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 | |
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5 | This file is part of GVPE. |
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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. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | */ |
20 | */ |
19 | |
21 | |
20 | #include "config.h" |
22 | #include "config.h" |
21 | |
23 | |
… | |
… | |
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 | |
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40 | #include "gettext.h" |
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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 | |
… | |
… | |
93 | if (rsa_key) |
93 | if (rsa_key) |
94 | RSA_free (rsa_key); |
94 | RSA_free (rsa_key); |
95 | |
95 | |
96 | free (nodename); |
96 | free (nodename); |
97 | free (hostname); |
97 | free (hostname); |
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98 | #if ENABLE_DNS |
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99 | free (domain); |
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100 | free (dns_hostname); |
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101 | #endif |
98 | } |
102 | } |
99 | |
103 | |
100 | void configuration::init () |
104 | void configuration::init () |
101 | { |
105 | { |
102 | asprintf (&confbase, "%s/vpe", CONFDIR); |
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103 | |
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104 | memset (this, 0, sizeof (*this)); |
106 | memset (this, 0, sizeof (*this)); |
105 | |
107 | |
106 | mtu = DEFAULT_MTU; |
108 | mtu = DEFAULT_MTU; |
107 | rekey = DEFAULT_REKEY; |
109 | rekey = DEFAULT_REKEY; |
108 | keepalive = DEFAULT_KEEPALIVE; |
110 | keepalive = DEFAULT_KEEPALIVE; |
… | |
… | |
114 | |
116 | |
115 | default_node.udp_port = DEFAULT_UDPPORT; |
117 | default_node.udp_port = DEFAULT_UDPPORT; |
116 | default_node.tcp_port = DEFAULT_UDPPORT; // ehrm |
118 | default_node.tcp_port = DEFAULT_UDPPORT; // ehrm |
117 | default_node.connectmode = conf_node::C_ALWAYS; |
119 | default_node.connectmode = conf_node::C_ALWAYS; |
118 | default_node.compress = true; |
120 | default_node.compress = true; |
119 | default_node.protocols = PROT_UDPv4; |
121 | default_node.protocols = 0; |
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122 | default_node.max_retry = DEFAULT_MAX_RETRY; |
120 | |
123 | |
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124 | #if ENABLE_DNS |
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125 | default_node.dns_port = 0; // default is 0 == client |
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126 | dns_forw_host = strdup ("127.0.0.1"); |
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127 | dns_forw_port = 53; |
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128 | #endif |
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129 | |
121 | conf.pidfilename = strdup (LOCALSTATEDIR "/run/vped.pid"); |
130 | conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
122 | } |
131 | } |
123 | |
132 | |
124 | void configuration::cleanup() |
133 | void configuration::cleanup() |
125 | { |
134 | { |
126 | if (rsa_key) |
135 | if (rsa_key) |
127 | RSA_free (rsa_key); |
136 | RSA_free (rsa_key); |
128 | |
137 | |
129 | rsa_key = 0; |
138 | rsa_key = 0; |
130 | |
139 | |
131 | free (pidfilename); pidfilename = 0; |
140 | free (pidfilename); pidfilename = 0; |
132 | free (ifname); ifname = 0; |
141 | free (ifname); ifname = 0; |
133 | #if ENABLE_HTTP_PROXY |
142 | #if ENABLE_HTTP_PROXY |
134 | free (proxy_host); proxy_host = 0; |
143 | free (proxy_host); proxy_host = 0; |
135 | free (proxy_auth); proxy_auth = 0; |
144 | free (proxy_auth); proxy_auth = 0; |
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145 | #endif |
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146 | #if ENABLE_DNS |
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147 | free (dns_forw_host); dns_forw_host = 0; |
136 | #endif |
148 | #endif |
137 | } |
149 | } |
138 | |
150 | |
139 | void |
151 | void |
140 | configuration::clear_config () |
152 | configuration::clear_config () |
… | |
… | |
146 | |
158 | |
147 | cleanup (); |
159 | cleanup (); |
148 | init (); |
160 | init (); |
149 | } |
161 | } |
150 | |
162 | |
151 | #define parse_bool(target,name,trueval,falseval) \ |
163 | #define parse_bool(target,name,trueval,falseval) do { \ |
152 | if (!strcmp (val, "yes")) target = trueval; \ |
164 | if (!strcmp (val, "yes")) target = trueval; \ |
153 | else if (!strcmp (val, "no")) target = falseval; \ |
165 | else if (!strcmp (val, "no")) target = falseval; \ |
154 | else if (!strcmp (val, "true")) target = trueval; \ |
166 | else if (!strcmp (val, "true")) target = trueval; \ |
155 | else if (!strcmp (val, "false")) target = falseval; \ |
167 | else if (!strcmp (val, "false")) target = falseval; \ |
156 | else if (!strcmp (val, "on")) target = trueval; \ |
168 | else if (!strcmp (val, "on")) target = trueval; \ |
157 | else if (!strcmp (val, "off")) target = falseval; \ |
169 | else if (!strcmp (val, "off")) target = falseval; \ |
158 | else \ |
170 | else \ |
159 | slog (L_WARN, \ |
171 | slog (L_WARN, \ |
160 | _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ |
172 | _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ |
161 | name, var, fname, lineno); |
173 | name, var, fname, lineno); \ |
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174 | } while (0) |
162 | |
175 | |
163 | void configuration::read_config (bool need_keys) |
176 | void configuration::read_config (bool need_keys) |
164 | { |
177 | { |
165 | char *fname; |
178 | char *fname; |
166 | FILE *f; |
179 | FILE *f; |
167 | |
180 | |
168 | clear_config (); |
181 | clear_config (); |
169 | |
182 | |
170 | asprintf (&fname, "%s/vped.conf", confbase); |
183 | asprintf (&fname, "%s/gvpe.conf", confbase); |
171 | f = fopen (fname, "r"); |
184 | f = fopen (fname, "r"); |
172 | |
185 | |
173 | if (f) |
186 | if (f) |
174 | { |
187 | { |
175 | char line[16384]; |
188 | char line[16384]; |
… | |
… | |
205 | val = strtok (NULL, "\t\n\r ="); |
218 | val = strtok (NULL, "\t\n\r ="); |
206 | |
219 | |
207 | if (!val || val[0] == '#') |
220 | if (!val || val[0] == '#') |
208 | { |
221 | { |
209 | slog (L_WARN, |
222 | slog (L_WARN, |
210 | _("no value for variable `%s', at '%s' line %d"), |
223 | _("no value for variable `%s', at '%s' line %d, skipping."), |
211 | var, fname, lineno); |
224 | var, fname, lineno); |
212 | break; |
225 | continue; |
213 | } |
226 | } |
214 | |
227 | |
215 | if (!strcmp (var, "on")) |
228 | if (!strcmp (var, "on")) |
216 | { |
229 | { |
217 | if (!::thisnode |
230 | if (!::thisnode |
… | |
… | |
289 | thisnode = node; |
302 | thisnode = node; |
290 | } |
303 | } |
291 | else if (!strcmp (var, "private-key")) |
304 | else if (!strcmp (var, "private-key")) |
292 | free (prikeyfile), prikeyfile = strdup (val); |
305 | free (prikeyfile), prikeyfile = strdup (val); |
293 | else if (!strcmp (var, "ifpersist")) |
306 | else if (!strcmp (var, "ifpersist")) |
294 | { |
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295 | parse_bool (ifpersist, "ifpersist", true, false); |
307 | parse_bool (ifpersist, "ifpersist", true, false); |
296 | } |
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297 | else if (!strcmp (var, "ifname")) |
308 | else if (!strcmp (var, "ifname")) |
298 | free (ifname), ifname = strdup (val); |
309 | free (ifname), ifname = strdup (val); |
299 | else if (!strcmp (var, "rekey")) |
310 | else if (!strcmp (var, "rekey")) |
300 | rekey = atoi (val); |
311 | rekey = atoi (val); |
301 | else if (!strcmp (var, "keepalive")) |
312 | else if (!strcmp (var, "keepalive")) |
… | |
… | |
308 | free (script_node_up), script_node_up = strdup (val); |
319 | free (script_node_up), script_node_up = strdup (val); |
309 | else if (!strcmp (var, "node-down")) |
320 | else if (!strcmp (var, "node-down")) |
310 | free (script_node_down), script_node_down = strdup (val); |
321 | free (script_node_down), script_node_down = strdup (val); |
311 | else if (!strcmp (var, "pid-file")) |
322 | else if (!strcmp (var, "pid-file")) |
312 | free (pidfilename), pidfilename = strdup (val); |
323 | free (pidfilename), pidfilename = strdup (val); |
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324 | else if (!strcmp (var, "dns-forw-host")) |
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325 | { |
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326 | #if ENABLE_DNS |
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327 | free (dns_forw_host), dns_forw_host = strdup (val); |
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328 | #endif |
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329 | } |
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330 | else if (!strcmp (var, "dns-forw-port")) |
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331 | { |
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332 | #if ENABLE_DNS |
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333 | dns_forw_port = atoi (val); |
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334 | #endif |
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335 | } |
313 | else if (!strcmp (var, "http-proxy-host")) |
336 | else if (!strcmp (var, "http-proxy-host")) |
314 | { |
337 | { |
315 | #if ENABLE_HTTP_PROXY |
338 | #if ENABLE_HTTP_PROXY |
316 | free (proxy_host), proxy_host = strdup (val); |
339 | free (proxy_host), proxy_host = strdup (val); |
317 | #endif |
340 | #endif |
… | |
… | |
336 | /* node-specific, defaultable */ |
359 | /* node-specific, defaultable */ |
337 | else if (!strcmp (var, "udp-port")) |
360 | else if (!strcmp (var, "udp-port")) |
338 | node->udp_port = atoi (val); |
361 | node->udp_port = atoi (val); |
339 | else if (!strcmp (var, "tcp-port")) |
362 | else if (!strcmp (var, "tcp-port")) |
340 | node->tcp_port = atoi (val); |
363 | node->tcp_port = atoi (val); |
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364 | else if (!strcmp (var, "dns-hostname")) |
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365 | { |
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366 | #if ENABLE_DNS |
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367 | free (node->dns_hostname), node->dns_hostname = strdup (val); |
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368 | #endif |
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369 | } |
341 | else if (!strcmp (var, "dns-port")) |
370 | else if (!strcmp (var, "dns-port")) |
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371 | { |
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372 | #if ENABLE_DNS |
342 | node->dns_port = atoi (val); |
373 | node->dns_port = atoi (val); |
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374 | #endif |
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375 | } |
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376 | else if (!strcmp (var, "dns-domain")) |
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377 | { |
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378 | #if ENABLE_DNS |
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379 | free (node->domain), node->domain = strdup (val); |
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380 | #endif |
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381 | } |
343 | else if (!strcmp (var, "router-priority")) |
382 | else if (!strcmp (var, "router-priority")) |
344 | node->routerprio = atoi (val); |
383 | node->routerprio = atoi (val); |
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384 | else if (!strcmp (var, "max-retry")) |
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385 | node->max_retry = atoi (val); |
345 | else if (!strcmp (var, "connect")) |
386 | else if (!strcmp (var, "connect")) |
346 | { |
387 | { |
347 | if (!strcmp (val, "ondemand")) |
388 | if (!strcmp (val, "ondemand")) |
348 | node->connectmode = conf_node::C_ONDEMAND; |
389 | node->connectmode = conf_node::C_ONDEMAND; |
349 | else if (!strcmp (val, "never")) |
390 | else if (!strcmp (val, "never")) |
… | |
… | |
352 | node->connectmode = conf_node::C_ALWAYS; |
393 | node->connectmode = conf_node::C_ALWAYS; |
353 | else if (!strcmp (val, "disabled")) |
394 | else if (!strcmp (val, "disabled")) |
354 | node->connectmode = conf_node::C_DISABLED; |
395 | node->connectmode = conf_node::C_DISABLED; |
355 | else |
396 | else |
356 | slog (L_WARN, |
397 | slog (L_WARN, |
357 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"), |
398 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d, ignoring."), |
358 | var, fname, lineno); |
399 | var, fname, lineno); |
359 | } |
400 | } |
360 | else if (!strcmp (var, "inherit-tos")) |
401 | else if (!strcmp (var, "inherit-tos")) |
361 | { |
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362 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
402 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
363 | } |
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364 | else if (!strcmp (var, "compress")) |
403 | else if (!strcmp (var, "compress")) |
365 | { |
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366 | parse_bool (node->compress, "compress", true, false); |
404 | parse_bool (node->compress, "compress", true, false); |
367 | } |
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368 | // all these bool options really really cost a lot of executable size! |
405 | // all these bool options really really cost a lot of executable size! |
369 | else if (!strcmp (var, "enable-tcp")) |
406 | else if (!strcmp (var, "enable-tcp")) |
370 | { |
407 | { |
371 | #if ENABLE_TCP |
408 | #if ENABLE_TCP |
372 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
409 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
… | |
… | |
387 | else if (!strcmp (var, "enable-udp")) |
424 | else if (!strcmp (var, "enable-udp")) |
388 | { |
425 | { |
389 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
426 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
390 | } |
427 | } |
391 | else if (!strcmp (var, "enable-rawip")) |
428 | else if (!strcmp (var, "enable-rawip")) |
392 | {; |
429 | { |
393 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
430 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
394 | } |
431 | } |
395 | |
432 | |
396 | // unknown or misplaced |
433 | // unknown or misplaced |
397 | else |
434 | else |
398 | slog (L_WARN, |
435 | slog (L_WARN, |
399 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
436 | _("unknown or misplaced variable `%s', at '%s' line %d, skipping."), |
400 | var, fname, lineno); |
437 | var, fname, lineno); |
401 | } |
438 | } |
402 | |
439 | |
403 | fclose (f); |
440 | fclose (f); |
404 | } |
441 | } |
… | |
… | |
487 | printf ("\n"); |
524 | printf ("\n"); |
488 | } |
525 | } |
489 | |
526 | |
490 | configuration::configuration () |
527 | configuration::configuration () |
491 | { |
528 | { |
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529 | asprintf (&confbase, "%s/gvpe", CONFDIR); |
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530 | |
492 | init (); |
531 | init (); |
493 | } |
532 | } |
494 | |
533 | |
495 | configuration::~configuration () |
534 | configuration::~configuration () |
496 | { |
535 | { |