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

Comparing gvpe/src/conf.C (file contents):
Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 UTC vs.
Revision 1.56 by root, Sun Mar 6 21:01:36 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 2003 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>
33		45
34	#include <openssl/err.h>	46	#include <openssl/err.h>
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		50	#include <openssl/bn.h>
39	#include "gettext.h"
40		51
41	#include "conf.h"	52	#include "conf.h"
42	#include "slog.h"	53	#include "slog.h"
43	#include "util.h"	54	#include "util.h"
44		55
45	char *confbase;	56	char *confbase;
46	char *thisnode;	57	char *thisnode;
47	char *identname;	58	char *identname;
48	char *pidfilename;
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;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58		70
59	return 0;	71	return 0;
60	}	72	}
61		73
		74	const char *
62	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
63	{	76	{
64	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
65	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
66	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
67	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
68		82
69	return "<unknown>";	83	return "<unknown>";
70	}	84	}
71		85
72	void	86	static bool
73	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
74	{	88	{
75	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 (); )
76	id,	90	if ((i)[0] == '' && !(*i)[1])
77	id >> 8, id & 0xff,	91	return true;
78	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
79	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
80	connectmode == C_NEVER ? "never" :	94
81	connectmode == C_ALWAYS ? "always" : "",	95	return false;
82	nodename,	96	}
83	hostname ? hostname : "",	97
84	hostname ? ":" : "",	98	bool
85	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
86	);	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;
87	}	108	}
88		109
89	conf_node::~conf_node ()	110	conf_node::~conf_node ()
90	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
91	if (rsa_key)	115	if (rsa_key)
92	RSA_free (rsa_key);	116	RSA_free (rsa_key);
93		117
94	free (nodename);	118	free (nodename);
95	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
96	}	126	}
97		127
		128	void
98	void configuration::init ()	129	configuration::init ()
99	{	130	{
100	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
101		132
102	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
103	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
104	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
105	llevel = L_INFO;	137	llevel = L_INFO;
106	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
107	#if ENABLE_ICMP	139	#if ENABLE_ICMP
108	icmp_type = ICMP_ECHOREPLY;	140	icmp_type = ICMP_ECHOREPLY;
109	#endif	141	#endif
110		142
111	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
112	default_node.tcp_port = DEFAULT_UDPPORT;	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
113	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
114	default_node.compress = true;	146	default_node.compress = true;
115	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
116	}	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 ("");
117		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
118	void configuration::cleanup()	169	configuration::cleanup ()
119	{	170	{
120	if (rsa_key)	171	if (rsa_key)
121	RSA_free (rsa_key);	172	RSA_free (rsa_key);
122		173
123	rsa_key = 0;	174	rsa_key = 0;
124		175
125	free (ifname); ifname = 0;	176	free (pidfilename); pidfilename = 0;
		177	free (ifname); ifname = 0;
126	#if ENABLE_HTTP_PROXY	178	#if ENABLE_HTTP_PROXY
127	free (proxy_host); proxy_host = 0;	179	free (proxy_host); proxy_host = 0;
128	free (proxy_auth); proxy_auth = 0;	180	free (proxy_auth); proxy_auth = 0;
129	#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;
130	}	189	}
131		190
132	void	191	void
133	configuration::clear_config ()	192	configuration::clear ()
134	{	193	{
135	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)
136	delete *i;	195	delete *i;
137		196
138	nodes.clear ();	197	nodes.clear ();
139		198
140	cleanup ();	199	cleanup ();
141	init ();	200	init ();
142	}	201	}
143		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
144	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
145	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
146	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
147	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
148	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
149	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
150	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
151	else \	216	else \
152	slog (L_WARN, \
153	_("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"); \
154	name, var, fname, lineno);	218	} while (0)
155		219
156	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
157	{	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	{
158	char *fname;	290	char *fname;
159	FILE *f;	291	FILE *f;
160		292
161	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
162		294
163	asprintf (&fname, "%s/vped.conf", confbase);
164	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
165		299
166	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;
167	{	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	{
168	char line[16384];	559	char line [2048];
169	int lineno = 0;	560	int lineno = 0;
170	char var, val;
171	conf_node *node = &default_node;
172		561
173	while (fgets (line, sizeof (line), f))	562	while (fgets (line, sizeof (line), f))
174	{	563	{
175	lineno++;	564	lineno++;
176		565
177	{	566	const char *warn = parse_line (line);
178	char *end = line + strlen (line);
179		567
180	while (*end < ' ' && end >= line)	568	if (warn)
181	end--;	569	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
182
183	*++end = 0;
184	}
185
186	char *tok = line;
187
188	retry:
189	var = strtok (tok, "\t =");
190	tok = 0;
191
192	if (!var \|\| !var[0])
193	continue; /* no tokens on this line */
194
195	if (var[0] == '#')
196	continue; /* comment: ignore */
197
198	val = strtok (NULL, "\t\n\r =");
199
200	if (!val \|\| val[0] == '#')
201	{
202	slog (L_WARN,
203	_("no value for variable `%s', at '%s' line %d"),
204	var, fname, lineno);
205	break;
206	}
207
208	if (!strcmp (var, "on"))
209	{
210	if (!::thisnode
211	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
212	\|\| !strcmp (val, ::thisnode))
213	goto retry;
214
215	continue;
216	}
217
218	// truly global
219	if (!strcmp (var, "loglevel"))
220	{
221	loglevel l = string_to_loglevel (val);
222
223	if (l != L_NONE)
224	llevel = l;
225	else
226	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
227	}
228	else if (!strcmp (var, "ip-proto"))
229	ip_proto = atoi (val);
230	#if ENABLE_ICMP
231	//TODO: error message
232	else if (!strcmp (var, "icmp-type"))
233	icmp_type = atoi (val);
234	#endif
235
236	// per config
237	else if (!strcmp (var, "node"))
238	{
239	default_node.id++;
240
241	node = new conf_node (default_node);
242
243	nodes.push_back (node);
244
245	node->nodename = strdup (val);
246
247	{
248	char *fname;
249	FILE *f;
250
251	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
252
253	f = fopen (fname, "r");
254	if (f)
255	{
256	node->rsa_key = RSA_new ();
257
258	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
259	{
260	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
261	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
262	exit (1);
263	}
264
265	RSA_blinding_on (node->rsa_key, 0);
266
267	fclose (f);
268	}
269	else
270	{
271	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
272
273	if (need_keys)
274	exit (1);
275	}
276
277	free (fname);
278	}
279
280	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
281	thisnode = node;
282	}
283	else if (!strcmp (var, "private-key"))
284	prikeyfile = strdup (val);
285	else if (!strcmp (var, "ifpersist"))
286	{
287	parse_bool (ifpersist, "ifpersist", true, false);
288	}
289	else if (!strcmp (var, "ifname"))
290	ifname = strdup (val);
291	else if (!strcmp (var, "rekey"))
292	rekey = atoi (val);
293	else if (!strcmp (var, "keepalive"))
294	keepalive = atoi (val);
295	else if (!strcmp (var, "mtu"))
296	mtu = atoi (val);
297	else if (!strcmp (var, "if-up"))
298	script_if_up = strdup (val);
299	else if (!strcmp (var, "node-up"))
300	script_node_up = strdup (val);
301	else if (!strcmp (var, "node-down"))
302	script_node_down = strdup (val);
303	#if ENABLE_HTTP_PROXY
304	else if (!strcmp (var, "http-proxy-host"))
305	proxy_host = strdup (val);
306	else if (!strcmp (var, "http-proxy-port"))
307	proxy_port = atoi (val);
308	else if (!strcmp (var, "http-proxy-auth"))
309	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
310	#endif
311
312	/* node-specific, non-defaultable */
313	else if (node != &default_node && !strcmp (var, "hostname"))
314	{
315	free (node->hostname);
316	node->hostname = strdup (val);
317	}
318
319	/* node-specific, defaultable */
320	else if (!strcmp (var, "udp-port"))
321	node->udp_port = atoi (val);
322	else if (!strcmp (var, "tcp-port"))
323	node->tcp_port = atoi (val);
324	else if (!strcmp (var, "router-priority"))
325	node->routerprio = atoi (val);
326	else if (!strcmp (var, "connect"))
327	{
328	if (!strcmp (val, "ondemand"))
329	node->connectmode = conf_node::C_ONDEMAND;
330	else if (!strcmp (val, "never"))
331	node->connectmode = conf_node::C_NEVER;
332	else if (!strcmp (val, "always"))
333	node->connectmode = conf_node::C_ALWAYS;
334	else if (!strcmp (val, "disabled"))
335	node->connectmode = conf_node::C_DISABLED;
336	else
337	slog (L_WARN,
338	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
339	var, fname, lineno);
340	}
341	else if (!strcmp (var, "inherit-tos"))
342	{
343	parse_bool (node->inherit_tos, "inherit-tos", true, false);
344	}
345	else if (!strcmp (var, "compress"))
346	{
347	parse_bool (node->compress, "compress", true, false);
348	}
349	// all these bool options really really cost a lot of executable size!
350	else if (!strcmp (var, "enable-tcp"))
351	{
352	#if ENABLE_TCP
353	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
354	#endif
355	}
356	else if (!strcmp (var, "enable-icmp"))
357	{
358	#if ENABLE_ICMP
359	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
360	#endif
361	}
362	else if (!strcmp (var, "enable-udp"))
363	{
364	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
365	}
366	else if (!strcmp (var, "enable-rawip"))
367	{
368	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
369	}
370
371	// unknown or misplaced
372	else
373	slog (L_WARN,
374	_("unknown or misplaced variable `%s', at '%s' line %d"),
375	var, fname, lineno);
376	}	570	}
377		571
378	fclose (f);	572	fclose (f);
		573
		574	parse_argv ();
379	}	575	}
380	else	576	else
381	{	577	{
382	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));
383	exit (1);	579	exit (EXIT_FAILURE);
384	}	580	}
		581	}
385		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);
386	free (fname);	596	free (fname);
387		597
388	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
389		599
390	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
391	if (f)
392	{	601	{
393	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
394		603
395	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
396	{	605	{
397	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
398	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));
399	exit (1);	608	exit (EXIT_FAILURE);
400	}	609	}
401		610
402	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
403		612
404	fclose (f);	613	fclose (f);
405	}	614	}
406	else	615	else
407	{	616	{
408	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	617	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
409		618
410	if (need_keys)	619	if (need_keys)
411	exit (1);	620	exit (EXIT_FAILURE);
412	}	621	}
413		622
414	free (fname);	623	free (fname);
415	}
416		624
		625	if (need_keys && ::thisnode
		626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		627	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		629	{
		630	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		631	exit (EXIT_FAILURE);
		632	}
		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
417	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
418	{	640	{
419	char *fname;	641	char *fname;
420		642
421	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
422		644
…		…
426	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
427	free (rname);	649	free (rname);
428	}	650	}
429		651
430	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	);
431	}	673	}
432		674
433	void	675	void
434	configuration::print ()	676	configuration::print ()
435	{	677	{
…		…
442	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
443	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
444	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);
445	printf ("\n");	687	printf ("\n");
446		688
447	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
448	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
449		691
450	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
451	(*i)->print ();	693	(*i)->print ();
452		694
453	printf ("\n");	695	printf ("\n");
454	}	696	}
455		697
456	configuration::configuration ()	698	configuration::configuration ()
457	{	699	{
		700	asprintf (&confbase, "%s/gvpe", CONFDIR);
		701
458	init ();	702	init ();
459	}	703	}
460		704
461	configuration::~configuration ()	705	configuration::~configuration ()
462	{	706	{
463	cleanup ();	707	cleanup ();
464	}	708	}
465		709
466

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Comparing gvpe/src/conf.C (file contents): Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 UTC vs. Revision 1.56 by root, Sun Mar 6 21:01:36 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 UTC vs.
Revision 1.56 by root, Sun Mar 6 21:01:36 2011 UTC