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udpnat: fix session retirement and packet cleanup - #111

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svlavr wants to merge 8 commits into
SagerNet:devfrom
svlavr:codex/udpnat-complete
Open

svlavr wants to merge 8 commits into
SagerNet:devfrom
svlavr:codex/udpnat-complete

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@svlavr

@svlavr svlavr commented Sep 23, 2026

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A retired UDP handler can delete a replacement association with the same key. I fixed this with identity-checked removal. The patch also makes queue shutdown and buffer cleanup safe, preserves source rebinding, and reports short packet copies.

The retirement regression fails on unmodified dev and passes with the patch. Targeted race tests and vet pass. The full Windows suite is not green: three winiphlpapi tests failed with local socket permission errors.

@nekohasekai
nekohasekai force-pushed the dev branch 3 times, most recently from 1b97886 to 6f21f24 Compare September 29, 2026 15:05
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