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authorDenis V. Lunev <den@openvz.org>2007-12-01 00:21:31 +1100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:54:24 -0800
commitb854272b3c732316676e9128f7b9e6f1e1ff88b0 (patch)
treec90c74b9ec068453881f1173da4c57d6bb00a7d9 /net/decnet/dn_table.c
parentad5d20a63940fcfb40af76ba06148f36d5d0b433 (diff)
downloadop-kernel-dev-b854272b3c732316676e9128f7b9e6f1e1ff88b0.zip
op-kernel-dev-b854272b3c732316676e9128f7b9e6f1e1ff88b0.tar.gz
[NET]: Modify all rtnetlink methods to only work in the initial namespace (v2)
Before I can enable rtnetlink to work in all network namespaces I need to be certain that something won't break. So this patch deliberately disables all of the rtnletlink methods in everything except the initial network namespace. After the methods have been audited this extra check can be disabled. Changes from v1: - added IPv6 addrlabel protection Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/decnet/dn_table.c')
-rw-r--r--net/decnet/dn_table.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index fda0772..a3bdb8d 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -463,12 +463,16 @@ static int dn_fib_table_dump(struct dn_fib_table *tb, struct sk_buff *skb,
int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct net *net = skb->sk->sk_net;
unsigned int h, s_h;
unsigned int e = 0, s_e;
struct dn_fib_table *tb;
struct hlist_node *node;
int dumped = 0;
+ if (net != &init_net)
+ return 0;
+
if (NLMSG_PAYLOAD(cb->nlh, 0) >= sizeof(struct rtmsg) &&
((struct rtmsg *)NLMSG_DATA(cb->nlh))->rtm_flags&RTM_F_CLONED)
return dn_cache_dump(skb, cb);
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