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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright (c) 1995 Regents of the University of Michigan.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * provided that this notice is preserved and that due credit is given
  12  * to the University of Michigan at Ann Arbor. The name of the University
  13  * may not be used to endorse or promote products derived from this
  14  * software without specific prior written permission. This software
  15  * is provided ``as is'' without express or implied warranty.
  16  */
  17
  18 #include "portable.h"
  19
  20 #include <stdio.h>
  21 #include <ac/string.h>
  22 #include <ac/time.h>
  23 #include <ac/socket.h>
  24
  25 #include "ldap_pvt.h"
  26 #include "slap.h"
  27
  28 #ifdef LDAP_SLAPI
  29 #include "slapi.h"
  30 static Slapi_PBlock *initAddPlugin( Backend *be, Connection *conn, Operation *op,
  31         struct berval *dn, Entry *e, int manageDSAit );
  32 static int doPreAddPluginFNs( Backend *be, Slapi_PBlock *pb );
  33 static void doPostAddPluginFNs( Backend *be, Slapi_PBlock *pb );
  34 #endif /* LDAP_SLAPI */
  35
  36 int
  37 do_add( Connection *conn, Operation *op )
  38 {
  39         BerElement      *ber = op->o_ber;
  40         char            *last;
  41         struct berval dn = { 0, NULL };
  42         ber_len_t       len;
  43         ber_tag_t       tag;
  44         Entry           *e;
  45         Backend         *be;
  46         Modifications   *modlist = NULL;
  47         Modifications   **modtail = &modlist;
  48         Modifications   tmp;
  49         const char *text;
  50         int                     rc = LDAP_SUCCESS;
  51         int     manageDSAit;
  52 #ifdef LDAP_SLAPI
  53         Slapi_PBlock    *pb = NULL;
  54 #endif /* LDAP_SLAPI */
  55
  56 #ifdef NEW_LOGGING
  57         LDAP_LOG( OPERATION, ENTRY, "do_add: conn %d enter\n", conn->c_connid,0,0 );
  58 #else
  59         Debug( LDAP_DEBUG_TRACE, "do_add\n", 0, 0, 0 );
  60 #endif
  61         /*
  62          * Parse the add request.  It looks like this:
  63          *
  64          *      AddRequest := [APPLICATION 14] SEQUENCE {
  65          *              name    DistinguishedName,
  66          *              attrs   SEQUENCE OF SEQUENCE {
  67          *                      type    AttributeType,
  68          *                      values  SET OF AttributeValue
  69          *              }
  70          *      }
  71          */
  72
  73         /* get the name */
  74         if ( ber_scanf( ber, "{m", /*}*/ &dn ) == LBER_ERROR ) {
  75 #ifdef NEW_LOGGING
  76                 LDAP_LOG( OPERATION, ERR,
  77                         "do_add: conn %d ber_scanf failed\n", conn->c_connid,0,0 );
  78 #else
  79                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
  80 #endif
  81                 send_ldap_disconnect( conn, op,
  82                         LDAP_PROTOCOL_ERROR, "decoding error" );
  83                 return -1;
  84         }
  85
  86         e = (Entry *) ch_calloc( 1, sizeof(Entry) );
  87
  88         rc = dnPrettyNormal( NULL, &dn, &e->e_name, &e->e_nname );
  89
  90         if( rc != LDAP_SUCCESS ) {
  91 #ifdef NEW_LOGGING
  92                 LDAP_LOG( OPERATION, ERR,
  93                         "do_add: conn %d invalid dn (%s)\n", conn->c_connid, dn.bv_val, 0 );
  94 #else
  95                 Debug( LDAP_DEBUG_ANY, "do_add: invalid dn (%s)\n", dn.bv_val, 0, 0 );
  96 #endif
  97                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
  98                             "invalid DN", NULL, NULL );
  99                 goto done;
 100         }
 101
 102 #ifdef NEW_LOGGING
 103         LDAP_LOG( OPERATION, ARGS,
 104                 "do_add: conn %d  dn (%s)\n", conn->c_connid, e->e_dn, 0 );
 105 #else
 106         Debug( LDAP_DEBUG_ARGS, "do_add: dn (%s)\n", e->e_dn, 0, 0 );
 107 #endif
 108
 109         /* get the attrs */
 110         for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
 111             tag = ber_next_element( ber, &len, last ) )
 112         {
 113                 Modifications *mod;
 114                 ber_tag_t rtag;
 115
 116 #ifdef SLAP_NVALUES
 117                 tmp.sml_nvalues = NULL;
 118 #endif
 119
 120                 rtag = ber_scanf( ber, "{m{W}}", &tmp.sml_type, &tmp.sml_values );
 121
 122                 if ( rtag == LBER_ERROR ) {
 123 #ifdef NEW_LOGGING
 124                         LDAP_LOG( OPERATION, ERR,
 125                                    "do_add: conn %d      decoding error \n", conn->c_connid, 0, 0 );
 126 #else
 127                         Debug( LDAP_DEBUG_ANY, "do_add: decoding error\n", 0, 0, 0 );
 128 #endif
 129                         send_ldap_disconnect( conn, op,
 130                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 131                         rc = -1;
 132                         goto done;
 133                 }
 134
 135                 if ( tmp.sml_values == NULL ) {
 136 #ifdef NEW_LOGGING
 137                         LDAP_LOG( OPERATION, INFO,
 138                                 "do_add: conn %d         no values for type %s\n",
 139                                 conn->c_connid, tmp.sml_type.bv_val, 0 );
 140 #else
 141                         Debug( LDAP_DEBUG_ANY, "no values for type %s\n",
 142                                 tmp.sml_type.bv_val, 0, 0 );
 143 #endif
 144                         send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 145                                 NULL, "no values for attribute type", NULL, NULL );
 146                         goto done;
 147                 }
 148
 149                 mod  = (Modifications *) ch_malloc( sizeof(Modifications) );
 150                 mod->sml_op = LDAP_MOD_ADD;
 151                 mod->sml_next = NULL;
 152                 mod->sml_desc = NULL;
 153                 mod->sml_type = tmp.sml_type;
 154                 mod->sml_values = tmp.sml_values;
 155 #ifdef SLAP_NVALUES
 156                 mod->sml_nvalues = NULL;
 157 #endif
 158
 159                 *modtail = mod;
 160                 modtail = &mod->sml_next;
 161         }
 162
 163         if ( ber_scanf( ber, /*{*/ "}") == LBER_ERROR ) {
 164 #ifdef NEW_LOGGING
 165                 LDAP_LOG( OPERATION, ERR,
 166                         "do_add: conn %d ber_scanf failed\n", conn->c_connid, 0, 0 );
 167 #else
 168                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
 169 #endif
 170                 send_ldap_disconnect( conn, op,
 171                         LDAP_PROTOCOL_ERROR, "decoding error" );
 172                 rc = -1;
 173                 goto done;
 174         }
 175
 176         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 177 #ifdef NEW_LOGGING
 178                 LDAP_LOG( OPERATION, INFO,
 179                         "do_add: conn %d get_ctrls failed\n", conn->c_connid, 0, 0 );
 180 #else
 181                 Debug( LDAP_DEBUG_ANY, "do_add: get_ctrls failed\n", 0, 0, 0 );
 182 #endif
 183                 goto done;
 184         }
 185
 186         if ( modlist == NULL ) {
 187                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 188                         NULL, "no attributes provided", NULL, NULL );
 189                 goto done;
 190         }
 191
 192         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu ADD dn=\"%s\"\n",
 193             op->o_connid, op->o_opid, e->e_dn, 0, 0 );
 194
 195         if( e->e_nname.bv_len == 0 ) {
 196                 /* protocolError may be a more appropriate error */
 197                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 198                         NULL, "root DSE already exists",
 199                         NULL, NULL );
 200                 goto done;
 201
 202         } else if ( bvmatch( &e->e_nname, &global_schemandn ) ) {
 203                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 204                         NULL, "subschema subentry already exists",
 205                         NULL, NULL );
 206                 goto done;
 207         }
 208
 209         manageDSAit = get_manageDSAit( op );
 210
 211         /*
 212          * We could be serving multiple database backends.  Select the
 213          * appropriate one, or send a referral to our "referral server"
 214          * if we don't hold it.
 215          */
 216         be = select_backend( &e->e_nname, manageDSAit, 0 );
 217         if ( be == NULL ) {
 218                 BerVarray ref = referral_rewrite( default_referral,
 219                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 220
 221                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 222                         NULL, NULL, ref ? ref : default_referral, NULL );
 223
 224                 if ( ref ) ber_bvarray_free( ref );
 225                 goto done;
 226         }
 227
 228         /* check restrictions */
 229         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 230         if( rc != LDAP_SUCCESS ) {
 231                 send_ldap_result( conn, op, rc,
 232                         NULL, text, NULL, NULL );
 233                 goto done;
 234         }
 235
 236         /* check for referrals */
 237         rc = backend_check_referrals( be, conn, op, &e->e_name, &e->e_nname );
 238         if ( rc != LDAP_SUCCESS ) {
 239                 goto done;
 240         }
 241
 242 #ifdef LDAP_SLAPI
 243         pb = initAddPlugin( be, conn, op, &dn, e, manageDSAit );
 244 #endif /* LDAP_SLAPI */
 245
 246         /*
 247          * do the add if 1 && (2 || 3)
 248          * 1) there is an add function implemented in this backend;
 249          * 2) this backend is master for what it holds;
 250          * 3) it's a replica and the dn supplied is the updatedn.
