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

Comparing gvpe/src/conf.C (file contents):
Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 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>
26	#include <errno.h>	38	#include <errno.h>
27	#include <netdb.h>	39	#include <netdb.h>
28	#include <sys/stat.h>	40	#include <sys/stat.h>
29	#include <sys/types.h>	41	#include <sys/types.h>
30	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
31		44
32	#include "netcompat.h"	45	#include "netcompat.h"
33		46
34	#include <openssl/err.h>	47	#include <openssl/err.h>
35	#include <openssl/pem.h>	48	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	50	#include <openssl/rand.h>
38	#include <openssl/bn.h>	51	#include <openssl/bn.h>
39		52
40	#include "gettext.h"
41
42	#include "conf.h"	53	#include "conf.h"
43	#include "slog.h"	54	#include "slog.h"
44	#include "util.h"	55	#include "util.h"
45		56
46	char *confbase;	57	char *confbase;
47	char *thisnode;	58	char *thisnode;
48	char *identname;	59	char *identname;
49		60
50	struct configuration conf;	61	struct configuration conf;
51		62
		63	u8
52	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
53	{	65	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		71
60	return 0;	72	return 0;
61	}	73	}
62		74
		75	const char *
63	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
64	{	77	{
65	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	82	if (protocol & PROT_DNSv4 ) return "dns";
70		83
71	return "<unknown>";	84	return "<unknown>";
72	}	85	}
73		86
74	void	87	static bool
75	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
76	{	89	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	91	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	92	return true;
80	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
82	connectmode == C_NEVER ? "never" :	95
83	connectmode == C_ALWAYS ? "always" : "",	96	return false;
84	nodename,	97	}
85	hostname ? hostname : "",	98
86	hostname ? ":" : "",	99	bool
87	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
88	);	101	{
		102	if (match_list (allow_direct, other->nodename))
		103	return true;
		104
		105	if (match_list (deny_direct, other->nodename))
		106	return false;
		107
		108	return true;
89	}	109	}
90		110
91	conf_node::~conf_node ()	111	conf_node::~conf_node ()
92	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
93	if (rsa_key)	116	if (rsa_key)
94	RSA_free (rsa_key);	117	RSA_free (rsa_key);
95		118
96	free (nodename);	119	free (nodename);
97	free (hostname);	120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
98	}	127	}
99		128
		129	void
100	void configuration::init ()	130	configuration::init ()
101	{	131	{
102	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
103		133
104	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
105	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	138	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
109	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
112		143
113	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	147	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
118	}	149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
119		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
		166	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	}
		168
		169	void
120	void configuration::cleanup()	170	configuration::cleanup ()
121	{	171	{
122	if (rsa_key)	172	if (rsa_key)
123	RSA_free (rsa_key);	173	RSA_free (rsa_key);
124		174
125	rsa_key = 0;	175	rsa_key = 0;
126		176
127	free (pidfilename); pidfilename = 0;	177	free (pidfilename); pidfilename = 0;
128	free (ifname); ifname = 0;	178	free (ifname); ifname = 0;
129	#if ENABLE_HTTP_PROXY	179	#if ENABLE_HTTP_PROXY
130	free (proxy_host); proxy_host = 0;	180	free (proxy_host); proxy_host = 0;
131	free (proxy_auth); proxy_auth = 0;	181	free (proxy_auth); proxy_auth = 0;
132	#endif	182	#endif
		183	#if ENABLE_DNS
		184	free (dns_forw_host); dns_forw_host = 0;
		185	#endif
		186	free (change_root); change_root = 0;
		187	free (script_if_up); script_if_up = 0;
		188	free (script_node_up); script_node_up = 0;
		189	free (script_node_change); script_node_change = 0;
		190	free (script_node_down); script_node_down = 0;
133	}	191	}
134		192
135	void	193	void
136	configuration::clear_config ()	194	configuration::clear ()
137	{	195	{
138	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	196	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
139	delete *i;	197	delete *i;
140		198
141	nodes.clear ();	199	nodes.clear ();
142		200
143	cleanup ();	201	cleanup ();
144	init ();	202	init ();
145	}	203	}
146		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
147	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
148	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
149	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
150	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
151	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
152	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
153	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
154	else \	218	else \
155	slog (L_WARN, \
156	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	219	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
157	name, var, fname, lineno);	220	} while (0)
158		221
159	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
160	{	224	{
		225	{
		226	char *end = line + strlen (line);
		227
		228	while (*end < ' ' && end >= line)
		229	end--;
		230
		231	*++end = 0;
		232	}
		233
		234	char *tok = line;
		235	const char *var = strtok (tok, "\t =");
		236	tok = 0;
		237
		238	if (!var \|\| !var[0])
		239	return 0; /* no tokens on this line */
		240
		241	if (var[0] == '#')
		242	return 0; /* comment: ignore */
		243
		244	char *val = strtok (NULL, "\t\n\r =");
		245
		246	if (!val \|\| val[0] == '#')
		247	return _("no value given for variable, ignored");
		248
		249	else if (!strcmp (var, "on"))
		250	{
		251	if (::thisnode
		252	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		253	\|\| !strcmp (val, ::thisnode)))
		254	return parse_line (strtok (NULL, "\n\r"));
		255	}
		256
		257	else if (!strcmp (var, "include"))
		258	{
		259	char *fname = conf.config_filename (val);
		260	parse_file (fname);
		261	free (fname);
		262	}
		263
		264	// truly global
		265	else if (!strcmp (var, "loglevel"))
		266	{
		267	loglevel l = string_to_loglevel (val);
		268
		269	if (l == L_NONE)
		270	return _("unknown loglevel, ignored");
		271	}
		272	else if (!strcmp (var, "ip-proto"))
		273	conf.ip_proto = atoi (val);
		274	else if (!strcmp (var, "icmp-type"))
		275	{
		276	#if ENABLE_ICMP
		277	conf.icmp_type = atoi (val);
		278	#endif
		279	}
		280	else if (!strcmp (var, "chuser"))
		281	{
		282	struct passwd *pw = getpwnam (val);
		283	if (!pw)
		284	return _("user specified for chuser not found");
		285
		286	conf.change_uid = pw->pw_uid;
		287	conf.change_gid = pw->pw_gid;
		288	}
		289	else if (!strcmp (var, "chuid"))
		290	conf.change_uid = atoi (val);
		291	else if (!strcmp (var, "chgid"))
		292	conf.change_gid = atoi (val);
		293	else if (!strcmp (var, "chroot"))
		294	free (conf.change_root), conf.change_root = strdup (val);
		295
		296	// per node
		297	else if (!strcmp (var, "node"))
		298	{
		299	parse_argv ();
		300
		301	conf.default_node.id++;
		302	node = new conf_node (conf.default_node);
		303	conf.nodes.push_back (node);
		304	node->nodename = strdup (val);
		305
		306	{
161	char *fname;	307	char *fname;
162	FILE *f;	308	FILE *f;
163		309
164	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
165		311
166	asprintf (&fname, "%s/vped.conf", confbase);
167	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
168		316
169	if (f)	317	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		318	{
		319	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		320	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		321	exit (EXIT_FAILURE);
		322	}
		323
		324	require (RSA_blinding_on (node->rsa_key, 0));
		325
		326	fclose (f);
		327	}
		328	else
		329	{
		330	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		331
		332	if (need_keys)
		333	exit (EXIT_FAILURE);
		334	}
		335
		336	free (fname);
		337	}
		338
		339	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		340	conf.thisnode = node;
170	{	341	}
		342	else if (!strcmp (var, "private-key"))
		343	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		344	else if (!strcmp (var, "ifpersist"))
		345	parse_bool (conf.ifpersist, "ifpersist", true, false);
		346	else if (!strcmp (var, "ifname"))
		347	free (conf.ifname), conf.ifname = strdup (val);
		348	else if (!strcmp (var, "rekey"))
		349	conf.rekey = atoi (val);
		350	else if (!strcmp (var, "keepalive"))
		351	conf.keepalive = atoi (val);
		352	else if (!strcmp (var, "mtu"))
		353	conf.mtu = atoi (val);
		354	else if (!strcmp (var, "nfmark"))
		355	conf.nfmark = atoi (val);
		356	else if (!strcmp (var, "if-up"))
		357	free (conf.script_if_up), conf.script_if_up = strdup (val);
		358	else if (!strcmp (var, "node-up"))
		359	free (conf.script_node_up), conf.script_node_up = strdup (val);
		360	else if (!strcmp (var, "node-change"))
		361	free (conf.script_node_change), conf.script_node_change = strdup (val);
		362	else if (!strcmp (var, "node-down"))
		363	free (conf.script_node_down), conf.script_node_down = strdup (val);
		364	else if (!strcmp (var, "pid-file"))
		365	free (conf.pidfilename), conf.pidfilename = strdup (val);
		366	else if (!strcmp (var, "dns-forw-host"))
		367	{
		368	#if ENABLE_DNS
		369	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		370	#endif
		371	}
		372	else if (!strcmp (var, "dns-forw-port"))
		373	{
		374	#if ENABLE_DNS
		375	conf.dns_forw_port = atoi (val);
		376	#endif
		377	}
		378	else if (!strcmp (var, "dns-timeout-factor"))
		379	{
		380	#if ENABLE_DNS
		381	conf.dns_timeout_factor = atof (val);
		382	#endif
		383	}
		384	else if (!strcmp (var, "dns-send-interval"))
		385	{
		386	#if ENABLE_DNS
		387	conf.dns_send_interval = atoi (val);
		388	#endif
		389	}
		390	else if (!strcmp (var, "dns-overlap-factor"))
		391	{
		392	#if ENABLE_DNS
		393	conf.dns_overlap_factor = atof (val);
		394	#endif
		395	}
		396	else if (!strcmp (var, "dns-max-outstanding"))
		397	{
		398	#if ENABLE_DNS
		399	conf.dns_max_outstanding = atoi (val);
		400	#endif
		401	}
		402	else if (!strcmp (var, "dns-case-preserving"))
		403	{
		404	#if ENABLE_DNS
		405	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		406	#endif
		407	}
		408	else if (!strcmp (var, "http-proxy-host"))
		409	{
		410	#if ENABLE_HTTP_PROXY
		411	free (conf.proxy_host), conf.proxy_host = strdup (val);
		412	#endif
		413	}
		414	else if (!strcmp (var, "http-proxy-port"))
		415	{
		416	#if ENABLE_HTTP_PROXY
		417	conf.proxy_port = atoi (val);
		418	#endif
		419	}
		420	else if (!strcmp (var, "http-proxy-auth"))
		421	{
		422	#if ENABLE_HTTP_PROXY
		423	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		424	#endif
		425	}
		426
		427	/* node-specific, non-defaultable */
		428	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		429	free (node->hostname), node->hostname = strdup (val);
		430
		431	/* node-specific, defaultable */
		432	else if (!strcmp (var, "udp-port"))
		433	node->udp_port = atoi (val);
		434	else if (!strcmp (var, "tcp-port"))
		435	node->tcp_port = atoi (val);
		436	else if (!strcmp (var, "dns-hostname"))
		437	{
		438	#if ENABLE_DNS
		439	free (node->dns_hostname), node->dns_hostname = strdup (val);
		440	#endif
		441	}
		442	else if (!strcmp (var, "dns-port"))
		443	{
		444	#if ENABLE_DNS
		445	node->dns_port = atoi (val);
		446	#endif
		447	}
		448	else if (!strcmp (var, "dns-domain"))
		449	{
		450	#if ENABLE_DNS
		451	free (node->domain), node->domain = strdup (val);
		452	#endif
		453	}
		454	else if (!strcmp (var, "if-up-data"))
		455	free (node->if_up_data), node->if_up_data = strdup (val);
		456	else if (!strcmp (var, "router-priority"))
		457	node->routerprio = atoi (val);
		458	else if (!strcmp (var, "max-retry"))
		459	node->max_retry = atoi (val);
		460	else if (!strcmp (var, "connect"))
		461	{
		462	if (!strcmp (val, "ondemand"))
		463	node->connectmode = conf_node::C_ONDEMAND;
		464	else if (!strcmp (val, "never"))
		465	node->connectmode = conf_node::C_NEVER;
		466	else if (!strcmp (val, "always"))
		467	node->connectmode = conf_node::C_ALWAYS;
		468	else if (!strcmp (val, "disabled"))
		469	node->connectmode = conf_node::C_DISABLED;
		470	else
		471	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		472	}
		473	else if (!strcmp (var, "inherit-tos"))
		474	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		475	else if (!strcmp (var, "compress"))
		476	parse_bool (node->compress, "compress", true, false);
		477	// all these bool options really really cost a lot of executable size!
		478	else if (!strcmp (var, "enable-tcp"))
		479	{
		480	#if ENABLE_TCP
		481	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		482	#endif
		483	}
		484	else if (!strcmp (var, "enable-icmp"))
		485	{
		486	#if ENABLE_ICMP
		487	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		488	#endif
		489	}
		490	else if (!strcmp (var, "enable-dns"))
		491	{
		492	#if ENABLE_DNS
		493	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		494	#endif
		495	}
		496	else if (!strcmp (var, "enable-udp"))
		497	{
		498	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		499	}
		500	else if (!strcmp (var, "enable-rawip"))
		501	{
		502	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		503	}
		504	else if (!strcmp (var, "allow-direct"))
		505	node->allow_direct.push_back (strdup (val));
		506	else if (!strcmp (var, "deny-direct"))
		507	node->deny_direct.push_back (strdup (val));
		508	else if (!strcmp (var, "max-ttl"))
		509	node->max_ttl = atof (val);
		510	else if (!strcmp (var, "max-queue"))
		511	node->max_queue = atoi (val);
		512
		513	// unknown or misplaced
		514	else
		515	return _("unknown configuration directive - ignored");
		516
		517	return 0;
		518	}
		519
		520	void
		521	conf_node::finalise ()
		522	{
		523	if (max_queue < 1)
		524	{
		525	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		526	max_queue = 1;
		527	}
		528
		529	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		530	{
		531	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		532	connectmode = C_ALWAYS;
		533	}
		534	}
		535
		536	void
		537	configuration_parser::parse_argv ()
		538	{
		539	for (int i = 0; i < argc; ++i)
		540	{
		541	char *v = argv [i];
		542
		543	if (!*v)
		544	continue;
		545
		546	char *enode = v;
		547
		548	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		549	enode++;
		550
		551	if (*enode != '.')
		552	enode = 0;
		553
		554	char *wnode = node == &conf.default_node
		555	? 0
		556	: node->nodename;
		557
		558	if ((!wnode && !enode)
		559	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		560	{
		561	const char *warn = parse_line (enode ? enode + 1 : v);
		562
		563	if (warn)
		564	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		565
		566	*v = 0;
		567	}
		568	}
		569	}
		570
		571	void
		572	configuration_parser::parse_file (const char *fname)
		573	{
		574	if (FILE *f = fopen (fname, "r"))
		575	{
171	char line[16384];	576	char line [2048];
172	int lineno = 0;	577	int lineno = 0;
173	char var, val;
174	conf_node *node = &default_node;
175		578
176	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
177	{	580	{
178	lineno++;	581	lineno++;
179		582
180	{	583	const char *warn = parse_line (line);
181	char *end = line + strlen (line);
182		584
183	while (*end < ' ' && end >= line)	585	if (warn)
184	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
185
186	*++end = 0;
187	}
188
189	char *tok = line;
190
191	retry:
192	var = strtok (tok, "\t =");
193	tok = 0;
194
195	if (!var \|\| !var[0])
196	continue; /* no tokens on this line */
197
198	if (var[0] == '#')
199	continue; /* comment: ignore */
200
201	val = strtok (NULL, "\t\n\r =");
202
203	if (!val \|\| val[0] == '#')
204	{
205	slog (L_WARN,
206	_("no value for variable `%s', at '%s' line %d"),
207	var, fname, lineno);
208	break;
209	}
210
211	if (!strcmp (var, "on"))
212	{
213	if (!::thisnode
214	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
215	\|\| !strcmp (val, ::thisnode))
216	goto retry;
217
218	continue;
219	}
220
221	// truly global
222	if (!strcmp (var, "loglevel"))
223	{
224	loglevel l = string_to_loglevel (val);
225
226	if (l != L_NONE)
227	llevel = l;
228	else
229	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
230	}
231	else if (!strcmp (var, "ip-proto"))
232	ip_proto = atoi (val);
233	else if (!strcmp (var, "icmp-type"))
234	{
235	#if ENABLE_ICMP
236	icmp_type = atoi (val);
237	#endif
238	}
239
240	// per config
241	else if (!strcmp (var, "node"))
242	{
243	default_node.id++;
244
245	node = new conf_node (default_node);
246
247	nodes.push_back (node);
248
249	node->nodename = strdup (val);
250
251	{
252	char *fname;
253	FILE *f;
254
255	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
256
257	f = fopen (fname, "r");
258	if (f)
259	{
260	node->rsa_key = RSA_new ();
261
262	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
263	{
264	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
265	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
266	exit (EXIT_FAILURE);
267	}
268
269	require (RSA_blinding_on (node->rsa_key, 0));
270
271	fclose (f);
272	}
273	else
274	{
275	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
276
277	if (need_keys)
278	exit (EXIT_FAILURE);
279	}
280
281	free (fname);
282	}
283
284	if (::thisnode && !strcmp (node->nodename, ::thisnode))
285	thisnode = node;
286	}
287	else if (!strcmp (var, "private-key"))
288	free (prikeyfile), prikeyfile = strdup (val);
289	else if (!strcmp (var, "ifpersist"))
290	{
291	parse_bool (ifpersist, "ifpersist", true, false);
292	}
293	else if (!strcmp (var, "ifname"))
294	free (ifname), ifname = strdup (val);
295	else if (!strcmp (var, "rekey"))
296	rekey = atoi (val);
297	else if (!strcmp (var, "keepalive"))
298	keepalive = atoi (val);
299	else if (!strcmp (var, "mtu"))
300	mtu = atoi (val);
301	else if (!strcmp (var, "if-up"))
302	free (script_if_up), script_if_up = strdup (val);
303	else if (!strcmp (var, "node-up"))
304	free (script_node_up), script_node_up = strdup (val);
305	else if (!strcmp (var, "node-down"))
306	free (script_node_down), script_node_down = strdup (val);
307	else if (!strcmp (var, "pid-file"))
308	free (pidfilename), pidfilename = strdup (val);
309	else if (!strcmp (var, "http-proxy-host"))
310	{
311	#if ENABLE_HTTP_PROXY
312	free (proxy_host), proxy_host = strdup (val);
313	#endif
314	}
315	else if (!strcmp (var, "http-proxy-port"))
316	{
317	#if ENABLE_HTTP_PROXY
318	proxy_port = atoi (val);
319	#endif
320	}
321	else if (!strcmp (var, "http-proxy-auth"))
322	{
323	#if ENABLE_HTTP_PROXY
324	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
325	#endif
326	}
327
328	/* node-specific, non-defaultable */
329	else if (node != &default_node && !strcmp (var, "hostname"))
330	free (node->hostname), node->hostname = strdup (val);
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "dns-port"))
338	node->dns_port = atoi (val);
339	else if (!strcmp (var, "router-priority"))
340	node->routerprio = atoi (val);
341	else if (!strcmp (var, "connect"))
342	{
343	if (!strcmp (val, "ondemand"))
344	node->connectmode = conf_node::C_ONDEMAND;
345	else if (!strcmp (val, "never"))
346	node->connectmode = conf_node::C_NEVER;
347	else if (!strcmp (val, "always"))
348	node->connectmode = conf_node::C_ALWAYS;
349	else if (!strcmp (val, "disabled"))
350	node->connectmode = conf_node::C_DISABLED;
351	else
352	slog (L_WARN,
353	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
354	var, fname, lineno);
355	}
356	else if (!strcmp (var, "inherit-tos"))
357	{
358	parse_bool (node->inherit_tos, "inherit-tos", true, false);
359	}
360	else if (!strcmp (var, "compress"))
361	{
362	parse_bool (node->compress, "compress", true, false);
363	}
364	// all these bool options really really cost a lot of executable size!
365	else if (!strcmp (var, "enable-tcp"))
366	{
367	#if ENABLE_TCP
368	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
369	#endif
370	}
371	else if (!strcmp (var, "enable-icmp"))
372	{
373	#if ENABLE_ICMP
374	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
375	#endif
376	}
377	else if (!strcmp (var, "enable-dns"))
378	{
379	#if ENABLE_DNS
380	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
381	#endif
382	}
383	else if (!strcmp (var, "enable-udp"))
384	{
385	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
386	}
387	else if (!strcmp (var, "enable-rawip"))
388	{;
389	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
390	}
391
392	// unknown or misplaced
393	else
394	slog (L_WARN,
395	_("unknown or misplaced variable `%s', at '%s' line %d"),
396	var, fname, lineno);
397	}	587	}
398		588
399	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
400	}	592	}
401	else	593	else
402	{	594	{
403	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	595	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
404	exit (EXIT_FAILURE);	596	exit (EXIT_FAILURE);
405	}	597	}
		598	}
406		599
		600	configuration_parser::configuration_parser (configuration &conf,
		601	bool need_keys,
		602	int argc,
		603	char **argv)
		604	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		605	{
		606	char *fname;
		607
		608	conf.clear ();
		609	node = &conf.default_node;
		610
		611	asprintf (&fname, "%s/gvpe.conf", confbase);
		612	parse_file (fname);
407	free (fname);	613	free (fname);
408		614
409	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
410		616
411	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
412	if (f)
413	{	618	{
414	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
415		620
416	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
417	{	622	{
418	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
419	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	624	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
420	exit (EXIT_FAILURE);	625	exit (EXIT_FAILURE);
421	}	626	}
422		627
423	require (RSA_blinding_on (rsa_key, 0));	628	require (RSA_blinding_on (conf.rsa_key, 0));
424		629
425	fclose (f);	630	fclose (f);
426	}	631	}
427	else	632	else
428	{	633	{
…		…
430		635
431	if (need_keys)	636	if (need_keys)
432	exit (EXIT_FAILURE);	637	exit (EXIT_FAILURE);
433	}	638	}
434		639
		640	free (fname);
		641
435	if (need_keys && ::thisnode	642	if (need_keys && ::thisnode
436	&& rsa_key && thisnode && thisnode->rsa_key)	643	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
437	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	644	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
438	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	645	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
439	{	646	{
440	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	647	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
441	exit (EXIT_FAILURE);	648	exit (EXIT_FAILURE);
442	}	649	}
443		650
444	free (fname);	651	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		652	(*i)->finalise ();
445	}	653	}
446		654
		655	char *
447	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
448	{	657	{
449	char *fname;	658	char *fname;
450		659
451	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
452		661
…		…
456	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
457	free (rname);	666	free (rname);
458	}	667	}
459		668
460	return fname;	669	return fname;
		670	}
		671
		672	void
		673	conf_node::print ()
		674	{
		675	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		676	id,
		677	id >> 8, id & 0xff,
		678	compress ? 'Y' : 'N',
		679	connectmode == C_ONDEMAND ? "ondemand"
		680	: connectmode == C_NEVER ? "never"
		681	: connectmode == C_ALWAYS ? "always"
		682	: connectmode == C_DISABLED ? "disabled"
		683	: "",
		684	nodename,
		685	protocols,
		686	hostname ? hostname : "",
		687	hostname ? ":" : "",
		688	hostname ? udp_port : 0
		689	);
461	}	690	}
462		691
463	void	692	void
464	configuration::print ()	693	configuration::print ()
465	{	694	{
…		…
472	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
473	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
474	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	703	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
475	printf ("\n");	704	printf ("\n");
476		705
477	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
478	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
479		708
480	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
481	(*i)->print ();	710	(*i)->print ();
482		711
483	printf ("\n");	712	printf ("\n");
484	}	713	}
485		714
486	configuration::configuration ()	715	configuration::configuration ()
487	{	716	{
		717	asprintf (&confbase, "%s/gvpe", CONFDIR);
		718
488	init ();	719	init ();
489	}	720	}
490		721
491	configuration::~configuration ()	722	configuration::~configuration ()
492	{	723	{
493	cleanup ();	724	cleanup ();
494	}	725	}
495		726
496

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Comparing gvpe/src/conf.C (file contents): Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs. Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.24 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC