys)
		316	exit (EXIT_FAILURE);
		317	}
		318
		319	free (fname);
		320	}
		321
		322	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		323	conf.thisnode = node;
169	{	324	}
		325	else if (!strcmp (var, "private-key"))
		326	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		327	else if (!strcmp (var, "ifpersist"))
		328	parse_bool (conf.ifpersist, "ifpersist", true, false);
		329	else if (!strcmp (var, "ifname"))
		330	free (conf.ifname), conf.ifname = strdup (val);
		331	else if (!strcmp (var, "rekey"))
		332	conf.rekey = atoi (val);
		333	else if (!strcmp (var, "keepalive"))
		334	conf.keepalive = atoi (val);
		335	else if (!strcmp (var, "mtu"))
		336	conf.mtu = atoi (val);
		337	else if (!strcmp (var, "nfmark"))
		338	conf.nfmark = atoi (val);
		339	else if (!strcmp (var, "if-up"))
		340	free (conf.script_if_up), conf.script_if_up = strdup (val);
		341	else if (!strcmp (var, "node-up"))
		342	free (conf.script_node_up), conf.script_node_up = strdup (val);
		343	else if (!strcmp (var, "node-change"))
		344	free (conf.script_node_change), conf.script_node_change = strdup (val);
		345	else if (!strcmp (var, "node-down"))
		346	free (conf.script_node_down), conf.script_node_down = strdup (val);
		347	else if (!strcmp (var, "pid-file"))
		348	free (conf.pidfilename), conf.pidfilename = strdup (val);
		349	else if (!strcmp (var, "dns-forw-host"))
		350	{
		351	#if ENABLE_DNS
		352	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-forw-port"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_forw_port = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-timeout-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_timeout_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-send-interval"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_send_interval = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "dns-overlap-factor"))
		374	{
		375	#if ENABLE_DNS
		376	conf.dns_overlap_factor = atof (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-max-outstanding"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_max_outstanding = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-case-preserving"))
		386	{
		387	#if ENABLE_DNS
		388	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		389	#endif
		390	}
		391	else if (!strcmp (var, "http-proxy-host"))
		392	{
		393	#if ENABLE_HTTP_PROXY
		394	free (conf.proxy_host), conf.proxy_host = strdup (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "http-proxy-port"))
		398	{
		399	#if ENABLE_HTTP_PROXY
		400	conf.proxy_port = atoi (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "http-proxy-auth"))
		404	{
		405	#if ENABLE_HTTP_PROXY
		406	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		407	#endif
		408	}
		409
		410	/* node-specific, non-defaultable */
		411	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		412	free (node->hostname), node->hostname = strdup (val);
		413
		414	/* node-specific, defaultable */
		415	else if (!strcmp (var, "udp-port"))
		416	node->udp_port = atoi (val);
		417	else if (!strcmp (var, "tcp-port"))
		418	node->tcp_port = atoi (val);
		419	else if (!strcmp (var, "dns-hostname"))
		420	{
		421	#if ENABLE_DNS
		422	free (node->dns_hostname), node->dns_hostname = strdup (val);
		423	#endif
		424	}
		425	else if (!strcmp (var, "dns-port"))
		426	{
		427	#if ENABLE_DNS
		428	node->dns_port = atoi (val);
		429	#endif
		430	}
		431	else if (!strcmp (var, "dns-domain"))
		432	{
		433	#if ENABLE_DNS
		434	free (node->domain), node->domain = strdup (val);
		435	#endif
		436	}
		437	else if (!strcmp (var, "if-up-data"))
		438	free (node->if_up_data), node->if_up_data = strdup (val);
		439	else if (!strcmp (var, "router-priority"))
		440	node->routerprio = atoi (val);
		441	else if (!strcmp (var, "max-retry"))
		442	node->max_retry = atoi (val);
		443	else if (!strcmp (var, "connect"))
		444	{
		445	if (!strcmp (val, "ondemand"))
		446	node->connectmode = conf_node::C_ONDEMAND;
		447	else if (!strcmp (val, "never"))
		448	node->connectmode = conf_node::C_NEVER;
		449	else if (!strcmp (val, "always"))
		450	node->connectmode = conf_node::C_ALWAYS;
		451	else if (!strcmp (val, "disabled"))
		452	node->connectmode = conf_node::C_DISABLED;
		453	else
		454	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		455	}
		456	else if (!strcmp (var, "inherit-tos"))
		457	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		458	else if (!strcmp (var, "compress"))
		459	parse_bool (node->compress, "compress", true, false);
		460	// all these bool options really really cost a lot of executable size!
		461	else if (!strcmp (var, "enable-tcp"))
		462	{
		463	#if ENABLE_TCP
		464	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		465	#endif
		466	}
		467	else if (!strcmp (var, "enable-icmp"))
		468	{
		469	#if ENABLE_ICMP
		470	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		471	#endif
		472	}
		473	else if (!strcmp (var, "enable-dns"))
		474	{
		475	#if ENABLE_DNS
		476	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		477	#endif
		478	}
		479	else if (!strcmp (var, "enable-udp"))
		480	{
		481	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		482	}
		483	else if (!strcmp (var, "enable-rawip"))
		484	{
		485	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		486	}
		487	else if (!strcmp (var, "allow-direct"))
		488	node->allow_direct.push_back (strdup (val));
		489	else if (!strcmp (var, "deny-direct"))
		490	node->deny_direct.push_back (strdup (val));
		491	else if (!strcmp (var, "max-ttl"))
		492	node->max_ttl = atof (val);
		493	else if (!strcmp (var, "max-queue"))
		494	node->max_queue = atoi (val);
		495
		496	// unknown or misplaced
		497	else
		498	return _("unknown configuration directive - ignored");
		499
		500	return 0;
		501	}
		502
		503	void
		504	conf_node::finalise ()
		505	{
		506	if (max_queue < 1)
		507	{
		508	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		509	max_queue = 1;
		510	}
		511
		512	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		513	{
		514	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		515	connectmode = C_ALWAYS;
		516	}
		517	}
		518
		519	void
		520	configuration_parser::parse_argv ()
		521	{
		522	for (int i = 0; i < argc; ++i)
		523	{
		524	char *v = argv [i];
		525
		526	if (!*v)
		527	continue;
		528
		529	char *enode = v;
		530
		531	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		532	enode++;
		533
		534	if (*enode != '.')
		535	enode = 0;
		536
		537	char *wnode = node == &conf.default_node
		538	? 0
		539	: node->nodename;
		540
		541	if ((!wnode && !enode)
		542	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		543	{
		544	const char *warn = parse_line (enode ? enode + 1 : v);
		545
		546	if (warn)
		547	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		548
		549	*v = 0;
		550	}
		551	}
		552	}
		553
		554	void
		555	configuration_parser::parse_file (const char *fname)
		556	{
		557	if (FILE *f = fopen (fname, "r"))
		558	{
170	char line[16384];	559	char line [2048];
171	int lineno = 0;	560	int lineno = 0;
172	char var, val;	561	node = &conf.default_node;
173	conf_node *node = &default_node;
174		562
175	while (fgets (line, sizeof (line), f))	563	while (fgets (line, sizeof (line), f))
176	{	564	{
177	lineno++;	565	lineno++;
178		566
179	{	567	const char *warn = parse_line (line);
180	char *end = line + strlen (line);
181		568
182	while (*end < ' ' && end >= line)	569	if (warn)
183	end--;	570	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
184
185	*++end = 0;
186	}
187
188	char *tok = line;
189
190	retry:
191	var = strtok (tok, "\t =");
192	tok = 0;
193
194	if (!var \|\| !var[0])
195	continue; /* no tokens on this line */
196
197	if (var[0] == '#')
198	continue; /* comment: ignore */
199
200	val = strtok (NULL, "\t\n\r =");
201
202	if (!val \|\| val[0] == '#')
203	{
204	slog (L_WARN,
205	_("no value for variable `%s', at '%s' line %d"),
206	var, fname, lineno);
207	break;
208	}
209
210	if (!strcmp (var, "on"))
211	{
212	if (!::thisnode
213	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
214	\|\| !strcmp (val, ::thisnode))
215	goto retry;
216
217	continue;
218	}
219
220	// truly global
221	if (!strcmp (var, "loglevel"))
222	{
223	loglevel l = string_to_loglevel (val);
224
225	if (l != L_NONE)
226	llevel = l;
227	else
228	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
229	}
230	else if (!strcmp (var, "ip-proto"))
231	ip_proto = atoi (val);
232	else if (!strcmp (var, "icmp-type"))
233	icmp_type = atoi (val);
234
235	// per config
236	else if (!strcmp (var, "node"))
237	{
238	default_node.id++;
239
240	node = new conf_node (default_node);
241
242	nodes.push_back (node);
243
244	node->nodename = strdup (val);
245
246	{
247	char *fname;
248	FILE *f;
249
250	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
251
252	f = fopen (fname, "r");
253	if (f)
254	{
255	node->rsa_key = RSA_new ();
256
257	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
258	{
259	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
260	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
261	exit (1);
262	}
263
264	RSA_blinding_on (node->rsa_key, 0);
265
266	fclose (f);
267	}
268	else
269	{
270	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
271
272	if (need_keys)
273	exit (1);
274	}
275
276	free (fname);
277	}
278
279	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
280	thisnode = node;
281	}
282	else if (!strcmp (var, "private-key"))
283	prikeyfile = strdup (val);
284	else if (!strcmp (var, "ifpersist"))
285	{
286	parse_bool (ifpersist, "ifpersist", true, false);
287	}
288	else if (!strcmp (var, "ifname"))
289	ifname = strdup (val);
290	else if (!strcmp (var, "rekey"))
291	rekey = atoi (val);
292	else if (!strcmp (var, "keepalive"))
293	keepalive = atoi (val);
294	else if (!strcmp (var, "mtu"))
295	mtu = atoi (val);
296	else if (!strcmp (var, "if-up"))
297	script_if_up = strdup (val);
298	else if (!strcmp (var, "node-up"))
299	script_node_up = strdup (val);
300	else if (!strcmp (var, "node-down"))
301	script_node_down = strdup (val);
302	#if ENABLE_HTTP_PROXY
303	else if (!strcmp (var, "http-proxy-host"))
304	proxy_host = strdup (val);
305	else if (!strcmp (var, "http-proxy-port"))
306	proxy_port = atoi (val);
307	else if (!strcmp (var, "http-proxy-auth"))
308	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
309	#endif
310
311	/* node-specific, non-defaultable */
312	else if (node != &default_node && !strcmp (var, "hostname"))
313	{
314	free (node->hostname);
315	node->hostname = strdup (val);
316	}
317
318	/* node-specific, defaultable */
319	else if (!strcmp (var, "udp-port"))
320	node->udp_port = atoi (val);
321	else if (!strcmp (var, "tcp-port"))
322	node->tcp_port = atoi (val);
323	else if (!strcmp (var, "router-priority"))
324	node->routerprio = atoi (val);
325	else if (!strcmp (var, "connect"))
326	{
327	if (!strcmp (val, "ondemand"))
328	node->connectmode = conf_node::C_ONDEMAND;
329	else if (!strcmp (val, "never"))
330	node->connectmode = conf_node::C_NEVER;
331	else if (!strcmp (val, "always"))
332	node->connectmode = conf_node::C_ALWAYS;
333	else if (!strcmp (val, "disabled"))
334	node->connectmode = conf_node::C_DISABLED;
335	else
336	slog (L_WARN,
337	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
338	var, fname, lineno);
339	}
340	else if (!strcmp (var, "inherit-tos"))
341	{
342	parse_bool (node->inherit_tos, "inherit-tos", true, false);
343	}
344	else if (!strcmp (var, "compress"))
345	{
346	parse_bool (node->compress, "compress", true, false);
347	}
348	// all these bool options really really cost a lot of executable size!
