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 #ifdef KRB4
 135 int
 136 v4_prop(void *arg, struct v4_principal *p)
 137 {
 138     struct prop_data *pd = arg;
 139     hdb_entry_ex ent;
 140     krb5_error_code ret;
 141
 142     memset(&ent, 0, sizeof(ent));
 143
 144     ret = krb5_425_conv_principal(pd->context, p->name, p->instance, v4_realm,
 145                                   &ent.entry.principal);
 146     if(ret) {
 147         krb5_warn(pd->context, ret,
 148                   "krb5_425_conv_principal %s.%s@%s",
 149                   p->name, p->instance, v4_realm);
 150         return 0;
 151     }
 152
 153     if(verbose_flag) {
 154         char *s;
 155         krb5_unparse_name_short(pd->context, ent.entry.principal, &s);
 156         krb5_warnx(pd->context, "%s.%s -> %s", p->name, p->instance, s);
 157         free(s);
 158     }
 159
 160     ent.entry.kvno = p->kvno;
 161     ent.entry.keys.len = 3;
 162     ent.entry.keys.val = malloc(ent.entry.keys.len * sizeof(*ent.entry.keys.val));
 163     if (ent.entry.keys.val == NULL)
 164         krb5_errx(pd->context, ENOMEM, "malloc");
 165     if(p->mkvno != -1) {
 166         ent.entry.keys.val[0].mkvno = malloc (sizeof(*ent.entry.keys.val[0].mkvno));
 167         if (ent.entry.keys.val[0].mkvno == NULL)
 168             krb5_errx(pd->context, ENOMEM, "malloc");
 169         *(ent.entry.keys.val[0].mkvno) = p->mkvno;
 170     } else
 171         ent.entry.keys.val[0].mkvno = NULL;
 172     ent.entry.keys.val[0].salt = calloc(1, sizeof(*ent.entry.keys.val[0].salt));
 173     if (ent.entry.keys.val[0].salt == NULL)
 174         krb5_errx(pd->context, ENOMEM, "calloc");
 175     ent.entry.keys.val[0].salt->type = KRB5_PADATA_PW_SALT;
 176     ent.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 177     krb5_data_alloc(&ent.entry.keys.val[0].key.keyvalue, DES_KEY_SZ);
 178     memcpy(ent.entry.keys.val[0].key.keyvalue.data, p->key, 8);
 179
 180     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[1]);
 181     ent.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 182     copy_Key(&ent.entry.keys.val[0], &ent.entry.keys.val[2]);
 183     ent.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 184
 185     {
 186         int life = _krb5_krb_life_to_time(0, p->max_life);
 187         if(life == NEVERDATE){
 188             ent.entry.max_life = NULL;
 189         } else {
 190             /* clean up lifetime a bit */
 191             if(life > 86400)
 192                 life = (life + 86399) / 86400 * 86400;
 193             else if(life > 3600)
 194                 life = (life + 3599) / 3600 * 3600;
 195             ALLOC(ent.entry.max_life);
 196             *ent.entry.max_life = life;
 197         }
 198     }
 199
 200     ALLOC(ent.entry.valid_end);
 201     *ent.entry.valid_end = p->exp_date;
 202
 203     ret = krb5_make_principal(pd->context, &ent.entry.created_by.principal,
 204                               v4_realm,
 205                               "kadmin",
 206                               "hprop",
 207                               NULL);
 208     if(ret){
 209         krb5_warn(pd->context, ret, "krb5_make_principal");
 210         ret = 0;
 211         goto out;
 212     }
 213     ent.entry.created_by.time = time(NULL);
 214     ALLOC(ent.entry.modified_by);
 215     ret = krb5_425_conv_principal(pd->context, p->mod_name, p->mod_instance,
 216                                   v4_realm, &ent.entry.modified_by->principal);
 217     if(ret){
 218         krb5_warn(pd->context, ret, "%s.%s@%s", p->name, p->instance, v4_realm);
 219         ent.entry.modified_by->principal = NULL;
 220         ret = 0;
 221         goto out;
 222     }
 223     ent.entry.modified_by->time = p->mod_date;
 224
 225     ent.entry.flags.forwardable = 1;
 226     ent.entry.flags.renewable = 1;
 227     ent.entry.flags.proxiable = 1;
 228     ent.entry.flags.postdate = 1;
 229     ent.entry.flags.client = 1;
 230     ent.entry.flags.server = 1;
 231
 232     /* special case password changing service */
 233     if(strcmp(p->name, "changepw") == 0 &&
 234        strcmp(p->instance, "kerberos") == 0) {
 235         ent.entry.flags.forwardable = 0;
 236         ent.entry.flags.renewable = 0;
 237         ent.entry.flags.proxiable = 0;
 238         ent.entry.flags.postdate = 0;
 239         ent.entry.flags.initial = 1;
 240         ent.entry.flags.change_pw = 1;
 241     }
 242
 243     ret = v5_prop(pd->context, NULL, &ent, pd);
 244
 245     if (strcmp (p->name, "krbtgt") == 0
 246         && strcmp (v4_realm, p->instance) != 0) {
 247         krb5_free_principal (pd->context, ent.entry.principal);
 248         ret = krb5_425_conv_principal (pd->context, p->name,
 249                                        v4_realm, p->instance,
 250                                        &ent.entry.principal);
 251         if (ret == 0)
 252             ret = v5_prop (pd->context, NULL, &ent, pd);
 253     }
 254
 255   out:
 256     hdb_free_entry(pd->context, &ent);
 257     return ret;
 258 }
 259 #endif
 260
 261 #include "kadb.h"
 262
 263 /* read a `ka_entry' from `fd' at offset `pos' */
 264 static void
 265 read_block(krb5_context context, int fd, int32_t pos, void *buf, size_t len)
 266 {
 267     krb5_error_code ret;
 268 #ifdef HAVE_PREAD
 269     if((ret = pread(fd, buf, len, 64 + pos)) < 0)
 270         krb5_err(context, 1, errno, "pread(%u)", 64 + pos);
 271 #else
 272     if(lseek(fd, 64 + pos, SEEK_SET) == (off_t)-1)
 273         krb5_err(context, 1, errno, "lseek(%u)", 64 + pos);
 274     ret = read(fd, buf, len);
 275     if(ret < 0)
 276         krb5_err(context, 1, errno, "read(%lu)", (unsigned long)len);
 277 #endif
 278     if(ret != len)
 279         krb5_errx(context, 1, "read(%lu) = %u", (unsigned long)len, ret);
 280 }
 281
 282 #ifdef KRB4
 283
 284 static int
 285 ka_convert(struct prop_data *pd, int fd, struct ka_entry *ent)
 286 {
 287     int32_t flags = ntohl(ent->flags);
 288     krb5_error_code ret;
 289     hdb_entry_ex hdb;
 290
 291     if(!kaspecials_flag
 292        && (flags & KAFNORMAL) == 0) /* remove special entries */
 293         return 0;
 294     memset(&hdb, 0, sizeof(hdb));
 295     ret = krb5_425_conv_principal(pd->context, ent->name, ent->instance,
 296                                   v4_realm, &hdb.entry.principal);
 297     if(ret) {
 298         krb5_warn(pd->context, ret,
 299                   "krb5_425_conv_principal (%s.%s@%s)",
 300                   ent->name, ent->instance, v4_realm);
 301         return 0;
 302     }
 303     hdb.entry.kvno = ntohl(ent->kvno);
 304     hdb.entry.keys.len = 3;
 305     hdb.entry.keys.val =
 306         malloc(hdb.entry.keys.len * sizeof(*hdb.entry.keys.val));
 307     if (hdb.entry.keys.val == NULL)
 308         krb5_errx(pd->context, ENOMEM, "malloc");
 309     hdb.entry.keys.val[0].mkvno = NULL;
 310     hdb.entry.keys.val[0].salt = calloc(1, sizeof(*hdb.entry.keys.val[0].salt));
 311     if (hdb.entry.keys.val[0].salt == NULL)
 312         krb5_errx(pd->context, ENOMEM, "calloc");
 313     if (ka_use_null_salt) {
 314         hdb.entry.keys.val[0].salt->type = hdb_pw_salt;
 315         hdb.entry.keys.val[0].salt->salt.data = NULL;
 316         hdb.entry.keys.val[0].salt->salt.length = 0;
 317     } else {
 318         hdb.entry.keys.val[0].salt->type = hdb_afs3_salt;
 319         hdb.entry.keys.val[0].salt->salt.data = strdup(afs_cell);
 320         if (hdb.entry.keys.val[0].salt->salt.data == NULL)
 321             krb5_errx(pd->context, ENOMEM, "strdup");
 322         hdb.entry.keys.val[0].salt->salt.length = strlen(afs_cell);
 323     }
 324
 325     hdb.entry.keys.val[0].key.keytype = ETYPE_DES_CBC_MD5;
 326     krb5_data_copy(&hdb.entry.keys.val[0].key.keyvalue,
 327                    ent->key,
 328                    sizeof(ent->key));
 329     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[1]);
 330     hdb.entry.keys.val[1].key.keytype = ETYPE_DES_CBC_MD4;
 331     copy_Key(&hdb.entry.keys.val[0], &hdb.entry.keys.val[2]);
 332     hdb.entry.keys.val[2].key.keytype = ETYPE_DES_CBC_CRC;
 333
 334     ALLOC(hdb.entry.max_life);
 335     *hdb.entry.max_life = ntohl(ent->max_life);
 336
 337     if(ntohl(ent->valid_end) != NEVERDATE && ntohl(ent->valid_end) != 0xffffffff) {
 338         ALLOC(hdb.entry.valid_end);
 339         *hdb.entry.valid_end = ntohl(ent->valid_end);
 340     }
 341
 342     if (ntohl(ent->pw_change) != NEVERDATE &&
 343         ent->pw_expire != 255 &&
 344         ent->pw_expire != 0) {
 345         ALLOC(hdb.entry.pw_end);
 346         *hdb.entry.pw_end = ntohl(ent->pw_change)
 347             + 24 * 60 * 60 * ent->pw_expire;
 348     }
 349
 350     ret = krb5_make_principal(pd->context, &hdb.entry.created_by.principal,
 351                               v4_realm,
 352                               "kadmin",
 353                               "hprop",
 354                               NULL);
 355     hdb.entry.created_by.time = time(NULL);
 356
 357     if(ent->mod_ptr){
 358         struct ka_entry mod;
 359         ALLOC(hdb.entry.modified_by);
 360         read_block(pd->context, fd, ntohl(ent->mod_ptr), &mod, sizeof(mod));
 361
 362         krb5_425_conv_principal(pd->context, mod.name, mod.instance, v4_realm,
 363                                 &hdb.entry.modified_by->principal);
 364         hdb.entry.modified_by->time = ntohl(ent->mod_time);
 365         memset(&mod, 0, sizeof(mod));
 366     }
 367
 368     hdb.entry.flags.forwardable = 1;
 369     hdb.entry.flags.renewable = 1;
 370     hdb.entry.flags.proxiable = 1;
 371     hdb.entry.flags.postdate = 1;
 372     /* XXX - AFS 3.4a creates krbtgt.REALMOFCELL as NOTGS+NOSEAL */
 373     if (strcmp(ent->name, "krbtgt") == 0 &&
 374         (flags & (KAFNOTGS|KAFNOSEAL)) == (KAFNOTGS|KAFNOSEAL))
 375         flags &= ~(KAFNOTGS|KAFNOSEAL);
 376
 377     hdb.entry.flags.client = (flags & KAFNOTGS) == 0;
 378     hdb.entry.flags.server = (flags & KAFNOSEAL) == 0;
 379
 380     ret = v5_prop(pd->context, NULL, &hdb, pd);
 381     hdb_free_entry(pd->context, &hdb);
 382     return ret;
 383 }
 384
 385 static int
 386 ka_dump(struct prop_data *pd, const char *file)
 387 {
 388     struct ka_header header;
 389     int i;
 390     int fd = open(file, O_RDONLY);
 391
 392     if(fd < 0)
 393         krb5_err(pd->context, 1, errno, "open(%s)", file);
 394     read_block(pd->context, fd, 0, &header, sizeof(header));
 395     if(header.version1 != header.version2)
 396         krb5_errx(pd->context, 1, "Version mismatch in header: %ld/%ld",
 397                   (long)ntohl(header.version1), (long)ntohl(header.version2));
 398     if(ntohl(header.version1) != 5)
 399         krb5_errx(pd->context, 1, "Unknown database version %ld (expected 5)",
 400                   (long)ntohl(header.version1));
 401     for(i = 0; i < ntohl(header.hashsize); i++){
 402         int32_t pos = ntohl(header.hash[i]);
 403         while(pos){
 404             struct ka_entry ent;
 405             read_block(pd->context, fd, pos, &ent, sizeof(ent));
 406             ka_convert(pd, fd, &ent);
 407             pos = ntohl(ent.next);
 408         }
 409     }
 410     return 0;
 411 }
 412 #endif  /* KRB4 */
 413
 414
 415 struct getargs args[] = {
 416     { "master-key", 'm', arg_string, &mkeyfile, "v5 master key file", "file" },
 417     { "database", 'd',  arg_string, &database, "database", "file" },
 418     { "source",   0,    arg_string, &source_type, "type of database to read",
 419       "heimdal"
 420       "|mit-dump"
 421 #ifdef KRB4
 422       "|krb4-dump"
 423       "|kaserver"
 424 #endif
 425     },
 426
 427 #ifdef KRB4
 428     { "v4-realm", 'r',  arg_string, &v4_realm, "v4 realm to use" },
 429 #endif
 430     { "cell",     'c',  arg_string, &afs_cell, "name of AFS cell" },
 431 #ifdef KRB4
 432     { "kaspecials", 'S', arg_flag,   &kaspecials_flag, "dump KASPECIAL keys"},
 433 #endif
 434     { "keytab",   'k',  arg_string, &ktname, "keytab to use for authentication", "keytab" },
 435     { "v5-realm", 'R',  arg_string, &local_realm, "v5 realm to use" },
 436     { "decrypt",  'D',  arg_flag,   &decrypt_flag,   "decrypt keys" },
 437     { "encrypt",  'E',  arg_flag,   &encrypt_flag,   "encrypt keys" },
 438     { "stdout",   'n',  arg_flag,   &to_stdout, "dump to stdout" },
 439     { "verbose",  'v',  arg_flag, &verbose_flag },
 440     { "version",   0,   arg_flag, &version_flag },
 441     { "help",     'h',  arg_flag, &help_flag }
 442 };
 443
 444 static int num_args = sizeof(args) / sizeof(args[0]);
 445
 446 static void
 447 usage(int ret)
 448 {
 449     arg_printusage (args, num_args, NULL, "[host[:port]] ...");
 450     exit (ret);
 451 }
 452
 453 static void
 454 get_creds(krb5_context context, krb5_ccache *cache)
 455 {
 456     krb5_keytab keytab;
 457     krb5_principal client;
 458     krb5_error_code ret;
 459     krb5_get_init_creds_opt *init_opts;
 460     krb5_preauthtype preauth = KRB5_PADATA_ENC_TIMESTAMP;
 461     krb5_creds creds;
 462
 463     ret = krb5_kt_register(context, &hdb_kt_ops);
 464     if(ret) krb5_err(context, 1, ret, "krb5_kt_register");
 465
 466     ret = krb5_kt_resolve(context, ktname, &keytab);
 467     if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve");
 468
 469     ret = krb5_make_principal(context, &client, NULL,
 470                               "kadmin", HPROP_NAME, NULL);
 471     if(ret) krb5_err(context, 1, ret, "krb5_make_principal");
 472
 473     ret = krb5_get_init_creds_opt_alloc(context, &init_opts);
 474     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
 475     krb5_get_init_creds_opt_set_preauth_list(init_opts, &preauth, 1);
 476
 477     ret = krb5_get_init_creds_keytab(context, &creds, client, keytab, 0, NULL, init_opts);
 478     if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds");
 479
 480     krb5_get_init_creds_opt_free(context, init_opts);
 481
 482     ret = krb5_kt_close(context, keytab);
 483     if(ret) krb5_err(context, 1, ret, "krb5_kt_close");
 484
 485     ret = krb5_cc_new_unique(context, krb5_cc_type_memory, NULL, cache);
 486     if(ret) krb5_err(context, 1, ret, "krb5_cc_new_unique");
 487
 488     ret = krb5_cc_initialize(context, *cache, client);
 489     if(ret) krb5_err(context, 1, ret, "krb5_cc_initialize");
 490
 491     krb5_free_principal(context, client);
 492
 493     ret = krb5_cc_store_cred(context, *cache, &creds);
 494     if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
 495
 496     krb5_free_cred_contents(context, &creds);
 497 }
 498
 499 enum hprop_source {
 500     HPROP_HEIMDAL = 1,
 501     HPROP_KRB4_DUMP,
 502     HPROP_KASERVER,
 503     HPROP_MIT_DUMP
 504 };
 505
 506 #define IS_TYPE_V4(X) ((X) == HPROP_KRB4_DUMP || (X) == HPROP_KASERVER)
 507
 508 struct {
 509     int type;
 510     const char *name;
 511 } types[] = {
 512     { HPROP_HEIMDAL,    "heimdal" },
 513     { HPROP_KRB4_DUMP,  "krb4-dump" },
 514     { HPROP_KASERVER,   "kaserver" },
 515     { HPROP_MIT_DUMP,   "mit-dump" }
 516 };
 517
 518 static int
 519 parse_source_type(const char *s)
 520 {
 521     int i;
 522     for(i = 0; i < sizeof(types) / sizeof(types[0]); i++) {
 523         if(strstr(types[i].name, s) == types[i].name)
 524             return types[i].type;
 525     }
 526     return 0;
 527 }
 528
 529 static int
 530 iterate (krb5_context context,
 531          const char *database_name,
 532          HDB *db,
 533          int type,
 534          struct prop_data *pd)
 535 {
 536     int ret;
 537
 538     switch(type) {
 539 #ifdef KRB4
 540     case HPROP_KRB4_DUMP:
 541         ret = v4_prop_dump(pd, database_name);
 542         if(ret)
 543             krb5_warn(context, ret, "v4_prop_dump");
 544         break;
 545     case HPROP_KASERVER:
 546         ret = ka_dump(pd, database_name);
 547         if(ret)
 548             krb5_warn(context, ret, "ka_dump");
 549         break;
 550 #endif
 551     case HPROP_MIT_DUMP:
 552         ret = mit_prop_dump(pd, database_name);
 553         if (ret)
 554             krb5_warn(context, ret, "mit_prop_dump");
 555         break;
 556     case HPROP_HEIMDAL:
 557         ret = hdb_foreach(context, db, HDB_F_DECRYPT, v5_prop, pd);
 558         if(ret)
 559             krb5_warn(context, ret, "hdb_foreach");
 560         break;
 561     default:
 562         krb5_errx(context, 1, "unknown prop type: %d", type);
 563     }
 564     return ret;
 565 }
 566
 567 static int
 568 dump_database (krb5_context context, int type,
 569                const char *database_name, HDB *db)
 570 {
 571     krb5_error_code ret;
 572     struct prop_data pd;
 573     krb5_data data;
 574
 575     pd.context      = context;
 576     pd.auth_context = NULL;
 577     pd.sock         = STDOUT_FILENO;
 578
 579     ret = iterate (context, database_name, db, type, &pd);
 580     if (ret)
 581         krb5_errx(context, 1, "iterate failure");
 582     krb5_data_zero (&data);
 583     ret = krb5_write_message (context, &pd.sock, &data);
 584     if (ret)
 585         krb5_err(context, 1, ret, "krb5_write_message");
 586
 587     return 0;
 588 }
 589
 590 static int
 591 propagate_database (krb5_context context, int type,
 592                     const char *database_name,
 593                     HDB *db, krb5_ccache ccache,
 594                     int optidx, int argc, char **argv)
 595 {
 596     krb5_principal server;
 597     krb5_error_code ret;
 598     int i, failed = 0;
 599
 600     for(i = optidx; i < argc; i++){
 601         krb5_auth_context auth_context;
 602         int fd;
 603         struct prop_data pd;
 604         krb5_data data;
 605
 606         char *port, portstr[NI_MAXSERV];
 607         char *host = argv[i];
 608
 609         port = strchr(host, ':');
 610         if(port == NULL) {
 611             snprintf(portstr, sizeof(portstr), "%u",
 612                      ntohs(krb5_getportbyname (context, "hprop", "tcp",
 613                                                HPROP_PORT)));
 614             port = portstr;
 615         } else
 616             *port++ = '\0';
 617
 618         fd = open_socket(context, host, port);
 619         if(fd < 0) {
 620             failed++;
 621             krb5_warn (context, errno, "connect %s", host);
 622             continue;
 623         }
 624
 625         ret = krb5_sname_to_principal(context, argv[i],
 626                                       HPROP_NAME, KRB5_NT_SRV_HST, &server);
 627         if(ret) {
 628             failed++;
 629             krb5_warn(context, ret, "krb5_sname_to_principal(%s)", host);
 630             close(fd);
 631             continue;
 632         }
 633
 634         if (local_realm) {
 635             krb5_realm my_realm;
 636             krb5_get_default_realm(context,&my_realm);
 637             krb5_principal_set_realm(context,server,my_realm);
 638             krb5_xfree(my_realm);
 639         }
 640
 641         auth_context = NULL;
 642         ret = krb5_sendauth(context,
 643                             &auth_context,
 644                             &fd,
 645                             HPROP_VERSION,
 646                             NULL,
 647                             server,
 648                             AP_OPTS_MUTUAL_REQUIRED | AP_OPTS_USE_SUBKEY,
 649                             NULL, /* in_data */
 650                             NULL, /* in_creds */
 651                             ccache,
 652                             NULL,
 653                             NULL,
 654                             NULL);
 655
 656         krb5_free_principal(context, server);
 657
 658         if(ret) {
 659             failed++;
 660             krb5_warn(context, ret, "krb5_sendauth (%s)", host);
 661             close(fd);
 662             goto next_host;
 663         }
 664
 665         pd.context      = context;
 666         pd.auth_context = auth_context;
 667         pd.sock         = fd;
 668
 669         ret = iterate (context, database_name, db, type, &pd);
 670         if (ret) {
 671             krb5_warnx(context, "iterate to host %s failed", host);
 672             failed++;
 673             goto next_host;
 674         }
 675
 676         krb5_data_zero (&data);
 677         ret = krb5_write_priv_message(context, auth_context, &fd, &data);
 678         if(ret) {
 679             krb5_warn(context, ret, "krb5_write_priv_message");
 680             failed++;
 681             goto next_host;
 682         }
 683
 684         ret = krb5_read_priv_message(context, auth_context, &fd, &data);
 685         if(ret) {
 686             krb5_warn(context, ret, "krb5_read_priv_message: %s", host);
 687             failed++;
 688             goto next_host;
 689         } else
 690             krb5_data_free (&data);
 691
 692     next_host:
 693         krb5_auth_con_free(context, auth_context);
 694         close(fd);
 695     }
 696     if (failed)
 697         return 1;
 698     return 0;
 699 }
 700
 701 int
 702 main(int argc, char **argv)
 703 {
 704     krb5_error_code ret;
 705     krb5_context context;
 706     krb5_ccache ccache = NULL;
 707     HDB *db = NULL;
 708     int optidx = 0;
 709
 710     int type, exit_code;
 711
 712     setprogname(argv[0]);
 713
 714     if(getarg(args, num_args, argc, argv, &optidx))
 715         usage(1);
 716
 717     if(help_flag)
 718         usage(0);
 719
 720     if(version_flag){
 721         print_version(NULL);
 722         exit(0);
 723     }
 724
 725     ret = krb5_init_context(&context);
 726     if(ret)
 727         exit(1);
 728
 729     /* We may be reading an old database encrypted with a DES master key. */
 730     ret = krb5_allow_weak_crypto(context, 1);
 731     if(ret)
 732         krb5_err(context, 1, ret, "krb5_allow_weak_crypto");
 733
 734     if(local_realm)
 735         krb5_set_default_realm(context, local_realm);
 736
 737     if(v4_realm == NULL) {
 738         ret = krb5_get_default_realm(context, &v4_realm);
 739         if(ret)
 740             krb5_err(context, 1, ret, "krb5_get_default_realm");
 741     }
 742
 743     if(afs_cell == NULL) {
 744         afs_cell = strdup(v4_realm);
 745         if(afs_cell == NULL)
 746             krb5_errx(context, 1, "out of memory");
 747         strlwr(afs_cell);
 748     }
 749
 750
 751     if(encrypt_flag && decrypt_flag)
 752         krb5_errx(context, 1,
 753                   "only one of `--encrypt' and `--decrypt' is meaningful");
 754
 755     if(source_type != NULL) {
 756         type = parse_source_type(source_type);
 757         if(type == 0)
 758             krb5_errx(context, 1, "unknown source type `%s'", source_type);
 759     } else
 760         type = HPROP_HEIMDAL;
 761
 762     if(!to_stdout)
 763         get_creds(context, &ccache);
 764
 765     if(decrypt_flag || encrypt_flag) {
 766         ret = hdb_read_master_key(context, mkeyfile, &mkey5);
 767         if(ret && ret != ENOENT)
 768             krb5_err(context, 1, ret, "hdb_read_master_key");
 769         if(ret)
 770             krb5_errx(context, 1, "No master key file found");
 771     }
 772
 773     if (IS_TYPE_V4(type) && v4_realm == NULL)
 774         krb5_errx(context, 1, "Its a Kerberos 4 database "
 775                   "but no realm configured");
 776
 777     switch(type) {
 778     case HPROP_KASERVER:
 779         if (database == NULL)
 780             database = DEFAULT_DATABASE;
 781         ka_use_null_salt = krb5_config_get_bool_default(context, NULL, FALSE,
 782                                                         "hprop",
 783                                                         "afs_uses_null_salt",
 784                                                         NULL);
 785
 786         break;
 787     case HPROP_KRB4_DUMP:
 788         if (database == NULL)
 789             krb5_errx(context, 1, "no dump file specified");
 790
 791         break;
 792     case HPROP_MIT_DUMP:
 793         if (database == NULL)
 794             krb5_errx(context, 1, "no dump file specified");
 795         break;
 796     case HPROP_HEIMDAL:
 797         ret = hdb_create (context, &db, database);
 798         if(ret)
 799             krb5_err(context, 1, ret, "hdb_create: %s", database);
 800         ret = db->hdb_open(context, db, O_RDONLY, 0);
 801         if(ret)
 802             krb5_err(context, 1, ret, "db->hdb_open");
 803         break;
 804     default:
 805         krb5_errx(context, 1, "unknown dump type `%d'", type);
 806         break;
 807     }
 808
 809     if (to_stdout)
 810         exit_code = dump_database (context, type, database, db);
 811     else
 812         exit_code = propagate_database (context, type, database,
 813                                         db, ccache, optidx, argc, argv);
 814
 815     if(ccache != NULL)
 816         krb5_cc_destroy(context, ccache);
 817
 818     if(db != NULL)
 819         (*db->hdb_destroy)(context, db);
 820
 821     krb5_free_context(context);
 822     return exit_code;
 823 }