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

Comparing gvpe/src/conf.C (file contents):
Revision 1.5 by pcg, Fri Mar 28 04:05:10 2003 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
37		45
38	#include <openssl/err.h>	46	#include <openssl/err.h>
39	#include <openssl/pem.h>	47	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	49	#include <openssl/rand.h>
42		50	#include <openssl/bn.h>
43	#include "gettext.h"
44		51
45	#include "conf.h"	52	#include "conf.h"
46	#include "slog.h"	53	#include "slog.h"
47	#include "util.h"	54	#include "util.h"
48		55
49	char *confbase;	56	char *confbase;
50	char *thisnode;	57	char *thisnode;
51	char *identname;	58	char *identname;
52	char *pidfilename;
53		59
54	struct configuration conf;	60	struct configuration conf;
55		61
56	configuration::configuration ()	62	u8
		63	best_protocol (u8 protset)
57	{	64	{
58	init ();	65	#if 1//D2
59	}	66	if (protset & PROT_IPv42 ) return PROT_IPv42;
		67	#endif
		68	if (protset & PROT_IPv4 ) return PROT_IPv4;
		69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		72	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
60		73
61	configuration::~configuration ()	74	return 0;
62	{
63	cleanup ();
64	}	75	}
65		76
		77	const char *
		78	strprotocol (u8 protocol)
		79	{
		80	#if 1//D2
		81	if (protocol & PROT_IPv42 ) return "rawip2";
		82	#endif
		83	if (protocol & PROT_IPv4 ) return "rawip";
		84	if (protocol & PROT_ICMPv4) return "icmp";
		85	if (protocol & PROT_UDPv4 ) return "udp";
		86	if (protocol & PROT_TCPv4 ) return "tcp";
		87	if (protocol & PROT_DNSv4 ) return "dns";
		88
		89	return "<unknown>";
		90	}
		91
		92	static bool
		93	match_list (const vector<const char > &list, const char str)
		94	{
		95	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
		96	if ((i)[0] == '' && !(*i)[1])
		97	return true;
		98	else if (!strcmp (*i, str))
		99	return true;
		100
		101	return false;
		102	}
		103
		104	bool
		105	conf_node::may_direct (struct conf_node *other)
		106	{
		107	if (match_list (allow_direct, other->nodename))
		108	return true;
		109
		110	if (match_list (deny_direct, other->nodename))
		111	return false;
		112
		113	return true;
		114	}
		115
		116	conf_node::~conf_node ()
		117	{
		118	#if 0
		119	// does not work, because string pointers etc. are shared
		120	// is not called, however
		121	if (rsa_key)
		122	RSA_free (rsa_key);
		123
		124	free (nodename);
		125	free (hostname);
		126	free (if_up_data);
		127	#if ENABLE_DNS
		128	free (domain);
		129	free (dns_hostname);
		130	#endif
		131	#endif
		132	}
		133
		134	void
66	void configuration::init ()	135	configuration::init ()
67	{	136	{
68	memset (this, 0, sizeof (*this));	137	memset (this, 0, sizeof (*this));
69		138
		139	mtu = DEFAULT_MTU;
		140	nfmark = 0;
70	rekey = DEFAULT_REKEY;	141	rekey = DEFAULT_REKEY;
71	keepalive = DEFAULT_KEEPALIVE;	142	keepalive = DEFAULT_KEEPALIVE;
72	llevel = L_INFO;	143	llevel = L_INFO;
73	ip_proto = IPPROTO_GRE;	144	ip_proto = IPPROTO_GRE;
		145	#if 1 //D2
		146	ip2_proto = 7;
		147	#endif
		148	#if ENABLE_ICMP
		149	icmp_type = ICMP_ECHOREPLY;
		150	#endif
74		151
75	default_node.udp_port = DEFAULT_UDPPORT;	152	default_node.udp_port = DEFAULT_UDPPORT;
		153	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
76	default_node.connectmode = conf_node::C_ALWAYS;	154	default_node.connectmode = conf_node::C_ALWAYS;
77	default_node.compress = true;	155	default_node.compress = true;
78	default_node.can_send = PROT_UDPv4;	156	default_node.protocols = 0;
79	default_node.can_recv = PROT_IPv4;	157	default_node.max_retry = DEFAULT_MAX_RETRY;
80	}	158	default_node.max_ttl = DEFAULT_MAX_TTL;
		159	default_node.max_queue = DEFAULT_MAX_QUEUE;
		160	default_node.if_up_data = strdup ("");
81		161
		162	#if ENABLE_DNS
		163	default_node.dns_port = 0; // default is 0 == client
		164
		165	dns_case_preserving = true;
		166	dns_forw_host = strdup ("127.0.0.1");
		167	dns_forw_port = 53;
		168	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		169	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		170	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		171	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		172	#endif
		173
		174	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		175	}
		176
		177	void
82	void configuration::cleanup()	178	configuration::cleanup ()
83	{	179	{
84	if (rsa_key)	180	if (rsa_key)
85	RSA_free (rsa_key);	181	RSA_free (rsa_key);
86		182
87	free (ifname);
88
89	rsa_key = 0;	183	rsa_key = 0;
90	ifname = 0;	184
		185	free (pidfilename); pidfilename = 0;
		186	free (ifname); ifname = 0;
		187	#if ENABLE_HTTP_PROXY
		188	free (proxy_host); proxy_host = 0;
		189	free (proxy_auth); proxy_auth = 0;
		190	#endif
		191	#if ENABLE_DNS
		192	free (dns_forw_host); dns_forw_host = 0;
		193	#endif
		194	free (script_if_up); script_if_up = 0;
		195	free (script_node_up); script_node_up = 0;
		196	free (script_node_change); script_node_change = 0;
		197	free (script_node_down); script_node_down = 0;
91	}	198	}
92		199
93	void	200	void
94	configuration::clear_config ()	201	configuration::clear ()
95	{	202	{
96	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	203	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
97	delete *i;	204	delete *i;
98		205
99	nodes.clear ();	206	nodes.clear ();
100		207
101	cleanup ();	208	cleanup ();
102	init ();	209	init ();
103	}	210	}
104		211
		212	//static bool
		213	//is_true (const char *name)
		214	//{
		215	//re
		216	//}
		217
105	#define parse_bool(target,name,trueval,falseval) \	218	#define parse_bool(target,name,trueval,falseval) do { \
106	if (!strcmp (val, "yes")) target = trueval; \	219	if (!strcmp (val, "yes")) target = trueval; \
107	else if (!strcmp (val, "no")) target = falseval; \	220	else if (!strcmp (val, "no")) target = falseval; \
108	else if (!strcmp (val, "true")) target = trueval; \	221	else if (!strcmp (val, "true")) target = trueval; \
109	else if (!strcmp (val, "false")) target = falseval; \	222	else if (!strcmp (val, "false")) target = falseval; \
110	else if (!strcmp (val, "on")) target = trueval; \	223	else if (!strcmp (val, "on")) target = trueval; \
111	else if (!strcmp (val, "off")) target = falseval; \	224	else if (!strcmp (val, "off")) target = falseval; \
112	else \	225	else \
113	slog (L_WARN, \
114	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	226	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
115	name, var, fname, lineno);	227	} while (0)
116		228
117	void configuration::read_config (bool need_keys)	229	const char *
		230	configuration_parser::parse_line (char *line)
118	{	231	{
		232	{
		233	char *end = line + strlen (line);
		234
		235	while (*end < ' ' && end >= line)
		236	end--;
		237
		238	*++end = 0;
		239	}
		240
		241	char *tok = line;
		242	const char *var = strtok (tok, "\t =");
		243	tok = 0;
		244
		245	if (!var \|\| !var[0])
		246	return 0; /* no tokens on this line */
		247
		248	if (var[0] == '#')
		249	return 0; /* comment: ignore */
		250
		251	char *val = strtok (NULL, "\t\n\r =");
		252
		253	if (!val \|\| val[0] == '#')
		254	return _("no value given for variable, ignored");
		255
		256	else if (!strcmp (var, "on"))
		257	{
		258	if (::thisnode
		259	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		260	\|\| !strcmp (val, ::thisnode)))
		261	return parse_line (strtok (NULL, "\n\r"));
		262	}
		263
		264	else if (!strcmp (var, "include"))
		265	{
		266	char *fname = conf.config_filename (val);
		267	parse_file (fname);
		268	free (fname);
		269	}
		270
		271	// truly global
		272	else if (!strcmp (var, "loglevel"))
		273	{
		274	loglevel l = string_to_loglevel (val);
		275
		276	if (l == L_NONE)
		277	return _("unknown loglevel, ignored");
		278	}
		279	else if (!strcmp (var, "ip-proto"))
		280	conf.ip_proto = atoi (val);
		281	#if 1 //D2
		282	else if (!strcmp (var, "ip2-proto"))
		283	conf.ip2_proto = atoi (val);
		284	#endif
		285	else if (!strcmp (var, "icmp-type"))
		286	{
		287	#if ENABLE_ICMP
		288	conf.icmp_type = atoi (val);
		289	#endif
		290	}
		291
		292	// per config
		293	else if (!strcmp (var, "node"))
		294	{
		295	parse_argv ();
		296
		297	conf.default_node.id++;
		298	node = new conf_node (conf.default_node);
		299	conf.nodes.push_back (node);
		300	node->nodename = strdup (val);
		301
		302	{
119	char *fname;	303	char *fname;
120	FILE *f;	304	FILE *f;
121		305
122	clear_config ();	306	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
123		307
124	asprintf (&fname, "%s/vped.conf", confbase);
125	f = fopen (fname, "r");	308	f = fopen (fname, "r");
		309	if (f)
		310	{
		311	node->rsa_key = RSA_new ();
126		312
127	if (f)	313	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		314	{
		315	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		316	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		317	exit (EXIT_FAILURE);
		318	}
		319
		320	require (RSA_blinding_on (node->rsa_key, 0));
		321
		322	fclose (f);
		323	}
		324	else
		325	{
		326	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		327
		328	if (need_keys)
		329	exit (EXIT_FAILURE);
		330	}
		331
		332	free (fname);
		333	}
		334
		335	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		336	conf.thisnode = node;
128	{	337	}
		338	else if (!strcmp (var, "private-key"))
		339	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		340	else if (!strcmp (var, "ifpersist"))
		341	parse_bool (conf.ifpersist, "ifpersist", true, false);
		342	else if (!strcmp (var, "ifname"))
		343	free (conf.ifname), conf.ifname = strdup (val);
		344	else if (!strcmp (var, "rekey"))
		345	conf.rekey = atoi (val);
		346	else if (!strcmp (var, "keepalive"))
		347	conf.keepalive = atoi (val);
		348	else if (!strcmp (var, "mtu"))
		349	conf.mtu = atoi (val);
		350	else if (!strcmp (var, "nfmark"))
		351	conf.nfmark = atoi (val);
		352	else if (!strcmp (var, "if-up"))
		353	free (conf.script_if_up), conf.script_if_up = strdup (val);
		354	else if (!strcmp (var, "node-up"))
		355	free (conf.script_node_up), conf.script_node_up = strdup (val);
		356	else if (!strcmp (var, "node-change"))
		357	free (conf.script_node_change), conf.script_node_change = strdup (val);
		358	else if (!strcmp (var, "node-down"))
		359	free (conf.script_node_down), conf.script_node_down = strdup (val);
		360	else if (!strcmp (var, "pid-file"))
		361	free (conf.pidfilename), conf.pidfilename = strdup (val);
		362	else if (!strcmp (var, "dns-forw-host"))
		363	{
		364	#if ENABLE_DNS
		365	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-forw-port"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_forw_port = atoi (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-timeout-factor"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_timeout_factor = atof (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-send-interval"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_send_interval = atoi (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-overlap-factor"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_overlap_factor = atof (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-max-outstanding"))
		393	{
		394	#if ENABLE_DNS
		395	conf.dns_max_outstanding = atoi (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "dns-case-preserving"))
		399	{
		400	#if ENABLE_DNS
		401	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-host"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	free (conf.proxy_host), conf.proxy_host = strdup (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-port"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_port = atoi (val);
		414	#endif
		415	}
		416	else if (!strcmp (var, "http-proxy-auth"))
		417	{
		418	#if ENABLE_HTTP_PROXY
		419	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		420	#endif
		421	}
		422
		423	/* node-specific, non-defaultable */
		424	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		425	free (node->hostname), node->hostname = strdup (val);
		426
		427	/* node-specific, defaultable */
		428	else if (!strcmp (var, "udp-port"))
		429	node->udp_port = atoi (val);
		430	else if (!strcmp (var, "tcp-port"))
		431	node->tcp_port = atoi (val);
		432	else if (!strcmp (var, "dns-hostname"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->dns_hostname), node->dns_hostname = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-port"))
		439	{
		440	#if ENABLE_DNS
		441	node->dns_port = atoi (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "dns-domain"))
		445	{
		446	#if ENABLE_DNS
		447	free (node->domain), node->domain = strdup (val);
		448	#endif
		449	}
		450	else if (!strcmp (var, "if-up-data"))
		451	free (node->if_up_data), node->if_up_data = strdup (val);
		452	else if (!strcmp (var, "router-priority"))
		453	node->routerprio = atoi (val);
		454	else if (!strcmp (var, "max-retry"))
		455	node->max_retry = atoi (val);
		456	else if (!strcmp (var, "connect"))
		457	{
		458	if (!strcmp (val, "ondemand"))
		459	node->connectmode = conf_node::C_ONDEMAND;
		460	else if (!strcmp (val, "never"))
		461	node->connectmode = conf_node::C_NEVER;
		462	else if (!strcmp (val, "always"))
		463	node->connectmode = conf_node::C_ALWAYS;
		464	else if (!strcmp (val, "disabled"))
		465	node->connectmode = conf_node::C_DISABLED;
		466	else
		467	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		468	}
		469	else if (!strcmp (var, "inherit-tos"))
		470	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		471	else if (!strcmp (var, "compress"))
		472	parse_bool (node->compress, "compress", true, false);
		473	// all these bool options really really cost a lot of executable size!
		474	else if (!strcmp (var, "enable-tcp"))
		475	{
		476	#if ENABLE_TCP
		477	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-icmp"))
		481	{
		482	#if ENABLE_ICMP
		483	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-dns"))
		487	{
		488	#if ENABLE_DNS
		489	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		490	#endif
		491	}
		492	else if (!strcmp (var, "enable-udp"))
		493	{
		494	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		495	}
		496	else if (!strcmp (var, "enable-rawip"))
		497	{
		498	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		499	}
		500	#if 1//D2
		501	else if (!strcmp (var, "enable-rawip2"))
		502	{
		503	u8 v; parse_bool (v, "enable-rawip2", PROT_IPv42, 0); node->protocols = (node->protocols & ~PROT_IPv42 ) \| v;
		504	}
		505	#endif
		506	else if (!strcmp (var, "allow-direct"))
		507	node->allow_direct.push_back (strdup (val));
		508	else if (!strcmp (var, "deny-direct"))
		509	node->deny_direct.push_back (strdup (val));
		510	else if (!strcmp (var, "max-ttl"))
		511	node->max_ttl = atof (val);
		512	else if (!strcmp (var, "max-queue"))
		513	node->max_queue = atoi (val);
		514
		515	// unknown or misplaced
		516	else
		517	return _("unknown configuration directive - ignored");
		518
		519	return 0;
		520	}
		521
		522	void
		523	conf_node::finalise ()
		524	{
		525	if (max_queue < 1)
		526	{
		527	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		528	max_queue = 1;
		529	}
		530
		531	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		532	{
		533	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		534	connectmode = C_ALWAYS;
		535	}
		536	}
		537
		538	void
		539	configuration_parser::parse_argv ()
		540	{
		541	for (int i = 0; i < argc; ++i)
		542	{
		543	char *v = argv [i];
		544
		545	if (!*v)
		546	continue;
		547
		548	char *enode = v;
		549
		550	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		551	enode++;
		552
		553	if (*enode != '.')
		554	enode = 0;
		555
		556	char *wnode = node == &conf.default_node
		557	? 0
		558	: node->nodename;
		559
		560	if ((!wnode && !enode)
		561	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		562	{
		563	const char *warn = parse_line (enode ? enode + 1 : v);
		564
		565	if (warn)
		566	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		567
		568	*v = 0;
		569	}
		570	}
		571	}
		572
		573	void
		574	configuration_parser::parse_file (const char *fname)
		575	{
		576	if (FILE *f = fopen (fname, "r"))
		577	{
129	char line[16384];	578	char line [2048];
130	int lineno = 0;	579	int lineno = 0;
131	char var, val;
132	conf_node *node = &default_node;
133		580
134	while (fgets (line, sizeof (line), f))	581	while (fgets (line, sizeof (line), f))
135	{	582	{
136	lineno++;	583	lineno++;
137		584
138	{	585	const char *warn = parse_line (line);
139	char *end = line + strlen (line);
140		586
141	while (*end < ' ' && end >= line)	587	if (warn)
142	end--;	588	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
143
144	*++end = 0;
145	}
146
147	char *tok = line;
148
149	retry:
150	var = strtok (tok, "\t =");
151	tok = 0;
152
153	if (!var \|\| !var[0])
154	continue; /* no tokens on this line */
155
156	if (var[0] == '#')
157	continue; /* comment: ignore */
158
159	val = strtok (NULL, "\t\n\r =");
160
161	if (!val \|\| val[0] == '#')
162	{
163	slog (L_WARN,
164	_("no value for variable `%s', at '%s' line %d"),
165	var, fname, lineno);
166	break;
167	}
168
169	if (!strcmp (var, "on"))
170	{
171	if (!::thisnode
172	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
173	\|\| !strcmp (val, ::thisnode))
174	goto retry;
175
176	continue;
177	}
178
179	// truly global
180	if (!strcmp (var, "loglevel"))
181	{
182	loglevel l = string_to_loglevel (val);
183
184	if (l != L_NONE)
185	llevel = l;
186	else
187	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
188	}
189	else if (!strcmp (var, "ip-proto"))
190	ip_proto = atoi (val);
191
192	// per config
193	else if (!strcmp (var, "node"))
194	{
195	default_node.id++;
196
197	node = new conf_node (default_node);
198
199	nodes.push_back (node);
200
201	node->nodename = strdup (val);
202
203	{
204	char *fname;
205	FILE *f;
206
207	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
208
209	f = fopen (fname, "r");
210	if (f)
211	{
212	node->rsa_key = RSA_new ();
213
214	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
215	{
216	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
217	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
218	exit (1);
219	}
220
221	RSA_blinding_on (node->rsa_key, 0);
222
223	fclose (f);
224	}
225	else
226	{
227	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
228
229	if (need_keys)
230	exit (1);
231	}
232
233	free (fname);
234	}
235
236	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
237	thisnode = node;
238	}
239	else if (!strcmp (var, "private-key"))
240	prikeyfile = strdup (val);
241	else if (!strcmp (var, "ifpersist"))
242	{
243	parse_bool (ifpersist, "ifpersist", true, false);
244	}
245	else if (!strcmp (var, "ifname"))
246	ifname = strdup (val);
247	else if (!strcmp (var, "rekey"))
248	rekey = atoi (val);
249	else if (!strcmp (var, "keepalive"))
250	keepalive = atoi (val);
251	else if (!strcmp (var, "mtu"))
252	mtu = atoi (val);
253	else if (!strcmp (var, "if-up"))
254	script_if_up = strdup (val);
255	else if (!strcmp (var, "node-up"))
256	script_node_up = strdup (val);
257	else if (!strcmp (var, "node-down"))
258	script_node_down = strdup (val);
259
260	/* node-specific, non-defaultable */
261	else if (node != &default_node && !strcmp (var, "hostname"))
262	{
263	free (node->hostname);
264	node->hostname = strdup (val);
265	}
266
267	/* node-specific, defaultable */
268	else if (!strcmp (var, "udp-port"))
269	node->udp_port = atoi (val);
270	else if (!strcmp (var, "router-priority"))
271	node->routerprio = atoi (val);
272	else if (!strcmp (var, "connect"))
273	{
274	if (!strcmp (val, "ondemand"))
275	node->connectmode = conf_node::C_ONDEMAND;
276	else if (!strcmp (val, "never"))
277	node->connectmode = conf_node::C_NEVER;
278	else if (!strcmp (val, "always"))
279	node->connectmode = conf_node::C_ALWAYS;
280	else if (!strcmp (val, "disabled"))
281	node->connectmode = conf_node::C_DISABLED;
282	else
283	slog (L_WARN,
284	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
285	var, fname, lineno);
286	}
287	else if (!strcmp (var, "inherit-tos"))
288	{
289	parse_bool (node->inherit_tos, "inherit-tos", true, false);
290	}
291	else if (!strcmp (var, "compress"))
292	{
293	parse_bool (node->compress, "compress", true, false);
294	}
295	// all these bool options really really cost a lot of executable size!
296	else if (!strcmp (var, "can-send-udp"))
297	{
298	u8 v; parse_bool (v, "can-send-udp", PROT_UDPv4, 0); node->can_send = (node->can_send & ~PROT_UDPv4) \| v;
299	}
300	else if (!strcmp (var, "can-recv-udp"))
301	{
302	u8 v; parse_bool (v, "can-recv-udp", PROT_UDPv4, 0); node->can_recv = (node->can_recv & ~PROT_UDPv4) \| v;
303	}
304	else if (!strcmp (var, "can-send-rawip"))
305	{
306	u8 v; parse_bool (v, "can-send-rawip", PROT_IPv4, 0); node->can_send = (node->can_send & ~PROT_IPv4) \| v;
307	}
308	else if (!strcmp (var, "can-recv-rawip"))
309	{
310	u8 v; parse_bool (v, "can-recv-rawip", PROT_IPv4, 0); node->can_recv = (node->can_recv & ~PROT_IPv4) \| v;
311	}
312
313	// unknown or misplaced
314	else
315	{
316	slog (L_WARN,
317	_("unknown or misplaced variable `%s', at '%s' line %d"),
318	var, fname, lineno);
319	}
320	}	589	}
321		590
322	fclose (f);	591	fclose (f);
		592
		593	parse_argv ();
323	}	594	}
324	else	595	else
325	{	596	{
326	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	597	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
327	exit (1);	598	exit (EXIT_FAILURE);
328	}	599	}
		600	}
329		601
		602	configuration_parser::configuration_parser (configuration &conf,
		603	bool need_keys,
		604	int argc,
		605	char **argv)
		606	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		607	{
		608	char *fname;
		609
		610	conf.clear ();
		611	node = &conf.default_node;
		612
		613	asprintf (&fname, "%s/gvpe.conf", confbase);
		614	parse_file (fname);
330	free (fname);	615	free (fname);
331		616
332	fname = config_filename (prikeyfile, "hostkey");	617	fname = conf.config_filename (conf.prikeyfile, "hostkey");
333		618
334	f = fopen (fname, "r");	619	if (FILE *f = fopen (fname, "r"))
335	if (f)
336	{	620	{
337	rsa_key = RSA_new ();	621	conf.rsa_key = RSA_new ();
338		622
339	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	623	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
340	{	624	{
341	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	625	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
342	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	626	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
343	exit (1);	627	exit (EXIT_FAILURE);
344	}	628	}
345		629
346	RSA_blinding_on (rsa_key, 0);	630	require (RSA_blinding_on (conf.rsa_key, 0));
347		631
348	fclose (f);	632	fclose (f);
349	}	633	}
350	else	634	else
351	{	635	{
352	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	636	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
353		637
354	if (need_keys)	638	if (need_keys)
355	exit (1);	639	exit (EXIT_FAILURE);
356	}	640	}
357		641
358	free (fname);	642	free (fname);
359	}
360		643
		644	if (need_keys && ::thisnode
		645	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		646	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		647	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		648	{
		649	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		650	exit (EXIT_FAILURE);
		651	}
		652
		653	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		654	(*i)->finalise ();
		655	}
		656
		657	char *
361	char configuration::config_filename (const char name, const char *dflt)	658	configuration::config_filename (const char name, const char dflt)
362	{	659	{
363	char *fname;	660	char *fname;
364		661
365	asprintf (&fname, name ? name : dflt, ::thisnode);	662	asprintf (&fname, name ? name : dflt, ::thisnode);
366		663
…		…
370	asprintf (&fname, "%s/%s", confbase, rname);	667	asprintf (&fname, "%s/%s", confbase, rname);
371	free (rname);	668	free (rname);
372	}	669	}
373		670
374	return fname;	671	return fname;
		672	}
		673
		674	void
		675	conf_node::print ()
		676	{
		677	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		678	id,
		679	id >> 8, id & 0xff,
		680	compress ? 'Y' : 'N',
		681	connectmode == C_ONDEMAND ? "ondemand"
		682	: connectmode == C_NEVER ? "never"
		683	: connectmode == C_ALWAYS ? "always"
		684	: connectmode == C_DISABLED ? "disabled"
		685	: "",
		686	nodename,
		687	protocols,
		688	hostname ? hostname : "",
		689	hostname ? ":" : "",
		690	hostname ? udp_port : 0
		691	);
375	}	692	}
376		693
377	void	694	void
378	configuration::print ()	695	configuration::print ()
379	{	696	{
…		…
383	printf (_("MTU: %d\n"), mtu);	700	printf (_("MTU: %d\n"), mtu);
384	printf (_("rekeying interval: %d\n"), rekey);	701	printf (_("rekeying interval: %d\n"), rekey);
385	printf (_("keepalive interval: %d\n"), keepalive);	702	printf (_("keepalive interval: %d\n"), keepalive);
386	printf (_("interface: %s\n"), ifname);	703	printf (_("interface: %s\n"), ifname);
387	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	704	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
388	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	705	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
389	printf ("\n");	706	printf ("\n");
390		707
391	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	708	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
392	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	709	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
393		710
394	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	711	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
395	(*i)->print ();	712	(*i)->print ();
396		713
397	printf ("\n");	714	printf ("\n");
398	}	715	}
399		716
400	void	717	configuration::configuration ()
401	conf_node::print ()
402	{	718	{
403	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	719	asprintf (&confbase, "%s/gvpe", CONFDIR);
404	id,
405	id >> 8, id & 0xff,
406	compress ? 'Y' : 'N',
407	connectmode == C_ONDEMAND ? "ondemand" :
408	connectmode == C_NEVER ? "never" :
409	connectmode == C_ALWAYS ? "always" : "",
410	nodename,
411	hostname ? hostname : "",
412	hostname ? ":" : "",
413	hostname ? udp_port : 0
414	);
415	}
416		720
		721	init ();
		722	}
		723
		724	configuration::~configuration ()
		725	{
		726	cleanup ();
		727	}
		728

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Comparing gvpe/src/conf.C (file contents): Revision 1.5 by pcg, Fri Mar 28 04:05:10 2003 UTC vs. Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.5 by pcg, Fri Mar 28 04:05:10 2003 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC