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

Comparing gvpe/src/conf.C (file contents):
Revision 1.8 by pcg, Wed Apr 2 03:25:17 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;
92	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
93	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
94	default_node.compress = true;	147	default_node.compress = true;
95	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
96	}	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 ("");
97		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
98	void configuration::cleanup()	170	configuration::cleanup ()
99	{	171	{
100	if (rsa_key)	172	if (rsa_key)
101	RSA_free (rsa_key);	173	RSA_free (rsa_key);
102		174
103	free (ifname);
104
105	rsa_key = 0;	175	rsa_key = 0;
106	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;
107	}	191	}
108		192
109	void	193	void
110	configuration::clear_config ()	194	configuration::clear ()
111	{	195	{
112	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)
113	delete *i;	197	delete *i;
114		198
115	nodes.clear ();	199	nodes.clear ();
116		200
117	cleanup ();	201	cleanup ();
118	init ();	202	init ();
119	}	203	}
120		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
121	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
122	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
123	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
124	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
125	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
126	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
127	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
128	else \	218	else \
129	slog (L_WARN, \
130	_("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"); \
131	name, var, fname, lineno);	220	} while (0)
132		221
133	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
134	{	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	{
135	char *fname;	307	char *fname;
136	FILE *f;	308	FILE *f;
137		309
138	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
139		311
140	asprintf (&fname, "%s/vped.conf", confbase);
141	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
142		316
143	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;
144	{	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	{
145	char line[16384];	576	char line [2048];
146	int lineno = 0;	577	int lineno = 0;
147	char var, val;
148	conf_node *node = &default_node;
149		578
150	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
151	{	580	{
152	lineno++;	581	lineno++;
153		582
154	{	583	const char *warn = parse_line (line);
155	char *end = line + strlen (line);
156		584
157	while (*end < ' ' && end >= line)	585	if (warn)
158	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
159
160	*++end = 0;
161	}
162
163	char *tok = line;
164
165	retry:
166	var = strtok (tok, "\t =");
167	tok = 0;
168
169	if (!var \|\| !var[0])
170	continue; /* no tokens on this line */
171
172	if (var[0] == '#')
173	continue; /* comment: ignore */
174
175	val = strtok (NULL, "\t\n\r =");
176
177	if (!val \|\| val[0] == '#')
178	{
179	slog (L_WARN,
180	_("no value for variable `%s', at '%s' line %d"),
181	var, fname, lineno);
182	break;
183	}
184
185	if (!strcmp (var, "on"))
186	{
187	if (!::thisnode
188	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
189	\|\| !strcmp (val, ::thisnode))
190	goto retry;
191
192	continue;
193	}
194
195	// truly global
196	if (!strcmp (var, "loglevel"))
197	{
198	loglevel l = string_to_loglevel (val);
199
200	if (l != L_NONE)
201	llevel = l;
202	else
203	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
204	}
205	else if (!strcmp (var, "ip-proto"))
206	ip_proto = atoi (val);
207
208	// per config
209	else if (!strcmp (var, "node"))
210	{
211	default_node.id++;
212
213	node = new conf_node (default_node);
214
215	nodes.push_back (node);
216
217	node->nodename = strdup (val);
218
219	{
220	char *fname;
221	FILE *f;
222
223	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
224
225	f = fopen (fname, "r");
226	if (f)
227	{
228	node->rsa_key = RSA_new ();
229
230	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
231	{
232	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
233	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
234	exit (1);
235	}
236
237	RSA_blinding_on (node->rsa_key, 0);
238
239	fclose (f);
240	}
241	else
242	{
243	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
244
245	if (need_keys)
246	exit (1);
247	}
248
249	free (fname);
250	}
251
252	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
253	thisnode = node;
254	}
255	else if (!strcmp (var, "private-key"))
256	prikeyfile = strdup (val);
257	else if (!strcmp (var, "ifpersist"))
258	{
259	parse_bool (ifpersist, "ifpersist", true, false);
260	}
261	else if (!strcmp (var, "ifname"))
262	ifname = strdup (val);
263	else if (!strcmp (var, "rekey"))
264	rekey = atoi (val);
265	else if (!strcmp (var, "keepalive"))
266	keepalive = atoi (val);
267	else if (!strcmp (var, "mtu"))
268	mtu = atoi (val);
269	else if (!strcmp (var, "if-up"))
270	script_if_up = strdup (val);
271	else if (!strcmp (var, "node-up"))
272	script_node_up = strdup (val);
273	else if (!strcmp (var, "node-down"))
274	script_node_down = strdup (val);
275
276	/* node-specific, non-defaultable */
277	else if (node != &default_node && !strcmp (var, "hostname"))
278	{
279	free (node->hostname);
280	node->hostname = strdup (val);
281	}
282
283	/* node-specific, defaultable */
284	else if (!strcmp (var, "udp-port"))
285	node->udp_port = atoi (val);
286	else if (!strcmp (var, "tcp-port"))
287	node->tcp_port = atoi (val);
288	else if (!strcmp (var, "router-priority"))
289	node->routerprio = atoi (val);
290	else if (!strcmp (var, "connect"))
291	{
292	if (!strcmp (val, "ondemand"))
293	node->connectmode = conf_node::C_ONDEMAND;
294	else if (!strcmp (val, "never"))
295	node->connectmode = conf_node::C_NEVER;
296	else if (!strcmp (val, "always"))
297	node->connectmode = conf_node::C_ALWAYS;
298	else if (!strcmp (val, "disabled"))
299	node->connectmode = conf_node::C_DISABLED;
300	else
301	slog (L_WARN,
302	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
303	var, fname, lineno);
304	}
305	else if (!strcmp (var, "inherit-tos"))
306	{
307	parse_bool (node->inherit_tos, "inherit-tos", true, false);
308	}
309	else if (!strcmp (var, "compress"))
310	{
311	parse_bool (node->compress, "compress", true, false);
312	}
313	// all these bool options really really cost a lot of executable size!
314	else if (!strcmp (var, "enable-tcp"))
315	{
316	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
317	}
318	else if (!strcmp (var, "enable-udp"))
319	{
320	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
321	}
322	else if (!strcmp (var, "enable-rawip"))
323	{
324	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
325	}
326
327	// unknown or misplaced
328	else
329	{
330	slog (L_WARN,
331	_("unknown or misplaced variable `%s', at '%s' line %d"),
332	var, fname, lineno);
333	}
334	}	587	}
335		588
336	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
337	}	592	}
338	else	593	else
339	{	594	{
340	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));
341	exit (1);	596	exit (EXIT_FAILURE);
342	}	597	}
		598	}
343		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);
344	free (fname);	613	free (fname);
345		614
346	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
347		616
348	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
349	if (f)
350	{	618	{
351	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
352		620
353	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
354	{	622	{
355	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
356	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));
357	exit (1);	625	exit (EXIT_FAILURE);
358	}	626	}
359		627
360	RSA_blinding_on (rsa_key, 0);	628	require (RSA_blinding_on (conf.rsa_key, 0));
361		629
362	fclose (f);	630	fclose (f);
363	}	631	}
364	else	632	else
365	{	633	{
366	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));
367		635
368	if (need_keys)	636	if (need_keys)
369	exit (1);	637	exit (EXIT_FAILURE);
370	}	638	}
371		639
372	free (fname);	640	free (fname);
373	}
374		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 *
375	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
376	{	657	{
377	char *fname;	658	char *fname;
378		659
379	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
380		661
…		…
384	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
385	free (rname);	666	free (rname);
386	}	667	}
387		668
388	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	);
389	}	690	}
390		691
391	void	692	void
392	configuration::print ()	693	configuration::print ()
393	{	694	{
…		…
397	printf (_("MTU: %d\n"), mtu);	698	printf (_("MTU: %d\n"), mtu);
398	printf (_("rekeying interval: %d\n"), rekey);	699	printf (_("rekeying interval: %d\n"), rekey);
399	printf (_("keepalive interval: %d\n"), keepalive);	700	printf (_("keepalive interval: %d\n"), keepalive);
400	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
401	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
402	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);
403	printf ("\n");	704	printf ("\n");
404		705
405	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
406	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
407		708
408	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
409	(*i)->print ();	710	(*i)->print ();
410		711
411	printf ("\n");	712	printf ("\n");
412	}	713	}
413		714
414	void	715	configuration::configuration ()
415	conf_node::print ()
416	{	716	{
417	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	717	asprintf (&confbase, "%s/gvpe", CONFDIR);
418	id,
419	id >> 8, id & 0xff,
420	compress ? 'Y' : 'N',
421	connectmode == C_ONDEMAND ? "ondemand" :
422	connectmode == C_NEVER ? "never" :
423	connectmode == C_ALWAYS ? "always" : "",
424	nodename,
425	hostname ? hostname : "",
426	hostname ? ":" : "",
427	hostname ? udp_port : 0
428	);
429	}
430		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 1.8 by pcg, Wed Apr 2 03:25:17 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 1.8 by pcg, Wed Apr 2 03:25:17 2003 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC