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Tree: 487cb8718e

bbr

chatgui

congestion

etcp-inflight-fix

feature/nodeinfo-routing

feature/x25519-migration

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nodeinfo-routing-update

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stcp

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utun2/doc

History

Evgeny 7f5325ac24 etcp_router: fix inflight underflow by splitting rx_acked into tx_acked + last_sent_ack_seq ... rx_acked was used for two conflicting purposes: 1. remote ack of our sends (inflight = tx_seq - rx_acked) 2. our last sent ACK seq (dedup: rx_seq != rx_acked) When the ack timer fired and set rx_acked = rx_seq, it overwrote the inflight-tracking value. If rx_seq > tx_seq, the computation tx_seq - rx_acked underflowed (e.g. 18 - 24 = 0xFFFFFFFA), permanently blocking router_drain_send_q and causing send_q to grow indefinitely. Fix: - Split rx_acked into tx_acked (remote ack, for inflight) and last_sent_ack_seq (our ACK, for dedup) - Incoming ACK handler only advances tx_acked forward (stale guard) - Use int32_t cast on all inflight comparisons to handle stale states - Add etcp_router architecture diagram (doc/etcp_router_arch.md)		4 months ago
..
etcp_arch.md	1	7 months ago
etcp_config.txt	Backup before route_lib.c refactoring	8 months ago
etcp_protocol.txt	update documentation	5 months ago
etcp_router_arch.md	etcp_router: fix inflight underflow by splitting rx_acked into tx_acked + last_sent_ack_seq	4 months ago
route_p2pconn.txt	update documentation	5 months ago