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linux-next/net/8021q/vlan_mvrp.c
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

74 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* 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>
*/
#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);
}