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

Comparing gvpe/src/conf.C (file contents):
Revision 1.10 by pcg, Wed Apr 2 21:02:25 2003 UTC vs.
Revision 1.64 by root, Thu Jul 18 17:35:10 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";
69	if (protocol & PROT_TCPv4) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
70		83
71	return "<unknown>";	84	return "<unknown>";
72	}	85	}
73		86
74	configuration::configuration ()	87	static bool
		88	match_list (const vector<const char > &list, const char str)
75	{	89	{
76	init ();	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
77	}	91	if ((i)[0] == '' && !(*i)[1])
		92	return true;
		93	else if (!strcmp (*i, str))
		94	return true;
78		95
79	configuration::~configuration ()	96	return false;
80	{
81	cleanup ();
82	}	97	}
83		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
84	void configuration::init ()	130	configuration::init ()
85	{	131	{
86	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
87		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
88	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
89	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
90	llevel = L_INFO;	138	llevel = L_INFO;
91	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
92		143
93	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
94	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
95	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
96	default_node.compress = true;	147	default_node.compress = true;
97	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
98	}	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 ("");
99		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
100	void configuration::cleanup()	172	configuration::cleanup ()
101	{	173	{
102	if (rsa_key)	174	if (rsa_key)
103	RSA_free (rsa_key);	175	RSA_free (rsa_key);
104		176
105	free (ifname);
106
107	rsa_key = 0;	177	rsa_key = 0;
108	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;
109	}	194	}
110		195
111	void	196	void
112	configuration::clear_config ()	197	configuration::clear ()
113	{	198	{
114	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)
115	delete *i;	200	delete *i;
116		201
117	nodes.clear ();	202	nodes.clear ();
118		203
119	cleanup ();	204	cleanup ();
120	init ();	205	init ();
121	}	206	}
122		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
123	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
124	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
125	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
126	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
127	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
128	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
129	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
130	else \	231	else \
131	slog (L_WARN, \
132	_("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"); \
133	name, var, fname, lineno);	233	} while (0)
134		234
135	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
136	{	237	{
137	char *fname;	238	{
138	FILE *f;	239	char *end = line + strlen (line);
139		240
140	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
141		243
142	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
143	f = fopen (fname, "r");	245	}
144		246
145	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;
146	{	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	// all these bool options really really cost a lot of executable size!
		470	else if (!strcmp (var, "enable-tcp"))
		471	{
		472	#if ENABLE_TCP
		473	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		474	#endif
		475	}
		476	else if (!strcmp (var, "enable-icmp"))
		477	{
		478	#if ENABLE_ICMP
		479	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		480	#endif
		481	}
		482	else if (!strcmp (var, "enable-dns"))
		483	{
		484	#if ENABLE_DNS
		485	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		486	#endif
		487	}
		488	else if (!strcmp (var, "enable-udp"))
		489	{
		490	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		491	}
		492	else if (!strcmp (var, "enable-rawip"))
		493	{
		494	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		495	}
		496	else if (!strcmp (var, "allow-direct"))
		497	node->allow_direct.push_back (strdup (val));
		498	else if (!strcmp (var, "deny-direct"))
		499	node->deny_direct.push_back (strdup (val));
		500	else if (!strcmp (var, "max-ttl"))
		501	node->max_ttl = atof (val);
		502	else if (!strcmp (var, "max-queue"))
		503	node->max_queue = atoi (val);
		504
		505	// unknown or misplaced
		506	else
		507	return _("unknown configuration directive - ignored");
		508
		509	return 0;
		510	}
		511
		512	void
		513	conf_node::finalise ()
		514	{
		515	if (max_queue < 1)
		516	{
		517	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		518	max_queue = 1;
		519	}
		520
		521	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		522	{
		523	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		524	connectmode = C_ALWAYS;
		525	}
		526	}
		527
		528	void
		529	configuration_parser::parse_file (const char *fname)
		530	{
		531	if (FILE *f = fopen (fname, "r"))
		532	{
147	char line[16384];	533	char line [2048];
148	int lineno = 0;	534	int lineno = 0;
149	char var, val;
150	conf_node *node = &default_node;
151		535
152	while (fgets (line, sizeof (line), f))	536	while (fgets (line, sizeof (line), f))
153	{	537	{
154	lineno++;	538	lineno++;
155		539
156	{	540	const char *warn = parse_line (line);
157	char *end = line + strlen (line);
158		541
159	while (*end < ' ' && end >= line)	542	if (warn)
160	end--;	543	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
161
162	*++end = 0;
163	}
164
165	char *tok = line;
166
167	retry:
168	var = strtok (tok, "\t =");
169	tok = 0;
170
171	if (!var \|\| !var[0])
172	continue; /* no tokens on this line */
173
174	if (var[0] == '#')
175	continue; /* comment: ignore */
176
177	val = strtok (NULL, "\t\n\r =");
178
179	if (!val \|\| val[0] == '#')
180	{
181	slog (L_WARN,
182	_("no value for variable `%s', at '%s' line %d"),
183	var, fname, lineno);
184	break;
185	}
186
187	if (!strcmp (var, "on"))
188	{
189	if (!::thisnode
190	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
191	\|\| !strcmp (val, ::thisnode))
192	goto retry;
193
194	continue;
195	}
196
197	// truly global
198	if (!strcmp (var, "loglevel"))
199	{
200	loglevel l = string_to_loglevel (val);
201
202	if (l != L_NONE)
203	llevel = l;
204	else
205	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
206	}
207	else if (!strcmp (var, "ip-proto"))
208	ip_proto = atoi (val);
209
210	// per config
211	else if (!strcmp (var, "node"))
212	{
213	default_node.id++;
214
215	node = new conf_node (default_node);
216
217	nodes.push_back (node);
218
219	node->nodename = strdup (val);
220
221	{
222	char *fname;
223	FILE *f;
224
225	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
226
227	f = fopen (fname, "r");
228	if (f)
229	{
230	node->rsa_key = RSA_new ();
231
232	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
233	{
234	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
235	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
236	exit (1);
237	}
238
239	RSA_blinding_on (node->rsa_key, 0);
240
241	fclose (f);
242	}
243	else
244	{
245	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
246
247	if (need_keys)
248	exit (1);
249	}
250
251	free (fname);
252	}
253
254	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
255	thisnode = node;
256	}
257	else if (!strcmp (var, "private-key"))
258	prikeyfile = strdup (val);
259	else if (!strcmp (var, "ifpersist"))
260	{
261	parse_bool (ifpersist, "ifpersist", true, false);
262	}
263	else if (!strcmp (var, "ifname"))
264	ifname = strdup (val);
265	else if (!strcmp (var, "rekey"))
266	rekey = atoi (val);
267	else if (!strcmp (var, "keepalive"))
268	keepalive = atoi (val);
269	else if (!strcmp (var, "mtu"))
270	mtu = atoi (val);
271	else if (!strcmp (var, "if-up"))
272	script_if_up = strdup (val);
273	else if (!strcmp (var, "node-up"))
274	script_node_up = strdup (val);
275	else if (!strcmp (var, "node-down"))
276	script_node_down = strdup (val);
277
278	/* node-specific, non-defaultable */
279	else if (node != &default_node && !strcmp (var, "hostname"))
280	{
281	free (node->hostname);
282	node->hostname = strdup (val);
283	}
284
285	/* node-specific, defaultable */
286	else if (!strcmp (var, "udp-port"))
287	node->udp_port = atoi (val);
288	else if (!strcmp (var, "tcp-port"))
289	node->tcp_port = atoi (val);
290	else if (!strcmp (var, "router-priority"))
291	node->routerprio = atoi (val);
292	else if (!strcmp (var, "connect"))
293	{
294	if (!strcmp (val, "ondemand"))
295	node->connectmode = conf_node::C_ONDEMAND;
296	else if (!strcmp (val, "never"))
297	node->connectmode = conf_node::C_NEVER;
298	else if (!strcmp (val, "always"))
299	node->connectmode = conf_node::C_ALWAYS;
300	else if (!strcmp (val, "disabled"))
301	node->connectmode = conf_node::C_DISABLED;
302	else
303	slog (L_WARN,
304	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
305	var, fname, lineno);
306	}
307	else if (!strcmp (var, "inherit-tos"))
308	{
309	parse_bool (node->inherit_tos, "inherit-tos", true, false);
310	}
311	else if (!strcmp (var, "compress"))
312	{
313	parse_bool (node->compress, "compress", true, false);
314	}
315	// all these bool options really really cost a lot of executable size!
316	else if (!strcmp (var, "enable-tcp"))
317	{
318	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
319	}
320	else if (!strcmp (var, "enable-udp"))
321	{
322	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
323	}
324	else if (!strcmp (var, "enable-rawip"))
325	{
326	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
327	}
328
329	// unknown or misplaced
330	else
331	{
332	slog (L_WARN,
333	_("unknown or misplaced variable `%s', at '%s' line %d"),
334	var, fname, lineno);
335	}
336	}	544	}
337		545
338	fclose (f);	546	fclose (f);
339	}	547	}
340	else	548	else
341	{	549	{
342	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	550	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
343	exit (1);	551	exit (EXIT_FAILURE);
344	}	552	}
		553	}
345		554
		555	configuration_parser::configuration_parser (configuration &conf,
		556	bool need_keys,
		557	int argc,
		558	char **argv)
		559	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		560	{
		561	char *fname;
		562
		563	conf.clear ();
		564	node = &conf.default_node;
		565
		566	asprintf (&fname, "%s/gvpe.conf", confbase);
		567	parse_file (fname);
346	free (fname);	568	free (fname);
347		569
348	fname = config_filename (prikeyfile, "hostkey");	570	fname = conf.config_filename (conf.prikeyfile, "hostkey");
349		571
350	f = fopen (fname, "r");	572	if (FILE *f = fopen (fname, "r"))
351	if (f)
352	{	573	{
353	rsa_key = RSA_new ();	574	conf.rsa_key = RSA_new ();
354		575
355	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	576	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
356	{	577	{
357	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	578	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
358	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	579	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
359	exit (1);	580	exit (EXIT_FAILURE);
360	}	581	}
361		582
362	RSA_blinding_on (rsa_key, 0);	583	require (RSA_blinding_on (conf.rsa_key, 0));
363		584
364	fclose (f);	585	fclose (f);
365	}	586	}
366	else	587	else
367	{	588	{
368	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
369
370	if (need_keys)	589	if (need_keys)
371	exit (1);	590	{
		591	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		592	exit (EXIT_FAILURE);
		593	}
372	}	594	}
373		595
374	free (fname);	596	free (fname);
375	}
376		597
		598	fname = conf.config_filename (conf.pidfilename);
		599	free (conf.pidfilename); conf.pidfilename = fname;
		600
		601	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		602	{
		603	conf_node node = i;
		604	char *fname;
		605	FILE *f;
		606
		607	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		608
		609	f = fopen (fname, "r");
		610	if (f)
		611	{
		612	node->rsa_key = RSA_new ();
		613
		614	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		615	{
		616	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		617	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		618	exit (EXIT_FAILURE);
		619	}
		620
		621	require (RSA_blinding_on (node->rsa_key, 0));
		622
		623	fclose (f);
		624	}
		625	else
		626	{
		627	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		628
		629	if (need_keys)
		630	exit (EXIT_FAILURE);
		631	}
		632
		633	free (fname);
		634
		635	(*i)->finalise ();
		636	}
		637
		638	if (::thisnode)
		639	{
		640	conf.thisnode = conf.find_node (::thisnode);
		641
		642	if (need_keys)
		643	{
		644	if (!conf.thisnode)
		645	{
		646	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		647	exit (EXIT_FAILURE);
		648	}
		649
		650	if (conf.rsa_key && conf.thisnode->rsa_key)
		651	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		652	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		653	{
		654	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		655	exit (EXIT_FAILURE);
		656	}
		657	}
		658	}
		659
		660	parse_argv ();
		661	}
		662
		663	void
		664	configuration_parser::parse_argv ()
		665	{
		666	for (int i = 0; i < argc; ++i)
		667	{
		668	char *v = argv [i];
		669
		670	if (!*v)
		671	continue;
		672
		673	char *enode = v;
		674
		675	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		676	enode++;
		677
		678	if (*enode != '.')
		679	enode = 0;
		680
		681	if (enode)
		682	{
		683	char *val = strdup (v);
		684	val [enode - v] = 0;
		685	node = conf.find_node (val);
		686	free (val);
		687
		688	if (!node)
		689	{
		690	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		691	continue;
		692	}
		693	}
		694	else
		695	node = &conf.default_node;
		696
		697	const char *warn = parse_line (enode ? enode + 1 : v);
		698
		699	if (warn)
		700	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		701	}
		702	}
		703
		704	char *
377	char configuration::config_filename (const char name, const char *dflt)	705	configuration::config_filename (const char name, const char dflt)
378	{	706	{
379	char *fname;	707	char *fname;
380		708
381	asprintf (&fname, name ? name : dflt, ::thisnode);	709	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
382		710
383	if (!ABSOLUTE_PATH (fname))	711	if (!ABSOLUTE_PATH (fname))
384	{	712	{
385	char *rname = fname;	713	char *rname = fname;
386	asprintf (&fname, "%s/%s", confbase, rname);	714	asprintf (&fname, "%s/%s", confbase, rname);
387	free (rname);	715	free (rname);
388	}	716	}
389		717
390	return fname;	718	return fname;
		719	}
		720
		721	void
		722	conf_node::print ()
		723	{
		724	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		725	id,
		726	id >> 8, id & 0xff,
		727	compress ? 'Y' : 'N',
		728	connectmode == C_ONDEMAND ? "ondemand"
		729	: connectmode == C_NEVER ? "never"
		730	: connectmode == C_ALWAYS ? "always"
		731	: connectmode == C_DISABLED ? "disabled"
		732	: "",
		733	nodename,
		734	protocols,
		735	hostname ? hostname : "",
		736	hostname ? ":" : "",
		737	hostname ? udp_port : 0
		738	);
391	}	739	}
392		740
393	void	741	void
394	configuration::print ()	742	configuration::print ()
395	{	743	{
…		…
399	printf (_("MTU: %d\n"), mtu);	747	printf (_("MTU: %d\n"), mtu);
400	printf (_("rekeying interval: %d\n"), rekey);	748	printf (_("rekeying interval: %d\n"), rekey);
401	printf (_("keepalive interval: %d\n"), keepalive);	749	printf (_("keepalive interval: %d\n"), keepalive);
402	printf (_("interface: %s\n"), ifname);	750	printf (_("interface: %s\n"), ifname);
403	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	751	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
404	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	752	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
405	printf ("\n");	753	printf ("\n");
406		754
407	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	755	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
408	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	756	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
409		757
410	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	758	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
411	(*i)->print ();	759	(*i)->print ();
412		760
413	printf ("\n");	761	printf ("\n");
414	}	762	}
415		763
416	void	764	configuration::configuration ()
417	conf_node::print ()
418	{	765	{
419	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	766	asprintf (&confbase, "%s/gvpe", CONFDIR);
420	id,
421	id >> 8, id & 0xff,
422	compress ? 'Y' : 'N',
423	connectmode == C_ONDEMAND ? "ondemand" :
424	connectmode == C_NEVER ? "never" :
425	connectmode == C_ALWAYS ? "always" : "",
426	nodename,
427	hostname ? hostname : "",
428	hostname ? ":" : "",
429	hostname ? udp_port : 0
430	);
431	}
432		767
		768	init ();
		769	}
		770
		771	configuration::~configuration ()
		772	{
		773	cleanup ();
		774	}
		775

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Comparing gvpe/src/conf.C (file contents): Revision 1.10 by pcg, Wed Apr 2 21:02:25 2003 UTC vs. Revision 1.64 by root, Thu Jul 18 17:35:10 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.10 by pcg, Wed Apr 2 21:02:25 2003 UTC vs.
Revision 1.64 by root, Thu Jul 18 17:35:10 2013 UTC