74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* IEEE 802.1Q Multiple VLAN Registration Protocol (MVRP)
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*
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* Copyright (c) 2012 Massachusetts Institute of Technology
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*
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* Adapted from code in net/8021q/vlan_gvrp.c
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* Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
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*/
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <net/mrp.h>
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#include "vlan.h"
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#define MRP_MVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 }
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enum mvrp_attributes {
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MVRP_ATTR_INVALID,
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MVRP_ATTR_VID,
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__MVRP_ATTR_MAX
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};
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#define MVRP_ATTR_MAX (__MVRP_ATTR_MAX - 1)
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static struct mrp_application vlan_mrp_app __read_mostly = {
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.type = MRP_APPLICATION_MVRP,
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.maxattr = MVRP_ATTR_MAX,
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.pkttype.type = htons(ETH_P_MVRP),
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.group_address = MRP_MVRP_ADDRESS,
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.version = 0,
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};
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int vlan_mvrp_request_join(const struct net_device *dev)
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{
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const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
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__be16 vlan_id = htons(vlan->vlan_id);
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if (vlan->vlan_proto != htons(ETH_P_8021Q))
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return 0;
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return mrp_request_join(vlan->real_dev, &vlan_mrp_app,
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&vlan_id, sizeof(vlan_id), MVRP_ATTR_VID);
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}
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void vlan_mvrp_request_leave(const struct net_device *dev)
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{
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const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
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__be16 vlan_id = htons(vlan->vlan_id);
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if (vlan->vlan_proto != htons(ETH_P_8021Q))
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return;
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mrp_request_leave(vlan->real_dev, &vlan_mrp_app,
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&vlan_id, sizeof(vlan_id), MVRP_ATTR_VID);
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}
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int vlan_mvrp_init_applicant(struct net_device *dev)
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{
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return mrp_init_applicant(dev, &vlan_mrp_app);
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}
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void vlan_mvrp_uninit_applicant(struct net_device *dev)
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{
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mrp_uninit_applicant(dev, &vlan_mrp_app);
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}
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int __init vlan_mvrp_init(void)
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{
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return mrp_register_application(&vlan_mrp_app);
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}
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void vlan_mvrp_uninit(void)
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{
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mrp_unregister_application(&vlan_mrp_app);
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}
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