1 /* 2 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 /* 9 * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 10 * 11 * Openvision retains the copyright to derivative works of 12 * this source code. Do *NOT* create a derivative of this 13 * source code before consulting with your legal department. 14 * Do *NOT* integrate *ANY* of this source code into another 15 * product before consulting with your legal department. 16 * 17 * For further information, read the top-level Openvision 18 * copyright which is contained in the top-level MIT Kerberos 19 * copyright. 20 * 21 * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 22 * 23 */ 24 25 26 /* 27 * admin/edit/kdb5_edit.c 28 * 29 * (C) Copyright 1990,1991, 1996 by the Massachusetts Institute of Technology. 30 * All Rights Reserved. 31 * 32 * Export of this software from the United States of America may 33 * require a specific license from the United States Government. 34 * It is the responsibility of any person or organization contemplating 35 * export to obtain such a license before exporting. 36 * 37 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 38 * distribute this software and its documentation for any purpose and 39 * without fee is hereby granted, provided that the above copyright 40 * notice appear in all copies and that both that copyright notice and 41 * this permission notice appear in supporting documentation, and that 42 * the name of M.I.T. not be used in advertising or publicity pertaining 43 * to distribution of the software without specific, written prior 44 * permission. Furthermore if you modify this software you must label 45 * your software as modified software and not distribute it in such a 46 * fashion that it might be confused with the original M.I.T. software. 47 * M.I.T. makes no representations about the suitability of 48 * this software for any purpose. It is provided "as is" without express 49 * or implied warranty. 50 * 51 * 52 * Edit a KDC database. 53 */ 54 55 /* 56 * Yes, I know this is a hack, but we need admin.h without including the 57 * rpc.h header. Additionally, our rpc.h header brings in 58 * a des.h header which causes other problems. 59 */ 60 #define _RPC_RPC_H 61 62 #include <stdio.h> 63 #define KDB5_DISPATCH 64 #define KRB5_KDB5_DBM__ 65 #include <k5-int.h> 66 /* #define these to avoid an indirection function; for future implementations, 67 these may be redirected from a dispatch table/routine */ 68 #define krb5_dbm_db_set_name krb5_db_set_name 69 #define krb5_dbm_db_set_nonblocking krb5_db_set_nonblocking 70 #define krb5_dbm_db_init krb5_db_init 71 #define krb5_dbm_db_get_age krb5_db_get_age 72 #define krb5_dbm_db_create krb5_db_create 73 #define krb5_dbm_db_rename krb5_db_rename 74 #define krb5_dbm_db_get_principal krb5_db_get_principal 75 #define krb5_dbm_db_free_principal krb5_db_free_principal 76 #define krb5_dbm_db_put_principal krb5_db_put_principal 77 #define krb5_dbm_db_delete_principal krb5_db_delete_principal 78 #define krb5_dbm_db_lock krb5_db_lock 79 #define krb5_dbm_db_unlock krb5_db_unlock 80 #define krb5_dbm_db_set_lockmode krb5_db_set_lockmode 81 #define krb5_dbm_db_close_database krb5_db_close_database 82 #define krb5_dbm_db_open_database krb5_db_open_database 83 84 #include <kadm5/admin.h> 85 #include <rpc/types.h> 86 #include <rpc/xdr.h> 87 #include <kadm5/adb.h> 88 #include <time.h> 89 #include <libintl.h> 90 #include <locale.h> 91 #include "kdb5_util.h" 92 93 char *Err_no_master_msg = "Master key not entered!\n"; 94 char *Err_no_database = "Database not currently opened!