static struct inet6_dev * ipv6_add_dev(struct device *dev)
{
struct inet6_dev *ndev, **bptr, *iter;
int hash;
if (dev->mtu < IPV6_MIN_MTU)
return NULL;
ndev = kmalloc(sizeof(struct inet6_dev), GFP_KERNEL);
if (ndev) {
char name[64];
memset(ndev, 0, sizeof(struct inet6_dev));
ndev->dev = dev;
memcpy(&ndev->cnf, &ipv6_devconf_dflt, sizeof(ndev->cnf));
ndev->cnf.mtu6 = dev->mtu;
ndev->cnf.sysctl = NULL;
ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
if (ndev->nd_parms == NULL) {
kfree(ndev);
return NULL;
}
ipv6_statistics.Ip6LastChange = timeticks(jiffies);
ndev->stats.ipv6.Ip6LastChange = timeticks(jiffies);
#ifdef CONFIG_PROC_FS
sprintf(name, "%d", dev->ifindex);
ndev->stats.proc_dir_entry = create_proc_entry(name, 0, proc_net_devsnmp6);
if (!ndev->stats.proc_dir_entry)
printk(KERN_WARNING
"addrconf_notify(): cannot create /proc/net/dev_snmp6/%s\n",name);
ndev->stats.proc_dir_entry->read_proc = afinet6_read_devsnmp;
ndev->stats.proc_dir_entry->data = ndev;
#endif
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6");
addrconf_sysctl_register(ndev, &ndev->cnf);
#endif
hash = ipv6_devindex_hash(dev->ifindex);
bptr = &inet6_dev_lst[hash];
iter = *bptr;
for (; iter; iter = iter->next)
bptr = &iter->next;
*bptr = ndev;
}
return ndev;
}
static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
{
struct inet6_dev *ndev;
ASSERT_RTNL();
if (dev->mtu < IPV6_MIN_MTU)
return NULL;
ndev = kmalloc(sizeof(struct inet6_dev), GFP_KERNEL);
if (ndev) {
memset(ndev, 0, sizeof(struct inet6_dev));
ndev->lock = RW_LOCK_UNLOCKED;
ndev->dev = dev;
memcpy(&ndev->cnf, &ipv6_devconf_dflt, sizeof(ndev->cnf));
ndev->cnf.mtu6 = dev->mtu;
ndev->cnf.sysctl = NULL;
ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
if (ndev->nd_parms == NULL) {
kfree(ndev);
return NULL;
}
inet6_dev_count++;
/* We refer to the device */
dev_hold(dev);
write_lock_bh(&addrconf_lock);
dev->ip6_ptr = ndev;
/* One reference from device */
in6_dev_hold(ndev);
write_unlock_bh(&addrconf_lock);
ipv6_mc_init_dev(ndev);
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6");
addrconf_sysctl_register(ndev, &ndev->cnf);
#endif
}
return ndev;
}
struct in_device *inetdev_init(struct net_device *dev)
{
struct in_device *in_dev;
ASSERT_RTNL();
in_dev = kmalloc(sizeof(*in_dev), GFP_KERNEL);
if (!in_dev)
goto out;
memset(in_dev, 0, sizeof(*in_dev));
INIT_RCU_HEAD(&in_dev->rcu_head);
memcpy(&in_dev->cnf, &ipv4_devconf_dflt, sizeof(in_dev->cnf));
in_dev->cnf.sysctl = NULL;
in_dev->dev = dev;
if ((in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl)) == NULL)
goto out_kfree;
/* Reference in_dev->dev */
dev_hold(dev);
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(dev, in_dev->arp_parms, NET_IPV4,
NET_IPV4_NEIGH, "ipv4", NULL);
#endif
/* Account for reference dev->ip_ptr (below) */
in_dev_hold(in_dev);
#ifdef CONFIG_SYSCTL
devinet_sysctl_register(in_dev, &in_dev->cnf);
#endif
ip_mc_init_dev(in_dev);
if (dev->flags & IFF_UP)
ip_mc_up(in_dev);
out:
/* we can receive as soon as ip_ptr is set -- do this last */
smp_wmb();
dev->ip_ptr = in_dev;
return in_dev;
out_kfree:
kfree(in_dev);
in_dev = NULL;
goto out;
}
struct in_device *inetdev_init(struct net_device *dev)
{
struct in_device *in_dev;
ASSERT_RTNL();
in_dev = kmalloc(sizeof(*in_dev), GFP_KERNEL);
if (!in_dev)
goto out;
memset(in_dev, 0, sizeof(*in_dev));
in_dev->lock = RW_LOCK_UNLOCKED;
memcpy(&in_dev->cnf, &ipv4_devconf_dflt, sizeof(in_dev->cnf));
in_dev->cnf.sysctl = NULL;
in_dev->dev = dev;
if ((in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl)) == NULL)
goto out_kfree;
inet_dev_count++;
/* Reference in_dev->dev */
dev_hold(dev);
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(dev, in_dev->arp_parms, NET_IPV4,
NET_IPV4_NEIGH, "ipv4", NULL);
#endif
write_lock_bh(&inetdev_lock);
dev->ip_ptr = in_dev;
/* Account for reference dev->ip_ptr */
in_dev_hold(in_dev);
write_unlock_bh(&inetdev_lock);
#ifdef CONFIG_SYSCTL
devinet_sysctl_register(in_dev, &in_dev->cnf);
#endif
ip_mc_init_dev(in_dev);
if (dev->flags & IFF_UP)
ip_mc_up(in_dev);
out:
return in_dev;
out_kfree:
kfree(in_dev);
in_dev = NULL;
goto out;
}
static struct inet6_dev * ipv6_add_dev(struct device *dev)
{
struct inet6_dev *ndev, **bptr, *iter;
int hash;
if (dev->mtu < IPV6_MIN_MTU)
return NULL;
ndev = kmalloc(sizeof(struct inet6_dev), gfp_any());
if (ndev) {
memset(ndev, 0, sizeof(struct inet6_dev));
ndev->dev = dev;
memcpy(&ndev->cnf, &ipv6_devconf_dflt, sizeof(ndev->cnf));
ndev->cnf.mtu6 = dev->mtu;
ndev->cnf.sysctl = NULL;
ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
if (ndev->nd_parms == NULL) {
kfree(ndev);
return NULL;
}
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6");
addrconf_sysctl_register(ndev, &ndev->cnf);
#endif
hash = ipv6_devindex_hash(dev->ifindex);
bptr = &inet6_dev_lst[hash];
iter = *bptr;
for (; iter; iter = iter->next)
bptr = &iter->next;
*bptr = ndev;
}
return ndev;
}
