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[NETNS]: Process /proc/net/rt_cache inside a namespace. 

Show routing cache for a particular namespace only.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Denis V. Lunev 2008-02-28 20:50:55 -08:00 committed by David S. Miller
parent 642d631811
commit a75e936f2f
1 changed files with 7 additions and 3 deletions
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10
net/ipv4/route.c
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@ -273,6 +273,7 @@ static unsigned int rt_hash_code(u32 daddr, u32 saddr)
#ifdef CONFIG_PROC_FS
struct rt_cache_iter_state {
struct seq_net_private p;
int bucket;
int genid;
};
@ -285,7 +286,8 @@ static struct rtable *rt_cache_get_first(struct rt_cache_iter_state *st)
rcu_read_lock_bh();
r = rcu_dereference(rt_hash_table[st->bucket].chain);
while (r) {
if (r->rt_genid == st->genid)
if (r->u.dst.dev->nd_net == st->p.net &&
r->rt_genid == st->genid)
return r;
r = rcu_dereference(r->u.dst.rt_next);
}
@ -312,6 +314,8 @@ static struct rtable *rt_cache_get_next(struct rt_cache_iter_state *st,
struct rtable *r)
{
while ((r = __rt_cache_get_next(st, r)) != NULL) {
if (r->u.dst.dev->nd_net != st->p.net)
continue;
if (r->rt_genid == st->genid)
break;
}
@ -398,7 +402,7 @@ static const struct seq_operations rt_cache_seq_ops = {
static int rt_cache_seq_open(struct inode *inode, struct file *file)
{
return seq_open_private(file, &rt_cache_seq_ops,
return seq_open_net(inode, file, &rt_cache_seq_ops,
sizeof(struct rt_cache_iter_state));
}
@ -407,7 +411,7 @@ static const struct file_operations rt_cache_seq_fops = {
.open = rt_cache_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
.release = seq_release_net,
};