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[NET]: Disable netfilter sockopts when not in the initial network namespace

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Until we support multiple network namespaces with netfilter only allow
netfilter configuration in the initial network namespace.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2007-09-12 13:58:02 +02:00 committed by David S. Miller
parent d8a5ec6727
commit c48dad7ecd
1 changed files with 7 additions and 0 deletions
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7
net/netfilter/nf_sockopt.c
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@ -69,6 +69,9 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
struct nf_sockopt_ops *ops;
int ret;
if (sk->sk_net != &init_net)
return -ENOPROTOOPT;
if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
return -EINTR;
@ -125,6 +128,10 @@ static int compat_nf_sockopt(struct sock *sk, int pf, int val,
struct nf_sockopt_ops *ops;
int ret;
if (sk->sk_net != &init_net)
return -ENOPROTOOPT;
if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
return -EINTR;