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Add alignment checks to KdpSysReadIoSpace and KdpSysWriteIoSpace

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svn path=/branches/ros-amd64-bringup/; revision=43554
This commit is contained in:
Timo Kreuzer
2009-10-18 14:36:03 +00:00
parent 0fb6c8265c
commit d901cd4fbe
1 changed files with 18 additions and 2 deletions
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reactos/ntoskrnl/kd64/amd64/kdsup.c
+18 -2
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@@ -264,6 +264,14 @@ KdpSysReadIoSpace(IN ULONG InterfaceType,
return STATUS_INVALID_PARAMETER;
}
/* Check for correct alignment */
if ((IoAddress & (DataSize - 1)))
{
/* Invalid alignment */
*ActualDataSize = 0;
return STATUS_DATATYPE_MISALIGNMENT;
}
switch (DataSize)
{
case sizeof(UCHAR):
@@ -284,7 +292,7 @@ KdpSysReadIoSpace(IN ULONG InterfaceType,
default:
/* Invalid data size */
*ActualDataSize = 0;
return STATUS_UNSUCCESSFUL;
return STATUS_INVALID_PARAMETER;
}
/* Return the size of the data */
@@ -313,6 +321,14 @@ KdpSysWriteIoSpace(IN ULONG InterfaceType,
return STATUS_INVALID_PARAMETER;
}
/* Check for correct alignment */
if ((IoAddress & (DataSize - 1)))
{
/* Invalid alignment */
*ActualDataSize = 0;
return STATUS_DATATYPE_MISALIGNMENT;
}
switch (DataSize)
{
case sizeof(UCHAR):
@@ -333,7 +349,7 @@ KdpSysWriteIoSpace(IN ULONG InterfaceType,
default:
/* Invalid data size */
*ActualDataSize = 0;
return STATUS_UNSUCCESSFUL;
return STATUS_INVALID_PARAMETER;
}
/* Return the size of the data */