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

Comparing gvpe/src/conf.C (file contents):
Revision 1.23 by pcg, Thu Jan 29 19:30:08 2004 UTC vs.
Revision 1.59 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	char *pidfilename;
50		60
51	struct configuration conf;	61	struct configuration conf;
52		62
		63	u8
53	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
54	{	65	{
55	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
56	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
57	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
58	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		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";
		82	if (protocol & PROT_DNSv4 ) return "dns";
69		83
70	return "<unknown>";	84	return "<unknown>";
71	}	85	}
72		86
73	void	87	static bool
74	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
75	{	89	{
76	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 (); )
77	id,	91	if ((i)[0] == '' && !(*i)[1])
78	id >> 8, id & 0xff,	92	return true;
79	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
80	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
81	connectmode == C_NEVER ? "never" :	95
82	connectmode == C_ALWAYS ? "always" : "",	96	return false;
83	nodename,	97	}
84	hostname ? hostname : "",	98
85	hostname ? ":" : "",	99	bool
86	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
87	);	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;
88	}	109	}
89		110
90	conf_node::~conf_node ()	111	conf_node::~conf_node ()
91	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
92	if (rsa_key)	116	if (rsa_key)
93	RSA_free (rsa_key);	117	RSA_free (rsa_key);
94		118
95	free (nodename);	119	free (nodename);
96	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
97	}	127	}
98		128
		129	void
99	void configuration::init ()	130	configuration::init ()
100	{	131	{
101	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
102		133
103	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
104	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
105	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
106	llevel = L_INFO;	138	llevel = L_INFO;
107	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
108	#if ENABLE_ICMP	140	#if ENABLE_ICMP
109	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
110	#endif	142	#endif
111		143
112	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
113	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
114	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
115	default_node.compress = true;	147	default_node.compress = true;
116	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
117	}	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 ("");
118		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
119	void configuration::cleanup()	170	configuration::cleanup ()
120	{	171	{
121	if (rsa_key)	172	if (rsa_key)
122	RSA_free (rsa_key);	173	RSA_free (rsa_key);
123		174
124	rsa_key = 0;	175	rsa_key = 0;
125		176
126	free (ifname); ifname = 0;	177	free (pidfilename); pidfilename = 0;
		178	free (ifname); ifname = 0;
127	#if ENABLE_HTTP_PROXY	179	#if ENABLE_HTTP_PROXY
128	free (proxy_host); proxy_host = 0;	180	free (proxy_host); proxy_host = 0;
129	free (proxy_auth); proxy_auth = 0;	181	free (proxy_auth); proxy_auth = 0;
130	#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;
131	}	191	}
132		192
133	void	193	void
134	configuration::clear_config ()	194	configuration::clear ()
135	{	195	{
136	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)
137	delete *i;	197	delete *i;
138		198
139	nodes.clear ();	199	nodes.clear ();
140		200
141	cleanup ();	201	cleanup ();
142	init ();	202	init ();
143	}	203	}
144		204
		205	//static bool
		206	//is_true (const char *name)
		207	//{
		208	//re
		209	//}
		210
145	#define parse_bool(target,name,trueval,falseval) \	211	#define parse_bool(target,name,trueval,falseval) do { \
146	if (!strcmp (val, "yes")) target = trueval; \	212	if (!strcmp (val, "yes")) target = trueval; \
147	else if (!strcmp (val, "no")) target = falseval; \	213	else if (!strcmp (val, "no")) target = falseval; \
148	else if (!strcmp (val, "true")) target = trueval; \	214	else if (!strcmp (val, "true")) target = trueval; \
149	else if (!strcmp (val, "false")) target = falseval; \	215	else if (!strcmp (val, "false")) target = falseval; \
150	else if (!strcmp (val, "on")) target = trueval; \	216	else if (!strcmp (val, "on")) target = trueval; \
151	else if (!strcmp (val, "off")) target = falseval; \	217	else if (!strcmp (val, "off")) target = falseval; \
152	else \	218	else \
153	slog (L_WARN, \
154	_("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"); \
155	name, var, fname, lineno);	220	} while (0)
156		221
157	void configuration::read_config (bool need_keys)	222	const char *
		223	configuration_parser::parse_line (char *line)
158	{	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	{
159	char *fname;	307	char *fname;
160	FILE *f;	308	FILE *f;
161		309
162	clear_config ();	310	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
163		311
164	asprintf (&fname, "%s/vped.conf", confbase);
165	f = fopen (fname, "r");	312	f = fopen (fname, "r");
		313	if (f)
		314	{
		315	node->rsa_key = RSA_new ();
166		316
167	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;
168	{	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	{
169	char line[16384];	576	char line [2048];
170	int lineno = 0;	577	int lineno = 0;
171	char var, val;
172	conf_node *node = &default_node;
173		578
174	while (fgets (line, sizeof (line), f))	579	while (fgets (line, sizeof (line), f))
175	{	580	{
176	lineno++;	581	lineno++;
177		582
178	{	583	const char *warn = parse_line (line);
179	char *end = line + strlen (line);
180		584
181	while (*end < ' ' && end >= line)	585	if (warn)
182	end--;	586	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
183
184	*++end = 0;
185	}
186
187	char *tok = line;
188
189	retry:
190	var = strtok (tok, "\t =");
191	tok = 0;
192
193	if (!var \|\| !var[0])
194	continue; /* no tokens on this line */
195
196	if (var[0] == '#')
197	continue; /* comment: ignore */
198
199	val = strtok (NULL, "\t\n\r =");
200
201	if (!val \|\| val[0] == '#')
202	{
203	slog (L_WARN,
204	_("no value for variable `%s', at '%s' line %d"),
205	var, fname, lineno);
206	break;
207	}
208
209	if (!strcmp (var, "on"))
210	{
211	if (!::thisnode
212	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
213	\|\| !strcmp (val, ::thisnode))
214	goto retry;
215
216	continue;
217	}
218
219	// truly global
220	if (!strcmp (var, "loglevel"))
221	{
222	loglevel l = string_to_loglevel (val);
223
224	if (l != L_NONE)
225	llevel = l;
226	else
227	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
228	}
229	else if (!strcmp (var, "ip-proto"))
230	ip_proto = atoi (val);
231	else if (!strcmp (var, "icmp-type"))
232	{
233	#if ENABLE_ICMP
234	icmp_type = atoi (val);
235	#endif
236	}
237
238	// per config
239	else if (!strcmp (var, "node"))
240	{
241	default_node.id++;
242
243	node = new conf_node (default_node);
244
245	nodes.push_back (node);
246
247	node->nodename = strdup (val);
248
249	{
250	char *fname;
251	FILE *f;
252
253	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
254
255	f = fopen (fname, "r");
256	if (f)
257	{
258	node->rsa_key = RSA_new ();
259
260	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
261	{
262	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
263	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
264	exit (EXIT_FAILURE);
265	}
266
267	require (RSA_blinding_on (node->rsa_key, 0));
268
269	fclose (f);
270	}
271	else
272	{
273	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
274
275	if (need_keys)
276	exit (EXIT_FAILURE);
277	}
278
279	free (fname);
280	}
281
282	if (::thisnode && !strcmp (node->nodename, ::thisnode))
283	thisnode = node;
284	}
285	else if (!strcmp (var, "private-key"))
286	prikeyfile = strdup (val);
287	else if (!strcmp (var, "ifpersist"))
288	{
289	parse_bool (ifpersist, "ifpersist", true, false);
290	}
291	else if (!strcmp (var, "ifname"))
292	ifname = strdup (val);
293	else if (!strcmp (var, "rekey"))
294	rekey = atoi (val);
295	else if (!strcmp (var, "keepalive"))
296	keepalive = atoi (val);
297	else if (!strcmp (var, "mtu"))
298	mtu = atoi (val);
299	else if (!strcmp (var, "if-up"))
300	script_if_up = strdup (val);
301	else if (!strcmp (var, "node-up"))
302	script_node_up = strdup (val);
303	else if (!strcmp (var, "node-down"))
304	script_node_down = strdup (val);
305	else if (!strcmp (var, "http-proxy-host"))
306	{
307	#if ENABLE_HTTP_PROXY
308	proxy_host = strdup (val);
309	#endif
310	}
311	else if (!strcmp (var, "http-proxy-port"))
312	{
313	#if ENABLE_HTTP_PROXY
314	proxy_port = atoi (val);
315	#endif
316	}
317	else if (!strcmp (var, "http-proxy-auth"))
318	{
319	#if ENABLE_HTTP_PROXY
320	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
321	#endif
322	}
323
324	/* node-specific, non-defaultable */
325	else if (node != &default_node && !strcmp (var, "hostname"))
326	{
327	free (node->hostname);
328	node->hostname = strdup (val);
329	}
330
331	/* node-specific, defaultable */
332	else if (!strcmp (var, "udp-port"))
333	node->udp_port = atoi (val);
334	else if (!strcmp (var, "tcp-port"))
335	node->tcp_port = atoi (val);
336	else if (!strcmp (var, "router-priority"))
337	node->routerprio = atoi (val);
338	else if (!strcmp (var, "connect"))
339	{
340	if (!strcmp (val, "ondemand"))
341	node->connectmode = conf_node::C_ONDEMAND;
342	else if (!strcmp (val, "never"))
343	node->connectmode = conf_node::C_NEVER;
344	else if (!strcmp (val, "always"))
345	node->connectmode = conf_node::C_ALWAYS;
346	else if (!strcmp (val, "disabled"))
347	node->connectmode = conf_node::C_DISABLED;
348	else
349	slog (L_WARN,
350	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
351	var, fname, lineno);
352	}
353	else if (!strcmp (var, "inherit-tos"))
354	{
355	parse_bool (node->inherit_tos, "inherit-tos", true, false);
356	}
357	else if (!strcmp (var, "compress"))
358	{
359	parse_bool (node->compress, "compress", true, false);
360	}
361	// all these bool options really really cost a lot of executable size!
362	else if (!strcmp (var, "enable-tcp"))
363	{
364	#if ENABLE_TCP
365	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
366	#endif
367	}
368	else if (!strcmp (var, "enable-icmp"))
369	{
370	#if ENABLE_ICMP
371	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
372	#endif
373	}
374	else if (!strcmp (var, "enable-udp"))
375	{
376	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
377	}
378	else if (!strcmp (var, "enable-rawip"))
379	{
380	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
381	}
382
383	// unknown or misplaced
384	else
385	slog (L_WARN,
386	_("unknown or misplaced variable `%s', at '%s' line %d"),
387	var, fname, lineno);
388	}	587	}
389		588
390	fclose (f);	589	fclose (f);
		590
		591	parse_argv ();
391	}	592	}
392	else	593	else
393	{	594	{
394	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));
395	exit (EXIT_FAILURE);	596	exit (EXIT_FAILURE);
396	}	597	}
		598	}
397		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);
398	free (fname);	613	free (fname);
399		614
400	fname = config_filename (prikeyfile, "hostkey");	615	fname = conf.config_filename (conf.prikeyfile, "hostkey");
401		616
402	f = fopen (fname, "r");	617	if (FILE *f = fopen (fname, "r"))
403	if (f)
404	{	618	{
405	rsa_key = RSA_new ();	619	conf.rsa_key = RSA_new ();
406		620
407	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	621	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
408	{	622	{
409	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	623	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
410	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	624	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
411	exit (EXIT_FAILURE);	625	exit (EXIT_FAILURE);
412	}	626	}
413		627
414	require (RSA_blinding_on (rsa_key, 0));	628	require (RSA_blinding_on (conf.rsa_key, 0));
415		629
416	fclose (f);	630	fclose (f);
417	}	631	}
418	else	632	else
419	{	633	{
…		…
421		635
422	if (need_keys)	636	if (need_keys)
423	exit (EXIT_FAILURE);	637	exit (EXIT_FAILURE);
424	}	638	}
425		639
		640	free (fname);
		641
426	if (need_keys && ::thisnode	642	if (need_keys && ::thisnode
427	&& rsa_key && thisnode && thisnode->rsa_key)	643	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
428	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
429	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	645	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
430	{	646	{
431	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);
432	exit (EXIT_FAILURE);	648	exit (EXIT_FAILURE);
433	}	649	}
434		650
435	free (fname);	651	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		652	(*i)->finalise ();
436	}	653	}
437		654
		655	char *
438	char configuration::config_filename (const char name, const char *dflt)	656	configuration::config_filename (const char name, const char dflt)
439	{	657	{
440	char *fname;	658	char *fname;
441		659
442	asprintf (&fname, name ? name : dflt, ::thisnode);	660	asprintf (&fname, name ? name : dflt, ::thisnode);
443		661
…		…
447	asprintf (&fname, "%s/%s", confbase, rname);	665	asprintf (&fname, "%s/%s", confbase, rname);
448	free (rname);	666	free (rname);
449	}	667	}
450		668
451	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	);
452	}	690	}
453		691
454	void	692	void
455	configuration::print ()	693	configuration::print ()
456	{	694	{
…		…
463	printf (_("interface: %s\n"), ifname);	701	printf (_("interface: %s\n"), ifname);
464	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	702	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
465	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);
466	printf ("\n");	704	printf ("\n");
467		705
468	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	706	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
469	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	707	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
470		708
471	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	709	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
472	(*i)->print ();	710	(*i)->print ();
473		711
474	printf ("\n");	712	printf ("\n");
475	}	713	}
476		714
477	configuration::configuration ()	715	configuration::configuration ()
478	{	716	{
		717	asprintf (&confbase, "%s/gvpe", CONFDIR);
		718
479	init ();	719	init ();
480	}	720	}
481		721
482	configuration::~configuration ()	722	configuration::~configuration ()
483	{	723	{
484	cleanup ();	724	cleanup ();
485	}	725	}
486		726
487

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Comparing gvpe/src/conf.C (file contents): Revision 1.23 by pcg, Thu Jan 29 19:30:08 2004 UTC vs. Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.23 by pcg, Thu Jan 29 19:30:08 2004 UTC vs.
Revision 1.59 by root, Tue Dec 4 10:29:43 2012 UTC