# networking.kconf - Generic networking configuration options

#
# Copyright (c) 2015 Intel Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

#
# Networking options
#

menuconfig NETWORKING
	bool
	prompt "Generic networking support"
	select NANO_TIMEOUTS
	select NANO_TIMERS
	default n
	help
	  This option enabled generic networking support.

if NETWORKING

config NET_BUF_RX_SIZE
	int "Number of network buffers to use when receiving data"
	default 1
	help
	Each network buffer will contain one received IPv6 or IPv4 packet.
	Each buffer will occupy 1280 bytes of memory.

config NET_BUF_TX_SIZE
	int "Number of network buffers to use when sending data"
	default 2
	help
	Each network buffer will contain one sent IPv6 or IPv4 packet.
	Each buffer will occupy 1280 bytes of memory.

choice
prompt "Internet Protocol version"
depends on NETWORKING
help
	The IP stack can either support IPv6 or IPv4 but
	not both at the same time. The IPv6 support should
	be selected by default as there is limited set of
	network bearers provided that support IPv4.
default NETWORKING_WITH_IPV6
config NETWORKING_WITH_IPV6
	bool "IPv6"
	help
	  Choose this if unsure.
config NETWORKING_WITH_IPV4
	bool "IPv4"
	help
	  Legacy IP.
endchoice

config	NETWORKING_STATISTICS
	bool
	prompt "Enable IP statistics gathering"
	depends on NETWORKING
	default n
	help
	  This is only for debugging the network. Do not activate
	  this in live system! The option uses memory and slows
	  down IP packet processing.

if NETWORKING_WITH_IPV6
config	NETWORKING_IPV6_NO_ND
	bool
	prompt "Disable IPv6 neighbor discovery"
	depends on NETWORKING
	depends on NETWORKING_WITH_IPV6
	default y
	help
	  Normally ND should be enabled but in order to simplify
	  the network setup, it is currently turned off.
endif

config	NETWORKING_WITH_RPL
	bool
	prompt "Enable RPL (ripple) IPv6 mesh routing protocol"
	depends on NETWORKING && NETWORKING_WITH_IPV6
	default n
	help
	  Enable RPL (RFC 6550) IPv6 Routing Protocol for
	  Low-Power and Lossy Networks.

config	RPL_STATS
	bool
	prompt "Enable RPL statistics"
	depends on NETWORKING_WITH_RPL
	select NETWORKING_STATISTICS
	default n
	help
	  Enable RPL statistics support.

config	RPL_PROBING
	bool
	prompt "Enable RPL probing"
	depends on NETWORKING_WITH_RPL
	default n
	help
	  Enable RPL probing support. When enabled, probes will be sent
	  periodically to keep parent link estimates up to date.

choice
prompt "Objective function"
depends on NETWORKING_WITH_RPL
help
	The objective function to use. All RPL nodes in a DODAG
	must use the same OF.
	The default is MRHOF, see RFC 6719 for details.
	Other alternative is OF0, see RFC 6552 for details.
default RPL_WITH_MRHOF
config RPL_WITH_MRHOF
	bool "Minimum Rank with Hysteresis, RFC 6719"
	help
	  Choose this (MRHOF) if unsure.
config RPL_WITH_OF0
	bool "OF Zero, RFC 6552"
	help
	  Objective function zero (OF0).
endchoice

config	NETWORKING_WITH_LOGGING
	bool
	prompt "Enable logging of the uIP stack"
	depends on NETWORKING
	default n
	help
	  Enable packet and uIP stack logging

config	NETWORKING_WITH_LOOPBACK
	bool
	prompt "Enable loopback driver"
	depends on NETWORKING
	default n
	help
	  Enable a simple loopback driver that installs
	  IPv6 loopback addresses into routing table and
	  neighbor cache. All packets transmitted are
	  looped back to the receiving fifo/fiber.

config	NETWORKING_UART
	bool
	prompt "Network UART/slip driver"
	depends on NETWORKING
	select UART_SIMPLE
	default n
	help
	  Enable UART driver for passing IPv6 packets using slip.
	  This requires running tunslip6 tool in host. See README
	  file at net/ip/contiki/tools directory for details.

config	NETWORKING_DEBUG_UART
	bool
	prompt "Network UART driver debug"
	depends on NETWORKING_UART && NETWORKING_WITH_LOGGING
	default n
	help
	  This option enables debug support for network UART
	  driver.

config	NETWORKING_WITH_15_4
	bool
	prompt "Enable 802.15.4 driver"
	depends on NETWORKING && NETWORKING_WITH_IPV6
	default n
	help
	  Enable 802.15.4 driver that receives the IPv6 packet,
	  does header compression on it and writes it to the
	  802.15.4 stack Tx FIFO. The 802.15.4 Tx fiber will pick up
	  the header compressed IPv6 6lowpan packet and fragment
	  it into suitable chunks ready to be sent to the 802.15.4
	  hw driver

config NETWORKING_WITH_15_4_PAN_ID
       hex
       prompt "IEEE 802.15.4 PAN id/address"
       depends on NETWORKING_WITH_15_4
       default 0xabcd
       help
         All the 802.15.4 devices that want to connect to each
         other need to have same PAN id (address).
	 Default PAN id is 0xABCD

choice
prompt "802.15.4 Radio Driver"
depends on NETWORKING && NETWORKING_WITH_15_4
default n
help
       The 802.15.4 layer can either support loopback within
       or loopback with uart but not both at the same time.
config	NETWORKING_WITH_15_4_LOOPBACK
	bool
	prompt "Enable 802.15.4 loopback radio driver"
	help
	  Enable 802.15.4 loopback radio driver that receives
	  the 802.15.4 frame and put it back 802.15.4 Rx Fifo.

config NETWORKING_WITH_15_4_LOOPBACK_UART
       bool
       prompt "Enable 802.15.4 loopback radio uart driver"
       select UART_SIMPLE
       help
         Enable 802.15.4 loopback radio driver that sends
         802.15.4 frames out of qemu through uart and receive
         frames through uart. This way one can test 802.15.4 frames
         between two qemus
endchoice

config	NETWORKING_WITH_6LOWPAN
	bool
	prompt "Enable 6LoWPAN (IPv6 compression) in the uIP stack"
	depends on NETWORKING
	depends on NETWORKING_WITH_15_4
	default n
	help
	  Enable 6LoWPAN in uIP stack

choice
prompt "6LoWPAN compression method"
depends on NETWORKING_WITH_6LOWPAN
help
	Select the compression method that is used in 6LoWPAN.
default 6LOWPAN_COMPRESSION_IPV6
config 6LOWPAN_COMPRESSION_IPV6
	bool "No compression"
	help
	  Choose this if unsure.
config 6LOWPAN_COMPRESSION_IPHC
	bool "IP header compression"
	help
	  IP header compression
endchoice

config	TINYDTLS
	bool
	prompt "Enable tinyDTLS support."
	depends on NETWORKING
	default n
	help
	  Enable tinyDTLS support so that applications can use it.
	  This is needed at least in CoAP.

config	TINYDTLS_DEBUG
	bool
	prompt "Enable tinyDTLS debugging support."
	depends on TINYDTLS
	default n
	help
	  Enable tinyDTLS debugging support.

config	ER_COAP
	bool
	prompt "Enable Erbium CoAP engine support."
	depends on NETWORKING
	default n
	help
	  Enable Erbium CoAP engine support so that applications can use it.

config	ER_COAP_WITH_DTLS
	bool
	prompt "Use DTLS in CoAP"
	depends on ER_COAP
	select TINYDTLS
	default n
	help
	  Make CoAP engine use DTLS. Note that if you activate DTLS, you
	  are not able to send or receive non-DTLS CoAP messages, and
	  vice versa.

config	ER_COAP_CLIENT
	bool
	prompt "Enable CoAP client support"
	depends on ER_COAP
	default n
	help
	  Compile in client CoAP support.

endif