mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
1fd9b1fc31
Make the encapsulation protocol value a property of VLAN devices and change the device lookup functions to take the protocol value into account. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
|
|
* IEEE 802.1Q Multiple VLAN Registration Protocol (MVRP)
|
|
*
|
|
* Copyright (c) 2012 Massachusetts Institute of Technology
|
|
*
|
|
* Adapted from code in net/8021q/vlan_gvrp.c
|
|
* Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*/
|
|
#include <linux/types.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/if_vlan.h>
|
|
#include <net/mrp.h>
|
|
#include "vlan.h"
|
|
|
|
#define MRP_MVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 }
|
|
|
|
enum mvrp_attributes {
|
|
MVRP_ATTR_INVALID,
|
|
MVRP_ATTR_VID,
|
|
__MVRP_ATTR_MAX
|
|
};
|
|
#define MVRP_ATTR_MAX (__MVRP_ATTR_MAX - 1)
|
|
|
|
static struct mrp_application vlan_mrp_app __read_mostly = {
|
|
.type = MRP_APPLICATION_MVRP,
|
|
.maxattr = MVRP_ATTR_MAX,
|
|
.pkttype.type = htons(ETH_P_MVRP),
|
|
.group_address = MRP_MVRP_ADDRESS,
|
|
.version = 0,
|
|
};
|
|
|
|
int vlan_mvrp_request_join(const struct net_device *dev)
|
|
{
|
|
const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
|
|
__be16 vlan_id = htons(vlan->vlan_id);
|
|
|
|
if (vlan->vlan_proto != htons(ETH_P_8021Q))
|
|
return 0;
|
|
return mrp_request_join(vlan->real_dev, &vlan_mrp_app,
|
|
&vlan_id, sizeof(vlan_id), MVRP_ATTR_VID);
|
|
}
|
|
|
|
void vlan_mvrp_request_leave(const struct net_device *dev)
|
|
{
|
|
const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
|
|
__be16 vlan_id = htons(vlan->vlan_id);
|
|
|
|
if (vlan->vlan_proto != htons(ETH_P_8021Q))
|
|
return;
|
|
mrp_request_leave(vlan->real_dev, &vlan_mrp_app,
|
|
&vlan_id, sizeof(vlan_id), MVRP_ATTR_VID);
|
|
}
|
|
|
|
int vlan_mvrp_init_applicant(struct net_device *dev)
|
|
{
|
|
return mrp_init_applicant(dev, &vlan_mrp_app);
|
|
}
|
|
|
|
void vlan_mvrp_uninit_applicant(struct net_device *dev)
|
|
{
|
|
mrp_uninit_applicant(dev, &vlan_mrp_app);
|
|
}
|
|
|
|
int __init vlan_mvrp_init(void)
|
|
{
|
|
return mrp_register_application(&vlan_mrp_app);
|
|
}
|
|
|
|
void vlan_mvrp_uninit(void)
|
|
{
|
|
mrp_unregister_application(&vlan_mrp_app);
|
|
}
|