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

Comparing gvpe/src/conf.C (file contents):
Revision 1.16 by pcg, Tue Oct 14 03:22:09 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	#include <arpa/inet.h>
38	#ifdef ENABLE_ICMP
39	# ifdef HAVE_NETINET_IN_SYSTM_H
40	# include <netinet/in_systm.h>
41	# endif
42	# ifdef HAVE_NETINET_IP_H
43	# include <netinet/ip.h>
44	# endif
45	# include <netinet/ip_icmp.h>
46	#endif
47		46
48	#include <openssl/err.h>	47	#include <openssl/err.h>
49	#include <openssl/pem.h>	48	#include <openssl/pem.h>
50	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
51	#include <openssl/rand.h>	50	#include <openssl/rand.h>
52		51	#include <openssl/bn.h>
53	#include "gettext.h"
54		52
55	#include "conf.h"	53	#include "conf.h"
56	#include "slog.h"	54	#include "slog.h"
57	#include "util.h"	55	#include "util.h"
58		56
59	char *confbase;	57	char *confbase;
60	char *thisnode;	58	char *thisnode;
61	char *identname;	59	char *identname;
62	char *pidfilename;
63		60
64	struct configuration conf;	61	struct configuration conf;
65		62
		63	u8
66	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
67	{	65	{
68	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
72		71
73	return 0;	72	return 0;
74	}	73	}
75		74
		75	const char *
76	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
77	{	77	{
78	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
79	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
80	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
81	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
82		83
83	return "<unknown>";	84	return "<unknown>";
84	}	85	}
85		86
86	void	87	static bool
87	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
88	{	89	{
89	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
90	id,	91	if ((i)[0] == '' && !(*i)[1])
91	id >> 8, id & 0xff,	92	return true;
92	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
93	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
94	connectmode == C_NEVER ? "never" :	95
95	connectmode == C_ALWAYS ? "always" : "",	96	return false;
96	nodename,	97	}
97	hostname ? hostname : "",	98
98	hostname ? ":" : "",	99	bool
99	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
100	);	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;
101	}	109	}
102		110
103	conf_node::~conf_node ()	111	conf_node::~conf_node ()
104	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
105	if (rsa_key)	116	if (rsa_key)
106	RSA_free (rsa_key);	117	RSA_free (rsa_key);
107		118
108	free (nodename);	119	free (nodename);
109	free (hostname);	120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
110	}	127	}
111		128
		129	void
112	void configuration::init ()	130	configuration::init ()
113	{	131	{
114	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
115		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
116	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
117	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
118	llevel = L_INFO;	138	llevel = L_INFO;
119	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
120	#if ENABLE_ICMP	140	#if ENABLE_ICMP
121	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
122	#endif	142	#endif
123		143
124	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
125	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
126	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
127	default_node.compress = true;	147	default_node.compress = true;
128	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
129	}	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 ("");
130		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
131	void configuration::cleanup()	172	configuration::cleanup ()
132	{	173	{
133	if (rsa_key)	174	if (rsa_key)
134	RSA_free (rsa_key);	175	RSA_free (rsa_key);
135		176
136	rsa_key = 0;	177	rsa_key = 0;
137		178
		179	free (seed_dev); seed_dev = 0;
138	free (ifname); ifname = 0;	180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
139	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
140	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
141	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
142	#endif	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;
143	}	194	}
144		195
145	void	196	void
146	configuration::clear_config ()	197	configuration::clear ()
147	{	198	{
148	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)
149	delete *i;	200	delete *i;
150		201
151	nodes.clear ();	202	nodes.clear ();
152		203
153	cleanup ();	204	cleanup ();
154	init ();	205	init ();
155	}	206	}
156		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
157	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
158	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
159	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
160	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
161	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
162	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
163	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
164	else \	231	else \
165	slog (L_WARN, \
166	_("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"); \
167	name, var, fname, lineno);	233	} while (0)
168		234
169	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
170	{	237	{
171	char *fname;	238	{
172	FILE *f;	239	char *end = line + strlen (line);
173		240
174	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
175		243
176	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
177	f = fopen (fname, "r");	245	}
178		246
179	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;
180	{	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	{
181	char line[16384];	533	char line [2048];
182	int lineno = 0;	534	int lineno = 0;
183	char var, val;
184	conf_node *node = &default_node;
185		535
186	while (fgets (line, sizeof (line), f))	536	while (fgets (line, sizeof (line), f))
187	{	537	{
188	lineno++;	538	lineno++;
189		539
190	{	540	const char *warn = parse_line (line);
191	char *end = line + strlen (line);
192		541
193	while (*end < ' ' && end >= line)	542	if (warn)
194	end--;	543	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
195
196	*++end = 0;
197	}
198
199	char *tok = line;
200
201	retry:
202	var = strtok (tok, "\t =");
203	tok = 0;
204
205	if (!var \|\| !var[0])
206	continue; /* no tokens on this line */
207
208	if (var[0] == '#')
209	continue; /* comment: ignore */
210
211	val = strtok (NULL, "\t\n\r =");
212
213	if (!val \|\| val[0] == '#')
214	{
215	slog (L_WARN,
216	_("no value for variable `%s', at '%s' line %d"),
217	var, fname, lineno);
218	break;
219	}
220
221	if (!strcmp (var, "on"))
222	{
223	if (!::thisnode
224	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
225	\|\| !strcmp (val, ::thisnode))
226	goto retry;
227
228	continue;
229	}
230
231	// truly global
232	if (!strcmp (var, "loglevel"))
233	{
234	loglevel l = string_to_loglevel (val);
235
236	if (l != L_NONE)
237	llevel = l;
238	else
239	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
240	}
241	else if (!strcmp (var, "ip-proto"))
242	ip_proto = atoi (val);
243	#if ENABLE_ICMP
244	//TODO: error message
245	else if (!strcmp (var, "icmp-type"))
246	icmp_type = atoi (val);
247	#endif
248
249	// per config
250	else if (!strcmp (var, "node"))
251	{
252	default_node.id++;
253
254	node = new conf_node (default_node);
255
256	nodes.push_back (node);
257
258	node->nodename = strdup (val);
259
260	{
261	char *fname;
262	FILE *f;
263
264	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
265
266	f = fopen (fname, "r");
267	if (f)
268	{
269	node->rsa_key = RSA_new ();
270
271	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
272	{
273	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
274	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
275	exit (1);
276	}
277
278	RSA_blinding_on (node->rsa_key, 0);
279
280	fclose (f);
281	}
282	else
283	{
284	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
285
286	if (need_keys)
287	exit (1);
288	}
289
290	free (fname);
291	}
292
293	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
294	thisnode = node;
295	}
296	else if (!strcmp (var, "private-key"))
297	prikeyfile = strdup (val);
298	else if (!strcmp (var, "ifpersist"))
299	{
300	parse_bool (ifpersist, "ifpersist", true, false);
301	}
302	else if (!strcmp (var, "ifname"))
303	ifname = strdup (val);
304	else if (!strcmp (var, "rekey"))
305	rekey = atoi (val);
306	else if (!strcmp (var, "keepalive"))
307	keepalive = atoi (val);
308	else if (!strcmp (var, "mtu"))
309	mtu = atoi (val);
310	else if (!strcmp (var, "if-up"))
311	script_if_up = strdup (val);
312	else if (!strcmp (var, "node-up"))
313	script_node_up = strdup (val);
314	else if (!strcmp (var, "node-down"))
315	script_node_down = strdup (val);
316	#if ENABLE_HTTP_PROXY
317	else if (!strcmp (var, "http-proxy-host"))
318	proxy_host = strdup (val);
319	else if (!strcmp (var, "http-proxy-port"))
320	proxy_port = atoi (val);
321	else if (!strcmp (var, "http-proxy-auth"))
322	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
323	#endif
324
325	/* node-specific, non-defaultable */
326	else if (node != &default_node && !strcmp (var, "hostname"))
327	{
328	free (node->hostname);
329	node->hostname = strdup (val);
330	}
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "router-priority"))
338	node->routerprio = atoi (val);
339	else if (!strcmp (var, "connect"))
340	{
341	if (!strcmp (val, "ondemand"))
342	node->connectmode = conf_node::C_ONDEMAND;
343	else if (!strcmp (val, "never"))
344	node->connectmode = conf_node::C_NEVER;
345	else if (!strcmp (val, "always"))
346	node->connectmode = conf_node::C_ALWAYS;
347	else if (!strcmp (val, "disabled"))
348	node->connectmode = conf_node::C_DISABLED;
349	else
350	slog (L_WARN,
351	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
352	var, fname, lineno);
353	}
354	else if (!strcmp (var, "inherit-tos"))
355	{
356	parse_bool (node->inherit_tos, "inherit-tos", true, false);
357	}
358	else if (!strcmp (var, "compress"))
359	{
360	parse_bool (node->compress, "compress", true, false);
361	}
362	// all these bool options really really cost a lot of executable size!
363	else if (!strcmp (var, "enable-tcp"))
364	{
365	#if ENABLE_TCP
366	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
367	#endif
368	}
369	else if (!strcmp (var, "enable-icmp"))
370	{
371	#if ENABLE_ICMP
372	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
373	#endif
374	}
375	else if (!strcmp (var, "enable-udp"))
376	{
377	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
378	}
379	else if (!strcmp (var, "enable-rawip"))
380	{
381	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
382	}
383
384	// unknown or misplaced
385	else
386	slog (L_WARN,
387	_("unknown or misplaced variable `%s', at '%s' line %d"),
388	var, fname, lineno);
389	}	544	}
390		545
391	fclose (f);	546	fclose (f);
392	}	547	}
393	else	548	else
394	{	549	{
395	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));
396	exit (1);	551	exit (EXIT_FAILURE);
397	}	552	}
		553	}
398		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);
399	free (fname);	568	free (fname);
400		569
401	fname = config_filename (prikeyfile, "hostkey");	570	fname = conf.config_filename (conf.prikeyfile, "hostkey");
402		571
403	f = fopen (fname, "r");	572	if (FILE *f = fopen (fname, "r"))
404	if (f)
405	{	573	{
406	rsa_key = RSA_new ();	574	conf.rsa_key = RSA_new ();
407		575
408	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	576	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
409	{	577	{
410	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	578	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
411	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));
412	exit (1);	580	exit (EXIT_FAILURE);
413	}	581	}
414		582
415	RSA_blinding_on (rsa_key, 0);	583	require (RSA_blinding_on (conf.rsa_key, 0));
416		584
417	fclose (f);	585	fclose (f);
418	}	586	}
419	else	587	else
420	{	588	{
421	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
422
423	if (need_keys)	589	if (need_keys)
424	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	}
425	}	594	}
426		595
427	free (fname);	596	free (fname);
428	}
429		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 *
430	char configuration::config_filename (const char name, const char *dflt)	705	configuration::config_filename (const char name, const char dflt)
431	{	706	{
432	char *fname;	707	char *fname;
433		708
434	asprintf (&fname, name ? name : dflt, ::thisnode);	709	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
435		710
436	if (!ABSOLUTE_PATH (fname))	711	if (!ABSOLUTE_PATH (fname))
437	{	712	{
438	char *rname = fname;	713	char *rname = fname;
439	asprintf (&fname, "%s/%s", confbase, rname);	714	asprintf (&fname, "%s/%s", confbase, rname);
440	free (rname);	715	free (rname);
441	}	716	}
442		717
443	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	);
444	}	739	}
445		740
446	void	741	void
447	configuration::print ()	742	configuration::print ()
448	{	743	{
…		…
455	printf (_("interface: %s\n"), ifname);	750	printf (_("interface: %s\n"), ifname);
456	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	751	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
457	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	752	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
458	printf ("\n");	753	printf ("\n");
459		754
460	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	755	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
461	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	756	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
462		757
463	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	758	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
464	(*i)->print ();	759	(*i)->print ();
465		760
466	printf ("\n");	761	printf ("\n");
467	}	762	}
468		763
469	configuration::configuration ()	764	configuration::configuration ()
470	{	765	{
		766	asprintf (&confbase, "%s/gvpe", CONFDIR);
		767
471	init ();	768	init ();
472	}	769	}
473		770
474	configuration::~configuration ()	771	configuration::~configuration ()
475	{	772	{
476	cleanup ();	773	cleanup ();
477	}	774	}
478		775
479

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Comparing gvpe/src/conf.C (file contents): Revision 1.16 by pcg, Tue Oct 14 03:22:09 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 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.64 by root, Thu Jul 18 17:35:10 2013 UTC