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