[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 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
35		44
36	#include "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	if (!strcmp (var, "global"))
		258	{
		259	node = &conf.default_node;
		260	return 0;
170	{	261	}
		262
		263	char *val = strtok (NULL, "\t\n\r =");
		264
		265	if (!val \|\| val[0] == '#')
		266	return _("no value given for variable, ignored");
		267
		268	else if (!strcmp (var, "on"))
		269	{
		270	if (::thisnode
		271	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		272	\|\| !strcmp (val, ::thisnode)))
		273	return parse_line (strtok (NULL, "\n\r"));
		274	}
		275
		276	else if (!strcmp (var, "include"))
		277	{
		278	char *fname = conf.config_filename (val);
		279	parse_file (fname);
		280	free (fname);
		281	}
		282
		283	// truly global
		284	else if (!strcmp (var, "loglevel"))
		285	{
		286	loglevel l = string_to_loglevel (val);
		287
		288	if (l == L_NONE)
		289	return _("unknown loglevel, ignored");
		290	}
		291	else if (!strcmp (var, "ip-proto"))
		292	conf.ip_proto = atoi (val);
		293	else if (!strcmp (var, "icmp-type"))
		294	{
		295	#if ENABLE_ICMP
		296	conf.icmp_type = atoi (val);
		297	#endif
		298	}
		299	else if (!strcmp (var, "chuser"))
		300	{
		301	struct passwd *pw = getpwnam (val);
		302	if (!pw)
		303	return _("user specified for chuser not found");
		304
		305	conf.change_uid = pw->pw_uid;
		306	conf.change_gid = pw->pw_gid;
		307	}
		308	else if (!strcmp (var, "chuid"))
		309	conf.change_uid = atoi (val);
		310	else if (!strcmp (var, "chgid"))
		311	conf.change_gid = atoi (val);
		312	else if (!strcmp (var, "chroot"))
		313	free (conf.change_root), conf.change_root = strdup (val);
		314
		315	// per node
		316	else if (!strcmp (var, "node"))
		317	{
		318	node = conf.find_node (val);
		319
		320	if (!node)
		321	{
		322	conf.default_node.id++;
		323	node = new conf_node (conf.default_node);
		324	conf.nodes.push_back (node);
		325	node->nodename = strdup (val);
		326	}
		327	}
		328	else if (!strcmp (var, "private-key"))
		329	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		330	else if (!strcmp (var, "ifpersist"))
		331	parse_bool (conf.ifpersist, "ifpersist", true, false);
		332	else if (!strcmp (var, "ifname"))
		333	free (conf.ifname), conf.ifname = strdup (val);
		334	else if (!strcmp (var, "rekey"))
		335	conf.rekey = atoi (val);
		336	else if (!strcmp (var, "keepalive"))
		337	conf.keepalive = atoi (val);
		338	else if (!strcmp (var, "mtu"))
		339	conf.mtu = atoi (val);
		340	else if (!strcmp (var, "nfmark"))
		341	conf.nfmark = atoi (val);
		342	else if (!strcmp (var, "seed-device"))
		343	free (conf.seed_dev), conf.seed_dev = strdup (val);
		344	else if (!strcmp (var, "seed-interval"))
		345	conf.reseed = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-case-preserving"))
		393	{
		394	#if ENABLE_DNS
		395	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-host"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	free (conf.proxy_host), conf.proxy_host = strdup (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-port"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_port = atoi (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-auth"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		414	#endif
		415	}
		416
		417	/* node-specific, non-defaultable */
		418	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		419	free (node->hostname), node->hostname = strdup (val);
		420
		421	/* node-specific, defaultable */
		422	else if (!strcmp (var, "udp-port"))
		423	node->udp_port = atoi (val);
		424	else if (!strcmp (var, "tcp-port"))
		425	node->tcp_port = atoi (val);
		426	else if (!strcmp (var, "dns-hostname"))
		427	{
		428	#if ENABLE_DNS
		429	free (node->dns_hostname), node->dns_hostname = strdup (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-port"))
		433	{
		434	#if ENABLE_DNS
		435	node->dns_port = atoi (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-domain"))
		439	{
		440	#if ENABLE_DNS
		441	free (node->domain), node->domain = strdup (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "if-up-data"))
		445	free (node->if_up_data), node->if_up_data = strdup (val);
		446	else if (!strcmp (var, "router-priority"))
		447	node->routerprio = atoi (val);
		448	else if (!strcmp (var, "max-retry"))
		449	node->max_retry = atoi (val);
		450	else if (!strcmp (var, "connect"))
		451	{
		452	if (!strcmp (val, "ondemand"))
		453	node->connectmode = conf_node::C_ONDEMAND;
		454	else if (!strcmp (val, "never"))
		455	node->connectmode = conf_node::C_NEVER;
		456	else if (!strcmp (val, "always"))
		457	node->connectmode = conf_node::C_ALWAYS;
		458	else if (!strcmp (val, "disabled"))
		459	node->connectmode = conf_node::C_DISABLED;
		460	else
		461	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		462	}
		463	else if (!strcmp (var, "inherit-tos"))
		464	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		465	else if (!strcmp (var, "compress"))
		466	parse_bool (node->compress, "compress", true, false);
		467	// all these bool options really really cost a lot of executable size!
		468	else if (!strcmp (var, "enable-tcp"))
		469	{
		470	#if ENABLE_TCP
		471	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-icmp"))
		475	{
		476	#if ENABLE_ICMP
		477	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-dns"))
		481	{
		482	#if ENABLE_DNS
		483	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-udp"))
		487	{
		488	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		489	}
		490	else if (!strcmp (var, "enable-rawip"))
		491	{
		492	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		493	}
		494	else if (!strcmp (var, "allow-direct"))
		495	node->allow_direct.push_back (strdup (val));
		496	else if (!strcmp (var, "deny-direct"))
		497	node->deny_direct.push_back (strdup (val));
		498	else if (!strcmp (var, "max-ttl"))
		499	node->max_ttl = atof (val);
		500	else if (!strcmp (var, "max-queue"))
		501	node->max_queue = atoi (val);
		502
		503	// unknown or misplaced
		504	else
		505	return _("unknown configuration directive - ignored");
		506
		507	return 0;
		508	}
		509
		510	void
		511	conf_node::finalise ()
		512	{
		513	if (max_queue < 1)
		514	{
		515	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		516	max_queue = 1;
		517	}
		518
		519	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		520	{
		521	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		522	connectmode = C_ALWAYS;
		523	}
		524	}
		525
		526	void
		527	configuration_parser::parse_file (const char *fname)
		528	{
		529	if (FILE *f = fopen (fname, "r"))
		530	{
171	char line[16384];	531	char line [2048];
172	int lineno = 0;	532	int lineno = 0;
173	char var, val;
174	conf_node *node = &default_node;
175		533
176	while (fgets (line, sizeof (line), f))	534	while (fgets (line, sizeof (line), f))
177	{	535	{
178	lineno++;	536	lineno++;
179		537
180	{	538	const char *warn = parse_line (line);
181	char *end = line + strlen (line);
182		539
183	while (*end < ' ' && end >= line)	540	if (warn)
184	end--;	541	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	}	542	}
380		543
381	fclose (f);	544	fclose (f);
382	}	545	}
383	else	546	else
384	{	547	{
385	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	548	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
386	exit (1);	549	exit (EXIT_FAILURE);
387	}	550	}
		551	}
388		552
		553	configuration_parser::configuration_parser (configuration &conf,
		554	bool need_keys,
		555	int argc,
		556	char **argv)
		557	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		558	{
		559	char *fname;
		560
		561	conf.clear ();
		562	node = &conf.default_node;
		563
		564	asprintf (&fname, "%s/gvpe.conf", confbase);
		565	parse_file (fname);
389	free (fname);	566	free (fname);
390		567
391	fname = config_filename (prikeyfile, "hostkey");	568	fname = conf.config_filename (conf.prikeyfile, "hostkey");
392		569
393	f = fopen (fname, "r");	570	if (FILE *f = fopen (fname, "r"))
394	if (f)
395	{	571	{
396	rsa_key = RSA_new ();	572	conf.rsa_key = RSA_new ();
397		573
398	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	574	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
399	{	575	{
400	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	576	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));	577	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
402	exit (1);	578	exit (EXIT_FAILURE);
403	}	579	}
404		580
405	RSA_blinding_on (rsa_key, 0);	581	require (RSA_blinding_on (conf.rsa_key, 0));
406		582
407	fclose (f);	583	fclose (f);
408	}	584	}
409	else	585	else
410	{	586	{
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)	587	if (need_keys)
414	exit (1);	588	{
		589	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		590	exit (EXIT_FAILURE);
		591	}
415	}	592	}
416		593
417	free (fname);	594	free (fname);
418	}
419		595
		596	fname = conf.config_filename (conf.pidfilename);
		597	free (conf.pidfilename); conf.pidfilename = fname;
		598
		599	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		600	{
		601	conf_node node = i;
		602	char *fname;
		603	FILE *f;
		604
		605	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		606
		607	f = fopen (fname, "r");
		608	if (f)
		609	{
		610	node->rsa_key = RSA_new ();
		611
		612	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		613	{
		614	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		615	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		616	exit (EXIT_FAILURE);
		617	}
		618
		619	require (RSA_blinding_on (node->rsa_key, 0));
		620
		621	fclose (f);
		622	}
		623	else
		624	{
		625	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		626
		627	if (need_keys)
		628	exit (EXIT_FAILURE);
		629	}
		630
		631	free (fname);
		632
		633	(*i)->finalise ();
		634	}
		635
		636	if (::thisnode)
		637	{
		638	conf.thisnode = conf.find_node (::thisnode);
		639
		640	if (need_keys)
		641	{
		642	if (!conf.thisnode)
		643	{
		644	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		645	exit (EXIT_FAILURE);
		646	}
		647
		648	if (conf.rsa_key && conf.thisnode->rsa_key)
		649	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		650	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		651	{
		652	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		653	exit (EXIT_FAILURE);
		654	}
		655	}
		656	}
		657
		658	parse_argv ();
		659	}
		660
		661	void
		662	configuration_parser::parse_argv ()
		663	{
		664	for (int i = 0; i < argc; ++i)
		665	{
		666	char *v = argv [i];
		667
		668	if (!*v)
		669	continue;
		670
		671	char *enode = v;
		672
		673	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		674	enode++;
		675
		676	if (*enode != '.')
		677	enode = 0;
		678
		679	if (enode)
		680	{
		681	char *val = strdup (v);
		682	val [enode - v] = 0;
		683	node = conf.find_node (val);
		684	free (val);
		685
		686	if (!node)
		687	{
		688	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		689	continue;
		690	}
		691	}
		692	else
		693	node = &conf.default_node;
		694
		695	const char *warn = parse_line (enode ? enode + 1 : v);
		696
		697	if (warn)
		698	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		699	}
		700	}
		701
		702	char *
420	char configuration::config_filename (const char name, const char *dflt)	703	configuration::config_filename (const char name, const char dflt)
421	{	704	{
422	char *fname;	705	char *fname;
423		706
424	asprintf (&fname, name ? name : dflt, ::thisnode);	707	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
425		708
426	if (!ABSOLUTE_PATH (fname))	709	if (!ABSOLUTE_PATH (fname))
427	{	710	{
428	char *rname = fname;	711	char *rname = fname;
429	asprintf (&fname, "%s/%s", confbase, rname);	712	asprintf (&fname, "%s/%s", confbase, rname);
430	free (rname);	713	free (rname);
431	}	714	}
432		715
433	return fname;	716	return fname;
		717	}
		718
		719	void
		720	conf_node::print ()
		721	{
		722	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		723	id,
		724	id >> 8, id & 0xff,
		725	compress ? 'Y' : 'N',
		726	connectmode == C_ONDEMAND ? "ondemand"
		727	: connectmode == C_NEVER ? "never"
		728	: connectmode == C_ALWAYS ? "always"
		729	: connectmode == C_DISABLED ? "disabled"
		730	: "",
		731	nodename,
		732	protocols,
		733	hostname ? hostname : "",
		734	hostname ? ":" : "",
		735	hostname ? udp_port : 0
		736	);
434	}	737	}
435		738
436	void	739	void
437	configuration::print ()	740	configuration::print ()
438	{	741	{
…		…
445	printf (_("interface: %s\n"), ifname);	748	printf (_("interface: %s\n"), ifname);
446	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	749	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
447	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	750	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
448	printf ("\n");	751	printf ("\n");
449		752
450	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	753	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
451	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	754	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
452		755
453	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	756	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
454	(*i)->print ();	757	(*i)->print ();
455		758
456	printf ("\n");	759	printf ("\n");
457	}	760	}
458		761
459	configuration::configuration ()	762	configuration::configuration ()
460	{	763	{
		764	asprintf (&confbase, "%s/gvpe", CONFDIR);
		765
461	init ();	766	init ();
462	}	767	}
463		768
464	configuration::~configuration ()	769	configuration::~configuration ()
465	{	770	{
466	cleanup ();	771	cleanup ();
467	}	772	}
468		773
469

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Comparing gvpe/src/conf.C (file contents): Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs. Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC