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I'm not a net module developer, I wander that can I use netlink mechanism to modify rule/route in my own kernel module?
Just like the following command does
ip route add to 192.168.11.11 table 20 or
ip route delete to 192.168.11.11

I looked up some sources, most of which are analyzing the communication between the kernel level and the user level, and related codes are little in kernel. I just know how to use netlink_kernel_create to create socket in kernel, but don't know how to modify route at all. Do you have any suggested sources or information or something?
Looking forward for your reply!