git.sur5r.net Git - openldap/blob - libraries/libldap/cyrus.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1999-2000 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6
   7 #include "portable.h"
   8
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11
  12 #include <ac/socket.h>
  13 #include <ac/string.h>
  14 #include <ac/time.h>
  15 #include <ac/errno.h>
  16
  17 #include "ldap-int.h"
  18 #ifdef LDAP_R_COMPILE
  19 #include "ldap_pvt_thread.h"
  20 #endif
  21
  22 #ifdef HAVE_CYRUS_SASL
  23 #include <sasl.h>
  24
  25 /*
  26 * Various Cyrus SASL related stuff.
  27 */
  28
  29 #define SASL_MAX_BUFF_SIZE      65536
  30 #define SASL_MIN_BUFF_SIZE      4096
  31
  32 int ldap_int_sasl_init( void )
  33 {
  34         /* XXX not threadsafe */
  35         static int sasl_initialized = 0;
  36
  37         static sasl_callback_t client_callbacks[] = {
  38 #ifdef SASL_CB_GETREALM
  39                 { SASL_CB_GETREALM, NULL, NULL },
  40 #endif
  41                 { SASL_CB_USER, NULL, NULL },
  42                 { SASL_CB_AUTHNAME, NULL, NULL },
  43                 { SASL_CB_PASS, NULL, NULL },
  44                 { SASL_CB_ECHOPROMPT, NULL, NULL },
  45                 { SASL_CB_NOECHOPROMPT, NULL, NULL },
  46                 { SASL_CB_LIST_END, NULL, NULL }
  47         };
  48
  49         if ( sasl_initialized ) {
  50                 return 0;
  51         }
  52
  53 #ifndef CSRIMALLOC
  54         sasl_set_alloc(
  55                 ber_memalloc,
  56                 ber_memcalloc,
  57                 ber_memrealloc,
  58                 ber_memfree );
  59 #endif /* CSRIMALLOC */
  60
  61 #ifdef LDAP_R_COMPILE
  62         sasl_set_mutex(
  63                 ldap_pvt_sasl_mutex_new,
  64                 ldap_pvt_sasl_mutex_lock,
  65                 ldap_pvt_sasl_mutex_unlock,
  66                 ldap_pvt_sasl_mutex_dispose );
  67 #endif
  68
  69         if ( sasl_client_init( client_callbacks ) == SASL_OK ) {
  70                 sasl_initialized = 1;
  71                 return 0;
  72         }
  73
  74         return -1;
  75 }
  76
  77 /*
  78  * SASL encryption support for LBER Sockbufs
  79  */
  80
  81 struct sb_sasl_data {
  82         sasl_conn_t             *sasl_context;
  83         Sockbuf_Buf             sec_buf_in;
  84         Sockbuf_Buf             buf_in;
  85         Sockbuf_Buf             buf_out;
  86 };
  87
  88 static int
  89 sb_sasl_setup( Sockbuf_IO_Desc *sbiod, void *arg )
  90 {
  91         struct sb_sasl_data     *p;
  92
  93         assert( sbiod != NULL );
  94
  95         p = LBER_MALLOC( sizeof( *p ) );
  96         if ( p == NULL )
  97                 return -1;
  98         p->sasl_context = (sasl_conn_t *)arg;
  99         ber_pvt_sb_buf_init( &p->sec_buf_in );
 100         ber_pvt_sb_buf_init( &p->buf_in );
 101         ber_pvt_sb_buf_init( &p->buf_out );
 102         if ( ber_pvt_sb_grow_buffer( &p->sec_buf_in, SASL_MIN_BUFF_SIZE ) < 0 ) {
 103                 errno = ENOMEM;
 104                 return -1;
 105         }
 106
 107         sbiod->sbiod_pvt = p;
 108
 109         return 0;
 110 }
 111
 112 static int
 113 sb_sasl_remove( Sockbuf_IO_Desc *sbiod )
 114 {
 115         struct sb_sasl_data     *p;
 116
 117         assert( sbiod != NULL );
 118
 119         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 120         ber_pvt_sb_buf_destroy( &p->sec_buf_in );
 121         ber_pvt_sb_buf_destroy( &p->buf_in );
 122         ber_pvt_sb_buf_destroy( &p->buf_out );
 123         LBER_FREE( p );
 124         sbiod->sbiod_pvt = NULL;
 125         return 0;
 126 }
 127
 128 static ber_len_t
 129 sb_sasl_pkt_length( const char *buf, int debuglevel )
 130 {
 131         ber_len_t               size;
 132         long                    tmp;
 133
 134         assert( buf != NULL );
 135
 136         tmp = *((long *)buf);
 137         size = ntohl( tmp );
 138
 139         if ( size > SASL_MAX_BUFF_SIZE ) {
 140                 /* somebody is trying to mess me up. */
 141                 ber_log_printf( LDAP_DEBUG_ANY, debuglevel,
 142                         "sb_sasl_pkt_length: received illegal packet length "
 143                         "of %lu bytes\n", (unsigned long)size );
 144                 size = 16; /* this should lead to an error. */
 145 }
 146
 147         return size + 4; /* include the size !!! */
 148 }
 149
 150 /* Drop a processed packet from the input buffer */
 151 static void
 152 sb_sasl_drop_packet ( Sockbuf_Buf *sec_buf_in, int debuglevel )
 153 {
 154         ber_slen_t                      len;
 155
 156         len = sec_buf_in->buf_ptr - sec_buf_in->buf_end;
 157         if ( len > 0 )
 158                 memmove( sec_buf_in->buf_base, sec_buf_in->buf_base +
 159                         sec_buf_in->buf_end, len );
 160
 161         if ( len >= 4 ) {
 162                 sec_buf_in->buf_end = sb_sasl_pkt_length( sec_buf_in->buf_base,
 163                         debuglevel);
 164         }
 165         else {
 166                 sec_buf_in->buf_end = 0;
 167         }
 168         sec_buf_in->buf_ptr = len;
 169 }
 170
 171 static ber_slen_t
 172 sb_sasl_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
 173 {
 174         struct sb_sasl_data     *p;
 175         ber_slen_t              ret, bufptr;
 176
 177         assert( sbiod != NULL );
 178         assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
 179
 180         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 181
 182         /* Are there anything left in the buffer? */
 183         ret = ber_pvt_sb_copy_out( &p->buf_in, buf, len );
 184         bufptr = ret;
 185         len -= ret;
 186
 187         if ( len == 0 )
 188                 return bufptr;
 189
 190         ber_pvt_sb_buf_destroy( &p->buf_in );
 191
 192         /* Read the length of the packet */
 193         while ( p->sec_buf_in.buf_ptr < 4 ) {
 194                 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base,
 195                         4 - p->sec_buf_in.buf_ptr );
 196 #ifdef EINTR
 197                 if ( ( ret < 0 ) && ( errno == EINTR ) )
 198                         continue;
 199 #endif
 200                 if ( ret <= 0 )
 201                         return ret;
 202
 203                 p->sec_buf_in.buf_ptr += ret;
 204         }
 205
 206         /* The new packet always starts at p->sec_buf_in.buf_base */
 207         ret = sb_sasl_pkt_length( p->sec_buf_in.buf_base,
 208                 sbiod->sbiod_sb->sb_debug );
 209
 210         /* Grow the packet buffer if neccessary */
 211         if ( ( p->sec_buf_in.buf_size < ret ) &&
 212                         ber_pvt_sb_grow_buffer( &p->sec_buf_in, ret ) < 0 ) {
 213                 errno = ENOMEM;
 214                 return -1;
 215         }
 216         p->sec_buf_in.buf_end = ret;
 217
 218         /* Did we read the whole encrypted packet? */
 219         while ( p->sec_buf_in.buf_ptr < p->sec_buf_in.buf_end ) {
 220                 /* No, we have got only a part of it */
 221                 ret = p->sec_buf_in.buf_end - p->sec_buf_in.buf_ptr;
 222
 223                 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
 224                         p->sec_buf_in.buf_ptr, ret );
 225 #ifdef EINTR
 226                 if ( ( ret < 0 ) && ( errno == EINTR ) )
 227                         continue;
 228 #endif
 229                 if ( ret <= 0 )
 230                         return ret;
 231
 232                 p->sec_buf_in.buf_ptr += ret;
 233         }
 234
 235         /* Decode the packet */
 236         ret = sasl_decode( p->sasl_context, p->sec_buf_in.buf_base,
 237                 p->sec_buf_in.buf_end, &p->buf_in.buf_base,
 238                 (unsigned *)&p->buf_in.buf_end );
 239         if ( ret != SASL_OK ) {
 240                 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
 241                         "sb_sasl_read: failed to decode packet: %s\n",
 242                         sasl_errstring( ret, NULL, NULL ) );
 243                 sb_sasl_drop_packet( &p->sec_buf_in,
 244                         sbiod->sbiod_sb->sb_debug );
 245                 errno = EIO;
 246                 return -1;
 247         }
 248
 249         /* Drop the packet from the input buffer */
 250         sb_sasl_drop_packet( &p->sec_buf_in, sbiod->sbiod_sb->sb_debug );
 251
 252         p->buf_in.buf_size = p->buf_in.buf_end;
 253
 254         bufptr += ber_pvt_sb_copy_out( &p->buf_in, (char*) buf + bufptr, len );
 255
 256         return bufptr;
 257 }
 258
 259 static ber_slen_t
 260 sb_sasl_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
 261 {
 262         struct sb_sasl_data     *p;
 263         int                     ret;
 264
 265         assert( sbiod != NULL );
 266         assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
 267
 268         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 269
 270         /* Are there anything left in the buffer? */
 271         if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
 272                 ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
 273                 if ( ret <= 0 )
 274                         return ret;
 275         }
 276
 277         /* now encode the next packet. */
 278         ber_pvt_sb_buf_destroy( &p->buf_out );
 279         ret = sasl_encode( p->sasl_context, buf, len, &p->buf_out.buf_base,
 280                 (unsigned *)&p->buf_out.buf_size );
 281         if ( ret != SASL_OK ) {
 282                 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
 283                         "sb_sasl_write: failed to encode packet: %s\n",
 284                         sasl_errstring( ret, NULL, NULL ) );
 285                 return -1;
 286         }
 287         p->buf_out.buf_end = p->buf_out.buf_size;
 288
 289         ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
 290         if ( ret <= 0 )
 291                 return ret;
 292         return len;
 293 }
 294
 295 static int
 296 sb_sasl_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
 297 {
 298         struct sb_sasl_data     *p;
 299
 300         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 301
 302         if ( opt == LBER_SB_OPT_DATA_READY ) {
 303                 if ( p->buf_in.buf_ptr != p->buf_in.buf_end )
 304                         return 1;
 305         }
 306
 307         return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
 308 }
 309
 310 Sockbuf_IO ldap_pvt_sockbuf_io_sasl = {
 311         sb_sasl_setup,          /* sbi_setup */
 312         sb_sasl_remove,         /* sbi_remove */
 313         sb_sasl_ctrl,           /* sbi_ctrl */
 314         sb_sasl_read,           /* sbi_read */
 315         sb_sasl_write,          /* sbi_write */
 316         NULL                    /* sbi_close */
 317 };
 318
 319 int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
 320 {
 321         Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_install\n",
 322                 0, 0, 0 );
 323
 324         /* don't install the stuff unless security has been negotiated */
 325
 326         if ( !ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO,
 327                         &ldap_pvt_sockbuf_io_sasl ) )
 328                 ber_sockbuf_add_io( sb, &ldap_pvt_sockbuf_io_sasl,
 329                         LBER_SBIOD_LEVEL_APPLICATION, ctx_arg );
 330
 331         return LDAP_SUCCESS;
 332 }
 333
 334 static int
 335 sasl_err2ldap( int saslerr )
 336 {
 337         int rc;
 338
 339         switch (saslerr) {
 340                 case SASL_CONTINUE:
 341                         rc = LDAP_MORE_RESULTS_TO_RETURN;
 342                         break;
 343                 case SASL_OK:
 344                         rc = LDAP_SUCCESS;
 345                         break;
 346                 case SASL_FAIL:
 347                         rc = LDAP_LOCAL_ERROR;
 348                         break;
 349                 case SASL_NOMEM:
 350                         rc = LDAP_NO_MEMORY;
 351                         break;
 352                 case SASL_NOMECH:
 353                         rc = LDAP_AUTH_UNKNOWN;
 354                         break;
 355                 case SASL_BADAUTH:
 356                         rc = LDAP_AUTH_UNKNOWN;
 357                         break;
 358                 case SASL_NOAUTHZ:
 359                         rc = LDAP_PARAM_ERROR;
 360                         break;
 361                 case SASL_TOOWEAK:
 362                 case SASL_ENCRYPT:
 363                         rc = LDAP_AUTH_UNKNOWN;
 364                         break;
 365                 default:
 366                         rc = LDAP_LOCAL_ERROR;
 367                         break;
 368         }
 369
 370         assert( rc == LDAP_SUCCESS || LDAP_API_ERROR( rc ) );
 371         return rc;
 372 }
 373
 374 int
 375 ldap_int_sasl_open(
 376         LDAP *ld,
 377         LDAPConn *lc,
 378         const char * host,
 379         ber_len_t ssf )
 380 {
 381         int rc;
 382         sasl_conn_t *ctx;
 383
 384         sasl_callback_t *session_callbacks =
 385                 ber_memcalloc( 2, sizeof( sasl_callback_t ) );
 386
 387         if( session_callbacks == NULL ) return LDAP_NO_MEMORY;
 388
 389         session_callbacks[0].id = SASL_CB_USER;
 390         session_callbacks[0].proc = NULL;
 391         session_callbacks[0].context = ld;
 392
 393         session_callbacks[1].id = SASL_CB_LIST_END;
 394         session_callbacks[1].proc = NULL;
 395         session_callbacks[1].context = NULL;
 396
 397         assert( lc->lconn_sasl_ctx == NULL );
 398
 399         if ( host == NULL ) {
 400                 ld->ld_errno = LDAP_UNAVAILABLE;
 401                 return ld->ld_errno;
 402         }
 403
 404         rc = sasl_client_new( "ldap", host,
 405                 session_callbacks,
 406 #ifdef LDAP_SASL_SECURITY_LAYER
 407                 SASL_SECURITY_LAYER,
 408 #else
 409                 0,
 410 #endif
 411                 &ctx );
 412
 413         if ( rc != SASL_OK ) {
 414                 ld->ld_errno = sasl_err2ldap( rc );
 415                 return ld->ld_errno;
 416         }
 417
 418         Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_open: %s\n",
 419                 host, 0, 0 );
 420
 421         lc->lconn_sasl_ctx = ctx;
 422
 423         if( ssf ) {
 424                 sasl_external_properties_t extprops;
 425                 memset(&extprops, 0L, sizeof(extprops));
 426                 extprops.ssf = ssf;
 427
 428                 (void) sasl_setprop( ctx, SASL_SSF_EXTERNAL,
 429                         (void *) &extprops );
 430
 431                 Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_open: ssf=%ld\n",
 432                         (long) ssf, 0, 0 );
 433         }
 434
 435         return LDAP_SUCCESS;
 436 }
 437
 438 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
 439 {
 440         sasl_conn_t *ctx = lc->lconn_sasl_ctx;
 441         assert( ctx != NULL );
 442
 443         if( ctx ) {
 444                 sasl_dispose( &ctx );
 445                 lc->lconn_sasl_ctx = NULL;
 446         }
 447
 448         return LDAP_SUCCESS;
 449 }
 450
 451 int
 452 ldap_int_sasl_bind(
 453         LDAP                    *ld,
 454         const char              *dn,
 455         const char              *mechs,
 456         LDAPControl             **sctrls,
 457         LDAPControl             **cctrls )
 458 {
 459         char *data;
 460         const char *mech = NULL;
 461         const char *pmech = NULL;
 462         int                     saslrc, rc;
 463         sasl_ssf_t              *ssf = NULL;
 464         sasl_conn_t     *ctx;
 465         sasl_interact_t *prompts = NULL;
 466         unsigned credlen;
 467         struct berval ccred, *scred;
 468         ber_socket_t            sd;
 469
 470         Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_bind: %s\n",
 471                 mechs ? mechs : "<null>", 0, 0 );
 472
 473         /* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
 474         if (ld->ld_version < LDAP_VERSION3) {
 475                 ld->ld_errno = LDAP_NOT_SUPPORTED;
 476                 return ld->ld_errno;
 477         }
 478
 479         ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
 480
 481         if ( sd == AC_SOCKET_INVALID ) {
 482                 /* not connected yet */
 483                 int rc = ldap_open_defconn( ld );
 484
 485                 if( rc < 0 ) return ld->ld_errno;
 486                 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
 487
 488                 if( sd == AC_SOCKET_INVALID ) {
 489                         ld->ld_errno = LDAP_UNAVAILABLE;
 490                         return ld->ld_errno;
 491                 }
 492         }
 493
 494         ctx = ld->ld_defconn->lconn_sasl_ctx;
 495
 496         if( ctx == NULL ) {
 497                 ld->ld_errno = LDAP_UNAVAILABLE;
 498                 return ld->ld_errno;
 499         }
 500
 501         /* (re)set security properties */
 502         sasl_setprop( ctx, SASL_SEC_PROPS,
 503                 &ld->ld_options.ldo_sasl_secprops );
 504
 505         ccred.bv_val = NULL;
 506         ccred.bv_len = 0;
 507
 508         do {
 509                 saslrc = sasl_client_start( ctx,
 510                         mechs,
 511                         NULL,
 512                         &prompts,
 513                         &ccred.bv_val,
 514                         &credlen,
 515                         &mech );
 516
 517                 if( pmech == NULL && mech != NULL ) {
 518                         pmech = mech;
 519
 520                         fprintf(stderr,
 521                                 "SASL/%s authentication started\n",
 522                                 pmech );
 523                 }
 524
 525                 if( saslrc == SASL_INTERACT ) {
 526                         fprintf(stderr, "SASL Interacting\n");
 527                         if( !ld->ld_options.ldo_sasl_interact ) break;
 528
 529                         rc = (ld->ld_options.ldo_sasl_interact)( ld, prompts );
 530                         if( rc != LDAP_SUCCESS ) {
 531                                 break;
 532                         }
 533                 }
 534         } while ( saslrc == SASL_INTERACT );
 535
 536         ccred.bv_len = credlen;
 537
 538         if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
 539                 ld->ld_errno = sasl_err2ldap( saslrc );
 540                 return ld->ld_errno;
 541         }
 542
 543         scred = NULL;
 544
 545         do {
 546                 unsigned credlen;
 547
 548                 rc = ldap_sasl_bind_s( ld, dn, mech, &ccred, sctrls, cctrls, &scred );
 549
 550                 if ( rc == LDAP_SUCCESS ) {
 551                         break;
 552                 } else if ( rc != LDAP_SASL_BIND_IN_PROGRESS ) {
 553                         if ( ccred.bv_val != NULL ) {
 554                                 LDAP_FREE( ccred.bv_val );
 555                         }
 556                         return ld->ld_errno;
 557                 }
 558
 559                 if ( ccred.bv_val != NULL ) {
 560                         LDAP_FREE( ccred.bv_val );
 561                         ccred.bv_val = NULL;
 562                 }
 563
 564                 do {
 565                         saslrc = sasl_client_step( ctx,
 566                                 (scred == NULL) ? NULL : scred->bv_val,
 567                                 (scred == NULL) ? 0 : scred->bv_len,
 568                                 &prompts,
 569                                 &ccred.bv_val,
 570                                 &credlen );
 571
 572                         Debug( LDAP_DEBUG_TRACE, "sasl_client_start: %d\n",
 573                                 saslrc, 0, 0 );
 574
 575                         if( saslrc == SASL_INTERACT ) {
 576                                 int res;
 577                                 fprintf(stderr, "SASL Interacting\n");
 578                                 if( !ld->ld_options.ldo_sasl_interact ) break;
 579
 580                                 res = (ld->ld_options.ldo_sasl_interact)( ld, prompts );
 581                                 if( res != LDAP_SUCCESS ) {
 582                                         break;
 583                                 }
 584                         }
 585                 } while ( saslrc == SASL_INTERACT );
 586
 587                 ccred.bv_len = credlen;
 588                 ber_bvfree( scred );
 589
 590                 if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
 591                         ld->ld_errno = sasl_err2ldap( saslrc );
 592                         return ld->ld_errno;
 593                 }
 594         } while ( rc == LDAP_SASL_BIND_IN_PROGRESS );
 595
 596         assert ( rc == LDAP_SUCCESS );
 597
 598         /* likely should add a quiet option */
 599
 600         saslrc = sasl_getprop( ctx, SASL_USERNAME, (void **) &data );
 601         if( saslrc == SASL_OK ) {
 602                 fprintf( stderr, "SASL username: %s\n", data );
 603         }
 604
 605         saslrc = sasl_getprop( ctx, SASL_REALM, (void **) &data );
 606         if( saslrc == SASL_OK ) {
 607                 fprintf( stderr, "SASL realm: %s\n", data );
 608         }
 609
 610         saslrc = sasl_getprop( ctx, SASL_SSF, (void **) &ssf );
 611         if( saslrc == SASL_OK ) {
 612                 fprintf( stderr, "SASL SSF: %lu\n",
 613                         (unsigned long) *ssf );
 614
 615 #ifdef LDAP_SASL_SECURITY_LAYER
 616                 if( ssf && *ssf ) {
 617                         fprintf( stderr, "SASL installing layers\n" );
 618                         ldap_pvt_sasl_install( ld->ld_sb, ctx );
 619                 }
 620 #endif
 621         }
 622
 623         return rc;
 624 }
 625
 626 int ldap_pvt_sasl_secprops(
 627         const char *in,
 628         sasl_security_properties_t *secprops )
 629 {
 630         int i;
 631         char **props = ldap_str2charray( in, "," );
 632         unsigned sflags = 0;
 633         int got_sflags = 0;
 634         sasl_ssf_t max_ssf;
 635         int got_max_ssf = 0;
 636         sasl_ssf_t min_ssf;
 637         int got_min_ssf = 0;
 638         unsigned maxbufsize;
 639         int got_maxbufsize = 0;
 640
 641         if( props == NULL || secprops == NULL ) {
 642                 return LDAP_PARAM_ERROR;
 643         }
 644
 645         for( i=0; props[i]; i++ ) {
 646                 if( !strcasecmp(props[i], "none") ) {
 647                         got_sflags++;
 648
 649                 } else if( !strcasecmp(props[i], "noplain") ) {
 650                         got_sflags++;
 651                         sflags |= SASL_SEC_NOPLAINTEXT;
 652
 653                 } else if( !strcasecmp(props[i], "noactive") ) {
 654                         got_sflags++;
 655                         sflags |= SASL_SEC_NOACTIVE;
 656
 657                 } else if( !strcasecmp(props[i], "nodict") ) {
 658                         got_sflags++;
 659                         sflags |= SASL_SEC_NODICTIONARY;
 660
 661                 } else if( !strcasecmp(props[i], "forwardsec") ) {
 662                         got_sflags++;
 663                         sflags |= SASL_SEC_FORWARD_SECRECY;
 664
 665                 } else if( !strcasecmp(props[i], "noanonymous")) {
 666                         got_sflags++;
 667                         sflags |= SASL_SEC_NOANONYMOUS;
 668
 669                 } else if( !strcasecmp(props[i], "passcred") ) {
 670                         got_sflags++;
 671                         sflags |= SASL_SEC_PASS_CREDENTIALS;
 672
 673                 } else if( !strncasecmp(props[i],
 674                         "minssf=", sizeof("minssf")) )
 675                 {
 676                         if( isdigit( props[i][sizeof("minssf")] ) ) {
 677                                 got_max_ssf++;
 678                                 min_ssf = atoi( &props[i][sizeof("minssf")] );
 679                         } else {
 680                                 return LDAP_NOT_SUPPORTED;
 681                         }
 682
 683                 } else if( !strncasecmp(props[i],
 684                         "maxssf=", sizeof("maxssf")) )
 685                 {
 686                         if( isdigit( props[i][sizeof("maxssf")] ) ) {
 687                                 got_max_ssf++;
 688                                 max_ssf = atoi( &props[i][sizeof("maxssf")] );
 689                         } else {
 690                                 return LDAP_NOT_SUPPORTED;
 691                         }
 692
 693                 } else if( !strncasecmp(props[i],
 694                         "maxbufsize=", sizeof("maxbufsize")) )
 695                 {
 696                         if( isdigit( props[i][sizeof("maxbufsize")] ) ) {
 697                                 got_maxbufsize++;
 698                                 maxbufsize = atoi( &props[i][sizeof("maxbufsize")] );
 699                         } else {
 700                                 return LDAP_NOT_SUPPORTED;
 701                         }
 702
 703                 } else {
 704                         return LDAP_NOT_SUPPORTED;
 705                 }
 706         }
 707
 708         if(got_sflags) {
 709                 secprops->security_flags = sflags;
 710         }
 711         if(got_min_ssf) {
 712                 secprops->min_ssf = min_ssf;
 713         }
 714         if(got_max_ssf) {
 715                 secprops->max_ssf = max_ssf;
 716         }
 717         if(got_maxbufsize) {
 718                 secprops->maxbufsize = maxbufsize;
 719         }
 720
 721         ldap_charray_free( props );
 722         return LDAP_SUCCESS;
 723 }
 724
 725 int
 726 ldap_int_sasl_config( struct ldapoptions *lo, int option, const char *arg )
 727 {
 728         int rc;
 729
 730         switch( option ) {
 731         case LDAP_OPT_X_SASL_SECPROPS:
 732                 rc = ldap_pvt_sasl_secprops( arg, &lo->ldo_sasl_secprops );
 733                 if( rc == LDAP_SUCCESS ) return 0;
 734         }
 735
 736         return -1;
 737 }
 738
 739 int
 740 ldap_int_sasl_get_option( LDAP *ld, int option, void *arg )
 741 {
 742         if ( ld == NULL )
 743                 return -1;
 744
 745         switch ( option ) {
 746                 case LDAP_OPT_X_SASL_SSF: {
 747                         int sc;
 748                         sasl_ssf_t      *ssf;
 749                         sasl_conn_t *ctx;
 750
 751                         if( ld->ld_defconn == NULL ) {
 752                                 return -1;
 753                         }
 754
 755                         ctx = ld->ld_defconn->lconn_sasl_ctx;
 756
 757                         if ( ctx == NULL ) {
 758                                 return -1;
 759                         }
 760
 761                         sc = sasl_getprop( ctx, SASL_SSF,
 762                                 (void **) &ssf );
 763
 764                         if ( sc != SASL_OK ) {
 765                                 return -1;
 766                         }
 767
 768                         *(ber_len_t *)arg = *ssf;
 769                 } break;
 770
 771                 case LDAP_OPT_X_SASL_SSF_EXTERNAL:
 772                         /* this option is write only */
 773                         return -1;
 774
 775                 case LDAP_OPT_X_SASL_SSF_MIN:
 776                         *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.min_ssf;
 777                         break;
 778                 case LDAP_OPT_X_SASL_SSF_MAX:
 779                         *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.max_ssf;
 780                         break;
 781                 case LDAP_OPT_X_SASL_MAXBUFSIZE:
 782                         *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.maxbufsize;
 783                         break;
 784
 785                 case LDAP_OPT_X_SASL_SECPROPS:
 786                         /* this option is write only */
 787                         return -1;
 788
 789                 default:
 790                         return -1;
 791         }
 792         return 0;
 793 }
 794
 795 int
 796 ldap_int_sasl_set_option( LDAP *ld, int option, void *arg )
 797 {
 798         if ( ld == NULL )
 799                 return -1;
 800
 801         switch ( option ) {
 802         case LDAP_OPT_X_SASL_SSF:
 803                 /* This option is read-only */
 804                 return -1;
 805
 806         case LDAP_OPT_X_SASL_SSF_EXTERNAL: {
 807                 int sc;
 808                 sasl_external_properties_t extprops;
 809                 sasl_conn_t *ctx;
 810
 811                 if( ld->ld_defconn == NULL ) {
 812                         return -1;
 813                 }
 814
 815                 ctx = ld->ld_defconn->lconn_sasl_ctx;
 816
 817                 if ( ctx == NULL ) {
 818                         return -1;
 819                 }
 820
 821                 memset(&extprops, 0L, sizeof(extprops));
 822
 823                 extprops.ssf = * (ber_len_t *) arg;
 824
 825                 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
 826                         (void *) &extprops );
 827
 828                 if ( sc != SASL_OK ) {
 829                         return -1;
 830                 }
 831                 } break;
 832
 833         case LDAP_OPT_X_SASL_SSF_MIN:
 834                 ld->ld_options.ldo_sasl_secprops.min_ssf = *(ber_len_t *)arg;
 835                 break;
 836         case LDAP_OPT_X_SASL_SSF_MAX:
 837                 ld->ld_options.ldo_sasl_secprops.max_ssf = *(ber_len_t *)arg;
 838                 break;
 839         case LDAP_OPT_X_SASL_MAXBUFSIZE:
 840                 ld->ld_options.ldo_sasl_secprops.maxbufsize = *(ber_len_t *)arg;
 841                 break;
 842
 843         case LDAP_OPT_X_SASL_SECPROPS: {
 844                 int sc;
 845                 sc = ldap_pvt_sasl_secprops( (char *) arg,
 846                         &ld->ld_options.ldo_sasl_secprops );
 847
 848                 return sc == LDAP_SUCCESS ? 0 : -1;
 849                 }
 850
 851         default:
 852                 return -1;
 853         }
 854         return 0;
 855 }
 856
 857 #ifdef LDAP_R_COMPILE
 858 void *ldap_pvt_sasl_mutex_new(void)
 859 {
 860         ldap_pvt_thread_mutex_t *mutex;
 861
 862         mutex = (ldap_pvt_thread_mutex_t *) LDAP_MALLOC(
 863                 sizeof(ldap_pvt_thread_mutex_t) );
 864
 865         if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
 866                 return mutex;
 867         }
 868         return NULL;
 869 }
 870
 871 int ldap_pvt_sasl_mutex_lock(void *mutex)
 872 {
 873         return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex )
 874                 ? SASL_FAIL : SASL_OK;
 875 }
 876
 877 int ldap_pvt_sasl_mutex_unlock(void *mutex)
 878 {
 879         return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex )
 880                 ? SASL_FAIL : SASL_OK;
 881 }
 882
 883 void ldap_pvt_sasl_mutex_dispose(void *mutex)
 884 {
 885         (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
 886         LDAP_FREE( mutex );
 887 }
 888 #endif
 889
 890 #else
 891 int ldap_int_sasl_init( void )
 892 { return LDAP_SUCCESS; }
 893
 894 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
 895 { return LDAP_SUCCESS; }
 896
 897 int
 898 ldap_int_sasl_bind(
 899         LDAP                    *ld,
 900         const char              *dn,
 901         const char              *mechs,
 902         LDAPControl             **sctrls,
 903         LDAPControl             **cctrls )
 904 { return LDAP_NOT_SUPPORTED; }
 905 #endif /* HAVE_CYRUS_SASL */