diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 656 |
1 files changed, 337 insertions, 319 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 278d489aad3..84945470ab3 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -191,7 +191,6 @@ static struct list_head ptype_all __read_mostly; /* Taps */ * semaphore held. */ DEFINE_RWLOCK(dev_base_lock); - EXPORT_SYMBOL(dev_base_lock); #define NETDEV_HASHBITS 8 @@ -248,6 +247,7 @@ static RAW_NOTIFIER_HEAD(netdev_chain); */ DEFINE_PER_CPU(struct softnet_data, softnet_data); +EXPORT_PER_CPU_SYMBOL(softnet_data); #ifdef CONFIG_LOCKDEP /* @@ -269,10 +269,10 @@ static const unsigned short netdev_lock_type[] = ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL, ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211, ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET, - ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154, ARPHRD_IEEE802154_PHY, + ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154, ARPHRD_VOID, ARPHRD_NONE}; -static const char *netdev_lock_name[] = +static const char *const netdev_lock_name[] = {"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25", "_xmit_PRONET", "_xmit_CHAOS", "_xmit_IEEE802", "_xmit_ARCNET", "_xmit_APPLETLK", "_xmit_DLCI", "_xmit_ATM", "_xmit_METRICOM", @@ -287,7 +287,7 @@ static const char *netdev_lock_name[] = "_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL", "_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211", "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET", - "_xmit_PHONET_PIPE", "_xmit_IEEE802154", "_xmit_IEEE802154_PHY", + "_xmit_PHONET_PIPE", "_xmit_IEEE802154", "_xmit_VOID", "_xmit_NONE"}; static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)]; @@ -381,6 +381,7 @@ void dev_add_pack(struct packet_type *pt) } spin_unlock_bh(&ptype_lock); } +EXPORT_SYMBOL(dev_add_pack); /** * __dev_remove_pack - remove packet handler @@ -418,6 +419,8 @@ void __dev_remove_pack(struct packet_type *pt) out: spin_unlock_bh(&ptype_lock); } +EXPORT_SYMBOL(__dev_remove_pack); + /** * dev_remove_pack - remove packet handler * @pt: packet type declaration @@ -436,6 +439,7 @@ void dev_remove_pack(struct packet_type *pt) synchronize_net(); } +EXPORT_SYMBOL(dev_remove_pack); /****************************************************************************** @@ -499,6 +503,7 @@ int netdev_boot_setup_check(struct net_device *dev) } return 0; } +EXPORT_SYMBOL(netdev_boot_setup_check); /** @@ -591,6 +596,7 @@ struct net_device *__dev_get_by_name(struct net *net, const char *name) } return NULL; } +EXPORT_SYMBOL(__dev_get_by_name); /** * dev_get_by_name - find a device by its name @@ -615,6 +621,7 @@ struct net_device *dev_get_by_name(struct net *net, const char *name) read_unlock(&dev_base_lock); return dev; } +EXPORT_SYMBOL(dev_get_by_name); /** * __dev_get_by_index - find a device by its ifindex @@ -640,6 +647,7 @@ struct net_device *__dev_get_by_index(struct net *net, int ifindex) } return NULL; } +EXPORT_SYMBOL(__dev_get_by_index); /** @@ -664,6 +672,7 @@ struct net_device *dev_get_by_index(struct net *net, int ifindex) read_unlock(&dev_base_lock); return dev; } +EXPORT_SYMBOL(dev_get_by_index); /** * dev_getbyhwaddr - find a device by its hardware address @@ -693,7 +702,6 @@ struct net_device *dev_getbyhwaddr(struct net *net, unsigned short type, char *h return NULL; } - EXPORT_SYMBOL(dev_getbyhwaddr); struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type) @@ -707,7 +715,6 @@ struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type) return NULL; } - EXPORT_SYMBOL(__dev_getfirstbyhwtype); struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type) @@ -721,7 +728,6 @@ struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type) rtnl_unlock(); return dev; } - EXPORT_SYMBOL(dev_getfirstbyhwtype); /** @@ -736,7 +742,8 @@ EXPORT_SYMBOL(dev_getfirstbyhwtype); * dev_put to indicate they have finished with it. */ -struct net_device * dev_get_by_flags(struct net *net, unsigned short if_flags, unsigned short mask) +struct net_device *dev_get_by_flags(struct net *net, unsigned short if_flags, + unsigned short mask) { struct net_device *dev, *ret; @@ -752,6 +759,7 @@ struct net_device * dev_get_by_flags(struct net *net, unsigned short if_flags, u read_unlock(&dev_base_lock); return ret; } +EXPORT_SYMBOL(dev_get_by_flags); /** * dev_valid_name - check if name is okay for network device @@ -777,6 +785,7 @@ int dev_valid_name(const char *name) } return 1; } +EXPORT_SYMBOL(dev_valid_name); /** * __dev_alloc_name - allocate a name for a device @@ -870,6 +879,7 @@ int dev_alloc_name(struct net_device *dev, const char *name) strlcpy(dev->name, buf, IFNAMSIZ); return ret; } +EXPORT_SYMBOL(dev_alloc_name); /** @@ -906,8 +916,7 @@ int dev_change_name(struct net_device *dev, const char *newname) err = dev_alloc_name(dev, newname); if (err < 0) return err; - } - else if (__dev_get_by_name(net, newname)) + } else if (__dev_get_by_name(net, newname)) return -EEXIST; else strlcpy(dev->name, newname, IFNAMSIZ); @@ -970,7 +979,7 @@ int dev_set_alias(struct net_device *dev, const char *alias, size_t len) return 0; } - dev->ifalias = krealloc(dev->ifalias, len+1, GFP_KERNEL); + dev->ifalias = krealloc(dev->ifalias, len + 1, GFP_KERNEL); if (!dev->ifalias) return -ENOMEM; @@ -1006,6 +1015,7 @@ void netdev_state_change(struct net_device *dev) rtmsg_ifinfo(RTM_NEWLINK, dev, 0); } } +EXPORT_SYMBOL(netdev_state_change); void netdev_bonding_change(struct net_device *dev) { @@ -1034,6 +1044,7 @@ void dev_load(struct net *net, const char *name) if (!dev && capable(CAP_NET_ADMIN)) request_module("%s", name); } +EXPORT_SYMBOL(dev_load); /** * dev_open - prepare an interface for use. @@ -1118,6 +1129,7 @@ int dev_open(struct net_device *dev) return ret; } +EXPORT_SYMBOL(dev_open); /** * dev_close - shutdown an interface. @@ -1184,6 +1196,7 @@ int dev_close(struct net_device *dev) return 0; } +EXPORT_SYMBOL(dev_close); /** @@ -1279,6 +1292,7 @@ rollback: raw_notifier_chain_unregister(&netdev_chain, nb); goto unlock; } +EXPORT_SYMBOL(register_netdevice_notifier); /** * unregister_netdevice_notifier - unregister a network notifier block @@ -1299,6 +1313,7 @@ int unregister_netdevice_notifier(struct notifier_block *nb) rtnl_unlock(); return err; } +EXPORT_SYMBOL(unregister_netdevice_notifier); /** * call_netdevice_notifiers - call all network notifier blocks @@ -1321,11 +1336,13 @@ void net_enable_timestamp(void) { atomic_inc(&netstamp_needed); } +EXPORT_SYMBOL(net_enable_timestamp); void net_disable_timestamp(void) { atomic_dec(&netstamp_needed); } +EXPORT_SYMBOL(net_disable_timestamp); static inline void net_timestamp(struct sk_buff *skb) { @@ -1359,7 +1376,7 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev) if ((ptype->dev == dev || !ptype->dev) && (ptype->af_packet_priv == NULL || (struct sock *)ptype->af_packet_priv != skb->sk)) { - struct sk_buff *skb2= skb_clone(skb, GFP_ATOMIC); + struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC); if (!skb2) break; @@ -1527,6 +1544,7 @@ out_set_summed: out: return ret; } +EXPORT_SYMBOL(skb_checksum_help); /** * skb_gso_segment - Perform segmentation on skb. @@ -1589,7 +1607,6 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features) return segs; } - EXPORT_SYMBOL(skb_gso_segment); /* Take action when hardware reception checksum errors are detected. */ @@ -1704,7 +1721,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, skb_dst_drop(skb); rc = ops->ndo_start_xmit(skb, dev); - if (rc == 0) + if (rc == NETDEV_TX_OK) txq_trans_update(txq); /* * TODO: if skb_orphan() was called by @@ -1730,7 +1747,7 @@ gso: skb->next = nskb->next; nskb->next = NULL; rc = ops->ndo_start_xmit(nskb, dev); - if (unlikely(rc)) { + if (unlikely(rc != NETDEV_TX_OK)) { nskb->next = skb->next; skb->next = nskb; return rc; @@ -1744,7 +1761,7 @@ gso: out_kfree_skb: kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } static u32 skb_tx_hashrnd; @@ -1755,7 +1772,7 @@ u16 skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb) if (skb_rx_queue_recorded(skb)) { hash = skb_get_rx_queue(skb); - while (unlikely (hash >= dev->real_num_tx_queues)) + while (unlikely(hash >= dev->real_num_tx_queues)) hash -= dev->real_num_tx_queues; return hash; } @@ -1786,6 +1803,40 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev, return netdev_get_tx_queue(dev, queue_index); } +static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, + struct net_device *dev, + struct netdev_queue *txq) +{ + spinlock_t *root_lock = qdisc_lock(q); + int rc; + + spin_lock(root_lock); + if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) { + kfree_skb(skb); + rc = NET_XMIT_DROP; + } else if ((q->flags & TCQ_F_CAN_BYPASS) && !qdisc_qlen(q) && + !test_and_set_bit(__QDISC_STATE_RUNNING, &q->state)) { + /* + * This is a work-conserving queue; there are no old skbs + * waiting to be sent out; and the qdisc is not running - + * xmit the skb directly. + */ + __qdisc_update_bstats(q, skb->len); + if (sch_direct_xmit(skb, q, dev, txq, root_lock)) + __qdisc_run(q); + else + clear_bit(__QDISC_STATE_RUNNING, &q->state); + + rc = NET_XMIT_SUCCESS; + } else { + rc = qdisc_enqueue_root(skb, q); + qdisc_run(q); + } + spin_unlock(root_lock); + + return rc; +} + /** * dev_queue_xmit - transmit a buffer * @skb: buffer to transmit @@ -1856,22 +1907,10 @@ gso: q = rcu_dereference(txq->qdisc); #ifdef CONFIG_NET_CLS_ACT - skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_EGRESS); + skb->tc_verd = SET_TC_AT(skb->tc_verd, AT_EGRESS); #endif if (q->enqueue) { - spinlock_t *root_lock = qdisc_lock(q); - - spin_lock(root_lock); - - if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) { - kfree_skb(skb); - rc = NET_XMIT_DROP; - } else { - rc = qdisc_enqueue_root(skb, q); - qdisc_run(q); - } - spin_unlock(root_lock); - + rc = __dev_xmit_skb(skb, q, dev, txq); goto out; } @@ -1895,7 +1934,7 @@ gso: HARD_TX_LOCK(dev, txq, cpu); if (!netif_tx_queue_stopped(txq)) { - rc = 0; + rc = NET_XMIT_SUCCESS; if (!dev_hard_start_xmit(skb, dev, txq)) { HARD_TX_UNLOCK(dev, txq); goto out; @@ -1924,6 +1963,7 @@ out: rcu_read_unlock_bh(); return rc; } +EXPORT_SYMBOL(dev_queue_xmit); /*======================================================================= @@ -1990,6 +2030,7 @@ enqueue: kfree_skb(skb); return NET_RX_DROP; } +EXPORT_SYMBOL(netif_rx); int netif_rx_ni(struct sk_buff *skb) { @@ -2003,7 +2044,6 @@ int netif_rx_ni(struct sk_buff *skb) return err; } - EXPORT_SYMBOL(netif_rx_ni); static void net_tx_action(struct softirq_action *h) @@ -2076,7 +2116,7 @@ static inline int deliver_skb(struct sk_buff *skb, /* This hook is defined here for ATM LANE */ int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr) __read_mostly; -EXPORT_SYMBOL(br_fdb_test_addr_hook); +EXPORT_SYMBOL_GPL(br_fdb_test_addr_hook); #endif /* @@ -2085,7 +2125,7 @@ EXPORT_SYMBOL(br_fdb_test_addr_hook); */ struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff *skb) __read_mostly; -EXPORT_SYMBOL(br_handle_frame_hook); +EXPORT_SYMBOL_GPL(br_handle_frame_hook); static inline struct sk_buff *handle_bridge(struct sk_buff *skb, struct packet_type **pt_prev, int *ret, @@ -2336,6 +2376,7 @@ out: rcu_read_unlock(); return ret; } +EXPORT_SYMBOL(netif_receive_skb); /* Network device is going away, flush any packets still pending */ static void flush_backlog(void *arg) @@ -2852,7 +2893,7 @@ softnet_break: goto out; } -static gifconf_func_t * gifconf_list [NPROTO]; +static gifconf_func_t *gifconf_list[NPROTO]; /** * register_gifconf - register a SIOCGIF handler @@ -2863,13 +2904,14 @@ static gifconf_func_t * gifconf_list [NPROTO]; * that is passed must not be freed or reused until it has been replaced * by another handler. */ -int register_gifconf(unsigned int family, gifconf_func_t * gifconf) +int register_gifconf(unsigned int family, gifconf_func_t *gifconf) { if (family >= NPROTO) return -EINVAL; gifconf_list[family] = gifconf; return 0; } +EXPORT_SYMBOL(register_gifconf); /* @@ -3080,7 +3122,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v) seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n", s->total, s->dropped, s->time_squeeze, 0, 0, 0, 0, 0, /* was fastroute */ - s->cpu_collision ); + s->cpu_collision); return 0; } @@ -3316,6 +3358,7 @@ int netdev_set_master(struct net_device *slave, struct net_device *master) rtmsg_ifinfo(RTM_NEWLINK, slave, IFF_SLAVE); return 0; } +EXPORT_SYMBOL(netdev_set_master); static void dev_change_rx_flags(struct net_device *dev, int flags) { @@ -3394,6 +3437,7 @@ int dev_set_promiscuity(struct net_device *dev, int inc) dev_set_rx_mode(dev); return err; } +EXPORT_SYMBOL(dev_set_promiscuity); /** * dev_set_allmulti - update allmulti count on a device @@ -3437,6 +3481,7 @@ int dev_set_allmulti(struct net_device *dev, int inc) } return 0; } +EXPORT_SYMBOL(dev_set_allmulti); /* * Upload unicast and multicast address lists to device and @@ -3927,6 +3972,7 @@ int __dev_addr_sync(struct dev_addr_list **to, int *to_count, } return err; } +EXPORT_SYMBOL_GPL(__dev_addr_sync); void __dev_addr_unsync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count) @@ -3946,6 +3992,7 @@ void __dev_addr_unsync(struct dev_addr_list **to, int *to_count, da = next; } } +EXPORT_SYMBOL_GPL(__dev_addr_unsync); /** * dev_unicast_sync - Synchronize device's unicast list to another device @@ -4064,6 +4111,7 @@ unsigned dev_get_flags(const struct net_device *dev) return flags; } +EXPORT_SYMBOL(dev_get_flags); /** * dev_change_flags - change device settings @@ -4114,12 +4162,13 @@ int dev_change_flags(struct net_device *dev, unsigned flags) } if (dev->flags & IFF_UP && - ((old_flags ^ dev->flags) &~ (IFF_UP | IFF_PROMISC | IFF_ALLMULTI | + ((old_flags ^ dev->flags) & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE))) call_netdevice_notifiers(NETDEV_CHANGE, dev); if ((flags ^ dev->gflags) & IFF_PROMISC) { - int inc = (flags & IFF_PROMISC) ? +1 : -1; + int inc = (flags & IFF_PROMISC) ? 1 : -1; + dev->gflags ^= IFF_PROMISC; dev_set_promiscuity(dev, inc); } @@ -4129,7 +4178,8 @@ int dev_change_flags(struct net_device *dev, unsigned flags) IFF_ALLMULTI is requested not asking us and not reporting. */ if ((flags ^ dev->gflags) & IFF_ALLMULTI) { - int inc = (flags & IFF_ALLMULTI) ? +1 : -1; + int inc = (flags & IFF_ALLMULTI) ? 1 : -1; + dev->gflags ^= IFF_ALLMULTI; dev_set_allmulti(dev, inc); } @@ -4141,6 +4191,7 @@ int dev_change_flags(struct net_device *dev, unsigned flags) return ret; } +EXPORT_SYMBOL(dev_change_flags); /** * dev_set_mtu - Change maximum transfer unit @@ -4174,6 +4225,7 @@ int dev_set_mtu(struct net_device *dev, int new_mtu) call_netdevice_notifiers(NETDEV_CHANGEMTU, dev); return err; } +EXPORT_SYMBOL(dev_set_mtu); /** * dev_set_mac_address - Change Media Access Control Address @@ -4198,6 +4250,7 @@ int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa) call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); return err; } +EXPORT_SYMBOL(dev_set_mac_address); /* * Perform the SIOCxIFxxx calls, inside read_lock(dev_base_lock) @@ -4211,56 +4264,56 @@ static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cm return -ENODEV; switch (cmd) { - case SIOCGIFFLAGS: /* Get interface flags */ - ifr->ifr_flags = (short) dev_get_flags(dev); - return 0; + case SIOCGIFFLAGS: /* Get interface flags */ + ifr->ifr_flags = (short) dev_get_flags(dev); + return 0; - case SIOCGIFMETRIC: /* Get the metric on the interface - (currently unused) */ - ifr->ifr_metric = 0; - return 0; + case SIOCGIFMETRIC: /* Get the metric on the interface + (currently unused) */ + ifr->ifr_metric = 0; + return 0; - case SIOCGIFMTU: /* Get the MTU of a device */ - ifr->ifr_mtu = dev->mtu; - return 0; + case SIOCGIFMTU: /* Get the MTU of a device */ + ifr->ifr_mtu = dev->mtu; + return 0; - case SIOCGIFHWADDR: - if (!dev->addr_len) - memset(ifr->ifr_hwaddr.sa_data, 0, sizeof ifr->ifr_hwaddr.sa_data); - else - memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr, - min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len)); - ifr->ifr_hwaddr.sa_family = dev->type; - return 0; + case SIOCGIFHWADDR: + if (!dev->addr_len) + memset(ifr->ifr_hwaddr.sa_data, 0, sizeof ifr->ifr_hwaddr.sa_data); + else + memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr, + min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len)); + ifr->ifr_hwaddr.sa_family = dev->type; + return 0; - case SIOCGIFSLAVE: - err = -EINVAL; - break; + case SIOCGIFSLAVE: + err = -EINVAL; + break; - case SIOCGIFMAP: - ifr->ifr_map.mem_start = dev->mem_start; - ifr->ifr_map.mem_end = dev->mem_end; - ifr->ifr_map.base_addr = dev->base_addr; - ifr->ifr_map.irq = dev->irq; - ifr->ifr_map.dma = dev->dma; - ifr->ifr_map.port = dev->if_port; - return 0; + case SIOCGIFMAP: + ifr->ifr_map.mem_start = dev->mem_start; + ifr->ifr_map.mem_end = dev->mem_end; + ifr->ifr_map.base_addr = dev->base_addr; + ifr->ifr_map.irq = dev->irq; + ifr->ifr_map.dma = dev->dma; + ifr->ifr_map.port = dev->if_port; + return 0; - case SIOCGIFINDEX: - ifr->ifr_ifindex = dev->ifindex; - return 0; + case SIOCGIFINDEX: + ifr->ifr_ifindex = dev->ifindex; + return 0; - case SIOCGIFTXQLEN: - ifr->ifr_qlen = dev->tx_queue_len; - return 0; + case SIOCGIFTXQLEN: + ifr->ifr_qlen = dev->tx_queue_len; + return 0; - default: - /* dev_ioctl() should ensure this case - * is never reached - */ - WARN_ON(1); - err = -EINVAL; - break; + default: + /* dev_ioctl() should ensure this case + * is never reached + */ + WARN_ON(1); + err = -EINVAL; + break; } return err; @@ -4281,92 +4334,91 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) ops = dev->netdev_ops; switch (cmd) { - case SIOCSIFFLAGS: /* Set interface flags */ - return dev_change_flags(dev, ifr->ifr_flags); - - case SIOCSIFMETRIC: /* Set the metric on the interface - (currently unused) */ - return -EOPNOTSUPP; + case SIOCSIFFLAGS: /* Set interface flags */ + return dev_change_flags(dev, ifr->ifr_flags); - case SIOCSIFMTU: /* Set the MTU of a device */ - return dev_set_mtu(dev, ifr->ifr_mtu); + case SIOCSIFMETRIC: /* Set the metric on the interface + (currently unused) */ + return -EOPNOTSUPP; - case SIOCSIFHWADDR: - return dev_set_mac_address(dev, &ifr->ifr_hwaddr); + case SIOCSIFMTU: /* Set the MTU of a device */ + return dev_set_mtu(dev, ifr->ifr_mtu); - case SIOCSIFHWBROADCAST: - if (ifr->ifr_hwaddr.sa_family != dev->type) - return -EINVAL; - memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data, - min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len)); - call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); - return 0; + case SIOCSIFHWADDR: + return dev_set_mac_address(dev, &ifr->ifr_hwaddr); - case SIOCSIFMAP: - if (ops->ndo_set_config) { - if (!netif_device_present(dev)) - return -ENODEV; - return ops->ndo_set_config(dev, &ifr->ifr_map); - } - return -EOPNOTSUPP; - - case SIOCADDMULTI: - if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) || - ifr->ifr_hwaddr.sa_family != AF_UNSPEC) - return -EINVAL; - if (!netif_device_present(dev)) - return -ENODEV; - return dev_mc_add(dev, ifr->ifr_hwaddr.sa_data, - dev->addr_len, 1); + case SIOCSIFHWBROADCAST: + if (ifr->ifr_hwaddr.sa_family != dev->type) + return -EINVAL; + memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data, + min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len)); + call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); + return 0; - case SIOCDELMULTI: - if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) || - ifr->ifr_hwaddr.sa_family != AF_UNSPEC) - return -EINVAL; + case SIOCSIFMAP: + if (ops->ndo_set_config) { if (!netif_device_present(dev)) return -ENODEV; - return dev_mc_delete(dev, ifr->ifr_hwaddr.sa_data, - dev->addr_len, 1); + return ops->ndo_set_config(dev, &ifr->ifr_map); + } + return -EOPNOTSUPP; - case SIOCSIFTXQLEN: - if (ifr->ifr_qlen < 0) - return -EINVAL; - dev->tx_queue_len = ifr->ifr_qlen; - return 0; + case SIOCADDMULTI: + if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) || + ifr->ifr_hwaddr.sa_family != AF_UNSPEC) + return -EINVAL; + if (!netif_device_present(dev)) + return -ENODEV; + return dev_mc_add(dev, ifr->ifr_hwaddr.sa_data, + dev->addr_len, 1); + + case SIOCDELMULTI: + if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) || + ifr->ifr_hwaddr.sa_family != AF_UNSPEC) + return -EINVAL; + if (!netif_device_present(dev)) + return -ENODEV; + return dev_mc_delete(dev, ifr->ifr_hwaddr.sa_data, + dev->addr_len, 1); - case SIOCSIFNAME: - ifr->ifr_newname[IFNAMSIZ-1] = '\0'; - return dev_change_name(dev, ifr->ifr_newname); + case SIOCSIFTXQLEN: + if (ifr->ifr_qlen < 0) + return -EINVAL; + dev->tx_queue_len = ifr->ifr_qlen; + return 0; - /* - * Unknown or private ioctl - */ + case SIOCSIFNAME: + ifr->ifr_newname[IFNAMSIZ-1] = '\0'; + return dev_change_name(dev, ifr->ifr_newname); - default: - if ((cmd >= SIOCDEVPRIVATE && - cmd <= SIOCDEVPRIVATE + 15) || - cmd == SIOCBONDENSLAVE || - cmd == SIOCBONDRELEASE || - cmd == SIOCBONDSETHWADDR || - cmd == SIOCBONDSLAVEINFOQUERY || - cmd == SIOCBONDINFOQUERY || - cmd == SIOCBONDCHANGEACTIVE || - cmd == SIOCGMIIPHY || - cmd == SIOCGMIIREG || - cmd == SIOCSMIIREG || - cmd == SIOCBRADDIF || - cmd == SIOCBRDELIF || - cmd == SIOCSHWTSTAMP || - cmd == SIOCWANDEV) { - err = -EOPNOTSUPP; - if (ops->ndo_do_ioctl) { - if (netif_device_present(dev)) - err = ops->ndo_do_ioctl(dev, ifr, cmd); - else - err = -ENODEV; - } - } else - err = -EINVAL; + /* + * Unknown or private ioctl + */ + default: + if ((cmd >= SIOCDEVPRIVATE && + cmd <= SIOCDEVPRIVATE + 15) || + cmd == SIOCBONDENSLAVE || + cmd == SIOCBONDRELEASE || + cmd == SIOCBONDSETHWADDR || + cmd == SIOCBONDSLAVEINFOQUERY || + cmd == SIOCBONDINFOQUERY || + cmd == SIOCBONDCHANGEACTIVE || + cmd == SIOCGMIIPHY || + cmd == SIOCGMIIREG || + cmd == SIOCSMIIREG || + cmd == SIOCBRADDIF || + cmd == SIOCBRDELIF || + cmd == SIOCSHWTSTAMP || + cmd == SIOCWANDEV) { + err = -EOPNOTSUPP; + if (ops->ndo_do_ioctl) { + if (netif_device_present(dev)) + err = ops->ndo_do_ioctl(dev, ifr, cmd); + else + err = -ENODEV; + } + } else + err = -EINVAL; } return err; @@ -4423,135 +4475,135 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg) */ switch (cmd) { - /* - * These ioctl calls: - * - can be done by all. - * - atomic and do not require locking. - * - return a value - */ - case SIOCGIFFLAGS: - case SIOCGIFMETRIC: - case SIOCGIFMTU: - case SIOCGIFHWADDR: - case SIOCGIFSLAVE: - case SIOCGIFMAP: - case SIOCGIFINDEX: - case SIOCGIFTXQLEN: - dev_load(net, ifr.ifr_name); - read_lock(&dev_base_lock); - ret = dev_ifsioc_locked(net, &ifr, cmd); - read_unlock(&dev_base_lock); - if (!ret) { - if (colon) - *colon = ':'; - if (copy_to_user(arg, &ifr, - sizeof(struct ifreq))) - ret = -EFAULT; - } - return ret; + /* + * These ioctl calls: + * - can be done by all. + * - atomic and do not require locking. + * - return a value + */ + case SIOCGIFFLAGS: + case SIOCGIFMETRIC: + case SIOCGIFMTU: + case SIOCGIFHWADDR: + case SIOCGIFSLAVE: + case SIOCGIFMAP: + case SIOCGIFINDEX: + case SIOCGIFTXQLEN: + dev_load(net, ifr.ifr_name); + read_lock(&dev_base_lock); + ret = dev_ifsioc_locked(net, &ifr, cmd); + read_unlock(&dev_base_lock); + if (!ret) { + if (colon) + *colon = ':'; + if (copy_to_user(arg, &ifr, + sizeof(struct ifreq))) + ret = -EFAULT; + } + return ret; - case SIOCETHTOOL: - dev_load(net, ifr.ifr_name); - rtnl_lock(); - ret = dev_ethtool(net, &ifr); - rtnl_unlock(); - if (!ret) { - if (colon) - *colon = ':'; - if (copy_to_user(arg, &ifr, - sizeof(struct ifreq))) - ret = -EFAULT; - } - return ret; + case SIOCETHTOOL: + dev_load(net, ifr.ifr_name); + rtnl_lock(); + ret = dev_ethtool(net, &ifr); + rtnl_unlock(); + if (!ret) { + if (colon) + *colon = ':'; + if (copy_to_user(arg, &ifr, + sizeof(struct ifreq))) + ret = -EFAULT; + } + return ret; - /* - * These ioctl calls: - * - require superuser power. - * - require strict serialization. - * - return a value - */ - case SIOCGMIIPHY: - case SIOCGMIIREG: - case SIOCSIFNAME: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - dev_load(net, ifr.ifr_name); - rtnl_lock(); - ret = dev_ifsioc(net, &ifr, cmd); - rtnl_unlock(); - if (!ret) { - if (colon) - *colon = ':'; - if (copy_to_user(arg, &ifr, - sizeof(struct ifreq))) - ret = -EFAULT; - } - return ret; + /* + * These ioctl calls: + * - require superuser power. + * - require strict serialization. + * - return a value + */ + case SIOCGMIIPHY: + case SIOCGMIIREG: + case SIOCSIFNAME: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + dev_load(net, ifr.ifr_name); + rtnl_lock(); + ret = dev_ifsioc(net, &ifr, cmd); + rtnl_unlock(); + if (!ret) { + if (colon) + *colon = ':'; + if (copy_to_user(arg, &ifr, + sizeof(struct ifreq))) + ret = -EFAULT; + } + return ret; - /* - * These ioctl calls: - * - require superuser power. - * - require strict serialization. - * - do not return a value - */ - case SIOCSIFFLAGS: - case SIOCSIFMETRIC: - case SIOCSIFMTU: - case SIOCSIFMAP: - case SIOCSIFHWADDR: - case SIOCSIFSLAVE: - case SIOCADDMULTI: - case SIOCDELMULTI: - case SIOCSIFHWBROADCAST: - case SIOCSIFTXQLEN: - case SIOCSMIIREG: - case SIOCBONDENSLAVE: - case SIOCBONDRELEASE: - case SIOCBONDSETHWADDR: - case SIOCBONDCHANGEACTIVE: - case SIOCBRADDIF: - case SIOCBRDELIF: - case SIOCSHWTSTAMP: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - /* fall through */ - case SIOCBONDSLAVEINFOQUERY: - case SIOCBONDINFOQUERY: + /* + * These ioctl calls: + * - require superuser power. + * - require strict serialization. + * - do not return a value + */ + case SIOCSIFFLAGS: + case SIOCSIFMETRIC: + case SIOCSIFMTU: + case SIOCSIFMAP: + case SIOCSIFHWADDR: + case SIOCSIFSLAVE: + case SIOCADDMULTI: + case SIOCDELMULTI: + case SIOCSIFHWBROADCAST: + case SIOCSIFTXQLEN: + case SIOCSMIIREG: + case SIOCBONDENSLAVE: + case SIOCBONDRELEASE: + case SIOCBONDSETHWADDR: + case SIOCBONDCHANGEACTIVE: + case SIOCBRADDIF: + case SIOCBRDELIF: + case SIOCSHWTSTAMP: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + /* fall through */ + case SIOCBONDSLAVEINFOQUERY: + case SIOCBONDINFOQUERY: + dev_load(net, ifr.ifr_name); + rtnl_lock(); + ret = dev_ifsioc(net, &ifr, cmd); + rtnl_unlock(); + return ret; + + case SIOCGIFMEM: + /* Get the per device memory space. We can add this but + * currently do not support it */ + case SIOCSIFMEM: + /* Set the per device memory buffer space. + * Not applicable in our case */ + case SIOCSIFLINK: + return -EINVAL; + + /* + * Unknown or private ioctl. + */ + default: + if (cmd == SIOCWANDEV || + (cmd >= SIOCDEVPRIVATE && + cmd <= SIOCDEVPRIVATE + 15)) { dev_load(net, ifr.ifr_name); rtnl_lock(); ret = dev_ifsioc(net, &ifr, cmd); rtnl_unlock(); + if (!ret && copy_to_user(arg, &ifr, + sizeof(struct ifreq))) + ret = -EFAULT; return ret; - - case SIOCGIFMEM: - /* Get the per device memory space. We can add this but - * currently do not support it */ - case SIOCSIFMEM: - /* Set the per device memory buffer space. - * Not applicable in our case */ - case SIOCSIFLINK: - return -EINVAL; - - /* - * Unknown or private ioctl. - */ - default: - if (cmd == SIOCWANDEV || - (cmd >= SIOCDEVPRIVATE && - cmd <= SIOCDEVPRIVATE + 15)) { - dev_load(net, ifr.ifr_name); - rtnl_lock(); - ret = dev_ifsioc(net, &ifr, cmd); - rtnl_unlock(); - if (!ret && copy_to_user(arg, &ifr, - sizeof(struct ifreq))) - ret = -EFAULT; - return ret; - } - /* Take care of Wireless Extensions */ - if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) - return wext_handle_ioctl(net, &ifr, cmd, arg); - return -EINVAL; + } + /* Take care of Wireless Extensions */ + if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) + return wext_handle_ioctl(net, &ifr, cmd, arg); + return -EINVAL; } } @@ -4816,6 +4868,7 @@ err_uninit: dev->netdev_ops->ndo_uninit(dev); goto out; } +EXPORT_SYMBOL(register_netdevice); /** * init_dummy_netdev - init a dummy network device for NAPI @@ -5168,6 +5221,7 @@ void free_netdev(struct net_device *dev) /* will free via device release */ put_device(&dev->dev); } +EXPORT_SYMBOL(free_netdev); /** * synchronize_net - Synchronize with packet receive processing @@ -5180,6 +5234,7 @@ void synchronize_net(void) might_sleep(); synchronize_rcu(); } +EXPORT_SYMBOL(synchronize_net); /** * unregister_netdevice - remove device from the kernel @@ -5200,6 +5255,7 @@ void unregister_netdevice(struct net_device *dev) /* Finish processing unregister after unlock */ net_set_todo(dev); } +EXPORT_SYMBOL(unregister_netdevice); /** * unregister_netdev - remove device from the kernel @@ -5218,7 +5274,6 @@ void unregister_netdev(struct net_device *dev) unregister_netdevice(dev); rtnl_unlock(); } - EXPORT_SYMBOL(unregister_netdev); /** @@ -5347,6 +5402,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char out: return err; } +EXPORT_SYMBOL_GPL(dev_change_net_namespace); static int dev_cpu_callback(struct notifier_block *nfb, unsigned long action, @@ -5407,7 +5463,7 @@ unsigned long netdev_increment_features(unsigned long all, unsigned long one, unsigned long mask) { /* If device needs checksumming, downgrade to it. */ - if (all & NETIF_F_NO_CSUM && !(one & NETIF_F_NO_CSUM)) + if (all & NETIF_F_NO_CSUM && !(one & NETIF_F_NO_CSUM)) all ^= NETIF_F_NO_CSUM | (one & NETIF_F_ALL_CSUM); else if (mask & NETIF_F_ALL_CSUM) { /* If one device supports v4/v6 checksumming, set for all. */ @@ -5633,41 +5689,3 @@ static int __init initialize_hashrnd(void) late_initcall_sync(initialize_hashrnd); -EXPORT_SYMBOL(__dev_get_by_index); -EXPORT_SYMBOL(__dev_get_by_name); -EXPORT_SYMBOL(__dev_remove_pack); -EXPORT_SYMBOL(dev_valid_name); -EXPORT_SYMBOL(dev_add_pack); -EXPORT_SYMBOL(dev_alloc_name); -EXPORT_SYMBOL(dev_close); -EXPORT_SYMBOL(dev_get_by_flags); -EXPORT_SYMBOL(dev_get_by_index); -EXPORT_SYMBOL(dev_get_by_name); -EXPORT_SYMBOL(dev_open); -EXPORT_SYMBOL(dev_queue_xmit); -EXPORT_SYMBOL(dev_remove_pack); -EXPORT_SYMBOL(dev_set_allmulti); -EXPORT_SYMBOL(dev_set_promiscuity); -EXPORT_SYMBOL(dev_change_flags); -EXPORT_SYMBOL(dev_set_mtu); -EXPORT_SYMBOL(dev_set_mac_address); -EXPORT_SYMBOL(free_netdev); -EXPORT_SYMBOL(netdev_boot_setup_check); -EXPORT_SYMBOL(netdev_set_master); -EXPORT_SYMBOL(netdev_state_change); -EXPORT_SYMBOL(netif_receive_skb); -EXPORT_SYMBOL(netif_rx); -EXPORT_SYMBOL(register_gifconf); -EXPORT_SYMBOL(register_netdevice); -EXPORT_SYMBOL(register_netdevice_notifier); -EXPORT_SYMBOL(skb_checksum_help); -EXPORT_SYMBOL(synchronize_net); -EXPORT_SYMBOL(unregister_netdevice); -EXPORT_SYMBOL(unregister_netdevice_notifier); -EXPORT_SYMBOL(net_enable_timestamp); -EXPORT_SYMBOL(net_disable_timestamp); -EXPORT_SYMBOL(dev_get_flags); - -EXPORT_SYMBOL(dev_load); - -EXPORT_PER_CPU_SYMBOL(softnet_data); |