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Commit a75e936f authored by Denis V. Lunev's avatar Denis V. Lunev Committed by David S. Miller
Browse files

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



Show routing cache for a particular namespace only.

Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 642d6318

net/ipv4/route.c

+7 −3
Original line number Diff line number Diff line
@@ -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,

};