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

Comparing gvpe/src/conf.C (file contents):
Revision 1.35 by pcg, Fri Mar 18 01:53:05 2005 UTC vs.
Revision 1.67 by root, Thu Oct 25 04:32:27 2018 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) 2003-2008,2011,2018 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 >= line && *end < ' ')
		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, "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	{
187	char line[16384];	535	char line [2048];
188	int lineno = 0;	536	int lineno = 0;
189	char var, val;
190	conf_node *node = &default_node;
191		537
192	while (fgets (line, sizeof (line), f))	538	while (fgets (line, sizeof (line), f))
193	{	539	{
194	lineno++;	540	lineno++;
195		541
196	{	542	const char *warn = parse_line (line);
197	char *end = line + strlen (line);
198		543
199	while (*end < ' ' && end >= line)	544	if (warn)
200	end--;	545	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"),
223	var, fname, lineno);
224	break;
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	{
307	parse_bool (ifpersist, "ifpersist", true, false);
308	}
309	else if (!strcmp (var, "ifname"))
310	free (ifname), ifname = strdup (val);
311	else if (!strcmp (var, "rekey"))
312	rekey = atoi (val);
313	else if (!strcmp (var, "keepalive"))
314	keepalive = atoi (val);
315	else if (!strcmp (var, "mtu"))
316	mtu = atoi (val);
317	else if (!strcmp (var, "if-up"))
318	free (script_if_up), script_if_up = strdup (val);
319	else if (!strcmp (var, "node-up"))
320	free (script_node_up), script_node_up = strdup (val);
321	else if (!strcmp (var, "node-down"))
322	free (script_node_down), script_node_down = strdup (val);
323	else if (!strcmp (var, "pid-file"))
324	free (pidfilename), pidfilename = strdup (val);
325	else if (!strcmp (var, "dns-forw-host"))
326	{
327	#if ENABLE_DNS
328	free (dns_forw_host), dns_forw_host = strdup (val);
329	#endif
330	}
331	else if (!strcmp (var, "dns-forw-port"))
332	{
333	#if ENABLE_DNS
334	dns_forw_port = atoi (val);
335	#endif
336	}
337	else if (!strcmp (var, "http-proxy-host"))
338	{
339	#if ENABLE_HTTP_PROXY
340	free (proxy_host), proxy_host = strdup (val);
341	#endif
342	}
343	else if (!strcmp (var, "http-proxy-port"))
344	{
345	#if ENABLE_HTTP_PROXY
346	proxy_port = atoi (val);
347	#endif
348	}
349	else if (!strcmp (var, "http-proxy-auth"))
350	{
351	#if ENABLE_HTTP_PROXY
352	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
353	#endif
354	}
355
356	/* node-specific, non-defaultable */
357	else if (node != &default_node && !strcmp (var, "hostname"))
358	free (node->hostname), node->hostname = strdup (val);
359
360	/* node-specific, defaultable */
361	else if (!strcmp (var, "udp-port"))
362	node->udp_port = atoi (val);
363	else if (!strcmp (var, "tcp-port"))
364	node->tcp_port = atoi (val);
365	else if (!strcmp (var, "dns-hostname"))
366	{
367	#if ENABLE_DNS
368	free (node->dns_hostname), node->dns_hostname = strdup (val);
369	#endif
370	}
371	else if (!strcmp (var, "dns-port"))
372	{
373	#if ENABLE_DNS
374	node->dns_port = atoi (val);
375	#endif
376	}
377	else if (!strcmp (var, "dns-domain"))
378	{
379	#if ENABLE_DNS
380	free (node->domain), node->domain = strdup (val);
381	#endif
382	}
383	else if (!strcmp (var, "router-priority"))
384	node->routerprio = atoi (val);
385	else if (!strcmp (var, "max-retry"))
386	node->max_retry = atoi (val);
387	else if (!strcmp (var, "connect"))
388	{
389	if (!strcmp (val, "ondemand"))
390	node->connectmode = conf_node::C_ONDEMAND;
391	else if (!strcmp (val, "never"))
392	node->connectmode = conf_node::C_NEVER;
393	else if (!strcmp (val, "always"))
394	node->connectmode = conf_node::C_ALWAYS;
395	else if (!strcmp (val, "disabled"))
396	node->connectmode = conf_node::C_DISABLED;
397	else
398	slog (L_WARN,
399	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
400	var, fname, lineno);
401	}
402	else if (!strcmp (var, "inherit-tos"))
403	{
404	parse_bool (node->inherit_tos, "inherit-tos", true, false);
405	}
406	else if (!strcmp (var, "compress"))
407	{
408	parse_bool (node->compress, "compress", true, false);
409	}
410	// all these bool options really really cost a lot of executable size!
