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

Comparing gvpe/src/conf.C (file contents):
Revision 1.32 by pcg, Sat Mar 5 15:48:54 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) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
5	This file is part of GVPE.	5	This file is part of GVPE.
6		6
7	GVPE is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
8	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
9	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
10	(at your option) any later version.	10	option) any later version.
11		11
12	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
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15	GNU General Public License for more details.	15	Public License for more details.
16		16
17	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
18	along with gvpe; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
19	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.
20	*/	30	*/
21		31
22	#include "config.h"	32	#include "config.h"
23		33
24	#include <cstdio>	34	#include <cstdio>
28	#include <errno.h>	38	#include <errno.h>
29	#include <netdb.h>	39	#include <netdb.h>
30	#include <sys/stat.h>	40	#include <sys/stat.h>
31	#include <sys/types.h>	41	#include <sys/types.h>
32	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
33		44
34	#include "netcompat.h"	45	#include "netcompat.h"
35		46
36	#include <openssl/err.h>	47	#include <openssl/err.h>
37	#include <openssl/pem.h>	48	#include <openssl/pem.h>
38	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
39	#include <openssl/rand.h>	50	#include <openssl/rand.h>
40	#include <openssl/bn.h>	51	#include <openssl/bn.h>
41		52
42	#include "gettext.h"
43
44	#include "conf.h"	53	#include "conf.h"
45	#include "slog.h"	54	#include "slog.h"
46	#include "util.h"	55	#include "util.h"
47		56
48	char *confbase;	57	char *confbase;
49	char *thisnode;	58	char *thisnode;
50	char *identname;	59	char *identname;
51		60
52	struct configuration conf;	61	struct configuration conf;
53		62
		63	u8
54	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
55	{	65	{
56	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
57	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
58	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
59	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
60	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		71
62	return 0;	72	return 0;
63	}	73	}
64		74
		75	const char *
65	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
66	{	77	{
67	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
68	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
69	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
70	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
71	if (protocol & PROT_DNSv4 ) return "dns";	82	if (protocol & PROT_DNSv4 ) return "dns";
72		83
73	return "<unknown>";	84	return "<unknown>";
74	}	85	}
75		86
76	void	87	static bool
77	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
78	{	89	{
79	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 (); )
80	id,	91	if ((i)[0] == '' && !(*i)[1])
81	id >> 8, id & 0xff,	92	return true;
82	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
83	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
84	connectmode == C_NEVER ? "never" :	95
85	connectmode == C_ALWAYS ? "always" : "",	96	return false;
86	nodename,	97	}
87	hostname ? hostname : "",	98
88	hostname ? ":" : "",	99	bool
89	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
90	);	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;
91	}	109	}
92		110
93	conf_node::~conf_node ()	111	conf_node::~conf_node ()
94	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
95	if (rsa_key)	116	if (rsa_key)
96	RSA_free (rsa_key);	117	RSA_free (rsa_key);
97		118
98	free (nodename);	119	free (nodename);
99	free (hostname);	120	free (hostname);
		121	free (if_up_data);
100	#if ENABLE_DNS	122	#if ENABLE_DNS
101	free (domain);	123	free (domain);
102	free (dns_hostname);	124	free (dns_hostname);
103	#endif	125	#endif
		126	#endif
104	}	127	}
105		128
		129	void
106	void configuration::init ()	130	configuration::init ()
107	{	131	{
108	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
109		133
110	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
111	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
112	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
113	llevel = L_INFO;	138	llevel = L_INFO;
114	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
115	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
120	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
121	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
122	default_node.compress = true;	147	default_node.compress = true;
123	default_node.protocols = 0;	148	default_node.protocols = 0;
124	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 ("");
125		153
126	#if ENABLE_DNS	154	#if ENABLE_DNS
127	default_node.dns_port = 0; // default is 0 == client	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");
128	dns_forw_port = 53;	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;
129	#endif	164	#endif
130		165
131	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
132	}	169	}
133		170
		171	void
134	void configuration::cleanup()	172	configuration::cleanup ()
135	{	173	{
136	if (rsa_key)	174	if (rsa_key)
137	RSA_free (rsa_key);	175	RSA_free (rsa_key);
138		176
139	rsa_key = 0;	177	rsa_key = 0;
140		178
		179	free (seed_dev); seed_dev = 0;
141	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
142	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
143	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
144	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
145	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
146	#endif	185	#endif
147	#if ENABLE_DNS	186	#if ENABLE_DNS
148	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
149	#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;
150	}	194	}
151		195
152	void	196	void
153	configuration::clear_config ()	197	configuration::clear ()
154	{	198	{
155	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)
156	delete *i;	200	delete *i;
157		201
158	nodes.clear ();	202	nodes.clear ();
159		203
160	cleanup ();	204	cleanup ();
161	init ();	205	init ();
162	}	206	}
163		207
		208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
164	#define parse_bool(target,name,trueval,falseval) \	214	#define parse_bool(target,name,trueval,falseval) do { \
165	if (!strcmp (val, "yes")) target = trueval; \	215	if (!strcmp (val, "yes")) target = trueval; \
166	else if (!strcmp (val, "no")) target = falseval; \	216	else if (!strcmp (val, "no")) target = falseval; \
167	else if (!strcmp (val, "true")) target = trueval; \	217	else if (!strcmp (val, "true")) target = trueval; \
168	else if (!strcmp (val, "false")) target = falseval; \	218	else if (!strcmp (val, "false")) target = falseval; \
169	else if (!strcmp (val, "on")) target = trueval; \	219	else if (!strcmp (val, "on")) target = trueval; \
170	else if (!strcmp (val, "off")) target = falseval; \	220	else if (!strcmp (val, "off")) target = falseval; \
171	else \	221	else \
172	slog (L_WARN, \
173	_("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"); \
174	name, var, fname, lineno);	223	} while (0)
175		224
176	void configuration::read_config (bool need_keys)	225	const char *
		226	configuration_parser::parse_line (char *line)
177	{	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	{
178	char *fname;	310	char *fname;
179	FILE *f;	311	FILE *f;
180		312
181	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
182		314
183	asprintf (&fname, "%s/gvpe.conf", confbase);
184	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
185		319
186	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;
187	{	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	{
188	char line[16384];	583	char line [2048];
189	int lineno = 0;	584	int lineno = 0;
190	char var, val;
191	conf_node *node = &default_node;
192		585
193	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
194	{	587	{
195	lineno++;	588	lineno++;
196		589
197	{	590	const char *warn = parse_line (line);
198	char *end = line + strlen (line);
199		591
200	while (*end < ' ' && end >= line)	592	if (warn)
201	end--;	593	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
202
203	*++end = 0;
204	}
205
206	char *tok = line;
207
208	retry:
209	var = strtok (tok, "\t =");
210	tok = 0;
211
212	if (!var \|\| !var[0])
213	continue; /* no tokens on this line */
214
215	if (var[0] == '#')
216	continue; /* comment: ignore */
217
218	val = strtok (NULL, "\t\n\r =");
219
220	if (!val \|\| val[0] == '#')
221	{
222	slog (L_WARN,
223	_("no value for variable `%s', at '%s' line %d"),
224	var, fname, lineno);
225	break;
226	}
227
228	if (!strcmp (var, "on"))
229	{
230	if (!::thisnode
231	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
232	\|\| !strcmp (val, ::thisnode))
233	goto retry;
234
235	continue;
236	}
237
238	// truly global
239	if (!strcmp (var, "loglevel"))
240	{
241	loglevel l = string_to_loglevel (val);
242
243	if (l != L_NONE)
244	llevel = l;
245	else
246	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
247	}
248	else if (!strcmp (var, "ip-proto"))
249	ip_proto = atoi (val);
250	else if (!strcmp (var, "icmp-type"))
251	{
252	#if ENABLE_ICMP
253	icmp_type = atoi (val);
254	#endif
255	}
256
257	// per config
258	else if (!strcmp (var, "node"))
259	{
260	default_node.id++;
261
262	node = new conf_node (default_node);
263
264	nodes.push_back (node);
265
266	node->nodename = strdup (val);
267
268	{
269	char *fname;
270	FILE *f;
271
272	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
273
274	f = fopen (fname, "r");
275	if (f)
276	{
277	node->rsa_key = RSA_new ();
278
279	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
280	{
281	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
282	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
283	exit (EXIT_FAILURE);
284	}
285
286	require (RSA_blinding_on (node->rsa_key, 0));
287
288	fclose (f);
289	}
290	else
291	{
292	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
293
294	if (need_keys)
295	exit (EXIT_FAILURE);
296	}
297
298	free (fname);
299	}
300
301	if (::thisnode && !strcmp (node->nodename, ::thisnode))
302	thisnode = node;
303	}
304	else if (!strcmp (var, "private-key"))
305	free (prikeyfile), prikeyfile = strdup (val);
306	else if (!strcmp (var, "ifpersist"))
307	{
308	parse_bool (ifpersist, "ifpersist", true, false);
309	}
310	else if (!strcmp (var, "ifname"))
311	free (ifname), ifname = strdup (val);
312	else if (!strcmp (var, "rekey"))
313	rekey = atoi (val);
314	else if (!strcmp (var, "keepalive"))
315	keepalive = atoi (val);
316	else if (!strcmp (var, "mtu"))
317	mtu = atoi (val);
318	else if (!strcmp (var, "if-up"))
319	free (script_if_up), script_if_up = strdup (val);
320	else if (!strcmp (var, "node-up"))
321	free (script_node_up), script_node_up = strdup (val);
322	else if (!strcmp (var, "node-down"))
323	free (script_node_down), script_node_down = strdup (val);
324	else if (!strcmp (var, "pid-file"))
325	free (pidfilename), pidfilename = strdup (val);
326	#if ENABLE_DNS
327	else if (!strcmp (var, "dns-forw-host"))
328	free (dns_forw_host), dns_forw_host = strdup (val);
329	else if (!strcmp (var, "dns-forw-port"))
330	dns_forw_port = atoi (val);
331	#endif
332	else if (!strcmp (var, "http-proxy-host"))
333	{
334	#if ENABLE_HTTP_PROXY
335	free (proxy_host), proxy_host = strdup (val);
336	#endif
337	}
338	else if (!strcmp (var, "http-proxy-port"))
339	{
340	#if ENABLE_HTTP_PROXY
341	proxy_port = atoi (val);
342	#endif
343	}
344	else if (!strcmp (var, "http-proxy-auth"))
345	{
346	#if ENABLE_HTTP_PROXY
347	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
348	#endif
349	}
350
351	/* node-specific, non-defaultable */
352	else if (node != &default_node && !strcmp (var, "hostname"))
353	free (node->hostname), node->hostname = strdup (val);
354
355	/* node-specific, defaultable */
356	else if (!strcmp (var, "udp-port"))
357	node->udp_port = atoi (val);
358	else if (!strcmp (var, "tcp-port"))
359	node->tcp_port = atoi (val);
360	#if ENABLE_DNS
361	else if (!strcmp (var, "dns-hostname"))
362	free (node->dns_hostname), node->dns_hostname = strdup (val);
363	else if (!strcmp (var, "dns-port"))
364	node->dns_port = atoi (val);
365	#endif
366	else if (!strcmp (var, "dns-domain"))
367	{
368	#if ENABLE_DNS
369	free (node->domain), node->domain = strdup (val);
370	#endif
371	}
372	else if (!strcmp (var, "router-priority"))
373	node->routerprio = atoi (val);
374	else if (!strcmp (var, "max-retry"))
375	node->max_retry = atoi (val);
376	else if (!strcmp (var, "connect"))
377	{
378	if (!strcmp (val, "ondemand"))
379	node->connectmode = conf_node::C_ONDEMAND;
380	else if (!strcmp (val, "never"))
381	node->connectmode = conf_node::C_NEVER;
382	else if (!strcmp (val, "always"))
383	node->connectmode = conf_node::C_ALWAYS;
384	else if (!strcmp (val, "disabled"))
385	node->connectmode = conf_node::C_DISABLED;
386	else
387	slog (L_WARN,
388	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
389	var, fname, lineno);
390	}
391	else if (!strcmp (var, "inherit-tos"))
392	{
393	parse_bool (node->inherit_tos, "inherit-tos", true, false);
394	}
395	else if (!strcmp (var, "compress"))
396	{
397	parse_bool (node->compress, "compress", true, false);
398	}
399	// all these bool options really really cost a lot of executable size!
400	else if (!strcmp (var, "enable-tcp"))
401	{
402	#if ENABLE_TCP
403	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
404	#endif
405	}
406	else if (!strcmp (var, "enable-icmp"))
407	{
408	#if ENABLE_ICMP
409	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
410	#endif
411	}
412	else if (!strcmp (var, "enable-dns"))
413	{
414	#if ENABLE_DNS
415	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
416	#endif
417	}
418	else if (!strcmp (var, "enable-udp"))
419	{
420	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
421	}
422	else if (!strcmp (var, "enable-rawip"))
423	{
424	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
425	}
426
427	// unknown or misplaced
428	else
429	slog (L_WARN,
430	_("unknown or misplaced variable `%s', at '%s' line %d"),
431	var, fname, lineno);
432	}	594	}
433		595
434	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
435	}	599	}
436	else	600	else
437	{	601	{
438	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));
439	exit (EXIT_FAILURE);	603	exit (EXIT_FAILURE);
440	}	604	}
		605	}
441		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);
442	free (fname);	620	free (fname);
443		621
444	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
445		623
446	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
447	if (f)
448	{	625	{
449	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
450		627
451	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
452	{	629	{
453	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
454	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));
455	exit (EXIT_FAILURE);	632	exit (EXIT_FAILURE);
456	}	633	}
457		634
458	require (RSA_blinding_on (rsa_key, 0));	635	require (RSA_blinding_on (conf.rsa_key, 0));
459		636
460	fclose (f);	637	fclose (f);
461	}	638	}
462	else	639	else
463	{	640	{
…		…
465		642
466	if (need_keys)	643	if (need_keys)
467	exit (EXIT_FAILURE);	644	exit (EXIT_FAILURE);
468	}	645	}
469		646
		647	free (fname);
		648
470	if (need_keys && ::thisnode	649	if (need_keys && ::thisnode
471	&& rsa_key && thisnode && thisnode->rsa_key)	650	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
472	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
473	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	652	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
474	{	653	{
475	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);
476	exit (EXIT_FAILURE);	655	exit (EXIT_FAILURE);
477	}	656	}
478		657
479	free (fname);	658	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		659	(*i)->finalise ();
480	}	660	}
481		661
		662	char *
482	char configuration::config_filename (const char name, const char *dflt)	663	configuration::config_filename (const char name, const char dflt)
483	{	664	{
484	char *fname;	665	char *fname;
485		666
486	asprintf (&fname, name ? name : dflt, ::thisnode);	667	asprintf (&fname, name ? name : dflt, ::thisnode);
487		668
…		…
491	asprintf (&fname, "%s/%s", confbase, rname);	672	asprintf (&fname, "%s/%s", confbase, rname);
492	free (rname);	673	free (rname);
493	}	674	}
494		675
495	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	);
496	}	697	}
497		698
498	void	699	void
499	configuration::print ()	700	configuration::print ()
500	{	701	{
…		…
507	printf (_("interface: %s\n"), ifname);	708	printf (_("interface: %s\n"), ifname);
508	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	709	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
509	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);
510	printf ("\n");	711	printf ("\n");
511		712
512	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	713	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
513	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	714	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
514		715
515	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	716	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
516	(*i)->print ();	717	(*i)->print ();
517		718
518	printf ("\n");	719	printf ("\n");
…		…
528	configuration::~configuration ()	729	configuration::~configuration ()
529	{	730	{
530	cleanup ();	731	cleanup ();
531	}	732	}
532		733
533

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Comparing gvpe/src/conf.C (file contents): Revision 1.32 by pcg, Sat Mar 5 15:48:54 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 1.32 by pcg, Sat Mar 5 15:48:54 2005 UTC vs.
Revision 1.60 by root, Sat Jul 13 04:10:29 2013 UTC