linux/net/bridge/br_vlan_tunnel.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *	Bridge per vlan tunnel port dst_metadata handling code
 *
 *	Authors:
 *	Roopa Prabhu		<[email protected]>
 */

#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/slab.h>
#include <net/switchdev.h>
#include <net/dst_metadata.h>

#include "br_private.h"
#include "br_private_tunnel.h"

static inline int br_vlan_tunid_cmp(struct rhashtable_compare_arg *arg,
				    const void *ptr)
{ … }

static const struct rhashtable_params br_vlan_tunnel_rht_params = …;

static struct net_bridge_vlan *br_vlan_tunnel_lookup(struct rhashtable *tbl,
						     __be64 tunnel_id)
{ … }

static void vlan_tunnel_info_release(struct net_bridge_vlan *vlan)
{ … }

void vlan_tunnel_info_del(struct net_bridge_vlan_group *vg,
			  struct net_bridge_vlan *vlan)
{ … }

static int __vlan_tunnel_info_add(struct net_bridge_vlan_group *vg,
				  struct net_bridge_vlan *vlan, u32 tun_id)
{ … }

/* Must be protected by RTNL.
 * Must be called with vid in range from 1 to 4094 inclusive.
 */
int nbp_vlan_tunnel_info_add(const struct net_bridge_port *port, u16 vid,
			     u32 tun_id)
{ … }

/* Must be protected by RTNL.
 * Must be called with vid in range from 1 to 4094 inclusive.
 */
int nbp_vlan_tunnel_info_delete(const struct net_bridge_port *port, u16 vid)
{ … }

static void __vlan_tunnel_info_flush(struct net_bridge_vlan_group *vg)
{ … }

void nbp_vlan_tunnel_info_flush(struct net_bridge_port *port)
{ … }

int vlan_tunnel_init(struct net_bridge_vlan_group *vg)
{ … }

void vlan_tunnel_deinit(struct net_bridge_vlan_group *vg)
{ … }

void br_handle_ingress_vlan_tunnel(struct sk_buff *skb,
				   struct net_bridge_port *p,
				   struct net_bridge_vlan_group *vg)
{ … }

int br_handle_egress_vlan_tunnel(struct sk_buff *skb,
				 struct net_bridge_vlan *vlan)
{ … }