git.sur5r.net Git - openldap/blob - clients/tools/ldappasswd.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6
   7 #include "portable.h"
   8
   9 #include <stdio.h>
  10
  11 #include <ac/stdlib.h>
  12
  13 #include <ac/ctype.h>
  14 #include <ac/signal.h>
  15 #include <ac/socket.h>
  16 #include <ac/string.h>
  17 #include <ac/time.h>
  18 #include <ac/unistd.h>
  19
  20 #include <ldap.h>
  21
  22 #include "lutil_ldap.h"
  23 #include "ldap_defaults.h"
  24
  25 static int      verbose = 0;
  26
  27 static void
  28 usage(const char *s)
  29 {
  30         fprintf(stderr,
  31 "Change the password of an LDAP entry\n\n"
  32 "usage: %s [options] dn\n"
  33 "       dn: the DN of the entry whose password must be changed\n"
  34 "Password change options:\n"
  35 "       -a secret\told password\n"
  36 "       -A\t\tprompt for old password\n"
  37 "       -s secret\tnew password\n"
  38 "       -S\t\tprompt for new password\n"
  39
  40 "Common options:\n"
  41 "       -d level\tdebugging level\n"
  42 "       -C\t\tchase referrals\n"
  43 "       -D binddn\tbind DN\n"
  44 "       -h host\t\tLDAP server (default: localhost)\n"
  45 "       -n\t\tmake no modifications\n"
  46 "       -O secprops\tSASL security properties\n"
  47 "       -p port\t\tport on LDAP server\n"
  48 "       -U user\t\tSASL authentication identity (username)\n"
  49 "       -v\t\tverbose mode\n"
  50 "       -w passwd\tbind password (for simple authentication)\n"
  51 "       -W\t\tprompt for bind password\n"
  52 "       -X id\t\tSASL authorization identity (\"dn:<dn>\" or \"u:<user>\")\n"
  53 "       -Y mech\t\tSASL mechanism\n"
  54 "       -Z\t\tissue Start TLS request (-ZZ to require successful response)\n"
  55                 , s );
  56
  57         exit( EXIT_FAILURE );
  58 }
  59
  60 int
  61 main( int argc, char *argv[] )
  62 {
  63         int rc;
  64         char    *ldaphost = NULL;
  65
  66         char    *dn = NULL;
  67         char    *binddn = NULL;
  68
  69         struct berval passwd = { 0, NULL };
  70         char    *newpw = NULL;
  71         char    *oldpw = NULL;
  72
  73         int             want_bindpw = 0;
  74         int             want_newpw = 0;
  75         int             want_oldpw = 0;
  76
  77         int             noupdates = 0;
  78         int             i;
  79         int             ldapport = 0;
  80         int             debug = 0;
  81         int             version = -1;
  82         int             authmethod = -1;
  83 #ifdef HAVE_CYRUS_SASL
  84         char            *sasl_authc_id = NULL;
  85         char            *sasl_authz_id = NULL;
  86         char            *sasl_mech = NULL;
  87         char            *sasl_secprops = NULL;
  88 #endif
  89         int             use_tls = 0;
  90         int             referrals = 0;
  91         LDAP           *ld;
  92         struct berval *bv = NULL;
  93
  94         int id, code;
  95         LDAPMessage *res;
  96         char *matcheddn = NULL, *text = NULL, **refs = NULL;
  97         char    *retoid = NULL;
  98         struct berval *retdata = NULL;
  99
 100         if (argc == 1)
 101                 usage (argv[0]);
 102
 103         while( (i = getopt( argc, argv,
 104                 "Aa:Ss:" "Cd:D:h:nO:p:U:vw:WxX:Y:Z" )) != EOF )
 105         {
 106                 switch (i) {
 107                 /* Password Options */
 108                 case 'A':       /* prompt for old password */
 109                         want_oldpw++;
 110                         break;
 111
 112                 case 'a':       /* old password (secret) */
 113                         oldpw = strdup (optarg);
 114
 115                         {
 116                                 char* p;
 117
 118                                 for( p = optarg; *p == '\0'; p++ ) {
 119                                         *p = '*';
 120                                 }
 121                         }
 122                         break;
 123
 124                 case 'S':       /* prompt for user password */
 125                         want_newpw++;
 126                         break;
 127
 128                 case 's':       /* new password (secret) */
 129                         newpw = strdup (optarg);
 130                         {
 131                                 char* p;
 132
 133                                 for( p = optarg; *p == '\0'; p++ ) {
 134                                         *p = '*';
 135                                 }
 136                         }
 137                         break;
 138
 139                 /* Common Options */
 140                 case 'C':
 141                         referrals++;
 142                         break;
 143
 144                 case 'D':       /* bind distinguished name */
 145                         binddn = strdup (optarg);
 146                         break;
 147
 148                 case 'd':       /* debugging option */
 149                         debug |= atoi (optarg);
 150                         break;
 151
 152                 case 'h':       /* ldap host */
 153                         ldaphost = strdup (optarg);
 154                         break;
 155
 156                 case 'n':       /* don't update entry(s) */
 157                         noupdates++;
 158                         break;
 159
 160                 case 'p':       /* ldap port */
 161                         ldapport = strtol( optarg, NULL, 10 );
 162                         break;
 163
 164                 case 'v':       /* verbose */
 165                         verbose++;
 166                         break;
 167
 168                 case 'W':       /* prompt for bind password */
 169                         want_bindpw++;
 170                         break;
 171
 172                 case 'w':       /* bind password */
 173                         passwd.bv_val = strdup (optarg);
 174                         {
 175                                 char* p;
 176
 177                                 for( p = optarg; *p == '\0'; p++ ) {
 178                                         *p = '*';
 179                                 }
 180                         }
 181                         passwd.bv_len = strlen( passwd.bv_val );
 182                         break;
 183
 184                 case 'O':
 185 #ifdef HAVE_CYRUS_SASL
 186                         sasl_secprops = strdup( optarg );
 187                         authmethod = LDAP_AUTH_SASL;
 188 #else
 189                         fprintf( stderr, "%s was not compiled with SASL support\n",
 190                                 argv[0] );
 191                         return( EXIT_FAILURE );
 192 #endif
 193                         break;
 194                 case 'Y':
 195 #ifdef HAVE_CYRUS_SASL
 196                         if ( strcasecmp( optarg, "any" ) &&
 197                                         strcmp( optarg, "*" ) ) {
 198                                 sasl_mech = strdup( optarg );
 199                         }
 200                         authmethod = LDAP_AUTH_SASL;
 201 #else
 202                         fprintf( stderr, "%s was not compiled with SASL "
 203                                 "support\n", argv[0] );
 204                         return( EXIT_FAILURE );
 205 #endif
 206                         break;
 207                 case 'U':
 208 #ifdef HAVE_CYRUS_SASL
 209                         sasl_authc_id = strdup( optarg );
 210                         authmethod = LDAP_AUTH_SASL;
 211 #else
 212                         fprintf( stderr, "%s was not compiled with SASL "
 213                                 "support\n", argv[0] );
 214                         return( EXIT_FAILURE );
 215 #endif
 216                         break;
 217                 case 'X':
 218 #ifdef HAVE_CYRUS_SASL
 219                         sasl_authz_id = strdup( optarg );
 220                         authmethod = LDAP_AUTH_SASL;
 221 #else
 222                         fprintf( stderr, "%s was not compiled with SASL "
 223                                 "support\n", argv[0] );
 224                         return( EXIT_FAILURE );
 225 #endif
 226                         break;
 227                 case 'Z':
 228 #ifdef HAVE_TLS
 229                         use_tls++;
 230 #else
 231                         fprintf( stderr, "%s was not compiled with TLS "
 232                                 "support\n", argv[0] );
 233                         return( EXIT_FAILURE );
 234 #endif
 235                         break;
 236
 237                 default:
 238                         usage (argv[0]);
 239                 }
 240         }
 241
 242         if( argc - optind != 1 ) {
 243                 usage( argv[0] );
 244         }
 245
 246         dn = strdup( argv[optind] );
 247
 248         if( want_oldpw && oldpw == NULL ) {
 249                 /* prompt for old password */
 250                 char *ckoldpw;
 251                 newpw = strdup(getpassphrase("Old password: "));
 252                 ckoldpw = getpassphrase("Re-enter old password: ");
 253
 254                 if( newpw== NULL || ckoldpw == NULL ||
 255                         strncmp( oldpw, ckoldpw, strlen(oldpw) ))
 256                 {
 257                         fprintf( stderr, "passwords do not match\n" );
 258                         return EXIT_FAILURE;
 259                 }
 260         }
 261
 262         if( want_newpw && newpw == NULL ) {
 263                 /* prompt for new password */
 264                 char *cknewpw;
 265                 newpw = strdup(getpassphrase("New password: "));
 266                 cknewpw = getpassphrase("Re-enter new password: ");
 267
 268                 if( newpw== NULL || cknewpw == NULL ||
 269                         strncmp( newpw, cknewpw, strlen(newpw) ))
 270                 {
 271                         fprintf( stderr, "passwords do not match\n" );
 272                         return EXIT_FAILURE;
 273                 }
 274         }
 275
 276         if( binddn == NULL && dn != NULL ) {
 277                 binddn = dn;
 278                 dn = NULL;
 279
 280                 if( passwd.bv_val == NULL ) {
 281                         passwd.bv_val = oldpw;
 282                         passwd.bv_len = oldpw == NULL ? 0 : strlen( oldpw );
 283                 }
 284         }
 285
 286         if (want_bindpw && passwd.bv_val == NULL ) {
 287                 /* handle bind password */
 288                 fprintf( stderr, "Bind DN: %s\n", binddn );
 289                 passwd.bv_val = strdup( getpassphrase("Enter bind password: "));
 290                 passwd.bv_len = passwd.bv_val ? strlen( passwd.bv_val ) : 0;
 291         }
 292
 293         if ( debug ) {
 294                 if( ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &debug ) != LBER_OPT_SUCCESS ) {
 295                         fprintf( stderr, "Could not set LBER_OPT_DEBUG_LEVEL %d\n", debug );
 296                 }
 297                 if( ldap_set_option( NULL, LDAP_OPT_DEBUG_LEVEL, &debug ) != LDAP_OPT_SUCCESS ) {
 298                         fprintf( stderr, "Could not set LDAP_OPT_DEBUG_LEVEL %d\n", debug );
 299                 }
 300         }
 301
 302 #ifdef SIGPIPE
 303         (void) SIGNAL( SIGPIPE, SIG_IGN );
 304 #endif
 305
 306         /* connect to server */
 307         if ((ld = ldap_init( ldaphost, ldapport )) == NULL) {
 308                 perror("ldap_init");
 309                 return EXIT_FAILURE;
 310         }
 311
 312         /* referrals */
 313         if (ldap_set_option( ld, LDAP_OPT_REFERRALS,
 314                 referrals ? LDAP_OPT_ON : LDAP_OPT_OFF ) != LDAP_OPT_SUCCESS )
 315         {
 316                 fprintf( stderr, "Could not set LDAP_OPT_REFERRALS %s\n",
 317                         referrals ? "on" : "off" );
 318                 return EXIT_FAILURE;
 319         }
 320
 321         /* LDAPv3 only */
 322         version = 3;
 323         rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version );
 324
 325         if(rc != LDAP_OPT_SUCCESS ) {
 326                 fprintf( stderr, "Could not set LDAP_OPT_PROTOCOL_VERSION %d\n", version );
 327                 return EXIT_FAILURE;
 328         }
 329
 330         if ( use_tls && ldap_start_tls_s( ld, NULL, NULL ) != LDAP_SUCCESS ) {
 331                 if ( use_tls > 1 ) {
 332                         ldap_perror( ld, "ldap_start_tls" );
 333                         return( EXIT_FAILURE );
 334                 }
 335                 fprintf( stderr, "WARNING: could not start TLS\n" );
 336         }
 337
 338         if ( authmethod == LDAP_AUTH_SASL ) {
 339 #ifdef HAVE_CYRUS_SASL
 340                 ldap_set_sasl_interact_proc( ld, lutil_sasl_interact );
 341
 342                 if( sasl_secprops != NULL ) {
 343                         rc = ldap_set_option( ld, LDAP_OPT_X_SASL_SECPROPS,
 344                                 (void *) sasl_secprops );
 345
 346                         if( rc != LDAP_OPT_SUCCESS ) {
 347                                 fprintf( stderr,
 348                                         "Could not set LDAP_OPT_X_SASL_SECPROPS: %s\n",
 349                                         sasl_secprops );
 350                                 return( EXIT_FAILURE );
 351                         }
 352                 }
 353
 354                 rc = ldap_sasl_interactive_bind_s( ld, binddn,
 355                                 sasl_mech, NULL, NULL );
 356
 357                 if( rc != LDAP_SUCCESS ) {
 358                         ldap_perror( ld, "ldap_sasl_interactive_bind_s" );
 359                         return( EXIT_FAILURE );
 360                 }
 361 #else
 362                 fprintf( stderr, "%s was not compiled with SASL support\n",
 363                         argv[0] );
 364                 return( EXIT_FAILURE );
 365 #endif
 366         }
 367         else {
 368                 if ( ldap_bind_s( ld, binddn, passwd.bv_val, authmethod )
 369                                 != LDAP_SUCCESS ) {
 370                         ldap_perror( ld, "ldap_bind" );
 371                         return( EXIT_FAILURE );
 372                 }
 373         }
 374
 375         if( dn != NULL || oldpw != NULL || newpw != NULL ) {
 376                 /* build change password control */
 377                 BerElement *ber = ber_alloc_t( LBER_USE_DER );
 378
 379                 if( ber == NULL ) {
 380                         perror( "ber_alloc_t" );
 381                         ldap_unbind( ld );
 382                         return EXIT_FAILURE;
 383                 }
 384
 385                 ber_printf( ber, "{" /*}*/ );
 386
 387                 if( dn != NULL ) {
 388                         ber_printf( ber, "ts",
 389                                 LDAP_TAG_EXOP_X_MODIFY_PASSWD_ID, dn );
 390                         free(dn);
 391                 }
 392
 393                 if( oldpw != NULL ) {
 394                         ber_printf( ber, "ts",
 395                                 LDAP_TAG_EXOP_X_MODIFY_PASSWD_NEW, oldpw );
 396                         free(oldpw);
 397                 }
 398
 399                 if( newpw != NULL ) {
 400                         ber_printf( ber, "ts",
 401                                 LDAP_TAG_EXOP_X_MODIFY_PASSWD_NEW, newpw );
 402                         free(newpw);
 403                 }
 404
 405                 ber_printf( ber, /*{*/ "N}" );
 406
 407                 rc = ber_flatten( ber, &bv );
 408
 409                 if( rc < 0 ) {
 410                         perror( "ber_flatten" );
 411                         ldap_unbind( ld );
 412                         return EXIT_FAILURE;
 413                 }
 414
 415                 ber_free( ber, 1 );
 416         }
 417
 418         if ( noupdates ) {
 419                 rc = LDAP_SUCCESS;
 420                 goto skip;
 421         }
 422
 423         rc = ldap_extended_operation( ld,
 424                 LDAP_EXOP_X_MODIFY_PASSWD, bv,
 425                 NULL, NULL, &id );
 426
 427         ber_bvfree( bv );
 428
 429         if( rc != LDAP_SUCCESS ) {
 430                 ldap_perror( ld, "ldap_extended_operation" );
 431                 ldap_unbind( ld );
 432                 return EXIT_FAILURE;
 433         }
 434
 435         rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res );
 436         if ( rc < 0 ) {
 437                 ldap_perror( ld, "ldappasswd: ldap_result" );
 438                 return rc;
 439         }
 440
 441         rc = ldap_parse_result( ld, res, &code, &matcheddn, &text, &refs, NULL, 0 );
 442
 443         if( rc != LDAP_SUCCESS ) {
 444                 ldap_perror( ld, "ldap_parse_result" );
 445                 return rc;
 446         }
 447
 448         rc = ldap_parse_extended_result( ld, res, &retoid, &retdata, 1 );
 449
 450         if( rc != LDAP_SUCCESS ) {
 451                 ldap_perror( ld, "ldap_parse_result" );
 452                 return rc;
 453         }
 454
 455         if( retdata != NULL ) {
 456                 ber_tag_t tag;
 457                 char *s;
 458                 BerElement *ber = ber_init( retdata );
 459
 460                 if( ber == NULL ) {
 461                         perror( "ber_init" );
 462                         ldap_unbind( ld );
 463                         return EXIT_FAILURE;
 464                 }
 465
 466                 /* we should check the tag */
 467                 tag = ber_scanf( ber, "{a}", &s);
 468
 469                 if( tag == LBER_ERROR ) {
 470                         perror( "ber_scanf" );
 471                 } else {
 472                         printf("New password: %s\n", s);
 473                         free( s );
 474                 }
 475
 476                 ber_free( ber, 1 );
 477         }
 478
 479         if( verbose || code != LDAP_SUCCESS || matcheddn || text || refs ) {
 480                 printf( "Result: %s (%d)\n", ldap_err2string( code ), code );
 481
 482                 if( text && *text ) {
 483                         printf( "Additional info: %s\n", text );
 484                 }
 485
 486                 if( matcheddn && *matcheddn ) {
 487                         printf( "Matched DN: %s\n", matcheddn );
 488                 }
 489
 490                 if( refs ) {
 491                         int i;
 492                         for( i=0; refs[i]; i++ ) {
 493                                 printf("Referral: %s\n", refs[i] );
 494                         }
 495                 }
 496         }
 497
 498         ber_memfree( text );
 499         ber_memfree( matcheddn );
 500         ber_memvfree( (void **) refs );
 501         ber_memfree( retoid );
 502         ber_bvfree( retdata );
 503
 504 skip:
 505         /* disconnect from server */
 506         ldap_unbind (ld);
 507
 508         return EXIT_SUCCESS;
 509 }