1 #ifndef __BEN_VLAN_802_1Q_INC__
2 #define __BEN_VLAN_802_1Q_INC__
3
4 #include <linux/if_vlan.h>
5
6
7 /**
8 * struct vlan_priority_tci_mapping - vlan egress priority mappings
9 * @priority: skb priority
10 * @vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
11 * @next: pointer to next struct
12 */
13 struct vlan_priority_tci_mapping {
14 u32 priority;
15 u16 vlan_qos;
16 struct vlan_priority_tci_mapping *next;
17 };
18
19 /**
20 * struct vlan_dev_info - VLAN private device data
21 * @nr_ingress_mappings: number of ingress priority mappings
22 * @ingress_priority_map: ingress priority mappings
23 * @nr_egress_mappings: number of egress priority mappings
24 * @egress_priority_map: hash of egress priority mappings
25 * @vlan_id: VLAN identifier
26 * @flags: device flags
27 * @real_dev: underlying netdevice
28 * @real_dev_addr: address of underlying netdevice
29 * @dent: proc dir entry
30 * @cnt_inc_headroom_on_tx: statistic - number of skb expansions on TX
31 * @cnt_encap_on_xmit: statistic - number of skb encapsulations on TX
32 */
33 struct vlan_dev_info {
34 unsigned int nr_ingress_mappings;
35 u32 ingress_priority_map[8];
36 unsigned int nr_egress_mappings;
37 struct vlan_priority_tci_mapping *egress_priority_map[16];
38
39 u16 vlan_id;
40 u16 flags;
41
42 struct net_device *real_dev;
43 unsigned char real_dev_addr[ETH_ALEN];
44
45 struct proc_dir_entry *dent;
46 unsigned long cnt_inc_headroom_on_tx;
47 unsigned long cnt_encap_on_xmit;
48 };
49
50 static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
51 {
52 return netdev_priv(dev);
53 }
54
55 #define VLAN_GRP_HASH_SHIFT 5
56 #define VLAN_GRP_HASH_SIZE (1 << VLAN_GRP_HASH_SHIFT)
57 #define VLAN_GRP_HASH_MASK (VLAN_GRP_HASH_SIZE - 1)
58
59 /* Find a VLAN device by the MAC address of its Ethernet device, and
60 * it's VLAN ID. The default configuration is to have VLAN's scope
61 * to be box-wide, so the MAC will be ignored. The mac will only be
62 * looked at if we are configured to have a separate set of VLANs per
63 * each MAC addressable interface. Note that this latter option does
64 * NOT follow the spec for VLANs, but may be useful for doing very
65 * large quantities of VLAN MUX/DEMUX onto FrameRelay or ATM PVCs.
66 *
67 * Must be invoked with rcu_read_lock (ie preempt disabled)
68 * or with RTNL.
69 */
70 struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id);
71
72 /* found in vlan_dev.c */
73 int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
74 struct packet_type *ptype, struct net_device *orig_dev);
75 void vlan_dev_set_ingress_priority(const struct net_device *dev,
76 u32 skb_prio, u16 vlan_prio);
77 int vlan_dev_set_egress_priority(const struct net_device *dev,
78 u32 skb_prio, u16 vlan_prio);
79 int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
80 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
81
82 int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id);
83 void vlan_setup(struct net_device *dev);
84 int register_vlan_dev(struct net_device *dev);
85 void unregister_vlan_dev(struct net_device *dev);
86
87 static inline u32 vlan_get_ingress_priority(struct net_device *dev,
88 u16 vlan_tci)
89 {
90 struct vlan_dev_info *vip = vlan_dev_info(dev);
91
92 return vip->ingress_priority_map[(vlan_tci >> 13) & 0x7];
93 }
94
95 #ifdef CONFIG_VLAN_8021Q_GVRP
96 extern int vlan_gvrp_request_join(const struct net_device *dev);
97 extern void vlan_gvrp_request_leave(const struct net_device *dev);
98 extern int vlan_gvrp_init_applicant(struct net_device *dev);
99 extern void vlan_gvrp_uninit_applicant(struct net_device *dev);
100 extern int vlan_gvrp_init(void);
101 extern void vlan_gvrp_uninit(void);
102 #else
103 static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
104 static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
105 static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; }
106 static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {}
107 static inline int vlan_gvrp_init(void) { return 0; }
108 static inline void vlan_gvrp_uninit(void) {}
109 #endif
110
111 extern const char vlan_fullname[];
112 extern const char vlan_version[];
113 extern int vlan_netlink_init(void);
114 extern void vlan_netlink_fini(void);
115
116 extern struct rtnl_link_ops vlan_link_ops;
117
118 static inline int is_vlan_dev(struct net_device *dev)
119 {
120 return dev->priv_flags & IFF_802_1Q_VLAN;
121 }
122
123 extern int vlan_net_id;
124
125 struct proc_dir_entry;
126
127 struct vlan_net {
128 /* /proc/net/vlan */
129 struct proc_dir_entry *proc_vlan_dir;
130 /* /proc/net/vlan/config */
131 struct proc_dir_entry *proc_vlan_conf;
132 /* Determines interface naming scheme. */
133 unsigned short name_type;
134 };
135
136 #endif /* !(__BEN_VLAN_802_1Q_INC__) */
137
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