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authorDenis V. Lunev <den@openvz.org>2008-02-29 05:50:55 +0100
committerDavid S. Miller <davem@davemloft.net>2008-02-29 05:50:55 +0100
commita75e936f2f1ba8428f70b204f3ddd3a7ff17d281 (patch)
tree96ec0b9caec0bfe9b1cfd8a1300d21ec2f3766f4 /net/ipv4/route.c
parent[IPV4]: rt_cache_get_next should take rt_genid into account. (diff)
downloadlinux-a75e936f2f1ba8428f70b204f3ddd3a7ff17d281.tar.xz
linux-a75e936f2f1ba8428f70b204f3ddd3a7ff17d281.zip
[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>
Diffstat (limited to '')
-rw-r--r--net/ipv4/route.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f9654f2ae5b3..af0b23ad93ba 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -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,
};