[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 1.65 by root, Fri Oct 11 07:56:07 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, "serial"))
		292	strncpy (conf.serial, val, sizeof (conf.serial));
		293	else if (!strcmp (var, "ip-proto"))
		294	conf.ip_proto = atoi (val);
		295	else if (!strcmp (var, "icmp-type"))
		296	{
		297	#if ENABLE_ICMP
		298	conf.icmp_type = atoi (val);
		299	#endif
		300	}
		301	else if (!strcmp (var, "chuser"))
		302	{
		303	struct passwd *pw = getpwnam (val);
		304	if (!pw)
		305	return _("user specified for chuser not found");
		306
		307	conf.change_uid = pw->pw_uid;
		308	conf.change_gid = pw->pw_gid;
		309	}
		310	else if (!strcmp (var, "chuid"))
		311	conf.change_uid = atoi (val);
		312	else if (!strcmp (var, "chgid"))
		313	conf.change_gid = atoi (val);
		314	else if (!strcmp (var, "chroot"))
		315	free (conf.change_root), conf.change_root = strdup (val);
		316
		317	// per node
		318	else if (!strcmp (var, "node"))
		319	{
		320	node = conf.find_node (val);
		321
		322	if (!node)
		323	{
		324	conf.default_node.id++;
		325	node = new conf_node (conf.default_node);
		326	conf.nodes.push_back (node);
		327	node->nodename = strdup (val);
		328	}
		329	}
		330	else if (!strcmp (var, "private-key"))
		331	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		332	else if (!strcmp (var, "ifpersist"))
		333	parse_bool (conf.ifpersist, "ifpersist", true, false);
		334	else if (!strcmp (var, "ifname"))
		335	free (conf.ifname), conf.ifname = strdup (val);
		336	else if (!strcmp (var, "rekey"))
		337	conf.rekey = atoi (val);
		338	else if (!strcmp (var, "keepalive"))
		339	conf.keepalive = atoi (val);
		340	else if (!strcmp (var, "mtu"))
		341	conf.mtu = atoi (val);
		342	else if (!strcmp (var, "nfmark"))
		343	conf.nfmark = atoi (val);
		344	else if (!strcmp (var, "seed-device"))
		345	free (conf.seed_dev), conf.seed_dev = strdup (val);
		346	else if (!strcmp (var, "seed-interval"))
		347	conf.reseed = atoi (val);
		348	else if (!strcmp (var, "if-up"))
		349	free (conf.script_if_up), conf.script_if_up = strdup (val);
		350	else if (!strcmp (var, "node-up"))
		351	free (conf.script_node_up), conf.script_node_up = strdup (val);
		352	else if (!strcmp (var, "node-change"))
		353	free (conf.script_node_change), conf.script_node_change = strdup (val);
		354	else if (!strcmp (var, "node-down"))
		355	free (conf.script_node_down), conf.script_node_down = strdup (val);
		356	else if (!strcmp (var, "pid-file"))
		357	free (conf.pidfilename), conf.pidfilename = strdup (val);
		358	else if (!strcmp (var, "dns-forw-host"))
		359	{
		360	#if ENABLE_DNS
		361	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		362	#endif
		363	}
		364	else if (!strcmp (var, "dns-forw-port"))
		365	{
		366	#if ENABLE_DNS
		367	conf.dns_forw_port = atoi (val);
		368	#endif
		369	}
		370	else if (!strcmp (var, "dns-timeout-factor"))
		371	{
		372	#if ENABLE_DNS
		373	conf.dns_timeout_factor = atof (val);
		374	#endif
		375	}
		376	else if (!strcmp (var, "dns-send-interval"))
		377	{
		378	#if ENABLE_DNS
		379	conf.dns_send_interval = atoi (val);
		380	#endif
		381	}
		382	else if (!strcmp (var, "dns-overlap-factor"))
		383	{
		384	#if ENABLE_DNS
		385	conf.dns_overlap_factor = atof (val);
		386	#endif
		387	}
		388	else if (!strcmp (var, "dns-max-outstanding"))
		389	{
		390	#if ENABLE_DNS
		391	conf.dns_max_outstanding = atoi (val);
		392	#endif
		393	}
		394	else if (!strcmp (var, "dns-case-preserving"))
		395	{
		396	#if ENABLE_DNS
		397	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		398	#endif
		399	}
		400	else if (!strcmp (var, "http-proxy-host"))
		401	{
		402	#if ENABLE_HTTP_PROXY
		403	free (conf.proxy_host), conf.proxy_host = strdup (val);
		404	#endif
		405	}
		406	else if (!strcmp (var, "http-proxy-port"))
		407	{
		408	#if ENABLE_HTTP_PROXY
		409	conf.proxy_port = atoi (val);
		410	#endif
		411	}
		412	else if (!strcmp (var, "http-proxy-auth"))
		413	{
		414	#if ENABLE_HTTP_PROXY
		415	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		416	#endif
		417	}
		418
		419	/* node-specific, non-defaultable */
		420	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		421	free (node->hostname), node->hostname = strdup (val);
		422
		423	/* node-specific, defaultable */
		424	else if (!strcmp (var, "udp-port"))
		425	node->udp_port = atoi (val);
		426	else if (!strcmp (var, "tcp-port"))
		427	node->tcp_port = atoi (val);
		428	else if (!strcmp (var, "dns-hostname"))
		429	{
		430	#if ENABLE_DNS
		431	free (node->dns_hostname), node->dns_hostname = strdup (val);
		432	#endif
		433	}
		434	else if (!strcmp (var, "dns-port"))
		435	{
		436	#if ENABLE_DNS
		437	node->dns_port = atoi (val);
		438	#endif
		439	}
		440	else if (!strcmp (var, "dns-domain"))
		441	{
		442	#if ENABLE_DNS
		443	free (node->domain), node->domain = strdup (val);
		444	#endif
		445	}
		446	else if (!strcmp (var, "if-up-data"))
		447	free (node->if_up_data), node->if_up_data = strdup (val);
		448	else if (!strcmp (var, "router-priority"))
		449	node->routerprio = atoi (val);
		450	else if (!strcmp (var, "max-retry"))
		451	node->max_retry = atoi (val);
		452	else if (!strcmp (var, "connect"))
		453	{
		454	if (!strcmp (val, "ondemand"))
		455	node->connectmode = conf_node::C_ONDEMAND;
		456	else if (!strcmp (val, "never"))
		457	node->connectmode = conf_node::C_NEVER;
		458	else if (!strcmp (val, "always"))
		459	node->connectmode = conf_node::C_ALWAYS;
		460	else if (!strcmp (val, "disabled"))
		461	node->connectmode = conf_node::C_DISABLED;
		462	else
		463	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		464	}
		465	else if (!strcmp (var, "inherit-tos"))
		466	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		467	else if (!strcmp (var, "compress"))
		468	parse_bool (node->compress, "compress", true, false);
		469	else if (!strcmp (var, "low-power"))
		470	parse_bool (node->low_power, "low-power", true, false);
		471	// all these bool options really really cost a lot of executable size!
		472	else if (!strcmp (var, "enable-tcp"))
		473	{
		474	#if ENABLE_TCP
		475	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		476	#endif
		477	}
		478	else if (!strcmp (var, "enable-icmp"))
		479	{
		480	#if ENABLE_ICMP
		481	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		482	#endif
		483	}
		484	else if (!strcmp (var, "enable-dns"))
		485	{
		486	#if ENABLE_DNS
		487	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		488	#endif
		489	}
		490	else if (!strcmp (var, "enable-udp"))
		491	{
		492	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		493	}
		494	else if (!strcmp (var, "enable-rawip"))
		495	{
		496	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		497	}
		498	else if (!strcmp (var, "allow-direct"))
		499	node->allow_direct.push_back (strdup (val));
		500	else if (!strcmp (var, "deny-direct"))
		501	node->deny_direct.push_back (strdup (val));
		502	else if (!strcmp (var, "max-ttl"))
		503	node->max_ttl = atof (val);
		504	else if (!strcmp (var, "max-queue"))
		505	node->max_queue = atoi (val);
		506
		507	// unknown or misplaced
		508	else
		509	return _("unknown configuration directive - ignored");
		510
		511	return 0;
		512	}
		513
		514	void
		515	conf_node::finalise ()
		516	{
		517	if (max_queue < 1)
		518	{
		519	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		520	max_queue = 1;
		521	}
		522
		523	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		524	{
		525	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		526	connectmode = C_ALWAYS;
		527	}
		528	}
		529
		530	void
		531	configuration_parser::parse_file (const char *fname)
		532	{
		533	if (FILE *f = fopen (fname, "r"))
		534	{
199	char line[16384];	535	char line [2048];
200	int lineno = 0;	536	int lineno = 0;
201	char var, val;
202	conf_node *node = &default_node;
203		537
204	while (fgets (line, sizeof (line), f))	538	while (fgets (line, sizeof (line), f))
205	{	539	{
206	lineno++;	540	lineno++;
207		541
208	{	542	const char *warn = parse_line (line);
209	char *end = line + strlen (line);
210		543
211	while (*end < ' ' && end >= line)	544	if (warn)
212	end--;	545	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	}	546	}
476		547
477	fclose (f);	548	fclose (f);
478	}	549	}
479	else	550	else
480	{	551	{
481	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	552	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
482	exit (EXIT_FAILURE);	553	exit (EXIT_FAILURE);
483	}	554	}
		555	}
484		556
		557	configuration_parser::configuration_parser (configuration &conf,
		558	bool need_keys,
		559	int argc,
		560	char **argv)
		561	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		562	{
		563	char *fname;
		564
		565	conf.clear ();
		566	node = &conf.default_node;
		567
		568	asprintf (&fname, "%s/gvpe.conf", confbase);
		569	parse_file (fname);
485	free (fname);	570	free (fname);
486		571
487	fname = config_filename (prikeyfile, "hostkey");	572	fname = conf.config_filename (conf.prikeyfile, "hostkey");
488		573
489	f = fopen (fname, "r");	574	if (FILE *f = fopen (fname, "r"))
490	if (f)
491	{	575	{
492	rsa_key = RSA_new ();	576	conf.rsa_key = RSA_new ();
493		577
494	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	578	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
495	{	579	{
496	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	580	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));	581	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
498	exit (EXIT_FAILURE);	582	exit (EXIT_FAILURE);
499	}	583	}
500		584
501	require (RSA_blinding_on (rsa_key, 0));	585	require (RSA_blinding_on (conf.rsa_key, 0));
502		586
503	fclose (f);	587	fclose (f);
504	}	588	}
505	else	589	else
506	{	590	{
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)	591	if (need_keys)
		592	{
		593	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
510	exit (EXIT_FAILURE);	594	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	}	595	}
		596	}
521		597
522	free (fname);	598	free (fname);
523	}
524		599
		600	fname = conf.config_filename (conf.pidfilename);
		601	free (conf.pidfilename); conf.pidfilename = fname;
		602
		603	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		604	{
		605	conf_node node = i;
		606	char *fname;
		607	FILE *f;
		608
		609	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		610
		611	f = fopen (fname, "r");
		612	if (f)
		613	{
		614	node->rsa_key = RSA_new ();
		615
		616	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		617	{
		618	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		619	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		620	exit (EXIT_FAILURE);
		621	}
		622
		623	require (RSA_blinding_on (node->rsa_key, 0));
		624
		625	fclose (f);
		626	}
		627	else
		628	{
		629	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		630
		631	if (need_keys)
		632	exit (EXIT_FAILURE);
		633	}
		634
		635	free (fname);
		636
		637	(*i)->finalise ();
		638	}
		639
		640	if (::thisnode)
		641	{
		642	conf.thisnode = conf.find_node (::thisnode);
		643
		644	if (need_keys)
		645	{
		646	if (!conf.thisnode)
		647	{
		648	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		649	exit (EXIT_FAILURE);
		650	}
		651
		652	if (conf.rsa_key && conf.thisnode->rsa_key)
		653	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		654	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		655	{
		656	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		657	exit (EXIT_FAILURE);
		658	}
		659	}
		660	}
		661
		662	parse_argv ();
		663	}
		664
		665	void
		666	configuration_parser::parse_argv ()
		667	{
		668	for (int i = 0; i < argc; ++i)
		669	{
		670	char *v = argv [i];
		671
		672	if (!*v)
		673	continue;
		674
		675	char *enode = v;
		676
		677	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		678	enode++;
		679
		680	if (*enode != '.')
		681	enode = 0;
		682
		683	if (enode)
		684	{
		685	char *val = strdup (v);
		686	val [enode - v] = 0;
		687	node = conf.find_node (val);
		688	free (val);
		689
		690	if (!node)
		691	{
		692	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		693	continue;
		694	}
		695	}
		696	else
		697	node = &conf.default_node;
		698
		699	const char *warn = parse_line (enode ? enode + 1 : v);
		700
		701	if (warn)
		702	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		703	}
		704	}
		705
		706	char *
525	char configuration::config_filename (const char name, const char *dflt)	707	configuration::config_filename (const char name, const char dflt)
526	{	708	{
527	char *fname;	709	char *fname;
528		710
529	asprintf (&fname, name ? name : dflt, ::thisnode);	711	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
530		712
531	if (!ABSOLUTE_PATH (fname))	713	if (!ABSOLUTE_PATH (fname))
532	{	714	{
533	char *rname = fname;	715	char *rname = fname;
534	asprintf (&fname, "%s/%s", confbase, rname);	716	asprintf (&fname, "%s/%s", confbase, rname);
535	free (rname);	717	free (rname);
536	}	718	}
537		719
538	return fname;	720	return fname;
		721	}
		722
		723	void
		724	conf_node::print ()
		725	{
		726	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		727	id,
		728	id >> 8, id & 0xff,
		729	compress ? 'Y' : 'N',
		730	connectmode == C_ONDEMAND ? "ondemand"
		731	: connectmode == C_NEVER ? "never"
		732	: connectmode == C_ALWAYS ? "always"
		733	: connectmode == C_DISABLED ? "disabled"
		734	: "",
		735	nodename,
		736	protocols,
		737	hostname ? hostname : "",
		738	hostname ? ":" : "",
		739	hostname ? udp_port : 0
		740	);
539	}	741	}
540		742
541	void	743	void
542	configuration::print ()	744	configuration::print ()
543	{	745	{
…		…
550	printf (_("interface: %s\n"), ifname);	752	printf (_("interface: %s\n"), ifname);
551	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	753	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
552	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	754	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
553	printf ("\n");	755	printf ("\n");
554		756
555	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	757	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
556	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	758	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
557		759
558	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	760	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
559	(*i)->print ();	761	(*i)->print ();
560		762
561	printf ("\n");	763	printf ("\n");
…		…
571	configuration::~configuration ()	773	configuration::~configuration ()
572	{	774	{
573	cleanup ();	775	cleanup ();
574	}	776	}
575		777
576

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Comparing gvpe/src/conf.C (file contents): Revision 1.39 by pcg, Sat Mar 26 03:16:24 2005 UTC vs. Revision 1.65 by root, Fri Oct 11 07:56:07 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 1.65 by root, Fri Oct 11 07:56:07 2013 UTC