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

Comparing gvpe/src/conf.C (file contents):
Revision 1.38 by pcg, Wed Mar 23 17:03:58 2005 UTC vs.
Revision 1.66 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) 2003-2005 Marc Lehmann <gvpe@schmorp.de>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
5	This file is part of GVPE.	5	This file is part of GVPE.
6		6
7	GVPE is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
8	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
10	(at your option) any later version.	10	option) any later version.
11		11
12	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15	GNU General Public License for more details.	15	Public License for more details.
16		16
17	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
18	along with gvpe; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
20	*/	30	*/
21		31
22	#include "config.h"	32	#include "config.h"
23		33
24	#include <cstdio>	34	#include <cstdio>
28	#include <errno.h>	38	#include <errno.h>
29	#include <netdb.h>	39	#include <netdb.h>
30	#include <sys/stat.h>	40	#include <sys/stat.h>
31	#include <sys/types.h>	41	#include <sys/types.h>
32	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
33		44
34	#include "netcompat.h"	45	#include "netcompat.h"
35		46
36	#include <openssl/err.h>	47	#include <openssl/err.h>
37	#include <openssl/pem.h>	48	#include <openssl/pem.h>
…		…
47	char *thisnode;	58	char *thisnode;
48	char *identname;	59	char *identname;
49		60
50	struct configuration conf;	61	struct configuration conf;
51		62
		63	u8
52	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
53	{	65	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		71
60	return 0;	72	return 0;
61	}	73	}
62		74
		75	const char *
63	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
64	{	77	{
65	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	82	if (protocol & PROT_DNSv4 ) return "dns";
70		83
71	return "<unknown>";	84	return "<unknown>";
72	}	85	}
73		86
74	void	87	static bool
75	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
76	{	89	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	91	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	92	return true;
80	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
82	connectmode == C_NEVER ? "never" :	95
83	connectmode == C_ALWAYS ? "always" : "",	96	return false;
84	nodename,	97	}
85	hostname ? hostname : "",	98
86	hostname ? ":" : "",	99	bool
87	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
88	);	101	{
		102	if (match_list (allow_direct, other->nodename))
		103	return true;
		104
		105	if (match_list (deny_direct, other->nodename))
		106	return false;
		107
		108	return true;
89	}	109	}
90		110
91	conf_node::~conf_node ()	111	conf_node::~conf_node ()
92	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
93	if (rsa_key)	116	if (rsa_key)
94	RSA_free (rsa_key);	117	RSA_free (rsa_key);
95		118
96	free (nodename);	119	free (nodename);
97	free (hostname);	120	free (hostname);
		121	free (if_up_data);
98	#if ENABLE_DNS	122	#if ENABLE_DNS
99	free (domain);	123	free (domain);
100	free (dns_hostname);	124	free (dns_hostname);
101	#endif	125	#endif
		126	#endif
102	}	127	}
103		128
		129	void
104	void configuration::init ()	130	configuration::init ()
105	{	131	{
106	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
107		133
108	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
109	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
110	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
111	llevel = L_INFO;	138	llevel = L_INFO;
112	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
113	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
118	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
120	default_node.compress = true;	147	default_node.compress = true;
121	default_node.protocols = 0;	148	default_node.protocols = 0;
122	default_node.max_retry = DEFAULT_MAX_RETRY;	149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
123		153
124	#if ENABLE_DNS	154	#if ENABLE_DNS
125	default_node.dns_port = 0; // default is 0 == client	155	default_node.dns_port = 0; // default is 0 == client
126		156
		157	dns_case_preserving = true;
127	dns_forw_host = strdup ("127.0.0.1");	158	dns_forw_host = strdup ("127.0.0.1");
128	dns_forw_port = 53;	159	dns_forw_port = 53;
129	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;	160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
130	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;	161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
131	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;	162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
132	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;	163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
133	#endif	164	#endif
134		165
135	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
136	}	169	}
137		170
		171	void
138	void configuration::cleanup()	172	configuration::cleanup ()
139	{	173	{
140	if (rsa_key)	174	if (rsa_key)
141	RSA_free (rsa_key);	175	RSA_free (rsa_key);
142		176
143	rsa_key = 0;	177	rsa_key = 0;
144		178
		179	free (seed_dev); seed_dev = 0;
145	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
146	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
147	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
148	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
149	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
150	#endif	185	#endif
151	#if ENABLE_DNS	186	#if ENABLE_DNS
152	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
153	#endif	188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
154	}	194	}
155		195
156	void	196	void
157	configuration::clear_config ()	197	configuration::clear ()
158	{	198	{
159	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
160	delete *i;	200	delete *i;
161		201
162	nodes.clear ();	202	nodes.clear ();
163		203
164	cleanup ();	204	cleanup ();
165	init ();	205	init ();
166	}	206	}
		207
		208	conf_node *
		209	configuration::find_node (const char *name)
		210	{
		211	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		212	if (!strcmp ((*i)->nodename, name))
		213	return *i;
		214
		215	return 0;
		216	}
		217
		218	//static bool
		219	//is_true (const char *name)
		220	//{
		221	//re
		222	//}
167		223
168	#define parse_bool(target,name,trueval,falseval) do { \	224	#define parse_bool(target,name,trueval,falseval) do { \
169	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
170	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
171	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
172	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
173	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
174	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
175	else \	231	else \
176	slog (L_WARN, \
177	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	232	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
178	name, var, fname, lineno); \
179	} while (0)	233	} while (0)
180		234
181	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
182	{	237	{
183	char *fname;	238	{
184	FILE *f;	239	char *end = line + strlen (line);
185		240
186	clear_config ();	241	while (end >= line && *end < ' ')
		242	end--;
187		243
188	asprintf (&fname, "%s/gvpe.conf", confbase);	244	*++end = 0;
189	f = fopen (fname, "r");	245	}
190		246
191	if (f)	247	char *tok = line;
		248	const char *var = strtok (tok, "\t =");
		249	tok = 0;
		250
		251	if (!var \|\| !var[0])
		252	return 0; /* no tokens on this line */
		253
		254	if (var[0] == '#')
		255	return 0; /* comment: ignore */
		256
		257	if (!strcmp (var, "global"))
		258	{
		259	node = &conf.default_node;
		260	return 0;
192	{	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	{
193	char line[16384];	535	char line [2048];
194	int lineno = 0;	536	int lineno = 0;
195	char var, val;
196	conf_node *node = &default_node;
197		537
198	while (fgets (line, sizeof (line), f))	538	while (fgets (line, sizeof (line), f))
199	{	539	{
200	lineno++;	540	lineno++;
201		541
202	{	542	const char *warn = parse_line (line);
203	char *end = line + strlen (line);
204		543
205	while (*end < ' ' && end >= line)	544	if (warn)
206	end--;	545	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
207
208	*++end = 0;
209	}
210
211	char *tok = line;
212
213	retry:
214	var = strtok (tok, "\t =");
215	tok = 0;
216
217	if (!var \|\| !var[0])
218	continue; /* no tokens on this line */
219
220	if (var[0] == '#')
221	continue; /* comment: ignore */
222
223	val = strtok (NULL, "\t\n\r =");
224
225	if (!val \|\| val[0] == '#')
226	{
227	slog (L_WARN,
228	_("no value for variable `%s', at '%s' line %d, skipping."),
229	var, fname, lineno);
230	continue;
231	}
232
233	if (!strcmp (var, "on"))
234	{
235	if (!::thisnode
236	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
237	\|\| !strcmp (val, ::thisnode))
238	goto retry;
239
240	continue;
241	}
242
243	// truly global
244	if (!strcmp (var, "loglevel"))
245	{
246	loglevel l = string_to_loglevel (val);
247
248	if (l != L_NONE)
249	llevel = l;
250	else
251	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
252	}
253	else if (!strcmp (var, "ip-proto"))
254	ip_proto = atoi (val);
255	else if (!strcmp (var, "icmp-type"))
256	{
257	#if ENABLE_ICMP
258	icmp_type = atoi (val);
259	#endif
260	}
261
262	// per config
263	else if (!strcmp (var, "node"))
264	{
265	default_node.id++;
266
267	node = new conf_node (default_node);
268
269	nodes.push_back (node);
270
271	node->nodename = strdup (val);
272
273	{
274	char *fname;
275	FILE *f;
276
277	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
278
279	f = fopen (fname, "r");
280	if (f)
281	{
282	node->rsa_key = RSA_new ();
283
284	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
285	{
286	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
287	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
288	exit (EXIT_FAILURE);
289	}
290
291	require (RSA_blinding_on (node->rsa_key, 0));
292
293	fclose (f);
294	}
295	else
296	{
297	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
298
299	if (need_keys)
300	exit (EXIT_FAILURE);
301	}
302
303	free (fname);
304	}
305
306	if (::thisnode && !strcmp (node->nodename, ::thisnode))
307	thisnode = node;
308	}
309	else if (!strcmp (var, "private-key"))
310	free (prikeyfile), prikeyfile = strdup (val);
311	else if (!strcmp (var, "ifpersist"))
312	parse_bool (ifpersist, "ifpersist", true, false);
313	else if (!strcmp (var, "ifname"))
314	free (ifname), ifname = strdup (val);
315	else if (!strcmp (var, "rekey"))
316	rekey = atoi (val);
317	else if (!strcmp (var, "keepalive"))
318	keepalive = atoi (val);
319	else if (!strcmp (var, "mtu"))
320	mtu = atoi (val);
321	else if (!strcmp (var, "if-up"))
322	free (script_if_up), script_if_up = strdup (val);
323	else if (!strcmp (var, "node-up"))
324	free (script_node_up), script_node_up = strdup (val);
325	else if (!strcmp (var, "node-down"))
326	free (script_node_down), script_node_down = strdup (val);
327	else if (!strcmp (var, "pid-file"))
328	free (pidfilename), pidfilename = strdup (val);
329	else if (!strcmp (var, "dns-forw-host"))
330	{
331	#if ENABLE_DNS
332	free (dns_forw_host), dns_forw_host = strdup (val);
333	#endif
334	}
335	else if (!strcmp (var, "dns-forw-port"))
336	{
337	#if ENABLE_DNS
338	dns_forw_port = atoi (val);
339	#endif
340	}
341	else if (!strcmp (var, "dns-timeout-factor"))
342	{
343	#if ENABLE_DNS
344	dns_timeout_factor = atof (val);
345	#endif
346	}
347	else if (!strcmp (var, "dns-send-interval"))
348	{
349	#if ENABLE_DNS
350	dns_send_interval = atoi (val);
351	#endif
352	}
353	else if (!strcmp (var, "dns-overlap-factor"))
354	{
355	#if ENABLE_DNS
356	dns_overlap_factor = atof (val);
357	#endif
358	}
359	else if (!strcmp (var, "dns-max-outstanding"))
360	{
361	#if ENABLE_DNS
362	dns_max_outstanding = atoi (val);
363	#endif
364	}
365	else if (!strcmp (var, "http-proxy-host"))
366	{
367	#if ENABLE_HTTP_PROXY
368	free (proxy_host), proxy_host = strdup (val);
369	#endif
370	}
371	else if (!strcmp (var, "http-proxy-port"))
372	{
373	#if ENABLE_HTTP_PROXY
374	proxy_port = atoi (val);
375	#endif
376	}
377	else if (!strcmp (var, "http-proxy-auth"))
378	{
379	#if ENABLE_HTTP_PROXY
380	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
381	#endif
382	}
383
384	/* node-specific, non-defaultable */
385	else if (node != &default_node && !strcmp (var, "hostname"))
386	free (node->hostname), node->hostname = strdup (val);
387
388	/* node-specific, defaultable */
389	else if (!strcmp (var, "udp-port"))
390	node->udp_port = atoi (val);
391	else if (!strcmp (var, "tcp-port"))
392	node->tcp_port = atoi (val);
393	else if (!strcmp (var, "dns-hostname"))
394	{
395	#if ENABLE_DNS
396	free (node->dns_hostname), node->dns_hostname = strdup (val);
397	#endif
398	}
399	else if (!strcmp (var, "dns-port"))
400	{
401	#if ENABLE_DNS
402	node->dns_port = atoi (val);
403	#endif
404	}
405	else if (!strcmp (var, "dns-domain"))
406	{
407	#if ENABLE_DNS
408	free (node->domain), node->domain = strdup (val);
409	#endif
410	}
411	else if (!strcmp (var, "router-priority"))
412	node->routerprio = atoi (val);
413	else if (!strcmp (var, "max-retry"))
414	node->max_retry = atoi (val);
415	else if (!strcmp (var, "connect"))
416	{
417	if (!strcmp (val, "ondemand"))
418	node->connectmode = conf_node::C_ONDEMAND;
419	else if (!strcmp (val, "never"))
420	node->connectmode = conf_node::C_NEVER;
421	else if (!strcmp (val, "always"))
422	node->connectmode = conf_node::C_ALWAYS;
423	else if (!strcmp (val, "disabled"))
424	node->connectmode = conf_node::C_DISABLED;
425	else
426	slog (L_WARN,
427	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
428	var, fname, lineno);
429	}
430	else if (!strcmp (var, "inherit-tos"))
431	parse_bool (node->inherit_tos, "inherit-tos", true, false);
432	else if (!strcmp (var, "compress"))
433	parse_bool (node->compress, "compress", true, false);
434	// all these bool options really really cost a lot of executable size!
435	else if (!strcmp (var, "enable-tcp"))
436	{
437	#if ENABLE_TCP
438	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
439	#endif
440	}
441	else if (!strcmp (var, "enable-icmp"))
442	{
443	#if ENABLE_ICMP
444	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
445	#endif
446	}
447	else if (!strcmp (var, "enable-dns"))
448	{
449	#if ENABLE_DNS
450	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
451	#endif
452	}
453	else if (!strcmp (var, "enable-udp"))
454	{
455	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
456	}
457	else if (!strcmp (var, "enable-rawip"))
458	{
459	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
460	}
461
462	// unknown or misplaced
463	else
464	slog (L_WARN,
465	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
466	var, fname, lineno);
467	}	546	}
468		547
469	fclose (f);	548	fclose (f);
470	}	549	}
471	else	550	else
472	{	551	{
473	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));
474	exit (EXIT_FAILURE);	553	exit (EXIT_FAILURE);
475	}	554	}
		555	}
476		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);
477	free (fname);	570	free (fname);
478		571
479	fname = config_filename (prikeyfile, "hostkey");	572	fname = conf.config_filename (conf.prikeyfile, "hostkey");
480		573
481	f = fopen (fname, "r");	574	if (FILE *f = fopen (fname, "r"))
482	if (f)
483	{	575	{
484	rsa_key = RSA_new ();	576	conf.rsa_key = RSA_new ();
485		577
486	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	578	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
487	{	579	{
488	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	580	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
489	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	581	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
490	exit (EXIT_FAILURE);	582	exit (EXIT_FAILURE);
491	}	583	}
492		584
493	require (RSA_blinding_on (rsa_key, 0));	585	require (RSA_blinding_on (conf.rsa_key, 0));
494		586
495	fclose (f);	587	fclose (f);
496	}	588	}
497	else	589	else
498	{	590	{
499	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
500
501	if (need_keys)	591	if (need_keys)
		592	{
		593	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
502	exit (EXIT_FAILURE);	594	exit (EXIT_FAILURE);
503	}
504
505	if (need_keys && ::thisnode
506	&& rsa_key && thisnode && thisnode->rsa_key)
507	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
508	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
509	{
510	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
511	exit (EXIT_FAILURE);
512	}	595	}
		596	}
513		597
514	free (fname);	598	free (fname);
515	}
516		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 *
517	char configuration::config_filename (const char name, const char *dflt)	707	configuration::config_filename (const char name, const char dflt)
518	{	708	{
519	char *fname;	709	char *fname;
520		710
521	asprintf (&fname, name ? name : dflt, ::thisnode);	711	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
522		712
523	if (!ABSOLUTE_PATH (fname))	713	if (!ABSOLUTE_PATH (fname))
524	{	714	{
525	char *rname = fname;	715	char *rname = fname;
526	asprintf (&fname, "%s/%s", confbase, rname);	716	asprintf (&fname, "%s/%s", confbase, rname);
527	free (rname);	717	free (rname);
528	}	718	}
529		719
530	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	);
531	}	741	}
532		742
533	void	743	void
534	configuration::print ()	744	configuration::print ()
535	{	745	{
…		…
542	printf (_("interface: %s\n"), ifname);	752	printf (_("interface: %s\n"), ifname);
543	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	753	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
544	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	754	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
545	printf ("\n");	755	printf ("\n");
546		756
547	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	757	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
548	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	758	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
549		759
550	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	760	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
551	(*i)->print ();	761	(*i)->print ();
552		762
553	printf ("\n");	763	printf ("\n");
…		…
563	configuration::~configuration ()	773	configuration::~configuration ()
564	{	774	{
565	cleanup ();	775	cleanup ();
566	}	776	}
567		777
568

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Comparing gvpe/src/conf.C (file contents): Revision 1.38 by pcg, Wed Mar 23 17:03:58 2005 UTC vs. Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.38 by pcg, Wed Mar 23 17:03:58 2005 UTC vs.
Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC