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

Comparing gvpe/src/conf.C (file contents):
Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 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 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		51	#include <openssl/bn.h>
39	#include "gettext.h"
40		52
41	#include "conf.h"	53	#include "conf.h"
42	#include "slog.h"	54	#include "slog.h"
43	#include "util.h"	55	#include "util.h"
44		56
45	char *confbase;	57	char *confbase;
46	char *thisnode;	58	char *thisnode;
47	char *identname;	59	char *identname;
48	char *pidfilename;
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;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58		71
59	return 0;	72	return 0;
60	}	73	}
61		74
		75	const char *
62	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
63	{	77	{
64	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
65	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
66	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
67	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
68		83
69	return "<unknown>";	84	return "<unknown>";
70	}	85	}
71		86
72	void	87	static bool
73	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
74	{	89	{
75	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 (); )
76	id,	91	if ((i)[0] == '' && !(*i)[1])
77	id >> 8, id & 0xff,	92	return true;
78	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
79	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
80	connectmode == C_NEVER ? "never" :	95
81	connectmode == C_ALWAYS ? "always" : "",	96	return false;
82	nodename,	97	}
83	hostname ? hostname : "",	98
84	hostname ? ":" : "",	99	bool
85	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
86	);	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;
87	}	109	}
88		110
89	conf_node::~conf_node ()	111	conf_node::~conf_node ()
90	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
91	if (rsa_key)	116	if (rsa_key)
92	RSA_free (rsa_key);	117	RSA_free (rsa_key);
93		118
94	free (nodename);	119	free (nodename);
95	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
96	}	127	}
97		128
		129	void
98	void configuration::init ()	130	configuration::init ()
99	{	131	{
100	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
101		133
102	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
103	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
104	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
105	llevel = L_INFO;	138	llevel = L_INFO;
106	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
107	#if ENABLE_ICMP	140	#if ENABLE_ICMP
108	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
109	#endif	142	#endif
110		143
111	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
112	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
113	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
114	default_node.compress = true;	147	default_node.compress = true;
115	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
116	}	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 ("");
117		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
118	void configuration::cleanup()	170	configuration::cleanup ()
119	{	171	{
120	if (rsa_key)	172	if (rsa_key)
121	RSA_free (rsa_key);	173	RSA_free (rsa_key);
122		174
123	rsa_key = 0;	175	rsa_key = 0;
124		176
125	free (ifname); ifname = 0;	177	free (pidfilename); pidfilename = 0;
		178	free (ifname); ifname = 0;
126	#if ENABLE_HTTP_PROXY	179	#if ENABLE_HTTP_PROXY
127	free (proxy_host); proxy_host = 0;	180	free (proxy_host); proxy_host = 0;
128	free (proxy_auth); proxy_auth = 0;	181	free (proxy_auth); proxy_auth = 0;
129	#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;
130	}	191	}
131		192
132	void	193	void
133	configuration::clear_config ()	194	configuration::clear ()
134	{	195	{
135	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)
136	delete *i;	197	delete *i;
137		198
138	nodes.clear ();	199	nodes.clear ();
139		200
140	cleanup ();	201	cleanup ();
141	init ();	202	init ();
142	}	203	}
143		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
144	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
145	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
146	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
147	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
148	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
149	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
150	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
151	else \	218	else \
152	slog (L_WARN, \
153	_("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"); \
154	name, var, fname, lineno);	220	} while (0)
155		221
156	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
157	{	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	{
158	char *fname;	307	char *fname;
159	FILE *f;	308	FILE *f;
160		309
161	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
162		311
163	asprintf (&fname, "%s/vped.conf", confbase);
164	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
165		316
166	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;
167	{	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	{
168	char line[16384];	576	char line [2048];
169	int lineno = 0;	577	int lineno = 0;
170	char var, val;
171	conf_node *node = &default_node;
172		578
173	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
174	{	580	{
175	lineno++;	581	lineno++;
176		582
177	{	583	const char *warn = parse_line (line);
178	char *end = line + strlen (line);
179		584
180	while (*end < ' ' && end >= line)	585	if (warn)
181	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
182
183	*++end = 0;
184	}
185
186	char *tok = line;
187
188	retry:
189	var = strtok (tok, "\t =");
190	tok = 0;
191
192	if (!var \|\| !var[0])
193	continue; /* no tokens on this line */
194
195	if (var[0] == '#')
196	continue; /* comment: ignore */
197
198	val = strtok (NULL, "\t\n\r =");
199
200	if (!val \|\| val[0] == '#')
201	{
202	slog (L_WARN,
203	_("no value for variable `%s', at '%s' line %d"),
204	var, fname, lineno);
205	break;
206	}
207
208	if (!strcmp (var, "on"))
209	{
210	if (!::thisnode
211	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
212	\|\| !strcmp (val, ::thisnode))
213	goto retry;
214
215	continue;
216	}
217
218	// truly global
219	if (!strcmp (var, "loglevel"))
220	{
221	loglevel l = string_to_loglevel (val);
222
223	if (l != L_NONE)
224	llevel = l;
225	else
226	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
227	}
228	else if (!strcmp (var, "ip-proto"))
229	ip_proto = atoi (val);
230	#if ENABLE_ICMP
231	//TODO: error message
232	else if (!strcmp (var, "icmp-type"))
233	icmp_type = atoi (val);
234	#endif
235
236	// per config
237	else if (!strcmp (var, "node"))
238	{
239	default_node.id++;
240
241	node = new conf_node (default_node);
242
243	nodes.push_back (node);
244
245	node->nodename = strdup (val);
246
247	{
248	char *fname;
249	FILE *f;
250
251	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
252
253	f = fopen (fname, "r");
254	if (f)
255	{
256	node->rsa_key = RSA_new ();
257
258	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
259	{
260	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
261	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
262	exit (1);
263	}
264
265	RSA_blinding_on (node->rsa_key, 0);
266
267	fclose (f);
268	}
269	else
270	{
271	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
272
273	if (need_keys)
274	exit (1);
275	}
276
277	free (fname);
278	}
279
280	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
281	thisnode = node;
282	}
283	else if (!strcmp (var, "private-key"))
284	prikeyfile = strdup (val);
285	else if (!strcmp (var, "ifpersist"))
286	{
287	parse_bool (ifpersist, "ifpersist", true, false);
288	}
289	else if (!strcmp (var, "ifname"))
290	ifname = strdup (val);
291	else if (!strcmp (var, "rekey"))
292	rekey = atoi (val);
293	else if (!strcmp (var, "keepalive"))
294	keepalive = atoi (val);
295	else if (!strcmp (var, "mtu"))
296	mtu = atoi (val);
297	else if (!strcmp (var, "if-up"))
298	script_if_up = strdup (val);
299	else if (!strcmp (var, "node-up"))
300	script_node_up = strdup (val);
301	else if (!strcmp (var, "node-down"))
302	script_node_down = strdup (val);
303	#if ENABLE_HTTP_PROXY
304	else if (!strcmp (var, "http-proxy-host"))
305	proxy_host = strdup (val);
306	else if (!strcmp (var, "http-proxy-port"))
307	proxy_port = atoi (val);
308	else if (!strcmp (var, "http-proxy-auth"))
309	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
310	#endif
311
312	/* node-specific, non-defaultable */
313	else if (node != &default_node && !strcmp (var, "hostname"))
314	{
315	free (node->hostname);
316	node->hostname = strdup (val);
317	}
318
319	/* node-specific, defaultable */
320	else if (!strcmp (var, "udp-port"))
321	node->udp_port = atoi (val);
322	else if (!strcmp (var, "tcp-port"))
323	node->tcp_port = atoi (val);
324	else if (!strcmp (var, "router-priority"))
325	node->routerprio = atoi (val);
326	else if (!strcmp (var, "connect"))
327	{
328	if (!strcmp (val, "ondemand"))
329	node->connectmode = conf_node::C_ONDEMAND;
330	else if (!strcmp (val, "never"))
331	node->connectmode = conf_node::C_NEVER;
332	else if (!strcmp (val, "always"))
333	node->connectmode = conf_node::C_ALWAYS;
334	else if (!strcmp (val, "disabled"))
335	node->connectmode = conf_node::C_DISABLED;
336	else
337	slog (L_WARN,
338	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
339	var, fname, lineno);
340	}
341	else if (!strcmp (var, "inherit-tos"))
342	{
343	parse_bool (node->inherit_tos, "inherit-tos", true, false);
344	}
345	else if (!strcmp (var, "compress"))
346	{
347	parse_bool (node->compress, "compress", true, false);
348	}
349	// all these bool options really really cost a lot of executable size!
350	else if (!strcmp (var, "enable-tcp"))
351	{
352	#if ENABLE_TCP
353	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
354	#endif
355	}
356	else if (!strcmp (var, "enable-icmp"))
357	{
358	#if ENABLE_ICMP
359	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
360	#endif
361	}
362	else if (!strcmp (var, "enable-udp"))
363	{
364	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
365	}
366	else if (!strcmp (var, "enable-rawip"))
367	{
368	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
369	}
370
371	// unknown or misplaced
372	else
373	slog (L_WARN,
374	_("unknown or misplaced variable `%s', at '%s' line %d"),
375	var, fname, lineno);
376	}	587	}
377		588
378	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
379	}	592	}
380	else	593	else
381	{	594	{
382	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));
383	exit (1);	596	exit (EXIT_FAILURE);
384	}	597	}
		598	}
385		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);
386	free (fname);	613	free (fname);
387		614
388	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
389		616
390	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
391	if (f)
392	{	618	{
393	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
394		620
395	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
396	{	622	{
397	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
398	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));
399	exit (1);	625	exit (EXIT_FAILURE);
400	}	626	}
401		627
402	RSA_blinding_on (rsa_key, 0);	628	require (RSA_blinding_on (conf.rsa_key, 0));
403		629
404	fclose (f);	630	fclose (f);
405	}	631	}
406	else	632	else
407	{	633	{
408	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	634	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
409		635
410	if (need_keys)	636	if (need_keys)
411	exit (1);	637	exit (EXIT_FAILURE);
412	}	638	}
413		639
414	free (fname);	640	free (fname);
415	}
416		641
		642	if (need_keys && ::thisnode
		643	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		644	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		645	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		646	{
		647	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		648	exit (EXIT_FAILURE);
		649	}
		650
		651	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		652	(*i)->finalise ();
		653	}
		654
		655	char *
417	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
418	{	657	{
419	char *fname;	658	char *fname;
420		659
421	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
422		661
…		…
426	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
427	free (rname);	666	free (rname);
428	}	667	}
429		668
430	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	);
431	}	690	}
432		691
433	void	692	void
434	configuration::print ()	693	configuration::print ()
435	{	694	{
…		…
442	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
443	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
444	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);
445	printf ("\n");	704	printf ("\n");
446		705
447	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
448	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
449		708
450	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
451	(*i)->print ();	710	(*i)->print ();
452		711
453	printf ("\n");	712	printf ("\n");
454	}	713	}
455		714
456	configuration::configuration ()	715	configuration::configuration ()
457	{	716	{
		717	asprintf (&confbase, "%s/gvpe", CONFDIR);
		718
458	init ();	719	init ();
459	}	720	}
460		721
461	configuration::~configuration ()	722	configuration::~configuration ()
462	{	723	{
463	cleanup ();	724	cleanup ();
464	}	725	}
465		726
466

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Comparing gvpe/src/conf.C (file contents): Revision 1.19 by pcg, Thu Oct 16 20:35:14 2003 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 1.19 by pcg, Thu Oct 16 20:35:14 2003 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC