lib: defer collecting streams when ack'ing empty frames #742
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When processing ACK frames, quiche collects streams if the conditions are suitable. Previously, endpoints exchanging 0-length STREAM frames could confuse things, causing the stream to be collected while still readable(). Applications that attempted to call stream_recv() would encounter a InvalidStreamState error. This change adds a check for is_readable() to the ACK processing, and a test case to demonstrate the sequence of events that previously triggered the error.
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@LPardue thanks a lot! |
ghedo
approved these changes
Nov 23, 2020
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When processing ACK frames, quiche collects streams if the conditions
are suitable. Previously, endpoints exchanging 0-length STREAM frames
could confuse things, causing the stream to be collected while still
readable(). Applications that attempted to call stream_recv() would
encounter a InvalidStreamState error.
This change adds a check for is_readable() to the ACK processing, and
a test case to demonstrate the sequence of events that previously
triggered the error.