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("$Id$");
  37
  38 static int version_flag;
  39 static int help_flag;
  40 static const char *ktname = HPROP_KEYTAB;
  41 static const char *database;
  42 static char *mkeyfile;
  43 static int to_stdout;
  44 static int verbose_flag;
  45 static int encrypt_flag;
  46 static int decrypt_flag;
  47 static hdb_master_key mkey5;
  48
  49 static char *source_type;
  50
  51 static char *afs_cell;
  52 static char *v4_realm;
  53
  54 static int kaspecials_flag;
  55 static int ka_use_null_salt;
  56
  57 static char *local_realm=NULL;
  58
  59 static int
  60 open_socket(krb5_context context, const char *hostname, const char *port)
  61 {
  62     struct addrinfo *ai, *a;
  63     struct addrinfo hints;
  64     int error;
  65
  66     memset (&hints, 0, sizeof(hints));
  67     hints.ai_socktype = SOCK_STREAM;
  68     hints.ai_protocol = IPPROTO_TCP;
  69
  70     error = getaddrinfo (hostname, port, &hints, &ai);
  71     if (error) {
  72         warnx ("%s: %s", hostname, gai_strerror(error));
  73         return -1;
  74     }
  75
  76     for (a = ai; a != NULL; a = a->ai_next) {
  77         int s;
  78
  79         s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
  80         if (s < 0)
  81             continue;
  82         if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
  83             warn ("connect(%s)", hostname);
  84             close (s);
  85             continue;
  86         }
  87         freeaddrinfo (ai);
  88         return s;
  89     }
  90     warnx ("failed to contact %s", hostname);
  91     freeaddrinfo (ai);
  92     return -1;
  93 }
  94
  95 krb5_error_code
  96 v5_prop(krb5_context context, HDB *db, hdb_entry_ex *entry, void *appdata)
  97 {
  98     krb5_error_code ret;
  99     struct prop_data *pd = appdata;
 100     krb5_data data;
 101
 102     if(encrypt_flag) {
 103         ret = hdb_seal_keys_mkey(context, &entry->entry, mkey5);
 104         if (ret) {
 105             krb5_warn(context, ret, "hdb_seal_keys_mkey");
 106             return ret;
 107         }
 108     }
 109     if(decrypt_flag) {
 110         ret = hdb_unseal_keys_mkey(context, &entry->entry, mkey5);
 111         if (ret) {
 112             krb5_warn(context, ret, "hdb_unseal_keys_mkey");
 113             return ret;
 114         }
 115     }
 116
 117     ret = hdb_entry2value(context, &entry->entry, &data);
 118     if(ret) {
 119         krb5_warn(context, ret, "hdb_entry2value");
 120         return ret;
 121     }
 122
 123     if(to_stdout)
 124         ret = krb5_write_message(context, &pd->sock, &data);
 125     else
 126         ret = krb5_write_priv_message(context, pd->auth_context,
 127                                       &pd->sock, &data);
 128     krb5_data_free(&data);
 129     return ret;
 130 }
 131
 132 int
 133 v4_prop(void *arg, struct v4_principal *p)
 134 {
 135     struct prop_data *pd = arg;
 136     hdb_entry_ex ent;
 137     krb5_error_code ret;
 138
 139     memset(&ent, 0, sizeof(ent));
 140
 141     ret = krb5_425_conv_principal(pd->context, p->name, p->instance, v4_realm,
 142                                   &ent.entry.principal);
 143     if(ret) {
 144         krb5_warn(pd->context, ret,
 145                   "krb5_425_conv_principal %s.%s@%s",
 146                   p->name, p->instance, v4_realm);
 147         return 0;
 148     }
 149
 150     if(verbose_flag) {
 151         char *s;
 152         krb5_unparse_name_short(pd->context, ent.entry.principal, &s);
 153         krb5_warnx(pd->context, "%s.%s -> %s", p->name, p->instance, s);
 154         free(s);
 155     }
 156
 157     ent.entry.kvno = p->kvno;
 158     ent.entry.keys.len = 3;
 159     ent.entry.keys.val = malloc(ent.entry.keys.len * sizeof(*ent.entry.keys.val));
 160     if (ent.entry.keys.val == NULL)
 161         krb5_errx(pd->context, ENOMEM, "malloc");
 162     if(p->mkvno != -1) {
 163         ent.entry.keys.val[0].mkvno = malloc (sizeof(*ent.entry.keys.val[0].mkvno));
 164         if (ent.entry.keys.val[0].mkvno == NULL)
 165             krb5_errx(pd->context, ENOMEM, "malloc");
 166         *(ent.entry.keys.val[0].mkvno) = p->mkvno;
 167     } else
 168         ent.entry.keys.val[0].mkvno = NULL;
 169     ent.entry.keys.val[0].salt = calloc(1, sizeof(*ent.entry.keys.val[0].salt));
 170     if (ent.entry.keys.val[0].salt == NULL)
 171         krb5_errx(pd->context, ENOMEM, "calloc");
 172     ent.entry.keys.val[0].salt->type = KRB5_PADATA_PW_SALT;
 173     ent.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 174     krb5_data_alloc(&ent.entry.keys.val[0].key.keyvalue, DES_KEY_SZ);
 175     memcpy(ent.entry.keys.val[0].key.keyvalue.data, p->key, 8);
 176
 177     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[1]);
 178     ent.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 179     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[2]);
 180     ent.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 181
 182     {
 183         int life = _krb5_krb_life_to_time(0, p->max_life);
 184         if(life == NEVERDATE){
 185             ent.entry.max_life = NULL;
 186         } else {
 187             /* clean up lifetime a bit */
 188             if(life > 86400)
 189                 life = (life + 86399) / 86400 * 86400;
 190             else if(life > 3600)
 191                 life = (life + 3599) / 3600 * 3600;
 192             ALLOC(ent.entry.max_life);
 193             *ent.entry.max_life = life;
 194         }
 195     }
 196
 197     ALLOC(ent.entry.valid_end);
 198     *ent.entry.valid_end = p->exp_date;
 199
 200     ret = krb5_make_principal(pd->context, &ent.entry.created_by.principal,
 201                               v4_realm,
 202                               "kadmin",
 203                               "hprop",
 204                               NULL);
 205     if(ret){
 206         krb5_warn(pd->context, ret, "krb5_make_principal");
 207         ret = 0;
 208         goto out;
 209     }
 210     ent.entry.created_by.time = time(NULL);
 211     ALLOC(ent.entry.modified_by);
 212     ret = krb5_425_conv_principal(pd->context, p->mod_name, p->mod_instance,
 213                                   v4_realm, &ent.entry.modified_by->principal);
 214     if(ret){
 215         krb5_warn(pd->context, ret, "%s.%s@%s", p->name, p->instance, v4_realm);
 216         ent.entry.modified_by->principal = NULL;
 217         ret = 0;
 218         goto out;
 219     }
 220     ent.entry.modified_by->time = p->mod_date;
 221
 222     ent.entry.flags.forwardable = 1;
 223     ent.entry.flags.renewable = 1;
 224     ent.entry.flags.proxiable = 1;
 225     ent.entry.flags.postdate = 1;
 226     ent.entry.flags.client = 1;
 227     ent.entry.flags.server = 1;
 228
 229     /* special case password changing service */
 230     if(strcmp(p->name, "changepw") == 0 &&
 231        strcmp(p->instance, "kerberos") == 0) {
 232         ent.entry.flags.forwardable = 0;
 233         ent.entry.flags.renewable = 0;
 234         ent.entry.flags.proxiable = 0;
 235         ent.entry.flags.postdate = 0;
 236         ent.entry.flags.initial = 1;
 237         ent.entry.flags.change_pw = 1;
 238     }
 239
 240     ret = v5_prop(pd->context, NULL, &ent, pd);
 241
 242     if (strcmp (p->name, "krbtgt") == 0
 243         && strcmp (v4_realm, p->instance) != 0) {
 244         krb5_free_principal (pd->context, ent.entry.principal);
 245         ret = krb5_425_conv_principal (pd->context, p->name,
 246                                        v4_realm, p->instance,
 247                                        &ent.entry.principal);
 248         if (ret == 0)
 249             ret = v5_prop (pd->context, NULL, &ent, pd);
 250     }
 251
 252   out:
 253     hdb_free_entry(pd->context, &ent);
 254     return ret;
 255 }
 256
 257 #include "kadb.h"
 258
 259 /* read a `ka_entry' from `fd' at offset `pos' */
 260 static void
 261 read_block(krb5_context context, int fd, int32_t pos, void *buf, size_t len)
 262 {
 263     krb5_error_code ret;
 264 #ifdef HAVE_PREAD
 265     if((ret = pread(fd, buf, len, 64 + pos)) < 0)
 266         krb5_err(context, 1, errno, "pread(%u)", 64 + pos);
 267 #else
 268     if(lseek(fd, 64 + pos, SEEK_SET) == (off_t)-1)
 269         krb5_err(context, 1, errno, "lseek(%u)", 64 + pos);
 270     ret = read(fd, buf, len);
 271     if(ret < 0)
 272         krb5_err(context, 1, errno, "read(%lu)", (unsigned long)len);
 273 #endif
 274     if(ret != len)
 275         krb5_errx(context, 1, "read(%lu) = %u", (unsigned long)len, ret);
 276 }
 277
 278 static int
 279 ka_convert(struct prop_data *pd, int fd, struct ka_entry *ent)
 280 {
 281     int32_t flags = ntohl(ent->flags);
 282     krb5_error_code ret;
 283     hdb_entry_ex hdb;
 284
 285     if(!kaspecials_flag
 286        && (flags & KAFNORMAL) == 0) /* remove special entries */
 287         return 0;
 288     memset(&hdb, 0, sizeof(hdb));
 289     ret = krb5_425_conv_principal(pd->context, ent->name, ent->instance,
 290                                   v4_realm, &hdb.entry.principal);
 291     if(ret) {
 292         krb5_warn(pd->context, ret,
 293                   "krb5_425_conv_principal (%s.%s@%s)",
 294                   ent->name, ent->instance, v4_realm);
 295         return 0;
 296     }
 297     hdb.entry.kvno = ntohl(ent->kvno);
 298     hdb.entry.keys.len = 3;
 299     hdb.entry.keys.val =
 300         malloc(hdb.entry.keys.len * sizeof(*hdb.entry.keys.val));
 301     if (hdb.entry.keys.val == NULL)
 302         krb5_errx(pd->context, ENOMEM, "malloc");
 303     hdb.entry.keys.val[0].mkvno = NULL;
 304     hdb.entry.keys.val[0].salt = calloc(1, sizeof(*hdb.entry.keys.val[0].salt));
 305     if (hdb.entry.keys.val[0].salt == NULL)
 306         krb5_errx(pd->context, ENOMEM, "calloc");
 307     if (ka_use_null_salt) {
 308         hdb.entry.keys.val[0].salt->type = hdb_pw_salt;
 309         hdb.entry.keys.val[0].salt->salt.data = NULL;
 310         hdb.entry.keys.val[0].salt->salt.length = 0;
 311     } else {
 312         hdb.entry.keys.val[0].salt->type = hdb_afs3_salt;
 313         hdb.entry.keys.val[0].salt->salt.data = strdup(afs_cell);
 314         if (hdb.entry.keys.val[0].salt->salt.data == NULL)
 315             krb5_errx(pd->context, ENOMEM, "strdup");
 316         hdb.entry.keys.val[0].salt->salt.length = strlen(afs_cell);
 317     }
 318
 319     hdb.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 320     krb5_data_copy(&hdb.entry.keys.val[0].key.keyvalue,
 321                    ent->key,
 322                    sizeof(ent->key));
 323     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[1]);
 324     hdb.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 325     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[2]);
 326     hdb.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 327
 328     ALLOC(hdb.entry.max_life);
 329     *hdb.entry.max_life = ntohl(ent->max_life);
 330
 331     if(ntohl(ent->valid_end) != NEVERDATE && ntohl(ent->valid_end) != 0xffffffff) {
 332         ALLOC(hdb.entry.valid_end);
 333         *hdb.entry.valid_end = ntohl(ent->valid_end);
 334     }
 335
 336     if (ntohl(ent->pw_change) != NEVERDATE &&
 337         ent->pw_expire != 255 &&
 338         ent->pw_expire != 0) {
 339         ALLOC(hdb.entry.pw_end);
 340         *hdb.entry.pw_end = ntohl(ent->pw_change)
 341             + 24 * 60 * 60 * ent->pw_expire;
 342     }
 343
 344     ret = krb5_make_principal(pd->context, &hdb.entry.created_by.principal,
 345                               v4_realm,
 346                               "kadmin",
 347                               "hprop",
 348                               NULL);
 349     hdb.entry.created_by.time = time(NULL);
 350
 351     if(ent->mod_ptr){
 352         struct ka_entry mod;
 353         ALLOC(hdb.entry.modified_by);
 354         read_block(pd->context, fd, ntohl(ent->mod_ptr), &mod, sizeof(mod));
 355
 356         krb5_425_conv_principal(pd->context, mod.name, mod.instance, v4_realm,
 357                                 &hdb.entry.modified_by->principal);
 358         hdb.entry.modified_by->time = ntohl(ent->mod_time);
 359         memset(&mod, 0, sizeof(mod));
 360     }
 361
 362     hdb.entry.flags.forwardable = 1;
 363     hdb.entry.flags.renewable = 1;
 364     hdb.entry.flags.proxiable = 1;
 365     hdb.entry.flags.postdate = 1;
 366     /* XXX - AFS 3.4a creates krbtgt.REALMOFCELL as NOTGS+NOSEAL */
 367     if (strcmp(ent->name, "krbtgt") == 0 &&
 368         (flags & (KAFNOTGS|KAFNOSEAL)) == (KAFNOTGS|KAFNOSEAL))
 369         flags &= ~(KAFNOTGS|KAFNOSEAL);
 370
 371     hdb.entry.flags.client = (flags & KAFNOTGS) == 0;
 372     hdb.entry.flags.server = (flags & KAFNOSEAL) == 0;
 373
 374     ret = v5_prop(pd->context, NULL, &hdb, pd);
 375     hdb_free_entry(pd->context, &hdb);
 376     return ret;
 377 }
 378
 379 static int
 380 ka_dump(struct prop_data *pd, const char *file)
 381 {
 382     struct ka_header header;
 383     int i;
 384     int fd = open(file, O_RDONLY);
 385
 386     if(fd < 0)
 387         krb5_err(pd->context, 1, errno, "open(%s)", file);
 388     read_block(pd->context, fd, 0, &header, sizeof(header));
 389     if(header.version1 != header.version2)
 390         krb5_errx(pd->context, 1, "Version mismatch in header: %ld/%ld",
 391                   (long)ntohl(header.version1), (long)ntohl(header.version2));
 392     if(ntohl(header.version1) != 5)
 393         krb5_errx(pd->context, 1, "Unknown database version %ld (expected 5)",
 394                   (long)ntohl(header.version1));
 395     for(i = 0; i < ntohl(header.hashsize); i++){
 396         int32_t pos = ntohl(header.hash[i]);
 397         while(pos){
 398             struct ka_entry ent;
 399             read_block(pd->context, fd, pos, &ent, sizeof(ent));
 400             ka_convert(pd, fd, &ent);
 401             pos = ntohl(ent.next);
 402         }
 403     }
 404     return 0;
 405 }
 406
 407
 408
 409 struct getargs args[] = {
 410     { "master-key", 'm', arg_string, &mkeyfile, "v5 master key file", "file" },
 411     { "database", 'd',  arg_string, &database, "database", "file" },
 412     { "source",   0,    arg_string, &source_type, "type of database to read",
 413       "heimdal"
 414       "|mit-dump"
 415       "|krb4-dump"
 416       "|kaserver"
 417     },
 418
 419     { "v4-realm", 'r',  arg_string, &v4_realm, "v4 realm to use" },
 420     { "cell",     'c',  arg_string, &afs_cell, "name of AFS cell" },
 421     { "kaspecials", 'S', arg_flag,   &kaspecials_flag, "dump KASPECIAL keys"},
 422     { "keytab",   'k',  arg_string, &ktname, "keytab to use for authentication", "keytab" },
 423     { "v5-realm", 'R',  arg_string, &local_realm, "v5 realm to use" },
 424     { "decrypt",  'D',  arg_flag,   &decrypt_flag,   "decrypt keys" },
 425     { "encrypt",  'E',  arg_flag,   &encrypt_flag,   "encrypt keys" },
 426     { "stdout",   'n',  arg_flag,   &to_stdout, "dump to stdout" },
 427     { "verbose",  'v',  arg_flag, &verbose_flag },
 428     { "version",   0,   arg_flag, &version_flag },
 429     { "help",     'h',  arg_flag, &help_flag }
 430 };
 431
 432 static int num_args = sizeof(args) / sizeof(args[0]);
 433
 434 static void
 435 usage(int ret)
 436 {
 437     arg_printusage (args, num_args, NULL, "[host[:port]] ...");
 438     exit (ret);
 439 }
 440
 441 static void
 442 get_creds(krb5_context context, krb5_ccache *cache)
 443 {
 444     krb5_keytab keytab;
 445     krb5_principal client;
 446     krb5_error_code ret;
 447     krb5_get_init_creds_opt *init_opts;
 448     krb5_preauthtype preauth = KRB5_PADATA_ENC_TIMESTAMP;
 449     krb5_creds creds;
 450
 451     ret = krb5_kt_register(context, &hdb_kt_ops);
 452     if(ret) krb5_err(context, 1, ret, "krb5_kt_register");
 453
 454     ret = krb5_kt_resolve(context, ktname, &keytab);
 455     if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve");
 456
 457     ret = krb5_make_principal(context, &client, NULL,
 458                               "kadmin", HPROP_NAME, NULL);
 459     if(ret) krb5_err(context, 1, ret, "krb5_make_principal");
 460
 461     ret = krb5_get_init_creds_opt_alloc(context, &init_opts);
 462     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
 463     krb5_get_init_creds_opt_set_preauth_list(init_opts, &preauth, 1);
 464
 465     ret = krb5_get_init_creds_keytab(context, &creds, client, keytab, 0, NULL, init_opts);
 466     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds");
 467
 468     krb5_get_init_creds_opt_free(context, init_opts);
 469
 470     ret = krb5_kt_close(context, keytab);
 471     if(ret) krb5_err(context, 1, ret, "krb5_kt_close");
 472
 473     ret = krb5_cc_gen_new(context, &krb5_mcc_ops, cache);
 474     if(ret) krb5_err(context, 1, ret, "krb5_cc_gen_new");
 475
 476     ret = krb5_cc_initialize(context, *cache, client);
 477     if(ret) krb5_err(context, 1, ret, "krb5_cc_initialize");
 478
 479     krb5_free_principal(context, client);
 480
 481     ret = krb5_cc_store_cred(context, *cache, &creds);
 482     if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
 483
 484     krb5_free_cred_contents(context, &creds);
 485 }
 486
 487 enum hprop_source {
 488     HPROP_HEIMDAL = 1,
 489     HPROP_KRB4_DUMP,
 490     HPROP_KASERVER,
 491     HPROP_MIT_DUMP
 492 };
 493
 494 #define IS_TYPE_V4(X) ((X) == HPROP_KRB4_DUMP || (X) == HPROP_KASERVER)
 495
 496 struct {
 497     int type;
 498     const char *name;
 499 } types[] = {
 500     { HPROP_HEIMDAL,    "heimdal" },
 501     { HPROP_KRB4_DUMP,  "krb4-dump" },
 502     { HPROP_KASERVER,   "kaserver" },
 503     { HPROP_MIT_DUMP,   "mit-dump" }
 504 };
 505
 506 static int
 507 parse_source_type(const char *s)
 508 {
 509     int i;
 510     for(i = 0; i < sizeof(types) / sizeof(types[0]); i++) {
 511         if(strstr(types[i].name, s) == types[i].name)
 512             return types[i].type;
 513     }
 514     return 0;
 515 }
 516
 517 static int
 518 iterate (krb5_context context,
 519          const char *database_name,
 520          HDB *db,
 521          int type,
 522          struct prop_data *pd)
 523 {
 524     int ret;
 525
 526     switch(type) {
 527     case HPROP_KRB4_DUMP:
 528         ret = v4_prop_dump(pd, database_name);
 529         if(ret)
 530             krb5_warnx(context, "v4_prop_dump: %s",
 531                        krb5_get_err_text(context, ret));
 532         break;
 533     case HPROP_KASERVER:
 534         ret = ka_dump(pd, database_name);
 535         if(ret)
 536             krb5_warn(context, ret, "ka_dump");
 537         break;
 538     case HPROP_MIT_DUMP:
 539         ret = mit_prop_dump(pd, database_name);
 540         if (ret)
 541             krb5_warnx(context, "mit_prop_dump: %s",
 542                       krb5_get_err_text(context, ret));
 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 }