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Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.29 by pcg, Tue Mar 1 06:27:20 2005 UTC

1/* 1/*
2 conf.c -- configuration code 2 conf.c -- configuration code
3 Copyright (C) 1998 Robert van der Meulen 3 Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com>
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
9 This program is free software; you can redistribute it and/or modify 5 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by 6 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or 7 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version. 8 (at your option) any later version.
… …
31#include <netdb.h> 27#include <netdb.h>
32#include <sys/stat.h> 28#include <sys/stat.h>
33#include <sys/types.h> 29#include <sys/types.h>
34#include <unistd.h> 30#include <unistd.h>
35 31
36#include <netinet/in.h> 32#include "netcompat.h"
37 33
38#include <openssl/err.h> 34#include <openssl/err.h>
39#include <openssl/pem.h> 35#include <openssl/pem.h>
40#include <openssl/rsa.h> 36#include <openssl/rsa.h>
41#include <openssl/rand.h> 37#include <openssl/rand.h>
38#include <openssl/bn.h>
42 39
43#include "gettext.h" 40#include "gettext.h"
44 41
45#include "conf.h" 42#include "conf.h"
46#include "slog.h" 43#include "slog.h"
47#include "util.h" 44#include "util.h"
48 45
49char *confbase; 46char *confbase;
50char *thisnode; 47char *thisnode;
51char *identname; 48char *identname;
52char *pidfilename;
53 49
54struct configuration conf; 50struct configuration conf;
55 51
56u8 best_protocol (u8 protset) 52u8 best_protocol (u8 protset)
57{ 53{
58 if (protset & PROT_IPv4 ) return PROT_IPv4; 54 if (protset & PROT_IPv4 ) return PROT_IPv4;
55 if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59 if (protset & PROT_UDPv4) return PROT_UDPv4; 56 if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60 if (protset & PROT_TCPv4) return PROT_TCPv4; 57 if (protset & PROT_TCPv4 ) return PROT_TCPv4;
58 if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61 59
62 return 0; 60 return 0;
63} 61}
64 62
65const char *strprotocol (u8 protocol) 63const char *strprotocol (u8 protocol)
66{ 64{
67 if (protocol & PROT_IPv4 ) return "rawip"; 65 if (protocol & PROT_IPv4 ) return "rawip";
66 if (protocol & PROT_ICMPv4) return "icmp";
68 if (protocol & PROT_UDPv4) return "udp"; 67 if (protocol & PROT_UDPv4 ) return "udp";
68 if (protocol & PROT_TCPv4 ) return "tcp";
69 if (protocol & PROT_DNSv4 ) return "dns";
69 70
70 return "<unknown>"; 71 return "<unknown>";
71}
72
73configuration::configuration ()
74{
75 init ();
76}
77
78configuration::~configuration ()
79{
80 cleanup ();
81}
82
83void configuration::init ()
84{
85 memset (this, 0, sizeof (*this));
86
87 rekey = DEFAULT_REKEY;
88 keepalive = DEFAULT_KEEPALIVE;
89 llevel = L_INFO;
90 ip_proto = IPPROTO_GRE;
91
92 default_node.udp_port = DEFAULT_UDPPORT;
93 default_node.tcp_port = DEFAULT_UDPPORT;
94 default_node.connectmode = conf_node::C_ALWAYS;
95 default_node.compress = true;
96 default_node.protocols = PROT_UDPv4;
97}
98
99void configuration::cleanup()
100{
101 if (rsa_key)
102 RSA_free (rsa_key);
103
104 free (ifname);
105
106 rsa_key = 0;
107 ifname = 0;
108}
109
110void
111configuration::clear_config ()
112{
113 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
114 delete *i;
115
116 nodes.clear ();
117
118 cleanup ();
119 init ();
120}
121
122#define parse_bool(target,name,trueval,falseval) \
123 if (!strcmp (val, "yes")) target = trueval; \
124 else if (!strcmp (val, "no")) target = falseval; \
125 else if (!strcmp (val, "true")) target = trueval; \
126 else if (!strcmp (val, "false")) target = falseval; \
127 else if (!strcmp (val, "on")) target = trueval; \
128 else if (!strcmp (val, "off")) target = falseval; \
129 else \
130 slog (L_WARN, \
131 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \
132 name, var, fname, lineno);
133
134void configuration::read_config (bool need_keys)
135{
136 char *fname;
137 FILE *f;
138
139 clear_config ();
140
141 asprintf (&fname, "%s/vped.conf", confbase);
142 f = fopen (fname, "r");
143
144 if (f)
145 {
146 char line[16384];
147 int lineno = 0;
148 char *var, *val;
149 conf_node *node = &default_node;
150
151 while (fgets (line, sizeof (line), f))
152 {
153 lineno++;
154
155 {
156 char *end = line + strlen (line);
157
158 while (*end < ' ' && end >= line)
159 end--;
160
161 *++end = 0;
162 }
163
164 char *tok = line;
165
166retry:
167 var = strtok (tok, "\t =");
168 tok = 0;
169
170 if (!var || !var[0])
171 continue; /* no tokens on this line */
172
173 if (var[0] == '#')
174 continue; /* comment: ignore */
175
176 val = strtok (NULL, "\t\n\r =");
177
178 if (!val || val[0] == '#')
179 {
180 slog (L_WARN,
181 _("no value for variable `%s', at '%s' line %d"),
182 var, fname, lineno);
183 break;
184 }
185
186 if (!strcmp (var, "on"))
187 {
188 if (!::thisnode
189 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
190 || !strcmp (val, ::thisnode))
191 goto retry;
192
193 continue;
194 }
195
196 // truly global
197 if (!strcmp (var, "loglevel"))
198 {
199 loglevel l = string_to_loglevel (val);
200
201 if (l != L_NONE)
202 llevel = l;
203 else
204 slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
205 }
206 else if (!strcmp (var, "ip-proto"))
207 ip_proto = atoi (val);
208
209 // per config
210 else if (!strcmp (var, "node"))
211 {
212 default_node.id++;
213
214 node = new conf_node (default_node);
215
216 nodes.push_back (node);
217
218 node->nodename = strdup (val);
219
220 {
221 char *fname;
222 FILE *f;
223
224 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
225
226 f = fopen (fname, "r");
227 if (f)
228 {
229 node->rsa_key = RSA_new ();
230
231 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
232 {
233 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
234 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
235 exit (1);
236 }
237
238 RSA_blinding_on (node->rsa_key, 0);
239
240 fclose (f);
241 }
242 else
243 {
244 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
245
246 if (need_keys)
247 exit (1);
248 }
249
250 free (fname);
251 }
252
253 if (!::thisnode || !strcmp (node->nodename, ::thisnode))
254 thisnode = node;
255 }
256 else if (!strcmp (var, "private-key"))
257 prikeyfile = strdup (val);
258 else if (!strcmp (var, "ifpersist"))
259 {
260 parse_bool (ifpersist, "ifpersist", true, false);
261 }
262 else if (!strcmp (var, "ifname"))
263 ifname = strdup (val);
264 else if (!strcmp (var, "rekey"))
265 rekey = atoi (val);
266 else if (!strcmp (var, "keepalive"))
267 keepalive = atoi (val);
268 else if (!strcmp (var, "mtu"))
269 mtu = atoi (val);
270 else if (!strcmp (var, "if-up"))
271 script_if_up = strdup (val);
272 else if (!strcmp (var, "node-up"))
273 script_node_up = strdup (val);
274 else if (!strcmp (var, "node-down"))
275 script_node_down = strdup (val);
276
277 /* node-specific, non-defaultable */
278 else if (node != &default_node && !strcmp (var, "hostname"))
279 {
280 free (node->hostname);
281 node->hostname = strdup (val);
282 }
283
284 /* node-specific, defaultable */
285 else if (!strcmp (var, "udp-port"))
286 node->udp_port = atoi (val);
287 else if (!strcmp (var, "tcp-port"))
288 node->tcp_port = atoi (val);
289 else if (!strcmp (var, "router-priority"))
290 node->routerprio = atoi (val);
291 else if (!strcmp (var, "connect"))
292 {
293 if (!strcmp (val, "ondemand"))
294 node->connectmode = conf_node::C_ONDEMAND;
295 else if (!strcmp (val, "never"))
296 node->connectmode = conf_node::C_NEVER;
297 else if (!strcmp (val, "always"))
298 node->connectmode = conf_node::C_ALWAYS;
299 else if (!strcmp (val, "disabled"))
300 node->connectmode = conf_node::C_DISABLED;
301 else
302 slog (L_WARN,
303 _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
304 var, fname, lineno);
305 }
306 else if (!strcmp (var, "inherit-tos"))
307 {
308 parse_bool (node->inherit_tos, "inherit-tos", true, false);
309 }
310 else if (!strcmp (var, "compress"))
311 {
312 parse_bool (node->compress, "compress", true, false);
313 }
314 // all these bool options really really cost a lot of executable size!
315 else if (!strcmp (var, "enable-tcp"))
316 {
317 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
318 }
319 else if (!strcmp (var, "enable-udp"))
320 {
321 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
322 }
323 else if (!strcmp (var, "enable-rawip"))
324 {
325 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
326 }
327
328 // unknown or misplaced
329 else
330 {
331 slog (L_WARN,
332 _("unknown or misplaced variable `%s', at '%s' line %d"),
333 var, fname, lineno);
334 }
335 }
336
337 fclose (f);
338 }
339 else
340 {
341 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
342 exit (1);
343 }
344
345 free (fname);
346
347 fname = config_filename (prikeyfile, "hostkey");
348
349 f = fopen (fname, "r");
350 if (f)
351 {
352 rsa_key = RSA_new ();
353
354 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))
355 {
356 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
357 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
358 exit (1);
359 }
360
361 RSA_blinding_on (rsa_key, 0);
362
363 fclose (f);
364 }
365 else
366 {
367 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
368
369 if (need_keys)
370 exit (1);
371 }
372
373 free (fname);
374}
375
376char *configuration::config_filename (const char *name, const char *dflt)
377{
378 char *fname;
379
380 asprintf (&fname, name ? name : dflt, ::thisnode);
381
382 if (!ABSOLUTE_PATH (fname))
383 {
384 char *rname = fname;
385 asprintf (&fname, "%s/%s", confbase, rname);
386 free (rname);
387 }
388
389 return fname;
390}
391
392void
393configuration::print ()
394{
395 printf (_("\nConfiguration\n\n"));
396 printf (_("# of nodes: %d\n"), nodes.size ());
397 printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>");
398 printf (_("MTU: %d\n"), mtu);
399 printf (_("rekeying interval: %d\n"), rekey);
400 printf (_("keepalive interval: %d\n"), keepalive);
401 printf (_("interface: %s\n"), ifname);
402 printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
403 printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);
404 printf ("\n");
405
406 printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
407 _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
408
409 for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
410 (*i)->print ();
411
412 printf ("\n");
413} 72}
414 73
415void 74void
416conf_node::print () 75conf_node::print ()
417{ 76{
… …
427 hostname ? ":" : "", 86 hostname ? ":" : "",
428 hostname ? udp_port : 0 87 hostname ? udp_port : 0
429 ); 88 );
430} 89}
431 90
91conf_node::~conf_node ()
92{
93 if (rsa_key)
94 RSA_free (rsa_key);
95
96 free (nodename);
97 free (hostname);
98 free (domain);
99}
100
101void configuration::init ()
102{
103 memset (this, 0, sizeof (*this));
104
105 mtu = DEFAULT_MTU;
106 rekey = DEFAULT_REKEY;
107 keepalive = DEFAULT_KEEPALIVE;
108 llevel = L_INFO;
109 ip_proto = IPPROTO_GRE;
110#if ENABLE_ICMP
111 icmp_type = ICMP_ECHOREPLY;
112#endif
113
114 default_node.udp_port = DEFAULT_UDPPORT;
115 default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
116 default_node.connectmode = conf_node::C_ALWAYS;
117 default_node.compress = true;
118 default_node.protocols = 0;
119 default_node.max_retry = DEFAULT_MAX_RETRY;
120
121 conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
122}
123
124void configuration::cleanup()
125{
126 if (rsa_key)
127 RSA_free (rsa_key);
128
129 rsa_key = 0;
130
131 free (pidfilename); pidfilename = 0;
132 free (ifname); ifname = 0;
133#if ENABLE_HTTP_PROXY
134 free (proxy_host); proxy_host = 0;
135 free (proxy_auth); proxy_auth = 0;
136#endif
137#if ENABLE_DNS
138 free (dns_forw_host); dns_forw_host = 0;
139#endif
140}
141
142void
143configuration::clear_config ()
144{
145 for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
146 delete *i;
147
148 nodes.clear ();
149
150 cleanup ();
151 init ();
152}
153
154#define parse_bool(target,name,trueval,falseval) \
155 if (!strcmp (val, "yes")) target = trueval; \
156 else if (!strcmp (val, "no")) target = falseval; \
157 else if (!strcmp (val, "true")) target = trueval; \
158 else if (!strcmp (val, "false")) target = falseval; \
159 else if (!strcmp (val, "on")) target = trueval; \
160 else if (!strcmp (val, "off")) target = falseval; \
161 else \
162 slog (L_WARN, \
163 _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \
164 name, var, fname, lineno);
165
166void configuration::read_config (bool need_keys)
167{
168 char *fname;
169 FILE *f;
170
171 clear_config ();
172
173 asprintf (&fname, "%s/gvpe.conf", confbase);
174 f = fopen (fname, "r");
175
176 if (f)
177 {
178 char line[16384];
179 int lineno = 0;
180 char *var, *val;
181 conf_node *node = &default_node;
182
183 while (fgets (line, sizeof (line), f))
184 {
185 lineno++;
186
187 {
188 char *end = line + strlen (line);
189
190 while (*end < ' ' && end >= line)
191 end--;
192
193 *++end = 0;
194 }
195
196 char *tok = line;
197
198retry:
199 var = strtok (tok, "\t =");
200 tok = 0;
201
202 if (!var || !var[0])
203 continue; /* no tokens on this line */
204
205 if (var[0] == '#')
206 continue; /* comment: ignore */
207
208 val = strtok (NULL, "\t\n\r =");
209
210 if (!val || val[0] == '#')
211 {
212 slog (L_WARN,
213 _("no value for variable `%s', at '%s' line %d"),
214 var, fname, lineno);
215 break;
216 }
217
218 if (!strcmp (var, "on"))
219 {
220 if (!::thisnode
221 || (val[0] == '!' && strcmp (val + 1, ::thisnode))
222 || !strcmp (val, ::thisnode))
223 goto retry;
224
225 continue;
226 }
227
228 // truly global
229 if (!strcmp (var, "loglevel"))
230 {
231 loglevel l = string_to_loglevel (val);
232
233 if (l != L_NONE)
234 llevel = l;
235 else
236 slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
237 }
238 else if (!strcmp (var, "ip-proto"))
239 ip_proto = atoi (val);
240 else if (!strcmp (var, "icmp-type"))
241 {
242#if ENABLE_ICMP
243 icmp_type = atoi (val);
244#endif
245 }
246
247 // per config
248 else if (!strcmp (var, "node"))
249 {
250 default_node.id++;
251
252 node = new conf_node (default_node);
253
254 nodes.push_back (node);
255
256 node->nodename = strdup (val);
257
258 {
259 char *fname;
260 FILE *f;
261
262 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
263
264 f = fopen (fname, "r");
265 if (f)
266 {
267 node->rsa_key = RSA_new ();
268
269 if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
270 {
271 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
272 slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
273 exit (EXIT_FAILURE);
274 }
275
276 require (RSA_blinding_on (node->rsa_key, 0));
277
278 fclose (f);
279 }
280 else
281 {
282 slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
283
284 if (need_keys)
285 exit (EXIT_FAILURE);
286 }
287
288 free (fname);
289 }
290
291 if (::thisnode && !strcmp (node->nodename, ::thisnode))
292 thisnode = node;
293 }
294 else if (!strcmp (var, "private-key"))
295 free (prikeyfile), prikeyfile = strdup (val);
296 else if (!strcmp (var, "ifpersist"))
297 {
298 parse_bool (ifpersist, "ifpersist", true, false);
299 }
300 else if (!strcmp (var, "ifname"))
301 free (ifname), ifname = strdup (val);
302 else if (!strcmp (var, "rekey"))
303 rekey = atoi (val);
304 else if (!strcmp (var, "keepalive"))
305 keepalive = atoi (val);
306 else if (!strcmp (var, "mtu"))
307 mtu = atoi (val);
308 else if (!strcmp (var, "if-up"))
309 free (script_if_up), script_if_up = strdup (val);
310 else if (!strcmp (var, "node-up"))
311 free (script_node_up), script_node_up = strdup (val);
312 else if (!strcmp (var, "node-down"))
313 free (script_node_down), script_node_down = strdup (val);
314 else if (!strcmp (var, "pid-file"))
315 free (pidfilename), pidfilename = strdup (val);
316 else if (!strcmp (var, "dns-forw-host"))
317 {
318#if ENABLE_DNS
319 free (dns_forw_host), dns_forw_host = strdup (val);
320#endif
321 }
322 else if (!strcmp (var, "dns-forw-port"))
323 {
324#if ENABLE_DNS
325 dns_forw_port = atoi (val);
326#endif
327 }
328 else if (!strcmp (var, "http-proxy-host"))
329 {
330#if ENABLE_HTTP_PROXY
331 free (proxy_host), proxy_host = strdup (val);
332#endif
333 }
334 else if (!strcmp (var, "http-proxy-port"))
335 {
336#if ENABLE_HTTP_PROXY
337 proxy_port = atoi (val);
338#endif
339 }
340 else if (!strcmp (var, "http-proxy-auth"))
341 {
342#if ENABLE_HTTP_PROXY
343 proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val));
344#endif
345 }
346
347 /* node-specific, non-defaultable */
348 else if (node != &default_node && !strcmp (var, "hostname"))
349 free (node->hostname), node->hostname = strdup (val);
350
351 /* node-specific, defaultable */
352 else if (!strcmp (var, "udp-port"))
353 node->udp_port = atoi (val);
354 else if (!strcmp (var, "tcp-port"))
355 node->tcp_port = atoi (val);
356 else if (!strcmp (var, "dns-port"))
357 {
358#if ENABLE_DNS
359 node->dns_port = atoi (val);
360#endif
361 }
362 else if (!strcmp (var, "dns-domain"))
363 {
364#if ENABLE_DNS
365 free (node->domain), node->domain = strdup (val);
366#endif
367 }
368 else if (!strcmp (var, "router-priority"))
369 node->routerprio = atoi (val);
370 else if (!strcmp (var, "max-retry"))
371 node->max_retry = atoi (val);
372 else if (!strcmp (var, "connect"))
373 {
374 if (!strcmp (val, "ondemand"))
375 node->connectmode = conf_node::C_ONDEMAND;
376 else if (!strcmp (val, "never"))
377 node->connectmode = conf_node::C_NEVER;
378 else if (!strcmp (val, "always"))
379 node->connectmode = conf_node::C_ALWAYS;
380 else if (!strcmp (val, "disabled"))
381 node->connectmode = conf_node::C_DISABLED;
382 else
383 slog (L_WARN,
384 _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
385 var, fname, lineno);
386 }
387 else if (!strcmp (var, "inherit-tos"))
388 {
389 parse_bool (node->inherit_tos, "inherit-tos", true, false);
390 }
391 else if (!strcmp (var, "compress"))
392 {
393 parse_bool (node->compress, "compress", true, false);
394 }
395 // all these bool options really really cost a lot of executable size!
396 else if (!strcmp (var, "enable-tcp"))
397 {
398#if ENABLE_TCP
399 u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v;
400#endif
401 }
402 else if (!strcmp (var, "enable-icmp"))
403 {
404#if ENABLE_ICMP
405 u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v;
406#endif
407 }
408 else if (!strcmp (var, "enable-dns"))
409 {
410#if ENABLE_DNS
411 u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) | v;
412#endif
413 }
414 else if (!strcmp (var, "enable-udp"))
415 {
416 u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v;
417 }
418 else if (!strcmp (var, "enable-rawip"))
419 {
420 u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v;
421 }
422
423 // unknown or misplaced
424 else
425 slog (L_WARN,
426 _("unknown or misplaced variable `%s', at '%s' line %d"),
427 var, fname, lineno);
428 }
429
430 fclose (f);
431 }
432 else
433 {
434 slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
435 exit (EXIT_FAILURE);
436 }
437
438 free (fname);
439
440 fname = config_filename (prikeyfile, "hostkey");
441
442 f = fopen (fname, "r");
443 if (f)
444 {
445 rsa_key = RSA_new ();
446
447 if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))
448 {
449 ERR_load_RSA_strings (); ERR_load_PEM_strings ();
450 slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
451 exit (EXIT_FAILURE);
452 }
453
454 require (RSA_blinding_on (rsa_key, 0));
455
456 fclose (f);
457 }
458 else
459 {
460 slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
461
462 if (need_keys)
463 exit (EXIT_FAILURE);
464 }
465
466 if (need_keys && ::thisnode
467 && rsa_key && thisnode && thisnode->rsa_key)
468 if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0
469 || BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0)
470 {
471 slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
472 exit (EXIT_FAILURE);
473 }
474
475 free (fname);
476}
477
478char *configuration::config_filename (const char *name, const char *dflt)
479{
480 char *fname;
481
482 asprintf (&fname, name ? name : dflt, ::thisnode);
483
484 if (!ABSOLUTE_PATH (fname))
485 {
486 char *rname = fname;
487 asprintf (&fname, "%s/%s", confbase, rname);
488 free (rname);
489 }
490
491 return fname;
492}
493
494void
495configuration::print ()
496{
497 printf (_("\nConfiguration\n\n"));
498 printf (_("# of nodes: %d\n"), nodes.size ());
499 printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>");
500 printf (_("MTU: %d\n"), mtu);
501 printf (_("rekeying interval: %d\n"), rekey);
502 printf (_("keepalive interval: %d\n"), keepalive);
503 printf (_("interface: %s\n"), ifname);
504 printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
505 printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
506 printf ("\n");
507
508 printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
509 _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
510
511 for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
512 (*i)->print ();
513
514 printf ("\n");
515}
516
517configuration::configuration ()
518{
519 asprintf (&confbase, "%s/gvpe", CONFDIR);
520
521 init ();
522}
523
524configuration::~configuration ()
525{
526 cleanup ();
527}
528
529

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