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openldap  2.4.31
Functions
compare.c File Reference
#include "portable.h"
#include <stdio.h>
#include <sys/types.h>
#include "slap.h"
#include "proto-sql.h"

Go to the source code of this file.

Functions

int backsql_compare (Operation *op, SlapReply *rs)

Function Documentation

int backsql_compare ( Operation op,
SlapReply rs 
)

Definition at line 32 of file compare.c.

{
       SQLHDBC                     dbh = SQL_NULL_HDBC;
       Entry                e = { 0 };
       Attribute            *a = NULL;
       backsql_srch_info    bsi = { 0 };
       int                  rc;
       int                  manageDSAit = get_manageDSAit( op );
       AttributeName        anlist[2];

       Debug( LDAP_DEBUG_TRACE, "==>backsql_compare()\n", 0, 0, 0 );

       rs->sr_err = backsql_get_db_conn( op, &dbh );
       if ( rs->sr_err != LDAP_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE, "backsql_compare(): "
                     "could not get connection handle - exiting\n",
                     0, 0, 0 );

              rs->sr_text = ( rs->sr_err == LDAP_OTHER )
                     ? "SQL-backend error" : NULL;
              goto return_results;
       }

       anlist[ 0 ].an_name = op->oq_compare.rs_ava->aa_desc->ad_cname;
       anlist[ 0 ].an_desc = op->oq_compare.rs_ava->aa_desc;
       BER_BVZERO( &anlist[ 1 ].an_name );

       /*
        * Get the entry
        */
       bsi.bsi_e = &e;
       rc = backsql_init_search( &bsi, &op->o_req_ndn, LDAP_SCOPE_BASE,
                     (time_t)(-1), NULL, dbh, op, rs, anlist,
                     ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) );
       switch ( rc ) {
       case LDAP_SUCCESS:
              break;

       case LDAP_REFERRAL:
              if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
                            dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) )
              {
                     rs->sr_err = LDAP_SUCCESS;
                     rs->sr_text = NULL;
                     rs->sr_matched = NULL;
                     if ( rs->sr_ref ) {
                            ber_bvarray_free( rs->sr_ref );
                            rs->sr_ref = NULL;
                     }
                     break;
              }
              /* fallthru */

       default:
              Debug( LDAP_DEBUG_TRACE, "backsql_compare(): "
                     "could not retrieve compareDN ID - no such entry\n", 
                     0, 0, 0 );
              goto return_results;
       }

       if ( get_assert( op ) &&
                     ( test_filter( op, &e, get_assertion( op ) )
                       != LDAP_COMPARE_TRUE ) )
       {
              rs->sr_err = LDAP_ASSERTION_FAILED;
              goto return_results;
       }

       if ( is_at_operational( op->oq_compare.rs_ava->aa_desc->ad_type ) ) {
              SlapReply     nrs = { REP_SEARCH };
              Attribute     **ap;

              for ( ap = &e.e_attrs; *ap; ap = &(*ap)->a_next )
                     ;

              nrs.sr_attrs = anlist;
              nrs.sr_entry = &e;
              nrs.sr_attr_flags = SLAP_OPATTRS_NO;
              nrs.sr_operational_attrs = NULL;

              rs->sr_err = backsql_operational( op, &nrs );
              if ( rs->sr_err != LDAP_SUCCESS ) {
                     goto return_results;
              }
              
              *ap = nrs.sr_operational_attrs;
       }

       if ( ! access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
                            &op->oq_compare.rs_ava->aa_value,
                            ACL_COMPARE, NULL ) )
       {
              rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
              goto return_results;
       }

       rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
       for ( a = attrs_find( e.e_attrs, op->oq_compare.rs_ava->aa_desc );
                     a != NULL;
                     a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) )
       {
              rs->sr_err = LDAP_COMPARE_FALSE;
              if ( attr_valfind( a,
                                   SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
                                   SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
                                   &op->oq_compare.rs_ava->aa_value, NULL,
                                   op->o_tmpmemctx ) == 0 )
              {
                     rs->sr_err = LDAP_COMPARE_TRUE;
                     break;
              }
       }

return_results:;
       switch ( rs->sr_err ) {
       case LDAP_COMPARE_TRUE:
       case LDAP_COMPARE_FALSE:
              break;

       default:
              if ( !BER_BVISNULL( &e.e_nname ) &&
                            ! access_allowed( op, &e,
                                   slap_schema.si_ad_entry, NULL,
                                   ACL_DISCLOSE, NULL ) )
              {
                     rs->sr_err = LDAP_NO_SUCH_OBJECT;
                     rs->sr_text = NULL;
              }
              break;
       }

       send_ldap_result( op, rs );

       if ( rs->sr_matched ) {
              rs->sr_matched = NULL;
       }

       if ( rs->sr_ref ) {
              ber_bvarray_free( rs->sr_ref );
              rs->sr_ref = NULL;
       }

       if ( !BER_BVISNULL( &bsi.bsi_base_id.eid_ndn ) ) {
              (void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );
       }

       if ( !BER_BVISNULL( &e.e_nname ) ) {
              backsql_entry_clean( op, &e );
       }

       if ( bsi.bsi_attrs != NULL ) {
              op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
       }

       Debug(LDAP_DEBUG_TRACE,"<==backsql_compare()\n",0,0,0);
       switch ( rs->sr_err ) {
       case LDAP_COMPARE_TRUE:
       case LDAP_COMPARE_FALSE:
              return LDAP_SUCCESS;

       default:
              return rs->sr_err;
       }
}

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