r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000480)={&(0x7f00000001c0)={0x20, 0x1d, 0xc21, 0x0, 0x0, {0x4, 0x0, 0x2}, [@nested={0xc, 0x9, 0x0, 0x1, [@typed={0x8, 0x0, 0x0, 0x0, @ipv4=@dev}]}]}, 0x20}}, 0x0)