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Comparing gvpe/src/conf.C (file contents):
Revision 1.21 by pcg, Sat Jan 17 01:18:36 2004 UTC vs.
Revision 1.41 by pcg, Tue Apr 26 00:55:55 2005 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) 2003-2005 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
6 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
7 the Free Software Foundation; either version 2 of the License, or 9 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version. 10 (at your 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,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 but 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
13 GNU General Public License for more details. 15 GNU General 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
16 along with this program; if not, write to the Free Software 18 along with gvpe; if not, write to the Free Software
17 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18*/ 20*/
19 21
20#include "config.h" 22#include "config.h"
21 23
22#include <cstdio> 24#include <cstdio>
… …
33 35
34#include <openssl/err.h> 36#include <openssl/err.h>
35#include <openssl/pem.h> 37#include <openssl/pem.h>
36#include <openssl/rsa.h> 38#include <openssl/rsa.h>
37#include <openssl/rand.h> 39#include <openssl/rand.h>
38 40#include <openssl/bn.h>
39#include "gettext.h"
40 41
41#include "conf.h" 42#include "conf.h"
42#include "slog.h" 43#include "slog.h"
43#include "util.h" 44#include "util.h"
44 45
45char *confbase; 46char *confbase;
46char *thisnode; 47char *thisnode;
47char *identname; 48char *identname;
48char *pidfilename;
49 49
50struct configuration conf; 50struct configuration conf;
51 51
52u8 best_protocol (u8 protset) 52u8 best_protocol (u8 protset)
53{ 53{
54 if (protset & PROT_IPv4 ) return PROT_IPv4; 54 if (protset & PROT_IPv4 ) return PROT_IPv4;
55 if (protset & PROT_ICMPv4) return PROT_ICMPv4; 55 if (protset & PROT_ICMPv4) return PROT_ICMPv4;
56 if (protset & PROT_UDPv4 ) return PROT_UDPv4; 56 if (protset & PROT_UDPv4 ) return PROT_UDPv4;
57 if (protset & PROT_TCPv4 ) return PROT_TCPv4; 57 if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58 if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58 59
59 return 0; 60 return 0;
60} 61}
61 62
62const char *strprotocol (u8 protocol) 63const char *strprotocol (u8 protocol)
63{ 64{
64 if (protocol & PROT_IPv4 ) return "rawip"; 65 if (protocol & PROT_IPv4 ) return "rawip";
65 if (protocol & PROT_ICMPv4) return "icmp"; 66 if (protocol & PROT_ICMPv4) return "icmp";
66 if (protocol & PROT_UDPv4 ) return "udp"; 67 if (protocol & PROT_UDPv4 ) return "udp";
67 if (protocol & PROT_TCPv4 ) return "tcp"; 68 if (protocol & PROT_TCPv4 ) return "tcp";
69 if (protocol & PROT_DNSv4 ) return "dns";
68 70
69 return "<unknown>"; 71 return "<unknown>";
70} 72}
71 73
72void 74void
… …
86 ); 88 );
87} 89}
88 90
89conf_node::~conf_node () 91conf_node::~conf_node ()
90{ 92{
93#if 0
94 // does not work, because string pointers etc. are shared
95 // is not called, however
91 if (rsa_key) 96 if (rsa_key)
92 RSA_free (rsa_key); 97 RSA_free (rsa_key);
93 98
94 free (nodename); 99 free (nodename);
95 free (hostname); 100 free (hostname);
101 free (if_up_data);
102#if ENABLE_DNS
103 free (domain);
104 free (dns_hostname);
105#endif
106#endif
96} 107}
97 108
98void configuration::init () 109void configuration::init ()
99{ 110{
100 memset (this, 0, sizeof (*this)); 111 memset (this, 0, sizeof (*this));
… …
107#if ENABLE_ICMP 118#if ENABLE_ICMP
108 icmp_type = ICMP_ECHOREPLY; 119 icmp_type = ICMP_ECHOREPLY;
109#endif 120#endif
110 121
111 default_node.udp_port = DEFAULT_UDPPORT; 122 default_node.udp_port = DEFAULT_UDPPORT;
112 default_node.tcp_port = DEFAULT_UDPPORT; 123 default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
113 default_node.connectmode = conf_node::C_ALWAYS; 124 default_node.connectmode = conf_node::C_ALWAYS;
114 default_node.compress = true; 125 default_node.compress = true;
115 default_node.protocols = PROT_UDPv4; 126 default_node.protocols = 0;
127 default_node.max_retry = DEFAULT_MAX_RETRY;
128 default_node.if_up_data = strdup ("");
129
130#if ENABLE_DNS
131 default_node.dns_port = 0; // default is 0 == client
132
133 dns_forw_host = strdup ("127.0.0.1");
134 dns_forw_port = 53;
135 dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
136 dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
137 dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
138 dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
139#endif
140
141 conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
116} 142}
117 143
118void configuration::cleanup() 144void configuration::cleanup()
119{ 145{
120 if (rsa_key) 146 if (rsa_key)
121 RSA_free (rsa_key); 147 RSA_free (rsa_key);
122 148
123 rsa_key = 0; 149 rsa_key = 0;
124 150
151 free (pidfilename); pidfilename = 0;
125 free (ifname); ifname = 0; 152 free (ifname); ifname = 0;
126#if ENABLE_HTTP_PROXY 153#if ENABLE_HTTP_PROXY
127 free (proxy_host); proxy_host = 0; 154 free (proxy_host); proxy_host = 0;
128 free (proxy_auth); proxy_auth = 0; 155 free (proxy_auth); proxy_auth = 0;
156#endif
157#if ENABLE_DNS
158 free (dns_forw_host); dns_forw_host = 0;
129#endif 159#endif
130} 160}
131 161
132void 162void
133configuration::clear_config () 163configuration::clear ()
134{ 164{
135 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i) 165 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
136 delete *i; 166 delete *i;
137 167
138 nodes.clear (); 168 nodes.clear ();
139 169
140 cleanup (); 170 cleanup ();
141 init (); 171 init ();
142} 172}
143 173
144#define parse_bool(target,name,trueval,falseval) \ 174#define parse_bool(target,name,trueval,falseval) do { \
145 if (!strcmp (val, "yes")) target = trueval; \ 175 if (!strcmp (val, "yes")) target = trueval; \
146 else if (!strcmp (val, "no")) target = falseval; \ 176 else if (!strcmp (val, "no")) target = falseval; \
147 else if (!strcmp (val, "true")) target = trueval; \ 177 else if (!strcmp (val, "true")) target = trueval; \
148 else if (!strcmp (val, "false")) target = falseval; \ 178 else if (!strcmp (val, "false")) target = falseval; \
149 else if (!strcmp (val, "on")) target = trueval; \ 179 else if (!strcmp (val, "on")) target = trueval; \
150 else if (!strcmp (val, "off")) target = falseval; \ 180 else if (!strcmp (val, "off")) target = falseval; \
151 else \ 181 else \
152 slog (L_WARN, \ 182 return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed. (ignored)"); \
153 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ 183} while (0)
154 name, var, fname, lineno);
155 184
156void configuration::read_config (bool need_keys) 185const char *
186configuration_parser::parse_line (char *line)
187{
188 {
189 char *end = line + strlen (line);
190
191 while (*end < ' ' && end >= line)
192 end--;
193
194 *++end = 0;
195 }
196
197 char *tok = line;
198 const char *var = strtok (tok, "\t =");
199 tok = 0;
200
201 if (!var || !var[0])
202 return 0; /* no tokens on this line */
203
204 if (var[0] == '#')
205 return 0; /* comment: ignore */
206
207 char *val = strtok (NULL, "\t\n\r =");
208
209 if (!val || val[0] == '#')
210 return _("no value given for variable. (ignored)");
211
212 if (!strcmp (var, "on"))
213 {
214 if (!::thisnode
215 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
216 || !strcmp (val, ::thisnode))
217 return parse_line (strtok (NULL, "\n\r"));
218 else
219 return 0;
220 }
221
222 // truly global
223 if (!strcmp (var, "loglevel"))
224 {
225 loglevel l = string_to_loglevel (val);
226
227 if (l == L_NONE)
228 return _("unknown loglevel. (skipping)");
229 }
230 else if (!strcmp (var, "ip-proto"))
231 conf.ip_proto = atoi (val);
232 else if (!strcmp (var, "icmp-type"))
233 {
234#if ENABLE_ICMP
235 conf.icmp_type = atoi (val);
236#endif
237 }
238
239 // per config
240 else if (!strcmp (var, "node"))
241 {
242 parse_argv ();
243
244 conf.default_node.id++;
245 node = new conf_node (conf.default_node);
246 conf.nodes.push_back (node);
247 node->nodename = strdup (val);
248
249 {
250 char *fname;
251 FILE *f;
252
253 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
254
255 f = fopen (fname, "r");
256 if (f)
257 {
258 node->rsa_key = RSA_new ();
259
260 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
261 {
262 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
263 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
264 exit (EXIT_FAILURE);
265 }
266
267 require (RSA_blinding_on (node->rsa_key, 0));
268
269 fclose (f);
270 }
271 else
272 {
273 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
274
275 if (need_keys)
276 exit (EXIT_FAILURE);
277 }
278
279 free (fname);
280 }
281
282 if (::thisnode && !strcmp (node->nodename, ::thisnode))
283 conf.thisnode = node;
284 }
285 else if (!strcmp (var, "private-key"))
286 free (conf.prikeyfile), conf.prikeyfile = strdup (val);
287 else if (!strcmp (var, "ifpersist"))
288 parse_bool (conf.ifpersist, "ifpersist", true, false);
289 else if (!strcmp (var, "ifname"))
290 free (conf.ifname), conf.ifname = strdup (val);
291 else if (!strcmp (var, "rekey"))
292 conf.rekey = atoi (val);
293 else if (!strcmp (var, "keepalive"))
294 conf.keepalive = atoi (val);
295 else if (!strcmp (var, "mtu"))
296 conf.mtu = atoi (val);
297 else if (!strcmp (var, "if-up"))
298 free (conf.script_if_up), conf.script_if_up = strdup (val);
299 else if (!strcmp (var, "node-up"))
300 free (conf.script_node_up), conf.script_node_up = strdup (val);
301 else if (!strcmp (var, "node-down"))
302 free (conf.script_node_down), conf.script_node_down = strdup (val);
303 else if (!strcmp (var, "pid-file"))
304 free (conf.pidfilename), conf.pidfilename = strdup (val);
305 else if (!strcmp (var, "dns-forw-host"))
306 {
307#if ENABLE_DNS
308 free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
309#endif
310 }
311 else if (!strcmp (var, "dns-forw-port"))
312 {
313#if ENABLE_DNS
314 conf.dns_forw_port = atoi (val);
315#endif
316 }
317 else if (!strcmp (var, "dns-timeout-factor"))
318 {
319#if ENABLE_DNS
320 conf.dns_timeout_factor = atof (val);
321#endif
322 }
323 else if (!strcmp (var, "dns-send-interval"))
324 {
325#if ENABLE_DNS
326 conf.dns_send_interval = atoi (val);
327#endif
328 }
329 else if (!strcmp (var, "dns-overlap-factor"))
330 {
331#if ENABLE_DNS
332 conf.dns_overlap_factor = atof (val);
333#endif
334 }
335 else if (!strcmp (var, "dns-max-outstanding"))
336 {
337#if ENABLE_DNS
338 conf.dns_max_outstanding = atoi (val);
339#endif
340 }
341 else if (!strcmp (var, "http-proxy-host"))
342 {
343#if ENABLE_HTTP_PROXY
344 free (conf.proxy_host), conf.proxy_host = strdup (val);
345#endif
346 }
347 else if (!strcmp (var, "http-proxy-port"))
348 {
349#if ENABLE_HTTP_PROXY
350 conf.proxy_port = atoi (val);
351#endif
352 }
353 else if (!strcmp (var, "http-proxy-auth"))
354 {
355#if ENABLE_HTTP_PROXY
356 conf.proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val));
357#endif
358 }
359
360 /* node-specific, non-defaultable */
361 else if (node != &conf.default_node && !strcmp (var, "hostname"))
362 free (node->hostname), node->hostname = strdup (val);
363
364 /* node-specific, defaultable */
365 else if (!strcmp (var, "udp-port"))
366 node->udp_port = atoi (val);
367 else if (!strcmp (var, "tcp-port"))
368 node->tcp_port = atoi (val);
369 else if (!strcmp (var, "dns-hostname"))
370 {
371#if ENABLE_DNS
372 free (node->dns_hostname), node->dns_hostname = strdup (val);
373#endif
374 }
375 else if (!strcmp (var, "dns-port"))
376 {
377#if ENABLE_DNS
378 node->dns_port = atoi (val);
379#endif
380 }
381 else if (!strcmp (var, "dns-domain"))
382 {
383#if ENABLE_DNS
384 free (node->domain), node->domain = strdup (val);
385#endif
386 }
387 else if (!strcmp (var, "if-up-data"))
388 free (node->if_up_data), node->if_up_data = strdup (val);
389 else if (!strcmp (var, "router-priority"))
390 node->routerprio = atoi (val);
391 else if (!strcmp (var, "max-retry"))
392 node->max_retry = atoi (val);
393 else if (!strcmp (var, "connect"))
394 {
395 if (!strcmp (val, "ondemand"))
396 node->connectmode = conf_node::C_ONDEMAND;
397 else if (!strcmp (val, "never"))
398 node->connectmode = conf_node::C_NEVER;
399 else if (!strcmp (val, "always"))
400 node->connectmode = conf_node::C_ALWAYS;
401 else if (!strcmp (val, "disabled"))
402 node->connectmode = conf_node::C_DISABLED;
403 else
404 return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
405 }
406 else if (!strcmp (var, "inherit-tos"))
407 parse_bool (node->inherit_tos, "inherit-tos", true, false);
408 else if (!strcmp (var, "compress"))
409 parse_bool (node->compress, "compress", true, false);
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 return _("unknown configuration directive. (ignored)");
441
442 return 0;
443}
444
445void configuration_parser::parse_argv ()
446{
447 for (int i = 0; i < argc; ++i)
448 {
449 char *v = argv [i];
450
451 if (!*v)
452 continue;
453
454 char *enode = v;
455
456 while (*enode != '.' && *enode > ' ' && *enode != '=' && *enode)
457 enode++;
458
459 if (*enode != '.')
460 enode = 0;
461
462 char *wnode = node == &conf.default_node
463 ? 0
464 : node->nodename;
465
466 if ((!wnode && !enode)
467 || (wnode && enode && !strncmp (wnode, v, enode - v)))
468 {
469 const char *warn = parse_line (enode ? enode + 1 : v);
470
471 if (warn)
472 slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
473
474 *v = 0;
475 }
476 }
477}
478
479configuration_parser::configuration_parser (configuration &conf,
480 bool need_keys,
481 int argc,
482 char **argv)
483: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
157{ 484{
158 char *fname; 485 char *fname;
159 FILE *f; 486 FILE *f;
160 487
161 clear_config (); 488 conf.clear ();
162 489
163 asprintf (&fname, "%s/vped.conf", confbase); 490 asprintf (&fname, "%s/gvpe.conf", confbase);
164 f = fopen (fname, "r"); 491 f = fopen (fname, "r");
165 492
166 if (f) 493 if (f)
167 { 494 {
168 char line[16384]; 495 char line[16384];
169 int lineno = 0; 496 int lineno = 0;
170 char *var, *val; 497 node = &conf.default_node;
171 conf_node *node = &default_node;
172 498
173 while (fgets (line, sizeof (line), f)) 499 while (fgets (line, sizeof (line), f))
174 { 500 {
175 lineno++; 501 lineno++;
176 502
177 { 503 const char *warn = parse_line (line);
178 char *end = line + strlen (line);
179 504
180 while (*end < ' ' && end >= line) 505 if (warn)
181 end--; 506 slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
182
183 *++end = 0;
184 }
185
186 char *tok = line;
187
188retry:
189 var = strtok (tok, "\t =");
190 tok = 0;
191
192 if (!var || !var[0])
193 continue; /* no tokens on this line */
194
195 if (var[0] == '#')
196 continue; /* comment: ignore */
197
198 val = strtok (NULL, "\t\n\r =");
199
200 if (!val || val[0] == '#')
201 {
202 slog (L_WARN,
203 _("no value for variable `%s', at '%s' line %d"),
204 var, fname, lineno);
205 break;
206 }
207
208 if (!strcmp (var, "on"))
209 {
210 if (!::thisnode
211 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
212 || !strcmp (val, ::thisnode))
213 goto retry;
214
215 continue;
216 }
217
218 // truly global
219 if (!strcmp (var, "loglevel"))
220 {
221 loglevel l = string_to_loglevel (val);
222
223 if (l != L_NONE)
224 llevel = l;
225 else
226 slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
227 }
228 else if (!strcmp (var, "ip-proto"))
229 ip_proto = atoi (val);
230 else if (!strcmp (var, "icmp-type"))
231 {
232#if ENABLE_ICMP
233 icmp_type = atoi (val);
234#endif
235 }
236
237 // per config
238 else if (!strcmp (var, "node"))
239 {
240 default_node.id++;
241
242 node = new conf_node (default_node);
243
244 nodes.push_back (node);
245
246 node->nodename = strdup (val);
247
248 {
249 char *fname;
250 FILE *f;
251
252 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
253
254 f = fopen (fname, "r");
255 if (f)
256 {
257 node->rsa_key = RSA_new ();
258
259 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
260 {
261 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
262 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
263 exit (1);
264 }
265
266 RSA_blinding_on (node->rsa_key, 0);
267
268 fclose (f);
269 }
270 else
271 {
272 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
273
274 if (need_keys)
275 exit (1);
276 }
277
278 free (fname);
279 }
280
281 if (!::thisnode || !strcmp (node->nodename, ::thisnode))
282 thisnode = node;
283 }
284 else if (!strcmp (var, "private-key"))
285 prikeyfile = strdup (val);
286 else if (!strcmp (var, "ifpersist"))
287 {
288 parse_bool (ifpersist, "ifpersist", true, false);
289 }
290 else if (!strcmp (var, "ifname"))
291 ifname = strdup (val);
292 else if (!strcmp (var, "rekey"))
293 rekey = atoi (val);
294 else if (!strcmp (var, "keepalive"))
295 keepalive = atoi (val);
296 else if (!strcmp (var, "mtu"))
297 mtu = atoi (val);
298 else if (!strcmp (var, "if-up"))
299 script_if_up = strdup (val);
300 else if (!strcmp (var, "node-up"))
301 script_node_up = strdup (val);
302 else if (!strcmp (var, "node-down"))
303 script_node_down = strdup (val);
304 else if (!strcmp (var, "http-proxy-host"))
305 {
306#if ENABLE_HTTP_PROXY
307 proxy_host = strdup (val);
308#endif
309 }
310 else if (!strcmp (var, "http-proxy-port"))
311 {
312#if ENABLE_HTTP_PROXY
313 proxy_port = atoi (val);
314#endif
315 }
316 else if (!strcmp (var, "http-proxy-auth"))
317 {
318#if ENABLE_HTTP_PROXY
319 proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val));
320#endif
321 }
322
323 /* node-specific, non-defaultable */
324 else if (node != &default_node && !strcmp (var, "hostname"))
325 {
326 free (node->hostname);
327 node->hostname = strdup (val);
328 }
329
330 /* node-specific, defaultable */
331 else if (!strcmp (var, "udp-port"))
332 node->udp_port = atoi (val);
333 else if (!strcmp (var, "tcp-port"))
334 node->tcp_port = atoi (val);
335 else if (!strcmp (var, "router-priority"))
336 node->routerprio = atoi (val);
337 else if (!strcmp (var, "connect"))
338 {
339 if (!strcmp (val, "ondemand"))
340 node->connectmode = conf_node::C_ONDEMAND;
341 else if (!strcmp (val, "never"))
342 node->connectmode = conf_node::C_NEVER;
343 else if (!strcmp (val, "always"))
344 node->connectmode = conf_node::C_ALWAYS;
345 else if (!strcmp (val, "disabled"))
346 node->connectmode = conf_node::C_DISABLED;
347 else
348 slog (L_WARN,
349 _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
350 var, fname, lineno);
351 }
352 else if (!strcmp (var, "inherit-tos"))
353 {
354 parse_bool (node->inherit_tos, "inherit-tos", true, false);
355 }
356 else if (!strcmp (var, "compress"))
357 {
358 parse_bool (node->compress, "compress", true, false);
359 }
360 // all these bool options really really cost a lot of executable size!
361 else if (!strcmp (var, "enable-tcp"))
362 {
363#if ENABLE_TCP
364 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
365#endif
366 }
367 else if (!strcmp (var, "enable-icmp"))
368 {
369#if ENABLE_ICMP
370 u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v;
371#endif
372 }
373 else if (!strcmp (var, "enable-udp"))
374 {
375 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
376 }
377 else if (!strcmp (var, "enable-rawip"))
378 {
379 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
380 }
381
382 // unknown or misplaced
383 else
384 slog (L_WARN,
385 _("unknown or misplaced variable `%s', at '%s' line %d"),
386 var, fname, lineno);
387 } 507 }
388 508
389 fclose (f); 509 fclose (f);
510
511 parse_argv ();
390 } 512 }
391 else 513 else
392 { 514 {
393 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); 515 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
394 exit (1); 516 exit (EXIT_FAILURE);
395 } 517 }
396 518
397 free (fname); 519 free (fname);
398 520
399 fname = config_filename (prikeyfile, "hostkey"); 521 fname = conf.config_filename (conf.prikeyfile, "hostkey");
400 522
401 f = fopen (fname, "r"); 523 f = fopen (fname, "r");
402 if (f) 524 if (f)
403 { 525 {
404 rsa_key = RSA_new (); 526 conf.rsa_key = RSA_new ();
405 527
406 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL)) 528 if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
407 { 529 {
408 ERR_load_RSA_strings (); ERR_load_PEM_strings (); 530 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
409 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); 531 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
410 exit (1); 532 exit (EXIT_FAILURE);
411 } 533 }
412 534
413 RSA_blinding_on (rsa_key, 0); 535 require (RSA_blinding_on (conf.rsa_key, 0));
414 536
415 fclose (f); 537 fclose (f);
416 } 538 }
417 else 539 else
418 { 540 {
419 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); 541 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
420 542
421 if (need_keys) 543 if (need_keys)
422 exit (1); 544 exit (EXIT_FAILURE);
545 }
546
547 if (need_keys && ::thisnode
548 && conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
549 if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
550 || BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
551 {
552 slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
553 exit (EXIT_FAILURE);
423 } 554 }
424 555
425 free (fname); 556 free (fname);
426} 557}
427 558
428char *configuration::config_filename (const char *name, const char *dflt) 559char *configuration::config_filename (const char *name, const char *dflt)
… …
464 printf ("\n"); 595 printf ("\n");
465} 596}
466 597
467configuration::configuration () 598configuration::configuration ()
468{ 599{
600 asprintf (&confbase, "%s/gvpe", CONFDIR);
601
469 init (); 602 init ();
470} 603}
471 604
472configuration::~configuration () 605configuration::~configuration ()
473{ 606{

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