macvlan.c revision b0832a2961022a076c812384435b5f0290b3fc91
1b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* 2b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * Copyright (c) 2007 Patrick McHardy <kaber@trash.net> 3b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * 4b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * This program is free software; you can redistribute it and/or 5b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * modify it under the terms of the GNU General Public License as 6b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * published by the Free Software Foundation; either version 2 of 7b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * the License, or (at your option) any later version. 8b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * 9b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * The code this is based on carried the following copyright notice: 10b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * --- 11b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * (C) Copyright 2001-2006 12b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * Alex Zeffertt, Cambridge Broadband Ltd, ajz@cambridgebroadband.com 13b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * Re-worked by Ben Greear <greearb@candelatech.com> 14b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * --- 15b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy */ 16b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/kernel.h> 17b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/types.h> 18b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/module.h> 19b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/init.h> 20b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/errno.h> 21b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/slab.h> 22b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/string.h> 2382524746c27fa418c250a56dd7606b9d3fc79826Franck Bui-Huu#include <linux/rculist.h> 24b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/notifier.h> 25b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/netdevice.h> 26b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/etherdevice.h> 27b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/ethtool.h> 28b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/if_arp.h> 29b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/if_link.h> 30b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <linux/if_macvlan.h> 31b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#include <net/rtnetlink.h> 32b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 33b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_HASH_SIZE (1 << BITS_PER_BYTE) 34b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 35b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystruct macvlan_port { 36b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 37b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_head vlan_hash[MACVLAN_HASH_SIZE]; 38b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct list_head vlans; 39b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 40b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 41b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystruct macvlan_dev { 42b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 43b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct list_head list; 44b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node hlist; 45b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 46b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev; 47b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 48b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 49b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 50b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port, 51b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const unsigned char *addr) 52b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 53b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan; 54b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node *n; 55b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 56b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[addr[5]], hlist) { 57b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!compare_ether_addr(vlan->dev->dev_addr, addr)) 58b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return vlan; 59b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 60b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 61b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 62b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 63b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_broadcast(struct sk_buff *skb, 64b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_port *port) 65b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 66b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct ethhdr *eth = eth_hdr(skb); 67b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan; 68b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node *n; 69b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 70b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct sk_buff *nskb; 71b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int i; 72b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 73efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy if (skb->protocol == htons(ETH_P_PAUSE)) 74efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy return; 75efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy 76b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy for (i = 0; i < MACVLAN_HASH_SIZE; i++) { 77b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[i], hlist) { 78b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev = vlan->dev; 79b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 80b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy nskb = skb_clone(skb, GFP_ATOMIC); 81b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (nskb == NULL) { 82b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_errors++; 83b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_dropped++; 84b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy continue; 85b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 86b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 87b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_bytes += skb->len + ETH_HLEN; 88b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_packets++; 89b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.multicast++; 90b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 91b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy nskb->dev = dev; 92b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!compare_ether_addr(eth->h_dest, dev->broadcast)) 93b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy nskb->pkt_type = PACKET_BROADCAST; 94b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy else 95b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy nskb->pkt_type = PACKET_MULTICAST; 96b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 97b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netif_rx(nskb); 98b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 99b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 100b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 101b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 102b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* called under rcu_read_lock() from netif_receive_skb */ 103b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct sk_buff *macvlan_handle_frame(struct sk_buff *skb) 104b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 105b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct ethhdr *eth = eth_hdr(skb); 106b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_port *port; 107b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan; 108b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 109b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 110b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = rcu_dereference(skb->dev->macvlan_port); 111b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 112b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 113b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 114b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (is_multicast_ether_addr(eth->h_dest)) { 115b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy macvlan_broadcast(skb, port); 116b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 117b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 118b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 119b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan = macvlan_hash_lookup(port, eth->h_dest); 120b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (vlan == NULL) 121b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 122b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 123b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev = vlan->dev; 124b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (unlikely(!(dev->flags & IFF_UP))) { 125b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy kfree_skb(skb); 126b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 127b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 128b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 129b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb = skb_share_check(skb, GFP_ATOMIC); 130b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (skb == NULL) { 131b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_errors++; 132b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_dropped++; 133b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 134b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 135b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 136b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_bytes += skb->len + ETH_HLEN; 137b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.rx_packets++; 138b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 139b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->dev = dev; 140b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->pkt_type = PACKET_HOST; 141b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 142b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netif_rx(skb); 143b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 144b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 145b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 146008298231abbeb91bc7be9e8b078607b816d1a4aStephen Hemmingerstatic int macvlan_start_xmit(struct sk_buff *skb, struct net_device *dev) 147b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 148b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 149b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int len = skb->len; 150b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int ret; 151b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 152b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->dev = vlan->lowerdev; 153b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ret = dev_queue_xmit(skb); 154b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 155b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (likely(ret == NET_XMIT_SUCCESS)) { 156b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.tx_packets++; 157b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.tx_bytes += len; 158b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } else { 159b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.tx_errors++; 160b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->stats.tx_aborted_errors++; 161b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 162b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NETDEV_TX_OK; 163b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 164b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 165b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_hard_header(struct sk_buff *skb, struct net_device *dev, 1663b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger unsigned short type, const void *daddr, 1673b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger const void *saddr, unsigned len) 168b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 169b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 170b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 171b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 1720c4e85813d0a94eeb8bf813397a4907bdd7bb610Stephen Hemminger return dev_hard_header(skb, lowerdev, type, daddr, 1730c4e85813d0a94eeb8bf813397a4907bdd7bb610Stephen Hemminger saddr ? : dev->dev_addr, len); 174b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 175b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 1763b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemmingerstatic const struct header_ops macvlan_hard_header_ops = { 1773b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .create = macvlan_hard_header, 1783b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .rebuild = eth_rebuild_header, 1793b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .parse = eth_header_parse, 1803b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .cache = eth_header_cache, 1813b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .cache_update = eth_header_cache_update, 1823b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger}; 1833b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger 184b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_open(struct net_device *dev) 185b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 186b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 187b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = vlan->port; 188b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 189b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 190b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 191b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = dev_unicast_add(lowerdev, dev->dev_addr, ETH_ALEN); 192b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 193b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen goto out; 194b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen if (dev->flags & IFF_ALLMULTI) { 195b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen err = dev_set_allmulti(lowerdev, 1); 196b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen if (err < 0) 197b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen goto del_unicast; 198b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen } 199b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 200b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_add_head_rcu(&vlan->hlist, &port->vlan_hash[dev->dev_addr[5]]); 201b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 202b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen 203b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chendel_unicast: 204b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen dev_unicast_delete(lowerdev, dev->dev_addr, ETH_ALEN); 205b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chenout: 206b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen return err; 207b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 208b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 209b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_stop(struct net_device *dev) 210b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 211b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 212b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 213b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 214b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_mc_unsync(lowerdev, dev); 215b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (dev->flags & IFF_ALLMULTI) 216b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_set_allmulti(lowerdev, -1); 217b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 218b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_unicast_delete(lowerdev, dev->dev_addr, ETH_ALEN); 219b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 220b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_del_rcu(&vlan->hlist); 221b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy synchronize_rcu(); 222b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 223b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 224b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 225ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardystatic int macvlan_set_mac_address(struct net_device *dev, void *p) 226ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy{ 227ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 228ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 229ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct sockaddr *addr = p; 230ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy int err; 231ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 232ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy if (!is_valid_ether_addr(addr->sa_data)) 233ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return -EADDRNOTAVAIL; 234ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 235ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy if (!(dev->flags & IFF_UP)) 236ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy goto out; 237ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 238ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy err = dev_unicast_add(lowerdev, addr->sa_data, ETH_ALEN); 239ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy if (err < 0) 240ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return err; 241ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy dev_unicast_delete(lowerdev, dev->dev_addr, ETH_ALEN); 242ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 243ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardyout: 244ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); 245ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return 0; 246ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy} 247ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 248b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_change_rx_flags(struct net_device *dev, int change) 249b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 250b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 251b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 252b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 253b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (change & IFF_ALLMULTI) 254b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_set_allmulti(lowerdev, dev->flags & IFF_ALLMULTI ? 1 : -1); 255b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 256b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 257b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_set_multicast_list(struct net_device *dev) 258b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 259b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 260b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 261b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_mc_sync(vlan->lowerdev, dev); 262b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 263b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 264b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_change_mtu(struct net_device *dev, int new_mtu) 265b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 266b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 267b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 268b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (new_mtu < 68 || vlan->lowerdev->mtu < new_mtu) 269b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 270b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->mtu = new_mtu; 271b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 272b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 273b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 274b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* 275b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * macvlan network devices have devices nesting below it and are a special 276b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * "super class" of normal network devices; split their locks off into a 277b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * separate class since they always nest. 278b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy */ 279b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct lock_class_key macvlan_netdev_xmit_lock_key; 280cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Millerstatic struct lock_class_key macvlan_netdev_addr_lock_key; 281b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 282b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_FEATURES \ 283b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy (NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \ 284b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy NETIF_F_GSO | NETIF_F_TSO | NETIF_F_UFO | NETIF_F_GSO_ROBUST | \ 285b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy NETIF_F_TSO_ECN | NETIF_F_TSO6) 286b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 287b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_STATE_MASK \ 288b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT)) 289b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 290e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Millerstatic void macvlan_set_lockdep_class_one(struct net_device *dev, 291e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller struct netdev_queue *txq, 292e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller void *_unused) 293c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller{ 294c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller lockdep_set_class(&txq->_xmit_lock, 295c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller &macvlan_netdev_xmit_lock_key); 296c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller} 297c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 298c773e847ea8f6812804e40f52399c6921a00eab1David S. Millerstatic void macvlan_set_lockdep_class(struct net_device *dev) 299c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller{ 300cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Miller lockdep_set_class(&dev->addr_list_lock, 301cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Miller &macvlan_netdev_addr_lock_key); 302e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL); 303c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller} 304c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 305b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_init(struct net_device *dev) 306b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 307b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 308b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct net_device *lowerdev = vlan->lowerdev; 309b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 310b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->state = (dev->state & ~MACVLAN_STATE_MASK) | 311b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy (lowerdev->state & MACVLAN_STATE_MASK); 312b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->features = lowerdev->features & MACVLAN_FEATURES; 313b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->iflink = lowerdev->ifindex; 314b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 315c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller macvlan_set_lockdep_class(dev); 316c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 317b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 318b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 319b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 320b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_ethtool_get_drvinfo(struct net_device *dev, 321b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct ethtool_drvinfo *drvinfo) 322b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 323b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy snprintf(drvinfo->driver, 32, "macvlan"); 324b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy snprintf(drvinfo->version, 32, "0.1"); 325b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 326b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 327b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic u32 macvlan_ethtool_get_rx_csum(struct net_device *dev) 328b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 329b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 330b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 331b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 332b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev->ethtool_ops->get_rx_csum == NULL) 333b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 334b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return lowerdev->ethtool_ops->get_rx_csum(lowerdev); 335b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 336b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 3379edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemmingerstatic int macvlan_ethtool_get_settings(struct net_device *dev, 3389edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger struct ethtool_cmd *cmd) 3399edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger{ 3409edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger const struct macvlan_dev *vlan = netdev_priv(dev); 3419edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger struct net_device *lowerdev = vlan->lowerdev; 3429edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 3439edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger if (!lowerdev->ethtool_ops->get_settings) 3449edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger return -EOPNOTSUPP; 3459edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 3469edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger return lowerdev->ethtool_ops->get_settings(lowerdev, cmd); 3479edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger} 3489edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 3499edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemmingerstatic u32 macvlan_ethtool_get_flags(struct net_device *dev) 3509edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger{ 3519edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger const struct macvlan_dev *vlan = netdev_priv(dev); 3529edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger struct net_device *lowerdev = vlan->lowerdev; 3539edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 3549edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger if (!lowerdev->ethtool_ops->get_flags) 3559edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger return 0; 3569edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger return lowerdev->ethtool_ops->get_flags(lowerdev); 3579edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger} 3589edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 359b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic const struct ethtool_ops macvlan_ethtool_ops = { 360b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_link = ethtool_op_get_link, 3619edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger .get_settings = macvlan_ethtool_get_settings, 362b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_rx_csum = macvlan_ethtool_get_rx_csum, 363b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_drvinfo = macvlan_ethtool_get_drvinfo, 3649edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger .get_flags = macvlan_ethtool_get_flags, 365b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 366b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 36754a30c975b6b27c0c9268461b647576b146d39bbStephen Hemmingerstatic const struct net_device_ops macvlan_netdev_ops = { 36854a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_init = macvlan_init, 36954a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_open = macvlan_open, 37054a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_stop = macvlan_stop, 371008298231abbeb91bc7be9e8b078607b816d1a4aStephen Hemminger .ndo_start_xmit = macvlan_start_xmit, 37254a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_change_mtu = macvlan_change_mtu, 37354a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_change_rx_flags = macvlan_change_rx_flags, 37454a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_set_mac_address = macvlan_set_mac_address, 37554a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_set_multicast_list = macvlan_set_multicast_list, 37654a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_validate_addr = eth_validate_addr, 37754a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger}; 37854a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger 379b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_setup(struct net_device *dev) 380b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 381b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ether_setup(dev); 382b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 38354a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger dev->netdev_ops = &macvlan_netdev_ops; 384b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->destructor = free_netdev; 3853b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger dev->header_ops = &macvlan_hard_header_ops, 386b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->ethtool_ops = &macvlan_ethtool_ops; 387b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->tx_queue_len = 0; 388b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 389b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 390b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_port_create(struct net_device *dev) 391b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 392b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 393b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int i; 394b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 395b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (dev->type != ARPHRD_ETHER || dev->flags & IFF_LOOPBACK) 396b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 397b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 398b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = kzalloc(sizeof(*port), GFP_KERNEL); 399b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 400b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -ENOMEM; 401b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 402b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port->dev = dev; 403b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy INIT_LIST_HEAD(&port->vlans); 404b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy for (i = 0; i < MACVLAN_HASH_SIZE; i++) 405b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy INIT_HLIST_HEAD(&port->vlan_hash[i]); 406b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rcu_assign_pointer(dev->macvlan_port, port); 407b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 408b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 409b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 410b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_port_destroy(struct net_device *dev) 411b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 412b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = dev->macvlan_port; 413b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 414b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rcu_assign_pointer(dev->macvlan_port, NULL); 415b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy synchronize_rcu(); 416b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy kfree(port); 417b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 418b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 419b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_transfer_operstate(struct net_device *dev) 420b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 421b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 422b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct net_device *lowerdev = vlan->lowerdev; 423b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 424b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev->operstate == IF_OPER_DORMANT) 425b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netif_dormant_on(dev); 426b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy else 427b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netif_dormant_off(dev); 428b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 429b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (netif_carrier_ok(lowerdev)) { 430b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!netif_carrier_ok(dev)) 431b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netif_carrier_on(dev); 432b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } else { 433f12ca5f97b7f99288aff1dc32a91f21c3230fefePatrick McHardy if (netif_carrier_ok(dev)) 434b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netif_carrier_off(dev); 435b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 436b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 437b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 438b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) 439b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 440b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (tb[IFLA_ADDRESS]) { 441b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 442b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 443b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 444b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EADDRNOTAVAIL; 445b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 446b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 447b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 448b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 449b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_newlink(struct net_device *dev, 450b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct nlattr *tb[], struct nlattr *data[]) 451b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 452b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 453b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 454b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev; 455b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 456b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 457b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_LINK]) 458b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 459b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 460c346dca10840a874240c78efe3f39acf4312a1f2YOSHIFUJI Hideaki lowerdev = __dev_get_by_index(dev_net(dev), nla_get_u32(tb[IFLA_LINK])); 461b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev == NULL) 462b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -ENODEV; 463b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 464b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman /* When creating macvlans on top of other macvlans - use 465b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman * the real device as the lowerdev. 466a6ca5f1dbe40470fcb1ecc921769d792a1e77ed9Patrick McHardy */ 467b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman if (lowerdev->rtnl_link_ops == dev->rtnl_link_ops) { 468b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman struct macvlan_dev *lowervlan = netdev_priv(lowerdev); 469b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman lowerdev = lowervlan->lowerdev; 470b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman } 471a6ca5f1dbe40470fcb1ecc921769d792a1e77ed9Patrick McHardy 472b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_MTU]) 473b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->mtu = lowerdev->mtu; 474b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy else if (dev->mtu > lowerdev->mtu) 475b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 476b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 477b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_ADDRESS]) 478b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy random_ether_addr(dev->dev_addr); 479b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 480b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev->macvlan_port == NULL) { 481b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = macvlan_port_create(lowerdev); 482b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 483b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 484b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 485b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = lowerdev->macvlan_port; 486b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 487b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->lowerdev = lowerdev; 488b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->dev = dev; 489b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->port = port; 490b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 491b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = register_netdevice(dev); 492b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 493b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 494b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 495b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_add_tail(&vlan->list, &port->vlans); 496b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy macvlan_transfer_operstate(dev); 497b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 498b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 499b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 500b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_dellink(struct net_device *dev) 501b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 502b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 503b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = vlan->port; 504b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 505b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_del(&vlan->list); 506b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice(dev); 507b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 508b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (list_empty(&port->vlans)) 5097312096454b6cd71267eaa3d0efb408e449e9ff3Patrick McHardy macvlan_port_destroy(port->dev); 510b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 511b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 512b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct rtnl_link_ops macvlan_link_ops __read_mostly = { 513b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .kind = "macvlan", 514b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .priv_size = sizeof(struct macvlan_dev), 515b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .setup = macvlan_setup, 516b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .validate = macvlan_validate, 517b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .newlink = macvlan_newlink, 518b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .dellink = macvlan_dellink, 519b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 520b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 521b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_device_event(struct notifier_block *unused, 522b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned long event, void *ptr) 523b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 524b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev = ptr; 525b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan, *next; 526b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 527b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 528b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = dev->macvlan_port; 529b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 530b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NOTIFY_DONE; 531b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 532b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy switch (event) { 533b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_CHANGE: 534b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry(vlan, &port->vlans, list) 535b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy macvlan_transfer_operstate(vlan->dev); 536b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 537b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_FEAT_CHANGE: 538b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry(vlan, &port->vlans, list) { 539b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->dev->features = dev->features & MACVLAN_FEATURES; 540b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netdev_features_change(vlan->dev); 541b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 542b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 543b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_UNREGISTER: 544b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry_safe(vlan, next, &port->vlans, list) 545b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy macvlan_dellink(vlan->dev); 546b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 547b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 548b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NOTIFY_DONE; 549b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 550b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 551b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct notifier_block macvlan_notifier_block __read_mostly = { 552b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .notifier_call = macvlan_device_event, 553b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 554b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 555b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int __init macvlan_init_module(void) 556b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 557b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 558b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 559b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy register_netdevice_notifier(&macvlan_notifier_block); 560b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy macvlan_handle_frame_hook = macvlan_handle_frame; 561b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 562b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = rtnl_link_register(&macvlan_link_ops); 563b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 564b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy goto err1; 565b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 566b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyerr1: 56752913246e0056c9c6215a778a3b31b6b9ce5c3efRami Rosen macvlan_handle_frame_hook = NULL; 568b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice_notifier(&macvlan_notifier_block); 569b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 570b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 571b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 572b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void __exit macvlan_cleanup_module(void) 573b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 574b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rtnl_link_unregister(&macvlan_link_ops); 575b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy macvlan_handle_frame_hook = NULL; 576b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice_notifier(&macvlan_notifier_block); 577b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 578b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 579b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardymodule_init(macvlan_init_module); 580b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardymodule_exit(macvlan_cleanup_module); 581b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 582b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_LICENSE("GPL"); 583b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); 584b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_DESCRIPTION("Driver for MAC address based VLANs"); 585b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_ALIAS_RTNL_LINK("macvlan"); 586