71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
|
/*
|
||
|
|
* IEEE 802.1Q GARP VLAN Registration Protocol (GVRP)
|
||
|
|
*
|
||
|
|
* 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_vlan.h>
|
||
|
|
#include <net/garp.h>
|
||
|
|
#include "vlan.h"
|
||
|
|
|
||
|
|
#define GARP_GVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 }
|
||
|
|
|
||
|
|
enum gvrp_attributes {
|
||
|
|
GVRP_ATTR_INVALID,
|
||
|
|
GVRP_ATTR_VID,
|
||
|
|
__GVRP_ATTR_MAX
|
||
|
|
};
|
||
|
|
#define GVRP_ATTR_MAX (__GVRP_ATTR_MAX - 1)
|
||
|
|
|
||
|
|
static struct garp_application vlan_gvrp_app __read_mostly = {
|
||
|
|
.proto.group_address = GARP_GVRP_ADDRESS,
|
||
|
|
.maxattr = GVRP_ATTR_MAX,
|
||
|
|
.type = GARP_APPLICATION_GVRP,
|
||
|
|
};
|
||
|
|
|
||
|
|
int vlan_gvrp_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 garp_request_join(vlan->real_dev, &vlan_gvrp_app,
|
||
|
|
&vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
|
||
|
|
}
|
||
|
|
|
||
|
|
void vlan_gvrp_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;
|
||
|
|
garp_request_leave(vlan->real_dev, &vlan_gvrp_app,
|
||
|
|
&vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
|
||
|
|
}
|
||
|
|
|
||
|
|
int vlan_gvrp_init_applicant(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return garp_init_applicant(dev, &vlan_gvrp_app);
|
||
|
|
}
|
||
|
|
|
||
|
|
void vlan_gvrp_uninit_applicant(struct net_device *dev)
|
||
|
|
{
|
||
|
|
garp_uninit_applicant(dev, &vlan_gvrp_app);
|
||
|
|
}
|
||
|
|
|
||
|
|
int __init vlan_gvrp_init(void)
|
||
|
|
{
|
||
|
|
return garp_register_application(&vlan_gvrp_app);
|
||
|
|
}
|
||
|
|
|
||
|
|
void vlan_gvrp_uninit(void)
|
||
|
|
{
|
||
|
|
garp_unregister_application(&vlan_gvrp_app);
|
||
|
|
}
|