 251          */
 252         if ( be->be_add ) {
 253                 /* do the update here */
 254                 int repl_user = be_isupdate(be, &op->o_ndn );
 255 #ifndef SLAPD_MULTIMASTER
 256                 if ( !be->be_update_ndn.bv_len || repl_user )
 257 #endif
 258                 {
 259                         int update = be->be_update_ndn.bv_len;
 260                         char textbuf[SLAP_TEXT_BUFLEN];
 261                         size_t textlen = sizeof textbuf;
 262
 263                         rc = slap_mods_check( modlist, update, &text,
 264                                 textbuf, textlen );
 265
 266                         if( rc != LDAP_SUCCESS ) {
 267                                 send_ldap_result( conn, op, rc,
 268                                         NULL, text, NULL, NULL );
 269                                 goto done;
 270                         }
 271
 272                         if ( !repl_user ) {
 273                                 for( modtail = &modlist;
 274                                         *modtail != NULL;
 275                                         modtail = &(*modtail)->sml_next )
 276                                 {
 277                                         assert( (*modtail)->sml_op == LDAP_MOD_ADD );
 278                                         assert( (*modtail)->sml_desc != NULL );
 279                                 }
 280                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 281                                         textbuf, textlen );
 282                                 if( rc != LDAP_SUCCESS ) {
 283                                         send_ldap_result( conn, op, rc,
 284                                                 NULL, text, NULL, NULL );
 285                                         goto done;
 286                                 }
 287                         }
 288
 289                         rc = slap_mods2entry( modlist, &e, repl_user, &text,
 290                                 textbuf, textlen );
 291                         if( rc != LDAP_SUCCESS ) {
 292                                 send_ldap_result( conn, op, rc,
 293                                         NULL, text, NULL, NULL );
 294                                 goto done;
 295                         }
 296
 297 #ifdef LDAP_SLAPI
 298                         /*
 299                          * Call the preoperation plugin here, because the entry
 300                          * will actually contain something.
 301                          */
 302                         rc = doPreAddPluginFNs( be, pb );
 303                         if ( rc != LDAP_SUCCESS ) {
 304                                 /* plugin will have sent result */
 305                                 goto done;
 306                         }
 307 #endif /* LDAP_SLAPI */
 308
 309                         if ( (*be->be_add)( be, conn, op, e ) == 0 ) {
 310 #ifdef SLAPD_MULTIMASTER
 311                                 if ( !repl_user )
 312 #endif
 313                                 {
 314                                         replog( be, op, &e->e_name, &e->e_nname, e );
 315                                 }
 316                                 be_entry_release_w( be, conn, op, e );
 317                                 e = NULL;
 318                         }
 319
 320 #ifndef SLAPD_MULTIMASTER
 321                 } else {
 322                         BerVarray defref;
 323                         BerVarray ref;
 324 #ifdef LDAP_SLAPI
 325                         /*
 326                          * SLAPI_ADD_ENTRY will be empty, but this may be acceptable
 327                          * on replicas (for now, it involves the minimum code intrusion).
 328                          */
 329                         rc = doPreAddPluginFNs( be, pb );
 330                         if ( rc != LDAP_SUCCESS ) {
 331                                 /* plugin will have sent result */
 332                                 goto done;
 333                         }
 334 #endif /* LDAP_SLAPI */
 335
 336                         defref = be->be_update_refs
 337                                 ? be->be_update_refs : default_referral;
 338                         ref = referral_rewrite( defref,
 339                                 NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 340
 341                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 342                                 ref ? ref : defref, NULL );
 343
 344                         if ( ref ) ber_bvarray_free( ref );
 345 #endif /* SLAPD_MULTIMASTER */
 346                 }
 347         } else {
 348 #ifdef LDAP_SLAPI
 349             rc = doPreAddPluginFNs( be, pb );
 350             if ( rc != LDAP_SUCCESS ) {
 351                 /* plugin will have sent result */
 352                 goto done;
 353             }
 354 #endif
 355 #ifdef NEW_LOGGING
 356             LDAP_LOG( OPERATION, INFO,
 357                        "do_add: conn %d  no backend support\n", conn->c_connid, 0, 0 );
 358 #else
 359             Debug( LDAP_DEBUG_ARGS, "    do_add: no backend support\n", 0, 0, 0 );
 360 #endif
 361             send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 362                               NULL, "operation not supported within namingContext", NULL, NULL );
 363         }
 364
 365 #ifdef LDAP_SLAPI
 366         doPostAddPluginFNs( be, pb );
 367 #endif /* LDAP_SLAPI */
 368
 369 done:
 370         if( modlist != NULL ) {
 371                 slap_mods_free( modlist );
 372         }
 373         if( e != NULL ) {
 374                 entry_free( e );
 375         }
 376
 377         return rc;
 378 }
 379
 380 int
 381 slap_mods2entry(
 382         Modifications *mods,
 383         Entry **e,
 384         int repl_user,
 385         const char **text,
 386         char *textbuf, size_t textlen )
 387 {
 388         Attribute **tail = &(*e)->e_attrs;
 389         assert( *tail == NULL );
 390
 391         *text = textbuf;
 392
 393         for( ; mods != NULL; mods = mods->sml_next ) {
 394                 Attribute *attr;
 395
 396                 assert( mods->sml_op == LDAP_MOD_ADD );
 397                 assert( mods->sml_desc != NULL );
 398
 399                 attr = attr_find( (*e)->e_attrs, mods->sml_desc );
 400
 401                 if( attr != NULL ) {
 402 #define SLURPD_FRIENDLY
 403 #ifdef SLURPD_FRIENDLY
 404                         ber_len_t i,j;
 405
 406                         if( !repl_user ) {
 407                                 snprintf( textbuf, textlen,
 408                                         "attribute '%s' provided more than once",
 409                                         mods->sml_desc->ad_cname.bv_val );
 410                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 411                         }
 412
 413                         for( i=0; attr->a_vals[i].bv_val; i++ ) {
 414                                 /* count them */
 415                         }
 416                         for( j=0; mods->sml_values[j].bv_val; j++ ) {
 417                                 /* count them */
 418                         }
 419                         j++;    /* NULL */
 420
 421                         attr->a_vals = ch_realloc( attr->a_vals,
 422                                 sizeof( struct berval ) * (i+j) );
 423
 424                         /* should check for duplicates */
 425
 426                         AC_MEMCPY( &attr->a_vals[i], mods->sml_values,
 427                                 sizeof( struct berval ) * j );
 428
 429                         /* trim the mods array */
 430                         ch_free( mods->sml_values );
 431                         mods->sml_values = NULL;
 432
 433 #ifdef SLAP_NVALUES
 434                         if( mods->sml_nvalues ) {
 435                                 attr->a_nvals = ch_realloc( attr->a_nvals,
 436                                         sizeof( struct berval ) * (i+j) );
 437
 438                                 AC_MEMCPY( &attr->a_nvals[i], mods->sml_nvalues,
 439                                         sizeof( struct berval ) * j );
 440
 441                                 /* trim the mods array */
 442                                 ch_free( mods->sml_nvalues );
 443                                 mods->sml_nvalues = NULL;
 444                         } else {
 445                                 attr->a_nvals = attr->a_vals;
 446                         }
 447 #endif
 448
 449                         continue;
 450 #else
 451                         snprintf( textbuf, textlen,
 452                                 "attribute '%s' provided more than once",
 453                                 mods->sml_desc->ad_cname.bv_val );
 454                         return LDAP_TYPE_OR_VALUE_EXISTS;
 455 #endif
 456                 }
 457
 458                 if( mods->sml_values[1].bv_val != NULL ) {
 459                         /* check for duplicates */
 460                         int             i, j;
 461                         MatchingRule *mr = mods->sml_desc->ad_type->sat_equality;
 462
 463                         /* check if the values we're adding already exist */
 464                         if( mr == NULL || !mr->smr_match ) {
 465                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 466                                         /* test asserted values against themselves */
 467                                         for( j = 0; j < i; j++ ) {
 468                                                 if ( bvmatch( &mods->sml_bvalues[i],
 469                                                         &mods->sml_bvalues[j] ) ) {
 470                                                         /* value exists already */
 471                                                         snprintf( textbuf, textlen,
 472                                                                 "%s: value #%d provided more than once",
 473                                                                 mods->sml_desc->ad_cname.bv_val, j );
 474                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 475                                                 }
 476                                         }
 477                                 }
 478
 479                         } else {
 480                                 int             rc;
 481 #ifdef SLAP_NVALUES
 482                                 int match;
 483
 484                                 for ( i = 0; mods->sml_nvalues[i].bv_val != NULL; i++ ) {
 485                                         /* test asserted values against themselves */
 486                                         for( j = 0; j < i; j++ ) {
 487                                                 rc = value_match( &match, mods->sml_desc, mr,
 488                                                         SLAP_MR_EQUALITY | SLAP_MR_VALUE_OF_ASSERTION_SYNTAX
 489                                                         | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 490                                                         | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 491                                                         &mods->sml_nvalues[i], &mods->sml_nvalues[j], text );
 492                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 493                                                         /* value exists already */
 494                                                         snprintf( textbuf, textlen,
 495                                                                 "%s: value #%d provided more than once",
 496                                                                 mods->sml_desc->ad_cname.bv_val, j );
 497                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 498                                                 }
 499                                         }
 500                                 }
 501 #else
 502                                 rc = modify_check_duplicates( mods->sml_desc, mr,
 503                                                 NULL, mods->sml_bvalues, 0,
 504                                                 text, textbuf, textlen );
 505 #endif
 506                                 if ( rc != LDAP_SUCCESS ) {
 507                                         return rc;
 508                                 }
 509                         }
 510                 }
 511
 512                 attr = ch_calloc( 1, sizeof(Attribute) );
 513
 514                 /* move ad to attr structure */
 515                 attr->a_desc = mods->sml_desc;
 516                 mods->sml_desc = NULL;
 517
 518                 /* move values to attr structure */
 519                 /*      should check for duplicates */
 520                 attr->a_vals = mods->sml_values;
 521                 mods->sml_values = NULL;
 522
 523 #ifdef SLAP_NVALUES
 524                 if ( mods->sml_nvalues ) {
 525                         attr->a_nvals = mods->sml_nvalues;
 526                         mods->sml_nvalues = NULL;
 527                 } else {
 528                         attr->a_nvals = attr->a_vals;
 529                 }
 530 #endif
 531
 532                 *tail = attr;
 533                 tail = &attr->a_next;
 534         }
 535
 536         return LDAP_SUCCESS;
 537 }
 538
 539 #ifdef LDAP_SLAPI
 540 static Slapi_PBlock *initAddPlugin( Backend *be, Connection *conn, Operation *op,
 541         struct berval *dn, Entry *e, int manageDSAit )
 542 {
 543         Slapi_PBlock *pb;
 544
 545         pb = op->o_pb;
 546
 547         slapi_x_backend_set_pb( pb, be );
 548         slapi_x_connection_set_pb( pb, conn );
 549         slapi_x_operation_set_pb( pb, op );
 550
 551         slapi_pblock_set( pb, SLAPI_ADD_TARGET, (void *)dn->bv_val );
 552         slapi_pblock_set( pb, SLAPI_ADD_ENTRY, (void *)e );
 553         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 554
 555         return pb;
 556 }
 557
 558 static int doPreAddPluginFNs( Backend *be, Slapi_PBlock *pb )
 559 {
 560         int rc;
 561
 562         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_ADD_FN, pb );
 563         if ( rc != 0 ) {
 564                 /*
 565                  * A preoperation plugin failure will abort the
 566                  * entire operation.
 567                  */
 568 #ifdef NEW_LOGGING
 569                 LDAP_LOG( OPERATION, INFO, "do_add: add preoperation plugin failed\n",
 570                                 0, 0, 0);
 571 #else
 572                 Debug(LDAP_DEBUG_TRACE, "do_add: add preoperation plugin failed.\n",
 573                                 0, 0, 0);
 574                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&rc ) != 0 )
 575                         rc = LDAP_OTHER;
 576 #endif
 577         } else {
 578                 rc = LDAP_SUCCESS;
 579         }
 580
 581         return rc;
 582 }
 583
 584 static void doPostAddPluginFNs( Backend *be, Slapi_PBlock *pb )
 585 {
 586         int rc;
 587
 588         rc = doPluginFNs( be, SLAPI_PLUGIN_POST_ADD_FN, pb );
 589         if ( rc != 0 ) {
 590 #ifdef NEW_LOGGING
 591                 LDAP_LOG( OPERATION, INFO, "do_add: add postoperation plugin failed\n",
 592                                 0, 0, 0);
 593 #else
 594                 Debug(LDAP_DEBUG_TRACE, "do_add: add preoperation plugin failed.\n",
 595                                 0, 0, 0);
 596 #endif
 597         }
 598 }
 599 #endif /* LDAP_SLAPI */