2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS TCP/IP protocol driver
4 * FILE: include/checksum.h
5 * PURPOSE: Checksum routine definitions
14 ULONG
ChecksumCompute(
21 const unsigned char * buff
,
26 UDPv4ChecksumCalculate(
27 PIPv4_HEADER IPHeader
,
31 #define IPv4Checksum(Data, Count, Seed)(~ChecksumFold(ChecksumCompute(Data, Count, Seed)))
32 #define TCPv4Checksum(Data, Count, Seed)(~ChecksumFold(csum_partial(Data, Count, Seed)))
33 //#define TCPv4Checksum(Data, Count, Seed)(~ChecksumFold(ChecksumCompute(Data, Count, Seed)))
36 * Macro to check for a correct checksum
37 * BOOLEAN IPv4CorrectChecksum(PVOID Data, UINT Count)
39 #define IPv4CorrectChecksum(Data, Count) \
40 (BOOLEAN)(IPv4Checksum(Data, Count, 0) == DH2N(0x0000FFFF))
43 * Macro to check for a correct checksum
44 * BOOLEAN TCPv4CorrectChecksum(PTCPv4_PSEUDO_HEADER TcpPseudoHeader,
45 * PVOID Data, UINT Count)
47 #define TCPv4CorrectChecksum(TcpPseudoHeader, Data, Count) \
48 (BOOLEAN)(TCPv4Checksum(Data, Count, \
49 TCPv4Checksum(TcpPseudoHeader, sizeof(TCPv4_PSEUDO_HEADER), \
50 0)) == DH2N(0x0000FFFF))
52 #endif /* __CHECKSUM_H */