EBT_MARK_AND 9 include/uapi/linux/netfilter_bridge/ebt_mark_m.h #define EBT_MARK_MASK (EBT_MARK_AND | EBT_MARK_OR) EBT_MARK_AND 32 net/bridge/netfilter/ebt_mark_m.c if ((info->bitmask & EBT_MARK_OR) && (info->bitmask & EBT_MARK_AND))