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

Comparing gvpe/src/conf.C (file contents):
Revision 1.2 by pcg, Thu Mar 6 18:43:07 2003 UTC vs.
Revision 1.60 by root, Sat Jul 13 04:10:29 2013 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>
30	#include <errno.h>	38	#include <errno.h>
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>
		43	#include <pwd.h>
		44
		45	#include "netcompat.h"
35		46
36	#include <openssl/err.h>	47	#include <openssl/err.h>
37	#include <openssl/pem.h>	48	#include <openssl/pem.h>
38	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
39	#include <openssl/rand.h>	50	#include <openssl/rand.h>
40		51	#include <openssl/bn.h>
41	#include "gettext.h"
42		52
43	#include "conf.h"	53	#include "conf.h"
44	#include "slog.h"	54	#include "slog.h"
45	#include "util.h"	55	#include "util.h"
46		56
47	char *confbase;	57	char *confbase;
48	char *thisnode;	58	char *thisnode;
49	char *identname;	59	char *identname;
50	char *pidfilename;
51		60
52	struct configuration conf;	61	struct configuration conf;
53		62
54	configuration::configuration ()	63	u8
		64	best_protocol (u8 protset)
55	{	65	{
56	init ();	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
57	}	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58		71
59	configuration::~configuration ()	72	return 0;
60	{
61	cleanup ();
62	}	73	}
63		74
		75	const char *
		76	strprotocol (u8 protocol)
		77	{
		78	if (protocol & PROT_IPv4 ) return "rawip";
		79	if (protocol & PROT_ICMPv4) return "icmp";
		80	if (protocol & PROT_UDPv4 ) return "udp";
		81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
		83
		84	return "<unknown>";
		85	}
		86
		87	static bool
		88	match_list (const vector<const char > &list, const char str)
		89	{
		90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
		91	if ((i)[0] == '' && !(*i)[1])
		92	return true;
		93	else if (!strcmp (*i, str))
		94	return true;
		95
		96	return false;
		97	}
		98
		99	bool
		100	conf_node::may_direct (struct conf_node *other)
		101	{
		102	if (match_list (allow_direct, other->nodename))
		103	return true;
		104
		105	if (match_list (deny_direct, other->nodename))
		106	return false;
		107
		108	return true;
		109	}
		110
		111	conf_node::~conf_node ()
		112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
		116	if (rsa_key)
		117	RSA_free (rsa_key);
		118
		119	free (nodename);
		120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
		127	}
		128
		129	void
64	void configuration::init ()	130	configuration::init ()
65	{	131	{
66	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
67		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
68	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
69	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
70	llevel = L_INFO;	138	llevel = L_INFO;
		139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
71		143
72	default_node.port = DEFAULT_PORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
		145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
73	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
74	default_node.compress = true;	147	default_node.compress = true;
75	}	148	default_node.protocols = 0;
		149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
76		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
		166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
		169	}
		170
		171	void
77	void configuration::cleanup()	172	configuration::cleanup ()
78	{	173	{
79	if (rsa_key)	174	if (rsa_key)
80	RSA_free (rsa_key);	175	RSA_free (rsa_key);
81		176
82	free (ifname);
83
84	rsa_key = 0;	177	rsa_key = 0;
85	ifname = 0;	178
		179	free (seed_dev); seed_dev = 0;
		180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
		182	#if ENABLE_HTTP_PROXY
		183	free (proxy_host); proxy_host = 0;
		184	free (proxy_auth); proxy_auth = 0;
		185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
86	}	194	}
87		195
88	void	196	void
89	configuration::clear_config ()	197	configuration::clear ()
90	{	198	{
91	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
92	delete *i;	200	delete *i;
93		201
94	nodes.clear ();	202	nodes.clear ();
95		203
96	cleanup ();	204	cleanup ();
97	init ();	205	init ();
98	}	206	}
99		207
100	void configuration::read_config (bool need_keys)	208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
		214	#define parse_bool(target,name,trueval,falseval) do { \
		215	if (!strcmp (val, "yes")) target = trueval; \
		216	else if (!strcmp (val, "no")) target = falseval; \
		217	else if (!strcmp (val, "true")) target = trueval; \
		218	else if (!strcmp (val, "false")) target = falseval; \
		219	else if (!strcmp (val, "on")) target = trueval; \
		220	else if (!strcmp (val, "off")) target = falseval; \
		221	else \
		222	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
		223	} while (0)
		224
		225	const char *
		226	configuration_parser::parse_line (char *line)
101	{	227	{
		228	{
		229	char *end = line + strlen (line);
		230
		231	while (*end < ' ' && end >= line)
		232	end--;
		233
		234	*++end = 0;
		235	}
		236
		237	char *tok = line;
		238	const char *var = strtok (tok, "\t =");
		239	tok = 0;
		240
		241	if (!var \|\| !var[0])
		242	return 0; /* no tokens on this line */
		243
		244	if (var[0] == '#')
		245	return 0; /* comment: ignore */
		246
		247	char *val = strtok (NULL, "\t\n\r =");
		248
		249	if (!val \|\| val[0] == '#')
		250	return _("no value given for variable, ignored");
		251
		252	else if (!strcmp (var, "on"))
		253	{
		254	if (::thisnode
		255	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		256	\|\| !strcmp (val, ::thisnode)))
		257	return parse_line (strtok (NULL, "\n\r"));
		258	}
		259
		260	else if (!strcmp (var, "include"))
		261	{
		262	char *fname = conf.config_filename (val);
		263	parse_file (fname);
		264	free (fname);
		265	}
		266
		267	// truly global
		268	else if (!strcmp (var, "loglevel"))
		269	{
		270	loglevel l = string_to_loglevel (val);
		271
		272	if (l == L_NONE)
		273	return _("unknown loglevel, ignored");
		274	}
		275	else if (!strcmp (var, "ip-proto"))
		276	conf.ip_proto = atoi (val);
		277	else if (!strcmp (var, "icmp-type"))
		278	{
		279	#if ENABLE_ICMP
		280	conf.icmp_type = atoi (val);
		281	#endif
		282	}
		283	else if (!strcmp (var, "chuser"))
		284	{
		285	struct passwd *pw = getpwnam (val);
		286	if (!pw)
		287	return _("user specified for chuser not found");
		288
		289	conf.change_uid = pw->pw_uid;
		290	conf.change_gid = pw->pw_gid;
		291	}
		292	else if (!strcmp (var, "chuid"))
		293	conf.change_uid = atoi (val);
		294	else if (!strcmp (var, "chgid"))
		295	conf.change_gid = atoi (val);
		296	else if (!strcmp (var, "chroot"))
		297	free (conf.change_root), conf.change_root = strdup (val);
		298
		299	// per node
		300	else if (!strcmp (var, "node"))
		301	{
		302	parse_argv ();
		303
		304	conf.default_node.id++;
		305	node = new conf_node (conf.default_node);
		306	conf.nodes.push_back (node);
		307	node->nodename = strdup (val);
		308
		309	{
102	char *fname;	310	char *fname;
103	FILE *f;	311	FILE *f;
104		312
105	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
106		314
107	asprintf (&fname, "%s/vped.conf", confbase);
108	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
109		319
110	if (f)	320	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		321	{
		322	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		323	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		324	exit (EXIT_FAILURE);
		325	}
		326
		327	require (RSA_blinding_on (node->rsa_key, 0));
		328
		329	fclose (f);
		330	}
		331	else
		332	{
		333	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		334
		335	if (need_keys)
		336	exit (EXIT_FAILURE);
		337	}
		338
		339	free (fname);
		340	}
		341
		342	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		343	conf.thisnode = node;
111	{	344	}
		345	else if (!strcmp (var, "private-key"))
		346	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		347	else if (!strcmp (var, "ifpersist"))
		348	parse_bool (conf.ifpersist, "ifpersist", true, false);
		349	else if (!strcmp (var, "ifname"))
		350	free (conf.ifname), conf.ifname = strdup (val);
		351	else if (!strcmp (var, "rekey"))
		352	conf.rekey = atoi (val);
		353	else if (!strcmp (var, "keepalive"))
		354	conf.keepalive = atoi (val);
		355	else if (!strcmp (var, "mtu"))
		356	conf.mtu = atoi (val);
		357	else if (!strcmp (var, "nfmark"))
		358	conf.nfmark = atoi (val);
		359	else if (!strcmp (var, "seed-device"))
		360	free (conf.seed_dev), conf.seed_dev = strdup (val);
		361	else if (!strcmp (var, "seed-interval"))
		362	conf.reseed = atoi (val);
		363	else if (!strcmp (var, "if-up"))
		364	free (conf.script_if_up), conf.script_if_up = strdup (val);
		365	else if (!strcmp (var, "node-up"))
		366	free (conf.script_node_up), conf.script_node_up = strdup (val);
		367	else if (!strcmp (var, "node-change"))
		368	free (conf.script_node_change), conf.script_node_change = strdup (val);
		369	else if (!strcmp (var, "node-down"))
		370	free (conf.script_node_down), conf.script_node_down = strdup (val);
		371	else if (!strcmp (var, "pid-file"))
		372	free (conf.pidfilename), conf.pidfilename = strdup (val);
		373	else if (!strcmp (var, "dns-forw-host"))
		374	{
		375	#if ENABLE_DNS
		376	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-forw-port"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_forw_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-timeout-factor"))
		386	{
		387	#if ENABLE_DNS
		388	conf.dns_timeout_factor = atof (val);
		389	#endif
		390	}
		391	else if (!strcmp (var, "dns-send-interval"))
		392	{
		393	#if ENABLE_DNS
		394	conf.dns_send_interval = atoi (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "dns-overlap-factor"))
		398	{
		399	#if ENABLE_DNS
		400	conf.dns_overlap_factor = atof (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "dns-max-outstanding"))
		404	{
		405	#if ENABLE_DNS
		406	conf.dns_max_outstanding = atoi (val);
		407	#endif
		408	}
		409	else if (!strcmp (var, "dns-case-preserving"))
		410	{
		411	#if ENABLE_DNS
		412	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		413	#endif
		414	}
		415	else if (!strcmp (var, "http-proxy-host"))
		416	{
		417	#if ENABLE_HTTP_PROXY
		418	free (conf.proxy_host), conf.proxy_host = strdup (val);
		419	#endif
		420	}
		421	else if (!strcmp (var, "http-proxy-port"))
		422	{
		423	#if ENABLE_HTTP_PROXY
		424	conf.proxy_port = atoi (val);
		425	#endif
		426	}
		427	else if (!strcmp (var, "http-proxy-auth"))
		428	{
		429	#if ENABLE_HTTP_PROXY
		430	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		431	#endif
		432	}
		433
		434	/* node-specific, non-defaultable */
		435	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		436	free (node->hostname), node->hostname = strdup (val);
		437
		438	/* node-specific, defaultable */
		439	else if (!strcmp (var, "udp-port"))
		440	node->udp_port = atoi (val);
		441	else if (!strcmp (var, "tcp-port"))
		442	node->tcp_port = atoi (val);
		443	else if (!strcmp (var, "dns-hostname"))
		444	{
		445	#if ENABLE_DNS
		446	free (node->dns_hostname), node->dns_hostname = strdup (val);
		447	#endif
		448	}
		449	else if (!strcmp (var, "dns-port"))
		450	{
		451	#if ENABLE_DNS
		452	node->dns_port = atoi (val);
		453	#endif
		454	}
		455	else if (!strcmp (var, "dns-domain"))
		456	{
		457	#if ENABLE_DNS
		458	free (node->domain), node->domain = strdup (val);
		459	#endif
		460	}
		461	else if (!strcmp (var, "if-up-data"))
		462	free (node->if_up_data), node->if_up_data = strdup (val);
		463	else if (!strcmp (var, "router-priority"))
		464	node->routerprio = atoi (val);
		465	else if (!strcmp (var, "max-retry"))
		466	node->max_retry = atoi (val);
		467	else if (!strcmp (var, "connect"))
		468	{
		469	if (!strcmp (val, "ondemand"))
		470	node->connectmode = conf_node::C_ONDEMAND;
		471	else if (!strcmp (val, "never"))
		472	node->connectmode = conf_node::C_NEVER;
		473	else if (!strcmp (val, "always"))
		474	node->connectmode = conf_node::C_ALWAYS;
		475	else if (!strcmp (val, "disabled"))
		476	node->connectmode = conf_node::C_DISABLED;
		477	else
		478	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		479	}
		480	else if (!strcmp (var, "inherit-tos"))
		481	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		482	else if (!strcmp (var, "compress"))
		483	parse_bool (node->compress, "compress", true, false);
		484	// all these bool options really really cost a lot of executable size!
		485	else if (!strcmp (var, "enable-tcp"))
		486	{
		487	#if ENABLE_TCP
		488	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		489	#endif
		490	}
		491	else if (!strcmp (var, "enable-icmp"))
		492	{
		493	#if ENABLE_ICMP
		494	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		495	#endif
		496	}
		497	else if (!strcmp (var, "enable-dns"))
		498	{
		499	#if ENABLE_DNS
		500	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		501	#endif
		502	}
		503	else if (!strcmp (var, "enable-udp"))
		504	{
		505	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		506	}
		507	else if (!strcmp (var, "enable-rawip"))
		508	{
		509	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		510	}
		511	else if (!strcmp (var, "allow-direct"))
		512	node->allow_direct.push_back (strdup (val));
		513	else if (!strcmp (var, "deny-direct"))
		514	node->deny_direct.push_back (strdup (val));
		515	else if (!strcmp (var, "max-ttl"))
		516	node->max_ttl = atof (val);
		517	else if (!strcmp (var, "max-queue"))
		518	node->max_queue = atoi (val);
		519
		520	// unknown or misplaced
		521	else
		522	return _("unknown configuration directive - ignored");
		523
		524	return 0;
		525	}
		526
		527	void
		528	conf_node::finalise ()
		529	{
		530	if (max_queue < 1)
		531	{
		532	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		533	max_queue = 1;
		534	}
		535
		536	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		537	{
		538	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		539	connectmode = C_ALWAYS;
		540	}
		541	}
		542
		543	void
		544	configuration_parser::parse_argv ()
		545	{
		546	for (int i = 0; i < argc; ++i)
		547	{
		548	char *v = argv [i];
		549
		550	if (!*v)
		551	continue;
		552
		553	char *enode = v;
		554
		555	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		556	enode++;
		557
		558	if (*enode != '.')
		559	enode = 0;
		560
		561	char *wnode = node == &conf.default_node
		562	? 0
		563	: node->nodename;
		564
		565	if ((!wnode && !enode)
		566	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		567	{
		568	const char *warn = parse_line (enode ? enode + 1 : v);
		569
		570	if (warn)
		571	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		572
		573	*v = 0;
		574	}
		575	}
		576	}
		577
		578	void
		579	configuration_parser::parse_file (const char *fname)
		580	{
		581	if (FILE *f = fopen (fname, "r"))
		582	{
112	char line[16384];	583	char line [2048];
113	int lineno = 0;	584	int lineno = 0;
114	char var, val;
115	conf_node *node = &default_node;
116		585
117	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
118	{	587	{
119	lineno++;	588	lineno++;
120		589
121	{	590	const char *warn = parse_line (line);
122	char *end = line + strlen (line);
123		591
124	while (*end < ' ' && end >= line)	592	if (warn)
125	end--;	593	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
126
127	*++end = 0;
128	}
129
130	char *tok = line;
131
132	retry:
133	var = strtok (tok, "\t =");
134	tok = 0;
135
136	if (!var \|\| !var[0])
137	continue; /* no tokens on this line */
138
139	if (var[0] == '#')
140	continue; /* comment: ignore */
141
142	val = strtok (NULL, "\t\n\r =");
143
144	if (!val \|\| val[0] == '#')
145	{
146	slog (L_WARN,
147	_("no value for variable `%s', at '%s' line %d"),
148	var, fname, lineno);
149	break;
150	}
151
152	if (!strcmp (var, "on"))
153	{
154	if (!::thisnode
155	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
156	\|\| !strcmp (val, ::thisnode))
157	goto retry;
158
159	continue;
160	}
161
162	// truly global
163	if (!strcmp (var, "loglevel"))
164	{
165	loglevel l = string_to_loglevel (val);
166
167	if (l != L_NONE)
168	llevel = l;
169	else
170	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
171	}
172
173	// per config
174	else if (!strcmp (var, "node"))
175	{
176	default_node.id++;
177
178	node = new conf_node (default_node);
179
180	nodes.push_back (node);
181
182	node->nodename = strdup (val);
183
184	{
185	char *fname;
186	FILE *f;
187
188	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
189
190	f = fopen (fname, "r");
191	if (f)
192	{
193	node->rsa_key = RSA_new ();
194
195	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
196	{
197	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
198	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
199	exit (1);
200	}
201
202	RSA_blinding_on (node->rsa_key, 0);
203
204	fclose (f);
205	}
206	else
207	{
208	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
209
210	if (need_keys)
211	exit (1);
212	}
213
214	free (fname);
215	}
216
217	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
218	thisnode = node;
219	}
220	else if (!strcmp (var, "private-key"))
221	prikeyfile = strdup (val);
222	else if (!strcmp (var, "ifpersist"))
223	{
224	if (!strcmp (val, "yes"))
225	ifpersist = true;
226	else if (!strcmp (val, "no"))
227	ifpersist = false;
228	else
229	slog (L_WARN,
230	_("illegal value for 'ifpersist', only 'yes' or 'no' allowed, at '%s' line %d"),
231	var, fname, lineno);
232	}
233	else if (!strcmp (var, "ifname"))
234	ifname = strdup (val);
235	else if (!strcmp (var, "rekey"))
236	rekey = atoi (val);
237	else if (!strcmp (var, "keepalive"))
238	keepalive = atoi (val);
239	else if (!strcmp (var, "mtu"))
240	mtu = atoi (val);
241	else if (!strcmp (var, "if-up"))
242	script_if_up = strdup (val);
243	else if (!strcmp (var, "node-up"))
244	script_node_up = strdup (val);
245	else if (!strcmp (var, "node-down"))
246	script_node_down = strdup (val);
247
248	/* node-specific, non-defaultable */
249	else if (node != &default_node && !strcmp (var, "hostname"))
250	{
251	free (node->hostname);
252	node->hostname = strdup (val);
253	}
254
255	/* node-specific, defaultable */
256	else if (!strcmp (var, "port"))
257	node->port = atoi (val);
258	else if (!strcmp (var, "router-priority"))
259	node->routerprio = atoi (val);
260	else if (!strcmp (var, "connect"))
261	{
262	if (!strcmp (val, "ondemand"))
263	node->connectmode = conf_node::C_ONDEMAND;
264	else if (!strcmp (val, "never"))
265	node->connectmode = conf_node::C_NEVER;
266	else if (!strcmp (val, "always"))
267	node->connectmode = conf_node::C_ALWAYS;
268	else
269	slog (L_WARN,
270	_("illegal value for 'connectmode', use one of 'ondemand', 'never' or 'always', at '%s' line %d"),
271	var, fname, lineno);
272	}
273	else if (!strcmp (var, "compress"))
274	{
275	if (!strcmp (val, "yes"))
276	node->compress = true;
277	else if (!strcmp (val, "no"))
278	node->compress = false;
279	else
280	slog (L_WARN,
281	_("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"),
282	var, fname, lineno);
283	}
284
285	// unknown or misplaced
286	else
287	{
288	slog (L_WARN,
289	_("unknown or misplaced variable `%s', at '%s' line %d"),
290	var, fname, lineno);
291	}
292	}	594	}
293		595
294	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
295	}	599	}
296	else	600	else
297	{	601	{
298	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	602	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
299	exit (1);	603	exit (EXIT_FAILURE);
300	}	604	}
		605	}
301		606
		607	configuration_parser::configuration_parser (configuration &conf,
		608	bool need_keys,
		609	int argc,
		610	char **argv)
		611	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		612	{
		613	char *fname;
		614
		615	conf.clear ();
		616	node = &conf.default_node;
		617
		618	asprintf (&fname, "%s/gvpe.conf", confbase);
		619	parse_file (fname);
302	free (fname);	620	free (fname);
303		621
304	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
305		623
306	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
307	if (f)
308	{	625	{
309	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
310		627
311	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
312	{	629	{
313	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
314	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	631	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
315	exit (1);	632	exit (EXIT_FAILURE);
316	}	633	}
317		634
318	RSA_blinding_on (rsa_key, 0);	635	require (RSA_blinding_on (conf.rsa_key, 0));
319		636
320	fclose (f);	637	fclose (f);
321	}	638	}
322	else	639	else
323	{	640	{
324	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	641	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
325		642
326	if (need_keys)	643	if (need_keys)
327	exit (1);	644	exit (EXIT_FAILURE);
328	}	645	}
329		646
330	free (fname);	647	free (fname);
331	}
332		648
		649	if (need_keys && ::thisnode
		650	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		651	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		652	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		653	{
		654	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		655	exit (EXIT_FAILURE);
		656	}
		657
		658	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		659	(*i)->finalise ();
		660	}
		661
		662	char *
333	char configuration::config_filename (const char name, const char *dflt)	663	configuration::config_filename (const char name, const char dflt)
334	{	664	{
335	char *fname;	665	char *fname;
336		666
337	asprintf (&fname, name ? name : dflt, ::thisnode);	667	asprintf (&fname, name ? name : dflt, ::thisnode);
338		668
…		…
342	asprintf (&fname, "%s/%s", confbase, rname);	672	asprintf (&fname, "%s/%s", confbase, rname);
343	free (rname);	673	free (rname);
344	}	674	}
345		675
346	return fname;	676	return fname;
		677	}
		678
		679	void
		680	conf_node::print ()
		681	{
		682	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		683	id,
		684	id >> 8, id & 0xff,
		685	compress ? 'Y' : 'N',
		686	connectmode == C_ONDEMAND ? "ondemand"
		687	: connectmode == C_NEVER ? "never"
		688	: connectmode == C_ALWAYS ? "always"
		689	: connectmode == C_DISABLED ? "disabled"
		690	: "",
		691	nodename,
		692	protocols,
		693	hostname ? hostname : "",
		694	hostname ? ":" : "",
		695	hostname ? udp_port : 0
		696	);
347	}	697	}
348		698
349	void	699	void
350	configuration::print ()	700	configuration::print ()
351	{	701	{
…		…
355	printf (_("MTU: %d\n"), mtu);	705	printf (_("MTU: %d\n"), mtu);
356	printf (_("rekeying interval: %d\n"), rekey);	706	printf (_("rekeying interval: %d\n"), rekey);
357	printf (_("keepalive interval: %d\n"), keepalive);	707	printf (_("keepalive interval: %d\n"), keepalive);
358	printf (_("interface: %s\n"), ifname);	708	printf (_("interface: %s\n"), ifname);
359	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	709	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
360	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	710	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
361	printf ("\n");	711	printf ("\n");
362		712
363	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	713	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
364	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	714	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
365		715
366	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	716	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
367	(*i)->print ();	717	(*i)->print ();
368		718
369	printf ("\n");	719	printf ("\n");
370	}	720	}
371		721
372	void	722	configuration::configuration ()
373	conf_node::print ()
374	{	723	{
375	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	724	asprintf (&confbase, "%s/gvpe", CONFDIR);
376	id,
377	id >> 8, id & 0xff,
378	compress ? 'Y' : 'N',
379	connectmode == C_ONDEMAND ? "ondemand" :
380	connectmode == C_NEVER ? "never" :
381	connectmode == C_ALWAYS ? "always" : "",
382	nodename,
383	hostname ? hostname : "",
384	hostname ? ":" : "",
385	hostname ? port : 0
386	);
387	}
388		725
		726	init ();
		727	}
		728
		729	configuration::~configuration ()
		730	{
		731	cleanup ();
		732	}
		733

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Comparing gvpe/src/conf.C (file contents): Revision 1.2 by pcg, Thu Mar 6 18:43:07 2003 UTC vs. Revision 1.60 by root, Sat Jul 13 04:10:29 2013 UTC

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Comparing gvpe/src/conf.C (file contents):
Revision 1.2 by pcg, Thu Mar 6 18:43:07 2003 UTC vs.
Revision 1.60 by root, Sat Jul 13 04:10:29 2013 UTC