Netlink Sockets: Addind a new socket family

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  • Kernel version 3.13, Ubuntu 14.04
  • $ uname -a
    Linux ubuntu 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  • We need two changes:
  • User space
    • Locate the file “netlink.h”
    • $ sudo locate “netlink.h”
    • You would get the header file at “/usr/include/linux/netlink.h”
    • Add the new family
    • #define NETLINK_MY     17
    • Keep the number less than 32
    • In you user application, add “#define NELINK_MY 17″
  • Kernel space
    • Locate the netlikn file for kernel space
    • /usr/src/linux-headers-3.13.0-24/include/uapi/linux/netlink.h
    • Add exact definition here as well
  • No recompilation of kernel is required.
  • References:
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