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79 lines
3.1 KiB
Plaintext
79 lines
3.1 KiB
Plaintext
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# Copyright (c) 2020 Freie Universitaet Berlin
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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#
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menuconfig KCONFIG_USEMODULE_EMCUTE
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bool "Configure EMCUTE"
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depends on USEMODULE_EMCUTE
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help
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Configure EMCUTE using Kconfig.`EMCUTE` is the implementation of the
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OASIS MQTT-SN protocol for RIOT. It is designed with a focus on small
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memory footprint and usability. It is designed to run on top of UDP
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only, making use of net_sock_udp.
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if KCONFIG_USEMODULE_EMCUTE
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config EMCUTE_DEFAULT_PORT
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int "Default UDP port to listen on"
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default 1883
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help
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Default UDP port to listen on (also used as SRC port). This will write
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to macro 'CONFIG_EMCUTE_DEFAULT_PORT'. Usage can be found in
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examples/emcute_mqttsn.
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config EMCUTE_BUFSIZE
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int "Buffer size used for TX and RX buffers"
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range 1 32768 if HAS_ARCH_16BIT || HAS_ARCH_8BIT
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default 512
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help
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Configure the size of buffer used for TX and RX. The buffer size MUST be
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less than 32768 on 16-bit and 8-bit platforms to prevent buffer
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overflows.
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config EMCUTE_TOPIC_MAXLEN
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int "Maximum topic length"
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default 196
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help
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Configure maximum length for client's topic. The value must be less than
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(256 - 6) and less than ('CONFIG_EMCUTE_BUFSIZE' - 6).
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config EMCUTE_KEEPALIVE
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int "Keep alive interval in seconds"
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range 300 $(UINT32_MAX)
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default 360
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help
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Configure keep alive interval in seconds. The node will communicate this
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interval to the gateway send a ping message every time when this amount
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of time has passed. For more information, see MQTT-SN Spec v1.2, section
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5.4.4. For default values, see section 7.2 -> TWAIT: > 5 min. Default
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value is 360 seconds which corresponds to 6 minutes.
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config EMCUTE_T_RETRY
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int "Retry timer in seconds"
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range 10 15
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default 15
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help
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Configure re-send interval used for timing the retry messages which are
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sent when the expected reply from GW is not received. The retry timer is
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started by the client when the message is sent and stopped when the
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expected reply from GW is received. If the timer times out and the
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expected GW’s reply is not received, the client retransmits the message.
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For more information, see MQTT-SN Spec v1.2, section 6.13. For default
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values, see section 7.2 -> Tretry: 10 to 15 sec.
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config EMCUTE_N_RETRY
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int "Maximum number of retransmissions"
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range 3 5
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default 3
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help
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Configure 'CONFIG_EMCUTE_N_RETRY',the maximum number of retransmissions
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in the event that the retry timer times out. After
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'CONFIG_EMCUTE_N_RETRY' number of retransmissions, the client aborts the
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procedure and assumes that its MQTT-SN connection to the gateway is
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disconnected. For more information, see MQTT-SN Spec v1.2, section 6.13.
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For default values, see section 7.2 -> Nretry: 3-5.
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endif # KCONFIG_USEMODULE_EMCUTE
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