[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 1.65 by root, Fri Oct 11 07:56:07 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	if (!strcmp (var, "global"))
		258	{
		259	node = &conf.default_node;
		260	return 0;
143	{	261	}
		262
		263	char *val = strtok (NULL, "\t\n\r =");
		264
		265	if (!val \|\| val[0] == '#')
		266	return _("no value given for variable, ignored");
		267
		268	else if (!strcmp (var, "on"))
		269	{
		270	if (::thisnode
		271	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		272	\|\| !strcmp (val, ::thisnode)))
		273	return parse_line (strtok (NULL, "\n\r"));
		274	}
		275
		276	else if (!strcmp (var, "include"))
		277	{
		278	char *fname = conf.config_filename (val);
		279	parse_file (fname);
		280	free (fname);
		281	}
		282
		283	// truly global
		284	else if (!strcmp (var, "loglevel"))
		285	{
		286	loglevel l = string_to_loglevel (val);
		287
		288	if (l == L_NONE)
		289	return _("unknown loglevel, ignored");
		290	}
		291	else if (!strcmp (var, "serial"))
		292	strncpy (conf.serial, val, sizeof (conf.serial));
		293	else if (!strcmp (var, "ip-proto"))
		294	conf.ip_proto = atoi (val);
		295	else if (!strcmp (var, "icmp-type"))
		296	{
		297	#if ENABLE_ICMP
		298	conf.icmp_type = atoi (val);
		299	#endif
		300	}
		301	else if (!strcmp (var, "chuser"))
		302	{
		303	struct passwd *pw = getpwnam (val);
		304	if (!pw)
		305	return _("user specified for chuser not found");
		306
		307	conf.change_uid = pw->pw_uid;
		308	conf.change_gid = pw->pw_gid;
		309	}
		310	else if (!strcmp (var, "chuid"))
		311	conf.change_uid = atoi (val);
		312	else if (!strcmp (var, "chgid"))
		313	conf.change_gid = atoi (val);
		314	else if (!strcmp (var, "chroot"))
		315	free (conf.change_root), conf.change_root = strdup (val);
		316
		317	// per node
		318	else if (!strcmp (var, "node"))
		319	{
		320	node = conf.find_node (val);
		321
		322	if (!node)
		323	{
		324	conf.default_node.id++;
		325	node = new conf_node (conf.default_node);
		326	conf.nodes.push_back (node);
		327	node->nodename = strdup (val);
		328	}
		329	}
		330	else if (!strcmp (var, "private-key"))
		331	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		332	else if (!strcmp (var, "ifpersist"))
		333	parse_bool (conf.ifpersist, "ifpersist", true, false);
		334	else if (!strcmp (var, "ifname"))
		335	free (conf.ifname), conf.ifname = strdup (val);
		336	else if (!strcmp (var, "rekey"))
		337	conf.rekey = atoi (val);
		338	else if (!strcmp (var, "keepalive"))
		339	conf.keepalive = atoi (val);
		340	else if (!strcmp (var, "mtu"))
		341	conf.mtu = atoi (val);
		342	else if (!strcmp (var, "nfmark"))
		343	conf.nfmark = atoi (val);
		344	else if (!strcmp (var, "seed-device"))
		345	free (conf.seed_dev), conf.seed_dev = strdup (val);
		346	else if (!strcmp (var, "seed-interval"))
		347	conf.reseed = atoi (val);
		348	else if (!strcmp (var, "if-up"))
		349	free (conf.script_if_up), conf.script_if_up = strdup (val);
		350	else if (!strcmp (var, "node-up"))
		351	free (conf.script_node_up), conf.script_node_up = strdup (val);
		352	else if (!strcmp (var, "node-change"))
		353	free (conf.script_node_change), conf.script_node_change = strdup (val);
		354	else if (!strcmp (var, "node-down"))
		355	free (conf.script_node_down), conf.script_node_down = strdup (val);
		356	else if (!strcmp (var, "pid-file"))
		357	free (conf.pidfilename), conf.pidfilename = strdup (val);
		358	else if (!strcmp (var, "dns-forw-host"))
		359	{
		360	#if ENABLE_DNS
		361	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		362	#endif
		363	}
		364	else if (!strcmp (var, "dns-forw-port"))
		365	{
		366	#if ENABLE_DNS
		367	conf.dns_forw_port = atoi (val);
		368	#endif
		369	}
		370	else if (!strcmp (var, "dns-timeout-factor"))
		371	{
		372	#if ENABLE_DNS
		373	conf.dns_timeout_factor = atof (val);
		374	#endif
		375	}
		376	else if (!strcmp (var, "dns-send-interval"))
		377	{
		378	#if ENABLE_DNS
		379	conf.dns_send_interval = atoi (val);
		380	#endif
		381	}
		382	else if (!strcmp (var, "dns-overlap-factor"))
		383	{
		384	#if ENABLE_DNS
		385	conf.dns_overlap_factor = atof (val);
		386	#endif
		387	}
		388	else if (!strcmp (var, "dns-max-outstanding"))
		389	{
		390	#if ENABLE_DNS
		391	conf.dns_max_outstanding = atoi (val);
		392	#endif
		393	}
		394	else if (!strcmp (var, "dns-case-preserving"))
		395	{
		396	#if ENABLE_DNS
		397	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		398	#endif
		399	}
		400	else if (!strcmp (var, "http-proxy-host"))
		401	{
		402	#if ENABLE_HTTP_PROXY
		403	free (conf.proxy_host), conf.proxy_host = strdup (val);
		404	#endif
		405	}
		406	else if (!strcmp (var, "http-proxy-port"))
		407	{
		408	#if ENABLE_HTTP_PROXY
		409	conf.proxy_port = atoi (val);
		410	#endif
		411	}
		412	else if (!strcmp (var, "http-proxy-auth"))
		413	{
		414	#if ENABLE_HTTP_PROXY
		415	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		416	#endif
		417	}
		418
		419	/* node-specific, non-defaultable */
		420	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		421	free (node->hostname), node->hostname = strdup (val);
		422
		423	/* node-specific, defaultable */
		424	else if (!strcmp (var, "udp-port"))
		425	node->udp_port = atoi (val);
		426	else if (!strcmp (var, "tcp-port"))
		427	node->tcp_port = atoi (val);
		428	else if (!strcmp (var, "dns-hostname"))
		429	{
		430	#if ENABLE_DNS
		431	free (node->dns_hostname), node->dns_hostname = strdup (val);
		432	#endif
		433	}
		434	else if (!strcmp (var, "dns-port"))
		435	{
		436	#if ENABLE_DNS
		437	node->dns_port = atoi (val);
		438	#endif
		439	}
		440	else if (!strcmp (var, "dns-domain"))
		441	{
		442	#if ENABLE_DNS
		443	free (node->domain), node->domain = strdup (val);
		444	#endif
		445	}
		446	else if (!strcmp (var, "if-up-data"))
		447	free (node->if_up_data), node->if_up_data = strdup (val);
		448	else if (!strcmp (var, "router-priority"))
		449	node->routerprio = atoi (val);
		450	else if (!strcmp (var, "max-retry"))
		451	node->max_retry = atoi (val);
		452	else if (!strcmp (var, "connect"))
		453	{
		454	if (!strcmp (val, "ondemand"))
		455	node->connectmode = conf_node::C_ONDEMAND;
		456	else if (!strcmp (val, "never"))
		457	node->connectmode = conf_node::C_NEVER;
		458	else if (!strcmp (val, "always"))
		459	node->connectmode = conf_node::C_ALWAYS;
		460	else if (!strcmp (val, "disabled"))
		461	node->connectmode = conf_node::C_DISABLED;
		462	else
		463	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		464	}
		465	else if (!strcmp (var, "inherit-tos"))
		466	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		467	else if (!strcmp (var, "compress"))
		468	parse_bool (node->compress, "compress", true, false);
		469	else if (!strcmp (var, "low-power"))
		470	parse_bool (node->low_power, "low-power", true, false);
		471	// all these bool options really really cost a lot of executable size!
		472	else if (!strcmp (var, "enable-tcp"))
		473	{
		474	#if ENABLE_TCP
		475	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		476	#endif
		477	}
		478	else if (!strcmp (var, "enable-icmp"))
		479	{
		480	#if ENABLE_ICMP
		481	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		482	#endif
		483	}
		484	else if (!strcmp (var, "enable-dns"))
		485	{
		486	#if ENABLE_DNS
		487	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		488	#endif
		489	}
		490	else if (!strcmp (var, "enable-udp"))
		491	{
		492	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		493	}
		494	else if (!strcmp (var, "enable-rawip"))
		495	{
		496	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		497	}
		498	else if (!strcmp (var, "allow-direct"))
		499	node->allow_direct.push_back (strdup (val));
		500	else if (!strcmp (var, "deny-direct"))
		501	node->deny_direct.push_back (strdup (val));
		502	else if (!strcmp (var, "max-ttl"))
		503	node->max_ttl = atof (val);
		504	else if (!strcmp (var, "max-queue"))
		505	node->max_queue = atoi (val);
		506
		507	// unknown or misplaced
		508	else
		509	return _("unknown configuration directive - ignored");
		510
		511	return 0;
		512	}
		513
		514	void
		515	conf_node::finalise ()
		516	{
		517	if (max_queue < 1)
		518	{
		519	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		520	max_queue = 1;
		521	}
		522
		523	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		524	{
		525	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		526	connectmode = C_ALWAYS;
		527	}
		528	}
		529
		530	void
		531	configuration_parser::parse_file (const char *fname)
		532	{
		533	if (FILE *f = fopen (fname, "r"))
		534	{
144	char line[16384];	535	char line [2048];
145	int lineno = 0;	536	int lineno = 0;
146	char var, val;
147	conf_node *node = &default_node;
148		537
149	while (fgets (line, sizeof (line), f))	538	while (fgets (line, sizeof (line), f))
150	{	539	{
151	lineno++;	540	lineno++;
152		541
153	{	542	const char *warn = parse_line (line);
154	char *end = line + strlen (line);
155		543
156	while (*end < ' ' && end >= line)	544	if (warn)
157	end--;	545	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	}	546	}
328		547
329	fclose (f);	548	fclose (f);
330	}	549	}
331	else	550	else
332	{	551	{
333	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	552	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
334	exit (1);	553	exit (EXIT_FAILURE);
335	}	554	}
		555	}
336		556
		557	configuration_parser::configuration_parser (configuration &conf,
		558	bool need_keys,
		559	int argc,
		560	char **argv)
		561	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		562	{
		563	char *fname;
		564
		565	conf.clear ();
		566	node = &conf.default_node;
		567
		568	asprintf (&fname, "%s/gvpe.conf", confbase);
		569	parse_file (fname);
337	free (fname);	570	free (fname);
338		571
339	fname = config_filename (prikeyfile, "hostkey");	572	fname = conf.config_filename (conf.prikeyfile, "hostkey");
340		573
341	f = fopen (fname, "r");	574	if (FILE *f = fopen (fname, "r"))
342	if (f)
343	{	575	{
344	rsa_key = RSA_new ();	576	conf.rsa_key = RSA_new ();
345		577
346	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	578	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
347	{	579	{
348	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	580	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));	581	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
350	exit (1);	582	exit (EXIT_FAILURE);
351	}	583	}
352		584
353	RSA_blinding_on (rsa_key, 0);	585	require (RSA_blinding_on (conf.rsa_key, 0));
354		586
355	fclose (f);	587	fclose (f);
356	}	588	}
357	else	589	else
358	{	590	{
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)	591	if (need_keys)
362	exit (1);	592	{
		593	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		594	exit (EXIT_FAILURE);
		595	}
363	}	596	}
364		597
365	free (fname);	598	free (fname);
366	}
367		599
		600	fname = conf.config_filename (conf.pidfilename);
		601	free (conf.pidfilename); conf.pidfilename = fname;
		602
		603	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		604	{
		605	conf_node node = i;
		606	char *fname;
		607	FILE *f;
		608
		609	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		610
		611	f = fopen (fname, "r");
		612	if (f)
		613	{
		614	node->rsa_key = RSA_new ();
		615
		616	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		617	{
		618	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		619	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		620	exit (EXIT_FAILURE);
		621	}
		622
		623	require (RSA_blinding_on (node->rsa_key, 0));
		624
		625	fclose (f);
		626	}
		627	else
		628	{
		629	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		630
		631	if (need_keys)
		632	exit (EXIT_FAILURE);
		633	}
		634
		635	free (fname);
		636
		637	(*i)->finalise ();
		638	}
		639
		640	if (::thisnode)
		641	{
		642	conf.thisnode = conf.find_node (::thisnode);
		643
		644	if (need_keys)
		645	{
		646	if (!conf.thisnode)
		647	{
		648	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		649	exit (EXIT_FAILURE);
		650	}
		651
		652	if (conf.rsa_key && conf.thisnode->rsa_key)
		653	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		654	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		655	{
		656	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		657	exit (EXIT_FAILURE);
		658	}
		659	}
		660	}
		661
		662	parse_argv ();
		663	}
		664
		665	void
		666	configuration_parser::parse_argv ()
		667	{
		668	for (int i = 0; i < argc; ++i)
		669	{
		670	char *v = argv [i];
		671
		672	if (!*v)
		673	continue;
		674
		675	char *enode = v;
		676
		677	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		678	enode++;
		679
		680	if (*enode != '.')
		681	enode = 0;
		682
		683	if (enode)
		684	{
		685	char *val = strdup (v);
		686	val [enode - v] = 0;
		687	node = conf.find_node (val);
		688	free (val);
		689
		690	if (!node)
		691	{
		692	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		693	continue;
		694	}
		695	}
		696	else
		697	node = &conf.default_node;
		698
		699	const char *warn = parse_line (enode ? enode + 1 : v);
		700
		701	if (warn)
		702	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		703	}
		704	}
		705
		706	char *
368	char configuration::config_filename (const char name, const char *dflt)	707	configuration::config_filename (const char name, const char dflt)
369	{	708	{
370	char *fname;	709	char *fname;
371		710
372	asprintf (&fname, name ? name : dflt, ::thisnode);	711	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
373		712
374	if (!ABSOLUTE_PATH (fname))	713	if (!ABSOLUTE_PATH (fname))
375	{	714	{
376	char *rname = fname;	715	char *rname = fname;
377	asprintf (&fname, "%s/%s", confbase, rname);	716	asprintf (&fname, "%s/%s", confbase, rname);
378	free (rname);	717	free (rname);
379	}	718	}
380		719
381	return fname;	720	return fname;
		721	}
		722
		723	void
		724	conf_node::print ()
		725	{
		726	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		727	id,
		728	id >> 8, id & 0xff,
		729	compress ? 'Y' : 'N',
		730	connectmode == C_ONDEMAND ? "ondemand"
		731	: connectmode == C_NEVER ? "never"
		732	: connectmode == C_ALWAYS ? "always"
		733	: connectmode == C_DISABLED ? "disabled"
		734	: "",
		735	nodename,
		736	protocols,
		737	hostname ? hostname : "",
		738	hostname ? ":" : "",
		739	hostname ? udp_port : 0
		740	);
382	}	741	}
383		742
384	void	743	void
385	configuration::print ()	744	configuration::print ()
386	{	745	{
…		…
390	printf (_("MTU: %d\n"), mtu);	749	printf (_("MTU: %d\n"), mtu);
391	printf (_("rekeying interval: %d\n"), rekey);	750	printf (_("rekeying interval: %d\n"), rekey);
392	printf (_("keepalive interval: %d\n"), keepalive);	751	printf (_("keepalive interval: %d\n"), keepalive);
393	printf (_("interface: %s\n"), ifname);	752	printf (_("interface: %s\n"), ifname);
394	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	753	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
395	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	754	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
396	printf ("\n");	755	printf ("\n");
397		756
398	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	757	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
399	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	758	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
400		759
401	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	760	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
402	(*i)->print ();	761	(*i)->print ();
403		762
404	printf ("\n");	763	printf ("\n");
405	}	764	}
406		765
407	void	766	configuration::configuration ()
408	conf_node::print ()
409	{	767	{
410	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	768	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		769
		770	init ();
		771	}
		772
		773	configuration::~configuration ()
		774	{
		775	cleanup ();
		776	}
		777

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Comparing gvpe/src/conf.C (file contents): Revision 1.7 by pcg, Fri Mar 28 16:21:09 2003 UTC vs. Revision 1.65 by root, Fri Oct 11 07:56:07 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 1.65 by root, Fri Oct 11 07:56:07 2013 UTC