linux/net/bridge/br_netlink_tunnel.c

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

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/etherdevice.h>
#include <net/rtnetlink.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <uapi/linux/if_bridge.h>
#include <net/dst_metadata.h>

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

static size_t __get_vlan_tinfo_size(void)
{ … }

bool vlan_tunid_inrange(const struct net_bridge_vlan *v_curr,
			const struct net_bridge_vlan *v_last)
{ … }

static int __get_num_vlan_tunnel_infos(struct net_bridge_vlan_group *vg)
{ … }

int br_get_vlan_tunnel_info_size(struct net_bridge_vlan_group *vg)
{ … }

static int br_fill_vlan_tinfo(struct sk_buff *skb, u16 vid,
			      __be64 tunnel_id, u16 flags)
{ … }

static int br_fill_vlan_tinfo_range(struct sk_buff *skb,
				    struct net_bridge_vlan *vtbegin,
				    struct net_bridge_vlan *vtend)
{ … }

int br_fill_vlan_tunnel_info(struct sk_buff *skb,
			     struct net_bridge_vlan_group *vg)
{ … }

static const struct nla_policy vlan_tunnel_policy[IFLA_BRIDGE_VLAN_TUNNEL_MAX + 1] = …;

int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
			u16 vid, u32 tun_id, bool *changed)
{ … }

int br_parse_vlan_tunnel_info(struct nlattr *attr,
			      struct vtunnel_info *tinfo)
{ … }

/* send a notification if v_curr can't enter the range and start a new one */
static void __vlan_tunnel_handle_range(const struct net_bridge_port *p,
				       struct net_bridge_vlan **v_start,
				       struct net_bridge_vlan **v_end,
				       int v_curr, bool curr_change)
{ … }

int br_process_vlan_tunnel_info(const struct net_bridge *br,
				const struct net_bridge_port *p, int cmd,
				struct vtunnel_info *tinfo_curr,
				struct vtunnel_info *tinfo_last,
				bool *changed)
{ … }