macvlan.c revision 8b37ef0a1f6c2401fea3536facfa21191936bd6c
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> 32618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann#include <net/xfrm.h> 33b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 34b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_HASH_SIZE (1 << BITS_PER_BYTE) 35b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 36b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystruct macvlan_port { 37b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 38b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_head vlan_hash[MACVLAN_HASH_SIZE]; 39b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct list_head vlans; 408b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko struct rcu_head rcu; 41b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 42b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 43b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port, 44b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const unsigned char *addr) 45b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 46b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan; 47b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node *n; 48b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 49b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[addr[5]], hlist) { 50ac06713d55d450cbc9ef871b1b238409238f0fe0Eric Dumazet if (!compare_ether_addr_64bits(vlan->dev->dev_addr, addr)) 51b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return vlan; 52b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 53b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 54b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 55b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 56f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic void macvlan_hash_add(struct macvlan_dev *vlan) 57f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 58f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman struct macvlan_port *port = vlan->port; 59f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman const unsigned char *addr = vlan->dev->dev_addr; 60f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 61f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman hlist_add_head_rcu(&vlan->hlist, &port->vlan_hash[addr[5]]); 62f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 63f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 64f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic void macvlan_hash_del(struct macvlan_dev *vlan) 65f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 66f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman hlist_del_rcu(&vlan->hlist); 67f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman synchronize_rcu(); 68f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 69f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 70f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic void macvlan_hash_change_addr(struct macvlan_dev *vlan, 71f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman const unsigned char *addr) 72f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 73f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_del(vlan); 74f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Now that we are unhashed it is safe to change the device 75f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman * address without confusing packet delivery. 76f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman */ 77f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman memcpy(vlan->dev->dev_addr, addr, ETH_ALEN); 78f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_add(vlan); 79f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 80f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 81f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic int macvlan_addr_busy(const struct macvlan_port *port, 82f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman const unsigned char *addr) 83f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 84f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Test to see if the specified multicast address is 85f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman * currently in use by the underlying device or 86f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman * another macvlan. 87f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman */ 88ac06713d55d450cbc9ef871b1b238409238f0fe0Eric Dumazet if (!compare_ether_addr_64bits(port->dev->dev_addr, addr)) 89f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return 1; 90f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 91f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (macvlan_hash_lookup(port, addr)) 92f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return 1; 93f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 94f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return 0; 95f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 96f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 97a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 98fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannstatic int macvlan_broadcast_one(struct sk_buff *skb, 99fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann const struct macvlan_dev *vlan, 100618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct ethhdr *eth, bool local) 101a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann{ 102fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct net_device *dev = vlan->dev; 103a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann if (!skb) 104a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann return NET_RX_DROP; 105a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 106618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (local) 107fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return vlan->forward(dev, skb); 108618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 109a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann skb->dev = dev; 110a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann if (!compare_ether_addr_64bits(eth->h_dest, 111a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann dev->broadcast)) 112a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann skb->pkt_type = PACKET_BROADCAST; 113a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann else 114a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann skb->pkt_type = PACKET_MULTICAST; 115a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 116fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return vlan->receive(skb); 117a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann} 118a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 119b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_broadcast(struct sk_buff *skb, 120618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_port *port, 121618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann struct net_device *src, 122618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann enum macvlan_mode mode) 123b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 124b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct ethhdr *eth = eth_hdr(skb); 125b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan; 126b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node *n; 127b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct sk_buff *nskb; 128b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int i; 129a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann int err; 130b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 131efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy if (skb->protocol == htons(ETH_P_PAUSE)) 132efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy return; 133efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy 134b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy for (i = 0; i < MACVLAN_HASH_SIZE; i++) { 135b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[i], hlist) { 136618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (vlan->dev == src || !(vlan->mode & mode)) 137618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann continue; 138618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 139b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy nskb = skb_clone(skb, GFP_ATOMIC); 140fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann err = macvlan_broadcast_one(nskb, vlan, eth, 141618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann mode == MACVLAN_MODE_BRIDGE); 142a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann macvlan_count_rx(vlan, skb->len + ETH_HLEN, 143a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann err == NET_RX_SUCCESS, 1); 144b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 145b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 146b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 147b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 148b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* called under rcu_read_lock() from netif_receive_skb */ 149ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirkostatic struct sk_buff *macvlan_handle_frame(struct sk_buff *skb) 150b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 151ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko struct macvlan_port *port; 152b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct ethhdr *eth = eth_hdr(skb); 153b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan; 154618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_dev *src; 155b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 156a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann unsigned int len; 157b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 158ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko port = rcu_dereference(skb->dev->macvlan_port); 159b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (is_multicast_ether_addr(eth->h_dest)) { 160618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann src = macvlan_hash_lookup(port, eth->h_source); 161618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (!src) 162618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* frame comes from an external address */ 163618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, NULL, 164618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_PRIVATE | 165618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_VEPA | 166618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_BRIDGE); 167618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann else if (src->mode == MACVLAN_MODE_VEPA) 168618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* flood to everyone except source */ 169618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, src->dev, 170618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_VEPA | 171618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_BRIDGE); 172618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann else if (src->mode == MACVLAN_MODE_BRIDGE) 173618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* 174618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann * flood only to VEPA ports, bridge ports 175618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann * already saw the frame on the way out. 176618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann */ 177618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, src->dev, 178618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_VEPA); 179b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 180b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 181b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 182b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan = macvlan_hash_lookup(port, eth->h_dest); 183b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (vlan == NULL) 184b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 185b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 186b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev = vlan->dev; 187b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (unlikely(!(dev->flags & IFF_UP))) { 188b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy kfree_skb(skb); 189b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 190b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 191a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann len = skb->len + ETH_HLEN; 192b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb = skb_share_check(skb, GFP_ATOMIC); 193a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann macvlan_count_rx(vlan, len, skb != NULL, 0); 194a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann if (!skb) 195b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 196b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 197b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->dev = dev; 198b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->pkt_type = PACKET_HOST; 199b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 200fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->receive(skb); 201b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 202b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 203b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 204618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmannstatic int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) 205618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann{ 206618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_dev *vlan = netdev_priv(dev); 207618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_port *port = vlan->port; 208618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_dev *dest; 209618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 210618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (vlan->mode == MACVLAN_MODE_BRIDGE) { 211618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct ethhdr *eth = (void *)skb->data; 212618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 213618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* send to other bridge ports directly */ 214618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (is_multicast_ether_addr(eth->h_dest)) { 215618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, dev, MACVLAN_MODE_BRIDGE); 216618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann goto xmit_world; 217618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann } 218618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 219618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann dest = macvlan_hash_lookup(port, eth->h_dest); 220618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (dest && dest->mode == MACVLAN_MODE_BRIDGE) { 221618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann unsigned int length = skb->len + ETH_HLEN; 222fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann int ret = dest->forward(dest->dev, skb); 223618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_count_rx(dest, length, 224618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann ret == NET_RX_SUCCESS, 0); 225618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 226618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann return NET_XMIT_SUCCESS; 227618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann } 228618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann } 229618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 230618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmannxmit_world: 2318a83a00b0735190384a348156837918271034144Arnd Bergmann skb_set_dev(skb, vlan->lowerdev); 232618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann return dev_queue_xmit(skb); 233618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann} 234618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 235fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannnetdev_tx_t macvlan_start_xmit(struct sk_buff *skb, 236fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct net_device *dev) 237b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 2382c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet int i = skb_get_queue_mapping(skb); 2392c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet struct netdev_queue *txq = netdev_get_tx_queue(dev, i); 240b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int len = skb->len; 241b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int ret; 242b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 243618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann ret = macvlan_queue_xmit(skb, dev); 2442d6c9ffcca7808f42ba6b953da0ba60e19a9cbbdEric Dumazet if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { 2452c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet txq->tx_packets++; 2462c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet txq->tx_bytes += len; 2472c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet } else 2482c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet txq->tx_dropped++; 2492c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 250cbbef5e183079455763fc470ccf69008f92ab4b6Patrick McHardy return ret; 251b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 252fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_start_xmit); 253b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 254b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_hard_header(struct sk_buff *skb, struct net_device *dev, 2553b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger unsigned short type, const void *daddr, 2563b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger const void *saddr, unsigned len) 257b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 258b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 259b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 260b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 2610c4e85813d0a94eeb8bf813397a4907bdd7bb610Stephen Hemminger return dev_hard_header(skb, lowerdev, type, daddr, 2620c4e85813d0a94eeb8bf813397a4907bdd7bb610Stephen Hemminger saddr ? : dev->dev_addr, len); 263b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 264b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 2653b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemmingerstatic const struct header_ops macvlan_hard_header_ops = { 2663b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .create = macvlan_hard_header, 2673b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .rebuild = eth_rebuild_header, 2683b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .parse = eth_header_parse, 2693b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .cache = eth_header_cache, 2703b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .cache_update = eth_header_cache_update, 2713b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger}; 2723b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger 273b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_open(struct net_device *dev) 274b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 275b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 276b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 277b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 278b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 279f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman err = -EBUSY; 280f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (macvlan_addr_busy(vlan->port, dev->dev_addr)) 281f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman goto out; 282f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 283a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko err = dev_uc_add(lowerdev, dev->dev_addr); 284b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 285b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen goto out; 286b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen if (dev->flags & IFF_ALLMULTI) { 287b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen err = dev_set_allmulti(lowerdev, 1); 288b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen if (err < 0) 289b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen goto del_unicast; 290b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen } 291f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_add(vlan); 292b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 293b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen 294b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chendel_unicast: 295a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko dev_uc_del(lowerdev, dev->dev_addr); 296b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chenout: 297b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen return err; 298b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 299b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 300b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_stop(struct net_device *dev) 301b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 302b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 303b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 304b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 305b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_mc_unsync(lowerdev, dev); 306b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (dev->flags & IFF_ALLMULTI) 307b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_set_allmulti(lowerdev, -1); 308b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 309a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko dev_uc_del(lowerdev, dev->dev_addr); 310b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 311f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_del(vlan); 312b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 313b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 314b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 315ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardystatic int macvlan_set_mac_address(struct net_device *dev, void *p) 316ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy{ 317ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 318ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 319ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct sockaddr *addr = p; 320ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy int err; 321ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 322ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy if (!is_valid_ether_addr(addr->sa_data)) 323ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return -EADDRNOTAVAIL; 324ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 325f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (!(dev->flags & IFF_UP)) { 326f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Just copy in the new address */ 327f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); 328f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman } else { 329f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Rehash and update the device filters */ 330f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (macvlan_addr_busy(vlan->port, addr->sa_data)) 331f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return -EBUSY; 332ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 333a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko err = dev_uc_add(lowerdev, addr->sa_data); 334ccffad25b5136958d4769ed6de5e87992dd9c65cJiri Pirko if (err) 335f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return err; 336ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 337a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko dev_uc_del(lowerdev, dev->dev_addr); 338f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 339f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_change_addr(vlan, addr->sa_data); 340f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman } 341ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return 0; 342ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy} 343ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 344b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_change_rx_flags(struct net_device *dev, int change) 345b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 346b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 347b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 348b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 349b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (change & IFF_ALLMULTI) 350b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_set_allmulti(lowerdev, dev->flags & IFF_ALLMULTI ? 1 : -1); 351b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 352b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 353b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_set_multicast_list(struct net_device *dev) 354b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 355b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 356b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 357b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_mc_sync(vlan->lowerdev, dev); 358b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 359b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 360b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_change_mtu(struct net_device *dev, int new_mtu) 361b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 362b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 363b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 364b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (new_mtu < 68 || vlan->lowerdev->mtu < new_mtu) 365b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 366b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->mtu = new_mtu; 367b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 368b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 369b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 370b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* 371b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * macvlan network devices have devices nesting below it and are a special 372b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * "super class" of normal network devices; split their locks off into a 373b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * separate class since they always nest. 374b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy */ 375b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct lock_class_key macvlan_netdev_xmit_lock_key; 376cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Millerstatic struct lock_class_key macvlan_netdev_addr_lock_key; 377b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 378b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_FEATURES \ 379b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy (NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \ 380b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy NETIF_F_GSO | NETIF_F_TSO | NETIF_F_UFO | NETIF_F_GSO_ROBUST | \ 3816eb3a8553345ba2b4efd5390709e158289b9ece4Patrick Mullaney NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO) 382b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 383b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_STATE_MASK \ 384b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT)) 385b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 386e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Millerstatic void macvlan_set_lockdep_class_one(struct net_device *dev, 387e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller struct netdev_queue *txq, 388e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller void *_unused) 389c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller{ 390c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller lockdep_set_class(&txq->_xmit_lock, 391c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller &macvlan_netdev_xmit_lock_key); 392c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller} 393c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 394c773e847ea8f6812804e40f52399c6921a00eab1David S. Millerstatic void macvlan_set_lockdep_class(struct net_device *dev) 395c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller{ 396cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Miller lockdep_set_class(&dev->addr_list_lock, 397cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Miller &macvlan_netdev_addr_lock_key); 398e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL); 399c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller} 400c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 401b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_init(struct net_device *dev) 402b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 403b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 404b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct net_device *lowerdev = vlan->lowerdev; 405b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 406b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->state = (dev->state & ~MACVLAN_STATE_MASK) | 407b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy (lowerdev->state & MACVLAN_STATE_MASK); 408b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->features = lowerdev->features & MACVLAN_FEATURES; 4098c2acc53fd7987493f11640e266cf7130591e764Patrick McHardy dev->gso_max_size = lowerdev->gso_max_size; 410b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->iflink = lowerdev->ifindex; 411ef5c89967d50042b29937fb724e057c1aa3c5207sg.tweak@gmail.com dev->hard_header_len = lowerdev->hard_header_len; 412b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 413c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller macvlan_set_lockdep_class(dev); 414c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 415fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet vlan->rx_stats = alloc_percpu(struct macvlan_rx_stats); 416fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet if (!vlan->rx_stats) 417fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet return -ENOMEM; 418fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 419b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 420b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 421b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 422fccaf71011b171883efee5bae321eac4760584d1Eric Dumazetstatic void macvlan_uninit(struct net_device *dev) 423fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet{ 424fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct macvlan_dev *vlan = netdev_priv(dev); 425fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 426fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet free_percpu(vlan->rx_stats); 427fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet} 428fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 429fccaf71011b171883efee5bae321eac4760584d1Eric Dumazetstatic struct net_device_stats *macvlan_dev_get_stats(struct net_device *dev) 430fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet{ 431fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct net_device_stats *stats = &dev->stats; 432fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct macvlan_dev *vlan = netdev_priv(dev); 433fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 434fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet dev_txq_stats_fold(dev, stats); 435fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 436fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet if (vlan->rx_stats) { 437fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct macvlan_rx_stats *p, rx = {0}; 438fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet int i; 439fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 440fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet for_each_possible_cpu(i) { 441fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet p = per_cpu_ptr(vlan->rx_stats, i); 442fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.rx_packets += p->rx_packets; 443fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.rx_bytes += p->rx_bytes; 444fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.rx_errors += p->rx_errors; 445fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.multicast += p->multicast; 446fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet } 447fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_packets = rx.rx_packets; 448fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_bytes = rx.rx_bytes; 449fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_errors = rx.rx_errors; 450fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_dropped = rx.rx_errors; 451fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->multicast = rx.multicast; 452fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet } 453fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet return stats; 454fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet} 455fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 456b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_ethtool_get_drvinfo(struct net_device *dev, 457b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct ethtool_drvinfo *drvinfo) 458b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 459b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy snprintf(drvinfo->driver, 32, "macvlan"); 460b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy snprintf(drvinfo->version, 32, "0.1"); 461b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 462b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 463b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic u32 macvlan_ethtool_get_rx_csum(struct net_device *dev) 464b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 465b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 466b1b67dd45a6b629eb41553856805aaa1614fbb83Patrick McHardy return dev_ethtool_get_rx_csum(vlan->lowerdev); 467b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 468b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 4699edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemmingerstatic int macvlan_ethtool_get_settings(struct net_device *dev, 4709edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger struct ethtool_cmd *cmd) 4719edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger{ 4729edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger const struct macvlan_dev *vlan = netdev_priv(dev); 473b1b67dd45a6b629eb41553856805aaa1614fbb83Patrick McHardy return dev_ethtool_get_settings(vlan->lowerdev, cmd); 4749edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger} 4759edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 4769edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemmingerstatic u32 macvlan_ethtool_get_flags(struct net_device *dev) 4779edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger{ 4789edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger const struct macvlan_dev *vlan = netdev_priv(dev); 479b1b67dd45a6b629eb41553856805aaa1614fbb83Patrick McHardy return dev_ethtool_get_flags(vlan->lowerdev); 4809edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger} 4819edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 482b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic const struct ethtool_ops macvlan_ethtool_ops = { 483b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_link = ethtool_op_get_link, 4849edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger .get_settings = macvlan_ethtool_get_settings, 485b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_rx_csum = macvlan_ethtool_get_rx_csum, 486b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_drvinfo = macvlan_ethtool_get_drvinfo, 4879edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger .get_flags = macvlan_ethtool_get_flags, 488b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 489b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 49054a30c975b6b27c0c9268461b647576b146d39bbStephen Hemmingerstatic const struct net_device_ops macvlan_netdev_ops = { 49154a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_init = macvlan_init, 492fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet .ndo_uninit = macvlan_uninit, 49354a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_open = macvlan_open, 49454a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_stop = macvlan_stop, 495008298231abbeb91bc7be9e8b078607b816d1a4aStephen Hemminger .ndo_start_xmit = macvlan_start_xmit, 49654a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_change_mtu = macvlan_change_mtu, 49754a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_change_rx_flags = macvlan_change_rx_flags, 49854a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_set_mac_address = macvlan_set_mac_address, 49954a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_set_multicast_list = macvlan_set_multicast_list, 500fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet .ndo_get_stats = macvlan_dev_get_stats, 50154a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_validate_addr = eth_validate_addr, 50254a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger}; 50354a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger 504b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_setup(struct net_device *dev) 505b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 506b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ether_setup(dev); 507b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 50893f154b594fe47e4a7e5358b309add449a046cd3Eric Dumazet dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; 50954a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger dev->netdev_ops = &macvlan_netdev_ops; 510b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->destructor = free_netdev; 5113b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger dev->header_ops = &macvlan_hard_header_ops, 512b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->ethtool_ops = &macvlan_ethtool_ops; 513b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->tx_queue_len = 0; 514b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 515b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 516b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_port_create(struct net_device *dev) 517b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 518b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 519b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int i; 520ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko int err; 521b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 522b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (dev->type != ARPHRD_ETHER || dev->flags & IFF_LOOPBACK) 523b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 524b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 525b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = kzalloc(sizeof(*port), GFP_KERNEL); 526b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 527b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -ENOMEM; 528b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 529b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port->dev = dev; 530b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy INIT_LIST_HEAD(&port->vlans); 531b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy for (i = 0; i < MACVLAN_HASH_SIZE; i++) 532b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy INIT_HLIST_HEAD(&port->vlan_hash[i]); 533b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rcu_assign_pointer(dev->macvlan_port, port); 534ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko 535ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko err = netdev_rx_handler_register(dev, macvlan_handle_frame); 536ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko if (err) { 537ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko rcu_assign_pointer(dev->macvlan_port, NULL); 538ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko kfree(port); 539ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko } 540ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko 541ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko return err; 542b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 543b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 5448b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirkostatic void macvlan_port_rcu_free(struct rcu_head *head) 5458b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko{ 5468b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko struct macvlan_port *port; 5478b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko 5488b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko port = container_of(head, struct macvlan_port, rcu); 5498b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko kfree(port); 5508b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko} 5518b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko 552b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_port_destroy(struct net_device *dev) 553b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 554b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = dev->macvlan_port; 555b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 556ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko netdev_rx_handler_unregister(dev); 557b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rcu_assign_pointer(dev->macvlan_port, NULL); 5588b37ef0a1f6c2401fea3536facfa21191936bd6cJiri Pirko call_rcu(&port->rcu, macvlan_port_rcu_free); 559b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 560b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 561b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) 562b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 563b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (tb[IFLA_ADDRESS]) { 564b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 565b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 566b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 567b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EADDRNOTAVAIL; 568b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 56927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 57027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann if (data && data[IFLA_MACVLAN_MODE]) { 57127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann switch (nla_get_u32(data[IFLA_MACVLAN_MODE])) { 57227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann case MACVLAN_MODE_PRIVATE: 57327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann case MACVLAN_MODE_VEPA: 57427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann case MACVLAN_MODE_BRIDGE: 57527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann break; 57627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann default: 57727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return -EINVAL; 57827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann } 57927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann } 580b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 581b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 582b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 5832c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazetstatic int macvlan_get_tx_queues(struct net *net, 5842c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet struct nlattr *tb[], 5852c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet unsigned int *num_tx_queues, 5862c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet unsigned int *real_num_tx_queues) 5872c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet{ 5882c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet struct net_device *real_dev; 5892c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 5902c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet if (!tb[IFLA_LINK]) 5912c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet return -EINVAL; 5922c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 5932c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet real_dev = __dev_get_by_index(net, nla_get_u32(tb[IFLA_LINK])); 5942c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet if (!real_dev) 5952c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet return -ENODEV; 5962c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 5972c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet *num_tx_queues = real_dev->num_tx_queues; 5982c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet *real_num_tx_queues = real_dev->real_num_tx_queues; 5992c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet return 0; 6002c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet} 6012c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 602fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannint macvlan_common_newlink(struct net *src_net, struct net_device *dev, 603fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct nlattr *tb[], struct nlattr *data[], 604fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann int (*receive)(struct sk_buff *skb), 605fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann int (*forward)(struct net_device *dev, 606fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct sk_buff *skb)) 607b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 608b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 609b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 610b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev; 611b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 612b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 613b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_LINK]) 614b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 615b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 61681adee47dfb608df3ad0b91d230fb3cef75f0060Eric W. Biederman lowerdev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK])); 617b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev == NULL) 618b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -ENODEV; 619b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 620b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman /* When creating macvlans on top of other macvlans - use 621b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman * the real device as the lowerdev. 622a6ca5f1dbe40470fcb1ecc921769d792a1e77ed9Patrick McHardy */ 623b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman if (lowerdev->rtnl_link_ops == dev->rtnl_link_ops) { 624b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman struct macvlan_dev *lowervlan = netdev_priv(lowerdev); 625b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman lowerdev = lowervlan->lowerdev; 626b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman } 627a6ca5f1dbe40470fcb1ecc921769d792a1e77ed9Patrick McHardy 628b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_MTU]) 629b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->mtu = lowerdev->mtu; 630b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy else if (dev->mtu > lowerdev->mtu) 631b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 632b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 633b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_ADDRESS]) 634b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy random_ether_addr(dev->dev_addr); 635b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 636b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev->macvlan_port == NULL) { 637b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = macvlan_port_create(lowerdev); 638b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 639b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 640b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 641b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = lowerdev->macvlan_port; 642b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 643b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->lowerdev = lowerdev; 644b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->dev = dev; 645b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->port = port; 646fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->receive = receive; 647fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->forward = forward; 648b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 64927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann vlan->mode = MACVLAN_MODE_VEPA; 65027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann if (data && data[IFLA_MACVLAN_MODE]) 65127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); 65227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 653b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = register_netdevice(dev); 654b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 655f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko goto destroy_port; 656b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 657b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_add_tail(&vlan->list, &port->vlans); 658fc4a7489663250360cd40d5adf06a08d1c5d54dfPatrick Mullaney netif_stacked_transfer_operstate(lowerdev, dev); 659f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko 660b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 661f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko 662f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirkodestroy_port: 663f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko if (list_empty(&port->vlans)) 664f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko macvlan_port_destroy(lowerdev); 665f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko 666f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko return err; 667b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 668fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_common_newlink); 669b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 670fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannstatic int macvlan_newlink(struct net *src_net, struct net_device *dev, 671fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct nlattr *tb[], struct nlattr *data[]) 672fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann{ 673fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return macvlan_common_newlink(src_net, dev, tb, data, 674fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann netif_rx, 675fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann dev_forward_skb); 676fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann} 677fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann 678fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannvoid macvlan_dellink(struct net_device *dev, struct list_head *head) 679b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 680b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 681b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = vlan->port; 682b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 683b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_del(&vlan->list); 68423289a37e2b127dfc4de1313fba15bb4c9f0cd5bEric Dumazet unregister_netdevice_queue(dev, head); 685b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 686b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (list_empty(&port->vlans)) 6877312096454b6cd71267eaa3d0efb408e449e9ff3Patrick McHardy macvlan_port_destroy(port->dev); 688b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 689fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_dellink); 690b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 69127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic int macvlan_changelink(struct net_device *dev, 69227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann struct nlattr *tb[], struct nlattr *data[]) 69327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann{ 69427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann struct macvlan_dev *vlan = netdev_priv(dev); 69527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann if (data && data[IFLA_MACVLAN_MODE]) 69627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); 69727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return 0; 69827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann} 69927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 70027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic size_t macvlan_get_size(const struct net_device *dev) 70127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann{ 70227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return nla_total_size(4); 70327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann} 70427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 70527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic int macvlan_fill_info(struct sk_buff *skb, 70627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann const struct net_device *dev) 70727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann{ 70827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann struct macvlan_dev *vlan = netdev_priv(dev); 70927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 71027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann NLA_PUT_U32(skb, IFLA_MACVLAN_MODE, vlan->mode); 71127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return 0; 71227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 71327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannnla_put_failure: 71427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return -EMSGSIZE; 71527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann} 71627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 71727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = { 71827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann [IFLA_MACVLAN_MODE] = { .type = NLA_U32 }, 71927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann}; 72027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 721fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannint macvlan_link_register(struct rtnl_link_ops *ops) 722fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann{ 723fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann /* common fields */ 724fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->priv_size = sizeof(struct macvlan_dev); 725fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->get_tx_queues = macvlan_get_tx_queues; 726fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->setup = macvlan_setup; 727fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->validate = macvlan_validate; 728fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->maxtype = IFLA_MACVLAN_MAX; 729fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->policy = macvlan_policy; 730fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->changelink = macvlan_changelink; 731fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->get_size = macvlan_get_size; 732fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->fill_info = macvlan_fill_info; 733fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann 734fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return rtnl_link_register(ops); 735fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann}; 736fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_link_register); 737fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann 738fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannstatic struct rtnl_link_ops macvlan_link_ops = { 739b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .kind = "macvlan", 740b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .newlink = macvlan_newlink, 741b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .dellink = macvlan_dellink, 742b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 743b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 744b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_device_event(struct notifier_block *unused, 745b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned long event, void *ptr) 746b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 747b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev = ptr; 748b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan, *next; 749b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 750b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 751b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = dev->macvlan_port; 752b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 753b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NOTIFY_DONE; 754b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 755b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy switch (event) { 756b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_CHANGE: 757b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry(vlan, &port->vlans, list) 758fc4a7489663250360cd40d5adf06a08d1c5d54dfPatrick Mullaney netif_stacked_transfer_operstate(vlan->lowerdev, 759fc4a7489663250360cd40d5adf06a08d1c5d54dfPatrick Mullaney vlan->dev); 760b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 761b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_FEAT_CHANGE: 762b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry(vlan, &port->vlans, list) { 763b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->dev->features = dev->features & MACVLAN_FEATURES; 7648c2acc53fd7987493f11640e266cf7130591e764Patrick McHardy vlan->dev->gso_max_size = dev->gso_max_size; 765b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netdev_features_change(vlan->dev); 766b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 767b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 768b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_UNREGISTER: 769b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry_safe(vlan, next, &port->vlans, list) 770fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->dev->rtnl_link_ops->dellink(vlan->dev, NULL); 771b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 7721c01fe14a87332cc88266fbd6e598319322eb96fJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 7731c01fe14a87332cc88266fbd6e598319322eb96fJiri Pirko /* Forbid underlaying device to change its type. */ 7741c01fe14a87332cc88266fbd6e598319322eb96fJiri Pirko return NOTIFY_BAD; 775b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 776b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NOTIFY_DONE; 777b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 778b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 779b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct notifier_block macvlan_notifier_block __read_mostly = { 780b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .notifier_call = macvlan_device_event, 781b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 782b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 783b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int __init macvlan_init_module(void) 784b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 785b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 786b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 787b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy register_netdevice_notifier(&macvlan_notifier_block); 788b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 789fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann err = macvlan_link_register(&macvlan_link_ops); 790b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 791b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy goto err1; 792b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 793b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyerr1: 794b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice_notifier(&macvlan_notifier_block); 795b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 796b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 797b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 798b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void __exit macvlan_cleanup_module(void) 799b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 800b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rtnl_link_unregister(&macvlan_link_ops); 801b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice_notifier(&macvlan_notifier_block); 802b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 803b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 804b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardymodule_init(macvlan_init_module); 805b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardymodule_exit(macvlan_cleanup_module); 806b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 807b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_LICENSE("GPL"); 808b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); 809b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_DESCRIPTION("Driver for MAC address based VLANs"); 810b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_ALIAS_RTNL_LINK("macvlan"); 811