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> |
… | |
… | |
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 | #include <openssl/bn.h> |
40 | #include <openssl/bn.h> |
39 | |
|
|
40 | #include "gettext.h" |
|
|
41 | |
41 | |
42 | #include "conf.h" |
42 | #include "conf.h" |
43 | #include "slog.h" |
43 | #include "slog.h" |
44 | #include "util.h" |
44 | #include "util.h" |
45 | |
45 | |
… | |
… | |
88 | ); |
88 | ); |
89 | } |
89 | } |
90 | |
90 | |
91 | conf_node::~conf_node () |
91 | conf_node::~conf_node () |
92 | { |
92 | { |
|
|
93 | #if 0 |
|
|
94 | // does not work, because string pointers etc. are shared |
|
|
95 | // is not called, however |
93 | if (rsa_key) |
96 | if (rsa_key) |
94 | RSA_free (rsa_key); |
97 | RSA_free (rsa_key); |
95 | |
98 | |
96 | free (nodename); |
99 | free (nodename); |
97 | 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 |
98 | } |
107 | } |
99 | |
108 | |
100 | void configuration::init () |
109 | void configuration::init () |
101 | { |
110 | { |
102 | memset (this, 0, sizeof (*this)); |
111 | memset (this, 0, sizeof (*this)); |
… | |
… | |
112 | |
121 | |
113 | default_node.udp_port = DEFAULT_UDPPORT; |
122 | default_node.udp_port = DEFAULT_UDPPORT; |
114 | default_node.tcp_port = DEFAULT_UDPPORT; // ehrm |
123 | default_node.tcp_port = DEFAULT_UDPPORT; // ehrm |
115 | default_node.connectmode = conf_node::C_ALWAYS; |
124 | default_node.connectmode = conf_node::C_ALWAYS; |
116 | default_node.compress = true; |
125 | default_node.compress = true; |
117 | 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 (""); |
118 | |
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 | |
119 | conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid"); |
141 | conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
120 | } |
142 | } |
121 | |
143 | |
122 | void configuration::cleanup() |
144 | void configuration::cleanup() |
123 | { |
145 | { |
124 | if (rsa_key) |
146 | if (rsa_key) |
125 | RSA_free (rsa_key); |
147 | RSA_free (rsa_key); |
126 | |
148 | |
127 | rsa_key = 0; |
149 | rsa_key = 0; |
128 | |
150 | |
129 | free (pidfilename); pidfilename = 0; |
151 | free (pidfilename); pidfilename = 0; |
130 | free (ifname); ifname = 0; |
152 | free (ifname); ifname = 0; |
131 | #if ENABLE_HTTP_PROXY |
153 | #if ENABLE_HTTP_PROXY |
132 | free (proxy_host); proxy_host = 0; |
154 | free (proxy_host); proxy_host = 0; |
133 | 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; |
134 | #endif |
159 | #endif |
135 | } |
160 | } |
136 | |
161 | |
137 | void |
162 | void |
138 | configuration::clear_config () |
163 | configuration::clear () |
139 | { |
164 | { |
140 | 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) |
141 | delete *i; |
166 | delete *i; |
142 | |
167 | |
143 | nodes.clear (); |
168 | nodes.clear (); |
144 | |
169 | |
145 | cleanup (); |
170 | cleanup (); |
146 | init (); |
171 | init (); |
147 | } |
172 | } |
148 | |
173 | |
149 | #define parse_bool(target,name,trueval,falseval) \ |
174 | #define parse_bool(target,name,trueval,falseval) do { \ |
150 | if (!strcmp (val, "yes")) target = trueval; \ |
175 | if (!strcmp (val, "yes")) target = trueval; \ |
151 | else if (!strcmp (val, "no")) target = falseval; \ |
176 | else if (!strcmp (val, "no")) target = falseval; \ |
152 | else if (!strcmp (val, "true")) target = trueval; \ |
177 | else if (!strcmp (val, "true")) target = trueval; \ |
153 | else if (!strcmp (val, "false")) target = falseval; \ |
178 | else if (!strcmp (val, "false")) target = falseval; \ |
154 | else if (!strcmp (val, "on")) target = trueval; \ |
179 | else if (!strcmp (val, "on")) target = trueval; \ |
155 | else if (!strcmp (val, "off")) target = falseval; \ |
180 | else if (!strcmp (val, "off")) target = falseval; \ |
156 | else \ |
181 | else \ |
157 | slog (L_WARN, \ |
182 | return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed. (ignored)"); \ |
158 | _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ |
183 | } while (0) |
159 | name, var, fname, lineno); |
|
|
160 | |
184 | |
161 | void configuration::read_config (bool need_keys) |
185 | const char * |
|
|
186 | configuration_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 | |
|
|
445 | void 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 | |
|
|
479 | configuration_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) |
162 | { |
484 | { |
163 | char *fname; |
485 | char *fname; |
164 | FILE *f; |
486 | FILE *f; |
165 | |
487 | |
166 | clear_config (); |
488 | conf.clear (); |
167 | |
489 | |
168 | asprintf (&fname, "%s/vped.conf", confbase); |
490 | asprintf (&fname, "%s/gvpe.conf", confbase); |
169 | f = fopen (fname, "r"); |
491 | f = fopen (fname, "r"); |
170 | |
492 | |
171 | if (f) |
493 | if (f) |
172 | { |
494 | { |
173 | char line[16384]; |
495 | char line[16384]; |
174 | int lineno = 0; |
496 | int lineno = 0; |
175 | char *var, *val; |
497 | node = &conf.default_node; |
176 | conf_node *node = &default_node; |
|
|
177 | |
498 | |
178 | while (fgets (line, sizeof (line), f)) |
499 | while (fgets (line, sizeof (line), f)) |
179 | { |
500 | { |
180 | lineno++; |
501 | lineno++; |
181 | |
502 | |
182 | { |
503 | const char *warn = parse_line (line); |
183 | char *end = line + strlen (line); |
|
|
184 | |
504 | |
185 | while (*end < ' ' && end >= line) |
505 | if (warn) |
186 | end--; |
506 | slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno); |
187 | |
|
|
188 | *++end = 0; |
|
|
189 | } |
|
|
190 | |
|
|
191 | char *tok = line; |
|
|
192 | |
|
|
193 | retry: |
|
|
194 | var = strtok (tok, "\t ="); |
|
|
195 | tok = 0; |
|
|
196 | |
|
|
197 | if (!var || !var[0]) |
|
|
198 | continue; /* no tokens on this line */ |
|
|
199 | |
|
|
200 | if (var[0] == '#') |
|
|
201 | continue; /* comment: ignore */ |
|
|
202 | |
|
|
203 | val = strtok (NULL, "\t\n\r ="); |
|
|
204 | |
|
|
205 | if (!val || val[0] == '#') |
|
|
206 | { |
|
|
207 | slog (L_WARN, |
|
|
208 | _("no value for variable `%s', at '%s' line %d"), |
|
|
209 | var, fname, lineno); |
|
|
210 | break; |
|
|
211 | } |
|
|
212 | |
|
|
213 | if (!strcmp (var, "on")) |
|
|
214 | { |
|
|
215 | if (!::thisnode |
|
|
216 | || (val[0] == '!' && strcmp (val + 1, ::thisnode)) |
|
|
217 | || !strcmp (val, ::thisnode)) |
|
|
218 | goto retry; |
|
|
219 | |
|
|
220 | continue; |
|
|
221 | } |
|
|
222 | |
|
|
223 | // truly global |
|
|
224 | if (!strcmp (var, "loglevel")) |
|
|
225 | { |
|
|
226 | loglevel l = string_to_loglevel (val); |
|
|
227 | |
|
|
228 | if (l != L_NONE) |
|
|
229 | llevel = l; |
|
|
230 | else |
|
|
231 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
|
|
232 | } |
|
|
233 | else if (!strcmp (var, "ip-proto")) |
|
|
234 | ip_proto = atoi (val); |
|
|
235 | else if (!strcmp (var, "icmp-type")) |
|
|
236 | { |
|
|
237 | #if ENABLE_ICMP |
|
|
238 | icmp_type = atoi (val); |
|
|
239 | #endif |
|
|
240 | } |
|
|
241 | |
|
|
242 | // per config |
|
|
243 | else if (!strcmp (var, "node")) |
|
|
244 | { |
|
|
245 | default_node.id++; |
|
|
246 | |
|
|
247 | node = new conf_node (default_node); |
|
|
248 | |
|
|
249 | nodes.push_back (node); |
|
|
250 | |
|
|
251 | node->nodename = strdup (val); |
|
|
252 | |
|
|
253 | { |
|
|
254 | char *fname; |
|
|
255 | FILE *f; |
|
|
256 | |
|
|
257 | asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
|
|
258 | |
|
|
259 | f = fopen (fname, "r"); |
|
|
260 | if (f) |
|
|
261 | { |
|
|
262 | node->rsa_key = RSA_new (); |
|
|
263 | |
|
|
264 | if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL)) |
|
|
265 | { |
|
|
