]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-ldbm/modify.c
error message from be_entry_put tool backend function
[openldap] / servers / slapd / back-ldbm / modify.c
index 15c2c72896f84de692d1cebc6c4c921e83766cc7..6e263639d6ff0b0f7842b83840de6286890db0d2 100644 (file)
@@ -1,4 +1,9 @@
 /* modify.c - ldbm backend modify routine */
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 
 #include "portable.h"
 
 #include "back-ldbm.h"
 #include "proto-back-ldbm.h"
 
-static void    add_lastmods(Operation *op, LDAPModList **ml);
-
-
-static void
-add_lastmods( Operation *op, LDAPModList **modlist )
-{
-       char            buf[22];
-       struct berval   bv;
-       struct berval   *bvals[2];
-       LDAPModList             **m;
-       LDAPModList             *tmp;
-       struct tm       *ltm;
-       time_t          currenttime;
-
-       Debug( LDAP_DEBUG_TRACE, "add_lastmods\n", 0, 0, 0 );
-
-       bvals[0] = &bv;
-       bvals[1] = NULL;
-
-       /* remove any attempts by the user to modify these attrs */
-       for ( m = modlist; *m != NULL; m = &(*m)->ml_next ) {
-            if ( oc_check_operational( (*m)->ml_type ) ) {
-                Debug( LDAP_DEBUG_TRACE,
-                                       "add_lastmods: found operational attr: %s\n",
-                                       (*m)->ml_type, 0, 0 );
-                tmp = *m;
-                *m = (*m)->ml_next;
-                free( tmp->ml_type );
-                if ( tmp->ml_bvalues != NULL ) {
-                    ber_bvecfree( tmp->ml_bvalues );
-                }
-                free( tmp );
-                if (!*m)
-                    break;
-            }
-        }
-
-       if ( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
-               bv.bv_val = "NULLDN";
-               bv.bv_len = strlen( bv.bv_val );
-       } else {
-               bv.bv_val = op->o_dn;
-               bv.bv_len = strlen( bv.bv_val );
-       }
-       tmp = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
-       tmp->ml_type = ch_strdup( "modifiersname" );
-       tmp->ml_op = LDAP_MOD_REPLACE;
-       tmp->ml_bvalues = (struct berval **) ch_calloc(2, sizeof(struct berval *));
-       tmp->ml_bvalues[0] = ber_bvdup( &bv );
-       tmp->ml_next = *modlist;
-       *modlist = tmp;
-
-       currenttime = slap_get_time();
-       ldap_pvt_thread_mutex_lock( &gmtime_mutex );
-#ifndef LDAP_LOCALTIME
-       ltm = gmtime( &currenttime );
-       strftime( buf, sizeof(buf), "%Y%m%d%H%M%SZ", ltm );
-#else
-       ltm = localtime( &currenttime );
-       strftime( buf, sizeof(buf), "%y%m%d%H%M%SZ", ltm );
-#endif
-       ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
-
-       bv.bv_val = buf;
-       bv.bv_len = strlen( bv.bv_val );
-       tmp = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
-       tmp->ml_type = ch_strdup( "modifytimestamp" );
-       tmp->ml_op = LDAP_MOD_REPLACE;
-       tmp->ml_bvalues = (struct berval **) ch_calloc(2, sizeof(struct berval *));
-       tmp->ml_bvalues[0] = ber_bvdup( &bv );
-       tmp->ml_next = *modlist;
-       *modlist = tmp;
-
-}
+static int add_values LDAP_P(( Entry *e, Modification *mod, char *dn ));
+static int delete_values LDAP_P(( Entry *e, Modification *mod, char *dn ));
+static int replace_values LDAP_P(( Entry *e, Modification *mod, char *dn ));
 
 /* We need this function because of LDAP modrdn. If we do not 
  * add this there would be a bunch of code replication here 
@@ -97,119 +31,213 @@ int ldbm_modify_internal(
     Backend    *be,
     Connection *conn,
     Operation  *op,
-    char       *dn,
-    LDAPModList        *modlist,
-    Entry      *e 
+    const char *dn,
+    Modifications      *modlist,
+    Entry      *e,
+       const char **text,
+       char *textbuf,
+       size_t textlen
 )
 {
-       int err;
-       LDAPMod         *mod;
-       LDAPModList     *ml;
-       Attribute       *a;
-
-       if ( ((be->be_lastmod == ON)
-             || ((be->be_lastmod == UNDEFINED)&&(global_lastmod == ON)))
-            && (be->be_update_ndn == NULL)) {
+       int rc, err;
+       Modification    *mod;
+       Modifications   *ml;
+       Attribute       *save_attrs;
+
+#ifdef NEW_LOGGING
+       LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
+               "ldbm_modify_internal: %s\n", dn ));
+#else
+       Debug(LDAP_DEBUG_TRACE, "ldbm_modify_internal: %s\n", dn, 0, 0);
+#endif
 
-               /* XXX: It may be wrong, it changes mod time even if 
-                * mod fails!
-                */
-               add_lastmods( op, &modlist );
 
+       if ( !acl_check_modlist( be, conn, op, e, modlist )) {
+               return LDAP_INSUFFICIENT_ACCESS;
        }
 
+       save_attrs = e->e_attrs;
+       e->e_attrs = attrs_dup( e->e_attrs );
 
-       if ( (err = acl_check_modlist( be, conn, op, e, modlist ))
-            != LDAP_SUCCESS ) {
-               send_ldap_result( conn, op, err, NULL, NULL );
-               return -1;
-       }
+       for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
+               mod = &ml->sml_mod;
 
-       for ( ml = modlist; ml != NULL; ml = ml->ml_next ) {
+               switch ( mod->sm_op ) {
+               case LDAP_MOD_ADD:
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
+                               "ldbm_modify_internal: add\n" ));
+#else
+                       Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: add\n", 0, 0, 0);
+#endif
 
-               mod = &ml->ml_mod;
+                       err = add_values( e, mod, op->o_ndn.bv_val );
 
-               switch ( mod->mod_op & ~LDAP_MOD_BVALUES ) {
-               case LDAP_MOD_ADD:
-                       err = add_values( e, mod, op->o_ndn );
+                       if( err != LDAP_SUCCESS ) {
+                               *text = "modify: add values failed";
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                                       "ldbm_modify_internal: failed %d (%s)\n",
+                                       err, *text ));
+#else
+                               Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
+                                       err, *text, 0);
+#endif
+                       }
                        break;
 
                case LDAP_MOD_DELETE:
-                       err = delete_values( e, mod, op->o_ndn );
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
+                               "ldbm_modify_internal: delete\n" ));
+#else
+                       Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: delete\n", 0, 0, 0);
+#endif
+
+                       err = delete_values( e, mod, op->o_ndn.bv_val );
+                       assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
+                       if( err != LDAP_SUCCESS ) {
+                               *text = "modify: delete values failed";
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                                       "ldbm_modify_internal: failed %d (%s)\n", err, *text ));
+#else
+                               Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
+                                       err, *text, 0);
+#endif
+                       }
                        break;
 
                case LDAP_MOD_REPLACE:
-                       /* Need to remove all values from indexes before they
-                        * are lost.
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
+                               "ldbm_modify_internal:  replace\n" ));
+#else
+                       Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: replace\n", 0, 0, 0);
+#endif
+
+                       err = replace_values( e, mod, op->o_ndn.bv_val );
+                       assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
+                       if( err != LDAP_SUCCESS ) {
+                               *text = "modify: replace values failed";
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                                       "ldbm_modify_internal: failed %d (%s)\n", err, *text ));
+#else
+                               Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
+                                       err, *text, 0);
+#endif
+
+                       }
+                       break;
+
+               case SLAP_MOD_SOFTADD:
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
+                               "ldbm_modify_internal: softadd\n" ));
+#else
+                       Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: softadd\n", 0, 0, 0);
+#endif
+
+                       /* Avoid problems in index_add_mods()
+                        * We need to add index if necessary.
                         */
-                       if( e->e_attrs
-                           && ((a = attr_find( e->e_attrs, mod->mod_type ))
-                          != NULL) ) {
-
-                           (void) index_change_values( be,
-                                                       mod->mod_type,
-                                                       a->a_vals,
-                                                       e->e_id,
-                                                       __INDEX_DELETE_OP);
+                       mod->sm_op = LDAP_MOD_ADD;
+                       err = add_values( e, mod, op->o_ndn.bv_val );
+
+                       if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
+                               err = LDAP_SUCCESS;
                        }
 
-                       err = replace_values( e, mod, op->o_ndn );
+                       if( err != LDAP_SUCCESS ) {
+                               *text = "modify: (soft)add values failed";
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                                          "ldbm_modify_internal: failed %d (%s)\n", err, *text ));
+#else
+                               Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
+                                       err, *text, 0);
+#endif
+
+                       }
                        break;
 
-               case LDAP_MOD_SOFTADD:
-                       /* Avoid problems in index_add_mods()
-                        * We need to add index if necessary.
-                        */
-                       mod->mod_op = LDAP_MOD_ADD;
-                       if ( (err = add_values( e, mod, op->o_ndn ))
-                               ==  LDAP_TYPE_OR_VALUE_EXISTS ) {
-                               err = LDAP_SUCCESS;
-                               mod->mod_op = LDAP_MOD_SOFTADD;
-                       }
-                       break;
+               default:
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
+                               "ldbm_modify_internal: invalid op %d\n", mod->sm_op ));
+#else
+                       Debug(LDAP_DEBUG_ANY, "ldbm_modify_internal: invalid op %d\n",
+                               mod->sm_op, 0, 0);
+#endif
+
+                       err = LDAP_OTHER;
+                       *text = "Invalid modify operation";
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                               "ldbm_modify_internal: %d (%s)\n", err, *text ));
+#else
+                       Debug(LDAP_DEBUG_ARGS, "ldbm_modify_internal: %d %s\n",
+                               err, *text, 0);
+#endif
+
                }
 
                if ( err != LDAP_SUCCESS ) {
+                       attrs_free( e->e_attrs );
+                       e->e_attrs = save_attrs;
                        /* unlock entry, delete from cache */
-                       send_ldap_result( conn, op, err, NULL, NULL );
-                       return -1;
+                       return err; 
                }
        }
 
-       /* check that the entry still obeys the schema */
-       if ( global_schemacheck && oc_schema_check( e ) != 0 ) {
-               Debug( LDAP_DEBUG_ANY, "entry failed schema check\n", 0, 0, 0 );
-               send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION, NULL, NULL );
-               return -1;
-       }
-
        /* check for abandon */
        ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
        if ( op->o_abandon ) {
+               attrs_free( e->e_attrs );
+               e->e_attrs = save_attrs;
                ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
-               return -1;
+               return SLAPD_ABANDON;
        }
        ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
 
-       /* modify indexes */
-       if ( index_add_mods( be, modlist, e->e_id ) != 0 ) {
-               send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
-               return -1;
+       /* check that the entry still obeys the schema */
+       rc = entry_schema_check( be, e, save_attrs, text, textbuf, textlen );
+       if ( rc != LDAP_SUCCESS ) {
+               attrs_free( e->e_attrs );
+               e->e_attrs = save_attrs;
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
+                       "ldbm_modify_internal: entry failed schema check: %s\n",
+                       *text ));
+#else
+               Debug( LDAP_DEBUG_ANY, "entry failed schema check: %s\n",
+                       *text, 0, 0 );
+#endif
+
+               return rc;
        }
 
        /* check for abandon */
        ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
        if ( op->o_abandon ) {
+               attrs_free( e->e_attrs );
+               e->e_attrs = save_attrs;
                ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
-               return -1;
+               return SLAPD_ABANDON;
        }
        ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
 
-       return 0;
+       /* delete indices for old attributes */
+       index_entry_del( be, e, save_attrs);
+
+       /* add indices for new attributes */
+       index_entry_add( be, e, e->e_attrs);
 
-}/* int ldbm_modify_internal() */
+       attrs_free( save_attrs );
+
+       return LDAP_SUCCESS;
+}
 
 
 int
@@ -217,40 +245,99 @@ ldbm_back_modify(
     Backend    *be,
     Connection *conn,
     Operation  *op,
-    char       *dn,
-    LDAPModList        *modlist
+    struct berval      *dn,
+    struct berval      *ndn,
+    Modifications      *modlist
 )
 {
+       int rc;
        struct ldbminfo *li = (struct ldbminfo *) be->be_private;
-       char            *matched;
+       Entry           *matched;
        Entry           *e;
-
+       int             manageDSAit = get_manageDSAit( op );
+       const char *text = NULL;
+       char textbuf[SLAP_TEXT_BUFLEN];
+       size_t textlen = sizeof textbuf;
+
+#ifdef NEW_LOGGING
+       LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
+               "ldbm_back_modify: enter\n" ));
+#else
        Debug(LDAP_DEBUG_ARGS, "ldbm_back_modify:\n", 0, 0, 0);
+#endif
+
 
        /* acquire and lock entry */
-       if ( (e = dn2entry_w( be, dn, &matched )) == NULL ) {
-               send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT, matched,
-                   NULL );
+       if ( (e = dn2entry_w( be, ndn, &matched )) == NULL ) {
+               char* matched_dn = NULL;
+               BVarray refs;
+
                if ( matched != NULL ) {
-                       free( matched );
+                       matched_dn = ch_strdup( matched->e_dn );
+                       refs = is_entry_referral( matched )
+                               ? get_entry_referrals( be, conn, op, matched )
+                               : NULL;
+                       cache_return_entry_r( &li->li_cache, matched );
+               } else {
+                       refs = referral_rewrite( default_referral,
+                               NULL, dn, LDAP_SCOPE_DEFAULT );
                }
+
+               send_ldap_result( conn, op, LDAP_REFERRAL,
+                       matched_dn, NULL, refs, NULL );
+
+               if ( refs ) bvarray_free( refs );
+               free( matched_dn );
+
                return( -1 );
        }
 
-       /* Modify the entry */
-       if ( ldbm_modify_internal( be, conn, op, dn, modlist, e ) != 0 ) {
+    if ( !manageDSAit && is_entry_referral( e ) ) {
+               /* parent is a referral, don't allow add */
+               /* parent is an alias, don't allow add */
+               BVarray refs = get_entry_referrals( be,
+                       conn, op, e );
+
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                          "ldbm_back_modify: entry (%s) is referral\n", ndn->bv_val ));
+#else
+               Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
+                   0, 0 );
+#endif
+
+
+               send_ldap_result( conn, op, LDAP_REFERRAL,
+                   e->e_dn, NULL, refs, NULL );
+
+               if ( refs ) bvarray_free( refs );
 
                goto error_return;
+       }
+       
+       /* Modify the entry */
+       rc = ldbm_modify_internal( be, conn, op, ndn->bv_val, modlist, e,
+               &text, textbuf, textlen );
 
+       if( rc != LDAP_SUCCESS ) {
+               if( rc != SLAPD_ABANDON ) {
+                       send_ldap_result( conn, op, rc,
+                               NULL, text, NULL, NULL );
+               }
+
+               goto error_return;
        }
 
        /* change the entry itself */
        if ( id2entry_add( be, e ) != 0 ) {
-               send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
+               send_ldap_result( conn, op, LDAP_OTHER,
+                       NULL, "id2entry failure", NULL, NULL );
                goto error_return;
        }
 
-       send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
+       send_ldap_result( conn, op, LDAP_SUCCESS,
+               NULL, NULL, NULL, NULL );
+
        cache_return_entry_w( &li->li_cache, e );
        return( 0 );
 
@@ -259,107 +346,207 @@ error_return:;
        return( -1 );
 }
 
-int
+static int
 add_values(
     Entry      *e,
-    LDAPMod    *mod,
+    Modification       *mod,
     char       *dn
 )
 {
        int             i;
        Attribute       *a;
 
+       /* char *desc = mod->sm_desc->ad_cname.bv_val; */
+       MatchingRule *mr = mod->sm_desc->ad_type->sat_equality;
+
+       a = attr_find( e->e_attrs, mod->sm_desc );
+
        /* check if the values we're adding already exist */
-       if ( (a = attr_find( e->e_attrs, mod->mod_type )) != NULL ) {
-               for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
-                       if ( value_find( a->a_vals, mod->mod_bvalues[i],
-                           a->a_syntax, 3 ) == 0 ) {
-                               return( LDAP_TYPE_OR_VALUE_EXISTS );
+       if ( a != NULL ) {
+               if( mr == NULL || !mr->smr_match ) {
+                       /* do not allow add of additional attribute
+                               if no equality rule exists */
+                       return LDAP_INAPPROPRIATE_MATCHING;
+               }
+
+               for ( i = 0; mod->sm_bvalues[i].bv_val != NULL; i++ ) {
+                       int rc;
+                       int j;
+                       const char *text = NULL;
+                       struct berval asserted;
+
+                       rc = value_normalize( mod->sm_desc,
+                               SLAP_MR_EQUALITY,
+                               &mod->sm_bvalues[i],
+                               &asserted,
+                               &text );
+
+                       if( rc != LDAP_SUCCESS ) return rc;
+
+                       for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) {
+                               int match;
+                               int rc = value_match( &match, mod->sm_desc, mr,
+                                       SLAP_MR_VALUE_SYNTAX_MATCH,
+                                       &a->a_vals[j], &asserted, &text );
+
+                               if( rc == LDAP_SUCCESS && match == 0 ) {
+                                       free( asserted.bv_val );
+                                       return LDAP_TYPE_OR_VALUE_EXISTS;
+                               }
                        }
+
+                       free( asserted.bv_val );
                }
        }
 
        /* no - add them */
-       if( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {
-               return( LDAP_CONSTRAINT_VIOLATION );
+       if( attr_merge( e, mod->sm_desc, mod->sm_bvalues ) != 0 ) {
+               /* this should return result return of attr_merge */
+               return LDAP_OTHER;
        }
 
-       return( LDAP_SUCCESS );
+       return LDAP_SUCCESS;
 }
 
-int
+static int
 delete_values(
     Entry      *e,
-    LDAPMod    *mod,
+    Modification       *mod,
     char       *dn
 )
 {
        int             i, j, k, found;
        Attribute       *a;
+       char *desc = mod->sm_desc->ad_cname.bv_val;
+       MatchingRule *mr = mod->sm_desc->ad_type->sat_equality;
 
        /* delete the entire attribute */
-       if ( mod->mod_bvalues == NULL ) {
+       if ( mod->sm_bvalues == NULL ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
+                          "delete_values: removing entire attribute %s\n", desc ));
+#else
                Debug( LDAP_DEBUG_ARGS, "removing entire attribute %s\n",
-                   mod->mod_type, 0, 0 );
-               return( attr_delete( &e->e_attrs, mod->mod_type ) ?
+                   desc, 0, 0 );
+#endif
+
+               return( attr_delete( &e->e_attrs, mod->sm_desc ) ?
                    LDAP_NO_SUCH_ATTRIBUTE : LDAP_SUCCESS );
        }
 
+       if( mr == NULL || !mr->smr_match ) {
+               /* disallow specific attributes from being deleted if
+                       no equality rule */
+               return LDAP_INAPPROPRIATE_MATCHING;
+       }
+
        /* delete specific values - find the attribute first */
-       if ( (a = attr_find( e->e_attrs, mod->mod_type )) == NULL ) {
-               Debug( LDAP_DEBUG_ARGS, "could not find attribute %s\n",
-                   mod->mod_type, 0, 0 );
+       if ( (a = attr_find( e->e_attrs, mod->sm_desc )) == NULL ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
+                          "ldap_modify_delete: Could not find attribute %s\n", desc ));
+#else
+               Debug( LDAP_DEBUG_ARGS, "ldap_modify_delete: "
+                       "could not find attribute %s\n",
+                   desc, 0, 0 );
+#endif
+
                return( LDAP_NO_SUCH_ATTRIBUTE );
        }
 
        /* find each value to delete */
-       for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
+       for ( i = 0; mod->sm_bvalues[i].bv_val != NULL; i++ ) {
+               int rc;
+               const char *text = NULL;
+
+               struct berval asserted;
+
+               rc = value_normalize( mod->sm_desc,
+                       SLAP_MR_EQUALITY,
+                       &mod->sm_bvalues[i],
+                       &asserted,
+                       &text );
+
+               if( rc != LDAP_SUCCESS ) return rc;
+
                found = 0;
-               for ( j = 0; a->a_vals[j] != NULL; j++ ) {
-                       if ( value_cmp( mod->mod_bvalues[i], a->a_vals[j],
-                           a->a_syntax, 3 ) != 0 ) {
+               for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) {
+                       int match;
+                       int rc = value_match( &match, mod->sm_desc, mr,
+                               SLAP_MR_VALUE_SYNTAX_MATCH,
+                               &a->a_vals[j], &asserted, &text );
+
+                       if( rc == LDAP_SUCCESS && match != 0 ) {
                                continue;
                        }
+
+                       /* found a matching value */
                        found = 1;
 
-                       /* found a matching value - delete it */
-                       ber_bvfree( a->a_vals[j] );
-                       for ( k = j + 1; a->a_vals[k] != NULL; k++ ) {
+                       /* delete it */
+                       free( a->a_vals[j].bv_val );
+                       for ( k = j + 1; a->a_vals[k].bv_val != NULL; k++ ) {
                                a->a_vals[k - 1] = a->a_vals[k];
                        }
-                       a->a_vals[k - 1] = NULL;
+                       a->a_vals[k - 1].bv_val = NULL;
+
                        break;
                }
 
+               free( asserted.bv_val );
+
                /* looked through them all w/o finding it */
                if ( ! found ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG(( "backend", LDAP_LEVEL_ARGS,
+                                  "delete_values: could not find value for attr %s\n", desc )); 
+#else
                        Debug( LDAP_DEBUG_ARGS,
-                           "could not find value for attr %s\n",
-                           mod->mod_type, 0, 0 );
-                       return( LDAP_NO_SUCH_ATTRIBUTE );
+                           "ldbm_modify_delete: could not find value for attr %s\n",
+                           desc, 0, 0 );
+#endif
+
+                       return LDAP_NO_SUCH_ATTRIBUTE;
+               }
+       }
+
+       /* if no values remain, delete the entire attribute */
+       if ( a->a_vals[0].bv_val == NULL ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
+                          "delete_values: removing entire attribute %s\n", desc ));
+#else
+               Debug( LDAP_DEBUG_ARGS,
+                       "removing entire attribute %s\n",
+                       desc, 0, 0 );
+#endif
+
+               if ( attr_delete( &e->e_attrs, mod->sm_desc ) ) {
+                       return LDAP_NO_SUCH_ATTRIBUTE;
                }
        }
 
-       return( LDAP_SUCCESS );
+       return LDAP_SUCCESS;
 }
 
-int
+static int
 replace_values(
     Entry      *e,
-    LDAPMod    *mod,
+    Modification       *mod,
     char       *dn
 )
 {
+       int rc = attr_delete( &e->e_attrs, mod->sm_desc );
 
-       /* XXX: BEFORE YOU GET RID OF PREVIOUS VALUES REMOVE FROM INDEX
-        * FILES
-        */
-
-       (void) attr_delete( &e->e_attrs, mod->mod_type );
+       if( rc != LDAP_SUCCESS && rc != LDAP_NO_SUCH_ATTRIBUTE ) {
+               return rc;
+       }
 
-       if ( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {
-               return( LDAP_CONSTRAINT_VIOLATION );
+       if ( mod->sm_bvalues != NULL &&
+               attr_merge( e, mod->sm_desc, mod->sm_bvalues ) != 0 )
+       {
+               return LDAP_OTHER;
        }
 
-       return( LDAP_SUCCESS );
+       return LDAP_SUCCESS;
 }