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

Comparing gvpe/src/conf.C (file contents):
Revision 1.29 by pcg, Tue Mar 1 06:27:20 2005 UTC vs.
Revision 1.60 by root, Sat Jul 13 04:10:29 2013 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>
26	#include <errno.h>	38	#include <errno.h>
27	#include <netdb.h>	39	#include <netdb.h>
28	#include <sys/stat.h>	40	#include <sys/stat.h>
29	#include <sys/types.h>	41	#include <sys/types.h>
30	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
31		44
32	#include "netcompat.h"	45	#include "netcompat.h"
33		46
34	#include <openssl/err.h>	47	#include <openssl/err.h>
35	#include <openssl/pem.h>	48	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	50	#include <openssl/rand.h>
38	#include <openssl/bn.h>	51	#include <openssl/bn.h>
39		52
40	#include "gettext.h"
41
42	#include "conf.h"	53	#include "conf.h"
43	#include "slog.h"	54	#include "slog.h"
44	#include "util.h"	55	#include "util.h"
45		56
46	char *confbase;	57	char *confbase;
47	char *thisnode;	58	char *thisnode;
48	char *identname;	59	char *identname;
49		60
50	struct configuration conf;	61	struct configuration conf;
51		62
		63	u8
52	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
53	{	65	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		71
60	return 0;	72	return 0;
61	}	73	}
62		74
		75	const char *
63	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
64	{	77	{
65	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	82	if (protocol & PROT_DNSv4 ) return "dns";
70		83
71	return "<unknown>";	84	return "<unknown>";
72	}	85	}
73		86
74	void	87	static bool
75	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
76	{	89	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	91	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	92	return true;
80	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
82	connectmode == C_NEVER ? "never" :	95
83	connectmode == C_ALWAYS ? "always" : "",	96	return false;
84	nodename,	97	}
85	hostname ? hostname : "",	98
86	hostname ? ":" : "",	99	bool
87	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
88	);	101	{
		102	if (match_list (allow_direct, other->nodename))
		103	return true;
		104
		105	if (match_list (deny_direct, other->nodename))
		106	return false;
		107
		108	return true;
89	}	109	}
90		110
91	conf_node::~conf_node ()	111	conf_node::~conf_node ()
92	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
93	if (rsa_key)	116	if (rsa_key)
94	RSA_free (rsa_key);	117	RSA_free (rsa_key);
95		118
96	free (nodename);	119	free (nodename);
97	free (hostname);	120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
98	free (domain);	123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
99	}	127	}
100		128
		129	void
101	void configuration::init ()	130	configuration::init ()
102	{	131	{
103	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
104		133
105	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
106	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
107	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
108	llevel = L_INFO;	138	llevel = L_INFO;
109	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
110	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
115	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
117	default_node.compress = true;	147	default_node.compress = true;
118	default_node.protocols = 0;	148	default_node.protocols = 0;
119	default_node.max_retry = DEFAULT_MAX_RETRY;	149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
120		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
121	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
122	}	169	}
123		170
		171	void
124	void configuration::cleanup()	172	configuration::cleanup ()
125	{	173	{
126	if (rsa_key)	174	if (rsa_key)
127	RSA_free (rsa_key);	175	RSA_free (rsa_key);
128		176
129	rsa_key = 0;	177	rsa_key = 0;
130		178
		179	free (seed_dev); seed_dev = 0;
131	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
132	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
133	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
134	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
135	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
136	#endif	185	#endif
137	#if ENABLE_DNS	186	#if ENABLE_DNS
138	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
139	#endif	188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
140	}	194	}
141		195
142	void	196	void
143	configuration::clear_config ()	197	configuration::clear ()
144	{	198	{
145	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
146	delete *i;	200	delete *i;
147		201
148	nodes.clear ();	202	nodes.clear ();
149		203
150	cleanup ();	204	cleanup ();
151	init ();	205	init ();
152	}	206	}
153		207
		208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
154	#define parse_bool(target,name,trueval,falseval) \	214	#define parse_bool(target,name,trueval,falseval) do { \
155	if (!strcmp (val, "yes")) target = trueval; \	215	if (!strcmp (val, "yes")) target = trueval; \
156	else if (!strcmp (val, "no")) target = falseval; \	216	else if (!strcmp (val, "no")) target = falseval; \
157	else if (!strcmp (val, "true")) target = trueval; \	217	else if (!strcmp (val, "true")) target = trueval; \
158	else if (!strcmp (val, "false")) target = falseval; \	218	else if (!strcmp (val, "false")) target = falseval; \
159	else if (!strcmp (val, "on")) target = trueval; \	219	else if (!strcmp (val, "on")) target = trueval; \
160	else if (!strcmp (val, "off")) target = falseval; \	220	else if (!strcmp (val, "off")) target = falseval; \
161	else \	221	else \
162	slog (L_WARN, \
163	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	222	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
164	name, var, fname, lineno);	223	} while (0)
165		224
166	void configuration::read_config (bool need_keys)	225	const char *
		226	configuration_parser::parse_line (char *line)
167	{	227	{
		228	{
		229	char *end = line + strlen (line);
		230
		231	while (*end < ' ' && end >= line)
		232	end--;
		233
		234	*++end = 0;
		235	}
		236
		237	char *tok = line;
		238	const char *var = strtok (tok, "\t =");
		239	tok = 0;
		240
		241	if (!var \|\| !var[0])
		242	return 0; /* no tokens on this line */
		243
		244	if (var[0] == '#')
		245	return 0; /* comment: ignore */
		246
		247	char *val = strtok (NULL, "\t\n\r =");
		248
		249	if (!val \|\| val[0] == '#')
		250	return _("no value given for variable, ignored");
		251
		252	else if (!strcmp (var, "on"))
		253	{
		254	if (::thisnode
		255	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		256	\|\| !strcmp (val, ::thisnode)))
		257	return parse_line (strtok (NULL, "\n\r"));
		258	}
		259
		260	else if (!strcmp (var, "include"))
		261	{
		262	char *fname = conf.config_filename (val);
		263	parse_file (fname);
		264	free (fname);
		265	}
		266
		267	// truly global
		268	else if (!strcmp (var, "loglevel"))
		269	{
		270	loglevel l = string_to_loglevel (val);
		271
		272	if (l == L_NONE)
		273	return _("unknown loglevel, ignored");
		274	}
		275	else if (!strcmp (var, "ip-proto"))
		276	conf.ip_proto = atoi (val);
		277	else if (!strcmp (var, "icmp-type"))
		278	{
		279	#if ENABLE_ICMP
		280	conf.icmp_type = atoi (val);
		281	#endif
		282	}
		283	else if (!strcmp (var, "chuser"))
		284	{
		285	struct passwd *pw = getpwnam (val);
		286	if (!pw)
		287	return _("user specified for chuser not found");
		288
		289	conf.change_uid = pw->pw_uid;
		290	conf.change_gid = pw->pw_gid;
		291	}
		292	else if (!strcmp (var, "chuid"))
		293	conf.change_uid = atoi (val);
		294	else if (!strcmp (var, "chgid"))
		295	conf.change_gid = atoi (val);
		296	else if (!strcmp (var, "chroot"))
		297	free (conf.change_root), conf.change_root = strdup (val);
		298
		299	// per node
		300	else if (!strcmp (var, "node"))
		301	{
		302	parse_argv ();
		303
		304	conf.default_node.id++;
		305	node = new conf_node (conf.default_node);
		306	conf.nodes.push_back (node);
		307	node->nodename = strdup (val);
		308
		309	{
168	char *fname;	310	char *fname;
169	FILE *f;	311	FILE *f;
170		312
171	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
172		314
173	asprintf (&fname, "%s/gvpe.conf", confbase);
174	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
175		319
176	if (f)	320	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		321	{
		322	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		323	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		324	exit (EXIT_FAILURE);
		325	}
		326
		327	require (RSA_blinding_on (node->rsa_key, 0));
		328
		329	fclose (f);
		330	}
		331	else
		332	{
		333	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		334
		335	if (need_keys)
		336	exit (EXIT_FAILURE);
		337	}
		338
		339	free (fname);
		340	}
		341
		342	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		343	conf.thisnode = node;
177	{	344	}
		345	else if (!strcmp (var, "private-key"))
		346	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		347	else if (!strcmp (var, "ifpersist"))
		348	parse_bool (conf.ifpersist, "ifpersist", true, false);
		349	else if (!strcmp (var, "ifname"))
		350	free (conf.ifname), conf.ifname = strdup (val);
		351	else if (!strcmp (var, "rekey"))
		352	conf.rekey = atoi (val);
		353	else if (!strcmp (var, "keepalive"))
		354	conf.keepalive = atoi (val);
		355	else if (!strcmp (var, "mtu"))
		356	conf.mtu = atoi (val);
		357	else if (!strcmp (var, "nfmark"))
		358	conf.nfmark = atoi (val);
		359	else if (!strcmp (var, "seed-device"))
		360	free (conf.seed_dev), conf.seed_dev = strdup (val);
		361	else if (!strcmp (var, "seed-interval"))
		362	conf.reseed = atoi (val);
		363	else if (!strcmp (var, "if-up"))
		364	free (conf.script_if_up), conf.script_if_up = strdup (val);
		365	else if (!strcmp (var, "node-up"))
		366	free (conf.script_node_up), conf.script_node_up = strdup (val);
		367	else if (!strcmp (var, "node-change"))
		368	free (conf.script_node_change), conf.script_node_change = strdup (val);
		369	else if (!strcmp (var, "node-down"))
		370	free (conf.script_node_down), conf.script_node_down = strdup (val);
		371	else if (!strcmp (var, "pid-file"))
		372	free (conf.pidfilename), conf.pidfilename = strdup (val);
		373	else if (!strcmp (var, "dns-forw-host"))
		374	{
		375	#if ENABLE_DNS
		376	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-forw-port"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_forw_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-timeout-factor"))
		386	{
		387	#if ENABLE_DNS
		388	conf.dns_timeout_factor = atof (val);
		389	#endif
		390	}
		391	else if (!strcmp (var, "dns-send-interval"))
		392	{
		393	#if ENABLE_DNS
		394	conf.dns_send_interval = atoi (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "dns-overlap-factor"))
		398	{
		399	#if ENABLE_DNS
		400	conf.dns_overlap_factor = atof (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "dns-max-outstanding"))
		404	{
		405	#if ENABLE_DNS
		406	conf.dns_max_outstanding = atoi (val);
		407	#endif
		408	}
		409	else if (!strcmp (var, "dns-case-preserving"))
		410	{
		411	#if ENABLE_DNS
		412	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		413	#endif
		414	}
		415	else if (!strcmp (var, "http-proxy-host"))
		416	{
		417	#if ENABLE_HTTP_PROXY
		418	free (conf.proxy_host), conf.proxy_host = strdup (val);
		419	#endif
		420	}
		421	else if (!strcmp (var, "http-proxy-port"))
		422	{
		423	#if ENABLE_HTTP_PROXY
		424	conf.proxy_port = atoi (val);
		425	#endif
		426	}
		427	else if (!strcmp (var, "http-proxy-auth"))
		428	{
		429	#if ENABLE_HTTP_PROXY
		430	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		431	#endif
		432	}
		433
		434	/* node-specific, non-defaultable */
		435	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		436	free (node->hostname), node->hostname = strdup (val);
		437
		438	/* node-specific, defaultable */
		439	else if (!strcmp (var, "udp-port"))
		440	node->udp_port = atoi (val);
		441	else if (!strcmp (var, "tcp-port"))
		442	node->tcp_port = atoi (val);
		443	else if (!strcmp (var, "dns-hostname"))
		444	{
		445	#if ENABLE_DNS
		446	free (node->dns_hostname), node->dns_hostname = strdup (val);
		447	#endif
		448	}
		449	else if (!strcmp (var, "dns-port"))
		450	{
		451	#if ENABLE_DNS
		452	node->dns_port = atoi (val);
		453	#endif
		454	}
		455	else if (!strcmp (var, "dns-domain"))
		456	{
		457	#if ENABLE_DNS
		458	free (node->domain), node->domain = strdup (val);
		459	#endif
		460	}
		461	else if (!strcmp (var, "if-up-data"))
		462	free (node->if_up_data), node->if_up_data = strdup (val);
		463	else if (!strcmp (var, "router-priority"))
		464	node->routerprio = atoi (val);
		465	else if (!strcmp (var, "max-retry"))
		466	node->max_retry = atoi (val);
		467	else if (!strcmp (var, "connect"))
		468	{
		469	if (!strcmp (val, "ondemand"))
		470	node->connectmode = conf_node::C_ONDEMAND;
		471	else if (!strcmp (val, "never"))
		472	node->connectmode = conf_node::C_NEVER;
		473	else if (!strcmp (val, "always"))
		474	node->connectmode = conf_node::C_ALWAYS;
		475	else if (!strcmp (val, "disabled"))
		476	node->connectmode = conf_node::C_DISABLED;
		477	else
		478	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		479	}
		480	else if (!strcmp (var, "inherit-tos"))
		481	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		482	else if (!strcmp (var, "compress"))
		483	parse_bool (node->compress, "compress", true, false);
		484	// all these bool options really really cost a lot of executable size!
		485	else if (!strcmp (var, "enable-tcp"))
		486	{
		487	#if ENABLE_TCP
		488	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		489	#endif
		490	}
		491	else if (!strcmp (var, "enable-icmp"))
		492	{
		493	#if ENABLE_ICMP
		494	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		495	#endif
		496	}
		497	else if (!strcmp (var, "enable-dns"))
		498	{
		499	#if ENABLE_DNS
		500	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		501	#endif
		502	}
		503	else if (!strcmp (var, "enable-udp"))
		504	{
		505	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		506	}
		507	else if (!strcmp (var, "enable-rawip"))
		508	{
		509	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		510	}
		511	else if (!strcmp (var, "allow-direct"))
		512	node->allow_direct.push_back (strdup (val));
		513	else if (!strcmp (var, "deny-direct"))
		514	node->deny_direct.push_back (strdup (val));
		515	else if (!strcmp (var, "max-ttl"))
		516	node->max_ttl = atof (val);
		517	else if (!strcmp (var, "max-queue"))
		518	node->max_queue = atoi (val);
		519
		520	// unknown or misplaced
		521	else
		522	return _("unknown configuration directive - ignored");
		523
		524	return 0;
		525	}
		526
		527	void
		528	conf_node::finalise ()
		529	{
		530	if (max_queue < 1)
		531	{
		532	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		533	max_queue = 1;
		534	}
		535
		536	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		537	{
		538	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		539	connectmode = C_ALWAYS;
		540	}
		541	}
		542
		543	void
		544	configuration_parser::parse_argv ()
		545	{
		546	for (int i = 0; i < argc; ++i)
		547	{
		548	char *v = argv [i];
		549
		550	if (!*v)
		551	continue;
		552
		553	char *enode = v;
		554
		555	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		556	enode++;
		557
		558	if (*enode != '.')
		559	enode = 0;
		560
		561	char *wnode = node == &conf.default_node
		562	? 0
		563	: node->nodename;
		564
		565	if ((!wnode && !enode)
		566	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		567	{
		568	const char *warn = parse_line (enode ? enode + 1 : v);
		569
		570	if (warn)
		571	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		572
		573	*v = 0;
		574	}
		575	}
		576	}
		577
		578	void
		579	configuration_parser::parse_file (const char *fname)
		580	{
		581	if (FILE *f = fopen (fname, "r"))
		582	{
178	char line[16384];	583	char line [2048];
179	int lineno = 0;	584	int lineno = 0;
180	char var, val;
181	conf_node *node = &default_node;
182		585
183	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
184	{	587	{
185	lineno++;	588	lineno++;
186		589
187	{	590	const char *warn = parse_line (line);
188	char *end = line + strlen (line);
189		591
190	while (*end < ' ' && end >= line)	592	if (warn)
191	end--;	593	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
192
193	*++end = 0;
194	}
195
196	char *tok = line;
197
198	retry:
199	var = strtok (tok, "\t =");
200	tok = 0;
201
202	if (!var \|\| !var[0])
203	continue; /* no tokens on this line */
204
205	if (var[0] == '#')
206	continue; /* comment: ignore */
207
208	val = strtok (NULL, "\t\n\r =");
209
210	if (!val \|\| val[0] == '#')
211	{
212	slog (L_WARN,
213	_("no value for variable `%s', at '%s' line %d"),
214	var, fname, lineno);
215	break;
216	}
217
218	if (!strcmp (var, "on"))
219	{
220	if (!::thisnode
221	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
222	\|\| !strcmp (val, ::thisnode))
223	goto retry;
224
225	continue;
226	}
227
228	// truly global
229	if (!strcmp (var, "loglevel"))
230	{
231	loglevel l = string_to_loglevel (val);
232
233	if (l != L_NONE)
234	llevel = l;
235	else
236	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
237	}
238	else if (!strcmp (var, "ip-proto"))
239	ip_proto = atoi (val);
240	else if (!strcmp (var, "icmp-type"))
241	{
242	#if ENABLE_ICMP
243	icmp_type = atoi (val);
244	#endif
245	}
246
247	// per config
248	else if (!strcmp (var, "node"))
249	{
250	default_node.id++;
251
252	node = new conf_node (default_node);
253
254	nodes.push_back (node);
255
256	node->nodename = strdup (val);
257
258	{
259	char *fname;
260	FILE *f;
261
262	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
263
264	f = fopen (fname, "r");
265	if (f)
266	{
267	node->rsa_key = RSA_new ();
268
269	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
270	{
271	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
272	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
273	exit (EXIT_FAILURE);
274	}
275
276	require (RSA_blinding_on (node->rsa_key, 0));
277
278	fclose (f);
279	}
280	else
281	{
282	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
283
284	if (need_keys)
285	exit (EXIT_FAILURE);
286	}
287
288	free (fname);
289	}
290
291	if (::thisnode && !strcmp (node->nodename, ::thisnode))
292	thisnode = node;
293	}
294	else if (!strcmp (var, "private-key"))
295	free (prikeyfile), prikeyfile = strdup (val);
296	else if (!strcmp (var, "ifpersist"))
297	{
298	parse_bool (ifpersist, "ifpersist", true, false);
299	}
300	else if (!strcmp (var, "ifname"))
301	free (ifname), ifname = strdup (val);
302	else if (!strcmp (var, "rekey"))
303	rekey = atoi (val);
304	else if (!strcmp (var, "keepalive"))
305	keepalive = atoi (val);
306	else if (!strcmp (var, "mtu"))
307	mtu = atoi (val);
308	else if (!strcmp (var, "if-up"))
309	free (script_if_up), script_if_up = strdup (val);
310	else if (!strcmp (var, "node-up"))
311	free (script_node_up), script_node_up = strdup (val);
312	else if (!strcmp (var, "node-down"))
313	free (script_node_down), script_node_down = strdup (val);
314	else if (!strcmp (var, "pid-file"))
315	free (pidfilename), pidfilename = strdup (val);
316	else if (!strcmp (var, "dns-forw-host"))
317	{
318	#if ENABLE_DNS
319	free (dns_forw_host), dns_forw_host = strdup (val);
320	#endif
321	}
322	else if (!strcmp (var, "dns-forw-port"))
323	{
324	#if ENABLE_DNS
325	dns_forw_port = atoi (val);
326	#endif
327	}
328	else if (!strcmp (var, "http-proxy-host"))
329	{
330	#if ENABLE_HTTP_PROXY
331	free (proxy_host), proxy_host = strdup (val);
332	#endif
333	}
334	else if (!strcmp (var, "http-proxy-port"))
335	{
336	#if ENABLE_HTTP_PROXY
337	proxy_port = atoi (val);
338	#endif
339	}
340	else if (!strcmp (var, "http-proxy-auth"))
341	{
342	#if ENABLE_HTTP_PROXY
343	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
344	#endif
345	}
346
347	/* node-specific, non-defaultable */
348	else if (node != &default_node && !strcmp (var, "hostname"))
349	free (node->hostname), node->hostname = strdup (val);
350
351	/* node-specific, defaultable */
352	else if (!strcmp (var, "udp-port"))
353	node->udp_port = atoi (val);
354	else if (!strcmp (var, "tcp-port"))
355	node->tcp_port = atoi (val);
356	else if (!strcmp (var, "dns-port"))
357	{
358	#if ENABLE_DNS
359	node->dns_port = atoi (val);
360	#endif
361	}
362	else if (!strcmp (var, "dns-domain"))
363	{
364	#if ENABLE_DNS
365	free (node->domain), node->domain = strdup (val);
366	#endif
367	}
368	else if (!strcmp (var, "router-priority"))
369	node->routerprio = atoi (val);
370	else if (!strcmp (var, "max-retry"))
371	node->max_retry = atoi (val);
372	else if (!strcmp (var, "connect"))
373	{
374	if (!strcmp (val, "ondemand"))
375	node->connectmode = conf_node::C_ONDEMAND;
376	else if (!strcmp (val, "never"))
377	node->connectmode = conf_node::C_NEVER;
378	else if (!strcmp (val, "always"))
379	node->connectmode = conf_node::C_ALWAYS;
380	else if (!strcmp (val, "disabled"))
381	node->connectmode = conf_node::C_DISABLED;
382	else
383	slog (L_WARN,
384	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
385	var, fname, lineno);
386	}
387	else if (!strcmp (var, "inherit-tos"))
388	{
389	parse_bool (node->inherit_tos, "inherit-tos", true, false);
390	}
391	else if (!strcmp (var, "compress"))
392	{
393	parse_bool (node->compress, "compress", true, false);
394	}
395	// all these bool options really really cost a lot of executable size!
396	else if (!strcmp (var, "enable-tcp"))
397	{
398	#if ENABLE_TCP
399	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
400	#endif
401	}
402	else if (!strcmp (var, "enable-icmp"))
403	{
404	#if ENABLE_ICMP
405	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
406	#endif
407	}
408	else if (!strcmp (var, "enable-dns"))
409	{
410	#if ENABLE_DNS
411	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
412	#endif
413	}
414	else if (!strcmp (var, "enable-udp"))
415	{
416	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
417	}
418	else if (!strcmp (var, "enable-rawip"))
419	{
420	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
421	}
422
423	// unknown or misplaced
424	else
425	slog (L_WARN,
426	_("unknown or misplaced variable `%s', at '%s' line %d"),
427	var, fname, lineno);
428	}	594	}
429		595
430	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
431	}	599	}
432	else	600	else
433	{	601	{
434	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	602	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
435	exit (EXIT_FAILURE);	603	exit (EXIT_FAILURE);
436	}	604	}
		605	}
437		606
		607	configuration_parser::configuration_parser (configuration &conf,
		608	bool need_keys,
		609	int argc,
		610	char **argv)
		611	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		612	{
		613	char *fname;
		614
		615	conf.clear ();
		616	node = &conf.default_node;
		617
		618	asprintf (&fname, "%s/gvpe.conf", confbase);
		619	parse_file (fname);
438	free (fname);	620	free (fname);
439		621
440	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
441		623
442	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
443	if (f)
444	{	625	{
445	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
446		627
447	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
448	{	629	{
449	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
450	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	631	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
451	exit (EXIT_FAILURE);	632	exit (EXIT_FAILURE);
452	}	633	}
453		634
454	require (RSA_blinding_on (rsa_key, 0));	635	require (RSA_blinding_on (conf.rsa_key, 0));
455		636
456	fclose (f);	637	fclose (f);
457	}	638	}
458	else	639	else
459	{	640	{
…		…
461		642
462	if (need_keys)	643	if (need_keys)
463	exit (EXIT_FAILURE);	644	exit (EXIT_FAILURE);
464	}	645	}
465		646
		647	free (fname);
		648
466	if (need_keys && ::thisnode	649	if (need_keys && ::thisnode
467	&& rsa_key && thisnode && thisnode->rsa_key)	650	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
468	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	651	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
469	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	652	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
470	{	653	{
471	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	654	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
472	exit (EXIT_FAILURE);	655	exit (EXIT_FAILURE);
473	}	656	}
474		657
475	free (fname);	658	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		659	(*i)->finalise ();
476	}	660	}
477		661
		662	char *
478	char configuration::config_filename (const char name, const char *dflt)	663	configuration::config_filename (const char name, const char dflt)
479	{	664	{
480	char *fname;	665	char *fname;
481		666
482	asprintf (&fname, name ? name : dflt, ::thisnode);	667	asprintf (&fname, name ? name : dflt, ::thisnode);
483		668
…		…
487	asprintf (&fname, "%s/%s", confbase, rname);	672	asprintf (&fname, "%s/%s", confbase, rname);
488	free (rname);	673	free (rname);
489	}	674	}
490		675
491	return fname;	676	return fname;
		677	}
		678
		679	void
		680	conf_node::print ()
		681	{
		682	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		683	id,
		684	id >> 8, id & 0xff,
		685	compress ? 'Y' : 'N',
		686	connectmode == C_ONDEMAND ? "ondemand"
		687	: connectmode == C_NEVER ? "never"
		688	: connectmode == C_ALWAYS ? "always"
		689	: connectmode == C_DISABLED ? "disabled"
		690	: "",
		691	nodename,
		692	protocols,
		693	hostname ? hostname : "",
		694	hostname ? ":" : "",
		695	hostname ? udp_port : 0
		696	);
492	}	697	}
493		698
494	void	699	void
495	configuration::print ()	700	configuration::print ()
496	{	701	{
…		…
503	printf (_("interface: %s\n"), ifname);	708	printf (_("interface: %s\n"), ifname);
504	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	709	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
505	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	710	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
506	printf ("\n");	711	printf ("\n");
507		712
508	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	713	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
509	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	714	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
510		715
511	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	716	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
512	(*i)->print ();	717	(*i)->print ();
513		718
514	printf ("\n");	719	printf ("\n");
…		…
524	configuration::~configuration ()	729	configuration::~configuration ()
525	{	730	{
526	cleanup ();	731	cleanup ();
527	}	732	}
528		733
529

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Comparing gvpe/src/conf.C (file contents): Revision 1.29 by pcg, Tue Mar 1 06:27:20 2005 UTC vs. Revision 1.60 by root, Sat Jul 13 04:10:29 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.29 by pcg, Tue Mar 1 06:27:20 2005 UTC vs.
Revision 1.60 by root, Sat Jul 13 04:10:29 2013 UTC