kernel: kmod-nft-nat6: Remove package

The nft NAT packages for IPv4 and IPv6 were merged into the common
packages with kernel 5.1. The kmod-nft-nat6 package was empty in our
build, remove it.

Multiple kernel configuration options were also removed, remove them
from our generic kernel configuration too.

Signed-off-by: Hauke Mehrtens <[email protected]>

include/netfilter.mk

@@ -341,12 +341,7 @@ $(eval $(if $(NF_KMOD),$(call nf_add,NFT_BRIDGE,CONFIG_NF_CONNTRACK_BRIDGE, $(P_
 
 $(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT,CONFIG_NFT_NAT, $(P_XT)nft_nat),))
 $(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT,CONFIG_NFT_NAT, $(P_XT)nft_chain_nat),))
-$(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT,CONFIG_NFT_REDIR_IPV4, $(P_V4)nft_redir_ipv4),))
 $(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT,CONFIG_NFT_MASQ, $(P_XT)nft_masq),))
-$(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT,CONFIG_NFT_MASQ_IPV4, $(P_V4)nft_masq_ipv4),))
-
-$(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT6,CONFIG_NFT_REDIR_IPV6, $(P_V6)nft_redir_ipv6),))
-$(eval $(if $(NF_KMOD),$(call nf_add,NFT_NAT6,CONFIG_NFT_MASQ_IPV6, $(P_V6)nft_masq_ipv6),))
 
 $(eval $(if $(NF_KMOD),$(call nf_add,NFT_FIB,CONFIG_NFT_FIB, $(P_XT)nft_fib),))
 $(eval $(if $(NF_KMOD),$(call nf_add,NFT_FIB,CONFIG_NFT_FIB_INET, $(P_XT)nft_fib_inet),))

package/kernel/linux/modules/netfilter.mk

@@ -1185,17 +1185,6 @@ endef
 $(eval $(call KernelPackage,nft-offload))
 
 
-define KernelPackage/nft-nat6
-  SUBMENU:=$(NF_MENU)
-  TITLE:=Netfilter nf_tables IPv6-NAT support
-  DEPENDS:=+kmod-nft-nat +kmod-nf-nat6
-  FILES:=$(foreach mod,$(NFT_NAT6-m),$(LINUX_DIR)/net/$(mod).ko)
-  AUTOLOAD:=$(call AutoProbe,$(notdir $(NFT_NAT6-m)))
-  KCONFIG:=$(KCONFIG_NFT_NAT6)
-endef
-
-$(eval $(call KernelPackage,nft-nat6))
-
 define KernelPackage/nft-netdev
   SUBMENU:=$(NF_MENU)
   TITLE:=Netfilter nf_tables netdev support

package/network/config/firewall4/Makefile

@@ -23,7 +23,7 @@ define Package/firewall4
   TITLE:=OpenWrt 4th gen firewall
   DEPENDS:= \
 	+kmod-nft-core +kmod-nft-fib +kmod-nft-offload \
-	+kmod-nft-nat +kmod-nft-nat6 \
+	+kmod-nft-nat \
 	+nftables-json \
 	+ucode +ucode-mod-fs +ucode-mod-ubus +ucode-mod-uci
   EXTRA_DEPENDS:=ucode (>= 2022-03-22)

target/linux/generic/config-5.10

@@ -4134,10 +4134,7 @@ CONFIG_NF_CONNTRACK_PROCFS=y
 # CONFIG_NF_NAT_AMANDA is not set
 # CONFIG_NF_NAT_FTP is not set
 # CONFIG_NF_NAT_H323 is not set
-# CONFIG_NF_NAT_IPV6 is not set
 # CONFIG_NF_NAT_IRC is not set
-CONFIG_NF_NAT_MASQUERADE_IPV4=y
-CONFIG_NF_NAT_MASQUERADE_IPV6=y
 # CONFIG_NF_NAT_NEEDED is not set
 # CONFIG_NF_NAT_PPTP is not set
 # CONFIG_NF_NAT_PROTO_GRE is not set

target/linux/generic/config-5.15

@@ -4294,10 +4294,7 @@ CONFIG_NF_CONNTRACK_PROCFS=y
 # CONFIG_NF_NAT_AMANDA is not set
 # CONFIG_NF_NAT_FTP is not set
 # CONFIG_NF_NAT_H323 is not set
-# CONFIG_NF_NAT_IPV6 is not set
 # CONFIG_NF_NAT_IRC is not set
-CONFIG_NF_NAT_MASQUERADE_IPV4=y
-CONFIG_NF_NAT_MASQUERADE_IPV6=y
 # CONFIG_NF_NAT_NEEDED is not set
 # CONFIG_NF_NAT_PPTP is not set
 # CONFIG_NF_NAT_PROTO_GRE is not set