349	else if (!strcmp (var, "enable-tcp"))
350	{
351	#if ENABLE_TCP
352	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
353	#endif
354	}
355	else if (!strcmp (var, "enable-icmp"))
356	{
357	#if ENABLE_ICMP
358	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
359	#endif
360	}
361	else if (!strcmp (var, "enable-udp"))
362	{
363	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
364	}
365	else if (!strcmp (var, "enable-rawip"))
366	{
367	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
368	}
369
370	// unknown or misplaced
371	else
372	slog (L_WARN,
373	_("unknown or misplaced variable `%s', at '%s' line %d"),
374	var, fname, lineno);
375	}	571	}
376		572
377	fclose (f);	573	fclose (f);
		574
		575	parse_argv ();
378	}	576	}
379	else	577	else
380	{	578	{
381	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	579	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
382	exit (1);	580	exit (EXIT_FAILURE);
383	}	581	}
		582	}
384		583
		584	configuration_parser::configuration_parser (configuration &conf,
		585	bool need_keys,
		586	int argc,
		587	char **argv)
		588	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		589	{
		590	char *fname;
		591
		592	conf.clear ();
		593
		594	asprintf (&fname, "%s/gvpe.conf", confbase);
		595	parse_file (fname);
385	free (fname);	596	free (fname);
386		597
387	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
388		599
389	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
390	if (f)
391	{	601	{
392	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
393		603
394	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
395	{	605	{
396	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
397	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	607	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
398	exit (1);	608	exit (EXIT_FAILURE);
399	}	609	}
400		610
401	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
402		612
403	fclose (f);	613	fclose (f);
404	}	614	}
405	else	615	else
406	{	616	{
407	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	617	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
408		618
409	if (need_keys)	619	if (need_keys)
410	exit (1);	620	exit (EXIT_FAILURE);
411	}	621	}
412		622
413	free (fname);	623	free (fname);
414	}
415		624
		625	if (need_keys && ::thisnode
		626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		627	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		629	{
		630	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		631	exit (EXIT_FAILURE);
		632	}
		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
416	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
417	{	640	{
418	char *fname;	641	char *fname;
419		642
420	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
421		644
…		…
425	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
426	free (rname);	649	free (rname);
427	}	650	}
428		651
429	return fname;	652	return fname;
		653	}
		654
		655	void
		656	conf_node::print ()
		657	{
		658	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		659	id,
		660	id >> 8, id & 0xff,
		661	compress ? 'Y' : 'N',
		662	connectmode == C_ONDEMAND ? "ondemand"
		663	: connectmode == C_NEVER ? "never"
		664	: connectmode == C_ALWAYS ? "always"
		665	: connectmode == C_DISABLED ? "disabled"
		666	: "",
		667	nodename,
		668	protocols,
		669	hostname ? hostname : "",
		670	hostname ? ":" : "",
		671	hostname ? udp_port : 0
		672	);
430	}	673	}
431		674
432	void	675	void
433	configuration::print ()	676	configuration::print ()
434	{	677	{
…		…
438	printf (_("MTU: %d\n"), mtu);	681	printf (_("MTU: %d\n"), mtu);
439	printf (_("rekeying interval: %d\n"), rekey);	682	printf (_("rekeying interval: %d\n"), rekey);
440	printf (_("keepalive interval: %d\n"), keepalive);	683	printf (_("keepalive interval: %d\n"), keepalive);
441	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
442	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
443	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	686	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
444	printf ("\n");	687	printf ("\n");
445		688
446	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
447	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
448		691
449	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
450	(*i)->print ();	693	(*i)->print ();
451		694
452	printf ("\n");	695	printf ("\n");
453	}	696	}
454		697
455	configuration::configuration ()	698	configuration::configuration ()
456	{	699	{
		700	asprintf (&confbase, "%s/gvpe", CONFDIR);
		701
457	init ();	702	init ();
458	}	703	}
459		704
460	configuration::~configuration ()	705	configuration::~configuration ()
461	{	706	{
462	cleanup ();	707	cleanup ();
463	}	708	}
464		709
465

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing gvpe/src/conf.C (file contents): Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs. Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC