fix decoding of packet numbers in different packet number spaces #2903
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Codecov Report
@@ Coverage Diff @@
## master #2903 +/- ##
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+ Coverage 85.77% 85.82% +0.04%
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Files 133 133
Lines 9187 9216 +29
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+ Hits 7880 7909 +29
Misses 959 959
Partials 348 348
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When QUIC abandoned the "stream 0" design, it introduced separate packet number spaces for packets with different encryption levels. Packet number compression now also works per packet number space. The current code doesn't lead to any problems if the peer starts sending with packet number 0, as we only exchange a few packets in the Initial and the Handshake packet number space and there's nothing to compress. It might lead to problems if the peer starts with a large packet number in one space (which is allowed by the spec), and then starts with a small packet number in another packet number space.
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mvdan
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Dec 3, 2020
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Fixes #2902.
This would also justify a new release.