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                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
  87                         p = NULL;
  88                 }
  89                 rs->sr_err = TXN_ABORT( ltid );
  90                 ltid = NULL;
  91                 op->o_private = NULL;
  92                 op->o_do_not_cache = opinfo.boi_acl_cache;
  93                 if( rs->sr_err != 0 ) {
  94                         rs->sr_err = LDAP_OTHER;
  95                         rs->sr_text = "internal error";
  96                         goto return_results;
  97                 }
  98                 if ( op->o_abandon ) {
  99                         rs->sr_err = SLAPD_ABANDON;
 100                         goto return_results;
 101                 }
 102                 ldap_pvt_thread_yield();
 103                 bdb_trans_backoff( ++num_retries );
 104         }
 105
 106         /* begin transaction */
 107         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 108                 bdb->bi_db_opflags );
 109         rs->sr_text = NULL;
 110         if( rs->sr_err != 0 ) {
 111                 Debug( LDAP_DEBUG_TRACE,
 112                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 113                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 114                 rs->sr_err = LDAP_OTHER;
 115                 rs->sr_text = "internal error";
 116                 goto return_results;
 117         }
 118
 119         locker = TXN_ID ( ltid );
 120
 121         opinfo.boi_bdb = op->o_bd;
 122         opinfo.boi_txn = ltid;
 123         opinfo.boi_locker = locker;
 124         opinfo.boi_err = 0;
 125         opinfo.boi_acl_cache = op->o_do_not_cache;
 126         op->o_private = &opinfo;
 127
 128         /*
 129          * Get the parent dn and see if the corresponding entry exists.
 130          */
 131         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 132                 pdn = slap_empty_bv;
 133         } else {
 134                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 135         }
 136
 137         /* get entry or parent */
 138         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 139                 1, locker, &lock );
 140         switch( rs->sr_err ) {
 141         case 0:
 142                 rs->sr_err = LDAP_ALREADY_EXISTS;
 143                 goto return_results;
 144         case DB_NOTFOUND:
 145                 break;
 146         case DB_LOCK_DEADLOCK:
 147         case DB_LOCK_NOTGRANTED:
 148                 goto retry;
 149         case LDAP_BUSY:
 150                 rs->sr_text = "ldap server busy";
 151                 goto return_results;
 152         default:
 153                 rs->sr_err = LDAP_OTHER;
 154                 rs->sr_text = "internal error";
 155                 goto return_results;
 156         }
 157
 158         p = ei->bei_e;
 159         if ( p ) {
 160                 if ( !bvmatch( &pdn, &p->e_nname ) ) {
 161                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 162                                 op->o_tmpmemctx );
 163                         rs->sr_ref = is_entry_referral( p )
 164                                 ? get_entry_referrals( op, p )
 165                                 : NULL;
 166                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 167                         p = NULL;
 168                         Debug( LDAP_DEBUG_TRACE,
 169                                 LDAP_XSTRING(bdb_add) ": parent "
 170                                 "does not exist\n", 0, 0, 0 );
 171
 172                         rs->sr_err = LDAP_REFERRAL;
 173                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 174                         goto return_results;
 175                 }
 176
 177                 rs->sr_err = access_allowed( op, p,
 178                         children, NULL, ACL_WADD, NULL );
 179
 180                 if ( ! rs->sr_err ) {
 181                         switch( opinfo.boi_err ) {
 182                         case DB_LOCK_DEADLOCK:
 183                         case DB_LOCK_NOTGRANTED:
 184                                 goto retry;
 185                         }
 186
 187                         Debug( LDAP_DEBUG_TRACE,
 188                                 LDAP_XSTRING(bdb_add) ": no write access to parent\n",
 189                                 0, 0, 0 );
 190                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 191                         rs->sr_text = "no write access to parent";
 192                         goto return_results;;
 193                 }
 194
 195                 if ( is_entry_subentry( p ) ) {
 196                         /* parent is a subentry, don't allow add */
 197                         Debug( LDAP_DEBUG_TRACE,
 198                                 LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 199                                 0, 0, 0 );
 200                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 201                         rs->sr_text = "parent is a subentry";
 202                         goto return_results;;
 203                 }
 204                 if ( is_entry_alias( p ) ) {
 205                         /* parent is an alias, don't allow add */
 206                         Debug( LDAP_DEBUG_TRACE,
 207                                 LDAP_XSTRING(bdb_add) ": parent is alias\n",
 208                                 0, 0, 0 );
 209                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 210                         rs->sr_text = "parent is an alias";
 211                         goto return_results;;
 212                 }
 213
 214                 if ( is_entry_referral( p ) ) {
 215                         /* parent is a referral, don't allow add */
 216                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 217                                 op->o_tmpmemctx );
 218                         rs->sr_ref = get_entry_referrals( op, p );
 219                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 220                         p = NULL;
 221                         Debug( LDAP_DEBUG_TRACE,
 222                                 LDAP_XSTRING(bdb_add) ": parent is referral\n",
 223                                 0, 0, 0 );
 224
 225                         rs->sr_err = LDAP_REFERRAL;
 226                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 227                         goto return_results;
 228                 }
 229
 230                 if ( subentry ) {
 231                         /* FIXME: */
 232                         /* parent must be an administrative point of the required kind */
 233                 }
 234
 235                 /* free parent and reader lock */
 236                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 237                 p = NULL;
 238
 239         } else {
 240                 /*
 241                  * no parent!
 242                  *  if not attempting to add entry at suffix or with parent ""
 243                  */
 244                 if ((( !be_isroot( op ) && !be_shadow_update(op) )
 245                         || pdn.bv_len > 0 ) && !is_entry_glue( op->oq_add.rs_e ))
 246                 {
 247                         Debug( LDAP_DEBUG_TRACE,
 248                                 LDAP_XSTRING(bdb_add) ": %s denied\n",
 249                                 pdn.bv_len == 0 ? "suffix" : "entry at root",
 250                                 0, 0 );
 251                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 252                         goto return_results;
 253                 }
 254         }
 255
 256         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 257                 entry, NULL, ACL_WADD, NULL );
 258
 259         if ( ! rs->sr_err ) {
 260                 switch( opinfo.boi_err ) {
 261                 case DB_LOCK_DEADLOCK:
 262                 case DB_LOCK_NOTGRANTED:
 263                         goto retry;
 264                 }
 265
 266                 Debug( LDAP_DEBUG_TRACE,
 267                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 268                         0, 0, 0 );
 269                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 270                 rs->sr_text = "no write access to entry";
 271                 goto return_results;;
 272         }
 273
 274         /* nested transaction */
 275         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 276                 bdb->bi_db_opflags );
 277         rs->sr_text = NULL;
 278         if( rs->sr_err != 0 ) {
 279                 Debug( LDAP_DEBUG_TRACE,
 280                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 281                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 282                 rs->sr_err = LDAP_OTHER;
 283                 rs->sr_text = "internal error";
 284                 goto return_results;
 285         }
 286
 287         /* dn2id index */
 288         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 289         if ( rs->sr_err != 0 ) {
 290                 Debug( LDAP_DEBUG_TRACE,
 291                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 292                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 293
 294                 switch( rs->sr_err ) {
 295                 case DB_LOCK_DEADLOCK:
 296                 case DB_LOCK_NOTGRANTED:
 297                         goto retry;
 298                 case DB_KEYEXIST:
 299                         rs->sr_err = LDAP_ALREADY_EXISTS;
 300                         break;
 301                 default:
 302                         rs->sr_err = LDAP_OTHER;
 303                 }
 304                 goto return_results;
 305         }
 306
 307         /* attribute indexes */
 308         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 309         if ( rs->sr_err != LDAP_SUCCESS ) {
 310                 Debug( LDAP_DEBUG_TRACE,
 311                         LDAP_XSTRING(bdb_add) ": index_entry_add failed\n",
 312                         0, 0, 0 );
 313                 switch( rs->sr_err ) {
 314                 case DB_LOCK_DEADLOCK:
 315                 case DB_LOCK_NOTGRANTED:
 316                         goto retry;
 317                 default:
 318                         rs->sr_err = LDAP_OTHER;
 319                 }
 320                 rs->sr_text = "index generation failed";
 321                 goto return_results;
 322         }
 323
 324         /* id2entry index */
 325         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 326         if ( rs->sr_err != 0 ) {
 327                 Debug( LDAP_DEBUG_TRACE,
 328                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 329                         0, 0, 0 );
 330                 switch( rs->sr_err ) {
 331                 case DB_LOCK_DEADLOCK:
 332                 case DB_LOCK_NOTGRANTED:
 333                         goto retry;
 334                 default:
 335                         rs->sr_err = LDAP_OTHER;
 336                 }
 337                 rs->sr_text = "entry store failed";
 338                 goto return_results;
 339         }
 340
 341         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 342                 rs->sr_err = LDAP_OTHER;
 343                 rs->sr_text = "txn_commit(2) failed";
 344                 goto return_results;
 345         }
 346
 347         /* post-read */
 348         if( op->o_postread ) {
 349                 if( postread_ctrl == NULL ) {
 350                         postread_ctrl = &ctrls[num_ctrls++];
 351                         ctrls[num_ctrls] = NULL;
 352                 }
 353                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 354                         &slap_post_read_bv, postread_ctrl ) )
 355                 {
 356                         Debug( LDAP_DEBUG_TRACE,
 357                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 358                                 "failed!\n", 0, 0, 0 );
 359                         goto return_results;
 360                 }
 361         }
 362
 363         if ( op->o_noop ) {
 364                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 365                         rs->sr_text = "txn_abort (no-op) failed";
 366                 } else {
 367                         rs->sr_err = LDAP_X_NO_OPERATION;
 368                         ltid = NULL;
 369                         goto return_results;
 370                 }
 371
 372         } else {
 373                 struct berval nrdn;
 374                 Entry *e = entry_dup( op->ora_e );
 375
 376                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 377                 if (pdn.bv_len) {
 378                         nrdn.bv_val = e->e_nname.bv_val;
 379                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 380                 } else {
 381                         nrdn = e->e_nname;
 382                 }
 383
 384                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 385
 386                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 387                         rs->sr_text = "txn_commit failed";
 388                 } else {
 389                         rs->sr_err = LDAP_SUCCESS;
 390                 }
 391         }
 392
 393         ltid = NULL;
 394         op->o_private = NULL;
 395
 396         if ( rs->sr_err != LDAP_SUCCESS ) {
 397                 Debug( LDAP_DEBUG_TRACE,
 398                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 399                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 400                 rs->sr_err = LDAP_OTHER;
 401                 goto return_results;
 402         }
 403
 404         Debug(LDAP_DEBUG_TRACE,
 405                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 406                 op->o_noop ? " (no-op)" : "",
 407                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 408
 409         rs->sr_text = NULL;
 410         if( num_ctrls ) rs->sr_ctrls = ctrls;
 411
 412 return_results:
 413         send_ldap_result( op, rs );
 414         if ( !SLAP_SHADOW( op->o_bd ))
 415                 slap_graduate_commit_csn( op );
 416
 417         if( ltid != NULL ) {
 418                 TXN_ABORT( ltid );
 419         }
 420         op->o_private = NULL;
 421
 422         if( postread_ctrl != NULL ) {
 423                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 424                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 425         }
 426
 427         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 428                 ldap_pvt_thread_yield();
 429                 TXN_CHECKPOINT( bdb->bi_dbenv,
 430                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 431         }
 432         return rs->sr_err;
 433 }