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sock_diag: fix filter code sent to userspace

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Filters need to be translated to real BPF code for userland, like SO_GETFILTER.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2013-06-05 15:30:55 +02:00 • committed by David S. Miller
parent 92bb73ea2c
commit ed13998c31
3 changed files with 9 additions and 3 deletions
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9
net/core/sock_diag.c
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@ -73,8 +73,13 @@ int sock_diag_put_filterinfo(struct user_namespace *user_ns, struct sock *sk,
goto out;
}
if (filter)
memcpy(nla_data(attr), filter->insns, len);
if (filter) {
struct sock_filter *fb = (struct sock_filter *)nla_data(attr);
int i;
for (i = 0; i < filter->len; i++, fb++)
sk_decode_filter(&filter->insns[i], fb);
}
out:
rcu_read_unlock();