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[KMTESTS] Improve IoVolumeDeviceToDosName() tests (#6990)

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- Limit the HarddiskVolume loop to 32 trials (instead of an unknown
  number of them). Ideally the list of volumes has to be queried from
  the volume manager, instead of hardcoding them (TODO).

- Verify that the buffer returned by IoVolumeDeviceToDosName() is
  indeed a unicode multi-string (ends with two NULs), and, in the
  case it specifies a volume GUID, that it's a valid one.
This commit is contained in:
Hermès Bélusca-Maïto 2025-01-11 22:31:47 +01:00
parent cc1deb2902
commit bae799382a
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GPG key ID: 3B2539C65E7B93D0
1 changed files with 23 additions and 6 deletions
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29
modules/rostests/kmtests/ntos_io/IoVolume.c
View file

@ -6,7 +6,7 @@
*/
#include <kmt_test.h>
#include <mountmgr.h>
static
void
@ -24,17 +24,16 @@ TestIoVolumeDeviceToDosName(void)
RtlInitEmptyUnicodeString(&VolumeDeviceName,
VolumeDeviceNameBuffer,
sizeof(VolumeDeviceNameBuffer));
VolumeNumber = 0;
while (1)
// TODO: Query the partition/volume manager for the list of volumes.
for (VolumeNumber = 0; VolumeNumber < 32; ++VolumeNumber)
{
VolumeNumber++;
Status = RtlStringCbPrintfW(VolumeDeviceName.Buffer,
VolumeDeviceName.MaximumLength,
L"\\Device\\HarddiskVolume%lu",
VolumeNumber);
if (!NT_SUCCESS(Status))
{
trace("RtlStringCbPrintfW(0x%lx) failed with %lx\n",
trace("RtlStringCbPrintfW(%lu) failed with 0x%lx\n",
VolumeNumber, Status);
break;
}
@ -46,7 +45,7 @@ TestIoVolumeDeviceToDosName(void)
&DeviceObject);
if (!NT_SUCCESS(Status))
{
trace("IoGetDeviceObjectPointer(%wZ) failed with %lx\n",
trace("IoGetDeviceObjectPointer(%wZ) failed with 0x%lx\n",
&VolumeDeviceName, Status);
continue;
}
@ -56,6 +55,22 @@ TestIoVolumeDeviceToDosName(void)
if (!skip(NT_SUCCESS(Status), "No DOS name\n"))
{
trace("DOS name for %wZ is %wZ\n", &VolumeDeviceName, &DosName);
/* The DosName should contain one NUL-terminated string (always there?),
* plus one final NUL-terminator */
ok(DosName.MaximumLength == DosName.Length + sizeof(UNICODE_NULL),
"Unexpected DOS name maximum length %hu, expected %hu\n",
DosName.MaximumLength, DosName.Length + sizeof(UNICODE_NULL));
ok(DosName.Length >= sizeof(UNICODE_NULL),
"DOS name too short (length: %lu)\n",
DosName.Length / sizeof(WCHAR));
ok(DosName.Buffer[DosName.Length / sizeof(WCHAR)] == UNICODE_NULL,
"Missing NUL-terminator (1)\n");
ok(DosName.Buffer[DosName.MaximumLength / sizeof(WCHAR) - 1] == UNICODE_NULL,
"Missing NUL-terminator (2)\n");
/* The DOS name is either a drive letter, or a
* volume GUID name (if the volume is not mounted) */
if (DosName.Length == 2 * sizeof(WCHAR))
{
ok(DosName.Buffer[0] >= L'A' &&
@ -67,6 +82,8 @@ TestIoVolumeDeviceToDosName(void)
{
ok(RtlPrefixUnicodeString(&DosVolumePrefix, &DosName, FALSE),
"Unexpected volume path: %wZ\n", &DosName);
ok(MOUNTMGR_IS_DOS_VOLUME_NAME(&DosName),
"Invalid DOS volume path returned: %wZ\n", &DosName);
}
RtlFreeUnicodeString(&DosName);
}