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

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 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 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
		67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59	if (protset & PROT_UDPv4) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60	if (protset & PROT_TCPv4) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		71
62	return 0;	72	return 0;
63	}	73	}
64		74
		75	const char *
65	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
66	{	77	{
67	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
		79	if (protocol & PROT_ICMPv4) return "icmp";
68	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";
69		83
70	return "<unknown>";	84	return "<unknown>";
71	}	85	}
72		86
73	configuration::configuration ()	87	static bool
		88	match_list (const vector<const char > &list, const char str)
74	{	89	{
75	init ();	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
76	}	91	if ((i)[0] == '' && !(*i)[1])
		92	return true;
		93	else if (!strcmp (*i, str))
		94	return true;
77		95
78	configuration::~configuration ()	96	return false;
79	{
80	cleanup ();
81	}	97	}
82		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
83	void configuration::init ()	130	configuration::init ()
84	{	131	{
85	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
86		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
87	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
88	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
89	llevel = L_INFO;	138	llevel = L_INFO;
90	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
91		143
92	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
93	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
94	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
95	default_node.compress = true;	147	default_node.compress = true;
96	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
97	}	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 ("");
98		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
99	void configuration::cleanup()	172	configuration::cleanup ()
100	{	173	{
101	if (rsa_key)	174	if (rsa_key)
102	RSA_free (rsa_key);	175	RSA_free (rsa_key);
103		176
104	free (ifname);
105
106	rsa_key = 0;	177	rsa_key = 0;
107	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;
108	}	194	}
109		195
110	void	196	void
111	configuration::clear_config ()	197	configuration::clear ()
112	{	198	{
113	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)
114	delete *i;	200	delete *i;
115		201
116	nodes.clear ();	202	nodes.clear ();
117		203
118	cleanup ();	204	cleanup ();
119	init ();	205	init ();
120	}	206	}
121		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
122	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
123	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
124	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
125	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
126	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
127	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
128	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
129	else \	231	else \
130	slog (L_WARN, \
131	_("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"); \
132	name, var, fname, lineno);	233	} while (0)
133		234
134	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
135	{	237	{
136	char *fname;	238	{
137	FILE *f;	239	char *end = line + strlen (line);
138		240
139	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
140		243
141	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
142	f = fopen (fname, "r");	245	}
143		246
144	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;
145	{	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, "ip-proto"))
		292	conf.ip_proto = atoi (val);
		293	else if (!strcmp (var, "icmp-type"))
		294	{
		295	#if ENABLE_ICMP
		296	conf.icmp_type = atoi (val);
		297	#endif
		298	}
		299	else if (!strcmp (var, "chuser"))
		300	{
		301	struct passwd *pw = getpwnam (val);
		302	if (!pw)
		303	return _("user specified for chuser not found");
		304
		305	conf.change_uid = pw->pw_uid;
		306	conf.change_gid = pw->pw_gid;
		307	}
		308	else if (!strcmp (var, "chuid"))
		309	conf.change_uid = atoi (val);
		310	else if (!strcmp (var, "chgid"))
		311	conf.change_gid = atoi (val);
		312	else if (!strcmp (var, "chroot"))
		313	free (conf.change_root), conf.change_root = strdup (val);
		314
		315	// per node
		316	else if (!strcmp (var, "node"))
		317	{
		318	node = conf.find_node (val);