411	else if (!strcmp (var, "enable-tcp"))
412	{
413	#if ENABLE_TCP
414	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
415	#endif
416	}
417	else if (!strcmp (var, "enable-icmp"))
418	{
419	#if ENABLE_ICMP
420	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
421	#endif
422	}
423	else if (!strcmp (var, "enable-dns"))
424	{
425	#if ENABLE_DNS
426	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
427	#endif
428	}
429	else if (!strcmp (var, "enable-udp"))
430	{
431	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
432	}
433	else if (!strcmp (var, "enable-rawip"))
434	{
435	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
436	}
437
438	// unknown or misplaced
439	else
440	slog (L_WARN,
441	_("unknown or misplaced variable `%s', at '%s' line %d"),
442	var, fname, lineno);
443	}	546	}
444		547
445	fclose (f);	548	fclose (f);
446	}	549	}
447	else	550	else
448	{	551	{
449	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));
450	exit (EXIT_FAILURE);	553	exit (EXIT_FAILURE);
451	}	554	}
		555	}
452		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);
453	free (fname);	570	free (fname);
454		571
455	fname = config_filename (prikeyfile, "hostkey");	572	fname = conf.config_filename (conf.prikeyfile, "hostkey");
456		573
457	f = fopen (fname, "r");	574	if (FILE *f = fopen (fname, "r"))
458	if (f)
459	{	575	{
460	rsa_key = RSA_new ();	576	conf.rsa_key = RSA_new ();
461		577
462	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	578	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
463	{	579	{
464	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	580	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
465	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));
466	exit (EXIT_FAILURE);	582	exit (EXIT_FAILURE);
467	}	583	}
468		584
469	require (RSA_blinding_on (rsa_key, 0));	585	require (RSA_blinding_on (conf.rsa_key, 0));
470		586
471	fclose (f);	587	fclose (f);
472	}	588	}
473	else	589	else
474	{	590	{
475	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
476
477	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));
478	exit (EXIT_FAILURE);	594	exit (EXIT_FAILURE);
479	}
480
481	if (need_keys && ::thisnode
482	&& rsa_key && thisnode && thisnode->rsa_key)
483	if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
484	\|\| BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
485	{
486	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
487	exit (EXIT_FAILURE);
488	}	595	}
		596	}
489		597
490	free (fname);	598	free (fname);
491	}
492		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	{
		654	const BIGNUM conf_n, conf_e, thisnode_n, thisnode_e;
		655
		656	#if OPENSSL_VERSION_NUMBER >= 0x10100000 && !LIBRESSL_VERSION_NUMBER
		657	RSA_get0_key (conf.rsa_key, &conf_n, &conf_e, 0);
		658	RSA_get0_key (conf.thisnode->rsa_key, &thisnode_n, &thisnode_e, 0);
		659	#else
		660	conf_n = conf.thisnode->rsa_key->n;
		661	conf_e = conf.thisnode->rsa_key->e;
		662	thisnode_n = conf.rsa_key->n;
		663	thisnode_e = conf.rsa_key->e;
		664	#endif
		665	if (BN_cmp (conf_n, thisnode_n) != 0 \|\| BN_cmp (conf_e, thisnode_e) != 0)
		666	{
		667	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		668	exit (EXIT_FAILURE);
		669	}
		670	}
		671	}
		672	}
		673
		674	parse_argv ();
		675	}
		676
		677	void
		678	configuration_parser::parse_argv ()
		679	{
		680	for (int i = 0; i < argc; ++i)
		681	{
		682	char *v = argv [i];
		683
		684	if (!*v)
		685	continue;
		686
		687	char *enode = v;
		688
		689	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		690	enode++;
		691
		692	if (*enode != '.')
		693	enode = 0;
		694
		695	if (enode)
		696	{
		697	char *val = strdup (v);
		698	val [enode - v] = 0;
		699	node = conf.find_node (val);
		700	free (val);
		701
		702	if (!node)
		703	{
		704	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		705	continue;
		706	}
		707	}
		708	else
		709	node = &conf.default_node;
		710
		711	const char *warn = parse_line (enode ? enode + 1 : v);
		712
		713	if (warn)
		714	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		715	}
		716	}
		717
		718	char *
493	char configuration::config_filename (const char name, const char *dflt)	719	configuration::config_filename (const char name, const char dflt)
494	{	720	{
495	char *fname;	721	char *fname;
496		722
497	asprintf (&fname, name ? name : dflt, ::thisnode);	723	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
498		724
499	if (!ABSOLUTE_PATH (fname))	725	if (!ABSOLUTE_PATH (fname))
500	{	726	{
501	char *rname = fname;	727	char *rname = fname;
502	asprintf (&fname, "%s/%s", confbase, rname);	728	asprintf (&fname, "%s/%s", confbase, rname);
503	free (rname);	729	free (rname);
504	}	730	}
505		731
506	return fname;	732	return fname;
		733	}
		734
		735	void
		736	conf_node::print ()
		737	{
		738	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		739	id,
		740	id >> 8, id & 0xff,
		741	compress ? 'Y' : 'N',
		742	connectmode == C_ONDEMAND ? "ondemand"
		743	: connectmode == C_NEVER ? "never"
		744	: connectmode == C_ALWAYS ? "always"
		745	: connectmode == C_DISABLED ? "disabled"
		746	: "",
		747	nodename,
		748	protocols,
		749	hostname ? hostname : "",
		750	hostname ? ":" : "",
		751	hostname ? udp_port : 0
		752	);
507	}	753	}
508		754
509	void	755	void
510	configuration::print ()	756	configuration::print ()
511	{	757	{
…		…
518	printf (_("interface: %s\n"), ifname);	764	printf (_("interface: %s\n"), ifname);
519	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	765	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
520	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	766	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
521	printf ("\n");	767	printf ("\n");
522		768
523	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	769	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
524	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	770	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
525		771
526	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	772	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
527	(*i)->print ();	773	(*i)->print ();
528		774
529	printf ("\n");	775	printf ("\n");
…		…
539	configuration::~configuration ()	785	configuration::~configuration ()
540	{	786	{
541	cleanup ();	787	cleanup ();
542	}	788	}
543		789
544

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Comparing gvpe/src/conf.C (file contents): Revision 1.35 by pcg, Fri Mar 18 01:53:05 2005 UTC vs. Revision 1.67 by root, Thu Oct 25 04:32:27 2018 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.35 by pcg, Fri Mar 18 01:53:05 2005 UTC vs.
Revision 1.67 by root, Thu Oct 25 04:32:27 2018 UTC