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

Comparing gvpe/src/conf.C (file contents):
Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 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) 2003-2005 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
		156
		157	dns_case_preserving = true;
126	dns_forw_host = strdup ("127.0.0.1");	158	dns_forw_host = strdup ("127.0.0.1");
127	dns_forw_port = 53;	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;
128	#endif	164	#endif
129		165
130	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
131	}	169	}
132		170
		171	void
133	void configuration::cleanup()	172	configuration::cleanup ()
134	{	173	{
135	if (rsa_key)	174	if (rsa_key)
136	RSA_free (rsa_key);	175	RSA_free (rsa_key);
137		176
138	rsa_key = 0;	177	rsa_key = 0;
139		178
		179	free (seed_dev); seed_dev = 0;
140	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
141	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
142	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
143	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
144	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
145	#endif	185	#endif
146	#if ENABLE_DNS	186	#if ENABLE_DNS
147	free (dns_forw_host); dns_forw_host = 0;	187	free (dns_forw_host); dns_forw_host = 0;
148	#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;
149	}	194	}
150		195
151	void	196	void
152	configuration::clear_config ()	197	configuration::clear ()
153	{	198	{
154	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)
155	delete *i;	200	delete *i;
156		201
157	nodes.clear ();	202	nodes.clear ();
158		203
159	cleanup ();	204	cleanup ();
160	init ();	205	init ();
161	}	206	}
162		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
163	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
164	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
165	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
166	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
167	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
168	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
169	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
170	else \	231	else \
171	slog (L_WARN, \
172	_("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"); \
173	name, var, fname, lineno);	233	} while (0)
174		234
175	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
176	{	237	{
177	char *fname;	238	{
178	FILE *f;	239	char *end = line + strlen (line);
179		240
180	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
181		243
182	asprintf (&fname, "%s/gvpe.conf", confbase);	244	*++end = 0;
183	f = fopen (fname, "r");	245	}
184		246
185	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;
186	{	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	{
187	char line[16384];	531	char line [2048];
188	int lineno = 0;	532	int lineno = 0;
189	char var, val;
190	conf_node *node = &default_node;
191		533
192	while (fgets (line, sizeof (line), f))	534	while (fgets (line, sizeof (line), f))
193	{	535	{
194	lineno++;	536	lineno++;
195		537
196	{	538	const char *warn = parse_line (line);
197	char *end = line + strlen (line);
198		539
199	while (*end < ' ' && end >= line)	540	if (warn)
200	end--;	541	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
201
202	*++end = 0;
203	}
204
205	char *tok = line;
206
207	retry:
208	var = strtok (tok, "\t =");
209	tok = 0;
210
211	if (!var \|\| !var[0])
212	continue; /* no tokens on this line */
213
214	if (var[0] == '#')
215	continue; /* comment: ignore */
216
217	val = strtok (NULL, "\t\n\r =");
218
219	if (!val \|\| val[0] == '#')
220	{
221	slog (L_WARN,
222	_("no value for variable `%s', at '%s' line %d, skipping."),
223	var, fname, lineno);
224	continue;
225	}
226
227	if (!strcmp (var, "on"))
228	{
229	if (!::thisnode
230	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
231	\|\| !strcmp (val, ::thisnode))
232	goto retry;
233
234	continue;
235	}
236
237	// truly global
238	if (!strcmp (var, "loglevel"))
239	{
240	loglevel l = string_to_loglevel (val);
241
242	if (l != L_NONE)
243	llevel = l;
244	else
245	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
246	}
247	else if (!strcmp (var, "ip-proto"))
248	ip_proto = atoi (val);
249	else if (!strcmp (var, "icmp-type"))
250	{
251	#if ENABLE_ICMP
252	icmp_type = atoi (val);
253	#endif
254	}
255
256	// per config
257	else if (!strcmp (var, "node"))
258	{
259	default_node.id++;
260
261	node = new conf_node (default_node);
262
263	nodes.push_back (node);
264
265	node->nodename = strdup (val);
266
267	{
268	char *fname;
269	FILE *f;
270
271	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
272
273	f = fopen (fname, "r");
274	if (f)
275	{
276	node->rsa_key = RSA_new ();
277
278	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
279	{
280	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
281	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
282	exit (EXIT_FAILURE);
283	}
284
285	require (RSA_blinding_on (node->rsa_key, 0));
286
287	fclose (f);
288	}
289	else
290	{
291	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
292
293	if (need_keys)
294	exit (EXIT_FAILURE);
295	}
296
297	free (fname);
298	}
299
300	if (::thisnode && !strcmp (node->nodename, ::thisnode))
301	thisnode = node;
302	}
303	else if (!strcmp (var, "private-key"))
304	free (prikeyfile), prikeyfile = strdup (val);
305	else if (!strcmp (var, "ifpersist"))
306	parse_bool (ifpersist, "ifpersist", true, false);
307	else if (!strcmp (var, "ifname"))
308	free (ifname), ifname = strdup (val);
309	else if (!strcmp (var, "rekey"))
310	rekey = atoi (val);
311	else if (!strcmp (var, "keepalive"))
312	keepalive = atoi (val);
313	else if (!strcmp (var, "mtu"))
314	mtu = atoi (val);
315	else if (!strcmp (var, "if-up"))
316	free (script_if_up), script_if_up = strdup (val);
317	else if (!strcmp (var, "node-up"))
318	free (script_node_up), script_node_up = strdup (val);
319	else if (!strcmp (var, "node-down"))
320	free (script_node_down), script_node_down = strdup (val);
321	else if (!strcmp (var, "pid-file"))
322	free (pidfilename), pidfilename = strdup (val);
323	else if (!strcmp (var, "dns-forw-host"))
324	{
325	#if ENABLE_DNS
326	free (dns_forw_host), dns_forw_host = strdup (val);
327	#endif
328	}
329	else if (!strcmp (var, "dns-forw-port"))
330	{
331	#if ENABLE_DNS
332	dns_forw_port = atoi (val);
333	#endif
334	}
335	else if (!strcmp (var, "http-proxy-host"))
336	{
337	#if ENABLE_HTTP_PROXY
338	free (proxy_host), proxy_host = strdup (val);
339	#endif
340	}
341	else if (!strcmp (var, "http-proxy-port"))
342	{
343	#if ENABLE_HTTP_PROXY
344	proxy_port = atoi (val);
345	#endif
346	}
347	else if (!strcmp (var, "http-proxy-auth"))
348	{
349	#if ENABLE_HTTP_PROXY
350	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
351	#endif
352	}
353
354	/* node-specific, non-defaultable */
355	else if (node != &default_node && !strcmp (var, "hostname"))
356	free (node->hostname), node->hostname = strdup (val);
357
358	/* node-specific, defaultable */
359	else if (!strcmp (var, "udp-port"))
360	node->udp_port = atoi (val);
361	else if (!strcmp (var, "tcp-port"))
362	node->tcp_port = atoi (val);
363	else if (!strcmp (var, "dns-hostname"))
364	{
365	#if ENABLE_DNS
366	free (node->dns_hostname), node->dns_hostname = strdup (val);
367	#endif
368	}
369	else if (!strcmp (var, "dns-port"))
370	{
371	#if ENABLE_DNS
372	node->dns_port = atoi (val);
373	#endif
374	}
375	else if (!strcmp (var, "dns-domain"))
376	{
377	#if ENABLE_DNS
378	free (node->domain), node->domain = strdup (val);
379	#endif
380	}
381	else if (!strcmp (var, "router-priority"))
382	node->routerprio = atoi (val);
383	else if (!strcmp (var, "max-retry"))
384	node->max_retry = atoi (val);
385	else if (!strcmp (var, "connect"))
386	{
387	if (!strcmp (val, "ondemand"))
388	node->connectmode = conf_node::C_ONDEMAND;
389	else if (!strcmp (val, "never"))
390	node->connectmode = conf_node::C_NEVER;
391	else if (!strcmp (val, "always"))
392	node->connectmode = conf_node::C_ALWAYS;
393	else if (!strcmp (val, "disabled"))
394	node->connectmode = conf_node::C_DISABLED;
395	else
396	slog (L_WARN,
397	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."),
398	var, fname, lineno);
399	}
400	else if (!strcmp (var, "inherit-tos"))
401	parse_bool (node->inherit_tos, "inherit-tos", true, false);
402	else if (!strcmp (var, "compress"))
403	parse_bool (node->compress, "compress", true, false);
404	// all these bool options really really cost a lot of executable size!
405	else if (!strcmp (var, "enable-tcp"))
406	{
407	#if ENABLE_TCP
408	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
409	#endif
410	}
411	else if (!strcmp (var, "enable-icmp"))
412	{
413	#if ENABLE_ICMP
414	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
415	#endif
416	}
417	else if (!strcmp (var, "enable-dns"))
418	{
419	#if ENABLE_DNS
420	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
421	#endif
422	}
423	else if (!strcmp (var, "enable-udp"))
424	{
425	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
426	}
427	else if (!strcmp (var, "enable-rawip"))
428	{
429	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
430	}
431
432	// unknown or misplaced
433	else
434	slog (L_WARN,
435	_("unknown or misplaced variable `%s', at '%s' line %d, skipping."),
436	var, fname, lineno);
437	}	542	}
438		543
439	fclose (f);	544	fclose (f);
440	}	545	}
441	else	546	else
442	{	547	{
443	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));
444	exit (EXIT_FAILURE);	549	exit (EXIT_FAILURE);
445	}	550	}
		551	}
446		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);
447	free (fname);	566	free (fname);
448		567
449	fname = config_filename (prikeyfile, "hostkey");	568	fname = conf.config_filename (conf.prikeyfile, "hostkey");
450		569
451	f = fopen (fname, "r");	570	if (FILE *f = fopen (fname, "r"))
452	if (f)
453	{	571	{
454	rsa_key = RSA_new ();	572	conf.rsa_key = RSA_new ();
455		573
456	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	574	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
457	{	575	{
458	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	576	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
459	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));
460	exit (EXIT_FAILURE);	578	exit (EXIT_FAILURE);
461	}	579	}
462		580
463	require (RSA_blinding_on (rsa_key, 0));	581	require (RSA_blinding_on (conf.rsa_key, 0));
464		582
465	fclose (f);	583	fclose (f);
466	}	584	}
467	else	585	else
468	{	586	{
469	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
470
471	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));
472	exit (EXIT_FAILURE);	590	exit (EXIT_FAILURE);
473	}
474
475	if (need_keys && ::thisnode
476	&& rsa_key && thisnode && thisnode->rsa_key)
477	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
478	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
479	{
480	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
481	exit (EXIT_FAILURE);
482	}	591	}
		592	}
483		593
484	free (fname);	594	free (fname);
485	}
486		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 *
487	char configuration::config_filename (const char name, const char *dflt)	703	configuration::config_filename (const char name, const char dflt)
488	{	704	{
489	char *fname;	705	char *fname;
490		706
491	asprintf (&fname, name ? name : dflt, ::thisnode);	707	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
492		708
493	if (!ABSOLUTE_PATH (fname))	709	if (!ABSOLUTE_PATH (fname))
494	{	710	{
495	char *rname = fname;	711	char *rname = fname;
496	asprintf (&fname, "%s/%s", confbase, rname);	712	asprintf (&fname, "%s/%s", confbase, rname);
497	free (rname);	713	free (rname);
498	}	714	}
499		715
500	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	);
501	}	737	}
502		738
503	void	739	void
504	configuration::print ()	740	configuration::print ()
505	{	741	{
…		…
512	printf (_("interface: %s\n"), ifname);	748	printf (_("interface: %s\n"), ifname);
513	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	749	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
514	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);
515	printf ("\n");	751	printf ("\n");
516		752
517	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	753	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
518	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	754	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
519		755
520	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	756	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
521	(*i)->print ();	757	(*i)->print ();
522		758
523	printf ("\n");	759	printf ("\n");
…		…
533	configuration::~configuration ()	769	configuration::~configuration ()
534	{	770	{
535	cleanup ();	771	cleanup ();
536	}	772	}
537		773
538

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Comparing gvpe/src/conf.C (file contents): Revision 1.36 by pcg, Sun Mar 20 02:34:16 2005 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 1.36 by pcg, Sun Mar 20 02:34:16 2005 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC