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 1999-2006 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 = ch_malloc( sizeof( Attribute ) );
  57         a->a_desc = desc;
  58
  59         a->a_vals = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
  60         a->a_vals[ 0 ] = val;
  61         BER_BVZERO( &a->a_vals[ 1 ] );
  62
  63         a->a_nvals = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
  64         a->a_nvals[ 0 ] = nval;
  65         BER_BVZERO( &a->a_nvals[ 1 ] );
  66
  67         a->a_next = NULL;
  68         a->a_flags = 0;
  69
  70         return a;
  71 }
  72
  73 Attribute *
  74 backsql_operational_entryCSN( Operation *op )
  75 {
  76         char            csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
  77         struct berval   entryCSN;
  78         Attribute       *a;
  79
  80         a = ch_malloc( sizeof( Attribute ) );
  81         a->a_desc = slap_schema.si_ad_entryCSN;
  82         a->a_vals = ch_malloc( 2 * sizeof( struct berval ) );
  83         BER_BVZERO( &a->a_vals[ 1 ] );
  84
  85 #ifdef BACKSQL_SYNCPROV
  86         if ( op->o_sync && op->o_tag == LDAP_REQ_SEARCH && op->o_private != NULL ) {
  87                 assert( op->o_private != NULL );
  88
  89                 entryCSN = *((struct berval *)op->o_private);
  90
  91         } else
  92 #endif /* BACKSQL_SYNCPROV */
  93         {
  94                 entryCSN.bv_val = csnbuf;
  95                 entryCSN.bv_len = sizeof( csnbuf );
  96                 slap_get_csn( op, &entryCSN, 0 );
  97         }
  98
  99         ber_dupbv( &a->a_vals[ 0 ], &entryCSN );
 100
 101         a->a_nvals = a->a_vals;
 102
 103         a->a_next = NULL;
 104         a->a_flags = 0;
 105
 106         return a;
 107 }
 108
 109 int
 110 backsql_operational(
 111         Operation       *op,
 112         SlapReply       *rs )
 113 {
 114
 115         backsql_info    *bi = (backsql_info*)op->o_bd->be_private;
 116         SQLHDBC         dbh = SQL_NULL_HDBC;
 117         int             rc = 0;
 118         Attribute       **ap;
 119         enum {
 120                 BACKSQL_OP_HASSUBORDINATES = 0,
 121                 BACKSQL_OP_ENTRYUUID,
 122                 BACKSQL_OP_ENTRYCSN,
 123
 124                 BACKSQL_OP_LAST
 125         };
 126         int             get_conn = BACKSQL_OP_LAST,
 127                         got[ BACKSQL_OP_LAST ] = { 0 };
 128
 129         Debug( LDAP_DEBUG_TRACE, "==>backsql_operational(): entry \"%s\"\n",
 130                         rs->sr_entry->e_nname.bv_val, 0, 0 );
 131
 132         for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next ) {
 133                 if ( (*ap)->a_desc == slap_schema.si_ad_hasSubordinates ) {
 134                         get_conn--;
 135                         got[ BACKSQL_OP_HASSUBORDINATES ] = 1;
 136
 137                 } else if ( (*ap)->a_desc == slap_schema.si_ad_entryUUID ) {
 138                         get_conn--;
 139                         got[ BACKSQL_OP_ENTRYUUID ] = 1;
 140
 141                 } else if ( (*ap)->a_desc == slap_schema.si_ad_entryCSN ) {
 142                         get_conn--;
 143                         got[ BACKSQL_OP_ENTRYCSN ] = 1;
 144                 }
 145         }
 146
 147         if ( !get_conn ) {
 148                 return 0;
 149         }
 150
 151         rc = backsql_get_db_conn( op, &dbh );
 152         if ( rc != LDAP_SUCCESS ) {
 153                 Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 154                         "could not get connection handle - exiting\n",
 155                         0, 0, 0 );
 156                 return 1;
 157         }
 158
 159         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_hasSubordinates, rs->sr_attrs ) )
 160                         && !got[ BACKSQL_OP_HASSUBORDINATES ]
 161                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_hasSubordinates ) == NULL )
 162         {
 163                 rc = backsql_has_children( op, dbh, &rs->sr_entry->e_nname );
 164
 165                 switch( rc ) {
 166                 case LDAP_COMPARE_TRUE:
 167                 case LDAP_COMPARE_FALSE:
 168                         *ap = slap_operational_hasSubordinate( rc == LDAP_COMPARE_TRUE );
 169                         assert( *ap != NULL );
 170                         ap = &(*ap)->a_next;
 171                         rc = 0;
 172                         break;
 173
 174                 default:
 175                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 176                                 "has_children failed( %d)\n", rc, 0, 0 );
 177                         return 1;
 178                 }
 179         }
 180
 181         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryUUID, rs->sr_attrs ) )
 182                         && !got[ BACKSQL_OP_ENTRYUUID ]
 183                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID ) == NULL )
 184         {
 185                 backsql_srch_info       bsi = { 0 };
 186
 187                 rc = backsql_init_search( &bsi, &rs->sr_entry->e_nname,
 188                                 LDAP_SCOPE_BASE,
 189                                 (time_t)(-1), NULL, dbh, op, rs, NULL,
 190                                 BACKSQL_ISF_GET_ID );
 191                 if ( rc != LDAP_SUCCESS ) {
 192                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 193                                 "could not retrieve entry ID - no such entry\n",
 194                                 0, 0, 0 );
 195                         return 1;
 196                 }
 197
 198                 *ap = backsql_operational_entryUUID( bi, &bsi.bsi_base_id );
 199
 200                 (void)backsql_free_entryID( op, &bsi.bsi_base_id, 0 );
 201
 202                 if ( bsi.bsi_attrs != NULL ) {
 203                         op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
 204                 }
 205
 206                 if ( *ap == NULL ) {
 207                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 208                                 "could not retrieve entryUUID\n",
 209                                 0, 0, 0 );
 210                         return 1;
 211                 }
 212
 213                 ap = &(*ap)->a_next;
 214         }
 215
 216         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryCSN, rs->sr_attrs ) )
 217                         && !got[ BACKSQL_OP_ENTRYCSN ]
 218                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN ) == NULL )
 219         {
 220                 *ap = backsql_operational_entryCSN( op );
 221                 if ( *ap == NULL ) {
 222                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 223                                 "could not retrieve entryCSN\n",
 224                                 0, 0, 0 );
 225                         return 1;
 226                 }
 227
 228                 ap = &(*ap)->a_next;
 229         }
 230
 231         Debug( LDAP_DEBUG_TRACE, "<==backsql_operational(%d)\n", rc, 0, 0);
 232
 233         return rc;
 234 }
 235