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

Comparing gvpe/src/conf.C (file contents):
Revision 1.26 by pcg, Wed May 12 13:32:13 2004 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 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		59
50	struct configuration conf;	60	struct configuration conf;
51		61
		62	u8
52	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
53	{	64	{
		65	#if 1//D2
		66	if (protset & PROT_IPv42 ) return PROT_IPv42;
		67	#endif
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	68	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	72	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		73
60	return 0;	74	return 0;
61	}	75	}
62		76
		77	const char *
63	const char *strprotocol (u8 protocol)	78	strprotocol (u8 protocol)
64	{	79	{
		80	#if 1//D2
		81	if (protocol & PROT_IPv42 ) return "rawip2";
		82	#endif
65	if (protocol & PROT_IPv4 ) return "rawip";	83	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	84	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	85	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	86	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	87	if (protocol & PROT_DNSv4 ) return "dns";
70		88
71	return "<unknown>";	89	return "<unknown>";
72	}	90	}
73		91
74	void	92	static bool
75	conf_node::print ()	93	match_list (const vector<const char > &list, const char str)
76	{	94	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	95	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	96	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	97	return true;
80	compress ? 'Y' : 'N',	98	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	99	return true;
82	connectmode == C_NEVER ? "never" :	100
83	connectmode == C_ALWAYS ? "always" : "",	101	return false;
84	nodename,	102	}
85	hostname ? hostname : "",	103
86	hostname ? ":" : "",	104	bool
87	hostname ? udp_port : 0	105	conf_node::may_direct (struct conf_node *other)
88	);	106	{
		107	if (match_list (allow_direct, other->nodename))
		108	return true;
		109
		110	if (match_list (deny_direct, other->nodename))
		111	return false;
		112
		113	return true;
89	}	114	}
90		115
91	conf_node::~conf_node ()	116	conf_node::~conf_node ()
92	{	117	{
		118	#if 0
		119	// does not work, because string pointers etc. are shared
		120	// is not called, however
93	if (rsa_key)	121	if (rsa_key)
94	RSA_free (rsa_key);	122	RSA_free (rsa_key);
95		123
96	free (nodename);	124	free (nodename);
97	free (hostname);	125	free (hostname);
		126	free (if_up_data);
		127	#if ENABLE_DNS
		128	free (domain);
		129	free (dns_hostname);
		130	#endif
		131	#endif
98	}	132	}
99		133
		134	void
100	void configuration::init ()	135	configuration::init ()
101	{	136	{
102	memset (this, 0, sizeof (*this));	137	memset (this, 0, sizeof (*this));
103		138
104	mtu = DEFAULT_MTU;	139	mtu = DEFAULT_MTU;
		140	nfmark = 0;
105	rekey = DEFAULT_REKEY;	141	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	142	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	143	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	144	ip_proto = IPPROTO_GRE;
		145	#if 1 //D2
		146	ip2_proto = 7;
		147	#endif
109	#if ENABLE_ICMP	148	#if ENABLE_ICMP
110	icmp_type = ICMP_ECHOREPLY;	149	icmp_type = ICMP_ECHOREPLY;
111	#endif	150	#endif
112		151
113	default_node.udp_port = DEFAULT_UDPPORT;	152	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	153	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	154	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	155	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	156	default_node.protocols = 0;
		157	default_node.max_retry = DEFAULT_MAX_RETRY;
		158	default_node.max_ttl = DEFAULT_MAX_TTL;
		159	default_node.max_queue = DEFAULT_MAX_QUEUE;
		160	default_node.if_up_data = strdup ("");
118		161
		162	#if ENABLE_DNS
		163	default_node.dns_port = 0; // default is 0 == client
		164
		165	dns_case_preserving = true;
		166	dns_forw_host = strdup ("127.0.0.1");
		167	dns_forw_port = 53;
		168	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		169	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		170	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		171	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		172	#endif
		173
119	conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid");	174	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
120	}	175	}
121		176
		177	void
122	void configuration::cleanup()	178	configuration::cleanup ()
123	{	179	{
124	if (rsa_key)	180	if (rsa_key)
125	RSA_free (rsa_key);	181	RSA_free (rsa_key);
126		182
127	rsa_key = 0;	183	rsa_key = 0;
128		184
129	free (pidfilename); pidfilename = 0;	185	free (pidfilename); pidfilename = 0;
130	free (ifname); ifname = 0;	186	free (ifname); ifname = 0;
131	#if ENABLE_HTTP_PROXY	187	#if ENABLE_HTTP_PROXY
132	free (proxy_host); proxy_host = 0;	188	free (proxy_host); proxy_host = 0;
133	free (proxy_auth); proxy_auth = 0;	189	free (proxy_auth); proxy_auth = 0;
134	#endif	190	#endif
		191	#if ENABLE_DNS
		192	free (dns_forw_host); dns_forw_host = 0;
		193	#endif
		194	free (script_if_up); script_if_up = 0;
		195	free (script_node_up); script_node_up = 0;
		196	free (script_node_change); script_node_change = 0;
		197	free (script_node_down); script_node_down = 0;
135	}	198	}
136		199
137	void	200	void
138	configuration::clear_config ()	201	configuration::clear ()
139	{	202	{
140	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	203	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
141	delete *i;	204	delete *i;
142		205
143	nodes.clear ();	206	nodes.clear ();
144		207
145	cleanup ();	208	cleanup ();
146	init ();	209	init ();
147	}	210	}
148		211
		212	//static bool
		213	//is_true (const char *name)
		214	//{
		215	//re
		216	//}
		217
149	#define parse_bool(target,name,trueval,falseval) \	218	#define parse_bool(target,name,trueval,falseval) do { \
150	if (!strcmp (val, "yes")) target = trueval; \	219	if (!strcmp (val, "yes")) target = trueval; \
151	else if (!strcmp (val, "no")) target = falseval; \	220	else if (!strcmp (val, "no")) target = falseval; \
152	else if (!strcmp (val, "true")) target = trueval; \	221	else if (!strcmp (val, "true")) target = trueval; \
153	else if (!strcmp (val, "false")) target = falseval; \	222	else if (!strcmp (val, "false")) target = falseval; \
154	else if (!strcmp (val, "on")) target = trueval; \	223	else if (!strcmp (val, "on")) target = trueval; \
155	else if (!strcmp (val, "off")) target = falseval; \	224	else if (!strcmp (val, "off")) target = falseval; \
156	else \	225	else \
157	slog (L_WARN, \
158	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	226	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
159	name, var, fname, lineno);	227	} while (0)
160		228
161	void configuration::read_config (bool need_keys)	229	const char *
		230	configuration_parser::parse_line (char *line)
162	{	231	{
		232	{
		233	char *end = line + strlen (line);
		234
		235	while (*end < ' ' && end >= line)
		236	end--;
		237
		238	*++end = 0;
		239	}
		240
		241	char *tok = line;
		242	const char *var = strtok (tok, "\t =");
		243	tok = 0;
		244
		245	if (!var \|\| !var[0])
		246	return 0; /* no tokens on this line */
		247
		248	if (var[0] == '#')
		249	return 0; /* comment: ignore */
		250
		251	char *val = strtok (NULL, "\t\n\r =");
		252
		253	if (!val \|\| val[0] == '#')
		254	return _("no value given for variable, ignored");
		255
		256	else if (!strcmp (var, "on"))
		257	{
		258	if (::thisnode
		259	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		260	\|\| !strcmp (val, ::thisnode)))
		261	return parse_line (strtok (NULL, "\n\r"));
		262	}
		263
		264	else if (!strcmp (var, "include"))
		265	{
		266	char *fname = conf.config_filename (val);
		267	parse_file (fname);
		268	free (fname);
		269	}
		270
		271	// truly global
		272	else if (!strcmp (var, "loglevel"))
		273	{
		274	loglevel l = string_to_loglevel (val);
		275
		276	if (l == L_NONE)
		277	return _("unknown loglevel, ignored");
		278	}
		279	else if (!strcmp (var, "ip-proto"))
		280	conf.ip_proto = atoi (val);
		281	#if 1 //D2
		282	else if (!strcmp (var, "ip2-proto"))
		283	conf.ip2_proto = atoi (val);
		284	#endif
		285	else if (!strcmp (var, "icmp-type"))
		286	{
		287	#if ENABLE_ICMP
		288	conf.icmp_type = atoi (val);
		289	#endif
		290	}
		291
		292	// per config
		293	else if (!strcmp (var, "node"))
		294	{
		295	parse_argv ();
		296
		297	conf.default_node.id++;
		298	node = new conf_node (conf.default_node);
		299	conf.nodes.push_back (node);
		300	node->nodename = strdup (val);
		301
		302	{
163	char *fname;	303	char *fname;
164	FILE *f;	304	FILE *f;
165		305
166	clear_config ();	306	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
167		307
168	asprintf (&fname, "%s/vped.conf", confbase);
169	f = fopen (fname, "r");	308	f = fopen (fname, "r");
		309	if (f)
		310	{
		311	node->rsa_key = RSA_new ();
170		312
171	if (f)	313	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		314	{
		315	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		316	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		317	exit (EXIT_FAILURE);
		318	}
		319
		320	require (RSA_blinding_on (node->rsa_key, 0));
		321
		322	fclose (f);
		323	}
		324	else
		325	{
		326	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		327
		328	if (need_keys)
		329	exit (EXIT_FAILURE);
		330	}
		331
		332	free (fname);
		333	}
		334
		335	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		336	conf.thisnode = node;
172	{	337	}
		338	else if (!strcmp (var, "private-key"))
		339	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		340	else if (!strcmp (var, "ifpersist"))
		341	parse_bool (conf.ifpersist, "ifpersist", true, false);
		342	else if (!strcmp (var, "ifname"))
		343	free (conf.ifname), conf.ifname = strdup (val);
		344	else if (!strcmp (var, "rekey"))
		345	conf.rekey = atoi (val);
		346	else if (!strcmp (var, "keepalive"))
		347	conf.keepalive = atoi (val);
		348	else if (!strcmp (var, "mtu"))
		349	conf.mtu = atoi (val);
		350	else if (!strcmp (var, "nfmark"))
		351	conf.nfmark = atoi (val);
		352	else if (!strcmp (var, "if-up"))
		353	free (conf.script_if_up), conf.script_if_up = strdup (val);
		354	else if (!strcmp (var, "node-up"))
		355	free (conf.script_node_up), conf.script_node_up = strdup (val);
		356	else if (!strcmp (var, "node-change"))
		357	free (conf.script_node_change), conf.script_node_change = strdup (val);
		358	else if (!strcmp (var, "node-down"))
		359	free (conf.script_node_down), conf.script_node_down = strdup (val);
		360	else if (!strcmp (var, "pid-file"))
		361	free (conf.pidfilename), conf.pidfilename = strdup (val);
		362	else if (!strcmp (var, "dns-forw-host"))
		363	{
		364	#if ENABLE_DNS
		365	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-forw-port"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_forw_port = atoi (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-timeout-factor"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_timeout_factor = atof (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-send-interval"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_send_interval = atoi (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-overlap-factor"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_overlap_factor = atof (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-max-outstanding"))
		393	{
		394	#if ENABLE_DNS
		395	conf.dns_max_outstanding = atoi (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "dns-case-preserving"))
		399	{
		400	#if ENABLE_DNS
		401	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-host"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	free (conf.proxy_host), conf.proxy_host = strdup (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-port"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_port = atoi (val);
		414	#endif
		415	}
		416	else if (!strcmp (var, "http-proxy-auth"))
		417	{
		418	#if ENABLE_HTTP_PROXY
		419	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		420	#endif
		421	}
		422
		423	/* node-specific, non-defaultable */
		424	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		425	free (node->hostname), node->hostname = strdup (val);
		426
		427	/* node-specific, defaultable */
		428	else if (!strcmp (var, "udp-port"))
		429	node->udp_port = atoi (val);
		430	else if (!strcmp (var, "tcp-port"))
		431	node->tcp_port = atoi (val);
		432	else if (!strcmp (var, "dns-hostname"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->dns_hostname), node->dns_hostname = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-port"))
		439	{
		440	#if ENABLE_DNS
		441	node->dns_port = atoi (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "dns-domain"))
		445	{
		446	#if ENABLE_DNS
		447	free (node->domain), node->domain = strdup (val);
		448	#endif
		449	}
		450	else if (!strcmp (var, "if-up-data"))
		451	free (node->if_up_data), node->if_up_data = strdup (val);
		452	else if (!strcmp (var, "router-priority"))
		453	node->routerprio = atoi (val);
		454	else if (!strcmp (var, "max-retry"))
		455	node->max_retry = atoi (val);
		456	else if (!strcmp (var, "connect"))
		457	{
		458	if (!strcmp (val, "ondemand"))
		459	node->connectmode = conf_node::C_ONDEMAND;
		460	else if (!strcmp (val, "never"))
		461	node->connectmode = conf_node::C_NEVER;
		462	else if (!strcmp (val, "always"))
		463	node->connectmode = conf_node::C_ALWAYS;
		464	else if (!strcmp (val, "disabled"))
		465	node->connectmode = conf_node::C_DISABLED;
		466	else
		467	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		468	}
		469	else if (!strcmp (var, "inherit-tos"))
		470	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		471	else if (!strcmp (var, "compress"))
		472	parse_bool (node->compress, "compress", true, false);
		473	// all these bool options really really cost a lot of executable size!
		474	else if (!strcmp (var, "enable-tcp"))
		475	{
		476	#if ENABLE_TCP
		477	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-icmp"))
		481	{
		482	#if ENABLE_ICMP
		483	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-dns"))
		487	{
		488	#if ENABLE_DNS
		489	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		490	#endif
		491	}
		492	else if (!strcmp (var, "enable-udp"))
		493	{
		494	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		495	}
		496	else if (!strcmp (var, "enable-rawip"))
		497	{
		498	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		499	}
		500	#if 1//D2
		501	else if (!strcmp (var, "enable-rawip2"))
		502	{
		503	u8 v; parse_bool (v, "enable-rawip2", PROT_IPv42, 0); node->protocols = (node->protocols & ~PROT_IPv42 ) \| v;
		504	}
		505	#endif
		506	else if (!strcmp (var, "allow-direct"))
		507	node->allow_direct.push_back (strdup (val));
		508	else if (!strcmp (var, "deny-direct"))
		509	node->deny_direct.push_back (strdup (val));
		510	else if (!strcmp (var, "max-ttl"))
		511	node->max_ttl = atof (val);
		512	else if (!strcmp (var, "max-queue"))
		513	node->max_queue = atoi (val);
		514
		515	// unknown or misplaced
		516	else
		517	return _("unknown configuration directive - ignored");
		518
		519	return 0;
		520	}
		521
		522	void
		523	conf_node::finalise ()
		524	{
		525	if (max_queue < 1)
		526	{
		527	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		528	max_queue = 1;
		529	}
		530
		531	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		532	{
		533	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		534	connectmode = C_ALWAYS;
		535	}
		536	}
		537
		538	void
		539	configuration_parser::parse_argv ()
		540	{
		541	for (int i = 0; i < argc; ++i)
		542	{
		543	char *v = argv [i];
		544
		545	if (!*v)
		546	continue;
		547
		548	char *enode = v;
		549
		550	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		551	enode++;
		552
		553	if (*enode != '.')
		554	enode = 0;
		555
		556	char *wnode = node == &conf.default_node
		557	? 0
		558	: node->nodename;
		559
		560	if ((!wnode && !enode)
		561	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		562	{
		563	const char *warn = parse_line (enode ? enode + 1 : v);
		564
		565	if (warn)
		566	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		567
		568	*v = 0;
		569	}
		570	}
		571	}
		572
		573	void
		574	configuration_parser::parse_file (const char *fname)
		575	{
		576	if (FILE *f = fopen (fname, "r"))
		577	{
173	char line[16384];	578	char line [2048];
174	int lineno = 0;	579	int lineno = 0;
175	char var, val;
176	conf_node *node = &default_node;
177		580
178	while (fgets (line, sizeof (line), f))	581	while (fgets (line, sizeof (line), f))
179	{	582	{
180	lineno++;	583	lineno++;
181		584
182	{	585	const char *warn = parse_line (line);
183	char *end = line + strlen (line);
184		586
185	while (*end < ' ' && end >= line)	587	if (warn)
186	end--;	588	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
187
188	*++end = 0;
189	}
190
191	char *tok = line;
192
193	retry:
194	var = strtok (tok, "\t =");
195	tok = 0;
196
197	if (!var \|\| !var[0])
198	continue; /* no tokens on this line */
199
200	if (var[0] == '#')
201	continue; /* comment: ignore */
202
203	val = strtok (NULL, "\t\n\r =");
204
205	if (!val \|\| val[0] == '#')
206	{
207	slog (L_WARN,
208	_("no value for variable `%s', at '%s' line %d"),
209	var, fname, lineno);
210	break;
211	}
212
213	if (!strcmp (var, "on"))
214	{
215	if (!::thisnode
216	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
217	\|\| !strcmp (val, ::thisnode))
218	goto retry;
219
220	continue;
221	}
222
223	// truly global
224	if (!strcmp (var, "loglevel"))
225	{
226	loglevel l = string_to_loglevel (val);
227
228	if (l != L_NONE)
229	llevel = l;
230	else
231	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
232	}
233	else if (!strcmp (var, "ip-proto"))
234	ip_proto = atoi (val);
235	else if (!strcmp (var, "icmp-type"))
236	{
237	#if ENABLE_ICMP
238	icmp_type = atoi (val);
239	#endif
240	}
241
242	// per config
243	else if (!strcmp (var, "node"))
244	{
245	default_node.id++;
246
247	node = new conf_node (default_node);
248
249	nodes.push_back (node);
250
251	node->nodename = strdup (val);
252
253	{
254	char *fname;
255	FILE *f;
256
257	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
258
259	f = fopen (fname, "r");
260	if (f)
261	{
262	node->rsa_key = RSA_new ();
263
264	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
265	{
266	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
267	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
268	exit (EXIT_FAILURE);
269	}
270
271	require (RSA_blinding_on (node->rsa_key, 0));
272
273	fclose (f);
274	}
275	else
276	{
277	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
278
279	if (need_keys)
280	exit (EXIT_FAILURE);
281	}
282
283	free (fname);
284	}
285
286	if (::thisnode && !strcmp (node->nodename, ::thisnode))
287	thisnode = node;
288	}
289	else if (!strcmp (var, "private-key"))
290	free (prikeyfile), prikeyfile = strdup (val);
291	else if (!strcmp (var, "ifpersist"))
292	{
293	parse_bool (ifpersist, "ifpersist", true, false);
294	}
295	else if (!strcmp (var, "ifname"))
296	free (ifname), ifname = strdup (val);
297	else if (!strcmp (var, "rekey"))
298	rekey = atoi (val);
299	else if (!strcmp (var, "keepalive"))
300	keepalive = atoi (val);
301	else if (!strcmp (var, "mtu"))
302	mtu = atoi (val);
303	else if (!strcmp (var, "if-up"))
304	free (script_if_up), script_if_up = strdup (val);
305	else if (!strcmp (var, "node-up"))
306	free (script_node_up), script_node_up = strdup (val);
307	else if (!strcmp (var, "node-down"))
308	free (script_node_down), script_node_down = strdup (val);
309	else if (!strcmp (var, "pid-file"))
310	free (pidfilename), pidfilename = strdup (val);
311	else if (!strcmp (var, "http-proxy-host"))
312	{
313	#if ENABLE_HTTP_PROXY
314	free (proxy_host), proxy_host = strdup (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-port"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_port = atoi (val);
321	#endif
322	}
323	else if (!strcmp (var, "http-proxy-auth"))
324	{
325	#if ENABLE_HTTP_PROXY
326	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
327	#endif
328	}
329
330	/* node-specific, non-defaultable */
331	else if (node != &default_node && !strcmp (var, "hostname"))
332	free (node->hostname), node->hostname = strdup (val);
333
334	/* node-specific, defaultable */
335	else if (!strcmp (var, "udp-port"))
336	node->udp_port = atoi (val);
337	else if (!strcmp (var, "tcp-port"))
338	node->tcp_port = atoi (val);
339	else if (!strcmp (var, "dns-port"))
340	node->dns_port = atoi (val);
341	else if (!strcmp (var, "router-priority"))
342	node->routerprio = atoi (val);
343	else if (!strcmp (var, "connect"))
344	{
345	if (!strcmp (val, "ondemand"))
346	node->connectmode = conf_node::C_ONDEMAND;
347	else if (!strcmp (val, "never"))
348	node->connectmode = conf_node::C_NEVER;
349	else if (!strcmp (val, "always"))
350	node->connectmode = conf_node::C_ALWAYS;
351	else if (!strcmp (val, "disabled"))
352	node->connectmode = conf_node::C_DISABLED;
353	else
354	slog (L_WARN,
355	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
356	var, fname, lineno);
357	}
358	else if (!strcmp (var, "inherit-tos"))
359	{
360	parse_bool (node->inherit_tos, "inherit-tos", true, false);
361	}
362	else if (!strcmp (var, "compress"))
363	{
364	parse_bool (node->compress, "compress", true, false);
365	}
366	// all these bool options really really cost a lot of executable size!
367	else if (!strcmp (var, "enable-tcp"))
368	{
369	#if ENABLE_TCP
370	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
371	#endif
372	}
373	else if (!strcmp (var, "enable-icmp"))
374	{
375	#if ENABLE_ICMP
376	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
377	#endif
378	}
379	else if (!strcmp (var, "enable-dns"))
380	{
381	#if ENABLE_DNS
382	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
383	#endif
384	}
385	else if (!strcmp (var, "enable-udp"))
386	{
387	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
388	}
389	else if (!strcmp (var, "enable-rawip"))
390	{;
391	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
392	}
393
394	// unknown or misplaced
395	else
396	slog (L_WARN,
397	_("unknown or misplaced variable `%s', at '%s' line %d"),
398	var, fname, lineno);
399	}	589	}
400		590
401	fclose (f);	591	fclose (f);
		592
		593	parse_argv ();
402	}	594	}
403	else	595	else
404	{	596	{
405	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	597	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
406	exit (EXIT_FAILURE);	598	exit (EXIT_FAILURE);
407	}	599	}
		600	}
408		601
		602	configuration_parser::configuration_parser (configuration &conf,
		603	bool need_keys,
		604	int argc,
		605	char **argv)
		606	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		607	{
		608	char *fname;
		609
		610	conf.clear ();
		611	node = &conf.default_node;
		612
		613	asprintf (&fname, "%s/gvpe.conf", confbase);
		614	parse_file (fname);
409	free (fname);	615	free (fname);
410		616
411	fname = config_filename (prikeyfile, "hostkey");	617	fname = conf.config_filename (conf.prikeyfile, "hostkey");
412		618
413	f = fopen (fname, "r");	619	if (FILE *f = fopen (fname, "r"))
414	if (f)
415	{	620	{
416	rsa_key = RSA_new ();	621	conf.rsa_key = RSA_new ();
417		622
418	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	623	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
419	{	624	{
420	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	625	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
421	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	626	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
422	exit (EXIT_FAILURE);	627	exit (EXIT_FAILURE);
423	}	628	}
424		629
425	require (RSA_blinding_on (rsa_key, 0));	630	require (RSA_blinding_on (conf.rsa_key, 0));
426		631
427	fclose (f);	632	fclose (f);
428	}	633	}
429	else	634	else
430	{	635	{
…		…
432		637
433	if (need_keys)	638	if (need_keys)
434	exit (EXIT_FAILURE);	639	exit (EXIT_FAILURE);
435	}	640	}
436		641
		642	free (fname);
		643
437	if (need_keys && ::thisnode	644	if (need_keys && ::thisnode
438	&& rsa_key && thisnode && thisnode->rsa_key)	645	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
439	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	646	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
440	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	647	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
441	{	648	{
442	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	649	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
443	exit (EXIT_FAILURE);	650	exit (EXIT_FAILURE);
444	}	651	}
445		652
446	free (fname);	653	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		654	(*i)->finalise ();
447	}	655	}
448		656
		657	char *
449	char configuration::config_filename (const char name, const char *dflt)	658	configuration::config_filename (const char name, const char dflt)
450	{	659	{
451	char *fname;	660	char *fname;
452		661
453	asprintf (&fname, name ? name : dflt, ::thisnode);	662	asprintf (&fname, name ? name : dflt, ::thisnode);
454		663
…		…
458	asprintf (&fname, "%s/%s", confbase, rname);	667	asprintf (&fname, "%s/%s", confbase, rname);
459	free (rname);	668	free (rname);
460	}	669	}
461		670
462	return fname;	671	return fname;
		672	}
		673
		674	void
		675	conf_node::print ()
		676	{
		677	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		678	id,
		679	id >> 8, id & 0xff,
		680	compress ? 'Y' : 'N',
		681	connectmode == C_ONDEMAND ? "ondemand"
		682	: connectmode == C_NEVER ? "never"
		683	: connectmode == C_ALWAYS ? "always"
		684	: connectmode == C_DISABLED ? "disabled"
		685	: "",
		686	nodename,
		687	protocols,
		688	hostname ? hostname : "",
		689	hostname ? ":" : "",
		690	hostname ? udp_port : 0
		691	);
463	}	692	}
464		693
465	void	694	void
466	configuration::print ()	695	configuration::print ()
467	{	696	{
…		…
474	printf (_("interface: %s\n"), ifname);	703	printf (_("interface: %s\n"), ifname);
475	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	704	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
476	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	705	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
477	printf ("\n");	706	printf ("\n");
478		707
479	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	708	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
480	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	709	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
481		710
482	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	711	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
483	(*i)->print ();	712	(*i)->print ();
484		713
485	printf ("\n");	714	printf ("\n");
486	}	715	}
487		716
488	configuration::configuration ()	717	configuration::configuration ()
489	{	718	{
490	asprintf (&confbase, "%s/vpe", CONFDIR);	719	asprintf (&confbase, "%s/gvpe", CONFDIR);
491		720
492	init ();	721	init ();
493	}	722	}
494		723
495	configuration::~configuration ()	724	configuration::~configuration ()
496	{	725	{
497	cleanup ();	726	cleanup ();
498	}	727	}
499		728
500

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Comparing gvpe/src/conf.C (file contents): Revision 1.26 by pcg, Wed May 12 13:32:13 2004 UTC vs. Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.26 by pcg, Wed May 12 13:32:13 2004 UTC vs.
Revision 1.57 by root, Sat Dec 17 22:05:34 2011 UTC