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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15
  16 #include "portable.h"
  17
  18 #include <stdio.h>
  19
  20 #include <ac/socket.h>
  21 #include <ac/stdlib.h>
  22 #include <ac/string.h>
  23 #include <ac/time.h>
  24 #include <ac/errno.h>
  25 #include <ac/ctype.h>
  26 #include <ac/unistd.h>
  27
  28 #include "ldap-int.h"
  29
  30 #ifdef HAVE_CYRUS_SASL
  31
  32 #ifdef LDAP_R_COMPILE
  33 ldap_pvt_thread_mutex_t ldap_int_sasl_mutex;
  34 #endif
  35
  36 #ifdef HAVE_SASL_SASL_H
  37 #include <sasl/sasl.h>
  38 #else
  39 #include <sasl.h>
  40 #endif
  41
  42 #if SASL_VERSION_MAJOR >= 2
  43 #define SASL_CONST const
  44 #else
  45 #define SASL_CONST
  46 #endif
  47
  48 /*
  49 * Various Cyrus SASL related stuff.
  50 */
  51
  52 static const sasl_callback_t client_callbacks[] = {
  53 #ifdef SASL_CB_GETREALM
  54         { SASL_CB_GETREALM, NULL, NULL },
  55 #endif
  56         { SASL_CB_USER, NULL, NULL },
  57         { SASL_CB_AUTHNAME, NULL, NULL },
  58         { SASL_CB_PASS, NULL, NULL },
  59         { SASL_CB_ECHOPROMPT, NULL, NULL },
  60         { SASL_CB_NOECHOPROMPT, NULL, NULL },
  61         { SASL_CB_LIST_END, NULL, NULL }
  62 };
  63
  64 int ldap_int_sasl_init( void )
  65 {
  66         /* XXX not threadsafe */
  67         static int sasl_initialized = 0;
  68
  69 #ifdef HAVE_SASL_VERSION
  70         /* stringify the version number, sasl.h doesn't do it for us */
  71 #define VSTR0(maj, min, pat)    #maj "." #min "." #pat
  72 #define VSTR(maj, min, pat)     VSTR0(maj, min, pat)
  73 #define SASL_VERSION_STRING     VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
  74                                 SASL_VERSION_STEP)
  75         { int rc;
  76         sasl_version( NULL, &rc );
  77         if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
  78                 (rc & 0xffff) < SASL_VERSION_STEP) {
  79                 char version[sizeof("xxx.xxx.xxxxx")];
  80                 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
  81                         rc & 0xffff );
  82
  83                 Debug( LDAP_DEBUG_ANY,
  84                 "ldap_int_sasl_init: SASL library version mismatch:"
  85                 " expected " SASL_VERSION_STRING ","
  86                 " got %s\n", version, 0, 0 );
  87                 return -1;
  88         }
  89         }
  90 #endif
  91         if ( sasl_initialized ) {
  92                 return 0;
  93         }
  94
  95 /* SASL 2 takes care of its own memory completely internally */
  96 #if SASL_VERSION_MAJOR < 2 && !defined(CSRIMALLOC)
  97         sasl_set_alloc(
  98                 ber_memalloc,
  99                 ber_memcalloc,
 100                 ber_memrealloc,
 101                 ber_memfree );
 102 #endif /* CSRIMALLOC */
 103
 104 #ifdef LDAP_R_COMPILE
 105         sasl_set_mutex(
 106                 ldap_pvt_sasl_mutex_new,
 107                 ldap_pvt_sasl_mutex_lock,
 108                 ldap_pvt_sasl_mutex_unlock,
 109                 ldap_pvt_sasl_mutex_dispose );
 110 #endif
 111
 112         if ( sasl_client_init( NULL ) == SASL_OK ) {
 113                 sasl_initialized = 1;
 114                 return 0;
 115         }
 116
 117 #if SASL_VERSION_MAJOR < 2
 118         /* A no-op to make sure we link with Cyrus 1.5 */
 119         sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
 120 #endif
 121         return -1;
 122 }
 123
 124 /*
 125  * SASL encryption support for LBER Sockbufs
 126  */
 127
 128 struct sb_sasl_data {
 129         sasl_conn_t             *sasl_context;
 130         unsigned                *sasl_maxbuf;
 131         Sockbuf_Buf             sec_buf_in;
 132         Sockbuf_Buf             buf_in;
 133         Sockbuf_Buf             buf_out;
 134 };
 135
 136 static int
 137 sb_sasl_setup( Sockbuf_IO_Desc *sbiod, void *arg )
 138 {
 139         struct sb_sasl_data     *p;
 140
 141         assert( sbiod != NULL );
 142
 143         p = LBER_MALLOC( sizeof( *p ) );
 144         if ( p == NULL )
 145                 return -1;
 146         p->sasl_context = (sasl_conn_t *)arg;
 147         ber_pvt_sb_buf_init( &p->sec_buf_in );
 148         ber_pvt_sb_buf_init( &p->buf_in );
 149         ber_pvt_sb_buf_init( &p->buf_out );
 150         if ( ber_pvt_sb_grow_buffer( &p->sec_buf_in, SASL_MIN_BUFF_SIZE ) < 0 ) {
 151                 LBER_FREE( p );
 152                 errno = ENOMEM;
 153                 return -1;
 154         }
 155         sasl_getprop( p->sasl_context, SASL_MAXOUTBUF,
 156                 (SASL_CONST void **) &p->sasl_maxbuf );
 157
 158         sbiod->sbiod_pvt = p;
 159
 160         return 0;
 161 }
 162
 163 static int
 164 sb_sasl_remove( Sockbuf_IO_Desc *sbiod )
 165 {
 166         struct sb_sasl_data     *p;
 167
 168         assert( sbiod != NULL );
 169
 170         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 171 #if SASL_VERSION_MAJOR >= 2
 172         /*
 173          * SASLv2 encode/decode buffers are managed by
 174          * libsasl2. Ensure they are not freed by liblber.
 175          */
 176         p->buf_in.buf_base = NULL;
 177         p->buf_out.buf_base = NULL;
 178 #endif
 179         ber_pvt_sb_buf_destroy( &p->sec_buf_in );
 180         ber_pvt_sb_buf_destroy( &p->buf_in );
 181         ber_pvt_sb_buf_destroy( &p->buf_out );
 182         LBER_FREE( p );
 183         sbiod->sbiod_pvt = NULL;
 184         return 0;
 185 }
 186
 187 static ber_len_t
 188 sb_sasl_pkt_length( const unsigned char *buf, int debuglevel )
 189 {
 190         ber_len_t               size;
 191
 192         assert( buf != NULL );
 193
 194         size = buf[0] << 24
 195                 | buf[1] << 16
 196                 | buf[2] << 8
 197                 | buf[3];
 198
 199         if ( size > SASL_MAX_BUFF_SIZE ) {
 200                 /* somebody is trying to mess me up. */
 201                 ber_log_printf( LDAP_DEBUG_ANY, debuglevel,
 202                         "sb_sasl_pkt_length: received illegal packet length "
 203                         "of %lu bytes\n", (unsigned long)size );
 204                 size = 16; /* this should lead to an error. */
 205         }
 206
 207         return size + 4; /* include the size !!! */
 208 }
 209
 210 /* Drop a processed packet from the input buffer */
 211 static void
 212 sb_sasl_drop_packet ( Sockbuf_Buf *sec_buf_in, int debuglevel )
 213 {
 214         ber_slen_t                      len;
 215
 216         len = sec_buf_in->buf_ptr - sec_buf_in->buf_end;
 217         if ( len > 0 )
 218                 AC_MEMCPY( sec_buf_in->buf_base, sec_buf_in->buf_base +
 219                         sec_buf_in->buf_end, len );
 220
 221         if ( len >= 4 ) {
 222                 sec_buf_in->buf_end = sb_sasl_pkt_length(
 223                         (unsigned char *) sec_buf_in->buf_base, debuglevel);
 224         }
 225         else {
 226                 sec_buf_in->buf_end = 0;
 227         }
 228         sec_buf_in->buf_ptr = len;
 229 }
 230
 231 static ber_slen_t
 232 sb_sasl_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
 233 {
 234         struct sb_sasl_data     *p;
 235         ber_slen_t              ret, bufptr;
 236
 237         assert( sbiod != NULL );
 238         assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
 239
 240         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 241
 242         /* Are there anything left in the buffer? */
 243         ret = ber_pvt_sb_copy_out( &p->buf_in, buf, len );
 244         bufptr = ret;
 245         len -= ret;
 246
 247         if ( len == 0 )
 248                 return bufptr;
 249
 250 #if SASL_VERSION_MAJOR >= 2
 251         ber_pvt_sb_buf_init( &p->buf_in );
 252 #else
 253         ber_pvt_sb_buf_destroy( &p->buf_in );
 254 #endif
 255
 256         /* Read the length of the packet */
 257         while ( p->sec_buf_in.buf_ptr < 4 ) {
 258                 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
 259                         p->sec_buf_in.buf_ptr,
 260                         4 - p->sec_buf_in.buf_ptr );
 261 #ifdef EINTR
 262                 if ( ( ret < 0 ) && ( errno == EINTR ) )
 263                         continue;
 264 #endif
 265                 if ( ret <= 0 )
 266                         return bufptr ? bufptr : ret;
 267
 268                 p->sec_buf_in.buf_ptr += ret;
 269         }
 270
 271         /* The new packet always starts at p->sec_buf_in.buf_base */
 272         ret = sb_sasl_pkt_length( (unsigned char *) p->sec_buf_in.buf_base,
 273                 sbiod->sbiod_sb->sb_debug );
 274
 275         /* Grow the packet buffer if neccessary */
 276         if ( ( p->sec_buf_in.buf_size < (ber_len_t) ret ) &&
 277                 ber_pvt_sb_grow_buffer( &p->sec_buf_in, ret ) < 0 )
 278         {
 279                 errno = ENOMEM;
 280                 return -1;
 281         }
 282         p->sec_buf_in.buf_end = ret;
 283
 284         /* Did we read the whole encrypted packet? */
 285         while ( p->sec_buf_in.buf_ptr < p->sec_buf_in.buf_end ) {
 286                 /* No, we have got only a part of it */
 287                 ret = p->sec_buf_in.buf_end - p->sec_buf_in.buf_ptr;
 288
 289                 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
 290                         p->sec_buf_in.buf_ptr, ret );
 291 #ifdef EINTR
 292                 if ( ( ret < 0 ) && ( errno == EINTR ) )
 293                         continue;
 294 #endif
 295                 if ( ret <= 0 )
 296                         return bufptr ? bufptr : ret;
 297
 298                 p->sec_buf_in.buf_ptr += ret;
 299         }
 300
 301         /* Decode the packet */
 302         {
 303                 unsigned tmpsize = p->buf_in.buf_end;
 304                 ret = sasl_decode( p->sasl_context, p->sec_buf_in.buf_base,
 305                         p->sec_buf_in.buf_end,
 306                         (SASL_CONST char **)&p->buf_in.buf_base,
 307                         (unsigned *)&tmpsize );
 308                 p->buf_in.buf_end = tmpsize;
 309         }
 310
 311         /* Drop the packet from the input buffer */
 312         sb_sasl_drop_packet( &p->sec_buf_in, sbiod->sbiod_sb->sb_debug );
 313
 314         if ( ret != SASL_OK ) {
 315                 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
 316                         "sb_sasl_read: failed to decode packet: %s\n",
 317                         sasl_errstring( ret, NULL, NULL ) );
 318                 errno = EIO;
 319                 return -1;
 320         }
 321
 322         p->buf_in.buf_size = p->buf_in.buf_end;
 323
 324         bufptr += ber_pvt_sb_copy_out( &p->buf_in, (char*) buf + bufptr, len );
 325
 326         return bufptr;
 327 }
 328
 329 static ber_slen_t
 330 sb_sasl_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
 331 {
 332         struct sb_sasl_data     *p;
 333         int                     ret;
 334
 335         assert( sbiod != NULL );
 336         assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
 337
 338         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 339
 340         /* Are there anything left in the buffer? */
 341         if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
 342                 ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
 343                 if ( ret < 0 ) return ret;
 344
 345                 /* Still have something left?? */
 346                 if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
 347                         errno = EAGAIN;
 348                         return -1;
 349                 }
 350         }
 351
 352         /* now encode the next packet. */
 353 #if SASL_VERSION_MAJOR >= 2
 354         ber_pvt_sb_buf_init( &p->buf_out );
 355 #else
 356         ber_pvt_sb_buf_destroy( &p->buf_out );
 357 #endif
 358         if ( len > *p->sasl_maxbuf - 100 ) {
 359                 len = *p->sasl_maxbuf - 100;    /* For safety margin */
 360         }
 361
 362         {
 363                 unsigned tmpsize = p->buf_out.buf_size;
 364                 ret = sasl_encode( p->sasl_context, buf, len,
 365                         (SASL_CONST char **)&p->buf_out.buf_base,
 366                         &tmpsize );
 367                 p->buf_out.buf_size = tmpsize;
 368         }
 369
 370         if ( ret != SASL_OK ) {
 371                 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
 372                         "sb_sasl_write: failed to encode packet: %s\n",
 373                         sasl_errstring( ret, NULL, NULL ) );
 374                 errno = EIO;
 375                 return -1;
 376         }
 377         p->buf_out.buf_end = p->buf_out.buf_size;
 378
 379         ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
 380
 381         /* return number of bytes encoded, not written, to ensure
 382          * no byte is encoded twice (even if only sent once).
 383          */
 384         return len;
 385 }
 386
 387 static int
 388 sb_sasl_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
 389 {
 390         struct sb_sasl_data     *p;
 391
 392         p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
 393
 394         if ( opt == LBER_SB_OPT_DATA_READY ) {
 395                 if ( p->buf_in.buf_ptr != p->buf_in.buf_end ) return 1;
 396         }
 397
 398         return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
 399 }
 400
 401 Sockbuf_IO ldap_pvt_sockbuf_io_sasl = {
 402         sb_sasl_setup,          /* sbi_setup */
 403         sb_sasl_remove,         /* sbi_remove */
 404         sb_sasl_ctrl,           /* sbi_ctrl */
 405         sb_sasl_read,           /* sbi_read */
 406         sb_sasl_write,          /* sbi_write */
 407         NULL                    /* sbi_close */
 408 };
 409
 410 int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
 411 {
 412         Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_install\n",
 413                 0, 0, 0 );
 414
 415         /* don't install the stuff unless security has been negotiated */
 416
 417         if ( !ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO,
 418                         &ldap_pvt_sockbuf_io_sasl ) )
 419         {
 420 #ifdef LDAP_DEBUG
 421                 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
 422                         LBER_SBIOD_LEVEL_APPLICATION, (void *)"sasl_" );
 423 #endif
 424                 ber_sockbuf_add_io( sb, &ldap_pvt_sockbuf_io_sasl,
 425                         LBER_SBIOD_LEVEL_APPLICATION, ctx_arg );
 426         }
 427
 428         return LDAP_SUCCESS;
 429 }
 430
 431 void ldap_pvt_sasl_remove( Sockbuf *sb )
 432 {
 433         ber_sockbuf_remove_io( sb, &ldap_pvt_sockbuf_io_sasl,
 434                 LBER_SBIOD_LEVEL_APPLICATION );
 435 #ifdef LDAP_DEBUG
 436         ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
 437                 LBER_SBIOD_LEVEL_APPLICATION );
 438 #endif
 439 }
 440
 441 static int
 442 sasl_err2ldap( int saslerr )
 443 {
 444         int rc;
 445
 446         switch (saslerr) {
 447                 case SASL_CONTINUE:
 448                         rc = LDAP_MORE_RESULTS_TO_RETURN;
 449                         break;
 450                 case SASL_INTERACT:
 451                         rc = LDAP_LOCAL_ERROR;
 452                         break;
 453                 case SASL_OK:
 454                         rc = LDAP_SUCCESS;
 455                         break;
 456                 case SASL_FAIL:
 457                         rc = LDAP_LOCAL_ERROR;
 458                         break;
 459                 case SASL_NOMEM:
 460                         rc = LDAP_NO_MEMORY;
 461                         break;
 462                 case SASL_NOMECH:
 463                         rc = LDAP_AUTH_UNKNOWN;
 464                         break;
 465                 case SASL_BADAUTH:
 466                         rc = LDAP_AUTH_UNKNOWN;
 467                         break;
 468                 case SASL_NOAUTHZ:
 469                         rc = LDAP_PARAM_ERROR;
 470                         break;
 471                 case SASL_TOOWEAK:
 472                 case SASL_ENCRYPT:
 473                         rc = LDAP_AUTH_UNKNOWN;
 474                         break;
 475                 default:
 476                         rc = LDAP_LOCAL_ERROR;
 477                         break;
 478         }
 479
 480         assert( rc == LDAP_SUCCESS || LDAP_API_ERROR( rc ) );
 481         return rc;
 482 }
 483
 484 int
 485 ldap_int_sasl_open(
 486         LDAP *ld,
 487         LDAPConn *lc,
 488         const char * host )
 489 {
 490         int rc;
 491         sasl_conn_t *ctx;
 492
 493         assert( lc->lconn_sasl_authctx == NULL );
 494
 495         if ( host == NULL ) {
 496                 ld->ld_errno = LDAP_LOCAL_ERROR;
 497                 return ld->ld_errno;
 498         }
 499
 500         if ( ldap_int_sasl_init() ) {
 501                 ld->ld_errno = LDAP_LOCAL_ERROR;
 502                 return ld->ld_errno;
 503         }
 504
 505 #if SASL_VERSION_MAJOR >= 2
 506         rc = sasl_client_new( "ldap", host, NULL, NULL,
 507                 client_callbacks, 0, &ctx );
 508 #else
 509         rc = sasl_client_new( "ldap", host, client_callbacks,
 510                 SASL_SECURITY_LAYER, &ctx );
 511 #endif
 512
 513         if ( rc != SASL_OK ) {
 514                 ld->ld_errno = sasl_err2ldap( rc );
 515                 return ld->ld_errno;
 516         }
 517
 518         Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_open: host=%s\n",
 519                 host, 0, 0 );
 520
 521         lc->lconn_sasl_authctx = ctx;
 522
 523         return LDAP_SUCCESS;
 524 }
 525
 526 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
 527 {
 528         sasl_conn_t *ctx = lc->lconn_sasl_authctx;
 529
 530         if( ctx != NULL ) {
 531                 sasl_dispose( &ctx );
 532                 if ( lc->lconn_sasl_sockctx &&
 533                         lc->lconn_sasl_authctx != lc->lconn_sasl_sockctx ) {
 534                         ctx = lc->lconn_sasl_sockctx;
 535                         sasl_dispose( &ctx );
 536                 }
 537                 lc->lconn_sasl_sockctx = NULL;
 538                 lc->lconn_sasl_authctx = NULL;
 539         }
 540
 541         return LDAP_SUCCESS;
 542 }
 543
 544 int
 545 ldap_int_sasl_bind(
 546         LDAP                    *ld,
 547         const char              *dn,
 548         const char              *mechs,
 549         LDAPControl             **sctrls,
 550         LDAPControl             **cctrls,
 551         unsigned                flags,
 552         LDAP_SASL_INTERACT_PROC *interact,
 553         void * defaults )
 554 {
 555         char *data;
 556         const char *mech = NULL;
 557         const char *pmech = NULL;
 558         int                     saslrc, rc;
 559         sasl_ssf_t              *ssf = NULL;
 560         sasl_conn_t     *ctx, *oldctx = NULL;
 561         sasl_interact_t *prompts = NULL;
 562         unsigned credlen;
 563         struct berval ccred;
 564         ber_socket_t            sd;
 565         void    *ssl;
 566
 567         Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_bind: %s\n",
 568                 mechs ? mechs : "<null>", 0, 0 );
 569
 570         /* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
 571         if (ld->ld_version < LDAP_VERSION3) {
 572                 ld->ld_errno = LDAP_NOT_SUPPORTED;
 573                 return ld->ld_errno;
 574         }
 575
 576         ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
 577
 578         if ( sd == AC_SOCKET_INVALID ) {
 579                 /* not connected yet */
 580                 int rc;
 581
 582                 rc = ldap_open_defconn( ld );
 583                 if( rc < 0 ) return ld->ld_errno;
 584
 585                 ber_sockbuf_ctrl( ld->ld_defconn->lconn_sb, LBER_SB_OPT_GET_FD, &sd );
 586
 587                 if( sd == AC_SOCKET_INVALID ) {
 588                         ld->ld_errno = LDAP_LOCAL_ERROR;
 589                         return ld->ld_errno;
 590                 }
 591         }
 592
 593         oldctx = ld->ld_defconn->lconn_sasl_authctx;
 594
 595         /* If we already have an authentication context, clear it out */
 596         if( oldctx ) {
 597                 if ( oldctx != ld->ld_defconn->lconn_sasl_sockctx ) {
 598                         sasl_dispose( &oldctx );
 599                 }
 600                 ld->ld_defconn->lconn_sasl_authctx = NULL;
 601         }
 602
 603         { char *saslhost = ldap_host_connected_to( ld->ld_defconn->lconn_sb, "localhost" );
 604         rc = ldap_int_sasl_open( ld, ld->ld_defconn, saslhost );
 605         LDAP_FREE( saslhost );
 606         }
 607
 608         if ( rc != LDAP_SUCCESS ) return rc;
 609
 610         ctx = ld->ld_defconn->lconn_sasl_authctx;
 611
 612         /* Check for TLS */
 613         ssl = ldap_pvt_tls_sb_ctx( ld->ld_defconn->lconn_sb );
 614         if ( ssl ) {
 615                 struct berval authid = BER_BVNULL;
 616                 ber_len_t fac;
 617
 618                 fac = ldap_pvt_tls_get_strength( ssl );
 619                 /* failure is OK, we just can't use SASL EXTERNAL */
 620                 (void) ldap_pvt_tls_get_my_dn( ssl, &authid, NULL, 0 );
 621
 622                 (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid.bv_val, fac );
 623                 LDAP_FREE( authid.bv_val );
 624         }
 625
 626 #if !defined(_WIN32)
 627         /* Check for local */
 628         if ( ldap_pvt_url_scheme2proto( ld->ld_defconn->lconn_server->lud_scheme ) == LDAP_PROTO_IPC ) {
 629                 char authid[sizeof("uidNumber=4294967295+gidNumber=4294967295,"
 630                         "cn=peercred,cn=external,cn=auth")];
 631                 sprintf( authid, "uidNumber=%d+gidNumber=%d,"
 632                         "cn=peercred,cn=external,cn=auth",
 633                         (int) geteuid(), (int) getegid() );
 634                 (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid, LDAP_PVT_SASL_LOCAL_SSF );
 635         }
 636 #endif
 637
 638         /* (re)set security properties */
 639         sasl_setprop( ctx, SASL_SEC_PROPS,
 640                 &ld->ld_options.ldo_sasl_secprops );
 641
 642         ccred.bv_val = NULL;
 643         ccred.bv_len = 0;
 644
 645         do {
 646                 saslrc = sasl_client_start( ctx,
 647                         mechs,
 648 #if SASL_VERSION_MAJOR < 2
 649                         NULL,
 650 #endif
 651                         &prompts,
 652                         (SASL_CONST char **)&ccred.bv_val,
 653                         &credlen,
 654                         &mech );
 655
 656                 if( pmech == NULL && mech != NULL ) {
 657                         pmech = mech;
 658
 659                         if( flags != LDAP_SASL_QUIET ) {
 660                                 fprintf(stderr,
 661                                         "SASL/%s authentication started\n",
 662                                         pmech );
 663                         }
 664                 }
 665
 666                 if( saslrc == SASL_INTERACT ) {
 667                         int res;
 668                         if( !interact ) break;
 669                         res = (interact)( ld, flags, defaults, prompts );
 670
 671                         if( res != LDAP_SUCCESS ) break;
 672                 }
 673         } while ( saslrc == SASL_INTERACT );
 674
 675         ccred.bv_len = credlen;
 676
 677         if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
 678                 rc = ld->ld_errno = sasl_err2ldap( saslrc );
 679 #if SASL_VERSION_MAJOR >= 2
 680                 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
 681 #endif
 682                 goto done;
 683         }
 684
 685         do {
 686                 struct berval *scred;
 687                 unsigned credlen;
 688
 689                 scred = NULL;
 690
 691                 rc = ldap_sasl_bind_s( ld, dn, mech, &ccred, sctrls, cctrls, &scred );
 692
 693                 if ( ccred.bv_val != NULL ) {
 694 #if SASL_VERSION_MAJOR < 2
 695                         LDAP_FREE( ccred.bv_val );
 696 #endif
 697                         ccred.bv_val = NULL;
 698                 }
 699
 700                 if ( rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS ) {
 701                         if( scred && scred->bv_len ) {
 702                                 /* and server provided us with data? */
 703                                 Debug( LDAP_DEBUG_TRACE,
 704                                         "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
 705                                         rc, saslrc, scred->bv_len );
 706                                 ber_bvfree( scred );
 707                         }
 708                         rc = ld->ld_errno;
 709                         goto done;
 710                 }
 711
 712                 if( rc == LDAP_SUCCESS && saslrc == SASL_OK ) {
 713                         /* we're done, no need to step */
 714                         if( scred && scred->bv_len ) {
 715                                 /* but server provided us with data! */
 716                                 Debug( LDAP_DEBUG_TRACE,
 717                                         "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
 718                                         rc, saslrc, scred->bv_len );
 719                                 ber_bvfree( scred );
 720                                 rc = ld->ld_errno = LDAP_LOCAL_ERROR;
 721                                 goto done;
 722                         }
 723                         break;
 724                 }
 725
 726                 do {
 727                         saslrc = sasl_client_step( ctx,
 728                                 (scred == NULL) ? NULL : scred->bv_val,
 729                                 (scred == NULL) ? 0 : scred->bv_len,
 730                                 &prompts,
 731                                 (SASL_CONST char **)&ccred.bv_val,
 732                                 &credlen );
 733
 734                         Debug( LDAP_DEBUG_TRACE, "sasl_client_step: %d\n",
 735                                 saslrc, 0, 0 );
 736
 737                         if( saslrc == SASL_INTERACT ) {
 738                                 int res;
 739                                 if( !interact ) break;
 740                                 res = (interact)( ld, flags, defaults, prompts );
 741                                 if( res != LDAP_SUCCESS ) break;
 742                         }
 743                 } while ( saslrc == SASL_INTERACT );
 744
 745                 ccred.bv_len = credlen;
 746                 ber_bvfree( scred );
 747
 748                 if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
 749                         ld->ld_errno = sasl_err2ldap( saslrc );
 750 #if SASL_VERSION_MAJOR >= 2
 751                         ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
 752 #endif
 753                         rc = ld->ld_errno;
 754                         goto done;
 755                 }
 756         } while ( rc == LDAP_SASL_BIND_IN_PROGRESS );
 757
 758         if ( rc != LDAP_SUCCESS ) goto done;
 759
 760         if ( saslrc != SASL_OK ) {
 761 #if SASL_VERSION_MAJOR >= 2
 762                 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
 763 #endif
 764                 rc = ld->ld_errno = sasl_err2ldap( saslrc );
 765                 goto done;
 766         }
 767
 768         if( flags != LDAP_SASL_QUIET ) {
 769                 saslrc = sasl_getprop( ctx, SASL_USERNAME, (SASL_CONST void **) &data );
 770                 if( saslrc == SASL_OK && data && *data ) {
 771                         fprintf( stderr, "SASL username: %s\n", data );
 772                 }
 773
 774 #if SASL_VERSION_MAJOR < 2
 775                 saslrc = sasl_getprop( ctx, SASL_REALM, (SASL_CONST void **) &data );
 776                 if( saslrc == SASL_OK && data && *data ) {
 777                         fprintf( stderr, "SASL realm: %s\n", data );
 778                 }
 779 #endif
 780         }
 781
 782         saslrc = sasl_getprop( ctx, SASL_SSF, (SASL_CONST void **) &ssf );
 783         if( saslrc == SASL_OK ) {
 784                 if( flags != LDAP_SASL_QUIET ) {
 785                         fprintf( stderr, "SASL SSF: %lu\n",
 786                                 (unsigned long) *ssf );
 787                 }
 788
 789                 if( ssf && *ssf ) {
 790                         if( flags != LDAP_SASL_QUIET ) {
 791                                 fprintf( stderr, "SASL installing layers\n" );
 792                         }
 793                         if ( ld->ld_defconn->lconn_sasl_sockctx ) {
 794                                 oldctx = ld->ld_defconn->lconn_sasl_sockctx;
 795                                 sasl_dispose( &oldctx );
 796                                 ldap_pvt_sasl_remove( ld->ld_defconn->lconn_sb );
 797                         }
 798                         ldap_pvt_sasl_install( ld->ld_conns->lconn_sb, ctx );
 799                         ld->ld_defconn->lconn_sasl_sockctx = ctx;
 800                 }
 801         }
 802         ld->ld_defconn->lconn_sasl_authctx = ctx;
 803
 804 done:
 805         return rc;
 806 }
 807
 808 int
 809 ldap_int_sasl_external(
 810         LDAP *ld,
 811         LDAPConn *conn,
 812         const char * authid,
 813         ber_len_t ssf )
 814 {
 815         int sc;
 816         sasl_conn_t *ctx;
 817 #if SASL_VERSION_MAJOR < 2
 818         sasl_external_properties_t extprops;
 819 #endif
 820
 821         ctx = conn->lconn_sasl_authctx;
 822
 823         if ( ctx == NULL ) {
 824                 return LDAP_LOCAL_ERROR;
 825         }
 826
 827 #if SASL_VERSION_MAJOR >= 2
 828         sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
 829         if ( sc == SASL_OK )
 830                 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
 831 #else
 832         memset( &extprops, '\0', sizeof(extprops) );
 833         extprops.ssf = ssf;
 834         extprops.auth_id = (char *) authid;
 835
 836         sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
 837                 (void *) &extprops );
 838 #endif
 839
 840         if ( sc != SASL_OK ) {
 841                 return LDAP_LOCAL_ERROR;
 842         }
 843
 844         return LDAP_SUCCESS;
 845 }
 846
 847
 848 #define GOT_MINSSF      1
 849 #define GOT_MAXSSF      2
 850 #define GOT_MAXBUF      4
 851
 852 static struct {
 853         struct berval key;
 854         int sflag;
 855         int ival;
 856         int idef;
 857 } sprops[] = {
 858         { BER_BVC("none"), 0, 0, 0 },
 859         { BER_BVC("nodict"), SASL_SEC_NODICTIONARY, 0, 0 },
 860         { BER_BVC("noplain"), SASL_SEC_NOPLAINTEXT, 0, 0 },
 861         { BER_BVC("noactive"), SASL_SEC_NOACTIVE, 0, 0 },
 862         { BER_BVC("passcred"), SASL_SEC_PASS_CREDENTIALS, 0, 0 },
 863         { BER_BVC("forwardsec"), SASL_SEC_FORWARD_SECRECY, 0, 0 },
 864         { BER_BVC("noanonymous"), SASL_SEC_NOANONYMOUS, 0, 0 },
 865         { BER_BVC("minssf="), 0, GOT_MINSSF, 0 },
 866         { BER_BVC("maxssf="), 0, GOT_MAXSSF, INT_MAX },
 867         { BER_BVC("maxbufsize="), 0, GOT_MAXBUF, 65536 },
 868         { BER_BVNULL, 0, 0 }
 869 };
 870
 871 void ldap_pvt_sasl_secprops_unparse(
 872         sasl_security_properties_t *secprops,
 873         struct berval *out )
 874 {
 875         int i, l = 0;
 876         int comma;
 877         char *ptr;
 878
 879         if ( secprops == NULL || out == NULL ) {
 880                 return;
 881         }
 882
 883         comma = 0;
 884         for ( i=0; !BER_BVISNULL( &sprops[i].key ); i++ ) {
 885                 if ( sprops[i].ival ) {
 886                         int v;
 887
 888                         switch( sprops[i].ival ) {
 889                         case GOT_MINSSF: v = secprops->min_ssf; break;
 890                         case GOT_MAXSSF: v = secprops->max_ssf; break;
 891                         case GOT_MAXBUF: v = secprops->maxbufsize; break;
 892                         }
 893                         /* It is the default, ignore it */
 894                         if ( v == sprops[i].idef ) continue;
 895
 896                         l += sprops[i].key.bv_len + 24;
 897                 } else if ( sprops[i].sflag ) {
 898                         if ( sprops[i].sflag & secprops->security_flags ) {
 899                                 l += sprops[i].key.bv_len;
 900                         }
 901                 } else if ( secprops->security_flags == 0 ) {
 902                         l += sprops[i].key.bv_len;
 903                 }
 904                 if ( comma ) l++;
 905                 comma = 1;
 906         }
 907         l++;
 908
 909         out->bv_val = LDAP_MALLOC( l );
 910         if ( out->bv_val == NULL ) {
 911                 out->bv_len = 0;
 912                 return;
 913         }
 914
 915         ptr = out->bv_val;
 916         comma = 0;
 917         for ( i=0; !BER_BVISNULL( &sprops[i].key ); i++ ) {
 918                 if ( sprops[i].ival ) {
 919                         int v;
 920
 921                         switch( sprops[i].ival ) {
 922                         case GOT_MINSSF: v = secprops->min_ssf; break;
 923                         case GOT_MAXSSF: v = secprops->max_ssf; break;
 924                         case GOT_MAXBUF: v = secprops->maxbufsize; break;
 925                         }
 926                         /* It is the default, ignore it */
 927                         if ( v == sprops[i].idef ) continue;
 928
 929                         if ( comma ) *ptr++ = ',';
 930                         ptr += sprintf(ptr, "%s%d", sprops[i].key.bv_val, v );
 931                         comma = 1;
 932                 } else if ( sprops[i].sflag ) {
 933                         if ( sprops[i].sflag & secprops->security_flags ) {
 934                                 if ( comma ) *ptr++ = ',';
 935                                 ptr += sprintf(ptr, "%s", sprops[i].key.bv_val );
 936                                 comma = 1;
 937                         }
 938                 } else if ( secprops->security_flags == 0 ) {
 939                         if ( comma ) *ptr++ = ',';
 940                         ptr += sprintf(ptr, "%s", sprops[i].key.bv_val );
 941                         comma = 1;
 942                 }
 943         }
 944         out->bv_len = ptr - out->bv_val;
 945 }
 946
 947 int ldap_pvt_sasl_secprops(
 948         const char *in,
 949         sasl_security_properties_t *secprops )
 950 {
 951         int i, j, l;
 952         char **props = ldap_str2charray( in, "," );
 953         unsigned sflags = 0;
 954         int got_sflags = 0;
 955         sasl_ssf_t max_ssf = 0;
 956         int got_max_ssf = 0;
 957         sasl_ssf_t min_ssf = 0;
 958         int got_min_ssf = 0;
 959         unsigned maxbufsize = 0;
 960         int got_maxbufsize = 0;
 961
 962         if( props == NULL || secprops == NULL ) {
 963                 return LDAP_PARAM_ERROR;
 964         }
 965
 966         for( i=0; props[i]; i++ ) {
 967                 l = strlen( props[i] );
 968                 for ( j=0; !BER_BVISNULL( &sprops[j].key ); j++ ) {
 969                         if ( l < sprops[j].key.bv_len ) continue;
 970                         if ( strncasecmp( props[i], sprops[j].key.bv_val,
 971                                 sprops[j].key.bv_len )) continue;
 972                         if ( sprops[j].ival ) {
 973                                 int v;
 974                                 if ( props[i][sprops[j].key.bv_len] != '=' ) continue;
 975                                 if ( !isdigit( props[i][sprops[j].key.bv_len+1] )) continue;
 976                                 v = atoi( props[i]+sprops[j].key.bv_len+1 );
 977                                 switch( sprops[j].ival ) {
 978                                 case GOT_MINSSF:
 979                                         min_ssf = v; got_min_ssf++; break;
 980                                 case GOT_MAXSSF:
 981                                         max_ssf = v; got_max_ssf++; break;
 982                                 case GOT_MAXBUF:
 983                                         maxbufsize = v; got_maxbufsize++; break;
 984                                 }
 985                         } else {
 986                                 if ( props[i][sprops[j].key.bv_len] ) continue;
 987                                 if ( sprops[j].sflag )
 988                                         sflags |= sprops[j].sflag;
 989                                 else
 990                                         sflags = 0;
 991                                 got_sflags++;
 992                         }
 993                         break;
 994                 }
 995                 if ( BER_BVISNULL( &sprops[j].key )) {
 996                         return LDAP_NOT_SUPPORTED;
 997                 }
 998         }
 999
1000         if(got_sflags) {
1001                 secprops->security_flags = sflags;
1002         }
1003         if(got_min_ssf) {
1004                 secprops->min_ssf = min_ssf;
1005         }
1006         if(got_max_ssf) {
1007                 secprops->max_ssf = max_ssf;
1008         }
1009         if(got_maxbufsize) {
1010                 secprops->maxbufsize = maxbufsize;
1011         }
1012
1013         ldap_charray_free( props );
1014         return LDAP_SUCCESS;
1015 }
1016
1017 int
1018 ldap_int_sasl_config( struct ldapoptions *lo, int option, const char *arg )
1019 {
1020         int rc;
1021
1022         switch( option ) {
1023         case LDAP_OPT_X_SASL_SECPROPS:
1024                 rc = ldap_pvt_sasl_secprops( arg, &lo->ldo_sasl_secprops );
1025                 if( rc == LDAP_SUCCESS ) return 0;
1026         }
1027
1028         return -1;
1029 }
1030
1031 int
1032 ldap_int_sasl_get_option( LDAP *ld, int option, void *arg )
1033 {
1034         if ( ld == NULL )
1035                 return -1;
1036
1037         switch ( option ) {
1038                 case LDAP_OPT_X_SASL_MECH: {
1039                         *(char **)arg = ld->ld_options.ldo_def_sasl_mech
1040                                 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_mech ) : NULL;
1041                 } break;
1042                 case LDAP_OPT_X_SASL_REALM: {
1043                         *(char **)arg = ld->ld_options.ldo_def_sasl_realm
1044                                 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_realm ) : NULL;
1045                 } break;
1046                 case LDAP_OPT_X_SASL_AUTHCID: {
1047                         *(char **)arg = ld->ld_options.ldo_def_sasl_authcid
1048                                 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authcid ) : NULL;
1049                 } break;
1050                 case LDAP_OPT_X_SASL_AUTHZID: {
1051                         *(char **)arg = ld->ld_options.ldo_def_sasl_authzid
1052                                 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authzid ) : NULL;
1053                 } break;
1054
1055                 case LDAP_OPT_X_SASL_SSF: {
1056                         int sc;
1057                         sasl_ssf_t      *ssf;
1058                         sasl_conn_t *ctx;
1059
1060                         if( ld->ld_defconn == NULL ) {
1061                                 return -1;
1062                         }
1063
1064                         ctx = ld->ld_defconn->lconn_sasl_sockctx;
1065
1066                         if ( ctx == NULL ) {
1067                                 return -1;
1068                         }
1069
1070                         sc = sasl_getprop( ctx, SASL_SSF,
1071                                 (SASL_CONST void **) &ssf );
1072
1073                         if ( sc != SASL_OK ) {
1074                                 return -1;
1075                         }
1076
1077                         *(ber_len_t *)arg = *ssf;
1078                 } break;
1079
1080                 case LDAP_OPT_X_SASL_SSF_EXTERNAL:
1081                         /* this option is write only */
1082                         return -1;
1083
1084                 case LDAP_OPT_X_SASL_SSF_MIN:
1085                         *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.min_ssf;
1086                         break;
1087                 case LDAP_OPT_X_SASL_SSF_MAX:
1088                         *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.max_ssf;
1089                         break;
1090                 case LDAP_OPT_X_SASL_MAXBUFSIZE:
1091                         *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.maxbufsize;
1092                         break;
1093
1094                 case LDAP_OPT_X_SASL_SECPROPS:
1095                         /* this option is write only */
1096                         return -1;
1097
1098                 default:
1099                         return -1;
1100         }
1101         return 0;
1102 }
1103
1104 int
1105 ldap_int_sasl_set_option( LDAP *ld, int option, void *arg )
1106 {
1107         if ( ld == NULL )
1108                 return -1;
1109
1110         switch ( option ) {
1111         case LDAP_OPT_X_SASL_SSF:
1112                 /* This option is read-only */
1113                 return -1;
1114
1115         case LDAP_OPT_X_SASL_SSF_EXTERNAL: {
1116                 int sc;
1117 #if SASL_VERSION_MAJOR < 2
1118                 sasl_external_properties_t extprops;
1119 #endif
1120                 sasl_conn_t *ctx;
1121
1122                 if( ld->ld_defconn == NULL ) {
1123                         return -1;
1124                 }
1125
1126                 ctx = ld->ld_defconn->lconn_sasl_authctx;
1127
1128                 if ( ctx == NULL ) {
1129                         return -1;
1130                 }
1131
1132 #if SASL_VERSION_MAJOR >= 2
1133                 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, arg);
1134 #else
1135                 memset(&extprops, 0L, sizeof(extprops));
1136
1137                 extprops.ssf = * (ber_len_t *) arg;
1138
1139                 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1140                         (void *) &extprops );
1141 #endif
1142
1143                 if ( sc != SASL_OK ) {
1144                         return -1;
1145                 }
1146                 } break;
1147
1148         case LDAP_OPT_X_SASL_SSF_MIN:
1149                 ld->ld_options.ldo_sasl_secprops.min_ssf = *(ber_len_t *)arg;
1150                 break;
1151         case LDAP_OPT_X_SASL_SSF_MAX:
1152                 ld->ld_options.ldo_sasl_secprops.max_ssf = *(ber_len_t *)arg;
1153                 break;
1154         case LDAP_OPT_X_SASL_MAXBUFSIZE:
1155                 ld->ld_options.ldo_sasl_secprops.maxbufsize = *(ber_len_t *)arg;
1156                 break;
1157
1158         case LDAP_OPT_X_SASL_SECPROPS: {
1159                 int sc;
1160                 sc = ldap_pvt_sasl_secprops( (char *) arg,
1161                         &ld->ld_options.ldo_sasl_secprops );
1162
1163                 return sc == LDAP_SUCCESS ? 0 : -1;
1164                 }
1165
1166         default:
1167                 return -1;
1168         }
1169         return 0;
1170 }
1171
1172 #ifdef LDAP_R_COMPILE
1173 #define LDAP_DEBUG_R_SASL
1174 void *ldap_pvt_sasl_mutex_new(void)
1175 {
1176         ldap_pvt_thread_mutex_t *mutex;
1177
1178         mutex = (ldap_pvt_thread_mutex_t *) LDAP_MALLOC(
1179                 sizeof(ldap_pvt_thread_mutex_t) );
1180
1181         if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
1182                 return mutex;
1183         }
1184 #ifndef LDAP_DEBUG_R_SASL
1185         assert( 0 );
1186 #endif /* !LDAP_DEBUG_R_SASL */
1187         return NULL;
1188 }
1189
1190 int ldap_pvt_sasl_mutex_lock(void *mutex)
1191 {
1192 #ifdef LDAP_DEBUG_R_SASL
1193         if ( mutex == NULL ) {
1194                 return SASL_OK;
1195         }
1196 #else /* !LDAP_DEBUG_R_SASL */
1197         assert( mutex );
1198 #endif /* !LDAP_DEBUG_R_SASL */
1199         return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex )
1200                 ? SASL_FAIL : SASL_OK;
1201 }
1202
1203 int ldap_pvt_sasl_mutex_unlock(void *mutex)
1204 {
1205 #ifdef LDAP_DEBUG_R_SASL
1206         if ( mutex == NULL ) {
1207                 return SASL_OK;
1208         }
1209 #else /* !LDAP_DEBUG_R_SASL */
1210         assert( mutex );
1211 #endif /* !LDAP_DEBUG_R_SASL */
1212         return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex )
1213                 ? SASL_FAIL : SASL_OK;
1214 }
1215
1216 void ldap_pvt_sasl_mutex_dispose(void *mutex)
1217 {
1218 #ifdef LDAP_DEBUG_R_SASL
1219         if ( mutex == NULL ) {
1220                 return;
1221         }
1222 #else /* !LDAP_DEBUG_R_SASL */
1223         assert( mutex );
1224 #endif /* !LDAP_DEBUG_R_SASL */
1225         (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
1226         LDAP_FREE( mutex );
1227 }
1228 #endif
1229
1230 #else
1231 int ldap_int_sasl_init( void )
1232 { return LDAP_SUCCESS; }
1233
1234 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
1235 { return LDAP_SUCCESS; }
1236
1237 int
1238 ldap_int_sasl_bind(
1239         LDAP                    *ld,
1240         const char              *dn,
1241         const char              *mechs,
1242         LDAPControl             **sctrls,
1243         LDAPControl             **cctrls,
1244         unsigned                flags,
1245         LDAP_SASL_INTERACT_PROC *interact,
1246         void * defaults )
1247 { return LDAP_NOT_SUPPORTED; }
1248
1249 int
1250 ldap_int_sasl_external(
1251         LDAP *ld,
1252         LDAPConn *conn,
1253         const char * authid,
1254         ber_len_t ssf )
1255 { return LDAP_SUCCESS; }
1256
1257 #endif /* HAVE_CYRUS_SASL */