utun2

Commit Graph

Author	SHA1	Message	Date
Evgeny	803387f2b4	router close_all_for_node: integrate with BGP remove_conn, fail fast on no route, stop PAUSE cycle - route_bgp_remove_conn: call etcp_router_conn_close_all_for_node() when node loses all paths - etcp_route_send: check BGP route before creating conn (return -1 early, no conn leak) - remote_proxy: check rp_send_msg return value, close conn on error to break PAUSE↔FLUSH cycle	4 months ago
Evgeny	21cfe2d381	etcp_router: remove legacy, auto-conn for all services, send_q inflight control, remove tcp_proxy internal seq - All SVC_ROUTE traffic now auto-creates ETCP_ROUTER_CONN, no legacy path - etcp_route_send: auto-conn + seq + inflight check → send_q if full - Inflight control via send_q: queue instead of drop, drain on ACK, retry timer 50ms - router_send_one(): unified SVC_ROUTE wrapper with seq assignment - router_deliver/try_assembly: pass real ETCP_CONN* to handlers (NAT needs it) - tcp_proxy: remove internal 16-bit seq (send_seq/recv_last_seq/recv_init), shrink HDR 8→6 - remote_proxy: same seq removal, HDR/constants adjusted - conn init/close/destroy: manage send_q, send_resume_timer lifecycle - test_etcp_router_unit: −legacy, +send_q inflight test (18 tests)	4 months ago
Evgeny	0f0857c22a	add non-blocking send with EAGAIN+retry timer, normalizer flow control on recv, remove client-side send_buf buffering	4 months ago
Evgeny	9d4c5b00f4	fix: stop forwarding after CLOSE, send CLOSE for non-existent conn in proxy data handlers	4 months ago
Evgeny	e5d11ef9c1	refactor tcp_proxy: remove local socket mode, simplify architecture - remove sock_transport, transport abstraction, active connections API - simplify proxy_conn to 13 fields (was 15), remove tcp_proxy_mapping linked list - new protocol: stream_id 4B, seq 2B cyclic, HDR_SIZE 8B - add ERROR subcmd for immediate abort, CLOSE for graceful half-close - proper half-close: shutdown SHUT_WR, keep reading, no timer - exhaustive DEBUG_ERROR/WARN on all error/unusual branches - config parser: report unknown options with filename:line and valid keys	4 months ago
Evgeny	616986457f	add DEBUG_ERROR in all silent proxy error paths: NULL checks, alloc fails, transport send fail, data drop	4 months ago
Evgeny	10b9c93fcb	add SOCK:EVENT unified diagnostics on exit: NEW/CONN/SEND/RECV/CLOSE/TIMER with fd, stream, total count	4 months ago
Evgeny	ba03cab182	fix tcp_proxy connection lifecycle: closing_sent, destroy transport, shutdown+timer on exit - 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)	4 months ago
Evgeny	ca3215ab91	fix half_close: send CLOSE from proxy_poll_cb when no pending data, shutdown not close on exit	4 months ago
Evgeny	a02c474b94	fix use-after-free in queue_entry_free/dgram_free ordering + add tcp_proxy stress test + proxy diagnostics logging - Fix queue_entry_free before queue_dgram_free in all proxy files (UAF bug causing segfault) - Add PROXY/RP prefixed diagnostic logs for transparent proxy flow tracking - Add tcp_proxy integration test: real utun instances, ETCP, remote_proxy, DNAT routing - 7 test scenarios: basic_1mb, concurrent_5, concurrent_20, half_close, idle, conn_refused, stress (10 threads x 20 iterations) - stress_client.py with --verbose per-thread phase timing (connect/send/recv)	4 months ago
Evgeny	f18037ece2	add 16-bit seq to TCP proxy DATA for loss/duplicate detection	5 months ago
Evgeny	238fb0eb23	fix remote_proxy: cleanup socket on EOF/error/connect-fail to prevent infinite callback loop	5 months ago
Evgeny	a6311a17d0	add UDP/ICMP proxy, refactor tcp_proxy via_node to instance-level - 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	5 months ago
Evgeny	9869cf66f1	add etcp_router service routing layer + remote TCP proxy (uip+socket via router) 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)	5 months ago

14 Commits (congestion)