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

Comparing gvpe/src/conf.C (file contents):
Revision 1.27 by pcg, Fri Jun 11 15:56:31 2004 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) 2003-2004 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
6	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
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	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
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	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
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	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.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <cstdio>	34	#include <cstdio>
26	#include <errno.h>	38	#include <errno.h>
27	#include <netdb.h>	39	#include <netdb.h>
28	#include <sys/stat.h>	40	#include <sys/stat.h>
29	#include <sys/types.h>	41	#include <sys/types.h>
30	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
31		44
32	#include "netcompat.h"	45	#include "netcompat.h"
33		46
34	#include <openssl/err.h>	47	#include <openssl/err.h>
35	#include <openssl/pem.h>	48	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	50	#include <openssl/rand.h>
38	#include <openssl/bn.h>	51	#include <openssl/bn.h>
39		52
40	#include "gettext.h"
41
42	#include "conf.h"	53	#include "conf.h"
43	#include "slog.h"	54	#include "slog.h"
44	#include "util.h"	55	#include "util.h"
45		56
46	char *confbase;	57	char *confbase;
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);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
98	}	127	}
99		128
		129	void
100	void configuration::init ()	130	configuration::init ()
101	{	131	{
102	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
103		133
104	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
105	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	138	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
109	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
112		143
113	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	147	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
118	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 ("");
119		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
120	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
121	}	169	}
122		170
		171	void
123	void configuration::cleanup()	172	configuration::cleanup ()
124	{	173	{
125	if (rsa_key)	174	if (rsa_key)
126	RSA_free (rsa_key);	175	RSA_free (rsa_key);
127		176
128	rsa_key = 0;	177	rsa_key = 0;
129		178
		179	free (seed_dev); seed_dev = 0;
130	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
131	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
132	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
133	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
134	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
135	#endif	185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
136	}	194	}
137		195
138	void	196	void
139	configuration::clear_config ()	197	configuration::clear ()
140	{	198	{
141	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)
142	delete *i;	200	delete *i;
143		201
144	nodes.clear ();	202	nodes.clear ();
145		203
146	cleanup ();	204	cleanup ();
147	init ();	205	init ();
148	}	206	}
149		207
		208	conf_node *
		209	configuration::find_node (const char *name)
		210	{
		211	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		212	if (!strcmp ((*i)->nodename, name))
		213	return *i;
		214
		215	return 0;
		216	}
		217
		218	//static bool
		219	//is_true (const char *name)
		220	//{
		221	//re
		222	//}
		223
150	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
151	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
152	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
153	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
154	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
155	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
156	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
157	else \	231	else \
158	slog (L_WARN, \
159	_("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"); \
160	name, var, fname, lineno);	233	} while (0)
161		234
162	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
163	{	237	{
164	char *fname;	238	{
165	FILE *f;	239	char *end = line + strlen (line);
166		240
167	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
168		243
169	asprintf (&fname, "%s/gvpe.conf", confbase);	244	*++end = 0;
170	f = fopen (fname, "r");	245	}
171		246
172	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"));
173	{	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	{
174	char line[16384];	527	char line [2048];
175	int lineno = 0;	528	int lineno = 0;
176	char var, val;
177	conf_node *node = &default_node;
178		529
179	while (fgets (line, sizeof (line), f))	530	while (fgets (line, sizeof (line), f))
180	{	531	{
181	lineno++;	532	lineno++;
182		533
183	{	534	const char *warn = parse_line (line);
184	char *end = line + strlen (line);
185		535
186	while (*end < ' ' && end >= line)	536	if (warn)
187	end--;	537	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
188
189	*++end = 0;
190	}
191
192	char *tok = line;
193
194	retry:
195	var = strtok (tok, "\t =");
196	tok = 0;
197
198	if (!var \|\| !var[0])
199	continue; /* no tokens on this line */
200
201	if (var[0] == '#')
202	continue; /* comment: ignore */
203
204	val = strtok (NULL, "\t\n\r =");
205
206	if (!val \|\| val[0] == '#')
207	{
208	slog (L_WARN,
209	_("no value for variable `%s', at '%s' line %d"),
210	var, fname, lineno);
211	break;
212	}
213
214	if (!strcmp (var, "on"))
215	{
216	if (!::thisnode
217	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
218	\|\| !strcmp (val, ::thisnode))
219	goto retry;
220
221	continue;
222	}
223
224	// truly global
225	if (!strcmp (var, "loglevel"))
226	{
227	loglevel l = string_to_loglevel (val);
228
229	if (l != L_NONE)
230	llevel = l;
231	else
232	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
233	}
234	else if (!strcmp (var, "ip-proto"))
235	ip_proto = atoi (val);
236	else if (!strcmp (var, "icmp-type"))
237	{
238	#if ENABLE_ICMP
239	icmp_type = atoi (val);
240	#endif
241	}
242
243	// per config
244	else if (!strcmp (var, "node"))
245	{
246	default_node.id++;
247
248	node = new conf_node (default_node);
249
250	nodes.push_back (node);
251
252	node->nodename = strdup (val);
253
254	{
255	char *fname;
256	FILE *f;
257
258	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
259
260	f = fopen (fname, "r");
261	if (f)
262	{
263	node->rsa_key = RSA_new ();
264
265	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
266	{
267	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
268	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
269	exit (EXIT_FAILURE);
270	}
271
272	require (RSA_blinding_on (node->rsa_key, 0));
273
274	fclose (f);
275	}
276	else
277	{
278	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
279
280	if (need_keys)
281	exit (EXIT_FAILURE);
282	}
283
284	free (fname);
285	}
286
287	if (::thisnode && !strcmp (node->nodename, ::thisnode))
288	thisnode = node;
289	}
290	else if (!strcmp (var, "private-key"))
291	free (prikeyfile), prikeyfile = strdup (val);
292	else if (!strcmp (var, "ifpersist"))
293	{
294	parse_bool (ifpersist, "ifpersist", true, false);
295	}
296	else if (!strcmp (var, "ifname"))
297	free (ifname), ifname = strdup (val);
298	else if (!strcmp (var, "rekey"))
299	rekey = atoi (val);
300	else if (!strcmp (var, "keepalive"))
301	keepalive = atoi (val);
302	else if (!strcmp (var, "mtu"))
303	mtu = atoi (val);
304	else if (!strcmp (var, "if-up"))
305	free (script_if_up), script_if_up = strdup (val);
306	else if (!strcmp (var, "node-up"))
307	free (script_node_up), script_node_up = strdup (val);
308	else if (!strcmp (var, "node-down"))
309	free (script_node_down), script_node_down = strdup (val);
310	else if (!strcmp (var, "pid-file"))
311	free (pidfilename), pidfilename = strdup (val);
312	else if (!strcmp (var, "http-proxy-host"))
313	{
314	#if ENABLE_HTTP_PROXY
315	free (proxy_host), proxy_host = strdup (val);
316	#endif
317	}
318	else if (!strcmp (var, "http-proxy-port"))
319	{
320	#if ENABLE_HTTP_PROXY
321	proxy_port = atoi (val);
322	#endif
323	}
324	else if (!strcmp (var, "http-proxy-auth"))
325	{
326	#if ENABLE_HTTP_PROXY
327	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
328	#endif
329	}
330
331	/* node-specific, non-defaultable */
332	else if (node != &default_node && !strcmp (var, "hostname"))
333	free (node->hostname), node->hostname = strdup (val);
334
335	/* node-specific, defaultable */
336	else if (!strcmp (var, "udp-port"))
337	node->udp_port = atoi (val);
338	else if (!strcmp (var, "tcp-port"))
339	node->tcp_port = atoi (val);
340	else if (!strcmp (var, "dns-port"))
341	node->dns_port = atoi (val);
342	else if (!strcmp (var, "router-priority"))
343	node->routerprio = atoi (val);
344	else if (!strcmp (var, "max-retry"))
345	node->max_retry = atoi (val);
346	else if (!strcmp (var, "connect"))
347	{
348	if (!strcmp (val, "ondemand"))
349	node->connectmode = conf_node::C_ONDEMAND;
350	else if (!strcmp (val, "never"))
351	node->connectmode = conf_node::C_NEVER;
352	else if (!strcmp (val, "always"))
353	node->connectmode = conf_node::C_ALWAYS;
354	else if (!strcmp (val, "disabled"))
355	node->connectmode = conf_node::C_DISABLED;
356	else
357	slog (L_WARN,
358	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
359	var, fname, lineno);
360	}
361	else if (!strcmp (var, "inherit-tos"))
362	{
363	parse_bool (node->inherit_tos, "inherit-tos", true, false);
364	}
365	else if (!strcmp (var, "compress"))
366	{
367	parse_bool (node->compress, "compress", true, false);
368	}
369	// all these bool options really really cost a lot of executable size!
370	else if (!strcmp (var, "enable-tcp"))
371	{
372	#if ENABLE_TCP
373	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
374	#endif
375	}
376	else if (!strcmp (var, "enable-icmp"))
377	{
378	#if ENABLE_ICMP
379	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
380	#endif
381	}
382	else if (!strcmp (var, "enable-dns"))
383	{
384	#if ENABLE_DNS
385	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
386	#endif
387	}
388	else if (!strcmp (var, "enable-udp"))
389	{
390	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
391	}
392	else if (!strcmp (var, "enable-rawip"))
393	{;
394	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
395	}
396
397	// unknown or misplaced
398	else
399	slog (L_WARN,
400	_("unknown or misplaced variable `%s', at '%s' line %d"),
401	var, fname, lineno);
402	}	538	}
403		539
404	fclose (f);	540	fclose (f);
405	}	541	}
406	else	542	else
407	{	543	{
408	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));
409	exit (EXIT_FAILURE);	545	exit (EXIT_FAILURE);
410	}	546	}
		547	}
411		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);
412	free (fname);	562	free (fname);
413		563
414	fname = config_filename (prikeyfile, "hostkey");	564	fname = conf.config_filename (conf.prikeyfile, "hostkey");
415		565
416	f = fopen (fname, "r");	566	if (FILE *f = fopen (fname, "r"))
417	if (f)
418	{	567	{
419	rsa_key = RSA_new ();	568	conf.rsa_key = RSA_new ();
420		569
421	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	570	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
422	{	571	{
423	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	572	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
424	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));
425	exit (EXIT_FAILURE);	574	exit (EXIT_FAILURE);
426	}	575	}
427		576
428	require (RSA_blinding_on (rsa_key, 0));	577	require (RSA_blinding_on (conf.rsa_key, 0));
429		578
430	fclose (f);	579	fclose (f);
431	}	580	}
432	else	581	else
433	{	582	{
434	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
435
436	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));
437	exit (EXIT_FAILURE);	586	exit (EXIT_FAILURE);
438	}
439
440	if (need_keys && ::thisnode
441	&& rsa_key && thisnode && thisnode->rsa_key)
442	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
443	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
444	{
445	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
446	exit (EXIT_FAILURE);
447	}	587	}
		588	}
448		589
449	free (fname);	590	free (fname);
450	}
451		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 *
452	char configuration::config_filename (const char name, const char *dflt)	699	configuration::config_filename (const char name, const char dflt)
453	{	700	{
454	char *fname;	701	char *fname;
455		702
456	asprintf (&fname, name ? name : dflt, ::thisnode);	703	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
457		704
458	if (!ABSOLUTE_PATH (fname))	705	if (!ABSOLUTE_PATH (fname))
459	{	706	{
460	char *rname = fname;	707	char *rname = fname;
461	asprintf (&fname, "%s/%s", confbase, rname);	708	asprintf (&fname, "%s/%s", confbase, rname);
462	free (rname);	709	free (rname);
463	}	710	}
464		711
465	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	);
466	}	733	}
467		734
468	void	735	void
469	configuration::print ()	736	configuration::print ()
470	{	737	{
…		…
477	printf (_("interface: %s\n"), ifname);	744	printf (_("interface: %s\n"), ifname);
478	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	745	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
479	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);
480	printf ("\n");	747	printf ("\n");
481		748
482	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	749	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
483	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	750	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
484		751
485	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	752	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
486	(*i)->print ();	753	(*i)->print ();
487		754
488	printf ("\n");	755	printf ("\n");
…		…
498	configuration::~configuration ()	765	configuration::~configuration ()
499	{	766	{
500	cleanup ();	767	cleanup ();
501	}	768	}
502		769
503

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Comparing gvpe/src/conf.C (file contents): Revision 1.27 by pcg, Fri Jun 11 15:56:31 2004 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 1.27 by pcg, Fri Jun 11 15:56:31 2004 UTC vs.
Revision 1.62 by root, Wed Jul 17 16:40:57 2013 UTC