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

Comparing gvpe/src/conf.C (file contents):
Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	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
10	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
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	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
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	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
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	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.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
35		44
36	#include <netinet/in.h>	45	#include "netcompat.h"
37		46
38	#include <openssl/err.h>	47	#include <openssl/err.h>
39	#include <openssl/pem.h>	48	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	50	#include <openssl/rand.h>
42		51	#include <openssl/bn.h>
43	#include "gettext.h"
44		52
45	#include "conf.h"	53	#include "conf.h"
46	#include "slog.h"	54	#include "slog.h"
47	#include "util.h"	55	#include "util.h"
48		56
49	char *confbase;	57	char *confbase;
50	char *thisnode;	58	char *thisnode;
51	char *identname;	59	char *identname;
52	char *pidfilename;
53		60
54	struct configuration conf;	61	struct configuration conf;
55		62
		63	u8
56	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
57	{	65	{
58	if (protset & PROT_IPv4)	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
59	return PROT_IPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
60		71
61	return PROT_UDPv4;	72	return 0;
62	}	73	}
63		74
		75	const char *
64	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
65	{	77	{
66	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
		79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
		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	configuration::configuration ()	87	static bool
		88	match_list (const vector<const char > &list, const char str)
73	{	89	{
74	init ();	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
75	}	91	if ((i)[0] == '' && !(*i)[1])
		92	return true;
		93	else if (!strcmp (*i, str))
		94	return true;
76		95
77	configuration::~configuration ()	96	return false;
78	{
79	cleanup ();
80	}	97	}
81		98
		99	bool
		100	conf_node::may_direct (struct conf_node *other)
		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;
		109	}
		110
		111	conf_node::~conf_node ()
		112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
		116	if (rsa_key)
		117	RSA_free (rsa_key);
		118
		119	free (nodename);
		120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
		127	}
		128
		129	void
82	void configuration::init ()	130	configuration::init ()
83	{	131	{
84	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
85		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
86	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
87	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
88	llevel = L_INFO;	138	llevel = L_INFO;
89	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
90		143
91	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
		145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
92	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
93	default_node.compress = true;	147	default_node.compress = true;
94	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
95	}	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 ("");
96		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	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
		169	}
		170
		171	void
97	void configuration::cleanup()	172	configuration::cleanup ()
98	{	173	{
99	if (rsa_key)	174	if (rsa_key)
100	RSA_free (rsa_key);	175	RSA_free (rsa_key);
101		176
102	free (ifname);
103
104	rsa_key = 0;	177	rsa_key = 0;
105	ifname = 0;	178
		179	free (seed_dev); seed_dev = 0;
		180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
		182	#if ENABLE_HTTP_PROXY
		183	free (proxy_host); proxy_host = 0;
		184	free (proxy_auth); proxy_auth = 0;
		185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		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;
106	}	194	}
107		195
108	void	196	void
109	configuration::clear_config ()	197	configuration::clear ()
110	{	198	{
111	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)
112	delete *i;	200	delete *i;
113		201
114	nodes.clear ();	202	nodes.clear ();
115		203
116	cleanup ();	204	cleanup ();
117	init ();	205	init ();
118	}	206	}
119		207
		208	conf_node *
		209	configuration::find_node (const char *name)
		210	{
		211	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		212	if (!strcmp ((*i)->nodename, name))
		213	return *i;
		214
		215	return 0;
		216	}
		217
		218	//static bool
		219	//is_true (const char *name)
		220	//{
		221	//re
		222	//}
		223
120	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
121	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
122	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
123	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
124	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
125	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
126	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
127	else \	231	else \
128	slog (L_WARN, \
129	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	232	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
130	name, var, fname, lineno);	233	} while (0)
131		234
132	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
133	{	237	{
134	char *fname;	238	{
135	FILE *f;	239	char *end = line + strlen (line);
136		240
137	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
138		243
139	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
140	f = fopen (fname, "r");	245	}
141		246
142	if (f)	247	char *tok = line;
		248	const char *var = strtok (tok, "\t =");
		249	tok = 0;
		250
		251	if (!var \|\| !var[0])
		252	return 0; /* no tokens on this line */
		253
		254	if (var[0] == '#')
		255	return 0; /* comment: ignore */
		256
		257	char *val = strtok (NULL, "\t\n\r =");
		258
		259	if (!val \|\| val[0] == '#')
		260	return _("no value given for variable, ignored");
		261
		262	else if (!strcmp (var, "on"))
		263	{
		264	if (::thisnode
		265	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		266	\|\| !strcmp (val, ::thisnode)))
		267	return parse_line (strtok (NULL, "\n\r"));
143	{	268	}
		269
		270	else if (!strcmp (var, "include"))
		271	{
		272	char *fname = conf.config_filename (val);
		273	parse_file (fname);
		274	free (fname);
		275	}
		276
		277	// truly global
		278	else if (!strcmp (var, "loglevel"))
		279	{
		280	loglevel l = string_to_loglevel (val);
		281
		282	if (l == L_NONE)
		283	return _("unknown loglevel, ignored");
		284	}
		285	else if (!strcmp (var, "ip-proto"))
		286	conf.ip_proto = atoi (val);
		287	else if (!strcmp (var, "icmp-type"))
		288	{
		289	#if ENABLE_ICMP
		290	conf.icmp_type = atoi (val);
		291	#endif
		292	}
		293	else if (!strcmp (var, "chuser"))
		294	{
		295	struct passwd *pw = getpwnam (val);
		296	if (!pw)
		297	return _("user specified for chuser not found");
		298
		299	conf.change_uid = pw->pw_uid;
		300	conf.change_gid = pw->pw_gid;
		301	}
		302	else if (!strcmp (var, "chuid"))
		303	conf.change_uid = atoi (val);
		304	else if (!strcmp (var, "chgid"))
		305	conf.change_gid = atoi (val);
		306	else if (!strcmp (var, "chroot"))
		307	free (conf.change_root), conf.change_root = strdup (val);
		308
		309	// per node
		310	else if (!strcmp (var, "global"))
		311	node = &conf.default_node;
		312	else if (!strcmp (var, "node"))
		313	{
		314	node = conf.find_node (val);
		315
		316	if (!node)
		317	{
		318	conf.default_node.id++;
		319	node = new conf_node (conf.default_node);
		320	conf.nodes.push_back (node);
		321	node->nodename = strdup (val);
		322	}
		323	}
		324	else if (!strcmp (var, "private-key"))
		325	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		326	else if (!strcmp (var, "ifpersist"))
		327	parse_bool (conf.ifpersist, "ifpersist", true, false);
		328	else if (!strcmp (var, "ifname"))
		329	free (conf.ifname), conf.ifname = strdup (val);
		330	else if (!strcmp (var, "rekey"))
		331	conf.rekey = atoi (val);
		332	else if (!strcmp (var, "keepalive"))
		333	conf.keepalive = atoi (val);
		334	else if (!strcmp (var, "mtu"))
		335	conf.mtu = atoi (val);
		336	else if (!strcmp (var, "nfmark"))
		337	conf.nfmark = atoi (val);
		338	else if (!strcmp (var, "seed-device"))
		339	free (conf.seed_dev), conf.seed_dev = strdup (val);
		340	else if (!strcmp (var, "seed-interval"))
		341	conf.reseed = atoi (val);
		342	else if (!strcmp (var, "if-up"))
		343	free (conf.script_if_up), conf.script_if_up = strdup (val);
		344	else if (!strcmp (var, "node-up"))
		345	free (conf.script_node_up), conf.script_node_up = strdup (val);
		346	else if (!strcmp (var, "node-change"))
		347	free (conf.script_node_change), conf.script_node_change = strdup (val);
		348	else if (!strcmp (var, "node-down"))
		349	free (conf.script_node_down), conf.script_node_down = strdup (val);
		350	else if (!strcmp (var, "pid-file"))
		351	free (conf.pidfilename), conf.pidfilename = strdup (val);
		352	else if (!strcmp (var, "dns-forw-host"))
		353	{
		354	#if ENABLE_DNS
		355	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		356	#endif
		357	}
		358	else if (!strcmp (var, "dns-forw-port"))
		359	{
		360	#if ENABLE_DNS
		361	conf.dns_forw_port = atoi (val);
		362	#endif
		363	}
		364	else if (!strcmp (var, "dns-timeout-factor"))
		365	{
		366	#if ENABLE_DNS
		367	conf.dns_timeout_factor = atof (val);
		368	#endif
		369	}
		370	else if (!strcmp (var, "dns-send-interval"))
		371	{
		372	#if ENABLE_DNS
		373	conf.dns_send_interval = atoi (val);
		374	#endif
		375	}
		376	else if (!strcmp (var, "dns-overlap-factor"))
		377	{
		378	#if ENABLE_DNS
		379	conf.dns_overlap_factor = atof (val);
		380	#endif
		381	}
		382	else if (!strcmp (var, "dns-max-outstanding"))
		383	{
		384	#if ENABLE_DNS
		385	conf.dns_max_outstanding = atoi (val);
		386	#endif
		387	}
		388	else if (!strcmp (var, "dns-case-preserving"))
		389	{
		390	#if ENABLE_DNS
		391	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		392	#endif
		393	}
		394	else if (!strcmp (var, "http-proxy-host"))
		395	{
		396	#if ENABLE_HTTP_PROXY
		397	free (conf.proxy_host), conf.proxy_host = strdup (val);
		398	#endif
		399	}
		400	else if (!strcmp (var, "http-proxy-port"))
		401	{
		402	#if ENABLE_HTTP_PROXY
		403	conf.proxy_port = atoi (val);
		404	#endif
		405	}
		406	else if (!strcmp (var, "http-proxy-auth"))
		407	{
		408	#if ENABLE_HTTP_PROXY
		409	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		410	#endif
		411	}
		412
		413	/* node-specific, non-defaultable */
		414	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		415	free (node->hostname), node->hostname = strdup (val);
		416
		417	/* node-specific, defaultable */
		418	else if (!strcmp (var, "udp-port"))
		419	node->udp_port = atoi (val);
		420	else if (!strcmp (var, "tcp-port"))
		421	node->tcp_port = atoi (val);
		422	else if (!strcmp (var, "dns-hostname"))
		423	{
		424	#if ENABLE_DNS
		425	free (node->dns_hostname), node->dns_hostname = strdup (val);
		426	#endif
		427	}
		428	else if (!strcmp (var, "dns-port"))
		429	{
		430	#if ENABLE_DNS
		431	node->dns_port = atoi (val);
		432	#endif
		433	}
		434	else if (!strcmp (var, "dns-domain"))
		435	{
		436	#if ENABLE_DNS
		437	free (node->domain), node->domain = strdup (val);
		438	#endif
		439	}
		440	else if (!strcmp (var, "if-up-data"))
		441	free (node->if_up_data), node->if_up_data = strdup (val);
		442	else if (!strcmp (var, "router-priority"))
		443	node->routerprio = atoi (val);
		444	else if (!strcmp (var, "max-retry"))
		445	node->max_retry = atoi (val);
		446	else if (!strcmp (var, "connect"))
		447	{
		448	if (!strcmp (val, "ondemand"))
		449	node->connectmode = conf_node::C_ONDEMAND;
		450	else if (!strcmp (val, "never"))
		451	node->connectmode = conf_node::C_NEVER;
		452	else if (!strcmp (val, "always"))
		453	node->connectmode = conf_node::C_ALWAYS;
		454	else if (!strcmp (val, "disabled"))
		455	node->connectmode = conf_node::C_DISABLED;
		456	else
		457	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		458	}
		459	else if (!strcmp (var, "inherit-tos"))
		460	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		461	else if (!strcmp (var, "compress"))
		462	parse_bool (node->compress, "compress", true, false);
		463	// all these bool options really really cost a lot of executable size!
		464	else if (!strcmp (var, "enable-tcp"))
		465	{
		466	#if ENABLE_TCP
		467	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		468	#endif
		469	}
		470	else if (!strcmp (var, "enable-icmp"))
		471	{
		472	#if ENABLE_ICMP
		473	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		474	#endif
		475	}
		476	else if (!strcmp (var, "enable-dns"))
		477	{
		478	#if ENABLE_DNS
		479	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		480	#endif
		481	}
		482	else if (!strcmp (var, "enable-udp"))
		483	{
		484	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		485	}
		486	else if (!strcmp (var, "enable-rawip"))
		487	{
		488	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		489	}
		490	else if (!strcmp (var, "allow-direct"))
		491	node->allow_direct.push_back (strdup (val));
		492	else if (!strcmp (var, "deny-direct"))
		493	node->deny_direct.push_back (strdup (val));
		494	else if (!strcmp (var, "max-ttl"))
		495	node->max_ttl = atof (val);
		496	else if (!strcmp (var, "max-queue"))
		497	node->max_queue = atoi (val);
		498
		499	// unknown or misplaced
		500	else
		501	return _("unknown configuration directive - ignored");
		502
		503	return 0;
		504	}
		505
		506	void
		507	conf_node::finalise ()
		508	{
		509	if (max_queue < 1)
		510	{
		511	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		512	max_queue = 1;
		513	}
		514
		515	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		516	{
		517	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		518	connectmode = C_ALWAYS;
		519	}
		520	}
		521
		522	void
		523	configuration_parser::parse_file (const char *fname)
		524	{
		525	if (FILE *f = fopen (fname, "r"))
		526	{
144	char line[16384];	527	char line [2048];
145	int lineno = 0;	528	int lineno = 0;
146	char var, val;
147	conf_node *node = &default_node;
148		529
149	while (fgets (line, sizeof (line), f))	530	while (fgets (line, sizeof (line), f))
150	{	531	{
151	lineno++;	532	lineno++;
152		533
153	{	534	const char *warn = parse_line (line);
154	char *end = line + strlen (line);
155		535
156	while (*end < ' ' && end >= line)	536	if (warn)
157	end--;	537	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
158
159	*++end = 0;
160	}
161
162	char *tok = line;
163
164	retry:
165	var = strtok (tok, "\t =");
166	tok = 0;
167
168	if (!var \|\| !var[0])
169	continue; /* no tokens on this line */
170
171	if (var[0] == '#')
172	continue; /* comment: ignore */
173
174	val = strtok (NULL, "\t\n\r =");
175
176	if (!val \|\| val[0] == '#')
177	{
178	slog (L_WARN,
179	_("no value for variable `%s', at '%s' line %d"),
180	var, fname, lineno);
181	break;
182	}
183
184	if (!strcmp (var, "on"))
185	{
186	if (!::thisnode
187	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
188	\|\| !strcmp (val, ::thisnode))
189	goto retry;
190
191	continue;
192	}
193
194	// truly global
195	if (!strcmp (var, "loglevel"))
196	{
197	loglevel l = string_to_loglevel (val);
198
199	if (l != L_NONE)
200	llevel = l;
201	else
202	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
203	}
204	else if (!strcmp (var, "ip-proto"))
205	ip_proto = atoi (val);
206
207	// per config
208	else if (!strcmp (var, "node"))
209	{
210	default_node.id++;
211
212	node = new conf_node (default_node);
213
214	nodes.push_back (node);
215
216	node->nodename = strdup (val);
217
218	{
219	char *fname;
220	FILE *f;
221
222	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
223
224	f = fopen (fname, "r");
225	if (f)
226	{
227	node->rsa_key = RSA_new ();
228
229	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
230	{
231	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
232	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
233	exit (1);
234	}
235
236	RSA_blinding_on (node->rsa_key, 0);
237
238	fclose (f);
239	}
240	else
241	{
242	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
243
244	if (need_keys)
245	exit (1);
246	}
247
248	free (fname);
249	}
250
251	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
252	thisnode = node;
253	}
254	else if (!strcmp (var, "private-key"))
255	prikeyfile = strdup (val);
256	else if (!strcmp (var, "ifpersist"))
257	{
258	parse_bool (ifpersist, "ifpersist", true, false);
259	}
260	else if (!strcmp (var, "ifname"))
261	ifname = strdup (val);
262	else if (!strcmp (var, "rekey"))
263	rekey = atoi (val);
264	else if (!strcmp (var, "keepalive"))
265	keepalive = atoi (val);
266	else if (!strcmp (var, "mtu"))
267	mtu = atoi (val);
268	else if (!strcmp (var, "if-up"))
269	script_if_up = strdup (val);
270	else if (!strcmp (var, "node-up"))
271	script_node_up = strdup (val);
272	else if (!strcmp (var, "node-down"))
273	script_node_down = strdup (val);
274
275	/* node-specific, non-defaultable */
276	else if (node != &default_node && !strcmp (var, "hostname"))
277	{
278	free (node->hostname);
279	node->hostname = strdup (val);
280	}
281
282	/* node-specific, defaultable */
283	else if (!strcmp (var, "udp-port"))
284	node->udp_port = atoi (val);
285	else if (!strcmp (var, "router-priority"))
286	node->routerprio = atoi (val);
287	else if (!strcmp (var, "connect"))
288	{
289	if (!strcmp (val, "ondemand"))
290	node->connectmode = conf_node::C_ONDEMAND;
291	else if (!strcmp (val, "never"))
292	node->connectmode = conf_node::C_NEVER;
293	else if (!strcmp (val, "always"))
294	node->connectmode = conf_node::C_ALWAYS;
295	else if (!strcmp (val, "disabled"))
296	node->connectmode = conf_node::C_DISABLED;
297	else
298	slog (L_WARN,
299	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
300	var, fname, lineno);
301	}
302	else if (!strcmp (var, "inherit-tos"))
303	{
304	parse_bool (node->inherit_tos, "inherit-tos", true, false);
305	}
306	else if (!strcmp (var, "compress"))
307	{
308	parse_bool (node->compress, "compress", true, false);
309	}
310	// all these bool options really really cost a lot of executable size!
311	else if (!strcmp (var, "enable-udp"))
312	{
313	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
314	}
315	else if (!strcmp (var, "enable-rawip"))
316	{
317	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
318	}
319
320	// unknown or misplaced
321	else
322	{
323	slog (L_WARN,
324	_("unknown or misplaced variable `%s', at '%s' line %d"),
325	var, fname, lineno);
326	}
327	}	538	}
328		539
329	fclose (f);	540	fclose (f);
330	}	541	}
331	else	542	else
332	{	543	{
333	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	544	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
334	exit (1);	545	exit (EXIT_FAILURE);
335	}	546	}
		547	}
336		548
		549	configuration_parser::configuration_parser (configuration &conf,
		550	bool need_keys,
		551	int argc,
		552	char **argv)
		553	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		554	{
		555	char *fname;
		556
		557	conf.clear ();
		558	node = &conf.default_node;
		559
		560	asprintf (&fname, "%s/gvpe.conf", confbase);
		561	parse_file (fname);
337	free (fname);	562	free (fname);
338		563
339	fname = config_filename (prikeyfile, "hostkey");	564	fname = conf.config_filename (conf.prikeyfile, "hostkey");
340		565
341	f = fopen (fname, "r");	566	if (FILE *f = fopen (fname, "r"))
342	if (f)
343	{	567	{
344	rsa_key = RSA_new ();	568	conf.rsa_key = RSA_new ();
345		569
346	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	570	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
347	{	571	{
348	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	572	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
349	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	573	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
350	exit (1);	574	exit (EXIT_FAILURE);
351	}	575	}
352		576
353	RSA_blinding_on (rsa_key, 0);	577	require (RSA_blinding_on (conf.rsa_key, 0));
354		578
355	fclose (f);	579	fclose (f);
356	}	580	}
357	else	581	else
358	{	582	{
359	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
360
361	if (need_keys)	583	if (need_keys)
362	exit (1);	584	{
		585	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		586	exit (EXIT_FAILURE);
		587	}
363	}	588	}
364		589
365	free (fname);	590	free (fname);
366	}
367		591
		592	fname = conf.config_filename (conf.pidfilename);
		593	free (conf.pidfilename); conf.pidfilename = fname;
		594
		595	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		596	{
		597	conf_node node = i;
		598	char *fname;
		599	FILE *f;
		600
		601	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		602
		603	f = fopen (fname, "r");
		604	if (f)
		605	{
		606	node->rsa_key = RSA_new ();
		607
		608	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		609	{
		610	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		611	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		612	exit (EXIT_FAILURE);
		613	}
		614
		615	require (RSA_blinding_on (node->rsa_key, 0));
		616
		617	fclose (f);
		618	}
		619	else
		620	{
		621	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		622
		623	if (need_keys)
		624	exit (EXIT_FAILURE);
		625	}
		626
		627	free (fname);
		628
		629	(*i)->finalise ();
		630	}
		631
		632	if (::thisnode)
		633	{
		634	conf.thisnode = conf.find_node (::thisnode);
		635
		636	if (need_keys)
		637	{
		638	if (!conf.thisnode)
		639	{
		640	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		641	exit (EXIT_FAILURE);
		642	}
		643
		644	if (conf.rsa_key && conf.thisnode->rsa_key)
		645	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		646	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		647	{
		648	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		649	exit (EXIT_FAILURE);
		650	}
		651	}
		652	}
		653
		654	parse_argv ();
		655	}
		656
		657	void
		658	configuration_parser::parse_argv ()
		659	{
		660	for (int i = 0; i < argc; ++i)
		661	{
		662	char *v = argv [i];
		663
		664	if (!*v)
		665	continue;
		666
		667	char *enode = v;
		668
		669	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		670	enode++;
		671
		672	if (*enode != '.')
		673	enode = 0;
		674
		675	if (enode)
		676	{
		677	char *val = strdup (v);
		678	val [enode - v] = 0;
		679	node = conf.find_node (val);
		680	free (val);
		681
		682	if (!node)
		683	{
		684	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		685	continue;
		686	}
		687	}
		688	else
		689	node = &conf.default_node;
		690
		691	const char *warn = parse_line (enode ? enode + 1 : v);
		692
		693	if (warn)
		694	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		695	}
		696	}
		697
		698	char *
368	char configuration::config_filename (const char name, const char *dflt)	699	configuration::config_filename (const char name, const char dflt)
369	{	700	{
370	char *fname;	701	char *fname;
371		702
372	asprintf (&fname, name ? name : dflt, ::thisnode);	703	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
373		704
374	if (!ABSOLUTE_PATH (fname))	705	if (!ABSOLUTE_PATH (fname))
375	{	706	{
376	char *rname = fname;	707	char *rname = fname;
377	asprintf (&fname, "%s/%s", confbase, rname);	708	asprintf (&fname, "%s/%s", confbase, rname);
378	free (rname);	709	free (rname);
379	}	710	}
380		711
381	return fname;	712	return fname;
		713	}
		714
		715	void
		716	conf_node::print ()
		717	{
		718	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		719	id,
		720	id >> 8, id & 0xff,
		721	compress ? 'Y' : 'N',
		722	connectmode == C_ONDEMAND ? "ondemand"
		723	: connectmode == C_NEVER ? "never"
		724	: connectmode == C_ALWAYS ? "always"
		725	: connectmode == C_DISABLED ? "disabled"
		726	: "",
		727	nodename,
		728	protocols,
		729	hostname ? hostname : "",
		730	hostname ? ":" : "",
		731	hostname ? udp_port : 0
		732	);
382	}	733	}
383		734
384	void	735	void
385	configuration::print ()	736	configuration::print ()
386	{	737	{
…		…
390	printf (_("MTU: %d\n"), mtu);	741	printf (_("MTU: %d\n"), mtu);
391	printf (_("rekeying interval: %d\n"), rekey);	742	printf (_("rekeying interval: %d\n"), rekey);
392	printf (_("keepalive interval: %d\n"), keepalive);	743	printf (_("keepalive interval: %d\n"), keepalive);
393	printf (_("interface: %s\n"), ifname);	744	printf (_("interface: %s\n"), ifname);
394	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	745	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
395	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	746	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
396	printf ("\n");	747	printf ("\n");
397		748
398	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	749	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
399	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	750	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
400		751
401	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	752	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
402	(*i)->print ();	753	(*i)->print ();
403		754
404	printf ("\n");	755	printf ("\n");
405	}	756	}
406		757
407	void	758	configuration::configuration ()
408	conf_node::print ()
409	{	759	{
410	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	760	asprintf (&confbase, "%s/gvpe", CONFDIR);
411	id,
412	id >> 8, id & 0xff,
413	compress ? 'Y' : 'N',
414	connectmode == C_ONDEMAND ? "ondemand" :
415	connectmode == C_NEVER ? "never" :
416	connectmode == C_ALWAYS ? "always" : "",
417	nodename,
418	hostname ? hostname : "",
419	hostname ? ":" : "",
420	hostname ? udp_port : 0
421	);
422	}
423		761
		762	init ();
		763	}
		764
		765	configuration::~configuration ()
		766	{
		767	cleanup ();
		768	}
		769

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing gvpe/src/conf.C (file contents): Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs. Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC