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

Comparing gvpe/src/conf.C (file contents):
Revision 1.27 by pcg, Fri Jun 11 15:56:31 2004 UTC vs.
Revision 1.66 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) 2003-2004 Marc Lehmann <pcg@goof.com>	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4		4
		5	This file is part of GVPE.
		6
5	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
6	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
7	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
8	(at your option) any later version.	10	option) any later version.
9		11
10	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
11	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13	GNU General Public License for more details.	15	Public License for more details.
14		16
15	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
16	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
17	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
18	*/	30	*/
19		31
20	#include "config.h"	32	#include "config.h"
21		33
22	#include <cstdio>	34	#include <cstdio>
26	#include <errno.h>	38	#include <errno.h>
27	#include <netdb.h>	39	#include <netdb.h>
28	#include <sys/stat.h>	40	#include <sys/stat.h>
29	#include <sys/types.h>	41	#include <sys/types.h>
30	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
31		44
32	#include "netcompat.h"	45	#include "netcompat.h"
33		46
34	#include <openssl/err.h>	47	#include <openssl/err.h>
35	#include <openssl/pem.h>	48	#include <openssl/pem.h>
36	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
37	#include <openssl/rand.h>	50	#include <openssl/rand.h>
38	#include <openssl/bn.h>	51	#include <openssl/bn.h>
39		52
40	#include "gettext.h"
41
42	#include "conf.h"	53	#include "conf.h"
43	#include "slog.h"	54	#include "slog.h"
44	#include "util.h"	55	#include "util.h"
45		56
46	char *confbase;	57	char *confbase;
47	char *thisnode;	58	char *thisnode;
48	char *identname;	59	char *identname;
49		60
50	struct configuration conf;	61	struct configuration conf;
51		62
		63	u8
52	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
53	{	65	{
54	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
55	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58	if (protset & PROT_DNSv4 ) return PROT_DNSv4;	70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
59		71
60	return 0;	72	return 0;
61	}	73	}
62		74
		75	const char *
63	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
64	{	77	{
65	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
66	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
67	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
68	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
69	if (protocol & PROT_DNSv4 ) return "dns";	82	if (protocol & PROT_DNSv4 ) return "dns";
70		83
71	return "<unknown>";	84	return "<unknown>";
72	}	85	}
73		86
74	void	87	static bool
75	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
76	{	89	{
77	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
78	id,	91	if ((i)[0] == '' && !(*i)[1])
79	id >> 8, id & 0xff,	92	return true;
80	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
81	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
82	connectmode == C_NEVER ? "never" :	95
83	connectmode == C_ALWAYS ? "always" : "",	96	return false;
84	nodename,	97	}
85	hostname ? hostname : "",	98
86	hostname ? ":" : "",	99	bool
87	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
88	);	101	{
		102	if (match_list (allow_direct, other->nodename))
		103	return true;
		104
		105	if (match_list (deny_direct, other->nodename))
		106	return false;
		107
		108	return true;
89	}	109	}
90		110
91	conf_node::~conf_node ()	111	conf_node::~conf_node ()
92	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
93	if (rsa_key)	116	if (rsa_key)
94	RSA_free (rsa_key);	117	RSA_free (rsa_key);
95		118
96	free (nodename);	119	free (nodename);
97	free (hostname);	120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
98	}	127	}
99		128
		129	void
100	void configuration::init ()	130	configuration::init ()
101	{	131	{
102	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
103		133
104	mtu = DEFAULT_MTU;	134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
105	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
106	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
107	llevel = L_INFO;	138	llevel = L_INFO;
108	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
109	#if ENABLE_ICMP	140	#if ENABLE_ICMP
…		…
112		143
113	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
114	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
115	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
116	default_node.compress = true;	147	default_node.compress = true;
117	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
118	default_node.max_retry = DEFAULT_MAX_RETRY;	149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
119		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
120	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");	166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
121	}	169	}
122		170
		171	void
123	void configuration::cleanup()	172	configuration::cleanup ()
124	{	173	{
125	if (rsa_key)	174	if (rsa_key)
126	RSA_free (rsa_key);	175	RSA_free (rsa_key);
127		176
128	rsa_key = 0;	177	rsa_key = 0;
129		178
		179	free (seed_dev); seed_dev = 0;
130	free (pidfilename); pidfilename = 0;	180	free (pidfilename); pidfilename = 0;
131	free (ifname); ifname = 0;	181	free (ifname); ifname = 0;
132	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
133	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
134	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
135	#endif	185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
136	}	194	}
137		195
138	void	196	void
139	configuration::clear_config ()	197	configuration::clear ()
140	{	198	{
141	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
142	delete *i;	200	delete *i;
143		201
144	nodes.clear ();	202	nodes.clear ();
145		203
146	cleanup ();	204	cleanup ();
147	init ();	205	init ();
148	}	206	}
149		207
		208	conf_node *
		209	configuration::find_node (const char *name)
		210	{
		211	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		212	if (!strcmp ((*i)->nodename, name))
		213	return *i;
		214
		215	return 0;
		216	}
		217
		218	//static bool
		219	//is_true (const char *name)
		220	//{
		221	//re
		222	//}
		223
150	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
151	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
152	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
153	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
154	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
155	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
156	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
157	else \	231	else \
158	slog (L_WARN, \
159	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	232	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
160	name, var, fname, lineno);	233	} while (0)
161		234
162	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
163	{	237	{
164	char *fname;	238	{
165	FILE *f;	239	char *end = line + strlen (line);
166		240
167	clear_config ();	241	while (end >= line && *end < ' ')
		242	end--;
168		243
169	asprintf (&fname, "%s/gvpe.conf", confbase);	244	*++end = 0;
170	f = fopen (fname, "r");	245	}
171		246
172	if (f)	247	char *tok = line;
		248	const char *var = strtok (tok, "\t =");
		249	tok = 0;
		250
		251	if (!var \|\| !var[0])
		252	return 0; /* no tokens on this line */
		253
		254	if (var[0] == '#')
		255	return 0; /* comment: ignore */
		256
		257	if (!strcmp (var, "global"))
		258	{
		259	node = &conf.default_node;
		260	return 0;
173	{	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	{
174	char line[16384];	535	char line [2048];
175	int lineno = 0;	536	int lineno = 0;
176	char var, val;
177	conf_node *node = &default_node;
178		537
179	while (fgets (line, sizeof (line), f))	538	while (fgets (line, sizeof (line), f))
180	{	539	{
181	lineno++;	540	lineno++;
182		541
183	{	542	const char *warn = parse_line (line);
184	char *end = line + strlen (line);
185		543
186	while (*end < ' ' && end >= line)	544	if (warn)
187	end--;	545	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
188
189	*++end = 0;
190	}
191
192	char *tok = line;
193
194	retry:
195	var = strtok (tok, "\t =");
196	tok = 0;
197
198	if (!var \|\| !var[0])
199	continue; /* no tokens on this line */
200
201	if (var[0] == '#')
202	continue; /* comment: ignore */
203
204	val = strtok (NULL, "\t\n\r =");
205
206	if (!val \|\| val[0] == '#')
207	{
208	slog (L_WARN,
209	_("no value for variable `%s', at '%s' line %d"),
210	var, fname, lineno);
211	break;
212	}
213
214	if (!strcmp (var, "on"))
215	{
216	if (!::thisnode
217	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
218	\|\| !strcmp (val, ::thisnode))
219	goto retry;
220
221	continue;
222	}
223
224	// truly global
225	if (!strcmp (var, "loglevel"))
226	{
227	loglevel l = string_to_loglevel (val);
228
229	if (l != L_NONE)
230	llevel = l;
231	else
232	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
233	}
234	else if (!strcmp (var, "ip-proto"))
235	ip_proto = atoi (val);
236	else if (!strcmp (var, "icmp-type"))
237	{
238	#if ENABLE_ICMP
239	icmp_type = atoi (val);
240	#endif
241	}
242
243	// per config
244	else if (!strcmp (var, "node"))
245	{
246	default_node.id++;
247
248	node = new conf_node (default_node);
249
250	nodes.push_back (node);
251
252	node->nodename = strdup (val);
253
254	{
255	char *fname;
256	FILE *f;
257
258	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
259
260	f = fopen (fname, "r");
261	if (f)
262	{
263	node->rsa_key = RSA_new ();
264
265	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
266	{
267	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
268	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
269	exit (EXIT_FAILURE);
270	}
271
272	require (RSA_blinding_on (node->rsa_key, 0));
273
274	fclose (f);
275	}
276	else
277	{
278	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
279
280	if (need_keys)
281	exit (EXIT_FAILURE);
282	}
283
284	free (fname);
285	}
286
287	if (::thisnode && !strcmp (node->nodename, ::thisnode))
288	thisnode = node;
289	}
290	else if (!strcmp (var, "private-key"))
291	free (prikeyfile), prikeyfile = strdup (val);
292	else if (!strcmp (var, "ifpersist"))
293	{
294	parse_bool (ifpersist, "ifpersist", true, false);
295	}
296	else if (!strcmp (var, "ifname"))
297	free (ifname), ifname = strdup (val);
298	else if (!strcmp (var, "rekey"))
299	rekey = atoi (val);
300	else if (!strcmp (var, "keepalive"))
301	keepalive = atoi (val);
302	else if (!strcmp (var, "mtu"))
303	mtu = atoi (val);
304	else if (!strcmp (var, "if-up"))
305	free (script_if_up), script_if_up = strdup (val);
306	else if (!strcmp (var, "node-up"))
307	free (script_node_up), script_node_up = strdup (val);
308	else if (!strcmp (var, "node-down"))
309	free (script_node_down), script_node_down = strdup (val);
310	else if (!strcmp (var, "pid-file"))
311	free (pidfilename), pidfilename = strdup (val);
312	else if (!strcmp (var, "http-proxy-host"))
313	{
314	#if ENABLE_HTTP_PROXY
315	free (proxy_host), proxy_host = strdup (val);
316	#endif
317	}
318	else if (!strcmp (var, "http-proxy-port"))
319	{
320	#if ENABLE_HTTP_PROXY
321	proxy_port = atoi (val);
322	#endif
323	}
324	else if (!strcmp (var, "http-proxy-auth"))
325	{
326	#if ENABLE_HTTP_PROXY
327	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
328	#endif
329	}
330
331	/* node-specific, non-defaultable */
332	else if (node != &default_node && !strcmp (var, "hostname"))
333	free (node->hostname), node->hostname = strdup (val);
334
335	/* node-specific, defaultable */
336	else if (!strcmp (var, "udp-port"))
337	node->udp_port = atoi (val);
338	else if (!strcmp (var, "tcp-port"))
339	node->tcp_port = atoi (val);
340	else if (!strcmp (var, "dns-port"))
341	node->dns_port = atoi (val);
342	else if (!strcmp (var, "router-priority"))
343	node->routerprio = atoi (val);
344	else if (!strcmp (var, "max-retry"))
345	node->max_retry = atoi (val);
346	else if (!strcmp (var, "connect"))
347	{
348	if (!strcmp (val, "ondemand"))
349	node->connectmode = conf_node::C_ONDEMAND;
350	else if (!strcmp (val, "never"))
351	node->connectmode = conf_node::C_NEVER;
352	else if (!strcmp (val, "always"))
353	node->connectmode = conf_node::C_ALWAYS;
354	else if (!strcmp (val, "disabled"))
355	node->connectmode = conf_node::C_DISABLED;
356	else
357	slog (L_WARN,
358	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
359	var, fname, lineno);
360	}
361	else if (!strcmp (var, "inherit-tos"))
362	{
363	parse_bool (node->inherit_tos, "inherit-tos", true, false);
364	}
365	else if (!strcmp (var, "compress"))
366	{
367	parse_bool (node->compress, "compress", true, false);
368	}
369	// all these bool options really really cost a lot of executable size!
370	else if (!strcmp (var, "enable-tcp"))
371	{
372	#if ENABLE_TCP
373	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
374	#endif
375	}
376	else if (!strcmp (var, "enable-icmp"))
377	{
378	#if ENABLE_ICMP
379	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
380	#endif
381	}
382	else if (!strcmp (var, "enable-dns"))
383	{
384	#if ENABLE_DNS
385	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
386	#endif
387	}
388	else if (!strcmp (var, "enable-udp"))
389	{
390	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
391	}
392	else if (!strcmp (var, "enable-rawip"))
393	{;
394	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
395	}
396
397	// unknown or misplaced
398	else
399	slog (L_WARN,
400	_("unknown or misplaced variable `%s', at '%s' line %d"),
401	var, fname, lineno);
402	}	546	}
403		547
404	fclose (f);	548	fclose (f);
405	}	549	}
406	else	550	else
407	{	551	{
408	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));
409	exit (EXIT_FAILURE);	553	exit (EXIT_FAILURE);
410	}	554	}
		555	}
411		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);
412	free (fname);	570	free (fname);
413		571
414	fname = config_filename (prikeyfile, "hostkey");	572	fname = conf.config_filename (conf.prikeyfile, "hostkey");
415		573
416	f = fopen (fname, "r");	574	if (FILE *f = fopen (fname, "r"))
417	if (f)
418	{	575	{
419	rsa_key = RSA_new ();	576	conf.rsa_key = RSA_new ();
420		577
421	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	578	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
422	{	579	{
423	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	580	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
424	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	581	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
425	exit (EXIT_FAILURE);	582	exit (EXIT_FAILURE);
426	}	583	}
427		584
428	require (RSA_blinding_on (rsa_key, 0));	585	require (RSA_blinding_on (conf.rsa_key, 0));
429		586
430	fclose (f);	587	fclose (f);
431	}	588	}
432	else	589	else
433	{	590	{
434	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
435
436	if (need_keys)	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));
437	exit (EXIT_FAILURE);	594	exit (EXIT_FAILURE);
438	}
439
440	if (need_keys && ::thisnode
441	&& rsa_key && thisnode && thisnode->rsa_key)
442	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
443	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
444	{
445	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
446	exit (EXIT_FAILURE);
447	}	595	}
		596	}
448		597
449	free (fname);	598	free (fname);
450	}
451		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 *
452	char configuration::config_filename (const char name, const char *dflt)	707	configuration::config_filename (const char name, const char dflt)
453	{	708	{
454	char *fname;	709	char *fname;
455		710
456	asprintf (&fname, name ? name : dflt, ::thisnode);	711	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
457		712
458	if (!ABSOLUTE_PATH (fname))	713	if (!ABSOLUTE_PATH (fname))
459	{	714	{
460	char *rname = fname;	715	char *rname = fname;
461	asprintf (&fname, "%s/%s", confbase, rname);	716	asprintf (&fname, "%s/%s", confbase, rname);
462	free (rname);	717	free (rname);
463	}	718	}
464		719
465	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	);
466	}	741	}
467		742
468	void	743	void
469	configuration::print ()	744	configuration::print ()
470	{	745	{
…		…
477	printf (_("interface: %s\n"), ifname);	752	printf (_("interface: %s\n"), ifname);
478	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	753	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
479	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);
480	printf ("\n");	755	printf ("\n");
481		756
482	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	757	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
483	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	758	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
484		759
485	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	760	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
486	(*i)->print ();	761	(*i)->print ();
487		762
488	printf ("\n");	763	printf ("\n");
…		…
498	configuration::~configuration ()	773	configuration::~configuration ()
499	{	774	{
500	cleanup ();	775	cleanup ();
501	}	776	}
502		777
503

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Comparing gvpe/src/conf.C (file contents): Revision 1.27 by pcg, Fri Jun 11 15:56:31 2004 UTC vs. Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.27 by pcg, Fri Jun 11 15:56:31 2004 UTC vs.
Revision 1.66 by root, Thu Jul 30 19:03:44 2015 UTC