\n"; 95 96 /* 97 * XXX Ick, ick, ick. These global variables shouldn't be global.... 98 */ 99 char *mkey_password = 0; 100 101 /* 102 * I can't figure out any way for this not to be global, given how ss 103 * works. 104 */ 105 106 int exit_status = 0; 107 krb5_context util_context; 108 osa_adb_policy_t policy_db; 109 kadm5_config_params global_params; 110 111 usage() 112 { 113 fprintf(stderr, "%s: " 114 "kdb5_util cmd [-r realm] [-d dbname] [-k mkeytype] [-M mkeyname]\n" 115 "\t [-f] [stashfile] [-P password] [-m ] [cmd options]\n" 116 "\tcreate [-s]\n" 117 "\tdestroy \n" 118 "\tstash \n" 119 "\tdump [-old] [-ov] [-b6] [-verbose] [filename [princs...]]\n" 120 "\tload [-old] [-ov] [-b6] [-verbose] [-update] filename\n" 121 #ifdef SUNWOFF 122 "\tload_v4 [-t] [-n] [-v] [-K] [-s stashfile] inputfile\n" 123 #endif 124 "\tark [-e etype_list] principal\n", 125 gettext("Usage")); 126 exit(1); 127 } 128 129 krb5_keyblock master_key; 130 extern krb5_principal master_princ; 131 krb5_db_entry master_entry; 132 int valid_master_key = 0; 133 int close_policy_db = 0; 134 135 char *progname; 136 krb5_boolean manual_mkey = FALSE; 137 krb5_boolean dbactive = FALSE; 138 139 int kdb5_create(int, char **); 140 int kdb5_destroy(int, char **); 141 int kdb5_stash(int, char **); 142 int dump_db(int, char **); 143 int load_db(int, char **); 144 int open_db_and_mkey(); 145 int add_random_key(int, char **); 146 147 typedef int (*cmd_func)(int, char **); 148 149 struct _cmd_table { 150 char *name; 151 cmd_func func; 152 int opendb; 153 } cmd_table[] = { 154 "create", kdb5_create, 0, 155 "destroy", kdb5_destroy, 1, 156 "stash", kdb5_stash, 1, 157 "dump", dump_db, 1, 158 "load", load_db, 0, 159 "ark", add_random_key, 1, 160 NULL, NULL, 0, 161 }; 162 163 struct _cmd_table * 164 cmd_lookup(name) 165 char *name; 166 { 167 struct _cmd_table *cmd = cmd_table; 168 169 while (cmd->name) { 170 if (strcmp(cmd->name, name) == 0) 171 return (cmd); 172 else 173 cmd++; 174 } 175 176 return (NULL); 177 } 178 179 #define ARG_VAL (--argc > 0 ? (optarg = *(++argv)) : (char *)(usage(), NULL)) 180 181 int 182 main(argc, argv) 183 int argc; 184 char *argv[]; 185 { 186 struct _cmd_table *cmd = NULL; 187 char *optarg, **cmd_argv; 188 int cmd_argc; 189 krb5_error_code retval; 190 191 (void) setlocale(LC_ALL, ""); 192 193 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 194 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 195 #endif 196 197 (void) textdomain(TEXT_DOMAIN); 198 199 Err_no_master_msg = gettext("Master key not entered!\n"); 200 Err_no_database = gettext("Database not currently opened!\n"); 201 202 retval = krb5_init_context(&util_context); 203 if (retval) { 204 com_err (progname, retval, 205 gettext("while initializing Kerberos code")); 206 exit(1); 207 } 208 progname = (strrchr(argv[0], '/') ? 209 strrchr(argv[0], '/') + 1 : argv[0]); 210 211 cmd_argv = (char **) malloc(sizeof(char *)*argc); 212 if (cmd_argv == NULL) { 213 com_err(progname, ENOMEM, 214 gettext("while creating sub-command arguments")); 215 exit(1); 216 } 217 memset(cmd_argv, 0, sizeof(char *)*argc); 218 cmd_argc = 1; 219 220 argv++; 221 argc--; 222 while (*argv) { 223 if (strcmp(*argv, "-P") == 0 && ARG_VAL) { 224 mkey_password = optarg; 225 manual_mkey = TRUE; 226 } else if (strcmp(*argv, "-d") == 0 && ARG_VAL) { 227 global_params.dbname = optarg; 228 global_params.mask |= KADM5_CONFIG_DBNAME; 229 } else if (strcmp(*argv, "-r") == 0 && ARG_VAL) { 230 global_params.realm = optarg; 231 global_params.mask |= KADM5_CONFIG_REALM; 232 /* not sure this is really necessary */ 233 if ((retval = krb5_set_default_realm(util_context, 234 global_params.realm))) { 235 com_err(progname, retval, 236 gettext("while setting default " 237 "realm name")); 238 exit(1); 239 } 240 } else if (strcmp(*argv, "-k") == 0 && ARG_VAL) { 241 if (krb5_string_to_enctype(optarg, 242 &global_params.enctype)) 243 com_err(argv[0], 0, 244 gettext("%s is an invalid enctype"), 245 optarg); 246 else 247 global_params.mask |= KADM5_CONFIG_ENCTYPE; 248 } else if (strcmp(*argv, "-M") == 0 && ARG_VAL) { 249 global_params.mkey_name = optarg; 250 global_params.mask |= KADM5_CONFIG_MKEY_NAME; 251 } else if (((strcmp(*argv, "-sf") == 0) 252 /* SUNWresync121 - carry the old -f forward too */ 253 || (strcmp(*argv, "-f") == 0)) && ARG_VAL) { 254 global_params.stash_file = optarg; 255 global_params.mask |= KADM5_CONFIG_STASH_FILE; 256 } else if (strcmp(*argv, "-m") == 0) { 257 manual_mkey = TRUE; 258 global_params.mkey_from_kbd = 1; 259 global_params.mask |= KADM5_CONFIG_MKEY_FROM_KBD; 260 } else if (cmd_lookup(*argv) != NULL) { 261 if (cmd_argv[0] == NULL) 262 cmd_argv[0] = *argv; 263 else 264 usage(); 265 } else { 266 cmd_argv[cmd_argc++] = *argv; 267 } 268 argv++; 269 argc--; 270 } 271 272 if (cmd_argv[0] == NULL) 273 usage(); 274 275 if (retval = kadm5_get_config_params(util_context, NULL, NULL, 276 &global_params, &global_params)) { 277 com_err(argv[0], retval, 278 gettext("while retreiving configuration parameters")); 279 exit(1); 280 } 281 /* 282 * Dump creates files which should not be world-readable. It is 283 * easiest to do a single umask call here. 284 */ 285 (void) umask(077); 286 287 (void) memset(&master_key, 0, sizeof (krb5_keyblock)); 288 289 if ((global_params.enctype != ENCTYPE_UNKNOWN) && 290 (!valid_enctype(global_params.enctype))) { 291 com_err(argv[0], KRB5_PROG_KEYTYPE_NOSUPP, 292 gettext("while setting up enctype %d"), global_params.enctype); 293 } 294 295 cmd = cmd_lookup(cmd_argv[0]); 296 if (cmd->opendb && open_db_and_mkey()) 297 return (exit_status); 298 299 if (global_params.iprop_enabled == TRUE) 300 ulog_set_role(util_context, IPROP_MASTER); 301 else 302 ulog_set_role(util_context, IPROP_NULL); 303 304 (*cmd->func)(cmd_argc, cmd_argv); 305 306 if(close_policy_db) { 307 (void) osa_adb_close_policy(policy_db); 308 } 309 kadm5_free_config_params(util_context, &global_params); 310 krb5_free_context(util_context); 311 return (exit_status); 312 } 313 314 #if 0 315 /* 316 * This function is no longer used in kdb5_util (and it would no 317 * longer work, anyway). 318 */ 319 void 320 set_dbname(argc, argv) 321 int argc; 322 char *argv[]; 323 { 324 krb5_error_code retval; 325 326 if (argc < 3) { 327 com_err(argv[0], 0, gettext("Too few arguments")); 328 com_err(argv[0], 0, gettext("Usage: %s dbpathname realmname"), 329 argv[0]); 330 exit_status++; 331 return; 332 } 333 if (dbactive) { 334 if ((retval = krb5_db_fini(util_context)) && 335 retval != KRB5_KDB_DBNOTINITED) { 336 com_err(argv[0], retval, 337 gettext("while closing previous database")); 338 exit_status++; 339 return; 340 } 341 if (valid_master_key) { 342 krb5_free_keyblock_contents(util_context, &master_key); 343 valid_master_key = 0; 344 } 345 krb5_free_principal(util_context, master_princ); 346 dbactive = FALSE; 347 } 348 349 (void) set_dbname_help(argv[0], argv[1]); 350 } 351 352 #endif 353 354 /* 355 * open_db_and_mkey: Opens the KDC and policy database, and sets the 356 * global master_* variables. Sets dbactive to TRUE if the databases 357 * are opened, and valid_master_key to 1 if the global master 358 * variables are set properly. Returns 0 on success, and 1 on 359 * failure, but it is not considered a failure if the master key 360 * cannot be fetched (the master key stash file may not exist when the 361 * program is run). 362 */ 363 int 364 open_db_and_mkey() 365 { 366 krb5_error_code retval; 367 int nentries; 368 krb5_boolean more; 369 krb5_data scratch, pwd, seed; 370 371 dbactive = FALSE; 372 valid_master_key = 0; 373 374 if ((retval = krb5_db_set_name(util_context, global_params.dbname))) { 375 com_err(progname, retval, 376 gettext("while setting active database to '%s'"), 377 global_params.dbname); 378 exit_status++; 379 return(1); 380 } 381 if ((retval = krb5_db_init(util_context))) { 382 com_err(progname, retval, 383 gettext("while initializing database")); 384 exit_status++; 385 return(1); 386 } 387 if (retval = osa_adb_open_policy(&policy_db, &global_params)) { 388 com_err(progname, retval, 389 gettext("opening policy database")); 390 exit_status++; 391 return (1); 392 } 393 /* assemble & parse the master key name */ 394 395 if ((retval = krb5_db_setup_mkey_name(util_context, 396 global_params.mkey_name, 397 global_params.realm, 398 0, &master_princ))) { 399 com_err(progname, retval, 400 gettext("while setting up master key name")); 401 exit_status++; 402 return(1); 403 } 404 nentries = 1; 405 if ((retval = krb5_db_get_principal(util_context, master_princ, 406 &master_entry, &nentries, &more))) { 407 com_err(progname, retval, 408 gettext("while retrieving master entry")); 409 exit_status++; 410 (void) krb5_db_fini(util_context); 411 return(1); 412 } else if (more) { 413 com_err(progname, KRB5KDC_ERR_PRINCIPAL_NOT_UNIQUE, 414 gettext("while retrieving master entry")); 415 exit_status++; 416 (void) krb5_db_fini(util_context); 417 return(1); 418 } else if (!nentries) { 419 com_err(progname, KRB5_KDB_NOENTRY, 420 gettext("while retrieving master entry")); 421 exit_status++; 422 (void) krb5_db_fini(util_context); 423 return(1); 424 } 425 krb5_db_free_principal(util_context, &master_entry, nentries); 426 427 /* the databases are now open, and the master principal exists */ 428 dbactive = TRUE; 429 430 if (mkey_password) { 431 pwd.data = mkey_password; 432 pwd.length = strlen(mkey_password); 433 retval = krb5_principal2salt(util_context, 434 master_princ, &scratch); 435 if (retval) { 436 com_err(progname, retval, 437 gettext("while calculated master key salt")); 438 return(1); 439 } 440 /* If no encryption type is set, use the default */ 441 if (global_params.enctype == ENCTYPE_UNKNOWN) { 442 global_params.enctype = DEFAULT_KDC_ENCTYPE; 443 if (!valid_enctype(global_params.enctype)) 444 com_err(progname, KRB5_PROG_KEYTYPE_NOSUPP, 445 gettext("while setting up enctype %d"), 446 global_params.enctype); 447 } 448 449 retval = krb5_c_string_to_key(util_context, 450 global_params.enctype, 451 &pwd, &scratch, &master_key); 452 if (retval) { 453 com_err(progname, retval, 454 gettext("while transforming master key from password")); 455 return(1); 456 } 457 free(scratch.data); 458 mkey_password = 0; 459 } else if ((retval = krb5_db_fetch_mkey(util_context, master_princ, 460 global_params.enctype, 461 manual_mkey, FALSE, 462 global_params.stash_file, 463 0, &master_key))) { 464 com_err(progname, retval, 465 gettext("while reading master key")); 466 com_err(progname, 0, 467 gettext("Warning: proceeding without master key")); 468 exit_status++; 469 return(0); 470 } 471 if ((retval = krb5_db_verify_master_key(util_context, master_princ, 472 &master_key))) { 473 com_err(progname, retval, 474 gettext("while verifying master key")); 475 exit_status++; 476 krb5_free_keyblock_contents(util_context, &master_key); 477 return(1); 478 } 479 480 seed.length = master_key.length; 481 seed.data = (char *)master_key.contents; 482 483 if ((retval = krb5_c_random_seed(util_context, &seed))) { 484 com_err(progname, retval, 485 gettext("while initializing random key generator")); 486 exit_status++; 487 krb5_free_keyblock_contents(util_context, &master_key); 488 return(1); 489 } 490 491 valid_master_key = 1; 492 dbactive = TRUE; 493 return (0); 494 } 495 496 #ifdef HAVE_GETCWD 497 #undef getwd 498 #endif 499 500 int 501 quit() 502 { 503 krb5_error_code retval; 504 static krb5_boolean finished = 0; 505 506 if (finished) 507 return (0); 508 retval = krb5_db_fini(util_context); 509 krb5_free_keyblock_contents(util_context, &master_key); 510 finished = TRUE; 511 krb5_free_context(util_context); 512 if (retval && retval != KRB5_KDB_DBNOTINITED) { 513 com_err(progname, retval, gettext("while closing database")); 514 exit_status++; 515 return (1); 516 } 517 return (0); 518 } 519 520 int 521 add_random_key(argc, argv) 522 int argc; 523 char **argv; 524 { 525 krb5_error_code ret; 526 krb5_principal princ; 527 krb5_db_entry dbent; 528 int n, i; 529 krb5_boolean more; 530 krb5_timestamp now; 531 532 krb5_key_salt_tuple *keysalts = NULL; 533 krb5_int32 num_keysalts = 0; 534 535 int free_keysalts; 536 char *me = argv[0]; 537 char *ks_str = NULL; 538 char *pr_str; 539 540 if (argc < 2) 541 usage(); 542 for (argv++, argc--; *argv; argv++, argc--) { 543 if (!strcmp(*argv, "-e")) { 544 argv++; argc--; 545 ks_str = *argv; 546 continue; 547 } else 548 break; 549 } 550 if (argc < 1) 551 usage(); 552 pr_str = *argv; 553 ret = krb5_parse_name(util_context, pr_str, &princ); 554 if (ret) { 555 com_err(me, ret, gettext("while parsing principal name %s"), pr_str); 556 return 1; 557 } 558 n = 1; 559 ret = krb5_db_get_principal(util_context, princ, &dbent, 560 &n, &more); 561 if (ret) { 562 com_err(me, ret, gettext("while fetching principal %s"), pr_str); 563 return 1; 564 } 565 if (n != 1) { 566 fprintf(stderr, gettext("principal %s not found\n"), pr_str); 567 return 1; 568 } 569 if (more) { 570 fprintf(stderr, gettext("principal %s not unique\n"), pr_str); 571 krb5_dbe_free_contents(util_context, &dbent); 572 return 1; 573 } 574 ret = krb5_string_to_keysalts(ks_str, 575 ", \t", ":.-", 0, 576 &keysalts, 577 &num_keysalts); 578 if (ret) { 579 com_err(me, ret, gettext("while parsing keysalts %s"), ks_str); 580 return 1; 581 } 582 if (!num_keysalts || keysalts == NULL) { 583 num_keysalts = global_params.num_keysalts; 584 keysalts = global_params.keysalts; 585 free_keysalts = 0; 586 } else 587 free_keysalts = 1; 588 ret = krb5_dbe_ark(util_context, &master_key, 589 keysalts, num_keysalts, 590 &dbent); 591 if (free_keysalts) 592 free(keysalts); 593 if (ret) { 594 com_err(me, ret, gettext("while randomizing principal %s"), pr_str); 595 krb5_dbe_free_contents(util_context, &dbent); 596 return 1; 597 } 598 dbent.attributes &= ~KRB5_KDB_REQUIRES_PWCHANGE; 599 ret = krb5_timeofday(util_context, &now); 600 if (ret) { 601 com_err(me, ret, gettext("while getting time")); 602 krb5_dbe_free_contents(util_context, &dbent); 603 return 1; 604 } 605 ret = krb5_dbe_update_last_pwd_change(util_context, &dbent, now); 606 if (ret) { 607 com_err(me, ret, gettext("while setting changetime")); 608 krb5_dbe_free_contents(util_context, &dbent); 609 return 1; 610 } 611 ret = krb5_db_put_principal(util_context, &dbent, &n); 612 krb5_dbe_free_contents(util_context, &dbent); 613 if (ret) { 614 com_err(me, ret, gettext("while saving principal %s"), pr_str); 615 return 1; 616 } 617 printf("%s changed\n", pr_str); 618 return 0; 619 } 620