r0 = socket$nl_generic(0x10, 0x3, 0x10)
getpeername(r0, &(0x7f0000000280)=@rxrpc=@in6={0x21, 0x0, 0x2, 0x1c, {0xa, 0x0, 0x0, @loopback}}, &(0x7f0000000300)=0x80)