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[NETFILTER]: nfnetlink_queue: fix EPERM when binding/unbinding and instance 0 exists

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Similar to the nfnetlink_log problem, nfnetlink_queue incorrectly
returns -EPERM when binding or unbinding to an address family and
queueing instance 0 exists and is owned by a different process. Unlike
nfnetlink_log it previously completes the operation, but it is still
incorrect.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2008-03-10 16:44:36 -07:00 committed by David S. Miller
parent b7047a1c88
commit 914afea84e
1 changed files with 4 additions and 11 deletions
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15
net/netfilter/nfnetlink_queue.c
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@ -703,19 +703,12 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
/* Commands without queue context - might sleep */
switch (cmd->command) {
case NFQNL_CFG_CMD_PF_BIND:
ret = nf_register_queue_handler(ntohs(cmd->pf),
&nfqh);
break;
return nf_register_queue_handler(ntohs(cmd->pf),
&nfqh);
case NFQNL_CFG_CMD_PF_UNBIND:
ret = nf_unregister_queue_handler(ntohs(cmd->pf),
&nfqh);
break;
default:
break;
return nf_unregister_queue_handler(ntohs(cmd->pf),
&nfqh);
}
if (ret < 0)
return ret;
}
rcu_read_lock();