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

Comparing gvpe/src/conf.C (file contents):
Revision 1.38 by pcg, Wed Mar 23 17:03:58 2005 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) 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	{
		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);
98	#if ENABLE_DNS	122	#if ENABLE_DNS
99	free (domain);	123	free (domain);
100	free (dns_hostname);	124	free (dns_hostname);
101	#endif	125	#endif
		126	#endif
102	}	127	}
103		128
		129	void
104	void configuration::init ()	130	configuration::init ()
105	{	131	{
106	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
107		133
108	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
109	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	138	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
113	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	147	default_node.compress = true;
121	default_node.protocols = 0;	148	default_node.protocols = 0;
122	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;
		152	default_node.if_up_data = strdup ("");
123		153
124	#if ENABLE_DNS	154	#if ENABLE_DNS
125	default_node.dns_port = 0; // default is 0 == client	155	default_node.dns_port = 0; // default is 0 == client
126		156
		157	dns_case_preserving = true;
127	dns_forw_host = strdup ("127.0.0.1");	158	dns_forw_host = strdup ("127.0.0.1");
128	dns_forw_port = 53;	159	dns_forw_port = 53;
129	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;	160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
130	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;	161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
131	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;	162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
132	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;	163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
133	#endif	164	#endif
134		165
135	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
136	}	169	}
137		170
		171	void
138	void configuration::cleanup()	172	configuration::cleanup ()
139	{	173	{
140	if (rsa_key)	174	if (rsa_key)
141	RSA_free (rsa_key);	175	RSA_free (rsa_key);
142		176
143	rsa_key = 0;	177	rsa_key = 0;
144		178
		179	free (seed_dev); seed_dev = 0;
145	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
146	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
147	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
148	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
149	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
150	#endif	185	#endif
151	#if ENABLE_DNS	186	#if ENABLE_DNS
152	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
153	#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;
154	}	194	}
155		195
156	void	196	void
157	configuration::clear_config ()	197	configuration::clear ()
158	{	198	{
159	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)
160	delete *i;	200	delete *i;
161		201
162	nodes.clear ();	202	nodes.clear ();
163		203
164	cleanup ();	204	cleanup ();
165	init ();	205	init ();
166	}	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	//}
167		223
168	#define parse_bool(target,name,trueval,falseval) do { \	224	#define parse_bool(target,name,trueval,falseval) do { \
169	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
170	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
171	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
172	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
173	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
174	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
175	else \	231	else \
176	slog (L_WARN, \
177	_("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"); \
178	name, var, fname, lineno); \
179	} while (0)	233	} while (0)
180		234
181	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
182	{	237	{
183	char *fname;	238	{
184	FILE *f;	239	char *end = line + strlen (line);
185		240
186	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
187		243
188	asprintf (&fname, "%s/gvpe.conf", confbase);	244	*++end = 0;
189	f = fopen (fname, "r");	245	}
190		246
191	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"));
192	{	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	{
193	char line[16384];	527	char line [2048];
194	int lineno = 0;	528	int lineno = 0;
195	char var, val;
196	conf_node *node = &default_node;
197		529
198	while (fgets (line, sizeof (line), f))	530	while (fgets (line, sizeof (line), f))
199	{	531	{
200	lineno++;	532	lineno++;
201		533
202	{	534	const char *warn = parse_line (line);
203	char *end = line + strlen (line);
204		535
205	while (*end < ' ' && end >= line)	536	if (warn)
206	end--;	537	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
207
208	*++end = 0;
209	}
210
211	char *tok = line;
212
213	retry:
214	var = strtok (tok, "\t =");
215	tok = 0;
216
217	if (!var \|\| !var[0])
218	continue; /* no tokens on this line */
219
220	if (var[0] == '#')
221	continue; /* comment: ignore */
222
223	val = strtok (NULL, "\t\n\r =");
224
225	if (!val \|\| val[0] == '#')
226	{
227	slog (L_WARN,
228	_("no value for variable `%s', at '%s' line %d, skipping."),
229	var, fname, lineno);
230	continue;
231	}
232
233	if (!strcmp (var, "on"))
234	{
235	if (!::thisnode
236	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
237	\|\| !strcmp (val, ::thisnode))
238	goto retry;
239
240	continue;
241	}
242
243	// truly global
244	if (!strcmp (var, "loglevel"))
245	{
246	loglevel l = string_to_loglevel (val);
247
248	if (l != L_NONE)
249	llevel = l;
250	else
251	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
252	}
253	else if (!strcmp (var, "ip-proto"))
254	ip_proto = atoi (val);
255	else if (!strcmp (var, "icmp-type"))
256	{
257	#if ENABLE_ICMP
258	icmp_type = atoi (val);
259	#endif
260	}
261
262	// per config
263	else if (!strcmp (var, "node"))
264	{
265	default_node.id++;
266
267	node = new conf_node (default_node);
268
269	nodes.push_back (node);
270
271	node->nodename = strdup (val);
272
273	{
274	char *fname;
275	FILE *f;
276
277	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
278
279	f = fopen (fname, "r");
280	if (f)
281	{
282	node->rsa_key = RSA_new ();
283
284	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
285	{
286	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
287	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
288	exit (EXIT_FAILURE);
289	}
290
291	require (RSA_blinding_on (node->rsa_key, 0));
292
293	fclose (f);
294	}
295	else
296	{
297	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
298
299	if (need_keys)
300	exit (EXIT_FAILURE);
301	}
302
303	free (fname);
304	}
305
306	if (::thisnode && !strcmp (node->nodename, ::thisnode))
307	thisnode = node;
308	}
309	else if (!strcmp (var, "private-key"))
310	free (prikeyfile), prikeyfile = strdup (val);
311	else if (!strcmp (var, "ifpersist"))
312	parse_bool (ifpersist, "ifpersist", true, false);
313	else if (!strcmp (var, "ifname"))
314	free (ifname), ifname = strdup (val);
315	else if (!strcmp (var, "rekey"))
316	rekey = atoi (val);
317	else if (!strcmp (var, "keepalive"))
318	keepalive = atoi (val);
319	else if (!strcmp (var, "mtu"))
320	mtu = atoi (val);
321	else if (!strcmp (var, "if-up"))
322	free (script_if_up), script_if_up = strdup (val);
323	else if (!strcmp (var, "node-up"))
324	free (script_node_up), script_node_up = strdup (val);
325	else if (!strcmp (var, "node-down"))
326	free (script_node_down), script_node_down = strdup (val);
327	else if (!strcmp (var, "pid-file"))
328	free (pidfilename), pidfilename = strdup (val);
329	else if (!strcmp (var, "dns-forw-host"))
330	{
331	#if ENABLE_DNS
332	free (dns_forw_host), dns_forw_host = strdup (val);
333	#endif
334	}
335	else if (!strcmp (var, "dns-forw-port"))
336	{
337	#if ENABLE_DNS
338	dns_forw_port = atoi (val);
339	#endif
340	}
341	else if (!strcmp (var, "dns-timeout-factor"))
342	{
343	#if ENABLE_DNS
344	dns_timeout_factor = atof (val);
345	#endif
346	}
347	else if (!strcmp (var, "dns-send-interval"))
348	{
349	#if ENABLE_DNS
350	dns_send_interval = atoi (val);
351	#endif
352	}
353	else if (!strcmp (var, "dns-overlap-factor"))
354	{
355	#if ENABLE_DNS
356	dns_overlap_factor = atof (val);
357	#endif
358	}
359	else if (!strcmp (var, "dns-max-outstanding"))
360	{
361	#if ENABLE_DNS
362	dns_max_outstanding = atoi (val);
363	#endif
364	}
365	else if (!strcmp (var, "http-proxy-host"))
366	{
367	#if ENABLE_HTTP_PROXY
368	free (proxy_host), proxy_host = strdup (val);
369	#endif
370	}
371	else if (!strcmp (var, "http-proxy-port"))
372	{
373	#if ENABLE_HTTP_PROXY
374	proxy_port = atoi (val);
375	#endif
376	}
377	else if (!strcmp (var, "http-proxy-auth"))
378	{
379	#if ENABLE_HTTP_PROXY
380	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
381	#endif
382	}
383
384	/* node-specific, non-defaultable */
385	else if (node != &default_node && !strcmp (var, "hostname"))
386	free (node->hostname), node->hostname = strdup (val);
387
388	/* node-specific, defaultable */
389	else if (!strcmp (var, "udp-port"))
390	node->udp_port = atoi (val);
391	else if (!strcmp (var, "tcp-port"))
392	node->tcp_port = atoi (val);
393	else if (!strcmp (var, "dns-hostname"))
394	{
395	#if ENABLE_DNS
396	free (node->dns_hostname), node->dns_hostname = strdup (val);
397	#endif
398	}
399	else if (!strcmp (var, "dns-port"))
400	{
401	#if ENABLE_DNS
402	node->dns_port = atoi (val);
403	#endif
404	}
405	else if (!strcmp (var, "dns-domain"))
406	{
407	#if ENABLE_DNS
408	free (node->domain), node->domain = strdup (val);
409	#endif
410	}
411	else if (!strcmp (var, "router-priority"))
412	node->routerprio = atoi (val);
413	else if (!strcmp (var, "max-retry"))
414	node->max_retry = atoi (val);
415	else if (!strcmp (var, "connect"))
416	{
417	if (!strcmp (val, "ondemand"))
418	node->connectmode = conf_node::C_ONDEMAND;
419	else if (!strcmp (val, "never"))
420	node->connectmode = conf_node::C_NEVER;
421	else if (!strcmp (val, "always"))
422	node->connectmode = conf_node::C_ALWAYS;
423	else if (!strcmp (val, "disabled"))
424	node->connectmode = conf_node::C_DISABLED;
425	else
426	slog (L_WARN,
427	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
428	var, fname, lineno);
429	}
430	else if (!strcmp (var, "inherit-tos"))
431	parse_bool (node->inherit_tos, "inherit-tos", true, false);
432	else if (!strcmp (var, "compress"))
433	parse_bool (node->compress, "compress", true, false);
434	// all these bool options really really cost a lot of executable size!
435	else if (!strcmp (var, "enable-tcp"))
436	{
437	#if ENABLE_TCP
438	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
439	#endif
440	}
441	else if (!strcmp (var, "enable-icmp"))
442	{
443	#if ENABLE_ICMP
444	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
445	#endif
446	}
447	else if (!strcmp (var, "enable-dns"))
448	{
449	#if ENABLE_DNS
450	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
451	#endif
452	}
453	else if (!strcmp (var, "enable-udp"))
454	{
455	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
456	}
457	else if (!strcmp (var, "enable-rawip"))
458	{
459	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
460	}
461
462	// unknown or misplaced
463	else
464	slog (L_WARN,
465	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
466	var, fname, lineno);
467	}	538	}
468		539
469	fclose (f);	540	fclose (f);
470	}	541	}
471	else	542	else
472	{	543	{
473	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));
474	exit (EXIT_FAILURE);	545	exit (EXIT_FAILURE);
475	}	546	}
		547	}
476		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);
477	free (fname);	562	free (fname);
478		563
479	fname = config_filename (prikeyfile, "hostkey");	564	fname = conf.config_filename (conf.prikeyfile, "hostkey");
480		565
481	f = fopen (fname, "r");	566	if (FILE *f = fopen (fname, "r"))
482	if (f)
483	{	567	{
484	rsa_key = RSA_new ();	568	conf.rsa_key = RSA_new ();
485		569
486	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	570	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
487	{	571	{
488	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	572	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
489	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));
490	exit (EXIT_FAILURE);	574	exit (EXIT_FAILURE);
491	}	575	}
492		576
493	require (RSA_blinding_on (rsa_key, 0));	577	require (RSA_blinding_on (conf.rsa_key, 0));
494		578
495	fclose (f);	579	fclose (f);
496	}	580	}
497	else	581	else
498	{	582	{
499	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
500
501	if (need_keys)	583	if (need_keys)
		584	{
		585	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
502	exit (EXIT_FAILURE);	586	exit (EXIT_FAILURE);
503	}
504
505	if (need_keys && ::thisnode
506	&& rsa_key && thisnode && thisnode->rsa_key)
507	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
508	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
509	{
510	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
511	exit (EXIT_FAILURE);
512	}	587	}
		588	}
513		589
514	free (fname);	590	free (fname);
515	}
516		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 *
517	char configuration::config_filename (const char name, const char *dflt)	699	configuration::config_filename (const char name, const char dflt)
518	{	700	{
519	char *fname;	701	char *fname;
520		702
521	asprintf (&fname, name ? name : dflt, ::thisnode);	703	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
522		704
523	if (!ABSOLUTE_PATH (fname))	705	if (!ABSOLUTE_PATH (fname))
524	{	706	{
525	char *rname = fname;	707	char *rname = fname;
526	asprintf (&fname, "%s/%s", confbase, rname);	708	asprintf (&fname, "%s/%s", confbase, rname);
527	free (rname);	709	free (rname);
528	}	710	}
529		711
530	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	);
531	}	733	}
532		734
533	void	735	void
534	configuration::print ()	736	configuration::print ()
535	{	737	{
…		…
542	printf (_("interface: %s\n"), ifname);	744	printf (_("interface: %s\n"), ifname);
543	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	745	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
544	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	746	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
545	printf ("\n");	747	printf ("\n");
546		748
547	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	749	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
548	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	750	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
549		751
550	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	752	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
551	(*i)->print ();	753	(*i)->print ();
552		754
553	printf ("\n");	755	printf ("\n");
…		…
563	configuration::~configuration ()	765	configuration::~configuration ()
564	{	766	{
565	cleanup ();	767	cleanup ();
566	}	768	}
567		769
568

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Comparing gvpe/src/conf.C (file contents): Revision 1.38 by pcg, Wed Mar 23 17:03:58 2005 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 1.38 by pcg, Wed Mar 23 17:03:58 2005 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC