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

   1 /* delete.c - ldbm backend delete routine */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 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
  15 #include "slap.h"
  16 #include "back-ldbm.h"
  17 #include "proto-back-ldbm.h"
  18
  19 int
  20 ldbm_back_delete(
  21     Backend     *be,
  22     Connection  *conn,
  23     Operation   *op,
  24     const char  *dn,
  25     const char  *ndn
  26 )
  27 {
  28         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
  29         Entry   *matched;
  30         char    *pdn = NULL;
  31         Entry   *e, *p = NULL;
  32         int rootlock = 0;
  33         int     rc = -1;
  34         int             manageDSAit = get_manageDSAit( op );
  35         AttributeDescription *children = slap_schema.si_ad_children;
  36
  37 #ifdef NEW_LOGGING
  38         LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
  39                    "ldbm_back_delete: %s\n", dn ));
  40 #else
  41         Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_delete: %s\n", dn, 0, 0);
  42 #endif
  43
  44
  45         /* get entry with writer lock */
  46         if ( (e = dn2entry_w( be, ndn, &matched )) == NULL ) {
  47                 char *matched_dn = NULL;
  48                 struct berval **refs = NULL;
  49
  50 #ifdef NEW_LOGGING
  51                 LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
  52                            "ldbm_back_delete: no such object %s\n", dn ));
  53 #else
  54                 Debug(LDAP_DEBUG_ARGS, "<=- ldbm_back_delete: no such object %s\n",
  55                         dn, 0, 0);
  56 #endif
  57
  58
  59                 if ( matched != NULL ) {
  60                         matched_dn = ch_strdup( matched->e_dn );
  61                         refs = is_entry_referral( matched )
  62                                 ? get_entry_referrals( be, conn, op, matched )
  63                                 : NULL;
  64                         cache_return_entry_r( &li->li_cache, matched );
  65                 } else {
  66                         refs = default_referral;
  67                 }
  68
  69                 send_ldap_result( conn, op, LDAP_REFERRAL,
  70                         matched_dn, NULL, refs, NULL );
  71
  72                 if ( matched != NULL ) {
  73                         ber_bvecfree( refs );
  74                         free( matched_dn );
  75                 }
  76
  77                 return( -1 );
  78         }
  79
  80     if ( !manageDSAit && is_entry_referral( e ) ) {
  81                 /* parent is a referral, don't allow add */
  82                 /* parent is an alias, don't allow add */
  83                 struct berval **refs = get_entry_referrals( be,
  84                         conn, op, e );
  85
  86 #ifdef NEW_LOGGING
  87                 LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
  88                            "ldbm_back_delete: entry (%s) is a referral.\n",
  89                            e->e_dn ));
  90 #else
  91                 Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
  92                     0, 0 );
  93 #endif
  94
  95
  96                 send_ldap_result( conn, op, LDAP_REFERRAL,
  97                     e->e_dn, NULL, refs, NULL );
  98
  99                 ber_bvecfree( refs );
 100
 101                 rc = 1;
 102                 goto return_results;
 103         }
 104
 105
 106         if ( has_children( be, e ) ) {
 107 #ifdef NEW_LOGGING
 108                 LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
 109                            "ldbm_back_delete: (%s) is a non-leaf node.\n", dn ));
 110 #else
 111                 Debug(LDAP_DEBUG_ARGS, "<=- ldbm_back_delete: non leaf %s\n",
 112                         dn, 0, 0);
 113 #endif
 114
 115                 send_ldap_result( conn, op, LDAP_NOT_ALLOWED_ON_NONLEAF,
 116                         NULL, "subtree delete not supported", NULL, NULL );
 117                 goto return_results;
 118         }
 119
 120         /* delete from parent's id2children entry */
 121         if( (pdn = dn_parent( be, e->e_ndn )) != NULL ) {
 122                 if( (p = dn2entry_w( be, pdn, NULL )) == NULL) {
 123 #ifdef NEW_LOGGING
 124                         LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
 125                                    "ldbm_back_delete: parent of (%s) does not exist\n", dn ));
 126 #else
 127                         Debug( LDAP_DEBUG_TRACE,
 128                                 "<=- ldbm_back_delete: parent does not exist\n",
 129                                 0, 0, 0);
 130 #endif
 131
 132                         send_ldap_result( conn, op, LDAP_OTHER,
 133                                 NULL, "could not locate parent of entry", NULL, NULL );
 134                         goto return_results;
 135                 }
 136
 137                 /* check parent for "children" acl */
 138                 if ( ! access_allowed( be, conn, op, p,
 139                         children, NULL, ACL_WRITE ) )
 140                 {
 141 #ifdef NEW_LOGGING
 142                         LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
 143                                    "ldbm_back_delete: no access to parent of (%s)\n", dn ));
 144 #else
 145                         Debug( LDAP_DEBUG_TRACE,
 146                                 "<=- ldbm_back_delete: no access to parent\n", 0,
 147                                 0, 0 );
 148 #endif
 149
 150                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
 151                                 NULL, NULL, NULL, NULL );
 152                         goto return_results;
 153                 }
 154
 155         } else {
 156                 /* no parent, must be root to delete */
 157                 if( ! be_isroot( be, op->o_ndn ) ) {
 158 #ifdef NEW_LOGGING
 159                         LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
 160                                    "ldbm_back_delete: (%s) has no parent & not a root.\n",
 161                                    dn ));
 162 #else
 163                         Debug( LDAP_DEBUG_TRACE,
 164                                 "<=- ldbm_back_delete: no parent & not root\n",
 165                                 0, 0, 0);
 166 #endif
 167
 168                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
 169                                 NULL, NULL, NULL, NULL );
 170                         goto return_results;
 171                 }
 172
 173                 ldap_pvt_thread_mutex_lock(&li->li_root_mutex);
 174                 rootlock = 1;
 175         }
 176
 177         /* delete from dn2id mapping */
 178         if ( dn2id_delete( be, e->e_ndn, e->e_id ) != 0 ) {
 179 #ifdef NEW_LOGGING
 180                 LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
 181                            "ldbm_back_delete: (%s) operations error\n", dn ));
 182 #else
 183                 Debug(LDAP_DEBUG_ARGS,
 184                         "<=- ldbm_back_delete: operations error %s\n",
 185                         dn, 0, 0);
 186 #endif
 187
 188                 send_ldap_result( conn, op, LDAP_OTHER,
 189                         NULL, "DN index delete failed", NULL, NULL );
 190                 goto return_results;
 191         }
 192
 193         /* delete from disk and cache */
 194         if ( id2entry_delete( be, e ) != 0 ) {
 195 #ifdef NEW_LOGGING
 196                 LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
 197                            "ldbm_back_delete: (%s) operations error\n",
 198                            dn ));
 199 #else
 200                 Debug(LDAP_DEBUG_ARGS,
 201                         "<=- ldbm_back_delete: operations error %s\n",
 202                         dn, 0, 0);
 203 #endif
 204
 205                 send_ldap_result( conn, op, LDAP_OTHER,
 206                         NULL, "entry delete failed", NULL, NULL );
 207                 goto return_results;
 208         }
 209
 210         /* delete attribute indices */
 211         (void) index_entry_del( be, e, e->e_attrs );
 212
 213         send_ldap_result( conn, op, LDAP_SUCCESS,
 214                 NULL, NULL, NULL, NULL );
 215         rc = 0;
 216
 217 return_results:;
 218         if ( pdn != NULL ) free(pdn);
 219
 220         if( p != NULL ) {
 221                 /* free parent and writer lock */
 222                 cache_return_entry_w( &li->li_cache, p );
 223         }
 224
 225         if ( rootlock ) {
 226                 /* release root lock */
 227                 ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
 228         }
 229
 230         /* free entry and writer lock */
 231         cache_return_entry_w( &li->li_cache, e );
 232
 233         return rc;
 234 }