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ipv6: Don't add routes to ipv6 disabled interfaces.

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If the interface has IPv6 disabled, don't add a multicast or
link-local route since we won't be adding a link-local address.

Reported-by: Mahesh Kelkar <maheshkelkar@gmail.com>
Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brian Haley 2010-07-20 10:34:30 +00:00 committed by David S. Miller
parent be2b6e6235
commit 64e724f62a
1 changed files with 9 additions and 5 deletions
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14
net/ipv6/addrconf.c
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@ -1760,7 +1760,10 @@ static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
idev = ipv6_find_idev(dev);
if (!idev)
return NULL;
return ERR_PTR(-ENOBUFS);
if (idev->cnf.disable_ipv6)
return ERR_PTR(-EACCES);
/* Add default multicast route */
addrconf_add_mroute(dev);
@ -2129,8 +2132,9 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
if (!dev)
return -ENODEV;
if ((idev = addrconf_add_dev(dev)) == NULL)
return -ENOBUFS;
idev = addrconf_add_dev(dev);
if (IS_ERR(idev))
return PTR_ERR(idev);
scope = ipv6_addr_scope(pfx);
@ -2377,7 +2381,7 @@ static void addrconf_dev_config(struct net_device *dev)
}
idev = addrconf_add_dev(dev);
if (idev == NULL)
if (IS_ERR(idev))
return;
memset(&addr, 0, sizeof(struct in6_addr));
@ -2468,7 +2472,7 @@ static void addrconf_ip6_tnl_config(struct net_device *dev)
ASSERT_RTNL();
idev = addrconf_add_dev(dev);
if (!idev) {
if (IS_ERR(idev)) {
printk(KERN_DEBUG "init ip6-ip6: add_dev failed\n");
return;
}