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KKRainbowandGitHub
5477d4bca2
* fix(proxy): distinguish TCP flows sharing source ports Key TCP NAT entries by source and destination so connections sharing a source port can reach different targets independently. Allocate a unique translated source port for each flow and restore the original addresses and ports on the return path. Keep connection identity during accept and cleanup so a replaced flow cannot lose its new mapping. Give each smoltcp proxy mode its own listener port and retain the original destination for mapped subnets. Include regression coverage for SYN retries, concurrent insertion, stale cleanup, translated port wraparound and exhaustion, plus the recorded cross-platform and six-mode traffic validation. * fix(proxy): preserve half-closed streams and pending KCP accepts Propagate EOF to the opposite writer while keeping reverse traffic alive until both directions finish. This allows a server to reply after reading request EOF and a client to send after reading response EOF. Pin kcp-sys to b37ee660 for retained pending accepts, receive-buffer draining before EOF, early FIN handling, atomic state cleanup, and keepalives that start only after the handshake completes. Cover both shutdown directions, empty requests and buffered transfers in gateway tests and the TCP/KCP/QUIC kernel/smoltcp integration matrix. Include the half-close validation record and its remaining loss limits. * fix(proxy): enable backward-compatible KCP control recovery Pin kcp-sys to 26853356 and update both the root and OHOS workspace lockfiles. The dependency negotiates reliable control per connection while preserving legacy behavior when either endpoint lacks support. New peers recover lost handshake and FIN control packets, acknowledge FIN without closing the reverse writer, and retain bounded close state for duplicate packets. Queue saturation cannot block reliable stateless responses. Compatibility tests retain one historical baseline. Include the protocol design and validation records for deterministic loss, real old endpoints, three platforms, the full integration matrix, and proxy traffic. Preserve mixed-version failures and the documented minor scheduling issue rather than claiming legacy loss recovery. Validate the OHOS workspace with --locked: 12 library tests and the binding test build check pass, along with formatting.