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/** @addtogroup net
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/** @addtogroup net
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 *  @{
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 *  @{
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 */
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 */
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/** @file
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/** @file
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 *  General CRC computation.
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 *  General CRC and checksum computation.
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 */
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 */
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#ifndef __NET_CRC_H__
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#ifndef __NET_CRC_H__
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#define __NET_CRC_H__
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#define __NET_CRC_H__
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 *  @param length Length of the data in bits. Input parameter.
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 *  @param length Length of the data in bits. Input parameter.
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 *  @returns The computed CRC32 of the length bits of the data.
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 *  @returns The computed CRC32 of the length bits of the data.
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 */
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 */
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uint32_t    compute_crc32_be( uint32_t seed, uint8_t * data, int length );
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uint32_t    compute_crc32_be( uint32_t seed, uint8_t * data, int length );
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/** Computes sum of the 2 byte fields.
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 *  Padds one zero (0) byte if odd.
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 *  @param seed Initial value. Often used as 0 or ~0. Input parameter.
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 *  @param data Pointer to the beginning of data to process. Input parameter.
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 *  @param length Length of the data in bytes. Input parameter.
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 *  @returns The computed checksum of the length bytes of the data.
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 */
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uint32_t    compute_checksum( uint32_t seed, uint8_t * data, int length );
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/** Compacts the computed checksum to the 16 bit number adding the carries.
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 *  @param Computed checksum. Input parameter.
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 *  @returns Compacted computed checksum to the 16 bits.
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 */
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uint16_t    compact_checksum( uint32_t sum );
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */