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/* Copyright (c) 2008 Victor Julien <victor@inliniac.net> */
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#ifndef __DECODE_UDP_H__
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#define __DECODE_UDP_H__
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#define UDP_HEADER_LEN 8
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/* XXX RAW* needs to be really 'raw', so no ntohs there */
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#define UDP_GET_RAW_LEN(udph) ntohs((udph)->uh_len)
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#define UDP_GET_RAW_SRC_PORT(udph) ntohs((udph)->uh_sport)
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#define UDP_GET_RAW_DST_PORT(udph) ntohs((udph)->uh_dport)
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#define UDP_GET_LEN(p) UDP_GET_RAW_LEN(p->udph)
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#define UDP_GET_SRC_PORT(p) UDP_GET_RAW_SRC_PORT(p->udph)
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#define UDP_GET_DST_PORT(p) UDP_GET_RAW_DST_PORT(p->udph)
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/* UDP header structure */
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typedef struct UDPHdr_
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{
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uint16_t uh_sport; /* source port */
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uint16_t uh_dport; /* destination port */
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uint16_t uh_len; /* length */
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uint16_t uh_sum; /* checksum */
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} UDPHdr;
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typedef struct UDPVars_
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{
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uint8_t hlen;
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} UDPVars;
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typedef struct UDPCache_ {
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/* checksum computed over the udp(for both ipv4 and ipv6) packet */
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int32_t comp_csum;
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} UDPCache;
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inline uint16_t UDPV4CalculateChecksum(uint16_t *, uint16_t *, uint16_t);
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inline uint16_t UDPV6CalculateChecksum(uint16_t *, uint16_t *, uint16_t);
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void DecodeUDPV4RegisterTests(void);
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#endif /* __DECODE_UDP_H__ */
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