#ifndef ETHERLIB_UDP_PACKET_H
#define ETHERLIB_UDP_PACKET_H

#include <stdint.h>
#include "../../packet_registry.h"
#include "../../packet_sieve.h"

#define ETH_UDP_PACKET_CLASS (17)
#define ETH_UDP_HEADER_SIZE (8)

/**
 * @struct UdpProps
 * UDP packet properties.
 */
typedef struct {
    PcktPropsHeader

    uint16_t SourcePort; ///> source port
    uint16_t DestinationPort; ///> destination port
    uint16_t Length; ///> packet size
    uint16_t Checksum; ///> UDP checksum
} UdpProps;

struct EthInterface_;

/**
 * Parse raw UDP packets.
 * @param hdr pointer to the UDP packet header
 * @param size total packet size
 * @param pcktHdrLe pointer to property storage
 * @return 0 on success or -1 on failure
 */
int parse_udp(const uint8_t *hdr, uint32_t size, PcktHeaderElement *pcktHdrLe, struct EthInterface_ *intf, PcktProcFnPassbackData *pb);

/**
 * Insert UDP header.
 * @param hdr space where the header is to be inserted
 * @param headers linked list of header, top is always relevant
 */
void insert_udp_header(uint8_t * hdr, const PcktHeaderElement * headers);

#endif //ETHERLIB_UDP_PACKET_H