* Ville Nuorvala <vnuorval@tcs.hut.fi>
* Yasuyuki Kozakai <kozakai@linux-ipv6.org>
*
- * $Id$
- *
* Based on:
* linux/net/ipv6/sit.c and linux/net/ipv4/ipip.c
*
struct ip6_tnl_net {
/* the IPv6 tunnel fallback device */
struct net_device *fb_tnl_dev;
+ /* lists for storing tunnels in use */
+ struct ip6_tnl *tnls_r_l[HASH_SIZE];
+ struct ip6_tnl *tnls_wc[1];
+ struct ip6_tnl **tnls[2];
};
-/* lists for storing tunnels in use */
-static struct ip6_tnl *tnls_r_l[HASH_SIZE];
-static struct ip6_tnl *tnls_wc[1];
-static struct ip6_tnl **tnls[2] = { tnls_wc, tnls_r_l };
-
/* lock for the tunnel lists */
static DEFINE_RWLOCK(ip6_tnl_lock);
unsigned h0 = HASH(remote);
unsigned h1 = HASH(local);
struct ip6_tnl *t;
+ struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
- for (t = tnls_r_l[h0 ^ h1]; t; t = t->next) {
+ for (t = ip6n->tnls_r_l[h0 ^ h1]; t; t = t->next) {
if (ipv6_addr_equal(local, &t->parms.laddr) &&
ipv6_addr_equal(remote, &t->parms.raddr) &&
(t->dev->flags & IFF_UP))
return t;
}
- if ((t = tnls_wc[0]) != NULL && (t->dev->flags & IFF_UP))
+ if ((t = ip6n->tnls_wc[0]) != NULL && (t->dev->flags & IFF_UP))
return t;
return NULL;
prio = 1;
h = HASH(remote) ^ HASH(local);
}
- return &tnls[prio][h];
+ return &ip6n->tnls[prio][h];
}
/**
if (dev == NULL)
goto failed;
+ dev_net_set(dev, net);
+
if (strchr(name, '%')) {
if (dev_alloc_name(dev, name) < 0)
goto failed_free;
if (dev == ip6n->fb_tnl_dev) {
write_lock_bh(&ip6_tnl_lock);
- tnls_wc[0] = NULL;
+ ip6n->tnls_wc[0] = NULL;
write_unlock_bh(&ip6_tnl_lock);
} else {
ip6_tnl_unlink(ip6n, t);
fl.fl4_dst = eiph->saddr;
fl.fl4_tos = RT_TOS(eiph->tos);
fl.proto = IPPROTO_IPIP;
- if (ip_route_output_key(&init_net, &rt, &fl))
+ if (ip_route_output_key(dev_net(skb->dev), &rt, &fl))
goto out;
skb2->dev = rt->u.dst.dev;
fl.fl4_dst = eiph->daddr;
fl.fl4_src = eiph->saddr;
fl.fl4_tos = eiph->tos;
- if (ip_route_output_key(&init_net, &rt, &fl) ||
+ if (ip_route_output_key(dev_net(skb->dev), &rt, &fl) ||
rt->u.dst.dev->type != ARPHRD_TUNNEL) {
ip_rt_put(rt);
goto out;
skb_reset_network_header(skb2);
/* Try to guess incoming interface */
- rt = rt6_lookup(&init_net, &ipv6_hdr(skb2)->saddr, NULL, 0, 0);
+ rt = rt6_lookup(dev_net(skb->dev), &ipv6_hdr(skb2)->saddr,
+ NULL, 0, 0);
if (rt && rt->rt6i_dev)
skb2->dev = rt->rt6i_dev;
{
struct ip6_tnl_parm *p = &t->parms;
int ret = 0;
+ struct net *net = dev_net(t->dev);
if (p->flags & IP6_TNL_F_CAP_RCV) {
struct net_device *ldev = NULL;
if (p->link)
- ldev = dev_get_by_index(&init_net, p->link);
+ ldev = dev_get_by_index(net, p->link);
if ((ipv6_addr_is_multicast(&p->laddr) ||
- likely(ipv6_chk_addr(&init_net, &p->laddr, ldev, 0))) &&
- likely(!ipv6_chk_addr(&init_net, &p->raddr, NULL, 0)))
+ likely(ipv6_chk_addr(net, &p->laddr, ldev, 0))) &&
+ likely(!ipv6_chk_addr(net, &p->raddr, NULL, 0)))
ret = 1;
if (ldev)
}
if (!ip6_tnl_rcv_ctl(t)) {
- t->stat.rx_dropped++;
+ t->dev->stats.rx_dropped++;
read_unlock(&ip6_tnl_lock);
goto discard;
}
dscp_ecn_decapsulate(t, ipv6h, skb);
- t->stat.rx_packets++;
- t->stat.rx_bytes += skb->len;
+ t->dev->stats.rx_packets++;
+ t->dev->stats.rx_bytes += skb->len;
netif_rx(skb);
read_unlock(&ip6_tnl_lock);
return 0;
{
struct ip6_tnl_parm *p = &t->parms;
int ret = 0;
+ struct net *net = dev_net(t->dev);
if (p->flags & IP6_TNL_F_CAP_XMIT) {
struct net_device *ldev = NULL;
if (p->link)
- ldev = dev_get_by_index(&init_net, p->link);
+ ldev = dev_get_by_index(net, p->link);
- if (unlikely(!ipv6_chk_addr(&init_net, &p->laddr, ldev, 0)))
+ if (unlikely(!ipv6_chk_addr(net, &p->laddr, ldev, 0)))
printk(KERN_WARNING
"%s xmit: Local address not yet configured!\n",
p->name);
else if (!ipv6_addr_is_multicast(&p->raddr) &&
- unlikely(ipv6_chk_addr(&init_net, &p->raddr, NULL, 0)))
+ unlikely(ipv6_chk_addr(net, &p->raddr, NULL, 0)))
printk(KERN_WARNING
"%s xmit: Routing loop! "
"Remote address found on this node!\n",
__u32 *pmtu)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct net_device_stats *stats = &t->stat;
+ struct net_device_stats *stats = &t->dev->stats;
struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct ipv6_tel_txoption opt;
struct dst_entry *dst;
if ((dst = ip6_tnl_dst_check(t)) != NULL)
dst_hold(dst);
else {
- dst = ip6_route_output(&init_net, NULL, fl);
+ dst = ip6_route_output(dev_net(dev), NULL, fl);
if (dst->error || xfrm_lookup(&dst, fl, NULL, 0) < 0)
goto tx_err_link_failure;
ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct net_device_stats *stats = &t->stat;
+ struct net_device_stats *stats = &t->dev->stats;
int ret;
if (t->recursion++) {
- t->stat.collisions++;
+ stats->collisions++;
goto tx_err;
}
switch (skb->protocol) {
- case __constant_htons(ETH_P_IP):
+ case htons(ETH_P_IP):
ret = ip4ip6_tnl_xmit(skb, dev);
break;
- case __constant_htons(ETH_P_IPV6):
+ case htons(ETH_P_IPV6):
ret = ip6ip6_tnl_xmit(skb, dev);
break;
default:
int strict = (ipv6_addr_type(&p->raddr) &
(IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL));
- struct rt6_info *rt = rt6_lookup(&init_net, &p->raddr, &p->laddr,
+ struct rt6_info *rt = rt6_lookup(dev_net(dev),
+ &p->raddr, &p->laddr,
p->link, strict);
if (rt == NULL)
}
/**
- * ip6_tnl_get_stats - return the stats for tunnel device
- * @dev: virtual device associated with tunnel
- *
- * Return: stats for device
- **/
-
-static struct net_device_stats *
-ip6_tnl_get_stats(struct net_device *dev)
-{
- return &(((struct ip6_tnl *)netdev_priv(dev))->stat);
-}
-
-/**
* ip6_tnl_change_mtu - change mtu manually for tunnel device
* @dev: virtual device associated with tunnel
* @new_mtu: the new mtu
dev->uninit = ip6_tnl_dev_uninit;
dev->destructor = free_netdev;
dev->hard_start_xmit = ip6_tnl_xmit;
- dev->get_stats = ip6_tnl_get_stats;
dev->do_ioctl = ip6_tnl_ioctl;
dev->change_mtu = ip6_tnl_change_mtu;
dev->mtu = ETH_DATA_LEN - sizeof (struct ipv6hdr);
dev->flags |= IFF_NOARP;
dev->addr_len = sizeof(struct in6_addr);
+ dev->features |= NETIF_F_NETNS_LOCAL;
}
ip6_fb_tnl_dev_init(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
+ struct net *net = dev_net(dev);
+ struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
+
ip6_tnl_dev_init_gen(dev);
t->parms.proto = IPPROTO_IPV6;
dev_hold(dev);
- tnls_wc[0] = t;
+ ip6n->tnls_wc[0] = t;
return 0;
}
.priority = 1,
};
+static void ip6_tnl_destroy_tunnels(struct ip6_tnl_net *ip6n)
+{
+ int h;
+ struct ip6_tnl *t;
+
+ for (h = 0; h < HASH_SIZE; h++) {
+ while ((t = ip6n->tnls_r_l[h]) != NULL)
+ unregister_netdevice(t->dev);
+ }
+
+ t = ip6n->tnls_wc[0];
+ unregister_netdevice(t->dev);
+}
+
static int ip6_tnl_init_net(struct net *net)
{
int err;
struct ip6_tnl_net *ip6n;
err = -ENOMEM;
- ip6n = kmalloc(sizeof(struct ip6_tnl_net), GFP_KERNEL);
+ ip6n = kzalloc(sizeof(struct ip6_tnl_net), GFP_KERNEL);
if (ip6n == NULL)
goto err_alloc;
if (err < 0)
goto err_assign;
+ ip6n->tnls[0] = ip6n->tnls_wc;
+ ip6n->tnls[1] = ip6n->tnls_r_l;
+
err = -ENOMEM;
ip6n->fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
ip6_tnl_dev_setup);
struct ip6_tnl_net *ip6n;
ip6n = net_generic(net, ip6_tnl_net_id);
+ rtnl_lock();
+ ip6_tnl_destroy_tunnels(ip6n);
+ rtnl_unlock();
kfree(ip6n);
}
return err;
}
-static void __exit ip6_tnl_destroy_tunnels(void)
-{
- int h;
- struct ip6_tnl *t;
-
- for (h = 0; h < HASH_SIZE; h++) {
- while ((t = tnls_r_l[h]) != NULL)
- unregister_netdevice(t->dev);
- }
-
- t = tnls_wc[0];
- unregister_netdevice(t->dev);
-}
-
/**
* ip6_tunnel_cleanup - free resources and unregister protocol
**/
if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
printk(KERN_INFO "ip6_tunnel close: can't deregister ip6ip6\n");
- rtnl_lock();
- ip6_tnl_destroy_tunnels();
- rtnl_unlock();
-
unregister_pernet_gen_device(ip6_tnl_net_id, &ip6_tnl_net_ops);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff