struct udphdr

udphdr structure comprises /usr/src/linux/include/linux/udp.h

 struct udphdr {
        __u16   source;
        __u16   dest;
        __u16   len;
        __u16   check;
 };

 

udphdr->source

       16-bit source port

udphdr->dest

       16-bit destination port

udphdr->len

       It represents the length of the transmitted datagram, 16

udphdr->check

       Checksum

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Origin www.cnblogs.com/wanghao-boke/p/11669824.html