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/cvs/gvpe/src/gvpectrl.C
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Comparing gvpe/src/gvpectrl.C (file contents):
Revision 1.10 by root, Tue Feb 8 23:11:36 2011 UTC vs.
Revision 1.19 by root, Wed Jun 29 22:36:23 2016 UTC

1/* 1/*
2 gvpectrl.C -- the main file for gvpectrl 2 gvpectrl.C -- the main file for gvpectrl
3 Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl> 3 Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl>
4 2000-2002 Guus Sliepen <guus@sliepen.eu.org> 4 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
5 2003-2008 Marc Lehmann <gvpe@schmorp.de> 5 2003-2013 Marc Lehmann <gvpe@schmorp.de>
6 6
7 This file is part of GVPE. 7 This file is part of GVPE.
8 8
9 GVPE is free software; you can redistribute it and/or modify it 9 GVPE is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published by the 10 under the terms of the GNU General Public License as published by the
… …
44#include <sys/stat.h> 44#include <sys/stat.h>
45#include <sys/types.h> 45#include <sys/types.h>
46#include <unistd.h> 46#include <unistd.h>
47#include <signal.h> 47#include <signal.h>
48 48
49#include <openssl/bn.h>
49#include <openssl/rand.h> 50#include <openssl/rand.h>
50#include <openssl/rsa.h> 51#include <openssl/rsa.h>
51#include <openssl/pem.h> 52#include <openssl/pem.h>
52#include <openssl/evp.h> 53#include <openssl/evp.h>
53 54
… …
73/* If nonzero, do not output anything but warnings/errors/very unusual conditions */ 74/* If nonzero, do not output anything but warnings/errors/very unusual conditions */
74static int quiet; 75static int quiet;
75 76
76/* If nonzero, generate public/private keypair for this net. */ 77/* If nonzero, generate public/private keypair for this net. */
77static int generate_keys; 78static int generate_keys;
79
80// output some debugging info, interna constants &c
81static int debug_info;
78 82
79static struct option const long_options[] = 83static struct option const long_options[] =
80{ 84{
81 {"config", required_argument, NULL, 'c'}, 85 {"config", required_argument, NULL, 'c'},
82 {"kill", optional_argument, NULL, 'k'}, 86 {"kill", optional_argument, NULL, 'k'},
83 {"help", no_argument, &show_help, 1}, 87 {"help", no_argument, &show_help, 1},
84 {"version", no_argument, &show_version, 1}, 88 {"version", no_argument, &show_version, 1},
85 {"generate-keys", no_argument, NULL, 'g'}, 89 {"generate-keys", no_argument, NULL, 'g'},
86 {"quiet", no_argument, &quiet, 1}, 90 {"quiet", no_argument, &quiet, 1},
87 {"show-config", no_argument, &show_config, 's'}, 91 {"show-config", no_argument, &show_config, 's'},
92 {"debug-info", no_argument, &debug_info, 1},
88 {NULL, 0, NULL, 0} 93 {NULL, 0, NULL, 0}
89}; 94};
90 95
91static void 96static void
92usage (int status) 97usage (int status)
… …
162 kill_gvpe = SIGTERM; 167 kill_gvpe = SIGTERM;
163 168
164 break; 169 break;
165 170
166 case 'g': /* generate public/private keypair */ 171 case 'g': /* generate public/private keypair */
167 generate_keys = RSA_KEYBITS; 172 generate_keys = RSABITS;
168 break; 173 break;
169 174
170 case 's': 175 case 's':
171 show_config = 1; 176 show_config = 1;
172 break; 177 break;
… …
183 } 188 }
184 } 189 }
185} 190}
186 191
187// this function prettyprints the key generation process 192// this function prettyprints the key generation process
188static void 193static int
189indicator (int a, int b, void *p) 194indicator (int a, int b, BN_GENCB *cb)
190{ 195{
191 if (quiet) 196 if (quiet)
192 return; 197 return 1;
193 198
194 switch (a) 199 switch (a)
195 { 200 {
196 case 0: 201 case 0:
197 fprintf (stderr, "."); 202 fprintf (stderr, ".");
… …
222 break; 227 break;
223 228
224 default: 229 default:
225 fprintf (stderr, "?"); 230 fprintf (stderr, "?");
226 } 231 }
232
233 return 1;
227} 234}
228 235
229/* 236/*
230 * generate public/private RSA keypairs for all hosts that don't have one. 237 * generate public/private RSA keypairs for all hosts that don't have one.
231 */ 238 */
232static int 239static int
233keygen (int bits) 240keygen (int bits)
234{ 241{
235 RSA *rsa_key; 242 FILE *f, *pubf;
236 FILE *f;
237 char *name = NULL;
238 char *fname; 243 char *fname;
239
240 asprintf (&fname, "%s/hostkeys", confbase);
241 mkdir (fname, 0700);
242 free (fname);
243 244
244 asprintf (&fname, "%s/pubkey", confbase); 245 asprintf (&fname, "%s/pubkey", confbase);
245 mkdir (fname, 0700); 246 mkdir (fname, 0700);
246 free (fname); 247 free (fname);
247 248
248 for (configuration::node_vector::iterator i = conf.nodes.begin (); i != conf.nodes.end (); ++i) 249 for (configuration::node_vector::iterator i = conf.nodes.begin (); i != conf.nodes.end (); ++i)
249 { 250 {
250 conf_node *node = *i; 251 conf_node *node = *i;
251 252
252 asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); 253 ::thisnode = node->nodename;
253 254
255 fname = conf.config_filename (conf.prikeyfile, "hostkey");
256
254 f = fopen (fname, "a"); 257 f = fopen (fname, "ab");
255 258
256 if (!f) 259 /* some libcs are buggy and require an extra seek to the end */
260 if (!f || fseek (f, 0, SEEK_END))
257 { 261 {
258 perror (fname); 262 perror (fname);
259 exit (EXIT_FAILURE); 263 exit (EXIT_FAILURE);
260 } 264 }
261 265
262 if (ftell (f)) 266 if (ftell (f))
263 { 267 {
264 if (!quiet) 268 if (!quiet)
265 fprintf (stderr, "'%s' already exists, skipping this node %d\n", 269 fprintf (stderr, "'%s' already exists, skipping node %s\n", fname, node->nodename);
266 fname, quiet);
267 270
271 free (fname);
268 fclose (f); 272 fclose (f);
269 continue; 273 continue;
270 } 274 }
271 275
272 fprintf (stderr, _("generating %d bits key for %s:\n"), bits,
273 node->nodename);
274
275 rsa_key = RSA_generate_key (bits, 0xFFFF, indicator, NULL);
276
277 if (!rsa_key)
278 {
279 fprintf (stderr, _("error during key generation!\n"));
280 return -1;
281 }
282 else
283 fprintf (stderr, _("Done.\n"));
284
285 require (PEM_write_RSAPublicKey (f, rsa_key));
286 fclose (f);
287 free (fname); 276 free (fname);
288 277
289 asprintf (&fname, "%s/hostkeys/%s", confbase, node->nodename); 278 fprintf (stderr, _("generating %d bits key for %s:\n"), bits, node->nodename);
290 279
280 RSA *rsa = RSA_new ();
281 BIGNUM *e = BN_new ();
282 BN_set_bit (e, 0); BN_set_bit (e, 16); // 0x10001, 65537
283
284#if OPENSSL_VERSION_NUMBER < 0x10100000
285 BN_GENCB cb;
286 BN_GENCB_set (&cb, indicator, 0);
287 require (RSA_generate_key_ex (rsa, bits, e, &cb));
288#else
289 BN_GENCB *cb = BN_GENCB_new ();
290 BN_GENCB_set (cb, indicator, 0);
291 require (RSA_generate_key_ex (rsa, bits, e, cb));
292#endif
293
294 fprintf (stderr, _("Done.\n"));
295
296 fname = conf.config_filename ("pubkey/%s", 0);
291 f = fopen (fname, "a"); 297 pubf = fopen (fname, "wb");
292 if (!f) 298 if (!pubf)
293 { 299 {
294 perror (fname); 300 perror (fname);
295 exit (EXIT_FAILURE); 301 exit (EXIT_FAILURE);
296 } 302 }
297 303
304 free (fname);
305
306 require (PEM_write_RSAPublicKey (pubf, rsa));
307 fclose (pubf);
308
298 require (PEM_write_RSAPrivateKey (f, rsa_key, NULL, NULL, 0, NULL, NULL)); 309 require (PEM_write_RSAPrivateKey (f, rsa, NULL, NULL, 0, NULL, NULL));
299 fclose (f); 310 fclose (f);
311
300 free (fname); 312 BN_free (e);
313 RSA_free (rsa);
301 } 314 }
302 315
303 return 0; 316 return 0;
304} 317}
305 318
… …
319 { 332 {
320 printf (_("%s version %s (built %s %s, protocol version %d.%d)\n"), get_identity (), 333 printf (_("%s version %s (built %s %s, protocol version %d.%d)\n"), get_identity (),
321 VERSION, __DATE__, __TIME__, PROTOCOL_MAJOR, PROTOCOL_MINOR); 334 VERSION, __DATE__, __TIME__, PROTOCOL_MAJOR, PROTOCOL_MINOR);
322 printf (_("Built with kernel interface %s/%s.\n"), IFTYPE, IFSUBTYPE); 335 printf (_("Built with kernel interface %s/%s.\n"), IFTYPE, IFSUBTYPE);
323 printf (_ 336 printf (_
324 ("Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> and others.\n" 337 ("Copyright (C) 2003-2013 Marc Lehmann <gvpe@schmorp.de> and others.\n"
325 "See the AUTHORS file for a complete list.\n\n" 338 "See the AUTHORS file for a complete list.\n\n"
326 "vpe comes with ABSOLUTELY NO WARRANTY. This is free software,\n" 339 "vpe comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
327 "and you are welcome to redistribute it under certain conditions;\n" 340 "and you are welcome to redistribute it under certain conditions;\n"
328 "see the file COPYING for details.\n")); 341 "see the file COPYING for details.\n"));
329 342
… …
335 348
336 { 349 {
337 configuration_parser (conf, false, 0, 0); 350 configuration_parser (conf, false, 0, 0);
338 } 351 }
339 352
353 if (debug_info)
354 {
355 printf ("cipher_nid=%d\n", EVP_CIPHER_nid (CIPHER ()));
356 printf ("mac_nid=%d\n", EVP_MD_type (MAC_DIGEST ()));
357 printf ("auth_nid=%d\n", EVP_MD_type (AUTH_DIGEST ()));
358 printf ("sizeof_auth_data=%d\n", sizeof (auth_data));
359 printf ("sizeof_rsa_data=%d\n", sizeof (rsa_data));
360 printf ("sizeof_rsa_data_extra_auth=%d\n", sizeof (((rsa_data *)0)->extra_auth));
361 printf ("raw_overhead=%d\n", VPE_OVERHEAD);
362 printf ("vpn_overhead=%d\n", VPE_OVERHEAD + 6 + 6);
363 printf ("udp_overhead=%d\n", UDP_OVERHEAD + VPE_OVERHEAD + 6 + 6);
364 exit (EXIT_SUCCESS);
365 }
366
340 if (generate_keys) 367 if (generate_keys)
341 { 368 {
342 RAND_load_file ("/dev/urandom", 1024); 369 RAND_load_file (conf.seed_dev, SEED_SIZE);
343 exit (keygen (generate_keys)); 370 exit (keygen (generate_keys));
344 } 371 }
345 372
346 if (kill_gvpe) 373 if (kill_gvpe)
347 exit (kill_other (kill_gvpe)); 374 exit (kill_other (kill_gvpe));
… …
352 exit (EXIT_SUCCESS); 379 exit (EXIT_SUCCESS);
353 } 380 }
354 381
355 usage (1); 382 usage (1);
356} 383}
384

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