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netfilter: nat: remove nf_nat_l4proto.h

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after ipv4/6 nat tracker merge, there are no external callers, so
make last function static and remove the header.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2019-02-19 17:38:22 +01:00 committed by Pablo Neira Ayuso
parent 3bf195ae60
commit 14cb1a6e29
3 changed files with 6 additions and 26 deletions
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16
include/net/netfilter/nf_nat_l4proto.h
View File

@ -1,16 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Header for use in defining a given protocol. */
#ifndef _NF_NAT_L4PROTO_H
#define _NF_NAT_L4PROTO_H
#include <net/netfilter/nf_nat.h>
#include <linux/netfilter/nfnetlink_conntrack.h>
struct nf_nat_l3proto;
/* Translate a packet to the target according to manip type. Return on success. */
bool nf_nat_l4proto_manip_pkt(struct sk_buff *skb,
const struct nf_nat_l3proto *l3proto,
unsigned int iphdroff, unsigned int hdroff,
const struct nf_conntrack_tuple *tuple,
enum nf_nat_manip_type maniptype);
#endif /*_NF_NAT_L4PROTO_H*/

1
net/netfilter/nf_nat_helper.c
View File

@ -23,7 +23,6 @@
#include <net/netfilter/nf_conntrack_seqadj.h>
#include <net/netfilter/nf_nat.h>
#include <net/netfilter/nf_nat_l3proto.h>
#include <net/netfilter/nf_nat_l4proto.h>
#include <net/netfilter/nf_nat_core.h>
#include <net/netfilter/nf_nat_helper.h>

15
net/netfilter/nf_nat_proto.c
View File

@ -22,7 +22,6 @@
#include <net/netfilter/nf_nat.h>
#include <net/netfilter/nf_nat_core.h>
#include <net/netfilter/nf_nat_l3proto.h>
#include <net/netfilter/nf_nat_l4proto.h>
#include <linux/ipv6.h>
#include <linux/netfilter_ipv6.h>
@ -34,6 +33,7 @@
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack.h>
#include <linux/netfilter/nfnetlink_conntrack.h>
static const struct nf_nat_l3proto nf_nat_l3proto_ipv4;
#if IS_ENABLED(CONFIG_IPV6)
@ -320,7 +320,7 @@ gre_manip_pkt(struct sk_buff *skb,
return true;
}
bool nf_nat_l4proto_manip_pkt(struct sk_buff *skb,
static bool l4proto_manip_pkt(struct sk_buff *skb,
const struct nf_nat_l3proto *l3proto,
unsigned int iphdroff, unsigned int hdroff,
const struct nf_conntrack_tuple *tuple,
@ -356,7 +356,6 @@ bool nf_nat_l4proto_manip_pkt(struct sk_buff *skb,
/* If we don't know protocol -- no error, pass it unmodified. */
return true;
}
EXPORT_SYMBOL_GPL(nf_nat_l4proto_manip_pkt);
static bool nf_nat_ipv4_manip_pkt(struct sk_buff *skb,
unsigned int iphdroff,
@ -372,8 +371,8 @@ static bool nf_nat_ipv4_manip_pkt(struct sk_buff *skb,
iph = (void *)skb->data + iphdroff;
hdroff = iphdroff + iph->ihl * 4;
if (!nf_nat_l4proto_manip_pkt(skb, &nf_nat_l3proto_ipv4, iphdroff,
hdroff, target, maniptype))
if (!l4proto_manip_pkt(skb, &nf_nat_l3proto_ipv4, iphdroff,
hdroff, target, maniptype))
return false;
iph = (void *)skb->data + iphdroff;
@ -409,8 +408,8 @@ static bool nf_nat_ipv6_manip_pkt(struct sk_buff *skb,
goto manip_addr;
if ((frag_off & htons(~0x7)) == 0 &&
!nf_nat_l4proto_manip_pkt(skb, &nf_nat_l3proto_ipv6, iphdroff, hdroff,
target, maniptype))
!l4proto_manip_pkt(skb, &nf_nat_l3proto_ipv6, iphdroff, hdroff,
target, maniptype))
return false;
/* must reload, offset might have changed */
@ -758,8 +757,6 @@ void nf_nat_l3proto_exit(void)
}
#if IS_ENABLED(CONFIG_IPV6)
static const struct nf_nat_l3proto nf_nat_l3proto_ipv6;
static const struct nf_nat_l3proto nf_nat_l3proto_ipv6 = {
.l3proto = NFPROTO_IPV6,
.manip_pkt = nf_nat_ipv6_manip_pkt,