mirror of
https://github.com/reactos/reactos.git
synced 2024-11-04 22:00:55 +00:00
6031bd0162
- Add a test for the maximum data length for MDLs CORE-12132 svn path=/trunk/; revision=72964
76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/*
|
|
* PROJECT: ReactOS kernel-mode tests
|
|
* LICENSE: LGPLv2+ - See COPYING.LIB in the top level directory
|
|
* PURPOSE: Kernel-Mode Test Suite Io Regressions KM-Test (Mdl)
|
|
* PROGRAMMER: Aleksey Bragin <aleksey@reactos.org>
|
|
*/
|
|
|
|
#include <kmt_test.h>
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
START_TEST(IoMdl)
|
|
{
|
|
PMDL Mdl;
|
|
PIRP Irp;
|
|
PVOID VirtualAddress;
|
|
ULONG MdlSize = 2*4096+184; // 2 pages and some random value
|
|
ULONG TooLargeMdlSize = (0x10000 - sizeof(MDL)) / sizeof(ULONG_PTR) * PAGE_SIZE;
|
|
|
|
// 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\n",
|
|
(UINT_PTR)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\n");
|
|
// Check fields of the allocated struct
|
|
ok(Mdl->Next == NULL, "Mdl->Next should be NULL, but is 0x%X\n",
|
|
(UINT_PTR)Mdl->Next);
|
|
ok(Mdl->ByteCount == MdlSize,
|
|
"Mdl->ByteCount should be equal to MdlSize, but is 0x%X\n",
|
|
(UINT_PTR)Mdl->ByteCount);
|
|
// TODO: Check other fields of MDL struct
|
|
|
|
IoFreeMdl(Mdl);
|
|
|
|
// Test maximum size for an MDL
|
|
Mdl = IoAllocateMdl(NULL, TooLargeMdlSize, FALSE, FALSE, NULL);
|
|
ok(Mdl == NULL, "Mdl allocation for %lu bytes succeeded\n", TooLargeMdlSize);
|
|
if (Mdl) IoFreeMdl(Mdl);
|
|
|
|
Mdl = IoAllocateMdl(NULL, TooLargeMdlSize - PAGE_SIZE + 1, FALSE, FALSE, NULL);
|
|
ok(Mdl == NULL, "Mdl allocation for %lu bytes succeeded\n", TooLargeMdlSize - PAGE_SIZE + 1);
|
|
if (Mdl) IoFreeMdl(Mdl);
|
|
|
|
Mdl = IoAllocateMdl(NULL, TooLargeMdlSize - PAGE_SIZE, FALSE, FALSE, NULL);
|
|
ok(Mdl != NULL, "Mdl allocation for %lu bytes failed\n", TooLargeMdlSize - PAGE_SIZE);
|
|
if (Mdl) IoFreeMdl(Mdl);
|
|
|
|
Mdl = IoAllocateMdl(NULL, TooLargeMdlSize / 2, FALSE, FALSE, NULL);
|
|
ok(Mdl != NULL, "Mdl allocation for %lu bytes failed\n", TooLargeMdlSize / 2);
|
|
if (Mdl) IoFreeMdl(Mdl);
|
|
|
|
// Allocate now with pointer to an Irp
|
|
Irp = IoAllocateIrp(1, FALSE);
|
|
ok(Irp != NULL, "IRP allocation failed\n");
|
|
Mdl = IoAllocateMdl(VirtualAddress, MdlSize, FALSE, FALSE, Irp);
|
|
ok(Mdl != NULL, "Mdl allocation failed\n");
|
|
ok(Irp->MdlAddress == Mdl, "Irp->MdlAddress should be 0x%X, but is 0x%X\n",
|
|
(UINT_PTR)Mdl, (UINT_PTR)Irp->MdlAddress);
|
|
|
|
IoFreeMdl(Mdl);
|
|
|
|
// TODO: Check a case when SecondaryBuffer == TRUE
|
|
|
|
IoFreeIrp(Irp);
|
|
ExFreePool(VirtualAddress);
|
|
}
|