45 lines
2.1 KiB
C
45 lines
2.1 KiB
C
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#ifndef _CONSTRUCT_PACKET_H
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#define _CONSTRUCT_PACKET_H
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#ifdef __cpluscplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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#include <sys/types.h>
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#define TCP_URG_FLAG 0x20
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#define TCP_ACK_FLAG 0x10
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#define TCP_PSH_FLAG 0x08
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#define TCP_RST_FLAG 0x04
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#define TCP_SYN_FLAG 0x02
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#define TCP_FIN_FLAG 0x01
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#define TCP_FLAG_ALL 0x3F
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int tcp_header_construct(char *buffer, uint16_t src_port, uint16_t dst_port, uint32_t seq, uint32_t ack, u_char flags, uint16_t window, uint16_t urgent);
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int ipv4_header_construct(char *buffer, uint16_t carry_layer_len, struct in_addr *src_addr, struct in_addr *dst_addr, u_char tos, uint16_t id, uint16_t frag, u_char ttl, u_char protocol);
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int ipv6_header_construct(char *buffer, uint16_t carry_layer_len, struct in6_addr *src_addr, struct in6_addr *dst_addr, u_char ttl, u_char protocol);
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int vlan_header_construct(char *buffer, uint16_t tci, uint16_t type);
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int ether_header_construct(char *buffer, struct ether_addr *src_mac, struct ether_addr *dst_mac, uint16_t type);
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int tcp_packet_v4_construct(
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char *buffer, // buffer
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struct ether_addr *src_mac, struct ether_addr *dst_mac, uint16_t vlan_tci, uint16_t l3_protocol, // Ether
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struct in_addr *src_addr, struct in_addr *dst_addr, u_char tos, u_char ttl, uint16_t id, // IPv4
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uint16_t src_port, uint16_t dst_port, uint32_t seq, uint32_t ack, u_char flags, uint16_t window, // TCP
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const char *payload, uint16_t payload_len);
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int tcp_packet_v6_construct(
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char *buffer, // buffer
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struct ether_addr *src_mac, struct ether_addr *dst_mac, uint16_t vlan_tci, uint16_t l3_protocol, // Ether
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struct in6_addr *src_addr, struct in6_addr *dst_addr, u_char ttl, // IPv6
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uint16_t src_port, uint16_t dst_port, uint32_t seq, uint32_t ack, u_char flags, uint16_t window, // TCP
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const char *payload, uint16_t payload_len);
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#ifdef __cpluscplus
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}
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#endif
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#endif
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