		319
		320	if (!node)
		321	{
		322	conf.default_node.id++;
		323	node = new conf_node (conf.default_node);
		324	conf.nodes.push_back (node);
		325	node->nodename = strdup (val);
		326	}
		327	}
		328	else if (!strcmp (var, "private-key"))
		329	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		330	else if (!strcmp (var, "ifpersist"))
		331	parse_bool (conf.ifpersist, "ifpersist", true, false);
		332	else if (!strcmp (var, "ifname"))
		333	free (conf.ifname), conf.ifname = strdup (val);
		334	else if (!strcmp (var, "rekey"))
		335	conf.rekey = atoi (val);
		336	else if (!strcmp (var, "keepalive"))
		337	conf.keepalive = atoi (val);
		338	else if (!strcmp (var, "mtu"))
		339	conf.mtu = atoi (val);
		340	else if (!strcmp (var, "nfmark"))
		341	conf.nfmark = atoi (val);
		342	else if (!strcmp (var, "seed-device"))
		343	free (conf.seed_dev), conf.seed_dev = strdup (val);
		344	else if (!strcmp (var, "seed-interval"))
		345	conf.reseed = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-case-preserving"))
		393	{
		394	#if ENABLE_DNS
		395	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-host"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	free (conf.proxy_host), conf.proxy_host = strdup (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-port"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_port = atoi (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-auth"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		414	#endif
		415	}
		416
		417	/* node-specific, non-defaultable */
		418	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		419	free (node->hostname), node->hostname = strdup (val);
		420
		421	/* node-specific, defaultable */
		422	else if (!strcmp (var, "udp-port"))
		423	node->udp_port = atoi (val);
		424	else if (!strcmp (var, "tcp-port"))
		425	node->tcp_port = atoi (val);
		426	else if (!strcmp (var, "dns-hostname"))
		427	{
		428	#if ENABLE_DNS
		429	free (node->dns_hostname), node->dns_hostname = strdup (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-port"))
		433	{
		434	#if ENABLE_DNS
		435	node->dns_port = atoi (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-domain"))
		439	{
		440	#if ENABLE_DNS
		441	free (node->domain), node->domain = strdup (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "if-up-data"))
		445	free (node->if_up_data), node->if_up_data = strdup (val);
		446	else if (!strcmp (var, "router-priority"))
		447	node->routerprio = atoi (val);
		448	else if (!strcmp (var, "max-retry"))
		449	node->max_retry = atoi (val);
		450	else if (!strcmp (var, "connect"))
		451	{
		452	if (!strcmp (val, "ondemand"))
		453	node->connectmode = conf_node::C_ONDEMAND;
		454	else if (!strcmp (val, "never"))
		455	node->connectmode = conf_node::C_NEVER;
		456	else if (!strcmp (val, "always"))
		457	node->connectmode = conf_node::C_ALWAYS;
		458	else if (!strcmp (val, "disabled"))
		459	node->connectmode = conf_node::C_DISABLED;
		460	else
		461	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		462	}
		463	else if (!strcmp (var, "inherit-tos"))
		464	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		465	else if (!strcmp (var, "compress"))
		466	parse_bool (node->compress, "compress", true, false);
		467	// all these bool options really really cost a lot of executable size!
		468	else if (!strcmp (var, "enable-tcp"))
		469	{
		470	#if ENABLE_TCP
		471	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-icmp"))
		475	{
		476	#if ENABLE_ICMP
		477	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-dns"))
		481	{
		482	#if ENABLE_DNS
		483	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-udp"))
		487	{
		488	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		489	}
		490	else if (!strcmp (var, "enable-rawip"))
		491	{
		492	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		493	}
		494	else if (!strcmp (var, "allow-direct"))
		495	node->allow_direct.push_back (strdup (val));
		496	else if (!strcmp (var, "deny-direct"))
		497	node->deny_direct.push_back (strdup (val));
		498	else if (!strcmp (var, "max-ttl"))
		499	node->max_ttl = atof (val);
		500	else if (!strcmp (var, "max-queue"))
		501	node->max_queue = atoi (val);
		502
		503	// unknown or misplaced
		504	else
		505	return _("unknown configuration directive - ignored");
		506
		507	return 0;
		508	}
		509
		510	void
		511	conf_node::finalise ()
		512	{
		513	if (max_queue < 1)
		514	{
		515	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		516	max_queue = 1;
		517	}
		518
