Phase 6.1: TCP half-close (FinWait/CloseWait/LastAck) + LAST_ACK reaping#76

Merged

dpsoft merged 9 commits intomainfrom

phase6.1-half-close-rebased

May 6, 2026

Commits on May 6, 2026

docs: Phase 6.1 detailed TDD plan — TCP half-close
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test(network): pin tcp_half_close_guest_writes_first (BROKEN_ON_PURPOSE)
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feat(slirp): FinWait1 → LastAck and Established → CloseWait on host EOF
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test(network): pin tcp_half_close_host_writes_first
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feat(slirp): LAST_ACK_TIMEOUT reaping prevents LastAck entry leak
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test(network): pin tcp_last_ack_timeout_reaps_stale_entry (bench-helpers)
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refactor(slirp): drop allow(dead_code) on TcpNatState; remove unused FinWait2
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fix(slirp): drop duplicate bind + init flow_token in lastack helper
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fix(slirp): doc-link to bench-helpers method via Self::
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