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

Comparing gvpe/src/conf.C (file contents):
Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs.
Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	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
10	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
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	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
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	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
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	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.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
35		44
36	#include <netinet/in.h>	45	#include "netcompat.h"
37	#include <netinet/icmp.h>
38		46
39	#include <openssl/err.h>	47	#include <openssl/err.h>
40	#include <openssl/pem.h>	48	#include <openssl/pem.h>
41	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
42	#include <openssl/rand.h>	50	#include <openssl/rand.h>
43		51	#include <openssl/bn.h>
44	#include "gettext.h"
45		52
46	#include "conf.h"	53	#include "conf.h"
47	#include "slog.h"	54	#include "slog.h"
48	#include "util.h"	55	#include "util.h"
49		56
50	char *confbase;	57	char *confbase;
51	char *thisnode;	58	char *thisnode;
52	char *identname;	59	char *identname;
53	char *pidfilename;
54		60
55	struct configuration conf;	61	struct configuration conf;
56		62
		63	u8
57	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
58	{	65	{
59	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
60	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
61	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
62	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
63		71
64	return 0;	72	return 0;
65	}	73	}
66		74
		75	const char *
67	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
68	{	77	{
69	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
70	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
71	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
72	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
73		83
74	return "<unknown>";	84	return "<unknown>";
75	}	85	}
76		86
77	void	87	static bool
78	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
79	{	89	{
80	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 (); )
81	id,	91	if ((i)[0] == '' && !(*i)[1])
82	id >> 8, id & 0xff,	92	return true;
83	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
84	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
85	connectmode == C_NEVER ? "never" :	95
86	connectmode == C_ALWAYS ? "always" : "",	96	return false;
87	nodename,	97	}
88	hostname ? hostname : "",	98
89	hostname ? ":" : "",	99	bool
90	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
91	);	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;
92	}	109	}
93		110
94	conf_node::~conf_node ()	111	conf_node::~conf_node ()
95	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
96	if (rsa_key)	116	if (rsa_key)
97	RSA_free (rsa_key);	117	RSA_free (rsa_key);
98		118
99	free (nodename);	119	free (nodename);
100	free (hostname);	120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
101	}	127	}
102		128
		129	void
103	void configuration::init ()	130	configuration::init ()
104	{	131	{
105	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
106		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
107	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
108	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
109	llevel = L_INFO;	138	llevel = L_INFO;
110	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
111	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
112		143
113	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	147	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
118	}	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 ("");
119		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
		166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
		169	}
		170
		171	void
120	void configuration::cleanup()	172	configuration::cleanup ()
121	{	173	{
122	if (rsa_key)	174	if (rsa_key)
123	RSA_free (rsa_key);	175	RSA_free (rsa_key);
124		176
125	rsa_key = 0;	177	rsa_key = 0;
126		178
		179	free (seed_dev); seed_dev = 0;
127	free (ifname); ifname = 0;	180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
128	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
129	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
130	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
131	#endif	185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		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;
132	}	194	}
133		195
134	void	196	void
135	configuration::clear_config ()	197	configuration::clear ()
136	{	198	{
137	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)
138	delete *i;	200	delete *i;
139		201
140	nodes.clear ();	202	nodes.clear ();
141		203
142	cleanup ();	204	cleanup ();
143	init ();	205	init ();
144	}	206	}
145		207
		208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
146	#define parse_bool(target,name,trueval,falseval) \	214	#define parse_bool(target,name,trueval,falseval) do { \
147	if (!strcmp (val, "yes")) target = trueval; \	215	if (!strcmp (val, "yes")) target = trueval; \
148	else if (!strcmp (val, "no")) target = falseval; \	216	else if (!strcmp (val, "no")) target = falseval; \
149	else if (!strcmp (val, "true")) target = trueval; \	217	else if (!strcmp (val, "true")) target = trueval; \
150	else if (!strcmp (val, "false")) target = falseval; \	218	else if (!strcmp (val, "false")) target = falseval; \
151	else if (!strcmp (val, "on")) target = trueval; \	219	else if (!strcmp (val, "on")) target = trueval; \
152	else if (!strcmp (val, "off")) target = falseval; \	220	else if (!strcmp (val, "off")) target = falseval; \
153	else \	221	else \
154	slog (L_WARN, \
155	_("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"); \
156	name, var, fname, lineno);	223	} while (0)
157		224
158	void configuration::read_config (bool need_keys)	225	const char *
		226	configuration_parser::parse_line (char *line)
159	{	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	{
160	char *fname;	310	char *fname;
161	FILE *f;	311	FILE *f;
162		312
163	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
164		314
165	asprintf (&fname, "%s/vped.conf", confbase);
166	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
167		319
168	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;
169	{	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	{
170	char line[16384];	583	char line [2048];
171	int lineno = 0;	584	int lineno = 0;
172	char var, val;
173	conf_node *node = &default_node;
174		585
175	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
176	{	587	{
177	lineno++;	588	lineno++;
178		589
179	{	590	const char *warn = parse_line (line);
180	char *end = line + strlen (line);
181		591
182	while (*end < ' ' && end >= line)	592	if (warn)
183	end--;	593	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
184
185	*++end = 0;
186	}
187
188	char *tok = line;
189
190	retry:
191	var = strtok (tok, "\t =");
192	tok = 0;
193
194	if (!var \|\| !var[0])
195	continue; /* no tokens on this line */
196
197	if (var[0] == '#')
198	continue; /* comment: ignore */
199
200	val = strtok (NULL, "\t\n\r =");
201
202	if (!val \|\| val[0] == '#')
203	{
204	slog (L_WARN,
205	_("no value for variable `%s', at '%s' line %d"),
206	var, fname, lineno);
207	break;
208	}
209
210	if (!strcmp (var, "on"))
211	{
212	if (!::thisnode
213	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
214	\|\| !strcmp (val, ::thisnode))
215	goto retry;
216
217	continue;
218	}
219
220	// truly global
221	if (!strcmp (var, "loglevel"))
222	{
223	loglevel l = string_to_loglevel (val);
224
225	if (l != L_NONE)
226	llevel = l;
227	else
228	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
229	}
230	else if (!strcmp (var, "ip-proto"))
231	ip_proto = atoi (val);
232	else if (!strcmp (var, "icmp-type"))
233	icmp_type = atoi (val);
234
235	// per config
236	else if (!strcmp (var, "node"))
237	{
238	default_node.id++;
239
240	node = new conf_node (default_node);
241
242	nodes.push_back (node);
243
244	node->nodename = strdup (val);
245
246	{
247	char *fname;
248	FILE *f;
249
250	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
251
252	f = fopen (fname, "r");
253	if (f)
254	{
255	node->rsa_key = RSA_new ();
256
257	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
258	{
259	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
260	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
261	exit (1);
262	}
263
264	RSA_blinding_on (node->rsa_key, 0);
265
266	fclose (f);
267	}
268	else
269	{
270	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
271
272	if (need_keys)
273	exit (1);
274	}
275
276	free (fname);
277	}
278
279	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
280	thisnode = node;
281	}
282	else if (!strcmp (var, "private-key"))
283	prikeyfile = strdup (val);
284	else if (!strcmp (var, "ifpersist"))
285	{
286	parse_bool (ifpersist, "ifpersist", true, false);
287	}
288	else if (!strcmp (var, "ifname"))
289	ifname = strdup (val);
290	else if (!strcmp (var, "rekey"))
291	rekey = atoi (val);
292	else if (!strcmp (var, "keepalive"))
293	keepalive = atoi (val);
294	else if (!strcmp (var, "mtu"))
295	mtu = atoi (val);
296	else if (!strcmp (var, "if-up"))
297	script_if_up = strdup (val);
298	else if (!strcmp (var, "node-up"))
299	script_node_up = strdup (val);
300	else if (!strcmp (var, "node-down"))
301	script_node_down = strdup (val);
302	#if ENABLE_HTTP_PROXY
303	else if (!strcmp (var, "http-proxy-host"))
304	proxy_host = strdup (val);
305	else if (!strcmp (var, "http-proxy-port"))
306	proxy_port = atoi (val);
307	else if (!strcmp (var, "http-proxy-auth"))
308	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
309	#endif
310
311	/* node-specific, non-defaultable */
312	else if (node != &default_node && !strcmp (var, "hostname"))
313	{
314	free (node->hostname);
315	node->hostname = strdup (val);
316	}
317
318	/* node-specific, defaultable */
319	else if (!strcmp (var, "udp-port"))
320	node->udp_port = atoi (val);
321	else if (!strcmp (var, "tcp-port"))
322	node->tcp_port = atoi (val);
323	else if (!strcmp (var, "router-priority"))
324	node->routerprio = atoi (val);
325	else if (!strcmp (var, "connect"))
326	{
327	if (!strcmp (val, "ondemand"))
328	node->connectmode = conf_node::C_ONDEMAND;
329	else if (!strcmp (val, "never"))
330	node->connectmode = conf_node::C_NEVER;
331	else if (!strcmp (val, "always"))
332	node->connectmode = conf_node::C_ALWAYS;
333	else if (!strcmp (val, "disabled"))
334	node->connectmode = conf_node::C_DISABLED;
335	else
336	slog (L_WARN,
337	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
338	var, fname, lineno);
339	}
340	else if (!strcmp (var, "inherit-tos"))
341	{
342	parse_bool (node->inherit_tos, "inherit-tos", true, false);
343	}
344	else if (!strcmp (var, "compress"))
345	{
346	parse_bool (node->compress, "compress", true, false);
347	}
348	// all these bool options really really cost a lot of executable size!
349	else if (!strcmp (var, "enable-tcp"))
350	{
351	#if ENABLE_TCP
352	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
353	#endif
354	}
355	else if (!strcmp (var, "enable-icmp"))
356	{
357	#if ENABLE_ICMP
358	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
359	#endif
360	}
361	else if (!strcmp (var, "enable-udp"))
362	{
363	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
364	}
365	else if (!strcmp (var, "enable-rawip"))
366	{
367	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
368	}
369
370	// unknown or misplaced
371	else
372	slog (L_WARN,
373	_("unknown or misplaced variable `%s', at '%s' line %d"),
374	var, fname, lineno);
375	}	594	}
376		595
377	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
378	}	599	}
379	else	600	else
380	{	601	{
381	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));
382	exit (1);	603	exit (EXIT_FAILURE);
383	}	604	}
		605	}
384		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);
385	free (fname);	620	free (fname);
386		621
387	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
388		623
389	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
390	if (f)
391	{	625	{
392	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
393		627
394	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
395	{	629	{
396	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
397	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	631	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
398	exit (1);	632	exit (EXIT_FAILURE);
399	}	633	}
400		634
401	RSA_blinding_on (rsa_key, 0);	635	require (RSA_blinding_on (conf.rsa_key, 0));
402		636
403	fclose (f);	637	fclose (f);
404	}	638	}
405	else	639	else
406	{	640	{
407	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
408
409	if (need_keys)	641	if (need_keys)
410	exit (1);	642	{
		643	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		644	exit (EXIT_FAILURE);
		645	}
411	}	646	}
412		647
413	free (fname);	648	free (fname);
414	}
415		649
		650	if (need_keys && ::thisnode
		651	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		652	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		653	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		654	{
		655	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		656	exit (EXIT_FAILURE);
		657	}
		658
		659	fname = conf.config_filename (conf.pidfilename);
		660	free (conf.pidfilename); conf.pidfilename = fname;
		661
		662	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		663	(*i)->finalise ();
		664	}
		665
		666	char *
416	char configuration::config_filename (const char name, const char *dflt)	667	configuration::config_filename (const char name, const char dflt)
417	{	668	{
418	char *fname;	669	char *fname;
419		670
420	asprintf (&fname, name ? name : dflt, ::thisnode);	671	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
421		672
422	if (!ABSOLUTE_PATH (fname))	673	if (!ABSOLUTE_PATH (fname))
423	{	674	{
424	char *rname = fname;	675	char *rname = fname;
425	asprintf (&fname, "%s/%s", confbase, rname);	676	asprintf (&fname, "%s/%s", confbase, rname);
426	free (rname);	677	free (rname);
427	}	678	}
428		679
429	return fname;	680	return fname;
		681	}
		682
		683	void
		684	conf_node::print ()
		685	{
		686	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		687	id,
		688	id >> 8, id & 0xff,
		689	compress ? 'Y' : 'N',
		690	connectmode == C_ONDEMAND ? "ondemand"
		691	: connectmode == C_NEVER ? "never"
		692	: connectmode == C_ALWAYS ? "always"
		693	: connectmode == C_DISABLED ? "disabled"
		694	: "",
		695	nodename,
		696	protocols,
		697	hostname ? hostname : "",
		698	hostname ? ":" : "",
		699	hostname ? udp_port : 0
		700	);
430	}	701	}
431		702
432	void	703	void
433	configuration::print ()	704	configuration::print ()
434	{	705	{
…		…
438	printf (_("MTU: %d\n"), mtu);	709	printf (_("MTU: %d\n"), mtu);
439	printf (_("rekeying interval: %d\n"), rekey);	710	printf (_("rekeying interval: %d\n"), rekey);
440	printf (_("keepalive interval: %d\n"), keepalive);	711	printf (_("keepalive interval: %d\n"), keepalive);
441	printf (_("interface: %s\n"), ifname);	712	printf (_("interface: %s\n"), ifname);
442	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	713	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
443	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	714	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
444	printf ("\n");	715	printf ("\n");
445		716
446	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	717	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
447	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	718	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
448		719
449	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	720	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
450	(*i)->print ();	721	(*i)->print ();
451		722
452	printf ("\n");	723	printf ("\n");
453	}	724	}
454		725
455	configuration::configuration ()	726	configuration::configuration ()
456	{	727	{
		728	asprintf (&confbase, "%s/gvpe", CONFDIR);
		729
457	init ();	730	init ();
458	}	731	}
459		732
460	configuration::~configuration ()	733	configuration::~configuration ()
461	{	734	{
462	cleanup ();	735	cleanup ();
463	}	736	}
464		737
465

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Comparing gvpe/src/conf.C (file contents): Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs. Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.13 by pcg, Tue Apr 8 02:00:54 2003 UTC vs.
Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC