git.sur5r.net Git - openldap/blob - servers/slapd/back-sql/operational.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2007 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2002 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Dmitry Kovalev for inclusion
  19  * by OpenLDAP Software.  Additional significant contributors include
  20  * Pierangelo Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27
  28 #include "slap.h"
  29 #include "proto-sql.h"
  30 #include "lutil.h"
  31
  32 /*
  33  * sets the supported operational attributes (if required)
  34  */
  35
  36 Attribute *
  37 backsql_operational_entryUUID( backsql_info *bi, backsql_entryID *id )
  38 {
  39         int                     rc;
  40         struct berval           val, nval;
  41         AttributeDescription    *desc = slap_schema.si_ad_entryUUID;
  42         Attribute               *a;
  43
  44         backsql_entryUUID( bi, id, &val, NULL );
  45
  46         rc = (*desc->ad_type->sat_equality->smr_normalize)(
  47                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
  48                         desc->ad_type->sat_syntax,
  49                         desc->ad_type->sat_equality,
  50                         &val, &nval, NULL );
  51         if ( rc != LDAP_SUCCESS ) {
  52                 ber_memfree( val.bv_val );
  53                 return NULL;
  54         }
  55
  56         a = attr_alloc( desc );
  57
  58         a->a_vals = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
  59         a->a_vals[ 0 ] = val;
  60         BER_BVZERO( &a->a_vals[ 1 ] );
  61
  62         a->a_nvals = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
  63         a->a_nvals[ 0 ] = nval;
  64         BER_BVZERO( &a->a_nvals[ 1 ] );
  65
  66         return a;
  67 }
  68
  69 Attribute *
  70 backsql_operational_entryCSN( Operation *op )
  71 {
  72         char            csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
  73         struct berval   entryCSN;
  74         Attribute       *a;
  75
  76         a = attr_alloc( slap_schema.si_ad_entryCSN );
  77         a->a_vals = ch_malloc( 2 * sizeof( struct berval ) );
  78         BER_BVZERO( &a->a_vals[ 1 ] );
  79
  80 #ifdef BACKSQL_SYNCPROV
  81         if ( op->o_sync && op->o_tag == LDAP_REQ_SEARCH && op->o_private != NULL ) {
  82                 assert( op->o_private != NULL );
  83
  84                 entryCSN = *((struct berval *)op->o_private);
  85
  86         } else
  87 #endif /* BACKSQL_SYNCPROV */
  88         {
  89                 entryCSN.bv_val = csnbuf;
  90                 entryCSN.bv_len = sizeof( csnbuf );
  91                 slap_get_csn( op, &entryCSN, 0 );
  92         }
  93
  94         ber_dupbv( &a->a_vals[ 0 ], &entryCSN );
  95
  96         a->a_nvals = a->a_vals;
  97
  98         return a;
  99 }
 100
 101 int
 102 backsql_operational(
 103         Operation       *op,
 104         SlapReply       *rs )
 105 {
 106
 107         backsql_info    *bi = (backsql_info*)op->o_bd->be_private;
 108         SQLHDBC         dbh = SQL_NULL_HDBC;
 109         int             rc = 0;
 110         Attribute       **ap;
 111         enum {
 112                 BACKSQL_OP_HASSUBORDINATES = 0,
 113                 BACKSQL_OP_ENTRYUUID,
 114                 BACKSQL_OP_ENTRYCSN,
 115
 116                 BACKSQL_OP_LAST
 117         };
 118         int             get_conn = BACKSQL_OP_LAST,
 119                         got[ BACKSQL_OP_LAST ] = { 0 };
 120
 121         Debug( LDAP_DEBUG_TRACE, "==>backsql_operational(): entry \"%s\"\n",
 122                         rs->sr_entry->e_nname.bv_val, 0, 0 );
 123
 124         for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next ) {
 125                 if ( (*ap)->a_desc == slap_schema.si_ad_hasSubordinates ) {
 126                         get_conn--;
 127                         got[ BACKSQL_OP_HASSUBORDINATES ] = 1;
 128
 129                 } else if ( (*ap)->a_desc == slap_schema.si_ad_entryUUID ) {
 130                         get_conn--;
 131                         got[ BACKSQL_OP_ENTRYUUID ] = 1;
 132
 133                 } else if ( (*ap)->a_desc == slap_schema.si_ad_entryCSN ) {
 134                         get_conn--;
 135                         got[ BACKSQL_OP_ENTRYCSN ] = 1;
 136                 }
 137         }
 138
 139         if ( !get_conn ) {
 140                 return 0;
 141         }
 142
 143         rc = backsql_get_db_conn( op, &dbh );
 144         if ( rc != LDAP_SUCCESS ) {
 145                 Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 146                         "could not get connection handle - exiting\n",
 147                         0, 0, 0 );
 148                 return 1;
 149         }
 150
 151         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_hasSubordinates, rs->sr_attrs ) )
 152                         && !got[ BACKSQL_OP_HASSUBORDINATES ]
 153                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_hasSubordinates ) == NULL )
 154         {
 155                 rc = backsql_has_children( op, dbh, &rs->sr_entry->e_nname );
 156
 157                 switch( rc ) {
 158                 case LDAP_COMPARE_TRUE:
 159                 case LDAP_COMPARE_FALSE:
 160                         *ap = slap_operational_hasSubordinate( rc == LDAP_COMPARE_TRUE );
 161                         assert( *ap != NULL );
 162                         ap = &(*ap)->a_next;
 163                         rc = 0;
 164                         break;
 165
 166                 default:
 167                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 168                                 "has_children failed( %d)\n", rc, 0, 0 );
 169                         return 1;
 170                 }
 171         }
 172
 173         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryUUID, rs->sr_attrs ) )
 174                         && !got[ BACKSQL_OP_ENTRYUUID ]
 175                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID ) == NULL )
 176         {
 177                 backsql_srch_info       bsi = { 0 };
 178
 179                 rc = backsql_init_search( &bsi, &rs->sr_entry->e_nname,
 180                                 LDAP_SCOPE_BASE,
 181                                 (time_t)(-1), NULL, dbh, op, rs, NULL,
 182                                 BACKSQL_ISF_GET_ID );
 183                 if ( rc != LDAP_SUCCESS ) {
 184                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 185                                 "could not retrieve entry ID - no such entry\n",
 186                                 0, 0, 0 );
 187                         return 1;
 188                 }
 189
 190                 *ap = backsql_operational_entryUUID( bi, &bsi.bsi_base_id );
 191
 192                 (void)backsql_free_entryID( op, &bsi.bsi_base_id, 0 );
 193
 194                 if ( bsi.bsi_attrs != NULL ) {
 195                         op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
 196                 }
 197
 198                 if ( *ap == NULL ) {
 199                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 200                                 "could not retrieve entryUUID\n",
 201                                 0, 0, 0 );
 202                         return 1;
 203                 }
 204
 205                 ap = &(*ap)->a_next;
 206         }
 207
 208         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryCSN, rs->sr_attrs ) )
 209                         && !got[ BACKSQL_OP_ENTRYCSN ]
 210                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN ) == NULL )
 211         {
 212                 *ap = backsql_operational_entryCSN( op );
 213                 if ( *ap == NULL ) {
 214                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 215                                 "could not retrieve entryCSN\n",
 216                                 0, 0, 0 );
 217                         return 1;
 218                 }
 219
 220                 ap = &(*ap)->a_next;
 221         }
 222
 223         Debug( LDAP_DEBUG_TRACE, "<==backsql_operational(%d)\n", rc, 0, 0);
 224
 225         return rc;
 226 }
 227