58 lines
1 KiB
C
58 lines
1 KiB
C
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#ifndef NPACK_H
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#define NPACK_H
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#include <stdint.h>
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#include <netinet/ip.h>
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#include <netinet/in.h>
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#define DEFAULT_INTERFACE "enp0s3"
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#define MY_DEST_MAC0 0x01
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#define MY_DEST_MAC1 0x01
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#define MY_DEST_MAC2 0x01
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#define MY_DEST_MAC3 0x01
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#define MY_DEST_MAC4 0x01
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#define MY_DEST_MAC5 0x01
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#define MY_DEST_IP "192.168.0.111"
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#define MY_SRC_PORT 2134
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#define MY_DEST_PORT 3456
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#define MY_SEQ_NUMBER 4253
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#define BUF_SIZ 2048
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struct sockaddr_ll
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{
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unsigned short sll_family;
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unsigned short sll_protocol;
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int sll_ifindex;
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unsigned short sll_hatype;
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unsigned char sll_pkttype;
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unsigned char sll_halen;
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unsigned char sll_addr[8];
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};
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struct pseudo_hdr
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{
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uint32_t saddr;
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uint32_t daddr;
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uint8_t zeros;
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uint8_t protocol;
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uint16_t tot_len;
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};
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typedef enum
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{
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TCP = IPPROTO_TCP,
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UDP = IPPROTO_UDP
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} protocol;
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unsigned short s_csum(unsigned short*, int);
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unsigned short l_csum(struct iphdr*, void*, int);
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uint16_t calc_ip_size(uint16_t);
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uint16_t calc_ip_csum(char*);
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uint16_t calc_udp_size(uint16_t);
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uint16_t calc_tr_csum(char*, uint16_t);
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#endif
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