crypto/dist/heimdal/kdc/hprop.c

   1 /*
   2  * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "hprop.h"
  35
  36 __RCSID("$Heimdal: hprop.c 21745 2007-07-31 16:11:25Z lha $"
  37         "$NetBSD$");
  38
  39 static int version_flag;
  40 static int help_flag;
  41 static const char *ktname = HPROP_KEYTAB;
  42 static const char *database;
  43 static char *mkeyfile;
  44 static int to_stdout;
  45 static int verbose_flag;
  46 static int encrypt_flag;
  47 static int decrypt_flag;
  48 static hdb_master_key mkey5;
  49
  50 static char *source_type;
  51
  52 static char *afs_cell;
  53 static char *v4_realm;
  54
  55 static int kaspecials_flag;
  56 static int ka_use_null_salt;
  57
  58 static char *local_realm=NULL;
  59
  60 static int
  61 open_socket(krb5_context context, const char *hostname, const char *port)
  62 {
  63     struct addrinfo *ai, *a;
  64     struct addrinfo hints;
  65     int error;
  66
  67     memset (&hints, 0, sizeof(hints));
  68     hints.ai_socktype = SOCK_STREAM;
  69     hints.ai_protocol = IPPROTO_TCP;
  70
  71     error = getaddrinfo (hostname, port, &hints, &ai);
  72     if (error) {
  73         warnx ("%s: %s", hostname, gai_strerror(error));
  74         return -1;
  75     }
  76
  77     for (a = ai; a != NULL; a = a->ai_next) {
  78         int s;
  79
  80         s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
  81         if (s < 0)
  82             continue;
  83         if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
  84             warn ("connect(%s)", hostname);
  85             close (s);
  86             continue;
  87         }
  88         freeaddrinfo (ai);
  89         return s;
  90     }
  91     warnx ("failed to contact %s", hostname);
  92     freeaddrinfo (ai);
  93     return -1;
  94 }
  95
  96 krb5_error_code
  97 v5_prop(krb5_context context, HDB *db, hdb_entry_ex *entry, void *appdata)
  98 {
  99     krb5_error_code ret;
 100     struct prop_data *pd = appdata;
 101     krb5_data data;
 102
 103     if(encrypt_flag) {
 104         ret = hdb_seal_keys_mkey(context, &entry->entry, mkey5);
 105         if (ret) {
 106             krb5_warn(context, ret, "hdb_seal_keys_mkey");
 107             return ret;
 108         }
 109     }
 110     if(decrypt_flag) {
 111         ret = hdb_unseal_keys_mkey(context, &entry->entry, mkey5);
 112         if (ret) {
 113             krb5_warn(context, ret, "hdb_unseal_keys_mkey");
 114             return ret;
 115         }
 116     }
 117
 118     ret = hdb_entry2value(context, &entry->entry, &data);
 119     if(ret) {
 120         krb5_warn(context, ret, "hdb_entry2value");
 121         return ret;
 122     }
 123
 124     if(to_stdout)
 125         ret = krb5_write_message(context, &pd->sock, &data);
 126     else
 127         ret = krb5_write_priv_message(context, pd->auth_context,
 128                                       &pd->sock, &data);
 129     krb5_data_free(&data);
 130     return ret;
 131 }
 132
 133 int
 134 v4_prop(void *arg, struct v4_principal *p)
 135 {
 136     struct prop_data *pd = arg;
 137     hdb_entry_ex ent;
 138     krb5_error_code ret;
 139
 140     memset(&ent, 0, sizeof(ent));
 141
 142     ret = krb5_425_conv_principal(pd->context, p->name, p->instance, v4_realm,
 143                                   &ent.entry.principal);
 144     if(ret) {
 145         krb5_warn(pd->context, ret,
 146                   "krb5_425_conv_principal %s.%s@%s",
 147                   p->name, p->instance, v4_realm);
 148         return 0;
 149     }
 150
 151     if(verbose_flag) {
 152         char *s;
 153         krb5_unparse_name_short(pd->context, ent.entry.principal, &s);
 154         krb5_warnx(pd->context, "%s.%s -> %s", p->name, p->instance, s);
 155         free(s);
 156     }
 157
 158     ent.entry.kvno = p->kvno;
 159     ent.entry.keys.len = 3;
 160     ent.entry.keys.val = malloc(ent.entry.keys.len * sizeof(*ent.entry.keys.val));
 161     if (ent.entry.keys.val == NULL)
 162         krb5_errx(pd->context, ENOMEM, "malloc");
 163     if(p->mkvno != -1) {
 164         ent.entry.keys.val[0].mkvno = malloc (sizeof(*ent.entry.keys.val[0].mkvno));
 165         if (ent.entry.keys.val[0].mkvno == NULL)
 166             krb5_errx(pd->context, ENOMEM, "malloc");
 167         *(ent.entry.keys.val[0].mkvno) = p->mkvno;
 168     } else
 169         ent.entry.keys.val[0].mkvno = NULL;
 170     ent.entry.keys.val[0].salt = calloc(1, sizeof(*ent.entry.keys.val[0].salt));
 171     if (ent.entry.keys.val[0].salt == NULL)
 172         krb5_errx(pd->context, ENOMEM, "calloc");
 173     ent.entry.keys.val[0].salt->type = KRB5_PADATA_PW_SALT;
 174     ent.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 175     krb5_data_alloc(&ent.entry.keys.val[0].key.keyvalue, DES_KEY_SZ);
 176     memcpy(ent.entry.keys.val[0].key.keyvalue.data, p->key, 8);
 177
 178     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[1]);
 179     ent.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 180     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[2]);
 181     ent.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 182
 183     {
 184         int life = _krb5_krb_life_to_time(0, p->max_life);
 185         if(life == NEVERDATE){
 186             ent.entry.max_life = NULL;
 187         } else {
 188             /* clean up lifetime a bit */
 189             if(life > 86400)
 190                 life = (life + 86399) / 86400 * 86400;
 191             else if(life > 3600)
 192                 life = (life + 3599) / 3600 * 3600;
 193             ALLOC(ent.entry.max_life);
 194             *ent.entry.max_life = life;
 195         }
 196     }
 197
 198     ALLOC(ent.entry.valid_end);
 199     *ent.entry.valid_end = p->exp_date;
 200
 201     ret = krb5_make_principal(pd->context, &ent.entry.created_by.principal,
 202                               v4_realm,
 203                               "kadmin",
 204                               "hprop",
 205                               NULL);
 206     if(ret){
 207         krb5_warn(pd->context, ret, "krb5_make_principal");
 208         ret = 0;
 209         goto out;
 210     }
 211     ent.entry.created_by.time = time(NULL);
 212     ALLOC(ent.entry.modified_by);
 213     ret = krb5_425_conv_principal(pd->context, p->mod_name, p->mod_instance,
 214                                   v4_realm, &ent.entry.modified_by->principal);
 215     if(ret){
 216         krb5_warn(pd->context, ret, "%s.%s@%s", p->name, p->instance, v4_realm);
 217         ent.entry.modified_by->principal = NULL;
 218         ret = 0;
 219         goto out;
 220     }
 221     ent.entry.modified_by->time = p->mod_date;
 222
 223     ent.entry.flags.forwardable = 1;
 224     ent.entry.flags.renewable = 1;
 225     ent.entry.flags.proxiable = 1;
 226     ent.entry.flags.postdate = 1;
 227     ent.entry.flags.client = 1;
 228     ent.entry.flags.server = 1;
 229
 230     /* special case password changing service */
 231     if(strcmp(p->name, "changepw") == 0 &&
 232        strcmp(p->instance, "kerberos") == 0) {
 233         ent.entry.flags.forwardable = 0;
 234         ent.entry.flags.renewable = 0;
 235         ent.entry.flags.proxiable = 0;
 236         ent.entry.flags.postdate = 0;
 237         ent.entry.flags.initial = 1;
 238         ent.entry.flags.change_pw = 1;
 239     }
 240
 241     ret = v5_prop(pd->context, NULL, &ent, pd);
 242
 243     if (strcmp (p->name, "krbtgt") == 0
 244         && strcmp (v4_realm, p->instance) != 0) {
 245         krb5_free_principal (pd->context, ent.entry.principal);
 246         ret = krb5_425_conv_principal (pd->context, p->name,
 247                                        v4_realm, p->instance,
 248                                        &ent.entry.principal);
 249         if (ret == 0)
 250             ret = v5_prop (pd->context, NULL, &ent, pd);
 251     }
 252
 253   out:
 254     hdb_free_entry(pd->context, &ent);
 255     return ret;
 256 }
 257
 258 #include "kadb.h"
 259
 260 /* read a `ka_entry' from `fd' at offset `pos' */
 261 static void
 262 read_block(krb5_context context, int fd, int32_t pos, void *buf, size_t len)
 263 {
 264     krb5_error_code ret;
 265 #ifdef HAVE_PREAD
 266     if((ret = pread(fd, buf, len, 64 + pos)) < 0)
 267         krb5_err(context, 1, errno, "pread(%u)", 64 + pos);
 268 #else
 269     if(lseek(fd, 64 + pos, SEEK_SET) == (off_t)-1)
 270         krb5_err(context, 1, errno, "lseek(%u)", 64 + pos);
 271     ret = read(fd, buf, len);
 272     if(ret < 0)
 273         krb5_err(context, 1, errno, "read(%lu)", (unsigned long)len);
 274 #endif
 275     if(ret != len)
 276         krb5_errx(context, 1, "read(%lu) = %u", (unsigned long)len, ret);
 277 }
 278
 279 static int
 280 ka_convert(struct prop_data *pd, int fd, struct ka_entry *ent)
 281 {
 282     int32_t flags = ntohl(ent->flags);
 283     krb5_error_code ret;
 284     hdb_entry_ex hdb;
 285
 286     if(!kaspecials_flag
 287        && (flags & KAFNORMAL) == 0) /* remove special entries */
 288         return 0;
 289     memset(&hdb, 0, sizeof(hdb));
 290     ret = krb5_425_conv_principal(pd->context, ent->name, ent->instance,
 291                                   v4_realm, &hdb.entry.principal);
 292     if(ret) {
 293         krb5_warn(pd->context, ret,
 294                   "krb5_425_conv_principal (%s.%s@%s)",
 295                   ent->name, ent->instance, v4_realm);
 296         return 0;
 297     }
 298     hdb.entry.kvno = ntohl(ent->kvno);
 299     hdb.entry.keys.len = 3;
 300     hdb.entry.keys.val =
 301         malloc(hdb.entry.keys.len * sizeof(*hdb.entry.keys.val));
 302     if (hdb.entry.keys.val == NULL)
 303         krb5_errx(pd->context, ENOMEM, "malloc");
 304     hdb.entry.keys.val[0].mkvno = NULL;
 305     hdb.entry.keys.val[0].salt = calloc(1, sizeof(*hdb.entry.keys.val[0].salt));
 306     if (hdb.entry.keys.val[0].salt == NULL)
 307         krb5_errx(pd->context, ENOMEM, "calloc");
 308     if (ka_use_null_salt) {
 309         hdb.entry.keys.val[0].salt->type = hdb_pw_salt;
 310         hdb.entry.keys.val[0].salt->salt.data = NULL;
 311         hdb.entry.keys.val[0].salt->salt.length = 0;
 312     } else {
 313         hdb.entry.keys.val[0].salt->type = hdb_afs3_salt;
 314         hdb.entry.keys.val[0].salt->salt.data = strdup(afs_cell);
 315         if (hdb.entry.keys.val[0].salt->salt.data == NULL)
 316             krb5_errx(pd->context, ENOMEM, "strdup");
 317         hdb.entry.keys.val[0].salt->salt.length = strlen(afs_cell);
 318     }
 319
 320     hdb.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 321     krb5_data_copy(&hdb.entry.keys.val[0].key.keyvalue,
 322                    ent->key,
 323                    sizeof(ent->key));
 324     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[1]);
 325     hdb.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 326     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[2]);
 327     hdb.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 328
 329     ALLOC(hdb.entry.max_life);
 330     *hdb.entry.max_life = ntohl(ent->max_life);
 331
 332     if(ntohl(ent->valid_end) != NEVERDATE && ntohl(ent->valid_end) != 0xffffffff) {
 333         ALLOC(hdb.entry.valid_end);
 334         *hdb.entry.valid_end = ntohl(ent->valid_end);
 335     }
 336
 337     if (ntohl(ent->pw_change) != NEVERDATE &&
 338         ent->pw_expire != 255 &&
 339         ent->pw_expire != 0) {
 340         ALLOC(hdb.entry.pw_end);
 341         *hdb.entry.pw_end = ntohl(ent->pw_change)
 342             + 24 * 60 * 60 * ent->pw_expire;
 343     }
 344
 345     ret = krb5_make_principal(pd->context, &hdb.entry.created_by.principal,
 346                               v4_realm,
 347                               "kadmin",
 348                               "hprop",
 349                               NULL);