		519	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		520	{
		521	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		522	connectmode = C_ALWAYS;
		523	}
		524	}
		525
		526	void
		527	configuration_parser::parse_file (const char *fname)
		528	{
		529	if (FILE *f = fopen (fname, "r"))
		530	{
146	char line[16384];	531	char line [2048];
147	int lineno = 0;	532	int lineno = 0;
148	char var, val;
149	conf_node *node = &default_node;
150		533
151	while (fgets (line, sizeof (line), f))	534	while (fgets (line, sizeof (line), f))
152	{	535	{
153	lineno++;	536	lineno++;
154		537
155	{	538	const char *warn = parse_line (line);
156	char *end = line + strlen (line);
157		539
158	while (*end < ' ' && end >= line)	540	if (warn)
159	end--;	541	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
160
161	*++end = 0;
162	}
163
164	char *tok = line;
165
166	retry:
167	var = strtok (tok, "\t =");
168	tok = 0;
169
170	if (!var \|\| !var[0])
171	continue; /* no tokens on this line */
172
173	if (var[0] == '#')
174	continue; /* comment: ignore */
175
176	val = strtok (NULL, "\t\n\r =");
177
178	if (!val \|\| val[0] == '#')
179	{
180	slog (L_WARN,
181	_("no value for variable `%s', at '%s' line %d"),
182	var, fname, lineno);
183	break;
184	}
185
186	if (!strcmp (var, "on"))
187	{
188	if (!::thisnode
189	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
190	\|\| !strcmp (val, ::thisnode))
191	goto retry;
192
193	continue;
194	}
195
196	// truly global
197	if (!strcmp (var, "loglevel"))
198	{
199	loglevel l = string_to_loglevel (val);
200
201	if (l != L_NONE)
202	llevel = l;
203	else
204	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
205	}
206	else if (!strcmp (var, "ip-proto"))
207	ip_proto = atoi (val);
208
209	// per config
210	else if (!strcmp (var, "node"))
211	{
212	default_node.id++;
213
214	node = new conf_node (default_node);
215
216	nodes.push_back (node);
217
218	node->nodename = strdup (val);
219
220	{
221	char *fname;
222	FILE *f;
223
224	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
225
226	f = fopen (fname, "r");
227	if (f)
228	{
229	node->rsa_key = RSA_new ();
230
231	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
232	{
233	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
234	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
235	exit (1);
236	}
237
238	RSA_blinding_on (node->rsa_key, 0);
239
240	fclose (f);
241	}
242	else
243	{
244	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
245
246	if (need_keys)
247	exit (1);
248	}
249
250	free (fname);
251	}
252
253	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
254	thisnode = node;
255	}
256	else if (!strcmp (var, "private-key"))
257	prikeyfile = strdup (val);
258	else if (!strcmp (var, "ifpersist"))
259	{
260	parse_bool (ifpersist, "ifpersist", true, false);
261	}
262	else if (!strcmp (var, "ifname"))
263	ifname = strdup (val);
264	else if (!strcmp (var, "rekey"))
265	rekey = atoi (val);
266	else if (!strcmp (var, "keepalive"))
267	keepalive = atoi (val);
268	else if (!strcmp (var, "mtu"))
269	mtu = atoi (val);
270	else if (!strcmp (var, "if-up"))
271	script_if_up = strdup (val);
272	else if (!strcmp (var, "node-up"))
273	script_node_up = strdup (val);
274	else if (!strcmp (var, "node-down"))
275	script_node_down = strdup (val);
276
277	/* node-specific, non-defaultable */
278	else if (node != &default_node && !strcmp (var, "hostname"))
279	{
280	free (node->hostname);
281	node->hostname = strdup (val);
282	}
283
284	/* node-specific, defaultable */
285	else if (!strcmp (var, "udp-port"))
286	node->udp_port = atoi (val);
287	else if (!strcmp (var, "tcp-port"))
288	node->tcp_port = atoi (val);
289	else if (!strcmp (var, "router-priority"))
290	node->routerprio = atoi (val);
291	else if (!strcmp (var, "connect"))
292	{
293	if (!strcmp (val, "ondemand"))
294	node->connectmode = conf_node::C_ONDEMAND;
295	else if (!strcmp (val, "never"))
296	node->connectmode = conf_node::C_NEVER;
297	else if (!strcmp (val, "always"))
298	node->connectmode = conf_node::C_ALWAYS;
299	else if (!strcmp (val, "disabled"))
300	node->connectmode = conf_node::C_DISABLED;
301	else
302	slog (L_WARN,
303	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
304	var, fname, lineno);
305	}
306	else if (!strcmp (var, "inherit-tos"))
307	{
308	parse_bool (node->inherit_tos, "inherit-tos", true, false);
309	}
310	else if (!strcmp (var, "compress"))
311	{
312	parse_bool (node->compress, "compress", true, false);
313	}
314	// all these bool options really really cost a lot of executable size!
