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

Comparing gvpe/src/conf.C (file contents):
Revision 1.12 by pcg, Mon Apr 7 01:12:56 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 <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	void	87	static bool
75	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
76	{	89	{
77	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 (); )
78	id,	91	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	92	return true;
80	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
82	connectmode == C_NEVER ? "never" :	95
83	connectmode == C_ALWAYS ? "always" : "",	96	return false;
84	nodename,	97	}
85	hostname ? hostname : "",	98
86	hostname ? ":" : "",	99	bool
87	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
88	);	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;
89	}	109	}
90		110
91	conf_node::~conf_node ()	111	conf_node::~conf_node ()
92	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
93	if (rsa_key)	116	if (rsa_key)
94	RSA_free (rsa_key);	117	RSA_free (rsa_key);
95		118
96	free (nodename);	119	free (nodename);
97	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
98	}	127	}
99		128
		129	void
100	void configuration::init ()	130	configuration::init ()
101	{	131	{
102	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
103		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
104	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
105	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
106	llevel = L_INFO;	138	llevel = L_INFO;
107	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
108		143
109	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
110	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
111	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
112	default_node.compress = true;	147	default_node.compress = true;
113	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
114	}	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 ("");
115		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
116	void configuration::cleanup()	172	configuration::cleanup ()
117	{	173	{
118	if (rsa_key)	174	if (rsa_key)
119	RSA_free (rsa_key);	175	RSA_free (rsa_key);
120		176
121	rsa_key = 0;	177	rsa_key = 0;
122		178
		179	free (seed_dev); seed_dev = 0;
123	free (ifname); ifname = 0;	180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
124	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
125	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
126	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
127	#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;
128	}	194	}
129		195
130	void	196	void
131	configuration::clear_config ()	197	configuration::clear ()
132	{	198	{
133	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)
134	delete *i;	200	delete *i;
135		201
136	nodes.clear ();	202	nodes.clear ();
137		203
138	cleanup ();	204	cleanup ();
139	init ();	205	init ();
140	}	206	}
141		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
142	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
143	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
144	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
145	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
146	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
147	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
148	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
149	else \	231	else \
150	slog (L_WARN, \
151	_("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"); \
152	name, var, fname, lineno);	233	} while (0)
153		234
154	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
155	{	237	{
156	char *fname;	238	{
157	FILE *f;	239	char *end = line + strlen (line);
158		240
159	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
160		243
161	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
162	f = fopen (fname, "r");	245	}
163		246
164	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"));
165	{	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	{
166	char line[16384];	527	char line [2048];
167	int lineno = 0;	528	int lineno = 0;
168	char var, val;
169	conf_node *node = &default_node;
170		529
171	while (fgets (line, sizeof (line), f))	530	while (fgets (line, sizeof (line), f))
172	{	531	{
173	lineno++;	532	lineno++;
174		533
175	{	534	const char *warn = parse_line (line);
176	char *end = line + strlen (line);
177		535
178	while (*end < ' ' && end >= line)	536	if (warn)
179	end--;	537	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
180
181	*++end = 0;
182	}
183
184	char *tok = line;
185
186	retry:
187	var = strtok (tok, "\t =");
188	tok = 0;
189
190	if (!var \|\| !var[0])
191	continue; /* no tokens on this line */
192
193	if (var[0] == '#')
194	continue; /* comment: ignore */
195
196	val = strtok (NULL, "\t\n\r =");
197
198	if (!val \|\| val[0] == '#')
199	{
200	slog (L_WARN,
201	_("no value for variable `%s', at '%s' line %d"),
202	var, fname, lineno);
203	break;
204	}
205
206	if (!strcmp (var, "on"))
207	{
208	if (!::thisnode
209	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
210	\|\| !strcmp (val, ::thisnode))
211	goto retry;
212
213	continue;
214	}
215
216	// truly global
217	if (!strcmp (var, "loglevel"))
218	{
219	loglevel l = string_to_loglevel (val);
220
221	if (l != L_NONE)
222	llevel = l;
223	else
224	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
225	}
226	else if (!strcmp (var, "ip-proto"))
227	ip_proto = atoi (val);
228
229	// per config
230	else if (!strcmp (var, "node"))
231	{
232	default_node.id++;
233
234	node = new conf_node (default_node);
235
236	nodes.push_back (node);
237
238	node->nodename = strdup (val);
239
240	{
241	char *fname;
242	FILE *f;
243
244	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
245
246	f = fopen (fname, "r");
247	if (f)
248	{
249	node->rsa_key = RSA_new ();
250
251	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
252	{
253	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
254	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
255	exit (1);
256	}
257
258	RSA_blinding_on (node->rsa_key, 0);
259
260	fclose (f);
261	}
262	else
263	{
264	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
265
266	if (need_keys)
267	exit (1);
268	}
269
270	free (fname);
271	}
272
273	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
274	thisnode = node;
275	}
276	else if (!strcmp (var, "private-key"))
277	prikeyfile = strdup (val);
278	else if (!strcmp (var, "ifpersist"))
279	{
280	parse_bool (ifpersist, "ifpersist", true, false);
281	}
282	else if (!strcmp (var, "ifname"))
283	ifname = strdup (val);
284	else if (!strcmp (var, "rekey"))
285	rekey = atoi (val);
286	else if (!strcmp (var, "keepalive"))
287	keepalive = atoi (val);
288	else if (!strcmp (var, "mtu"))
289	mtu = atoi (val);
290	else if (!strcmp (var, "if-up"))
291	script_if_up = strdup (val);
292	else if (!strcmp (var, "node-up"))
293	script_node_up = strdup (val);
294	else if (!strcmp (var, "node-down"))
295	script_node_down = strdup (val);
296	#if ENABLE_HTTP_PROXY
297	else if (!strcmp (var, "http-proxy-host"))
298	proxy_host = strdup (val);
299	else if (!strcmp (var, "http-proxy-port"))
300	proxy_port = atoi (val);
301	else if (!strcmp (var, "http-proxy-auth"))
302	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
303	#endif
304
305	/* node-specific, non-defaultable */
306	else if (node != &default_node && !strcmp (var, "hostname"))
307	{
308	free (node->hostname);
309	node->hostname = strdup (val);
310	}
311
312	/* node-specific, defaultable */
313	else if (!strcmp (var, "udp-port"))
314	node->udp_port = atoi (val);
315	else if (!strcmp (var, "tcp-port"))
316	node->tcp_port = atoi (val);
317	else if (!strcmp (var, "router-priority"))
318	node->routerprio = atoi (val);
319	else if (!strcmp (var, "connect"))
320	{
321	if (!strcmp (val, "ondemand"))
322	node->connectmode = conf_node::C_ONDEMAND;
323	else if (!strcmp (val, "never"))
324	node->connectmode = conf_node::C_NEVER;
325	else if (!strcmp (val, "always"))
326	node->connectmode = conf_node::C_ALWAYS;
327	else if (!strcmp (val, "disabled"))
328	node->connectmode = conf_node::C_DISABLED;
329	else
330	slog (L_WARN,
331	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
332	var, fname, lineno);
333	}
334	else if (!strcmp (var, "inherit-tos"))
335	{
336	parse_bool (node->inherit_tos, "inherit-tos", true, false);
337	}
338	else if (!strcmp (var, "compress"))
339	{
340	parse_bool (node->compress, "compress", true, false);
341	}
342	// all these bool options really really cost a lot of executable size!
343	else if (!strcmp (var, "enable-tcp"))
344	{
345	#if ENABLE_TCP
346	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
347	#endif
348	}
349	else if (!strcmp (var, "enable-udp"))
350	{
351	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
352	}
353	else if (!strcmp (var, "enable-rawip"))
354	{
355	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
356	}
357
358	// unknown or misplaced
359	else
360	slog (L_WARN,
361	_("unknown or misplaced variable `%s', at '%s' line %d"),
362	var, fname, lineno);
363	}	538	}
364		539
365	fclose (f);	540	fclose (f);
366	}	541	}
367	else	542	else
368	{	543	{
369	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));
370	exit (1);	545	exit (EXIT_FAILURE);
371	}	546	}
		547	}
372		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);
373	free (fname);	562	free (fname);
374		563
375	fname = config_filename (prikeyfile, "hostkey");	564	fname = conf.config_filename (conf.prikeyfile, "hostkey");
376		565
377	f = fopen (fname, "r");	566	if (FILE *f = fopen (fname, "r"))
378	if (f)
379	{	567	{
380	rsa_key = RSA_new ();	568	conf.rsa_key = RSA_new ();
381		569
382	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	570	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
383	{	571	{
384	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	572	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
385	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));
386	exit (1);	574	exit (EXIT_FAILURE);
387	}	575	}
388		576
389	RSA_blinding_on (rsa_key, 0);	577	require (RSA_blinding_on (conf.rsa_key, 0));
390		578
391	fclose (f);	579	fclose (f);
392	}	580	}
393	else	581	else
394	{	582	{
395	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
396
397	if (need_keys)	583	if (need_keys)
398	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	}
399	}	588	}
400		589
401	free (fname);	590	free (fname);
402	}
403		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 *
404	char configuration::config_filename (const char name, const char *dflt)	699	configuration::config_filename (const char name, const char dflt)
405	{	700	{
406	char *fname;	701	char *fname;
407		702
408	asprintf (&fname, name ? name : dflt, ::thisnode);	703	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
409		704
410	if (!ABSOLUTE_PATH (fname))	705	if (!ABSOLUTE_PATH (fname))
411	{	706	{
412	char *rname = fname;	707	char *rname = fname;
413	asprintf (&fname, "%s/%s", confbase, rname);	708	asprintf (&fname, "%s/%s", confbase, rname);
414	free (rname);	709	free (rname);
415	}	710	}
416		711
417	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	);
418	}	733	}
419		734
420	void	735	void
421	configuration::print ()	736	configuration::print ()
422	{	737	{
…		…
426	printf (_("MTU: %d\n"), mtu);	741	printf (_("MTU: %d\n"), mtu);
427	printf (_("rekeying interval: %d\n"), rekey);	742	printf (_("rekeying interval: %d\n"), rekey);
428	printf (_("keepalive interval: %d\n"), keepalive);	743	printf (_("keepalive interval: %d\n"), keepalive);
429	printf (_("interface: %s\n"), ifname);	744	printf (_("interface: %s\n"), ifname);
430	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	745	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
431	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	746	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
432	printf ("\n");	747	printf ("\n");
433		748
434	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	749	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
435	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	750	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
436		751
437	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	752	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
438	(*i)->print ();	753	(*i)->print ();
439		754
440	printf ("\n");	755	printf ("\n");
441	}	756	}
442		757
443	configuration::configuration ()	758	configuration::configuration ()
444	{	759	{
		760	asprintf (&confbase, "%s/gvpe", CONFDIR);
		761
445	init ();	762	init ();
446	}	763	}
447		764
448	configuration::~configuration ()	765	configuration::~configuration ()
449	{	766	{
450	cleanup ();	767	cleanup ();
451	}	768	}
452		769
453

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Comparing gvpe/src/conf.C (file contents): Revision 1.12 by pcg, Mon Apr 7 01:12:56 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 1.12 by pcg, Mon Apr 7 01:12:56 2003 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC