EBT_ARP_HTYPE 12 include/linux/netfilter_bridge/ebt_arp.h #define EBT_ARP_MASK (EBT_ARP_OPCODE | EBT_ARP_HTYPE | EBT_ARP_PTYPE | \ EBT_ARP_HTYPE 31 net/bridge/netfilter/ebt_arp.c if (info->bitmask & EBT_ARP_HTYPE && FWINV(info->htype != EBT_ARP_HTYPE 32 net/bridge/netfilter/ebt_arp.c ah->ar_hrd, EBT_ARP_HTYPE))