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

Comparing gvpe/src/conf.C (file contents):
Revision 1.12 by pcg, Mon Apr 7 01:12:56 2003 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 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		45
38	#include <openssl/err.h>	46	#include <openssl/err.h>
39	#include <openssl/pem.h>	47	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	49	#include <openssl/rand.h>
42		50	#include <openssl/bn.h>
43	#include "gettext.h"
44		51
45	#include "conf.h"	52	#include "conf.h"
46	#include "slog.h"	53	#include "slog.h"
47	#include "util.h"	54	#include "util.h"
48		55
49	char *confbase;	56	char *confbase;
50	char *thisnode;	57	char *thisnode;
51	char *identname;	58	char *identname;
52	char *pidfilename;
53		59
54	struct configuration conf;	60	struct configuration conf;
55		61
		62	u8
56	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
57	{	64	{
		65	#if 1//D2
		66	if (protset & PROT_IPv42 ) return PROT_IPv42;
		67	#endif
58	if (protset & PROT_IPv4 ) return PROT_IPv4;	68	if (protset & PROT_IPv4 ) return PROT_IPv4;
		69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59	if (protset & PROT_UDPv4) return PROT_UDPv4;	70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60	if (protset & PROT_TCPv4) return PROT_TCPv4;	71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		72	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		73
62	return 0;	74	return 0;
63	}	75	}
64		76
		77	const char *
65	const char *strprotocol (u8 protocol)	78	strprotocol (u8 protocol)
66	{	79	{
		80	#if 1//D2
		81	if (protocol & PROT_IPv42 ) return "rawip2";
		82	#endif
67	if (protocol & PROT_IPv4 ) return "rawip";	83	if (protocol & PROT_IPv4 ) return "rawip";
		84	if (protocol & PROT_ICMPv4) return "icmp";
68	if (protocol & PROT_UDPv4) return "udp";	85	if (protocol & PROT_UDPv4 ) return "udp";
69	if (protocol & PROT_TCPv4) return "tcp";	86	if (protocol & PROT_TCPv4 ) return "tcp";
		87	if (protocol & PROT_DNSv4 ) return "dns";
70		88
71	return "<unknown>";	89	return "<unknown>";
72	}	90	}
73		91
74	void	92	static bool
75	conf_node::print ()	93	match_list (const vector<const char > &list, const char str)
76	{	94	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	95	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	96	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	97	return true;
80	compress ? 'Y' : 'N',	98	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	99	return true;
82	connectmode == C_NEVER ? "never" :	100
83	connectmode == C_ALWAYS ? "always" : "",	101	return false;
84	nodename,	102	}
85	hostname ? hostname : "",	103
86	hostname ? ":" : "",	104	bool
87	hostname ? udp_port : 0	105	conf_node::may_direct (struct conf_node *other)
88	);	106	{
		107	if (match_list (allow_direct, other->nodename))
		108	return true;
		109
		110	if (match_list (deny_direct, other->nodename))
		111	return false;
		112
		113	return true;
89	}	114	}
90		115
91	conf_node::~conf_node ()	116	conf_node::~conf_node ()
92	{	117	{
		118	#if 0
		119	// does not work, because string pointers etc. are shared
		120	// is not called, however
93	if (rsa_key)	121	if (rsa_key)
94	RSA_free (rsa_key);	122	RSA_free (rsa_key);
95		123
96	free (nodename);	124	free (nodename);
97	free (hostname);	125	free (hostname);
		126	free (if_up_data);
		127	#if ENABLE_DNS
		128	free (domain);
		129	free (dns_hostname);
		130	#endif
		131	#endif
98	}	132	}
99		133
		134	void
100	void configuration::init ()	135	configuration::init ()
101	{	136	{
102	memset (this, 0, sizeof (*this));	137	memset (this, 0, sizeof (*this));
103		138
		139	mtu = DEFAULT_MTU;
		140	nfmark = 0;
104	rekey = DEFAULT_REKEY;	141	rekey = DEFAULT_REKEY;
105	keepalive = DEFAULT_KEEPALIVE;	142	keepalive = DEFAULT_KEEPALIVE;
106	llevel = L_INFO;	143	llevel = L_INFO;
107	ip_proto = IPPROTO_GRE;	144	ip_proto = IPPROTO_GRE;
		145	#if 1 //D2
		146	ip2_proto = 7;
		147	#endif
		148	#if ENABLE_ICMP
		149	icmp_type = ICMP_ECHOREPLY;
		150	#endif
108		151
109	default_node.udp_port = DEFAULT_UDPPORT;	152	default_node.udp_port = DEFAULT_UDPPORT;
110	default_node.tcp_port = DEFAULT_UDPPORT;	153	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
111	default_node.connectmode = conf_node::C_ALWAYS;	154	default_node.connectmode = conf_node::C_ALWAYS;
112	default_node.compress = true;	155	default_node.compress = true;
113	default_node.protocols = PROT_UDPv4;	156	default_node.protocols = 0;
114	}	157	default_node.max_retry = DEFAULT_MAX_RETRY;
		158	default_node.max_ttl = DEFAULT_MAX_TTL;
		159	default_node.max_queue = DEFAULT_MAX_QUEUE;
		160	default_node.if_up_data = strdup ("");
115		161
		162	#if ENABLE_DNS
		163	default_node.dns_port = 0; // default is 0 == client
		164
		165	dns_case_preserving = true;
		166	dns_forw_host = strdup ("127.0.0.1");
		167	dns_forw_port = 53;
		168	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		169	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		170	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		171	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		172	#endif
		173
		174	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		175	}
		176
		177	void
116	void configuration::cleanup()	178	configuration::cleanup ()
117	{	179	{
118	if (rsa_key)	180	if (rsa_key)
119	RSA_free (rsa_key);	181	RSA_free (rsa_key);
120		182
121	rsa_key = 0;	183	rsa_key = 0;
122		184
123	free (ifname); ifname = 0;	185	free (pidfilename); pidfilename = 0;
		186	free (ifname); ifname = 0;
124	#if ENABLE_HTTP_PROXY	187	#if ENABLE_HTTP_PROXY
125	free (proxy_host); proxy_host = 0;	188	free (proxy_host); proxy_host = 0;
126	free (proxy_auth); proxy_auth = 0;	189	free (proxy_auth); proxy_auth = 0;
127	#endif	190	#endif
		191	#if ENABLE_DNS
		192	free (dns_forw_host); dns_forw_host = 0;
		193	#endif
		194	free (script_if_up); script_if_up = 0;
		195	free (script_node_up); script_node_up = 0;
		196	free (script_node_change); script_node_change = 0;
		197	free (script_node_down); script_node_down = 0;
128	}	198	}
129		199
130	void	200	void
131	configuration::clear_config ()	201	configuration::clear ()
132	{	202	{
133	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	203	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
134	delete *i;	204	delete *i;
135		205
136	nodes.clear ();	206	nodes.clear ();
137		207
138	cleanup ();	208	cleanup ();
139	init ();	209	init ();
140	}	210	}
141		211
		212	//static bool
		213	//is_true (const char *name)
		214	//{
		215	//re
		216	//}
		217
142	#define parse_bool(target,name,trueval,falseval) \	218	#define parse_bool(target,name,trueval,falseval) do { \
143	if (!strcmp (val, "yes")) target = trueval; \	219	if (!strcmp (val, "yes")) target = trueval; \
144	else if (!strcmp (val, "no")) target = falseval; \	220	else if (!strcmp (val, "no")) target = falseval; \
145	else if (!strcmp (val, "true")) target = trueval; \	221	else if (!strcmp (val, "true")) target = trueval; \
146	else if (!strcmp (val, "false")) target = falseval; \	222	else if (!strcmp (val, "false")) target = falseval; \
147	else if (!strcmp (val, "on")) target = trueval; \	223	else if (!strcmp (val, "on")) target = trueval; \
148	else if (!strcmp (val, "off")) target = falseval; \	224	else if (!strcmp (val, "off")) target = falseval; \
149	else \	225	else \
150	slog (L_WARN, \
151	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	226	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
152	name, var, fname, lineno);	227	} while (0)
153		228
154	void configuration::read_config (bool need_keys)	229	const char *
		230	configuration_parser::parse_line (char *line)
155	{	231	{
		232	{
		233	char *end = line + strlen (line);
		234
		235	while (*end < ' ' && end >= line)
		236	end--;
		237
		238	*++end = 0;
		239	}
		240
		241	char *tok = line;
		242	const char *var = strtok (tok, "\t =");
		243	tok = 0;
		244
		245	if (!var \|\| !var[0])
		246	return 0; /* no tokens on this line */
		247
		248	if (var[0] == '#')
		249	return 0; /* comment: ignore */
		250
		251	char *val = strtok (NULL, "\t\n\r =");
		252
		253	if (!val \|\| val[0] == '#')
		254	return _("no value given for variable, ignored");
		255
		256	else if (!strcmp (var, "on"))
		257	{
		258	if (::thisnode
		259	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		260	\|\| !strcmp (val, ::thisnode)))
		261	return parse_line (strtok (NULL, "\n\r"));
		262	}
		263
		264	else if (!strcmp (var, "include"))
		265	{
		266	char *fname = conf.config_filename (val);
		267	parse_file (fname);
		268	free (fname);
		269	}
		270
		271	// truly global
		272	else if (!strcmp (var, "loglevel"))
		273	{
		274	loglevel l = string_to_loglevel (val);
		275
		276	if (l == L_NONE)
		277	return _("unknown loglevel, ignored");
		278	}
		279	else if (!strcmp (var, "ip-proto"))
		280	conf.ip_proto = atoi (val);
		281	#if 1 //D2
		282	else if (!strcmp (var, "ip2-proto"))
		283	conf.ip2_proto = atoi (val);
		284	#endif
		285	else if (!strcmp (var, "icmp-type"))
		286	{
		287	#if ENABLE_ICMP
		288	conf.icmp_type = atoi (val);
		289	#endif
		290	}
		291
		292	// per config
		293	else if (!strcmp (var, "node"))
		294	{
		295	parse_argv ();
		296
		297	conf.default_node.id++;
		298	node = new conf_node (conf.default_node);
		299	conf.nodes.push_back (node);
		300	node->nodename = strdup (val);
		301
		302	{
156	char *fname;	303	char *fname;
157	FILE *f;	304	FILE *f;
158		305
159	clear_config ();	306	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
160		307
161	asprintf (&fname, "%s/vped.conf", confbase);
162	f = fopen (fname, "r");	308	f = fopen (fname, "r");
		309	if (f)
		310	{
		311	node->rsa_key = RSA_new ();
163		312
164	if (f)	313	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		314	{
		315	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		316	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		317	exit (EXIT_FAILURE);
		318	}
		319
		320	require (RSA_blinding_on (node->rsa_key, 0));
		321
		322	fclose (f);
		323	}
		324	else
		325	{
		326	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		327
		328	if (need_keys)
		329	exit (EXIT_FAILURE);
		330	}
		331
		332	free (fname);
		333	}
		334
		335	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		336	conf.thisnode = node;
165	{	337	}
		338	else if (!strcmp (var, "private-key"))
		339	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		340	else if (!strcmp (var, "ifpersist"))
		341	parse_bool (conf.ifpersist, "ifpersist", true, false);
		342	else if (!strcmp (var, "ifname"))
		343	free (conf.ifname), conf.ifname = strdup (val);
		344	else if (!strcmp (var, "rekey"))
		345	conf.rekey = atoi (val);
		346	else if (!strcmp (var, "keepalive"))
		347	conf.keepalive = atoi (val);
		348	else if (!strcmp (var, "mtu"))
		349	conf.mtu = atoi (val);
		350	else if (!strcmp (var, "nfmark"))
		351	conf.nfmark = atoi (val);
		352	else if (!strcmp (var, "if-up"))
		353	free (conf.script_if_up), conf.script_if_up = strdup (val);
		354	else if (!strcmp (var, "node-up"))
		355	free (conf.script_node_up), conf.script_node_up = strdup (val);
		356	else if (!strcmp (var, "node-change"))
		357	free (conf.script_node_change), conf.script_node_change = strdup (val);
		358	else if (!strcmp (var, "node-down"))
		359	free (conf.script_node_down), conf.script_node_down = strdup (val);
		360	else if (!strcmp (var, "pid-file"))
		361	free (conf.pidfilename), conf.pidfilename = strdup (val);
		362	else if (!strcmp (var, "dns-forw-host"))
		363	{
		364	#if ENABLE_DNS
		365	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-forw-port"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_forw_port = atoi (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-timeout-factor"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_timeout_factor = atof (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-send-interval"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_send_interval = atoi (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-overlap-factor"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_overlap_factor = atof (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-max-outstanding"))
		393	{
		394	#if ENABLE_DNS
		395	conf.dns_max_outstanding = atoi (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "dns-case-preserving"))
		399	{
		400	#if ENABLE_DNS
		401	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-host"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	free (conf.proxy_host), conf.proxy_host = strdup (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-port"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_port = atoi (val);
		414	#endif
		415	}
		416	else if (!strcmp (var, "http-proxy-auth"))
		417	{
		418	#if ENABLE_HTTP_PROXY
		419	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		420	#endif
		421	}
		422
		423	/* node-specific, non-defaultable */
		424	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		425	free (node->hostname), node->hostname = strdup (val);
		426
		427	/* node-specific, defaultable */
		428	else if (!strcmp (var, "udp-port"))
		429	node->udp_port = atoi (val);
		430	else if (!strcmp (var, "tcp-port"))
		431	node->tcp_port = atoi (val);
		432	else if (!strcmp (var, "dns-hostname"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->dns_hostname), node->dns_hostname = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-port"))
		439	{
		440	#if ENABLE_DNS
		441	node->dns_port = atoi (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "dns-domain"))
		445	{
		446	#if ENABLE_DNS
		447	free (node->domain), node->domain = strdup (val);
		448	#endif
		449	}
		450	else if (!strcmp (var, "if-up-data"))
		451	free (node->if_up_data), node->if_up_data = strdup (val);
		452	else if (!strcmp (var, "router-priority"))
		453	node->routerprio = atoi (val);
		454	else if (!strcmp (var, "max-retry"))
		455	node->max_retry = atoi (val);
		456	else if (!strcmp (var, "connect"))
		457	{
		458	if (!strcmp (val, "ondemand"))
		459	node->connectmode = conf_node::C_ONDEMAND;
		460	else if (!strcmp (val, "never"))
		461	node->connectmode = conf_node::C_NEVER;
		462	else if (!strcmp (val, "always"))
		463	node->connectmode = conf_node::C_ALWAYS;
		464	else if (!strcmp (val, "disabled"))
		465	node->connectmode = conf_node::C_DISABLED;
		466	else
		467	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		468	}
		469	else if (!strcmp (var, "inherit-tos"))
		470	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		471	else if (!strcmp (var, "compress"))
		472	parse_bool (node->compress, "compress", true, false);
		473	// all these bool options really really cost a lot of executable size!
