44 lines
947 B
C
44 lines
947 B
C
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#ifndef ARP_PACKET_H
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#define ARP_PACKET_H
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#include <assert.h>
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#include <arpa/inet.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#include <linux/if_tun.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdint.h>
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#include "arp_packet_st.h"
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#include "util.h"
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#define IP_A_S 4
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#define OP_A_S 2
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#define SUCCESS 0
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#define FAILED -1
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#define UNEQUAL 1
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#define ARES_OP_REQ 0x0001
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#define ARES_OP_REP 0x0002
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#define ARES_HRD_ETHERNET 0x0001
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#define ETHER_T_ARP 0x0806
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#define ARES_PRO_IP 0x0800
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#define TB_L 100
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int parse_arp_packet(mac_hdr * hdr, pkt_data * pkt, uint8_t * buf, size_t size);
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int receive_arp_packet(mac_hdr * hdr, pkt_data * pkt, uint8_t * buf, size_t size, uint8_t * local_ip, uint8_t * local_mac);
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int send_arp_response(int tun_fd, uint8_t * resp_buffer, size_t length, const pkt_data * pkt, const mac_hdr * hdr);
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#endif
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