Skip Large Messages

[256dpi]

If a client receives a message that is bigger than its receive buffer if will crash and return the error "LWMQTT_BUFFER_TOO_SHORT". For this library the better approach would be to just skip and log large messages.

[maglevize]

can we add the size for this buffer?

[Sisco21]

Hello, i had the same issue. Did you modified the behavior? Can we catch the error?

[mrdc]

@256dpi

Hello,
Nice feature to have - on large payloads device loses the connection to MQTT broker, so we have to protect it from this kind of possible attack.

[256dpi]

We should expose lwmqtt_drop_overflow to skip too large messages.

[256dpi]

Added in eae214b.