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

Comparing gvpe/src/conf.C (file contents):
Revision 1.6 by pcg, Fri Mar 28 16:14:40 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		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
56	configuration::configuration ()	62	u8
		63	best_protocol (u8 protset)
57	{	64	{
58	init ();	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	}	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
60		70
61	configuration::~configuration ()	71	return 0;
62	{
63	cleanup ();
64	}	72	}
65		73
		74	const char *
		75	strprotocol (u8 protocol)
		76	{
		77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
		79	if (protocol & PROT_UDPv4 ) return "udp";
		80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
		82
		83	return "<unknown>";
		84	}
		85
		86	static bool
		87	match_list (const vector<const char > &list, const char str)
		88	{
		89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
		90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
		94
		95	return false;
		96	}
		97
		98	bool
		99	conf_node::may_direct (struct conf_node *other)
		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;
		108	}
		109
		110	conf_node::~conf_node ()
		111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
		115	if (rsa_key)
		116	RSA_free (rsa_key);
		117
		118	free (nodename);
		119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
		126	}
		127
		128	void
66	void configuration::init ()	129	configuration::init ()
67	{	130	{
68	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
69		132
		133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
70	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
71	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
72	llevel = L_INFO;	137	llevel = L_INFO;
73	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
		139	#if ENABLE_ICMP
		140	icmp_type = ICMP_ECHOREPLY;
		141	#endif
74		142
75	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
		144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
76	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
77	default_node.compress = true;	146	default_node.compress = true;
78	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
79	}	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 ("");
80		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
81	void configuration::cleanup()	169	configuration::cleanup ()
82	{	170	{
83	if (rsa_key)	171	if (rsa_key)
84	RSA_free (rsa_key);	172	RSA_free (rsa_key);
85		173
86	free (ifname);
87
88	rsa_key = 0;	174	rsa_key = 0;
89	ifname = 0;	175
		176	free (pidfilename); pidfilename = 0;
		177	free (ifname); ifname = 0;
		178	#if ENABLE_HTTP_PROXY
		179	free (proxy_host); proxy_host = 0;
		180	free (proxy_auth); proxy_auth = 0;
		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;
90	}	189	}
91		190
92	void	191	void
93	configuration::clear_config ()	192	configuration::clear ()
94	{	193	{
95	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)
96	delete *i;	195	delete *i;
97		196
98	nodes.clear ();	197	nodes.clear ();
99		198
100	cleanup ();	199	cleanup ();
101	init ();	200	init ();
102	}	201	}
103		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
104	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
105	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
106	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
107	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
108	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
109	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
110	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
111	else \	216	else \
112	slog (L_WARN, \	217	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
113	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	218	} while (0)
114	name, var, fname, lineno);
115		219
116	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
117	{	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	{
118	char *fname;	290	char *fname;
119	FILE *f;	291	FILE *f;
120		292
121	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
122		294
123	asprintf (&fname, "%s/vped.conf", confbase);
124	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
125		299
126	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;
127	{	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	{
128	char line[16384];	559	char line [2048];
129	int lineno = 0;	560	int lineno = 0;
130	char var, val;	561	node = &conf.default_node;
131	conf_node *node = &default_node;
132		562
133	while (fgets (line, sizeof (line), f))	563	while (fgets (line, sizeof (line), f))
134	{	564	{
135	lineno++;	565	lineno++;
136		566
137	{	567	const char *warn = parse_line (line);
138	char *end = line + strlen (line);
139		568
140	while (*end < ' ' && end >= line)	569	if (warn)
141	end--;	570	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
142
143	*++end = 0;
144	}
145
146	char *tok = line;
147
148	retry:
149	var = strtok (tok, "\t =");
150	tok = 0;
151
152	if (!var \|\| !var[0])
153	continue; /* no tokens on this line */
154
155	if (var[0] == '#')
156	continue; /* comment: ignore */
157
158	val = strtok (NULL, "\t\n\r =");
159
160	if (!val \|\| val[0] == '#')
161	{
162	slog (L_WARN,
163	_("no value for variable `%s', at '%s' line %d"),
164	var, fname, lineno);
165	break;
166	}
167
168	if (!strcmp (var, "on"))
169	{
170	if (!::thisnode
171	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
172	\|\| !strcmp (val, ::thisnode))
173	goto retry;
174
175	continue;
176	}
177
178	// truly global
179	if (!strcmp (var, "loglevel"))
180	{
181	loglevel l = string_to_loglevel (val);
182
183	if (l != L_NONE)
184	llevel = l;
185	else
186	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
187	}
188	else if (!strcmp (var, "ip-proto"))
189	ip_proto = atoi (val);
190
191	// per config
192	else if (!strcmp (var, "node"))
193	{
194	default_node.id++;
195
196	node = new conf_node (default_node);
197
198	nodes.push_back (node);
199
200	node->nodename = strdup (val);
201
202	{
203	char *fname;
204	FILE *f;
205
206	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
207
208	f = fopen (fname, "r");
209	if (f)
210	{
211	node->rsa_key = RSA_new ();
212
213	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
214	{
215	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
216	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
217	exit (1);
218	}
219
220	RSA_blinding_on (node->rsa_key, 0);
221
222	fclose (f);
223	}
224	else
225	{
226	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
227
228	if (need_keys)
229	exit (1);
230	}
231
232	free (fname);
233	}
234
235	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
236	thisnode = node;
237	}
238	else if (!strcmp (var, "private-key"))
239	prikeyfile = strdup (val);
240	else if (!strcmp (var, "ifpersist"))
241	{
242	parse_bool (ifpersist, "ifpersist", true, false);
243	}
244	else if (!strcmp (var, "ifname"))
245	ifname = strdup (val);
246	else if (!strcmp (var, "rekey"))
247	rekey = atoi (val);
248	else if (!strcmp (var, "keepalive"))
249	keepalive = atoi (val);
250	else if (!strcmp (var, "mtu"))
251	mtu = atoi (val);
252	else if (!strcmp (var, "if-up"))
253	script_if_up = strdup (val);
254	else if (!strcmp (var, "node-up"))
255	script_node_up = strdup (val);
256	else if (!strcmp (var, "node-down"))
257	script_node_down = strdup (val);
258
259	/* node-specific, non-defaultable */
260	else if (node != &default_node && !strcmp (var, "hostname"))
261	{
262	free (node->hostname);
263	node->hostname = strdup (val);
264	}
265
266	/* node-specific, defaultable */
267	else if (!strcmp (var, "udp-port"))
268	node->udp_port = atoi (val);
269	else if (!strcmp (var, "router-priority"))
270	node->routerprio = atoi (val);
271	else if (!strcmp (var, "connect"))
272	{
273	if (!strcmp (val, "ondemand"))
274	node->connectmode = conf_node::C_ONDEMAND;
275	else if (!strcmp (val, "never"))
276	node->connectmode = conf_node::C_NEVER;
277	else if (!strcmp (val, "always"))
278	node->connectmode = conf_node::C_ALWAYS;
279	else if (!strcmp (val, "disabled"))
280	node->connectmode = conf_node::C_DISABLED;
281	else
282	slog (L_WARN,
283	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
284	var, fname, lineno);
285	}
286	else if (!strcmp (var, "inherit-tos"))
287	{
288	parse_bool (node->inherit_tos, "inherit-tos", true, false);
289	}
290	else if (!strcmp (var, "compress"))
291	{
292	parse_bool (node->compress, "compress", true, false);
293	}
294	// all these bool options really really cost a lot of executable size!
295	else if (!strcmp (var, "enable-udp"))
296	{
297	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
298	}
299	else if (!strcmp (var, "enable-rawip"))
300	{
301	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
302	}
303
304	// unknown or misplaced
305	else
306	{
307	slog (L_WARN,
308	_("unknown or misplaced variable `%s', at '%s' line %d"),
309	var, fname, lineno);
310	}
311	}	571	}
312		572
313	fclose (f);	573	fclose (f);
		574
		575	parse_argv ();
314	}	576	}
315	else	577	else
316	{	578	{
317	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));
318	exit (1);	580	exit (EXIT_FAILURE);
319	}	581	}
		582	}
320		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);
321	free (fname);	596	free (fname);
322		597
323	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
324		599
325	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
326	if (f)
327	{	601	{
328	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
329		603
330	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
331	{	605	{
332	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
333	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));
334	exit (1);	608	exit (EXIT_FAILURE);
335	}	609	}
336		610
337	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
338		612
339	fclose (f);	613	fclose (f);
340	}	614	}
341	else	615	else
342	{	616	{
343	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));
344		618
345	if (need_keys)	619	if (need_keys)
346	exit (1);	620	exit (EXIT_FAILURE);
347	}	621	}
348		622
349	free (fname);	623	free (fname);
350	}
351		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 *
352	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
353	{	640	{
354	char *fname;	641	char *fname;
355		642
356	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
357		644
…		…
361	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
362	free (rname);	649	free (rname);
363	}	650	}
364		651
365	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	);
366	}	673	}
367		674
368	void	675	void
369	configuration::print ()	676	configuration::print ()
370	{	677	{
…		…
374	printf (_("MTU: %d\n"), mtu);	681	printf (_("MTU: %d\n"), mtu);
375	printf (_("rekeying interval: %d\n"), rekey);	682	printf (_("rekeying interval: %d\n"), rekey);
376	printf (_("keepalive interval: %d\n"), keepalive);	683	printf (_("keepalive interval: %d\n"), keepalive);
377	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
378	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
379	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);
380	printf ("\n");	687	printf ("\n");
381		688
382	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
383	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
384		691
385	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
386	(*i)->print ();	693	(*i)->print ();
387		694
388	printf ("\n");	695	printf ("\n");
389	}	696	}
390		697
391	void	698	configuration::configuration ()
392	conf_node::print ()
393	{	699	{
394	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	700	asprintf (&confbase, "%s/gvpe", CONFDIR);
395	id,
396	id >> 8, id & 0xff,
397	compress ? 'Y' : 'N',
398	connectmode == C_ONDEMAND ? "ondemand" :
399	connectmode == C_NEVER ? "never" :
400	connectmode == C_ALWAYS ? "always" : "",
401	nodename,
402	hostname ? hostname : "",
403	hostname ? ":" : "",
404	hostname ? udp_port : 0
405	);
406	}
407		701
		702	init ();
		703	}
		704
		705	configuration::~configuration ()
		706	{
		707	cleanup ();
		708	}
		709

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Comparing gvpe/src/conf.C (file contents): Revision 1.6 by pcg, Fri Mar 28 16:14:40 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 1.6 by pcg, Fri Mar 28 16:14:40 2003 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC