git.sur5r.net Git - openldap/blob - servers/slapd/back-ldbm/modify.c

   1 /* modify.c - ldbm backend modify routine */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/string.h>
  13 #include <ac/socket.h>
  14 #include <ac/time.h>
  15
  16 #include "slap.h"
  17 #include "back-ldbm.h"
  18 #include "proto-back-ldbm.h"
  19
  20 /* We need this function because of LDAP modrdn. If we do not
  21  * add this there would be a bunch of code replication here
  22  * and there and of course the likelihood of bugs increases.
  23  * Juan C. Gomez (gomez@engr.sgi.com) 05/18/99
  24  */
  25 int ldbm_modify_internal(
  26     Operation   *op,
  27     Modifications       *modlist,
  28     Entry       *e,
  29         const char **text,
  30         char *textbuf,
  31         size_t textlen
  32 )
  33 {
  34         int rc = LDAP_SUCCESS;
  35         Modification    *mod;
  36         Modifications   *ml;
  37         Attribute       *save_attrs;
  38         Attribute       *ap;
  39
  40 #ifdef NEW_LOGGING
  41         LDAP_LOG( BACK_LDBM, ENTRY,  "ldbm_modify_internal: %s\n", e->e_name.bv_val, 0, 0 );
  42 #else
  43         Debug(LDAP_DEBUG_TRACE, "ldbm_modify_internal: %s\n", e->e_name.bv_val, 0, 0);
  44 #endif
  45
  46
  47         if ( !acl_check_modlist( op, e, modlist )) {
  48                 return LDAP_INSUFFICIENT_ACCESS;
  49         }
  50
  51         save_attrs = e->e_attrs;
  52         e->e_attrs = attrs_dup( e->e_attrs );
  53
  54         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
  55                 mod = &ml->sml_mod;
  56
  57                 switch ( mod->sm_op ) {
  58                 case LDAP_MOD_ADD:
  59 #ifdef NEW_LOGGING
  60                         LDAP_LOG( BACK_LDBM, DETAIL1, "ldbm_modify_internal: add\n", 0, 0, 0);
  61 #else
  62                         Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: add\n", 0, 0, 0);
  63 #endif
  64
  65                         rc = modify_add_values( e, mod, get_permissiveModify( op ),
  66                                                 text, textbuf, textlen );
  67                         if( rc != LDAP_SUCCESS ) {
  68 #ifdef NEW_LOGGING
  69                                 LDAP_LOG( BACK_LDBM, INFO,
  70                                         "ldbm_modify_internal: failed %d (%s)\n", rc, *text, 0 );
  71 #else
  72                                 Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
  73                                         rc, *text, 0);
  74 #endif
  75                         }
  76                         break;
  77
  78                 case LDAP_MOD_DELETE:
  79 #ifdef NEW_LOGGING
  80                         LDAP_LOG( BACK_LDBM, DETAIL1, "ldbm_modify_internal: delete\n", 0,0,0);
  81 #else
  82                         Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: delete\n", 0, 0, 0);
  83 #endif
  84
  85                         rc = modify_delete_values( e, mod, get_permissiveModify( op ),
  86                                                         text, textbuf, textlen );
  87                         assert( rc != LDAP_TYPE_OR_VALUE_EXISTS );
  88                         if( rc != LDAP_SUCCESS ) {
  89 #ifdef NEW_LOGGING
  90                                 LDAP_LOG( BACK_LDBM, INFO,
  91                                         "ldbm_modify_internal: failed %d (%s)\n", rc, *text, 0 );
  92 #else
  93                                 Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
  94                                         rc, *text, 0);
  95 #endif
  96                         }
  97                         break;
  98
  99                 case LDAP_MOD_REPLACE:
 100 #ifdef NEW_LOGGING
 101                         LDAP_LOG( BACK_LDBM, DETAIL1, "ldbm_modify_internal:  replace\n",0,0,0);
 102 #else
 103                         Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: replace\n", 0, 0, 0);
 104 #endif
 105
 106                         rc = modify_replace_values( e, mod, get_permissiveModify( op ),
 107                                                         text, textbuf, textlen );
 108                         if( rc != LDAP_SUCCESS ) {
 109 #ifdef NEW_LOGGING
 110                                 LDAP_LOG( BACK_LDBM, INFO,
 111                                         "ldbm_modify_internal: failed %d (%s)\n", rc, *text, 0 );
 112 #else
 113                                 Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
 114                                         rc, *text, 0);
 115 #endif
 116                         }
 117                         break;
 118
 119                 case LDAP_MOD_INCREMENT:
 120 #ifdef NEW_LOGGING
 121                         LDAP_LOG( BACK_LDBM, DETAIL1,
 122                                 "ldbm_modify_internal:  increment\n",0,0,0);
 123 #else
 124                         Debug(LDAP_DEBUG_ARGS,
 125                                 "ldbm_modify_internal:  increment\n",0,0,0);
 126 #endif
 127
 128                         rc = modify_increment_values( e, mod, get_permissiveModify( op ),
 129                                 text, textbuf, textlen );
 130                         if( rc != LDAP_SUCCESS ) {
 131 #ifdef NEW_LOGGING
 132                                 LDAP_LOG( BACK_LDBM, INFO,
 133                                         "ldbm_modify_internal: failed %d (%s)\n", rc, *text, 0 );
 134 #else
 135                                 Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
 136                                         rc, *text, 0);
 137 #endif
 138                         }
 139                         break;
 140
 141                 case SLAP_MOD_SOFTADD:
 142 #ifdef NEW_LOGGING
 143                         LDAP_LOG( BACK_LDBM, DETAIL1,
 144                                 "ldbm_modify_internal: softadd\n", 0, 0, 0 );
 145 #else
 146                         Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: softadd\n", 0, 0, 0);
 147 #endif
 148
 149                         /* Avoid problems in index_add_mods()
 150                          * We need to add index if necessary.
 151                          */
 152                         mod->sm_op = LDAP_MOD_ADD;
 153
 154                         rc = modify_add_values( e, mod, get_permissiveModify( op ),
 155                                                 text, textbuf, textlen );
 156                         mod->sm_op = SLAP_MOD_SOFTADD;
 157                         if ( rc == LDAP_TYPE_OR_VALUE_EXISTS ) {
 158                                 rc = LDAP_SUCCESS;
 159                         }
 160
 161                         if( rc != LDAP_SUCCESS ) {
 162 #ifdef NEW_LOGGING
 163                                 LDAP_LOG( BACK_LDBM, INFO,
 164                                            "ldbm_modify_internal: failed %d (%s)\n", rc, *text, 0 );
 165 #else
 166                                 Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
 167                                         rc, *text, 0);
 168 #endif
 169                         }
 170                         break;
 171
 172                 default:
 173 #ifdef NEW_LOGGING
 174                         LDAP_LOG( BACK_LDBM, ERR,
 175                                 "ldbm_modify_internal: invalid op %d\n", mod->sm_op, 0, 0 );
 176 #else
 177                         Debug(LDAP_DEBUG_ANY, "ldbm_modify_internal: invalid op %d\n",
 178                                 mod->sm_op, 0, 0);
 179 #endif
 180
 181                         rc = LDAP_OTHER;
 182                         *text = "Invalid modify operation";
 183 #ifdef NEW_LOGGING
 184                         LDAP_LOG( BACK_LDBM, INFO,
 185                                 "ldbm_modify_internal: %d (%s)\n", rc, *text, 0 );
 186 #else
 187                         Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
 188                                 rc, *text, 0);
 189 #endif
 190                 }
 191
 192                 if ( rc != LDAP_SUCCESS ) {
 193                         goto exit;
 194                 }
 195
 196                 /* If objectClass was modified, reset the flags */
 197                 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
 198                         e->e_ocflags = 0;
 199                 }
 200
 201                 /* check if modified attribute was indexed */
 202                 rc = index_is_indexed( op->o_bd, mod->sm_desc );
 203                 if ( rc == LDAP_SUCCESS ) {
 204                         ap = attr_find( save_attrs, mod->sm_desc );
 205                         if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
 206
 207                         ap = attr_find( e->e_attrs, mod->sm_desc );
 208                         if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
 209                 }
 210         }
 211
 212         /* check that the entry still obeys the schema */
 213         rc = entry_schema_check( op->o_bd, e, save_attrs, text, textbuf, textlen );
 214
 215         if ( rc != LDAP_SUCCESS ) {
 216 #ifdef NEW_LOGGING
 217                 LDAP_LOG( BACK_LDBM, ERR,
 218                         "ldbm_modify_internal: entry failed schema check: %s\n",
 219                         *text, 0, 0 );
 220 #else
 221                 Debug( LDAP_DEBUG_ANY, "entry failed schema check: %s\n",
 222                         *text, 0, 0 );
 223 #endif
 224
 225                 goto exit;
 226         }
 227
 228         /* check for abandon */
 229         if ( op->o_abandon ) {
 230                 rc = SLAPD_ABANDON;
 231                 goto exit;
 232         }
 233
 234         /* update the indices of the modified attributes */
 235
 236         /* start with deleting the old index entries */
 237         for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 238                 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
 239                         rc = index_values( op, ap->a_desc,
 240                                 ap->a_nvals,
 241                                 e->e_id, SLAP_INDEX_DELETE_OP );
 242                         if ( rc != LDAP_SUCCESS ) {
 243 #ifdef NEW_LOGGING
 244                                 LDAP_LOG( BACK_LDBM, ERR,
 245                                         "ldbm_modify_internal: Attribute index delete failure\n",
 246                                         0, 0, 0 );
 247 #else
 248                                 Debug( LDAP_DEBUG_ANY,
 249                                        "Attribute index delete failure",
 250                                        0, 0, 0 );
 251 #endif
 252                                 goto exit;
 253                         }
 254                         ap->a_flags &= ~SLAP_ATTR_IXDEL;
 255                 }
 256         }
 257
 258         /* add the new index entries */
 259         for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
 260                 if ( ap->a_flags & SLAP_ATTR_IXADD ) {
 261                         rc = index_values( op, ap->a_desc,
 262                                 ap->a_nvals,
 263                                 e->e_id, SLAP_INDEX_ADD_OP );
 264                         if ( rc != LDAP_SUCCESS ) {
 265 #ifdef NEW_LOGGING
 266                                 LDAP_LOG( BACK_LDBM, ERR,
 267                                         "ldbm_modify_internal: Attribute index add failure\n",
 268                                         0, 0, 0 );
 269 #else
 270                                 Debug( LDAP_DEBUG_ANY,
 271                                        "Attribute index add failure",
 272                                        0, 0, 0 );
 273 #endif
 274                                 goto exit;
 275                         }
 276                         ap->a_flags &= ~SLAP_ATTR_IXADD;
 277                 }
 278         }
 279
 280 exit:
 281         if ( rc == LDAP_SUCCESS ) {
 282                 attrs_free( save_attrs );
 283         } else {
 284                 for ( ap = save_attrs; ap; ap = ap->a_next ) {
 285                         ap->a_flags = 0;
 286                 }
 287                 attrs_free( e->e_attrs );
 288                 e->e_attrs = save_attrs;
 289         }
 290
 291         return rc;
 292 }
 293
 294 int
 295 ldbm_back_modify(
 296     Operation   *op,
 297     SlapReply   *rs )
 298 {
 299         struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
 300         Entry           *matched;
 301         Entry           *e;
 302         int             manageDSAit = get_manageDSAit( op );
 303         char textbuf[SLAP_TEXT_BUFLEN];
 304         size_t textlen = sizeof textbuf;
 305
 306 #ifdef NEW_LOGGING
 307         LDAP_LOG( BACK_LDBM, ENTRY, "ldbm_back_modify: enter\n", 0, 0, 0);
 308 #else
 309         Debug(LDAP_DEBUG_ARGS, "ldbm_back_modify:\n", 0, 0, 0);
 310 #endif
 311
 312         /* grab giant lock for writing */
 313         ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
 314
 315         /* acquire and lock entry */
 316         e = dn2entry_w( op->o_bd, &op->o_req_ndn, &matched );
 317
 318         /* FIXME: dn2entry() should return non-glue entry */
 319         if (( e == NULL ) || ( !manageDSAit && e && is_entry_glue( e ))) {
 320                 if ( matched != NULL ) {
 321                         rs->sr_matched = ch_strdup( matched->e_dn );
 322                         rs->sr_ref = is_entry_referral( matched )
 323                                 ? get_entry_referrals( op, matched )
 324                                 : NULL;
 325                         cache_return_entry_r( &li->li_cache, matched );
 326                 } else {
 327                         BerVarray deref = NULL;
 328                         if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 329                                 syncinfo_t *si;
 330                                 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
 331                                         struct berval tmpbv;
 332                                         ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
 333                                         ber_bvarray_add( &deref, &tmpbv );
 334                                 }
 335                         } else {
 336                                 deref = default_referral;
 337                         }
 338                         rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
 339                                                         LDAP_SCOPE_DEFAULT );
 340                 }
 341
 342                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 343                 rs->sr_err = LDAP_REFERRAL;
 344                 send_ldap_result( op, rs );
 345
 346                 if ( rs->sr_ref ) ber_bvarray_free( rs->sr_ref );
 347                 free( (char *)rs->sr_matched );
 348
 349                 rs->sr_ref = NULL;
 350                 rs->sr_matched = NULL;
 351                 return rs->sr_err;
 352         }
 353
 354         if ( !manageDSAit && is_entry_referral( e ) )
 355         {
 356                 /* parent is a referral, don't allow add */
 357                 /* parent is an alias, don't allow add */
 358                 rs->sr_ref = get_entry_referrals( op, e );
 359
 360 #ifdef NEW_LOGGING
 361                 LDAP_LOG( BACK_LDBM, INFO,
 362                            "ldbm_back_modify: entry (%s) is referral\n", op->o_req_ndn.bv_val, 0, 0 );
 363 #else
 364                 Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
 365                     0, 0 );
 366 #endif
 367
 368                 rs->sr_err = LDAP_REFERRAL;
 369                 rs->sr_matched = e->e_name.bv_val;
 370                 send_ldap_result( op, rs );
 371
 372                 if ( rs->sr_ref ) ber_bvarray_free( rs->sr_ref );
 373                 rs->sr_ref = NULL;
 374                 rs->sr_matched = NULL;
 375                 goto error_return;
 376         }
 377
 378         /* Modify the entry */
 379         rs->sr_err = ldbm_modify_internal( op, op->oq_modify.rs_modlist, e,
 380                 &rs->sr_text, textbuf, textlen );
 381
 382         if( rs->sr_err != LDAP_SUCCESS ) {
 383                 if( rs->sr_err != SLAPD_ABANDON ) {
 384                         send_ldap_result( op, rs );
 385                 }
 386
 387                 goto error_return;
 388         }
 389
 390         /* change the entry itself */
 391         if ( id2entry_add( op->o_bd, e ) != 0 ) {
 392                 send_ldap_error( op, rs, LDAP_OTHER,
 393                         "id2entry failure" );
 394                 rs->sr_err = LDAP_OTHER;
 395                 goto error_return;
 396         }
 397
 398         rs->sr_text = NULL;
 399         send_ldap_error( op, rs, LDAP_SUCCESS,
 400                 NULL );
 401
 402         cache_return_entry_w( &li->li_cache, e );
 403         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 404
 405         return LDAP_SUCCESS;
 406
 407 error_return:;
 408         cache_return_entry_w( &li->li_cache, e );
 409         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 410         rs->sr_text = NULL;
 411         return rs->sr_err;
 412 }