*/
in6_dev_hold(ndev);
+#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+ if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) {
+ printk(KERN_INFO
+ "%s: Disabled Multicast RS\n",
+ dev->name);
+ ndev->cnf.rtr_solicits = 0;
+ }
+#endif
+
#ifdef CONFIG_IPV6_PRIVACY
setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev);
if ((dev->flags&IFF_LOOPBACK) ||
dev->type == ARPHRD_TUNNEL ||
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+ dev->type == ARPHRD_TUNNEL6 ||
dev->type == ARPHRD_SIT ||
-#endif
dev->type == ARPHRD_NONE) {
printk(KERN_INFO
"%s: Disabled Privacy Extensions\n",
dev->name);
ndev->cnf.use_tempaddr = -1;
-
- if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) {
- printk(KERN_INFO
- "%s: Disabled Multicast RS\n",
- dev->name);
- ndev->cnf.rtr_solicits = 0;
- }
} else {
in6_dev_hold(ndev);
ipv6_regen_rndid((unsigned long) ndev);
return ndev;
}
-struct inet6_dev * ipv6_find_idev(struct net_device *dev)
+static struct inet6_dev * ipv6_find_idev(struct net_device *dev)
{
struct inet6_dev *idev;
* 2) Configure prefixes with the auto flag set
*/
- /* Avoid arithmetic overflow. Really, we could
- save rt_expires in seconds, likely valid_lft,
- but it would require division in fib gc, that it
- not good.
- */
- if (valid_lft >= 0x7FFFFFFF/HZ)
+ if (valid_lft == INFINITY_LIFE_TIME)
+ rt_expires = ~0UL;
+ else if (valid_lft >= 0x7FFFFFFF/HZ) {
+ /* Avoid arithmetic overflow. Really, we could
+ * save rt_expires in seconds, likely valid_lft,
+ * but it would require division in fib gc, that it
+ * not good.
+ */
rt_expires = 0x7FFFFFFF - (0x7FFFFFFF % HZ);
- else
+ } else
rt_expires = valid_lft * HZ;
/*
* Avoid arithmetic overflow there as well.
* Overflow can happen only if HZ < USER_HZ.
*/
- if (HZ < USER_HZ && rt_expires > 0x7FFFFFFF / USER_HZ)
+ if (HZ < USER_HZ && ~rt_expires && rt_expires > 0x7FFFFFFF / USER_HZ)
rt_expires = 0x7FFFFFFF / USER_HZ;
if (pinfo->onlink) {
dev->ifindex, 1);
if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
- if (rt->rt6i_flags&RTF_EXPIRES) {
- if (valid_lft == 0) {
- ip6_del_rt(rt);
- rt = NULL;
- } else {
- rt->rt6i_expires = jiffies + rt_expires;
- }
+ /* Autoconf prefix route */
+ if (valid_lft == 0) {
+ ip6_del_rt(rt);
+ rt = NULL;
+ } else if (~rt_expires) {
+ /* not infinity */
+ rt->rt6i_expires = jiffies + rt_expires;
+ rt->rt6i_flags |= RTF_EXPIRES;
+ } else {
+ rt->rt6i_flags &= ~RTF_EXPIRES;
+ rt->rt6i_expires = 0;
}
} else if (valid_lft) {
+ int flags = RTF_ADDRCONF | RTF_PREFIX_RT;
+ clock_t expires = 0;
+ if (~rt_expires) {
+ /* not infinity */
+ flags |= RTF_EXPIRES;
+ expires = jiffies_to_clock_t(rt_expires);
+ }
addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
- dev, jiffies_to_clock_t(rt_expires), RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
+ dev, expires, flags);
}
if (rt)
dst_release(&rt->u.dst);
struct inet6_dev *idev;
struct net_device *dev;
int scope;
- u32 flags = RTF_EXPIRES;
+ u32 flags;
+ clock_t expires;
ASSERT_RTNL();
if (valid_lft == INFINITY_LIFE_TIME) {
ifa_flags |= IFA_F_PERMANENT;
flags = 0;
- } else if (valid_lft >= 0x7FFFFFFF/HZ)
- valid_lft = 0x7FFFFFFF/HZ;
+ expires = 0;
+ } else {
+ if (valid_lft >= 0x7FFFFFFF/HZ)
+ valid_lft = 0x7FFFFFFF/HZ;
+ flags = RTF_EXPIRES;
+ expires = jiffies_to_clock_t(valid_lft * HZ);
+ }
if (prefered_lft == 0)
ifa_flags |= IFA_F_DEPRECATED;
spin_unlock_bh(&ifp->lock);
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev,
- jiffies_to_clock_t(valid_lft * HZ), flags);
+ expires, flags);
/*
* Note that section 3.1 of RFC 4429 indicates
* that the Optimistic flag should not be set for
ASSERT_RTNL();
- if (dev == init_net.loopback_dev && how == 1)
+ if ((dev->flags & IFF_LOOPBACK) && how == 1)
how = 0;
rt6_ifdown(net, dev);
/* Step 1: remove reference to ipv6 device from parent device.
Do not dev_put!
*/
- if (how == 1) {
+ if (how) {
idev->dead = 1;
/* protected by rtnl_lock */
write_lock_bh(&idev->lock);
/* Step 3: clear flags for stateless addrconf */
- if (how != 1)
+ if (!how)
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 4: clear address list */
#ifdef CONFIG_IPV6_PRIVACY
- if (how == 1 && del_timer(&idev->regen_timer))
+ if (how && del_timer(&idev->regen_timer))
in6_dev_put(idev);
/* clear tempaddr list */
/* Step 5: Discard multicast list */
- if (how == 1)
+ if (how)
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
/* Shot the device (if unregistered) */
- if (how == 1) {
+ if (how) {
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags,
u32 prefered_lft, u32 valid_lft)
{
- u32 flags = RTF_EXPIRES;
+ u32 flags;
+ clock_t expires;
if (!valid_lft || (prefered_lft > valid_lft))
return -EINVAL;
if (valid_lft == INFINITY_LIFE_TIME) {
ifa_flags |= IFA_F_PERMANENT;
flags = 0;
- } else if (valid_lft >= 0x7FFFFFFF/HZ)
- valid_lft = 0x7FFFFFFF/HZ;
+ expires = 0;
+ } else {
+ if (valid_lft >= 0x7FFFFFFF/HZ)
+ valid_lft = 0x7FFFFFFF/HZ;
+ flags = RTF_EXPIRES;
+ expires = jiffies_to_clock_t(valid_lft * HZ);
+ }
if (prefered_lft == 0)
ifa_flags |= IFA_F_DEPRECATED;
ipv6_ifa_notify(0, ifp);
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev,
- jiffies_to_clock_t(valid_lft * HZ), flags);
+ expires, flags);
addrconf_verify(0);
return 0;
neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6,
NET_IPV6_NEIGH, "ipv6",
&ndisc_ifinfo_sysctl_change,
- NULL);
+ ndisc_ifinfo_sysctl_strategy);
__addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
idev->dev->ifindex, idev, &idev->cnf);
}
EXPORT_SYMBOL(unregister_inet6addr_notifier);
-
-static int addrconf_net_init(struct net *net)
-{
- return 0;
-}
-
static void addrconf_net_exit(struct net *net)
{
struct net_device *dev;
}
static struct pernet_operations addrconf_net_ops = {
- .init = addrconf_net_init,
.exit = addrconf_net_exit,
};
projects / linux-2.6 / blobdiff