Wiesner András
ac5fc9c529
-PcktSieve special return functionality added -ARP multicast learning bug fixed -include guards have been refactored -Doxygen style tweaked
24 lines
554 B
C
24 lines
554 B
C
#ifndef ETHERLIB_TCP_UDP_COMMON_H
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#define ETHERLIB_TCP_UDP_COMMON_H
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#include <stdint.h>
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typedef struct {
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uint32_t sourceIpAddr;
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uint32_t destIpAddr;
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uint8_t zero;
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uint8_t protocol;
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uint16_t udpLength;
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} IPv4PseudoHeader;
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/**
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* Calculate TCP or UDP checksum.
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* @param pseudoHeader pointer to IPv4 pseudo-header
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* @param hdr pointer to data
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* @param size size of data
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* @return checksum
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*/
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uint16_t tcp_udp_checksum(const IPv4PseudoHeader *pseudoHeader, const uint8_t * hdr, uint32_t size);
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#endif //ETHERLIB_TCP_UDP_COMMON_H
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