external/bsd/openldap/dist/servers/slapd/back-sql/operational.c

   1 /* $OpenLDAP: pkg/ldap/servers/slapd/back-sql/operational.c,v 1.21.2.5 2008/02/11 23:26:48 kurt Exp $ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2008 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_numvals = 1;
  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         return a;
  68 }
  69
  70 Attribute *
  71 backsql_operational_entryCSN( Operation *op )
  72 {
  73         char            csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
  74         struct berval   entryCSN;
  75         Attribute       *a;
  76
  77         a = attr_alloc( slap_schema.si_ad_entryCSN );
  78         a->a_numvals = 1;
  79         a->a_vals = ch_malloc( 2 * sizeof( struct berval ) );
  80         BER_BVZERO( &a->a_vals[ 1 ] );
  81
  82 #ifdef BACKSQL_SYNCPROV
  83         if ( op->o_sync && op->o_tag == LDAP_REQ_SEARCH && op->o_private != NULL ) {
  84                 assert( op->o_private != NULL );
  85
  86                 entryCSN = *((struct berval *)op->o_private);
  87
  88         } else
  89 #endif /* BACKSQL_SYNCPROV */
  90         {
  91                 entryCSN.bv_val = csnbuf;
  92                 entryCSN.bv_len = sizeof( csnbuf );
  93                 slap_get_csn( op, &entryCSN, 0 );
  94         }
  95
  96         ber_dupbv( &a->a_vals[ 0 ], &entryCSN );
  97
  98         a->a_nvals = a->a_vals;
  99
 100         return a;
 101 }
 102
 103 int
 104 backsql_operational(
 105         Operation       *op,
 106         SlapReply       *rs )
 107 {
 108
 109         backsql_info    *bi = (backsql_info*)op->o_bd->be_private;
 110         SQLHDBC         dbh = SQL_NULL_HDBC;
 111         int             rc = 0;
 112         Attribute       **ap;
 113         enum {
 114                 BACKSQL_OP_HASSUBORDINATES = 0,
 115                 BACKSQL_OP_ENTRYUUID,
 116                 BACKSQL_OP_ENTRYCSN,
 117
 118                 BACKSQL_OP_LAST
 119         };
 120         int             get_conn = BACKSQL_OP_LAST,
 121                         got[ BACKSQL_OP_LAST ] = { 0 };
 122
 123         Debug( LDAP_DEBUG_TRACE, "==>backsql_operational(): entry \"%s\"\n",
 124                         rs->sr_entry->e_nname.bv_val, 0, 0 );
 125
 126         for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next ) {
 127                 if ( (*ap)->a_desc == slap_schema.si_ad_hasSubordinates ) {
 128                         get_conn--;
 129                         got[ BACKSQL_OP_HASSUBORDINATES ] = 1;
 130
 131                 } else if ( (*ap)->a_desc == slap_schema.si_ad_entryUUID ) {
 132                         get_conn--;
 133                         got[ BACKSQL_OP_ENTRYUUID ] = 1;
 134
 135                 } else if ( (*ap)->a_desc == slap_schema.si_ad_entryCSN ) {
 136                         get_conn--;
 137                         got[ BACKSQL_OP_ENTRYCSN ] = 1;
 138                 }
 139         }
 140
 141         if ( !get_conn ) {
 142                 return 0;
 143         }
 144
 145         rc = backsql_get_db_conn( op, &dbh );
 146         if ( rc != LDAP_SUCCESS ) {
 147                 Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 148                         "could not get connection handle - exiting\n",
 149                         0, 0, 0 );
 150                 return 1;
 151         }
 152
 153         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_hasSubordinates, rs->sr_attrs ) )
 154                         && !got[ BACKSQL_OP_HASSUBORDINATES ]
 155                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_hasSubordinates ) == NULL )
 156         {
 157                 rc = backsql_has_children( op, dbh, &rs->sr_entry->e_nname );
 158
 159                 switch( rc ) {
 160                 case LDAP_COMPARE_TRUE:
 161                 case LDAP_COMPARE_FALSE:
 162                         *ap = slap_operational_hasSubordinate( rc == LDAP_COMPARE_TRUE );
 163                         assert( *ap != NULL );
 164                         ap = &(*ap)->a_next;
 165                         rc = 0;
 166                         break;
 167
 168                 default:
 169                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 170                                 "has_children failed( %d)\n", rc, 0, 0 );
 171                         return 1;
 172                 }
 173         }
 174
 175         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryUUID, rs->sr_attrs ) )
 176                         && !got[ BACKSQL_OP_ENTRYUUID ]
 177                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID ) == NULL )
 178         {
 179                 backsql_srch_info       bsi = { 0 };
 180
 181                 rc = backsql_init_search( &bsi, &rs->sr_entry->e_nname,
 182                                 LDAP_SCOPE_BASE,
 183                                 (time_t)(-1), NULL, dbh, op, rs, NULL,
 184                                 BACKSQL_ISF_GET_ID );
 185                 if ( rc != LDAP_SUCCESS ) {
 186                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 187                                 "could not retrieve entry ID - no such entry\n",
 188                                 0, 0, 0 );
 189                         return 1;
 190                 }
 191
 192                 *ap = backsql_operational_entryUUID( bi, &bsi.bsi_base_id );
 193
 194                 (void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );
 195
 196                 if ( bsi.bsi_attrs != NULL ) {
 197                         op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
 198                 }
 199
 200                 if ( *ap == NULL ) {
 201                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 202                                 "could not retrieve entryUUID\n",
 203                                 0, 0, 0 );
 204                         return 1;
 205                 }
 206
 207                 ap = &(*ap)->a_next;
 208         }
 209
 210         if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryCSN, rs->sr_attrs ) )
 211                         && !got[ BACKSQL_OP_ENTRYCSN ]
 212                         && attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN ) == NULL )
 213         {
 214                 *ap = backsql_operational_entryCSN( op );
 215                 if ( *ap == NULL ) {
 216                         Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
 217                                 "could not retrieve entryCSN\n",
 218                                 0, 0, 0 );
 219                         return 1;
 220                 }
 221
 222                 ap = &(*ap)->a_next;
 223         }
 224
 225         Debug( LDAP_DEBUG_TRACE, "<==backsql_operational(%d)\n", rc, 0, 0);
 226
 227         return rc;
 228 }
 229