266 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
|
|
267 | slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
|
|
268 | exit (EXIT_FAILURE); |
|
|
269 | } |
|
|
270 | |
|
|
271 | require (RSA_blinding_on (node->rsa_key, 0)); |
|
|
272 | |
|
|
273 | fclose (f); |
|
|
274 | } |
|
|
275 | else |
|
|
276 | { |
|
|
277 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
278 | |
|
|
279 | if (need_keys) |
|
|
280 | exit (EXIT_FAILURE); |
|
|
281 | } |
|
|
282 | |
|
|
283 | free (fname); |
|
|
284 | } |
|
|
285 | |
|
|
286 | if (::thisnode && !strcmp (node->nodename, ::thisnode)) |
|
|
287 | thisnode = node; |
|
|
288 | } |
|
|
289 | else if (!strcmp (var, "private-key")) |
|
|
290 | free (prikeyfile), prikeyfile = strdup (val); |
|
|
291 | else if (!strcmp (var, "ifpersist")) |
|
|
292 | { |
|
|
293 | parse_bool (ifpersist, "ifpersist", true, false); |
|
|
294 | } |
|
|
295 | else if (!strcmp (var, "ifname")) |
|
|
296 | free (ifname), ifname = strdup (val); |
|
|
297 | else if (!strcmp (var, "rekey")) |
|
|
298 | rekey = atoi (val); |
|
|
299 | else if (!strcmp (var, "keepalive")) |
|
|
300 | keepalive = atoi (val); |
|
|
301 | else if (!strcmp (var, "mtu")) |
|
|
302 | mtu = atoi (val); |
|
|
303 | else if (!strcmp (var, "if-up")) |
|
|
304 | free (script_if_up), script_if_up = strdup (val); |
|
|
305 | else if (!strcmp (var, "node-up")) |
|
|
306 | free (script_node_up), script_node_up = strdup (val); |
|
|
307 | else if (!strcmp (var, "node-down")) |
|
|
308 | free (script_node_down), script_node_down = strdup (val); |
|
|
309 | else if (!strcmp (var, "pid-file")) |
|
|
310 | free (pidfilename), pidfilename = strdup (val); |
|
|
311 | else if (!strcmp (var, "http-proxy-host")) |
|
|
312 | { |
|
|
313 | #if ENABLE_HTTP_PROXY |
|
|
314 | free (proxy_host), proxy_host = strdup (val); |
|
|
315 | #endif |
|
|
316 | } |
|
|
317 | else if (!strcmp (var, "http-proxy-port")) |
|
|
318 | { |
|
|
319 | #if ENABLE_HTTP_PROXY |
|
|
320 | proxy_port = atoi (val); |
|
|
321 | #endif |
|
|
322 | } |
|
|
323 | else if (!strcmp (var, "http-proxy-auth")) |
|
|
324 | { |
|
|
325 | #if ENABLE_HTTP_PROXY |
|
|
326 | proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val)); |
|
|
327 | #endif |
|
|
328 | } |
|
|
329 | |
|
|
330 | /* node-specific, non-defaultable */ |
|
|
331 | else if (node != &default_node && !strcmp (var, "hostname")) |
|
|
332 | free (node->hostname), node->hostname = strdup (val); |
|
|
333 | |
|
|
334 | /* node-specific, defaultable */ |
|
|
335 | else if (!strcmp (var, "udp-port")) |
|
|
336 | node->udp_port = atoi (val); |
|
|
337 | else if (!strcmp (var, "tcp-port")) |
|
|
338 | node->tcp_port = atoi (val); |
|
|
339 | else if (!strcmp (var, "dns-port")) |
|
|
340 | node->dns_port = atoi (val); |
|
|
341 | else if (!strcmp (var, "router-priority")) |
|
|
342 | node->routerprio = atoi (val); |
|
|
343 | else if (!strcmp (var, "connect")) |
|
|
344 | { |
|
|
345 | if (!strcmp (val, "ondemand")) |
|
|
346 | node->connectmode = conf_node::C_ONDEMAND; |
|
|
347 | else if (!strcmp (val, "never")) |
|
|
348 | node->connectmode = conf_node::C_NEVER; |
|
|
349 | else if (!strcmp (val, "always")) |
|
|
350 | node->connectmode = conf_node::C_ALWAYS; |
|
|
351 | else if (!strcmp (val, "disabled")) |
|
|
352 | node->connectmode = conf_node::C_DISABLED; |
|
|
353 | else |
|
|
354 | slog (L_WARN, |
|
|
355 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"), |
|
|
356 | var, fname, lineno); |
|
|
357 | } |
|
|
358 | else if (!strcmp (var, "inherit-tos")) |
|
|
359 | { |
|
|
360 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
|
|
361 | } |
|
|
362 | else if (!strcmp (var, "compress")) |
|
|
363 | { |
|
|
364 | parse_bool (node->compress, "compress", true, false); |
|
|
365 | } |
|
|
366 | // all these bool options really really cost a lot of executable size! |
|
|
367 | else if (!strcmp (var, "enable-tcp")) |
|
|
368 | { |
|
|
369 | #if ENABLE_TCP |
|
|
370 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
|
|
371 | #endif |
|
|
372 | } |
|
|
373 | else if (!strcmp (var, "enable-icmp")) |
|
|
374 | { |
|
|
375 | #if ENABLE_ICMP |
|
|
376 | u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v; |
|
|
377 | #endif |
|
|
378 | } |
|
|
379 | else if (!strcmp (var, "enable-dns")) |
|
|
380 | { |
|
|
381 | #if ENABLE_DNS |
|
|
382 | u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) | v; |
|
|
383 | #endif |
|
|
384 | } |
|
|
385 | else if (!strcmp (var, "enable-udp")) |
|
|
386 | { |
|
|
387 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
|
|
388 | } |
|
|
389 | else if (!strcmp (var, "enable-rawip")) |
|
|
390 | {; |
|
|
391 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
|
|
392 | } |
|
|
393 | |
|
|
394 | // unknown or misplaced |
|
|
395 | else |
|
|
396 | slog (L_WARN, |
|
|
397 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
|
|
398 | var, fname, lineno); |
|
|
399 | } |
507 | } |
400 | |
508 | |
401 | fclose (f); |
509 | fclose (f); |
|
|
510 | |
|
|
511 | parse_argv (); |
402 | } |
512 | } |
403 | else |
513 | else |
404 | { |
514 | { |
405 | 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)); |
406 | exit (EXIT_FAILURE); |
516 | exit (EXIT_FAILURE); |
407 | } |
517 | } |
408 | |
518 | |
409 | free (fname); |
519 | free (fname); |
410 | |
520 | |
411 | fname = config_filename (prikeyfile, "hostkey"); |
521 | fname = conf.config_filename (conf.prikeyfile, "hostkey"); |
412 | |
522 | |
413 | f = fopen (fname, "r"); |
523 | f = fopen (fname, "r"); |
414 | if (f) |
524 | if (f) |
415 | { |
525 | { |
416 | rsa_key = RSA_new (); |
526 | conf.rsa_key = RSA_new (); |
417 | |
527 | |
418 | if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL)) |
528 | if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL)) |
419 | { |
529 | { |
420 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
530 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
421 | 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)); |
422 | exit (EXIT_FAILURE); |
532 | exit (EXIT_FAILURE); |
423 | } |
533 | } |
424 | |
534 | |
425 | require (RSA_blinding_on (rsa_key, 0)); |
535 | require (RSA_blinding_on (conf.rsa_key, 0)); |
426 | |
536 | |
427 | fclose (f); |
537 | fclose (f); |
428 | } |
538 | } |
429 | else |
539 | else |
430 | { |
540 | { |
… | |
… | |
433 | if (need_keys) |
543 | if (need_keys) |
434 | exit (EXIT_FAILURE); |
544 | exit (EXIT_FAILURE); |
435 | } |
545 | } |
436 | |
546 | |
437 | if (need_keys && ::thisnode |
547 | if (need_keys && ::thisnode |
438 | && rsa_key && thisnode && thisnode->rsa_key) |
548 | && conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key) |
439 | if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0 |
549 | if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0 |
440 | || BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0) |
550 | || BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0) |
441 | { |
551 | { |
442 | slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
552 | slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
443 | exit (EXIT_FAILURE); |
553 | exit (EXIT_FAILURE); |
444 | } |
554 | } |
445 | |
555 | |
… | |
… | |
485 | printf ("\n"); |
595 | printf ("\n"); |
486 | } |
596 | } |
487 | |
597 | |
488 | configuration::configuration () |
598 | configuration::configuration () |
489 | { |
599 | { |
490 | asprintf (&confbase, "%s/vpe", CONFDIR); |
600 | asprintf (&confbase, "%s/gvpe", CONFDIR); |
491 | |
601 | |
492 | init (); |
602 | init (); |
493 | } |
603 | } |
494 | |
604 | |
495 | configuration::~configuration () |
605 | configuration::~configuration () |