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    *prog = NULL;
  65         char    *ldaphost = NULL;
  66
  67         char    *dn = NULL;
  68         char    *binddn = NULL;
  69
  70         struct berval passwd = { 0, NULL };
  71         char    *newpw = NULL;
  72         char    *oldpw = NULL;
  73
  74         int             want_bindpw = 0;
  75         int             want_newpw = 0;
  76         int             want_oldpw = 0;
  77
  78         int             noupdates = 0;
  79         int             i;
  80         int             ldapport = 0;
  81         int             debug = 0;
  82         int             version = -1;
  83         int             authmethod = -1;
  84 #ifdef HAVE_CYRUS_SASL
  85         char            *sasl_authc_id = NULL;
  86         char            *sasl_authz_id = NULL;
  87         char            *sasl_mech = NULL;
  88         char            *sasl_secprops = NULL;
  89 #endif
  90         int             use_tls = 0;
  91         int             referrals = 0;
  92         LDAP           *ld;
  93         struct berval *bv = NULL;
  94
  95         int id, code;
  96         LDAPMessage *res;
  97         char *matcheddn = NULL, *text = NULL, **refs = NULL;
  98         char    *retoid = NULL;
  99         struct berval *retdata = NULL;
 100
 101     prog = (prog = strrchr(argv[0], *LDAP_DIRSEP)) == NULL ? argv[0] : ++prog;
 102
 103         if (argc == 1)
 104                 usage (argv[0]);
 105
 106         while( (i = getopt( argc, argv,
 107                 "Aa:Ss:" "Cd:D:h:nO:p:U:vw:WxX:Y:Z" )) != EOF )
 108         {
 109                 switch (i) {
 110                 /* Password Options */
 111                 case 'A':       /* prompt for old password */
 112                         want_oldpw++;
 113                         break;
 114
 115                 case 'a':       /* old password (secret) */
 116                         oldpw = strdup (optarg);
 117
 118                         {
 119                                 char* p;
 120
 121                                 for( p = optarg; *p == '\0'; p++ ) {
 122                                         *p = '*';
 123                                 }
 124                         }
 125                         break;
 126
 127                 case 'S':       /* prompt for user password */
 128                         want_newpw++;
 129                         break;
 130
 131                 case 's':       /* new password (secret) */
 132                         newpw = strdup (optarg);
 133                         {
 134                                 char* p;
 135
 136                                 for( p = optarg; *p == '\0'; p++ ) {
 137                                         *p = '*';
 138                                 }
 139                         }
 140                         break;
 141
 142                 /* Common Options */
 143                 case 'C':
 144                         referrals++;
 145                         break;
 146
 147                 case 'D':       /* bind distinguished name */
 148                         binddn = strdup (optarg);
 149                         break;
 150
 151                 case 'd':       /* debugging option */
 152                         debug |= atoi (optarg);
 153                         break;
 154
 155                 case 'h':       /* ldap host */
 156                         ldaphost = strdup (optarg);
 157                         break;
 158
 159                 case 'n':       /* don't update entry(s) */
 160                         noupdates++;
 161                         break;
 162
 163                 case 'p':       /* ldap port */
 164                         ldapport = strtol( optarg, NULL, 10 );
 165                         break;
 166
 167                 case 'v':       /* verbose */
 168                         verbose++;
 169                         break;
 170
 171                 case 'W':       /* prompt for bind password */
 172                         want_bindpw++;
 173                         break;
 174
 175                 case 'w':       /* bind password */
 176                         passwd.bv_val = strdup (optarg);
 177                         {
 178                                 char* p;
 179
 180                                 for( p = optarg; *p == '\0'; p++ ) {
 181                                         *p = '*';
 182                                 }
 183                         }
 184                         passwd.bv_len = strlen( passwd.bv_val );
 185                         break;
 186
 187                 case 'O':
 188 #ifdef HAVE_CYRUS_SASL
 189                         sasl_secprops = strdup( optarg );
 190                         authmethod = LDAP_AUTH_SASL;
 191 #else
 192                         fprintf( stderr, "%s was not compiled with SASL support\n",
 193                                 argv[0] );
 194                         return( EXIT_FAILURE );
 195 #endif
 196                         break;
 197                 case 'Y':
 198 #ifdef HAVE_CYRUS_SASL
 199                         if ( strcasecmp( optarg, "any" ) &&
 200                                         strcmp( optarg, "*" ) ) {
 201                                 sasl_mech = strdup( optarg );
 202                         }
 203                         authmethod = LDAP_AUTH_SASL;
 204 #else
 205                         fprintf( stderr, "%s was not compiled with SASL "
 206                                 "support\n", argv[0] );
 207                         return( EXIT_FAILURE );
 208 #endif
 209                         break;
 210                 case 'U':
 211 #ifdef HAVE_CYRUS_SASL
 212                         sasl_authc_id = strdup( optarg );
 213                         authmethod = LDAP_AUTH_SASL;
 214 #else
 215                         fprintf( stderr, "%s was not compiled with SASL "
 216                                 "support\n", argv[0] );
 217                         return( EXIT_FAILURE );
 218 #endif
 219                         break;
 220                 case 'X':
 221 #ifdef HAVE_CYRUS_SASL
 222                         sasl_authz_id = strdup( optarg );
 223                         authmethod = LDAP_AUTH_SASL;
 224 #else
 225                         fprintf( stderr, "%s was not compiled with SASL "
 226                                 "support\n", argv[0] );
 227                         return( EXIT_FAILURE );
 228 #endif
 229                         break;
 230                 case 'Z':
 231 #ifdef HAVE_TLS
 232                         use_tls++;
 233 #else
 234                         fprintf( stderr, "%s was not compiled with TLS "
 235                                 "support\n", argv[0] );
 236                         return( EXIT_FAILURE );
 237 #endif
 238                         break;
 239
 240                 default:
 241                         fprintf( stderr, "%s: unrecongized option -%c\n",
 242                                 prog, optopt );
 243                         usage (argv[0]);
 244                 }
 245         }
 246
 247         if( argc - optind != 1 ) {
 248                 usage( argv[0] );
 249         }
 250
 251         dn = strdup( argv[optind] );
 252
 253         if( want_oldpw && oldpw == NULL ) {
 254                 /* prompt for old password */
 255                 char *ckoldpw;
 256                 newpw = strdup(getpassphrase("Old password: "));
 257                 ckoldpw = getpassphrase("Re-enter old password: ");
 258
 259                 if( newpw== NULL || ckoldpw == NULL ||
 260                         strncmp( oldpw, ckoldpw, strlen(oldpw) ))
 261                 {
 262                         fprintf( stderr, "passwords do not match\n" );
 263                         return EXIT_FAILURE;
 264                 }
 265         }
 266
 267         if( want_newpw && newpw == NULL ) {
 268                 /* prompt for new password */
 269                 char *cknewpw;
 270                 newpw = strdup(getpassphrase("New password: "));
 271                 cknewpw = getpassphrase("Re-enter new password: ");
 272
 273                 if( newpw== NULL || cknewpw == NULL ||
 274                         strncmp( newpw, cknewpw, strlen(newpw) ))
 275                 {
 276                         fprintf( stderr, "passwords do not match\n" );
 277                         return EXIT_FAILURE;
 278                 }
 279         }
 280
 281         if( binddn == NULL && dn != NULL ) {
 282                 binddn = dn;
 283                 dn = NULL;
 284
 285                 if( passwd.bv_val == NULL ) {
 286                         passwd.bv_val = oldpw;
 287                         passwd.bv_len = oldpw == NULL ? 0 : strlen( oldpw );
 288                 }
 289         }
 290
 291         if (want_bindpw && passwd.bv_val == NULL ) {
 292                 /* handle bind password */
 293                 fprintf( stderr, "Bind DN: %s\n", binddn );
 294                 passwd.bv_val = strdup( getpassphrase("Enter bind password: "));
 295                 passwd.bv_len = passwd.bv_val ? strlen( passwd.bv_val ) : 0;
 296         }
 297
 298         if ( debug ) {
 299                 if( ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &debug ) != LBER_OPT_SUCCESS ) {
 300                         fprintf( stderr, "Could not set LBER_OPT_DEBUG_LEVEL %d\n", debug );
 301                 }
 302                 if( ldap_set_option( NULL, LDAP_OPT_DEBUG_LEVEL, &debug ) != LDAP_OPT_SUCCESS ) {
 303                         fprintf( stderr, "Could not set LDAP_OPT_DEBUG_LEVEL %d\n", debug );
 304                 }
 305         }
 306
 307 #ifdef SIGPIPE
 308         (void) SIGNAL( SIGPIPE, SIG_IGN );
 309 #endif
 310
 311         /* connect to server */
 312         if ((ld = ldap_init( ldaphost, ldapport )) == NULL) {
 313                 perror("ldap_init");
 314                 return EXIT_FAILURE;
 315         }
 316
 317         /* referrals */
 318         if (ldap_set_option( ld, LDAP_OPT_REFERRALS,
 319                 referrals ? LDAP_OPT_ON : LDAP_OPT_OFF ) != LDAP_OPT_SUCCESS )
 320         {
 321                 fprintf( stderr, "Could not set LDAP_OPT_REFERRALS %s\n",
 322                         referrals ? "on" : "off" );
 323                 return EXIT_FAILURE;
 324         }
 325
 326         /* LDAPv3 only */
 327         version = 3;
 328         rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version );
 329
 330         if(rc != LDAP_OPT_SUCCESS ) {
 331                 fprintf( stderr, "Could not set LDAP_OPT_PROTOCOL_VERSION %d\n", version );
 332                 return EXIT_FAILURE;
 333         }
 334
 335         if ( use_tls && ldap_start_tls_s( ld, NULL, NULL ) != LDAP_SUCCESS ) {
 336                 if ( use_tls > 1 ) {
 337                         ldap_perror( ld, "ldap_start_tls" );
 338                         return( EXIT_FAILURE );
 339                 }
 340                 fprintf( stderr, "WARNING: could not start TLS\n" );
 341         }
 342
 343         if ( authmethod == LDAP_AUTH_SASL ) {
 344 #ifdef HAVE_CYRUS_SASL
 345                 if( sasl_secprops != NULL ) {
 346                         rc = ldap_set_option( ld, LDAP_OPT_X_SASL_SECPROPS,
 347                                 (void *) sasl_secprops );
 348
 349                         if( rc != LDAP_OPT_SUCCESS ) {
 350                                 fprintf( stderr,
 351                                         "Could not set LDAP_OPT_X_SASL_SECPROPS: %s\n",
 352                                         sasl_secprops );
 353                                 return( EXIT_FAILURE );
 354                         }
 355                 }
 356
 357                 rc = ldap_sasl_interactive_bind_s( ld, binddn,
 358                         sasl_mech, NULL, NULL, lutil_sasl_interact );
 359
 360                 if( rc != LDAP_SUCCESS ) {
 361                         ldap_perror( ld, "ldap_sasl_interactive_bind_s" );
 362                         return( EXIT_FAILURE );
 363                 }
 364 #else
 365                 fprintf( stderr, "%s was not compiled with SASL support\n",
 366                         argv[0] );
 367                 return( EXIT_FAILURE );
 368 #endif
 369         }
 370         else {
 371                 if ( ldap_bind_s( ld, binddn, passwd.bv_val, authmethod )
 372                                 != LDAP_SUCCESS ) {
 373                         ldap_perror( ld, "ldap_bind" );
 374                         return( EXIT_FAILURE );
 375                 }
 376         }
 377
 378         if( dn != NULL || oldpw != NULL || newpw != NULL ) {
 379                 /* build change password control */
 380                 BerElement *ber = ber_alloc_t( LBER_USE_DER );
 381
 382                 if( ber == NULL ) {
 383                         perror( "ber_alloc_t" );
 384                         ldap_unbind( ld );
 385                         return EXIT_FAILURE;
 386                 }
 387
 388                 ber_printf( ber, "{" /*}*/ );
 389
 390                 if( dn != NULL ) {
 391                         ber_printf( ber, "ts",
 392                                 LDAP_TAG_EXOP_X_MODIFY_PASSWD_ID, dn );
 393                         free(dn);
 394                 }
 395
 396                 if( oldpw != NULL ) {
 397                         ber_printf( ber, "ts",
 398                                 LDAP_TAG_EXOP_X_MODIFY_PASSWD_NEW, oldpw );
 399                         free(oldpw);
 400                 }
 401
 402                 if( newpw != NULL ) {
 403                         ber_printf( ber, "ts",
 404                                 LDAP_TAG_EXOP_X_MODIFY_PASSWD_NEW, newpw );
 405                         free(newpw);
 406                 }
 407
 408                 ber_printf( ber, /*{*/ "N}" );
 409
 410                 rc = ber_flatten( ber, &bv );
 411
 412                 if( rc < 0 ) {
 413                         perror( "ber_flatten" );
 414                         ldap_unbind( ld );
 415                         return EXIT_FAILURE;
 416                 }
 417
 418                 ber_free( ber, 1 );
 419         }
 420
 421         if ( noupdates ) {
 422                 rc = LDAP_SUCCESS;
 423                 goto skip;
 424         }
 425
 426         rc = ldap_extended_operation( ld,
 427                 LDAP_EXOP_X_MODIFY_PASSWD, bv,
 428                 NULL, NULL, &id );
 429
 430         ber_bvfree( bv );
 431
 432         if( rc != LDAP_SUCCESS ) {
 433                 ldap_perror( ld, "ldap_extended_operation" );
 434                 ldap_unbind( ld );
 435                 return EXIT_FAILURE;
 436         }
 437
 438         rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res );
 439         if ( rc < 0 ) {
 440                 ldap_perror( ld, "ldappasswd: ldap_result" );
 441                 return rc;
 442         }
 443
 444         rc = ldap_parse_result( ld, res, &code, &matcheddn, &text, &refs, NULL, 0 );
 445
 446         if( rc != LDAP_SUCCESS ) {
 447                 ldap_perror( ld, "ldap_parse_result" );
 448                 return rc;
 449         }
 450
 451         rc = ldap_parse_extended_result( ld, res, &retoid, &retdata, 1 );
 452
 453         if( rc != LDAP_SUCCESS ) {
 454                 ldap_perror( ld, "ldap_parse_result" );
 455                 return rc;
 456         }
 457
 458         if( retdata != NULL ) {
 459                 ber_tag_t tag;
 460                 char *s;
 461                 BerElement *ber = ber_init( retdata );
 462
 463                 if( ber == NULL ) {
 464                         perror( "ber_init" );
 465                         ldap_unbind( ld );
 466                         return EXIT_FAILURE;
 467                 }
 468
 469                 /* we should check the tag */
 470                 tag = ber_scanf( ber, "{a}", &s);
 471
 472                 if( tag == LBER_ERROR ) {
 473                         perror( "ber_scanf" );
 474                 } else {
 475                         printf("New password: %s\n", s);
 476                         free( s );
 477                 }
 478
 479                 ber_free( ber, 1 );
 480         }
 481
 482         if( verbose || code != LDAP_SUCCESS || matcheddn || text || refs ) {
 483                 printf( "Result: %s (%d)\n", ldap_err2string( code ), code );
 484
 485                 if( text && *text ) {
 486                         printf( "Additional info: %s\n", text );
 487                 }
 488
 489                 if( matcheddn && *matcheddn ) {
 490                         printf( "Matched DN: %s\n", matcheddn );
 491                 }
 492
 493                 if( refs ) {
 494                         int i;
 495                         for( i=0; refs[i]; i++ ) {
 496                                 printf("Referral: %s\n", refs[i] );
 497                         }
 498                 }
 499         }
 500
 501         ber_memfree( text );
 502         ber_memfree( matcheddn );
 503         ber_memvfree( (void **) refs );
 504         ber_memfree( retoid );
 505         ber_bvfree( retdata );
 506
 507 skip:
 508         /* disconnect from server */
 509         ldap_unbind (ld);
 510
 511         return EXIT_SUCCESS;
 512 }