/* Flags are defined in the vlan_dev_info class in include/linux/if_vlan.h file. */
int vlan_dev_set_vlan_flag(char *dev_name, __u32 flag, short flag_val)
{
struct net_device *dev = dev_get_by_name(dev_name);
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
/* verify flag is supported */
if (flag == 1) {
if (flag_val) {
VLAN_DEV_INFO(dev)->flags |= 1;
} else {
VLAN_DEV_INFO(dev)->flags &= ~1;
}
dev_put(dev);
return 0;
} else {
printk(KERN_ERR "%s: flag %i is not valid.\n",
__FUNCTION__, (int)(flag));
dev_put(dev);
return -EINVAL;
}
} else {
printk(KERN_ERR
"%s: %s is not a vlan device, priv_flags: %hX.\n",
__FUNCTION__, dev->name, dev->priv_flags);
dev_put(dev);
}
} else {
printk(KERN_ERR "%s: Could not find device: %s\n",
__FUNCTION__, dev_name);
}
return -EINVAL;
}
/*
* Delete directory entry for VLAN device.
*/
int vlan_proc_rem_dev(struct net_device *vlandev)
{
if (!vlandev) {
printk(VLAN_ERR "%s: invalid argument: %p\n",
__FUNCTION__, vlandev);
return -EINVAL;
}
if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
printk(VLAN_DBG "%s: invalid argument, device: %s is not a VLAN device, priv_flags: 0x%4hX.\n",
__FUNCTION__, vlandev->name, vlandev->priv_flags);
return -EINVAL;
}
#ifdef VLAN_DEBUG
printk(VLAN_DBG "%s: dev: %p\n", __FUNCTION__, vlandev);
#endif
/** NOTE: This will consume the memory pointed to by dent, it seems. */
if (VLAN_DEV_INFO(vlandev)->dent) {
remove_proc_entry(VLAN_DEV_INFO(vlandev)->dent->name, proc_vlan_dir);
VLAN_DEV_INFO(vlandev)->dent = NULL;
}
return 0;
}
int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct net_device_stats *stats = vlan_dev_get_stats(dev);
struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
/* Handle non-VLAN frames if they are sent to us, for example by DHCP.
*
* NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
* OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
*/
if (veth->h_vlan_proto != __constant_htons(ETH_P_8021Q)) {
int orig_headroom = skb_headroom(skb);
unsigned short veth_TCI;
/* This is not a VLAN frame...but we can fix that! */
VLAN_DEV_INFO(dev)->cnt_encap_on_xmit++;
#ifdef VLAN_DEBUG
printk(VLAN_DBG "%s: proto to encap: 0x%hx (hbo)\n",
__FUNCTION__, htons(veth->h_vlan_proto));
#endif
/* Construct the second two bytes. This field looks something
* like:
* usr_priority: 3 bits (high bits)
* CFI 1 bit
* VLAN ID 12 bits (low bits)
*/
veth_TCI = VLAN_DEV_INFO(dev)->vlan_id;
veth_TCI |= vlan_dev_get_egress_qos_mask(dev, skb);
skb = __vlan_put_tag(skb, veth_TCI);
if (!skb) {
stats->tx_dropped++;
return 0;
}
if (orig_headroom < VLAN_HLEN) {
VLAN_DEV_INFO(dev)->cnt_inc_headroom_on_tx++;
}
}
#ifdef VLAN_DEBUG
printk(VLAN_DBG "%s: about to send skb: %p to dev: %s\n",
__FUNCTION__, skb, skb->dev->name);
printk(VLAN_DBG " %2hx.%2hx.%2hx.%2xh.%2hx.%2hx %2hx.%2hx.%2hx.%2hx.%2hx.%2hx %4hx %4hx %4hx\n",
veth->h_dest[0], veth->h_dest[1], veth->h_dest[2], veth->h_dest[3], veth->h_dest[4], veth->h_dest[5],
veth->h_source[0], veth->h_source[1], veth->h_source[2], veth->h_source[3], veth->h_source[4], veth->h_source[5],
veth->h_vlan_proto, veth->h_vlan_TCI, veth->h_vlan_encapsulated_proto);
#endif
stats->tx_packets++; /* for statics only */
stats->tx_bytes += skb->len;
skb->dev = VLAN_DEV_INFO(dev)->real_dev;
dev_queue_xmit(skb);
return 0;
}
s32 netmode_br_transparent_rcv_finish(struct sk_buff *skb,
int (*okfn)(struct sk_buff *))
{
struct iphdr *iph;
u32 br_ip;
netmode_skb_header_revert(skb);
if(skb->protocol == ETH_P_PPP_SES)
{
skb_push(skb, skb->data - skb->mac.raw - 14);
skb_xmit(skb);
return NF_STOLEN;
}
if(ETH_P_IP != skb->protocol || 0 != br_get_ip(skb, &br_ip))
{
goto BR_CONTINUE;
}
if(0 == br_ip)
{
if(skb->dev->priv_flags & IFF_802_1Q_VLAN)
{
skb = conplat_vlan_skb_recv_put_tag(skb, VLAN_DEV_INFO(skb->dev)->vlan_id);
}
skb_xmit(skb);
return NF_STOLEN;
}
iph = skb->nh.iph;
if (likely(iph->saddr != br_ip && iph->daddr != br_ip
&& (u32)WEBAUTH_SERVER_ADDR_U32 != iph->saddr && (u32)WEBAUTH_SERVER_ADDR_U32 != iph->daddr) )
{
if ( skb->dev->priv_flags&IFF_802_1Q_VLAN )
{
skb = conplat_vlan_skb_recv_put_tag(skb, VLAN_DEV_INFO(skb->dev)->vlan_id);
}
skb_xmit(skb);
return NF_STOLEN;
}
BR_CONTINUE:
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,okfn,-349);
return NF_STOLEN;
}
/* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
int vlan_dev_set_vlan_flag(const struct net_device *dev,
u32 flag, short flag_val)
{
/* verify flag is supported */
if (flag == VLAN_FLAG_REORDER_HDR) {
if (flag_val) {
VLAN_DEV_INFO(dev)->flags |= VLAN_FLAG_REORDER_HDR;
} else {
VLAN_DEV_INFO(dev)->flags &= ~VLAN_FLAG_REORDER_HDR;
}
return 0;
}
printk(KERN_ERR "%s: flag %i is not valid.\n", __FUNCTION__, flag);
return -EINVAL;
}
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;
int err = -EOPNOTSUPP;
strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
ifrr.ifr_ifru = ifr->ifr_ifru;
switch(cmd) {
case SIOCGMIIPHY:
case SIOCGMIIREG:
case SIOCSMIIREG:
if (real_dev->do_ioctl && netif_device_present(real_dev))
err = real_dev->do_ioctl(real_dev, &ifrr, cmd);
break;
case SIOCETHTOOL:
err = dev_ethtool(&ifrr);
}
if (!err)
ifr->ifr_ifru = ifrr.ifr_ifru;
return err;
}
int vlan_dev_open(struct net_device *dev)
{
if (!(VLAN_DEV_INFO(dev)->real_dev->flags & IFF_UP))
return -ENETDOWN;
return 0;
}
int vlan_proc_add_dev (struct net_device *vlandev)
{
struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
printk(KERN_ERR
"ERROR: vlan_proc_add, device -:%s:- is NOT a VLAN\n",
vlandev->name);
return -EINVAL;
}
dev_info->dent = create_proc_entry(vlandev->name,
S_IFREG|S_IRUSR|S_IWUSR,
proc_vlan_dir);
if (!dev_info->dent)
return -ENOBUFS;
dev_info->dent->proc_fops = &vlandev_fops;
dev_info->dent->data = vlandev;
#ifdef VLAN_DEBUG
printk(KERN_ERR "vlan_proc_add, device -:%s:- being added.\n",
vlandev->name);
#endif
return 0;
}
int vlan_dev_get_vid(const char *dev_name, unsigned short* result)
{
struct net_device *dev = dev_get_by_name(dev_name);
int rv = 0;
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
*result = VLAN_DEV_INFO(dev)->vlan_id;
dev_put(dev);
rv = 0;
} else {
/*printk(KERN_ERR
"%s: %s is not a vlan device, priv_flags: %hX.\n",
__FUNCTION__, dev->name, dev->priv_flags);*/
dev_put(dev);
rv = -EINVAL;
}
} else {
/* printk(KERN_ERR "%s: Could not find device: %s\n",
__FUNCTION__, dev_name);*/
rv = -ENODEV;
}
return rv;
}
/* Cleanup all vlan devices
* Note: devices that have been registered that but not
* brought up will exist but have no module ref count.
*/
static void __exit vlan_cleanup_devices(void)
{
struct net_device *dev, *nxt;
rtnl_lock();
for (dev = dev_base; dev; dev = nxt) {
nxt = dev->next;
if (dev->priv_flags & IFF_802_1Q_VLAN) {
unregister_vlan_dev(VLAN_DEV_INFO(dev)->real_dev,
VLAN_DEV_INFO(dev)->vlan_id);
unregister_netdevice(dev);
}
}
rtnl_unlock();
}
static int vlandev_seq_show(struct seq_file *seq, void *offset)
{
struct net_device *vlandev = (struct net_device *) seq->private;
const struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
struct net_device_stats *stats;
static const char fmt[] = "%30s %12lu\n";
static const char fmt_bytes[] = "%30s %20llu\n";
static const char fmt_pkt[] = "%30s %16llu\n";
int i;
if (!(vlandev->priv_flags & IFF_802_1Q_VLAN))
return 0;
seq_printf(seq, "%s VID: %d REORDER_HDR: %i dev->priv_flags: %hx\n",
vlandev->name, dev_info->vlan_id,
(int)(dev_info->flags & 1), vlandev->priv_flags);
stats = vlan_dev_get_stats(vlandev);
seq_printf(seq, fmt_pkt, "total frames received", stats->rx_packets);
seq_printf(seq, fmt_bytes, "total bytes received", stats->rx_bytes);
seq_printf(seq, fmt, "Broadcast/Multicast Rcvd", stats->multicast);
seq_puts(seq, "\n");
seq_printf(seq, fmt_pkt, "total frames transmitted", stats->tx_packets);
seq_printf(seq, fmt_bytes, "total bytes transmitted", stats->tx_bytes);
seq_printf(seq, fmt, "total headroom inc",
dev_info->cnt_inc_headroom_on_tx);
seq_printf(seq, fmt, "total encap on xmit",
dev_info->cnt_encap_on_xmit);
seq_printf(seq, "Device: %s", dev_info->real_dev->name);
/* now show all PRIORITY mappings relating to this VLAN */
seq_printf(seq,
"\nINGRESS priority mappings: 0:%u 1:%u 2:%u 3:%u 4:%u 5:%u 6:%u 7:%u\n",
dev_info->ingress_priority_map[0],
dev_info->ingress_priority_map[1],
dev_info->ingress_priority_map[2],
dev_info->ingress_priority_map[3],
dev_info->ingress_priority_map[4],
dev_info->ingress_priority_map[5],
dev_info->ingress_priority_map[6],
dev_info->ingress_priority_map[7]);
seq_printf(seq, "EGRESSS priority Mappings: ");
for (i = 0; i < 16; i++) {
const struct vlan_priority_tci_mapping *mp
= dev_info->egress_priority_map[i];
while (mp) {
seq_printf(seq, "%u:%hu ",
mp->priority, ((mp->vlan_qos >> 13) & 0x7));
mp = mp->next;
}
}
seq_puts(seq, "\n");
return 0;
}
int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct net_device_stats *stats = vlan_dev_get_stats(dev);
struct vlan_skb_tx_cookie *cookie;
stats->tx_packets++;
stats->tx_bytes += skb->len;
skb->dev = VLAN_DEV_INFO(dev)->real_dev;
cookie = VLAN_TX_SKB_CB(skb);
cookie->magic = VLAN_TX_COOKIE_MAGIC;
cookie->vlan_tag = (VLAN_DEV_INFO(dev)->vlan_id |
vlan_dev_get_egress_qos_mask(dev, skb));
dev_queue_xmit(skb);
return 0;
}
void vlan_change_rx_flags(struct net_device *dev, int change)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
if (change & IFF_ALLMULTI)
dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
if (change & IFF_PROMISC)
dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
}
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?
*/
if (VLAN_DEV_INFO(dev)->real_dev->mtu < new_mtu)
return -ERANGE;
dev->mtu = new_mtu;
return 0;
}
static void vlan_flush_mc_list(struct net_device *dev)
{
struct dev_mc_list *dmi = dev->mc_list;
while (dmi) {
printk(KERN_DEBUG "%s: del %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address from vlan interface\n",
dev->name,
dmi->dmi_addr[0],
dmi->dmi_addr[1],
dmi->dmi_addr[2],
dmi->dmi_addr[3],
dmi->dmi_addr[4],
dmi->dmi_addr[5]);
dev_mc_delete(dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
dmi = dev->mc_list;
}
/* dev->mc_list is NULL by the time we get here. */
vlan_destroy_mc_list(VLAN_DEV_INFO(dev)->old_mc_list);
VLAN_DEV_INFO(dev)->old_mc_list = NULL;
}
void vlan_dev_set_ingress_priority(const struct net_device *dev,
u32 skb_prio, short vlan_prio)
{
struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
vlan->nr_ingress_mappings--;
else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
vlan->nr_ingress_mappings++;
vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
}
void vlan_dev_destruct(struct net_device *dev)
{
if (dev) {
vlan_flush_mc_list(dev);
if (dev->priv) {
if (VLAN_DEV_INFO(dev)->dent)
BUG();
kfree(dev->priv);
dev->priv = NULL;
}
}
}
static int unregister_vlan_device(const char *vlan_IF_name)
{
struct net_device *dev = NULL;
int ret;
dev = dev_get_by_name(vlan_IF_name);
ret = -EINVAL;
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
rtnl_lock();
ret = unregister_vlan_dev(VLAN_DEV_INFO(dev)->real_dev,
VLAN_DEV_INFO(dev)->vlan_id);
dev_put(dev);
unregister_netdevice(dev);
rtnl_unlock();
if (ret == 1)
ret = 0;
} else {
printk(VLAN_ERR
"%s: ERROR: Tried to remove a non-vlan device "
"with VLAN code, name: %s priv_flags: %hX\n",
__FUNCTION__, dev->name, dev->priv_flags);
dev_put(dev);
ret = -EPERM;
}
} else {
#ifdef VLAN_DEBUG
printk(VLAN_DBG "%s: WARNING: Could not find dev.\n", __FUNCTION__);
#endif
ret = -EINVAL;
}
return ret;
}
int vlan_dev_set_egress_priority(char *dev_name, __u32 skb_prio, short vlan_prio)
{
struct net_device *dev = dev_get_by_name(dev_name);
struct vlan_priority_tci_mapping *mp = NULL;
struct vlan_priority_tci_mapping *np;
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
/* See if a priority mapping exists.. */
mp = VLAN_DEV_INFO(dev)->egress_priority_map[skb_prio & 0xF];
while (mp) {
if (mp->priority == skb_prio) {
mp->vlan_qos = ((vlan_prio << 13) & 0xE000);
dev_put(dev);
return 0;
}
mp = mp->next;
}
/* Create a new mapping then. */
mp = VLAN_DEV_INFO(dev)->egress_priority_map[skb_prio & 0xF];
np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
if (np) {
np->next = mp;
np->priority = skb_prio;
np->vlan_qos = ((vlan_prio << 13) & 0xE000);
VLAN_DEV_INFO(dev)->egress_priority_map[skb_prio & 0xF] = np;
dev_put(dev);
return 0;
} else {
dev_put(dev);
return -ENOBUFS;
}
}
dev_put(dev);
}
return -EINVAL;
}
static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb)
{
if (VLAN_DEV_INFO(skb->dev)->flags & 1) {
skb = skb_share_check(skb, GFP_ATOMIC);
if (skb) {
/* Lifted from Gleb's VLAN code... */
memmove(skb->data - ETH_HLEN,
skb->data - VLAN_ETH_HLEN, 12);
skb->mac.raw += VLAN_HLEN;
}
}
return skb;
}
int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct net_device_stats *stats = vlan_dev_get_stats(dev);
unsigned short veth_TCI;
/* Construct the second two bytes. This field looks something
* like:
* usr_priority: 3 bits (high bits)
* CFI 1 bit
* VLAN ID 12 bits (low bits)
*/
veth_TCI = VLAN_DEV_INFO(dev)->vlan_id;
veth_TCI |= vlan_dev_get_egress_qos_mask(dev, skb);
skb = __vlan_hwaccel_put_tag(skb, veth_TCI);
stats->tx_packets++;
stats->tx_bytes += skb->len;
skb->dev = VLAN_DEV_INFO(dev)->real_dev;
dev_queue_xmit(skb);
return 0;
}
int vlan_dev_stop(struct net_device *dev)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
dev_mc_unsync(real_dev, dev);
if (dev->flags & IFF_ALLMULTI)
dev_set_allmulti(real_dev, -1);
if (dev->flags & IFF_PROMISC)
dev_set_promiscuity(real_dev, -1);
if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
dev_unicast_delete(real_dev, dev->dev_addr, dev->addr_len);
return 0;
}
int vlan_dev_set_ingress_priority(char *dev_name, __u32 skb_prio, short vlan_prio)
{
struct net_device *dev = dev_get_by_name(dev_name);
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
/* see if a priority mapping exists.. */
VLAN_DEV_INFO(dev)->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
dev_put(dev);
return 0;
}
dev_put(dev);
}
return -EINVAL;
}
static inline unsigned short vlan_dev_get_egress_qos_mask(struct net_device* dev,
struct sk_buff* skb)
{
struct vlan_priority_tci_mapping *mp =
VLAN_DEV_INFO(dev)->egress_priority_map[(skb->priority & 0xF)];
while (mp) {
if (mp->priority == skb->priority) {
return mp->vlan_qos; /* This should already be shifted to mask
* correctly with the VLAN's TCI
*/
}
mp = mp->next;
}
return 0;
}
int vlan_dev_get_vid(const char *dev_name, unsigned short* result)
{
struct net_device *dev = dev_get_by_name(dev_name);
int rv = 0;
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
*result = VLAN_DEV_INFO(dev)->vlan_id;
rv = 0;
} else {
rv = -EINVAL;
}
dev_put(dev);
} else {
rv = -ENODEV;
}
return rv;
}
int vlan_dev_get_realdev_name(const char *dev_name, char* result)
{
struct net_device *dev = dev_get_by_name(dev_name);
int rv = 0;
if (dev) {
if (dev->priv_flags & IFF_802_1Q_VLAN) {
strncpy(result, VLAN_DEV_INFO(dev)->real_dev->name, 23);
rv = 0;
} else {
rv = -EINVAL;
}
dev_put(dev);
} else {
rv = -ENODEV;
}
return rv;
}
static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb)
{
if (VLAN_DEV_INFO(skb->dev)->flags & 1) {
if (skb_shared(skb) || skb_cloned(skb)) {
struct sk_buff *nskb = skb_copy(skb, GFP_ATOMIC);
kfree_skb(skb);
skb = nskb;
}
if (skb) {
/* Lifted from Gleb's VLAN code... */
memmove(skb->data - ETH_HLEN,
skb->data - VLAN_ETH_HLEN, 12);
skb->mac_header += VLAN_HLEN;
}
}
return skb;
}
static int vlan_dev_init(struct net_device *dev)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
/* 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);
/* TODO: maybe just assign it to be ETHERNET? */
dev->type = real_dev->type;
#if defined (CONFIG_RAETH_TSO)
#if defined(CONFIG_RALINK_MT7620)
if( (*(volatile u32 *)(0xB000000C) & 0xf) >= 0x5) {
dev->features = real_dev->features;
}
#else
/* make pseudo interface has same capacity like real interface */
dev->features = real_dev->features;
#endif
#endif
memcpy(dev->broadcast, real_dev->broadcast, real_dev->addr_len);
memcpy(dev->dev_addr, real_dev->dev_addr, real_dev->addr_len);
dev->addr_len = real_dev->addr_len;
if (real_dev->features & NETIF_F_HW_VLAN_TX) {
dev->hard_header = real_dev->hard_header;
dev->hard_header_len = real_dev->hard_header_len;
dev->hard_start_xmit = vlan_dev_hwaccel_hard_start_xmit;
dev->rebuild_header = real_dev->rebuild_header;
} else {
dev->hard_header = vlan_dev_hard_header;
dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
dev->hard_start_xmit = vlan_dev_hard_start_xmit;
dev->rebuild_header = vlan_dev_rebuild_header;
}
dev->hard_header_parse = real_dev->hard_header_parse;
lockdep_set_class(&dev->_xmit_lock, &vlan_netdev_xmit_lock_key);
return 0;
}
struct l2t_entry *t3_l2t_get(struct t3cdev *cdev, struct neighbour *neigh,
struct net_device *dev)
{
struct l2t_entry *e;
struct l2t_data *d = L2DATA(cdev);
u32 addr = *(u32 *) neigh->primary_key;
int ifidx = neigh->dev->ifindex;
int hash = arp_hash(addr, ifidx, d);
struct port_info *p = netdev_priv(dev);
int smt_idx = p->port_id;
write_lock_bh(&d->lock);
for (e = d->l2tab[hash].first; e; e = e->next)
if (e->addr == addr && e->ifindex == ifidx &&
e->smt_idx == smt_idx) {
l2t_hold(d, e);
if (atomic_read(&e->refcnt) == 1)
reuse_entry(e, neigh);
goto done;
}
/* Need to allocate a new entry */
e = alloc_l2e(d);
if (e) {
spin_lock(&e->lock); /* avoid race with t3_l2t_free */
e->next = d->l2tab[hash].first;
d->l2tab[hash].first = e;
e->state = L2T_STATE_RESOLVING;
e->addr = addr;
e->ifindex = ifidx;
e->smt_idx = smt_idx;
atomic_set(&e->refcnt, 1);
neigh_replace(e, neigh);
if (neigh->dev->priv_flags & IFF_802_1Q_VLAN)
e->vlan = VLAN_DEV_INFO(neigh->dev)->vlan_id;
else
e->vlan = VLAN_NONE;
spin_unlock(&e->lock);
}
done:
write_unlock_bh(&d->lock);
return e;
}
static int vlan_seq_show(struct seq_file *seq, void *v)
{
if (v == SEQ_START_TOKEN) {
const char *nmtype = NULL;
seq_puts(seq, "VLAN Dev name | VLAN ID\n");
if (vlan_name_type < ARRAY_SIZE(vlan_name_type_str))
nmtype = vlan_name_type_str[vlan_name_type];
seq_printf(seq, "Name-Type: %s\n",
nmtype ? nmtype : "UNKNOWN" );
} else {
const struct net_device *vlandev = v;
const struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
seq_printf(seq, "%-15s| %d | %s\n", vlandev->name,
dev_info->vlan_id, dev_info->real_dev->name);
}
return 0;
}
