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

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	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
10	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
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	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
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	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
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	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.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
35		44
36	#include <netinet/in.h>	45	#include "netcompat.h"
37		46
38	#include <openssl/err.h>	47	#include <openssl/err.h>
39	#include <openssl/pem.h>	48	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	50	#include <openssl/rand.h>
42		51	#include <openssl/bn.h>
43	#include "gettext.h"
44		52
45	#include "conf.h"	53	#include "conf.h"
46	#include "slog.h"	54	#include "slog.h"
47	#include "util.h"	55	#include "util.h"
48		56
49	char *confbase;	57	char *confbase;
50	char *thisnode;	58	char *thisnode;
51	char *identname;	59	char *identname;
52	char *pidfilename;
53		60
54	struct configuration conf;	61	struct configuration conf;
55		62
		63	u8
56	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
57	{	65	{
58	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
		67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59	if (protset & PROT_UDPv4) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60	if (protset & PROT_TCPv4) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		71
62	return 0;	72	return 0;
63	}	73	}
64		74
		75	const char *
65	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
66	{	77	{
67	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
		79	if (protocol & PROT_ICMPv4) return "icmp";
68	if (protocol & PROT_UDPv4) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
		81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
69		83
70	return "<unknown>";	84	return "<unknown>";
71	}	85	}
72		86
73	configuration::configuration ()	87	static bool
		88	match_list (const vector<const char > &list, const char str)
74	{	89	{
75	init ();	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
76	}	91	if ((i)[0] == '' && !(*i)[1])
		92	return true;
		93	else if (!strcmp (*i, str))
		94	return true;
77		95
78	configuration::~configuration ()	96	return false;
79	{
80	cleanup ();
81	}	97	}
82		98
		99	bool
		100	conf_node::may_direct (struct conf_node *other)
		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;
		109	}
		110
		111	conf_node::~conf_node ()
		112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
		116	if (rsa_key)
		117	RSA_free (rsa_key);
		118
		119	free (nodename);
		120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
		127	}
		128
		129	void
83	void configuration::init ()	130	configuration::init ()
84	{	131	{
85	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
86		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
87	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
88	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
89	llevel = L_INFO;	138	llevel = L_INFO;
90	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
		140	#if ENABLE_ICMP
		141	icmp_type = ICMP_ECHOREPLY;
		142	#endif
91		143
92	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
93	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
94	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
95	default_node.compress = true;	147	default_node.compress = true;
96	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
97	}	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 ("");
98		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
		166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
		169	}
		170
		171	void
99	void configuration::cleanup()	172	configuration::cleanup ()
100	{	173	{
101	if (rsa_key)	174	if (rsa_key)
102	RSA_free (rsa_key);	175	RSA_free (rsa_key);
103		176
104	free (ifname);
105
106	rsa_key = 0;	177	rsa_key = 0;
107	ifname = 0;	178
		179	free (seed_dev); seed_dev = 0;
		180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
		182	#if ENABLE_HTTP_PROXY
		183	free (proxy_host); proxy_host = 0;
		184	free (proxy_auth); proxy_auth = 0;
		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;
108	}	194	}
109		195
110	void	196	void
111	configuration::clear_config ()	197	configuration::clear ()
112	{	198	{
113	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)
114	delete *i;	200	delete *i;
115		201
116	nodes.clear ();	202	nodes.clear ();
117		203
118	cleanup ();	204	cleanup ();
119	init ();	205	init ();
120	}	206	}
121		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
122	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
123	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
124	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
125	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
126	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
127	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
128	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
129	else \	231	else \
130	slog (L_WARN, \
131	_("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"); \
132	name, var, fname, lineno);	233	} while (0)
133		234
134	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
135	{	237	{
136	char *fname;	238	{
137	FILE *f;	239	char *end = line + strlen (line);
138		240
139	clear_config ();	241	while (end >= line && *end < ' ')
		242	end--;
140		243
141	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
142	f = fopen (fname, "r");	245	}
143		246
144	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;
145	{	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	{
146	char line[16384];	535	char line [2048];
147	int lineno = 0;	536	int lineno = 0;
148	char var, val;
149	conf_node *node = &default_node;
150		537
151	while (fgets (line, sizeof (line), f))	538	while (fgets (line, sizeof (line), f))
152	{	539	{
153	lineno++;	540	lineno++;
154		541
155	{	542	const char *warn = parse_line (line);
156	char *end = line + strlen (line);
157		543
158	while (*end < ' ' && end >= line)	544	if (warn)
159	end--;	545	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
160
161	*++end = 0;
162	}
163
164	char *tok = line;
165
166	retry:
167	var = strtok (tok, "\t =");
168	tok = 0;
169
170	if (!var \|\| !var[0])
171	continue; /* no tokens on this line */
172
173	if (var[0] == '#')
174	continue; /* comment: ignore */
175
176	val = strtok (NULL, "\t\n\r =");
177
178	if (!val \|\| val[0] == '#')
179	{
180	slog (L_WARN,
181	_("no value for variable `%s', at '%s' line %d"),
182	var, fname, lineno);
183	break;
184	}
185
186	if (!strcmp (var, "on"))
187	{
188	if (!::thisnode
189	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
190	\|\| !strcmp (val, ::thisnode))
191	goto retry;
192
193	continue;
194	}
195
196	// truly global
197	if (!strcmp (var, "loglevel"))
198	{
199	loglevel l = string_to_loglevel (val);
200
201	if (l != L_NONE)
202	llevel = l;
203	else
204	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
205	}
206	else if (!strcmp (var, "ip-proto"))
207	ip_proto = atoi (val);
208
209	// per config
210	else if (!strcmp (var, "node"))
211	{
212	default_node.id++;
213
214	node = new conf_node (default_node);
215
216	nodes.push_back (node);
217
218	node->nodename = strdup (val);
219
220	{
221	char *fname;
222	FILE *f;
223
224	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
225
226	f = fopen (fname, "r");
227	if (f)
228	{
229	node->rsa_key = RSA_new ();
230
231	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
232	{
233	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
234	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
235	exit (1);
236	}
237
238	RSA_blinding_on (node->rsa_key, 0);
239
240	fclose (f);
241	}
242	else
243	{
244	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
245
246	if (need_keys)
247	exit (1);
248	}
249
250	free (fname);
251	}
252
253	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
254	thisnode = node;
255	}
256	else if (!strcmp (var, "private-key"))
257	prikeyfile = strdup (val);
258	else if (!strcmp (var, "ifpersist"))
259	{
260	parse_bool (ifpersist, "ifpersist", true, false);
261	}
262	else if (!strcmp (var, "ifname"))
263	ifname = strdup (val);
264	else if (!strcmp (var, "rekey"))
265	rekey = atoi (val);
266	else if (!strcmp (var, "keepalive"))
267	keepalive = atoi (val);
268	else if (!strcmp (var, "mtu"))
269	mtu = atoi (val);
270	else if (!strcmp (var, "if-up"))
271	script_if_up = strdup (val);
272	else if (!strcmp (var, "node-up"))
273	script_node_up = strdup (val);
274	else if (!strcmp (var, "node-down"))
275	script_node_down = strdup (val);
276
277	/* node-specific, non-defaultable */
278	else if (node != &default_node && !strcmp (var, "hostname"))
279	{
280	free (node->hostname);
281	node->hostname = strdup (val);
282	}
283
284	/* node-specific, defaultable */
285	else if (!strcmp (var, "udp-port"))
286	node->udp_port = atoi (val);
287	else if (!strcmp (var, "tcp-port"))
288	node->tcp_port = atoi (val);
289	else if (!strcmp (var, "router-priority"))
290	node->routerprio = atoi (val);
291	else if (!strcmp (var, "connect"))
292	{
293	if (!strcmp (val, "ondemand"))
294	node->connectmode = conf_node::C_ONDEMAND;
295	else if (!strcmp (val, "never"))
296	node->connectmode = conf_node::C_NEVER;
297	else if (!strcmp (val, "always"))
298	node->connectmode = conf_node::C_ALWAYS;
299	else if (!strcmp (val, "disabled"))
300	node->connectmode = conf_node::C_DISABLED;
301	else
302	slog (L_WARN,
303	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
304	var, fname, lineno);
305	}
306	else if (!strcmp (var, "inherit-tos"))
307	{
308	parse_bool (node->inherit_tos, "inherit-tos", true, false);
309	}
310	else if (!strcmp (var, "compress"))
311	{
312	parse_bool (node->compress, "compress", true, false);
313	}
314	// all these bool options really really cost a lot of executable size!
315	else if (!strcmp (var, "enable-tcp"))
316	{
317	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
318	}
319	else if (!strcmp (var, "enable-udp"))
320	{
321	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
322	}
323	else if (!strcmp (var, "enable-rawip"))
324	{
325	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
326	}
327
328	// unknown or misplaced
329	else
330	{
331	slog (L_WARN,
332	_("unknown or misplaced variable `%s', at '%s' line %d"),
333	var, fname, lineno);
334	}
335	}	546	}
336		547
337	fclose (f);	548	fclose (f);
338	}	549	}
339	else	550	else
340	{	551	{
341	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));
342	exit (1);	553	exit (EXIT_FAILURE);
343	}	554	}
		555	}
344		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);
345	free (fname);	570	free (fname);
346		571
347	fname = config_filename (prikeyfile, "hostkey");	572	fname = conf.config_filename (conf.prikeyfile, "hostkey");
348		573
349	f = fopen (fname, "r");	574	if (FILE *f = fopen (fname, "r"))
350	if (f)
351	{	575	{
352	rsa_key = RSA_new ();	576	conf.rsa_key = RSA_new ();
353		577
354	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	578	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
355	{	579	{
356	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	580	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
357	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));
358	exit (1);	582	exit (EXIT_FAILURE);
359	}	583	}
360		584
361	RSA_blinding_on (rsa_key, 0);	585	require (RSA_blinding_on (conf.rsa_key, 0));
362		586
363	fclose (f);	587	fclose (f);
364	}	588	}
365	else	589	else
366	{	590	{
367	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
368
369	if (need_keys)	591	if (need_keys)
370	exit (1);	592	{
		593	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		594	exit (EXIT_FAILURE);
		595	}
371	}	596	}
372		597
373	free (fname);	598	free (fname);
374	}
375		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 *
376	char configuration::config_filename (const char name, const char *dflt)	707	configuration::config_filename (const char name, const char dflt)
377	{	708	{
378	char *fname;	709	char *fname;
379		710
380	asprintf (&fname, name ? name : dflt, ::thisnode);	711	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
381		712
382	if (!ABSOLUTE_PATH (fname))	713	if (!ABSOLUTE_PATH (fname))
383	{	714	{
384	char *rname = fname;	715	char *rname = fname;
385	asprintf (&fname, "%s/%s", confbase, rname);	716	asprintf (&fname, "%s/%s", confbase, rname);
386	free (rname);	717	free (rname);
387	}	718	}
388		719
389	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	);
390	}	741	}
391		742
392	void	743	void
393	configuration::print ()	744	configuration::print ()
394	{	745	{
…		…
398	printf (_("MTU: %d\n"), mtu);	749	printf (_("MTU: %d\n"), mtu);
399	printf (_("rekeying interval: %d\n"), rekey);	750	printf (_("rekeying interval: %d\n"), rekey);
400	printf (_("keepalive interval: %d\n"), keepalive);	751	printf (_("keepalive interval: %d\n"), keepalive);
401	printf (_("interface: %s\n"), ifname);	752	printf (_("interface: %s\n"), ifname);
402	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	753	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
403	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	754	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
404	printf ("\n");	755	printf ("\n");
405		756
406	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	757	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
407	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	758	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
408		759
409	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	760	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
410	(*i)->print ();	761	(*i)->print ();
411		762
412	printf ("\n");	763	printf ("\n");
413	}	764	}
414		765
415	void	766	configuration::configuration ()
416	conf_node::print ()
417	{	767	{
418	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	768	asprintf (&confbase, "%s/gvpe", CONFDIR);
419	id,
420	id >> 8, id & 0xff,
421	compress ? 'Y' : 'N',
422	connectmode == C_ONDEMAND ? "ondemand" :
423	connectmode == C_NEVER ? "never" :
424	connectmode == C_ALWAYS ? "always" : "",
425	nodename,
426	hostname ? hostname : "",
427	hostname ? ":" : "",
428	hostname ? udp_port : 0
429	);
430	}
431		769
		770	init ();
		771	}
		772
		773	configuration::~configuration ()
		774	{
		775	cleanup ();
		776	}
		777

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Comparing gvpe/src/conf.C (file contents): Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs. Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC