/*++ Copyright (c) Microsoft Corporation. All rights reserved. Module Name: xfilter.h Abstract: Header file for the address filtering library for NDIS MAC's. Author: Environment: Notes: None. Revision History: --*/ #ifndef _X_FILTER_DEFS_ #define _X_FILTER_DEFS_ #define ETH_LENGTH_OF_ADDRESS 6 // // ZZZ This is a little-endian specific check. // #define ETH_IS_MULTICAST(Address) \ (BOOLEAN)(((PUCHAR)(Address))[0] & ((UCHAR)0x01)) // // Check whether an address is broadcast. // #define ETH_IS_BROADCAST(Address) \ ((((PUCHAR)(Address))[0] == ((UCHAR)0xff)) && (((PUCHAR)(Address))[1] == ((UCHAR)0xff))) // // This macro will compare network addresses. // // A - Is a network address. // // B - Is a network address. // // Result - The result of comparing two network address. // // Result < 0 Implies the B address is greater. // Result > 0 Implies the A element is greater. // Result = 0 Implies equality. // // Note that this is an arbitrary ordering. There is not // defined relation on network addresses. This is ad-hoc! // // #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; \ } \ } // // This macro will compare network addresses. // // A - Is a network address. // // B - Is a network address. // // Result - The result of comparing two network address. // // Result != 0 Implies inequality. // Result == 0 Implies equality. // // #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; \ } \ } // // This macro is used to copy from one network address to // another. // #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 // // ZZZ This is a little-endian specific check. // #define FDDI_IS_MULTICAST(Address, AddressLength, Result) \ *Result = (BOOLEAN)(*(UCHAR *)(Address) & (UCHAR)0x01) // // Check whether the frame is SMT or not. // #define FDDI_IS_SMT(FcByte, Result) \ { \ *Result = ((FcByte & ((UCHAR)0xf0)) == 0x40); \ } // // Check whether an address is broadcast. // #define FDDI_IS_BROADCAST(Address, AddressLength, Result) \ *Result = ((*(PUCHAR)(Address) == (UCHAR)0xFF) && (*((PUCHAR)(Address)+1) == (UCHAR)0xFF)) // // This macro will compare network addresses. // // A - Is a network address. // // B - Is a network address. // // Result - The result of comparing two network address. // // Result < 0 Implies the B address is greater. // Result > 0 Implies the A element is greater. // Result = 0 Implies equality. // // Note that this is an arbitrary ordering. There is not // defined relation on network addresses. This is ad-hoc! // // #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; \ } \ } // // This macro will compare network addresses. // // A - Is a network address. // // B - Is a network address. // // Result - The result of comparing two network address. // // Result != 0 Implies inequality. // Result == 0 Implies equality. // // #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; \ } \ } // // This macro is used to copy from one network address to // another. // #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 // // Only the low 32 bits of the functional/group address // are needed since the upper 16 bits is always c0-00. // 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); \ } // // Check for NDIS_PACKET_TYPE_MAC_FRAME // #define TR_IS_MAC_FRAME(_PacketHeader) ((((PUCHAR)_PacketHeader)[1] & 0xFC) == 0) // // Check whether an address is broadcast. This is a little-endian check. // #define TR_IS_BROADCAST(_Address, _Result) \ { \ *(_Result) = (BOOLEAN)(((*(UNALIGNED USHORT *)&(_Address)[0] == 0xFFFF) || \ (*(UNALIGNED USHORT *)&(_Address)[0] == 0x00C0)) && \ (*(UNALIGNED ULONG *)&(_Address)[2] == 0xFFFFFFFF));\ } // // This macro will compare network addresses. // // A - Is a network address. // // B - Is a network address. // // Result - The result of comparing two network address. // // Result < 0 Implies the B address is greater. // Result > 0 Implies the A element is greater. // Result = 0 Implies equality. // // Note that this is an arbitrary ordering. There is not // defined relation on network addresses. This is ad-hoc! // // #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; \ } \ } // // This macro will compare network addresses. // // A - Is a network address. // // B - Is a network address. // // Result - The result of comparing two network address. // // Result != 0 Implies inequality. // Result == 0 Implies equality. // // #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; \ } \ } // // This macro is used to copy from one network address to // another. // #define TR_COPY_NETWORK_ADDRESS(_D, _S) \ { \ *((ULONG UNALIGNED *)(_D)) = *((ULONG UNALIGNED *)(_S)); \ *((USHORT UNALIGNED *)((UCHAR *)(_D)+4)) = \ *((USHORT UNALIGNED *)((UCHAR *)(_S)+4)); \ } #endif // _X_FILTER_DEFS_