diff options
Diffstat (limited to 'net/8021q/vlan.h')
| -rw-r--r-- | net/8021q/vlan.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h new file mode 100644 index 0000000..a6603a4 --- /dev/null +++ b/net/8021q/vlan.h @@ -0,0 +1,134 @@ +#ifndef __BEN_VLAN_802_1Q_INC__ +#define __BEN_VLAN_802_1Q_INC__ + +#include <linux/if_vlan.h> + + +/** + * struct vlan_priority_tci_mapping - vlan egress priority mappings + * @priority: skb priority + * @vlan_qos: vlan priority: (skb->priority << 13) & 0xE000 + * @next: pointer to next struct + */ +struct vlan_priority_tci_mapping { + u32 priority; + u16 vlan_qos; + struct vlan_priority_tci_mapping *next; +}; + +/** + * struct vlan_dev_info - VLAN private device data + * @nr_ingress_mappings: number of ingress priority mappings + * @ingress_priority_map: ingress priority mappings + * @nr_egress_mappings: number of egress priority mappings + * @egress_priority_map: hash of egress priority mappings + * @vlan_id: VLAN identifier + * @flags: device flags + * @real_dev: underlying netdevice + * @real_dev_addr: address of underlying netdevice + * @dent: proc dir entry + * @cnt_inc_headroom_on_tx: statistic - number of skb expansions on TX + * @cnt_encap_on_xmit: statistic - number of skb encapsulations on TX + */ +struct vlan_dev_info { + unsigned int nr_ingress_mappings; + u32 ingress_priority_map[8]; + unsigned int nr_egress_mappings; + struct vlan_priority_tci_mapping *egress_priority_map[16]; + + u16 vlan_id; + u16 flags; + + struct net_device *real_dev; + unsigned char real_dev_addr[ETH_ALEN]; + + struct proc_dir_entry *dent; + unsigned long cnt_inc_headroom_on_tx; + unsigned long cnt_encap_on_xmit; +}; + +static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev) +{ + return netdev_priv(dev); +} + +#define VLAN_GRP_HASH_SHIFT 5 +#define VLAN_GRP_HASH_SIZE (1 << VLAN_GRP_HASH_SHIFT) +#define VLAN_GRP_HASH_MASK (VLAN_GRP_HASH_SIZE - 1) + +/* Find a VLAN device by the MAC address of its Ethernet device, and + * it's VLAN ID. The default configuration is to have VLAN's scope + * to be box-wide, so the MAC will be ignored. The mac will only be + * looked at if we are configured to have a separate set of VLANs per + * each MAC addressable interface. Note that this latter option does + * NOT follow the spec for VLANs, but may be useful for doing very + * large quantities of VLAN MUX/DEMUX onto FrameRelay or ATM PVCs. + * + * Must be invoked with rcu_read_lock (ie preempt disabled) + * or with RTNL. + */ +struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id); + +/* found in vlan_dev.c */ +int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *ptype, struct net_device *orig_dev); +void vlan_dev_set_ingress_priority(const struct net_device *dev, + u32 skb_prio, u16 vlan_prio); +int vlan_dev_set_egress_priority(const struct net_device *dev, + u32 skb_prio, u16 vlan_prio); +int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask); +void vlan_dev_get_realdev_name(const struct net_device *dev, char *result); + +int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id); +void vlan_setup(struct net_device *dev); +int register_vlan_dev(struct net_device *dev); +void unregister_vlan_dev(struct net_device *dev); + +static inline u32 vlan_get_ingress_priority(struct net_device *dev, + u16 vlan_tci) +{ + struct vlan_dev_info *vip = vlan_dev_info(dev); + + return vip->ingress_priority_map[(vlan_tci >> 13) & 0x7]; +} + +#ifdef CONFIG_VLAN_8021Q_GVRP +extern int vlan_gvrp_request_join(const struct net_device *dev); +extern void vlan_gvrp_request_leave(const struct net_device *dev); +extern int vlan_gvrp_init_applicant(struct net_device *dev); +extern void vlan_gvrp_uninit_applicant(struct net_device *dev); +extern int vlan_gvrp_init(void); +extern void vlan_gvrp_uninit(void); +#else +static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; } +static inline void vlan_gvrp_request_leave(const struct net_device *dev) {} +static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; } +static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {} +static inline int vlan_gvrp_init(void) { return 0; } +static inline void vlan_gvrp_uninit(void) {} +#endif + +int vlan_netlink_init(void); +void vlan_netlink_fini(void); + +extern struct rtnl_link_ops vlan_link_ops; + +static inline int is_vlan_dev(struct net_device *dev) +{ + return dev->priv_flags & IFF_802_1Q_VLAN; +} + +extern int vlan_net_id; + +struct proc_dir_entry; + +struct vlan_net { + /* /proc/net/vlan */ + struct proc_dir_entry *proc_vlan_dir; + /* /proc/net/vlan/config */ + struct proc_dir_entry *proc_vlan_conf; + /* Determines interface naming scheme. */ + unsigned short name_type; +}; + +#endif /* !(__BEN_VLAN_802_1Q_INC__) */ |
