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netfilter: nat: merge nf_nat_redirect into nf_nat 

Similar to previous patch, this time, merge redirect+nat.
The redirect module is just 2k in size, get rid of it and make
redirect part available from the nat core.

before:
   text    data     bss     dec     hex filename
  19461    1484    4138   25083    61fb net/netfilter/nf_nat.ko
   1236     792       0    2028     7ec net/netfilter/nf_nat_redirect.ko
after:
  20340    1508    4138   25986    6582 net/netfilter/nf_nat.ko

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2018-05-24 13:17:29 +02:00 committed by Pablo Neira Ayuso
parent 0168e8b361
commit 1ac89d2015
3 changed files with 2 additions and 10 deletions
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6
net/netfilter/Kconfig
View File

@ -433,11 +433,7 @@ config NF_NAT_TFTP
default NF_NAT && NF_CONNTRACK_TFTP
config NF_NAT_REDIRECT
tristate "IPv4/IPv6 redirect support"
depends on NF_NAT
help
This is the kernel functionality to redirect packets to local
machine through NAT.
bool
config NETFILTER_SYNPROXY
tristate

2
net/netfilter/Makefile
View File

@ -55,7 +55,7 @@ obj-$(CONFIG_NF_LOG_COMMON) += nf_log_common.o
obj-$(CONFIG_NF_LOG_NETDEV) += nf_log_netdev.o
obj-$(CONFIG_NF_NAT) += nf_nat.o
obj-$(CONFIG_NF_NAT_REDIRECT) += nf_nat_redirect.o
nf_nat-$(CONFIG_NF_NAT_REDIRECT) += nf_nat_redirect.o
# NAT helpers
obj-$(CONFIG_NF_NAT_AMANDA) += nf_nat_amanda.o

4
net/netfilter/nf_nat_redirect.c
View File

@ -15,7 +15,6 @@
#include <linux/inetdevice.h>
#include <linux/ip.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/netfilter.h>
#include <linux/types.h>
@ -124,6 +123,3 @@ nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range2 *range,
return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_DST);
}
EXPORT_SYMBOL_GPL(nf_nat_redirect_ipv6);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");