mirror of
https://github.com/reactos/reactos.git
synced 2025-02-25 01:39:30 +00:00
c2d0d784c7
- Create a branch to do a proper merge of USB work from a trunk base instead of from cmake-bringup - In the future, DO NOT under any circumstances branch another branch. This leads to merge problems! svn path=/branches/usb-bringup-trunk/; revision=55018
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
#pragma once
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#include <reactos/probe.h>
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static
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__inline
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NTSTATUS
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DefaultSetInfoBufferCheck(ULONG Class,
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const INFORMATION_CLASS_INFO *ClassList,
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ULONG ClassListEntries,
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PVOID Buffer,
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ULONG BufferLength,
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KPROCESSOR_MODE PreviousMode)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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if (Class < ClassListEntries)
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{
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if (!(ClassList[Class].Flags & ICIF_SET))
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{
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Status = STATUS_INVALID_INFO_CLASS;
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}
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else if (ClassList[Class].RequiredSizeSET > 0 &&
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BufferLength != ClassList[Class].RequiredSizeSET)
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{
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if (!(ClassList[Class].Flags & ICIF_SET_SIZE_VARIABLE))
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{
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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}
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if (NT_SUCCESS(Status))
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{
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if (PreviousMode != KernelMode)
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{
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_SEH2_TRY
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{
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ProbeForRead(Buffer,
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BufferLength,
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ClassList[Class].AlignmentSET);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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}
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}
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}
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else
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Status = STATUS_INVALID_INFO_CLASS;
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return Status;
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}
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static
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__inline
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NTSTATUS
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DefaultQueryInfoBufferCheck(ULONG Class,
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const INFORMATION_CLASS_INFO *ClassList,
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ULONG ClassListEntries,
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PVOID Buffer,
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ULONG BufferLength,
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PULONG ReturnLength,
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PULONG_PTR ReturnLengthPtr,
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KPROCESSOR_MODE PreviousMode)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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if (Class < ClassListEntries)
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{
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if (!(ClassList[Class].Flags & ICIF_QUERY))
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{
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Status = STATUS_INVALID_INFO_CLASS;
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}
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else if (ClassList[Class].RequiredSizeQUERY > 0 &&
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BufferLength != ClassList[Class].RequiredSizeQUERY)
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{
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if (!(ClassList[Class].Flags & ICIF_QUERY_SIZE_VARIABLE))
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{
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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}
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if (NT_SUCCESS(Status))
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{
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if (PreviousMode != KernelMode)
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{
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_SEH2_TRY
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{
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if (Buffer != NULL)
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{
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ProbeForWrite(Buffer,
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BufferLength,
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ClassList[Class].AlignmentQUERY);
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}
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if (ReturnLength != NULL)
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{
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ProbeForWriteUlong(ReturnLength);
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}
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if (ReturnLengthPtr != NULL)
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{
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ProbeForWrite(ReturnLengthPtr, sizeof(ULONG_PTR), sizeof(ULONG_PTR));
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}
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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}
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}
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}
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else
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Status = STATUS_INVALID_INFO_CLASS;
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return Status;
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}
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