r0 = socket$nl_generic(0x10, 0x3, 0x10) bind$netlink(r0, &(0x7f0000000540)={0x10, 0x0, 0x0, 0x4}, 0xc) sendmsg$BATADV_CMD_GET_MCAST_FLAGS(r0, &(0x7f0000000ac0)={&(0x7f0000000a00)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000a80)={&(0x7f0000000a40)={0x14}, 0x14}}, 0x0)