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

   1 /* add.c - ldap BerkeleyDB back-end add routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2007 The OpenLDAP Foundation.
   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
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21
  22 #include "back-bdb.h"
  23
  24 int
  25 bdb_add(Operation *op, SlapReply *rs )
  26 {
  27         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  28         struct berval   pdn;
  29         Entry           *p = NULL;
  30         EntryInfo       *ei;
  31         char textbuf[SLAP_TEXT_BUFLEN];
  32         size_t textlen = sizeof textbuf;
  33         AttributeDescription *children = slap_schema.si_ad_children;
  34         AttributeDescription *entry = slap_schema.si_ad_entry;
  35         DB_TXN          *ltid = NULL, *lt2;
  36         struct bdb_op_info opinfo = {0};
  37         int subentry;
  38         u_int32_t       locker = 0;
  39         DB_LOCK         lock;
  40
  41         int             num_retries = 0;
  42
  43         LDAPControl **postread_ctrl = NULL;
  44         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  45         int num_ctrls = 0;
  46
  47         Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_add) ": %s\n",
  48                 op->oq_add.rs_e->e_name.bv_val, 0, 0);
  49
  50         ctrls[num_ctrls] = 0;
  51
  52         /* add opattrs to shadow as well, only missing attrs will actually
  53          * be added; helps compatibility with older OL versions */
  54         rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
  55         if ( rs->sr_err != LDAP_SUCCESS ) {
  56                 Debug( LDAP_DEBUG_TRACE,
  57                         LDAP_XSTRING(bdb_add) ": entry failed op attrs add: "
  58                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
  59                 goto return_results;
  60         }
  61
  62         /* check entry's schema */
  63         rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
  64                 get_manageDIT(op), &rs->sr_text, textbuf, textlen );
  65         if ( rs->sr_err != LDAP_SUCCESS ) {
  66                 Debug( LDAP_DEBUG_TRACE,
  67                         LDAP_XSTRING(bdb_add) ": entry failed schema check: "
  68                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
  69                 goto return_results;
  70         }
  71
  72         subentry = is_entry_subentry( op->oq_add.rs_e );
  73
  74         /*
  75          * acquire an ID outside of the operation transaction
  76          * to avoid serializing adds.
  77          */
  78         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
  79         if( rs->sr_err != 0 ) {
  80                 Debug( LDAP_DEBUG_TRACE,
  81                         LDAP_XSTRING(bdb_add) ": next_id failed (%d)\n",
  82                         rs->sr_err, 0, 0 );
  83                 rs->sr_err = LDAP_OTHER;
  84                 rs->sr_text = "internal error";
  85                 goto return_results;
  86         }
  87
  88         if( 0 ) {
  89 retry:  /* transaction retry */
  90                 if( p ) {
  91                         /* free parent and reader lock */
  92                         if ( p != (Entry *)&slap_entry_root ) {
  93                                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
  94                         }
  95                         p = NULL;
  96                 }
  97                 rs->sr_err = TXN_ABORT( ltid );
  98                 ltid = NULL;
  99                 op->o_private = NULL;
 100                 op->o_do_not_cache = opinfo.boi_acl_cache;
 101                 if( rs->sr_err != 0 ) {
 102                         rs->sr_err = LDAP_OTHER;
 103                         rs->sr_text = "internal error";
 104                         goto return_results;
 105                 }
 106                 if ( op->o_abandon ) {
 107                         rs->sr_err = SLAPD_ABANDON;
 108                         goto return_results;
 109                 }
 110                 bdb_trans_backoff( ++num_retries );
 111         }
 112
 113         /* begin transaction */
 114         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 115                 bdb->bi_db_opflags );
 116         rs->sr_text = NULL;
 117         if( rs->sr_err != 0 ) {
 118                 Debug( LDAP_DEBUG_TRACE,
 119                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 120                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 121                 rs->sr_err = LDAP_OTHER;
 122                 rs->sr_text = "internal error";
 123                 goto return_results;
 124         }
 125
 126         locker = TXN_ID ( ltid );
 127
 128         opinfo.boi_bdb = op->o_bd;
 129         opinfo.boi_txn = ltid;
 130         opinfo.boi_locker = locker;
 131         opinfo.boi_err = 0;
 132         opinfo.boi_acl_cache = op->o_do_not_cache;
 133         op->o_private = &opinfo;
 134
 135         /*
 136          * Get the parent dn and see if the corresponding entry exists.
 137          */
 138         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 139                 pdn = slap_empty_bv;
 140         } else {
 141                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 142         }
 143
 144         /* get entry or parent */
 145         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 146                 1, locker, &lock );
 147         switch( rs->sr_err ) {
 148         case 0:
 149                 rs->sr_err = LDAP_ALREADY_EXISTS;
 150                 goto return_results;
 151         case DB_NOTFOUND:
 152                 break;
 153         case DB_LOCK_DEADLOCK:
 154         case DB_LOCK_NOTGRANTED:
 155                 goto retry;
 156         case LDAP_BUSY:
 157                 rs->sr_text = "ldap server busy";
 158                 goto return_results;
 159         default:
 160                 rs->sr_err = LDAP_OTHER;
 161                 rs->sr_text = "internal error";
 162                 goto return_results;
 163         }
 164
 165         p = ei->bei_e;
 166         if ( !p )
 167                 p = (Entry *)&slap_entry_root;
 168
 169         if ( !bvmatch( &pdn, &p->e_nname ) ) {
 170                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 171                         op->o_tmpmemctx );
 172                 rs->sr_ref = is_entry_referral( p )
 173                         ? get_entry_referrals( op, p )
 174                         : NULL;
 175                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 176                 p = NULL;
 177                 Debug( LDAP_DEBUG_TRACE,
 178                         LDAP_XSTRING(bdb_add) ": parent "
 179                         "does not exist\n", 0, 0, 0 );
 180
 181                 rs->sr_err = LDAP_REFERRAL;
 182                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 183                 goto return_results;
 184         }
 185
 186         rs->sr_err = access_allowed( op, p,
 187                 children, NULL, ACL_WADD, NULL );
 188
 189         if ( ! rs->sr_err ) {
 190                 switch( opinfo.boi_err ) {
 191                 case DB_LOCK_DEADLOCK:
 192                 case DB_LOCK_NOTGRANTED:
 193                         goto retry;
 194                 }
 195
 196                 Debug( LDAP_DEBUG_TRACE,
 197                         LDAP_XSTRING(bdb_add) ": no write access to parent\n",
 198                         0, 0, 0 );
 199                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 200                 rs->sr_text = "no write access to parent";
 201                 goto return_results;;
 202         }
 203
 204         if ( is_entry_subentry( p ) ) {
 205                 /* parent is a subentry, don't allow add */
 206                 Debug( LDAP_DEBUG_TRACE,
 207                         LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 208                         0, 0, 0 );
 209                 rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 210                 rs->sr_text = "parent is a subentry";
 211                 goto return_results;;
 212         }
 213         if ( is_entry_alias( p ) ) {
 214                 /* parent is an alias, don't allow add */
 215                 Debug( LDAP_DEBUG_TRACE,
 216                         LDAP_XSTRING(bdb_add) ": parent is alias\n",
 217                         0, 0, 0 );
 218                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 219                 rs->sr_text = "parent is an alias";
 220                 goto return_results;;
 221         }
 222
 223         if ( is_entry_referral( p ) ) {
 224                 /* parent is a referral, don't allow add */
 225                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 226                         op->o_tmpmemctx );
 227                 rs->sr_ref = get_entry_referrals( op, p );
 228                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 229                 p = NULL;
 230                 Debug( LDAP_DEBUG_TRACE,
 231                         LDAP_XSTRING(bdb_add) ": parent is referral\n",
 232                         0, 0, 0 );
 233
 234                 rs->sr_err = LDAP_REFERRAL;
 235                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 236                 goto return_results;
 237         }
 238
 239         if ( subentry ) {
 240                 /* FIXME: */
 241                 /* parent must be an administrative point of the required kind */
 242         }
 243
 244         /* free parent and reader lock */
 245         if ( p != (Entry *)&slap_entry_root ) {
 246                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 247         }
 248         p = NULL;
 249
 250         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 251                 entry, NULL, ACL_WADD, NULL );
 252
 253         if ( ! rs->sr_err ) {
 254                 switch( opinfo.boi_err ) {
 255                 case DB_LOCK_DEADLOCK:
 256                 case DB_LOCK_NOTGRANTED:
 257                         goto retry;
 258                 }
 259
 260                 Debug( LDAP_DEBUG_TRACE,
 261                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 262                         0, 0, 0 );
 263                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 264                 rs->sr_text = "no write access to entry";
 265                 goto return_results;;
 266         }
 267
 268         /* nested transaction */
 269         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 270                 bdb->bi_db_opflags );
 271         rs->sr_text = NULL;
 272         if( rs->sr_err != 0 ) {
 273                 Debug( LDAP_DEBUG_TRACE,
 274                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 275                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 276                 rs->sr_err = LDAP_OTHER;
 277                 rs->sr_text = "internal error";
 278                 goto return_results;
 279         }
 280
 281         /* dn2id index */
 282         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 283         if ( rs->sr_err != 0 ) {
 284                 Debug( LDAP_DEBUG_TRACE,
 285                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 286                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 287
 288                 switch( rs->sr_err ) {
 289                 case DB_LOCK_DEADLOCK:
 290                 case DB_LOCK_NOTGRANTED:
 291                         goto retry;
 292                 case DB_KEYEXIST:
 293                         rs->sr_err = LDAP_ALREADY_EXISTS;
 294                         break;
 295                 default:
 296                         rs->sr_err = LDAP_OTHER;
 297                 }
 298                 goto return_results;
 299         }
 300
 301         /* attribute indexes */
 302         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 303         if ( rs->sr_err != LDAP_SUCCESS ) {
 304                 Debug( LDAP_DEBUG_TRACE,
 305                         LDAP_XSTRING(bdb_add) ": index_entry_add failed\n",
 306                         0, 0, 0 );
 307                 switch( rs->sr_err ) {
 308                 case DB_LOCK_DEADLOCK:
 309                 case DB_LOCK_NOTGRANTED:
 310                         goto retry;
 311                 default:
 312                         rs->sr_err = LDAP_OTHER;
 313                 }
 314                 rs->sr_text = "index generation failed";
 315                 goto return_results;
 316         }
 317
 318         /* id2entry index */
 319         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 320         if ( rs->sr_err != 0 ) {
 321                 Debug( LDAP_DEBUG_TRACE,
 322                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 323                         0, 0, 0 );
 324                 switch( rs->sr_err ) {
 325                 case DB_LOCK_DEADLOCK:
 326                 case DB_LOCK_NOTGRANTED:
 327                         goto retry;
 328                 default:
 329                         rs->sr_err = LDAP_OTHER;
 330                 }
 331                 rs->sr_text = "entry store failed";
 332                 goto return_results;
 333         }
 334
 335         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 336                 rs->sr_err = LDAP_OTHER;
 337                 rs->sr_text = "txn_commit(2) failed";
 338                 goto return_results;
 339         }
 340
 341         /* post-read */
 342         if( op->o_postread ) {
 343                 if( postread_ctrl == NULL ) {
 344                         postread_ctrl = &ctrls[num_ctrls++];
 345                         ctrls[num_ctrls] = NULL;
 346                 }
 347                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 348                         &slap_post_read_bv, postread_ctrl ) )
 349                 {
 350                         Debug( LDAP_DEBUG_TRACE,
 351                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 352                                 "failed!\n", 0, 0, 0 );
 353                         goto return_results;
 354                 }
 355         }
 356
 357         if ( op->o_noop ) {
 358                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 359                         rs->sr_text = "txn_abort (no-op) failed";
 360                 } else {
 361                         rs->sr_err = LDAP_X_NO_OPERATION;
 362                         ltid = NULL;
 363                         goto return_results;
 364                 }
 365
 366         } else {
 367                 struct berval nrdn;
 368                 Entry *e = entry_dup( op->ora_e );
 369
 370                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 371                 if (pdn.bv_len) {
 372                         nrdn.bv_val = e->e_nname.bv_val;
 373                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 374                 } else {
 375                         nrdn = e->e_nname;
 376                 }
 377
 378                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 379
 380                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 381                         rs->sr_text = "txn_commit failed";
 382                 } else {
 383                         rs->sr_err = LDAP_SUCCESS;
 384                 }
 385         }
 386
 387         ltid = NULL;
 388         op->o_private = NULL;
 389
 390         if ( rs->sr_err != LDAP_SUCCESS ) {
 391                 Debug( LDAP_DEBUG_TRACE,
 392                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 393                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 394                 rs->sr_err = LDAP_OTHER;
 395                 goto return_results;
 396         }
 397
 398         Debug(LDAP_DEBUG_TRACE,
 399                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 400                 op->o_noop ? " (no-op)" : "",
 401                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 402
 403         rs->sr_text = NULL;
 404         if( num_ctrls ) rs->sr_ctrls = ctrls;
 405
 406 return_results:
 407         send_ldap_result( op, rs );
 408         slap_graduate_commit_csn( op );
 409
 410         if( ltid != NULL ) {
 411                 TXN_ABORT( ltid );
 412         }
 413         op->o_private = NULL;
 414
 415         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 416                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 417                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 418         }
 419
 420         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 421                 TXN_CHECKPOINT( bdb->bi_dbenv,
 422                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 423         }
 424         return rs->sr_err;
 425 }