From b854272b3c732316676e9128f7b9e6f1e1ff88b0 Mon Sep 17 00:00:00 2001 From: "Denis V. Lunev" Date: Sat, 1 Dec 2007 00:21:31 +1100 Subject: [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 Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller Signed-off-by: Herbert Xu --- net/decnet/dn_table.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'net/decnet/dn_table.c') diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c index fda0772fa215..a3bdb8dd1fb2 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); -- cgit v1.2.3