1 | /* |
1 | /* |
2 | conf.c -- configuration code |
2 | conf.C -- configuration code |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
5 | This file is part of GVPE. |
5 | This file is part of GVPE. |
6 | |
6 | |
7 | GVPE is free software; you can redistribute it and/or modify it |
7 | GVPE is free software; you can redistribute it and/or modify it |
8 | under the terms of the GNU General Public License as published by the |
8 | under the terms of the GNU General Public License as published by the |
… | |
… | |
38 | #include <errno.h> |
38 | #include <errno.h> |
39 | #include <netdb.h> |
39 | #include <netdb.h> |
40 | #include <sys/stat.h> |
40 | #include <sys/stat.h> |
41 | #include <sys/types.h> |
41 | #include <sys/types.h> |
42 | #include <unistd.h> |
42 | #include <unistd.h> |
|
|
43 | #include <pwd.h> |
43 | |
44 | |
44 | #include "netcompat.h" |
45 | #include "netcompat.h" |
45 | |
46 | |
46 | #include <openssl/err.h> |
47 | #include <openssl/err.h> |
47 | #include <openssl/pem.h> |
48 | #include <openssl/pem.h> |
… | |
… | |
57 | char *thisnode; |
58 | char *thisnode; |
58 | char *identname; |
59 | char *identname; |
59 | |
60 | |
60 | struct configuration conf; |
61 | struct configuration conf; |
61 | |
62 | |
|
|
63 | u8 |
62 | u8 best_protocol (u8 protset) |
64 | best_protocol (u8 protset) |
63 | { |
65 | { |
64 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
66 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
65 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
67 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
66 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
68 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
67 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
69 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
68 | if (protset & PROT_DNSv4 ) return PROT_DNSv4; |
70 | if (protset & PROT_DNSv4 ) return PROT_DNSv4; |
69 | |
71 | |
70 | return 0; |
72 | return 0; |
71 | } |
73 | } |
72 | |
74 | |
|
|
75 | const char * |
73 | const char *strprotocol (u8 protocol) |
76 | strprotocol (u8 protocol) |
74 | { |
77 | { |
75 | if (protocol & PROT_IPv4 ) return "rawip"; |
78 | if (protocol & PROT_IPv4 ) return "rawip"; |
76 | if (protocol & PROT_ICMPv4) return "icmp"; |
79 | if (protocol & PROT_ICMPv4) return "icmp"; |
77 | if (protocol & PROT_UDPv4 ) return "udp"; |
80 | if (protocol & PROT_UDPv4 ) return "udp"; |
78 | if (protocol & PROT_TCPv4 ) return "tcp"; |
81 | if (protocol & PROT_TCPv4 ) return "tcp"; |
… | |
… | |
103 | return false; |
106 | return false; |
104 | |
107 | |
105 | return true; |
108 | return true; |
106 | } |
109 | } |
107 | |
110 | |
108 | void |
|
|
109 | conf_node::print () |
|
|
110 | { |
|
|
111 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", |
|
|
112 | id, |
|
|
113 | id >> 8, id & 0xff, |
|
|
114 | compress ? 'Y' : 'N', |
|
|
115 | connectmode == C_ONDEMAND ? "ondemand" |
|
|
116 | : connectmode == C_NEVER ? "never" |
|
|
117 | : connectmode == C_ALWAYS ? "always" |
|
|
118 | : connectmode == C_DISABLED ? "disabled" |
|
|
119 | : "", |
|
|
120 | nodename, |
|
|
121 | hostname ? hostname : "", |
|
|
122 | hostname ? ":" : "", |
|
|
123 | hostname ? udp_port : 0 |
|
|
124 | ); |
|
|
125 | } |
|
|
126 | |
|
|
127 | conf_node::~conf_node () |
111 | conf_node::~conf_node () |
128 | { |
112 | { |
129 | #if 0 |
113 | #if 0 |
130 | // does not work, because string pointers etc. are shared |
114 | // does not work, because string pointers etc. are shared |
131 | // is not called, however |
115 | // is not called, however |
… | |
… | |
140 | free (dns_hostname); |
124 | free (dns_hostname); |
141 | #endif |
125 | #endif |
142 | #endif |
126 | #endif |
143 | } |
127 | } |
144 | |
128 | |
|
|
129 | void |
145 | void configuration::init () |
130 | configuration::init () |
146 | { |
131 | { |
147 | memset (this, 0, sizeof (*this)); |
132 | memset (this, 0, sizeof (*this)); |
148 | |
133 | |
149 | mtu = DEFAULT_MTU; |
134 | mtu = DEFAULT_MTU; |
|
|
135 | nfmark = 0; |
150 | rekey = DEFAULT_REKEY; |
136 | rekey = DEFAULT_REKEY; |
151 | keepalive = DEFAULT_KEEPALIVE; |
137 | keepalive = DEFAULT_KEEPALIVE; |
152 | llevel = L_INFO; |
138 | llevel = L_INFO; |
153 | ip_proto = IPPROTO_GRE; |
139 | ip_proto = IPPROTO_GRE; |
154 | #if ENABLE_ICMP |
140 | #if ENABLE_ICMP |
… | |
… | |
166 | default_node.if_up_data = strdup (""); |
152 | default_node.if_up_data = strdup (""); |
167 | |
153 | |
168 | #if ENABLE_DNS |
154 | #if ENABLE_DNS |
169 | default_node.dns_port = 0; // default is 0 == client |
155 | default_node.dns_port = 0; // default is 0 == client |
170 | |
156 | |
|
|
157 | dns_case_preserving = true; |
171 | dns_forw_host = strdup ("127.0.0.1"); |
158 | dns_forw_host = strdup ("127.0.0.1"); |
172 | dns_forw_port = 53; |
159 | dns_forw_port = 53; |
173 | dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR; |
160 | dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR; |
174 | dns_send_interval = DEFAULT_DNS_SEND_INTERVAL; |
161 | dns_send_interval = DEFAULT_DNS_SEND_INTERVAL; |
175 | dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR; |
162 | dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR; |
176 | dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING; |
163 | dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING; |
177 | #endif |
164 | #endif |
178 | |
165 | |
179 | conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
166 | pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
|
|
167 | seed_dev = strdup ("/dev/urandom"); |
|
|
168 | reseed = DEFAULT_RESEED; |
180 | } |
169 | } |
181 | |
170 | |
|
|
171 | void |
182 | void configuration::cleanup() |
172 | configuration::cleanup () |
183 | { |
173 | { |
184 | if (rsa_key) |
174 | if (rsa_key) |
185 | RSA_free (rsa_key); |
175 | RSA_free (rsa_key); |
186 | |
176 | |
187 | rsa_key = 0; |
177 | rsa_key = 0; |
188 | |
178 | |
|
|
179 | free (seed_dev); seed_dev = 0; |
189 | free (pidfilename); pidfilename = 0; |
180 | free (pidfilename); pidfilename = 0; |
190 | free (ifname); ifname = 0; |
181 | free (ifname); ifname = 0; |
191 | #if ENABLE_HTTP_PROXY |
182 | #if ENABLE_HTTP_PROXY |
192 | free (proxy_host); proxy_host = 0; |
183 | free (proxy_host); proxy_host = 0; |
193 | free (proxy_auth); proxy_auth = 0; |
184 | free (proxy_auth); proxy_auth = 0; |
194 | #endif |
185 | #endif |
195 | #if ENABLE_DNS |
186 | #if ENABLE_DNS |
196 | free (dns_forw_host); dns_forw_host = 0; |
187 | free (dns_forw_host); dns_forw_host = 0; |
197 | #endif |
188 | #endif |
|
|
189 | free (change_root); change_root = 0; |
|
|
190 | free (script_if_up); script_if_up = 0; |
|
|
191 | free (script_node_up); script_node_up = 0; |
|
|
192 | free (script_node_change); script_node_change = 0; |
|
|
193 | free (script_node_down); script_node_down = 0; |
198 | } |
194 | } |
199 | |
195 | |
200 | void |
196 | void |
201 | configuration::clear () |
197 | configuration::clear () |
202 | { |
198 | { |
… | |
… | |
206 | nodes.clear (); |
202 | nodes.clear (); |
207 | |
203 | |
208 | cleanup (); |
204 | cleanup (); |
209 | init (); |
205 | init (); |
210 | } |
206 | } |
|
|
207 | |
|
|
208 | conf_node * |
|
|
209 | configuration::find_node (const char *name) |
|
|
210 | { |
|
|
211 | for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
|
|
212 | if (!strcmp ((*i)->nodename, name)) |
|
|
213 | return *i; |
|
|
214 | |
|
|
215 | return 0; |
|
|
216 | } |
|
|
217 | |
|
|
218 | //static bool |
|
|
219 | //is_true (const char *name) |
|
|
220 | //{ |
|
|
221 | //re |
|
|
222 | //} |
211 | |
223 | |
212 | #define parse_bool(target,name,trueval,falseval) do { \ |
224 | #define parse_bool(target,name,trueval,falseval) do { \ |
213 | if (!strcmp (val, "yes")) target = trueval; \ |
225 | if (!strcmp (val, "yes")) target = trueval; \ |
214 | else if (!strcmp (val, "no")) target = falseval; \ |
226 | else if (!strcmp (val, "no")) target = falseval; \ |
215 | else if (!strcmp (val, "true")) target = trueval; \ |
227 | else if (!strcmp (val, "true")) target = trueval; \ |
216 | else if (!strcmp (val, "false")) target = falseval; \ |
228 | else if (!strcmp (val, "false")) target = falseval; \ |
217 | else if (!strcmp (val, "on")) target = trueval; \ |
229 | else if (!strcmp (val, "on")) target = trueval; \ |
218 | else if (!strcmp (val, "off")) target = falseval; \ |
230 | else if (!strcmp (val, "off")) target = falseval; \ |
219 | else \ |
231 | else \ |
220 | return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed. (ignored)"); \ |
232 | return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed, ignored"); \ |
221 | } while (0) |
233 | } while (0) |
222 | |
234 | |
223 | const char * |
235 | const char * |
224 | configuration_parser::parse_line (char *line) |
236 | configuration_parser::parse_line (char *line) |
225 | { |
237 | { |
… | |
… | |
243 | return 0; /* comment: ignore */ |
255 | return 0; /* comment: ignore */ |
244 | |
256 | |
245 | char *val = strtok (NULL, "\t\n\r ="); |
257 | char *val = strtok (NULL, "\t\n\r ="); |
246 | |
258 | |
247 | if (!val || val[0] == '#') |
259 | if (!val || val[0] == '#') |
248 | return _("no value given for variable. (ignored)"); |
260 | return _("no value given for variable, ignored"); |
249 | |
261 | |
250 | if (!strcmp (var, "on")) |
262 | else if (!strcmp (var, "on")) |
251 | { |
263 | { |
252 | if (!::thisnode |
264 | if (::thisnode |
253 | || (val[0] == '!' && strcmp (val + 1, ::thisnode)) |
265 | && ((val[0] == '!' && strcmp (val + 1, ::thisnode)) |
254 | || !strcmp (val, ::thisnode)) |
266 | || !strcmp (val, ::thisnode))) |
255 | return parse_line (strtok (NULL, "\n\r")); |
267 | return parse_line (strtok (NULL, "\n\r")); |
256 | else |
268 | } |
257 | return 0; |
269 | |
|
|
270 | else if (!strcmp (var, "include")) |
|
|
271 | { |
|
|
272 | char *fname = conf.config_filename (val); |
|
|
273 | parse_file (fname); |
|
|
274 | free (fname); |
258 | } |
275 | } |
259 | |
276 | |
260 | // truly global |
277 | // truly global |
261 | if (!strcmp (var, "loglevel")) |
278 | else if (!strcmp (var, "loglevel")) |
262 | { |
279 | { |
263 | loglevel l = string_to_loglevel (val); |
280 | loglevel l = string_to_loglevel (val); |
264 | |
281 | |
265 | if (l == L_NONE) |
282 | if (l == L_NONE) |
266 | return _("unknown loglevel. (skipping)"); |
283 | return _("unknown loglevel, ignored"); |
267 | } |
284 | } |
268 | else if (!strcmp (var, "ip-proto")) |
285 | else if (!strcmp (var, "ip-proto")) |
269 | conf.ip_proto = atoi (val); |
286 | conf.ip_proto = atoi (val); |
270 | else if (!strcmp (var, "icmp-type")) |
287 | else if (!strcmp (var, "icmp-type")) |
271 | { |
288 | { |
272 | #if ENABLE_ICMP |
289 | #if ENABLE_ICMP |
273 | conf.icmp_type = atoi (val); |
290 | conf.icmp_type = atoi (val); |
274 | #endif |
291 | #endif |
275 | } |
292 | } |
|
|
293 | else if (!strcmp (var, "chuser")) |
|
|
294 | { |
|
|
295 | struct passwd *pw = getpwnam (val); |
|
|
296 | if (!pw) |
|
|
297 | return _("user specified for chuser not found"); |
276 | |
298 | |
277 | // per config |
299 | conf.change_uid = pw->pw_uid; |
|
|
300 | conf.change_gid = pw->pw_gid; |
|
|
301 | } |
|
|
302 | else if (!strcmp (var, "chuid")) |
|
|
303 | conf.change_uid = atoi (val); |
|
|
304 | else if (!strcmp (var, "chgid")) |
|
|
305 | conf.change_gid = atoi (val); |
|
|
306 | else if (!strcmp (var, "chroot")) |
|
|
307 | free (conf.change_root), conf.change_root = strdup (val); |
|
|
308 | |
|
|
309 | // per node |
|
|
310 | else if (!strcmp (var, "global")) |
|
|
311 | node = &conf.default_node; |
278 | else if (!strcmp (var, "node")) |
312 | else if (!strcmp (var, "node")) |
279 | { |
313 | { |
280 | parse_argv (); |
314 | node = conf.find_node (val); |
281 | |
315 | |
|
|
316 | if (!node) |
|
|
317 | { |
282 | conf.default_node.id++; |
318 | conf.default_node.id++; |
283 | node = new conf_node (conf.default_node); |
319 | node = new conf_node (conf.default_node); |
284 | conf.nodes.push_back (node); |
320 | conf.nodes.push_back (node); |
285 | node->nodename = strdup (val); |
321 | 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 | } |
322 | } |
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 | } |
323 | else if (!strcmp (var, "private-key")) |
324 | else if (!strcmp (var, "private-key")) |
324 | free (conf.prikeyfile), conf.prikeyfile = strdup (val); |
325 | free (conf.prikeyfile), conf.prikeyfile = strdup (val); |
325 | else if (!strcmp (var, "ifpersist")) |
326 | else if (!strcmp (var, "ifpersist")) |
326 | parse_bool (conf.ifpersist, "ifpersist", true, false); |
327 | parse_bool (conf.ifpersist, "ifpersist", true, false); |
… | |
… | |
330 | conf.rekey = atoi (val); |
331 | conf.rekey = atoi (val); |
331 | else if (!strcmp (var, "keepalive")) |
332 | else if (!strcmp (var, "keepalive")) |
332 | conf.keepalive = atoi (val); |
333 | conf.keepalive = atoi (val); |
333 | else if (!strcmp (var, "mtu")) |
334 | else if (!strcmp (var, "mtu")) |
334 | conf.mtu = atoi (val); |
335 | conf.mtu = atoi (val); |
|
|
336 | else if (!strcmp (var, "nfmark")) |
|
|
337 | conf.nfmark = atoi (val); |
|
|
338 | else if (!strcmp (var, "seed-device")) |
|
|
339 | free (conf.seed_dev), conf.seed_dev = strdup (val); |
|
|
340 | else if (!strcmp (var, "seed-interval")) |
|
|
341 | conf.reseed = atoi (val); |
335 | else if (!strcmp (var, "if-up")) |
342 | else if (!strcmp (var, "if-up")) |
336 | free (conf.script_if_up), conf.script_if_up = strdup (val); |
343 | free (conf.script_if_up), conf.script_if_up = strdup (val); |
337 | else if (!strcmp (var, "node-up")) |
344 | else if (!strcmp (var, "node-up")) |
338 | free (conf.script_node_up), conf.script_node_up = strdup (val); |
345 | free (conf.script_node_up), conf.script_node_up = strdup (val); |
|
|
346 | else if (!strcmp (var, "node-change")) |
|
|
347 | free (conf.script_node_change), conf.script_node_change = strdup (val); |
339 | else if (!strcmp (var, "node-down")) |
348 | else if (!strcmp (var, "node-down")) |
340 | free (conf.script_node_down), conf.script_node_down = strdup (val); |
349 | free (conf.script_node_down), conf.script_node_down = strdup (val); |
341 | else if (!strcmp (var, "pid-file")) |
350 | else if (!strcmp (var, "pid-file")) |
342 | free (conf.pidfilename), conf.pidfilename = strdup (val); |
351 | free (conf.pidfilename), conf.pidfilename = strdup (val); |
343 | else if (!strcmp (var, "dns-forw-host")) |
352 | else if (!strcmp (var, "dns-forw-host")) |
… | |
… | |
372 | } |
381 | } |
373 | else if (!strcmp (var, "dns-max-outstanding")) |
382 | else if (!strcmp (var, "dns-max-outstanding")) |
374 | { |
383 | { |
375 | #if ENABLE_DNS |
384 | #if ENABLE_DNS |
376 | conf.dns_max_outstanding = atoi (val); |
385 | conf.dns_max_outstanding = atoi (val); |
|
|
386 | #endif |
|
|
387 | } |
|
|
388 | else if (!strcmp (var, "dns-case-preserving")) |
|
|
389 | { |
|
|
390 | #if ENABLE_DNS |
|
|
391 | parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false); |
377 | #endif |
392 | #endif |
378 | } |
393 | } |
379 | else if (!strcmp (var, "http-proxy-host")) |
394 | else if (!strcmp (var, "http-proxy-host")) |
380 | { |
395 | { |
381 | #if ENABLE_HTTP_PROXY |
396 | #if ENABLE_HTTP_PROXY |
… | |
… | |
437 | else if (!strcmp (val, "always")) |
452 | else if (!strcmp (val, "always")) |
438 | node->connectmode = conf_node::C_ALWAYS; |
453 | node->connectmode = conf_node::C_ALWAYS; |
439 | else if (!strcmp (val, "disabled")) |
454 | else if (!strcmp (val, "disabled")) |
440 | node->connectmode = conf_node::C_DISABLED; |
455 | node->connectmode = conf_node::C_DISABLED; |
441 | else |
456 | else |
442 | return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)"); |
457 | return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored"); |
443 | } |
458 | } |
444 | else if (!strcmp (var, "inherit-tos")) |
459 | else if (!strcmp (var, "inherit-tos")) |
445 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
460 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
446 | else if (!strcmp (var, "compress")) |
461 | else if (!strcmp (var, "compress")) |
447 | parse_bool (node->compress, "compress", true, false); |
462 | parse_bool (node->compress, "compress", true, false); |
… | |
… | |
481 | else if (!strcmp (var, "max-queue")) |
496 | else if (!strcmp (var, "max-queue")) |
482 | node->max_queue = atoi (val); |
497 | node->max_queue = atoi (val); |
483 | |
498 | |
484 | // unknown or misplaced |
499 | // unknown or misplaced |
485 | else |
500 | else |
486 | return _("unknown configuration directive. (ignored)"); |
501 | return _("unknown configuration directive - ignored"); |
487 | |
502 | |
488 | return 0; |
503 | return 0; |
489 | } |
504 | } |
490 | |
505 | |
|
|
506 | void |
491 | void conf_node::finalise () |
507 | conf_node::finalise () |
492 | { |
508 | { |
493 | if (max_queue < 1) |
509 | if (max_queue < 1) |
494 | { |
510 | { |
495 | slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename); |
511 | slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename); |
496 | max_queue = 1; |
512 | max_queue = 1; |
497 | } |
513 | } |
498 | |
514 | |
499 | if (routerprio && (connectmode != C_ALWAYS && connectmode != C_DISABLED)) |
515 | if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED)) |
500 | { |
516 | { |
501 | //slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename); |
517 | //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; |
518 | connectmode = C_ALWAYS; |
503 | } |
519 | } |
504 | } |
520 | } |
505 | |
521 | |
506 | void configuration_parser::parse_argv () |
522 | void |
|
|
523 | configuration_parser::parse_file (const char *fname) |
507 | { |
524 | { |
508 | for (int i = 0; i < argc; ++i) |
525 | if (FILE *f = fopen (fname, "r")) |
509 | { |
526 | { |
510 | char *v = argv [i]; |
527 | char line [2048]; |
|
|
528 | int lineno = 0; |
511 | |
529 | |
512 | if (!*v) |
530 | while (fgets (line, sizeof (line), f)) |
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 | { |
531 | { |
|
|
532 | lineno++; |
|
|
533 | |
530 | const char *warn = parse_line (enode ? enode + 1 : v); |
534 | const char *warn = parse_line (line); |
531 | |
535 | |
532 | if (warn) |
536 | if (warn) |
533 | slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v); |
537 | slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno); |
534 | |
|
|
535 | *v = 0; |
|
|
536 | } |
538 | } |
|
|
539 | |
|
|
540 | fclose (f); |
|
|
541 | } |
|
|
542 | else |
|
|
543 | { |
|
|
544 | slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
|
|
545 | exit (EXIT_FAILURE); |
537 | } |
546 | } |
538 | } |
547 | } |
539 | |
548 | |
540 | configuration_parser::configuration_parser (configuration &conf, |
549 | configuration_parser::configuration_parser (configuration &conf, |
541 | bool need_keys, |
550 | bool need_keys, |
542 | int argc, |
551 | int argc, |
543 | char **argv) |
552 | char **argv) |
544 | : conf (conf),need_keys (need_keys), argc (argc), argv (argv) |
553 | : conf (conf), need_keys (need_keys), argc (argc), argv (argv) |
545 | { |
554 | { |
546 | char *fname; |
555 | char *fname; |
547 | FILE *f; |
|
|
548 | |
556 | |
549 | conf.clear (); |
557 | conf.clear (); |
|
|
558 | node = &conf.default_node; |
550 | |
559 | |
551 | asprintf (&fname, "%s/gvpe.conf", confbase); |
560 | asprintf (&fname, "%s/gvpe.conf", confbase); |
552 | f = fopen (fname, "r"); |
561 | parse_file (fname); |
553 | |
|
|
554 | if (f) |
|
|
555 | { |
|
|
556 | char line[16384]; |
|
|
557 | int lineno = 0; |
|
|
558 | node = &conf.default_node; |
|
|
559 | |
|
|
560 | while (fgets (line, sizeof (line), f)) |
|
|
561 | { |
|
|
562 | lineno++; |
|
|
563 | |
|
|
564 | const char *warn = parse_line (line); |
|
|
565 | |
|
|
566 | if (warn) |
|
|
567 | slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno); |
|
|
568 | } |
|
|
569 | |
|
|
570 | fclose (f); |
|
|
571 | |
|
|
572 | parse_argv (); |
|
|
573 | } |
|
|
574 | else |
|
|
575 | { |
|
|
576 | slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
|
|
577 | exit (EXIT_FAILURE); |
|
|
578 | } |
|
|
579 | |
|
|
580 | free (fname); |
562 | free (fname); |
581 | |
563 | |
582 | fname = conf.config_filename (conf.prikeyfile, "hostkey"); |
564 | fname = conf.config_filename (conf.prikeyfile, "hostkey"); |
583 | |
565 | |
584 | f = fopen (fname, "r"); |
566 | if (FILE *f = fopen (fname, "r")) |
585 | if (f) |
|
|
586 | { |
567 | { |
587 | conf.rsa_key = RSA_new (); |
568 | conf.rsa_key = RSA_new (); |
588 | |
569 | |
589 | if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL)) |
570 | if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL)) |
590 | { |
571 | { |
… | |
… | |
597 | |
578 | |
598 | fclose (f); |
579 | fclose (f); |
599 | } |
580 | } |
600 | else |
581 | else |
601 | { |
582 | { |
602 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
603 | |
|
|
604 | if (need_keys) |
583 | if (need_keys) |
|
|
584 | { |
|
|
585 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
605 | exit (EXIT_FAILURE); |
586 | 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); |
|
|
615 | } |
587 | } |
|
|
588 | } |
616 | |
589 | |
617 | free (fname); |
590 | free (fname); |
618 | |
591 | |
|
|
592 | fname = conf.config_filename (conf.pidfilename); |
|
|
593 | free (conf.pidfilename); conf.pidfilename = fname; |
|
|
594 | |
619 | for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
595 | for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
|
|
596 | { |
|
|
597 | conf_node *node = *i; |
|
|
598 | char *fname; |
|
|
599 | FILE *f; |
|
|
600 | |
|
|
601 | asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
|
|
602 | |
|
|
603 | f = fopen (fname, "r"); |
|
|
604 | if (f) |
|
|
605 | { |
|
|
606 | node->rsa_key = RSA_new (); |
|
|
607 | |
|
|
608 | if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL)) |
|
|
609 | { |
|
|
610 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
|
|
611 | slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
|
|
612 | exit (EXIT_FAILURE); |
|
|
613 | } |
|
|
614 | |
|
|
615 | require (RSA_blinding_on (node->rsa_key, 0)); |
|
|
616 | |
|
|
617 | fclose (f); |
|
|
618 | } |
|
|
619 | else |
|
|
620 | { |
|
|
621 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
622 | |
|
|
623 | if (need_keys) |
|
|
624 | exit (EXIT_FAILURE); |
|
|
625 | } |
|
|
626 | |
|
|
627 | free (fname); |
|
|
628 | |
620 | (*i)->finalise (); |
629 | (*i)->finalise (); |
621 | } |
630 | } |
622 | |
631 | |
|
|
632 | if (::thisnode) |
|
|
633 | { |
|
|
634 | conf.thisnode = conf.find_node (::thisnode); |
|
|
635 | |
|
|
636 | if (need_keys) |
|
|
637 | { |
|
|
638 | if (!conf.thisnode) |
|
|
639 | { |
|
|
640 | slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode); |
|
|
641 | exit (EXIT_FAILURE); |
|
|
642 | } |
|
|
643 | |
|
|
644 | if (conf.rsa_key && conf.thisnode->rsa_key) |
|
|
645 | if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0 |
|
|
646 | || BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0) |
|
|
647 | { |
|
|
648 | slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
|
|
649 | exit (EXIT_FAILURE); |
|
|
650 | } |
|
|
651 | } |
|
|
652 | } |
|
|
653 | |
|
|
654 | parse_argv (); |
|
|
655 | } |
|
|
656 | |
|
|
657 | void |
|
|
658 | configuration_parser::parse_argv () |
|
|
659 | { |
|
|
660 | for (int i = 0; i < argc; ++i) |
|
|
661 | { |
|
|
662 | char *v = argv [i]; |
|
|
663 | |
|
|
664 | if (!*v) |
|
|
665 | continue; |
|
|
666 | |
|
|
667 | char *enode = v; |
|
|
668 | |
|
|
669 | while (*enode != '.' && *enode > ' ' && *enode != '=' && *enode) |
|
|
670 | enode++; |
|
|
671 | |
|
|
672 | if (*enode != '.') |
|
|
673 | enode = 0; |
|
|
674 | |
|
|
675 | if (enode) |
|
|
676 | { |
|
|
677 | char *val = strdup (v); |
|
|
678 | val [enode - v] = 0; |
|
|
679 | node = conf.find_node (val); |
|
|
680 | free (val); |
|
|
681 | |
|
|
682 | if (!node) |
|
|
683 | { |
|
|
684 | slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v); |
|
|
685 | continue; |
|
|
686 | } |
|
|
687 | } |
|
|
688 | else |
|
|
689 | node = &conf.default_node; |
|
|
690 | |
|
|
691 | const char *warn = parse_line (enode ? enode + 1 : v); |
|
|
692 | |
|
|
693 | if (warn) |
|
|
694 | slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v); |
|
|
695 | } |
|
|
696 | } |
|
|
697 | |
|
|
698 | char * |
623 | char *configuration::config_filename (const char *name, const char *dflt) |
699 | configuration::config_filename (const char *name, const char *dflt) |
624 | { |
700 | { |
625 | char *fname; |
701 | char *fname; |
626 | |
702 | |
627 | asprintf (&fname, name ? name : dflt, ::thisnode); |
703 | asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>"); |
628 | |
704 | |
629 | if (!ABSOLUTE_PATH (fname)) |
705 | if (!ABSOLUTE_PATH (fname)) |
630 | { |
706 | { |
631 | char *rname = fname; |
707 | char *rname = fname; |
632 | asprintf (&fname, "%s/%s", confbase, rname); |
708 | asprintf (&fname, "%s/%s", confbase, rname); |
633 | free (rname); |
709 | free (rname); |
634 | } |
710 | } |
635 | |
711 | |
636 | return fname; |
712 | return fname; |
|
|
713 | } |
|
|
714 | |
|
|
715 | void |
|
|
716 | conf_node::print () |
|
|
717 | { |
|
|
718 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n", |
|
|
719 | id, |
|
|
720 | id >> 8, id & 0xff, |
|
|
721 | compress ? 'Y' : 'N', |
|
|
722 | connectmode == C_ONDEMAND ? "ondemand" |
|
|
723 | : connectmode == C_NEVER ? "never" |
|
|
724 | : connectmode == C_ALWAYS ? "always" |
|
|
725 | : connectmode == C_DISABLED ? "disabled" |
|
|
726 | : "", |
|
|
727 | nodename, |
|
|
728 | protocols, |
|
|
729 | hostname ? hostname : "", |
|
|
730 | hostname ? ":" : "", |
|
|
731 | hostname ? udp_port : 0 |
|
|
732 | ); |
637 | } |
733 | } |
638 | |
734 | |
639 | void |
735 | void |
640 | configuration::print () |
736 | configuration::print () |
641 | { |
737 | { |
… | |
… | |
648 | printf (_("interface: %s\n"), ifname); |
744 | printf (_("interface: %s\n"), ifname); |
649 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
745 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
650 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
746 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
651 | printf ("\n"); |
747 | printf ("\n"); |
652 | |
748 | |
653 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
749 | printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n", |
654 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
750 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port")); |
655 | |
751 | |
656 | for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
752 | for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
657 | (*i)->print (); |
753 | (*i)->print (); |
658 | |
754 | |
659 | printf ("\n"); |
755 | printf ("\n"); |
… | |
… | |
669 | configuration::~configuration () |
765 | configuration::~configuration () |
670 | { |
766 | { |
671 | cleanup (); |
767 | cleanup (); |
672 | } |
768 | } |
673 | |
769 | |
674 | |
|
|