		474	else if (!strcmp (var, "enable-tcp"))
		475	{
		476	#if ENABLE_TCP
		477	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-icmp"))
		481	{
		482	#if ENABLE_ICMP
		483	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-dns"))
		487	{
		488	#if ENABLE_DNS
		489	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		490	#endif
		491	}
		492	else if (!strcmp (var, "enable-udp"))
		493	{
		494	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		495	}
		496	else if (!strcmp (var, "enable-rawip"))
		497	{
		498	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		499	}
		500	#if 1//D2
		501	else if (!strcmp (var, "enable-rawip2"))
		502	{
		503	u8 v; parse_bool (v, "enable-rawip2", PROT_IPv42, 0); node->protocols = (node->protocols & ~PROT_IPv42 ) \| v;
		504	}
		505	#endif
		506	else if (!strcmp (var, "allow-direct"))
		507	node->allow_direct.push_back (strdup (val));
		508	else if (!strcmp (var, "deny-direct"))
		509	node->deny_direct.push_back (strdup (val));
		510	else if (!strcmp (var, "max-ttl"))
		511	node->max_ttl = atof (val);
		512	else if (!strcmp (var, "max-queue"))
		513	node->max_queue = atoi (val);
		514
		515	// unknown or misplaced
		516	else
		517	return _("unknown configuration directive - ignored");
		518
		519	return 0;
		520	}
		521
		522	void
		523	conf_node::finalise ()
		524	{
		525	if (max_queue < 1)
		526	{
		527	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		528	max_queue = 1;
		529	}
		530
		531	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		532	{
		533	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		534	connectmode = C_ALWAYS;
		535	}
		536	}
		537
		538	void
		539	configuration_parser::parse_argv ()
		540	{
		541	for (int i = 0; i < argc; ++i)
		542	{
		543	char *v = argv [i];
		544
		545	if (!*v)
		546	continue;
		547
		548	char *enode = v;
		549
		550	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		551	enode++;
		552
		553	if (*enode != '.')
		554	enode = 0;
		555
		556	char *wnode = node == &conf.default_node
		557	? 0
		558	: node->nodename;
		559
		560	if ((!wnode && !enode)
		561	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		562	{
		563	const char *warn = parse_line (enode ? enode + 1 : v);
		564
		565	if (warn)
		566	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		567
		568	*v = 0;
		569	}
		570	}
		571	}
		572
		573	void
		574	configuration_parser::parse_file (const char *fname)
		575	{
		576	if (FILE *f = fopen (fname, "r"))
		577	{
166	char line[16384];	578	char line [2048];
167	int lineno = 0;	579	int lineno = 0;
168	char var, val;
169	conf_node *node = &default_node;
170		580
171	while (fgets (line, sizeof (line), f))	581	while (fgets (line, sizeof (line), f))
172	{	582	{
173	lineno++;	583	lineno++;
174		584
175	{	585	const char *warn = parse_line (line);
176	char *end = line + strlen (line);
177		586
178	while (*end < ' ' && end >= line)	587	if (warn)
179	end--;	588	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
180
181	*++end = 0;
182	}
183
184	char *tok = line;
185
186	retry:
187	var = strtok (tok, "\t =");
188	tok = 0;
189
190	if (!var \|\| !var[0])
191	continue; /* no tokens on this line */
192
193	if (var[0] == '#')
194	continue; /* comment: ignore */
195
196	val = strtok (NULL, "\t\n\r =");
197
198	if (!val \|\| val[0] == '#')
199	{
200	slog (L_WARN,
201	_("no value for variable `%s', at '%s' line %d"),
202	var, fname, lineno);
203	break;
204	}
205
206	if (!strcmp (var, "on"))
207	{
208	if (!::thisnode
209	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
210	\|\| !strcmp (val, ::thisnode))
211	goto retry;
212
213	continue;
214	}
215
216	// truly global
217	if (!strcmp (var, "loglevel"))
218	{
219	loglevel l = string_to_loglevel (val);
220
221	if (l != L_NONE)
222	llevel = l;
223	else
224	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
225	}
226	else if (!strcmp (var, "ip-proto"))
227	ip_proto = atoi (val);
228
229	// per config
230	else if (!strcmp (var, "node"))
231	{
232	default_node.id++;
233
234	node = new conf_node (default_node);
235
236	nodes.push_back (node);
237
238	node->nodename = strdup (val);
239
240	{
241	char *fname;
242	FILE *f;
243
244	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
245
246	f = fopen (fname, "r");
247	if (f)
248	{
249	node->rsa_key = RSA_new ();
250
251	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
252	{
253	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
254	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
255	exit (1);
256	}
257
258	RSA_blinding_on (node->rsa_key, 0);
259
260	fclose (f);
261	}
262	else
263	{
264	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
265
266	if (need_keys)
267	exit (1);
268	}
269
270	free (fname);
271	}
272
273	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
274	thisnode = node;
275	}
276	else if (!strcmp (var, "private-key"))
277	prikeyfile = strdup (val);
278	else if (!strcmp (var, "ifpersist"))
279	{
280	parse_bool (ifpersist, "ifpersist", true, false);
281	}
282	else if (!strcmp (var, "ifname"))
283	ifname = strdup (val);
284	else if (!strcmp (var, "rekey"))
285	rekey = atoi (val);
286	else if (!strcmp (var, "keepalive"))
287	keepalive = atoi (val);
288	else if (!strcmp (var, "mtu"))
289	mtu = atoi (val);
290	else if (!strcmp (var, "if-up"))
291	script_if_up = strdup (val);
292	else if (!strcmp (var, "node-up"))
293	script_node_up = strdup (val);
294	else if (!strcmp (var, "node-down"))
295	script_node_down = strdup (val);
296	#if ENABLE_HTTP_PROXY
297	else if (!strcmp (var, "http-proxy-host"))
298	proxy_host = strdup (val);
299	else if (!strcmp (var, "http-proxy-port"))
300	proxy_port = atoi (val);
301	else if (!strcmp (var, "http-proxy-auth"))
302	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
303	#endif
304
305	/* node-specific, non-defaultable */
306	else if (node != &default_node && !strcmp (var, "hostname"))
307	{
308	free (node->hostname);
309	node->hostname = strdup (val);
310	}
311
312	/* node-specific, defaultable */
313	else if (!strcmp (var, "udp-port"))
314	node->udp_port = atoi (val);
315	else if (!strcmp (var, "tcp-port"))
316	node->tcp_port = atoi (val);
317	else if (!strcmp (var, "router-priority"))
318	node->routerprio = atoi (val);
319	else if (!strcmp (var, "connect"))
320	{
321	if (!strcmp (val, "ondemand"))
322	node->connectmode = conf_node::C_ONDEMAND;
323	else if (!strcmp (val, "never"))
324	node->connectmode = conf_node::C_NEVER;
325	else if (!strcmp (val, "always"))
326	node->connectmode = conf_node::C_ALWAYS;
327	else if (!strcmp (val, "disabled"))
328	node->connectmode = conf_node::C_DISABLED;
329	else
330	slog (L_WARN,
331	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
332	var, fname, lineno);
333	}
334	else if (!strcmp (var, "inherit-tos"))
335	{
336	parse_bool (node->inherit_tos, "inherit-tos", true, false);
337	}
338	else if (!strcmp (var, "compress"))
339	{
340	parse_bool (node->compress, "compress", true, false);
341	}
342	// all these bool options really really cost a lot of executable size!
343	else if (!strcmp (var, "enable-tcp"))
344	{
345	#if ENABLE_TCP
346	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
347	#endif
348	}
349	else if (!strcmp (var, "enable-udp"))
350	{
351	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
352	}
353	else if (!strcmp (var, "enable-rawip"))
354	{
355	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
356	}
357
358	// unknown or misplaced
359	else
360	slog (L_WARN,
361	_("unknown or misplaced variable `%s', at '%s' line %d"),
362	var, fname, lineno);
363	}	589	}
364		590
365	fclose (f);	591	fclose (f);
		592
		593	parse_argv ();
366	}	594	}
367	else	595	else
368	{	596	{
369	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	597	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
370	exit (1);	598	exit (EXIT_FAILURE);
371	}	599	}
		600	}
372		601
		602	configuration_parser::configuration_parser (configuration &conf,
		603	bool need_keys,
		604	int argc,
		605	char **argv)
		606	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		607	{
		608	char *fname;
		609
		610	conf.clear ();
		611	node = &conf.default_node;
		612
		613	asprintf (&fname, "%s/gvpe.conf", confbase);
		614	parse_file (fname);
373	free (fname);	615	free (fname);
374		616
375	fname = config_filename (prikeyfile, "hostkey");	617	fname = conf.config_filename (conf.prikeyfile, "hostkey");
376		618
377	f = fopen (fname, "r");	619	if (FILE *f = fopen (fname, "r"))
378	if (f)
379	{	620	{
380	rsa_key = RSA_new ();	621	conf.rsa_key = RSA_new ();
381		622
382	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	623	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
383	{	624	{
384	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	625	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
385	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	626	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
386	exit (1);	627	exit (EXIT_FAILURE);
387	}	628	}
388		629
389	RSA_blinding_on (rsa_key, 0);	630	require (RSA_blinding_on (conf.rsa_key, 0));
390		631
391	fclose (f);	632	fclose (f);
392	}	633	}
393	else	634	else
394	{	635	{
395	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	636	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
396		637
397	if (need_keys)	638	if (need_keys)
398	exit (1);	639	exit (EXIT_FAILURE);
399	}	640	}
400		641
401	free (fname);	642	free (fname);
402	}
403		643
		644	if (need_keys && ::thisnode
		645	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		646	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		647	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		648	{
		649	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		650	exit (EXIT_FAILURE);
		651	}
		652
		653	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		654	(*i)->finalise ();
		655	}
		656
		657	char *
404	char configuration::config_filename (const char name, const char *dflt)	658	configuration::config_filename (const char name, const char dflt)
405	{	659	{
406	char *fname;	660	char *fname;
407		661
408	asprintf (&fname, name ? name : dflt, ::thisnode);	662	asprintf (&fname, name ? name : dflt, ::thisnode);
409		663
…		…
413	asprintf (&fname, "%s/%s", confbase, rname);	667	asprintf (&fname, "%s/%s", confbase, rname);
414	free (rname);	668	free (rname);
415	}	669	}
416		670
417	return fname;	671	return fname;
		672	}
		673
		674	void
		675	conf_node::print ()
		676	{
		677	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		678	id,
		679	id >> 8, id & 0xff,
		680	compress ? 'Y' : 'N',
		681	connectmode == C_ONDEMAND ? "ondemand"
		682	: connectmode == C_NEVER ? "never"
		683	: connectmode == C_ALWAYS ? "always"
		684	: connectmode == C_DISABLED ? "disabled"
		685	: "",
		686	nodename,
		687	protocols,
		688	hostname ? hostname : "",
		689	hostname ? ":" : "",
		690	hostname ? udp_port : 0
		691	);
418	}	692	}
419		693
420	void	694	void
421	configuration::print ()	695	configuration::print ()
422	{	696	{
…		…
426	printf (_("MTU: %d\n"), mtu);	700	printf (_("MTU: %d\n"), mtu);
427	printf (_("rekeying interval: %d\n"), rekey);	701	printf (_("rekeying interval: %d\n"), rekey);
428	printf (_("keepalive interval: %d\n"), keepalive);	702	printf (_("keepalive interval: %d\n"), keepalive);
429	printf (_("interface: %s\n"), ifname);	703	printf (_("interface: %s\n"), ifname);
430	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	704	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
431	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	705	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
432	printf ("\n");	706	printf ("\n");
433		707
434	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	708	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
435	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	709	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
436		710
437	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	711	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
438	(*i)->print ();	712	(*i)->print ();
439		713
440	printf ("\n");	714	printf ("\n");
441	}	715	}
442		716
443	configuration::configuration ()	717	configuration::configuration ()
444	{	718	{
		719	asprintf (&confbase, "%s/gvpe", CONFDIR);
		720
445	init ();	721	init ();
446	}	722	}
447		723
448	configuration::~configuration ()	724	configuration::~configuration ()
449	{	725	{
450	cleanup ();	726	cleanup ();
451	}	727	}
452		728
453

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Comparing gvpe/src/conf.C (file contents): Revision 1.12 by pcg, Mon Apr 7 01:12:56 2003 UTC vs. Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.12 by pcg, Mon Apr 7 01:12:56 2003 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC