git.sur5r.net Git - openldap/blob - servers/slapd/slapi/plugin.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 2002-2013 The OpenLDAP Foundation.
   5  * Portions Copyright 1997,2002-2003 IBM Corporation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by IBM Corporation for use in
  18  * IBM products and subsequently ported to OpenLDAP Software by
  19  * Steve Omrani.  Additional significant contributors include:
  20  *    Luke Howard
  21  */
  22
  23 #include "portable.h"
  24 #include "ldap_pvt_thread.h"
  25 #include "slap.h"
  26 #include "config.h"
  27 #include "slapi.h"
  28 #include "lutil.h"
  29
  30 /*
  31  * Note: if ltdl.h is not available, slapi should not be compiled
  32  */
  33 #include <ltdl.h>
  34
  35 static int slapi_int_load_plugin( Slapi_PBlock *, const char *, const char *, int,
  36         SLAPI_FUNC *, lt_dlhandle * );
  37
  38 /* pointer to link list of extended objects */
  39 static ExtendedOp *pGExtendedOps = NULL;
  40
  41 /*********************************************************************
  42  * Function Name:      plugin_pblock_new
  43  *
  44  * Description:        This routine creates a new Slapi_PBlock structure,
  45  *                     loads in the plugin module and executes the init
  46  *                     function provided by the module.
  47  *
  48  * Input:              type - type of the plugin, such as SASL, database, etc.
  49  *                     path - the loadpath to load the module in
  50  *                     initfunc - name of the plugin function to execute first
  51  *                     argc - number of arguements
  52  *                     argv[] - an array of char pointers point to
  53  *                              the arguments passed in via
  54  *                              the configuration file.
  55  *
  56  * Output:
  57  *
  58  * Return Values:      a pointer to a newly created Slapi_PBlock structrue or
  59  *                     NULL - function failed
  60  *
  61  * Messages:           None
  62  *********************************************************************/
  63
  64 static Slapi_PBlock *
  65 plugin_pblock_new(
  66         int type,
  67         int argc,
  68         char *argv[] )
  69 {
  70         Slapi_PBlock    *pPlugin = NULL;
  71         Slapi_PluginDesc *pPluginDesc = NULL;
  72         lt_dlhandle     hdLoadHandle;
  73         int             rc;
  74         char            **av2 = NULL, **ppPluginArgv;
  75         char            *path = argv[2];
  76         char            *initfunc = argv[3];
  77
  78         pPlugin = slapi_pblock_new();
  79         if ( pPlugin == NULL ) {
  80                 rc = LDAP_NO_MEMORY;
  81                 goto done;
  82         }
  83
  84         slapi_pblock_set( pPlugin, SLAPI_PLUGIN_TYPE, (void *)&type );
  85         slapi_pblock_set( pPlugin, SLAPI_PLUGIN_ARGC, (void *)&argc );
  86
  87         av2 = ldap_charray_dup( argv );
  88         if ( av2 == NULL ) {
  89                 rc = LDAP_NO_MEMORY;
  90                 goto done;
  91         }
  92
  93         if ( argc > 0 ) {
  94                 ppPluginArgv = &av2[4];
  95         } else {
  96                 ppPluginArgv = NULL;
  97         }
  98
  99         slapi_pblock_set( pPlugin, SLAPI_PLUGIN_ARGV, (void *)ppPluginArgv );
 100         slapi_pblock_set( pPlugin, SLAPI_X_CONFIG_ARGV, (void *)av2 );
 101
 102         rc = slapi_int_load_plugin( pPlugin, path, initfunc, 1, NULL, &hdLoadHandle );
 103         if ( rc != 0 ) {
 104                 goto done;
 105         }
 106
 107         if ( slapi_pblock_get( pPlugin, SLAPI_PLUGIN_DESCRIPTION, (void **)&pPluginDesc ) == 0 &&
 108              pPluginDesc != NULL ) {
 109                 slapi_log_error(SLAPI_LOG_TRACE, "plugin_pblock_new",
 110                                 "Registered plugin %s %s [%s] (%s)\n",
 111                                 pPluginDesc->spd_id,
 112                                 pPluginDesc->spd_version,
 113                                 pPluginDesc->spd_vendor,
 114                                 pPluginDesc->spd_description);
 115         }
 116
 117 done:
 118         if ( rc != 0 && pPlugin != NULL ) {
 119                 slapi_pblock_destroy( pPlugin );
 120                 pPlugin = NULL;
 121                 if ( av2 != NULL ) {
 122                         ldap_charray_free( av2 );
 123                 }
 124         }
 125
 126         return pPlugin;
 127 }
 128
 129 /*********************************************************************
 130  * Function Name:      slapi_int_register_plugin
 131  *
 132  * Description:        insert the slapi_pblock structure to the end of the plugin
 133  *                     list
 134  *
 135  * Input:              a pointer to a plugin slapi_pblock structure to be added to
 136  *                     the list
 137  *
 138  * Output:             none
 139  *
 140  * Return Values:      LDAP_SUCCESS - successfully inserted.
 141  *                     LDAP_LOCAL_ERROR.
 142  *
 143  * Messages:           None
 144  *********************************************************************/
 145 int
 146 slapi_int_register_plugin(
 147         Backend *be,
 148         Slapi_PBlock *pPB )
 149 {
 150         Slapi_PBlock    *pTmpPB;
 151         Slapi_PBlock    *pSavePB;
 152         int              rc = LDAP_SUCCESS;
 153
 154         assert( be != NULL );
 155
 156         pTmpPB = SLAPI_BACKEND_PBLOCK( be );
 157         if ( pTmpPB == NULL ) {
 158                 SLAPI_BACKEND_PBLOCK( be ) = pPB;
 159         } else {
 160                 while ( pTmpPB != NULL && rc == LDAP_SUCCESS ) {
 161                         pSavePB = pTmpPB;
 162                         rc = slapi_pblock_get( pTmpPB, SLAPI_IBM_PBLOCK, &pTmpPB );
 163                 }
 164
 165                 if ( rc == LDAP_SUCCESS ) {
 166                         rc = slapi_pblock_set( pSavePB, SLAPI_IBM_PBLOCK, (void *)pPB );
 167                 }
 168         }
 169
 170         return ( rc != LDAP_SUCCESS ) ? LDAP_OTHER : LDAP_SUCCESS;
 171 }
 172
 173 /*********************************************************************
 174  * Function Name:      slapi_int_get_plugins
 175  *
 176  * Description:        get the desired type of function pointers defined
 177  *                     in all the plugins
 178  *
 179  * Input:              the type of the functions to get, such as pre-operation,etc.
 180  *
 181  * Output:             none
 182  *
 183  * Return Values:      this routine returns a pointer to an array of function
 184  *                     pointers containing backend-specific plugin functions
 185  *                     followed by global plugin functions
 186  *
 187  * Messages:           None
 188  *********************************************************************/
 189 int
 190 slapi_int_get_plugins(
 191         Backend *be,
 192         int functype,
 193         SLAPI_FUNC **ppFuncPtrs )
 194 {
 195
 196         Slapi_PBlock    *pCurrentPB;
 197         SLAPI_FUNC      FuncPtr;
 198         SLAPI_FUNC      *pTmpFuncPtr;
 199         int             numPB = 0;
 200         int             rc = LDAP_SUCCESS;
 201
 202         assert( ppFuncPtrs != NULL );
 203
 204         if ( be == NULL ) {
 205                 goto done;
 206         }
 207
 208         pCurrentPB = SLAPI_BACKEND_PBLOCK( be );
 209
 210         while ( pCurrentPB != NULL && rc == LDAP_SUCCESS ) {
 211                 rc = slapi_pblock_get( pCurrentPB, functype, &FuncPtr );
 212                 if ( rc == LDAP_SUCCESS ) {
 213                         if ( FuncPtr != NULL )  {
 214                                 numPB++;
 215                         }
 216                         rc = slapi_pblock_get( pCurrentPB,
 217                                 SLAPI_IBM_PBLOCK, &pCurrentPB );
 218                 }
 219         }
 220
 221         if ( numPB == 0 ) {
 222                 *ppFuncPtrs = NULL;
 223                 rc = LDAP_SUCCESS;
 224                 goto done;
 225         }
 226
 227         /*
 228          * Now, build the function pointer array of backend-specific
 229          * plugins followed by global plugins.
 230          */
 231         *ppFuncPtrs = pTmpFuncPtr =
 232                 (SLAPI_FUNC *)ch_malloc( ( numPB + 1 ) * sizeof(SLAPI_FUNC) );
 233         if ( ppFuncPtrs == NULL ) {
 234                 rc = LDAP_NO_MEMORY;
 235                 goto done;
 236         }
 237
 238         pCurrentPB = SLAPI_BACKEND_PBLOCK( be );
 239
 240         while ( pCurrentPB != NULL && rc == LDAP_SUCCESS )  {
 241                 rc = slapi_pblock_get( pCurrentPB, functype, &FuncPtr );
 242                 if ( rc == LDAP_SUCCESS ) {
 243                         if ( FuncPtr != NULL )  {
 244                                 *pTmpFuncPtr = FuncPtr;
 245                                 pTmpFuncPtr++;
 246                         }
 247                         rc = slapi_pblock_get( pCurrentPB,
 248                                         SLAPI_IBM_PBLOCK, &pCurrentPB );
 249                 }
 250         }
 251
 252         *pTmpFuncPtr = NULL;
 253
 254
 255 done:
 256         if ( rc != LDAP_SUCCESS && *ppFuncPtrs != NULL ) {
 257                 ch_free( *ppFuncPtrs );
 258                 *ppFuncPtrs = NULL;
 259         }
 260
 261         return rc;
 262 }
 263
 264 /*********************************************************************
 265  * Function Name:      createExtendedOp
 266  *
 267  * Description: Creates an extended operation structure and
 268  *              initializes the fields
 269  *
 270  * Return value: A newly allocated structure or NULL
 271  ********************************************************************/
 272 ExtendedOp *
 273 createExtendedOp()
 274 {
 275         ExtendedOp *ret;
 276
 277         ret = (ExtendedOp *)slapi_ch_malloc(sizeof(ExtendedOp));
 278         ret->ext_oid.bv_val = NULL;
 279         ret->ext_oid.bv_len = 0;
 280         ret->ext_func = NULL;
 281         ret->ext_be = NULL;
 282         ret->ext_next = NULL;
 283
 284         return ret;
 285 }
 286
 287
 288 /*********************************************************************
 289  * Function Name:      slapi_int_unregister_extop
 290  *
 291  * Description:        This routine removes the ExtendedOp structures
 292  *                                         asscoiated with a particular extended operation
 293  *                                         plugin.
 294  *
 295  * Input:              pBE - pointer to a backend structure
 296  *                     opList - pointer to a linked list of extended
 297  *                              operation structures
 298  *                     pPB - pointer to a slapi parameter block
 299  *
 300  * Output:
 301  *
 302  * Return Value:       none
 303  *
 304  * Messages:           None
 305  *********************************************************************/
 306 void
 307 slapi_int_unregister_extop(
 308         Backend *pBE,
 309         ExtendedOp **opList,
 310         Slapi_PBlock *pPB )
 311 {
 312         ExtendedOp      *pTmpExtOp, *backExtOp;
 313         char            **pTmpOIDs;
 314         int             i;
 315
 316 #if 0
 317         assert( pBE != NULL); /* unused */
 318 #endif /* 0 */
 319         assert( opList != NULL );
 320         assert( pPB != NULL );
 321
 322         if ( *opList == NULL ) {
 323                 return;
 324         }
 325
 326         slapi_pblock_get( pPB, SLAPI_PLUGIN_EXT_OP_OIDLIST, &pTmpOIDs );
 327         if ( pTmpOIDs == NULL ) {
 328                 return;
 329         }
 330
 331         for ( i = 0; pTmpOIDs[i] != NULL; i++ ) {
 332                 backExtOp = NULL;
 333                 pTmpExtOp = *opList;
 334                 for ( ; pTmpExtOp != NULL; pTmpExtOp = pTmpExtOp->ext_next) {
 335                         int     rc;
 336                         rc = strcasecmp( pTmpExtOp->ext_oid.bv_val,
 337                                         pTmpOIDs[ i ] );
 338                         if ( rc == 0 ) {
 339                                 if ( backExtOp == NULL ) {
 340                                         *opList = pTmpExtOp->ext_next;
 341                                 } else {
 342                                         backExtOp->ext_next
 343                                                 = pTmpExtOp->ext_next;
 344                                 }
 345
 346                                 ch_free( pTmpExtOp );
 347                                 break;
 348                         }
 349                         backExtOp = pTmpExtOp;
 350                 }
 351         }
 352 }
 353
 354
 355 /*********************************************************************
 356  * Function Name:      slapi_int_register_extop
 357  *
 358  * Description:        This routine creates a new ExtendedOp structure, loads
 359  *                     in the extended op module and put the extended op function address
 360  *                     in the structure. The function will not be executed in
 361  *                     this routine.
 362  *
 363  * Input:              pBE - pointer to a backend structure
 364  *                     opList - pointer to a linked list of extended
 365  *                              operation structures
 366  *                     pPB - pointer to a slapi parameter block
 367  *
 368  * Output:
 369  *
 370  * Return Value:       an LDAP return code
 371  *
 372  * Messages:           None
 373  *********************************************************************/
 374 int
 375 slapi_int_register_extop(
 376         Backend *pBE,
 377         ExtendedOp **opList,
 378         Slapi_PBlock *pPB )
 379 {
 380         ExtendedOp      *pTmpExtOp = NULL;
 381         SLAPI_FUNC      tmpFunc;
 382         char            **pTmpOIDs;
 383         int             rc = LDAP_OTHER;
 384         int             i;
 385
 386         if ( (*opList) == NULL ) {
 387                 *opList = createExtendedOp();
 388                 if ( (*opList) == NULL ) {
 389                         rc = LDAP_NO_MEMORY;
 390                         goto error_return;
 391                 }
 392                 pTmpExtOp = *opList;
 393
 394         } else {                        /* Find the end of the list */
 395                 for ( pTmpExtOp = *opList; pTmpExtOp->ext_next != NULL;
 396                                 pTmpExtOp = pTmpExtOp->ext_next )
 397                         ; /* EMPTY */
 398                 pTmpExtOp->ext_next = createExtendedOp();
 399                 if ( pTmpExtOp->ext_next == NULL ) {
 400                         rc = LDAP_NO_MEMORY;
 401                         goto error_return;
 402                 }
 403                 pTmpExtOp = pTmpExtOp->ext_next;
 404         }
 405
 406         rc = slapi_pblock_get( pPB,SLAPI_PLUGIN_EXT_OP_OIDLIST, &pTmpOIDs );
 407         if ( rc != 0 ) {
 408                 rc = LDAP_OTHER;
 409                 goto error_return;
 410         }
 411
 412         rc = slapi_pblock_get(pPB,SLAPI_PLUGIN_EXT_OP_FN, &tmpFunc);
 413         if ( rc != 0 ) {
 414                 rc = LDAP_OTHER;
 415                 goto error_return;
 416         }
 417
 418         if ( (pTmpOIDs == NULL) || (tmpFunc == NULL) ) {
 419                 rc = LDAP_OTHER;
 420                 goto error_return;
 421         }
 422
 423         for ( i = 0; pTmpOIDs[i] != NULL; i++ ) {
 424                 pTmpExtOp->ext_oid.bv_val = pTmpOIDs[i];
 425                 pTmpExtOp->ext_oid.bv_len = strlen( pTmpOIDs[i] );
 426                 pTmpExtOp->ext_func = tmpFunc;
 427                 pTmpExtOp->ext_be = pBE;
 428                 if ( pTmpOIDs[i + 1] != NULL ) {
 429                         pTmpExtOp->ext_next = createExtendedOp();
 430                         if ( pTmpExtOp->ext_next == NULL ) {
 431                                 rc = LDAP_NO_MEMORY;
 432                                 break;
 433                         }
 434                         pTmpExtOp = pTmpExtOp->ext_next;
 435                 }
 436         }
 437
 438 error_return:
 439         return rc;
 440 }
 441
 442 /*********************************************************************
 443  * Function Name:      slapi_int_get_extop_plugin
 444  *
 445  * Description:        This routine gets the function address for a given function
 446  *                     name.
 447  *
 448  * Input:
 449  *                     funcName - name of the extended op function, ie. an OID.
 450  *
 451  * Output:             pFuncAddr - the function address of the requested function name.
 452  *
 453  * Return Values:      a pointer to a newly created ExtendOp structrue or
 454  *                     NULL - function failed
 455  *
 456  * Messages:           None
 457  *********************************************************************/
 458 int
 459 slapi_int_get_extop_plugin(
 460         struct berval *reqoid,
 461         SLAPI_FUNC *pFuncAddr )
 462 {
 463         ExtendedOp      *pTmpExtOp;
 464
 465         assert( reqoid != NULL );
 466         assert( pFuncAddr != NULL );
 467
 468         *pFuncAddr = NULL;
 469
 470         if ( pGExtendedOps == NULL ) {
 471                 return LDAP_OTHER;
 472         }
 473
 474         pTmpExtOp = pGExtendedOps;
 475         while ( pTmpExtOp != NULL ) {
 476                 int     rc;
 477
 478                 rc = strcasecmp( reqoid->bv_val, pTmpExtOp->ext_oid.bv_val );
 479                 if ( rc == 0 ) {
 480                         *pFuncAddr = pTmpExtOp->ext_func;
 481                         break;
 482                 }
 483                 pTmpExtOp = pTmpExtOp->ext_next;
 484         }
 485
 486         return ( *pFuncAddr == NULL ? 1 : 0 );
 487 }
 488
 489 /***************************************************************************
 490  * This function is similar to slapi_int_get_extop_plugin above. except it returns one OID
 491  * per call. It is called from root_dse_info (root_dse.c).
 492  * The function is a modified version of get_supported_extop (file extended.c).
 493  ***************************************************************************/
 494 struct berval *
 495 slapi_int_get_supported_extop( int index )
 496 {
 497         ExtendedOp      *ext;
 498
 499         for ( ext = pGExtendedOps ; ext != NULL && --index >= 0;
 500                         ext = ext->ext_next) {
 501                 ; /* empty */
 502         }
 503
 504         if ( ext == NULL ) {
 505                 return NULL;
 506         }
 507
 508         return &ext->ext_oid ;
 509 }
 510
 511 /*********************************************************************
 512  * Function Name:      slapi_int_load_plugin
 513  *
 514  * Description:        This routine loads the specified DLL, gets and executes the init function
 515  *                     if requested.
 516  *
 517  * Input:
 518  *                     pPlugin - a pointer to a Slapi_PBlock struct which will be passed to
 519  *                               the DLL init function.
 520  *                     path - path name of the DLL to be load.
 521  *                     initfunc - either the DLL initialization function or an OID of the
 522  *                                loaded extended operation.
 523  *                     doInit - if it is TRUE, execute the init function, otherwise, save the
 524  *                              function address but not execute it.
 525  *
 526  * Output:             pInitFunc - the function address of the loaded function. This param
 527  *                                 should be not be null if doInit is FALSE.
 528  *                     pLdHandle - handle returned by lt_dlopen()
 529  *
 530  * Return Values:      LDAP_SUCCESS, LDAP_LOCAL_ERROR
 531  *
 532  * Messages:           None
 533  *********************************************************************/
 534
 535 static int
 536 slapi_int_load_plugin(
 537         Slapi_PBlock    *pPlugin,
 538         const char      *path,
 539         const char      *initfunc,
 540         int             doInit,
 541         SLAPI_FUNC      *pInitFunc,
 542         lt_dlhandle     *pLdHandle )
 543 {
 544         int             rc = LDAP_SUCCESS;
 545         SLAPI_FUNC      fpInitFunc = NULL;
 546
 547         assert( pLdHandle != NULL );
 548
 549         if ( lt_dlinit() ) {
 550                 return LDAP_LOCAL_ERROR;
 551         }
 552
 553         /* load in the module */
 554         *pLdHandle = lt_dlopen( path );
 555         if ( *pLdHandle == NULL ) {
 556                 fprintf( stderr, "failed to load plugin %s: %s\n",
 557                          path, lt_dlerror() );
 558                 return LDAP_LOCAL_ERROR;
 559         }
 560
 561         fpInitFunc = (SLAPI_FUNC)lt_dlsym( *pLdHandle, initfunc );
 562         if ( fpInitFunc == NULL ) {
 563                 fprintf( stderr, "failed to find symbol %s in plugin %s: %s\n",
 564                          initfunc, path, lt_dlerror() );
 565                 lt_dlclose( *pLdHandle );
 566                 return LDAP_LOCAL_ERROR;
 567         }
 568
 569         if ( doInit ) {
 570                 rc = ( *fpInitFunc )( pPlugin );
 571                 if ( rc != LDAP_SUCCESS ) {
 572                         lt_dlclose( *pLdHandle );
 573                 }
 574
 575         } else {
 576                 *pInitFunc = fpInitFunc;
 577         }
 578
 579         return rc;
 580 }
 581
 582 /*
 583  * Special support for computed attribute plugins
 584  */
 585 int
 586 slapi_int_call_plugins(
 587         Backend         *be,
 588         int             funcType,
 589         Slapi_PBlock    *pPB )
 590 {
 591
 592         int rc = 0;
 593         SLAPI_FUNC *pGetPlugin = NULL, *tmpPlugin = NULL;
 594
 595         if ( pPB == NULL ) {
 596                 return 1;
 597         }
 598
 599         rc = slapi_int_get_plugins( be, funcType, &tmpPlugin );
 600         if ( rc != LDAP_SUCCESS || tmpPlugin == NULL ) {
 601                 /* Nothing to do, front-end should ignore. */
 602                 return rc;
 603         }
 604
 605         for ( pGetPlugin = tmpPlugin ; *pGetPlugin != NULL; pGetPlugin++ ) {
 606                 rc = (*pGetPlugin)(pPB);
 607
 608                 /*
 609                  * Only non-postoperation plugins abort processing on
 610                  * failure (confirmed with SLAPI specification).
 611                  */
 612                 if ( !SLAPI_PLUGIN_IS_POST_FN( funcType ) && rc != 0 ) {
 613                         /*
 614                          * Plugins generally return negative error codes
 615                          * to indicate failure, although in the case of
 616                          * bind plugins they may return SLAPI_BIND_xxx
 617                          */
 618                         break;
 619                 }
 620         }
 621
 622         slapi_ch_free( (void **)&tmpPlugin );
 623
 624         return rc;
 625 }
 626
 627 int
 628 slapi_int_read_config(
 629         Backend         *be,
 630         const char      *fname,
 631         int             lineno,
 632         int             argc,
 633         char            **argv )
 634 {
 635         int             iType = -1;
 636         int             numPluginArgc = 0;
 637
 638         if ( argc < 4 ) {
 639                 fprintf( stderr,
 640                         "%s: line %d: missing arguments "
 641                         "in \"plugin <plugin_type> <lib_path> "
 642                         "<init_function> [<arguments>]\" line\n",
 643                         fname, lineno );
 644                 return 1;
 645         }
 646
 647         /* automatically instantiate overlay if necessary */
 648         if ( !slapi_over_is_inst( be ) ) {
 649                 ConfigReply cr = { 0 };
 650                 if ( slapi_over_config( be, &cr ) != 0 ) {
 651                         fprintf( stderr, "Failed to instantiate SLAPI overlay: "
 652                                 "err=%d msg=\"%s\"\n", cr.err, cr.msg );
 653                         return -1;
 654                 }
 655         }
 656
 657         if ( strcasecmp( argv[1], "preoperation" ) == 0 ) {
 658                 iType = SLAPI_PLUGIN_PREOPERATION;
 659         } else if ( strcasecmp( argv[1], "postoperation" ) == 0 ) {
 660                 iType = SLAPI_PLUGIN_POSTOPERATION;
 661         } else if ( strcasecmp( argv[1], "extendedop" ) == 0 ) {
 662                 iType = SLAPI_PLUGIN_EXTENDEDOP;
 663         } else if ( strcasecmp( argv[1], "object" ) == 0 ) {
 664                 iType = SLAPI_PLUGIN_OBJECT;
 665         } else {
 666                 fprintf( stderr, "%s: line %d: invalid plugin type \"%s\".\n",
 667                                 fname, lineno, argv[1] );
 668                 return 1;
 669         }
 670
 671         numPluginArgc = argc - 4;
 672
 673         if ( iType == SLAPI_PLUGIN_PREOPERATION ||
 674                         iType == SLAPI_PLUGIN_EXTENDEDOP ||
 675                         iType == SLAPI_PLUGIN_POSTOPERATION ||
 676                         iType == SLAPI_PLUGIN_OBJECT ) {
 677                 int rc;
 678                 Slapi_PBlock *pPlugin;
 679
 680                 pPlugin = plugin_pblock_new( iType, numPluginArgc, argv );
 681                 if (pPlugin == NULL) {
 682                         return 1;
 683                 }
 684
 685                 if (iType == SLAPI_PLUGIN_EXTENDEDOP) {
 686                         rc = slapi_int_register_extop(be, &pGExtendedOps, pPlugin);
 687                         if ( rc != LDAP_SUCCESS ) {
 688                                 slapi_pblock_destroy( pPlugin );
 689                                 return 1;
 690                         }
 691                 }
 692
 693                 rc = slapi_int_register_plugin( be, pPlugin );
 694                 if ( rc != LDAP_SUCCESS ) {
 695                         if ( iType == SLAPI_PLUGIN_EXTENDEDOP ) {
 696                                 slapi_int_unregister_extop( be, &pGExtendedOps, pPlugin );
 697                         }
 698                         slapi_pblock_destroy( pPlugin );
 699                         return 1;
 700                 }
 701         }
 702
 703         return 0;
 704 }
 705
 706 void
 707 slapi_int_plugin_unparse(
 708         Backend *be,
 709         BerVarray *out
 710 )
 711 {
 712         Slapi_PBlock *pp;
 713         int i, j;
 714         char **argv, ibuf[32], *ptr;
 715         struct berval idx, bv;
 716
 717         *out = NULL;
 718         idx.bv_val = ibuf;
 719         i = 0;
 720
 721         for ( pp = SLAPI_BACKEND_PBLOCK( be );
 722               pp != NULL;
 723               slapi_pblock_get( pp, SLAPI_IBM_PBLOCK, &pp ) )
 724         {
 725                 slapi_pblock_get( pp, SLAPI_X_CONFIG_ARGV, &argv );
 726                 if ( argv == NULL ) /* could be dynamic plugin */
 727                         continue;
 728                 idx.bv_len = snprintf( idx.bv_val, sizeof( ibuf ), "{%d}", i );
 729                 if ( idx.bv_len >= sizeof( ibuf ) ) {
 730                         /* FIXME: just truncating by now */
 731                         idx.bv_len = sizeof( ibuf ) - 1;
 732                 }
 733                 bv.bv_len = idx.bv_len;
 734                 for (j=1; argv[j]; j++) {
 735                         bv.bv_len += strlen(argv[j]);
 736                         if ( j ) bv.bv_len++;
 737                 }
 738                 bv.bv_val = ch_malloc( bv.bv_len + 1 );
 739                 ptr = lutil_strcopy( bv.bv_val, ibuf );
 740                 for (j=1; argv[j]; j++) {
 741                         if ( j ) *ptr++ = ' ';
 742                         ptr = lutil_strcopy( ptr, argv[j] );
 743                 }
 744                 ber_bvarray_add( out, &bv );
 745         }
 746 }
 747