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

Comparing gvpe/src/conf.C (file contents):
Revision 1.33 by pcg, Sun Mar 6 18:34:46 2005 UTC vs.
Revision 1.56 by root, Sun Mar 6 21:01:36 2011 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>
37	#include <openssl/pem.h>	47	#include <openssl/pem.h>
38	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
39	#include <openssl/rand.h>	49	#include <openssl/rand.h>
40	#include <openssl/bn.h>	50	#include <openssl/bn.h>
41		51
42	#include "gettext.h"
43
44	#include "conf.h"	52	#include "conf.h"
45	#include "slog.h"	53	#include "slog.h"
46	#include "util.h"	54	#include "util.h"
47		55
48	char *confbase;	56	char *confbase;
49	char *thisnode;	57	char *thisnode;
50	char *identname;	58	char *identname;
51		59
52	struct configuration conf;	60	struct configuration conf;
53		61
		62	u8
54	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
55	{	64	{
56	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
57	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
58	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
59	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
60	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		70
62	return 0;	71	return 0;
63	}	72	}
64		73
		74	const char *
65	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
66	{	76	{
67	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
68	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
69	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
70	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
71	if (protocol & PROT_DNSv4 ) return "dns";	81	if (protocol & PROT_DNSv4 ) return "dns";
72		82
73	return "<unknown>";	83	return "<unknown>";
74	}	84	}
75		85
76	void	86	static bool
77	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
78	{	88	{
79	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
80	id,	90	if ((i)[0] == '' && !(*i)[1])
81	id >> 8, id & 0xff,	91	return true;
82	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
83	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
84	connectmode == C_NEVER ? "never" :	94
85	connectmode == C_ALWAYS ? "always" : "",	95	return false;
86	nodename,	96	}
87	hostname ? hostname : "",	97
88	hostname ? ":" : "",	98	bool
89	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
90	);	100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
91	}	108	}
92		109
93	conf_node::~conf_node ()	110	conf_node::~conf_node ()
94	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
95	if (rsa_key)	115	if (rsa_key)
96	RSA_free (rsa_key);	116	RSA_free (rsa_key);
97		117
98	free (nodename);	118	free (nodename);
99	free (hostname);	119	free (hostname);
		120	free (if_up_data);
100	#if ENABLE_DNS	121	#if ENABLE_DNS
101	free (domain);	122	free (domain);
102	free (dns_hostname);	123	free (dns_hostname);
103	#endif	124	#endif
		125	#endif
104	}	126	}
105		127
		128	void
106	void configuration::init ()	129	configuration::init ()
107	{	130	{
108	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
109		132
110	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
111	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
112	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
113	llevel = L_INFO;	137	llevel = L_INFO;
114	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
115	#if ENABLE_ICMP	139	#if ENABLE_ICMP
…		…
120	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
121	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
122	default_node.compress = true;	146	default_node.compress = true;
123	default_node.protocols = 0;	147	default_node.protocols = 0;
124	default_node.max_retry = DEFAULT_MAX_RETRY;	148	default_node.max_retry = DEFAULT_MAX_RETRY;
		149	default_node.max_ttl = DEFAULT_MAX_TTL;
		150	default_node.max_queue = DEFAULT_MAX_QUEUE;
		151	default_node.if_up_data = strdup ("");
125		152
126	#if ENABLE_DNS	153	#if ENABLE_DNS
127	default_node.dns_port = 0; // default is 0 == client	154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_case_preserving = true;
128	dns_forw_host = strdup ("127.0.0.1");	157	dns_forw_host = strdup ("127.0.0.1");
129	dns_forw_port = 53;	158	dns_forw_port = 53;
		159	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		160	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		161	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		162	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
130	#endif	163	#endif
131		164
132	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	165	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
133	}	166	}
134		167
		168	void
135	void configuration::cleanup()	169	configuration::cleanup ()
136	{	170	{
137	if (rsa_key)	171	if (rsa_key)
138	RSA_free (rsa_key);	172	RSA_free (rsa_key);
139		173
140	rsa_key = 0;	174	rsa_key = 0;
141		175
142	free (pidfilename); pidfilename = 0;	176	free (pidfilename); pidfilename = 0;
143	free (ifname); ifname = 0;	177	free (ifname); ifname = 0;
144	#if ENABLE_HTTP_PROXY	178	#if ENABLE_HTTP_PROXY
145	free (proxy_host); proxy_host = 0;	179	free (proxy_host); proxy_host = 0;
146	free (proxy_auth); proxy_auth = 0;	180	free (proxy_auth); proxy_auth = 0;
147	#endif	181	#endif
148	#if ENABLE_DNS	182	#if ENABLE_DNS
149	free (dns_forw_host); dns_forw_host = 0;	183	free (dns_forw_host); dns_forw_host = 0;
150	#endif	184	#endif
		185	free (script_if_up); script_if_up = 0;
		186	free (script_node_up); script_node_up = 0;
		187	free (script_node_change); script_node_change = 0;
		188	free (script_node_down); script_node_down = 0;
151	}	189	}
152		190
153	void	191	void
154	configuration::clear_config ()	192	configuration::clear ()
155	{	193	{
156	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	194	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
157	delete *i;	195	delete *i;
158		196
159	nodes.clear ();	197	nodes.clear ();
160		198
161	cleanup ();	199	cleanup ();
162	init ();	200	init ();
163	}	201	}
164		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
165	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
166	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
167	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
168	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
169	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
170	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
171	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
172	else \	216	else \
173	slog (L_WARN, \
174	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	217	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
175	name, var, fname, lineno);	218	} while (0)
176		219
177	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
178	{	222	{
		223	{
		224	char *end = line + strlen (line);
		225
		226	while (*end < ' ' && end >= line)
		227	end--;
		228
		229	*++end = 0;
		230	}
		231
		232	char *tok = line;
		233	const char *var = strtok (tok, "\t =");
		234	tok = 0;
		235
		236	if (!var \|\| !var[0])
		237	return 0; /* no tokens on this line */
		238
		239	if (var[0] == '#')
		240	return 0; /* comment: ignore */
		241
		242	char *val = strtok (NULL, "\t\n\r =");
		243
		244	if (!val \|\| val[0] == '#')
		245	return _("no value given for variable, ignored");
		246
		247	else if (!strcmp (var, "on"))
		248	{
		249	if (::thisnode
		250	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		251	\|\| !strcmp (val, ::thisnode)))
		252	return parse_line (strtok (NULL, "\n\r"));
		253	}
		254
		255	else if (!strcmp (var, "include"))
		256	{
		257	char *fname = conf.config_filename (val);
		258	parse_file (fname);
		259	free (fname);
		260	}
		261
		262	// truly global
		263	else if (!strcmp (var, "loglevel"))
		264	{
		265	loglevel l = string_to_loglevel (val);
		266
		267	if (l == L_NONE)
		268	return _("unknown loglevel, ignored");
		269	}
		270	else if (!strcmp (var, "ip-proto"))
		271	conf.ip_proto = atoi (val);
		272	else if (!strcmp (var, "icmp-type"))
		273	{
		274	#if ENABLE_ICMP
		275	conf.icmp_type = atoi (val);
		276	#endif
		277	}
		278
		279	// per config
		280	else if (!strcmp (var, "node"))
		281	{
		282	parse_argv ();
		283
		284	conf.default_node.id++;
		285	node = new conf_node (conf.default_node);
		286	conf.nodes.push_back (node);
		287	node->nodename = strdup (val);
		288
		289	{
179	char *fname;	290	char *fname;
180	FILE *f;	291	FILE *f;
181		292
182	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
183		294
184	asprintf (&fname, "%s/gvpe.conf", confbase);
185	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
186		299
187	if (f)	300	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		301	{
		302	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		303	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	require (RSA_blinding_on (node->rsa_key, 0));
		308
		309	fclose (f);
		310	}
		311	else
		312	{
		313	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		314
		315	if (need_keys)
		316	exit (EXIT_FAILURE);
		317	}
		318
		319	free (fname);
		320	}
		321
		322	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		323	conf.thisnode = node;
188	{	324	}
		325	else if (!strcmp (var, "private-key"))
		326	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		327	else if (!strcmp (var, "ifpersist"))
		328	parse_bool (conf.ifpersist, "ifpersist", true, false);
		329	else if (!strcmp (var, "ifname"))
		330	free (conf.ifname), conf.ifname = strdup (val);
		331	else if (!strcmp (var, "rekey"))
		332	conf.rekey = atoi (val);
		333	else if (!strcmp (var, "keepalive"))
		334	conf.keepalive = atoi (val);
		335	else if (!strcmp (var, "mtu"))
		336	conf.mtu = atoi (val);
		337	else if (!strcmp (var, "nfmark"))
		338	conf.nfmark = atoi (val);
		339	else if (!strcmp (var, "if-up"))
		340	free (conf.script_if_up), conf.script_if_up = strdup (val);
		341	else if (!strcmp (var, "node-up"))
		342	free (conf.script_node_up), conf.script_node_up = strdup (val);
		343	else if (!strcmp (var, "node-change"))
		344	free (conf.script_node_change), conf.script_node_change = strdup (val);
		345	else if (!strcmp (var, "node-down"))
		346	free (conf.script_node_down), conf.script_node_down = strdup (val);
		347	else if (!strcmp (var, "pid-file"))
		348	free (conf.pidfilename), conf.pidfilename = strdup (val);
		349	else if (!strcmp (var, "dns-forw-host"))
		350	{
		351	#if ENABLE_DNS
		352	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-forw-port"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_forw_port = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-timeout-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_timeout_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-send-interval"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_send_interval = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "dns-overlap-factor"))
		374	{
		375	#if ENABLE_DNS
		376	conf.dns_overlap_factor = atof (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-max-outstanding"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_max_outstanding = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-case-preserving"))
		386	{
		387	#if ENABLE_DNS
		388	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		389	#endif
		390	}
		391	else if (!strcmp (var, "http-proxy-host"))
		392	{
		393	#if ENABLE_HTTP_PROXY
		394	free (conf.proxy_host), conf.proxy_host = strdup (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "http-proxy-port"))
		398	{
		399	#if ENABLE_HTTP_PROXY
		400	conf.proxy_port = atoi (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "http-proxy-auth"))
		404	{
		405	#if ENABLE_HTTP_PROXY
		406	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		407	#endif
		408	}
		409
		410	/* node-specific, non-defaultable */
		411	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		412	free (node->hostname), node->hostname = strdup (val);
		413
		414	/* node-specific, defaultable */
		415	else if (!strcmp (var, "udp-port"))
		416	node->udp_port = atoi (val);
		417	else if (!strcmp (var, "tcp-port"))
		418	node->tcp_port = atoi (val);
		419	else if (!strcmp (var, "dns-hostname"))
		420	{
		421	#if ENABLE_DNS
		422	free (node->dns_hostname), node->dns_hostname = strdup (val);
		423	#endif
		424	}
		425	else if (!strcmp (var, "dns-port"))
		426	{
		427	#if ENABLE_DNS
		428	node->dns_port = atoi (val);
		429	#endif
		430	}
		431	else if (!strcmp (var, "dns-domain"))
		432	{
		433	#if ENABLE_DNS
		434	free (node->domain), node->domain = strdup (val);
		435	#endif
		436	}
		437	else if (!strcmp (var, "if-up-data"))
		438	free (node->if_up_data), node->if_up_data = strdup (val);
		439	else if (!strcmp (var, "router-priority"))
		440	node->routerprio = atoi (val);
		441	else if (!strcmp (var, "max-retry"))
		442	node->max_retry = atoi (val);
		443	else if (!strcmp (var, "connect"))
		444	{
		445	if (!strcmp (val, "ondemand"))
		446	node->connectmode = conf_node::C_ONDEMAND;
		447	else if (!strcmp (val, "never"))
		448	node->connectmode = conf_node::C_NEVER;
		449	else if (!strcmp (val, "always"))
		450	node->connectmode = conf_node::C_ALWAYS;
		451	else if (!strcmp (val, "disabled"))
		452	node->connectmode = conf_node::C_DISABLED;
		453	else
		454	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		455	}
		456	else if (!strcmp (var, "inherit-tos"))
		457	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		458	else if (!strcmp (var, "compress"))
		459	parse_bool (node->compress, "compress", true, false);
		460	// all these bool options really really cost a lot of executable size!
		461	else if (!strcmp (var, "enable-tcp"))
		462	{
		463	#if ENABLE_TCP
		464	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		465	#endif
		466	}
		467	else if (!strcmp (var, "enable-icmp"))
		468	{
		469	#if ENABLE_ICMP
		470	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		471	#endif
		472	}
		473	else if (!strcmp (var, "enable-dns"))
		474	{
		475	#if ENABLE_DNS
		476	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		477	#endif
		478	}
		479	else if (!strcmp (var, "enable-udp"))
		480	{
		481	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		482	}
		483	else if (!strcmp (var, "enable-rawip"))
		484	{
		485	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		486	}
		487	else if (!strcmp (var, "allow-direct"))
		488	node->allow_direct.push_back (strdup (val));
		489	else if (!strcmp (var, "deny-direct"))
		490	node->deny_direct.push_back (strdup (val));
		491	else if (!strcmp (var, "max-ttl"))
		492	node->max_ttl = atof (val);
		493	else if (!strcmp (var, "max-queue"))
		494	node->max_queue = atoi (val);
		495
		496	// unknown or misplaced
		497	else
		498	return _("unknown configuration directive - ignored");
		499
		500	return 0;
		501	}
		502
		503	void
		504	conf_node::finalise ()
		505	{
		506	if (max_queue < 1)
		507	{
		508	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		509	max_queue = 1;
		510	}
		511
		512	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		513	{
		514	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		515	connectmode = C_ALWAYS;
		516	}
		517	}
		518
		519	void
		520	configuration_parser::parse_argv ()
		521	{
		522	for (int i = 0; i < argc; ++i)
		523	{
		524	char *v = argv [i];
		525
		526	if (!*v)
		527	continue;
		528
		529	char *enode = v;
		530
		531	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		532	enode++;
		533
		534	if (*enode != '.')
		535	enode = 0;
		536
		537	char *wnode = node == &conf.default_node
		538	? 0
		539	: node->nodename;
		540
		541	if ((!wnode && !enode)
		542	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		543	{
		544	const char *warn = parse_line (enode ? enode + 1 : v);
		545
		546	if (warn)
		547	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		548
		549	*v = 0;
		550	}
		551	}
		552	}
		553
		554	void
		555	configuration_parser::parse_file (const char *fname)
		556	{
		557	if (FILE *f = fopen (fname, "r"))
		558	{
189	char line[16384];	559	char line [2048];
190	int lineno = 0;	560	int lineno = 0;
191	char var, val;
192	conf_node *node = &default_node;
193		561
194	while (fgets (line, sizeof (line), f))	562	while (fgets (line, sizeof (line), f))
195	{	563	{
196	lineno++;	564	lineno++;
197		565
198	{	566	const char *warn = parse_line (line);
199	char *end = line + strlen (line);
200		567
201	while (*end < ' ' && end >= line)	568	if (warn)
202	end--;	569	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
203
204	*++end = 0;
205	}
206
207	char *tok = line;
208
209	retry:
210	var = strtok (tok, "\t =");
211	tok = 0;
212
213	if (!var \|\| !var[0])
214	continue; /* no tokens on this line */
215
216	if (var[0] == '#')
217	continue; /* comment: ignore */
218
219	val = strtok (NULL, "\t\n\r =");
220
221	if (!val \|\| val[0] == '#')
222	{
223	slog (L_WARN,
224	_("no value for variable `%s', at '%s' line %d"),
225	var, fname, lineno);
226	break;
227	}
228
229	if (!strcmp (var, "on"))
230	{
231	if (!::thisnode
232	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
233	\|\| !strcmp (val, ::thisnode))
234	goto retry;
235
236	continue;
237	}
238
239	// truly global
240	if (!strcmp (var, "loglevel"))
241	{
242	loglevel l = string_to_loglevel (val);
243
244	if (l != L_NONE)
245	llevel = l;
246	else
247	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
248	}
249	else if (!strcmp (var, "ip-proto"))
250	ip_proto = atoi (val);
251	else if (!strcmp (var, "icmp-type"))
252	{
253	#if ENABLE_ICMP
254	icmp_type = atoi (val);
255	#endif
256	}
257
258	// per config
259	else if (!strcmp (var, "node"))
260	{
261	default_node.id++;
262
263	node = new conf_node (default_node);
264
265	nodes.push_back (node);
266
267	node->nodename = strdup (val);
268
269	{
270	char *fname;
271	FILE *f;
272
273	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
274
275	f = fopen (fname, "r");
276	if (f)
277	{
278	node->rsa_key = RSA_new ();
279
280	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
281	{
282	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
283	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
284	exit (EXIT_FAILURE);
285	}
286
287	require (RSA_blinding_on (node->rsa_key, 0));
288
289	fclose (f);
290	}
291	else
292	{
293	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
294
295	if (need_keys)
296	exit (EXIT_FAILURE);
297	}
298
299	free (fname);
300	}
301
302	if (::thisnode && !strcmp (node->nodename, ::thisnode))
303	thisnode = node;
304	}
305	else if (!strcmp (var, "private-key"))
306	free (prikeyfile), prikeyfile = strdup (val);
307	else if (!strcmp (var, "ifpersist"))
308	{
309	parse_bool (ifpersist, "ifpersist", true, false);
310	}
311	else if (!strcmp (var, "ifname"))
312	free (ifname), ifname = strdup (val);
313	else if (!strcmp (var, "rekey"))
314	rekey = atoi (val);
315	else if (!strcmp (var, "keepalive"))
316	keepalive = atoi (val);
317	else if (!strcmp (var, "mtu"))
318	mtu = atoi (val);
319	else if (!strcmp (var, "if-up"))
320	free (script_if_up), script_if_up = strdup (val);
321	else if (!strcmp (var, "node-up"))
322	free (script_node_up), script_node_up = strdup (val);
323	else if (!strcmp (var, "node-down"))
324	free (script_node_down), script_node_down = strdup (val);
325	else if (!strcmp (var, "pid-file"))
326	free (pidfilename), pidfilename = strdup (val);
327	#if ENABLE_DNS
328	else if (!strcmp (var, "dns-forw-host"))
329	free (dns_forw_host), dns_forw_host = strdup (val);
330	else if (!strcmp (var, "dns-forw-port"))
331	dns_forw_port = atoi (val);
332	#endif
333	else if (!strcmp (var, "http-proxy-host"))
334	{
335	#if ENABLE_HTTP_PROXY
336	free (proxy_host), proxy_host = strdup (val);
337	#endif
338	}
339	else if (!strcmp (var, "http-proxy-port"))
340	{
341	#if ENABLE_HTTP_PROXY
342	proxy_port = atoi (val);
343	#endif
344	}
345	else if (!strcmp (var, "http-proxy-auth"))
346	{
347	#if ENABLE_HTTP_PROXY
348	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
349	#endif
350	}
351
352	/* node-specific, non-defaultable */
353	else if (node != &default_node && !strcmp (var, "hostname"))
354	free (node->hostname), node->hostname = strdup (val);
355
356	/* node-specific, defaultable */
357	else if (!strcmp (var, "udp-port"))
358	node->udp_port = atoi (val);
359	else if (!strcmp (var, "tcp-port"))
360	node->tcp_port = atoi (val);
361	#if ENABLE_DNS
362	else if (!strcmp (var, "dns-hostname"))
363	free (node->dns_hostname), node->dns_hostname = strdup (val);
364	else if (!strcmp (var, "dns-port"))
365	node->dns_port = atoi (val);
366	else if (!strcmp (var, "dns-domain"))
367	free (node->domain), node->domain = strdup (val);
368	#endif
369	else if (!strcmp (var, "router-priority"))
370	node->routerprio = atoi (val);
371	else if (!strcmp (var, "max-retry"))
372	node->max_retry = atoi (val);
373	else if (!strcmp (var, "connect"))
374	{
375	if (!strcmp (val, "ondemand"))
376	node->connectmode = conf_node::C_ONDEMAND;
377	else if (!strcmp (val, "never"))
378	node->connectmode = conf_node::C_NEVER;
379	else if (!strcmp (val, "always"))
380	node->connectmode = conf_node::C_ALWAYS;
381	else if (!strcmp (val, "disabled"))
382	node->connectmode = conf_node::C_DISABLED;
383	else
384	slog (L_WARN,
385	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
386	var, fname, lineno);
387	}
388	else if (!strcmp (var, "inherit-tos"))
389	{
390	parse_bool (node->inherit_tos, "inherit-tos", true, false);
391	}
392	else if (!strcmp (var, "compress"))
393	{
394	parse_bool (node->compress, "compress", true, false);
395	}
396	// all these bool options really really cost a lot of executable size!
397	else if (!strcmp (var, "enable-tcp"))
398	{
399	#if ENABLE_TCP
400	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
401	#endif
402	}
403	else if (!strcmp (var, "enable-icmp"))
404	{
405	#if ENABLE_ICMP
406	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
407	#endif
408	}
409	else if (!strcmp (var, "enable-dns"))
410	{
411	#if ENABLE_DNS
412	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
413	#endif
414	}
415	else if (!strcmp (var, "enable-udp"))
416	{
417	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
418	}
419	else if (!strcmp (var, "enable-rawip"))
420	{
421	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
422	}
423
424	// unknown or misplaced
425	else
426	slog (L_WARN,
427	_("unknown or misplaced variable `%s', at '%s' line %d"),
428	var, fname, lineno);
429	}	570	}
430		571
431	fclose (f);	572	fclose (f);
		573
		574	parse_argv ();
432	}	575	}
433	else	576	else
434	{	577	{
435	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	578	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
436	exit (EXIT_FAILURE);	579	exit (EXIT_FAILURE);
437	}	580	}
		581	}
438		582
		583	configuration_parser::configuration_parser (configuration &conf,
		584	bool need_keys,
		585	int argc,
		586	char **argv)
		587	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		588	{
		589	char *fname;
		590
		591	conf.clear ();
		592	node = &conf.default_node;
		593
		594	asprintf (&fname, "%s/gvpe.conf", confbase);
		595	parse_file (fname);
439	free (fname);	596	free (fname);
440		597
441	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
442		599
443	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
444	if (f)
445	{	601	{
446	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
447		603
448	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
449	{	605	{
450	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
451	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	607	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
452	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
453	}	609	}
454		610
455	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
456		612
457	fclose (f);	613	fclose (f);
458	}	614	}
459	else	615	else
460	{	616	{
…		…
462		618
463	if (need_keys)	619	if (need_keys)
464	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
465	}	621	}
466		622
		623	free (fname);
		624
467	if (need_keys && ::thisnode	625	if (need_keys && ::thisnode
468	&& rsa_key && thisnode && thisnode->rsa_key)	626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
469	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	627	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
470	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
471	{	629	{
472	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	630	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
473	exit (EXIT_FAILURE);	631	exit (EXIT_FAILURE);
474	}	632	}
475		633
476	free (fname);	634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
477	}	636	}
478		637
		638	char *
479	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
480	{	640	{
481	char *fname;	641	char *fname;
482		642
483	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
484		644
…		…
488	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
489	free (rname);	649	free (rname);
490	}	650	}
491		651
492	return fname;	652	return fname;
		653	}
		654
		655	void
		656	conf_node::print ()
		657	{
		658	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		659	id,
		660	id >> 8, id & 0xff,
		661	compress ? 'Y' : 'N',
		662	connectmode == C_ONDEMAND ? "ondemand"
		663	: connectmode == C_NEVER ? "never"
		664	: connectmode == C_ALWAYS ? "always"
		665	: connectmode == C_DISABLED ? "disabled"
		666	: "",
		667	nodename,
		668	protocols,
		669	hostname ? hostname : "",
		670	hostname ? ":" : "",
		671	hostname ? udp_port : 0
		672	);
493	}	673	}
494		674
495	void	675	void
496	configuration::print ()	676	configuration::print ()
497	{	677	{
…		…
504	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
505	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
506	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	686	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
507	printf ("\n");	687	printf ("\n");
508		688
509	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
510	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
511		691
512	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
513	(*i)->print ();	693	(*i)->print ();
514		694
515	printf ("\n");	695	printf ("\n");
…		…
525	configuration::~configuration ()	705	configuration::~configuration ()
526	{	706	{
527	cleanup ();	707	cleanup ();
528	}	708	}
529		709
530

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Comparing gvpe/src/conf.C (file contents): Revision 1.33 by pcg, Sun Mar 6 18:34:46 2005 UTC vs. Revision 1.56 by root, Sun Mar 6 21:01:36 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.33 by pcg, Sun Mar 6 18:34:46 2005 UTC vs.
Revision 1.56 by root, Sun Mar 6 21:01:36 2011 UTC