linux/net/8021q/vlan.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __BEN_VLAN_802_1Q_INC__
#define __BEN_VLAN_802_1Q_INC__

#include <linux/if_vlan.h>
#include <linux/u64_stats_sync.h>
#include <linux/list.h>

/* if this changes, algorithm will have to be reworked because this
 * depends on completely exhausting the VLAN identifier space.  Thus
 * it gives constant time look-up, but in many cases it wastes memory.
 */
#define VLAN_GROUP_ARRAY_SPLIT_PARTS …
#define VLAN_GROUP_ARRAY_PART_LEN …

enum vlan_protos { … };

struct vlan_group { … };

struct vlan_info { … };

static inline int vlan_proto_idx(__be16 proto)
{ … }

static inline struct net_device *__vlan_group_get_device(struct vlan_group *vg,
							 unsigned int pidx,
							 u16 vlan_id)
{ … }

static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
						       __be16 vlan_proto,
						       u16 vlan_id)
{ … }

static inline void vlan_group_set_device(struct vlan_group *vg,
					 __be16 vlan_proto, u16 vlan_id,
					 struct net_device *dev)
{ … }

/* Must be invoked with rcu_read_lock or with RTNL. */
static inline struct net_device *vlan_find_dev(struct net_device *real_dev,
					       __be16 vlan_proto, u16 vlan_id)
{ … }

static inline netdev_features_t vlan_tnl_features(struct net_device *real_dev)
{ … }

#define vlan_group_for_each_dev(grp, i, dev) …

int vlan_filter_push_vids(struct vlan_info *vlan_info, __be16 proto);
void vlan_filter_drop_vids(struct vlan_info *vlan_info, __be16 proto);

/* found in vlan_dev.c */
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);
void vlan_dev_free_egress_priority(const struct net_device *dev);
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,
			       size_t size);

int vlan_check_real_dev(struct net_device *real_dev,
			__be16 protocol, u16 vlan_id,
			struct netlink_ext_ack *extack);
void vlan_setup(struct net_device *dev);
int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack);
void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
bool vlan_dev_inherit_address(struct net_device *dev,
			      struct net_device *real_dev);

static inline u32 vlan_get_ingress_priority(struct net_device *dev,
					    u16 vlan_tci)
{ … }

#ifdef CONFIG_VLAN_8021Q_GVRP
int vlan_gvrp_request_join(const struct net_device *dev);
void vlan_gvrp_request_leave(const struct net_device *dev);
int vlan_gvrp_init_applicant(struct net_device *dev);
void vlan_gvrp_uninit_applicant(struct net_device *dev);
int vlan_gvrp_init(void);
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

#ifdef CONFIG_VLAN_8021Q_MVRP
int vlan_mvrp_request_join(const struct net_device *dev);
void vlan_mvrp_request_leave(const struct net_device *dev);
int vlan_mvrp_init_applicant(struct net_device *dev);
void vlan_mvrp_uninit_applicant(struct net_device *dev);
int vlan_mvrp_init(void);
void vlan_mvrp_uninit(void);
#else
static inline int vlan_mvrp_request_join(const struct net_device *dev) { return 0; }
static inline void vlan_mvrp_request_leave(const struct net_device *dev) {}
static inline int vlan_mvrp_init_applicant(struct net_device *dev) { return 0; }
static inline void vlan_mvrp_uninit_applicant(struct net_device *dev) {}
static inline int vlan_mvrp_init(void) { return 0; }
static inline void vlan_mvrp_uninit(void) {}
#endif

extern const char vlan_fullname[];
extern const char vlan_version[];
int vlan_netlink_init(void);
void vlan_netlink_fini(void);

extern struct rtnl_link_ops vlan_link_ops;

extern unsigned int vlan_net_id;

struct proc_dir_entry;

struct vlan_net { … };

#endif /* !(__BEN_VLAN_802_1Q_INC__) */