315	else if (!strcmp (var, "enable-tcp"))
316	{
317	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
318	}
319	else if (!strcmp (var, "enable-udp"))
320	{
321	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
322	}
323	else if (!strcmp (var, "enable-rawip"))
324	{
325	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
326	}
327
328	// unknown or misplaced
329	else
330	{
331	slog (L_WARN,
332	_("unknown or misplaced variable `%s', at '%s' line %d"),
333	var, fname, lineno);
334	}
335	}	542	}
336		543
337	fclose (f);	544	fclose (f);
338	}	545	}
339	else	546	else
340	{	547	{
341	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	548	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
342	exit (1);	549	exit (EXIT_FAILURE);
343	}	550	}
		551	}
344		552
		553	configuration_parser::configuration_parser (configuration &conf,
		554	bool need_keys,
		555	int argc,
		556	char **argv)
		557	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		558	{
		559	char *fname;
		560
		561	conf.clear ();
		562	node = &conf.default_node;
		563
		564	asprintf (&fname, "%s/gvpe.conf", confbase);
		565	parse_file (fname);
345	free (fname);	566	free (fname);
346		567
347	fname = config_filename (prikeyfile, "hostkey");	568	fname = conf.config_filename (conf.prikeyfile, "hostkey");
348		569
349	f = fopen (fname, "r");	570	if (FILE *f = fopen (fname, "r"))
350	if (f)
351	{	571	{
352	rsa_key = RSA_new ();	572	conf.rsa_key = RSA_new ();
353		573
354	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	574	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
355	{	575	{
356	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	576	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
357	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	577	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
358	exit (1);	578	exit (EXIT_FAILURE);
359	}	579	}
360		580
361	RSA_blinding_on (rsa_key, 0);	581	require (RSA_blinding_on (conf.rsa_key, 0));
362		582
363	fclose (f);	583	fclose (f);
364	}	584	}
365	else	585	else
366	{	586	{
367	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
368
369	if (need_keys)	587	if (need_keys)
370	exit (1);	588	{
		589	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		590	exit (EXIT_FAILURE);
		591	}
371	}	592	}
372		593
373	free (fname);	594	free (fname);
374	}
375		595
		596	fname = conf.config_filename (conf.pidfilename);
		597	free (conf.pidfilename); conf.pidfilename = fname;
		598
		599	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		600	{
		601	conf_node node = i;
		602	char *fname;
		603	FILE *f;
		604
		605	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		606
		607	f = fopen (fname, "r");
		608	if (f)
		609	{
		610	node->rsa_key = RSA_new ();
		611
		612	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		613	{
		614	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		615	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		616	exit (EXIT_FAILURE);
		617	}
		618
		619	require (RSA_blinding_on (node->rsa_key, 0));
		620
		621	fclose (f);
		622	}
		623	else
		624	{
		625	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		626
		627	if (need_keys)
		628	exit (EXIT_FAILURE);
		629	}
		630
		631	free (fname);
		632
		633	(*i)->finalise ();
		634	}
		635
		636	if (::thisnode)
		637	{
		638	conf.thisnode = conf.find_node (::thisnode);
		639
		640	if (need_keys)
		641	{
		642	if (!conf.thisnode)
		643	{
		644	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		645	exit (EXIT_FAILURE);
		646	}
		647
		648	if (conf.rsa_key && conf.thisnode->rsa_key)
		649	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		650	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		651	{
		652	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		653	exit (EXIT_FAILURE);
		654	}
		655	}
		656	}
		657
		658	parse_argv ();
		659	}
		660
		661	void
		662	configuration_parser::parse_argv ()
		663	{
		664	for (int i = 0; i < argc; ++i)
		665	{
		666	char *v = argv [i];
		667
		668	if (!*v)
		669	continue;
		670
		671	char *enode = v;
		672
		673	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		674	enode++;
		675
		676	if (*enode != '.')
		677	enode = 0;
		678
		679	if (enode)
		680	{
		681	char *val = strdup (v);
		682	val [enode - v] = 0;
		683	node = conf.find_node (val);
		684	free (val);
		685
		686	if (!node)
		687	{
		688	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		689	continue;
		690	}
		691	}
		692	else
		693	node = &conf.default_node;
		694
		695	const char *warn = parse_line (enode ? enode + 1 : v);
		696
		697	if (warn)
		698	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		699	}
		700	}
		701
		702	char *
376	char configuration::config_filename (const char name, const char *dflt)	703	configuration::config_filename (const char name, const char dflt)
377	{	704	{
378	char *fname;	705	char *fname;
379		706
380	asprintf (&fname, name ? name : dflt, ::thisnode);	707	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
381		708
382	if (!ABSOLUTE_PATH (fname))	709	if (!ABSOLUTE_PATH (fname))
383	{	710	{
384	char *rname = fname;	711	char *rname = fname;
385	asprintf (&fname, "%s/%s", confbase, rname);	712	asprintf (&fname, "%s/%s", confbase, rname);
386	free (rname);	713	free (rname);
387	}	714	}
388		715
389	return fname;	716	return fname;
		717	}
		718
		719	void
		720	conf_node::print ()
		721	{
		722	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		723	id,
		724	id >> 8, id & 0xff,
		725	compress ? 'Y' : 'N',
		726	connectmode == C_ONDEMAND ? "ondemand"
		727	: connectmode == C_NEVER ? "never"
		728	: connectmode == C_ALWAYS ? "always"
		729	: connectmode == C_DISABLED ? "disabled"
		730	: "",
		731	nodename,
		732	protocols,
		733	hostname ? hostname : "",
		734	hostname ? ":" : "",
		735	hostname ? udp_port : 0
		736	);
390	}	737	}
391		738
392	void	739	void
393	configuration::print ()	740	configuration::print ()
394	{	741	{
…		…
398	printf (_("MTU: %d\n"), mtu);	745	printf (_("MTU: %d\n"), mtu);
399	printf (_("rekeying interval: %d\n"), rekey);	746	printf (_("rekeying interval: %d\n"), rekey);
400	printf (_("keepalive interval: %d\n"), keepalive);	747	printf (_("keepalive interval: %d\n"), keepalive);
401	printf (_("interface: %s\n"), ifname);	748	printf (_("interface: %s\n"), ifname);
402	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	749	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
403	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	750	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
404	printf ("\n");	751	printf ("\n");
405		752
406	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	753	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
407	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	754	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
408		755
409	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	756	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
410	(*i)->print ();	757	(*i)->print ();
411		758
412	printf ("\n");	759	printf ("\n");
413	}	760	}
414		761
415	void	762	configuration::configuration ()
416	conf_node::print ()
417	{	763	{
418	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	764	asprintf (&confbase, "%s/gvpe", CONFDIR);
419	id,
420	id >> 8, id & 0xff,
421	compress ? 'Y' : 'N',
422	connectmode == C_ONDEMAND ? "ondemand" :
423	connectmode == C_NEVER ? "never" :
424	connectmode == C_ALWAYS ? "always" : "",
425	nodename,
426	hostname ? hostname : "",
427	hostname ? ":" : "",
428	hostname ? udp_port : 0
429	);
430	}
431		765
		766	init ();
		767	}
		768
		769	configuration::~configuration ()
		770	{
		771	cleanup ();
		772	}
		773

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Comparing gvpe/src/conf.C (file contents): Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs. Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC