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

Comparing gvpe/src/conf.C (file contents):
Revision 1.22 by pcg, Thu Jan 29 18:55:10 2004 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) 2003-2004 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	char *pidfilename;
50		59
51	struct configuration conf;	60	struct configuration conf;
52		61
		62	u8
53	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
54	{	64	{
		65	#if 1//D2
		66	if (protset & PROT_IPv42 ) return PROT_IPv42;
		67	#endif
55	if (protset & PROT_IPv4 ) return PROT_IPv4;	68	if (protset & PROT_IPv4 ) return PROT_IPv4;
56	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
57	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
58	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		72	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		73
60	return 0;	74	return 0;
61	}	75	}
62		76
		77	const char *
63	const char *strprotocol (u8 protocol)	78	strprotocol (u8 protocol)
64	{	79	{
		80	#if 1//D2
		81	if (protocol & PROT_IPv42 ) return "rawip2";
		82	#endif
65	if (protocol & PROT_IPv4 ) return "rawip";	83	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	84	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	85	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	86	if (protocol & PROT_TCPv4 ) return "tcp";
		87	if (protocol & PROT_DNSv4 ) return "dns";
69		88
70	return "<unknown>";	89	return "<unknown>";
71	}	90	}
72		91
73	void	92	static bool
74	conf_node::print ()	93	match_list (const vector<const char > &list, const char str)
75	{	94	{
76	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 (); )
77	id,	96	if ((i)[0] == '' && !(*i)[1])
78	id >> 8, id & 0xff,	97	return true;
79	compress ? 'Y' : 'N',	98	else if (!strcmp (*i, str))
80	connectmode == C_ONDEMAND ? "ondemand" :	99	return true;
81	connectmode == C_NEVER ? "never" :	100
82	connectmode == C_ALWAYS ? "always" : "",	101	return false;
83	nodename,	102	}
84	hostname ? hostname : "",	103
85	hostname ? ":" : "",	104	bool
86	hostname ? udp_port : 0	105	conf_node::may_direct (struct conf_node *other)
87	);	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;
88	}	114	}
89		115
90	conf_node::~conf_node ()	116	conf_node::~conf_node ()
91	{	117	{
		118	#if 0
		119	// does not work, because string pointers etc. are shared
		120	// is not called, however
92	if (rsa_key)	121	if (rsa_key)
93	RSA_free (rsa_key);	122	RSA_free (rsa_key);
94		123
95	free (nodename);	124	free (nodename);
96	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
97	}	132	}
98		133
		134	void
99	void configuration::init ()	135	configuration::init ()
100	{	136	{
101	memset (this, 0, sizeof (*this));	137	memset (this, 0, sizeof (*this));
102		138
103	mtu = DEFAULT_MTU;	139	mtu = DEFAULT_MTU;
		140	nfmark = 0;
104	rekey = DEFAULT_REKEY;	141	rekey = DEFAULT_REKEY;
105	keepalive = DEFAULT_KEEPALIVE;	142	keepalive = DEFAULT_KEEPALIVE;
106	llevel = L_INFO;	143	llevel = L_INFO;
107	ip_proto = IPPROTO_GRE;	144	ip_proto = IPPROTO_GRE;
		145	#if 1 //D2
		146	ip2_proto = 7;
		147	#endif
108	#if ENABLE_ICMP	148	#if ENABLE_ICMP
109	icmp_type = ICMP_ECHOREPLY;	149	icmp_type = ICMP_ECHOREPLY;
110	#endif	150	#endif
111		151
112	default_node.udp_port = DEFAULT_UDPPORT;	152	default_node.udp_port = DEFAULT_UDPPORT;
113	default_node.tcp_port = DEFAULT_UDPPORT;	153	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
114	default_node.connectmode = conf_node::C_ALWAYS;	154	default_node.connectmode = conf_node::C_ALWAYS;
115	default_node.compress = true;	155	default_node.compress = true;
116	default_node.protocols = PROT_UDPv4;	156	default_node.protocols = 0;
117	}	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 ("");
118		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
119	void configuration::cleanup()	178	configuration::cleanup ()
120	{	179	{
121	if (rsa_key)	180	if (rsa_key)
122	RSA_free (rsa_key);	181	RSA_free (rsa_key);
123		182
124	rsa_key = 0;	183	rsa_key = 0;
125		184
126	free (ifname); ifname = 0;	185	free (pidfilename); pidfilename = 0;
		186	free (ifname); ifname = 0;
127	#if ENABLE_HTTP_PROXY	187	#if ENABLE_HTTP_PROXY
128	free (proxy_host); proxy_host = 0;	188	free (proxy_host); proxy_host = 0;
129	free (proxy_auth); proxy_auth = 0;	189	free (proxy_auth); proxy_auth = 0;
130	#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;
131	}	198	}
132		199
133	void	200	void
134	configuration::clear_config ()	201	configuration::clear ()
135	{	202	{
136	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)
137	delete *i;	204	delete *i;
138		205
139	nodes.clear ();	206	nodes.clear ();
140		207
141	cleanup ();	208	cleanup ();
142	init ();	209	init ();
143	}	210	}
144		211
		212	//static bool
		213	//is_true (const char *name)
		214	//{
		215	//re
		216	//}
		217
145	#define parse_bool(target,name,trueval,falseval) \	218	#define parse_bool(target,name,trueval,falseval) do { \
146	if (!strcmp (val, "yes")) target = trueval; \	219	if (!strcmp (val, "yes")) target = trueval; \
147	else if (!strcmp (val, "no")) target = falseval; \	220	else if (!strcmp (val, "no")) target = falseval; \
148	else if (!strcmp (val, "true")) target = trueval; \	221	else if (!strcmp (val, "true")) target = trueval; \
149	else if (!strcmp (val, "false")) target = falseval; \	222	else if (!strcmp (val, "false")) target = falseval; \
150	else if (!strcmp (val, "on")) target = trueval; \	223	else if (!strcmp (val, "on")) target = trueval; \
151	else if (!strcmp (val, "off")) target = falseval; \	224	else if (!strcmp (val, "off")) target = falseval; \
152	else \	225	else \
153	slog (L_WARN, \
154	_("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"); \
155	name, var, fname, lineno);	227	} while (0)
156		228
157	void configuration::read_config (bool need_keys)	229	const char *
		230	configuration_parser::parse_line (char *line)
158	{	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	{
159	char *fname;	303	char *fname;
160	FILE *f;	304	FILE *f;
161		305
162	clear_config ();	306	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
163		307
164	asprintf (&fname, "%s/vped.conf", confbase);
165	f = fopen (fname, "r");	308	f = fopen (fname, "r");
		309	if (f)
		310	{
		311	node->rsa_key = RSA_new ();
166		312
167	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;
168	{	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	{
169	char line[16384];	578	char line [2048];
170	int lineno = 0;	579	int lineno = 0;
171	char var, val;
172	conf_node *node = &default_node;
173		580
174	while (fgets (line, sizeof (line), f))	581	while (fgets (line, sizeof (line), f))
175	{	582	{
176	lineno++;	583	lineno++;
177		584
178	{	585	const char *warn = parse_line (line);
179	char *end = line + strlen (line);
180		586
181	while (*end < ' ' && end >= line)	587	if (warn)
182	end--;	588	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
183
184	*++end = 0;
185	}
186
187	char *tok = line;
188
189	retry:
190	var = strtok (tok, "\t =");
191	tok = 0;
192
193	if (!var \|\| !var[0])
194	continue; /* no tokens on this line */
195
196	if (var[0] == '#')
197	continue; /* comment: ignore */
198
199	val = strtok (NULL, "\t\n\r =");
200
201	if (!val \|\| val[0] == '#')
202	{
203	slog (L_WARN,
204	_("no value for variable `%s', at '%s' line %d"),
205	var, fname, lineno);
206	break;
207	}
208
209	if (!strcmp (var, "on"))
210	{
211	if (!::thisnode
212	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
213	\|\| !strcmp (val, ::thisnode))
214	goto retry;
215
216	continue;
217	}
218
219	// truly global
220	if (!strcmp (var, "loglevel"))
221	{
222	loglevel l = string_to_loglevel (val);
223
224	if (l != L_NONE)
225	llevel = l;
226	else
227	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
228	}
229	else if (!strcmp (var, "ip-proto"))
230	ip_proto = atoi (val);
231	else if (!strcmp (var, "icmp-type"))
232	{
233	#if ENABLE_ICMP
234	icmp_type = atoi (val);
235	#endif
236	}
237
238	// per config
239	else if (!strcmp (var, "node"))
240	{
241	default_node.id++;
242
243	node = new conf_node (default_node);
244
245	nodes.push_back (node);
246
247	node->nodename = strdup (val);
248
249	{
250	char *fname;
251	FILE *f;
252
253	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
254
255	f = fopen (fname, "r");
256	if (f)
257	{
258	node->rsa_key = RSA_new ();
259
260	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
261	{
262	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
263	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
264	exit (EXIT_FAILURE);
265	}
266
267	require (RSA_blinding_on (node->rsa_key, 0));
268
269	fclose (f);
270	}
271	else
272	{
273	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
274
275	if (need_keys)
276	exit (EXIT_FAILURE);
277	}
278
279	free (fname);
280	}
281
282	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
283	thisnode = node;
284	}
285	else if (!strcmp (var, "private-key"))
286	prikeyfile = strdup (val);
287	else if (!strcmp (var, "ifpersist"))
288	{
289	parse_bool (ifpersist, "ifpersist", true, false);
290	}
291	else if (!strcmp (var, "ifname"))
292	ifname = strdup (val);
293	else if (!strcmp (var, "rekey"))
294	rekey = atoi (val);
295	else if (!strcmp (var, "keepalive"))
296	keepalive = atoi (val);
297	else if (!strcmp (var, "mtu"))
298	mtu = atoi (val);
299	else if (!strcmp (var, "if-up"))
300	script_if_up = strdup (val);
301	else if (!strcmp (var, "node-up"))
302	script_node_up = strdup (val);
303	else if (!strcmp (var, "node-down"))
304	script_node_down = strdup (val);
305	else if (!strcmp (var, "http-proxy-host"))
306	{
307	#if ENABLE_HTTP_PROXY
308	proxy_host = strdup (val);
309	#endif
310	}
311	else if (!strcmp (var, "http-proxy-port"))
312	{
313	#if ENABLE_HTTP_PROXY
314	proxy_port = atoi (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-auth"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
321	#endif
322	}
323
324	/* node-specific, non-defaultable */
325	else if (node != &default_node && !strcmp (var, "hostname"))
326	{
327	free (node->hostname);
328	node->hostname = strdup (val);
329	}
330
331	/* node-specific, defaultable */
332	else if (!strcmp (var, "udp-port"))
333	node->udp_port = atoi (val);
334	else if (!strcmp (var, "tcp-port"))
335	node->tcp_port = atoi (val);
336	else if (!strcmp (var, "router-priority"))
337	node->routerprio = atoi (val);
338	else if (!strcmp (var, "connect"))
339	{
340	if (!strcmp (val, "ondemand"))
341	node->connectmode = conf_node::C_ONDEMAND;
342	else if (!strcmp (val, "never"))
343	node->connectmode = conf_node::C_NEVER;
344	else if (!strcmp (val, "always"))
345	node->connectmode = conf_node::C_ALWAYS;
346	else if (!strcmp (val, "disabled"))
347	node->connectmode = conf_node::C_DISABLED;
348	else
349	slog (L_WARN,
350	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
351	var, fname, lineno);
352	}
353	else if (!strcmp (var, "inherit-tos"))
354	{
355	parse_bool (node->inherit_tos, "inherit-tos", true, false);
356	}
357	else if (!strcmp (var, "compress"))
358	{
359	parse_bool (node->compress, "compress", true, false);
360	}
361	// all these bool options really really cost a lot of executable size!
362	else if (!strcmp (var, "enable-tcp"))
363	{
364	#if ENABLE_TCP
365	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
366	#endif
367	}
368	else if (!strcmp (var, "enable-icmp"))
369	{
370	#if ENABLE_ICMP
371	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
372	#endif
373	}
374	else if (!strcmp (var, "enable-udp"))
375	{
376	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
377	}
378	else if (!strcmp (var, "enable-rawip"))
379	{
380	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
381	}
382
383	// unknown or misplaced
384	else
385	slog (L_WARN,
386	_("unknown or misplaced variable `%s', at '%s' line %d"),
387	var, fname, lineno);
388	}	589	}
389		590
390	fclose (f);	591	fclose (f);
		592
		593	parse_argv ();
391	}	594	}
392	else	595	else
393	{	596	{
394	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));
395	exit (EXIT_FAILURE);	598	exit (EXIT_FAILURE);
396	}	599	}
		600	}
397		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);
398	free (fname);	615	free (fname);
399		616
400	fname = config_filename (prikeyfile, "hostkey");	617	fname = conf.config_filename (conf.prikeyfile, "hostkey");
401		618
402	f = fopen (fname, "r");	619	if (FILE *f = fopen (fname, "r"))
403	if (f)
404	{	620	{
405	rsa_key = RSA_new ();	621	conf.rsa_key = RSA_new ();
406		622
407	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	623	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
408	{	624	{
409	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	625	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
410	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));
411	exit (EXIT_FAILURE);	627	exit (EXIT_FAILURE);
412	}	628	}
413		629
414	require (RSA_blinding_on (rsa_key, 0));	630	require (RSA_blinding_on (conf.rsa_key, 0));
415		631
416	fclose (f);	632	fclose (f);
417	}	633	}
418	else	634	else
419	{	635	{
…		…
421		637
422	if (need_keys)	638	if (need_keys)
423	exit (EXIT_FAILURE);	639	exit (EXIT_FAILURE);
424	}	640	}
425		641
		642	free (fname);
		643
		644	if (need_keys && ::thisnode
426	if (need_keys && rsa_key && thisnode && thisnode->rsa_key)	645	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
427	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	646	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
428	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	647	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
429	{	648	{
430	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	649	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
431	exit (EXIT_FAILURE);	650	exit (EXIT_FAILURE);
432	}	651	}
433		652
434	free (fname);	653	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		654	(*i)->finalise ();
435	}	655	}
436		656
		657	char *
437	char configuration::config_filename (const char name, const char *dflt)	658	configuration::config_filename (const char name, const char dflt)
438	{	659	{
439	char *fname;	660	char *fname;
440		661
441	asprintf (&fname, name ? name : dflt, ::thisnode);	662	asprintf (&fname, name ? name : dflt, ::thisnode);
442		663
…		…
446	asprintf (&fname, "%s/%s", confbase, rname);	667	asprintf (&fname, "%s/%s", confbase, rname);
447	free (rname);	668	free (rname);
448	}	669	}
449		670
450	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	);
451	}	692	}
452		693
453	void	694	void
454	configuration::print ()	695	configuration::print ()
455	{	696	{
…		…
462	printf (_("interface: %s\n"), ifname);	703	printf (_("interface: %s\n"), ifname);
463	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	704	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
464	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);
465	printf ("\n");	706	printf ("\n");
466		707
467	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	708	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
468	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	709	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
469		710
470	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	711	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
471	(*i)->print ();	712	(*i)->print ();
472		713
473	printf ("\n");	714	printf ("\n");
474	}	715	}
475		716
476	configuration::configuration ()	717	configuration::configuration ()
477	{	718	{
		719	asprintf (&confbase, "%s/gvpe", CONFDIR);
		720
478	init ();	721	init ();
479	}	722	}
480		723
481	configuration::~configuration ()	724	configuration::~configuration ()
482	{	725	{
483	cleanup ();	726	cleanup ();
484	}	727	}
485		728
486

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Comparing gvpe/src/conf.C (file contents): Revision 1.22 by pcg, Thu Jan 29 18:55:10 2004 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 1.22 by pcg, Thu Jan 29 18:55:10 2004 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC