ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/gvpe/src/conf.C
(Generate patch)

Comparing gvpe/src/conf.C (file contents):
Revision 1.8 by pcg, Wed Apr 2 03:25:17 2003 UTC vs.
Revision 1.35 by pcg, Fri Mar 18 01:53:05 2005 UTC

1/* 1/*
2 conf.c -- configuration code 2 conf.c -- configuration code
3 Copyright (C) 1998 Robert van der Meulen 3 Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
4 1998-2002 Ivo Timmermans <ivo@o2w.nl>
5 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6 2000 Cris van Pelt <tribbel@arise.dhs.org>
7 2003 Marc Lehmann <pcg@goof.com>
8 4
5 This file is part of GVPE.
6
9 This program is free software; you can redistribute it and/or modify 7 GVPE is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by 8 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or 9 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version. 10 (at your option) any later version.
13 11
14 This program is distributed in the hope that it will be useful, 12 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details. 15 GNU General Public License for more details.
18 16
19 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software 18 along with gvpe; if not, write to the Free Software
21 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22*/ 20*/
23 21
24#include "config.h" 22#include "config.h"
25 23
… …
31#include <netdb.h> 29#include <netdb.h>
32#include <sys/stat.h> 30#include <sys/stat.h>
33#include <sys/types.h> 31#include <sys/types.h>
34#include <unistd.h> 32#include <unistd.h>
35 33
36#include <netinet/in.h> 34#include "netcompat.h"
37 35
38#include <openssl/err.h> 36#include <openssl/err.h>
39#include <openssl/pem.h> 37#include <openssl/pem.h>
40#include <openssl/rsa.h> 38#include <openssl/rsa.h>
41#include <openssl/rand.h> 39#include <openssl/rand.h>
42 40#include <openssl/bn.h>
43#include "gettext.h"
44 41
45#include "conf.h" 42#include "conf.h"
46#include "slog.h" 43#include "slog.h"
47#include "util.h" 44#include "util.h"
48 45
49char *confbase; 46char *confbase;
50char *thisnode; 47char *thisnode;
51char *identname; 48char *identname;
52char *pidfilename;
53 49
54struct configuration conf; 50struct configuration conf;
55 51
56u8 best_protocol (u8 protset) 52u8 best_protocol (u8 protset)
57{ 53{
58 if (protset & PROT_IPv4) 54 if (protset & PROT_IPv4 ) return PROT_IPv4;
59 return PROT_IPv4; 55 if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56 if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57 if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58 if (protset & PROT_DNSv4 ) return PROT_DNSv4;
60 59
61 return PROT_UDPv4; 60 return 0;
62} 61}
63 62
64const char *strprotocol (u8 protocol) 63const char *strprotocol (u8 protocol)
65{ 64{
66 if (protocol & PROT_IPv4 ) return "rawip"; 65 if (protocol & PROT_IPv4 ) return "rawip";
66 if (protocol & PROT_ICMPv4) return "icmp";
67 if (protocol & PROT_UDPv4) return "udp"; 67 if (protocol & PROT_UDPv4 ) return "udp";
68 if (protocol & PROT_TCPv4 ) return "tcp";
69 if (protocol & PROT_DNSv4 ) return "dns";
68 70
69 return "<unknown>"; 71 return "<unknown>";
70}
71
72configuration::configuration ()
73{
74 init ();
75}
76
77configuration::~configuration ()
78{
79 cleanup ();
80}
81
82void configuration::init ()
83{
84 memset (this, 0, sizeof (*this));
85
86 rekey = DEFAULT_REKEY;
87 keepalive = DEFAULT_KEEPALIVE;
88 llevel = L_INFO;
89 ip_proto = IPPROTO_GRE;
90
91 default_node.udp_port = DEFAULT_UDPPORT;
92 default_node.tcp_port = DEFAULT_UDPPORT;
93 default_node.connectmode = conf_node::C_ALWAYS;
94 default_node.compress = true;
95 default_node.protocols = PROT_UDPv4;
96}
97
98void configuration::cleanup()
99{
100 if (rsa_key)
101 RSA_free (rsa_key);
102
103 free (ifname);
104
105 rsa_key = 0;
106 ifname = 0;
107}
108
109void
110configuration::clear_config ()
111{
112 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
113 delete *i;
114
115 nodes.clear ();
116
117 cleanup ();
118 init ();
119}
120
121#define parse_bool(target,name,trueval,falseval) \
122 if (!strcmp (val, "yes")) target = trueval; \
123 else if (!strcmp (val, "no")) target = falseval; \
124 else if (!strcmp (val, "true")) target = trueval; \
125 else if (!strcmp (val, "false")) target = falseval; \
126 else if (!strcmp (val, "on")) target = trueval; \
127 else if (!strcmp (val, "off")) target = falseval; \
128 else \
129 slog (L_WARN, \
130 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \
131 name, var, fname, lineno);
132
133void configuration::read_config (bool need_keys)
134{
135 char *fname;
136 FILE *f;
137
138 clear_config ();
139
140 asprintf (&fname, "%s/vped.conf", confbase);
141 f = fopen (fname, "r");
142
143 if (f)
144 {
145 char line[16384];
146 int lineno = 0;
147 char *var, *val;
148 conf_node *node = &default_node;
149
150 while (fgets (line, sizeof (line), f))
151 {
152 lineno++;
153
154 {
155 char *end = line + strlen (line);
156
157 while (*end < ' ' && end >= line)
158 end--;
159
160 *++end = 0;
161 }
162
163 char *tok = line;
164
165retry:
166 var = strtok (tok, "\t =");
167 tok = 0;
168
169 if (!var || !var[0])
170 continue; /* no tokens on this line */
171
172 if (var[0] == '#')
173 continue; /* comment: ignore */
174
175 val = strtok (NULL, "\t\n\r =");
176
177 if (!val || val[0] == '#')
178 {
179 slog (L_WARN,
180 _("no value for variable `%s', at '%s' line %d"),
181 var, fname, lineno);
182 break;
183 }
184
185 if (!strcmp (var, "on"))
186 {
187 if (!::thisnode
188 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
189 || !strcmp (val, ::thisnode))
190 goto retry;
191
192 continue;
193 }
194
195 // truly global
196 if (!strcmp (var, "loglevel"))
197 {
198 loglevel l = string_to_loglevel (val);
199
200 if (l != L_NONE)
201 llevel = l;
202 else
203 slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
204 }
205 else if (!strcmp (var, "ip-proto"))
206 ip_proto = atoi (val);
207
208 // per config
209 else if (!strcmp (var, "node"))
210 {
211 default_node.id++;
212
213 node = new conf_node (default_node);
214
215 nodes.push_back (node);
216
217 node->nodename = strdup (val);
218
219 {
220 char *fname;
221 FILE *f;
222
223 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
224
225 f = fopen (fname, "r");
226 if (f)
227 {
228 node->rsa_key = RSA_new ();
229
230 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
231 {
232 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
233 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
234 exit (1);
235 }
236
237 RSA_blinding_on (node->rsa_key, 0);
238
239 fclose (f);
240 }
241 else
242 {
243 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
244
245 if (need_keys)
246 exit (1);
247 }
248
249 free (fname);
250 }
251
252 if (!::thisnode || !strcmp (node->nodename, ::thisnode))
253 thisnode = node;
254 }
255 else if (!strcmp (var, "private-key"))
256 prikeyfile = strdup (val);
257 else if (!strcmp (var, "ifpersist"))
258 {
259 parse_bool (ifpersist, "ifpersist", true, false);
260 }
261 else if (!strcmp (var, "ifname"))
262 ifname = strdup (val);
263 else if (!strcmp (var, "rekey"))
264 rekey = atoi (val);
265 else if (!strcmp (var, "keepalive"))
266 keepalive = atoi (val);
267 else if (!strcmp (var, "mtu"))
268 mtu = atoi (val);
269 else if (!strcmp (var, "if-up"))
270 script_if_up = strdup (val);
271 else if (!strcmp (var, "node-up"))
272 script_node_up = strdup (val);
273 else if (!strcmp (var, "node-down"))
274 script_node_down = strdup (val);
275
276 /* node-specific, non-defaultable */
277 else if (node != &default_node && !strcmp (var, "hostname"))
278 {
279 free (node->hostname);
280 node->hostname = strdup (val);
281 }
282
283 /* node-specific, defaultable */
284 else if (!strcmp (var, "udp-port"))
285 node->udp_port = atoi (val);
286 else if (!strcmp (var, "tcp-port"))
287 node->tcp_port = atoi (val);
288 else if (!strcmp (var, "router-priority"))
289 node->routerprio = atoi (val);
290 else if (!strcmp (var, "connect"))
291 {
292 if (!strcmp (val, "ondemand"))
293 node->connectmode = conf_node::C_ONDEMAND;
294 else if (!strcmp (val, "never"))
295 node->connectmode = conf_node::C_NEVER;
296 else if (!strcmp (val, "always"))
297 node->connectmode = conf_node::C_ALWAYS;
298 else if (!strcmp (val, "disabled"))
299 node->connectmode = conf_node::C_DISABLED;
300 else
301 slog (L_WARN,
302 _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
303 var, fname, lineno);
304 }
305 else if (!strcmp (var, "inherit-tos"))
306 {
307 parse_bool (node->inherit_tos, "inherit-tos", true, false);
308 }
309 else if (!strcmp (var, "compress"))
310 {
311 parse_bool (node->compress, "compress", true, false);
312 }
313 // all these bool options really really cost a lot of executable size!
314 else if (!strcmp (var, "enable-tcp"))
315 {
316 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
317 }
318 else if (!strcmp (var, "enable-udp"))
319 {
320 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
321 }
322 else if (!strcmp (var, "enable-rawip"))
323 {
324 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
325 }
326
327 // unknown or misplaced
328 else
329 {
330 slog (L_WARN,
331 _("unknown or misplaced variable `%s', at '%s' line %d"),
332 var, fname, lineno);
333 }
334 }
335
336 fclose (f);
337 }
338 else
339 {
340 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
341 exit (1);
342 }
343
344 free (fname);
345
346 fname = config_filename (prikeyfile, "hostkey");
347
348 f = fopen (fname, "r");
349 if (f)
350 {
351 rsa_key = RSA_new ();
352
353 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))
354 {
355 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
356 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
357 exit (1);
358 }
359
360 RSA_blinding_on (rsa_key, 0);
361
362 fclose (f);
363 }
364 else
365 {
366 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
367
368 if (need_keys)
369 exit (1);
370 }
371
372 free (fname);
373}
374
375char *configuration::config_filename (const char *name, const char *dflt)
376{
377 char *fname;
378
379 asprintf (&fname, name ? name : dflt, ::thisnode);
380
381 if (!ABSOLUTE_PATH (fname))
382 {
383 char *rname = fname;
384 asprintf (&fname, "%s/%s", confbase, rname);
385 free (rname);
386 }
387
388 return fname;
389}
390
391void
392configuration::print ()
393{
394 printf (_("\nConfiguration\n\n"));
395 printf (_("# of nodes: %d\n"), nodes.size ());
396 printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>");
397 printf (_("MTU: %d\n"), mtu);
398 printf (_("rekeying interval: %d\n"), rekey);
399 printf (_("keepalive interval: %d\n"), keepalive);
400 printf (_("interface: %s\n"), ifname);
401 printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
402 printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);
403 printf ("\n");
404
405 printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
406 _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
407
408 for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
409 (*i)->print ();
410
411 printf ("\n");
412} 72}
413 73
414void 74void
415conf_node::print () 75conf_node::print ()
416{ 76{
… …
426 hostname ? ":" : "", 86 hostname ? ":" : "",
427 hostname ? udp_port : 0 87 hostname ? udp_port : 0
428 ); 88 );
429} 89}
430 90
91conf_node::~conf_node ()
92{
93 if (rsa_key)
94 RSA_free (rsa_key);
95
96 free (nodename);
97 free (hostname);
98#if ENABLE_DNS
99 free (domain);
100 free (dns_hostname);
101#endif
102}
103
104void configuration::init ()
105{
106 memset (this, 0, sizeof (*this));
107
108 mtu = DEFAULT_MTU;
109 rekey = DEFAULT_REKEY;
110 keepalive = DEFAULT_KEEPALIVE;
111 llevel = L_INFO;
112 ip_proto = IPPROTO_GRE;
113#if ENABLE_ICMP
114 icmp_type = ICMP_ECHOREPLY;
115#endif
116
117 default_node.udp_port = DEFAULT_UDPPORT;
118 default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
119 default_node.connectmode = conf_node::C_ALWAYS;
120 default_node.compress = true;
121 default_node.protocols = 0;
122 default_node.max_retry = DEFAULT_MAX_RETRY;
123
124#if ENABLE_DNS
125 default_node.dns_port = 0; // default is 0 == client
126 dns_forw_host = strdup ("127.0.0.1");
127 dns_forw_port = 53;
128#endif
129
130 conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
131}
132
133void configuration::cleanup()
134{
135 if (rsa_key)
136 RSA_free (rsa_key);
137
138 rsa_key = 0;
139
140 free (pidfilename); pidfilename = 0;
141 free (ifname); ifname = 0;
142#if ENABLE_HTTP_PROXY
143 free (proxy_host); proxy_host = 0;
144 free (proxy_auth); proxy_auth = 0;
145#endif
146#if ENABLE_DNS
147 free (dns_forw_host); dns_forw_host = 0;
148#endif
149}
150
151void
152configuration::clear_config ()
153{
154 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
155 delete *i;
156
157 nodes.clear ();
158
159 cleanup ();
160 init ();
161}
162
163#define parse_bool(target,name,trueval,falseval) \
164 if (!strcmp (val, "yes")) target = trueval; \
165 else if (!strcmp (val, "no")) target = falseval; \
166 else if (!strcmp (val, "true")) target = trueval; \
167 else if (!strcmp (val, "false")) target = falseval; \
168 else if (!strcmp (val, "on")) target = trueval; \
169 else if (!strcmp (val, "off")) target = falseval; \
170 else \
171 slog (L_WARN, \
172 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \
173 name, var, fname, lineno);
174
175void configuration::read_config (bool need_keys)
176{
177 char *fname;
178 FILE *f;
179
180 clear_config ();
181
182 asprintf (&fname, "%s/gvpe.conf", confbase);
183 f = fopen (fname, "r");
184
185 if (f)
186 {
187 char line[16384];
188 int lineno = 0;
189 char *var, *val;
190 conf_node *node = &default_node;
191
192 while (fgets (line, sizeof (line), f))
193 {
194 lineno++;
195
196 {
197 char *end = line + strlen (line);
198
199 while (*end < ' ' && end >= line)
200 end--;
201
202 *++end = 0;
203 }
204
205 char *tok = line;
206
207retry:
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 }
444
445 fclose (f);
446 }
447 else
448 {
449 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
450 exit (EXIT_FAILURE);
451 }
452
453 free (fname);
454
455 fname = config_filename (prikeyfile, "hostkey");
456
457 f = fopen (fname, "r");
458 if (f)
459 {
460 rsa_key = RSA_new ();
461
462 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))
463 {
464 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));
466 exit (EXIT_FAILURE);
467 }
468
469 require (RSA_blinding_on (rsa_key, 0));
470
471 fclose (f);
472 }
473 else
474 {
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)
478 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 }
489
490 free (fname);
491}
492
493char *configuration::config_filename (const char *name, const char *dflt)
494{
495 char *fname;
496
497 asprintf (&fname, name ? name : dflt, ::thisnode);
498
499 if (!ABSOLUTE_PATH (fname))
500 {
501 char *rname = fname;
502 asprintf (&fname, "%s/%s", confbase, rname);
503 free (rname);
504 }
505
506 return fname;
507}
508
509void
510configuration::print ()
511{
512 printf (_("\nConfiguration\n\n"));
513 printf (_("# of nodes: %d\n"), nodes.size ());
514 printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>");
515 printf (_("MTU: %d\n"), mtu);
516 printf (_("rekeying interval: %d\n"), rekey);
517 printf (_("keepalive interval: %d\n"), keepalive);
518 printf (_("interface: %s\n"), ifname);
519 printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
520 printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
521 printf ("\n");
522
523 printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
524 _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
525
526 for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
527 (*i)->print ();
528
529 printf ("\n");
530}
531
532configuration::configuration ()
533{
534 asprintf (&confbase, "%s/gvpe", CONFDIR);
535
536 init ();
537}
538
539configuration::~configuration ()
540{
541 cleanup ();
542}
543
544

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines