mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 17:12:06 +00:00
569da08228
This patch adds support for manipulating vlan/tunnel mappings. The tunnel ids are globally unique and are one per-vlan. There were two trickier issues - first in order to support vlan ranges we have to compute the current tunnel id in the following way: - base tunnel id (attr) + current vlan id - starting vlan id This is in line how the old API does vlan/tunnel mapping with ranges. We already have the vlan range present, so it's redundant to add another attribute for the tunnel range end. It's simply base tunnel id + vlan range. And second to support removing mappings we need an out-of-band way to tell the option manipulating function because there are no special/reserved tunnel id values, so we use a vlan flag to denote the operation is tunnel mapping removal. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Bridge per vlan tunnels
|
|
*
|
|
* Authors:
|
|
* Roopa Prabhu <roopa@cumulusnetworks.com>
|
|
*/
|
|
|
|
#ifndef _BR_PRIVATE_TUNNEL_H
|
|
#define _BR_PRIVATE_TUNNEL_H
|
|
|
|
struct vtunnel_info {
|
|
u32 tunid;
|
|
u16 vid;
|
|
u16 flags;
|
|
};
|
|
|
|
/* br_netlink_tunnel.c */
|
|
int br_parse_vlan_tunnel_info(struct nlattr *attr,
|
|
struct vtunnel_info *tinfo);
|
|
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);
|
|
int br_get_vlan_tunnel_info_size(struct net_bridge_vlan_group *vg);
|
|
int br_fill_vlan_tunnel_info(struct sk_buff *skb,
|
|
struct net_bridge_vlan_group *vg);
|
|
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
/* br_vlan_tunnel.c */
|
|
int vlan_tunnel_init(struct net_bridge_vlan_group *vg);
|
|
void vlan_tunnel_deinit(struct net_bridge_vlan_group *vg);
|
|
int nbp_vlan_tunnel_info_delete(const struct net_bridge_port *port, u16 vid);
|
|
int nbp_vlan_tunnel_info_add(const struct net_bridge_port *port, u16 vid,
|
|
u32 tun_id);
|
|
void nbp_vlan_tunnel_info_flush(struct net_bridge_port *port);
|
|
void vlan_tunnel_info_del(struct net_bridge_vlan_group *vg,
|
|
struct net_bridge_vlan *vlan);
|
|
int 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);
|
|
bool vlan_tunid_inrange(const struct net_bridge_vlan *v_curr,
|
|
const struct net_bridge_vlan *v_last);
|
|
int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
|
|
u16 vid, u32 tun_id, bool *changed);
|
|
#else
|
|
static inline int vlan_tunnel_init(struct net_bridge_vlan_group *vg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int nbp_vlan_tunnel_info_delete(const struct net_bridge_port *port,
|
|
u16 vid)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int nbp_vlan_tunnel_info_add(const struct net_bridge_port *port,
|
|
u16 vid, u32 tun_id)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void nbp_vlan_tunnel_info_flush(struct net_bridge_port *port)
|
|
{
|
|
}
|
|
|
|
static inline void vlan_tunnel_info_del(struct net_bridge_vlan_group *vg,
|
|
struct net_bridge_vlan *vlan)
|
|
{
|
|
}
|
|
|
|
static inline int br_handle_ingress_vlan_tunnel(struct sk_buff *skb,
|
|
struct net_bridge_port *p,
|
|
struct net_bridge_vlan_group *vg)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif
|