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

Comparing gvpe/src/conf.C (file contents):
Revision 1.23 by pcg, Thu Jan 29 19:30:08 2004 UTC vs.
Revision 1.58 by root, Tue Jan 17 21:38:10 2012 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
6	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <cstdio>	34	#include <cstdio>
35	#include <openssl/pem.h>	47	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	49	#include <openssl/rand.h>
38	#include <openssl/bn.h>	50	#include <openssl/bn.h>
39		51
40	#include "gettext.h"
41
42	#include "conf.h"	52	#include "conf.h"
43	#include "slog.h"	53	#include "slog.h"
44	#include "util.h"	54	#include "util.h"
45		55
46	char *confbase;	56	char *confbase;
47	char *thisnode;	57	char *thisnode;
48	char *identname;	58	char *identname;
49	char *pidfilename;
50		59
51	struct configuration conf;	60	struct configuration conf;
52		61
		62	u8
53	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
54	{	64	{
55	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
56	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
57	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
58	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		70
60	return 0;	71	return 0;
61	}	72	}
62		73
		74	const char *
63	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
64	{	76	{
65	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	78	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
69		82
70	return "<unknown>";	83	return "<unknown>";
71	}	84	}
72		85
73	void	86	static bool
74	conf_node::print ()	87	match_list (const vector<const char > &list, const char str)
75	{	88	{
76	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 (); )
77	id,	90	if ((i)[0] == '' && !(*i)[1])
78	id >> 8, id & 0xff,	91	return true;
79	compress ? 'Y' : 'N',	92	else if (!strcmp (*i, str))
80	connectmode == C_ONDEMAND ? "ondemand" :	93	return true;
81	connectmode == C_NEVER ? "never" :	94
82	connectmode == C_ALWAYS ? "always" : "",	95	return false;
83	nodename,	96	}
84	hostname ? hostname : "",	97
85	hostname ? ":" : "",	98	bool
86	hostname ? udp_port : 0	99	conf_node::may_direct (struct conf_node *other)
87	);	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;
88	}	108	}
89		109
90	conf_node::~conf_node ()	110	conf_node::~conf_node ()
91	{	111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
92	if (rsa_key)	115	if (rsa_key)
93	RSA_free (rsa_key);	116	RSA_free (rsa_key);
94		117
95	free (nodename);	118	free (nodename);
96	free (hostname);	119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
97	}	126	}
98		127
		128	void
99	void configuration::init ()	129	configuration::init ()
100	{	130	{
101	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
102		132
103	mtu = DEFAULT_MTU;	133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
104	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
105	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
106	llevel = L_INFO;	137	llevel = L_INFO;
107	ip_proto = IPPROTO_GRE;	138	ip_proto = IPPROTO_GRE;
108	#if ENABLE_ICMP	139	#if ENABLE_ICMP
109	icmp_type = ICMP_ECHOREPLY;	140	icmp_type = ICMP_ECHOREPLY;
110	#endif	141	#endif
111		142
112	default_node.udp_port = DEFAULT_UDPPORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
113	default_node.tcp_port = DEFAULT_UDPPORT;	144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
114	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
115	default_node.compress = true;	146	default_node.compress = true;
116	default_node.protocols = PROT_UDPv4;	147	default_node.protocols = 0;
117	}	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 ("");
118		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_case_preserving = true;
		157	dns_forw_host = strdup ("127.0.0.1");
		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;
		163	#endif
		164
		165	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		166	}
		167
		168	void
119	void configuration::cleanup()	169	configuration::cleanup ()
120	{	170	{
121	if (rsa_key)	171	if (rsa_key)
122	RSA_free (rsa_key);	172	RSA_free (rsa_key);
123		173
124	rsa_key = 0;	174	rsa_key = 0;
125		175
126	free (ifname); ifname = 0;	176	free (pidfilename); pidfilename = 0;
		177	free (ifname); ifname = 0;
127	#if ENABLE_HTTP_PROXY	178	#if ENABLE_HTTP_PROXY
128	free (proxy_host); proxy_host = 0;	179	free (proxy_host); proxy_host = 0;
129	free (proxy_auth); proxy_auth = 0;	180	free (proxy_auth); proxy_auth = 0;
130	#endif	181	#endif
		182	#if ENABLE_DNS
		183	free (dns_forw_host); dns_forw_host = 0;
		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;
131	}	189	}
132		190
133	void	191	void
134	configuration::clear_config ()	192	configuration::clear ()
135	{	193	{
136	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)
137	delete *i;	195	delete *i;
138		196
139	nodes.clear ();	197	nodes.clear ();
140		198
141	cleanup ();	199	cleanup ();
142	init ();	200	init ();
143	}	201	}
144		202
		203	//static bool
		204	//is_true (const char *name)
		205	//{
		206	//re
		207	//}
		208
145	#define parse_bool(target,name,trueval,falseval) \	209	#define parse_bool(target,name,trueval,falseval) do { \
146	if (!strcmp (val, "yes")) target = trueval; \	210	if (!strcmp (val, "yes")) target = trueval; \
147	else if (!strcmp (val, "no")) target = falseval; \	211	else if (!strcmp (val, "no")) target = falseval; \
148	else if (!strcmp (val, "true")) target = trueval; \	212	else if (!strcmp (val, "true")) target = trueval; \
149	else if (!strcmp (val, "false")) target = falseval; \	213	else if (!strcmp (val, "false")) target = falseval; \
150	else if (!strcmp (val, "on")) target = trueval; \	214	else if (!strcmp (val, "on")) target = trueval; \
151	else if (!strcmp (val, "off")) target = falseval; \	215	else if (!strcmp (val, "off")) target = falseval; \
152	else \	216	else \
153	slog (L_WARN, \
154	_("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"); \
155	name, var, fname, lineno);	218	} while (0)
156		219
157	void configuration::read_config (bool need_keys)	220	const char *
		221	configuration_parser::parse_line (char *line)
158	{	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	{
159	char *fname;	290	char *fname;
160	FILE *f;	291	FILE *f;
161		292
162	clear_config ();	293	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
163		294
164	asprintf (&fname, "%s/vped.conf", confbase);
165	f = fopen (fname, "r");	295	f = fopen (fname, "r");
		296	if (f)
		297	{
		298	node->rsa_key = RSA_new ();
166		299
167	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;
168	{	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	{
169	char line[16384];	559	char line [2048];
170	int lineno = 0;	560	int lineno = 0;
171	char var, val;
172	conf_node *node = &default_node;
173		561
174	while (fgets (line, sizeof (line), f))	562	while (fgets (line, sizeof (line), f))
175	{	563	{
176	lineno++;	564	lineno++;
177		565
178	{	566	const char *warn = parse_line (line);
179	char *end = line + strlen (line);
180		567
181	while (*end < ' ' && end >= line)	568	if (warn)
182	end--;	569	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
183
184	*++end = 0;
185	}
186
187	char *tok = line;
188
189	retry:
190	var = strtok (tok, "\t =");
191	tok = 0;
192
193	if (!var \|\| !var[0])
194	continue; /* no tokens on this line */
195
196	if (var[0] == '#')
197	continue; /* comment: ignore */
198
199	val = strtok (NULL, "\t\n\r =");
200
201	if (!val \|\| val[0] == '#')
202	{
203	slog (L_WARN,
204	_("no value for variable `%s', at '%s' line %d"),
205	var, fname, lineno);
206	break;
207	}
208
209	if (!strcmp (var, "on"))
210	{
211	if (!::thisnode
212	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
213	\|\| !strcmp (val, ::thisnode))
214	goto retry;
215
216	continue;
217	}
218
219	// truly global
220	if (!strcmp (var, "loglevel"))
221	{
222	loglevel l = string_to_loglevel (val);
223
224	if (l != L_NONE)
225	llevel = l;
226	else
227	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
228	}
229	else if (!strcmp (var, "ip-proto"))
230	ip_proto = atoi (val);
231	else if (!strcmp (var, "icmp-type"))
232	{
233	#if ENABLE_ICMP
234	icmp_type = atoi (val);
235	#endif
236	}
237
238	// per config
239	else if (!strcmp (var, "node"))
240	{
241	default_node.id++;
242
243	node = new conf_node (default_node);
244
245	nodes.push_back (node);
246
247	node->nodename = strdup (val);
248
249	{
250	char *fname;
251	FILE *f;
252
253	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
254
255	f = fopen (fname, "r");
256	if (f)
257	{
258	node->rsa_key = RSA_new ();
259
260	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
261	{
262	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
263	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
264	exit (EXIT_FAILURE);
265	}
266
267	require (RSA_blinding_on (node->rsa_key, 0));
268
269	fclose (f);
270	}
271	else
272	{
273	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
274
275	if (need_keys)
276	exit (EXIT_FAILURE);
277	}
278
279	free (fname);
280	}
281
282	if (::thisnode && !strcmp (node->nodename, ::thisnode))
283	thisnode = node;
284	}
285	else if (!strcmp (var, "private-key"))
286	prikeyfile = strdup (val);
287	else if (!strcmp (var, "ifpersist"))
288	{
289	parse_bool (ifpersist, "ifpersist", true, false);
290	}
291	else if (!strcmp (var, "ifname"))
292	ifname = strdup (val);
293	else if (!strcmp (var, "rekey"))
294	rekey = atoi (val);
295	else if (!strcmp (var, "keepalive"))
296	keepalive = atoi (val);
297	else if (!strcmp (var, "mtu"))
298	mtu = atoi (val);
299	else if (!strcmp (var, "if-up"))
300	script_if_up = strdup (val);
301	else if (!strcmp (var, "node-up"))
302	script_node_up = strdup (val);
303	else if (!strcmp (var, "node-down"))
304	script_node_down = strdup (val);
305	else if (!strcmp (var, "http-proxy-host"))
306	{
307	#if ENABLE_HTTP_PROXY
308	proxy_host = strdup (val);
309	#endif
310	}
311	else if (!strcmp (var, "http-proxy-port"))
312	{
313	#if ENABLE_HTTP_PROXY
314	proxy_port = atoi (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-auth"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
321	#endif
322	}
323
324	/* node-specific, non-defaultable */
325	else if (node != &default_node && !strcmp (var, "hostname"))
326	{
327	free (node->hostname);
328	node->hostname = strdup (val);
329	}
330
331	/* node-specific, defaultable */
332	else if (!strcmp (var, "udp-port"))
333	node->udp_port = atoi (val);
334	else if (!strcmp (var, "tcp-port"))
335	node->tcp_port = atoi (val);
336	else if (!strcmp (var, "router-priority"))
337	node->routerprio = atoi (val);
338	else if (!strcmp (var, "connect"))
339	{
340	if (!strcmp (val, "ondemand"))
341	node->connectmode = conf_node::C_ONDEMAND;
342	else if (!strcmp (val, "never"))
343	node->connectmode = conf_node::C_NEVER;
344	else if (!strcmp (val, "always"))
345	node->connectmode = conf_node::C_ALWAYS;
346	else if (!strcmp (val, "disabled"))
347	node->connectmode = conf_node::C_DISABLED;
348	else
349	slog (L_WARN,
350	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
351	var, fname, lineno);
352	}
353	else if (!strcmp (var, "inherit-tos"))
354	{
355	parse_bool (node->inherit_tos, "inherit-tos", true, false);
356	}
357	else if (!strcmp (var, "compress"))
358	{
359	parse_bool (node->compress, "compress", true, false);
360	}
361	// all these bool options really really cost a lot of executable size!
362	else if (!strcmp (var, "enable-tcp"))
363	{
364	#if ENABLE_TCP
365	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
366	#endif
367	}
368	else if (!strcmp (var, "enable-icmp"))
369	{
370	#if ENABLE_ICMP
371	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
372	#endif
373	}
374	else if (!strcmp (var, "enable-udp"))
375	{
376	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
377	}
378	else if (!strcmp (var, "enable-rawip"))
379	{
380	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
381	}
382
383	// unknown or misplaced
384	else
385	slog (L_WARN,
386	_("unknown or misplaced variable `%s', at '%s' line %d"),
387	var, fname, lineno);
388	}	570	}
389		571
390	fclose (f);	572	fclose (f);
		573
		574	parse_argv ();
391	}	575	}
392	else	576	else
393	{	577	{
394	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));
395	exit (EXIT_FAILURE);	579	exit (EXIT_FAILURE);
396	}	580	}
		581	}
397		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);
398	free (fname);	596	free (fname);
399		597
400	fname = config_filename (prikeyfile, "hostkey");	598	fname = conf.config_filename (conf.prikeyfile, "hostkey");
401		599
402	f = fopen (fname, "r");	600	if (FILE *f = fopen (fname, "r"))
403	if (f)
404	{	601	{
405	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
406		603
407	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
408	{	605	{
409	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
410	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));
411	exit (EXIT_FAILURE);	608	exit (EXIT_FAILURE);
412	}	609	}
413		610
414	require (RSA_blinding_on (rsa_key, 0));	611	require (RSA_blinding_on (conf.rsa_key, 0));
415		612
416	fclose (f);	613	fclose (f);
417	}	614	}
418	else	615	else
419	{	616	{
…		…
421		618
422	if (need_keys)	619	if (need_keys)
423	exit (EXIT_FAILURE);	620	exit (EXIT_FAILURE);
424	}	621	}
425		622
		623	free (fname);
		624
426	if (need_keys && ::thisnode	625	if (need_keys && ::thisnode
427	&& rsa_key && thisnode && thisnode->rsa_key)	626	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
428	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
429	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	628	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
430	{	629	{
431	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);
432	exit (EXIT_FAILURE);	631	exit (EXIT_FAILURE);
433	}	632	}
434		633
435	free (fname);	634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
436	}	636	}
437		637
		638	char *
438	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
439	{	640	{
440	char *fname;	641	char *fname;
441		642
442	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
443		644
…		…
447	asprintf (&fname, "%s/%s", confbase, rname);	648	asprintf (&fname, "%s/%s", confbase, rname);
448	free (rname);	649	free (rname);
449	}	650	}
450		651
451	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	);
452	}	673	}
453		674
454	void	675	void
455	configuration::print ()	676	configuration::print ()
456	{	677	{
…		…
463	printf (_("interface: %s\n"), ifname);	684	printf (_("interface: %s\n"), ifname);
464	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	685	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
465	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);
466	printf ("\n");	687	printf ("\n");
467		688
468	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	689	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
469	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	690	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
470		691
471	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	692	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
472	(*i)->print ();	693	(*i)->print ();
473		694
474	printf ("\n");	695	printf ("\n");
475	}	696	}
476		697
477	configuration::configuration ()	698	configuration::configuration ()
478	{	699	{
		700	asprintf (&confbase, "%s/gvpe", CONFDIR);
		701
479	init ();	702	init ();
480	}	703	}
481		704
482	configuration::~configuration ()	705	configuration::~configuration ()
483	{	706	{
484	cleanup ();	707	cleanup ();
485	}	708	}
486		709
487

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Comparing gvpe/src/conf.C (file contents): Revision 1.23 by pcg, Thu Jan 29 19:30:08 2004 UTC vs. Revision 1.58 by root, Tue Jan 17 21:38:10 2012 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.23 by pcg, Thu Jan 29 19:30:08 2004 UTC vs.
Revision 1.58 by root, Tue Jan 17 21:38:10 2012 UTC