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[lwip-devel] [bug #61558] Possibly faulty behaviour on receiving large p

From: Simon Goldschmidt
Subject: [lwip-devel] [bug #61558] Possibly faulty behaviour on receiving large payloads with mqtt+tls causing disconnect
Date: Fri, 26 Nov 2021 09:13:00 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:94.0) Gecko/20100101 Firefox/94.0

Follow-up Comment #4, bug #61558 (project lwip):

Ah, ok, I think I may know what's happening: First, the MQTT header is passed
in one RX callback and only after that, a 2nd callback is made with only MQTT
data (because the header has been passed in already, but in a separate call).
Is this what you see?

If so, the mqtt app should be fixed because it's perfectly valid for TCP (as a
streaming protocol, as opposed to UDP as a packet based protocol) to split the
stream into separate packets.

BTW, you might want to update to a newere version if you're really still using
2.1.0! There have been multiple fixes since then!


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