常用数据包结构体

最新推荐文章于 2024-02-28 20:09:01 发布

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最新推荐文章于 2024-02-28 20:09:01 发布

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分类专栏： LINUX 文章标签：结构数据以太网 typedef

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/*以太网帧头格式结构体 14个字节*/  
typedef struct ether_header{  
    unsigned char ether_dhost[6];  
    unsigned char ether_shost[6];  
    unsigned short ether_type;  
}ETHERHEADER,*PETHERHEADER;  

/*以ARP字段结构体 28个字节*/  
typedef struct arp_header{  
    unsigned short arp_hrd;  
    unsigned short arp_pro;  
    unsigned char arp_hln;  
    unsigned char arp_pln;  
    unsigned short arp_op;  
    unsigned char arp_sourha[6];  
    unsigned long arp_sourpa;  
    unsigned char arp_destha[6];  
    unsigned long arp_destpa;  
}ARPHEADER,*PARPHEADER;  

/*ARP报文结构体 42个字节*/  
typedef struct arp_packet{  
    ETHERHEADER etherHeader;  
    ARPHEADER   arpHeader;  
}ARPPACKET,*PARPPACKET;  

/*IPv4报头结构体 20个字节*/  
typedef struct ipv4_header{  
    unsigned char ipv4_ver_hl;  
    unsigned char ipv4_stype;  
    unsigned short ipv4_plen;  
    unsigned short ipv4_pidentify;  
    unsigned short ipv4_flag_offset;  
    unsigned char ipv4_ttl;  
    unsigned char ipv4_pro;  
    unsigned short ipv4_crc;  
    unsigned long  ipv4_sourpa;  
    unsigned long  ipv4_destpa;  
}IPV4HEADER,*PIPV4HEADER;  
/*  
ipv4_pro字段：  
＃define PROTOCOL_ICMP   0x01  
＃define PROTOCOL_IGMP   0x02  
＃define PROTOCOL_TCP    0x06  
＃define PROTOCOL_UDP    0x11  
*/           


/*IPv6报头结构体 40个字节*/  
typedef struct ipv6_header{  
    u_char ipv6_ver_hl;  
    u_char ipv6_priority;  
    u_short ipv6_lable;  
    u_short ipv6_plen;  
    u_char  ipv6_nextheader;  
    u_char  ipv6_limits;  
    u_char ipv6_sourpa[16];  
    u_char ipv6_destpa[16];  
}IPV6HEADER,*PIPV6HEADER;  

/*TCP报头结构体 20个字节*/  
typedef struct tcp_header{  
    u_short tcp_sourport;  
    u_short tcp_destport;  
    u_long  tcp_seqnu;  
    u_logn  tcp_acknu;  
    u_char  tcp_hlen;  
    u_char  tcp_reserved;  
    u_short tcp_window;  
    u_short tcp_chksum;  
    u_short tcp_urgpoint;  
}TCPHEADER,*PTCPHEADER;  

/*UDP报头结构体 8个字节*/  
typedef struct udp_header{  
    u_short udp_sourport;  
    u_short udp_destport;  
    u_short udp_hlen;  
    u_short udp_crc;  
}UDPHEADER,*PUDPHEADER;  




然后发现： linux的头文件里面有包含这个些，具体看一看inet/ip.h~~