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Phonet: routing table Netlink interface

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Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rémi Denis-Courmont
2009-10-14 00:48:29 +00:00
committed by David S. Miller
parent 55748ac046
commit f062f41d06
3 changed files with 162 additions and 0 deletions
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31
net/phonet/pn_dev.c
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@@ -240,6 +240,27 @@ static int phonet_device_autoconf(struct net_device *dev)
return 0;
}
static void phonet_route_autodel(struct net_device *dev)
{
struct phonet_net *pnn = net_generic(dev_net(dev), phonet_net_id);
unsigned i;
DECLARE_BITMAP(deleted, 64);
/* Remove left-over Phonet routes */
bitmap_zero(deleted, 64);
spin_lock_bh(&pnn->routes.lock);
for (i = 0; i < 64; i++)
if (dev == pnn->routes.table[i]) {
set_bit(i, deleted);
pnn->routes.table[i] = NULL;
dev_put(dev);
}
spin_unlock_bh(&pnn->routes.lock);
for (i = find_first_bit(deleted, 64); i < 64;
i = find_next_bit(deleted, 64, i + 1))
rtm_phonet_notify(RTM_DELROUTE, dev, i);
}
/* notify Phonet of device events */
static int phonet_device_notify(struct notifier_block *me, unsigned long what,
void *arg)
@@ -253,6 +274,7 @@ static int phonet_device_notify(struct notifier_block *me, unsigned long what,
break;
case NETDEV_UNREGISTER:
phonet_device_destroy(dev);
phonet_route_autodel(dev);
break;
}
return 0;
@@ -287,10 +309,19 @@ static void phonet_exit_net(struct net *net)
{
struct phonet_net *pnn = net_generic(net, phonet_net_id);
struct net_device *dev;
unsigned i;
rtnl_lock();
for_each_netdev(net, dev)
phonet_device_destroy(dev);
for (i = 0; i < 64; i++) {
dev = pnn->routes.table[i];
if (dev) {
rtm_phonet_notify(RTM_DELROUTE, dev, i);
dev_put(dev);
}
}
rtnl_unlock();
proc_net_remove(net, "phonet");