C++ (Cpp) SeDeassignSecurity示例

示例#1

文件： obsecure.c 项目： HBelusca/NasuTek-Odyssey

/*++
* @name ObAssignSecurity
* @implemented NT4
*
*     The ObAssignSecurity routine <FILLMEIN>
*
* @param AccessState
*        <FILLMEIN>
*
* @param SecurityDescriptor
*        <FILLMEIN>
*
* @param Object
*        <FILLMEIN>
*
* @param Type
*        <FILLMEIN>
*
* @return STATUS_SUCCESS or appropriate error value.
*
* @remarks None.
*
*--*/
NTSTATUS
NTAPI
ObAssignSecurity(IN PACCESS_STATE AccessState,
                 IN PSECURITY_DESCRIPTOR SecurityDescriptor,
                 IN PVOID Object,
                 IN POBJECT_TYPE Type)
{
    PSECURITY_DESCRIPTOR NewDescriptor;
    NTSTATUS Status;
    KIRQL CalloutIrql;
    PAGED_CODE();

    /* Build the new security descriptor */
    Status = SeAssignSecurity(SecurityDescriptor,
                              AccessState->SecurityDescriptor,
                              &NewDescriptor,
                              (Type == ObDirectoryType),
                              &AccessState->SubjectSecurityContext,
                              &Type->TypeInfo.GenericMapping,
                              PagedPool);
    if (!NT_SUCCESS(Status)) return Status;

    /* Call the security method */
    ObpCalloutStart(&CalloutIrql);
    Status = Type->TypeInfo.SecurityProcedure(Object,
                                              AssignSecurityDescriptor,
                                              NULL,
                                              NewDescriptor,
                                              NULL,
                                              NULL,
                                              PagedPool,
                                              &Type->TypeInfo.GenericMapping);
    ObpCalloutEnd(CalloutIrql, "Security", Type, Object);

    /* Check for failure and deassign security if so */
    if (!NT_SUCCESS(Status)) SeDeassignSecurity(&NewDescriptor);

    /* Return to caller */
    return Status;
}

示例#2

文件： strucsup.c 项目： BillTheBest/WinNT4

VOID
MsDeleteFcb (
    IN PFCB Fcb
    )

/*++

Routine Description:

    This routine deallocates and removes an FCB from our in-memory data
    structures.  It also will remove all associated underlings.

Arguments:

    Fcb - Supplies the FCB to be removed

Return Value:

    None

--*/

{
    PAGED_CODE();
    DebugTrace(+1, Dbg, "MsDeleteFcb, Fcb = %08lx\n", (ULONG)Fcb);

    //
    // Release the FCB reference to the VCB.
    //

    MsDereferenceVcb( Fcb->Vcb );

    ExFreePool( Fcb->FullFileName.Buffer );

    //
    // Free up the data queue.
    //

    MsUninitializeDataQueue(
        &Fcb->DataQueue,
        Fcb->CreatorProcess
        );

    //
    // If there is a security descriptor on the mailslot then deassign it
    //

    if (Fcb->SecurityDescriptor != NULL) {
        SeDeassignSecurity( &Fcb->SecurityDescriptor );
    }

    //
    //  Free up the resource variable.
    //

    ExDeleteResource( &(Fcb->Resource) );

    //
    // Finally deallocate the FCB record.
    //

    ExFreePool( Fcb );

    //
    // Return to the caller
    //

    DebugTrace(-1, Dbg, "MsDeleteFcb -> VOID\n", 0);

    return;
}