186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward/* 286fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * IEEE 802.1Q Multiple VLAN Registration Protocol (MVRP) 386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * 486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * Copyright (c) 2012 Massachusetts Institute of Technology 586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * 686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * Adapted from code in net/8021q/vlan_gvrp.c 786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * Copyright (c) 2008 Patrick McHardy <kaber@trash.net> 886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * 986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * This program is free software; you can redistribute it and/or 1086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * modify it under the terms of the GNU General Public License 1186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward * version 2 as published by the Free Software Foundation. 1286fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward */ 1386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#include <linux/types.h> 1486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#include <linux/if_ether.h> 1586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#include <linux/if_vlan.h> 1686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#include <net/mrp.h> 1786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#include "vlan.h" 1886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 1986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#define MRP_MVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 } 2086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 2186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardenum mvrp_attributes { 2286fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward MVRP_ATTR_INVALID, 2386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward MVRP_ATTR_VID, 2486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward __MVRP_ATTR_MAX 2586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward}; 2686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward#define MVRP_ATTR_MAX (__MVRP_ATTR_MAX - 1) 2786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 2886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardstatic struct mrp_application vlan_mrp_app __read_mostly = { 2986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward .type = MRP_APPLICATION_MVRP, 3086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward .maxattr = MVRP_ATTR_MAX, 3186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward .pkttype.type = htons(ETH_P_MVRP), 3286fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward .group_address = MRP_MVRP_ADDRESS, 3386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward .version = 0, 3486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward}; 3586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 3686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardint vlan_mvrp_request_join(const struct net_device *dev) 3786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward{ 3886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); 3986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward __be16 vlan_id = htons(vlan->vlan_id); 4086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 411fd9b1fc310314911f66d2f14a8e4f0ef37bf47bPatrick McHardy if (vlan->vlan_proto != htons(ETH_P_8021Q)) 421fd9b1fc310314911f66d2f14a8e4f0ef37bf47bPatrick McHardy return 0; 4386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward return mrp_request_join(vlan->real_dev, &vlan_mrp_app, 4486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward &vlan_id, sizeof(vlan_id), MVRP_ATTR_VID); 4586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward} 4686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 4786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardvoid vlan_mvrp_request_leave(const struct net_device *dev) 4886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward{ 4986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); 5086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward __be16 vlan_id = htons(vlan->vlan_id); 5186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 521fd9b1fc310314911f66d2f14a8e4f0ef37bf47bPatrick McHardy if (vlan->vlan_proto != htons(ETH_P_8021Q)) 531fd9b1fc310314911f66d2f14a8e4f0ef37bf47bPatrick McHardy return; 5486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward mrp_request_leave(vlan->real_dev, &vlan_mrp_app, 5586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward &vlan_id, sizeof(vlan_id), MVRP_ATTR_VID); 5686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward} 5786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 5886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardint vlan_mvrp_init_applicant(struct net_device *dev) 5986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward{ 6086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward return mrp_init_applicant(dev, &vlan_mrp_app); 6186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward} 6286fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 6386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardvoid vlan_mvrp_uninit_applicant(struct net_device *dev) 6486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward{ 6586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward mrp_uninit_applicant(dev, &vlan_mrp_app); 6686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward} 6786fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 6886fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardint __init vlan_mvrp_init(void) 6986fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward{ 7086fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward return mrp_register_application(&vlan_mrp_app); 7186fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward} 7286fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward 7386fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Wardvoid vlan_mvrp_uninit(void) 7486fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward{ 7586fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward mrp_unregister_application(&vlan_mrp_app); 7686fbe9bb599fcaf7e92e38dbfdad0414a2d68f7dDavid Ward} 77