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 1.17 by pcg, Tue Oct 14 15:48:15 2003 UTC vs.
Revision 1.49 by pcg, Sun Aug 10 22:18:58 2008 UTC

1/* 1/*
2 conf.c -- configuration code 2 conf.c -- configuration code
3 Copyright (C) 1998 Robert van der Meulen 3 Copyright (C) 2003-2008 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 it
10 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
11 the Free Software Foundation; either version 2 of the License, or 9 Free Software Foundation; either version 3 of the License, or (at your
12 (at your option) any later version. 10 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, but
15 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 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 GNU General
17 GNU General Public License for more details. 15 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 along
20 along with this program; if not, write to the Free Software 18 with this program; if not, see <http://www.gnu.org/licenses/>.
21 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.
22*/ 30*/
23 31
24#include "config.h" 32#include "config.h"
25 33
26#include <cstdio> 34#include <cstdio>
… …
37 45
38#include <openssl/err.h> 46#include <openssl/err.h>
39#include <openssl/pem.h> 47#include <openssl/pem.h>
40#include <openssl/rsa.h> 48#include <openssl/rsa.h>
41#include <openssl/rand.h> 49#include <openssl/rand.h>
42 50#include <openssl/bn.h>
43#include "gettext.h"
44 51
45#include "conf.h" 52#include "conf.h"
46#include "slog.h" 53#include "slog.h"
47#include "util.h" 54#include "util.h"
48 55
49char *confbase; 56char *confbase;
50char *thisnode; 57char *thisnode;
51char *identname; 58char *identname;
52char *pidfilename;
53 59
54struct configuration conf; 60struct configuration conf;
55 61
56u8 best_protocol (u8 protset) 62u8 best_protocol (u8 protset)
57{ 63{
58 if (protset & PROT_IPv4 ) return PROT_IPv4; 64 if (protset & PROT_IPv4 ) return PROT_IPv4;
59 if (protset & PROT_ICMPv4) return PROT_ICMPv4; 65 if (protset & PROT_ICMPv4) return PROT_ICMPv4;
60 if (protset & PROT_UDPv4 ) return PROT_UDPv4; 66 if (protset & PROT_UDPv4 ) return PROT_UDPv4;
61 if (protset & PROT_TCPv4 ) return PROT_TCPv4; 67 if (protset & PROT_TCPv4 ) return PROT_TCPv4;
68 if (protset & PROT_DNSv4 ) return PROT_DNSv4;
62 69
63 return 0; 70 return 0;
64} 71}
65 72
66const char *strprotocol (u8 protocol) 73const char *strprotocol (u8 protocol)
67{ 74{
68 if (protocol & PROT_IPv4 ) return "rawip"; 75 if (protocol & PROT_IPv4 ) return "rawip";
69 if (protocol & PROT_ICMPv4) return "icmp"; 76 if (protocol & PROT_ICMPv4) return "icmp";
70 if (protocol & PROT_UDPv4 ) return "udp"; 77 if (protocol & PROT_UDPv4 ) return "udp";
71 if (protocol & PROT_TCPv4 ) return "tcp"; 78 if (protocol & PROT_TCPv4 ) return "tcp";
79 if (protocol & PROT_DNSv4 ) return "dns";
72 80
73 return "<unknown>"; 81 return "<unknown>";
82}
83
84static bool
85match_list (const vector<const char *> &list, const char *str)
86{
87 for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
88 if ((*i)[0] == '*' && !(*i)[1])
89 return true;
90 else if (!strcmp (*i, str))
91 return true;
92
93 return false;
94}
95
96bool
97conf_node::may_direct (struct conf_node *other)
98{
99 if (match_list (allow_direct, other->nodename))
100 return true;
101
102 if (match_list (deny_direct, other->nodename))
103 return false;
104
105 return true;
74} 106}
75 107
76void 108void
77conf_node::print () 109conf_node::print ()
78{ 110{
79 printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", 111 printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",
80 id, 112 id,
81 id >> 8, id & 0xff, 113 id >> 8, id & 0xff,
82 compress ? 'Y' : 'N', 114 compress ? 'Y' : 'N',
83 connectmode == C_ONDEMAND ? "ondemand" : 115 connectmode == C_ONDEMAND ? "ondemand"
84 connectmode == C_NEVER ? "never" : 116 : connectmode == C_NEVER ? "never"
85 connectmode == C_ALWAYS ? "always" : "", 117 : connectmode == C_ALWAYS ? "always"
118 : connectmode == C_DISABLED ? "disabled"
119 : "",
86 nodename, 120 nodename,
87 hostname ? hostname : "", 121 hostname ? hostname : "",
88 hostname ? ":" : "", 122 hostname ? ":" : "",
89 hostname ? udp_port : 0 123 hostname ? udp_port : 0
90 ); 124 );
91} 125}
92 126
93conf_node::~conf_node () 127conf_node::~conf_node ()
94{ 128{
129#if 0
130 // does not work, because string pointers etc. are shared
131 // is not called, however
95 if (rsa_key) 132 if (rsa_key)
96 RSA_free (rsa_key); 133 RSA_free (rsa_key);
97 134
98 free (nodename); 135 free (nodename);
99 free (hostname); 136 free (hostname);
137 free (if_up_data);
138#if ENABLE_DNS
139 free (domain);
140 free (dns_hostname);
141#endif
142#endif
100} 143}
101 144
102void configuration::init () 145void configuration::init ()
103{ 146{
104 memset (this, 0, sizeof (*this)); 147 memset (this, 0, sizeof (*this));
105 148
149 mtu = DEFAULT_MTU;
106 rekey = DEFAULT_REKEY; 150 rekey = DEFAULT_REKEY;
107 keepalive = DEFAULT_KEEPALIVE; 151 keepalive = DEFAULT_KEEPALIVE;
108 llevel = L_INFO; 152 llevel = L_INFO;
109 ip_proto = IPPROTO_GRE; 153 ip_proto = IPPROTO_GRE;
110#if ENABLE_ICMP 154#if ENABLE_ICMP
111 icmp_type = ICMP_ECHOREPLY; 155 icmp_type = ICMP_ECHOREPLY;
112#endif 156#endif
113 157
114 default_node.udp_port = DEFAULT_UDPPORT; 158 default_node.udp_port = DEFAULT_UDPPORT;
115 default_node.tcp_port = DEFAULT_UDPPORT; 159 default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116 default_node.connectmode = conf_node::C_ALWAYS; 160 default_node.connectmode = conf_node::C_ALWAYS;
117 default_node.compress = true; 161 default_node.compress = true;
118 default_node.protocols = PROT_UDPv4; 162 default_node.protocols = 0;
163 default_node.max_retry = DEFAULT_MAX_RETRY;
164 default_node.max_ttl = DEFAULT_MAX_TTL;
165 default_node.max_queue = DEFAULT_MAX_QUEUE;
166 default_node.if_up_data = strdup ("");
167
168#if ENABLE_DNS
169 default_node.dns_port = 0; // default is 0 == client
170
171 dns_forw_host = strdup ("127.0.0.1");
172 dns_forw_port = 53;
173 dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
174 dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
175 dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
176 dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
177#endif
178
179 conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
119} 180}
120 181
121void configuration::cleanup() 182void configuration::cleanup()
122{ 183{
123 if (rsa_key) 184 if (rsa_key)
124 RSA_free (rsa_key); 185 RSA_free (rsa_key);
125 186
126 rsa_key = 0; 187 rsa_key = 0;
127 188
189 free (pidfilename); pidfilename = 0;
128 free (ifname); ifname = 0; 190 free (ifname); ifname = 0;
129#if ENABLE_HTTP_PROXY 191#if ENABLE_HTTP_PROXY
130 free (proxy_host); proxy_host = 0; 192 free (proxy_host); proxy_host = 0;
131 free (proxy_auth); proxy_auth = 0; 193 free (proxy_auth); proxy_auth = 0;
194#endif
195#if ENABLE_DNS
196 free (dns_forw_host); dns_forw_host = 0;
132#endif 197#endif
133} 198}
134 199
135void 200void
136configuration::clear_config () 201configuration::clear ()
137{ 202{
138 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i) 203 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
139 delete *i; 204 delete *i;
140 205
141 nodes.clear (); 206 nodes.clear ();
142 207
143 cleanup (); 208 cleanup ();
144 init (); 209 init ();
145} 210}
146 211
147#define parse_bool(target,name,trueval,falseval) \ 212#define parse_bool(target,name,trueval,falseval) do { \
148 if (!strcmp (val, "yes")) target = trueval; \ 213 if (!strcmp (val, "yes")) target = trueval; \
149 else if (!strcmp (val, "no")) target = falseval; \ 214 else if (!strcmp (val, "no")) target = falseval; \
150 else if (!strcmp (val, "true")) target = trueval; \ 215 else if (!strcmp (val, "true")) target = trueval; \
151 else if (!strcmp (val, "false")) target = falseval; \ 216 else if (!strcmp (val, "false")) target = falseval; \
152 else if (!strcmp (val, "on")) target = trueval; \ 217 else if (!strcmp (val, "on")) target = trueval; \
153 else if (!strcmp (val, "off")) target = falseval; \ 218 else if (!strcmp (val, "off")) target = falseval; \
154 else \ 219 else \
155 slog (L_WARN, \ 220 return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed. (ignored)"); \
156 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ 221} while (0)
157 name, var, fname, lineno);
158 222
159void configuration::read_config (bool need_keys) 223const char *
224configuration_parser::parse_line (char *line)
225{
226 {
227 char *end = line + strlen (line);
228
229 while (*end < ' ' && end >= line)
230 end--;
231
232 *++end = 0;
233 }
234
235 char *tok = line;
236 const char *var = strtok (tok, "\t =");
237 tok = 0;
238
239 if (!var || !var[0])
240 return 0; /* no tokens on this line */
241
242 if (var[0] == '#')
243 return 0; /* comment: ignore */
244
245 char *val = strtok (NULL, "\t\n\r =");
246
247 if (!val || val[0] == '#')
248 return _("no value given for variable. (ignored)");
249
250 if (!strcmp (var, "on"))
251 {
252 if (!::thisnode
253 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
254 || !strcmp (val, ::thisnode))
255 return parse_line (strtok (NULL, "\n\r"));
256 else
257 return 0;
258 }
259
260 // truly global
261 if (!strcmp (var, "loglevel"))
262 {
263 loglevel l = string_to_loglevel (val);
264
265 if (l == L_NONE)
266 return _("unknown loglevel. (skipping)");
267 }
268 else if (!strcmp (var, "ip-proto"))
269 conf.ip_proto = atoi (val);
270 else if (!strcmp (var, "icmp-type"))
271 {
272#if ENABLE_ICMP
273 conf.icmp_type = atoi (val);
274#endif
275 }
276
277 // per config
278 else if (!strcmp (var, "node"))
279 {
280 parse_argv ();
281
282 conf.default_node.id++;
283 node = new conf_node (conf.default_node);
284 conf.nodes.push_back (node);
285 node->nodename = strdup (val);
286
287 {
288 char *fname;
289 FILE *f;
290
291 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
292
293 f = fopen (fname, "r");
294 if (f)
295 {
296 node->rsa_key = RSA_new ();
297
298 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
299 {
300 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
301 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
302 exit (EXIT_FAILURE);
303 }
304
305 require (RSA_blinding_on (node->rsa_key, 0));
306
307 fclose (f);
308 }
309 else
310 {
311 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
312
313 if (need_keys)
314 exit (EXIT_FAILURE);
315 }
316
317 free (fname);
318 }
319
320 if (::thisnode && !strcmp (node->nodename, ::thisnode))
321 conf.thisnode = node;
322 }
323 else if (!strcmp (var, "private-key"))
324 free (conf.prikeyfile), conf.prikeyfile = strdup (val);
325 else if (!strcmp (var, "ifpersist"))
326 parse_bool (conf.ifpersist, "ifpersist", true, false);
327 else if (!strcmp (var, "ifname"))
328 free (conf.ifname), conf.ifname = strdup (val);
329 else if (!strcmp (var, "rekey"))
330 conf.rekey = atoi (val);
331 else if (!strcmp (var, "keepalive"))
332 conf.keepalive = atoi (val);
333 else if (!strcmp (var, "mtu"))
334 conf.mtu = atoi (val);
335 else if (!strcmp (var, "if-up"))
336 free (conf.script_if_up), conf.script_if_up = strdup (val);
337 else if (!strcmp (var, "node-up"))
338 free (conf.script_node_up), conf.script_node_up = strdup (val);
339 else if (!strcmp (var, "node-down"))
340 free (conf.script_node_down), conf.script_node_down = strdup (val);
341 else if (!strcmp (var, "pid-file"))
342 free (conf.pidfilename), conf.pidfilename = strdup (val);
343 else if (!strcmp (var, "dns-forw-host"))
344 {
345#if ENABLE_DNS
346 free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
347#endif
348 }
349 else if (!strcmp (var, "dns-forw-port"))
350 {
351#if ENABLE_DNS
352 conf.dns_forw_port = atoi (val);
353#endif
354 }
355 else if (!strcmp (var, "dns-timeout-factor"))
356 {
357#if ENABLE_DNS
358 conf.dns_timeout_factor = atof (val);
359#endif
360 }
361 else if (!strcmp (var, "dns-send-interval"))
362 {
363#if ENABLE_DNS
364 conf.dns_send_interval = atoi (val);
365#endif
366 }
367 else if (!strcmp (var, "dns-overlap-factor"))
368 {
369#if ENABLE_DNS
370 conf.dns_overlap_factor = atof (val);
371#endif
372 }
373 else if (!strcmp (var, "dns-max-outstanding"))
374 {
375#if ENABLE_DNS
376 conf.dns_max_outstanding = atoi (val);
377#endif
378 }
379 else if (!strcmp (var, "http-proxy-host"))
380 {
381#if ENABLE_HTTP_PROXY
382 free (conf.proxy_host), conf.proxy_host = strdup (val);
383#endif
384 }
385 else if (!strcmp (var, "http-proxy-port"))
386 {
387#if ENABLE_HTTP_PROXY
388 conf.proxy_port = atoi (val);
389#endif
390 }
391 else if (!strcmp (var, "http-proxy-auth"))
392 {
393#if ENABLE_HTTP_PROXY
394 conf.proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val));
395#endif
396 }
397
398 /* node-specific, non-defaultable */
399 else if (node != &conf.default_node && !strcmp (var, "hostname"))
400 free (node->hostname), node->hostname = strdup (val);
401
402 /* node-specific, defaultable */
403 else if (!strcmp (var, "udp-port"))
404 node->udp_port = atoi (val);
405 else if (!strcmp (var, "tcp-port"))
406 node->tcp_port = atoi (val);
407 else if (!strcmp (var, "dns-hostname"))
408 {
409#if ENABLE_DNS
410 free (node->dns_hostname), node->dns_hostname = strdup (val);
411#endif
412 }
413 else if (!strcmp (var, "dns-port"))
414 {
415#if ENABLE_DNS
416 node->dns_port = atoi (val);
417#endif
418 }
419 else if (!strcmp (var, "dns-domain"))
420 {
421#if ENABLE_DNS
422 free (node->domain), node->domain = strdup (val);
423#endif
424 }
425 else if (!strcmp (var, "if-up-data"))
426 free (node->if_up_data), node->if_up_data = strdup (val);
427 else if (!strcmp (var, "router-priority"))
428 node->routerprio = atoi (val);
429 else if (!strcmp (var, "max-retry"))
430 node->max_retry = atoi (val);
431 else if (!strcmp (var, "connect"))
432 {
433 if (!strcmp (val, "ondemand"))
434 node->connectmode = conf_node::C_ONDEMAND;
435 else if (!strcmp (val, "never"))
436 node->connectmode = conf_node::C_NEVER;
437 else if (!strcmp (val, "always"))
438 node->connectmode = conf_node::C_ALWAYS;
439 else if (!strcmp (val, "disabled"))
440 node->connectmode = conf_node::C_DISABLED;
441 else
442 return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
443 }
444 else if (!strcmp (var, "inherit-tos"))
445 parse_bool (node->inherit_tos, "inherit-tos", true, false);
446 else if (!strcmp (var, "compress"))
447 parse_bool (node->compress, "compress", true, false);
448 // all these bool options really really cost a lot of executable size!
449 else if (!strcmp (var, "enable-tcp"))
450 {
451#if ENABLE_TCP
452 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
453#endif
454 }
455 else if (!strcmp (var, "enable-icmp"))
456 {
457#if ENABLE_ICMP
458 u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v;
459#endif
460 }
461 else if (!strcmp (var, "enable-dns"))
462 {
463#if ENABLE_DNS
464 u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) | v;
465#endif
466 }
467 else if (!strcmp (var, "enable-udp"))
468 {
469 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
470 }
471 else if (!strcmp (var, "enable-rawip"))
472 {
473 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
474 }
475 else if (!strcmp (var, "allow-direct"))
476 node->allow_direct.push_back (strdup (val));
477 else if (!strcmp (var, "deny-direct"))
478 node->deny_direct.push_back (strdup (val));
479 else if (!strcmp (var, "max-ttl"))
480 node->max_ttl = atof (val);
481 else if (!strcmp (var, "max-queue"))
482 node->max_queue = atoi (val);
483
484 // unknown or misplaced
485 else
486 return _("unknown configuration directive. (ignored)");
487
488 return 0;
489}
490
491void conf_node::finalise ()
492{
493 if (max_queue < 1)
494 {
495 slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
496 max_queue = 1;
497 }
498
499 if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
500 {
501 //slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
502 connectmode = C_ALWAYS;
503 }
504}
505
506void configuration_parser::parse_argv ()
507{
508 for (int i = 0; i < argc; ++i)
509 {
510 char *v = argv [i];
511
512 if (!*v)
513 continue;
514
515 char *enode = v;
516
517 while (*enode != '.' && *enode > ' ' && *enode != '=' && *enode)
518 enode++;
519
520 if (*enode != '.')
521 enode = 0;
522
523 char *wnode = node == &conf.default_node
524 ? 0
525 : node->nodename;
526
527 if ((!wnode && !enode)
528 || (wnode && enode && !strncmp (wnode, v, enode - v)))
529 {
530 const char *warn = parse_line (enode ? enode + 1 : v);
531
532 if (warn)
533 slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
534
535 *v = 0;
536 }
537 }
538}
539
540configuration_parser::configuration_parser (configuration &conf,
541 bool need_keys,
542 int argc,
543 char **argv)
544: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
160{ 545{
161 char *fname; 546 char *fname;
162 FILE *f; 547 FILE *f;
163 548
164 clear_config (); 549 conf.clear ();
165 550
166 asprintf (&fname, "%s/vped.conf", confbase); 551 asprintf (&fname, "%s/gvpe.conf", confbase);
167 f = fopen (fname, "r"); 552 f = fopen (fname, "r");
168 553
169 if (f) 554 if (f)
170 { 555 {
171 char line[16384]; 556 char line[16384];
172 int lineno = 0; 557 int lineno = 0;
173 char *var, *val; 558 node = &conf.default_node;
174 conf_node *node = &default_node;
175 559
176 while (fgets (line, sizeof (line), f)) 560 while (fgets (line, sizeof (line), f))
177 { 561 {
178 lineno++; 562 lineno++;
179 563
180 { 564 const char *warn = parse_line (line);
181 char *end = line + strlen (line);
182 565
183 while (*end < ' ' && end >= line) 566 if (warn)
184 end--; 567 slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
185
186 *++end = 0;
187 }
188
189 char *tok = line;
190
191retry:
192 var = strtok (tok, "\t =");
193 tok = 0;
194
195 if (!var || !var[0])
196 continue; /* no tokens on this line */
197
198 if (var[0] == '#')
199 continue; /* comment: ignore */
200
201 val = strtok (NULL, "\t\n\r =");
202
203 if (!val || val[0] == '#')
204 {
205 slog (L_WARN,
206 _("no value for variable `%s', at '%s' line %d"),
207 var, fname, lineno);
208 break;
209 }
210
211 if (!strcmp (var, "on"))
212 {
213 if (!::thisnode
214 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
215 || !strcmp (val, ::thisnode))
216 goto retry;
217
218 continue;
219 }
220
221 // truly global
222 if (!strcmp (var, "loglevel"))
223 {
224 loglevel l = string_to_loglevel (val);
225
226 if (l != L_NONE)
227 llevel = l;
228 else
229 slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
230 }
231 else if (!strcmp (var, "ip-proto"))
232 ip_proto = atoi (val);
233#if ENABLE_ICMP
234 //TODO: error message
235 else if (!strcmp (var, "icmp-type"))
236 icmp_type = atoi (val);
237#endif
238
239 // per config
240 else if (!strcmp (var, "node"))
241 {
242 default_node.id++;
243
244 node = new conf_node (default_node);
245
246 nodes.push_back (node);
247
248 node->nodename = strdup (val);
249
250 {
251 char *fname;
252 FILE *f;
253
254 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
255
256 f = fopen (fname, "r");
257 if (f)
258 {
259 node->rsa_key = RSA_new ();
260
261 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
262 {
263 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
264 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
265 exit (1);
266 }
267
268 RSA_blinding_on (node->rsa_key, 0);
269
270 fclose (f);
271 }
272 else
273 {
274 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
275
276 if (need_keys)
277 exit (1);
278 }
279
280 free (fname);
281 }
282
283 if (!::thisnode || !strcmp (node->nodename, ::thisnode))
284 thisnode = node;
285 }
286 else if (!strcmp (var, "private-key"))
287 prikeyfile = strdup (val);
288 else if (!strcmp (var, "ifpersist"))
289 {
290 parse_bool (ifpersist, "ifpersist", true, false);
291 }
292 else if (!strcmp (var, "ifname"))
293 ifname = strdup (val);
294 else if (!strcmp (var, "rekey"))
295 rekey = atoi (val);
296 else if (!strcmp (var, "keepalive"))
297 keepalive = atoi (val);
298 else if (!strcmp (var, "mtu"))
299 mtu = atoi (val);
300 else if (!strcmp (var, "if-up"))
301 script_if_up = strdup (val);
302 else if (!strcmp (var, "node-up"))
303 script_node_up = strdup (val);
304 else if (!strcmp (var, "node-down"))
305 script_node_down = strdup (val);
306#if ENABLE_HTTP_PROXY
307 else if (!strcmp (var, "http-proxy-host"))
308 proxy_host = strdup (val);
309 else if (!strcmp (var, "http-proxy-port"))
310 proxy_port = atoi (val);
311 else if (!strcmp (var, "http-proxy-auth"))
312 proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val));
313#endif
314
315 /* node-specific, non-defaultable */
316 else if (node != &default_node && !strcmp (var, "hostname"))
317 {
318 free (node->hostname);
319 node->hostname = strdup (val);
320 }
321
322 /* node-specific, defaultable */
323 else if (!strcmp (var, "udp-port"))
324 node->udp_port = atoi (val);
325 else if (!strcmp (var, "tcp-port"))
326 node->tcp_port = atoi (val);
327 else if (!strcmp (var, "router-priority"))
328 node->routerprio = atoi (val);
329 else if (!strcmp (var, "connect"))
330 {
331 if (!strcmp (val, "ondemand"))
332 node->connectmode = conf_node::C_ONDEMAND;
333 else if (!strcmp (val, "never"))
334 node->connectmode = conf_node::C_NEVER;
335 else if (!strcmp (val, "always"))
336 node->connectmode = conf_node::C_ALWAYS;
337 else if (!strcmp (val, "disabled"))
338 node->connectmode = conf_node::C_DISABLED;
339 else
340 slog (L_WARN,
341 _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
342 var, fname, lineno);
343 }
344 else if (!strcmp (var, "inherit-tos"))
345 {
346 parse_bool (node->inherit_tos, "inherit-tos", true, false);
347 }
348 else if (!strcmp (var, "compress"))
349 {
350 parse_bool (node->compress, "compress", true, false);
351 }
352 // all these bool options really really cost a lot of executable size!
353 else if (!strcmp (var, "enable-tcp"))
354 {
355#if ENABLE_TCP
356 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
357#endif
358 }
359 else if (!strcmp (var, "enable-icmp"))
360 {
361#if ENABLE_ICMP
362 u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v;
363#endif
364 }
365 else if (!strcmp (var, "enable-udp"))
366 {
367 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
368 }
369 else if (!strcmp (var, "enable-rawip"))
370 {
371 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
372 }
373
374 // unknown or misplaced
375 else
376 slog (L_WARN,
377 _("unknown or misplaced variable `%s', at '%s' line %d"),
378 var, fname, lineno);
379 } 568 }
380 569
381 fclose (f); 570 fclose (f);
571
572 parse_argv ();
382 } 573 }
383 else 574 else
384 { 575 {
385 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); 576 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
386 exit (1); 577 exit (EXIT_FAILURE);
387 } 578 }
388 579
389 free (fname); 580 free (fname);
390 581
391 fname = config_filename (prikeyfile, "hostkey"); 582 fname = conf.config_filename (conf.prikeyfile, "hostkey");
392 583
393 f = fopen (fname, "r"); 584 f = fopen (fname, "r");
394 if (f) 585 if (f)
395 { 586 {
396 rsa_key = RSA_new (); 587 conf.rsa_key = RSA_new ();
397 588
398 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL)) 589 if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
399 { 590 {
400 ERR_load_RSA_strings (); ERR_load_PEM_strings (); 591 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
401 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); 592 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
402 exit (1); 593 exit (EXIT_FAILURE);
403 } 594 }
404 595
405 RSA_blinding_on (rsa_key, 0); 596 require (RSA_blinding_on (conf.rsa_key, 0));
406 597
407 fclose (f); 598 fclose (f);
408 } 599 }
409 else 600 else
410 { 601 {
411 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); 602 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
412 603
413 if (need_keys) 604 if (need_keys)
414 exit (1); 605 exit (EXIT_FAILURE);
606 }
607
608 if (need_keys && ::thisnode
609 && conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
610 if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
611 || BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
612 {
613 slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
614 exit (EXIT_FAILURE);
415 } 615 }
416 616
417 free (fname); 617 free (fname);
618
619 for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
620 (*i)->finalise ();
418} 621}
419 622
420char *configuration::config_filename (const char *name, const char *dflt) 623char *configuration::config_filename (const char *name, const char *dflt)
421{ 624{
422 char *fname; 625 char *fname;
… …
456 printf ("\n"); 659 printf ("\n");
457} 660}
458 661
459configuration::configuration () 662configuration::configuration ()
460{ 663{
664 asprintf (&confbase, "%s/gvpe", CONFDIR);
665
461 init (); 666 init ();
462} 667}
463 668
464configuration::~configuration () 669configuration::~configuration ()
465{ 670{

Diff Legend

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