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

Comparing gvpe/src/conf.C (file contents):
Revision 1.18 by pcg, Thu Oct 16 02:41:21 2003 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

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

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Comparing gvpe/src/conf.C (file contents): Revision 1.18 by pcg, Thu Oct 16 02:41:21 2003 UTC vs. Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.18 by pcg, Thu Oct 16 02:41:21 2003 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC