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

Comparing gvpe/src/conf.C (file contents):
Revision 1.30 by pcg, Thu Mar 3 07:24:57 2005 UTC vs.
Revision 1.58 by root, Tue Jan 17 21:38:10 2012 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);
98	#if ENABLE_DNS	121	#if ENABLE_DNS
99	free (domain);	122	free (domain);
100	free (dns_hostname);	123	free (dns_hostname);
101	#endif	124	#endif
		125	#endif
102	}	126	}
103		127
		128	void
104	void configuration::init ()	129	configuration::init ()
105	{	130	{
106	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
107		132
108	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
109	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	137	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
113	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	146	default_node.compress = true;
121	default_node.protocols = 0;	147	default_node.protocols = 0;
122	default_node.max_retry = DEFAULT_MAX_RETRY;	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 ("");
123		152
124	#if ENABLE_DNS	153	#if ENABLE_DNS
125	default_node.dns_port = 53;	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");
126	dns_forw_port = 53;	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;
127	#endif	163	#endif
128		164
129	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	165	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
130	}	166	}
131		167
		168	void
132	void configuration::cleanup()	169	configuration::cleanup ()
133	{	170	{
134	if (rsa_key)	171	if (rsa_key)
135	RSA_free (rsa_key);	172	RSA_free (rsa_key);
136		173
137	rsa_key = 0;	174	rsa_key = 0;
138		175
139	free (pidfilename); pidfilename = 0;	176	free (pidfilename); pidfilename = 0;
140	free (ifname); ifname = 0;	177	free (ifname); ifname = 0;
141	#if ENABLE_HTTP_PROXY	178	#if ENABLE_HTTP_PROXY
142	free (proxy_host); proxy_host = 0;	179	free (proxy_host); proxy_host = 0;
143	free (proxy_auth); proxy_auth = 0;	180	free (proxy_auth); proxy_auth = 0;
144	#endif	181	#endif
145	#if ENABLE_DNS	182	#if ENABLE_DNS
146	free (dns_forw_host); dns_forw_host = 0;	183	free (dns_forw_host); dns_forw_host = 0;
147	#endif	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;
148	}	189	}
149		190
150	void	191	void
151	configuration::clear_config ()	192	configuration::clear ()
152	{	193	{
153	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)
154	delete *i;	195	delete *i;
155		196
156	nodes.clear ();	197	nodes.clear ();
157		198
158	cleanup ();	199	cleanup ();
159	init ();	200	init ();
160	}	201	}
161		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
162	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
163	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
164	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
165	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
166	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
167	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
168	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
169	else \	216	else \
170	slog (L_WARN, \
171	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	217	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
172	name, var, fname, lineno);	218	} while (0)
173		219
174	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
175	{	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, ignored");
		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	{
176	char *fname;	290	char *fname;
177	FILE *f;	291	FILE *f;
178		292
179	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
180		294
181	asprintf (&fname, "%s/gvpe.conf", confbase);
182	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
183		299
184	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;
185	{	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	{
186	char line[16384];	559	char line [2048];
187	int lineno = 0;	560	int lineno = 0;
188	char var, val;
189	conf_node *node = &default_node;
190		561
191	while (fgets (line, sizeof (line), f))	562	while (fgets (line, sizeof (line), f))
192	{	563	{
193	lineno++;	564	lineno++;
194		565
195	{	566	const char *warn = parse_line (line);
196	char *end = line + strlen (line);
197		567
198	while (*end < ' ' && end >= line)	568	if (warn)
199	end--;	569	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
200
201	*++end = 0;
202	}
203
204	char *tok = line;
205
206	retry:
207	var = strtok (tok, "\t =");
208	tok = 0;
209
210	if (!var \|\| !var[0])
211	continue; /* no tokens on this line */
212
213	if (var[0] == '#')
214	continue; /* comment: ignore */
215
216	val = strtok (NULL, "\t\n\r =");
217
218	if (!val \|\| val[0] == '#')
219	{
220	slog (L_WARN,
221	_("no value for variable `%s', at '%s' line %d"),
222	var, fname, lineno);
223	break;
224	}
225
226	if (!strcmp (var, "on"))
227	{
228	if (!::thisnode
229	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
230	\|\| !strcmp (val, ::thisnode))
231	goto retry;
232
233	continue;
234	}
235
236	// truly global
237	if (!strcmp (var, "loglevel"))
238	{
239	loglevel l = string_to_loglevel (val);
240
241	if (l != L_NONE)
242	llevel = l;
243	else
244	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
245	}
246	else if (!strcmp (var, "ip-proto"))
247	ip_proto = atoi (val);
248	else if (!strcmp (var, "icmp-type"))
249	{
250	#if ENABLE_ICMP
251	icmp_type = atoi (val);
252	#endif
253	}
254
255	// per config
256	else if (!strcmp (var, "node"))
257	{
258	default_node.id++;
259
260	node = new conf_node (default_node);
261
262	nodes.push_back (node);
263
264	node->nodename = strdup (val);
265
266	{
267	char *fname;
268	FILE *f;
269
270	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
271
272	f = fopen (fname, "r");
273	if (f)
274	{
275	node->rsa_key = RSA_new ();
276
277	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
278	{
279	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
280	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
281	exit (EXIT_FAILURE);
282	}
283
284	require (RSA_blinding_on (node->rsa_key, 0));
285
286	fclose (f);
287	}
288	else
289	{
290	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
291
292	if (need_keys)
293	exit (EXIT_FAILURE);
294	}
295
296	free (fname);
297	}
298
299	if (::thisnode && !strcmp (node->nodename, ::thisnode))
300	thisnode = node;
301	}
302	else if (!strcmp (var, "private-key"))
303	free (prikeyfile), prikeyfile = strdup (val);
304	else if (!strcmp (var, "ifpersist"))
305	{
306	parse_bool (ifpersist, "ifpersist", true, false);
307	}
308	else if (!strcmp (var, "ifname"))
309	free (ifname), ifname = strdup (val);
310	else if (!strcmp (var, "rekey"))
311	rekey = atoi (val);
312	else if (!strcmp (var, "keepalive"))
313	keepalive = atoi (val);
314	else if (!strcmp (var, "mtu"))
315	mtu = atoi (val);
316	else if (!strcmp (var, "if-up"))
317	free (script_if_up), script_if_up = strdup (val);
318	else if (!strcmp (var, "node-up"))
319	free (script_node_up), script_node_up = strdup (val);
320	else if (!strcmp (var, "node-down"))
321	free (script_node_down), script_node_down = strdup (val);
322	else if (!strcmp (var, "pid-file"))
323	free (pidfilename), pidfilename = strdup (val);
324	#if ENABLE_DNS
325	else if (!strcmp (var, "dns-forw-host"))
326	free (dns_forw_host), dns_forw_host = strdup (val);
327	else if (!strcmp (var, "dns-forw-port"))
328	dns_forw_port = atoi (val);
329	#endif
330	else if (!strcmp (var, "http-proxy-host"))
331	{
332	#if ENABLE_HTTP_PROXY
333	free (proxy_host), proxy_host = strdup (val);
334	#endif
335	}
336	else if (!strcmp (var, "http-proxy-port"))
337	{
338	#if ENABLE_HTTP_PROXY
339	proxy_port = atoi (val);
340	#endif
341	}
342	else if (!strcmp (var, "http-proxy-auth"))
343	{
344	#if ENABLE_HTTP_PROXY
345	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
346	#endif
347	}
348
349	/* node-specific, non-defaultable */
350	else if (node != &default_node && !strcmp (var, "hostname"))
351	free (node->hostname), node->hostname = strdup (val);
352
353	/* node-specific, defaultable */
354	else if (!strcmp (var, "udp-port"))
355	node->udp_port = atoi (val);
356	else if (!strcmp (var, "tcp-port"))
357	node->tcp_port = atoi (val);
358	#if ENABLE_DNS
359	else if (!strcmp (var, "dns-hostname"))
360	free (node->dns_hostname), node->dns_hostname = strdup (val);
361	else if (!strcmp (var, "dns-port"))
362	node->dns_port = atoi (val);
363	#endif
364	else if (!strcmp (var, "dns-domain"))
365	{
366	#if ENABLE_DNS
367	free (node->domain), node->domain = strdup (val);
368	#endif
369	}
370	else if (!strcmp (var, "router-priority"))
371	node->routerprio = atoi (val);
372	else if (!strcmp (var, "max-retry"))
373	node->max_retry = atoi (val);
374	else if (!strcmp (var, "connect"))
375	{
376	if (!strcmp (val, "ondemand"))
377	node->connectmode = conf_node::C_ONDEMAND;
378	else if (!strcmp (val, "never"))
379	node->connectmode = conf_node::C_NEVER;
380	else if (!strcmp (val, "always"))
381	node->connectmode = conf_node::C_ALWAYS;
382	else if (!strcmp (val, "disabled"))
383	node->connectmode = conf_node::C_DISABLED;
384	else
385	slog (L_WARN,
386	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
387	var, fname, lineno);
388	}
389	else if (!strcmp (var, "inherit-tos"))
390	{
391	parse_bool (node->inherit_tos, "inherit-tos", true, false);
392	}
393	else if (!strcmp (var, "compress"))
394	{
395	parse_bool (node->compress, "compress", true, false);
396	}
397	// all these bool options really really cost a lot of executable size!
398	else if (!strcmp (var, "enable-tcp"))
399	{
400	#if ENABLE_TCP
401	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
402	#endif
403	}
404	else if (!strcmp (var, "enable-icmp"))
405	{
406	#if ENABLE_ICMP
407	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
408	#endif
409	}
410	else if (!strcmp (var, "enable-dns"))
411	{
412	#if ENABLE_DNS
413	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
414	#endif
415	}
416	else if (!strcmp (var, "enable-udp"))
417	{
418	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
419	}
420	else if (!strcmp (var, "enable-rawip"))
421	{
422	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
423	}
424
425	// unknown or misplaced
426	else
427	slog (L_WARN,
428	_("unknown or misplaced variable `%s', at '%s' line %d"),
429	var, fname, lineno);
430	}	570	}
431		571
432	fclose (f);	572	fclose (f);
		573
		574	parse_argv ();
433	}	575	}
434	else	576	else
435	{	577	{
436	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	578	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
437	exit (EXIT_FAILURE);	579	exit (EXIT_FAILURE);
438	}	580	}
		581	}
439		582
		583	configuration_parser::configuration_parser (configuration &conf,
		584	bool need_keys,
		585	int argc,
		586	char **argv)
		587	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		588	{
		589	char *fname;
		590
		591	conf.clear ();
		592	node = &conf.default_node;
		593
		594	asprintf (&fname, "%s/gvpe.conf", confbase);
		595	parse_file (fname);
440	free (fname);	596	free (fname);
441		597
442	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
443		599
444	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
445	if (f)
446	{	601	{
447	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
448		603
449	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
450	{	605	{
451	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
452	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));
453	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
454	}	609	}
455		610
456	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
457		612
458	fclose (f);	613	fclose (f);
459	}	614	}
460	else	615	else
461	{	616	{
…		…
463		618
464	if (need_keys)	619	if (need_keys)
465	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
466	}	621	}
467		622
		623	free (fname);
		624
468	if (need_keys && ::thisnode	625	if (need_keys && ::thisnode
469	&& rsa_key && thisnode && thisnode->rsa_key)	626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
470	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
471	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
472	{	629	{
473	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);
474	exit (EXIT_FAILURE);	631	exit (EXIT_FAILURE);
475	}	632	}
476		633
477	free (fname);	634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
478	}	636	}
479		637
		638	char *
480	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
481	{	640	{
482	char *fname;	641	char *fname;
483		642
484	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
485		644
…		…
489	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
490	free (rname);	649	free (rname);
491	}	650	}
492		651
493	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	);
494	}	673	}
495		674
496	void	675	void
497	configuration::print ()	676	configuration::print ()
498	{	677	{
…		…
505	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
506	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
507	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);
508	printf ("\n");	687	printf ("\n");
509		688
510	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
511	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
512		691
513	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
514	(*i)->print ();	693	(*i)->print ();
515		694
516	printf ("\n");	695	printf ("\n");
…		…
526	configuration::~configuration ()	705	configuration::~configuration ()
527	{	706	{
528	cleanup ();	707	cleanup ();
529	}	708	}
530		709
531

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Comparing gvpe/src/conf.C (file contents): Revision 1.30 by pcg, Thu Mar 3 07:24:57 2005 UTC vs. Revision 1.58 by root, Tue Jan 17 21:38:10 2012 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.30 by pcg, Thu Mar 3 07:24:57 2005 UTC vs.
Revision 1.58 by root, Tue Jan 17 21:38:10 2012 UTC