macvlan.c revision ab95bfe01f9872459c8678572ccadbf646badad0
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; 40b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 41b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 42b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port, 43b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const unsigned char *addr) 44b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 45b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan; 46b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node *n; 47b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 48b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[addr[5]], hlist) { 49ac06713d55d450cbc9ef871b1b238409238f0fe0Eric Dumazet if (!compare_ether_addr_64bits(vlan->dev->dev_addr, addr)) 50b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return vlan; 51b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 52b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 53b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 54b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 55f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic void macvlan_hash_add(struct macvlan_dev *vlan) 56f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 57f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman struct macvlan_port *port = vlan->port; 58f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman const unsigned char *addr = vlan->dev->dev_addr; 59f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 60f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman hlist_add_head_rcu(&vlan->hlist, &port->vlan_hash[addr[5]]); 61f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 62f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 63f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic void macvlan_hash_del(struct macvlan_dev *vlan) 64f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 65f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman hlist_del_rcu(&vlan->hlist); 66f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman synchronize_rcu(); 67f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 68f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 69f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic void macvlan_hash_change_addr(struct macvlan_dev *vlan, 70f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman const unsigned char *addr) 71f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 72f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_del(vlan); 73f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Now that we are unhashed it is safe to change the device 74f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman * address without confusing packet delivery. 75f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman */ 76f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman memcpy(vlan->dev->dev_addr, addr, ETH_ALEN); 77f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_add(vlan); 78f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 79f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 80f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biedermanstatic int macvlan_addr_busy(const struct macvlan_port *port, 81f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman const unsigned char *addr) 82f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman{ 83f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Test to see if the specified multicast address is 84f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman * currently in use by the underlying device or 85f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman * another macvlan. 86f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman */ 87ac06713d55d450cbc9ef871b1b238409238f0fe0Eric Dumazet if (!compare_ether_addr_64bits(port->dev->dev_addr, addr)) 88f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return 1; 89f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 90f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (macvlan_hash_lookup(port, addr)) 91f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return 1; 92f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 93f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return 0; 94f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman} 95f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 96a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 97fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannstatic int macvlan_broadcast_one(struct sk_buff *skb, 98fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann const struct macvlan_dev *vlan, 99618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct ethhdr *eth, bool local) 100a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann{ 101fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct net_device *dev = vlan->dev; 102a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann if (!skb) 103a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann return NET_RX_DROP; 104a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 105618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (local) 106fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return vlan->forward(dev, skb); 107618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 108a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann skb->dev = dev; 109a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann if (!compare_ether_addr_64bits(eth->h_dest, 110a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann dev->broadcast)) 111a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann skb->pkt_type = PACKET_BROADCAST; 112a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann else 113a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann skb->pkt_type = PACKET_MULTICAST; 114a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 115fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return vlan->receive(skb); 116a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann} 117a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann 118b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_broadcast(struct sk_buff *skb, 119618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_port *port, 120618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann struct net_device *src, 121618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann enum macvlan_mode mode) 122b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 123b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct ethhdr *eth = eth_hdr(skb); 124b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan; 125b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct hlist_node *n; 126b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct sk_buff *nskb; 127b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int i; 128a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann int err; 129b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 130efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy if (skb->protocol == htons(ETH_P_PAUSE)) 131efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy return; 132efbbced361f3ff4ff9e85310ccff894185c4d904Patrick McHardy 133b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy for (i = 0; i < MACVLAN_HASH_SIZE; i++) { 134b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[i], hlist) { 135618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (vlan->dev == src || !(vlan->mode & mode)) 136618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann continue; 137618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 138b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy nskb = skb_clone(skb, GFP_ATOMIC); 139fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann err = macvlan_broadcast_one(nskb, vlan, eth, 140618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann mode == MACVLAN_MODE_BRIDGE); 141a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann macvlan_count_rx(vlan, skb->len + ETH_HLEN, 142a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann err == NET_RX_SUCCESS, 1); 143b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 144b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 145b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 146b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 147b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* called under rcu_read_lock() from netif_receive_skb */ 148ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirkostatic struct sk_buff *macvlan_handle_frame(struct sk_buff *skb) 149b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 150ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko struct macvlan_port *port; 151b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct ethhdr *eth = eth_hdr(skb); 152b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan; 153618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_dev *src; 154b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev; 155a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann unsigned int len; 156b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 157ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko port = rcu_dereference(skb->dev->macvlan_port); 158b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (is_multicast_ether_addr(eth->h_dest)) { 159618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann src = macvlan_hash_lookup(port, eth->h_source); 160618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (!src) 161618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* frame comes from an external address */ 162618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, NULL, 163618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_PRIVATE | 164618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_VEPA | 165618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_BRIDGE); 166618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann else if (src->mode == MACVLAN_MODE_VEPA) 167618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* flood to everyone except source */ 168618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, src->dev, 169618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_VEPA | 170618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_BRIDGE); 171618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann else if (src->mode == MACVLAN_MODE_BRIDGE) 172618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* 173618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann * flood only to VEPA ports, bridge ports 174618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann * already saw the frame on the way out. 175618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann */ 176618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, src->dev, 177618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann MACVLAN_MODE_VEPA); 178b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 179b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 180b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 181b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan = macvlan_hash_lookup(port, eth->h_dest); 182b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (vlan == NULL) 183b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return skb; 184b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 185b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev = vlan->dev; 186b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (unlikely(!(dev->flags & IFF_UP))) { 187b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy kfree_skb(skb); 188b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 189b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 190a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann len = skb->len + ETH_HLEN; 191b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb = skb_share_check(skb, GFP_ATOMIC); 192a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann macvlan_count_rx(vlan, len, skb != NULL, 0); 193a1e514c5d0397b5581721aad9b303f7df83b103dArnd Bergmann if (!skb) 194b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 195b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 196b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->dev = dev; 197b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy skb->pkt_type = PACKET_HOST; 198b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 199fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->receive(skb); 200b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NULL; 201b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 202b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 203618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmannstatic int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) 204618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann{ 205618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_dev *vlan = netdev_priv(dev); 206618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_port *port = vlan->port; 207618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct macvlan_dev *dest; 208618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 209618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (vlan->mode == MACVLAN_MODE_BRIDGE) { 210618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann const struct ethhdr *eth = (void *)skb->data; 211618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 212618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann /* send to other bridge ports directly */ 213618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (is_multicast_ether_addr(eth->h_dest)) { 214618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_broadcast(skb, port, dev, MACVLAN_MODE_BRIDGE); 215618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann goto xmit_world; 216618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann } 217618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 218618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann dest = macvlan_hash_lookup(port, eth->h_dest); 219618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann if (dest && dest->mode == MACVLAN_MODE_BRIDGE) { 220618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann unsigned int length = skb->len + ETH_HLEN; 221fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann int ret = dest->forward(dest->dev, skb); 222618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann macvlan_count_rx(dest, length, 223618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann ret == NET_RX_SUCCESS, 0); 224618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 225618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann return NET_XMIT_SUCCESS; 226618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann } 227618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann } 228618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 229618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmannxmit_world: 2308a83a00b0735190384a348156837918271034144Arnd Bergmann skb_set_dev(skb, vlan->lowerdev); 231618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann return dev_queue_xmit(skb); 232618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann} 233618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann 234fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannnetdev_tx_t macvlan_start_xmit(struct sk_buff *skb, 235fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct net_device *dev) 236b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 2372c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet int i = skb_get_queue_mapping(skb); 2382c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet struct netdev_queue *txq = netdev_get_tx_queue(dev, i); 239b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int len = skb->len; 240b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int ret; 241b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 242618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9Arnd Bergmann ret = macvlan_queue_xmit(skb, dev); 2432d6c9ffcca7808f42ba6b953da0ba60e19a9cbbdEric Dumazet if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { 2442c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet txq->tx_packets++; 2452c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet txq->tx_bytes += len; 2462c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet } else 2472c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet txq->tx_dropped++; 2482c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 249cbbef5e183079455763fc470ccf69008f92ab4b6Patrick McHardy return ret; 250b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 251fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_start_xmit); 252b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 253b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_hard_header(struct sk_buff *skb, struct net_device *dev, 2543b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger unsigned short type, const void *daddr, 2553b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger const void *saddr, unsigned len) 256b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 257b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 258b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 259b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 2600c4e85813d0a94eeb8bf813397a4907bdd7bb610Stephen Hemminger return dev_hard_header(skb, lowerdev, type, daddr, 2610c4e85813d0a94eeb8bf813397a4907bdd7bb610Stephen Hemminger saddr ? : dev->dev_addr, len); 262b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 263b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 2643b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemmingerstatic const struct header_ops macvlan_hard_header_ops = { 2653b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .create = macvlan_hard_header, 2663b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .rebuild = eth_rebuild_header, 2673b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .parse = eth_header_parse, 2683b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .cache = eth_header_cache, 2693b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .cache_update = eth_header_cache_update, 2703b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger}; 2713b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger 272b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_open(struct net_device *dev) 273b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 274b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 275b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 276b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 277b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 278f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman err = -EBUSY; 279f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (macvlan_addr_busy(vlan->port, dev->dev_addr)) 280f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman goto out; 281f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 282a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko err = dev_uc_add(lowerdev, dev->dev_addr); 283b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 284b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen goto out; 285b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen if (dev->flags & IFF_ALLMULTI) { 286b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen err = dev_set_allmulti(lowerdev, 1); 287b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen if (err < 0) 288b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen goto del_unicast; 289b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen } 290f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_add(vlan); 291b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 292b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen 293b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chendel_unicast: 294a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko dev_uc_del(lowerdev, dev->dev_addr); 295b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chenout: 296b89fb7da2f9a69dd34ff10d45f66baa40ff8c0e5Wang Chen return err; 297b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 298b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 299b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_stop(struct net_device *dev) 300b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 301b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 302b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 303b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 304b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_mc_unsync(lowerdev, dev); 305b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (dev->flags & IFF_ALLMULTI) 306b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_set_allmulti(lowerdev, -1); 307b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 308a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko dev_uc_del(lowerdev, dev->dev_addr); 309b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 310f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_del(vlan); 311b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 312b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 313b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 314ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardystatic int macvlan_set_mac_address(struct net_device *dev, void *p) 315ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy{ 316ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 317ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 318ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy struct sockaddr *addr = p; 319ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy int err; 320ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 321ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy if (!is_valid_ether_addr(addr->sa_data)) 322ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return -EADDRNOTAVAIL; 323ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 324f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (!(dev->flags & IFF_UP)) { 325f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Just copy in the new address */ 326f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); 327f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman } else { 328f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman /* Rehash and update the device filters */ 329f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman if (macvlan_addr_busy(vlan->port, addr->sa_data)) 330f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return -EBUSY; 331ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 332a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko err = dev_uc_add(lowerdev, addr->sa_data); 333ccffad25b5136958d4769ed6de5e87992dd9c65cJiri Pirko if (err) 334f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman return err; 335ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 336a748ee2426817a95b1f03012d8f339c45c722ae1Jiri Pirko dev_uc_del(lowerdev, dev->dev_addr); 337f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman 338f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman macvlan_hash_change_addr(vlan, addr->sa_data); 339f9ac30f080d23ef0a2d4a1b7c6806c9a21c0f324Eric Biederman } 340ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy return 0; 341ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy} 342ad5d20a63940fcfb40af76ba06148f36d5d0b433Patrick McHardy 343b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_change_rx_flags(struct net_device *dev, int change) 344b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 345b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 346b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev = vlan->lowerdev; 347b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 348b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (change & IFF_ALLMULTI) 349b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_set_allmulti(lowerdev, dev->flags & IFF_ALLMULTI ? 1 : -1); 350b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 351b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 352b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_set_multicast_list(struct net_device *dev) 353b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 354b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 355b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 356b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev_mc_sync(vlan->lowerdev, dev); 357b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 358b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 359b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_change_mtu(struct net_device *dev, int new_mtu) 360b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 361b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 362b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 363b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (new_mtu < 68 || vlan->lowerdev->mtu < new_mtu) 364b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 365b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->mtu = new_mtu; 366b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 367b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 368b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 369b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy/* 370b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * macvlan network devices have devices nesting below it and are a special 371b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * "super class" of normal network devices; split their locks off into a 372b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy * separate class since they always nest. 373b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy */ 374b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct lock_class_key macvlan_netdev_xmit_lock_key; 375cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Millerstatic struct lock_class_key macvlan_netdev_addr_lock_key; 376b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 377b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_FEATURES \ 378b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy (NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \ 379b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy NETIF_F_GSO | NETIF_F_TSO | NETIF_F_UFO | NETIF_F_GSO_ROBUST | \ 3806eb3a8553345ba2b4efd5390709e158289b9ece4Patrick Mullaney NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO) 381b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 382b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy#define MACVLAN_STATE_MASK \ 383b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT)) 384b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 385e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Millerstatic void macvlan_set_lockdep_class_one(struct net_device *dev, 386e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller struct netdev_queue *txq, 387e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller void *_unused) 388c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller{ 389c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller lockdep_set_class(&txq->_xmit_lock, 390c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller &macvlan_netdev_xmit_lock_key); 391c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller} 392c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 393c773e847ea8f6812804e40f52399c6921a00eab1David S. Millerstatic void macvlan_set_lockdep_class(struct net_device *dev) 394c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller{ 395cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Miller lockdep_set_class(&dev->addr_list_lock, 396cf508b1211dbe576778ff445ea1b4b0bcfa5c4eaDavid S. Miller &macvlan_netdev_addr_lock_key); 397e8a0464cc950972824e2e128028ae3db666ec1edDavid S. Miller netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL); 398c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller} 399c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 400b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_init(struct net_device *dev) 401b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 402b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 403b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct net_device *lowerdev = vlan->lowerdev; 404b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 405b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->state = (dev->state & ~MACVLAN_STATE_MASK) | 406b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy (lowerdev->state & MACVLAN_STATE_MASK); 407b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->features = lowerdev->features & MACVLAN_FEATURES; 4088c2acc53fd7987493f11640e266cf7130591e764Patrick McHardy dev->gso_max_size = lowerdev->gso_max_size; 409b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->iflink = lowerdev->ifindex; 410ef5c89967d50042b29937fb724e057c1aa3c5207sg.tweak@gmail.com dev->hard_header_len = lowerdev->hard_header_len; 411b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 412c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller macvlan_set_lockdep_class(dev); 413c773e847ea8f6812804e40f52399c6921a00eab1David S. Miller 414fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet vlan->rx_stats = alloc_percpu(struct macvlan_rx_stats); 415fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet if (!vlan->rx_stats) 416fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet return -ENOMEM; 417fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 418b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 419b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 420b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 421fccaf71011b171883efee5bae321eac4760584d1Eric Dumazetstatic void macvlan_uninit(struct net_device *dev) 422fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet{ 423fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct macvlan_dev *vlan = netdev_priv(dev); 424fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 425fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet free_percpu(vlan->rx_stats); 426fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet} 427fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 428fccaf71011b171883efee5bae321eac4760584d1Eric Dumazetstatic struct net_device_stats *macvlan_dev_get_stats(struct net_device *dev) 429fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet{ 430fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct net_device_stats *stats = &dev->stats; 431fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct macvlan_dev *vlan = netdev_priv(dev); 432fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 433fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet dev_txq_stats_fold(dev, stats); 434fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 435fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet if (vlan->rx_stats) { 436fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet struct macvlan_rx_stats *p, rx = {0}; 437fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet int i; 438fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 439fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet for_each_possible_cpu(i) { 440fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet p = per_cpu_ptr(vlan->rx_stats, i); 441fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.rx_packets += p->rx_packets; 442fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.rx_bytes += p->rx_bytes; 443fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.rx_errors += p->rx_errors; 444fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet rx.multicast += p->multicast; 445fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet } 446fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_packets = rx.rx_packets; 447fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_bytes = rx.rx_bytes; 448fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_errors = rx.rx_errors; 449fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->rx_dropped = rx.rx_errors; 450fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet stats->multicast = rx.multicast; 451fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet } 452fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet return stats; 453fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet} 454fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet 455b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_ethtool_get_drvinfo(struct net_device *dev, 456b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct ethtool_drvinfo *drvinfo) 457b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 458b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy snprintf(drvinfo->driver, 32, "macvlan"); 459b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy snprintf(drvinfo->version, 32, "0.1"); 460b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 461b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 462b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic u32 macvlan_ethtool_get_rx_csum(struct net_device *dev) 463b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 464b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy const struct macvlan_dev *vlan = netdev_priv(dev); 465b1b67dd45a6b629eb41553856805aaa1614fbb83Patrick McHardy return dev_ethtool_get_rx_csum(vlan->lowerdev); 466b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 467b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 4689edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemmingerstatic int macvlan_ethtool_get_settings(struct net_device *dev, 4699edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger struct ethtool_cmd *cmd) 4709edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger{ 4719edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger const struct macvlan_dev *vlan = netdev_priv(dev); 472b1b67dd45a6b629eb41553856805aaa1614fbb83Patrick McHardy return dev_ethtool_get_settings(vlan->lowerdev, cmd); 4739edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger} 4749edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 4759edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemmingerstatic u32 macvlan_ethtool_get_flags(struct net_device *dev) 4769edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger{ 4779edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger const struct macvlan_dev *vlan = netdev_priv(dev); 478b1b67dd45a6b629eb41553856805aaa1614fbb83Patrick McHardy return dev_ethtool_get_flags(vlan->lowerdev); 4799edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger} 4809edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger 481b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic const struct ethtool_ops macvlan_ethtool_ops = { 482b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_link = ethtool_op_get_link, 4839edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger .get_settings = macvlan_ethtool_get_settings, 484b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_rx_csum = macvlan_ethtool_get_rx_csum, 485b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .get_drvinfo = macvlan_ethtool_get_drvinfo, 4869edb8bb68b5ea63061ba833831b00c229ac9fbd2Stephen Hemminger .get_flags = macvlan_ethtool_get_flags, 487b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 488b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 48954a30c975b6b27c0c9268461b647576b146d39bbStephen Hemmingerstatic const struct net_device_ops macvlan_netdev_ops = { 49054a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_init = macvlan_init, 491fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet .ndo_uninit = macvlan_uninit, 49254a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_open = macvlan_open, 49354a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_stop = macvlan_stop, 494008298231abbeb91bc7be9e8b078607b816d1a4aStephen Hemminger .ndo_start_xmit = macvlan_start_xmit, 49554a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_change_mtu = macvlan_change_mtu, 49654a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_change_rx_flags = macvlan_change_rx_flags, 49754a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_set_mac_address = macvlan_set_mac_address, 49854a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_set_multicast_list = macvlan_set_multicast_list, 499fccaf71011b171883efee5bae321eac4760584d1Eric Dumazet .ndo_get_stats = macvlan_dev_get_stats, 50054a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger .ndo_validate_addr = eth_validate_addr, 50154a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger}; 50254a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger 503b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_setup(struct net_device *dev) 504b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 505b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy ether_setup(dev); 506b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 50793f154b594fe47e4a7e5358b309add449a046cd3Eric Dumazet dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; 50854a30c975b6b27c0c9268461b647576b146d39bbStephen Hemminger dev->netdev_ops = &macvlan_netdev_ops; 509b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->destructor = free_netdev; 5103b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger dev->header_ops = &macvlan_hard_header_ops, 511b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->ethtool_ops = &macvlan_ethtool_ops; 512b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->tx_queue_len = 0; 513b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 514b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 515b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_port_create(struct net_device *dev) 516b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 517b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 518b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned int i; 519ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko int err; 520b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 521b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (dev->type != ARPHRD_ETHER || dev->flags & IFF_LOOPBACK) 522b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 523b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 524b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = kzalloc(sizeof(*port), GFP_KERNEL); 525b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 526b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -ENOMEM; 527b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 528b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port->dev = dev; 529b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy INIT_LIST_HEAD(&port->vlans); 530b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy for (i = 0; i < MACVLAN_HASH_SIZE; i++) 531b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy INIT_HLIST_HEAD(&port->vlan_hash[i]); 532b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rcu_assign_pointer(dev->macvlan_port, port); 533ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko 534ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko err = netdev_rx_handler_register(dev, macvlan_handle_frame); 535ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko if (err) { 536ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko rcu_assign_pointer(dev->macvlan_port, NULL); 537ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko kfree(port); 538ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko } 539ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko 540ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko return err; 541b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 542b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 543b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void macvlan_port_destroy(struct net_device *dev) 544b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 545b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = dev->macvlan_port; 546b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 547ab95bfe01f9872459c8678572ccadbf646badad0Jiri Pirko netdev_rx_handler_unregister(dev); 548b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rcu_assign_pointer(dev->macvlan_port, NULL); 549b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy synchronize_rcu(); 550b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy kfree(port); 551b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 552b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 553b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) 554b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 555b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (tb[IFLA_ADDRESS]) { 556b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 557b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 558b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 559b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EADDRNOTAVAIL; 560b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 56127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 56227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann if (data && data[IFLA_MACVLAN_MODE]) { 56327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann switch (nla_get_u32(data[IFLA_MACVLAN_MODE])) { 56427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann case MACVLAN_MODE_PRIVATE: 56527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann case MACVLAN_MODE_VEPA: 56627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann case MACVLAN_MODE_BRIDGE: 56727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann break; 56827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann default: 56927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return -EINVAL; 57027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann } 57127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann } 572b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 573b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 574b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 5752c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazetstatic int macvlan_get_tx_queues(struct net *net, 5762c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet struct nlattr *tb[], 5772c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet unsigned int *num_tx_queues, 5782c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet unsigned int *real_num_tx_queues) 5792c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet{ 5802c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet struct net_device *real_dev; 5812c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 5822c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet if (!tb[IFLA_LINK]) 5832c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet return -EINVAL; 5842c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 5852c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet real_dev = __dev_get_by_index(net, nla_get_u32(tb[IFLA_LINK])); 5862c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet if (!real_dev) 5872c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet return -ENODEV; 5882c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 5892c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet *num_tx_queues = real_dev->num_tx_queues; 5902c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet *real_num_tx_queues = real_dev->real_num_tx_queues; 5912c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet return 0; 5922c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet} 5932c11455321f37da6fe6cc36353149f9ac9183334Eric Dumazet 594fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannint macvlan_common_newlink(struct net *src_net, struct net_device *dev, 595fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct nlattr *tb[], struct nlattr *data[], 596fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann int (*receive)(struct sk_buff *skb), 597fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann int (*forward)(struct net_device *dev, 598fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct sk_buff *skb)) 599b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 600b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 601b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 602b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *lowerdev; 603b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 604b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 605b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_LINK]) 606b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 607b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 60881adee47dfb608df3ad0b91d230fb3cef75f0060Eric W. Biederman lowerdev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK])); 609b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev == NULL) 610b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -ENODEV; 611b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 612b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman /* When creating macvlans on top of other macvlans - use 613b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman * the real device as the lowerdev. 614a6ca5f1dbe40470fcb1ecc921769d792a1e77ed9Patrick McHardy */ 615b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman if (lowerdev->rtnl_link_ops == dev->rtnl_link_ops) { 616b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman struct macvlan_dev *lowervlan = netdev_priv(lowerdev); 617b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman lowerdev = lowervlan->lowerdev; 618b0832a2961022a076c812384435b5f0290b3fc91Eric Biederman } 619a6ca5f1dbe40470fcb1ecc921769d792a1e77ed9Patrick McHardy 620b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_MTU]) 621b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy dev->mtu = lowerdev->mtu; 622b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy else if (dev->mtu > lowerdev->mtu) 623b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return -EINVAL; 624b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 625b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (!tb[IFLA_ADDRESS]) 626b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy random_ether_addr(dev->dev_addr); 627b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 628b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (lowerdev->macvlan_port == NULL) { 629b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = macvlan_port_create(lowerdev); 630b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 631b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 632b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 633b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = lowerdev->macvlan_port; 634b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 635b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->lowerdev = lowerdev; 636b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->dev = dev; 637b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->port = port; 638fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->receive = receive; 639fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->forward = forward; 640b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 64127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann vlan->mode = MACVLAN_MODE_VEPA; 64227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann if (data && data[IFLA_MACVLAN_MODE]) 64327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); 64427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 645b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy err = register_netdevice(dev); 646b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 647f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko goto destroy_port; 648b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 649b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_add_tail(&vlan->list, &port->vlans); 650fc4a7489663250360cd40d5adf06a08d1c5d54dfPatrick Mullaney netif_stacked_transfer_operstate(lowerdev, dev); 651f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko 652b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 653f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko 654f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirkodestroy_port: 655f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko if (list_empty(&port->vlans)) 656f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko macvlan_port_destroy(lowerdev); 657f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko 658f16d3d57486cd079b29ae7a6c3b31c90e69c9c44Jiri Pirko return err; 659b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 660fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_common_newlink); 661b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 662fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannstatic int macvlan_newlink(struct net *src_net, struct net_device *dev, 663fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann struct nlattr *tb[], struct nlattr *data[]) 664fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann{ 665fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return macvlan_common_newlink(src_net, dev, tb, data, 666fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann netif_rx, 667fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann dev_forward_skb); 668fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann} 669fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann 670fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannvoid macvlan_dellink(struct net_device *dev, struct list_head *head) 671b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 672b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan = netdev_priv(dev); 673b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port = vlan->port; 674b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 675b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_del(&vlan->list); 67623289a37e2b127dfc4de1313fba15bb4c9f0cd5bEric Dumazet unregister_netdevice_queue(dev, head); 677b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 678b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (list_empty(&port->vlans)) 6797312096454b6cd71267eaa3d0efb408e449e9ff3Patrick McHardy macvlan_port_destroy(port->dev); 680b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 681fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_dellink); 682b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 68327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic int macvlan_changelink(struct net_device *dev, 68427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann struct nlattr *tb[], struct nlattr *data[]) 68527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann{ 68627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann struct macvlan_dev *vlan = netdev_priv(dev); 68727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann if (data && data[IFLA_MACVLAN_MODE]) 68827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); 68927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return 0; 69027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann} 69127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 69227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic size_t macvlan_get_size(const struct net_device *dev) 69327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann{ 69427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return nla_total_size(4); 69527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann} 69627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 69727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic int macvlan_fill_info(struct sk_buff *skb, 69827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann const struct net_device *dev) 69927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann{ 70027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann struct macvlan_dev *vlan = netdev_priv(dev); 70127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 70227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann NLA_PUT_U32(skb, IFLA_MACVLAN_MODE, vlan->mode); 70327c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return 0; 70427c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 70527c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannnla_put_failure: 70627c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann return -EMSGSIZE; 70727c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann} 70827c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 70927c0b1a850cdea6298f573d835782f3337be913cArnd Bergmannstatic const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = { 71027c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann [IFLA_MACVLAN_MODE] = { .type = NLA_U32 }, 71127c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann}; 71227c0b1a850cdea6298f573d835782f3337be913cArnd Bergmann 713fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannint macvlan_link_register(struct rtnl_link_ops *ops) 714fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann{ 715fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann /* common fields */ 716fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->priv_size = sizeof(struct macvlan_dev); 717fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->get_tx_queues = macvlan_get_tx_queues; 718fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->setup = macvlan_setup; 719fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->validate = macvlan_validate; 720fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->maxtype = IFLA_MACVLAN_MAX; 721fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->policy = macvlan_policy; 722fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->changelink = macvlan_changelink; 723fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->get_size = macvlan_get_size; 724fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann ops->fill_info = macvlan_fill_info; 725fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann 726fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann return rtnl_link_register(ops); 727fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann}; 728fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd BergmannEXPORT_SYMBOL_GPL(macvlan_link_register); 729fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann 730fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmannstatic struct rtnl_link_ops macvlan_link_ops = { 731b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .kind = "macvlan", 732b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .newlink = macvlan_newlink, 733b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .dellink = macvlan_dellink, 734b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 735b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 736b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int macvlan_device_event(struct notifier_block *unused, 737b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unsigned long event, void *ptr) 738b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 739b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct net_device *dev = ptr; 740b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_dev *vlan, *next; 741b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy struct macvlan_port *port; 742b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 743b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy port = dev->macvlan_port; 744b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (port == NULL) 745b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NOTIFY_DONE; 746b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 747b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy switch (event) { 748b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_CHANGE: 749b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry(vlan, &port->vlans, list) 750fc4a7489663250360cd40d5adf06a08d1c5d54dfPatrick Mullaney netif_stacked_transfer_operstate(vlan->lowerdev, 751fc4a7489663250360cd40d5adf06a08d1c5d54dfPatrick Mullaney vlan->dev); 752b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 753b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_FEAT_CHANGE: 754b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry(vlan, &port->vlans, list) { 755b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy vlan->dev->features = dev->features & MACVLAN_FEATURES; 7568c2acc53fd7987493f11640e266cf7130591e764Patrick McHardy vlan->dev->gso_max_size = dev->gso_max_size; 757b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy netdev_features_change(vlan->dev); 758b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 759b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 760b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy case NETDEV_UNREGISTER: 761b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy list_for_each_entry_safe(vlan, next, &port->vlans, list) 762fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann vlan->dev->rtnl_link_ops->dellink(vlan->dev, NULL); 763b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy break; 7641c01fe14a87332cc88266fbd6e598319322eb96fJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 7651c01fe14a87332cc88266fbd6e598319322eb96fJiri Pirko /* Forbid underlaying device to change its type. */ 7661c01fe14a87332cc88266fbd6e598319322eb96fJiri Pirko return NOTIFY_BAD; 767b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy } 768b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return NOTIFY_DONE; 769b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 770b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 771b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic struct notifier_block macvlan_notifier_block __read_mostly = { 772b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy .notifier_call = macvlan_device_event, 773b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy}; 774b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 775b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic int __init macvlan_init_module(void) 776b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 777b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy int err; 778b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 779b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy register_netdevice_notifier(&macvlan_notifier_block); 780b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 781fc0663d6b5e6d8e9b57f872a644c0aafd82361b7Arnd Bergmann err = macvlan_link_register(&macvlan_link_ops); 782b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy if (err < 0) 783b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy goto err1; 784b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return 0; 785b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyerr1: 786b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice_notifier(&macvlan_notifier_block); 787b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy return err; 788b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 789b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 790b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardystatic void __exit macvlan_cleanup_module(void) 791b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy{ 792b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy rtnl_link_unregister(&macvlan_link_ops); 793b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy unregister_netdevice_notifier(&macvlan_notifier_block); 794b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy} 795b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 796b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardymodule_init(macvlan_init_module); 797b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardymodule_exit(macvlan_cleanup_module); 798b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardy 799b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_LICENSE("GPL"); 800b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); 801b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_DESCRIPTION("Driver for MAC address based VLANs"); 802b863ceb7ddcea8c55fcf1d7b2ac591d50aa7ed53Patrick McHardyMODULE_ALIAS_RTNL_LINK("macvlan"); 803