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

Comparing gvpe/src/conf.C (file contents):
Revision 1.39 by pcg, Sat Mar 26 03:16:24 2005 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) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
5	This file is part of GVPE.	5	This file is part of GVPE.
6		6
7	GVPE is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
8	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
9	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
10	(at your option) any later version.	10	option) any later version.
11		11
12	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
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15	GNU General Public License for more details.	15	Public License for more details.
16		16
17	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
18	along with gvpe; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
19	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.
20	*/	30	*/
21		31
22	#include "config.h"	32	#include "config.h"
23		33
24	#include <cstdio>	34	#include <cstdio>
28	#include <errno.h>	38	#include <errno.h>
29	#include <netdb.h>	39	#include <netdb.h>
30	#include <sys/stat.h>	40	#include <sys/stat.h>
31	#include <sys/types.h>	41	#include <sys/types.h>
32	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
33		44
34	#include "netcompat.h"	45	#include "netcompat.h"
35		46
36	#include <openssl/err.h>	47	#include <openssl/err.h>
37	#include <openssl/pem.h>	48	#include <openssl/pem.h>
…		…
47	char *thisnode;	58	char *thisnode;
48	char *identname;	59	char *identname;
49		60
50	struct configuration conf;	61	struct configuration conf;
51		62
		63	u8
52	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
53	{	65	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		71
60	return 0;	72	return 0;
61	}	73	}
62		74
		75	const char *
63	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
64	{	77	{
65	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	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	{
93	#if 0	113	#if 0
…		…
104	free (dns_hostname);	124	free (dns_hostname);
105	#endif	125	#endif
106	#endif	126	#endif
107	}	127	}
108		128
		129	void
109	void configuration::init ()	130	configuration::init ()
110	{	131	{
111	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
112		133
113	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
114	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
115	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
116	llevel = L_INFO;	138	llevel = L_INFO;
117	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
118	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
123	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
124	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
125	default_node.compress = true;	147	default_node.compress = true;
126	default_node.protocols = 0;	148	default_node.protocols = 0;
127	default_node.max_retry = DEFAULT_MAX_RETRY;	149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
128	default_node.if_up_data = strdup ("");	152	default_node.if_up_data = strdup ("");
129		153
130	#if ENABLE_DNS	154	#if ENABLE_DNS
131	default_node.dns_port = 0; // default is 0 == client	155	default_node.dns_port = 0; // default is 0 == client
132		156
		157	dns_case_preserving = true;
133	dns_forw_host = strdup ("127.0.0.1");	158	dns_forw_host = strdup ("127.0.0.1");
134	dns_forw_port = 53;	159	dns_forw_port = 53;
135	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;	160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
136	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;	161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
137	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;	162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
138	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;	163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
139	#endif	164	#endif
140		165
141	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
142	}	169	}
143		170
		171	void
144	void configuration::cleanup()	172	configuration::cleanup ()
145	{	173	{
146	if (rsa_key)	174	if (rsa_key)
147	RSA_free (rsa_key);	175	RSA_free (rsa_key);
148		176
149	rsa_key = 0;	177	rsa_key = 0;
150		178
		179	free (seed_dev); seed_dev = 0;
151	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
152	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
153	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
154	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
155	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
156	#endif	185	#endif
157	#if ENABLE_DNS	186	#if ENABLE_DNS
158	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
159	#endif	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;
160	}	194	}
161		195
162	void	196	void
163	configuration::clear_config ()	197	configuration::clear ()
164	{	198	{
165	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)
166	delete *i;	200	delete *i;
167		201
168	nodes.clear ();	202	nodes.clear ();
169		203
170	cleanup ();	204	cleanup ();
171	init ();	205	init ();
172	}	206	}
		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	//}
173		223
174	#define parse_bool(target,name,trueval,falseval) do { \	224	#define parse_bool(target,name,trueval,falseval) do { \
175	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
176	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
177	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
178	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
179	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
180	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
181	else \	231	else \
182	slog (L_WARN, \
183	_("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"); \
184	name, var, fname, lineno); \
185	} while (0)	233	} while (0)
186		234
187	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
188	{	237	{
189	char *fname;	238	{
190	FILE *f;	239	char *end = line + strlen (line);
191		240
192	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
193		243
194	asprintf (&fname, "%s/gvpe.conf", confbase);	244	*++end = 0;
195	f = fopen (fname, "r");	245	}
196		246
197	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;
198	{	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	{
199	char line[16384];	531	char line [2048];
200	int lineno = 0;	532	int lineno = 0;
201	char var, val;
202	conf_node *node = &default_node;
203		533
204	while (fgets (line, sizeof (line), f))	534	while (fgets (line, sizeof (line), f))
205	{	535	{
206	lineno++;	536	lineno++;
207		537
208	{	538	const char *warn = parse_line (line);
209	char *end = line + strlen (line);
210		539
211	while (*end < ' ' && end >= line)	540	if (warn)
212	end--;	541	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
213
214	*++end = 0;
215	}
216
217	char *tok = line;
218
219	retry:
220	var = strtok (tok, "\t =");
221	tok = 0;
222
223	if (!var \|\| !var[0])
224	continue; /* no tokens on this line */
225
226	if (var[0] == '#')
227	continue; /* comment: ignore */
228
229	val = strtok (NULL, "\t\n\r =");
230
231	if (!val \|\| val[0] == '#')
232	{
233	slog (L_WARN,
234	_("no value for variable `%s', at '%s' line %d, skipping."),
235	var, fname, lineno);
236	continue;
237	}
238
239	if (!strcmp (var, "on"))
240	{
241	if (!::thisnode
242	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
243	\|\| !strcmp (val, ::thisnode))
244	goto retry;
245
246	continue;
247	}
248
249	// truly global
250	if (!strcmp (var, "loglevel"))
251	{
252	loglevel l = string_to_loglevel (val);
253
254	if (l != L_NONE)
255	llevel = l;
256	else
257	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
258	}
259	else if (!strcmp (var, "ip-proto"))
260	ip_proto = atoi (val);
261	else if (!strcmp (var, "icmp-type"))
262	{
263	#if ENABLE_ICMP
264	icmp_type = atoi (val);
265	#endif
266	}
267
268	// per config
269	else if (!strcmp (var, "node"))
270	{
271	default_node.id++;
272
273	node = new conf_node (default_node);
274
275	nodes.push_back (node);
276
277	node->nodename = strdup (val);
278
279	{
280	char *fname;
281	FILE *f;
282
283	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
284
285	f = fopen (fname, "r");
286	if (f)
287	{
288	node->rsa_key = RSA_new ();
289
290	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
291	{
292	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
293	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
294	exit (EXIT_FAILURE);
295	}
296
297	require (RSA_blinding_on (node->rsa_key, 0));
298
299	fclose (f);
300	}
301	else
302	{
303	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
304
305	if (need_keys)
306	exit (EXIT_FAILURE);
307	}
308
309	free (fname);
310	}
311
312	if (::thisnode && !strcmp (node->nodename, ::thisnode))
313	thisnode = node;
314	}
315	else if (!strcmp (var, "private-key"))
316	free (prikeyfile), prikeyfile = strdup (val);
317	else if (!strcmp (var, "ifpersist"))
318	parse_bool (ifpersist, "ifpersist", true, false);
319	else if (!strcmp (var, "ifname"))
320	free (ifname), ifname = strdup (val);
321	else if (!strcmp (var, "rekey"))
322	rekey = atoi (val);
323	else if (!strcmp (var, "keepalive"))
324	keepalive = atoi (val);
325	else if (!strcmp (var, "mtu"))
326	mtu = atoi (val);
327	else if (!strcmp (var, "if-up"))
328	free (script_if_up), script_if_up = strdup (val);
329	else if (!strcmp (var, "node-up"))
330	free (script_node_up), script_node_up = strdup (val);
331	else if (!strcmp (var, "node-down"))
332	free (script_node_down), script_node_down = strdup (val);
333	else if (!strcmp (var, "pid-file"))
334	free (pidfilename), pidfilename = strdup (val);
335	else if (!strcmp (var, "dns-forw-host"))
336	{
337	#if ENABLE_DNS
338	free (dns_forw_host), dns_forw_host = strdup (val);
339	#endif
340	}
341	else if (!strcmp (var, "dns-forw-port"))
342	{
343	#if ENABLE_DNS
344	dns_forw_port = atoi (val);
345	#endif
346	}
347	else if (!strcmp (var, "dns-timeout-factor"))
348	{
349	#if ENABLE_DNS
350	dns_timeout_factor = atof (val);
351	#endif
352	}
353	else if (!strcmp (var, "dns-send-interval"))
354	{
355	#if ENABLE_DNS
356	dns_send_interval = atoi (val);
357	#endif
358	}
359	else if (!strcmp (var, "dns-overlap-factor"))
360	{
361	#if ENABLE_DNS
362	dns_overlap_factor = atof (val);
363	#endif
364	}
365	else if (!strcmp (var, "dns-max-outstanding"))
366	{
367	#if ENABLE_DNS
368	dns_max_outstanding = atoi (val);
369	#endif
370	}
371	else if (!strcmp (var, "http-proxy-host"))
372	{
373	#if ENABLE_HTTP_PROXY
374	free (proxy_host), proxy_host = strdup (val);
375	#endif
376	}
377	else if (!strcmp (var, "http-proxy-port"))
378	{
379	#if ENABLE_HTTP_PROXY
380	proxy_port = atoi (val);
381	#endif
382	}
383	else if (!strcmp (var, "http-proxy-auth"))
384	{
385	#if ENABLE_HTTP_PROXY
386	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
387	#endif
388	}
389
390	/* node-specific, non-defaultable */
391	else if (node != &default_node && !strcmp (var, "hostname"))
392	free (node->hostname), node->hostname = strdup (val);
393
394	/* node-specific, defaultable */
395	else if (!strcmp (var, "udp-port"))
396	node->udp_port = atoi (val);
397	else if (!strcmp (var, "tcp-port"))
398	node->tcp_port = atoi (val);
399	else if (!strcmp (var, "dns-hostname"))
400	{
401	#if ENABLE_DNS
402	free (node->dns_hostname), node->dns_hostname = strdup (val);
403	#endif
404	}
405	else if (!strcmp (var, "dns-port"))
406	{
407	#if ENABLE_DNS
408	node->dns_port = atoi (val);
409	#endif
410	}
411	else if (!strcmp (var, "dns-domain"))
412	{
413	#if ENABLE_DNS
414	free (node->domain), node->domain = strdup (val);
415	#endif
416	}
417	else if (!strcmp (var, "if-up-data"))
418	free (node->if_up_data), node->if_up_data = strdup (val);
419	else if (!strcmp (var, "router-priority"))
420	node->routerprio = atoi (val);
421	else if (!strcmp (var, "max-retry"))
422	node->max_retry = atoi (val);
423	else if (!strcmp (var, "connect"))
424	{
425	if (!strcmp (val, "ondemand"))
426	node->connectmode = conf_node::C_ONDEMAND;
427	else if (!strcmp (val, "never"))
428	node->connectmode = conf_node::C_NEVER;
429	else if (!strcmp (val, "always"))
430	node->connectmode = conf_node::C_ALWAYS;
431	else if (!strcmp (val, "disabled"))
432	node->connectmode = conf_node::C_DISABLED;
433	else
434	slog (L_WARN,
435	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
436	var, fname, lineno);
437	}
438	else if (!strcmp (var, "inherit-tos"))
439	parse_bool (node->inherit_tos, "inherit-tos", true, false);
440	else if (!strcmp (var, "compress"))
441	parse_bool (node->compress, "compress", true, false);
442	// all these bool options really really cost a lot of executable size!
443	else if (!strcmp (var, "enable-tcp"))
444	{
445	#if ENABLE_TCP
446	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
447	#endif
448	}
449	else if (!strcmp (var, "enable-icmp"))
450	{
451	#if ENABLE_ICMP
452	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
453	#endif
454	}
455	else if (!strcmp (var, "enable-dns"))
456	{
457	#if ENABLE_DNS
458	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
459	#endif
460	}
461	else if (!strcmp (var, "enable-udp"))
462	{
463	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
464	}
465	else if (!strcmp (var, "enable-rawip"))
466	{
467	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
468	}
469
470	// unknown or misplaced
471	else
472	slog (L_WARN,
473	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
474	var, fname, lineno);
475	}	542	}
476		543
477	fclose (f);	544	fclose (f);
478	}	545	}
479	else	546	else
480	{	547	{
481	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));
482	exit (EXIT_FAILURE);	549	exit (EXIT_FAILURE);
483	}	550	}
		551	}
484		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);
485	free (fname);	566	free (fname);
486		567
487	fname = config_filename (prikeyfile, "hostkey");	568	fname = conf.config_filename (conf.prikeyfile, "hostkey");
488		569
489	f = fopen (fname, "r");	570	if (FILE *f = fopen (fname, "r"))
490	if (f)
491	{	571	{
492	rsa_key = RSA_new ();	572	conf.rsa_key = RSA_new ();
493		573
494	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	574	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
495	{	575	{
496	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	576	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
497	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));
498	exit (EXIT_FAILURE);	578	exit (EXIT_FAILURE);
499	}	579	}
500		580
501	require (RSA_blinding_on (rsa_key, 0));	581	require (RSA_blinding_on (conf.rsa_key, 0));
502		582
503	fclose (f);	583	fclose (f);
504	}	584	}
505	else	585	else
506	{	586	{
507	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
508
509	if (need_keys)	587	if (need_keys)
		588	{
		589	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
510	exit (EXIT_FAILURE);	590	exit (EXIT_FAILURE);
511	}
512
513	if (need_keys && ::thisnode
514	&& rsa_key && thisnode && thisnode->rsa_key)
515	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
516	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
517	{
518	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
519	exit (EXIT_FAILURE);
520	}	591	}
		592	}
521		593
522	free (fname);	594	free (fname);
523	}
524		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 *
525	char configuration::config_filename (const char name, const char *dflt)	703	configuration::config_filename (const char name, const char dflt)
526	{	704	{
527	char *fname;	705	char *fname;
528		706
529	asprintf (&fname, name ? name : dflt, ::thisnode);	707	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
530		708
531	if (!ABSOLUTE_PATH (fname))	709	if (!ABSOLUTE_PATH (fname))
532	{	710	{
533	char *rname = fname;	711	char *rname = fname;
534	asprintf (&fname, "%s/%s", confbase, rname);	712	asprintf (&fname, "%s/%s", confbase, rname);
535	free (rname);	713	free (rname);
536	}	714	}
537		715
538	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	);
539	}	737	}
540		738
541	void	739	void
542	configuration::print ()	740	configuration::print ()
543	{	741	{
…		…
550	printf (_("interface: %s\n"), ifname);	748	printf (_("interface: %s\n"), ifname);
551	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	749	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
552	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);
553	printf ("\n");	751	printf ("\n");
554		752
555	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	753	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
556	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	754	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
557		755
558	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	756	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
559	(*i)->print ();	757	(*i)->print ();
560		758
561	printf ("\n");	759	printf ("\n");
…		…
571	configuration::~configuration ()	769	configuration::~configuration ()
572	{	770	{
573	cleanup ();	771	cleanup ();
574	}	772	}
575		773
576

Diff Legend

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

Comparing gvpe/src/conf.C (file contents): Revision 1.39 by pcg, Sat Mar 26 03:16:24 2005 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 1.39 by pcg, Sat Mar 26 03:16:24 2005 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC