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

Comparing gvpe/src/conf.C (file contents):
Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs.
Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
5	This file is part of GVPE.	5	This file is part of GVPE.
6		6
7	GVPE is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
8	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
9	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
10	(at your option) any later version.	10	option) any later version.
11		11
12	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
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15	GNU General Public License for more details.	15	Public License for more details.
16		16
17	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
18	along with gvpe; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
19	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.
20	*/	30	*/
21		31
22	#include "config.h"	32	#include "config.h"
23		33
24	#include <cstdio>	34	#include <cstdio>
28	#include <errno.h>	38	#include <errno.h>
29	#include <netdb.h>	39	#include <netdb.h>
30	#include <sys/stat.h>	40	#include <sys/stat.h>
31	#include <sys/types.h>	41	#include <sys/types.h>
32	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
33		44
34	#include "netcompat.h"	45	#include "netcompat.h"
35		46
36	#include <openssl/err.h>	47	#include <openssl/err.h>
37	#include <openssl/pem.h>	48	#include <openssl/pem.h>
…		…
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);
98	#if ENABLE_DNS	122	#if ENABLE_DNS
99	free (domain);	123	free (domain);
100	free (dns_hostname);	124	free (dns_hostname);
101	#endif	125	#endif
		126	#endif
102	}	127	}
103		128
		129	void
104	void configuration::init ()	130	configuration::init ()
105	{	131	{
106	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
107		133
108	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
109	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	138	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
113	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	147	default_node.compress = true;
121	default_node.protocols = 0;	148	default_node.protocols = 0;
122	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 ("");
123		153
124	#if ENABLE_DNS	154	#if ENABLE_DNS
125	default_node.dns_port = 0; // default is 0 == client	155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
126	dns_forw_host = strdup ("127.0.0.1");	158	dns_forw_host = strdup ("127.0.0.1");
127	dns_forw_port = 53;	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;
128	#endif	164	#endif
129		165
130	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
131	}	169	}
132		170
		171	void
133	void configuration::cleanup()	172	configuration::cleanup ()
134	{	173	{
135	if (rsa_key)	174	if (rsa_key)
136	RSA_free (rsa_key);	175	RSA_free (rsa_key);
137		176
138	rsa_key = 0;	177	rsa_key = 0;
139		178
		179	free (seed_dev); seed_dev = 0;
140	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
141	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
142	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
143	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
144	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
145	#endif	185	#endif
146	#if ENABLE_DNS	186	#if ENABLE_DNS
147	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
148	#endif	188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
149	}	194	}
150		195
151	void	196	void
152	configuration::clear_config ()	197	configuration::clear ()
153	{	198	{
154	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
155	delete *i;	200	delete *i;
156		201
157	nodes.clear ();	202	nodes.clear ();
158		203
159	cleanup ();	204	cleanup ();
160	init ();	205	init ();
161	}	206	}
162		207
		208	//static bool
		209	//is_true (const char *name)
		210	//{
		211	//re
		212	//}
		213
163	#define parse_bool(target,name,trueval,falseval) \	214	#define parse_bool(target,name,trueval,falseval) do { \
164	if (!strcmp (val, "yes")) target = trueval; \	215	if (!strcmp (val, "yes")) target = trueval; \
165	else if (!strcmp (val, "no")) target = falseval; \	216	else if (!strcmp (val, "no")) target = falseval; \
166	else if (!strcmp (val, "true")) target = trueval; \	217	else if (!strcmp (val, "true")) target = trueval; \
167	else if (!strcmp (val, "false")) target = falseval; \	218	else if (!strcmp (val, "false")) target = falseval; \
168	else if (!strcmp (val, "on")) target = trueval; \	219	else if (!strcmp (val, "on")) target = trueval; \
169	else if (!strcmp (val, "off")) target = falseval; \	220	else if (!strcmp (val, "off")) target = falseval; \
170	else \	221	else \
171	slog (L_WARN, \
172	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	222	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
173	name, var, fname, lineno);	223	} while (0)
174		224
175	void configuration::read_config (bool need_keys)	225	const char *
		226	configuration_parser::parse_line (char *line)
176	{	227	{
		228	{
		229	char *end = line + strlen (line);
		230
		231	while (*end < ' ' && end >= line)
		232	end--;
		233
		234	*++end = 0;
		235	}
		236
		237	char *tok = line;
		238	const char *var = strtok (tok, "\t =");
		239	tok = 0;
		240
		241	if (!var \|\| !var[0])
		242	return 0; /* no tokens on this line */
		243
		244	if (var[0] == '#')
		245	return 0; /* comment: ignore */
		246
		247	char *val = strtok (NULL, "\t\n\r =");
		248
		249	if (!val \|\| val[0] == '#')
		250	return _("no value given for variable, ignored");
		251
		252	else if (!strcmp (var, "on"))
		253	{
		254	if (::thisnode
		255	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		256	\|\| !strcmp (val, ::thisnode)))
		257	return parse_line (strtok (NULL, "\n\r"));
		258	}
		259
		260	else if (!strcmp (var, "include"))
		261	{
		262	char *fname = conf.config_filename (val);
		263	parse_file (fname);
		264	free (fname);
		265	}
		266
		267	// truly global
		268	else if (!strcmp (var, "loglevel"))
		269	{
		270	loglevel l = string_to_loglevel (val);
		271
		272	if (l == L_NONE)
		273	return _("unknown loglevel, ignored");
		274	}
		275	else if (!strcmp (var, "ip-proto"))
		276	conf.ip_proto = atoi (val);
		277	else if (!strcmp (var, "icmp-type"))
		278	{
		279	#if ENABLE_ICMP
		280	conf.icmp_type = atoi (val);
		281	#endif
		282	}
		283	else if (!strcmp (var, "chuser"))
		284	{
		285	struct passwd *pw = getpwnam (val);
		286	if (!pw)
		287	return _("user specified for chuser not found");
		288
		289	conf.change_uid = pw->pw_uid;
		290	conf.change_gid = pw->pw_gid;
		291	}
		292	else if (!strcmp (var, "chuid"))
		293	conf.change_uid = atoi (val);
		294	else if (!strcmp (var, "chgid"))
		295	conf.change_gid = atoi (val);
		296	else if (!strcmp (var, "chroot"))
		297	free (conf.change_root), conf.change_root = strdup (val);
		298
		299	// per node
		300	else if (!strcmp (var, "node"))
		301	{
		302	parse_argv ();
		303
		304	conf.default_node.id++;
		305	node = new conf_node (conf.default_node);
		306	conf.nodes.push_back (node);
		307	node->nodename = strdup (val);
		308
		309	{
177	char *fname;	310	char *fname;
178	FILE *f;	311	FILE *f;
179		312
180	clear_config ();	313	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
181		314
182	asprintf (&fname, "%s/gvpe.conf", confbase);
183	f = fopen (fname, "r");	315	f = fopen (fname, "r");
		316	if (f)
		317	{
		318	node->rsa_key = RSA_new ();
184		319
185	if (f)	320	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		321	{
		322	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		323	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		324	exit (EXIT_FAILURE);
		325	}
		326
		327	require (RSA_blinding_on (node->rsa_key, 0));
		328
		329	fclose (f);
		330	}
		331	else
		332	{
		333	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		334
		335	if (need_keys)
		336	exit (EXIT_FAILURE);
		337	}
		338
		339	free (fname);
		340	}
		341
		342	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		343	conf.thisnode = node;
186	{	344	}
		345	else if (!strcmp (var, "private-key"))
		346	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		347	else if (!strcmp (var, "ifpersist"))
		348	parse_bool (conf.ifpersist, "ifpersist", true, false);
		349	else if (!strcmp (var, "ifname"))
		350	free (conf.ifname), conf.ifname = strdup (val);
		351	else if (!strcmp (var, "rekey"))
		352	conf.rekey = atoi (val);
		353	else if (!strcmp (var, "keepalive"))
		354	conf.keepalive = atoi (val);
		355	else if (!strcmp (var, "mtu"))
		356	conf.mtu = atoi (val);
		357	else if (!strcmp (var, "nfmark"))
		358	conf.nfmark = atoi (val);
		359	else if (!strcmp (var, "seed-device"))
		360	free (conf.seed_dev), conf.seed_dev = strdup (val);
		361	else if (!strcmp (var, "seed-interval"))
		362	conf.reseed = atoi (val);
		363	else if (!strcmp (var, "if-up"))
		364	free (conf.script_if_up), conf.script_if_up = strdup (val);
		365	else if (!strcmp (var, "node-up"))
		366	free (conf.script_node_up), conf.script_node_up = strdup (val);
		367	else if (!strcmp (var, "node-change"))
		368	free (conf.script_node_change), conf.script_node_change = strdup (val);
		369	else if (!strcmp (var, "node-down"))
		370	free (conf.script_node_down), conf.script_node_down = strdup (val);
		371	else if (!strcmp (var, "pid-file"))
		372	free (conf.pidfilename), conf.pidfilename = strdup (val);
		373	else if (!strcmp (var, "dns-forw-host"))
		374	{
		375	#if ENABLE_DNS
		376	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "dns-forw-port"))
		380	{
		381	#if ENABLE_DNS
		382	conf.dns_forw_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "dns-timeout-factor"))
		386	{
		387	#if ENABLE_DNS
		388	conf.dns_timeout_factor = atof (val);
		389	#endif
		390	}
		391	else if (!strcmp (var, "dns-send-interval"))
		392	{
		393	#if ENABLE_DNS
		394	conf.dns_send_interval = atoi (val);
		395	#endif
		396	}
		397	else if (!strcmp (var, "dns-overlap-factor"))
		398	{
		399	#if ENABLE_DNS
		400	conf.dns_overlap_factor = atof (val);
		401	#endif
		402	}
		403	else if (!strcmp (var, "dns-max-outstanding"))
		404	{
		405	#if ENABLE_DNS
		406	conf.dns_max_outstanding = atoi (val);
		407	#endif
		408	}
		409	else if (!strcmp (var, "dns-case-preserving"))
		410	{
		411	#if ENABLE_DNS
		412	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		413	#endif
		414	}
		415	else if (!strcmp (var, "http-proxy-host"))
		416	{
		417	#if ENABLE_HTTP_PROXY
		418	free (conf.proxy_host), conf.proxy_host = strdup (val);
		419	#endif
		420	}
		421	else if (!strcmp (var, "http-proxy-port"))
		422	{
		423	#if ENABLE_HTTP_PROXY
		424	conf.proxy_port = atoi (val);
		425	#endif
		426	}
		427	else if (!strcmp (var, "http-proxy-auth"))
		428	{
		429	#if ENABLE_HTTP_PROXY
		430	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		431	#endif
		432	}
		433
		434	/* node-specific, non-defaultable */
		435	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		436	free (node->hostname), node->hostname = strdup (val);
		437
		438	/* node-specific, defaultable */
		439	else if (!strcmp (var, "udp-port"))
		440	node->udp_port = atoi (val);
		441	else if (!strcmp (var, "tcp-port"))
		442	node->tcp_port = atoi (val);
		443	else if (!strcmp (var, "dns-hostname"))
		444	{
		445	#if ENABLE_DNS
		446	free (node->dns_hostname), node->dns_hostname = strdup (val);
		447	#endif
		448	}
		449	else if (!strcmp (var, "dns-port"))
		450	{
		451	#if ENABLE_DNS
		452	node->dns_port = atoi (val);
		453	#endif
		454	}
		455	else if (!strcmp (var, "dns-domain"))
		456	{
		457	#if ENABLE_DNS
		458	free (node->domain), node->domain = strdup (val);
		459	#endif
		460	}
		461	else if (!strcmp (var, "if-up-data"))
		462	free (node->if_up_data), node->if_up_data = strdup (val);
		463	else if (!strcmp (var, "router-priority"))
		464	node->routerprio = atoi (val);
		465	else if (!strcmp (var, "max-retry"))
		466	node->max_retry = atoi (val);
		467	else if (!strcmp (var, "connect"))
		468	{
		469	if (!strcmp (val, "ondemand"))
		470	node->connectmode = conf_node::C_ONDEMAND;
		471	else if (!strcmp (val, "never"))
		472	node->connectmode = conf_node::C_NEVER;
		473	else if (!strcmp (val, "always"))
		474	node->connectmode = conf_node::C_ALWAYS;
		475	else if (!strcmp (val, "disabled"))
		476	node->connectmode = conf_node::C_DISABLED;
		477	else
		478	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		479	}
		480	else if (!strcmp (var, "inherit-tos"))
		481	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		482	else if (!strcmp (var, "compress"))
		483	parse_bool (node->compress, "compress", true, false);
		484	// all these bool options really really cost a lot of executable size!
		485	else if (!strcmp (var, "enable-tcp"))
		486	{
		487	#if ENABLE_TCP
		488	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		489	#endif
		490	}
		491	else if (!strcmp (var, "enable-icmp"))
		492	{
		493	#if ENABLE_ICMP
		494	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		495	#endif
		496	}
		497	else if (!strcmp (var, "enable-dns"))
		498	{
		499	#if ENABLE_DNS
		500	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		501	#endif
		502	}
		503	else if (!strcmp (var, "enable-udp"))
		504	{
		505	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		506	}
		507	else if (!strcmp (var, "enable-rawip"))
		508	{
		509	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		510	}
		511	else if (!strcmp (var, "allow-direct"))
		512	node->allow_direct.push_back (strdup (val));
		513	else if (!strcmp (var, "deny-direct"))
		514	node->deny_direct.push_back (strdup (val));
		515	else if (!strcmp (var, "max-ttl"))
		516	node->max_ttl = atof (val);
		517	else if (!strcmp (var, "max-queue"))
		518	node->max_queue = atoi (val);
		519
		520	// unknown or misplaced
		521	else
		522	return _("unknown configuration directive - ignored");
		523
		524	return 0;
		525	}
		526
		527	void
		528	conf_node::finalise ()
		529	{
		530	if (max_queue < 1)
		531	{
		532	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		533	max_queue = 1;
		534	}
		535
		536	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		537	{
		538	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		539	connectmode = C_ALWAYS;
		540	}
		541	}
		542
		543	void
		544	configuration_parser::parse_argv ()
		545	{
		546	for (int i = 0; i < argc; ++i)
		547	{
		548	char *v = argv [i];
		549
		550	if (!*v)
		551	continue;
		552
		553	char *enode = v;
		554
		555	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		556	enode++;
		557
		558	if (*enode != '.')
		559	enode = 0;
		560
		561	char *wnode = node == &conf.default_node
		562	? 0
		563	: node->nodename;
		564
		565	if ((!wnode && !enode)
		566	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		567	{
		568	const char *warn = parse_line (enode ? enode + 1 : v);
		569
		570	if (warn)
		571	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		572
		573	*v = 0;
		574	}
		575	}
		576	}
		577
		578	void
		579	configuration_parser::parse_file (const char *fname)
		580	{
		581	if (FILE *f = fopen (fname, "r"))
		582	{
187	char line[16384];	583	char line [2048];
188	int lineno = 0;	584	int lineno = 0;
189	char var, val;
190	conf_node *node = &default_node;
191		585
192	while (fgets (line, sizeof (line), f))	586	while (fgets (line, sizeof (line), f))
193	{	587	{
194	lineno++;	588	lineno++;
195		589
196	{	590	const char *warn = parse_line (line);
197	char *end = line + strlen (line);
198		591
199	while (*end < ' ' && end >= line)	592	if (warn)
200	end--;	593	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
201
202	*++end = 0;
203	}
204
205	char *tok = line;
206
207	retry:
208	var = strtok (tok, "\t =");
209	tok = 0;
210
211	if (!var \|\| !var[0])
212	continue; /* no tokens on this line */
213
214	if (var[0] == '#')
215	continue; /* comment: ignore */
216
217	val = strtok (NULL, "\t\n\r =");
218
219	if (!val \|\| val[0] == '#')
220	{
221	slog (L_WARN,
222	_("no value for variable `%s', at '%s' line %d, skipping."),
223	var, fname, lineno);
224	continue;
225	}
226
227	if (!strcmp (var, "on"))
228	{
229	if (!::thisnode
230	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
231	\|\| !strcmp (val, ::thisnode))
232	goto retry;
233
234	continue;
235	}
236
237	// truly global
238	if (!strcmp (var, "loglevel"))
239	{
240	loglevel l = string_to_loglevel (val);
241
242	if (l != L_NONE)
243	llevel = l;
244	else
245	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
246	}
247	else if (!strcmp (var, "ip-proto"))
248	ip_proto = atoi (val);
249	else if (!strcmp (var, "icmp-type"))
250	{
251	#if ENABLE_ICMP
252	icmp_type = atoi (val);
253	#endif
254	}
255
256	// per config
257	else if (!strcmp (var, "node"))
258	{
259	default_node.id++;
260
261	node = new conf_node (default_node);
262
263	nodes.push_back (node);
264
265	node->nodename = strdup (val);
266
267	{
268	char *fname;
269	FILE *f;
270
271	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
272
273	f = fopen (fname, "r");
274	if (f)
275	{
276	node->rsa_key = RSA_new ();
277
278	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
279	{
280	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
281	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
282	exit (EXIT_FAILURE);
283	}
284
285	require (RSA_blinding_on (node->rsa_key, 0));
286
287	fclose (f);
288	}
289	else
290	{
291	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
292
293	if (need_keys)
294	exit (EXIT_FAILURE);
295	}
296
297	free (fname);
298	}
299
300	if (::thisnode && !strcmp (node->nodename, ::thisnode))
301	thisnode = node;
302	}
303	else if (!strcmp (var, "private-key"))
304	free (prikeyfile), prikeyfile = strdup (val);
305	else if (!strcmp (var, "ifpersist"))
306	parse_bool (ifpersist, "ifpersist", true, false);
307	else if (!strcmp (var, "ifname"))
308	free (ifname), ifname = strdup (val);
309	else if (!strcmp (var, "rekey"))
310	rekey = atoi (val);
311	else if (!strcmp (var, "keepalive"))
312	keepalive = atoi (val);
313	else if (!strcmp (var, "mtu"))
314	mtu = atoi (val);
315	else if (!strcmp (var, "if-up"))
316	free (script_if_up), script_if_up = strdup (val);
317	else if (!strcmp (var, "node-up"))
318	free (script_node_up), script_node_up = strdup (val);
319	else if (!strcmp (var, "node-down"))
320	free (script_node_down), script_node_down = strdup (val);
321	else if (!strcmp (var, "pid-file"))
322	free (pidfilename), pidfilename = strdup (val);
323	else if (!strcmp (var, "dns-forw-host"))
324	{
325	#if ENABLE_DNS
326	free (dns_forw_host), dns_forw_host = strdup (val);
327	#endif
328	}
329	else if (!strcmp (var, "dns-forw-port"))
330	{
331	#if ENABLE_DNS
332	dns_forw_port = atoi (val);
333	#endif
334	}
335	else if (!strcmp (var, "http-proxy-host"))
336	{
337	#if ENABLE_HTTP_PROXY
338	free (proxy_host), proxy_host = strdup (val);
339	#endif
340	}
341	else if (!strcmp (var, "http-proxy-port"))
342	{
343	#if ENABLE_HTTP_PROXY
344	proxy_port = atoi (val);
345	#endif
346	}
347	else if (!strcmp (var, "http-proxy-auth"))
348	{
349	#if ENABLE_HTTP_PROXY
350	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
351	#endif
352	}
353
354	/* node-specific, non-defaultable */
355	else if (node != &default_node && !strcmp (var, "hostname"))
356	free (node->hostname), node->hostname = strdup (val);
357
358	/* node-specific, defaultable */
359	else if (!strcmp (var, "udp-port"))
360	node->udp_port = atoi (val);
361	else if (!strcmp (var, "tcp-port"))
362	node->tcp_port = atoi (val);
363	else if (!strcmp (var, "dns-hostname"))
364	{
365	#if ENABLE_DNS
366	free (node->dns_hostname), node->dns_hostname = strdup (val);
367	#endif
368	}
369	else if (!strcmp (var, "dns-port"))
370	{
371	#if ENABLE_DNS
372	node->dns_port = atoi (val);
373	#endif
374	}
375	else if (!strcmp (var, "dns-domain"))
376	{
377	#if ENABLE_DNS
378	free (node->domain), node->domain = strdup (val);
379	#endif
380	}
381	else if (!strcmp (var, "router-priority"))
382	node->routerprio = atoi (val);
383	else if (!strcmp (var, "max-retry"))
384	node->max_retry = atoi (val);
385	else if (!strcmp (var, "connect"))
386	{
387	if (!strcmp (val, "ondemand"))
388	node->connectmode = conf_node::C_ONDEMAND;
389	else if (!strcmp (val, "never"))
390	node->connectmode = conf_node::C_NEVER;
391	else if (!strcmp (val, "always"))
392	node->connectmode = conf_node::C_ALWAYS;
393	else if (!strcmp (val, "disabled"))
394	node->connectmode = conf_node::C_DISABLED;
395	else
396	slog (L_WARN,
397	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
398	var, fname, lineno);
399	}
400	else if (!strcmp (var, "inherit-tos"))
401	parse_bool (node->inherit_tos, "inherit-tos", true, false);
402	else if (!strcmp (var, "compress"))
403	parse_bool (node->compress, "compress", true, false);
404	// all these bool options really really cost a lot of executable size!
405	else if (!strcmp (var, "enable-tcp"))
406	{
407	#if ENABLE_TCP
408	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
409	#endif
410	}
411	else if (!strcmp (var, "enable-icmp"))
412	{
413	#if ENABLE_ICMP
414	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
415	#endif
416	}
417	else if (!strcmp (var, "enable-dns"))
418	{
419	#if ENABLE_DNS
420	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
421	#endif
422	}
423	else if (!strcmp (var, "enable-udp"))
424	{
425	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
426	}
427	else if (!strcmp (var, "enable-rawip"))
428	{
429	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
430	}
431
432	// unknown or misplaced
433	else
434	slog (L_WARN,
435	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
436	var, fname, lineno);
437	}	594	}
438		595
439	fclose (f);	596	fclose (f);
		597
		598	parse_argv ();
440	}	599	}
441	else	600	else
442	{	601	{
443	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	602	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
444	exit (EXIT_FAILURE);	603	exit (EXIT_FAILURE);
445	}	604	}
		605	}
446		606
		607	configuration_parser::configuration_parser (configuration &conf,
		608	bool need_keys,
		609	int argc,
		610	char **argv)
		611	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
		612	{
		613	char *fname;
		614
		615	conf.clear ();
		616	node = &conf.default_node;
		617
		618	asprintf (&fname, "%s/gvpe.conf", confbase);
		619	parse_file (fname);
447	free (fname);	620	free (fname);
448		621
449	fname = config_filename (prikeyfile, "hostkey");	622	fname = conf.config_filename (conf.prikeyfile, "hostkey");
450		623
451	f = fopen (fname, "r");	624	if (FILE *f = fopen (fname, "r"))
452	if (f)
453	{	625	{
454	rsa_key = RSA_new ();	626	conf.rsa_key = RSA_new ();
455		627
456	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	628	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
457	{	629	{
458	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	630	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
459	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	631	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
460	exit (EXIT_FAILURE);	632	exit (EXIT_FAILURE);
461	}	633	}
462		634
463	require (RSA_blinding_on (rsa_key, 0));	635	require (RSA_blinding_on (conf.rsa_key, 0));
464		636
465	fclose (f);	637	fclose (f);
466	}	638	}
467	else	639	else
468	{	640	{
469	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
470
471	if (need_keys)	641	if (need_keys)
		642	{
		643	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
472	exit (EXIT_FAILURE);	644	exit (EXIT_FAILURE);
		645	}
473	}	646	}
		647
		648	free (fname);
474		649
475	if (need_keys && ::thisnode	650	if (need_keys && ::thisnode
476	&& rsa_key && thisnode && thisnode->rsa_key)	651	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
477	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0	652	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
478	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)	653	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
479	{	654	{
480	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);	655	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
481	exit (EXIT_FAILURE);	656	exit (EXIT_FAILURE);
482	}	657	}
483		658
484	free (fname);	659	fname = conf.config_filename (conf.pidfilename);
485	}	660	free (conf.pidfilename); conf.pidfilename = fname;
486		661
		662	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		663	(*i)->finalise ();
		664	}
		665
		666	char *
487	char configuration::config_filename (const char name, const char *dflt)	667	configuration::config_filename (const char name, const char dflt)
488	{	668	{
489	char *fname;	669	char *fname;
490		670
491	asprintf (&fname, name ? name : dflt, ::thisnode);	671	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
492		672
493	if (!ABSOLUTE_PATH (fname))	673	if (!ABSOLUTE_PATH (fname))
494	{	674	{
495	char *rname = fname;	675	char *rname = fname;
496	asprintf (&fname, "%s/%s", confbase, rname);	676	asprintf (&fname, "%s/%s", confbase, rname);
497	free (rname);	677	free (rname);
498	}	678	}
499		679
500	return fname;	680	return fname;
		681	}
		682
		683	void
		684	conf_node::print ()
		685	{
		686	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		687	id,
		688	id >> 8, id & 0xff,
		689	compress ? 'Y' : 'N',
		690	connectmode == C_ONDEMAND ? "ondemand"
		691	: connectmode == C_NEVER ? "never"
		692	: connectmode == C_ALWAYS ? "always"
		693	: connectmode == C_DISABLED ? "disabled"
		694	: "",
		695	nodename,
		696	protocols,
		697	hostname ? hostname : "",
		698	hostname ? ":" : "",
		699	hostname ? udp_port : 0
		700	);
501	}	701	}
502		702
503	void	703	void
504	configuration::print ()	704	configuration::print ()
505	{	705	{
…		…
512	printf (_("interface: %s\n"), ifname);	712	printf (_("interface: %s\n"), ifname);
513	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	713	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
514	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	714	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
515	printf ("\n");	715	printf ("\n");
516		716
517	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	717	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
518	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	718	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
519		719
520	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	720	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
521	(*i)->print ();	721	(*i)->print ();
522		722
523	printf ("\n");	723	printf ("\n");
…		…
533	configuration::~configuration ()	733	configuration::~configuration ()
534	{	734	{
535	cleanup ();	735	cleanup ();
536	}	736	}
537		737
538

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Comparing gvpe/src/conf.C (file contents): Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs. Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs.
Revision 1.61 by root, Tue Jul 16 16:44:36 2013 UTC