| 1 | /* $Id: OS2KSEL.h,v 1.1 2001-09-26 03:52:36 bird Exp $
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| 2 | *
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| 3 | * Selector Manager prototypes, structures and definitions.
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| 4 | *
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| 5 | * Copyright (c) 2001 knut st. osmundsen (kosmunds@csc.com)
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| 6 | *
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| 7 | * Project Odin Software License can be found in LICENSE.TXT
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| 8 | *
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| 9 | */
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| 10 | #ifndef _OS2KSEL_h_
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| 11 | #define _OS2KSEL_h_
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| 12 |
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| 13 |
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| 14 | /**
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| 15 | * Converts 16:32 address to FLAT 32-bits address.
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| 16 | * @returns Flat 32-bits address.
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| 17 | * -1 on error.
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| 18 | * @param ulOffset Offset.
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| 19 | * @param usSel Selector.
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| 20 | */
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| 21 | extern PVOID KRNLCALL SELVirtToLin(ULONG ulOffset, USHORT usSel);
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| 22 | extern PVOID KRNLCALL OrgSELVirtToLin(ULONG ulOffset, USHORT usSel);
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| 23 |
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| 24 |
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| 25 | /**
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| 26 | * Converts selector to linar address.
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| 27 | * @returns Flat 32-bits address.
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| 28 | * -1 on error.
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| 29 | * @param usSel Selector.
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| 30 | */
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| 31 | extern PVOID KRNLCALL SELConvertToLinear(USHORT usSel, PPTDA pPTDA);
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| 32 | extern PVOID KRNLCALL OrgSELConvertToLinear(USHORT usSel, PPTDA pPTDA);
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| 33 |
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| 34 |
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| 35 | /**
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| 36 | * Converts a 32-bit flat pointer to an selector if possible.
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| 37 | * @returns Selector (eax), offset (edx).
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| 38 | * @param pv Flat 32-bit address.
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| 39 | * @param ulRPL Requested privilege level of the selector.
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| 40 | * @param hPTDA PTDA handle. NULLHANDLE means current PTDA.
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| 41 | */
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| 42 | extern USHORT KRNLCALL SELConvertToSelector(PVOID pv, ULONG ulRPL, HPTDA hPTDA);
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| 43 | extern USHORT KRNLCALL OrgSELConvertToSelector(PVOID pv, ULONG ulRPL, HPTDA hPTDA);
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| 44 |
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| 45 |
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| 46 | /**
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| 47 | * Allocates a GDT selector.
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| 48 | * @returns OS2 return code. (I.e. NO_ERROR on success.)
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| 49 | * @param pusSel Where to put the selector on successful return.
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| 50 | */
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| 51 | extern ULONG KRNLCALL SELAllocGDT(PUSHORT pusSel);
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| 52 | extern ULONG KRNLCALL OrgSELAllocGDT(PUSHORT pusSel);
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| 53 |
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| 54 |
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| 55 | #endif
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| 56 |
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