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

Comparing gvpe/src/conf.C (file contents):
Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 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>
35		44
36	#include <netinet/in.h>	45	#include "netcompat.h"
37		46
38	#include <openssl/err.h>	47	#include <openssl/err.h>
39	#include <openssl/pem.h>	48	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	50	#include <openssl/rand.h>
42		51	#include <openssl/bn.h>
43	#include "gettext.h"
44		52
45	#include "conf.h"	53	#include "conf.h"
46	#include "slog.h"	54	#include "slog.h"
47	#include "util.h"	55	#include "util.h"
48		56
49	char *confbase;	57	char *confbase;
50	char *thisnode;	58	char *thisnode;
51	char *identname;	59	char *identname;
52	char *pidfilename;
53		60
54	struct configuration conf;	61	struct configuration conf;
55		62
		63	u8
56	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
57	{	65	{
58	if (protset & PROT_IPv4)	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	return PROT_IPv4;	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;
60		71
61	return PROT_UDPv4;	72	return 0;
62	}	73	}
63		74
		75	const char *
64	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
65	{	77	{
66	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
		79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
		81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
68		83
69	return "<unknown>";	84	return "<unknown>";
70	}	85	}
71		86
72	configuration::configuration ()	87	static bool
		88	match_list (const vector<const char > &list, const char str)
73	{	89	{
74	init ();	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
75	}	91	if ((i)[0] == '' && !(*i)[1])
		92	return true;
		93	else if (!strcmp (*i, str))
		94	return true;
76		95
77	configuration::~configuration ()	96	return false;
78	{
79	cleanup ();
80	}	97	}
81		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
82	void configuration::init ()	130	configuration::init ()
83	{	131	{
84	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
85		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
86	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
87	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
88	llevel = L_INFO;	138	llevel = L_INFO;
89	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
90		143
91	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
		145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
92	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
93	default_node.compress = true;	147	default_node.compress = true;
94	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
95	}	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 ("");
96		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	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	}
		168
		169	void
97	void configuration::cleanup()	170	configuration::cleanup ()
98	{	171	{
99	if (rsa_key)	172	if (rsa_key)
100	RSA_free (rsa_key);	173	RSA_free (rsa_key);
101		174
102	free (ifname);
103
104	rsa_key = 0;	175	rsa_key = 0;
105	ifname = 0;	176
		177	free (pidfilename); pidfilename = 0;
		178	free (ifname); ifname = 0;
		179	#if ENABLE_HTTP_PROXY
		180	free (proxy_host); proxy_host = 0;
		181	free (proxy_auth); proxy_auth = 0;
		182	#endif
		183	#if ENABLE_DNS
		184	free (dns_forw_host); dns_forw_host = 0;
		185	#endif
		186	free (change_root); change_root = 0;
		187	free (script_if_up); script_if_up = 0;
		188	free (script_node_up); script_node_up = 0;
		189	free (script_node_change); script_node_change = 0;
		190	free (script_node_down); script_node_down = 0;
106	}	191	}
107		192
108	void	193	void
109	configuration::clear_config ()	194	configuration::clear ()
110	{	195	{
111	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	196	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
112	delete *i;	197	delete *i;
113		198
114	nodes.clear ();	199	nodes.clear ();
115		200
116	cleanup ();	201	cleanup ();
117	init ();	202	init ();
118	}	203	}
119		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
120	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
121	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
122	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
123	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
124	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
125	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
126	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
127	else \	218	else \
128	slog (L_WARN, \
129	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	219	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
130	name, var, fname, lineno);	220	} while (0)
131		221
132	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
133	{	224	{
		225	{
		226	char *end = line + strlen (line);
		227
		228	while (*end < ' ' && end >= line)
		229	end--;
		230
		231	*++end = 0;
		232	}
		233
		234	char *tok = line;
		235	const char *var = strtok (tok, "\t =");
		236	tok = 0;
		237
		238	if (!var \|\| !var[0])
		239	return 0; /* no tokens on this line */
		240
		241	if (var[0] == '#')
		242	return 0; /* comment: ignore */
		243
		244	char *val = strtok (NULL, "\t\n\r =");
		245
		246	if (!val \|\| val[0] == '#')
		247	return _("no value given for variable, ignored");
		248
		249	else if (!strcmp (var, "on"))
		250	{
		251	if (::thisnode
		252	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		253	\|\| !strcmp (val, ::thisnode)))
		254	return parse_line (strtok (NULL, "\n\r"));
		255	}
		256
		257	else if (!strcmp (var, "include"))
		258	{
		259	char *fname = conf.config_filename (val);
		260	parse_file (fname);
		261	free (fname);
		262	}
		263
		264	// truly global
		265	else if (!strcmp (var, "loglevel"))
		266	{
		267	loglevel l = string_to_loglevel (val);
		268
		269	if (l == L_NONE)
		270	return _("unknown loglevel, ignored");
		271	}
		272	else if (!strcmp (var, "ip-proto"))
		273	conf.ip_proto = atoi (val);
		274	else if (!strcmp (var, "icmp-type"))
		275	{
		276	#if ENABLE_ICMP
		277	conf.icmp_type = atoi (val);
		278	#endif
		279	}
		280	else if (!strcmp (var, "chuser"))
		281	{
		282	struct passwd *pw = getpwnam (val);
		283	if (!pw)
		284	return _("user specified for chuser not found");
		285
		286	conf.change_uid = pw->pw_uid;
		287	conf.change_gid = pw->pw_gid;
		288	}
		289	else if (!strcmp (var, "chuid"))
		290	conf.change_uid = atoi (val);
		291	else if (!strcmp (var, "chgid"))
		292	conf.change_gid = atoi (val);
		293	else if (!strcmp (var, "chroot"))
		294	free (conf.change_root), conf.change_root = strdup (val);
		295
		296	// per node
		297	else if (!strcmp (var, "node"))
		298	{
		299	parse_argv ();
		300
		301	conf.default_node.id++;
		302	node = new conf_node (conf.default_node);
		303	conf.nodes.push_back (node);
		304	node->nodename = strdup (val);
		305
		306	{
134	char *fname;	307	char *fname;
135	FILE *f;	308	FILE *f;
136		309
137	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
138		311
139	asprintf (&fname, "%s/vped.conf", confbase);
140	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
141		316
142	if (f)	317	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		318	{
		319	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		320	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		321	exit (EXIT_FAILURE);
		322	}
		323
		324	require (RSA_blinding_on (node->rsa_key, 0));
		325
		326	fclose (f);
		327	}
		328	else
		329	{
		330	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		331
		332	if (need_keys)
		333	exit (EXIT_FAILURE);
		334	}
		335
		336	free (fname);
		337	}
		338
		339	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		340	conf.thisnode = node;
143	{	341	}
		342	else if (!strcmp (var, "private-key"))
		343	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		344	else if (!strcmp (var, "ifpersist"))
		345	parse_bool (conf.ifpersist, "ifpersist", true, false);
		346	else if (!strcmp (var, "ifname"))
		347	free (conf.ifname), conf.ifname = strdup (val);
		348	else if (!strcmp (var, "rekey"))
		349	conf.rekey = atoi (val);
		350	else if (!strcmp (var, "keepalive"))
		351	conf.keepalive = atoi (val);
		352	else if (!strcmp (var, "mtu"))
		353	conf.mtu = atoi (val);
		354	else if (!strcmp (var, "nfmark"))
		355	conf.nfmark = atoi (val);
		356	else if (!strcmp (var, "if-up"))
		357	free (conf.script_if_up), conf.script_if_up = strdup (val);
		358	else if (!strcmp (var, "node-up"))
		359	free (conf.script_node_up), conf.script_node_up = strdup (val);
		360	else if (!strcmp (var, "node-change"))
		361	free (conf.script_node_change), conf.script_node_change = strdup (val);
		362	else if (!strcmp (var, "node-down"))
		363	free (conf.script_node_down), conf.script_node_down = strdup (val);
		364	else if (!strcmp (var, "pid-file"))
		365	free (conf.pidfilename), conf.pidfilename = strdup (val);
		366	else if (!strcmp (var, "dns-forw-host"))
		367	{
		368	#if ENABLE_DNS
		369	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		370	#endif
		371	}
		372	else if (!strcmp (var, "dns-forw-port"))
		373	{
		374	#if ENABLE_DNS
		375	conf.dns_forw_port = atoi (val);
		376	#endif
		377	}
		378	else if (!strcmp (var, "dns-timeout-factor"))
		379	{
		380	#if ENABLE_DNS
		381	conf.dns_timeout_factor = atof (val);
		382	#endif
		383	}
		384	else if (!strcmp (var, "dns-send-interval"))
		385	{
		386	#if ENABLE_DNS
		387	conf.dns_send_interval = atoi (val);
		388	#endif
		389	}
		390	else if (!strcmp (var, "dns-overlap-factor"))
		391	{
		392	#if ENABLE_DNS
		393	conf.dns_overlap_factor = atof (val);
		394	#endif
		395	}
		396	else if (!strcmp (var, "dns-max-outstanding"))
		397	{
		398	#if ENABLE_DNS
		399	conf.dns_max_outstanding = atoi (val);
		400	#endif
		401	}
		402	else if (!strcmp (var, "dns-case-preserving"))
		403	{
		404	#if ENABLE_DNS
		405	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		406	#endif
		407	}
		408	else if (!strcmp (var, "http-proxy-host"))
		409	{
		410	#if ENABLE_HTTP_PROXY
		411	free (conf.proxy_host), conf.proxy_host = strdup (val);
		412	#endif
		413	}
		414	else if (!strcmp (var, "http-proxy-port"))
		415	{
		416	#if ENABLE_HTTP_PROXY
		417	conf.proxy_port = atoi (val);
		418	#endif
		419	}
		420	else if (!strcmp (var, "http-proxy-auth"))
		421	{
		422	#if ENABLE_HTTP_PROXY
		423	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		424	#endif
		425	}
		426
		427	/* node-specific, non-defaultable */
		428	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		429	free (node->hostname), node->hostname = strdup (val);
		430
		431	/* node-specific, defaultable */
		432	else if (!strcmp (var, "udp-port"))
		433	node->udp_port = atoi (val);
		434	else if (!strcmp (var, "tcp-port"))
		435	node->tcp_port = atoi (val);
		436	else if (!strcmp (var, "dns-hostname"))
		437	{
		438	#if ENABLE_DNS
		439	free (node->dns_hostname), node->dns_hostname = strdup (val);
		440	#endif
		441	}
		442	else if (!strcmp (var, "dns-port"))
		443	{
		444	#if ENABLE_DNS
		445	node->dns_port = atoi (val);
		446	#endif
		447	}
		448	else if (!strcmp (var, "dns-domain"))
		449	{
		450	#if ENABLE_DNS
		451	free (node->domain), node->domain = strdup (val);
		452	#endif
		453	}
		454	else if (!strcmp (var, "if-up-data"))
		455	free (node->if_up_data), node->if_up_data = strdup (val);
		456	else if (!strcmp (var, "router-priority"))
		457	node->routerprio = atoi (val);
		458	else if (!strcmp (var, "max-retry"))
		459	node->max_retry = atoi (val);
		460	else if (!strcmp (var, "connect"))
		461	{
		462	if (!strcmp (val, "ondemand"))
		463	node->connectmode = conf_node::C_ONDEMAND;
		464	else if (!strcmp (val, "never"))
		465	node->connectmode = conf_node::C_NEVER;
		466	else if (!strcmp (val, "always"))
		467	node->connectmode = conf_node::C_ALWAYS;
		468	else if (!strcmp (val, "disabled"))
		469	node->connectmode = conf_node::C_DISABLED;
		470	else
		471	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		472	}
		473	else if (!strcmp (var, "inherit-tos"))
		474	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		475	else if (!strcmp (var, "compress"))
		476	parse_bool (node->compress, "compress", true, false);
		477	// all these bool options really really cost a lot of executable size!
		478	else if (!strcmp (var, "enable-tcp"))
		479	{
		480	#if ENABLE_TCP
		481	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		482	#endif
		483	}
		484	else if (!strcmp (var, "enable-icmp"))
		485	{
		486	#if ENABLE_ICMP
		487	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		488	#endif
		489	}
		490	else if (!strcmp (var, "enable-dns"))
		491	{
		492	#if ENABLE_DNS
		493	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		494	#endif
		495	}
		496	else if (!strcmp (var, "enable-udp"))
		497	{
		498	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		499	}
		500	else if (!strcmp (var, "enable-rawip"))
		501	{
		502	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		503	}
		504	else if (!strcmp (var, "allow-direct"))
		505	node->allow_direct.push_back (strdup (val));
		506	else if (!strcmp (var, "deny-direct"))
		507	node->deny_direct.push_back (strdup (val));
		508	else if (!strcmp (var, "max-ttl"))
		509	node->max_ttl = atof (val);
		510	else if (!strcmp (var, "max-queue"))
		511	node->max_queue = atoi (val);
		512
		513	// unknown or misplaced
		514	else
		515	return _("unknown configuration directive - ignored");
		516
		517	return 0;
		518	}
		519
		520	void
		521	conf_node::finalise ()
		522	{
		523	if (max_queue < 1)
		524	{
		525	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		526	max_queue = 1;
		527	}
		528
		529	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		530	{
		531	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		532	connectmode = C_ALWAYS;
		533	}
		534	}
		535
		536	void
		537	configuration_parser::parse_argv ()
		538	{
		539	for (int i = 0; i < argc; ++i)
		540	{
		541	char *v = argv [i];
		542
		543	if (!*v)
		544	continue;
		545
		546	char *enode = v;
		547
		548	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		549	enode++;
		550
		551	if (*enode != '.')
		552	enode = 0;
		553
		554	char *wnode = node == &conf.default_node
		555	? 0
		556	: node->nodename;
		557
		558	if ((!wnode && !enode)
		559	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		560	{
		561	const char *warn = parse_line (enode ? enode + 1 : v);
		562
		563	if (warn)
		564	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		565
		566	*v = 0;
		567	}
		568	}
		569	}
		570
		571	void
		572	configuration_parser::parse_file (const char *fname)
		573	{
		574	if (FILE *f = fopen (fname, "r"))
		575	{
144	char line[16384];	576	char line [2048];
145	int lineno = 0;	577	int lineno = 0;
146	char var, val;
147	conf_node *node = &default_node;
148		578
149	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
150	{	580	{
151	lineno++;	581	lineno++;
152		582
153	{	583	const char *warn = parse_line (line);
154	char *end = line + strlen (line);
155		584
156	while (*end < ' ' && end >= line)	585	if (warn)
157	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
158
159	*++end = 0;
160	}
161
162	char *tok = line;
163
164	retry:
165	var = strtok (tok, "\t =");
166	tok = 0;
167
168	if (!var \|\| !var[0])
169	continue; /* no tokens on this line */
170
171	if (var[0] == '#')
172	continue; /* comment: ignore */
173
174	val = strtok (NULL, "\t\n\r =");
175
176	if (!val \|\| val[0] == '#')
177	{
178	slog (L_WARN,
179	_("no value for variable `%s', at '%s' line %d"),
180	var, fname, lineno);
181	break;
182	}
183
184	if (!strcmp (var, "on"))
185	{
186	if (!::thisnode
187	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
188	\|\| !strcmp (val, ::thisnode))
189	goto retry;
190
191	continue;
192	}
193
194	// truly global
195	if (!strcmp (var, "loglevel"))
196	{
197	loglevel l = string_to_loglevel (val);
198
199	if (l != L_NONE)
200	llevel = l;
201	else
202	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
203	}
204	else if (!strcmp (var, "ip-proto"))
205	ip_proto = atoi (val);
206
207	// per config
208	else if (!strcmp (var, "node"))
209	{
210	default_node.id++;
211
212	node = new conf_node (default_node);
213
214	nodes.push_back (node);
215
216	node->nodename = strdup (val);
217
218	{
219	char *fname;
220	FILE *f;
221
222	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
223
224	f = fopen (fname, "r");
225	if (f)
226	{
227	node->rsa_key = RSA_new ();
228
229	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
230	{
231	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
232	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
233	exit (1);
234	}
235
236	RSA_blinding_on (node->rsa_key, 0);
237
238	fclose (f);
239	}
240	else
241	{
242	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
243
244	if (need_keys)
245	exit (1);
246	}
247
248	free (fname);
249	}
250
251	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
252	thisnode = node;
253	}
254	else if (!strcmp (var, "private-key"))
255	prikeyfile = strdup (val);
256	else if (!strcmp (var, "ifpersist"))
257	{
258	parse_bool (ifpersist, "ifpersist", true, false);
259	}
260	else if (!strcmp (var, "ifname"))
261	ifname = strdup (val);
262	else if (!strcmp (var, "rekey"))
263	rekey = atoi (val);
264	else if (!strcmp (var, "keepalive"))
265	keepalive = atoi (val);
266	else if (!strcmp (var, "mtu"))
267	mtu = atoi (val);
268	else if (!strcmp (var, "if-up"))
269	script_if_up = strdup (val);
270	else if (!strcmp (var, "node-up"))
271	script_node_up = strdup (val);
272	else if (!strcmp (var, "node-down"))
273	script_node_down = strdup (val);
274
275	/* node-specific, non-defaultable */
276	else if (node != &default_node && !strcmp (var, "hostname"))
277	{
278	free (node->hostname);
279	node->hostname = strdup (val);
280	}
281
282	/* node-specific, defaultable */
283	else if (!strcmp (var, "udp-port"))
284	node->udp_port = atoi (val);
285	else if (!strcmp (var, "router-priority"))
286	node->routerprio = atoi (val);
287	else if (!strcmp (var, "connect"))
288	{
289	if (!strcmp (val, "ondemand"))
290	node->connectmode = conf_node::C_ONDEMAND;
291	else if (!strcmp (val, "never"))
292	node->connectmode = conf_node::C_NEVER;
293	else if (!strcmp (val, "always"))
294	node->connectmode = conf_node::C_ALWAYS;
295	else if (!strcmp (val, "disabled"))
296	node->connectmode = conf_node::C_DISABLED;
297	else
298	slog (L_WARN,
299	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
300	var, fname, lineno);
301	}
302	else if (!strcmp (var, "inherit-tos"))
303	{
304	parse_bool (node->inherit_tos, "inherit-tos", true, false);
305	}
306	else if (!strcmp (var, "compress"))
307	{
308	parse_bool (node->compress, "compress", true, false);
309	}
310	// all these bool options really really cost a lot of executable size!
311	else if (!strcmp (var, "enable-udp"))
312	{
313	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
314	}
315	else if (!strcmp (var, "enable-rawip"))
316	{
317	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
318	}
319
320	// unknown or misplaced
321	else
322	{
323	slog (L_WARN,
324	_("unknown or misplaced variable `%s', at '%s' line %d"),
325	var, fname, lineno);
326	}
327	}	587	}
328		588
329	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
330	}	592	}
331	else	593	else
332	{	594	{
333	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	595	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
334	exit (1);	596	exit (EXIT_FAILURE);
335	}	597	}
		598	}
336		599
		600	configuration_parser::configuration_parser (configuration &conf,
		601	bool need_keys,
		602	int argc,
		603	char **argv)
		604	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		605	{
		606	char *fname;
		607
		608	conf.clear ();
		609	node = &conf.default_node;
		610
		611	asprintf (&fname, "%s/gvpe.conf", confbase);
		612	parse_file (fname);
337	free (fname);	613	free (fname);
338		614
339	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
340		616
341	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
342	if (f)
343	{	618	{
344	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
345		620
346	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
347	{	622	{
348	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
349	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	624	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
350	exit (1);	625	exit (EXIT_FAILURE);
351	}	626	}
352		627
353	RSA_blinding_on (rsa_key, 0);	628	require (RSA_blinding_on (conf.rsa_key, 0));
354		629
355	fclose (f);	630	fclose (f);
356	}	631	}
357	else	632	else
358	{	633	{
359	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	634	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
360		635
361	if (need_keys)	636	if (need_keys)
362	exit (1);	637	exit (EXIT_FAILURE);
363	}	638	}
364		639
365	free (fname);	640	free (fname);
366	}
367		641
		642	if (need_keys && ::thisnode
		643	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		644	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		645	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		646	{
		647	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		648	exit (EXIT_FAILURE);
		649	}
		650
		651	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		652	(*i)->finalise ();
		653	}
		654
		655	char *
368	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
369	{	657	{
370	char *fname;	658	char *fname;
371		659
372	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
373		661
…		…
377	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
378	free (rname);	666	free (rname);
379	}	667	}
380		668
381	return fname;	669	return fname;
		670	}
		671
		672	void
		673	conf_node::print ()
		674	{
		675	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		676	id,
		677	id >> 8, id & 0xff,
		678	compress ? 'Y' : 'N',
		679	connectmode == C_ONDEMAND ? "ondemand"
		680	: connectmode == C_NEVER ? "never"
		681	: connectmode == C_ALWAYS ? "always"
		682	: connectmode == C_DISABLED ? "disabled"
		683	: "",
		684	nodename,
		685	protocols,
		686	hostname ? hostname : "",
		687	hostname ? ":" : "",
		688	hostname ? udp_port : 0
		689	);
382	}	690	}
383		691
384	void	692	void
385	configuration::print ()	693	configuration::print ()
386	{	694	{
…		…
390	printf (_("MTU: %d\n"), mtu);	698	printf (_("MTU: %d\n"), mtu);
391	printf (_("rekeying interval: %d\n"), rekey);	699	printf (_("rekeying interval: %d\n"), rekey);
392	printf (_("keepalive interval: %d\n"), keepalive);	700	printf (_("keepalive interval: %d\n"), keepalive);
393	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
394	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
395	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	703	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
396	printf ("\n");	704	printf ("\n");
397		705
398	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
399	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
400		708
401	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
402	(*i)->print ();	710	(*i)->print ();
403		711
404	printf ("\n");	712	printf ("\n");
405	}	713	}
406		714
407	void	715	configuration::configuration ()
408	conf_node::print ()
409	{	716	{
410	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	717	asprintf (&confbase, "%s/gvpe", CONFDIR);
411	id,
412	id >> 8, id & 0xff,
413	compress ? 'Y' : 'N',
414	connectmode == C_ONDEMAND ? "ondemand" :
415	connectmode == C_NEVER ? "never" :
416	connectmode == C_ALWAYS ? "always" : "",
417	nodename,
418	hostname ? hostname : "",
419	hostname ? ":" : "",
420	hostname ? udp_port : 0
421	);
422	}
423		718
		719	init ();
		720	}
		721
		722	configuration::~configuration ()
		723	{
		724	cleanup ();
		725	}
		726

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Comparing gvpe/src/conf.C (file contents): Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs. Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC