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

Comparing gvpe/src/conf.C (file contents):
Revision 1.28 by pcg, Tue Mar 1 04:38:21 2005 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
98	free (domain);	123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
99	}	127	}
100		128
		129	void
101	void configuration::init ()	130	configuration::init ()
102	{	131	{
103	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
104		133
105	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
106	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
107	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
108	llevel = L_INFO;	138	llevel = L_INFO;
109	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
110	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
113		143
114	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
115	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
117	default_node.compress = true;	147	default_node.compress = true;
118	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
119	default_node.max_retry = DEFAULT_MAX_RETRY;	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 ("");
		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
120		165
121	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
122	}	167	}
123		168
		169	void
124	void configuration::cleanup()	170	configuration::cleanup ()
125	{	171	{
126	if (rsa_key)	172	if (rsa_key)
127	RSA_free (rsa_key);	173	RSA_free (rsa_key);
128		174
129	rsa_key = 0;	175	rsa_key = 0;
130		176
131	free (pidfilename); pidfilename = 0;	177	free (pidfilename); pidfilename = 0;
132	free (ifname); ifname = 0;	178	free (ifname); ifname = 0;
133	#if ENABLE_HTTP_PROXY	179	#if ENABLE_HTTP_PROXY
134	free (proxy_host); proxy_host = 0;	180	free (proxy_host); proxy_host = 0;
135	free (proxy_auth); proxy_auth = 0;	181	free (proxy_auth); proxy_auth = 0;
136	#endif	182	#endif
137	#if ENABLE_DNS	183	#if ENABLE_DNS
138	free (dns_forw_host); dns_forw_host = 0;	184	free (dns_forw_host); dns_forw_host = 0;
139	#endif	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;
140	}	191	}
141		192
142	void	193	void
143	configuration::clear_config ()	194	configuration::clear ()
144	{	195	{
145	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)
146	delete *i;	197	delete *i;
147		198
148	nodes.clear ();	199	nodes.clear ();
149		200
150	cleanup ();	201	cleanup ();
151	init ();	202	init ();
152	}	203	}
153		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
154	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
155	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
156	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
157	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
158	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
159	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
160	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
161	else \	218	else \
162	slog (L_WARN, \
163	_("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"); \
164	name, var, fname, lineno);	220	} while (0)
165		221
166	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
167	{	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	{
168	char *fname;	307	char *fname;
169	FILE *f;	308	FILE *f;
170		309
171	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
172		311
173	asprintf (&fname, "%s/gvpe.conf", confbase);
174	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
175		316
176	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;
177	{	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	{
178	char line[16384];	576	char line [2048];
179	int lineno = 0;	577	int lineno = 0;
180	char var, val;
181	conf_node *node = &default_node;
182		578
183	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
184	{	580	{
185	lineno++;	581	lineno++;
186		582
187	{	583	const char *warn = parse_line (line);
188	char *end = line + strlen (line);
189		584
190	while (*end < ' ' && end >= line)	585	if (warn)
191	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
192
193	*++end = 0;
194	}
195
196	char *tok = line;
197
198	retry:
199	var = strtok (tok, "\t =");
200	tok = 0;
201
202	if (!var \|\| !var[0])
203	continue; /* no tokens on this line */
204
205	if (var[0] == '#')
206	continue; /* comment: ignore */
207
208	val = strtok (NULL, "\t\n\r =");
209
210	if (!val \|\| val[0] == '#')
211	{
212	slog (L_WARN,
213	_("no value for variable `%s', at '%s' line %d"),
214	var, fname, lineno);
215	break;
216	}
217
218	if (!strcmp (var, "on"))
219	{
220	if (!::thisnode
221	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
222	\|\| !strcmp (val, ::thisnode))
223	goto retry;
224
225	continue;
226	}
227
228	// truly global
229	if (!strcmp (var, "loglevel"))
230	{
231	loglevel l = string_to_loglevel (val);
232
233	if (l != L_NONE)
234	llevel = l;
235	else
236	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
237	}
238	else if (!strcmp (var, "ip-proto"))
239	ip_proto = atoi (val);
240	else if (!strcmp (var, "icmp-type"))
241	{
242	#if ENABLE_ICMP
243	icmp_type = atoi (val);
244	#endif
245	}
246
247	// per config
248	else if (!strcmp (var, "node"))
249	{
250	default_node.id++;
251
252	node = new conf_node (default_node);
253
254	nodes.push_back (node);
255
256	node->nodename = strdup (val);
257
258	{
259	char *fname;
260	FILE *f;
261
262	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
263
264	f = fopen (fname, "r");
265	if (f)
266	{
267	node->rsa_key = RSA_new ();
268
269	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
270	{
271	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
272	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
273	exit (EXIT_FAILURE);
274	}
275
276	require (RSA_blinding_on (node->rsa_key, 0));
277
278	fclose (f);
279	}
280	else
281	{
282	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
283
284	if (need_keys)
285	exit (EXIT_FAILURE);
286	}
287
288	free (fname);
289	}
290
291	if (::thisnode && !strcmp (node->nodename, ::thisnode))
292	thisnode = node;
293	}
294	else if (!strcmp (var, "private-key"))
295	free (prikeyfile), prikeyfile = strdup (val);
296	else if (!strcmp (var, "ifpersist"))
297	{
298	parse_bool (ifpersist, "ifpersist", true, false);
299	}
300	else if (!strcmp (var, "ifname"))
301	free (ifname), ifname = strdup (val);
302	else if (!strcmp (var, "rekey"))
303	rekey = atoi (val);
304	else if (!strcmp (var, "keepalive"))
305	keepalive = atoi (val);
306	else if (!strcmp (var, "mtu"))
307	mtu = atoi (val);
308	else if (!strcmp (var, "if-up"))
309	free (script_if_up), script_if_up = strdup (val);
310	else if (!strcmp (var, "node-up"))
311	free (script_node_up), script_node_up = strdup (val);
312	else if (!strcmp (var, "node-down"))
313	free (script_node_down), script_node_down = strdup (val);
314	else if (!strcmp (var, "pid-file"))
315	free (pidfilename), pidfilename = strdup (val);
316	else if (!strcmp (var, "dns-forwarder-host"))
317	{
318	#if ENABLE_DNS
319	free (dns_forw_host), dns_forw_host = strdup (val);
320	#endif
321	}
322	else if (!strcmp (var, "dns-forwarder-port"))
323	{
324	#if ENABLE_DNS
325	dns_forw_port = atoi (val);
326	#endif
327	}
328	else if (!strcmp (var, "http-proxy-host"))
329	{
330	#if ENABLE_HTTP_PROXY
331	free (proxy_host), proxy_host = strdup (val);
332	#endif
333	}
334	else if (!strcmp (var, "http-proxy-port"))
335	{
336	#if ENABLE_HTTP_PROXY
337	proxy_port = atoi (val);
338	#endif
339	}
340	else if (!strcmp (var, "http-proxy-auth"))
341	{
342	#if ENABLE_HTTP_PROXY
343	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
344	#endif
345	}
346
347	/* node-specific, non-defaultable */
348	else if (node != &default_node && !strcmp (var, "hostname"))
349	free (node->hostname), node->hostname = strdup (val);
350
351	/* node-specific, defaultable */
352	else if (!strcmp (var, "udp-port"))
353	node->udp_port = atoi (val);
354	else if (!strcmp (var, "tcp-port"))
355	node->tcp_port = atoi (val);
356	else if (!strcmp (var, "dns-port"))
357	{
358	#if ENABLE_DNS
359	node->dns_port = atoi (val);
360	#endif
361	}
362	else if (!strcmp (var, "dns-domain"))
363	{
364	#if ENABLE_DNS
365	free (node->domain), node->domain = strdup (val);
366	#endif
367	}
368	else if (!strcmp (var, "router-priority"))
369	node->routerprio = atoi (val);
370	else if (!strcmp (var, "max-retry"))
371	node->max_retry = atoi (val);
372	else if (!strcmp (var, "connect"))
373	{
374	if (!strcmp (val, "ondemand"))
375	node->connectmode = conf_node::C_ONDEMAND;
376	else if (!strcmp (val, "never"))
377	node->connectmode = conf_node::C_NEVER;
378	else if (!strcmp (val, "always"))
379	node->connectmode = conf_node::C_ALWAYS;
380	else if (!strcmp (val, "disabled"))
381	node->connectmode = conf_node::C_DISABLED;
382	else
383	slog (L_WARN,
384	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
385	var, fname, lineno);
386	}
387	else if (!strcmp (var, "inherit-tos"))
388	{
389	parse_bool (node->inherit_tos, "inherit-tos", true, false);
390	}
391	else if (!strcmp (var, "compress"))
392	{
393	parse_bool (node->compress, "compress", true, false);
394	}
395	// all these bool options really really cost a lot of executable size!
396	else if (!strcmp (var, "enable-tcp"))
397	{
398	#if ENABLE_TCP
399	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
400	#endif
401	}
402	else if (!strcmp (var, "enable-icmp"))
403	{
404	#if ENABLE_ICMP
405	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
406	#endif
407	}
408	else if (!strcmp (var, "enable-dns"))
409	{
410	#if ENABLE_DNS
411	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
412	#endif
413	}
414	else if (!strcmp (var, "enable-udp"))
415	{
416	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
417	}
418	else if (!strcmp (var, "enable-rawip"))
419	{
420	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
421	}
422
423	// unknown or misplaced
424	else
425	slog (L_WARN,
426	_("unknown or misplaced variable `%s', at '%s' line %d"),
427	var, fname, lineno);
428	}	587	}
429		588
430	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
431	}	592	}
432	else	593	else
433	{	594	{
434	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));
435	exit (EXIT_FAILURE);	596	exit (EXIT_FAILURE);
436	}	597	}
		598	}
437		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);
438	free (fname);	613	free (fname);
439		614
440	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
441		616
442	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
443	if (f)
444	{	618	{
445	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
446		620
447	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
448	{	622	{
449	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
450	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));
451	exit (EXIT_FAILURE);	625	exit (EXIT_FAILURE);
452	}	626	}
453		627
454	require (RSA_blinding_on (rsa_key, 0));	628	require (RSA_blinding_on (conf.rsa_key, 0));
455		629
456	fclose (f);	630	fclose (f);
457	}	631	}
458	else	632	else
459	{	633	{
…		…
461		635
462	if (need_keys)	636	if (need_keys)
463	exit (EXIT_FAILURE);	637	exit (EXIT_FAILURE);
464	}	638	}
465		639
		640	free (fname);
		641
466	if (need_keys && ::thisnode	642	if (need_keys && ::thisnode
467	&& rsa_key && thisnode && thisnode->rsa_key)	643	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
468	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
469	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	645	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
470	{	646	{
471	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);
472	exit (EXIT_FAILURE);	648	exit (EXIT_FAILURE);
473	}	649	}
474		650
475	free (fname);	651	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		652	(*i)->finalise ();
476	}	653	}
477		654
		655	char *
478	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
479	{	657	{
480	char *fname;	658	char *fname;
481		659
482	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
483		661
…		…
487	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
488	free (rname);	666	free (rname);
489	}	667	}
490		668
491	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	);
492	}	690	}
493		691
494	void	692	void
495	configuration::print ()	693	configuration::print ()
496	{	694	{
…		…
503	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
504	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
505	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);
506	printf ("\n");	704	printf ("\n");
507		705
508	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
509	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
510		708
511	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
512	(*i)->print ();	710	(*i)->print ();
513		711
514	printf ("\n");	712	printf ("\n");
…		…
524	configuration::~configuration ()	722	configuration::~configuration ()
525	{	723	{
526	cleanup ();	724	cleanup ();
527	}	725	}
528		726
529

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Comparing gvpe/src/conf.C (file contents): Revision 1.28 by pcg, Tue Mar 1 04:38:21 2005 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 1.28 by pcg, Tue Mar 1 04:38:21 2005 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC