#
# Copyright (C) 2017-2019 Chen Minqiang <ptpt52@gmail.com>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk

PKG_NAME:=natflow
PKG_VERSION:=20260930
PKG_RELEASE:=92

PKG_SOURCE:=$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=https://github.com/ptpt52/natflow.git
PKG_SOURCE_PROTO:=git
PKG_SOURCE_VERSION:=a6718c5be741da1a6569e1bd0cac4e4ad159f07d
PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
PKG_MAINTAINER:=Chen Minqiang <ptpt52@gmail.com>
PKG_LICENSE:=GPL-2.0

include $(INCLUDE_DIR)/package.mk

define KernelPackage/natflow
  CATEGORY:=X
  SUBMENU:=Fast Forward Stacks
  TITLE:=natflow kernel driver
  KCONFIG:= \
	CONFIG_NETFILTER_INGRESS=y
  FILES:=$(PKG_BUILD_DIR)/natflow.ko
  AUTOLOAD:=$(call AutoLoad,96,natflow)
  DEPENDS:= +kmod-ipt-conntrack +kmod-ipt-nat +kmod-ipt-ipset
endef

define KernelPackage/natflow/description
  fast nat forward kmod
endef

include $(INCLUDE_DIR)/kernel-defaults.mk

EXTRA_CFLAGS += \
	-Wno-stringop-overread \
	-DCONFIG_NATFLOW_PATH \
	-DNATFLOW_VERSION=\\\"$(PKG_VERSION)-$(shell echo $(PKG_SOURCE_VERSION) | head -c7)\\\"

define Build/Compile/natflow
	+$(MAKE) $(PKG_JOBS) -C "$(LINUX_DIR)" \
		EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
		$(KERNEL_MAKE_FLAGS) \
		M="$(PKG_BUILD_DIR)" \
		modules
endef

define Build/Compile
	$(call Build/Compile/natflow)
endef

define Package/natflow-boot
  CATEGORY:=X
  SUBMENU:=Fast Forward Stacks
  TITLE:=natflow boot system scripts
  PKGARCH:=all
  DEPENDS:= +kmod-natflow
endef

define Package/natflow-boot/conffiles
/etc/config/natflow
endef

define Package/natflow-boot/install
	$(INSTALL_DIR) $(1)/etc/init.d \
			$(1)/etc/config \
			$(1)/etc/hotplug.d/iface \
			$(1)/etc/hotplug.d/net 
	$(INSTALL_BIN) ./files/natflow-boot.init $(1)/etc/init.d/natflow-boot
	$(INSTALL_CONF) ./files/natflow-boot.config $(1)/etc/config/natflow
	$(INSTALL_BIN) ./files/natflow-boot.hotplug $(1)/etc/hotplug.d/iface/90-natflow
	$(INSTALL_BIN) ./files/natflow-boot.hotplug $(1)/etc/hotplug.d/net/90-natflow
endef

$(eval $(call KernelPackage,natflow))
$(eval $(call BuildPackage,natflow-boot))