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 2000-2006 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         slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
  55
  56         /* check entry's schema */
  57         rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
  58                 get_manageDIT(op), &rs->sr_text, textbuf, textlen );
  59         if ( rs->sr_err != LDAP_SUCCESS ) {
  60                 Debug( LDAP_DEBUG_TRACE,
  61                         LDAP_XSTRING(bdb_add) ": entry failed schema check: "
  62                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
  63                 goto return_results;
  64         }
  65
  66         subentry = is_entry_subentry( op->oq_add.rs_e );
  67
  68         /*
  69          * acquire an ID outside of the operation transaction
  70          * to avoid serializing adds.
  71          */
  72         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
  73         if( rs->sr_err != 0 ) {
  74                 Debug( LDAP_DEBUG_TRACE,
  75                         LDAP_XSTRING(bdb_add) ": next_id failed (%d)\n",
  76                         rs->sr_err, 0, 0 );
  77                 rs->sr_err = LDAP_OTHER;
  78                 rs->sr_text = "internal error";
  79                 goto return_results;
  80         }
  81
  82         if( 0 ) {
  83 retry:  /* transaction retry */
  84                 if( p ) {
  85                         /* free parent and reader lock */
  86                         if ( p != (Entry *)&slap_entry_root ) {
  87                                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
  88                         }
  89                         p = NULL;
  90                 }
  91                 rs->sr_err = TXN_ABORT( ltid );
  92                 ltid = NULL;
  93                 op->o_private = NULL;
  94                 op->o_do_not_cache = opinfo.boi_acl_cache;
  95                 if( rs->sr_err != 0 ) {
  96                         rs->sr_err = LDAP_OTHER;
  97                         rs->sr_text = "internal error";
  98                         goto return_results;
  99                 }
 100                 if ( op->o_abandon ) {
 101                         rs->sr_err = SLAPD_ABANDON;
 102                         goto return_results;
 103                 }
 104                 bdb_trans_backoff( ++num_retries );
 105         }
 106
 107         /* begin transaction */
 108         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 109                 bdb->bi_db_opflags );
 110         rs->sr_text = NULL;
 111         if( rs->sr_err != 0 ) {
 112                 Debug( LDAP_DEBUG_TRACE,
 113                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 114                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 115                 rs->sr_err = LDAP_OTHER;
 116                 rs->sr_text = "internal error";
 117                 goto return_results;
 118         }
 119
 120         locker = TXN_ID ( ltid );
 121
 122         opinfo.boi_bdb = op->o_bd;
 123         opinfo.boi_txn = ltid;
 124         opinfo.boi_locker = locker;
 125         opinfo.boi_err = 0;
 126         opinfo.boi_acl_cache = op->o_do_not_cache;
 127         op->o_private = &opinfo;
 128
 129         /*
 130          * Get the parent dn and see if the corresponding entry exists.
 131          */
 132         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 133                 pdn = slap_empty_bv;
 134         } else {
 135                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 136         }
 137
 138         /* get entry or parent */
 139         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 140                 1, locker, &lock );
 141         switch( rs->sr_err ) {
 142         case 0:
 143                 rs->sr_err = LDAP_ALREADY_EXISTS;
 144                 goto return_results;
 145         case DB_NOTFOUND:
 146                 break;
 147         case DB_LOCK_DEADLOCK:
 148         case DB_LOCK_NOTGRANTED:
 149                 goto retry;
 150         case LDAP_BUSY:
 151                 rs->sr_text = "ldap server busy";
 152                 goto return_results;
 153         default:
 154                 rs->sr_err = LDAP_OTHER;
 155                 rs->sr_text = "internal error";
 156                 goto return_results;
 157         }
 158
 159         p = ei->bei_e;
 160         if ( !p )
 161                 p = (Entry *)&slap_entry_root;
 162
 163         if ( !bvmatch( &pdn, &p->e_nname ) ) {
 164                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 165                         op->o_tmpmemctx );
 166                 rs->sr_ref = is_entry_referral( p )
 167                         ? get_entry_referrals( op, p )
 168                         : NULL;
 169                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 170                 p = NULL;
 171                 Debug( LDAP_DEBUG_TRACE,
 172                         LDAP_XSTRING(bdb_add) ": parent "
 173                         "does not exist\n", 0, 0, 0 );
 174
 175                 rs->sr_err = LDAP_REFERRAL;
 176                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 177                 goto return_results;
 178         }
 179
 180         rs->sr_err = access_allowed( op, p,
 181                 children, NULL, ACL_WADD, NULL );
 182
 183         if ( ! rs->sr_err ) {
 184                 switch( opinfo.boi_err ) {
 185                 case DB_LOCK_DEADLOCK:
 186                 case DB_LOCK_NOTGRANTED:
 187                         goto retry;
 188                 }
 189
 190                 Debug( LDAP_DEBUG_TRACE,
 191                         LDAP_XSTRING(bdb_add) ": no write access to parent\n",
 192                         0, 0, 0 );
 193                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 194                 rs->sr_text = "no write access to parent";
 195                 goto return_results;;
 196         }
 197
 198         if ( is_entry_subentry( p ) ) {
 199                 /* parent is a subentry, don't allow add */
 200                 Debug( LDAP_DEBUG_TRACE,
 201                         LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 202                         0, 0, 0 );
 203                 rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 204                 rs->sr_text = "parent is a subentry";
 205                 goto return_results;;
 206         }
 207         if ( is_entry_alias( p ) ) {
 208                 /* parent is an alias, don't allow add */
 209                 Debug( LDAP_DEBUG_TRACE,
 210                         LDAP_XSTRING(bdb_add) ": parent is alias\n",
 211                         0, 0, 0 );
 212                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 213                 rs->sr_text = "parent is an alias";
 214                 goto return_results;;
 215         }
 216
 217         if ( is_entry_referral( p ) ) {
 218                 /* parent is a referral, don't allow add */
 219                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 220                         op->o_tmpmemctx );
 221                 rs->sr_ref = get_entry_referrals( op, p );
 222                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 223                 p = NULL;
 224                 Debug( LDAP_DEBUG_TRACE,
 225                         LDAP_XSTRING(bdb_add) ": parent is referral\n",
 226                         0, 0, 0 );
 227
 228                 rs->sr_err = LDAP_REFERRAL;
 229                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 230                 goto return_results;
 231         }
 232
 233         if ( subentry ) {
 234                 /* FIXME: */
 235                 /* parent must be an administrative point of the required kind */
 236         }
 237
 238         /* free parent and reader lock */
 239         if ( p != (Entry *)&slap_entry_root ) {
 240                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 241         }
 242         p = NULL;
 243
 244         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 245                 entry, NULL, ACL_WADD, NULL );
 246
 247         if ( ! rs->sr_err ) {
 248                 switch( opinfo.boi_err ) {
 249                 case DB_LOCK_DEADLOCK:
 250                 case DB_LOCK_NOTGRANTED:
 251                         goto retry;
 252                 }
 253
 254                 Debug( LDAP_DEBUG_TRACE,
 255                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 256                         0, 0, 0 );
 257                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 258                 rs->sr_text = "no write access to entry";
 259                 goto return_results;;
 260         }
 261
 262         /* nested transaction */
 263         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 264                 bdb->bi_db_opflags );
 265         rs->sr_text = NULL;
 266         if( rs->sr_err != 0 ) {
 267                 Debug( LDAP_DEBUG_TRACE,
 268                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 269                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 270                 rs->sr_err = LDAP_OTHER;
 271                 rs->sr_text = "internal error";
 272                 goto return_results;
 273         }
 274
 275         /* dn2id index */
 276         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 277         if ( rs->sr_err != 0 ) {
 278                 Debug( LDAP_DEBUG_TRACE,
 279                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 280                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 281
 282                 switch( rs->sr_err ) {
 283                 case DB_LOCK_DEADLOCK:
 284                 case DB_LOCK_NOTGRANTED:
 285                         goto retry;
 286                 case DB_KEYEXIST:
 287                         rs->sr_err = LDAP_ALREADY_EXISTS;
 288                         break;
 289                 default:
 290                         rs->sr_err = LDAP_OTHER;
 291                 }
 292                 goto return_results;
 293         }
 294
 295         /* attribute indexes */
 296         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 297         if ( rs->sr_err != LDAP_SUCCESS ) {
 298                 Debug( LDAP_DEBUG_TRACE,
 299                         LDAP_XSTRING(bdb_add) ": index_entry_add failed\n",
 300                         0, 0, 0 );
 301                 switch( rs->sr_err ) {
 302                 case DB_LOCK_DEADLOCK:
 303                 case DB_LOCK_NOTGRANTED:
 304                         goto retry;
 305                 default:
 306                         rs->sr_err = LDAP_OTHER;
 307                 }
 308                 rs->sr_text = "index generation failed";
 309                 goto return_results;
 310         }
 311
 312         /* id2entry index */
 313         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 314         if ( rs->sr_err != 0 ) {
 315                 Debug( LDAP_DEBUG_TRACE,
 316                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 317                         0, 0, 0 );
 318                 switch( rs->sr_err ) {
 319                 case DB_LOCK_DEADLOCK:
 320                 case DB_LOCK_NOTGRANTED:
 321                         goto retry;
 322                 default:
 323                         rs->sr_err = LDAP_OTHER;
 324                 }
 325                 rs->sr_text = "entry store failed";
 326                 goto return_results;
 327         }
 328
 329         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 330                 rs->sr_err = LDAP_OTHER;
 331                 rs->sr_text = "txn_commit(2) failed";
 332                 goto return_results;
 333         }
 334
 335         /* post-read */
 336         if( op->o_postread ) {
 337                 if( postread_ctrl == NULL ) {
 338                         postread_ctrl = &ctrls[num_ctrls++];
 339                         ctrls[num_ctrls] = NULL;
 340                 }
 341                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 342                         &slap_post_read_bv, postread_ctrl ) )
 343                 {
 344                         Debug( LDAP_DEBUG_TRACE,
 345                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 346                                 "failed!\n", 0, 0, 0 );
 347                         goto return_results;
 348                 }
 349         }
 350
 351         if ( op->o_noop ) {
 352                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 353                         rs->sr_text = "txn_abort (no-op) failed";
 354                 } else {
 355                         rs->sr_err = LDAP_X_NO_OPERATION;
 356                         ltid = NULL;
 357                         goto return_results;
 358                 }
 359
 360         } else {
 361                 struct berval nrdn;
 362                 Entry *e = entry_dup( op->ora_e );
 363
 364                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 365                 if (pdn.bv_len) {
 366                         nrdn.bv_val = e->e_nname.bv_val;
 367                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 368                 } else {
 369                         nrdn = e->e_nname;
 370                 }
 371
 372                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 373
 374                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 375                         rs->sr_text = "txn_commit failed";
 376                 } else {
 377                         rs->sr_err = LDAP_SUCCESS;
 378                 }
 379         }
 380
 381         ltid = NULL;
 382         op->o_private = NULL;
 383
 384         if ( rs->sr_err != LDAP_SUCCESS ) {
 385                 Debug( LDAP_DEBUG_TRACE,
 386                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 387                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 388                 rs->sr_err = LDAP_OTHER;
 389                 goto return_results;
 390         }
 391
 392         Debug(LDAP_DEBUG_TRACE,
 393                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 394                 op->o_noop ? " (no-op)" : "",
 395                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 396
 397         rs->sr_text = NULL;
 398         if( num_ctrls ) rs->sr_ctrls = ctrls;
 399
 400 return_results:
 401         send_ldap_result( op, rs );
 402         slap_graduate_commit_csn( op );
 403
 404         if( ltid != NULL ) {
 405                 TXN_ABORT( ltid );
 406         }
 407         op->o_private = NULL;
 408
 409         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 410                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 411                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 412         }
 413
 414         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 415                 TXN_CHECKPOINT( bdb->bi_dbenv,
 416                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 417         }
 418         return rs->sr_err;
 419 }