[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 1.60 by root, Sat Jul 13 04:10:29 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
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.can_send = PROT_UDPv4;	148	default_node.protocols = 0;
79	default_node.can_recv = PROT_IPv4;	149	default_node.max_retry = DEFAULT_MAX_RETRY;
80	}	150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
81		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
		166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
		169	}
		170
		171	void
82	void configuration::cleanup()	172	configuration::cleanup ()
83	{	173	{
84	if (rsa_key)	174	if (rsa_key)
85	RSA_free (rsa_key);	175	RSA_free (rsa_key);
86		176
87	free (ifname);
88
89	rsa_key = 0;	177	rsa_key = 0;
90	ifname = 0;	178
		179	free (seed_dev); seed_dev = 0;
		180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
		182	#if ENABLE_HTTP_PROXY
		183	free (proxy_host); proxy_host = 0;
		184	free (proxy_auth); proxy_auth = 0;
		185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
91	}	194	}
92		195
93	void	196	void
94	configuration::clear_config ()	197	configuration::clear ()
95	{	198	{
96	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
97	delete *i;	200	delete *i;
98		201
99	nodes.clear ();	202	nodes.clear ();
100		203
101	cleanup ();	204	cleanup ();
102	init ();	205	init ();
103	}	206	}
104		207
		208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
105	#define parse_bool(target,name,trueval,falseval) \	214	#define parse_bool(target,name,trueval,falseval) do { \
106	if (!strcmp (val, "yes")) target = trueval; \	215	if (!strcmp (val, "yes")) target = trueval; \
107	else if (!strcmp (val, "no")) target = falseval; \	216	else if (!strcmp (val, "no")) target = falseval; \
108	else if (!strcmp (val, "true")) target = trueval; \	217	else if (!strcmp (val, "true")) target = trueval; \
109	else if (!strcmp (val, "false")) target = falseval; \	218	else if (!strcmp (val, "false")) target = falseval; \
110	else if (!strcmp (val, "on")) target = trueval; \	219	else if (!strcmp (val, "on")) target = trueval; \
111	else if (!strcmp (val, "off")) target = falseval; \	220	else if (!strcmp (val, "off")) target = falseval; \
112	else \	221	else \
113	slog (L_WARN, \
114	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	222	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
115	name, var, fname, lineno);	223	} while (0)
116		224
117	void configuration::read_config (bool need_keys)	225	const char *
		226	configuration_parser::parse_line (char *line)
118	{	227	{
		228	{
		229	char *end = line + strlen (line);
		230
		231	while (*end < ' ' && end >= line)
		232	end--;
		233
		234	*++end = 0;
		235	}
		236
		237	char *tok = line;
		238	const char *var = strtok (tok, "\t =");
		239	tok = 0;
		240
		241	if (!var \|\| !var[0])
		242	return 0; /* no tokens on this line */
		243
		244	if (var[0] == '#')
		245	return 0; /* comment: ignore */
		246
		247	char *val = strtok (NULL, "\t\n\r =");
		248
		249	if (!val \|\| val[0] == '#')
		250	return _("no value given for variable, ignored");
		251
		252	else if (!strcmp (var, "on"))
		253	{
		254	if (::thisnode
		255	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		256	\|\| !strcmp (val, ::thisnode)))
		257	return parse_line (strtok (NULL, "\n\r"));
		258	}
		259
		260	else if (!strcmp (var, "include"))
		261	{
		262	char *fname = conf.config_filename (val);
		263	parse_file (fname);
		264	free (fname);
		265	}
		266
		267	// truly global
		268	else if (!strcmp (var, "loglevel"))
		269	{
		270	loglevel l = string_to_loglevel (val);
		271
		272	if (l == L_NONE)
		273	return _("unknown loglevel, ignored");
		274	}
		275	else if (!strcmp (var, "ip-proto"))
		276	conf.ip_proto = atoi (val);
		277	else if (!strcmp (var, "icmp-type"))
		278	{
		279	#if ENABLE_ICMP
		280	conf.icmp_type = atoi (val);
		281	#endif
		282	}
		283	else if (!strcmp (var, "chuser"))
		284	{
		285	struct passwd *pw = getpwnam (val);
		286	if (!pw)
		287	return _("user specified for chuser not found");
		288
		289	conf.change_uid = pw->pw_uid;
		290	conf.change_gid = pw->pw_gid;
		291	}
		292	else if (!strcmp (var, "chuid"))
		293	conf.change_uid = atoi (val);
		294	else if (!strcmp (var, "chgid"))
		295	conf.change_gid = atoi (val);
		296	else if (!strcmp (var, "chroot"))
		297	free (conf.change_root), conf.change_root = strdup (val);
		298
		299	// per node
		300	else if (!strcmp (var, "node"))
		301	{
		302	parse_argv ();
		303
		304	conf.default_node.id++;
		305	node = new conf_node (conf.default_node);
		306	conf.nodes.push_back (node);
		307	node->nodename = strdup (val);
		308
		309	{
119	char *fname;	310	char *fname;
120	FILE *f;	311	FILE *f;
121		312
122	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
123		314
124	asprintf (&fname, "%s/vped.conf", confbase);
125	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
126		319
127	if (f)	320	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		321	{
		322	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		323	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		324	exit (EXIT_FAILURE);
		325	}
		326
		327	require (RSA_blinding_on (node->rsa_key, 0));
		328
		329	fclose (f);
		330	}
		331	else
		332	{
		333	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		334
		335	if (need_keys)
		336	exit (EXIT_FAILURE);
		337	}
		338
		339	free (fname);
		340	}
		341
		342	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		343	conf.thisnode = node;
128	{	344	}
		345	else if (!strcmp (var, "private-key"))
		346	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		347	else if (!strcmp (var, "ifpersist"))
		348	parse_bool (conf.ifpersist, "ifpersist", true, false);
		349	else if (!strcmp (var, "ifname"))
		350	free (conf.ifname), conf.ifname = strdup (val);
		351	else if (!strcmp (var, "rekey"))
		352	conf.rekey = atoi (val);
		353	else if (!strcmp (var, "keepalive"))
		354	conf.keepalive = atoi (val);
		355	else if (!strcmp (var, "mtu"))
		356	conf.mtu = atoi (val);
		357	else if (!strcmp (var, "nfmark"))
		358	conf.nfmark = atoi (val);
		359	else if (!strcmp (var, "seed-device"))
		360	free (conf.seed_dev), conf.seed_dev = strdup (val);
		361	else if (!strcmp (var, "seed-interval"))
		362	conf.reseed = atoi (val);
		363	else if (!strcmp (var, "if-up"))
		364	free (conf.script_if_up), conf.script_if_up = strdup (val);
		365	else if (!strcmp (var, "node-up"))
		366	free (conf.script_node_up), conf.script_node_up = strdup (val);
		367	else if (!strcmp (var, "node-change"))
		368	free (conf.script_node_change), conf.script_node_change = strdup (val);
		369	else if (!strcmp (var, "node-down"))
		370	free (conf.script_node_down), conf.script_node_down = strdup (val);
		371	else if (!strcmp (var, "pid-file"))
		372	free (conf.pidfilename), conf.pidfilename = strdup (val);
		373	else if (!strcmp (var, "dns-forw-host"))
		374	{
		375	#if ENABLE_DNS
		376	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-forw-port"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_forw_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-timeout-factor"))
		386	{
		387	#if ENABLE_DNS
		388	conf.dns_timeout_factor = atof (val);
		389	#endif
		390	}
		391	else if (!strcmp (var, "dns-send-interval"))
		392	{
		393	#if ENABLE_DNS
		394	conf.dns_send_interval = atoi (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "dns-overlap-factor"))
		398	{
		399	#if ENABLE_DNS
		400	conf.dns_overlap_factor = atof (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "dns-max-outstanding"))
		404	{
		405	#if ENABLE_DNS
		406	conf.dns_max_outstanding = atoi (val);
		407	#endif
		408	}
		409	else if (!strcmp (var, "dns-case-preserving"))
		410	{
		411	#if ENABLE_DNS
		412	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		413	#endif
		414	}
		415	else if (!strcmp (var, "http-proxy-host"))
		416	{
		417	#if ENABLE_HTTP_PROXY
		418	free (conf.proxy_host), conf.proxy_host = strdup (val);
		419	#endif
		420	}
		421	else if (!strcmp (var, "http-proxy-port"))
		422	{
		423	#if ENABLE_HTTP_PROXY
		424	conf.proxy_port = atoi (val);
		425	#endif
		426	}
		427	else if (!strcmp (var, "http-proxy-auth"))
		428	{
		429	#if ENABLE_HTTP_PROXY
		430	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		431	#endif
		432	}
		433
		434	/* node-specific, non-defaultable */
		435	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		436	free (node->hostname), node->hostname = strdup (val);
		437
		438	/* node-specific, defaultable */
		439	else if (!strcmp (var, "udp-port"))
		440	node->udp_port = atoi (val);
		441	else if (!strcmp (var, "tcp-port"))
		442	node->tcp_port = atoi (val);
		443	else if (!strcmp (var, "dns-hostname"))
		444	{
		445	#if ENABLE_DNS
		446	free (node->dns_hostname), node->dns_hostname = strdup (val);
		447	#endif
		448	}
		449	else if (!strcmp (var, "dns-port"))
		450	{
		451	#if ENABLE_DNS
		452	node->dns_port = atoi (val);
		453	#endif
		454	}
		455	else if (!strcmp (var, "dns-domain"))
		456	{
		457	#if ENABLE_DNS
		458	free (node->domain), node->domain = strdup (val);
		459	#endif
		460	}
		461	else if (!strcmp (var, "if-up-data"))
		462	free (node->if_up_data), node->if_up_data = strdup (val);
		463	else if (!strcmp (var, "router-priority"))
		464	node->routerprio = atoi (val);
		465	else if (!strcmp (var, "max-retry"))
		466	node->max_retry = atoi (val);
		467	else if (!strcmp (var, "connect"))
		468	{
		469	if (!strcmp (val, "ondemand"))
		470	node->connectmode = conf_node::C_ONDEMAND;
		471	else if (!strcmp (val, "never"))
		472	node->connectmode = conf_node::C_NEVER;
		473	else if (!strcmp (val, "always"))
		474	node->connectmode = conf_node::C_ALWAYS;
		475	else if (!strcmp (val, "disabled"))
		476	node->connectmode = conf_node::C_DISABLED;
		477	else
		478	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		479	}
		480	else if (!strcmp (var, "inherit-tos"))
		481	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		482	else if (!strcmp (var, "compress"))
		483	parse_bool (node->compress, "compress", true, false);
		484	// all these bool options really really cost a lot of executable size!
		485	else if (!strcmp (var, "enable-tcp"))
		486	{
		487	#if ENABLE_TCP
		488	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		489	#endif
		490	}
		491	else if (!strcmp (var, "enable-icmp"))
		492	{
		493	#if ENABLE_ICMP
		494	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		495	#endif
		496	}
		497	else if (!strcmp (var, "enable-dns"))
		498	{
		499	#if ENABLE_DNS
		500	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		501	#endif
		502	}
		503	else if (!strcmp (var, "enable-udp"))
		504	{
		505	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		506	}
		507	else if (!strcmp (var, "enable-rawip"))
		508	{
		509	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		510	}
		511	else if (!strcmp (var, "allow-direct"))
		512	node->allow_direct.push_back (strdup (val));
		513	else if (!strcmp (var, "deny-direct"))
		514	node->deny_direct.push_back (strdup (val));
		515	else if (!strcmp (var, "max-ttl"))
		516	node->max_ttl = atof (val);
		517	else if (!strcmp (var, "max-queue"))
		518	node->max_queue = atoi (val);
		519
		520	// unknown or misplaced
		521	else
		522	return _("unknown configuration directive - ignored");
		523
		524	return 0;
		525	}
		526
		527	void
		528	conf_node::finalise ()
		529	{
		530	if (max_queue < 1)
		531	{
		532	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		533	max_queue = 1;
		534	}
		535
		536	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		537	{
		538	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		539	connectmode = C_ALWAYS;
		540	}
		541	}
		542
		543	void
		544	configuration_parser::parse_argv ()
		545	{
		546	for (int i = 0; i < argc; ++i)
		547	{
		548	char *v = argv [i];
		549
		550	if (!*v)
		551	continue;
		552
		553	char *enode = v;
		554
		555	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		556	enode++;
		557
		558	if (*enode != '.')
		559	enode = 0;
		560
		561	char *wnode = node == &conf.default_node
		562	? 0
		563	: node->nodename;
		564
		565	if ((!wnode && !enode)
		566	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		567	{
		568	const char *warn = parse_line (enode ? enode + 1 : v);
		569
		570	if (warn)
		571	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		572
		573	*v = 0;
		574	}
		575	}
		576	}
		577
		578	void
		579	configuration_parser::parse_file (const char *fname)
		580	{
		581	if (FILE *f = fopen (fname, "r"))
		582	{
129	char line[16384];	583	char line [2048];
130	int lineno = 0;	584	int lineno = 0;
131	char var, val;
132	conf_node *node = &default_node;
133		585
134	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
135	{	587	{
136	lineno++;	588	lineno++;
137		589
138	{	590	const char *warn = parse_line (line);
139	char *end = line + strlen (line);
140		591
141	while (*end < ' ' && end >= line)	592	if (warn)
142	end--;	593	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	}	594	}
321		595
322	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
323	}	599	}
324	else	600	else
325	{	601	{
326	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	602	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
327	exit (1);	603	exit (EXIT_FAILURE);
328	}	604	}
		605	}
329		606
		607	configuration_parser::configuration_parser (configuration &conf,
		608	bool need_keys,
		609	int argc,
		610	char **argv)
		611	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		612	{
		613	char *fname;
		614
		615	conf.clear ();
		616	node = &conf.default_node;
		617
		618	asprintf (&fname, "%s/gvpe.conf", confbase);
		619	parse_file (fname);
330	free (fname);	620	free (fname);
331		621
332	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
333		623
334	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
335	if (f)
336	{	625	{
337	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
338		627
339	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
340	{	629	{
341	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	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));	631	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
343	exit (1);	632	exit (EXIT_FAILURE);
344	}	633	}
345		634
346	RSA_blinding_on (rsa_key, 0);	635	require (RSA_blinding_on (conf.rsa_key, 0));
347		636
348	fclose (f);	637	fclose (f);
349	}	638	}
350	else	639	else
351	{	640	{
352	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	641	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
353		642
354	if (need_keys)	643	if (need_keys)
355	exit (1);	644	exit (EXIT_FAILURE);
356	}	645	}
357		646
358	free (fname);	647	free (fname);
359	}
360		648
		649	if (need_keys && ::thisnode
		650	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		651	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		652	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		653	{
		654	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		655	exit (EXIT_FAILURE);
		656	}
		657
		658	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		659	(*i)->finalise ();
		660	}
		661
		662	char *
361	char configuration::config_filename (const char name, const char *dflt)	663	configuration::config_filename (const char name, const char dflt)
362	{	664	{
363	char *fname;	665	char *fname;
364		666
365	asprintf (&fname, name ? name : dflt, ::thisnode);	667	asprintf (&fname, name ? name : dflt, ::thisnode);
366		668
…		…
370	asprintf (&fname, "%s/%s", confbase, rname);	672	asprintf (&fname, "%s/%s", confbase, rname);
371	free (rname);	673	free (rname);
372	}	674	}
373		675
374	return fname;	676	return fname;
		677	}
		678
		679	void
		680	conf_node::print ()
		681	{
		682	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		683	id,
		684	id >> 8, id & 0xff,
		685	compress ? 'Y' : 'N',
		686	connectmode == C_ONDEMAND ? "ondemand"
		687	: connectmode == C_NEVER ? "never"
		688	: connectmode == C_ALWAYS ? "always"
		689	: connectmode == C_DISABLED ? "disabled"
		690	: "",
		691	nodename,
		692	protocols,
		693	hostname ? hostname : "",
		694	hostname ? ":" : "",
		695	hostname ? udp_port : 0
		696	);
375	}	697	}
376		698
377	void	699	void
378	configuration::print ()	700	configuration::print ()
379	{	701	{
…		…
383	printf (_("MTU: %d\n"), mtu);	705	printf (_("MTU: %d\n"), mtu);
384	printf (_("rekeying interval: %d\n"), rekey);	706	printf (_("rekeying interval: %d\n"), rekey);
385	printf (_("keepalive interval: %d\n"), keepalive);	707	printf (_("keepalive interval: %d\n"), keepalive);
386	printf (_("interface: %s\n"), ifname);	708	printf (_("interface: %s\n"), ifname);
387	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	709	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
388	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	710	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
389	printf ("\n");	711	printf ("\n");
390		712
391	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	713	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
392	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	714	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
393		715
394	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	716	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
395	(*i)->print ();	717	(*i)->print ();
396		718
397	printf ("\n");	719	printf ("\n");
398	}	720	}
399		721
400	void	722	configuration::configuration ()
401	conf_node::print ()
402	{	723	{
403	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	724	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		725
		726	init ();
		727	}
		728
		729	configuration::~configuration ()
		730	{
		731	cleanup ();
		732	}
		733

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Comparing gvpe/src/conf.C (file contents): Revision 1.5 by pcg, Fri Mar 28 04:05:10 2003 UTC vs. Revision 1.60 by root, Sat Jul 13 04:10:29 2013 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 1.60 by root, Sat Jul 13 04:10:29 2013 UTC