- proxy_recv_cb(p==NULL): tcp_recved(pcb,gap) before closing_tun
- proxy_feed_from_transport: stop when closing_sent
- proxy_poll_cb cleanup: free unsent before tcp_close
- proxy_try_close helper: shared between poll_cb (500ms) and recv_cb
- pending_out check: don't close if data still queued for exit
- Configs: traffic=info, tun=info for diagnostics
- Add closing_sent flag to proxy_conn (CLOSE sent to exit, no need to wait for reply)
- proxy_poll_cb: send CLOSE when done || sndbuf==0; cleanup when tun && (rem||sent)
- Destroy transport in proxy_poll_cb cleanup (fix 56-byte leak)
- remote_proxy_handle_close: shutdown(SHUT_WR) + 2s timer instead of immediate rp_conn_free
- Remove SHUTDOWN subcommand entirely (not needed with new lifecycle)
- proxy_recv_cb(p=NULL): now calls transport->close() to signal exit side
- Add PROXY FIN/CLOSE/CONNECTED/DATA/FEED/TCP_IN/TCP_OUT logs
- Add RP RECV/SEND/CLOSE logs on exit side
- Fix queue_dgram_free/queue_entry_free ordering (UAF) in all proxy files
- Change TRAFFIC logs from ERROR to INFO level
- Add 2 extra 1MB tests in run_test.sh to verify no post-stress stall
- stress_client.py: add --verbose per-thread timing (connect/send/recv ms)
- mem.c: zero freed memory for early UAF detection
- uasync_set_timeout(0): use FIFO immediate_queue instead of timeout_heap
to guarantee execution AFTER all currently-expired heap timers
- uasync_cancel_timeout: search immediate_queue for timeout=0 timers
- dummynet: start initial shaper with bandwidth-based delay instead of 0
(prevents queue from never filling up when packets arrive sequentially)
- test_dummynet: rename get_time_us -> now_us (conflict with u_async.h)
- test_u_async_comprehensive: fix immediate_timeouts, add timeout_ordering test
- UDP proxy: datagram relay client↔exit over ETCP
- ICMP proxy: echo ping relay client↔exit over ETCP
- Move via_node_id from per-forward-mapping to global tcp_proxy setting
- Support multiple concurrent tcp_proxy instances (no singleton g_tcp_proxy)
- Cap handshake padding to stay within 1472+overhead
- Handle non-TCP packets (UDP/ICMP) in tcp_proxy raw/tun input paths
- Add utun_instance_create_from_str() for test config creation
etcp_router: routable service packets with dst/src node_id
- etcp_router_bind/unbind: per-instance service handler registry
- etcp_route_send: send to node by id via BGP routing
- multi-hop forwarding through intermediate nodes
- loopback optimization (dst==self dispatches directly)
remote_proxy: exit node creating OS sockets on demand
- handles CONNECT/DATA/CLOSE via etcp_router
- non-blocking socket connect with uasync callbacks
- echo back response data to requesting node
tcp_proxy: etcp_transport for remote proxy
- via_node_id in mapping selects between sock/etcp transport
- unified handler for both tcp_proxy and remote_proxy roles
- config: forward = port -> ip:port via NODE_HEX [remote_proxy] section
tests: test_etcp_router (20 pkts bidirectional), test_remote_proxy (echo)
- etcp_conn_reset: cancel retrans_timer/ack_resp_timer via uasync_cancel_timeout
before nulling (was leaking timer handles, confirmed by 'Timer leak: diff')
- etcp_connections: cancel link->init_timer explicitly when link_state becomes 3
on both client and server INIT_RESPONSE paths (prevents spurious INIT after
connection is established that could trigger cascading reinits)
- etcp_connections: remove duplicate conn->session_id assignment in new conn path
(session_id is set later via conn_reinit flow)
- pkt_normalizer: resume output queue callback after pn_reset
- Add test_etcp_reconnect with reinit detection — monitors conn->reinit_count
and restarts data transfer if reinit occurs during active phase
- Add etcp_dump.c/h — ETCP connection state dump utility for debugging
Evgeny