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

Comparing gvpe/src/conf.C (file contents):
Revision 1.16 by pcg, Tue Oct 14 03:22:09 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 <arpa/inet.h>
38	#ifdef ENABLE_ICMP
39	# ifdef HAVE_NETINET_IN_SYSTM_H
40	# include <netinet/in_systm.h>
41	# endif
42	# ifdef HAVE_NETINET_IP_H
43	# include <netinet/ip.h>
44	# endif
45	# include <netinet/ip_icmp.h>
46	#endif
47		46
48	#include <openssl/err.h>	47	#include <openssl/err.h>
49	#include <openssl/pem.h>	48	#include <openssl/pem.h>
50	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
51	#include <openssl/rand.h>	50	#include <openssl/rand.h>
52		51	#include <openssl/bn.h>
53	#include "gettext.h"
54		52
55	#include "conf.h"	53	#include "conf.h"
56	#include "slog.h"	54	#include "slog.h"
57	#include "util.h"	55	#include "util.h"
58		56
59	char *confbase;	57	char *confbase;
60	char *thisnode;	58	char *thisnode;
61	char *identname;	59	char *identname;
62	char *pidfilename;
63		60
64	struct configuration conf;	61	struct configuration conf;
65		62
		63	u8
66	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
67	{	65	{
68	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
72		71
73	return 0;	72	return 0;
74	}	73	}
75		74
		75	const char *
76	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
77	{	77	{
78	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
79	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
80	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
81	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
82		83
83	return "<unknown>";	84	return "<unknown>";
84	}	85	}
85		86
86	void	87	static bool
87	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
88	{	89	{
89	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 (); )
90	id,	91	if ((i)[0] == '' && !(*i)[1])
91	id >> 8, id & 0xff,	92	return true;
92	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
93	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
94	connectmode == C_NEVER ? "never" :	95
95	connectmode == C_ALWAYS ? "always" : "",	96	return false;
96	nodename,	97	}
97	hostname ? hostname : "",	98
98	hostname ? ":" : "",	99	bool
99	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
100	);	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;
101	}	109	}
102		110
103	conf_node::~conf_node ()	111	conf_node::~conf_node ()
104	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
105	if (rsa_key)	116	if (rsa_key)
106	RSA_free (rsa_key);	117	RSA_free (rsa_key);
107		118
108	free (nodename);	119	free (nodename);
109	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
110	}	127	}
111		128
		129	void
112	void configuration::init ()	130	configuration::init ()
113	{	131	{
114	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
115		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
116	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
117	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
118	llevel = L_INFO;	138	llevel = L_INFO;
119	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
120	#if ENABLE_ICMP	140	#if ENABLE_ICMP
121	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
122	#endif	142	#endif
123		143
124	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
125	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
126	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
127	default_node.compress = true;	147	default_node.compress = true;
128	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
129	}	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 ("");
130		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
131	void configuration::cleanup()	172	configuration::cleanup ()
132	{	173	{
133	if (rsa_key)	174	if (rsa_key)
134	RSA_free (rsa_key);	175	RSA_free (rsa_key);
135		176
136	rsa_key = 0;	177	rsa_key = 0;
137		178
		179	free (seed_dev); seed_dev = 0;
138	free (ifname); ifname = 0;	180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
139	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
140	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
141	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
142	#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;
143	}	194	}
144		195
145	void	196	void
146	configuration::clear_config ()	197	configuration::clear ()
147	{	198	{
148	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)
149	delete *i;	200	delete *i;
150		201
151	nodes.clear ();	202	nodes.clear ();
152		203
153	cleanup ();	204	cleanup ();
154	init ();	205	init ();
155	}	206	}
156		207
		208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
157	#define parse_bool(target,name,trueval,falseval) \	214	#define parse_bool(target,name,trueval,falseval) do { \
158	if (!strcmp (val, "yes")) target = trueval; \	215	if (!strcmp (val, "yes")) target = trueval; \
159	else if (!strcmp (val, "no")) target = falseval; \	216	else if (!strcmp (val, "no")) target = falseval; \
160	else if (!strcmp (val, "true")) target = trueval; \	217	else if (!strcmp (val, "true")) target = trueval; \
161	else if (!strcmp (val, "false")) target = falseval; \	218	else if (!strcmp (val, "false")) target = falseval; \
162	else if (!strcmp (val, "on")) target = trueval; \	219	else if (!strcmp (val, "on")) target = trueval; \
163	else if (!strcmp (val, "off")) target = falseval; \	220	else if (!strcmp (val, "off")) target = falseval; \
164	else \	221	else \
165	slog (L_WARN, \
166	_("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"); \
167	name, var, fname, lineno);	223	} while (0)
168		224
169	void configuration::read_config (bool need_keys)	225	const char *
		226	configuration_parser::parse_line (char *line)
170	{	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	{
171	char *fname;	310	char *fname;
172	FILE *f;	311	FILE *f;
173		312
174	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
175		314
176	asprintf (&fname, "%s/vped.conf", confbase);
177	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
178		319
179	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;
180	{	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	{
181	char line[16384];	583	char line [2048];
182	int lineno = 0;	584	int lineno = 0;
183	char var, val;
184	conf_node *node = &default_node;
185		585
186	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
187	{	587	{
188	lineno++;	588	lineno++;
189		589
190	{	590	const char *warn = parse_line (line);
191	char *end = line + strlen (line);
192		591
193	while (*end < ' ' && end >= line)	592	if (warn)
194	end--;	593	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
195
196	*++end = 0;
197	}
198
199	char *tok = line;
200
201	retry:
202	var = strtok (tok, "\t =");
203	tok = 0;
204
205	if (!var \|\| !var[0])
206	continue; /* no tokens on this line */
207
208	if (var[0] == '#')
209	continue; /* comment: ignore */
210
211	val = strtok (NULL, "\t\n\r =");
212
213	if (!val \|\| val[0] == '#')
214	{
215	slog (L_WARN,
216	_("no value for variable `%s', at '%s' line %d"),
217	var, fname, lineno);
218	break;
219	}
220
221	if (!strcmp (var, "on"))
222	{
223	if (!::thisnode
224	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
225	\|\| !strcmp (val, ::thisnode))
226	goto retry;
227
228	continue;
229	}
230
231	// truly global
232	if (!strcmp (var, "loglevel"))
233	{
234	loglevel l = string_to_loglevel (val);
235
236	if (l != L_NONE)
237	llevel = l;
238	else
239	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
240	}
241	else if (!strcmp (var, "ip-proto"))
242	ip_proto = atoi (val);
243	#if ENABLE_ICMP
244	//TODO: error message
245	else if (!strcmp (var, "icmp-type"))
246	icmp_type = atoi (val);
247	#endif
248
249	// per config
250	else if (!strcmp (var, "node"))
251	{
252	default_node.id++;
253
254	node = new conf_node (default_node);
255
256	nodes.push_back (node);
257
258	node->nodename = strdup (val);
259
260	{
261	char *fname;
262	FILE *f;
263
264	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
265
266	f = fopen (fname, "r");
267	if (f)
268	{
269	node->rsa_key = RSA_new ();
270
271	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
272	{
273	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
274	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
275	exit (1);
276	}
277
278	RSA_blinding_on (node->rsa_key, 0);
279
280	fclose (f);
281	}
282	else
283	{
284	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
285
286	if (need_keys)
287	exit (1);
288	}
289
290	free (fname);
291	}
292
293	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
294	thisnode = node;
295	}
296	else if (!strcmp (var, "private-key"))
297	prikeyfile = strdup (val);
298	else if (!strcmp (var, "ifpersist"))
299	{
300	parse_bool (ifpersist, "ifpersist", true, false);
301	}
302	else if (!strcmp (var, "ifname"))
303	ifname = strdup (val);
304	else if (!strcmp (var, "rekey"))
305	rekey = atoi (val);
306	else if (!strcmp (var, "keepalive"))
307	keepalive = atoi (val);
308	else if (!strcmp (var, "mtu"))
309	mtu = atoi (val);
310	else if (!strcmp (var, "if-up"))
311	script_if_up = strdup (val);
312	else if (!strcmp (var, "node-up"))
313	script_node_up = strdup (val);
314	else if (!strcmp (var, "node-down"))
315	script_node_down = strdup (val);
316	#if ENABLE_HTTP_PROXY
317	else if (!strcmp (var, "http-proxy-host"))
318	proxy_host = strdup (val);
319	else if (!strcmp (var, "http-proxy-port"))
320	proxy_port = atoi (val);
321	else if (!strcmp (var, "http-proxy-auth"))
322	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
323	#endif
324
325	/* node-specific, non-defaultable */
326	else if (node != &default_node && !strcmp (var, "hostname"))
327	{
328	free (node->hostname);
329	node->hostname = strdup (val);
330	}
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "router-priority"))
338	node->routerprio = atoi (val);
339	else if (!strcmp (var, "connect"))
340	{
341	if (!strcmp (val, "ondemand"))
342	node->connectmode = conf_node::C_ONDEMAND;
343	else if (!strcmp (val, "never"))
344	node->connectmode = conf_node::C_NEVER;
345	else if (!strcmp (val, "always"))
346	node->connectmode = conf_node::C_ALWAYS;
347	else if (!strcmp (val, "disabled"))
348	node->connectmode = conf_node::C_DISABLED;
349	else
350	slog (L_WARN,
351	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
352	var, fname, lineno);
353	}
354	else if (!strcmp (var, "inherit-tos"))
355	{
356	parse_bool (node->inherit_tos, "inherit-tos", true, false);
357	}
358	else if (!strcmp (var, "compress"))
359	{
360	parse_bool (node->compress, "compress", true, false);
361	}
362	// all these bool options really really cost a lot of executable size!
363	else if (!strcmp (var, "enable-tcp"))
364	{
365	#if ENABLE_TCP
366	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
367	#endif
368	}
369	else if (!strcmp (var, "enable-icmp"))
370	{
371	#if ENABLE_ICMP
372	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
373	#endif
374	}
375	else if (!strcmp (var, "enable-udp"))
376	{
377	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
378	}
379	else if (!strcmp (var, "enable-rawip"))
380	{
381	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
382	}
383
384	// unknown or misplaced
385	else
386	slog (L_WARN,
387	_("unknown or misplaced variable `%s', at '%s' line %d"),
388	var, fname, lineno);
389	}	594	}
390		595
391	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
392	}	599	}
393	else	600	else
394	{	601	{
395	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));
396	exit (1);	603	exit (EXIT_FAILURE);
397	}	604	}
		605	}
398		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);
399	free (fname);	620	free (fname);
400		621
401	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
402		623
403	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
404	if (f)
405	{	625	{
406	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
407		627
408	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
409	{	629	{
410	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
411	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));
412	exit (1);	632	exit (EXIT_FAILURE);
413	}	633	}
414		634
415	RSA_blinding_on (rsa_key, 0);	635	require (RSA_blinding_on (conf.rsa_key, 0));
416		636
417	fclose (f);	637	fclose (f);
418	}	638	}
419	else	639	else
420	{	640	{
421	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
422
423	if (need_keys)	641	if (need_keys)
424	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	}
425	}	646	}
426		647
427	free (fname);	648	free (fname);
428	}
429		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 *
430	char configuration::config_filename (const char name, const char *dflt)	667	configuration::config_filename (const char name, const char dflt)
431	{	668	{
432	char *fname;	669	char *fname;
433		670
434	asprintf (&fname, name ? name : dflt, ::thisnode);	671	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
435		672
436	if (!ABSOLUTE_PATH (fname))	673	if (!ABSOLUTE_PATH (fname))
437	{	674	{
438	char *rname = fname;	675	char *rname = fname;
439	asprintf (&fname, "%s/%s", confbase, rname);	676	asprintf (&fname, "%s/%s", confbase, rname);
440	free (rname);	677	free (rname);
441	}	678	}
442		679
443	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	);
444	}	701	}
445		702
446	void	703	void
447	configuration::print ()	704	configuration::print ()
448	{	705	{
…		…
455	printf (_("interface: %s\n"), ifname);	712	printf (_("interface: %s\n"), ifname);
456	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	713	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
457	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	714	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
458	printf ("\n");	715	printf ("\n");
459		716
460	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	717	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
461	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	718	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
462		719
463	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	720	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
464	(*i)->print ();	721	(*i)->print ();
465		722
466	printf ("\n");	723	printf ("\n");
467	}	724	}
468		725
469	configuration::configuration ()	726	configuration::configuration ()
470	{	727	{
		728	asprintf (&confbase, "%s/gvpe", CONFDIR);
		729
471	init ();	730	init ();
472	}	731	}
473		732
474	configuration::~configuration ()	733	configuration::~configuration ()
475	{	734	{
476	cleanup ();	735	cleanup ();
477	}	736	}
478		737
479

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Comparing gvpe/src/conf.C (file contents): Revision 1.16 by pcg, Tue Oct 14 03:22:09 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 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC