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 #define KRB5_DEPRECATED /* uses v4 functions that will die */
  35
  36 #include "hprop.h"
  37
  38 RCSID("$Id$");
  39
  40 static int version_flag;
  41 static int help_flag;
  42 static const char *ktname = HPROP_KEYTAB;
  43 static const char *database;
  44 static char *mkeyfile;
  45 static int to_stdout;
  46 static int verbose_flag;
  47 static int encrypt_flag;
  48 static int decrypt_flag;
  49 static hdb_master_key mkey5;
  50
  51 static char *source_type;
  52
  53 static char *afs_cell;
  54 static char *v4_realm;
  55
  56 static int kaspecials_flag;
  57 static int ka_use_null_salt;
  58
  59 static char *local_realm=NULL;
  60
  61 static int
  62 open_socket(krb5_context context, const char *hostname, const char *port)
  63 {
  64     struct addrinfo *ai, *a;
  65     struct addrinfo hints;
  66     int error;
  67
  68     memset (&hints, 0, sizeof(hints));
  69     hints.ai_socktype = SOCK_STREAM;
  70     hints.ai_protocol = IPPROTO_TCP;
  71
  72     error = getaddrinfo (hostname, port, &hints, &ai);
  73     if (error) {
  74         warnx ("%s: %s", hostname, gai_strerror(error));
  75         return -1;
  76     }
  77
  78     for (a = ai; a != NULL; a = a->ai_next) {
  79         int s;
  80
  81         s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
  82         if (s < 0)
  83             continue;
  84         if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
  85             warn ("connect(%s)", hostname);
  86             close (s);
  87             continue;
  88         }
  89         freeaddrinfo (ai);
  90         return s;
  91     }
  92     warnx ("failed to contact %s", hostname);
  93     freeaddrinfo (ai);
  94     return -1;
  95 }
  96
  97 krb5_error_code
  98 v5_prop(krb5_context context, HDB *db, hdb_entry_ex *entry, void *appdata)
  99 {
 100     krb5_error_code ret;
 101     struct prop_data *pd = appdata;
 102     krb5_data data;
 103
 104     if(encrypt_flag) {
 105         ret = hdb_seal_keys_mkey(context, &entry->entry, mkey5);
 106         if (ret) {
 107             krb5_warn(context, ret, "hdb_seal_keys_mkey");
 108             return ret;
 109         }
 110     }
 111     if(decrypt_flag) {
 112         ret = hdb_unseal_keys_mkey(context, &entry->entry, mkey5);
 113         if (ret) {
 114             krb5_warn(context, ret, "hdb_unseal_keys_mkey");
 115             return ret;
 116         }
 117     }
 118
 119     ret = hdb_entry2value(context, &entry->entry, &data);
 120     if(ret) {
 121         krb5_warn(context, ret, "hdb_entry2value");
 122         return ret;
 123     }
 124
 125     if(to_stdout)
 126         ret = krb5_write_message(context, &pd->sock, &data);
 127     else
 128         ret = krb5_write_priv_message(context, pd->auth_context,
 129                                       &pd->sock, &data);
 130     krb5_data_free(&data);
 131     return ret;
 132 }
 133
 134 int
 135 v4_prop(void *arg, struct v4_principal *p)
 136 {
 137     struct prop_data *pd = arg;
 138     hdb_entry_ex ent;
 139     krb5_error_code ret;
 140
 141     memset(&ent, 0, sizeof(ent));
 142
 143     ret = krb5_425_conv_principal(pd->context, p->name, p->instance, v4_realm,
 144                                   &ent.entry.principal);
 145     if(ret) {
 146         krb5_warn(pd->context, ret,
 147                   "krb5_425_conv_principal %s.%s@%s",
 148                   p->name, p->instance, v4_realm);
 149         return 0;
 150     }
 151
 152     if(verbose_flag) {
 153         char *s;
 154         krb5_unparse_name_short(pd->context, ent.entry.principal, &s);
 155         krb5_warnx(pd->context, "%s.%s -> %s", p->name, p->instance, s);
 156         free(s);
 157     }
 158
 159     ent.entry.kvno = p->kvno;
 160     ent.entry.keys.len = 3;
 161     ent.entry.keys.val = malloc(ent.entry.keys.len * sizeof(*ent.entry.keys.val));
 162     if (ent.entry.keys.val == NULL)
 163         krb5_errx(pd->context, ENOMEM, "malloc");
 164     if(p->mkvno != -1) {
 165         ent.entry.keys.val[0].mkvno = malloc (sizeof(*ent.entry.keys.val[0].mkvno));
 166         if (ent.entry.keys.val[0].mkvno == NULL)
 167             krb5_errx(pd->context, ENOMEM, "malloc");
 168         *(ent.entry.keys.val[0].mkvno) = p->mkvno;
 169     } else
 170         ent.entry.keys.val[0].mkvno = NULL;
 171     ent.entry.keys.val[0].salt = calloc(1, sizeof(*ent.entry.keys.val[0].salt));
 172     if (ent.entry.keys.val[0].salt == NULL)
 173         krb5_errx(pd->context, ENOMEM, "calloc");
 174     ent.entry.keys.val[0].salt->type = KRB5_PADATA_PW_SALT;
 175     ent.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 176     krb5_data_alloc(&ent.entry.keys.val[0].key.keyvalue, DES_KEY_SZ);
 177     memcpy(ent.entry.keys.val[0].key.keyvalue.data, p->key, 8);
 178
 179     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[1]);
 180     ent.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 181     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[2]);
 182     ent.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 183
 184     {
 185         int life = _krb5_krb_life_to_time(0, p->max_life);
 186         if(life == NEVERDATE){
 187             ent.entry.max_life = NULL;
 188         } else {
 189             /* clean up lifetime a bit */
 190             if(life > 86400)
 191                 life = (life + 86399) / 86400 * 86400;
 192             else if(life > 3600)
 193                 life = (life + 3599) / 3600 * 3600;
 194             ALLOC(ent.entry.max_life);
 195             *ent.entry.max_life = life;
 196         }
 197     }
 198
 199     ALLOC(ent.entry.valid_end);
 200     *ent.entry.valid_end = p->exp_date;
 201
 202     ret = krb5_make_principal(pd->context, &ent.entry.created_by.principal,
 203                               v4_realm,
 204                               "kadmin",
 205                               "hprop",
 206                               NULL);
 207     if(ret){
 208         krb5_warn(pd->context, ret, "krb5_make_principal");
 209         ret = 0;
 210         goto out;
 211     }
 212     ent.entry.created_by.time = time(NULL);
 213     ALLOC(ent.entry.modified_by);
 214     ret = krb5_425_conv_principal(pd->context, p->mod_name, p->mod_instance,
 215                                   v4_realm, &ent.entry.modified_by->principal);
 216     if(ret){
 217         krb5_warn(pd->context, ret, "%s.%s@%s", p->name, p->instance, v4_realm);
 218         ent.entry.modified_by->principal = NULL;
 219         ret = 0;
 220         goto out;
 221     }
 222     ent.entry.modified_by->time = p->mod_date;
 223
 224     ent.entry.flags.forwardable = 1;
 225     ent.entry.flags.renewable = 1;
 226     ent.entry.flags.proxiable = 1;
 227     ent.entry.flags.postdate = 1;
 228     ent.entry.flags.client = 1;
 229     ent.entry.flags.server = 1;
 230
 231     /* special case password changing service */
 232     if(strcmp(p->name, "changepw") == 0 &&
 233        strcmp(p->instance, "kerberos") == 0) {
 234         ent.entry.flags.forwardable = 0;
 235         ent.entry.flags.renewable = 0;
 236         ent.entry.flags.proxiable = 0;
 237         ent.entry.flags.postdate = 0;
 238         ent.entry.flags.initial = 1;
 239         ent.entry.flags.change_pw = 1;
 240     }
 241
 242     ret = v5_prop(pd->context, NULL, &ent, pd);
 243
 244     if (strcmp (p->name, "krbtgt") == 0
 245         && strcmp (v4_realm, p->instance) != 0) {
 246         krb5_free_principal (pd->context, ent.entry.principal);
 247         ret = krb5_425_conv_principal (pd->context, p->name,
 248                                        v4_realm, p->instance,
 249                                        &ent.entry.principal);
 250         if (ret == 0)
 251             ret = v5_prop (pd->context, NULL, &ent, pd);
 252     }
 253
 254   out:
 255     hdb_free_entry(pd->context, &ent);
 256     return ret;
 257 }
 258
 259 #include "kadb.h"
 260
 261 /* read a `ka_entry' from `fd' at offset `pos' */
 262 static void
 263 read_block(krb5_context context, int fd, int32_t pos, void *buf, size_t len)
 264 {
 265     krb5_error_code ret;
 266 #ifdef HAVE_PREAD
 267     if((ret = pread(fd, buf, len, 64 + pos)) < 0)
 268         krb5_err(context, 1, errno, "pread(%u)", 64 + pos);
 269 #else
 270     if(lseek(fd, 64 + pos, SEEK_SET) == (off_t)-1)
 271         krb5_err(context, 1, errno, "lseek(%u)", 64 + pos);
 272     ret = read(fd, buf, len);
 273     if(ret < 0)
 274         krb5_err(context, 1, errno, "read(%lu)", (unsigned long)len);
 275 #endif
 276     if(ret != len)
 277         krb5_errx(context, 1, "read(%lu) = %u", (unsigned long)len, ret);
 278 }
 279
 280 static int
 281 ka_convert(struct prop_data *pd, int fd, struct ka_entry *ent)
 282 {
 283     int32_t flags = ntohl(ent->flags);
 284     krb5_error_code ret;
 285     hdb_entry_ex hdb;
 286
 287     if(!kaspecials_flag
 288        && (flags & KAFNORMAL) == 0) /* remove special entries */
 289         return 0;
 290     memset(&hdb, 0, sizeof(hdb));
 291     ret = krb5_425_conv_principal(pd->context, ent->name, ent->instance,
 292                                   v4_realm, &hdb.entry.principal);
 293     if(ret) {
 294         krb5_warn(pd->context, ret,
 295                   "krb5_425_conv_principal (%s.%s@%s)",
 296                   ent->name, ent->instance, v4_realm);
 297         return 0;
 298     }
 299     hdb.entry.kvno = ntohl(ent->kvno);
 300     hdb.entry.keys.len = 3;
 301     hdb.entry.keys.val =
 302         malloc(hdb.entry.keys.len * sizeof(*hdb.entry.keys.val));
 303     if (hdb.entry.keys.val == NULL)
 304         krb5_errx(pd->context, ENOMEM, "malloc");
 305     hdb.entry.keys.val[0].mkvno = NULL;
 306     hdb.entry.keys.val[0].salt = calloc(1, sizeof(*hdb.entry.keys.val[0].salt));
 307     if (hdb.entry.keys.val[0].salt == NULL)
 308         krb5_errx(pd->context, ENOMEM, "calloc");
 309     if (ka_use_null_salt) {
 310         hdb.entry.keys.val[0].salt->type = hdb_pw_salt;
 311         hdb.entry.keys.val[0].salt->salt.data = NULL;
 312         hdb.entry.keys.val[0].salt->salt.length = 0;
 313     } else {
 314         hdb.entry.keys.val[0].salt->type = hdb_afs3_salt;
 315         hdb.entry.keys.val[0].salt->salt.data = strdup(afs_cell);
 316         if (hdb.entry.keys.val[0].salt->salt.data == NULL)
 317             krb5_errx(pd->context, ENOMEM, "strdup");
 318         hdb.entry.keys.val[0].salt->salt.length = strlen(afs_cell);
 319     }
 320
 321     hdb.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 322     krb5_data_copy(&hdb.entry.keys.val[0].key.keyvalue,
 323                    ent->key,
 324                    sizeof(ent->key));
 325     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[1]);
 326     hdb.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 327     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[2]);
 328     hdb.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 329
 330     ALLOC(hdb.entry.max_life);
 331     *hdb.entry.max_life = ntohl(ent->max_life);
 332
 333     if(ntohl(ent->valid_end) != NEVERDATE && ntohl(ent->valid_end) != 0xffffffff) {
 334         ALLOC(hdb.entry.valid_end);
 335         *hdb.entry.valid_end = ntohl(ent->valid_end);
 336     }
 337
 338     if (ntohl(ent->pw_change) != NEVERDATE &&
 339         ent->pw_expire != 255 &&
 340         ent->pw_expire != 0) {
 341         ALLOC(hdb.entry.pw_end);
 342         *hdb.entry.pw_end = ntohl(ent->pw_change)
 343             + 24 * 60 * 60 * ent->pw_expire;
 344     }
 345
 346     ret = krb5_make_principal(pd->context, &hdb.entry.created_by.principal,
 347                               v4_realm,
 348                               "kadmin",
 349                               "hprop",
 350                               NULL);
 351     hdb.entry.created_by.time = time(NULL);
 352
 353     if(ent->mod_ptr){
 354         struct ka_entry mod;
 355         ALLOC(hdb.entry.modified_by);
 356         read_block(pd->context, fd, ntohl(ent->mod_ptr), &mod, sizeof(mod));
 357
 358         krb5_425_conv_principal(pd->context, mod.name, mod.instance, v4_realm,
 359                                 &hdb.entry.modified_by->principal);
 360         hdb.entry.modified_by->time = ntohl(ent->mod_time);
 361         memset(&mod, 0, sizeof(mod));
 362     }
 363
 364     hdb.entry.flags.forwardable = 1;
 365     hdb.entry.flags.renewable = 1;
 366     hdb.entry.flags.proxiable = 1;
 367     hdb.entry.flags.postdate = 1;
 368     /* XXX - AFS 3.4a creates krbtgt.REALMOFCELL as NOTGS+NOSEAL */
 369     if (strcmp(ent->name, "krbtgt") == 0 &&
 370         (flags & (KAFNOTGS|KAFNOSEAL)) == (KAFNOTGS|KAFNOSEAL))
 371         flags &= ~(KAFNOTGS|KAFNOSEAL);
 372
 373     hdb.entry.flags.client = (flags & KAFNOTGS) == 0;
 374     hdb.entry.flags.server = (flags & KAFNOSEAL) == 0;
 375
 376     ret = v5_prop(pd->context, NULL, &hdb, pd);
 377     hdb_free_entry(pd->context, &hdb);
 378     return ret;
 379 }
 380
 381 static int
 382 ka_dump(struct prop_data *pd, const char *file)
 383 {
 384     struct ka_header header;
 385     int i;
 386     int fd = open(file, O_RDONLY);
 387
 388     if(fd < 0)
 389         krb5_err(pd->context, 1, errno, "open(%s)", file);
 390     read_block(pd->context, fd, 0, &header, sizeof(header));
 391     if(header.version1 != header.version2)
 392         krb5_errx(pd->context, 1, "Version mismatch in header: %ld/%ld",
 393                   (long)ntohl(header.version1), (long)ntohl(header.version2));
 394     if(ntohl(header.version1) != 5)
 395         krb5_errx(pd->context, 1, "Unknown database version %ld (expected 5)",
 396                   (long)ntohl(header.version1));
 397     for(i = 0; i < ntohl(header.hashsize); i++){
 398         int32_t pos = ntohl(header.hash[i]);
 399         while(pos){
 400             struct ka_entry ent;
 401             read_block(pd->context, fd, pos, &ent, sizeof(ent));
 402             ka_convert(pd, fd, &ent);
 403             pos = ntohl(ent.next);
 404         }
 405     }
 406     return 0;
 407 }
 408
 409
 410
 411 struct getargs args[] = {
 412     { "master-key", 'm', arg_string, &mkeyfile, "v5 master key file", "file" },
 413     { "database", 'd',  arg_string, &database, "database", "file" },
 414     { "source",   0,    arg_string, &source_type, "type of database to read",
 415       "heimdal"
 416       "|mit-dump"
 417       "|krb4-dump"
 418       "|kaserver"
 419     },
 420
 421     { "v4-realm", 'r',  arg_string, &v4_realm, "v4 realm to use" },
 422     { "cell",     'c',  arg_string, &afs_cell, "name of AFS cell" },
 423     { "kaspecials", 'S', arg_flag,   &kaspecials_flag, "dump KASPECIAL keys"},
 424     { "keytab",   'k',  arg_string, &ktname, "keytab to use for authentication", "keytab" },
 425     { "v5-realm", 'R',  arg_string, &local_realm, "v5 realm to use" },
 426     { "decrypt",  'D',  arg_flag,   &decrypt_flag,   "decrypt keys" },
 427     { "encrypt",  'E',  arg_flag,   &encrypt_flag,   "encrypt keys" },
 428     { "stdout",   'n',  arg_flag,   &to_stdout, "dump to stdout" },
 429     { "verbose",  'v',  arg_flag, &verbose_flag },
 430     { "version",   0,   arg_flag, &version_flag },
 431     { "help",     'h',  arg_flag, &help_flag }
 432 };
 433
 434 static int num_args = sizeof(args) / sizeof(args[0]);
 435
 436 static void
 437 usage(int ret)
 438 {
 439     arg_printusage (args, num_args, NULL, "[host[:port]] ...");
 440     exit (ret);
 441 }
 442
 443 static void
 444 get_creds(krb5_context context, krb5_ccache *cache)
 445 {
 446     krb5_keytab keytab;
 447     krb5_principal client;
 448     krb5_error_code ret;
 449     krb5_get_init_creds_opt *init_opts;
 450     krb5_preauthtype preauth = KRB5_PADATA_ENC_TIMESTAMP;
 451     krb5_creds creds;
 452
 453     ret = krb5_kt_register(context, &hdb_kt_ops);
 454     if(ret) krb5_err(context, 1, ret, "krb5_kt_register");
 455
 456     ret = krb5_kt_resolve(context, ktname, &keytab);
 457     if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve");
 458
 459     ret = krb5_make_principal(context, &client, NULL,
 460                               "kadmin", HPROP_NAME, NULL);
 461     if(ret) krb5_err(context, 1, ret, "krb5_make_principal");
 462
 463     ret = krb5_get_init_creds_opt_alloc(context, &init_opts);
 464     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
 465     krb5_get_init_creds_opt_set_preauth_list(init_opts, &preauth, 1);
 466
 467     ret = krb5_get_init_creds_keytab(context, &creds, client, keytab, 0, NULL, init_opts);
 468     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds");
 469
 470     krb5_get_init_creds_opt_free(context, init_opts);
 471
 472     ret = krb5_kt_close(context, keytab);
 473     if(ret) krb5_err(context, 1, ret, "krb5_kt_close");
 474
 475     ret = krb5_cc_new_unique(context, krb5_cc_type_memory, NULL, cache);
 476     if(ret) krb5_err(context, 1, ret, "krb5_cc_new_unique");
 477
 478     ret = krb5_cc_initialize(context, *cache, client);
 479     if(ret) krb5_err(context, 1, ret, "krb5_cc_initialize");
 480
 481     krb5_free_principal(context, client);
 482
 483     ret = krb5_cc_store_cred(context, *cache, &creds);
 484     if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
 485
 486     krb5_free_cred_contents(context, &creds);
 487 }
 488
 489 enum hprop_source {
 490     HPROP_HEIMDAL = 1,
 491     HPROP_KRB4_DUMP,
 492     HPROP_KASERVER,
 493     HPROP_MIT_DUMP
 494 };
 495
 496 #define IS_TYPE_V4(X) ((X) == HPROP_KRB4_DUMP || (X) == HPROP_KASERVER)
 497
 498 struct {
 499     int type;
 500     const char *name;
 501 } types[] = {
 502     { HPROP_HEIMDAL,    "heimdal" },
 503     { HPROP_KRB4_DUMP,  "krb4-dump" },
 504     { HPROP_KASERVER,   "kaserver" },
 505     { HPROP_MIT_DUMP,   "mit-dump" }
 506 };
 507
 508 static int
 509 parse_source_type(const char *s)
 510 {
 511     int i;
 512     for(i = 0; i < sizeof(types) / sizeof(types[0]); i++) {
 513         if(strstr(types[i].name, s) == types[i].name)
 514             return types[i].type;
 515     }
 516     return 0;
 517 }
 518
 519 static int
 520 iterate (krb5_context context,
 521          const char *database_name,
 522          HDB *db,
 523          int type,
 524          struct prop_data *pd)
 525 {
 526     int ret;
 527
 528     switch(type) {
 529     case HPROP_KRB4_DUMP:
 530         ret = v4_prop_dump(pd, database_name);
 531         if(ret)
 532             krb5_warn(context, ret, "v4_prop_dump");
 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_warn(context, ret, "mit_prop_dump");
 543         break;
 544     case HPROP_HEIMDAL:
 545         ret = hdb_foreach(context, db, HDB_F_DECRYPT, v5_prop, pd);
 546         if(ret)
 547             krb5_warn(context, ret, "hdb_foreach");
 548         break;
 549     default:
 550         krb5_errx(context, 1, "unknown prop type: %d", type);
 551     }
 552     return ret;
 553 }
 554
 555 static int
 556 dump_database (krb5_context context, int type,
 557                const char *database_name, HDB *db)
 558 {
 559     krb5_error_code ret;
 560     struct prop_data pd;
 561     krb5_data data;
 562
 563     pd.context      = context;
 564     pd.auth_context = NULL;
 565     pd.sock         = STDOUT_FILENO;
 566
 567     ret = iterate (context, database_name, db, type, &pd);
 568     if (ret)
 569         krb5_errx(context, 1, "iterate failure");
 570     krb5_data_zero (&data);
 571     ret = krb5_write_message (context, &pd.sock, &data);
 572     if (ret)
 573         krb5_err(context, 1, ret, "krb5_write_message");
 574
 575     return 0;
 576 }
 577
 578 static int
 579 propagate_database (krb5_context context, int type,
 580                     const char *database_name,
 581                     HDB *db, krb5_ccache ccache,
 582                     int optidx, int argc, char **argv)
 583 {
 584     krb5_principal server;
 585     krb5_error_code ret;
 586     int i, failed = 0;
 587
 588     for(i = optidx; i < argc; i++){
 589         krb5_auth_context auth_context;
 590         int fd;
 591         struct prop_data pd;
 592         krb5_data data;
 593
 594         char *port, portstr[NI_MAXSERV];
 595         char *host = argv[i];
 596
 597         port = strchr(host, ':');
 598         if(port == NULL) {
 599             snprintf(portstr, sizeof(portstr), "%u",
 600                      ntohs(krb5_getportbyname (context, "hprop", "tcp",
 601                                                HPROP_PORT)));
 602             port = portstr;
 603         } else
 604             *port++ = '\0';
 605
 606         fd = open_socket(context, host, port);
 607         if(fd < 0) {
 608             failed++;
 609             krb5_warn (context, errno, "connect %s", host);
 610             continue;
 611         }
 612
 613         ret = krb5_sname_to_principal(context, argv[i],
 614                                       HPROP_NAME, KRB5_NT_SRV_HST, &server);
 615         if(ret) {
 616             failed++;
 617             krb5_warn(context, ret, "krb5_sname_to_principal(%s)", host);
 618             close(fd);
 619             continue;
 620         }
 621
 622         if (local_realm) {
 623             krb5_realm my_realm;
 624             krb5_get_default_realm(context,&my_realm);
 625             krb5_principal_set_realm(context,server,my_realm);
 626             krb5_xfree(my_realm);
 627         }
 628
 629         auth_context = NULL;
 630         ret = krb5_sendauth(context,
 631                             &auth_context,
 632                             &fd,
 633                             HPROP_VERSION,
 634                             NULL,
 635                             server,
 636                             AP_OPTS_MUTUAL_REQUIRED | AP_OPTS_USE_SUBKEY,
 637                             NULL, /* in_data */
 638                             NULL, /* in_creds */
 639                             ccache,
 640                             NULL,
 641                             NULL,
 642                             NULL);
 643
 644         krb5_free_principal(context, server);
 645
 646         if(ret) {
 647             failed++;
 648             krb5_warn(context, ret, "krb5_sendauth (%s)", host);
 649             close(fd);
 650             goto next_host;
 651         }
 652
 653         pd.context      = context;
 654         pd.auth_context = auth_context;
 655         pd.sock         = fd;
 656
 657         ret = iterate (context, database_name, db, type, &pd);
 658         if (ret) {
 659             krb5_warnx(context, "iterate to host %s failed", host);
 660             failed++;
 661             goto next_host;
 662         }
 663
 664         krb5_data_zero (&data);
 665         ret = krb5_write_priv_message(context, auth_context, &fd, &data);
 666         if(ret) {
 667             krb5_warn(context, ret, "krb5_write_priv_message");
 668             failed++;
 669             goto next_host;
 670         }
 671
 672         ret = krb5_read_priv_message(context, auth_context, &fd, &data);
 673         if(ret) {
 674             krb5_warn(context, ret, "krb5_read_priv_message: %s", host);
 675             failed++;
 676             goto next_host;
 677         } else
 678             krb5_data_free (&data);
 679
 680     next_host:
 681         krb5_auth_con_free(context, auth_context);
 682         close(fd);
 683     }
 684     if (failed)
 685         return 1;
 686     return 0;
 687 }
 688
 689 int
 690 main(int argc, char **argv)
 691 {
 692     krb5_error_code ret;
 693     krb5_context context;
 694     krb5_ccache ccache = NULL;
 695     HDB *db = NULL;
 696     int optidx = 0;
 697
 698     int type, exit_code;
 699
 700     setprogname(argv[0]);
 701
 702     if(getarg(args, num_args, argc, argv, &optidx))
 703         usage(1);
 704
 705     if(help_flag)
 706         usage(0);
 707
 708     if(version_flag){
 709         print_version(NULL);
 710         exit(0);
 711     }
 712
 713     ret = krb5_init_context(&context);
 714     if(ret)
 715         exit(1);
 716
 717     if(local_realm)
 718         krb5_set_default_realm(context, local_realm);
 719
 720     if(v4_realm == NULL) {
 721         ret = krb5_get_default_realm(context, &v4_realm);
 722         if(ret)
 723             krb5_err(context, 1, ret, "krb5_get_default_realm");
 724     }
 725
 726     if(afs_cell == NULL) {
 727         afs_cell = strdup(v4_realm);
 728         if(afs_cell == NULL)
 729             krb5_errx(context, 1, "out of memory");
 730         strlwr(afs_cell);
 731     }
 732
 733
 734     if(encrypt_flag && decrypt_flag)
 735         krb5_errx(context, 1,
 736                   "only one of `--encrypt' and `--decrypt' is meaningful");
 737
 738     if(source_type != NULL) {
 739         type = parse_source_type(source_type);
 740         if(type == 0)
 741             krb5_errx(context, 1, "unknown source type `%s'", source_type);
 742     } else
 743         type = HPROP_HEIMDAL;
 744
 745     if(!to_stdout)
 746         get_creds(context, &ccache);
 747
 748     if(decrypt_flag || encrypt_flag) {
 749         ret = hdb_read_master_key(context, mkeyfile, &mkey5);
 750         if(ret && ret != ENOENT)
 751             krb5_err(context, 1, ret, "hdb_read_master_key");
 752         if(ret)
 753             krb5_errx(context, 1, "No master key file found");
 754     }
 755
 756     if (IS_TYPE_V4(type) && v4_realm == NULL)
 757         krb5_errx(context, 1, "Its a Kerberos 4 database "
 758                   "but no realm configured");
 759
 760     switch(type) {
 761     case HPROP_KASERVER:
 762         if (database == NULL)
 763             database = DEFAULT_DATABASE;
 764         ka_use_null_salt = krb5_config_get_bool_default(context, NULL, FALSE,
 765                                                         "hprop",
 766                                                         "afs_uses_null_salt",
 767                                                         NULL);
 768
 769         break;
 770     case HPROP_KRB4_DUMP:
 771         if (database == NULL)
 772             krb5_errx(context, 1, "no dump file specified");
 773
 774         break;
 775     case HPROP_MIT_DUMP:
 776         if (database == NULL)
 777             krb5_errx(context, 1, "no dump file specified");
 778         break;
 779     case HPROP_HEIMDAL:
 780         ret = hdb_create (context, &db, database);
 781         if(ret)
 782             krb5_err(context, 1, ret, "hdb_create: %s", database);
 783         ret = db->hdb_open(context, db, O_RDONLY, 0);
 784         if(ret)
 785             krb5_err(context, 1, ret, "db->hdb_open");
 786         break;
 787     default:
 788         krb5_errx(context, 1, "unknown dump type `%d'", type);
 789         break;
 790     }
 791
 792     if (to_stdout)
 793         exit_code = dump_database (context, type, database, db);
 794     else
 795         exit_code = propagate_database (context, type, database,
 796                                         db, ccache, optidx, argc, argv);
 797
 798     if(ccache != NULL)
 799         krb5_cc_destroy(context, ccache);
 800
 801     if(db != NULL)
 802         (*db->hdb_destroy)(context, db);
 803
 804     krb5_free_context(context);
 805     return exit_code;
 806 }