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drivers/net/macvlan.c
41.1 KB
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/* * Copyright (c) 2007 Patrick McHardy <kaber@trash.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * The code this is based on carried the following copyright notice: * --- * (C) Copyright 2001-2006 * Alex Zeffertt, Cambridge Broadband Ltd, ajz@cambridgebroadband.com * Re-worked by Ben Greear <greearb@candelatech.com> * --- */ #include <linux/kernel.h> #include <linux/types.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/string.h> |
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#include <linux/rculist.h> |
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#include <linux/notifier.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/if_arp.h> |
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#include <linux/if_vlan.h> |
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#include <linux/if_link.h> #include <linux/if_macvlan.h> |
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#include <linux/hash.h> |
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#include <linux/workqueue.h> |
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#include <net/rtnetlink.h> |
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#include <net/xfrm.h> |
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#include <linux/netpoll.h> |
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|
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#define MACVLAN_HASH_BITS 8 #define MACVLAN_HASH_SIZE (1<<MACVLAN_HASH_BITS) |
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#define MACVLAN_BC_QUEUE_LEN 1000 |
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struct macvlan_port { struct net_device *dev; struct hlist_head vlan_hash[MACVLAN_HASH_SIZE]; struct list_head vlans; |
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struct rcu_head rcu; |
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struct sk_buff_head bc_queue; struct work_struct bc_work; |
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bool passthru; |
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int count; |
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struct hlist_head vlan_source_hash[MACVLAN_HASH_SIZE]; |
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DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ); |
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}; struct macvlan_source_entry { struct hlist_node hlist; struct macvlan_dev *vlan; unsigned char addr[6+2] __aligned(sizeof(u16)); struct rcu_head rcu; |
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}; |
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struct macvlan_skb_cb { const struct macvlan_dev *src; }; #define MACVLAN_SKB_CB(__skb) ((struct macvlan_skb_cb *)&((__skb)->cb[0])) |
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static void macvlan_port_destroy(struct net_device *dev); |
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/* Hash Ethernet address */ static u32 macvlan_eth_hash(const unsigned char *addr) { u64 value = get_unaligned((u64 *)addr); /* only want 6 bytes */ #ifdef __BIG_ENDIAN value >>= 16; #else value <<= 16; #endif return hash_64(value, MACVLAN_HASH_BITS); } |
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static struct macvlan_port *macvlan_port_get_rcu(const struct net_device *dev) { return rcu_dereference(dev->rx_handler_data); } static struct macvlan_port *macvlan_port_get_rtnl(const struct net_device *dev) { return rtnl_dereference(dev->rx_handler_data); } |
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#define macvlan_port_exists(dev) (dev->priv_flags & IFF_MACVLAN_PORT) |
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static struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port, const unsigned char *addr) { struct macvlan_dev *vlan; |
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u32 idx = macvlan_eth_hash(addr); |
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|
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hlist_for_each_entry_rcu(vlan, &port->vlan_hash[idx], hlist) { |
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if (ether_addr_equal_64bits(vlan->dev->dev_addr, addr)) |
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return vlan; } return NULL; } |
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static struct macvlan_source_entry *macvlan_hash_lookup_source( const struct macvlan_dev *vlan, const unsigned char *addr) { struct macvlan_source_entry *entry; u32 idx = macvlan_eth_hash(addr); struct hlist_head *h = &vlan->port->vlan_source_hash[idx]; hlist_for_each_entry_rcu(entry, h, hlist) { if (ether_addr_equal_64bits(entry->addr, addr) && entry->vlan == vlan) return entry; } return NULL; } static int macvlan_hash_add_source(struct macvlan_dev *vlan, const unsigned char *addr) { struct macvlan_port *port = vlan->port; struct macvlan_source_entry *entry; struct hlist_head *h; entry = macvlan_hash_lookup_source(vlan, addr); if (entry) return 0; entry = kmalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return -ENOMEM; ether_addr_copy(entry->addr, addr); entry->vlan = vlan; h = &port->vlan_source_hash[macvlan_eth_hash(addr)]; hlist_add_head_rcu(&entry->hlist, h); vlan->macaddr_count++; return 0; } |
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static void macvlan_hash_add(struct macvlan_dev *vlan) { struct macvlan_port *port = vlan->port; const unsigned char *addr = vlan->dev->dev_addr; |
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u32 idx = macvlan_eth_hash(addr); |
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|
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hlist_add_head_rcu(&vlan->hlist, &port->vlan_hash[idx]); } static void macvlan_hash_del_source(struct macvlan_source_entry *entry) { hlist_del_rcu(&entry->hlist); kfree_rcu(entry, rcu); |
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} |
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static void macvlan_hash_del(struct macvlan_dev *vlan, bool sync) |
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{ hlist_del_rcu(&vlan->hlist); |
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if (sync) synchronize_rcu(); |
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} static void macvlan_hash_change_addr(struct macvlan_dev *vlan, const unsigned char *addr) { |
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macvlan_hash_del(vlan, true); |
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/* Now that we are unhashed it is safe to change the device * address without confusing packet delivery. */ memcpy(vlan->dev->dev_addr, addr, ETH_ALEN); macvlan_hash_add(vlan); } static int macvlan_addr_busy(const struct macvlan_port *port, const unsigned char *addr) { /* Test to see if the specified multicast address is * currently in use by the underlying device or * another macvlan. */ |
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if (ether_addr_equal_64bits(port->dev->dev_addr, addr)) |
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return 1; if (macvlan_hash_lookup(port, addr)) return 1; return 0; } |
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|
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static int macvlan_broadcast_one(struct sk_buff *skb, const struct macvlan_dev *vlan, |
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const struct ethhdr *eth, bool local) |
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{ |
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struct net_device *dev = vlan->dev; |
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|
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if (local) |
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return __dev_forward_skb(dev, skb); |
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|
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skb->dev = dev; |
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if (ether_addr_equal_64bits(eth->h_dest, dev->broadcast)) |
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skb->pkt_type = PACKET_BROADCAST; else skb->pkt_type = PACKET_MULTICAST; |
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return 0; |
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} |
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static u32 macvlan_hash_mix(const struct macvlan_dev *vlan) { return (u32)(((unsigned long)vlan) >> L1_CACHE_SHIFT); } static unsigned int mc_hash(const struct macvlan_dev *vlan, const unsigned char *addr) |
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{ u32 val = __get_unaligned_cpu32(addr + 2); |
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val ^= macvlan_hash_mix(vlan); |
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return hash_32(val, MACVLAN_MC_FILTER_BITS); } |
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static void macvlan_broadcast(struct sk_buff *skb, |
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const struct macvlan_port *port, struct net_device *src, enum macvlan_mode mode) |
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{ const struct ethhdr *eth = eth_hdr(skb); const struct macvlan_dev *vlan; |
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struct sk_buff *nskb; unsigned int i; |
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int err; |
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unsigned int hash; |
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|
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if (skb->protocol == htons(ETH_P_PAUSE)) return; |
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for (i = 0; i < MACVLAN_HASH_SIZE; i++) { |
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hlist_for_each_entry_rcu(vlan, &port->vlan_hash[i], hlist) { |
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if (vlan->dev == src || !(vlan->mode & mode)) continue; |
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hash = mc_hash(vlan, eth->h_dest); |
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if (!test_bit(hash, vlan->mc_filter)) continue; |
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err = NET_RX_DROP; |
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nskb = skb_clone(skb, GFP_ATOMIC); |
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if (likely(nskb)) err = macvlan_broadcast_one( nskb, vlan, eth, |
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mode == MACVLAN_MODE_BRIDGE) ?: netif_rx_ni(nskb); |
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macvlan_count_rx(vlan, skb->len + ETH_HLEN, |
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err == NET_RX_SUCCESS, true); |
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} } } |
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static void macvlan_process_broadcast(struct work_struct *w) |
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{ |
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struct macvlan_port *port = container_of(w, struct macvlan_port, bc_work); struct sk_buff *skb; struct sk_buff_head list; |
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__skb_queue_head_init(&list); |
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spin_lock_bh(&port->bc_queue.lock); skb_queue_splice_tail_init(&port->bc_queue, &list); spin_unlock_bh(&port->bc_queue.lock); while ((skb = __skb_dequeue(&list))) { const struct macvlan_dev *src = MACVLAN_SKB_CB(skb)->src; rcu_read_lock(); |
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|
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if (!src) /* frame comes from an external address */ macvlan_broadcast(skb, port, NULL, MACVLAN_MODE_PRIVATE | MACVLAN_MODE_VEPA | |
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MACVLAN_MODE_PASSTHRU| |
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MACVLAN_MODE_BRIDGE); else if (src->mode == MACVLAN_MODE_VEPA) /* flood to everyone except source */ macvlan_broadcast(skb, port, src->dev, MACVLAN_MODE_VEPA | MACVLAN_MODE_BRIDGE); |
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else |
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/* * flood only to VEPA ports, bridge ports * already saw the frame on the way out. */ macvlan_broadcast(skb, port, src->dev, MACVLAN_MODE_VEPA); |
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rcu_read_unlock(); |
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if (src) dev_put(src->dev); |
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kfree_skb(skb); } } static void macvlan_broadcast_enqueue(struct macvlan_port *port, |
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const struct macvlan_dev *src, |
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struct sk_buff *skb) { |
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struct sk_buff *nskb; |
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int err = -ENOMEM; |
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nskb = skb_clone(skb, GFP_ATOMIC); if (!nskb) |
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goto err; |
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MACVLAN_SKB_CB(nskb)->src = src; |
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spin_lock(&port->bc_queue.lock); |
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if (skb_queue_len(&port->bc_queue) < MACVLAN_BC_QUEUE_LEN) { |
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if (src) dev_hold(src->dev); |
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__skb_queue_tail(&port->bc_queue, nskb); |
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err = 0; } spin_unlock(&port->bc_queue.lock); if (err) |
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goto free_nskb; |
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schedule_work(&port->bc_work); return; |
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free_nskb: kfree_skb(nskb); |
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err: atomic_long_inc(&skb->dev->rx_dropped); } |
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static void macvlan_flush_sources(struct macvlan_port *port, struct macvlan_dev *vlan) { int i; for (i = 0; i < MACVLAN_HASH_SIZE; i++) { struct hlist_node *h, *n; hlist_for_each_safe(h, n, &port->vlan_source_hash[i]) { struct macvlan_source_entry *entry; entry = hlist_entry(h, struct macvlan_source_entry, hlist); if (entry->vlan == vlan) macvlan_hash_del_source(entry); } } vlan->macaddr_count = 0; } static void macvlan_forward_source_one(struct sk_buff *skb, struct macvlan_dev *vlan) { struct sk_buff *nskb; struct net_device *dev; int len; int ret; dev = vlan->dev; if (unlikely(!(dev->flags & IFF_UP))) return; nskb = skb_clone(skb, GFP_ATOMIC); if (!nskb) return; len = nskb->len + ETH_HLEN; nskb->dev = dev; nskb->pkt_type = PACKET_HOST; ret = netif_rx(nskb); |
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macvlan_count_rx(vlan, len, ret == NET_RX_SUCCESS, false); |
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} static void macvlan_forward_source(struct sk_buff *skb, struct macvlan_port *port, const unsigned char *addr) { struct macvlan_source_entry *entry; u32 idx = macvlan_eth_hash(addr); struct hlist_head *h = &port->vlan_source_hash[idx]; hlist_for_each_entry_rcu(entry, h, hlist) { if (ether_addr_equal_64bits(entry->addr, addr)) if (entry->vlan->dev->flags & IFF_UP) macvlan_forward_source_one(skb, entry->vlan); } } |
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/* called under rcu_read_lock() from netif_receive_skb */ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb) { struct macvlan_port *port; struct sk_buff *skb = *pskb; const struct ethhdr *eth = eth_hdr(skb); const struct macvlan_dev *vlan; const struct macvlan_dev *src; struct net_device *dev; unsigned int len = 0; |
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int ret; rx_handler_result_t handle_res; |
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port = macvlan_port_get_rcu(skb->dev); if (is_multicast_ether_addr(eth->h_dest)) { |
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unsigned int hash; |
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skb = ip_check_defrag(dev_net(skb->dev), skb, IP_DEFRAG_MACVLAN); |
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if (!skb) return RX_HANDLER_CONSUMED; |
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*pskb = skb; |
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eth = eth_hdr(skb); |
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macvlan_forward_source(skb, port, eth->h_source); |
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src = macvlan_hash_lookup(port, eth->h_source); if (src && src->mode != MACVLAN_MODE_VEPA && src->mode != MACVLAN_MODE_BRIDGE) { |
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/* forward to original port. */ vlan = src; |
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ret = macvlan_broadcast_one(skb, vlan, eth, 0) ?: netif_rx(skb); |
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handle_res = RX_HANDLER_CONSUMED; |
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goto out; } |
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hash = mc_hash(NULL, eth->h_dest); if (test_bit(hash, port->mc_filter)) macvlan_broadcast_enqueue(port, src, skb); |
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|
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return RX_HANDLER_PASS; |
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} |
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macvlan_forward_source(skb, port, eth->h_source); |
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if (port->passthru) |
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vlan = list_first_or_null_rcu(&port->vlans, struct macvlan_dev, list); |
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else vlan = macvlan_hash_lookup(port, eth->h_dest); |
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if (vlan == NULL) |
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return RX_HANDLER_PASS; |
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dev = vlan->dev; if (unlikely(!(dev->flags & IFF_UP))) { kfree_skb(skb); |
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return RX_HANDLER_CONSUMED; |
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} |
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len = skb->len + ETH_HLEN; |
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skb = skb_share_check(skb, GFP_ATOMIC); |
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if (!skb) { ret = NET_RX_DROP; handle_res = RX_HANDLER_CONSUMED; |
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goto out; |
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} |
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|
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*pskb = skb; |
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skb->dev = dev; skb->pkt_type = PACKET_HOST; |
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ret = NET_RX_SUCCESS; handle_res = RX_HANDLER_ANOTHER; |
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out: |
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macvlan_count_rx(vlan, len, ret == NET_RX_SUCCESS, false); |
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return handle_res; |
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} |
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static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) { const struct macvlan_dev *vlan = netdev_priv(dev); const struct macvlan_port *port = vlan->port; const struct macvlan_dev *dest; if (vlan->mode == MACVLAN_MODE_BRIDGE) { const struct ethhdr *eth = (void *)skb->data; /* send to other bridge ports directly */ if (is_multicast_ether_addr(eth->h_dest)) { macvlan_broadcast(skb, port, dev, MACVLAN_MODE_BRIDGE); goto xmit_world; } dest = macvlan_hash_lookup(port, eth->h_dest); if (dest && dest->mode == MACVLAN_MODE_BRIDGE) { |
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/* send to lowerdev first for its network taps */ |
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dev_forward_skb(vlan->lowerdev, skb); |
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471 472 473 474 475 476 |
return NET_XMIT_SUCCESS; } } xmit_world: |
59b9997ba Revert "net: main... |
477 |
skb->dev = vlan->lowerdev; |
618e1b748 macvlan: implemen... |
478 479 |
return dev_queue_xmit(skb); } |
688cea83f macvlan: add netp... |
480 481 482 483 484 485 486 487 488 489 |
static inline netdev_tx_t macvlan_netpoll_send_skb(struct macvlan_dev *vlan, struct sk_buff *skb) { #ifdef CONFIG_NET_POLL_CONTROLLER if (vlan->netpoll) netpoll_send_skb(vlan->netpoll, skb); #else BUG(); #endif return NETDEV_TX_OK; } |
0db901bd3 macvlan: make sta... |
490 491 |
static netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, struct net_device *dev) |
b863ceb7d [NET]: Add macvla... |
492 |
{ |
b863ceb7d [NET]: Add macvla... |
493 494 |
unsigned int len = skb->len; int ret; |
688cea83f macvlan: add netp... |
495 496 497 498 |
struct macvlan_dev *vlan = netdev_priv(dev); if (unlikely(netpoll_tx_running(dev))) return macvlan_netpoll_send_skb(vlan, skb); |
b863ceb7d [NET]: Add macvla... |
499 |
|
a6cc0cfa7 net: Add layer 2 ... |
500 501 |
if (vlan->fwd_priv) { skb->dev = vlan->lowerdev; |
f663dd9aa net: core: explic... |
502 |
ret = dev_queue_xmit_accel(skb, vlan->fwd_priv); |
a6cc0cfa7 net: Add layer 2 ... |
503 504 505 |
} else { ret = macvlan_queue_xmit(skb, dev); } |
2d6c9ffcc net: congestion n... |
506 |
if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { |
cdf3e274c macvlan: unify ma... |
507 |
struct vlan_pcpu_stats *pcpu_stats; |
2c1145532 macvlan: add mult... |
508 |
|
8ffab51b3 macvlan: lockless... |
509 510 511 512 513 514 515 516 |
pcpu_stats = this_cpu_ptr(vlan->pcpu_stats); u64_stats_update_begin(&pcpu_stats->syncp); pcpu_stats->tx_packets++; pcpu_stats->tx_bytes += len; u64_stats_update_end(&pcpu_stats->syncp); } else { this_cpu_inc(vlan->pcpu_stats->tx_dropped); } |
cbbef5e18 vlan/macvlan: pro... |
517 |
return ret; |
b863ceb7d [NET]: Add macvla... |
518 519 520 |
} static int macvlan_hard_header(struct sk_buff *skb, struct net_device *dev, |
3b04ddde0 [NET]: Move hardw... |
521 522 |
unsigned short type, const void *daddr, const void *saddr, unsigned len) |
b863ceb7d [NET]: Add macvla... |
523 524 525 |
{ const struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *lowerdev = vlan->lowerdev; |
0c4e85813 [NET]: Wrap netde... |
526 527 |
return dev_hard_header(skb, lowerdev, type, daddr, saddr ? : dev->dev_addr, len); |
b863ceb7d [NET]: Add macvla... |
528 |
} |
3b04ddde0 [NET]: Move hardw... |
529 530 |
static const struct header_ops macvlan_hard_header_ops = { .create = macvlan_hard_header, |
3b04ddde0 [NET]: Move hardw... |
531 |
.parse = eth_header_parse, |
3b04ddde0 [NET]: Move hardw... |
532 533 534 |
.cache = eth_header_cache, .cache_update = eth_header_cache_update, }; |
b13ba1b83 macvlan: forbid L... |
535 |
static struct rtnl_link_ops macvlan_link_ops; |
b863ceb7d [NET]: Add macvla... |
536 537 538 |
static int macvlan_open(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); |
b863ceb7d [NET]: Add macvla... |
539 540 |
struct net_device *lowerdev = vlan->lowerdev; int err; |
eb06acdc8 macvlan: Introduc... |
541 |
if (vlan->port->passthru) { |
787381415 macvlan: handle s... |
542 543 544 545 546 |
if (!(vlan->flags & MACVLAN_FLAG_NOPROMISC)) { err = dev_set_promiscuity(lowerdev, 1); if (err < 0) goto out; } |
eb06acdc8 macvlan: Introduc... |
547 548 |
goto hash_add; } |
b13ba1b83 macvlan: forbid L... |
549 550 |
if (lowerdev->features & NETIF_F_HW_L2FW_DOFFLOAD && dev->rtnl_link_ops == &macvlan_link_ops) { |
a6cc0cfa7 net: Add layer 2 ... |
551 552 553 554 555 556 557 558 |
vlan->fwd_priv = lowerdev->netdev_ops->ndo_dfwd_add_station(lowerdev, dev); /* If we get a NULL pointer back, or if we get an error * then we should just fall through to the non accelerated path */ if (IS_ERR_OR_NULL(vlan->fwd_priv)) { vlan->fwd_priv = NULL; |
f663dd9aa net: core: explic... |
559 |
} else |
a6cc0cfa7 net: Add layer 2 ... |
560 |
return 0; |
a6cc0cfa7 net: Add layer 2 ... |
561 |
} |
f9ac30f08 macvlan: Determin... |
562 563 564 |
err = -EBUSY; if (macvlan_addr_busy(vlan->port, dev->dev_addr)) goto out; |
a748ee242 net: move address... |
565 |
err = dev_uc_add(lowerdev, dev->dev_addr); |
b863ceb7d [NET]: Add macvla... |
566 |
if (err < 0) |
b89fb7da2 macvlan: Check re... |
567 568 569 570 571 572 |
goto out; if (dev->flags & IFF_ALLMULTI) { err = dev_set_allmulti(lowerdev, 1); if (err < 0) goto del_unicast; } |
eb06acdc8 macvlan: Introduc... |
573 |
|
efdbd2b30 macvlan: Propagat... |
574 575 576 577 578 |
if (dev->flags & IFF_PROMISC) { err = dev_set_promiscuity(lowerdev, 1); if (err < 0) goto clear_multi; } |
eb06acdc8 macvlan: Introduc... |
579 |
hash_add: |
f9ac30f08 macvlan: Determin... |
580 |
macvlan_hash_add(vlan); |
b863ceb7d [NET]: Add macvla... |
581 |
return 0; |
b89fb7da2 macvlan: Check re... |
582 |
|
efdbd2b30 macvlan: Propagat... |
583 |
clear_multi: |
c3891fa25 driver: macvlan: ... |
584 585 |
if (dev->flags & IFF_ALLMULTI) dev_set_allmulti(lowerdev, -1); |
b89fb7da2 macvlan: Check re... |
586 |
del_unicast: |
a748ee242 net: move address... |
587 |
dev_uc_del(lowerdev, dev->dev_addr); |
b89fb7da2 macvlan: Check re... |
588 |
out: |
a6cc0cfa7 net: Add layer 2 ... |
589 590 591 592 593 |
if (vlan->fwd_priv) { lowerdev->netdev_ops->ndo_dfwd_del_station(lowerdev, vlan->fwd_priv); vlan->fwd_priv = NULL; } |
b89fb7da2 macvlan: Check re... |
594 |
return err; |
b863ceb7d [NET]: Add macvla... |
595 596 597 598 599 600 |
} static int macvlan_stop(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *lowerdev = vlan->lowerdev; |
a6cc0cfa7 net: Add layer 2 ... |
601 602 603 604 605 606 |
if (vlan->fwd_priv) { lowerdev->netdev_ops->ndo_dfwd_del_station(lowerdev, vlan->fwd_priv); vlan->fwd_priv = NULL; return 0; } |
df8ef8f3a macvlan: add FDB ... |
607 608 |
dev_uc_unsync(lowerdev, dev); dev_mc_unsync(lowerdev, dev); |
eb06acdc8 macvlan: Introduc... |
609 |
if (vlan->port->passthru) { |
df8ef8f3a macvlan: add FDB ... |
610 611 |
if (!(vlan->flags & MACVLAN_FLAG_NOPROMISC)) dev_set_promiscuity(lowerdev, -1); |
eb06acdc8 macvlan: Introduc... |
612 613 |
goto hash_del; } |
b863ceb7d [NET]: Add macvla... |
614 615 |
if (dev->flags & IFF_ALLMULTI) dev_set_allmulti(lowerdev, -1); |
efdbd2b30 macvlan: Propagat... |
616 617 |
if (dev->flags & IFF_PROMISC) dev_set_promiscuity(lowerdev, -1); |
a748ee242 net: move address... |
618 |
dev_uc_del(lowerdev, dev->dev_addr); |
b863ceb7d [NET]: Add macvla... |
619 |
|
eb06acdc8 macvlan: Introduc... |
620 |
hash_del: |
449f45442 macvlan: remove o... |
621 |
macvlan_hash_del(vlan, !dev->dismantle); |
b863ceb7d [NET]: Add macvla... |
622 623 |
return 0; } |
e289fd281 macvlan: fix the ... |
624 |
static int macvlan_sync_address(struct net_device *dev, unsigned char *addr) |
ad5d20a63 [MACVLAN]: Allow ... |
625 626 627 |
{ struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *lowerdev = vlan->lowerdev; |
ad5d20a63 [MACVLAN]: Allow ... |
628 |
int err; |
f9ac30f08 macvlan: Determin... |
629 630 |
if (!(dev->flags & IFF_UP)) { /* Just copy in the new address */ |
e289fd281 macvlan: fix the ... |
631 |
ether_addr_copy(dev->dev_addr, addr); |
f9ac30f08 macvlan: Determin... |
632 633 |
} else { /* Rehash and update the device filters */ |
e289fd281 macvlan: fix the ... |
634 |
if (macvlan_addr_busy(vlan->port, addr)) |
f9ac30f08 macvlan: Determin... |
635 |
return -EBUSY; |
ad5d20a63 [MACVLAN]: Allow ... |
636 |
|
e289fd281 macvlan: fix the ... |
637 638 639 640 |
if (!vlan->port->passthru) { err = dev_uc_add(lowerdev, addr); if (err) return err; |
ad5d20a63 [MACVLAN]: Allow ... |
641 |
|
e289fd281 macvlan: fix the ... |
642 643 |
dev_uc_del(lowerdev, dev->dev_addr); } |
f9ac30f08 macvlan: Determin... |
644 |
|
e289fd281 macvlan: fix the ... |
645 |
macvlan_hash_change_addr(vlan, addr); |
f9ac30f08 macvlan: Determin... |
646 |
} |
ad5d20a63 [MACVLAN]: Allow ... |
647 648 |
return 0; } |
e289fd281 macvlan: fix the ... |
649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 |
static int macvlan_set_mac_address(struct net_device *dev, void *p) { struct macvlan_dev *vlan = netdev_priv(dev); struct sockaddr *addr = p; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; if (vlan->mode == MACVLAN_MODE_PASSTHRU) { dev_set_mac_address(vlan->lowerdev, addr); return 0; } return macvlan_sync_address(dev, addr->sa_data); } |
b863ceb7d [NET]: Add macvla... |
664 665 666 667 |
static void macvlan_change_rx_flags(struct net_device *dev, int change) { struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *lowerdev = vlan->lowerdev; |
bbeb0eadc macvlan: Don't pr... |
668 669 670 |
if (dev->flags & IFF_UP) { if (change & IFF_ALLMULTI) dev_set_allmulti(lowerdev, dev->flags & IFF_ALLMULTI ? 1 : -1); |
efdbd2b30 macvlan: Propagat... |
671 672 673 |
if (change & IFF_PROMISC) dev_set_promiscuity(lowerdev, dev->flags & IFF_PROMISC ? 1 : -1); |
bbeb0eadc macvlan: Don't pr... |
674 |
} |
b863ceb7d [NET]: Add macvla... |
675 |
} |
9c127a016 macvlan: Avoid un... |
676 677 678 |
static void macvlan_compute_filter(unsigned long *mc_filter, struct net_device *dev, struct macvlan_dev *vlan) |
b863ceb7d [NET]: Add macvla... |
679 |
{ |
cd431e738 macvlan: add mult... |
680 |
if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
9c127a016 macvlan: Avoid un... |
681 |
bitmap_fill(mc_filter, MACVLAN_MC_FILTER_SZ); |
cd431e738 macvlan: add mult... |
682 683 684 685 686 687 |
} else { struct netdev_hw_addr *ha; DECLARE_BITMAP(filter, MACVLAN_MC_FILTER_SZ); bitmap_zero(filter, MACVLAN_MC_FILTER_SZ); netdev_for_each_mc_addr(ha, dev) { |
3807ff589 macvlan: add a sa... |
688 |
__set_bit(mc_hash(vlan, ha->addr), filter); |
cd431e738 macvlan: add mult... |
689 |
} |
d52704304 macvlan: broadcas... |
690 |
|
3807ff589 macvlan: add a sa... |
691 |
__set_bit(mc_hash(vlan, dev->broadcast), filter); |
d52704304 macvlan: broadcas... |
692 |
|
9c127a016 macvlan: Avoid un... |
693 |
bitmap_copy(mc_filter, filter, MACVLAN_MC_FILTER_SZ); |
cd431e738 macvlan: add mult... |
694 |
} |
9c127a016 macvlan: Avoid un... |
695 696 697 698 699 700 701 |
} static void macvlan_set_mac_lists(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); macvlan_compute_filter(vlan->mc_filter, dev, vlan); |
df8ef8f3a macvlan: add FDB ... |
702 |
dev_uc_sync(vlan->lowerdev, dev); |
b863ceb7d [NET]: Add macvla... |
703 |
dev_mc_sync(vlan->lowerdev, dev); |
9c127a016 macvlan: Avoid un... |
704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 |
/* This is slightly inaccurate as we're including the subscription * list of vlan->lowerdev too. * * Bug alert: This only works if everyone has the same broadcast * address as lowerdev. As soon as someone changes theirs this * will break. * * However, this is already broken as when you change your broadcast * address we don't get called. * * The solution is to maintain a list of broadcast addresses like * we do for uc/mc, if you care. */ macvlan_compute_filter(vlan->port->mc_filter, vlan->lowerdev, NULL); |
b863ceb7d [NET]: Add macvla... |
719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 |
} static int macvlan_change_mtu(struct net_device *dev, int new_mtu) { struct macvlan_dev *vlan = netdev_priv(dev); if (new_mtu < 68 || vlan->lowerdev->mtu < new_mtu) return -EINVAL; dev->mtu = new_mtu; return 0; } /* * macvlan network devices have devices nesting below it and are a special * "super class" of normal network devices; split their locks off into a * separate class since they always nest. */ |
cf508b121 netdev: Handle ->... |
736 |
static struct lock_class_key macvlan_netdev_addr_lock_key; |
b863ceb7d [NET]: Add macvla... |
737 |
|
8b4703e9b macvlan: Add supp... |
738 |
#define ALWAYS_ON_FEATURES \ |
c8cd0989b net: Eliminate NE... |
739 |
(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE | NETIF_F_LLTX | \ |
a523a5ecc macvlan: delay th... |
740 |
NETIF_F_GSO_ROBUST) |
8b4703e9b macvlan: Add supp... |
741 |
|
b863ceb7d [NET]: Add macvla... |
742 |
#define MACVLAN_FEATURES \ |
a188222b6 net: Rename NETIF... |
743 |
(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \ |
62dbe8301 macvlan: allow se... |
744 |
NETIF_F_GSO | NETIF_F_TSO | NETIF_F_UFO | NETIF_F_LRO | \ |
8d13e670d macvlan: add VLAN... |
745 |
NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO | NETIF_F_RXCSUM | \ |
28d2b136c net: vlan: announ... |
746 |
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER) |
b863ceb7d [NET]: Add macvla... |
747 748 749 |
#define MACVLAN_STATE_MASK \ ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT)) |
c674ac30c macvlan: Fix lock... |
750 751 752 753 |
static int macvlan_get_nest_level(struct net_device *dev) { return ((struct macvlan_dev *)netdev_priv(dev))->nest_level; } |
c773e847e netdev: Move _xmi... |
754 755 |
static void macvlan_set_lockdep_class(struct net_device *dev) { |
24ffd7520 net: macvlan: cal... |
756 |
netdev_lockdep_set_classes(dev); |
c674ac30c macvlan: Fix lock... |
757 758 759 |
lockdep_set_class_and_subclass(&dev->addr_list_lock, &macvlan_netdev_addr_lock_key, macvlan_get_nest_level(dev)); |
c773e847e netdev: Move _xmi... |
760 |
} |
b863ceb7d [NET]: Add macvla... |
761 762 763 764 |
static int macvlan_init(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); const struct net_device *lowerdev = vlan->lowerdev; |
308379607 macvlan: fix fail... |
765 |
struct macvlan_port *port = vlan->port; |
b863ceb7d [NET]: Add macvla... |
766 767 768 769 |
dev->state = (dev->state & ~MACVLAN_STATE_MASK) | (lowerdev->state & MACVLAN_STATE_MASK); dev->features = lowerdev->features & MACVLAN_FEATURES; |
8b4703e9b macvlan: Add supp... |
770 |
dev->features |= ALWAYS_ON_FEATURES; |
62dbe8301 macvlan: allow se... |
771 |
dev->hw_features |= NETIF_F_LRO; |
081e83a78 macvlan: Initiali... |
772 |
dev->vlan_features = lowerdev->vlan_features & MACVLAN_FEATURES; |
8c2acc53f macvlan: fix gso_... |
773 |
dev->gso_max_size = lowerdev->gso_max_size; |
f6773c5e9 vlan: propagate g... |
774 |
dev->gso_max_segs = lowerdev->gso_max_segs; |
ef5c89967 drivers/net/macvl... |
775 |
dev->hard_header_len = lowerdev->hard_header_len; |
b863ceb7d [NET]: Add macvla... |
776 |
|
c773e847e netdev: Move _xmi... |
777 |
macvlan_set_lockdep_class(dev); |
1c213bd24 net: introduce ne... |
778 |
vlan->pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); |
8ffab51b3 macvlan: lockless... |
779 |
if (!vlan->pcpu_stats) |
fccaf7101 macvlan: Precise ... |
780 |
return -ENOMEM; |
308379607 macvlan: fix fail... |
781 |
port->count += 1; |
b863ceb7d [NET]: Add macvla... |
782 783 |
return 0; } |
fccaf7101 macvlan: Precise ... |
784 785 786 |
static void macvlan_uninit(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); |
d5cd92448 macvlan: Fix use ... |
787 |
struct macvlan_port *port = vlan->port; |
fccaf7101 macvlan: Precise ... |
788 |
|
8ffab51b3 macvlan: lockless... |
789 |
free_percpu(vlan->pcpu_stats); |
d5cd92448 macvlan: Fix use ... |
790 |
|
79cf79abc macvlan: add sour... |
791 |
macvlan_flush_sources(port, vlan); |
5e3c516b5 Revert "macvlan: ... |
792 793 |
port->count -= 1; if (!port->count) |
d5cd92448 macvlan: Fix use ... |
794 |
macvlan_port_destroy(port->dev); |
fccaf7101 macvlan: Precise ... |
795 |
} |
28172739f net: fix 64 bit c... |
796 797 |
static struct rtnl_link_stats64 *macvlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
fccaf7101 macvlan: Precise ... |
798 |
{ |
fccaf7101 macvlan: Precise ... |
799 |
struct macvlan_dev *vlan = netdev_priv(dev); |
8ffab51b3 macvlan: lockless... |
800 |
if (vlan->pcpu_stats) { |
cdf3e274c macvlan: unify ma... |
801 |
struct vlan_pcpu_stats *p; |
8ffab51b3 macvlan: lockless... |
802 803 |
u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; u32 rx_errors = 0, tx_dropped = 0; |
bc66154ef macvlan: 64 bit r... |
804 |
unsigned int start; |
fccaf7101 macvlan: Precise ... |
805 806 807 |
int i; for_each_possible_cpu(i) { |
8ffab51b3 macvlan: lockless... |
808 |
p = per_cpu_ptr(vlan->pcpu_stats, i); |
bc66154ef macvlan: 64 bit r... |
809 |
do { |
57a7744e0 net: Replace u64_... |
810 |
start = u64_stats_fetch_begin_irq(&p->syncp); |
bc66154ef macvlan: 64 bit r... |
811 812 813 |
rx_packets = p->rx_packets; rx_bytes = p->rx_bytes; rx_multicast = p->rx_multicast; |
8ffab51b3 macvlan: lockless... |
814 815 |
tx_packets = p->tx_packets; tx_bytes = p->tx_bytes; |
57a7744e0 net: Replace u64_... |
816 |
} while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
8ffab51b3 macvlan: lockless... |
817 818 819 820 821 822 823 824 825 826 827 |
stats->rx_packets += rx_packets; stats->rx_bytes += rx_bytes; stats->multicast += rx_multicast; stats->tx_packets += tx_packets; stats->tx_bytes += tx_bytes; /* rx_errors & tx_dropped are u32, updated * without syncp protection. */ rx_errors += p->rx_errors; tx_dropped += p->tx_dropped; |
fccaf7101 macvlan: Precise ... |
828 |
} |
8ffab51b3 macvlan: lockless... |
829 830 831 |
stats->rx_errors = rx_errors; stats->rx_dropped = rx_errors; stats->tx_dropped = tx_dropped; |
fccaf7101 macvlan: Precise ... |
832 833 834 |
} return stats; } |
8e586137e net: make vlan nd... |
835 |
static int macvlan_vlan_rx_add_vid(struct net_device *dev, |
80d5c3689 net: vlan: prepar... |
836 |
__be16 proto, u16 vid) |
8d13e670d macvlan: add VLAN... |
837 838 839 |
{ struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *lowerdev = vlan->lowerdev; |
8d13e670d macvlan: add VLAN... |
840 |
|
80d5c3689 net: vlan: prepar... |
841 |
return vlan_vid_add(lowerdev, proto, vid); |
8d13e670d macvlan: add VLAN... |
842 |
} |
8e586137e net: make vlan nd... |
843 |
static int macvlan_vlan_rx_kill_vid(struct net_device *dev, |
80d5c3689 net: vlan: prepar... |
844 |
__be16 proto, u16 vid) |
8d13e670d macvlan: add VLAN... |
845 846 847 |
{ struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *lowerdev = vlan->lowerdev; |
8d13e670d macvlan: add VLAN... |
848 |
|
80d5c3689 net: vlan: prepar... |
849 |
vlan_vid_del(lowerdev, proto, vid); |
8e586137e net: make vlan nd... |
850 |
return 0; |
8d13e670d macvlan: add VLAN... |
851 |
} |
edc7d5732 netlink: add attr... |
852 |
static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
df8ef8f3a macvlan: add FDB ... |
853 |
struct net_device *dev, |
f6f6424ba net: make vid as ... |
854 |
const unsigned char *addr, u16 vid, |
df8ef8f3a macvlan: add FDB ... |
855 856 857 858 |
u16 flags) { struct macvlan_dev *vlan = netdev_priv(dev); int err = -EINVAL; |
8a50f11c3 macvlan: Allow se... |
859 860 861 862 |
/* Support unicast filter only on passthru devices. * Multicast filter should be allowed on all devices. */ if (!vlan->port->passthru && is_unicast_ether_addr(addr)) |
df8ef8f3a macvlan: add FDB ... |
863 |
return -EOPNOTSUPP; |
ab2cfbb2b macvlan fdb repla... |
864 865 |
if (flags & NLM_F_REPLACE) return -EOPNOTSUPP; |
df8ef8f3a macvlan: add FDB ... |
866 867 868 869 870 871 872 |
if (is_unicast_ether_addr(addr)) err = dev_uc_add_excl(dev, addr); else if (is_multicast_ether_addr(addr)) err = dev_mc_add_excl(dev, addr); return err; } |
1690be63a bridge: Add vlan ... |
873 |
static int macvlan_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], |
df8ef8f3a macvlan: add FDB ... |
874 |
struct net_device *dev, |
f6f6424ba net: make vid as ... |
875 |
const unsigned char *addr, u16 vid) |
df8ef8f3a macvlan: add FDB ... |
876 877 878 |
{ struct macvlan_dev *vlan = netdev_priv(dev); int err = -EINVAL; |
8a50f11c3 macvlan: Allow se... |
879 880 881 882 |
/* Support unicast filter only on passthru devices. * Multicast filter should be allowed on all devices. */ if (!vlan->port->passthru && is_unicast_ether_addr(addr)) |
df8ef8f3a macvlan: add FDB ... |
883 884 885 886 887 888 889 890 891 |
return -EOPNOTSUPP; if (is_unicast_ether_addr(addr)) err = dev_uc_del(dev, addr); else if (is_multicast_ether_addr(addr)) err = dev_mc_del(dev, addr); return err; } |
b863ceb7d [NET]: Add macvla... |
892 893 894 |
static void macvlan_ethtool_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) { |
7826d43f2 ethtool: fix drvi... |
895 896 |
strlcpy(drvinfo->driver, "macvlan", sizeof(drvinfo->driver)); strlcpy(drvinfo->version, "0.1", sizeof(drvinfo->version)); |
b863ceb7d [NET]: Add macvla... |
897 |
} |
85f958197 net: macvlan: use... |
898 899 |
static int macvlan_ethtool_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) |
9edb8bb68 macvlan: add supp... |
900 901 |
{ const struct macvlan_dev *vlan = netdev_priv(dev); |
4bc71cb98 net: consolidate ... |
902 |
|
85f958197 net: macvlan: use... |
903 |
return __ethtool_get_link_ksettings(vlan->lowerdev, cmd); |
9edb8bb68 macvlan: add supp... |
904 |
} |
2be5c7679 macvtap: Let TUNS... |
905 906 907 908 |
static netdev_features_t macvlan_fix_features(struct net_device *dev, netdev_features_t features) { struct macvlan_dev *vlan = netdev_priv(dev); |
62dbe8301 macvlan: allow se... |
909 |
netdev_features_t lowerdev_features = vlan->lowerdev->features; |
797f87f83 macvlan: fix netd... |
910 |
netdev_features_t mask; |
2be5c7679 macvtap: Let TUNS... |
911 |
|
797f87f83 macvlan: fix netd... |
912 913 914 |
features |= NETIF_F_ALL_FOR_ALL; features &= (vlan->set_features | ~MACVLAN_FEATURES); mask = features; |
62dbe8301 macvlan: allow se... |
915 916 |
lowerdev_features &= (features | ~NETIF_F_LRO); features = netdev_increment_features(lowerdev_features, features, mask); |
8b4703e9b macvlan: Add supp... |
917 |
features |= ALWAYS_ON_FEATURES; |
0d0162e7a net: allow macvla... |
918 |
features &= ~NETIF_F_NETNS_LOCAL; |
797f87f83 macvlan: fix netd... |
919 920 |
return features; |
2be5c7679 macvtap: Let TUNS... |
921 |
} |
688cea83f macvlan: add netp... |
922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 |
#ifdef CONFIG_NET_POLL_CONTROLLER static void macvlan_dev_poll_controller(struct net_device *dev) { return; } static int macvlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo) { struct macvlan_dev *vlan = netdev_priv(dev); struct net_device *real_dev = vlan->lowerdev; struct netpoll *netpoll; int err = 0; netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); err = -ENOMEM; if (!netpoll) goto out; err = __netpoll_setup(netpoll, real_dev); if (err) { kfree(netpoll); goto out; } vlan->netpoll = netpoll; out: return err; } static void macvlan_dev_netpoll_cleanup(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); struct netpoll *netpoll = vlan->netpoll; if (!netpoll) return; vlan->netpoll = NULL; __netpoll_free_async(netpoll); } #endif /* CONFIG_NET_POLL_CONTROLLER */ |
ef5fa6bc4 macvlan: implemen... |
965 966 967 968 969 970 |
static int macvlan_dev_get_iflink(const struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); return vlan->lowerdev->ifindex; } |
b863ceb7d [NET]: Add macvla... |
971 972 |
static const struct ethtool_ops macvlan_ethtool_ops = { .get_link = ethtool_op_get_link, |
85f958197 net: macvlan: use... |
973 |
.get_link_ksettings = macvlan_ethtool_get_link_ksettings, |
b863ceb7d [NET]: Add macvla... |
974 975 |
.get_drvinfo = macvlan_ethtool_get_drvinfo, }; |
54a30c975 macvlan: convert ... |
976 977 |
static const struct net_device_ops macvlan_netdev_ops = { .ndo_init = macvlan_init, |
fccaf7101 macvlan: Precise ... |
978 |
.ndo_uninit = macvlan_uninit, |
54a30c975 macvlan: convert ... |
979 980 |
.ndo_open = macvlan_open, .ndo_stop = macvlan_stop, |
008298231 netdev: add more ... |
981 |
.ndo_start_xmit = macvlan_start_xmit, |
54a30c975 macvlan: convert ... |
982 |
.ndo_change_mtu = macvlan_change_mtu, |
2be5c7679 macvtap: Let TUNS... |
983 |
.ndo_fix_features = macvlan_fix_features, |
54a30c975 macvlan: convert ... |
984 985 |
.ndo_change_rx_flags = macvlan_change_rx_flags, .ndo_set_mac_address = macvlan_set_mac_address, |
df8ef8f3a macvlan: add FDB ... |
986 |
.ndo_set_rx_mode = macvlan_set_mac_lists, |
bc66154ef macvlan: 64 bit r... |
987 |
.ndo_get_stats64 = macvlan_dev_get_stats64, |
54a30c975 macvlan: convert ... |
988 |
.ndo_validate_addr = eth_validate_addr, |
8d13e670d macvlan: add VLAN... |
989 990 |
.ndo_vlan_rx_add_vid = macvlan_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = macvlan_vlan_rx_kill_vid, |
df8ef8f3a macvlan: add FDB ... |
991 992 993 |
.ndo_fdb_add = macvlan_fdb_add, .ndo_fdb_del = macvlan_fdb_del, .ndo_fdb_dump = ndo_dflt_fdb_dump, |
c674ac30c macvlan: Fix lock... |
994 |
.ndo_get_lock_subclass = macvlan_get_nest_level, |
688cea83f macvlan: add netp... |
995 996 997 998 999 |
#ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = macvlan_dev_poll_controller, .ndo_netpoll_setup = macvlan_dev_netpoll_setup, .ndo_netpoll_cleanup = macvlan_dev_netpoll_cleanup, #endif |
ef5fa6bc4 macvlan: implemen... |
1000 |
.ndo_get_iflink = macvlan_dev_get_iflink, |
f56e67b51 macvlan: Don't se... |
1001 |
.ndo_features_check = passthru_features_check, |
54a30c975 macvlan: convert ... |
1002 |
}; |
8a35747a5 macvtap: Limit pa... |
1003 |
void macvlan_common_setup(struct net_device *dev) |
b863ceb7d [NET]: Add macvla... |
1004 1005 |
{ ether_setup(dev); |
028758788 net: better IFF_X... |
1006 1007 |
dev->priv_flags &= ~IFF_TX_SKB_SHARING; netif_keep_dst(dev); |
87ab7f6f2 macvlan: Set IFF_... |
1008 |
dev->priv_flags |= IFF_UNICAST_FLT; |
54a30c975 macvlan: convert ... |
1009 |
dev->netdev_ops = &macvlan_netdev_ops; |
b863ceb7d [NET]: Add macvla... |
1010 |
dev->destructor = free_netdev; |
717401295 macvlan: fix typo... |
1011 |
dev->header_ops = &macvlan_hard_header_ops; |
b863ceb7d [NET]: Add macvla... |
1012 |
dev->ethtool_ops = &macvlan_ethtool_ops; |
8a35747a5 macvtap: Limit pa... |
1013 1014 1015 1016 1017 1018 |
} EXPORT_SYMBOL_GPL(macvlan_common_setup); static void macvlan_setup(struct net_device *dev) { macvlan_common_setup(dev); |
7009212b1 macvlan: convert ... |
1019 |
dev->priv_flags |= IFF_NO_QUEUE; |
b863ceb7d [NET]: Add macvla... |
1020 1021 1022 1023 1024 1025 |
} static int macvlan_port_create(struct net_device *dev) { struct macvlan_port *port; unsigned int i; |
ab95bfe01 net: replace hook... |
1026 |
int err; |
b863ceb7d [NET]: Add macvla... |
1027 1028 1029 |
if (dev->type != ARPHRD_ETHER || dev->flags & IFF_LOOPBACK) return -EINVAL; |
d6b00fec5 macvlan: play wel... |
1030 1031 |
if (netif_is_ipvlan_port(dev)) return -EBUSY; |
b863ceb7d [NET]: Add macvla... |
1032 1033 1034 |
port = kzalloc(sizeof(*port), GFP_KERNEL); if (port == NULL) return -ENOMEM; |
eb06acdc8 macvlan: Introduc... |
1035 |
port->passthru = false; |
b863ceb7d [NET]: Add macvla... |
1036 1037 1038 1039 |
port->dev = dev; INIT_LIST_HEAD(&port->vlans); for (i = 0; i < MACVLAN_HASH_SIZE; i++) INIT_HLIST_HEAD(&port->vlan_hash[i]); |
79cf79abc macvlan: add sour... |
1040 1041 |
for (i = 0; i < MACVLAN_HASH_SIZE; i++) INIT_HLIST_HEAD(&port->vlan_source_hash[i]); |
ab95bfe01 net: replace hook... |
1042 |
|
412ca1550 macvlan: Move bro... |
1043 1044 |
skb_queue_head_init(&port->bc_queue); INIT_WORK(&port->bc_work, macvlan_process_broadcast); |
a35e2c1b6 macvlan: use rx_h... |
1045 1046 |
err = netdev_rx_handler_register(dev, macvlan_handle_frame, port); if (err) |
ab95bfe01 net: replace hook... |
1047 |
kfree(port); |
d93515611 macvlan: fix pani... |
1048 1049 |
else dev->priv_flags |= IFF_MACVLAN_PORT; |
ab95bfe01 net: replace hook... |
1050 |
return err; |
b863ceb7d [NET]: Add macvla... |
1051 1052 1053 1054 |
} static void macvlan_port_destroy(struct net_device *dev) { |
e052f7e64 macvlan: use the ... |
1055 |
struct macvlan_port *port = macvlan_port_get_rtnl(dev); |
b863ceb7d [NET]: Add macvla... |
1056 |
|
a35e2c1b6 macvlan: use rx_h... |
1057 |
dev->priv_flags &= ~IFF_MACVLAN_PORT; |
ab95bfe01 net: replace hook... |
1058 |
netdev_rx_handler_unregister(dev); |
fe0ca7328 macvlan: fix a ra... |
1059 1060 1061 1062 1063 1064 |
/* After this point, no packet can schedule bc_work anymore, * but we need to cancel it and purge left skbs if any. */ cancel_work_sync(&port->bc_work); __skb_queue_purge(&port->bc_queue); |
6e070aecd macvlan,rcu: conv... |
1065 |
kfree_rcu(port, rcu); |
b863ceb7d [NET]: Add macvla... |
1066 |
} |
b863ceb7d [NET]: Add macvla... |
1067 1068 1069 1070 1071 1072 1073 1074 |
static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) { if (tb[IFLA_ADDRESS]) { if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) return -EINVAL; if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) return -EADDRNOTAVAIL; } |
27c0b1a85 macvlan: export m... |
1075 |
|
151274782 macvlan: validate... |
1076 1077 1078 |
if (data && data[IFLA_MACVLAN_FLAGS] && nla_get_u16(data[IFLA_MACVLAN_FLAGS]) & ~MACVLAN_FLAG_NOPROMISC) return -EINVAL; |
27c0b1a85 macvlan: export m... |
1079 1080 1081 1082 1083 |
if (data && data[IFLA_MACVLAN_MODE]) { switch (nla_get_u32(data[IFLA_MACVLAN_MODE])) { case MACVLAN_MODE_PRIVATE: case MACVLAN_MODE_VEPA: case MACVLAN_MODE_BRIDGE: |
eb06acdc8 macvlan: Introduc... |
1084 |
case MACVLAN_MODE_PASSTHRU: |
79cf79abc macvlan: add sour... |
1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 |
case MACVLAN_MODE_SOURCE: break; default: return -EINVAL; } } if (data && data[IFLA_MACVLAN_MACADDR_MODE]) { switch (nla_get_u32(data[IFLA_MACVLAN_MACADDR_MODE])) { case MACVLAN_MACADDR_ADD: case MACVLAN_MACADDR_DEL: case MACVLAN_MACADDR_FLUSH: case MACVLAN_MACADDR_SET: |
27c0b1a85 macvlan: export m... |
1098 1099 1100 1101 1102 |
break; default: return -EINVAL; } } |
79cf79abc macvlan: add sour... |
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 |
if (data && data[IFLA_MACVLAN_MACADDR]) { if (nla_len(data[IFLA_MACVLAN_MACADDR]) != ETH_ALEN) return -EINVAL; if (!is_valid_ether_addr(nla_data(data[IFLA_MACVLAN_MACADDR]))) return -EADDRNOTAVAIL; } if (data && data[IFLA_MACVLAN_MACADDR_COUNT]) return -EINVAL; return 0; } /** * reconfigure list of remote source mac address * (only for macvlan devices in source mode) * Note regarding alignment: all netlink data is aligned to 4 Byte, which * suffices for both ether_addr_copy and ether_addr_equal_64bits usage. */ static int macvlan_changelink_sources(struct macvlan_dev *vlan, u32 mode, struct nlattr *data[]) { char *addr = NULL; int ret, rem, len; struct nlattr *nla, *head; struct macvlan_source_entry *entry; if (data[IFLA_MACVLAN_MACADDR]) addr = nla_data(data[IFLA_MACVLAN_MACADDR]); if (mode == MACVLAN_MACADDR_ADD) { if (!addr) return -EINVAL; return macvlan_hash_add_source(vlan, addr); } else if (mode == MACVLAN_MACADDR_DEL) { if (!addr) return -EINVAL; entry = macvlan_hash_lookup_source(vlan, addr); if (entry) { macvlan_hash_del_source(entry); vlan->macaddr_count--; } } else if (mode == MACVLAN_MACADDR_FLUSH) { macvlan_flush_sources(vlan->port, vlan); } else if (mode == MACVLAN_MACADDR_SET) { macvlan_flush_sources(vlan->port, vlan); if (addr) { ret = macvlan_hash_add_source(vlan, addr); if (ret) return ret; } if (!data || !data[IFLA_MACVLAN_MACADDR_DATA]) return 0; head = nla_data(data[IFLA_MACVLAN_MACADDR_DATA]); len = nla_len(data[IFLA_MACVLAN_MACADDR_DATA]); nla_for_each_attr(nla, head, len, rem) { if (nla_type(nla) != IFLA_MACVLAN_MACADDR || nla_len(nla) != ETH_ALEN) continue; addr = nla_data(nla); ret = macvlan_hash_add_source(vlan, addr); if (ret) return ret; } } else { return -EINVAL; } |
b863ceb7d [NET]: Add macvla... |
1180 1181 |
return 0; } |
fc0663d6b macvlan: allow mu... |
1182 |
int macvlan_common_newlink(struct net *src_net, struct net_device *dev, |
2f6a1b660 macvlan: Remove c... |
1183 |
struct nlattr *tb[], struct nlattr *data[]) |
b863ceb7d [NET]: Add macvla... |
1184 1185 1186 1187 1188 |
{ struct macvlan_dev *vlan = netdev_priv(dev); struct macvlan_port *port; struct net_device *lowerdev; int err; |
79cf79abc macvlan: add sour... |
1189 |
int macmode; |
aa5fd0fb7 driver: macvlan: ... |
1190 |
bool create = false; |
b863ceb7d [NET]: Add macvla... |
1191 1192 1193 |
if (!tb[IFLA_LINK]) return -EINVAL; |
81adee47d net: Support spec... |
1194 |
lowerdev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK])); |
b863ceb7d [NET]: Add macvla... |
1195 1196 |
if (lowerdev == NULL) return -ENODEV; |
d70f2cf52 macvlan: Support ... |
1197 |
/* When creating macvlans or macvtaps on top of other macvlans - use |
b0832a296 macvlan: Support ... |
1198 |
* the real device as the lowerdev. |
a6ca5f1db [MACVLAN]: Preven... |
1199 |
*/ |
d70f2cf52 macvlan: Support ... |
1200 1201 |
if (netif_is_macvlan(lowerdev)) lowerdev = macvlan_dev_real_dev(lowerdev); |
a6ca5f1db [MACVLAN]: Preven... |
1202 |
|
b863ceb7d [NET]: Add macvla... |
1203 1204 1205 1206 1207 1208 |
if (!tb[IFLA_MTU]) dev->mtu = lowerdev->mtu; else if (dev->mtu > lowerdev->mtu) return -EINVAL; if (!tb[IFLA_ADDRESS]) |
7ce5d2221 net: use eth_hw_a... |
1209 |
eth_hw_addr_random(dev); |
b863ceb7d [NET]: Add macvla... |
1210 |
|
a35e2c1b6 macvlan: use rx_h... |
1211 |
if (!macvlan_port_exists(lowerdev)) { |
b863ceb7d [NET]: Add macvla... |
1212 1213 1214 |
err = macvlan_port_create(lowerdev); if (err < 0) return err; |
aa5fd0fb7 driver: macvlan: ... |
1215 |
create = true; |
b863ceb7d [NET]: Add macvla... |
1216 |
} |
e052f7e64 macvlan: use the ... |
1217 |
port = macvlan_port_get_rtnl(lowerdev); |
b863ceb7d [NET]: Add macvla... |
1218 |
|
eb06acdc8 macvlan: Introduc... |
1219 |
/* Only 1 macvlan device can be created in passthru mode */ |
aa5fd0fb7 driver: macvlan: ... |
1220 1221 1222 1223 1224 1225 1226 |
if (port->passthru) { /* The macvlan port must be not created this time, * still goto destroy_macvlan_port for readability. */ err = -EINVAL; goto destroy_macvlan_port; } |
eb06acdc8 macvlan: Introduc... |
1227 |
|
b863ceb7d [NET]: Add macvla... |
1228 1229 1230 |
vlan->lowerdev = lowerdev; vlan->dev = dev; vlan->port = port; |
2be5c7679 macvtap: Let TUNS... |
1231 |
vlan->set_features = MACVLAN_FEATURES; |
952fcfd08 net: remove type_... |
1232 |
vlan->nest_level = dev_get_nest_level(lowerdev) + 1; |
b863ceb7d [NET]: Add macvla... |
1233 |
|
27c0b1a85 macvlan: export m... |
1234 1235 1236 |
vlan->mode = MACVLAN_MODE_VEPA; if (data && data[IFLA_MACVLAN_MODE]) vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); |
df8ef8f3a macvlan: add FDB ... |
1237 1238 |
if (data && data[IFLA_MACVLAN_FLAGS]) vlan->flags = nla_get_u16(data[IFLA_MACVLAN_FLAGS]); |
eb06acdc8 macvlan: Introduc... |
1239 |
if (vlan->mode == MACVLAN_MODE_PASSTHRU) { |
aa5fd0fb7 driver: macvlan: ... |
1240 1241 1242 1243 |
if (port->count) { err = -EINVAL; goto destroy_macvlan_port; } |
eb06acdc8 macvlan: Introduc... |
1244 |
port->passthru = true; |
8b98604e3 net: macvlan: inh... |
1245 |
eth_hw_addr_inherit(dev, lowerdev); |
eb06acdc8 macvlan: Introduc... |
1246 |
} |
79cf79abc macvlan: add sour... |
1247 |
if (data && data[IFLA_MACVLAN_MACADDR_MODE]) { |
aa5fd0fb7 driver: macvlan: ... |
1248 1249 1250 1251 |
if (vlan->mode != MACVLAN_MODE_SOURCE) { err = -EINVAL; goto destroy_macvlan_port; } |
79cf79abc macvlan: add sour... |
1252 1253 1254 |
macmode = nla_get_u32(data[IFLA_MACVLAN_MACADDR_MODE]); err = macvlan_changelink_sources(vlan, macmode, data); if (err) |
aa5fd0fb7 driver: macvlan: ... |
1255 |
goto destroy_macvlan_port; |
79cf79abc macvlan: add sour... |
1256 |
} |
47d4ab91e macvlan: resolve ... |
1257 1258 |
err = register_netdevice(dev); if (err < 0) |
aa5fd0fb7 driver: macvlan: ... |
1259 |
goto destroy_macvlan_port; |
47d4ab91e macvlan: resolve ... |
1260 |
|
a6cc0cfa7 net: Add layer 2 ... |
1261 |
dev->priv_flags |= IFF_MACVLAN; |
7cd43db77 macvlan: add link... |
1262 1263 |
err = netdev_upper_dev_link(lowerdev, dev); if (err) |
da37705ce macvlan: unregist... |
1264 |
goto unregister_netdev; |
b863ceb7d [NET]: Add macvla... |
1265 |
|
233c7df08 macvlan: fix pass... |
1266 |
list_add_tail_rcu(&vlan->list, &port->vlans); |
fc4a74896 netdevice: provid... |
1267 |
netif_stacked_transfer_operstate(lowerdev, dev); |
de7d244d0 macvlan: make ope... |
1268 |
linkwatch_fire_event(dev); |
f16d3d574 macvlan: do prope... |
1269 |
|
b863ceb7d [NET]: Add macvla... |
1270 |
return 0; |
f16d3d574 macvlan: do prope... |
1271 |
|
da37705ce macvlan: unregist... |
1272 1273 |
unregister_netdev: unregister_netdevice(dev); |
aa5fd0fb7 driver: macvlan: ... |
1274 1275 1276 |
destroy_macvlan_port: if (create) macvlan_port_destroy(port->dev); |
f16d3d574 macvlan: do prope... |
1277 |
return err; |
b863ceb7d [NET]: Add macvla... |
1278 |
} |
fc0663d6b macvlan: allow mu... |
1279 |
EXPORT_SYMBOL_GPL(macvlan_common_newlink); |
b863ceb7d [NET]: Add macvla... |
1280 |
|
fc0663d6b macvlan: allow mu... |
1281 1282 1283 |
static int macvlan_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[]) { |
2f6a1b660 macvlan: Remove c... |
1284 |
return macvlan_common_newlink(src_net, dev, tb, data); |
fc0663d6b macvlan: allow mu... |
1285 1286 1287 |
} void macvlan_dellink(struct net_device *dev, struct list_head *head) |
b863ceb7d [NET]: Add macvla... |
1288 1289 |
{ struct macvlan_dev *vlan = netdev_priv(dev); |
b863ceb7d [NET]: Add macvla... |
1290 |
|
79cf79abc macvlan: add sour... |
1291 1292 |
if (vlan->mode == MACVLAN_MODE_SOURCE) macvlan_flush_sources(vlan->port, vlan); |
233c7df08 macvlan: fix pass... |
1293 |
list_del_rcu(&vlan->list); |
23289a37e net: add a list_h... |
1294 |
unregister_netdevice_queue(dev, head); |
7cd43db77 macvlan: add link... |
1295 |
netdev_upper_dev_unlink(vlan->lowerdev, dev); |
b863ceb7d [NET]: Add macvla... |
1296 |
} |
fc0663d6b macvlan: allow mu... |
1297 |
EXPORT_SYMBOL_GPL(macvlan_dellink); |
b863ceb7d [NET]: Add macvla... |
1298 |
|
27c0b1a85 macvlan: export m... |
1299 1300 1301 1302 |
static int macvlan_changelink(struct net_device *dev, struct nlattr *tb[], struct nlattr *data[]) { struct macvlan_dev *vlan = netdev_priv(dev); |
266e83474 macvlan: better m... |
1303 1304 |
enum macvlan_mode mode; bool set_mode = false; |
79cf79abc macvlan: add sour... |
1305 1306 |
enum macvlan_macaddr_mode macmode; int ret; |
266e83474 macvlan: better m... |
1307 1308 1309 1310 1311 1312 1313 1314 1315 |
/* Validate mode, but don't set yet: setting flags may fail. */ if (data && data[IFLA_MACVLAN_MODE]) { set_mode = true; mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); /* Passthrough mode can't be set or cleared dynamically */ if ((mode == MACVLAN_MODE_PASSTHRU) != (vlan->mode == MACVLAN_MODE_PASSTHRU)) return -EINVAL; |
79cf79abc macvlan: add sour... |
1316 1317 1318 |
if (vlan->mode == MACVLAN_MODE_SOURCE && vlan->mode != mode) macvlan_flush_sources(vlan->port, vlan); |
266e83474 macvlan: better m... |
1319 |
} |
99ffc3e74 macvlan: don't to... |
1320 |
|
df8ef8f3a macvlan: add FDB ... |
1321 1322 1323 |
if (data && data[IFLA_MACVLAN_FLAGS]) { __u16 flags = nla_get_u16(data[IFLA_MACVLAN_FLAGS]); bool promisc = (flags ^ vlan->flags) & MACVLAN_FLAG_NOPROMISC; |
99ffc3e74 macvlan: don't to... |
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 |
if (vlan->port->passthru && promisc) { int err; if (flags & MACVLAN_FLAG_NOPROMISC) err = dev_set_promiscuity(vlan->lowerdev, -1); else err = dev_set_promiscuity(vlan->lowerdev, 1); if (err < 0) return err; } |
df8ef8f3a macvlan: add FDB ... |
1334 1335 |
vlan->flags = flags; } |
266e83474 macvlan: better m... |
1336 1337 |
if (set_mode) vlan->mode = mode; |
79cf79abc macvlan: add sour... |
1338 1339 1340 1341 1342 1343 1344 1345 |
if (data && data[IFLA_MACVLAN_MACADDR_MODE]) { if (vlan->mode != MACVLAN_MODE_SOURCE) return -EINVAL; macmode = nla_get_u32(data[IFLA_MACVLAN_MACADDR_MODE]); ret = macvlan_changelink_sources(vlan, macmode, data); if (ret) return ret; } |
27c0b1a85 macvlan: export m... |
1346 1347 |
return 0; } |
79cf79abc macvlan: add sour... |
1348 1349 1350 1351 1352 1353 1354 |
static size_t macvlan_get_size_mac(const struct macvlan_dev *vlan) { if (vlan->macaddr_count == 0) return 0; return nla_total_size(0) /* IFLA_MACVLAN_MACADDR_DATA */ + vlan->macaddr_count * nla_total_size(sizeof(u8) * ETH_ALEN); } |
27c0b1a85 macvlan: export m... |
1355 1356 |
static size_t macvlan_get_size(const struct net_device *dev) { |
79cf79abc macvlan: add sour... |
1357 |
struct macvlan_dev *vlan = netdev_priv(dev); |
01fe944f1 macvlan: fix macv... |
1358 1359 1360 |
return (0 + nla_total_size(4) /* IFLA_MACVLAN_MODE */ + nla_total_size(2) /* IFLA_MACVLAN_FLAGS */ |
79cf79abc macvlan: add sour... |
1361 1362 |
+ nla_total_size(4) /* IFLA_MACVLAN_MACADDR_COUNT */ + macvlan_get_size_mac(vlan) /* IFLA_MACVLAN_MACADDR */ |
01fe944f1 macvlan: fix macv... |
1363 |
); |
27c0b1a85 macvlan: export m... |
1364 |
} |
79cf79abc macvlan: add sour... |
1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 |
static int macvlan_fill_info_macaddr(struct sk_buff *skb, const struct macvlan_dev *vlan, const int i) { struct hlist_head *h = &vlan->port->vlan_source_hash[i]; struct macvlan_source_entry *entry; hlist_for_each_entry_rcu(entry, h, hlist) { if (entry->vlan != vlan) continue; if (nla_put(skb, IFLA_MACVLAN_MACADDR, ETH_ALEN, entry->addr)) return 1; } return 0; } |
27c0b1a85 macvlan: export m... |
1380 1381 1382 1383 |
static int macvlan_fill_info(struct sk_buff *skb, const struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); |
79cf79abc macvlan: add sour... |
1384 1385 |
int i; struct nlattr *nest; |
27c0b1a85 macvlan: export m... |
1386 |
|
ead9a76ce macvlan: Stop usi... |
1387 1388 |
if (nla_put_u32(skb, IFLA_MACVLAN_MODE, vlan->mode)) goto nla_put_failure; |
df8ef8f3a macvlan: add FDB ... |
1389 1390 |
if (nla_put_u16(skb, IFLA_MACVLAN_FLAGS, vlan->flags)) goto nla_put_failure; |
79cf79abc macvlan: add sour... |
1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 |
if (nla_put_u32(skb, IFLA_MACVLAN_MACADDR_COUNT, vlan->macaddr_count)) goto nla_put_failure; if (vlan->macaddr_count > 0) { nest = nla_nest_start(skb, IFLA_MACVLAN_MACADDR_DATA); if (nest == NULL) goto nla_put_failure; for (i = 0; i < MACVLAN_HASH_SIZE; i++) { if (macvlan_fill_info_macaddr(skb, vlan, i)) goto nla_put_failure; } nla_nest_end(skb, nest); } |
27c0b1a85 macvlan: export m... |
1404 1405 1406 1407 1408 1409 1410 |
return 0; nla_put_failure: return -EMSGSIZE; } static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = { |
df8ef8f3a macvlan: add FDB ... |
1411 1412 |
[IFLA_MACVLAN_MODE] = { .type = NLA_U32 }, [IFLA_MACVLAN_FLAGS] = { .type = NLA_U16 }, |
79cf79abc macvlan: add sour... |
1413 1414 1415 1416 |
[IFLA_MACVLAN_MACADDR_MODE] = { .type = NLA_U32 }, [IFLA_MACVLAN_MACADDR] = { .type = NLA_BINARY, .len = MAX_ADDR_LEN }, [IFLA_MACVLAN_MACADDR_DATA] = { .type = NLA_NESTED }, [IFLA_MACVLAN_MACADDR_COUNT] = { .type = NLA_U32 }, |
27c0b1a85 macvlan: export m... |
1417 |
}; |
fc0663d6b macvlan: allow mu... |
1418 1419 1420 1421 |
int macvlan_link_register(struct rtnl_link_ops *ops) { /* common fields */ ops->priv_size = sizeof(struct macvlan_dev); |
fc0663d6b macvlan: allow mu... |
1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 |
ops->validate = macvlan_validate; ops->maxtype = IFLA_MACVLAN_MAX; ops->policy = macvlan_policy; ops->changelink = macvlan_changelink; ops->get_size = macvlan_get_size; ops->fill_info = macvlan_fill_info; return rtnl_link_register(ops); }; EXPORT_SYMBOL_GPL(macvlan_link_register); |
eaca400f1 macvlan: advertis... |
1432 1433 1434 1435 |
static struct net *macvlan_get_link_net(const struct net_device *dev) { return dev_net(macvlan_dev_real_dev(dev)); } |
fc0663d6b macvlan: allow mu... |
1436 |
static struct rtnl_link_ops macvlan_link_ops = { |
b863ceb7d [NET]: Add macvla... |
1437 |
.kind = "macvlan", |
8a35747a5 macvtap: Limit pa... |
1438 |
.setup = macvlan_setup, |
b863ceb7d [NET]: Add macvla... |
1439 1440 |
.newlink = macvlan_newlink, .dellink = macvlan_dellink, |
eaca400f1 macvlan: advertis... |
1441 |
.get_link_net = macvlan_get_link_net, |
b863ceb7d [NET]: Add macvla... |
1442 1443 1444 1445 1446 |
}; static int macvlan_device_event(struct notifier_block *unused, unsigned long event, void *ptr) { |
351638e7d net: pass info st... |
1447 |
struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
b863ceb7d [NET]: Add macvla... |
1448 1449 |
struct macvlan_dev *vlan, *next; struct macvlan_port *port; |
226bd3411 net: use batched ... |
1450 |
LIST_HEAD(list_kill); |
b863ceb7d [NET]: Add macvla... |
1451 |
|
a35e2c1b6 macvlan: use rx_h... |
1452 |
if (!macvlan_port_exists(dev)) |
b863ceb7d [NET]: Add macvla... |
1453 |
return NOTIFY_DONE; |
e052f7e64 macvlan: use the ... |
1454 |
port = macvlan_port_get_rtnl(dev); |
a35e2c1b6 macvlan: use rx_h... |
1455 |
|
b863ceb7d [NET]: Add macvla... |
1456 |
switch (event) { |
de7d244d0 macvlan: make ope... |
1457 |
case NETDEV_UP: |
b863ceb7d [NET]: Add macvla... |
1458 1459 |
case NETDEV_CHANGE: list_for_each_entry(vlan, &port->vlans, list) |
fc4a74896 netdevice: provid... |
1460 1461 |
netif_stacked_transfer_operstate(vlan->lowerdev, vlan->dev); |
b863ceb7d [NET]: Add macvla... |
1462 1463 1464 |
break; case NETDEV_FEAT_CHANGE: list_for_each_entry(vlan, &port->vlans, list) { |
8c2acc53f macvlan: fix gso_... |
1465 |
vlan->dev->gso_max_size = dev->gso_max_size; |
f6773c5e9 vlan: propagate g... |
1466 |
vlan->dev->gso_max_segs = dev->gso_max_segs; |
797f87f83 macvlan: fix netd... |
1467 |
netdev_update_features(vlan->dev); |
b863ceb7d [NET]: Add macvla... |
1468 1469 |
} break; |
3763e7ef1 macvlan: Propagat... |
1470 1471 1472 1473 1474 1475 1476 |
case NETDEV_CHANGEMTU: list_for_each_entry(vlan, &port->vlans, list) { if (vlan->dev->mtu <= dev->mtu) continue; dev_set_mtu(vlan->dev, dev->mtu); } break; |
e289fd281 macvlan: fix the ... |
1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 |
case NETDEV_CHANGEADDR: if (!port->passthru) return NOTIFY_DONE; vlan = list_first_entry_or_null(&port->vlans, struct macvlan_dev, list); if (macvlan_sync_address(vlan->dev, dev->dev_addr)) return NOTIFY_BAD; break; |
b863ceb7d [NET]: Add macvla... |
1489 |
case NETDEV_UNREGISTER: |
3b27e1055 netns: keep vlan ... |
1490 1491 1492 |
/* twiddle thumbs on netns device moves */ if (dev->reg_state != NETREG_UNREGISTERING) break; |
b863ceb7d [NET]: Add macvla... |
1493 |
list_for_each_entry_safe(vlan, next, &port->vlans, list) |
226bd3411 net: use batched ... |
1494 1495 |
vlan->dev->rtnl_link_ops->dellink(vlan->dev, &list_kill); unregister_netdevice_many(&list_kill); |
b863ceb7d [NET]: Add macvla... |
1496 |
break; |
1c01fe14a net: forbid under... |
1497 1498 1499 |
case NETDEV_PRE_TYPE_CHANGE: /* Forbid underlaying device to change its type. */ return NOTIFY_BAD; |
4c9912556 macvlan: Support ... |
1500 1501 1502 1503 1504 1505 1506 |
case NETDEV_NOTIFY_PEERS: case NETDEV_BONDING_FAILOVER: case NETDEV_RESEND_IGMP: /* Propagate to all vlans */ list_for_each_entry(vlan, &port->vlans, list) call_netdevice_notifiers(event, vlan->dev); |
b863ceb7d [NET]: Add macvla... |
1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 |
} return NOTIFY_DONE; } static struct notifier_block macvlan_notifier_block __read_mostly = { .notifier_call = macvlan_device_event, }; static int __init macvlan_init_module(void) { int err; register_netdevice_notifier(&macvlan_notifier_block); |
b863ceb7d [NET]: Add macvla... |
1520 |
|
fc0663d6b macvlan: allow mu... |
1521 |
err = macvlan_link_register(&macvlan_link_ops); |
b863ceb7d [NET]: Add macvla... |
1522 1523 1524 1525 |
if (err < 0) goto err1; return 0; err1: |
b863ceb7d [NET]: Add macvla... |
1526 1527 1528 1529 1530 1531 1532 |
unregister_netdevice_notifier(&macvlan_notifier_block); return err; } static void __exit macvlan_cleanup_module(void) { rtnl_link_unregister(&macvlan_link_ops); |
b863ceb7d [NET]: Add macvla... |
1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 |
unregister_netdevice_notifier(&macvlan_notifier_block); } module_init(macvlan_init_module); module_exit(macvlan_cleanup_module); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); MODULE_DESCRIPTION("Driver for MAC address based VLANs"); MODULE_ALIAS_RTNL_LINK("macvlan"); |