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

   1 /* entry.c - ldbm backend entry_release 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/socket.h>
  13 #include <ac/string.h>
  14
  15 #include "slap.h"
  16 #include "back-ldbm.h"
  17 #include "proto-back-ldbm.h"
  18
  19
  20 int
  21 ldbm_back_entry_release_rw(
  22         Operation *op,
  23         Entry   *e,
  24         int     rw
  25 )
  26 {
  27         struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
  28
  29         if ( slapMode == SLAP_SERVER_MODE ) {
  30                 /* free entry and reader or writer lock */
  31                 cache_return_entry_rw( &li->li_cache, e, rw );
  32                 /* only do_add calls here with a write lock.
  33                  * get_entry doesn't obtain the giant lock, because its
  34                  * caller has already obtained it.
  35                  */
  36                 if( rw ) {
  37                         ldap_pvt_thread_rdwr_wunlock( &li->li_giant_rwlock );
  38                 }
  39 #if 0
  40                 else {
  41                         ldap_pvt_thread_rdwr_runlock( &li->li_giant_rwlock );
  42                 }
  43 #endif
  44
  45         } else {
  46                 entry_free( e );
  47         }
  48
  49         return 0;
  50 }
  51
  52 /* return LDAP_SUCCESS IFF we can retrieve the specified entry.
  53  */
  54 int ldbm_back_entry_get(
  55         Operation *op,
  56         struct berval *ndn,
  57         ObjectClass *oc,
  58         AttributeDescription *at,
  59         int rw,
  60         Entry **ent )
  61 {
  62         struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
  63         Entry *e;
  64         int     rc;
  65         const char *at_name = at->ad_cname.bv_val;
  66
  67 #ifdef NEW_LOGGING
  68         LDAP_LOG( BACK_BDB, ARGS,
  69                 "ldbm_back_entry_get: ndn: \"%s\"\n", ndn->bv_val, 0, 0 );
  70         LDAP_LOG( BACK_BDB, ARGS,
  71                 "ldbm_back_entry_get: oc: \"%s\", at: \"%s\"\n",
  72                 oc ? oc->soc_cname.bv_val : "(null)", at_name, 0);
  73 #else
  74         Debug( LDAP_DEBUG_ARGS,
  75                 "=> ldbm_back_entry_get: ndn: \"%s\"\n", ndn->bv_val, 0, 0 );
  76         Debug( LDAP_DEBUG_ARGS,
  77                 "=> ldbm_back_entry_get: oc: \"%s\", at: \"%s\"\n",
  78                 oc ? oc->soc_cname.bv_val : "(null)", at_name, 0);
  79 #endif
  80
  81         /* don't grab the giant lock - our caller has already gotten it. */
  82
  83         /* can we find entry */
  84         e = dn2entry_rw( op->o_bd, ndn, NULL, rw );
  85         if (e == NULL) {
  86 #ifdef NEW_LOGGING
  87                 LDAP_LOG( BACK_BDB, INFO,
  88                         "ldbm_back_entry_get: cannot find entry (%s)\n",
  89                         ndn->bv_val, 0, 0 );
  90 #else
  91                 Debug( LDAP_DEBUG_ACL,
  92                         "=> ldbm_back_entry_get: cannot find entry: \"%s\"\n",
  93                                 ndn->bv_val, 0, 0 );
  94 #endif
  95                 return LDAP_NO_SUCH_OBJECT;
  96         }
  97
  98 #ifdef NEW_LOGGING
  99         LDAP_LOG( BACK_BDB, DETAIL1, "ldbm_back_entry_get: found entry (%s)\n",
 100                 ndn->bv_val, 0, 0 );
 101 #else
 102         Debug( LDAP_DEBUG_ACL,
 103                 "=> ldbm_back_entry_get: found entry: \"%s\"\n",
 104                 ndn->bv_val, 0, 0 );
 105 #endif
 106
 107 #ifdef BDB_ALIASES
 108         /* find attribute values */
 109         if( is_entry_alias( e ) ) {
 110 #ifdef NEW_LOGGING
 111                 LDAP_LOG( BACK_BDB, INFO,
 112                         "ldbm_back_entry_get: entry (%s) is an alias\n", e->e_name.bv_val, 0, 0 );
 113 #else
 114                 Debug( LDAP_DEBUG_ACL,
 115                         "<= ldbm_back_entry_get: entry is an alias\n", 0, 0, 0 );
 116 #endif
 117                 rc = LDAP_ALIAS_PROBLEM;
 118                 goto return_results;
 119         }
 120 #endif
 121
 122         if( is_entry_referral( e ) ) {
 123 #ifdef NEW_LOGGING
 124                 LDAP_LOG( BACK_BDB, INFO,
 125                         "ldbm_back_entry_get: entry (%s) is a referral.\n", e->e_name.bv_val, 0, 0);
 126 #else
 127                 Debug( LDAP_DEBUG_ACL,
 128                         "<= ldbm_back_entry_get: entry is a referral\n", 0, 0, 0 );
 129 #endif
 130                 rc = LDAP_REFERRAL;
 131                 goto return_results;
 132         }
 133
 134         if ( oc && !is_entry_objectclass( e, oc, 0 )) {
 135 #ifdef NEW_LOGGING
 136                 LDAP_LOG( BACK_BDB, INFO,
 137                         "ldbm_back_entry_get: failed to find objectClass.\n", 0, 0, 0 );
 138 #else
 139                 Debug( LDAP_DEBUG_ACL,
 140                         "<= ldbm_back_entry_get: failed to find objectClass\n",
 141                         0, 0, 0 );
 142 #endif
 143                 rc = LDAP_NO_SUCH_ATTRIBUTE;
 144                 goto return_results;
 145         }
 146
 147         rc = LDAP_SUCCESS;
 148
 149 return_results:
 150         if( rc != LDAP_SUCCESS ) {
 151                 /* free entry */
 152                 cache_return_entry_rw(&li->li_cache, e, rw);
 153         } else {
 154                 *ent = e;
 155         }
 156
 157 #ifdef NEW_LOGGING
 158         LDAP_LOG( BACK_BDB, ENTRY, "ldbm_back_entry_get: rc=%d\n", rc, 0, 0 );
 159 #else
 160         Debug( LDAP_DEBUG_TRACE,
 161                 "ldbm_back_entry_get: rc=%d\n",
 162                 rc, 0, 0 );
 163 #endif
 164         return(rc);
 165 }