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

Comparing gvpe/src/conf.C (file contents):
Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
35		44
36	#include "netcompat.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;
59	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
60	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
61	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
62		71
63	return 0;	72	return 0;
64	}	73	}
65		74
		75	const char *
66	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
67	{	77	{
68	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
69	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
70	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
71	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
72		83
73	return "<unknown>";	84	return "<unknown>";
74	}	85	}
75		86
76	void	87	static bool
77	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
78	{	89	{
79	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 (); )
80	id,	91	if ((i)[0] == '' && !(*i)[1])
81	id >> 8, id & 0xff,	92	return true;
82	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
83	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
84	connectmode == C_NEVER ? "never" :	95
85	connectmode == C_ALWAYS ? "always" : "",	96	return false;
86	nodename,	97	}
87	hostname ? hostname : "",	98
88	hostname ? ":" : "",	99	bool
89	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
90	);	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;
91	}	109	}
92		110
93	conf_node::~conf_node ()	111	conf_node::~conf_node ()
94	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
95	if (rsa_key)	116	if (rsa_key)
96	RSA_free (rsa_key);	117	RSA_free (rsa_key);
97		118
98	free (nodename);	119	free (nodename);
99	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
100	}	127	}
101		128
		129	void
102	void configuration::init ()	130	configuration::init ()
103	{	131	{
104	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
105		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
106	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
107	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
108	llevel = L_INFO;	138	llevel = L_INFO;
109	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
110	#if ENABLE_ICMP	140	#if ENABLE_ICMP
111	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
112	#endif	142	#endif
113		143
114	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
115	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
117	default_node.compress = true;	147	default_node.compress = true;
118	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
119	}	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 ("");
120		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
121	void configuration::cleanup()	172	configuration::cleanup ()
122	{	173	{
123	if (rsa_key)	174	if (rsa_key)
124	RSA_free (rsa_key);	175	RSA_free (rsa_key);
125		176
126	rsa_key = 0;	177	rsa_key = 0;
127		178
		179	free (seed_dev); seed_dev = 0;
128	free (ifname); ifname = 0;	180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
129	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
130	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
131	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
132	#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;
133	}	194	}
134		195
135	void	196	void
136	configuration::clear_config ()	197	configuration::clear ()
137	{	198	{
138	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)
139	delete *i;	200	delete *i;
140		201
141	nodes.clear ();	202	nodes.clear ();
142		203
143	cleanup ();	204	cleanup ();
144	init ();	205	init ();
145	}	206	}
146		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
147	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
148	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
149	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
150	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
151	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
152	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
153	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
154	else \	231	else \
155	slog (L_WARN, \
156	_("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"); \
157	name, var, fname, lineno);	233	} while (0)
158		234
159	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
160	{	237	{
161	char *fname;	238	{
162	FILE *f;	239	char *end = line + strlen (line);
163		240
164	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
165		243
166	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
167	f = fopen (fname, "r");	245	}
168		246
169	if (f)	247	char *tok = line;
		248	const char *var = strtok (tok, "\t =");
		249	tok = 0;
		250
		251	if (!var \|\| !var[0])
		252	return 0; /* no tokens on this line */
		253
		254	if (var[0] == '#')
		255	return 0; /* comment: ignore */
		256
		257	char *val = strtok (NULL, "\t\n\r =");
		258
		259	if (!val \|\| val[0] == '#')
		260	return _("no value given for variable, ignored");
		261
		262	else if (!strcmp (var, "on"))
		263	{
		264	if (::thisnode
		265	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		266	\|\| !strcmp (val, ::thisnode)))
		267	return parse_line (strtok (NULL, "\n\r"));
170	{	268	}
		269
		270	else if (!strcmp (var, "include"))
		271	{
		272	char *fname = conf.config_filename (val);
		273	parse_file (fname);
		274	free (fname);
		275	}
		276
		277	// truly global
		278	else if (!strcmp (var, "loglevel"))
		279	{
		280	loglevel l = string_to_loglevel (val);
		281
		282	if (l == L_NONE)
		283	return _("unknown loglevel, ignored");
		284	}
		285	else if (!strcmp (var, "ip-proto"))
		286	conf.ip_proto = atoi (val);
		287	else if (!strcmp (var, "icmp-type"))
		288	{
		289	#if ENABLE_ICMP
		290	conf.icmp_type = atoi (val);
		291	#endif
		292	}
		293	else if (!strcmp (var, "chuser"))
		294	{
		295	struct passwd *pw = getpwnam (val);
		296	if (!pw)
		297	return _("user specified for chuser not found");
		298
		299	conf.change_uid = pw->pw_uid;
		300	conf.change_gid = pw->pw_gid;
		301	}
		302	else if (!strcmp (var, "chuid"))
		303	conf.change_uid = atoi (val);
		304	else if (!strcmp (var, "chgid"))
		305	conf.change_gid = atoi (val);
		306	else if (!strcmp (var, "chroot"))
		307	free (conf.change_root), conf.change_root = strdup (val);
		308
		309	// per node
		310	else if (!strcmp (var, "global"))
		311	node = &conf.default_node;
		312	else if (!strcmp (var, "node"))
		313	{
		314	node = conf.find_node (val);
		315
		316	if (!node)
		317	{
		318	conf.default_node.id++;
		319	node = new conf_node (conf.default_node);
		320	conf.nodes.push_back (node);
		321	node->nodename = strdup (val);
		322	}
		323	}
		324	else if (!strcmp (var, "private-key"))
		325	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		326	else if (!strcmp (var, "ifpersist"))
		327	parse_bool (conf.ifpersist, "ifpersist", true, false);
		328	else if (!strcmp (var, "ifname"))
		329	free (conf.ifname), conf.ifname = strdup (val);
		330	else if (!strcmp (var, "rekey"))
		331	conf.rekey = atoi (val);
		332	else if (!strcmp (var, "keepalive"))
		333	conf.keepalive = atoi (val);
		334	else if (!strcmp (var, "mtu"))
		335	conf.mtu = atoi (val);
		336	else if (!strcmp (var, "nfmark"))
		337	conf.nfmark = atoi (val);
		338	else if (!strcmp (var, "seed-device"))
		339	free (conf.seed_dev), conf.seed_dev = strdup (val);
		340	else if (!strcmp (var, "seed-interval"))
		341	conf.reseed = atoi (val);
		342	else if (!strcmp (var, "if-up"))
		343	free (conf.script_if_up), conf.script_if_up = strdup (val);
		344	else if (!strcmp (var, "node-up"))
		345	free (conf.script_node_up), conf.script_node_up = strdup (val);
		346	else if (!strcmp (var, "node-change"))
		347	free (conf.script_node_change), conf.script_node_change = strdup (val);
		348	else if (!strcmp (var, "node-down"))
		349	free (conf.script_node_down), conf.script_node_down = strdup (val);
		350	else if (!strcmp (var, "pid-file"))
		351	free (conf.pidfilename), conf.pidfilename = strdup (val);
		352	else if (!strcmp (var, "dns-forw-host"))
		353	{
		354	#if ENABLE_DNS
		355	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		356	#endif
		357	}
		358	else if (!strcmp (var, "dns-forw-port"))
		359	{
		360	#if ENABLE_DNS
		361	conf.dns_forw_port = atoi (val);
		362	#endif
		363	}
		364	else if (!strcmp (var, "dns-timeout-factor"))
		365	{
		366	#if ENABLE_DNS
		367	conf.dns_timeout_factor = atof (val);
		368	#endif
		369	}
		370	else if (!strcmp (var, "dns-send-interval"))
		371	{
		372	#if ENABLE_DNS
		373	conf.dns_send_interval = atoi (val);
		374	#endif
		375	}
		376	else if (!strcmp (var, "dns-overlap-factor"))
		377	{
		378	#if ENABLE_DNS
		379	conf.dns_overlap_factor = atof (val);
		380	#endif
		381	}
		382	else if (!strcmp (var, "dns-max-outstanding"))
		383	{
		384	#if ENABLE_DNS
		385	conf.dns_max_outstanding = atoi (val);
		386	#endif
		387	}
		388	else if (!strcmp (var, "dns-case-preserving"))
		389	{
		390	#if ENABLE_DNS
		391	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		392	#endif
		393	}
		394	else if (!strcmp (var, "http-proxy-host"))
		395	{
		396	#if ENABLE_HTTP_PROXY
		397	free (conf.proxy_host), conf.proxy_host = strdup (val);
		398	#endif
		399	}
		400	else if (!strcmp (var, "http-proxy-port"))
		401	{
		402	#if ENABLE_HTTP_PROXY
		403	conf.proxy_port = atoi (val);
		404	#endif
		405	}
		406	else if (!strcmp (var, "http-proxy-auth"))
		407	{
		408	#if ENABLE_HTTP_PROXY
		409	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		410	#endif
		411	}
		412
		413	/* node-specific, non-defaultable */
		414	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		415	free (node->hostname), node->hostname = strdup (val);
		416
		417	/* node-specific, defaultable */
		418	else if (!strcmp (var, "udp-port"))
		419	node->udp_port = atoi (val);
		420	else if (!strcmp (var, "tcp-port"))
		421	node->tcp_port = atoi (val);
		422	else if (!strcmp (var, "dns-hostname"))
		423	{
		424	#if ENABLE_DNS
		425	free (node->dns_hostname), node->dns_hostname = strdup (val);
		426	#endif
		427	}
		428	else if (!strcmp (var, "dns-port"))
		429	{
		430	#if ENABLE_DNS
		431	node->dns_port = atoi (val);
		432	#endif
		433	}
		434	else if (!strcmp (var, "dns-domain"))
		435	{
		436	#if ENABLE_DNS
		437	free (node->domain), node->domain = strdup (val);
		438	#endif
		439	}
		440	else if (!strcmp (var, "if-up-data"))
		441	free (node->if_up_data), node->if_up_data = strdup (val);
		442	else if (!strcmp (var, "router-priority"))
		443	node->routerprio = atoi (val);
		444	else if (!strcmp (var, "max-retry"))
		445	node->max_retry = atoi (val);
		446	else if (!strcmp (var, "connect"))
		447	{
		448	if (!strcmp (val, "ondemand"))
		449	node->connectmode = conf_node::C_ONDEMAND;
		450	else if (!strcmp (val, "never"))
		451	node->connectmode = conf_node::C_NEVER;
		452	else if (!strcmp (val, "always"))
		453	node->connectmode = conf_node::C_ALWAYS;
		454	else if (!strcmp (val, "disabled"))
		455	node->connectmode = conf_node::C_DISABLED;
		456	else
		457	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		458	}
		459	else if (!strcmp (var, "inherit-tos"))
		460	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		461	else if (!strcmp (var, "compress"))
		462	parse_bool (node->compress, "compress", true, false);
		463	// all these bool options really really cost a lot of executable size!
		464	else if (!strcmp (var, "enable-tcp"))
		465	{
		466	#if ENABLE_TCP
		467	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		468	#endif
		469	}
		470	else if (!strcmp (var, "enable-icmp"))
		471	{
		472	#if ENABLE_ICMP
		473	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		474	#endif
		475	}
		476	else if (!strcmp (var, "enable-dns"))
		477	{
		478	#if ENABLE_DNS
		479	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		480	#endif
		481	}
		482	else if (!strcmp (var, "enable-udp"))
		483	{
		484	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		485	}
		486	else if (!strcmp (var, "enable-rawip"))
		487	{
		488	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		489	}
		490	else if (!strcmp (var, "allow-direct"))
		491	node->allow_direct.push_back (strdup (val));
		492	else if (!strcmp (var, "deny-direct"))
		493	node->deny_direct.push_back (strdup (val));
		494	else if (!strcmp (var, "max-ttl"))
		495	node->max_ttl = atof (val);
		496	else if (!strcmp (var, "max-queue"))
		497	node->max_queue = atoi (val);
		498
		499	// unknown or misplaced
		500	else
		501	return _("unknown configuration directive - ignored");
		502
		503	return 0;
		504	}
		505
		506	void
