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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __BEN_VLAN_802_1Q_INC__
2#define __BEN_VLAN_802_1Q_INC__
3
4#include <linux/if_vlan.h>
5
Patrick McHardy22d1ba72008-07-08 03:23:57 -07006
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 */
13struct vlan_priority_tci_mapping {
14 u32 priority;
Patrick McHardy9bb85822008-07-08 03:24:44 -070015 u16 vlan_qos;
Patrick McHardy22d1ba72008-07-08 03:23:57 -070016 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 */
33struct 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
Patrick McHardy9bb85822008-07-08 03:24:44 -070039 u16 vlan_id;
40 u16 flags;
Patrick McHardy22d1ba72008-07-08 03:23:57 -070041
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
50static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
51{
52 return netdev_priv(dev);
53}
54
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#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 */
Patrick McHardy9bb85822008-07-08 03:24:44 -070070struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72/* found in vlan_dev.c */
Linus Torvalds1da177e2005-04-16 15:20:36 -070073int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
YOSHIFUJI Hideaki122952f2007-02-09 23:24:25 +090074 struct packet_type *ptype, struct net_device *orig_dev);
Patrick McHardyc17d8872007-06-13 12:05:22 -070075void vlan_dev_set_ingress_priority(const struct net_device *dev,
Patrick McHardy9bb85822008-07-08 03:24:44 -070076 u32 skb_prio, u16 vlan_prio);
Patrick McHardyc17d8872007-06-13 12:05:22 -070077int vlan_dev_set_egress_priority(const struct net_device *dev,
Patrick McHardy9bb85822008-07-08 03:24:44 -070078 u32 skb_prio, u16 vlan_prio);
Patrick McHardyb3ce0322008-07-05 21:26:27 -070079int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
Patrick McHardyc17d8872007-06-13 12:05:22 -070080void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
Patrick McHardy9bb85822008-07-08 03:24:44 -070082int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id);
Patrick McHardy07b5b172007-06-13 12:07:54 -070083void vlan_setup(struct net_device *dev);
84int register_vlan_dev(struct net_device *dev);
Patrick McHardyaf301512008-01-21 00:25:50 -080085void unregister_vlan_dev(struct net_device *dev);
Patrick McHardy07b5b172007-06-13 12:07:54 -070086
Patrick McHardy7750f402008-07-08 03:23:36 -070087static inline u32 vlan_get_ingress_priority(struct net_device *dev,
Patrick McHardy9bb85822008-07-08 03:24:44 -070088 u16 vlan_tci)
Patrick McHardy7750f402008-07-08 03:23:36 -070089{
90 struct vlan_dev_info *vip = vlan_dev_info(dev);
91
Patrick McHardy9bb85822008-07-08 03:24:44 -070092 return vip->ingress_priority_map[(vlan_tci >> 13) & 0x7];
Patrick McHardy7750f402008-07-08 03:23:36 -070093}
94
Patrick McHardy70c03b42008-07-05 21:26:57 -070095#ifdef CONFIG_VLAN_8021Q_GVRP
96extern int vlan_gvrp_request_join(const struct net_device *dev);
97extern void vlan_gvrp_request_leave(const struct net_device *dev);
98extern int vlan_gvrp_init_applicant(struct net_device *dev);
99extern void vlan_gvrp_uninit_applicant(struct net_device *dev);
100extern int vlan_gvrp_init(void);
101extern void vlan_gvrp_uninit(void);
102#else
103static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
104static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
105static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; }
106static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {}
107static inline int vlan_gvrp_init(void) { return 0; }
108static inline void vlan_gvrp_uninit(void) {}
109#endif
110
Patrick McHardy07b5b172007-06-13 12:07:54 -0700111int vlan_netlink_init(void);
112void vlan_netlink_fini(void);
113
114extern struct rtnl_link_ops vlan_link_ops;
115
Pavel Emelyanov802fb172008-04-02 00:08:01 -0700116static inline int is_vlan_dev(struct net_device *dev)
117{
118 return dev->priv_flags & IFF_802_1Q_VLAN;
119}
120
Pavel Emelyanovd9ed0f02008-04-16 00:49:09 -0700121extern int vlan_net_id;
122
Pavel Emelyanova59a8c12008-04-16 00:51:51 -0700123struct proc_dir_entry;
124
Pavel Emelyanovd9ed0f02008-04-16 00:49:09 -0700125struct vlan_net {
Pavel Emelyanova59a8c12008-04-16 00:51:51 -0700126 /* /proc/net/vlan */
127 struct proc_dir_entry *proc_vlan_dir;
128 /* /proc/net/vlan/config */
129 struct proc_dir_entry *proc_vlan_conf;
Pavel Emelyanov7a17a2f2008-04-16 00:54:39 -0700130 /* Determines interface naming scheme. */
131 unsigned short name_type;
Pavel Emelyanovd9ed0f02008-04-16 00:49:09 -0700132};
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134#endif /* !(__BEN_VLAN_802_1Q_INC__) */