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

Comparing gvpe/src/conf.C (file contents):
Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	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
6	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
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	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
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	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
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	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.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <cstdio>	34	#include <cstdio>
35	#include <openssl/pem.h>	47	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	49	#include <openssl/rand.h>
38	#include <openssl/bn.h>	50	#include <openssl/bn.h>
39		51
40	#include "gettext.h"
41
42	#include "conf.h"	52	#include "conf.h"
43	#include "slog.h"	53	#include "slog.h"
44	#include "util.h"	54	#include "util.h"
45		55
46	char *confbase;	56	char *confbase;
47	char *thisnode;	57	char *thisnode;
48	char *identname;	58	char *identname;
49		59
50	struct configuration conf;	60	struct configuration conf;
51		61
		62	u8
52	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
53	{	64	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		70
60	return 0;	71	return 0;
61	}	72	}
62		73
		74	const char *
63	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
64	{	76	{
65	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	81	if (protocol & PROT_DNSv4 ) return "dns";
70		82
71	return "<unknown>";	83	return "<unknown>";
72	}	84	}
73		85
74	void	86	static bool
75	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
76	{	88	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	90	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	91	return true;
80	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
82	connectmode == C_NEVER ? "never" :	94
83	connectmode == C_ALWAYS ? "always" : "",	95	return false;
84	nodename,	96	}
85	hostname ? hostname : "",	97
86	hostname ? ":" : "",	98	bool
87	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
88	);	100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
89	}	108	}
90		109
91	conf_node::~conf_node ()	110	conf_node::~conf_node ()
92	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
93	if (rsa_key)	115	if (rsa_key)
94	RSA_free (rsa_key);	116	RSA_free (rsa_key);
95		117
96	free (nodename);	118	free (nodename);
97	free (hostname);	119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
98	}	126	}
99		127
		128	void
100	void configuration::init ()	129	configuration::init ()
101	{	130	{
102	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
103		132
104	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
105	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	137	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
109	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
112		142
113	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	146	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
118	}	148	default_node.max_retry = DEFAULT_MAX_RETRY;
		149	default_node.max_ttl = DEFAULT_MAX_TTL;
		150	default_node.max_queue = DEFAULT_MAX_QUEUE;
		151	default_node.if_up_data = strdup ("");
119		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_case_preserving = true;
		157	dns_forw_host = strdup ("127.0.0.1");
		158	dns_forw_port = 53;
		159	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		160	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		161	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		162	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		163	#endif
		164
		165	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		166	}
		167
		168	void
120	void configuration::cleanup()	169	configuration::cleanup ()
121	{	170	{
122	if (rsa_key)	171	if (rsa_key)
123	RSA_free (rsa_key);	172	RSA_free (rsa_key);
124		173
125	rsa_key = 0;	174	rsa_key = 0;
126		175
127	free (pidfilename); pidfilename = 0;	176	free (pidfilename); pidfilename = 0;
128	free (ifname); ifname = 0;	177	free (ifname); ifname = 0;
129	#if ENABLE_HTTP_PROXY	178	#if ENABLE_HTTP_PROXY
130	free (proxy_host); proxy_host = 0;	179	free (proxy_host); proxy_host = 0;
131	free (proxy_auth); proxy_auth = 0;	180	free (proxy_auth); proxy_auth = 0;
132	#endif	181	#endif
		182	#if ENABLE_DNS
		183	free (dns_forw_host); dns_forw_host = 0;
		184	#endif
		185	free (script_if_up); script_if_up = 0;
		186	free (script_node_up); script_node_up = 0;
		187	free (script_node_change); script_node_change = 0;
		188	free (script_node_down); script_node_down = 0;
133	}	189	}
134		190
135	void	191	void
136	configuration::clear_config ()	192	configuration::clear ()
137	{	193	{
138	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	194	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
139	delete *i;	195	delete *i;
140		196
141	nodes.clear ();	197	nodes.clear ();
142		198
143	cleanup ();	199	cleanup ();
144	init ();	200	init ();
145	}	201	}
146		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
147	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
148	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
149	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
150	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
151	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
152	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
153	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
154	else \	216	else \
155	slog (L_WARN, \	217	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
156	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	218	} while (0)
157	name, var, fname, lineno);
158		219
159	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
160	{	222	{
		223	{
		224	char *end = line + strlen (line);
		225
		226	while (*end < ' ' && end >= line)
		227	end--;
		228
		229	*++end = 0;
		230	}
		231
		232	char *tok = line;
		233	const char *var = strtok (tok, "\t =");
		234	tok = 0;
		235
		236	if (!var \|\| !var[0])
		237	return 0; /* no tokens on this line */
		238
		239	if (var[0] == '#')
		240	return 0; /* comment: ignore */
		241
		242	char *val = strtok (NULL, "\t\n\r =");
		243
		244	if (!val \|\| val[0] == '#')
		245	return _("no value given for variable. (ignored)");
		246
		247	else if (!strcmp (var, "on"))
		248	{
		249	if (!::thisnode
		250	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		251	\|\| !strcmp (val, ::thisnode))
		252	return parse_line (strtok (NULL, "\n\r"));
		253	}
		254
		255	else if (!strcmp (var, "include"))
		256	{
		257	char *fname = conf.config_filename (val);
		258	parse_file (fname);
		259	free (fname);
		260	}
		261
		262	// truly global
		263	else if (!strcmp (var, "loglevel"))
		264	{
		265	loglevel l = string_to_loglevel (val);
		266
		267	if (l == L_NONE)
		268	return _("unknown loglevel. (skipping)");
		269	}
		270	else if (!strcmp (var, "ip-proto"))
		271	conf.ip_proto = atoi (val);
		272	else if (!strcmp (var, "icmp-type"))
		273	{
		274	#if ENABLE_ICMP
		275	conf.icmp_type = atoi (val);
		276	#endif
		277	}
		278
		279	// per config
		280	else if (!strcmp (var, "node"))
		281	{
		282	parse_argv ();
		283
		284	conf.default_node.id++;
		285	node = new conf_node (conf.default_node);
		286	conf.nodes.push_back (node);
		287	node->nodename = strdup (val);
		288
		289	{
161	char *fname;	290	char *fname;
162	FILE *f;	291	FILE *f;
163		292
164	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
165		294
166	asprintf (&fname, "%s/vped.conf", confbase);
167	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
168		299
169	if (f)	300	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		301	{
		302	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		303	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	require (RSA_blinding_on (node->rsa_key, 0));
		308
		309	fclose (f);
		310	}
		311	else
		312	{
		313	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		314
		315	if (need_keys)
		316	exit (EXIT_FAILURE);
		317	}
		318
		319	free (fname);
		320	}
		321
		322	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		323	conf.thisnode = node;
170	{	324	}
		325	else if (!strcmp (var, "private-key"))
		326	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		327	else if (!strcmp (var, "ifpersist"))
		328	parse_bool (conf.ifpersist, "ifpersist", true, false);
		329	else if (!strcmp (var, "ifname"))
		330	free (conf.ifname), conf.ifname = strdup (val);
		331	else if (!strcmp (var, "rekey"))
		332	conf.rekey = atoi (val);
		333	else if (!strcmp (var, "keepalive"))
		334	conf.keepalive = atoi (val);
		335	else if (!strcmp (var, "mtu"))
		336	conf.mtu = atoi (val);
		337	else if (!strcmp (var, "nfmark"))
		338	conf.nfmark = atoi (val);
		339	else if (!strcmp (var, "if-up"))
		340	free (conf.script_if_up), conf.script_if_up = strdup (val);
		341	else if (!strcmp (var, "node-up"))
		342	free (conf.script_node_up), conf.script_node_up = strdup (val);
		343	else if (!strcmp (var, "node-change"))
		344	free (conf.script_node_change), conf.script_node_change = strdup (val);
		345	else if (!strcmp (var, "node-down"))
		346	free (conf.script_node_down), conf.script_node_down = strdup (val);
		347	else if (!strcmp (var, "pid-file"))
		348	free (conf.pidfilename), conf.pidfilename = strdup (val);
		349	else if (!strcmp (var, "dns-forw-host"))
		350	{
		351	#if ENABLE_DNS
		352	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-forw-port"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_forw_port = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-timeout-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_timeout_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-send-interval"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_send_interval = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "dns-overlap-factor"))
		374	{
		375	#if ENABLE_DNS
		376	conf.dns_overlap_factor = atof (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-max-outstanding"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_max_outstanding = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-case-preserving"))
		386	{
		387	#if ENABLE_DNS
		388	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		389	#endif
		390	}
		391	else if (!strcmp (var, "http-proxy-host"))
		392	{
		393	#if ENABLE_HTTP_PROXY
		394	free (conf.proxy_host), conf.proxy_host = strdup (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "http-proxy-port"))
		398	{
		399	#if ENABLE_HTTP_PROXY
		400	conf.proxy_port = atoi (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "http-proxy-auth"))
		404	{
		405	#if ENABLE_HTTP_PROXY
		406	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		407	#endif
		408	}
		409
		410	/* node-specific, non-defaultable */
		411	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		412	free (node->hostname), node->hostname = strdup (val);
		413
		414	/* node-specific, defaultable */
		415	else if (!strcmp (var, "udp-port"))
		416	node->udp_port = atoi (val);
		417	else if (!strcmp (var, "tcp-port"))
		418	node->tcp_port = atoi (val);
		419	else if (!strcmp (var, "dns-hostname"))
		420	{
		421	#if ENABLE_DNS
		422	free (node->dns_hostname), node->dns_hostname = strdup (val);
		423	#endif
		424	}
		425	else if (!strcmp (var, "dns-port"))
		426	{
		427	#if ENABLE_DNS
		428	node->dns_port = atoi (val);
		429	#endif
		430	}
		431	else if (!strcmp (var, "dns-domain"))
		432	{
		433	#if ENABLE_DNS
		434	free (node->domain), node->domain = strdup (val);
		435	#endif
		436	}
		437	else if (!strcmp (var, "if-up-data"))
		438	free (node->if_up_data), node->if_up_data = strdup (val);
		439	else if (!strcmp (var, "router-priority"))
		440	node->routerprio = atoi (val);
		441	else if (!strcmp (var, "max-retry"))
		442	node->max_retry = atoi (val);
		443	else if (!strcmp (var, "connect"))
		444	{
		445	if (!strcmp (val, "ondemand"))
		446	node->connectmode = conf_node::C_ONDEMAND;
		447	else if (!strcmp (val, "never"))
		448	node->connectmode = conf_node::C_NEVER;
		449	else if (!strcmp (val, "always"))
		450	node->connectmode = conf_node::C_ALWAYS;
		451	else if (!strcmp (val, "disabled"))
		452	node->connectmode = conf_node::C_DISABLED;
		453	else
		454	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		455	}
		456	else if (!strcmp (var, "inherit-tos"))
		457	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		458	else if (!strcmp (var, "compress"))
		459	parse_bool (node->compress, "compress", true, false);
		460	// all these bool options really really cost a lot of executable size!
		461	else if (!strcmp (var, "enable-tcp"))
		462	{
		463	#if ENABLE_TCP
		464	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		465	#endif
		466	}
		467	else if (!strcmp (var, "enable-icmp"))
		468	{
		469	#if ENABLE_ICMP
		470	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		471	#endif
		472	}
		473	else if (!strcmp (var, "enable-dns"))
		474	{
		475	#if ENABLE_DNS
		476	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		477	#endif
		478	}
		479	else if (!strcmp (var, "enable-udp"))
		480	{
		481	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		482	}
		483	else if (!strcmp (var, "enable-rawip"))
		484	{
		485	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		486	}
		487	else if (!strcmp (var, "allow-direct"))
		488	node->allow_direct.push_back (strdup (val));
		489	else if (!strcmp (var, "deny-direct"))
		490	node->deny_direct.push_back (strdup (val));
		491	else if (!strcmp (var, "max-ttl"))
		492	node->max_ttl = atof (val);
		493	else if (!strcmp (var, "max-queue"))
		494	node->max_queue = atoi (val);
		495
		496	// unknown or misplaced
		497	else
		498	return _("unknown configuration directive - ignored");
		499
		500	return 0;
		501	}
		502
		503	void
		504	conf_node::finalise ()
		505	{
		506	if (max_queue < 1)
		507	{
		508	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		509	max_queue = 1;
		510	}
		511
		512	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		513	{
		514	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		515	connectmode = C_ALWAYS;
		516	}
		517	}
		518
		519	void
		520	configuration_parser::parse_argv ()
		521	{
		522	for (int i = 0; i < argc; ++i)
		523	{
		524	char *v = argv [i];
		525
		526	if (!*v)
		527	continue;
		528
		529	char *enode = v;
		530
		531	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		532	enode++;
		533
		534	if (*enode != '.')
		535	enode = 0;
		536
		537	char *wnode = node == &conf.default_node
		538	? 0
		539	: node->nodename;
		540
		541	if ((!wnode && !enode)
		542	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		543	{
		544	const char *warn = parse_line (enode ? enode + 1 : v);
		545
		546	if (warn)
		547	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		548
		549	*v = 0;
		550	}
		551	}
		552	}
		553
		554	void
		555	configuration_parser::parse_file (const char *fname)
		556	{
		557	if (FILE *f = fopen (fname, "r"))
		558	{
171	char line[16384];	559	char line [2048];
172	int lineno = 0;	560	int lineno = 0;
173	char var, val;	561	node = &conf.default_node;
174	conf_node *node = &default_node;
175		562
176	while (fgets (line, sizeof (line), f))	563	while (fgets (line, sizeof (line), f))
177	{	564	{
178	lineno++;	565	lineno++;
179		566
180	{	567	const char *warn = parse_line (line);
181	char *end = line + strlen (line);
182		568
183	while (*end < ' ' && end >= line)	569	if (warn)
184	end--;	570	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
185
186	*++end = 0;
187	}
188
189	char *tok = line;
190
191	retry:
192	var = strtok (tok, "\t =");
193	tok = 0;
194
195	if (!var \|\| !var[0])
196	continue; /* no tokens on this line */
197
198	if (var[0] == '#')
199	continue; /* comment: ignore */
200
201	val = strtok (NULL, "\t\n\r =");
202
203	if (!val \|\| val[0] == '#')
204	{
205	slog (L_WARN,
206	_("no value for variable `%s', at '%s' line %d"),
207	var, fname, lineno);
208	break;
209	}
210
211	if (!strcmp (var, "on"))
212	{
213	if (!::thisnode
214	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
215	\|\| !strcmp (val, ::thisnode))
216	goto retry;
217
218	continue;
219	}
220
221	// truly global
222	if (!strcmp (var, "loglevel"))
223	{
224	loglevel l = string_to_loglevel (val);
225
226	if (l != L_NONE)
227	llevel = l;
228	else
229	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
230	}
231	else if (!strcmp (var, "ip-proto"))
232	ip_proto = atoi (val);
233	else if (!strcmp (var, "icmp-type"))
234	{
235	#if ENABLE_ICMP
236	icmp_type = atoi (val);
237	#endif
238	}
239
240	// per config
241	else if (!strcmp (var, "node"))
242	{
243	default_node.id++;
244
245	node = new conf_node (default_node);
246
247	nodes.push_back (node);
248
249	node->nodename = strdup (val);
250
251	{
252	char *fname;
253	FILE *f;
254
255	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
256
257	f = fopen (fname, "r");
258	if (f)
259	{
260	node->rsa_key = RSA_new ();
261
262	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
263	{
264	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
265	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
266	exit (EXIT_FAILURE);
267	}
268
269	require (RSA_blinding_on (node->rsa_key, 0));
270
271	fclose (f);
272	}
273	else
274	{
275	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
276
277	if (need_keys)
278	exit (EXIT_FAILURE);
279	}
280
281	free (fname);
282	}
283
284	if (::thisnode && !strcmp (node->nodename, ::thisnode))
285	thisnode = node;
286	}
287	else if (!strcmp (var, "private-key"))
288	free (prikeyfile), prikeyfile = strdup (val);
289	else if (!strcmp (var, "ifpersist"))
290	{
291	parse_bool (ifpersist, "ifpersist", true, false);
292	}
293	else if (!strcmp (var, "ifname"))
294	free (ifname), ifname = strdup (val);
295	else if (!strcmp (var, "rekey"))
296	rekey = atoi (val);
297	else if (!strcmp (var, "keepalive"))
298	keepalive = atoi (val);
299	else if (!strcmp (var, "mtu"))
300	mtu = atoi (val);
301	else if (!strcmp (var, "if-up"))
302	free (script_if_up), script_if_up = strdup (val);
303	else if (!strcmp (var, "node-up"))
304	free (script_node_up), script_node_up = strdup (val);
305	else if (!strcmp (var, "node-down"))
306	free (script_node_down), script_node_down = strdup (val);
307	else if (!strcmp (var, "pid-file"))
308	free (pidfilename), pidfilename = strdup (val);
309	else if (!strcmp (var, "http-proxy-host"))
310	{
311	#if ENABLE_HTTP_PROXY
312	free (proxy_host), proxy_host = strdup (val);
313	#endif
314	}
315	else if (!strcmp (var, "http-proxy-port"))
316	{
317	#if ENABLE_HTTP_PROXY
318	proxy_port = atoi (val);
319	#endif
320	}
321	else if (!strcmp (var, "http-proxy-auth"))
322	{
323	#if ENABLE_HTTP_PROXY
324	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
325	#endif
326	}
327
328	/* node-specific, non-defaultable */
329	else if (node != &default_node && !strcmp (var, "hostname"))
330	free (node->hostname), node->hostname = strdup (val);
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "dns-port"))
338	node->dns_port = atoi (val);
339	else if (!strcmp (var, "router-priority"))
340	node->routerprio = atoi (val);
341	else if (!strcmp (var, "connect"))
342	{
343	if (!strcmp (val, "ondemand"))
344	node->connectmode = conf_node::C_ONDEMAND;
345	else if (!strcmp (val, "never"))
346	node->connectmode = conf_node::C_NEVER;
347	else if (!strcmp (val, "always"))
348	node->connectmode = conf_node::C_ALWAYS;
349	else if (!strcmp (val, "disabled"))
350	node->connectmode = conf_node::C_DISABLED;
351	else
352	slog (L_WARN,
353	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
354	var, fname, lineno);
355	}
356	else if (!strcmp (var, "inherit-tos"))
357	{
358	parse_bool (node->inherit_tos, "inherit-tos", true, false);
359	}
360	else if (!strcmp (var, "compress"))
361	{
362	parse_bool (node->compress, "compress", true, false);
363	}
364	// all these bool options really really cost a lot of executable size!
365	else if (!strcmp (var, "enable-tcp"))
366	{
367	#if ENABLE_TCP
368	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
369	#endif
370	}
371	else if (!strcmp (var, "enable-icmp"))
372	{
373	#if ENABLE_ICMP
374	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
375	#endif
376	}
377	else if (!strcmp (var, "enable-dns"))
378	{
379	#if ENABLE_DNS
380	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
381	#endif
382	}
383	else if (!strcmp (var, "enable-udp"))
384	{
385	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
386	}
387	else if (!strcmp (var, "enable-rawip"))
388	{;
389	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
390	}
391
392	// unknown or misplaced
393	else
394	slog (L_WARN,
395	_("unknown or misplaced variable `%s', at '%s' line %d"),
396	var, fname, lineno);
397	}	571	}
398		572
399	fclose (f);	573	fclose (f);
		574
		575	parse_argv ();
400	}	576	}
401	else	577	else
402	{	578	{
403	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	579	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
404	exit (EXIT_FAILURE);	580	exit (EXIT_FAILURE);
405	}	581	}
		582	}
406		583
		584	configuration_parser::configuration_parser (configuration &conf,
		585	bool need_keys,
		586	int argc,
		587	char **argv)
		588	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		589	{
		590	char *fname;
		591
		592	conf.clear ();
		593
		594	asprintf (&fname, "%s/gvpe.conf", confbase);
		595	parse_file (fname);
407	free (fname);	596	free (fname);
408		597
409	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
410		599
411	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
412	if (f)
413	{	601	{
414	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
415		603
416	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
417	{	605	{
418	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
419	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	607	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
420	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
421	}	609	}
422		610
423	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
424		612
425	fclose (f);	613	fclose (f);
426	}	614	}
427	else	615	else
428	{	616	{
…		…
430		618
431	if (need_keys)	619	if (need_keys)
432	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
433	}	621	}
434		622
		623	free (fname);
		624
435	if (need_keys && ::thisnode	625	if (need_keys && ::thisnode
436	&& rsa_key && thisnode && thisnode->rsa_key)	626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
437	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	627	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
438	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
439	{	629	{
440	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	630	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
441	exit (EXIT_FAILURE);	631	exit (EXIT_FAILURE);
442	}	632	}
443		633
444	free (fname);	634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
445	}	636	}
446		637
		638	char *
447	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
448	{	640	{
449	char *fname;	641	char *fname;
450		642
451	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
452		644
…		…
456	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
457	free (rname);	649	free (rname);
458	}	650	}
459		651
460	return fname;	652	return fname;
		653	}
		654
		655	void
		656	conf_node::print ()
		657	{
		658	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		659	id,
		660	id >> 8, id & 0xff,
		661	compress ? 'Y' : 'N',
		662	connectmode == C_ONDEMAND ? "ondemand"
		663	: connectmode == C_NEVER ? "never"
		664	: connectmode == C_ALWAYS ? "always"
		665	: connectmode == C_DISABLED ? "disabled"
		666	: "",
		667	nodename,
		668	protocols,
		669	hostname ? hostname : "",
		670	hostname ? ":" : "",
		671	hostname ? udp_port : 0
		672	);
461	}	673	}
462		674
463	void	675	void
464	configuration::print ()	676	configuration::print ()
465	{	677	{
…		…
472	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
473	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
474	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	686	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
475	printf ("\n");	687	printf ("\n");
476		688
477	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
478	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
479		691
480	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
481	(*i)->print ();	693	(*i)->print ();
482		694
483	printf ("\n");	695	printf ("\n");
484	}	696	}
485		697
486	configuration::configuration ()	698	configuration::configuration ()
487	{	699	{
		700	asprintf (&confbase, "%s/gvpe", CONFDIR);
		701
488	init ();	702	init ();
489	}	703	}
490		704
491	configuration::~configuration ()	705	configuration::~configuration ()
492	{	706	{
493	cleanup ();	707	cleanup ();
494	}	708	}
495		709
496

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Comparing gvpe/src/conf.C (file contents): Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs. Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.55 by root, Sun Mar 6 19:40:28 2011 UTC