		507	conf_node::finalise ()
		508	{
		509	if (max_queue < 1)
		510	{
		511	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		512	max_queue = 1;
		513	}
		514
		515	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		516	{
		517	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		518	connectmode = C_ALWAYS;
		519	}
		520	}
		521
		522	void
		523	configuration_parser::parse_file (const char *fname)
		524	{
		525	if (FILE *f = fopen (fname, "r"))
		526	{
171	char line[16384];	527	char line [2048];
172	int lineno = 0;	528	int lineno = 0;
173	char var, val;
174	conf_node *node = &default_node;
175		529
176	while (fgets (line, sizeof (line), f))	530	while (fgets (line, sizeof (line), f))
177	{	531	{
178	lineno++;	532	lineno++;
179		533
180	{	534	const char *warn = parse_line (line);
181	char *end = line + strlen (line);
182		535
183	while (*end < ' ' && end >= line)	536	if (warn)
184	end--;	537	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
185
186	*++end = 0;
187	}
188
189	char *tok = line;
190
191	retry:
192	var = strtok (tok, "\t =");
193	tok = 0;
194
195	if (!var \|\| !var[0])
196	continue; /* no tokens on this line */
197
198	if (var[0] == '#')
199	continue; /* comment: ignore */
200
201	val = strtok (NULL, "\t\n\r =");
202
203	if (!val \|\| val[0] == '#')
204	{
205	slog (L_WARN,
206	_("no value for variable `%s', at '%s' line %d"),
207	var, fname, lineno);
208	break;
209	}
210
211	if (!strcmp (var, "on"))
212	{
213	if (!::thisnode
214	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
215	\|\| !strcmp (val, ::thisnode))
216	goto retry;
217
218	continue;
219	}
220
221	// truly global
222	if (!strcmp (var, "loglevel"))
223	{
224	loglevel l = string_to_loglevel (val);
225
226	if (l != L_NONE)
227	llevel = l;
228	else
229	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
230	}
231	else if (!strcmp (var, "ip-proto"))
232	ip_proto = atoi (val);
233	#if ENABLE_ICMP
234	//TODO: error message
235	else if (!strcmp (var, "icmp-type"))
236	icmp_type = atoi (val);
237	#endif
238
239	// per config
240	else if (!strcmp (var, "node"))
241	{
242	default_node.id++;
243
244	node = new conf_node (default_node);
245
246	nodes.push_back (node);
247
248	node->nodename = strdup (val);
249
250	{
251	char *fname;
252	FILE *f;
253
254	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
255
256	f = fopen (fname, "r");
257	if (f)
258	{
259	node->rsa_key = RSA_new ();
260
261	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
262	{
263	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
264	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
265	exit (1);
266	}
267
268	RSA_blinding_on (node->rsa_key, 0);
269
270	fclose (f);
271	}
272	else
273	{
274	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
275
276	if (need_keys)
277	exit (1);
278	}
279
280	free (fname);
281	}
282
283	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
284	thisnode = node;
285	}
286	else if (!strcmp (var, "private-key"))
287	prikeyfile = strdup (val);
288	else if (!strcmp (var, "ifpersist"))
289	{
290	parse_bool (ifpersist, "ifpersist", true, false);
291	}
292	else if (!strcmp (var, "ifname"))
293	ifname = strdup (val);
294	else if (!strcmp (var, "rekey"))
295	rekey = atoi (val);
296	else if (!strcmp (var, "keepalive"))
297	keepalive = atoi (val);
298	else if (!strcmp (var, "mtu"))
299	mtu = atoi (val);
300	else if (!strcmp (var, "if-up"))
301	script_if_up = strdup (val);
302	else if (!strcmp (var, "node-up"))
303	script_node_up = strdup (val);
304	else if (!strcmp (var, "node-down"))
305	script_node_down = strdup (val);
306	#if ENABLE_HTTP_PROXY
307	else if (!strcmp (var, "http-proxy-host"))
308	proxy_host = strdup (val);
309	else if (!strcmp (var, "http-proxy-port"))
310	proxy_port = atoi (val);
311	else if (!strcmp (var, "http-proxy-auth"))
312	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
313	#endif
314
315	/* node-specific, non-defaultable */
316	else if (node != &default_node && !strcmp (var, "hostname"))
317	{
318	free (node->hostname);
319	node->hostname = strdup (val);
320	}
321
322	/* node-specific, defaultable */
323	else if (!strcmp (var, "udp-port"))
324	node->udp_port = atoi (val);
325	else if (!strcmp (var, "tcp-port"))
326	node->tcp_port = atoi (val);
327	else if (!strcmp (var, "router-priority"))
328	node->routerprio = atoi (val);
329	else if (!strcmp (var, "connect"))
330	{
331	if (!strcmp (val, "ondemand"))
332	node->connectmode = conf_node::C_ONDEMAND;
333	else if (!strcmp (val, "never"))
334	node->connectmode = conf_node::C_NEVER;
335	else if (!strcmp (val, "always"))
336	node->connectmode = conf_node::C_ALWAYS;
337	else if (!strcmp (val, "disabled"))
338	node->connectmode = conf_node::C_DISABLED;
339	else
340	slog (L_WARN,
341	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
342	var, fname, lineno);
343	}
344	else if (!strcmp (var, "inherit-tos"))
345	{
346	parse_bool (node->inherit_tos, "inherit-tos", true, false);
347	}
348	else if (!strcmp (var, "compress"))
349	{
350	parse_bool (node->compress, "compress", true, false);
351	}
352	// all these bool options really really cost a lot of executable size!
353	else if (!strcmp (var, "enable-tcp"))
354	{
355	#if ENABLE_TCP
356	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
357	#endif
358	}
359	else if (!strcmp (var, "enable-icmp"))
360	{
361	#if ENABLE_ICMP
362	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
363	#endif
364	}
365	else if (!strcmp (var, "enable-udp"))
366	{
367	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
368	}
369	else if (!strcmp (var, "enable-rawip"))
370	{
371	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
372	}
373
374	// unknown or misplaced
375	else
376	slog (L_WARN,
377	_("unknown or misplaced variable `%s', at '%s' line %d"),
378	var, fname, lineno);
379	}	538	}
380		539
381	fclose (f);	540	fclose (f);
382	}	541	}
383	else	542	else
384	{	543	{
385	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	544	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
386	exit (1);	545	exit (EXIT_FAILURE);
387	}	546	}
		547	}
388		548
		549	configuration_parser::configuration_parser (configuration &conf,
		550	bool need_keys,
		551	int argc,
		552	char **argv)
		553	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		554	{
		555	char *fname;
		556
		557	conf.clear ();
		558	node = &conf.default_node;
		559
		560	asprintf (&fname, "%s/gvpe.conf", confbase);
		561	parse_file (fname);
389	free (fname);	562	free (fname);
390		563
391	fname = config_filename (prikeyfile, "hostkey");	564	fname = conf.config_filename (conf.prikeyfile, "hostkey");
392		565
393	f = fopen (fname, "r");	566	if (FILE *f = fopen (fname, "r"))
394	if (f)
395	{	567	{
396	rsa_key = RSA_new ();	568	conf.rsa_key = RSA_new ();
397		569
398	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	570	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
399	{	571	{
400	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	572	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
401	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	573	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
402	exit (1);	574	exit (EXIT_FAILURE);
403	}	575	}
404		576
405	RSA_blinding_on (rsa_key, 0);	577	require (RSA_blinding_on (conf.rsa_key, 0));
406		578
407	fclose (f);	579	fclose (f);
408	}	580	}
409	else	581	else
410	{	582	{
411	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
412
413	if (need_keys)	583	if (need_keys)
414	exit (1);	584	{
		585	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		586	exit (EXIT_FAILURE);
		587	}
415	}	588	}
416		589
417	free (fname);	590	free (fname);
418	}
419		591
		592	fname = conf.config_filename (conf.pidfilename);
		593	free (conf.pidfilename); conf.pidfilename = fname;
		594
		595	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		596	{
		597	conf_node node = i;
		598	char *fname;
		599	FILE *f;
		600
		601	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		602
		603	f = fopen (fname, "r");
		604	if (f)
		605	{
		606	node->rsa_key = RSA_new ();
		607
		608	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		609	{
		610	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		611	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		612	exit (EXIT_FAILURE);
		613	}
		614
		615	require (RSA_blinding_on (node->rsa_key, 0));
		616
		617	fclose (f);
		618	}
		619	else
		620	{
		621	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		622
		623	if (need_keys)
		624	exit (EXIT_FAILURE);
		625	}
		626
		627	free (fname);
		628
		629	(*i)->finalise ();
		630	}
		631
		632	if (::thisnode)
		633	{
		634	conf.thisnode = conf.find_node (::thisnode);
		635
		636	if (need_keys)
		637	{
		638	if (!conf.thisnode)
		639	{
		640	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		641	exit (EXIT_FAILURE);
		642	}
		643
		644	if (conf.rsa_key && conf.thisnode->rsa_key)
		645	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		646	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		647	{
		648	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		649	exit (EXIT_FAILURE);
		650	}
		651	}
		652	}
		653
		654	parse_argv ();
		655	}
		656
		657	void
		658	configuration_parser::parse_argv ()
		659	{
		660	for (int i = 0; i < argc; ++i)
		661	{
		662	char *v = argv [i];
		663
		664	if (!*v)
		665	continue;
		666
		667	char *enode = v;
		668
		669	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		670	enode++;
		671
		672	if (*enode != '.')
		673	enode = 0;
		674
		675	if (enode)
		676	{
		677	char *val = strdup (v);
		678	val [enode - v] = 0;
		679	node = conf.find_node (val);
		680	free (val);
		681
		682	if (!node)
		683	{
		684	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		685	continue;
		686	}
		687	}
		688	else
		689	node = &conf.default_node;
		690
		691	const char *warn = parse_line (enode ? enode + 1 : v);
		692
		693	if (warn)
		694	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		695	}
		696	}
		697
		698	char *
420	char configuration::config_filename (const char name, const char *dflt)	699	configuration::config_filename (const char name, const char dflt)
421	{	700	{
422	char *fname;	701	char *fname;
423		702
424	asprintf (&fname, name ? name : dflt, ::thisnode);	703	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
425		704
426	if (!ABSOLUTE_PATH (fname))	705	if (!ABSOLUTE_PATH (fname))
427	{	706	{
428	char *rname = fname;	707	char *rname = fname;
429	asprintf (&fname, "%s/%s", confbase, rname);	708	asprintf (&fname, "%s/%s", confbase, rname);
430	free (rname);	709	free (rname);
431	}	710	}
432		711
433	return fname;	712	return fname;
		713	}
		714
		715	void
		716	conf_node::print ()
		717	{
		718	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		719	id,
		720	id >> 8, id & 0xff,
		721	compress ? 'Y' : 'N',
		722	connectmode == C_ONDEMAND ? "ondemand"
		723	: connectmode == C_NEVER ? "never"
		724	: connectmode == C_ALWAYS ? "always"
		725	: connectmode == C_DISABLED ? "disabled"
		726	: "",
		727	nodename,
		728	protocols,
		729	hostname ? hostname : "",
		730	hostname ? ":" : "",
		731	hostname ? udp_port : 0
		732	);
434	}	733	}
435		734
436	void	735	void
437	configuration::print ()	736	configuration::print ()
438	{	737	{
…		…
445	printf (_("interface: %s\n"), ifname);	744	printf (_("interface: %s\n"), ifname);
446	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	745	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
447	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	746	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
448	printf ("\n");	747	printf ("\n");
449		748
450	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	749	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
451	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	750	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
452		751
453	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	752	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
454	(*i)->print ();	753	(*i)->print ();
455		754
456	printf ("\n");	755	printf ("\n");
457	}	756	}
458		757
459	configuration::configuration ()	758	configuration::configuration ()
460	{	759	{
		760	asprintf (&confbase, "%s/gvpe", CONFDIR);
		761
461	init ();	762	init ();
462	}	763	}
463		764
464	configuration::~configuration ()	765	configuration::~configuration ()
465	{	766	{
466	cleanup ();	767	cleanup ();
467	}	768	}
468		769
469

Diff Legend

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

Comparing gvpe/src/conf.C (file contents): Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs. Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC