diff options
Diffstat (limited to 'net/8021q/vlan_dev.c')
| -rw-r--r-- | net/8021q/vlan_dev.c | 100 |
1 files changed, 86 insertions, 14 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 9543e91..51ce421 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -47,7 +47,7 @@ * * TODO: This needs a checkup, I'm ignorant here. --BLG */ -int vlan_dev_rebuild_header(struct sk_buff *skb) +static int vlan_dev_rebuild_header(struct sk_buff *skb) { struct net_device *dev = skb->dev; struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); @@ -342,9 +342,10 @@ static inline unsigned short vlan_dev_get_egress_qos_mask(struct net_device* dev * This is called when the SKB is moving down the stack towards the * physical devices. */ -int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, - unsigned short type, - const void *daddr, const void *saddr, unsigned len) +static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, + unsigned short type, + const void *daddr, const void *saddr, + unsigned int len) { struct vlan_hdr *vhdr; unsigned short veth_TCI = 0; @@ -451,7 +452,7 @@ int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, return rc; } -int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) +static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct net_device_stats *stats = &dev->stats; struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); @@ -512,7 +513,8 @@ int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) return 0; } -int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) +static int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, + struct net_device *dev) { struct net_device_stats *stats = &dev->stats; unsigned short veth_TCI; @@ -536,7 +538,7 @@ int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev return 0; } -int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) +static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) { /* TODO: gotta make sure the underlying layer can handle it, * maybe an IFF_VLAN_CAPABLE flag for devices? @@ -626,7 +628,7 @@ void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result) *result = VLAN_DEV_INFO(dev)->vlan_id; } -int vlan_dev_open(struct net_device *dev) +static int vlan_dev_open(struct net_device *dev) { struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev); struct net_device *real_dev = vlan->real_dev; @@ -650,7 +652,7 @@ int vlan_dev_open(struct net_device *dev) return 0; } -int vlan_dev_stop(struct net_device *dev) +static int vlan_dev_stop(struct net_device *dev) { struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev; @@ -666,7 +668,7 @@ int vlan_dev_stop(struct net_device *dev) return 0; } -int vlan_set_mac_address(struct net_device *dev, void *p) +static int vlan_dev_set_mac_address(struct net_device *dev, void *p) { struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev; struct sockaddr *addr = p; @@ -692,7 +694,7 @@ out: return 0; } -int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev; struct ifreq ifrr; @@ -716,7 +718,7 @@ int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return err; } -void vlan_change_rx_flags(struct net_device *dev, int change) +static void vlan_dev_change_rx_flags(struct net_device *dev, int change) { struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev; @@ -726,8 +728,78 @@ void vlan_change_rx_flags(struct net_device *dev, int change) dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1); } -/** Taken from Gleb + Lennert's VLAN code, and modified... */ -void vlan_dev_set_multicast_list(struct net_device *vlan_dev) +static void vlan_dev_set_multicast_list(struct net_device *vlan_dev) { dev_mc_sync(VLAN_DEV_INFO(vlan_dev)->real_dev, vlan_dev); } + +/* + * vlan 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. + */ +static struct lock_class_key vlan_netdev_xmit_lock_key; + +static const struct header_ops vlan_header_ops = { + .create = vlan_dev_hard_header, + .rebuild = vlan_dev_rebuild_header, + .parse = eth_header_parse, +}; + +static int vlan_dev_init(struct net_device *dev) +{ + struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev; + int subclass = 0; + + /* IFF_BROADCAST|IFF_MULTICAST; ??? */ + dev->flags = real_dev->flags & ~IFF_UP; + dev->iflink = real_dev->ifindex; + dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) | + (1<<__LINK_STATE_DORMANT))) | + (1<<__LINK_STATE_PRESENT); + + /* ipv6 shared card related stuff */ + dev->dev_id = real_dev->dev_id; + + if (is_zero_ether_addr(dev->dev_addr)) + memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len); + if (is_zero_ether_addr(dev->broadcast)) + memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len); + + if (real_dev->features & NETIF_F_HW_VLAN_TX) { + dev->header_ops = real_dev->header_ops; + dev->hard_header_len = real_dev->hard_header_len; + dev->hard_start_xmit = vlan_dev_hwaccel_hard_start_xmit; + } else { + dev->header_ops = &vlan_header_ops; + dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; + dev->hard_start_xmit = vlan_dev_hard_start_xmit; + } + + if (real_dev->priv_flags & IFF_802_1Q_VLAN) + subclass = 1; + + lockdep_set_class_and_subclass(&dev->_xmit_lock, + &vlan_netdev_xmit_lock_key, subclass); + return 0; +} + +void vlan_setup(struct net_device *dev) +{ + ether_setup(dev); + + dev->priv_flags |= IFF_802_1Q_VLAN; + dev->tx_queue_len = 0; + + dev->change_mtu = vlan_dev_change_mtu; + dev->init = vlan_dev_init; + dev->open = vlan_dev_open; + dev->stop = vlan_dev_stop; + dev->set_mac_address = vlan_dev_set_mac_address; + dev->set_multicast_list = vlan_dev_set_multicast_list; + dev->change_rx_flags = vlan_dev_change_rx_flags; + dev->do_ioctl = vlan_dev_ioctl; + dev->destructor = free_netdev; + + memset(dev->broadcast, 0, ETH_ALEN); +} |
