Open jberes-ae opened 2 years ago
same message MQTTException: 2
log from docker MQTT server eclipse-mosquitto(457fe4154880)
1639972746: New client connected from xxxx as mqtt-explorer-8c09a901 (p2, c1, k60).
1639972796: New connection from xxxx on port 1883.
1639972796: New client connected from xxxx as ESP8266Client1 (p2, c1, k0).
1639972796: Bad socket read/write on client ESP8266Client1: Invalid arguments provided.
rollback to 2.0.11 work fine
1639973149: New connection from xxxx on port 1883.
1639973149: New client connected from xxxx as ESP8266Client1 (p2, c1, k0).
by compare another client, seems new version can not just set keep alive to 0
so change msg = bytearray(b"\x04MQTT\x04\x02\0\0") to msg = bytearray(b"\x04MQTT\x04\x02\0
update:
just set non-zero \x3c
") #60s keep alivekeepalive
option to MQTTClient's constructor.
tested 2.0.12 and latest
Hi there,
the issue you might be observing here has been reported and discussed at #445 and https://github.com/hiveeyes/terkin-datalogger/pull/97 already. In this context, please be aware of CVE-2020-13849, which is the main reason for this change in Mosquitto 2.0.12:
- Fix `max_keepalive` not applying to MQTT v3.1.1 and v3.1 connections.
These clients are now rejected if their keepalive value exceeds
max_keepalive. This option allows CVE-2020-13849, which is for the MQTT
v3.1.1 protocol itself rather than an implementation, to be addressed.
Now, Mosquitto 2.0.13 adds the possibility for max_keepalive
to be set to 0
with https://github.com/eclipse/mosquitto/commit/d942ed7ee, if you really need it.
With kind regards, Andreas.
Dear @chouex,
so change msg = bytearray(b"\x04MQTT\x04\x02\0\0") to msg = bytearray(b"\x04MQTT\x04\x02\0\x3c") #60s keep alive
There is no need to manipulate this on a binary/bytes level. There is already the keepalive
option as a parameter to MQTTClient
's constructor. You can easily pass a custom value from your application code, or adjust the default value of the library like https://github.com/daq-tools/pycopy-lib/commit/fe68f4186.
With kind regards, Andreas.
Dear @amotl,
World you consider set keepalive value deafault to non-zero? I beleive many people like me just want to try the example and run into issue immediately. It is better if default setting work.
As I see on screenshot from @jberes-ae - your mosquito running in local mode, it listen only on localhost. You need to add listener 1883 0.0.0.0
into your mosquitto.conf
I am trying to run a demo program for Digi Xbee cellular modem to publish and subscribe MQTT packets.
Any insights to resolving would be greatly appreciated. Thank you.