subsys/net/lib/mqtt_sn/Kconfig

# MQTT-SN Library for Zephyr

# Copyright (c) 2022 René Beckmann
# SPDX-License-Identifier: Apache-2.0

config MQTT_SN_LIB
	bool "MQTT-SN Library Support [EXPERIMENTAL]"
	select EXPERIMENTAL
	help
	  Enable the Zephyr MQTT Library

if MQTT_SN_LIB

config MQTT_SN_LIB_MAX_PAYLOAD_SIZE
	int "Maximum payload size of an MQTT-SN message"
	default $(UINT8_MAX)
	range $(UINT8_MAX) $(UINT16_MAX)

config MQTT_SN_LIB_MAX_MSGS
	int "Number of preallocated messages"
	default 10
	range 1 $(UINT8_MAX)

config MQTT_SN_LIB_MAX_TOPICS
	int "Number of topics that can be managed"
	default 20
	range 1 $(UINT8_MAX)

config MQTT_SN_LIB_MAX_TOPIC_SIZE
	int "Maximum topic length"
	default 64
	range 1 $(UINT16_MAX)

config MQTT_SN_LIB_MAX_GATEWAYS
	int "Maximum number of gateways to store internally"
	default 2
	range 1 $(UINT8_MAX)

config MQTT_SN_LIB_MAX_ADDR_SIZE
	int "Maximum address size for the transport"
	default 21
	range 1 $(UINT8_MAX)
	help
	  The MQTT_SN library stores addresses internally and thus
	  needs to know how long your addresses are. Set this to the maximum
	  length in bytes of the address data structure for your implemented transport.

config MQTT_SN_LIB_BROADCAST_RADIUS
	int "Radius for broadcast messages"
	default 1
	range 1 $(UINT8_MAX)

config MQTT_SN_LIB_MAX_PUBLISH
	int "Number of publishes that can be in-flight at the same time"
	default 5
	range 1 $(UINT8_MAX)

config MQTT_SN_KEEPALIVE
	int "Maximum number of clients Keep alive time for MQTT-SN (in seconds)"
	default 60
	range 0 $(UINT16_MAX)
	help
	  Keep alive time for MQTT-SN (in seconds). Sending of Ping Requests to
	  keep the connection alive are governed by this value.

config MQTT_SN_TRANSPORT_UDP
	bool "UDP transport for MQTT-SN"
	select NET_SOCKETS
	select NET_IPV4_IGMP if NET_IPV4
	select NET_IPV6_MLD if NET_IPV6

config MQTT_SN_LIB_N_RETRY
	int "Number of times to retry messages"
	range 1 20
	default 5

config MQTT_SN_LIB_T_RETRY
	int "Time (seconds) to wait for responses"
	default 10
	range 0 $(UINT8_MAX)

config MQTT_SN_LIB_T_SEARCHGW
	int "Max time (seconds) to wait before sending SEARCHGW"
	default 10
	range 0 $(UINT8_MAX)

config MQTT_SN_LIB_T_GWINFO
	int "Max time (seconds) to wait before sending GWINFO"
	default 10
	range 0 $(UINT8_MAX)

config MQTT_SN_LIB_N_ADV
	int "Number of missed Advertise messages before considering GW lost"
	default 2
	range 1 $(UINT8_MAX)

module=MQTT_SN
module-dep=NET_LOG
module-str=Log level for MQTT-SN
module-help=Enables mqtt-sn debug messages.
source "subsys/net/Kconfig.template.log_config.net"

endif # MQTT_SN_LIB