net/8021q/vlan.h

   1 #ifndef __BEN_VLAN_802_1Q_INC__
   2 #define __BEN_VLAN_802_1Q_INC__
   3
   4 #include <linux/if_vlan.h>
   5
   6 #define VLAN_GRP_HASH_SHIFT     5
   7 #define VLAN_GRP_HASH_SIZE      (1 << VLAN_GRP_HASH_SHIFT)
   8 #define VLAN_GRP_HASH_MASK      (VLAN_GRP_HASH_SIZE - 1)
   9
  10 /*  Find a VLAN device by the MAC address of its Ethernet device, and
  11  *  it's VLAN ID.  The default configuration is to have VLAN's scope
  12  *  to be box-wide, so the MAC will be ignored.  The mac will only be
  13  *  looked at if we are configured to have a separate set of VLANs per
  14  *  each MAC addressable interface.  Note that this latter option does
  15  *  NOT follow the spec for VLANs, but may be useful for doing very
  16  *  large quantities of VLAN MUX/DEMUX onto FrameRelay or ATM PVCs.
  17  *
  18  *  Must be invoked with rcu_read_lock (ie preempt disabled)
  19  *  or with RTNL.
  20  */
  21 struct net_device *__find_vlan_dev(struct net_device *real_dev,
  22                                    unsigned short VID); /* vlan.c */
  23
  24 /* found in vlan_dev.c */
  25 int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
  26                   struct packet_type *ptype, struct net_device *orig_dev);
  27 void vlan_dev_set_ingress_priority(const struct net_device *dev,
  28                                    u32 skb_prio, short vlan_prio);
  29 int vlan_dev_set_egress_priority(const struct net_device *dev,
  30                                  u32 skb_prio, short vlan_prio);
  31 int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
  32 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
  33 void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result);
  34
  35 int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id);
  36 void vlan_setup(struct net_device *dev);
  37 int register_vlan_dev(struct net_device *dev);
  38 void unregister_vlan_dev(struct net_device *dev);
  39
  40 int vlan_netlink_init(void);
  41 void vlan_netlink_fini(void);
  42
  43 extern struct rtnl_link_ops vlan_link_ops;
  44
  45 static inline int is_vlan_dev(struct net_device *dev)
  46 {
  47         return dev->priv_flags & IFF_802_1Q_VLAN;
  48 }
  49
  50 extern int vlan_net_id;
  51
  52 struct proc_dir_entry;
  53
  54 struct vlan_net {
  55         /* /proc/net/vlan */
  56         struct proc_dir_entry *proc_vlan_dir;
  57         /* /proc/net/vlan/config */
  58         struct proc_dir_entry *proc_vlan_conf;
  59         /* Determines interface naming scheme. */
  60         unsigned short name_type;
  61 };
  62
  63 #endif /* !(__BEN_VLAN_802_1Q_INC__) */