comment "OpenVPN (not available, needs kernel modules)"
	depends on \
		!( FREETZ_REPLACE_MODULE_AVAILABLE || FREETZ_AVM_HAS_TUN_BUILTIN ) || \
		!( FREETZ_REPLACE_MODULE_AVAILABLE || !FREETZ_AVM_HAS_BUGON_IN_NET_CORE )

config FREETZ_PACKAGE_OPENVPN
	bool "OpenVPN 2.4.10/2.5.0"
	depends on FREETZ_REPLACE_MODULE_AVAILABLE || FREETZ_AVM_HAS_TUN_BUILTIN
	depends on FREETZ_REPLACE_MODULE_AVAILABLE || !FREETZ_AVM_HAS_BUGON_IN_NET_CORE
	select FREETZ_BUSYBOX_BRCTL         if !FREETZ_PACKAGE_BRIDGE_UTILS
	select FREETZ_MODULE_tun            if !FREETZ_AVM_HAS_TUN_BUILTIN
	select FREETZ_MODULE_yf_patchkernel if FREETZ_AVM_HAS_BUGON_IN_NET_CORE
	default n
	help
		VPN Server

if FREETZ_PACKAGE_OPENVPN


choice
	prompt "Version"
		default FREETZ_PACKAGE_OPENVPN_VERSION_CURRENT

	config FREETZ_PACKAGE_OPENVPN_VERSION_ABANDON
		bool "2.4.10"
		depends on FREETZ_KERNEL_VERSION_2_6_13

	config FREETZ_PACKAGE_OPENVPN_VERSION_CURRENT
		bool "2.5.0"
		depends on !FREETZ_KERNEL_VERSION_2_6_13

endchoice


choice
	prompt "GUI"
	default FREETZ_PACKAGE_OPENVPN_USE_V1_CGI

	config FREETZ_PACKAGE_OPENVPN_USE_V0_CGI
		bool "none - binary only"
		depends on FREETZ_SHOW_ADVANCED
		help
			No configuration interface, just the binary.

	config FREETZ_PACKAGE_OPENVPN_USE_V1_CGI
		bool "v1 - old full featured"
		select FREETZ_PACKAGE_OPENVPN_CGI
		help
			Old full featured OpenVPN configuration interface v1.

			CAUTION: You have to delete configurations made with "new"/v2 GUI!
			They share to save the same directory and are not compatible.

	config FREETZ_PACKAGE_OPENVPN_USE_V2_CGI
		bool "v2 - new simple-gui"
		depends on FREETZ_SHOW_ADVANCED
		select FREETZ_PACKAGE_OPENVPN_V2_CGI
		help
			New quite simple OpenVPN configuration interface v2.

			It will not generate a configuration file based on GUI settings
			but just ask for an existing configuration.

			CAUTION: You have to delete configurations made with "old"/v1 GUI!
			They share to save the same directory and are not compatible.

endchoice


choice
	prompt "SSL library"
	default FREETZ_PACKAGE_OPENVPN_OPENSSL

	config FREETZ_PACKAGE_OPENVPN_OPENSSL
		bool "OpenSSL"
		select FREETZ_OPENSSL_VERSION_PROMPT if FREETZ_PACKAGE_OPENVPN_STATIC
		select FREETZ_LIB_libcrypto if ! FREETZ_PACKAGE_OPENVPN_STATIC
		select FREETZ_LIB_libssl    if ! FREETZ_PACKAGE_OPENVPN_STATIC

	config FREETZ_PACKAGE_OPENVPN_MBEDTLS
		bool "mbed TLS"
		select FREETZ_LIB_libmbedcrypto if ! FREETZ_PACKAGE_OPENVPN_STATIC
		select FREETZ_LIB_libmbedtls    if ! FREETZ_PACKAGE_OPENVPN_STATIC
		select FREETZ_LIB_libmbedx509   if ! FREETZ_PACKAGE_OPENVPN_STATIC
		help
			Leads to smaller binaries, but lacks support for some openssl features.

endchoice


config FREETZ_PACKAGE_OPENVPN_FORCE_BLOWFISH
	bool "Include cipher blowfish in mbedTLS"
	depends on FREETZ_PACKAGE_OPENVPN_MBEDTLS
	select FREETZ_LIB_libmbedcrypto_WITH_BLOWFISH if FREETZ_PACKAGE_OPENVPN_MBEDTLS
	default n
	help
		Compile mbedTLS with support for OpenVPN default cipher "blowfish" (BF-CBC).
		Library/Binary size will increase approx. 7k (uncompressed).

config FREETZ_PACKAGE_OPENVPN_WITH_BLOWFISH
	bool
	depends on FREETZ_PACKAGE_OPENVPN_OPENSSL \
		|| (FREETZ_PACKAGE_OPENVPN_MBEDTLS  && FREETZ_LIB_libmbedcrypto_WITH_BLOWFISH)
	default y

config FREETZ_PACKAGE_OPENVPN_STATIC
	bool "Link statically"
	default n
	help
		Causes all libraries OpenVPN depends on to be linked in statically.

config FREETZ_PACKAGE_OPENVPN_WITH_LZO
	bool "With LZO compression"
	select FREETZ_LIB_liblzo2 if ! FREETZ_PACKAGE_OPENVPN_STATIC
	default y
	help
		LZO compression for VPN traffic

config FREETZ_PACKAGE_OPENVPN_WITH_LZ4
	bool "With LZ4 compression"
	select FREETZ_LIB_liblz4 if ! FREETZ_PACKAGE_OPENVPN_STATIC
	default n
	help
		LZ4 compression for VPN traffic

config FREETZ_PACKAGE_OPENVPN_WITH_TRAFFIC_OBFUSCATION
	bool "With traffic obfuscation"
	default n
	help
		Adds support for an additional configuration option 'scramble'
		with the following possible values:
		 * scramble xormask xor_string
		 * scramble reverse
		 * scramble xorptrpos
		 * scramble obfuscate password
		See https://tunnelblick.net/cOpenvpn_xorpatch.html
		
		WARNING:
		scramble-option and SSLH are NOT compatible. SSLH is not
		able to recognize OpenVPN traffic if 'scramble'-option
		is enabled in OpenVPN config. Don't enable it if you plan
		to use SSLH to demultiplex OpenVPN protocol.

comment "Warning: OpenVPN traffic obfuscation and SSLH are not compatible"
	depends on FREETZ_PACKAGE_OPENVPN_WITH_TRAFFIC_OBFUSCATION && FREETZ_PACKAGE_SSLH

config FREETZ_PACKAGE_OPENVPN_WITH_MGMNT
	bool "Enable Management Console"
	default n
	help
		Enables OpenVPN's Management Console for administrative Tasks.
		This feature is not configurable via Web-UI.

config FREETZ_PACKAGE_OPENVPN_ENABLE_SMALL
	bool "Optimize for size"
	default y
	help
		Enables binary optimiziation for size.
		Must be disabled to use the config option "explicit-exit-notify".

config FREETZ_PACKAGE_OPENVPN_USE_IPROUTE
	bool "Use 'ip' instead of 'ifconfig' and 'route'"
	select FREETZ_BUSYBOX_IP
	default n
	help
		Enables openvpn to use ip when setting IPs, link parameters and routes.
		This selects busybox's 'IP' applet.

endif # FREETZ_PACKAGE_OPENVPN