ntos_io.c

来自「winNT技术操作系统,国外开放的原代码和LIUX一样」· C语言 代码 · 共 82 行

/*
 * NTOSKRNL Io Regressions KM-Test
 * ReactOS Kernel Mode Regression Testing framework
 *
 * Copyright 2006 Aleksey Bragin <[e-mail]>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; see the file COPYING.LIB.
 * If not, write to the Free Software Foundation,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/* INCLUDES *******************************************************************/

#include <ddk/ntddk.h>
#include "kmtest.h"

#define NDEBUG
#include "debug.h"

/* PUBLIC FUNCTIONS ***********************************************************/

VOID FASTCALL NtoskrnlIoMdlTest()
{
    PMDL Mdl;
    PIRP Irp;
    PVOID VirtualAddress;
    ULONG MdlSize = 2*4096+184; // 2 pages and some random value

    StartTest();

    // Try to alloc 2Gb MDL
    Mdl = IoAllocateMdl(NULL, 2048UL*0x100000, FALSE, FALSE, NULL);

    ok(Mdl == NULL,
      "IoAllocateMdl should fail allocation of 2Gb or more, but got Mdl=0x%X",
      (UINT)Mdl);

    if (Mdl)
        IoFreeMdl(Mdl);

    // Now create a valid MDL
    VirtualAddress = ExAllocatePool(NonPagedPool, MdlSize);
    Mdl = IoAllocateMdl(VirtualAddress, MdlSize, FALSE, FALSE, NULL);
    ok(Mdl != NULL, "Mdl allocation failed");
    // Check fields of the allocated struct
    ok(Mdl->Next == NULL, "Mdl->Next should be NULL, but is 0x%X",
        (UINT)Mdl->Next);
    ok(Mdl->ByteCount == MdlSize,
        "Mdl->ByteCount should be equal to MdlSize, but is 0x%X",
        (UINT)Mdl->ByteCount);
    // TODO: Check other fields of MDL struct

    IoFreeMdl(Mdl);
    // Allocate now with pointer to an Irp
    Irp = IoAllocateIrp(1, FALSE);
    ok(Irp != NULL, "IRP allocation failed");
    Mdl = IoAllocateMdl(VirtualAddress, MdlSize, FALSE, FALSE, Irp);
    ok(Mdl != NULL, "Mdl allocation failed");
    ok(Irp->MdlAddress == Mdl, "Irp->MdlAddress should be 0x%X, but is 0x%X",
        (UINT)Mdl, (UINT)Irp->MdlAddress);

    IoFreeMdl(Mdl);

    // TODO: Check a case when SecondaryBuffer == TRUE

    IoFreeIrp(Irp);
    ExFreePool(VirtualAddress);

    FinishTest("NTOSKRNL Io Mdl");
}