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

   1 /* OpenLDAP WiredTiger backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2002-2016 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 /* ACKNOWLEDGEMENTS:
  17  * This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
  18  * based on back-bdb for inclusion in OpenLDAP Software.
  19  * WiredTiger is a product of MongoDB Inc.
  20  */
  21
  22 #include "portable.h"
  23
  24 #include <stdio.h>
  25 #include "back-wt.h"
  26 #include "config.h"
  27
  28 int
  29 wt_add( Operation *op, SlapReply *rs )
  30 {
  31     struct wt_info *wi = (struct wt_info *) op->o_bd->be_private;
  32         struct berval   pdn;
  33         char textbuf[SLAP_TEXT_BUFLEN];
  34         size_t textlen = sizeof textbuf;
  35         AttributeDescription *children = slap_schema.si_ad_children;
  36         AttributeDescription *entry = slap_schema.si_ad_entry;
  37         ID eid;
  38         int num_retries = 0;
  39         int success;
  40         LDAPControl **postread_ctrl = NULL;
  41         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  42         int num_ctrls = 0;
  43         wt_ctx *wc;
  44         Entry *e = NULL;
  45         Entry *p = NULL;
  46         ID pid;
  47         int rc;
  48
  49     Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(wt_add) ": %s\n",
  50                    op->ora_e->e_name.bv_val, 0, 0);
  51
  52         ctrls[num_ctrls] = 0;
  53
  54         /* check entry's schema */
  55         rs->sr_err = entry_schema_check(
  56                 op, op->ora_e, NULL,
  57                 get_relax(op), 1, NULL, &rs->sr_text, textbuf, textlen );
  58     if ( rs->sr_err != LDAP_SUCCESS ) {
  59         Debug( LDAP_DEBUG_TRACE,
  60                            LDAP_XSTRING(wt_add)
  61                            ": entry failed schema check: %s (%d)\n",
  62                            rs->sr_text, rs->sr_err, 0 );
  63         goto return_results;
  64     }
  65
  66     /* add opattrs to shadow as well, only missing attrs will actually
  67      * be added; helps compatibility with older OL versions */
  68     rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
  69     if ( rs->sr_err != LDAP_SUCCESS ) {
  70         Debug( LDAP_DEBUG_TRACE,
  71                            LDAP_XSTRING(wt_add)
  72                            ": entry failed op attrs add: %s (%d)\n",
  73                            rs->sr_text, rs->sr_err, 0 );
  74         goto return_results;
  75     }
  76
  77     if ( get_assert( op ) &&
  78                  ( test_filter( op, op->ora_e, get_assertion( op ))
  79                    != LDAP_COMPARE_TRUE ))
  80     {
  81         rs->sr_err = LDAP_ASSERTION_FAILED;
  82         goto return_results;
  83     }
  84
  85         /* Not used
  86          * subentry = is_entry_subentry( op->ora_e );
  87          */
  88
  89     /*
  90      * Get the parent dn and see if the corresponding entry exists.
  91      */
  92     if ( be_issuffix( op->o_bd, &op->ora_e->e_nname ) ) {
  93         pdn = slap_empty_bv;
  94     } else {
  95         dnParent( &op->ora_e->e_nname, &pdn );
  96     }
  97
  98         wc = wt_ctx_get(op, wi);
  99         if( !wc ){
 100         Debug( LDAP_DEBUG_ANY,
 101                            LDAP_XSTRING(wt_add)
 102                            ": wt_ctx_get failed\n",
 103                            0, 0, 0 );
 104                 rs->sr_err = LDAP_OTHER;
 105                 rs->sr_text = "internal error";
 106         send_ldap_result( op, rs );
 107         return rs->sr_err;
 108         }
 109
 110         rc = wt_dn2entry(op->o_bd, wc, &op->o_req_ndn, &e);
 111         switch( rc ) {
 112         case 0:
 113                 rs->sr_err = LDAP_ALREADY_EXISTS;
 114                 goto return_results;
 115                 break;
 116         case WT_NOTFOUND:
 117                 break;
 118         default:
 119                 /* TODO: retry handling */
 120         Debug( LDAP_DEBUG_ANY,
 121                            LDAP_XSTRING(wt_add)
 122                            ": error at wt_dn2entry() rc=%d\n",
 123                            rc, 0, 0 );
 124                 rs->sr_err = LDAP_OTHER;
 125                 rs->sr_text = "internal error";
 126                 goto return_results;
 127         }
 128
 129     /* get parent entry */
 130         rc = wt_dn2pentry(op->o_bd, wc, &op->o_req_ndn, &p);
 131         switch( rc ){
 132         case 0:
 133         case WT_NOTFOUND:
 134                 break;
 135         default:
 136         Debug( LDAP_DEBUG_ANY,
 137                            LDAP_XSTRING(wt_add)
 138                            ": error at wt_dn2pentry() rc=%d\n",
 139                            rc, 0, 0 );
 140                 rs->sr_err = LDAP_OTHER;
 141                 rs->sr_text = "internal error";
 142                 goto return_results;
 143         }
 144
 145         if ( !p )
 146                 p = (Entry *)&slap_entry_root;
 147
 148         if ( !bvmatch( &pdn, &p->e_nname ) ) {
 149                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 150                                                                            op->o_tmpmemctx );
 151                 if ( p != (Entry *)&slap_entry_root ) {
 152                         rs->sr_ref = is_entry_referral( p )
 153                                 ? get_entry_referrals( op, p )
 154                                 : NULL;
 155                         wt_entry_return( p );
 156                 } else {
 157                         rs->sr_ref = NULL;
 158                 }
 159                 p = NULL;
 160         Debug( LDAP_DEBUG_TRACE,
 161                            LDAP_XSTRING(wt_add) ": parent "
 162                            "does not exist\n", 0, 0, 0 );
 163         rs->sr_err = LDAP_REFERRAL;
 164         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 165         goto return_results;
 166         }
 167
 168         rs->sr_err = access_allowed( op, p,
 169                                                                  children, NULL, ACL_WADD, NULL );
 170         if ( ! rs->sr_err ) {
 171                 /*
 172                 if ( p != (Entry *)&slap_entry_root )
 173                         wt_entry_return( op, p );
 174                 */
 175                 p = NULL;
 176
 177                 Debug( LDAP_DEBUG_TRACE,
 178                            LDAP_XSTRING(wt_add) ": no write access to parent\n",
 179                            0, 0, 0 );
 180                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 181                 rs->sr_text = "no write access to parent";
 182                 goto return_results;;
 183         }
 184
 185         if ( p != (Entry *)&slap_entry_root ) {
 186                 if ( is_entry_subentry( p ) ) {
 187                         wt_entry_return( p );
 188                         p = NULL;
 189                         /* parent is a subentry, don't allow add */
 190                         Debug( LDAP_DEBUG_TRACE,
 191                                    LDAP_XSTRING(wt_add) ": parent is subentry\n",
 192                                    0, 0, 0 );
 193                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 194                         rs->sr_text = "parent is a subentry";
 195                         goto return_results;;
 196                 }
 197
 198                 if ( is_entry_alias( p ) ) {
 199                         wt_entry_return( p );
 200                         p = NULL;
 201                         /* parent is an alias, don't allow add */
 202                         Debug( LDAP_DEBUG_TRACE,
 203                                    LDAP_XSTRING(wt_add) ": parent is alias\n",
 204                                    0, 0, 0 );
 205                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 206                         rs->sr_text = "parent is an alias";
 207                         goto return_results;;
 208                 }
 209
 210                 if ( is_entry_referral( p ) ) {
 211                         BerVarray ref = get_entry_referrals( op, p );
 212                         /* parent is a referral, don't allow add */
 213                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 214                                                                                    op->o_tmpmemctx );
 215                         rs->sr_ref = referral_rewrite( ref, &p->e_name,
 216                                                                                    &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 217                         ber_bvarray_free( ref );
 218                         wt_entry_return( p );
 219                         p = NULL;
 220                         Debug( LDAP_DEBUG_TRACE,
 221                                    LDAP_XSTRING(wt_add) ": parent is referral\n",
 222                                    0, 0, 0 );
 223
 224                         rs->sr_err = LDAP_REFERRAL;
 225                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 226                         goto return_results;
 227                 }
 228         }
 229
 230 #if 0
 231         if ( subentry ) {
 232                 /* FIXME: */
 233                 /* parent must be an administrative point of the required kind */
 234         }
 235 #endif
 236
 237         /* free parent */
 238         if ( p != (Entry *)&slap_entry_root ) {
 239                 pid = p->e_id;
 240                 if ( p->e_nname.bv_len ) {
 241                         struct berval ppdn;
 242
 243                         /* ITS#5326: use parent's DN if differs from provided one */
 244                         dnParent( &op->ora_e->e_name, &ppdn );
 245                         if ( !dn_match( &p->e_name, &ppdn ) ) {
 246                                 struct berval rdn;
 247                                 struct berval newdn;
 248
 249                                 dnRdn( &op->ora_e->e_name, &rdn );
 250
 251                                 build_new_dn( &newdn, &p->e_name, &rdn, NULL );
 252                                 if ( op->ora_e->e_name.bv_val != op->o_req_dn.bv_val )
 253                                         ber_memfree( op->ora_e->e_name.bv_val );
 254                                 op->ora_e->e_name = newdn;
 255
 256                                 /* FIXME: should check whether
 257                  * dnNormalize(newdn) == e->e_nname ... */
 258                         }
 259                 }
 260
 261                 wt_entry_return( p );
 262         }
 263         p = NULL;
 264
 265         rs->sr_err = access_allowed( op, op->ora_e,
 266                                                                  entry, NULL, ACL_WADD, NULL );
 267
 268         if ( ! rs->sr_err ) {
 269                 Debug( LDAP_DEBUG_TRACE,
 270                            LDAP_XSTRING(wt_add) ": no write access to entry\n",
 271                            0, 0, 0 );
 272                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 273                 rs->sr_text = "no write access to entry";
 274                 goto return_results;
 275         }
 276
 277         /*
 278          * Check ACL for attribute write access
 279          */
 280         if (!acl_check_modlist(op, op->ora_e, op->ora_modlist)) {
 281                 Debug( LDAP_DEBUG_TRACE,
 282                            LDAP_XSTRING(wt_add) ": no write access to attribute\n",
 283                            0, 0, 0 );
 284                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 285                 rs->sr_text = "no write access to attribute";
 286                 goto return_results;
 287         }
 288
 289         rc = wc->session->begin_transaction(wc->session, NULL);
 290         if( rc ) {
 291                 Debug( LDAP_DEBUG_TRACE,
 292                            LDAP_XSTRING(wt_add) ": begin_transaction failed: %s (%d)\n",
 293                            wiredtiger_strerror(rc), rc, 0 );
 294                 rs->sr_err = LDAP_OTHER;
 295                 rs->sr_text = "begin_transaction failed";
 296                 goto return_results;
 297         }
 298         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(wt_add) ": session id: %p\n",
 299                    wc->session, 0, 0 );
 300
 301         wt_next_id( op->o_bd, &eid );
 302         op->ora_e->e_id = eid;
 303
 304         rc = wt_dn2id_add( op, wc->session, pid, op->ora_e );
 305         if( rc ){
 306                 Debug( LDAP_DEBUG_TRACE,
 307                            LDAP_XSTRING(wt_add)
 308                            ": dn2id_add failed: %s (%d)\n",
 309                            wiredtiger_strerror(rc), rc, 0 );
 310                 switch( rc ) {
 311                 case WT_DUPLICATE_KEY:
 312                         rs->sr_err = LDAP_ALREADY_EXISTS;
 313                         break;
 314                 default:
 315                         rs->sr_err = LDAP_OTHER;
 316                 }
 317                 wc->session->rollback_transaction(wc->session, NULL);
 318                 goto return_results;
 319         }
 320
 321         rc = wt_id2entry_add( op, wc->session, op->ora_e );
 322         if ( rc ) {
 323                 Debug( LDAP_DEBUG_TRACE,
 324                            LDAP_XSTRING(wt_add)
 325                            ": id2entry_add failed: %s (%d)\n",
 326                            wiredtiger_strerror(rc), rc, 0 );
 327                 if ( rc == LDAP_ADMINLIMIT_EXCEEDED ) {
 328                         rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
 329                         rs->sr_text = "entry is too big";
 330                 } else {
 331                         rs->sr_err = LDAP_OTHER;
 332                         rs->sr_text = "entry store failed";
 333                 }
 334                 wc->session->rollback_transaction(wc->session, NULL);
 335                 goto return_results;
 336         }
 337
 338         /* add indices */
 339         rc = wt_index_entry_add( op, wc, op->ora_e );
 340         if ( rc ) {
 341                 Debug(LDAP_DEBUG_TRACE,
 342                           "<== " LDAP_XSTRING(wt_add)
 343                           ": index add failed: %s (%d)\n",
 344                           wiredtiger_strerror(rc), rc, 0 );
 345                 rs->sr_err = LDAP_OTHER;
 346                 rs->sr_text = "index add failed";
 347                 wc->session->rollback_transaction(wc->session, NULL);
 348                 goto return_results;
 349         }
 350
 351         rc = wc->session->commit_transaction(wc->session, NULL);
 352         if( rc ) {
 353                 Debug( LDAP_DEBUG_TRACE,
 354                            "<== " LDAP_XSTRING(wt_add)
 355                            ": commit_transaction failed: %s (%d)\n",
 356                            wiredtiger_strerror(rc), rc, 0 );
 357                 rs->sr_err = LDAP_OTHER;
 358                 rs->sr_text = "commit_transaction failed";
 359                 goto return_results;
 360         }
 361
 362         rs->sr_err = LDAP_SUCCESS;
 363
 364         /* post-read */
 365         if( op->o_postread ) {
 366                 if( postread_ctrl == NULL ) {
 367                         postread_ctrl = &ctrls[num_ctrls++];
 368                         ctrls[num_ctrls] = NULL;
 369                 }
 370                 if ( slap_read_controls( op, rs, op->ora_e,
 371                                                                  &slap_post_read_bv, postread_ctrl ) )
 372                 {
 373                         Debug( LDAP_DEBUG_TRACE,
 374                                    "<=- " LDAP_XSTRING(wt_add) ": post-read "
 375                                    "failed!\n", 0, 0, 0 );
 376                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
 377                                 /* FIXME: is it correct to abort
 378                  * operation if control fails? */
 379                                 goto return_results;
 380                         }
 381                 }
 382         }
 383
 384         Debug(LDAP_DEBUG_TRACE,
 385                   LDAP_XSTRING(wt_add) ": added%s id=%08lx dn=\"%s\"\n",
 386                   op->o_noop ? " (no-op)" : "",
 387                   op->ora_e->e_id, op->ora_e->e_dn );
 388
 389 return_results:
 390         success = rs->sr_err;
 391         send_ldap_result( op, rs );
 392
 393         slap_graduate_commit_csn( op );
 394
 395         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 396         slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 397         slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 398     }
 399     return rs->sr_err;
 400 }
 401
 402 /*
 403  * Local variables:
 404  * indent-tabs-mode: t
 405  * tab-width: 4
 406  * c-basic-offset: 4
 407  * End:
 408  */