![Patrick McHardy](/assets/img/avatar_default.png)
The only remaining user of NAT protocol module reference counting is NAT ctnetlink support. Since this is a fairly short sequence of code, convert over to use RCU and remove module reference counting. Module unregistration is already protected by RCU using synchronize_rcu(), so no further changes are necessary. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/* The "unknown" protocol. This is what is used for protocols we
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* don't understand. It's returned by ip_ct_find_proto().
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*/
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/* (C) 1999-2001 Paul `Rusty' Russell
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* (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/netfilter.h>
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#include <net/netfilter/nf_nat.h>
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#include <net/netfilter/nf_nat_rule.h>
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#include <net/netfilter/nf_nat_protocol.h>
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static bool unknown_in_range(const struct nf_conntrack_tuple *tuple,
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enum nf_nat_manip_type manip_type,
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const union nf_conntrack_man_proto *min,
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const union nf_conntrack_man_proto *max)
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{
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return true;
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}
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static void unknown_unique_tuple(struct nf_conntrack_tuple *tuple,
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const struct nf_nat_ipv4_range *range,
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enum nf_nat_manip_type maniptype,
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const struct nf_conn *ct)
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{
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/* Sorry: we can't help you; if it's not unique, we can't frob
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anything. */
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return;
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}
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static bool
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unknown_manip_pkt(struct sk_buff *skb,
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unsigned int iphdroff,
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const struct nf_conntrack_tuple *tuple,
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enum nf_nat_manip_type maniptype)
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{
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return true;
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}
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const struct nf_nat_protocol nf_nat_unknown_protocol = {
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.manip_pkt = unknown_manip_pkt,
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.in_range = unknown_in_range,
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.unique_tuple = unknown_unique_tuple,
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};
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