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Comparing gvpe/src/conf.C (file contents):
Revision 1.12 by pcg, Mon Apr 7 01:12:56 2003 UTC vs.
Revision 1.46 by pcg, Sun Aug 10 01:34:36 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>
… …
31#include <netdb.h> 39#include <netdb.h>
32#include <sys/stat.h> 40#include <sys/stat.h>
33#include <sys/types.h> 41#include <sys/types.h>
34#include <unistd.h> 42#include <unistd.h>
35 43
36#include <netinet/in.h> 44#include "netcompat.h"
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;
65 if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59 if (protset & PROT_UDPv4) return PROT_UDPv4; 66 if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60 if (protset & PROT_TCPv4) return PROT_TCPv4; 67 if (protset & PROT_TCPv4 ) return PROT_TCPv4;
68 if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61 69
62 return 0; 70 return 0;
63} 71}
64 72
65const char *strprotocol (u8 protocol) 73const char *strprotocol (u8 protocol)
66{ 74{
67 if (protocol & PROT_IPv4 ) return "rawip"; 75 if (protocol & PROT_IPv4 ) return "rawip";
76 if (protocol & PROT_ICMPv4) return "icmp";
68 if (protocol & PROT_UDPv4) return "udp"; 77 if (protocol & PROT_UDPv4 ) return "udp";
69 if (protocol & PROT_TCPv4) return "tcp"; 78 if (protocol & PROT_TCPv4 ) return "tcp";
79 if (protocol & PROT_DNSv4 ) return "dns";
70 80
71 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;
72} 106}
73 107
74void 108void
75conf_node::print () 109conf_node::print ()
76{ 110{
77 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",
78 id, 112 id,
79 id >> 8, id & 0xff, 113 id >> 8, id & 0xff,
80 compress ? 'Y' : 'N', 114 compress ? 'Y' : 'N',
81 connectmode == C_ONDEMAND ? "ondemand" : 115 connectmode == C_ONDEMAND ? "ondemand"
82 connectmode == C_NEVER ? "never" : 116 : connectmode == C_NEVER ? "never"
83 connectmode == C_ALWAYS ? "always" : "", 117 : connectmode == C_ALWAYS ? "always"
118 : connectmode == C_DISABLED ? "disabled"
119 : "",
84 nodename, 120 nodename,
85 hostname ? hostname : "", 121 hostname ? hostname : "",
86 hostname ? ":" : "", 122 hostname ? ":" : "",
87 hostname ? udp_port : 0 123 hostname ? udp_port : 0
88 ); 124 );
89} 125}
90 126
91conf_node::~conf_node () 127conf_node::~conf_node ()
92{ 128{
129#if 0
130 // does not work, because string pointers etc. are shared
131 // is not called, however
93 if (rsa_key) 132 if (rsa_key)
94 RSA_free (rsa_key); 133 RSA_free (rsa_key);
95 134
96 free (nodename); 135 free (nodename);
97 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
98} 143}
99 144
100void configuration::init () 145void configuration::init ()
101{ 146{
102 memset (this, 0, sizeof (*this)); 147 memset (this, 0, sizeof (*this));
103 148
149 mtu = DEFAULT_MTU;
104 rekey = DEFAULT_REKEY; 150 rekey = DEFAULT_REKEY;
105 keepalive = DEFAULT_KEEPALIVE; 151 keepalive = DEFAULT_KEEPALIVE;
106 llevel = L_INFO; 152 llevel = L_INFO;
107 ip_proto = IPPROTO_GRE; 153 ip_proto = IPPROTO_GRE;
154#if ENABLE_ICMP
155 icmp_type = ICMP_ECHOREPLY;
156#endif
108 157
109 default_node.udp_port = DEFAULT_UDPPORT; 158 default_node.udp_port = DEFAULT_UDPPORT;
110 default_node.tcp_port = DEFAULT_UDPPORT; 159 default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
111 default_node.connectmode = conf_node::C_ALWAYS; 160 default_node.connectmode = conf_node::C_ALWAYS;
112 default_node.compress = true; 161 default_node.compress = true;
113 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");
114} 180}
115 181
116void configuration::cleanup() 182void configuration::cleanup()
117{ 183{
118 if (rsa_key) 184 if (rsa_key)
119 RSA_free (rsa_key); 185 RSA_free (rsa_key);
120 186
121 rsa_key = 0; 187 rsa_key = 0;
122 188
189 free (pidfilename); pidfilename = 0;
123 free (ifname); ifname = 0; 190 free (ifname); ifname = 0;
124#if ENABLE_HTTP_PROXY 191#if ENABLE_HTTP_PROXY
125 free (proxy_host); proxy_host = 0; 192 free (proxy_host); proxy_host = 0;
126 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;
127#endif 197#endif
128} 198}
129 199
130void 200void
131configuration::clear_config () 201configuration::clear ()
132{ 202{
133 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)
134 delete *i; 204 delete *i;
135 205
136 nodes.clear (); 206 nodes.clear ();
137 207
138 cleanup (); 208 cleanup ();
139 init (); 209 init ();
140} 210}
141 211
142#define parse_bool(target,name,trueval,falseval) \ 212#define parse_bool(target,name,trueval,falseval) do { \
143 if (!strcmp (val, "yes")) target = trueval; \ 213 if (!strcmp (val, "yes")) target = trueval; \
144 else if (!strcmp (val, "no")) target = falseval; \ 214 else if (!strcmp (val, "no")) target = falseval; \
145 else if (!strcmp (val, "true")) target = trueval; \ 215 else if (!strcmp (val, "true")) target = trueval; \
146 else if (!strcmp (val, "false")) target = falseval; \ 216 else if (!strcmp (val, "false")) target = falseval; \
147 else if (!strcmp (val, "on")) target = trueval; \ 217 else if (!strcmp (val, "on")) target = trueval; \
148 else if (!strcmp (val, "off")) target = falseval; \ 218 else if (!strcmp (val, "off")) target = falseval; \
149 else \ 219 else \
150 slog (L_WARN, \ 220 return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed. (ignored)"); \
151 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ 221} while (0)
152 name, var, fname, lineno);
153 222
154void 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 && (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)
155{ 545{
156 char *fname; 546 char *fname;
157 FILE *f; 547 FILE *f;
158 548
159 clear_config (); 549 conf.clear ();
160 550
161 asprintf (&fname, "%s/vped.conf", confbase); 551 asprintf (&fname, "%s/gvpe.conf", confbase);
162 f = fopen (fname, "r"); 552 f = fopen (fname, "r");
163 553
164 if (f) 554 if (f)
165 { 555 {
166 char line[16384]; 556 char line[16384];
167 int lineno = 0; 557 int lineno = 0;
168 char *var, *val; 558 node = &conf.default_node;
169 conf_node *node = &default_node;
170 559
171 while (fgets (line, sizeof (line), f)) 560 while (fgets (line, sizeof (line), f))
172 { 561 {
173 lineno++; 562 lineno++;
174 563
175 { 564 const char *warn = parse_line (line);
176 char *end = line + strlen (line);
177 565
178 while (*end < ' ' && end >= line) 566 if (warn)
179 end--; 567 slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
180
181 *++end = 0;
182 }
183
184 char *tok = line;
185
186retry:
187 var = strtok (tok, "\t =");
188 tok = 0;
189
190 if (!var || !var[0])
191 continue; /* no tokens on this line */
192
193 if (var[0] == '#')
194 continue; /* comment: ignore */
195
196 val = strtok (NULL, "\t\n\r =");
197
198 if (!val || val[0] == '#')
199 {
200 slog (L_WARN,
201 _("no value for variable `%s', at '%s' line %d"),
202 var, fname, lineno);
203 break;
204 }
205
206 if (!strcmp (var, "on"))
207 {
208 if (!::thisnode
209 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
210 || !strcmp (val, ::thisnode))
211 goto retry;
212
213 continue;
214 }
215
216 // truly global
217 if (!strcmp (var, "loglevel"))
218 {
219 loglevel l = string_to_loglevel (val);
220
221 if (l != L_NONE)
222 llevel = l;
223 else
224 slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
225 }
226 else if (!strcmp (var, "ip-proto"))
227 ip_proto = atoi (val);
228
229 // per config
230 else if (!strcmp (var, "node"))
231 {
232 default_node.id++;
233
234 node = new conf_node (default_node);
235
236 nodes.push_back (node);
237
238 node->nodename = strdup (val);
239
240 {
241 char *fname;
242 FILE *f;
243
244 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
245
246 f = fopen (fname, "r");
247 if (f)
248 {
249 node->rsa_key = RSA_new ();
250
251 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
252 {
253 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
254 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
255 exit (1);
256 }
257
258 RSA_blinding_on (node->rsa_key, 0);
259
260 fclose (f);
261 }
262 else
263 {
264 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
265
266 if (need_keys)
267 exit (1);
268 }
269
270 free (fname);
271 }
272
273 if (!::thisnode || !strcmp (node->nodename, ::thisnode))
274 thisnode = node;
275 }
276 else if (!strcmp (var, "private-key"))
277 prikeyfile = strdup (val);
278 else if (!strcmp (var, "ifpersist"))
279 {
280 parse_bool (ifpersist, "ifpersist", true, false);
281 }
282 else if (!strcmp (var, "ifname"))
283 ifname = strdup (val);
284 else if (!strcmp (var, "rekey"))
285 rekey = atoi (val);
286 else if (!strcmp (var, "keepalive"))
287 keepalive = atoi (val);
288 else if (!strcmp (var, "mtu"))
289 mtu = atoi (val);
290 else if (!strcmp (var, "if-up"))
291 script_if_up = strdup (val);
292 else if (!strcmp (var, "node-up"))
293 script_node_up = strdup (val);
294 else if (!strcmp (var, "node-down"))
295 script_node_down = strdup (val);
296#if ENABLE_HTTP_PROXY
297 else if (!strcmp (var, "http-proxy-host"))
298 proxy_host = strdup (val);
299 else if (!strcmp (var, "http-proxy-port"))
300 proxy_port = atoi (val);
301 else if (!strcmp (var, "http-proxy-auth"))
302 proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val));
303#endif
304
305 /* node-specific, non-defaultable */
306 else if (node != &default_node && !strcmp (var, "hostname"))
307 {
308 free (node->hostname);
309 node->hostname = strdup (val);
310 }
311
312 /* node-specific, defaultable */
313 else if (!strcmp (var, "udp-port"))
314 node->udp_port = atoi (val);
315 else if (!strcmp (var, "tcp-port"))
316 node->tcp_port = atoi (val);
317 else if (!strcmp (var, "router-priority"))
318 node->routerprio = atoi (val);
319 else if (!strcmp (var, "connect"))
320 {
321 if (!strcmp (val, "ondemand"))
322 node->connectmode = conf_node::C_ONDEMAND;
323 else if (!strcmp (val, "never"))
324 node->connectmode = conf_node::C_NEVER;
325 else if (!strcmp (val, "always"))
326 node->connectmode = conf_node::C_ALWAYS;
327 else if (!strcmp (val, "disabled"))
328 node->connectmode = conf_node::C_DISABLED;
329 else
330 slog (L_WARN,
331 _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
332 var, fname, lineno);
333 }
334 else if (!strcmp (var, "inherit-tos"))
335 {
336 parse_bool (node->inherit_tos, "inherit-tos", true, false);
337 }
338 else if (!strcmp (var, "compress"))
339 {
340 parse_bool (node->compress, "compress", true, false);
341 }
342 // all these bool options really really cost a lot of executable size!
343 else if (!strcmp (var, "enable-tcp"))
344 {
345#if ENABLE_TCP
346 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
347#endif
348 }
349 else if (!strcmp (var, "enable-udp"))
350 {
351 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
352 }
353 else if (!strcmp (var, "enable-rawip"))
354 {
355 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
356 }
357
358 // unknown or misplaced
359 else
360 slog (L_WARN,
361 _("unknown or misplaced variable `%s', at '%s' line %d"),
362 var, fname, lineno);
363 } 568 }
364 569
365 fclose (f); 570 fclose (f);
571
572 parse_argv ();
366 } 573 }
367 else 574 else
368 { 575 {
369 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));
370 exit (1); 577 exit (EXIT_FAILURE);
371 } 578 }
372 579
373 free (fname); 580 free (fname);
374 581
375 fname = config_filename (prikeyfile, "hostkey"); 582 fname = conf.config_filename (conf.prikeyfile, "hostkey");
376 583
377 f = fopen (fname, "r"); 584 f = fopen (fname, "r");
378 if (f) 585 if (f)
379 { 586 {
380 rsa_key = RSA_new (); 587 conf.rsa_key = RSA_new ();
381 588
382 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL)) 589 if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
383 { 590 {
384 ERR_load_RSA_strings (); ERR_load_PEM_strings (); 591 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
385 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));
386 exit (1); 593 exit (EXIT_FAILURE);
387 } 594 }
388 595
389 RSA_blinding_on (rsa_key, 0); 596 require (RSA_blinding_on (conf.rsa_key, 0));
390 597
391 fclose (f); 598 fclose (f);
392 } 599 }
393 else 600 else
394 { 601 {
395 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));
396 603
397 if (need_keys) 604 if (need_keys)
398 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);
399 } 615 }
400 616
401 free (fname); 617 free (fname);
618
619 for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
620 (*i)->finalise ();
402} 621}
403 622
404char *configuration::config_filename (const char *name, const char *dflt) 623char *configuration::config_filename (const char *name, const char *dflt)
405{ 624{
406 char *fname; 625 char *fname;
… …
426 printf (_("MTU: %d\n"), mtu); 645 printf (_("MTU: %d\n"), mtu);
427 printf (_("rekeying interval: %d\n"), rekey); 646 printf (_("rekeying interval: %d\n"), rekey);
428 printf (_("keepalive interval: %d\n"), keepalive); 647 printf (_("keepalive interval: %d\n"), keepalive);
429 printf (_("interface: %s\n"), ifname); 648 printf (_("interface: %s\n"), ifname);
430 printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); 649 printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
431 printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1); 650 printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
432 printf ("\n"); 651 printf ("\n");
433 652
434 printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", 653 printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
435 _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); 654 _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
436 655
… …
440 printf ("\n"); 659 printf ("\n");
441} 660}
442 661
443configuration::configuration () 662configuration::configuration ()
444{ 663{
664 asprintf (&confbase, "%s/gvpe", CONFDIR);
665
445 init (); 666 init ();
446} 667}
447 668
448configuration::~configuration () 669configuration::~configuration ()
449{ 670{

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