 350     hdb.entry.created_by.time = time(NULL);
 351
 352     if(ent->mod_ptr){
 353         struct ka_entry mod;
 354         ALLOC(hdb.entry.modified_by);
 355         read_block(pd->context, fd, ntohl(ent->mod_ptr), &mod, sizeof(mod));
 356
 357         krb5_425_conv_principal(pd->context, mod.name, mod.instance, v4_realm,
 358                                 &hdb.entry.modified_by->principal);
 359         hdb.entry.modified_by->time = ntohl(ent->mod_time);
 360         memset(&mod, 0, sizeof(mod));
 361     }
 362
 363     hdb.entry.flags.forwardable = 1;
 364     hdb.entry.flags.renewable = 1;
 365     hdb.entry.flags.proxiable = 1;
 366     hdb.entry.flags.postdate = 1;
 367     /* XXX - AFS 3.4a creates krbtgt.REALMOFCELL as NOTGS+NOSEAL */
 368     if (strcmp(ent->name, "krbtgt") == 0 &&
 369         (flags & (KAFNOTGS|KAFNOSEAL)) == (KAFNOTGS|KAFNOSEAL))
 370         flags &= ~(KAFNOTGS|KAFNOSEAL);
 371
 372     hdb.entry.flags.client = (flags & KAFNOTGS) == 0;
 373     hdb.entry.flags.server = (flags & KAFNOSEAL) == 0;
 374
 375     ret = v5_prop(pd->context, NULL, &hdb, pd);
 376     hdb_free_entry(pd->context, &hdb);
 377     return ret;
 378 }
 379
 380 static int
 381 ka_dump(struct prop_data *pd, const char *file)
 382 {
 383     struct ka_header header;
 384     int i;
 385     int fd = open(file, O_RDONLY);
 386
 387     if(fd < 0)
 388         krb5_err(pd->context, 1, errno, "open(%s)", file);
 389     read_block(pd->context, fd, 0, &header, sizeof(header));
 390     if(header.version1 != header.version2)
 391         krb5_errx(pd->context, 1, "Version mismatch in header: %ld/%ld",
 392                   (long)ntohl(header.version1), (long)ntohl(header.version2));
 393     if(ntohl(header.version1) != 5)
 394         krb5_errx(pd->context, 1, "Unknown database version %ld (expected 5)",
 395                   (long)ntohl(header.version1));
 396     for(i = 0; i < ntohl(header.hashsize); i++){
 397         int32_t pos = ntohl(header.hash[i]);
 398         while(pos){
 399             struct ka_entry ent;
 400             read_block(pd->context, fd, pos, &ent, sizeof(ent));
 401             ka_convert(pd, fd, &ent);
 402             pos = ntohl(ent.next);
 403         }
 404     }
 405     return 0;
 406 }
 407
 408
 409
 410 struct getargs args[] = {
 411     { "master-key", 'm', arg_string, &mkeyfile, "v5 master key file", "file" },
 412     { "database", 'd',  arg_string, &database, "database", "file" },
 413     { "source",   0,    arg_string, &source_type, "type of database to read",
 414       "heimdal"
 415       "|mit-dump"
 416       "|krb4-dump"
 417       "|kaserver"
 418     },
 419
 420     { "v4-realm", 'r',  arg_string, &v4_realm, "v4 realm to use" },
 421     { "cell",     'c',  arg_string, &afs_cell, "name of AFS cell" },
 422     { "kaspecials", 'S', arg_flag,   &kaspecials_flag, "dump KASPECIAL keys"},
 423     { "keytab",   'k',  arg_string, &ktname, "keytab to use for authentication", "keytab" },
 424     { "v5-realm", 'R',  arg_string, &local_realm, "v5 realm to use" },
 425     { "decrypt",  'D',  arg_flag,   &decrypt_flag,   "decrypt keys" },
 426     { "encrypt",  'E',  arg_flag,   &encrypt_flag,   "encrypt keys" },
 427     { "stdout",   'n',  arg_flag,   &to_stdout, "dump to stdout" },
 428     { "verbose",  'v',  arg_flag, &verbose_flag },
 429     { "version",   0,   arg_flag, &version_flag },
 430     { "help",     'h',  arg_flag, &help_flag }
 431 };
 432
 433 static int num_args = sizeof(args) / sizeof(args[0]);
 434
 435 static void
 436 usage(int ret)
 437 {
 438     arg_printusage (args, num_args, NULL, "[host[:port]] ...");
 439     exit (ret);
 440 }
 441
 442 static void
 443 get_creds(krb5_context context, krb5_ccache *cache)
 444 {
 445     krb5_keytab keytab;
 446     krb5_principal client;
 447     krb5_error_code ret;
 448     krb5_get_init_creds_opt *init_opts;
 449     krb5_preauthtype preauth = KRB5_PADATA_ENC_TIMESTAMP;
 450     krb5_creds creds;
 451
 452     ret = krb5_kt_register(context, &hdb_kt_ops);
 453     if(ret) krb5_err(context, 1, ret, "krb5_kt_register");
 454
 455     ret = krb5_kt_resolve(context, ktname, &keytab);
 456     if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve");
 457
 458     ret = krb5_make_principal(context, &client, NULL,
 459                               "kadmin", HPROP_NAME, NULL);
 460     if(ret) krb5_err(context, 1, ret, "krb5_make_principal");
 461
 462     ret = krb5_get_init_creds_opt_alloc(context, &init_opts);
 463     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
 464     krb5_get_init_creds_opt_set_preauth_list(init_opts, &preauth, 1);
 465
 466     ret = krb5_get_init_creds_keytab(context, &creds, client, keytab, 0, NULL, init_opts);
 467     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds");
 468
 469     krb5_get_init_creds_opt_free(context, init_opts);
 470
 471     ret = krb5_kt_close(context, keytab);
 472     if(ret) krb5_err(context, 1, ret, "krb5_kt_close");
 473
 474     ret = krb5_cc_gen_new(context, &krb5_mcc_ops, cache);
 475     if(ret) krb5_err(context, 1, ret, "krb5_cc_gen_new");
 476
 477     ret = krb5_cc_initialize(context, *cache, client);
 478     if(ret) krb5_err(context, 1, ret, "krb5_cc_initialize");
 479
 480     krb5_free_principal(context, client);
 481
 482     ret = krb5_cc_store_cred(context, *cache, &creds);
 483     if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
 484
 485     krb5_free_cred_contents(context, &creds);
 486 }
 487
 488 enum hprop_source {
 489     HPROP_HEIMDAL = 1,
 490     HPROP_KRB4_DUMP,
 491     HPROP_KASERVER,
 492     HPROP_MIT_DUMP
 493 };
 494
 495 #define IS_TYPE_V4(X) ((X) == HPROP_KRB4_DUMP || (X) == HPROP_KASERVER)
 496
 497 struct {
 498     int type;
 499     const char *name;
 500 } types[] = {
 501     { HPROP_HEIMDAL,    "heimdal" },
 502     { HPROP_KRB4_DUMP,  "krb4-dump" },
 503     { HPROP_KASERVER,   "kaserver" },
 504     { HPROP_MIT_DUMP,   "mit-dump" }
 505 };
 506
 507 static int
 508 parse_source_type(const char *s)
 509 {
 510     int i;
 511     for(i = 0; i < sizeof(types) / sizeof(types[0]); i++) {
 512         if(strstr(types[i].name, s) == types[i].name)
 513             return types[i].type;
 514     }
 515     return 0;
 516 }
 517
 518 static int
 519 iterate (krb5_context context,
 520          const char *database_name,
 521          HDB *db,
 522          int type,
 523          struct prop_data *pd)
 524 {
 525     int ret;
 526
 527     switch(type) {
 528     case HPROP_KRB4_DUMP:
 529         ret = v4_prop_dump(pd, database_name);
 530         if(ret)
 531             krb5_warnx(context, "v4_prop_dump: %s",
 532                        krb5_get_err_text(context, ret));
 533         break;
 534     case HPROP_KASERVER:
 535         ret = ka_dump(pd, database_name);
 536         if(ret)
 537             krb5_warn(context, ret, "ka_dump");
 538         break;
 539     case HPROP_MIT_DUMP:
 540         ret = mit_prop_dump(pd, database_name);
 541         if (ret)
 542             krb5_warnx(context, "mit_prop_dump: %s",
 543                       krb5_get_err_text(context, ret));
 544         break;
 545     case HPROP_HEIMDAL:
 546         ret = hdb_foreach(context, db, HDB_F_DECRYPT, v5_prop, pd);
 547         if(ret)
 548             krb5_warn(context, ret, "hdb_foreach");
 549         break;
 550     default:
 551         krb5_errx(context, 1, "unknown prop type: %d", type);
 552     }
 553     return ret;
 554 }
 555
 556 static int
 557 dump_database (krb5_context context, int type,
 558                const char *database_name, HDB *db)
 559 {
 560     krb5_error_code ret;
 561     struct prop_data pd;
 562     krb5_data data;
 563
 564     pd.context      = context;
 565     pd.auth_context = NULL;
 566     pd.sock         = STDOUT_FILENO;
 567
 568     ret = iterate (context, database_name, db, type, &pd);
 569     if (ret)
 570         krb5_errx(context, 1, "iterate failure");
 571     krb5_data_zero (&data);
 572     ret = krb5_write_message (context, &pd.sock, &data);
 573     if (ret)
 574         krb5_err(context, 1, ret, "krb5_write_message");
 575
 576     return 0;
 577 }
 578
 579 static int
 580 propagate_database (krb5_context context, int type,
 581                     const char *database_name,
 582                     HDB *db, krb5_ccache ccache,
 583                     int optidx, int argc, char **argv)
 584 {
 585     krb5_principal server;
 586     krb5_error_code ret;
 587     int i, failed = 0;
 588
 589     for(i = optidx; i < argc; i++){
 590         krb5_auth_context auth_context;
 591         int fd;
 592         struct prop_data pd;
 593         krb5_data data;
 594
 595         char *port, portstr[NI_MAXSERV];
 596         char *host = argv[i];
 597
 598         port = strchr(host, ':');
 599         if(port == NULL) {
 600             snprintf(portstr, sizeof(portstr), "%u",
 601                      ntohs(krb5_getportbyname (context, "hprop", "tcp",
 602                                                HPROP_PORT)));
 603             port = portstr;
 604         } else
 605             *port++ = '\0';
 606
 607         fd = open_socket(context, host, port);
 608         if(fd < 0) {
 609             failed++;
 610             krb5_warn (context, errno, "connect %s", host);
 611             continue;
 612         }
 613
 614         ret = krb5_sname_to_principal(context, argv[i],
 615                                       HPROP_NAME, KRB5_NT_SRV_HST, &server);
 616         if(ret) {
 617             failed++;
 618             krb5_warn(context, ret, "krb5_sname_to_principal(%s)", host);
 619             close(fd);
 620             continue;
 621         }
 622
 623         if (local_realm) {
 624             krb5_realm my_realm;
 625             krb5_get_default_realm(context,&my_realm);
 626
 627             free (*krb5_princ_realm(context, server));
 628             krb5_princ_set_realm(context,server,&my_realm);
 629         }
 630
 631         auth_context = NULL;
 632         ret = krb5_sendauth(context,
 633                             &auth_context,
 634                             &fd,
 635                             HPROP_VERSION,
 636                             NULL,
 637                             server,
 638                             AP_OPTS_MUTUAL_REQUIRED | AP_OPTS_USE_SUBKEY,
 639                             NULL, /* in_data */
 640                             NULL, /* in_creds */
 641                             ccache,
 642                             NULL,
 643                             NULL,
 644                             NULL);
 645
 646         krb5_free_principal(context, server);
 647
 648         if(ret) {
 649             failed++;
 650             krb5_warn(context, ret, "krb5_sendauth (%s)", host);
 651             close(fd);
 652             goto next_host;
 653         }
 654
 655         pd.context      = context;
 656         pd.auth_context = auth_context;
 657         pd.sock         = fd;
 658
 659         ret = iterate (context, database_name, db, type, &pd);
 660         if (ret) {
 661             krb5_warnx(context, "iterate to host %s failed", host);
 662             failed++;
 663             goto next_host;
 664         }
 665
 666         krb5_data_zero (&data);
 667         ret = krb5_write_priv_message(context, auth_context, &fd, &data);
 668         if(ret) {
 669             krb5_warn(context, ret, "krb5_write_priv_message");
 670             failed++;
 671             goto next_host;
 672         }
 673
 674         ret = krb5_read_priv_message(context, auth_context, &fd, &data);
 675         if(ret) {
 676             krb5_warn(context, ret, "krb5_read_priv_message: %s", host);
 677             failed++;
 678             goto next_host;
 679         } else
 680             krb5_data_free (&data);
 681
 682     next_host:
 683         krb5_auth_con_free(context, auth_context);
 684         close(fd);
 685     }
 686     if (failed)
 687         return 1;
 688     return 0;
 689 }
 690
 691 int
 692 main(int argc, char **argv)
 693 {
 694     krb5_error_code ret;
 695     krb5_context context;
 696     krb5_ccache ccache = NULL;
 697     HDB *db = NULL;
 698     int optidx = 0;
 699
 700     int type, exit_code;
 701
 702     setprogname(argv[0]);
 703
 704     if(getarg(args, num_args, argc, argv, &optidx))
 705         usage(1);
 706
 707     if(help_flag)
 708         usage(0);
 709
 710     if(version_flag){
 711         print_version(NULL);
 712         exit(0);
 713     }
 714
 715     ret = krb5_init_context(&context);
 716     if(ret)
 717         exit(1);
 718
 719     if(local_realm)
 720         krb5_set_default_realm(context, local_realm);
 721
 722     if(v4_realm == NULL) {
 723         ret = krb5_get_default_realm(context, &v4_realm);
 724         if(ret)
 725             krb5_err(context, 1, ret, "krb5_get_default_realm");
 726     }
 727
 728     if(afs_cell == NULL) {
 729         afs_cell = strdup(v4_realm);
 730         if(afs_cell == NULL)
 731             krb5_errx(context, 1, "out of memory");
 732         strlwr(afs_cell);
 733     }
 734
 735
 736     if(encrypt_flag && decrypt_flag)
 737         krb5_errx(context, 1,
 738                   "only one of `--encrypt' and `--decrypt' is meaningful");
 739
 740     if(source_type != NULL) {
 741         type = parse_source_type(source_type);
 742         if(type == 0)
 743             krb5_errx(context, 1, "unknown source type `%s'", source_type);
 744     } else
 745         type = HPROP_HEIMDAL;
 746
 747     if(!to_stdout)
 748         get_creds(context, &ccache);
 749
 750     if(decrypt_flag || encrypt_flag) {
 751         ret = hdb_read_master_key(context, mkeyfile, &mkey5);
 752         if(ret && ret != ENOENT)
 753             krb5_err(context, 1, ret, "hdb_read_master_key");
 754         if(ret)
 755             krb5_errx(context, 1, "No master key file found");
 756     }
 757
 758     if (IS_TYPE_V4(type) && v4_realm == NULL)
 759         krb5_errx(context, 1, "Its a Kerberos 4 database "
 760                   "but no realm configured");
 761
 762     switch(type) {
 763     case HPROP_KASERVER:
 764         if (database == NULL)
 765             database = DEFAULT_DATABASE;
 766         ka_use_null_salt = krb5_config_get_bool_default(context, NULL, FALSE,
 767                                                         "hprop",
 768                                                         "afs_uses_null_salt",
 769                                                         NULL);
 770
 771         break;
 772     case HPROP_KRB4_DUMP:
 773         if (database == NULL)
 774             krb5_errx(context, 1, "no dump file specified");
 775
 776         break;
 777     case HPROP_MIT_DUMP:
 778         if (database == NULL)
 779             krb5_errx(context, 1, "no dump file specified");
 780         break;
 781     case HPROP_HEIMDAL:
 782         ret = hdb_create (context, &db, database);
 783         if(ret)
 784             krb5_err(context, 1, ret, "hdb_create: %s", database);
 785         ret = db->hdb_open(context, db, O_RDONLY, 0);
 786         if(ret)
 787             krb5_err(context, 1, ret, "db->hdb_open");
 788         break;
 789     default:
 790         krb5_errx(context, 1, "unknown dump type `%d'", type);
 791         break;
 792     }
 793
 794     if (to_stdout)
 795         exit_code = dump_database (context, type, database, db);
 796     else
 797         exit_code = propagate_database (context, type, database,
 798                                         db, ccache, optidx, argc, argv);
 799
 800     if(ccache != NULL)
 801         krb5_cc_destroy(context, ccache);
 802
 803     if(db != NULL)
 804         (*db->hdb_destroy)(context, db);
 805
 806     krb5_free_context(context);
 807     return exit_code;
 808 }