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

Comparing gvpe/src/conf.C (file contents):
Revision 1.6 by pcg, Fri Mar 28 16:14:40 2003 UTC vs.
Revision 1.59 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
56	configuration::configuration ()	63	u8
		64	best_protocol (u8 protset)
57	{	65	{
58	init ();	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	}	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	configuration::~configuration ()	72	return 0;
62	{
63	cleanup ();
64	}	73	}
65		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
66	void configuration::init ()	130	configuration::init ()
67	{	131	{
68	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
69		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
70	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
71	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
72	llevel = L_INFO;	138	llevel = L_INFO;
73	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
74		143
75	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
		145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
76	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
77	default_node.compress = true;	147	default_node.compress = true;
78	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
79	}	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 ("");
80		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
81	void configuration::cleanup()	170	configuration::cleanup ()
82	{	171	{
83	if (rsa_key)	172	if (rsa_key)
84	RSA_free (rsa_key);	173	RSA_free (rsa_key);
85		174
86	free (ifname);
87
88	rsa_key = 0;	175	rsa_key = 0;
89	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;
90	}	191	}
91		192
92	void	193	void
93	configuration::clear_config ()	194	configuration::clear ()
94	{	195	{
95	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)
96	delete *i;	197	delete *i;
97		198
98	nodes.clear ();	199	nodes.clear ();
99		200
100	cleanup ();	201	cleanup ();
101	init ();	202	init ();
102	}	203	}
103		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
104	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
105	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
106	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
107	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
108	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
109	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
110	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
111	else \	218	else \
112	slog (L_WARN, \
113	_("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"); \
114	name, var, fname, lineno);	220	} while (0)
115		221
116	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
117	{	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	{
118	char *fname;	307	char *fname;
119	FILE *f;	308	FILE *f;
120		309
121	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
122		311
123	asprintf (&fname, "%s/vped.conf", confbase);
124	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
125		316
126	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;
127	{	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	{
128	char line[16384];	576	char line [2048];
129	int lineno = 0;	577	int lineno = 0;
130	char var, val;
131	conf_node *node = &default_node;
132		578
133	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
134	{	580	{
135	lineno++;	581	lineno++;
136		582
137	{	583	const char *warn = parse_line (line);
138	char *end = line + strlen (line);
139		584
140	while (*end < ' ' && end >= line)	585	if (warn)
141	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
142
143	*++end = 0;
144	}
145
146	char *tok = line;
147
148	retry:
149	var = strtok (tok, "\t =");
150	tok = 0;
151
152	if (!var \|\| !var[0])
153	continue; /* no tokens on this line */
154
155	if (var[0] == '#')
156	continue; /* comment: ignore */
157
158	val = strtok (NULL, "\t\n\r =");
159
160	if (!val \|\| val[0] == '#')
161	{
162	slog (L_WARN,
163	_("no value for variable `%s', at '%s' line %d"),
164	var, fname, lineno);
165	break;
166	}
167
168	if (!strcmp (var, "on"))
169	{
170	if (!::thisnode
171	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
172	\|\| !strcmp (val, ::thisnode))
173	goto retry;
174
175	continue;
176	}
177
178	// truly global
179	if (!strcmp (var, "loglevel"))
180	{
181	loglevel l = string_to_loglevel (val);
182
183	if (l != L_NONE)
184	llevel = l;
185	else
186	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
187	}
188	else if (!strcmp (var, "ip-proto"))
189	ip_proto = atoi (val);
190
191	// per config
192	else if (!strcmp (var, "node"))
193	{
194	default_node.id++;
195
196	node = new conf_node (default_node);
197
198	nodes.push_back (node);
199
200	node->nodename = strdup (val);
201
202	{
203	char *fname;
204	FILE *f;
205
206	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
207
208	f = fopen (fname, "r");
209	if (f)
210	{
211	node->rsa_key = RSA_new ();
212
213	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
214	{
215	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
216	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
217	exit (1);
218	}
219
220	RSA_blinding_on (node->rsa_key, 0);
221
222	fclose (f);
223	}
224	else
225	{
226	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
227
228	if (need_keys)
229	exit (1);
230	}
231
232	free (fname);
233	}
234
235	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
236	thisnode = node;
237	}
238	else if (!strcmp (var, "private-key"))
239	prikeyfile = strdup (val);
240	else if (!strcmp (var, "ifpersist"))
241	{
242	parse_bool (ifpersist, "ifpersist", true, false);
243	}
244	else if (!strcmp (var, "ifname"))
245	ifname = strdup (val);
246	else if (!strcmp (var, "rekey"))
247	rekey = atoi (val);
248	else if (!strcmp (var, "keepalive"))
249	keepalive = atoi (val);
250	else if (!strcmp (var, "mtu"))
251	mtu = atoi (val);
252	else if (!strcmp (var, "if-up"))
253	script_if_up = strdup (val);
254	else if (!strcmp (var, "node-up"))
255	script_node_up = strdup (val);
256	else if (!strcmp (var, "node-down"))
257	script_node_down = strdup (val);
258
259	/* node-specific, non-defaultable */
260	else if (node != &default_node && !strcmp (var, "hostname"))
261	{
262	free (node->hostname);
263	node->hostname = strdup (val);
264	}
265
266	/* node-specific, defaultable */
267	else if (!strcmp (var, "udp-port"))
268	node->udp_port = atoi (val);
269	else if (!strcmp (var, "router-priority"))
270	node->routerprio = atoi (val);
271	else if (!strcmp (var, "connect"))
272	{
273	if (!strcmp (val, "ondemand"))
274	node->connectmode = conf_node::C_ONDEMAND;
275	else if (!strcmp (val, "never"))
276	node->connectmode = conf_node::C_NEVER;
277	else if (!strcmp (val, "always"))
278	node->connectmode = conf_node::C_ALWAYS;
279	else if (!strcmp (val, "disabled"))
280	node->connectmode = conf_node::C_DISABLED;
281	else
282	slog (L_WARN,
283	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
284	var, fname, lineno);
285	}
286	else if (!strcmp (var, "inherit-tos"))
287	{
288	parse_bool (node->inherit_tos, "inherit-tos", true, false);
289	}
290	else if (!strcmp (var, "compress"))
291	{
292	parse_bool (node->compress, "compress", true, false);
293	}
294	// all these bool options really really cost a lot of executable size!
295	else if (!strcmp (var, "enable-udp"))
296	{
297	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
298	}
299	else if (!strcmp (var, "enable-rawip"))
300	{
301	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
302	}
303
304	// unknown or misplaced
305	else
306	{
307	slog (L_WARN,
308	_("unknown or misplaced variable `%s', at '%s' line %d"),
309	var, fname, lineno);
310	}
311	}	587	}
312		588
313	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
314	}	592	}
315	else	593	else
316	{	594	{
317	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));
318	exit (1);	596	exit (EXIT_FAILURE);
319	}	597	}
		598	}
320		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);
321	free (fname);	613	free (fname);
322		614
323	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
324		616
325	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
326	if (f)
327	{	618	{
328	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
329		620
330	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
331	{	622	{
332	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
333	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	624	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
334	exit (1);	625	exit (EXIT_FAILURE);
335	}	626	}
336		627
337	RSA_blinding_on (rsa_key, 0);	628	require (RSA_blinding_on (conf.rsa_key, 0));
338		629
339	fclose (f);	630	fclose (f);
340	}	631	}
341	else	632	else
342	{	633	{
343	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));
344		635
345	if (need_keys)	636	if (need_keys)
346	exit (1);	637	exit (EXIT_FAILURE);
347	}	638	}
348		639
349	free (fname);	640	free (fname);
350	}
351		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 *
352	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
353	{	657	{
354	char *fname;	658	char *fname;
355		659
356	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
357		661
…		…
361	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
362	free (rname);	666	free (rname);
363	}	667	}
364		668
365	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	);
366	}	690	}
367		691
368	void	692	void
369	configuration::print ()	693	configuration::print ()
370	{	694	{
…		…
374	printf (_("MTU: %d\n"), mtu);	698	printf (_("MTU: %d\n"), mtu);
375	printf (_("rekeying interval: %d\n"), rekey);	699	printf (_("rekeying interval: %d\n"), rekey);
376	printf (_("keepalive interval: %d\n"), keepalive);	700	printf (_("keepalive interval: %d\n"), keepalive);
377	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
378	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
379	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);
380	printf ("\n");	704	printf ("\n");
381		705
382	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
383	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
384		708
385	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
386	(*i)->print ();	710	(*i)->print ();
387		711
388	printf ("\n");	712	printf ("\n");
389	}	713	}
390		714
391	void	715	configuration::configuration ()
392	conf_node::print ()
393	{	716	{
394	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	717	asprintf (&confbase, "%s/gvpe", CONFDIR);
395	id,
396	id >> 8, id & 0xff,
397	compress ? 'Y' : 'N',
398	connectmode == C_ONDEMAND ? "ondemand" :
399	connectmode == C_NEVER ? "never" :
400	connectmode == C_ALWAYS ? "always" : "",
401	nodename,
402	hostname ? hostname : "",
403	hostname ? ":" : "",
404	hostname ? udp_port : 0
405	);
406	}
407		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 1.6 by pcg, Fri Mar 28 16:14:40 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 1.6 by pcg, Fri Mar 28 16:14:40 2003 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC