#ifndef ETHERLIB_ETH_INTERFACE_H
#define ETHERLIB_ETH_INTERFACE_H

#include "packet_sieve.h"
#include "prefab/packet_parsers/packet_parsers.h"
#include "prefab/packet_parsers/ipv4_types.h"
#include "arp_cache.h"
#include "connection_block.h"
#include "msg_queue.h"

/**
 * Ethernet interface low level definition.
 */
typedef struct EthIODef_ {
    int (*llTxTrigger)(struct EthIODef_ * io, MsgQueue * mq); ///< Function pointer to low-level transmit function trigger
    int (*llTxDone)(struct EthIODef_ * io, const RawPckt * rawPckt); ///< Transmission done (interrupt) callback
    int (*llLinkChg)(struct EthIODef_ * io, int linkState); ///< Link change interrupt
    int (*llRxDone)(struct EthIODef_ * io, const RawPckt * rawPckt); ///< Receive done callback
    int (*llError)(struct EthIODef_ * io, int error); ///< Low-level error interrupt
    void * tag; ///< Some arbitrary tagging

} EthIODef;

/**
 * Ethernet interface representation.
 */
typedef struct EthInterface_ {
    PcktSieve sieve; ///< Packet sieve
    EthIODef * ioDef; ///< Low-level IO definitions
    EthernetAddress mac; ///< Ethernet address
    ip4_addr ip; ///< IP address
    ip4_addr router; ///< Router IP address
    ip4_addr netmask; ///< Subnet mask
    ip4_addr dns; ///< Domain Name Server
    ArpCache * arpc; ///< ARP cache
    ConnBlock arpCb; ///< ARP connection block
    MsgQueue * txQ; ///< Transmit queue
} EthInterface;

/**
 * Allocate a new Ethernet interface
 * @param io Low-level IO definitions
 * @return new interface instance
 */
EthInterface *ethintf_new(EthIODef * io);

/**
 * Receive uncooked packet.
 * @param rawPckt
 */
void ethinf_receive(EthInterface *intf, const RawPckt *rawPckt);

/**
 * Transmit packet.
 */
void ethinf_transmit(EthInterface *intf, const RawPckt *rawPckt);

#endif //ETHERLIB_ETH_INTERFACE_H