[NETNS]: Process /proc/net/rt_cache inside a namespace. (a75e936f) · Commits · 戴 / test

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,
		};