if (ifp->flags & IFA_F_OPTIMISTIC)
addr_flags |= IFA_F_OPTIMISTIC;
- ift = !max_addresses ||
- ipv6_count_addresses(idev) < max_addresses ?
- ipv6_add_addr(idev, &addr, NULL, tmp_plen,
- ipv6_addr_scope(&addr), addr_flags,
- tmp_valid_lft, tmp_prefered_lft) : NULL;
- if (IS_ERR_OR_NULL(ift)) {
+ ift = ipv6_add_addr(idev, &addr, NULL, tmp_plen,
+ ipv6_addr_scope(&addr), addr_flags,
+ tmp_valid_lft, tmp_prefered_lft);
+ if (IS_ERR(ift)) {
in6_ifa_put(ifp);
in6_dev_put(idev);
pr_info("%s: retry temporary address regeneration\n", __func__);
return __ipv6_isatap_ifid(eui, *(__be32 *)dev->dev_addr);
}
+static int addrconf_ifid_ip6tnl(u8 *eui, struct net_device *dev)
+{
+ memcpy(eui, dev->perm_addr, 3);
+ memcpy(eui + 5, dev->perm_addr + 3, 3);
+ eui[3] = 0xFF;
+ eui[4] = 0xFE;
+ eui[0] ^= 2;
+ return 0;
+}
+
static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
{
switch (dev->type) {
return addrconf_ifid_eui64(eui, dev);
case ARPHRD_IEEE1394:
return addrconf_ifid_ieee1394(eui, dev);
+ case ARPHRD_TUNNEL6:
+ return addrconf_ifid_ip6tnl(eui, dev);
}
return -1;
}
(dev->type != ARPHRD_ARCNET) &&
(dev->type != ARPHRD_INFINIBAND) &&
(dev->type != ARPHRD_IEEE802154) &&
- (dev->type != ARPHRD_IEEE1394)) {
+ (dev->type != ARPHRD_IEEE1394) &&
+ (dev->type != ARPHRD_TUNNEL6)) {
/* Alas, we support only Ethernet autoconfiguration. */
return;
}
return -1;
}
-static void ip6_tnl_add_linklocal(struct inet6_dev *idev)
-{
- struct net_device *link_dev;
- struct net *net = dev_net(idev->dev);
-
- /* first try to inherit the link-local address from the link device */
- if (idev->dev->iflink &&
- (link_dev = __dev_get_by_index(net, idev->dev->iflink))) {
- if (!ipv6_inherit_linklocal(idev, link_dev))
- return;
- }
- /* then try to inherit it from any device */
- for_each_netdev(net, link_dev) {
- if (!ipv6_inherit_linklocal(idev, link_dev))
- return;
- }
- pr_debug("init ip6-ip6: add_linklocal failed\n");
-}
-
-/*
- * Autoconfigure tunnel with a link-local address so routing protocols,
- * DHCPv6, MLD etc. can be run over the virtual link
- */
-
-static void addrconf_ip6_tnl_config(struct net_device *dev)
-{
- struct inet6_dev *idev;
-
- ASSERT_RTNL();
-
- idev = addrconf_add_dev(dev);
- if (IS_ERR(idev)) {
- pr_debug("init ip6-ip6: add_dev failed\n");
- return;
- }
- ip6_tnl_add_linklocal(idev);
-}
-
static int addrconf_notify(struct notifier_block *this, unsigned long event,
void *ptr)
{
addrconf_gre_config(dev);
break;
#endif
- case ARPHRD_TUNNEL6:
- addrconf_ip6_tnl_config(dev);
- break;
case ARPHRD_LOOPBACK:
init_loopback(dev);
break;