mirror of
https://github.com/reactos/reactos.git
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233 lines
5.5 KiB
C
233 lines
5.5 KiB
C
/*
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* xfilter.h
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*
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* Address filtering for NDIS MACs
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*
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* This file is part of the w32api package.
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*
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* Contributors:
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* Created by Casper S. Hornstrup <chorns@users.sourceforge.net>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAIMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#ifndef _X_FILTER_DEFS_
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#define _X_FILTER_DEFS_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ETH_LENGTH_OF_ADDRESS 6
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#define ETH_IS_BROADCAST(Address) \
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((((PUCHAR)(Address))[0] == ((UCHAR)0xff)) && (((PUCHAR)(Address))[1] == ((UCHAR)0xff)))
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#define ETH_IS_MULTICAST(Address) \
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(BOOLEAN)(((PUCHAR)(Address))[0] & ((UCHAR)0x01))
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#define ETH_COMPARE_NETWORK_ADDRESSES(_A, _B, _Result) \
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{ \
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if (*(ULONG UNALIGNED *)&(_A)[2] > *(ULONG UNALIGNED *)&(_B)[2]) \
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{ \
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*(_Result) = 1; \
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} \
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else if (*(ULONG UNALIGNED *)&(_A)[2] < *(ULONG UNALIGNED *)&(_B)[2]) \
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{ \
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*(_Result) = (UINT)-1; \
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} \
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else if (*(USHORT UNALIGNED *)(_A) > *(USHORT UNALIGNED *)(_B)) \
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{ \
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*(_Result) = 1; \
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} \
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else if (*(USHORT UNALIGNED *)(_A) < *(USHORT UNALIGNED *)(_B)) \
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{ \
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*(_Result) = (UINT)-1; \
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} \
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else \
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{ \
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*(_Result) = 0; \
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} \
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}
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#define ETH_COMPARE_NETWORK_ADDRESSES_EQ(_A,_B, _Result) \
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{ \
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if ((*(ULONG UNALIGNED *)&(_A)[2] == *(ULONG UNALIGNED *)&(_B)[2]) && \
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(*(USHORT UNALIGNED *)(_A) == *(USHORT UNALIGNED *)(_B))) \
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{ \
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*(_Result) = 0; \
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} \
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else \
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{ \
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*(_Result) = 1; \
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} \
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}
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#define ETH_COPY_NETWORK_ADDRESS(_D, _S) \
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{ \
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*((ULONG UNALIGNED *)(_D)) = *((ULONG UNALIGNED *)(_S)); \
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*((USHORT UNALIGNED *)((UCHAR *)(_D) + 4)) = *((USHORT UNALIGNED *)((UCHAR *)(_S) + 4)); \
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}
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#define FDDI_LENGTH_OF_LONG_ADDRESS 6
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#define FDDI_LENGTH_OF_SHORT_ADDRESS 2
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#define FDDI_IS_BROADCAST(Address, AddressLength, Result) \
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*Result = ((*(PUCHAR)(Address) == (UCHAR)0xFF) && \
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(*((PUCHAR)(Address) + 1) == (UCHAR)0xFF))
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#define FDDI_IS_MULTICAST(Address, AddressLength, Result) \
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*Result = (BOOLEAN)(*(UCHAR *)(Address) & (UCHAR)0x01)
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#define FDDI_IS_SMT(FcByte, Result) \
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{ \
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*Result = ((FcByte & ((UCHAR)0xf0)) == 0x40); \
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}
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#define FDDI_COMPARE_NETWORK_ADDRESSES(_A, _B, _Length, _Result) \
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{ \
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if (*(USHORT UNALIGNED *)(_A) > *(USHORT UNALIGNED *)(_B)) \
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{ \
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*(_Result) = 1; \
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} \
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else if (*(USHORT UNALIGNED *)(_A) < *(USHORT UNALIGNED *)(_B)) \
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{ \
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*(_Result) = (UINT)-1; \
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} \
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else if (_Length == 2) \
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{ \
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*(_Result) = 0; \
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} \
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else if (*(ULONG UNALIGNED *)((PUCHAR)(_A) + 2) > *(ULONG UNALIGNED *)((PUCHAR)(_B) + 2)) \
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{ \
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*(_Result) = 1; \
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} \
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else if (*(ULONG UNALIGNED *)((PUCHAR)(_A) + 2) < *(ULONG UNALIGNED *)((PUCHAR)(_B) + 2)) \
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{ \
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*(_Result) = (UINT)-1; \
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} \
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else \
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{ \
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*(_Result) = 0; \
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} \
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}
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#define FDDI_COMPARE_NETWORK_ADDRESSES_EQ(_A, _B, _Length, _Result) \
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{ \
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if ((*(USHORT UNALIGNED *)(_A) == *(USHORT UNALIGNED *)(_B)) && \
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(((_Length) == 2) || \
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(*(ULONG UNALIGNED *)((PUCHAR)(_A) + 2) == *(ULONG UNALIGNED *)((PUCHAR)(_B) + 2)))) \
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{ \
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*(_Result) = 0; \
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} \
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else \
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{ \
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*(_Result) = 1; \
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} \
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}
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#define FDDI_COPY_NETWORK_ADDRESS(D, S, AddressLength) \
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{ \
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PCHAR _D = (D); \
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PCHAR _S = (S); \
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UINT _C = (AddressLength); \
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for ( ; _C > 0 ; _D++, _S++, _C--) \
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{ \
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*_D = *_S; \
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} \
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}
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#define TR_LENGTH_OF_FUNCTIONAL 4
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#define TR_LENGTH_OF_ADDRESS 6
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typedef ULONG TR_FUNCTIONAL_ADDRESS;
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typedef ULONG TR_GROUP_ADDRESS;
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#define TR_IS_NOT_DIRECTED(_Address, _Result) \
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{ \
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*(_Result) = (BOOLEAN)((_Address)[0] & 0x80); \
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}
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#define TR_IS_FUNCTIONAL(_Address, _Result) \
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{ \
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*(_Result) = (BOOLEAN)(((_Address)[0] & 0x80) && !((_Address)[2] & 0x80)); \
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}
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#define TR_IS_GROUP(_Address, _Result) \
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{ \
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*(_Result) = (BOOLEAN)((_Address)[0] & (_Address)[2] & 0x80); \
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}
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#define TR_IS_SOURCE_ROUTING(_Address, _Result) \
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{ \
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*(_Result) = (BOOLEAN)((_Address)[0] & 0x80); \
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}
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#define TR_IS_MAC_FRAME(_PacketHeader) ((((PUCHAR)_PacketHeader)[1] & 0xFC) == 0)
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#define TR_IS_BROADCAST(_Address, _Result) \
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{ \
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*(_Result) = (BOOLEAN)(((*(UNALIGNED USHORT *)&(_Address)[0] == 0xFFFF) || \
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(*(UNALIGNED USHORT *)&(_Address)[0] == 0x00C0)) && \
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(*(UNALIGNED ULONG *)&(_Address)[2] == 0xFFFFFFFF)); \
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}
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#define TR_COMPARE_NETWORK_ADDRESSES(_A, _B, _Result) \
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{ \
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if (*(ULONG UNALIGNED *)&(_A)[2] > *(ULONG UNALIGNED *)&(_B)[2]) \
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{ \
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*(_Result) = 1; \
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} \
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else if (*(ULONG UNALIGNED *)&(_A)[2] < *(ULONG UNALIGNED *)&(_B)[2]) \
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{ \
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*(_Result) = (UINT)-1; \
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} \
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else if (*(USHORT UNALIGNED *)(_A) > *(USHORT UNALIGNED *)(_B)) \
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{ \
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*(_Result) = 1; \
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} \
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else if (*(USHORT UNALIGNED *)(_A) < *(USHORT UNALIGNED *)(_B)) \
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{ \
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*(_Result) = (UINT)-1; \
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} \
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else \
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{ \
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*(_Result) = 0; \
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} \
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}
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#define TR_COPY_NETWORK_ADDRESS(_D, _S) \
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{ \
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*((ULONG UNALIGNED *)(_D)) = *((ULONG UNALIGNED *)(_S)); \
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*((USHORT UNALIGNED *)((UCHAR *)(_D)+4)) = *((USHORT UNALIGNED *)((UCHAR *)(_S) + 4)); \
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}
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#define TR_COMPARE_NETWORK_ADDRESSES_EQ(_A, _B, _Result) \
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{ \
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if ((*(ULONG UNALIGNED *)&(_A)[2] == *(ULONG UNALIGNED *)&(_B)[2]) && \
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(*(USHORT UNALIGNED *)&(_A)[0] == *(USHORT UNALIGNED *)&(_B)[0])) \
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{ \
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*(_Result) = 0; \
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} \
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else \
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{ \
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*(_Result) = 1; \
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} \
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _X_FILTER_DEFS_ */
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