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

Comparing gvpe/src/conf.C (file contents):
Revision 1.25 by pcg, Mon May 10 20:13:09 2004 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 2003-2004 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	asprintf (&confbase, "%s/vpe", CONFDIR);
103
104	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
105		133
106	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
107	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
108	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
109	llevel = L_INFO;	138	llevel = L_INFO;
110	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
111	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
114		143
115	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
116	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
117	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
118	default_node.compress = true;	147	default_node.compress = true;
119	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
		149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
120		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
121	conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
122	}	169	}
123		170
		171	void
124	void configuration::cleanup()	172	configuration::cleanup ()
125	{	173	{
126	if (rsa_key)	174	if (rsa_key)
127	RSA_free (rsa_key);	175	RSA_free (rsa_key);
128		176
129	rsa_key = 0;	177	rsa_key = 0;
130		178
		179	free (seed_dev); seed_dev = 0;
131	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
132	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
133	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
134	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
135	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
136	#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;
137	}	194	}
138		195
139	void	196	void
140	configuration::clear_config ()	197	configuration::clear ()
141	{	198	{
142	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)
143	delete *i;	200	delete *i;
144		201
145	nodes.clear ();	202	nodes.clear ();
146		203
147	cleanup ();	204	cleanup ();
148	init ();	205	init ();
149	}	206	}
150		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
151	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
152	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
153	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
154	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
155	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
156	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
157	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
158	else \	231	else \
159	slog (L_WARN, \
160	_("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"); \
161	name, var, fname, lineno);	233	} while (0)
162		234
163	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
164	{	237	{
165	char *fname;	238	{
166	FILE *f;	239	char *end = line + strlen (line);
167		240
168	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
169		243
170	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
171	f = fopen (fname, "r");	245	}
172		246
173	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;
174	{	261	}
		262
		263	char *val = strtok (NULL, "\t\n\r =");
		264
		265	if (!val \|\| val[0] == '#')
		266	return _("no value given for variable, ignored");
		267
		268	else if (!strcmp (var, "on"))
		269	{
		270	if (::thisnode
		271	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		272	\|\| !strcmp (val, ::thisnode)))
		273	return parse_line (strtok (NULL, "\n\r"));
		274	}
		275
		276	else if (!strcmp (var, "include"))
		277	{
		278	char *fname = conf.config_filename (val);
		279	parse_file (fname);
		280	free (fname);
		281	}
		282
		283	// truly global
		284	else if (!strcmp (var, "loglevel"))
		285	{
		286	loglevel l = string_to_loglevel (val);
		287
		288	if (l == L_NONE)
		289	return _("unknown loglevel, ignored");
		290	}
		291	else if (!strcmp (var, "ip-proto"))
		292	conf.ip_proto = atoi (val);
		293	else if (!strcmp (var, "icmp-type"))
		294	{
		295	#if ENABLE_ICMP
		296	conf.icmp_type = atoi (val);
		297	#endif
		298	}
		299	else if (!strcmp (var, "chuser"))
		300	{
		301	struct passwd *pw = getpwnam (val);
		302	if (!pw)
		303	return _("user specified for chuser not found");
		304
		305	conf.change_uid = pw->pw_uid;
		306	conf.change_gid = pw->pw_gid;
		307	}
		308	else if (!strcmp (var, "chuid"))
		309	conf.change_uid = atoi (val);
		310	else if (!strcmp (var, "chgid"))
		311	conf.change_gid = atoi (val);
		312	else if (!strcmp (var, "chroot"))
		313	free (conf.change_root), conf.change_root = strdup (val);
		314
		315	// per node
		316	else if (!strcmp (var, "node"))
		317	{
		318	node = conf.find_node (val);
		319
		320	if (!node)
		321	{
		322	conf.default_node.id++;
		323	node = new conf_node (conf.default_node);
		324	conf.nodes.push_back (node);
		325	node->nodename = strdup (val);
		326	}
		327	}
		328	else if (!strcmp (var, "private-key"))
		329	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		330	else if (!strcmp (var, "ifpersist"))
		331	parse_bool (conf.ifpersist, "ifpersist", true, false);
		332	else if (!strcmp (var, "ifname"))
		333	free (conf.ifname), conf.ifname = strdup (val);
		334	else if (!strcmp (var, "rekey"))
		335	conf.rekey = atoi (val);
		336	else if (!strcmp (var, "keepalive"))
		337	conf.keepalive = atoi (val);
		338	else if (!strcmp (var, "mtu"))
		339	conf.mtu = atoi (val);
		340	else if (!strcmp (var, "nfmark"))
		341	conf.nfmark = atoi (val);
		342	else if (!strcmp (var, "seed-device"))
		343	free (conf.seed_dev), conf.seed_dev = strdup (val);
		344	else if (!strcmp (var, "seed-interval"))
		345	conf.reseed = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-case-preserving"))
		393	{
		394	#if ENABLE_DNS
		395	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-host"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	free (conf.proxy_host), conf.proxy_host = strdup (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-port"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_port = atoi (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-auth"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		414	#endif
		415	}
		416
		417	/* node-specific, non-defaultable */
		418	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		419	free (node->hostname), node->hostname = strdup (val);
		420
		421	/* node-specific, defaultable */
		422	else if (!strcmp (var, "udp-port"))
		423	node->udp_port = atoi (val);
		424	else if (!strcmp (var, "tcp-port"))
		425	node->tcp_port = atoi (val);
		426	else if (!strcmp (var, "dns-hostname"))
		427	{
		428	#if ENABLE_DNS
		429	free (node->dns_hostname), node->dns_hostname = strdup (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-port"))
		433	{
		434	#if ENABLE_DNS
		435	node->dns_port = atoi (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-domain"))
		439	{
		440	#if ENABLE_DNS
		441	free (node->domain), node->domain = strdup (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "if-up-data"))
		445	free (node->if_up_data), node->if_up_data = strdup (val);
		446	else if (!strcmp (var, "router-priority"))
		447	node->routerprio = atoi (val);
		448	else if (!strcmp (var, "max-retry"))
		449	node->max_retry = atoi (val);
		450	else if (!strcmp (var, "connect"))
		451	{
		452	if (!strcmp (val, "ondemand"))
		453	node->connectmode = conf_node::C_ONDEMAND;
		454	else if (!strcmp (val, "never"))
		455	node->connectmode = conf_node::C_NEVER;
		456	else if (!strcmp (val, "always"))
		457	node->connectmode = conf_node::C_ALWAYS;
		458	else if (!strcmp (val, "disabled"))
		459	node->connectmode = conf_node::C_DISABLED;
		460	else
		461	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		462	}
		463	else if (!strcmp (var, "inherit-tos"))
		464	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		465	else if (!strcmp (var, "compress"))
		466	parse_bool (node->compress, "compress", true, false);
		467	// all these bool options really really cost a lot of executable size!
		468	else if (!strcmp (var, "enable-tcp"))
		469	{
		470	#if ENABLE_TCP
		471	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-icmp"))
		475	{
		476	#if ENABLE_ICMP
		477	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-dns"))
		481	{
		482	#if ENABLE_DNS
		483	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-udp"))
		487	{
		488	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		489	}
		490	else if (!strcmp (var, "enable-rawip"))
		491	{
		492	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		493	}
		494	else if (!strcmp (var, "allow-direct"))
		495	node->allow_direct.push_back (strdup (val));
		496	else if (!strcmp (var, "deny-direct"))
		497	node->deny_direct.push_back (strdup (val));
		498	else if (!strcmp (var, "max-ttl"))
		499	node->max_ttl = atof (val);
		500	else if (!strcmp (var, "max-queue"))
		501	node->max_queue = atoi (val);
		502
		503	// unknown or misplaced
		504	else
		505	return _("unknown configuration directive - ignored");
		506
		507	return 0;
		508	}
		509
		510	void
		511	conf_node::finalise ()
		512	{
		513	if (max_queue < 1)
		514	{
		515	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		516	max_queue = 1;
		517	}
		518
		519	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		520	{
		521	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		522	connectmode = C_ALWAYS;
		523	}
		524	}
		525
		526	void
		527	configuration_parser::parse_file (const char *fname)
		528	{
		529	if (FILE *f = fopen (fname, "r"))
		530	{
175	char line[16384];	531	char line [2048];
176	int lineno = 0;	532	int lineno = 0;
177	char var, val;
178	conf_node *node = &default_node;
179		533
180	while (fgets (line, sizeof (line), f))	534	while (fgets (line, sizeof (line), f))
181	{	535	{
182	lineno++;	536	lineno++;
183		537
184	{	538	const char *warn = parse_line (line);
185	char *end = line + strlen (line);
186		539
187	while (*end < ' ' && end >= line)	540	if (warn)
188	end--;	541	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
189
190	*++end = 0;
191	}
192
193	char *tok = line;
194
195	retry:
196	var = strtok (tok, "\t =");
197	tok = 0;
198
199	if (!var \|\| !var[0])
200	continue; /* no tokens on this line */
201
202	if (var[0] == '#')
203	continue; /* comment: ignore */
204
205	val = strtok (NULL, "\t\n\r =");
206
207	if (!val \|\| val[0] == '#')
208	{
209	slog (L_WARN,
210	_("no value for variable `%s', at '%s' line %d"),
211	var, fname, lineno);
212	break;
213	}
214
215	if (!strcmp (var, "on"))
216	{
217	if (!::thisnode
218	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
219	\|\| !strcmp (val, ::thisnode))
220	goto retry;
221
222	continue;
223	}
224
225	// truly global
226	if (!strcmp (var, "loglevel"))
227	{
228	loglevel l = string_to_loglevel (val);
229
230	if (l != L_NONE)
231	llevel = l;
232	else
233	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
234	}
235	else if (!strcmp (var, "ip-proto"))
236	ip_proto = atoi (val);
237	else if (!strcmp (var, "icmp-type"))
238	{
239	#if ENABLE_ICMP
240	icmp_type = atoi (val);
241	#endif
242	}
243
244	// per config
245	else if (!strcmp (var, "node"))
246	{
247	default_node.id++;
248
249	node = new conf_node (default_node);
250
251	nodes.push_back (node);
252
253	node->nodename = strdup (val);
254
255	{
256	char *fname;
257	FILE *f;
258
259	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
260
261	f = fopen (fname, "r");
262	if (f)
263	{
264	node->rsa_key = RSA_new ();
265
266	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
267	{
268	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
269	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
270	exit (EXIT_FAILURE);
271	}
272
273	require (RSA_blinding_on (node->rsa_key, 0));
274
275	fclose (f);
276	}
277	else
278	{
279	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
280
281	if (need_keys)
282	exit (EXIT_FAILURE);
283	}
284
285	free (fname);
286	}
287
288	if (::thisnode && !strcmp (node->nodename, ::thisnode))
289	thisnode = node;
290	}
291	else if (!strcmp (var, "private-key"))
292	free (prikeyfile), prikeyfile = strdup (val);
293	else if (!strcmp (var, "ifpersist"))
294	{
295	parse_bool (ifpersist, "ifpersist", true, false);
296	}
297	else if (!strcmp (var, "ifname"))
298	free (ifname), ifname = strdup (val);
299	else if (!strcmp (var, "rekey"))
300	rekey = atoi (val);
301	else if (!strcmp (var, "keepalive"))
302	keepalive = atoi (val);
303	else if (!strcmp (var, "mtu"))
304	mtu = atoi (val);
305	else if (!strcmp (var, "if-up"))
306	free (script_if_up), script_if_up = strdup (val);
307	else if (!strcmp (var, "node-up"))
308	free (script_node_up), script_node_up = strdup (val);
309	else if (!strcmp (var, "node-down"))
310	free (script_node_down), script_node_down = strdup (val);
311	else if (!strcmp (var, "pid-file"))
312	free (pidfilename), pidfilename = strdup (val);
313	else if (!strcmp (var, "http-proxy-host"))
314	{
315	#if ENABLE_HTTP_PROXY
316	free (proxy_host), proxy_host = strdup (val);
317	#endif
318	}
319	else if (!strcmp (var, "http-proxy-port"))
320	{
321	#if ENABLE_HTTP_PROXY
322	proxy_port = atoi (val);
323	#endif
324	}
325	else if (!strcmp (var, "http-proxy-auth"))
326	{
327	#if ENABLE_HTTP_PROXY
328	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
329	#endif
330	}
331
332	/* node-specific, non-defaultable */
333	else if (node != &default_node && !strcmp (var, "hostname"))
334	free (node->hostname), node->hostname = strdup (val);
335
336	/* node-specific, defaultable */
337	else if (!strcmp (var, "udp-port"))
338	node->udp_port = atoi (val);
339	else if (!strcmp (var, "tcp-port"))
340	node->tcp_port = atoi (val);
341	else if (!strcmp (var, "dns-port"))
342	node->dns_port = atoi (val);
343	else if (!strcmp (var, "router-priority"))
344	node->routerprio = atoi (val);
345	else if (!strcmp (var, "connect"))
346	{
347	if (!strcmp (val, "ondemand"))
348	node->connectmode = conf_node::C_ONDEMAND;
349	else if (!strcmp (val, "never"))
350	node->connectmode = conf_node::C_NEVER;
351	else if (!strcmp (val, "always"))
352	node->connectmode = conf_node::C_ALWAYS;
353	else if (!strcmp (val, "disabled"))
354	node->connectmode = conf_node::C_DISABLED;
355	else
356	slog (L_WARN,
357	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
358	var, fname, lineno);
359	}
360	else if (!strcmp (var, "inherit-tos"))
361	{
362	parse_bool (node->inherit_tos, "inherit-tos", true, false);
363	}
364	else if (!strcmp (var, "compress"))
365	{
366	parse_bool (node->compress, "compress", true, false);
367	}
368	// all these bool options really really cost a lot of executable size!
369	else if (!strcmp (var, "enable-tcp"))
370	{
371	#if ENABLE_TCP
372	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
373	#endif
374	}
375	else if (!strcmp (var, "enable-icmp"))
376	{
377	#if ENABLE_ICMP
378	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
379	#endif
380	}
381	else if (!strcmp (var, "enable-dns"))
382	{
383	#if ENABLE_DNS
384	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
385	#endif
386	}
387	else if (!strcmp (var, "enable-udp"))
388	{
389	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
390	}
391	else if (!strcmp (var, "enable-rawip"))
392	{;
393	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
394	}
395
396	// unknown or misplaced
397	else
398	slog (L_WARN,
399	_("unknown or misplaced variable `%s', at '%s' line %d"),
400	var, fname, lineno);
401	}	542	}
402		543
403	fclose (f);	544	fclose (f);
404	}	545	}
405	else	546	else
406	{	547	{
407	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	548	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
408	exit (EXIT_FAILURE);	549	exit (EXIT_FAILURE);
409	}	550	}
		551	}
410		552
		553	configuration_parser::configuration_parser (configuration &conf,
		554	bool need_keys,
		555	int argc,
		556	char **argv)
		557	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		558	{
		559	char *fname;
		560
		561	conf.clear ();
		562	node = &conf.default_node;
		563
		564	asprintf (&fname, "%s/gvpe.conf", confbase);
		565	parse_file (fname);
411	free (fname);	566	free (fname);
412		567
413	fname = config_filename (prikeyfile, "hostkey");	568	fname = conf.config_filename (conf.prikeyfile, "hostkey");
414		569
415	f = fopen (fname, "r");	570	if (FILE *f = fopen (fname, "r"))
416	if (f)
417	{	571	{
418	rsa_key = RSA_new ();	572	conf.rsa_key = RSA_new ();
419		573
420	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	574	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
421	{	575	{
422	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	576	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
423	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	577	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
424	exit (EXIT_FAILURE);	578	exit (EXIT_FAILURE);
425	}	579	}
426		580
427	require (RSA_blinding_on (rsa_key, 0));	581	require (RSA_blinding_on (conf.rsa_key, 0));
428		582
429	fclose (f);	583	fclose (f);
430	}	584	}
431	else	585	else
432	{	586	{
433	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
434
435	if (need_keys)	587	if (need_keys)
		588	{
		589	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
436	exit (EXIT_FAILURE);	590	exit (EXIT_FAILURE);
437	}
438
439	if (need_keys && ::thisnode
440	&& rsa_key && thisnode && thisnode->rsa_key)
441	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
442	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
443	{
444	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
445	exit (EXIT_FAILURE);
446	}	591	}
		592	}
447		593
448	free (fname);	594	free (fname);
449	}
450		595
		596	fname = conf.config_filename (conf.pidfilename);
		597	free (conf.pidfilename); conf.pidfilename = fname;
		598
		599	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		600	{
		601	conf_node node = i;
		602	char *fname;
		603	FILE *f;
		604
		605	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		606
		607	f = fopen (fname, "r");
		608	if (f)
		609	{
		610	node->rsa_key = RSA_new ();
		611
		612	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		613	{
		614	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		615	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		616	exit (EXIT_FAILURE);
		617	}
		618
		619	require (RSA_blinding_on (node->rsa_key, 0));
		620
		621	fclose (f);
		622	}
		623	else
		624	{
		625	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		626
		627	if (need_keys)
		628	exit (EXIT_FAILURE);
		629	}
		630
		631	free (fname);
		632
		633	(*i)->finalise ();
		634	}
		635
		636	if (::thisnode)
		637	{
		638	conf.thisnode = conf.find_node (::thisnode);
		639
		640	if (need_keys)
		641	{
		642	if (!conf.thisnode)
		643	{
		644	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		645	exit (EXIT_FAILURE);
		646	}
		647
		648	if (conf.rsa_key && conf.thisnode->rsa_key)
		649	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		650	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		651	{
		652	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		653	exit (EXIT_FAILURE);
		654	}
		655	}
		656	}
		657
		658	parse_argv ();
		659	}
		660
		661	void
		662	configuration_parser::parse_argv ()
		663	{
		664	for (int i = 0; i < argc; ++i)
		665	{
		666	char *v = argv [i];
		667
		668	if (!*v)
		669	continue;
		670
		671	char *enode = v;
		672
		673	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		674	enode++;
		675
		676	if (*enode != '.')
		677	enode = 0;
		678
		679	if (enode)
		680	{
		681	char *val = strdup (v);
		682	val [enode - v] = 0;
		683	node = conf.find_node (val);
		684	free (val);
		685
		686	if (!node)
		687	{
		688	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		689	continue;
		690	}
		691	}
		692	else
		693	node = &conf.default_node;
		694
		695	const char *warn = parse_line (enode ? enode + 1 : v);
		696
		697	if (warn)
		698	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		699	}
		700	}
		701
		702	char *
451	char configuration::config_filename (const char name, const char *dflt)	703	configuration::config_filename (const char name, const char dflt)
452	{	704	{
453	char *fname;	705	char *fname;
454		706
455	asprintf (&fname, name ? name : dflt, ::thisnode);	707	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
456		708
457	if (!ABSOLUTE_PATH (fname))	709	if (!ABSOLUTE_PATH (fname))
458	{	710	{
459	char *rname = fname;	711	char *rname = fname;
460	asprintf (&fname, "%s/%s", confbase, rname);	712	asprintf (&fname, "%s/%s", confbase, rname);
461	free (rname);	713	free (rname);
462	}	714	}
463		715
464	return fname;	716	return fname;
		717	}
		718
		719	void
		720	conf_node::print ()
		721	{
		722	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		723	id,
		724	id >> 8, id & 0xff,
		725	compress ? 'Y' : 'N',
		726	connectmode == C_ONDEMAND ? "ondemand"
		727	: connectmode == C_NEVER ? "never"
		728	: connectmode == C_ALWAYS ? "always"
		729	: connectmode == C_DISABLED ? "disabled"
		730	: "",
		731	nodename,
		732	protocols,
		733	hostname ? hostname : "",
		734	hostname ? ":" : "",
		735	hostname ? udp_port : 0
		736	);
465	}	737	}
466		738
467	void	739	void
468	configuration::print ()	740	configuration::print ()
469	{	741	{
…		…
476	printf (_("interface: %s\n"), ifname);	748	printf (_("interface: %s\n"), ifname);
477	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	749	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
478	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	750	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
479	printf ("\n");	751	printf ("\n");
480		752
481	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	753	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
482	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	754	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
483		755
484	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	756	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
485	(*i)->print ();	757	(*i)->print ();
486		758
487	printf ("\n");	759	printf ("\n");
488	}	760	}
489		761
490	configuration::configuration ()	762	configuration::configuration ()
491	{	763	{
		764	asprintf (&confbase, "%s/gvpe", CONFDIR);
		765
492	init ();	766	init ();
493	}	767	}
494		768
495	configuration::~configuration ()	769	configuration::~configuration ()
496	{	770	{
497	cleanup ();	771	cleanup ();
498	}	772	}
499		773
500

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Comparing gvpe/src/conf.C (file contents): Revision 1.25 by pcg, Mon May 10 20:13:09 2004 UTC vs. Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.25 by pcg, Mon May 10 20:13:09 2004 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC