utun2

Commit Graph

Author	SHA1	Message	Date
evgeny	123b47c612	Improve Android VAD lifecycle, audio settings and diagnostics	3 weeks ago
evgeny	20a1211e09	Add GPLv3 licensing and bundle third-party notices	3 weeks ago
evgeny	a97e8bcc1f	docs: update file inventory and module header contracts Refresh both AGENTS guides and clarify module purpose, usage, ownership, threading, return values and wire formats in headers. Remove the unused timeout_heap freed_count field and unimplemented getter.	3 weeks ago
evgeny	a73ae13df4	lwip/proxy: trace PCB lifetime in debug category, drop old noisy debug	4 weeks ago
evgeny	265421eb96	tun proxy: фикс TCP-суммы (нечётный pbuf), FIN до дренажа to_lwip, tcp_bind/rexmit_fast/active_pcbs_changed + нагрузочный burst-тест	4 weeks ago
evgeny	a20d73d2be	proxy/tun: добавить DEBUG-логи диагностики застревания keep-alive (lwIP IN/OUT/RECVED/RTO/PERSIST + per-conn DIAG)	4 weeks ago
evgeny	38c9f229bc	stcp: ed25519 pubkey exchange in handshake, fix instance destroy segfault, fix chat_tcp_test - u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll - stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close - utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP), add deferred drain in both Phase J and L - stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39, exchange ed25519_pubkey in both handshake directions - etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb - chat_sync.c: fix lk->conn NULL dereference for TCP links - test_stcp.c: update stcp_server_create/stcp_client_connect callsites - tools/chat_tcp_test: change transport udp→tcp	3 months ago
evgeny	d773f1724a	refactor: STCP connections as ETCP links (is_tcp) - Add is_tcp, tcp_link, tcp_reconnect_* fields to ETCP_LINK - Remove transport_link from ETCP_CONN, add tcp_link_count - stcp_link: replace embedded etcp_conn with pointer; add etcp_link backpointer - stcp_link: link_rx_cb routes ETCP data to etcp_conn_input - stcp_link: call on_close_cb in close - New TCP functions: etcp_link_enter_ready_tcp, etcp_tcp_link_start_connect, etcp_tcp_link_start_reconnect, tcp_link_close_cb, etcp_tcp_send - etcp_link_new: handle NULL conn for TCP links; skip enter_init for TCP - etcp_link_close: close stcp_link for TCP - etcp_encrypt_send: redirect TCP to etcp_tcp_send (skips AES-CCM) - tcp_server_on_link: create ETCP_LINK(is_tcp=1) + enter_ready_tcp - etcp_connect: TCP addrs -> etcp_tcp_link_start_connect - Remove ctx->tcp_link/tcp_ready - test_stcp_traffic: find stcp_link via links->is_tcp instead of transport_link - 66/68 tests pass; 2 STCP tests expected to fail (integration not complete)	3 months ago
Evgeny	0381f4df89	Убраны TCP_TIMESTAMPS и TCP_KEEPALIVE из lwip_tcp_opts.h (не используются, конфликтовали с ws2ipdef.h на Windows)	3 months ago
Evgeny	1f4749a1b9	Убрал имена функций из DEBUG-сообщений (__FUNCTION__ уже добавляет) Оставлены метки-подсказки: NODEINFO, ACK_SEND, ETCP_SEND, DUMP, router, conn_mgr, db_sync, probe, ctrl_out, socks_proxy и т.д.	4 months ago
Evgeny	797c0736a7	headers: add extern "C" guards for C++ interop (chatgui) Added #ifdef __cplusplus / extern "C" { ... } / #endif to ~65 headers in src/ and lib/, enabling the C library to be linked into C++ code (chatgui). Fixed packet_dump.h (added missing header guard) and etcp_bbr.h (#pragma once guard).	4 months ago
jeka	7139969acd	fix: Windows/MSYS2 build compatibility - proxy/icmp_proxy.c: define struct icmp/ip + ICMP constants for _WIN32 - lwip_tcp_priv.h: use #include <winsock2.h> instead of #define htonl/htons - lwip_tcp.h/c: rename poll field to pollfn (avoid WSAPoll macro conflict) - tests: guard Unix-only headers with #ifndef _WIN32, skip fork/socketpair tests	4 months ago
Evgeny	075c4f4583	memory_pool: name field — идентификация пула в диагностике коррапшна	5 months ago
Evgeny	e55c4ec7ce	bugfixes	5 months ago
Evgeny	3217f744f9	memory_pool_is_freed + стратегические проверки на висячие указатели memory_pool: memory_pool_is_freed(pool,obj) — поиск obj в free-списке tw_pcbs (3 места): !ctx→halt и is_freed→halt в начале итерации — ловит висячий PCB до re-alloc и после re-alloc etcp: is_freed→halt перед etcp_conn_input (caller + callee) — ловит pkt освобождённый до входа tcp_alloc: убран старый скан tw_pcbs (заменён на is_freed) все dangling проверки — halt (while(1)) вместо break/return	5 months ago
Evgeny	24a5de9398	memory_pool: канарейка (0xAA) + счётчик double-free; lwip_tcp: убраны TCP_TW_MAX/tw_iter, добавлен хук в tcp_alloc memory_pool: +2 байта за объектом — canary 0xAA для детекции buffer overflow, counter для детекции double-free. При free проверяется canary и counter==0, при alloc выставляется новый counter. lwip_tcp: убраны TCP_TW_MAX и счётчики tw_iter (толку нет, краш на 2й итерации). Оставлены: !pcb->ctx (dangling pointer), self-loop checks, next_owner диагностика. Добавлена проверка в tcp_alloc: если новый PCB найден в tw_pcbs → halt.	5 months ago
Evgeny	a09c647dfd	lwip_tcp: детект и защита от self-loop (pcb->next==pcb) в tw_pcbs tcp_slowtmr: после tcp_free проверка pcb==pcb2 → ctx->tw_pcbs=NULL, break tcp_kill_timewait: проверка inactive->next==inactive → ctx->tw_pcbs=NULL, tcp_free lwip_tcp_input: проверка pcb->next==pcb перед tcp_timewait_input → tcp_abort все 3 лога выводят next_owner для диагностики источника self-ссылки	5 months ago
Evgeny	11002bcb57	lwip_tcp: защита от зацикливания tw_pcbs + next_owner диагностика + таймауты + фикс RTO - TCP_TW_MAX=256: циклозащита в for/while циклах tw_pcbs (input, slowtmr, kill_timewait) + TCP_RMV макрос тоже защищён от бесконечного поиска - next_owner в struct tcp_pcb/tcp_pcb_listen: отслеживает кто правил pcb->next (REG=1, RMV=2, SLOWTMR=3, INPUT=4). memset при alloc обнуляет - таймауты: FIN_WAIT 20s→6s, SYN_RCVD 20s→6s, MSL 60s→25s (TIME_WAIT=50s) - tcp_alloc: RTO из ctx->rto_min_ms вместо хардкода 3000 - handle_fin: pcb_state в лог	5 months ago
Evgeny	58e45e9232	proxy: implement CLOSE and FIN relay protocol - CLOSE: admin connection teardown (drain queues, shutdown, free) Server: handle_close — pause read, drain rq (discard), drain wq to socket, shutdown, free Client: handle_close — drain to_lwip/tx_buf (discard), tcp_close pcb, free ERROR calls handle_close on both sides - FIN: transparent relay event through ETCP (TCP_PROXY_SUBCMD_FIN=0x06) Server: on_fin_cb relays FIN_MSG to client, on_flushed_cb relays FIN_MSG Server: handle_fin relays FIN to remote socket via shutdown(SHUT_WR) Client: recv_cb relays FIN_MSG to exit, tx_waiter_cb relays FIN_MSG Client: handle_fin relays FIN to local TCP via tcp_shutdown(pcb,0,1) - new tcp_conn_pause_read() in tcp_io (EPOLLIN off + cancel waiter) - poll_cb simplified: remove tun_closed&&rem_closed wait block - conn_free drains close_pending before free on both sides - handle_data WARN→INFO for drops after close - tcp_shutdown declared in lwip_tcp.h	5 months ago
Evgeny	8d0c40195b	tcp proxy/lwip: move per-packet traffic logs from INFO/ERROR to TRACE	5 months ago
Evgeny	1f4fe37fe5	proxy: rename + simplify + backpressure - tcp_proxy/remote_proxy → tcp_proxy_client/tcp_proxy_server - Все proxy файлы перенесены в src/proxy/ - Конфиг: [tcp_proxy]→[tcp_proxy_client], [remote_proxy]→[tcp_proxy_server] - Убран subcmd CONNECTED (0x02) — клиент шлёт DATA сразу после CONNECT - Backpressure: etcp_router_waiter_register/cancel через ll_queue threshold waiter - Клиент: recv_cb send fail → tx_buf+waiter, не tcp_recved() (окно lwIP=0) - Сервер: read_cb send fail → pause_buf+waiter, пауза read_id - CLOSE/ERROR отправляется только после drain всех очередей - Fail: conn не найден/closed → send ERROR вместо CLOSE/silent drop - PROTOCOL.md: полная архитектура с диаграммами состояний и потоков	5 months ago
Evgeny	7c668b5d6c	add lwIP state diagnostics: tcp_alloc cwnd/sndbuf, proxy_poll_cb cwnd/unsent/unacked, active_pcbs counter	5 months ago
Evgeny	2144eea46f	fix compiler warnings: C23 label+declaration, uint16_t overflow check	5 months ago
Evgeny	7c71ef683c	add lwIP TCP stack test with fixes: rcv_wnd tracking, FIN compensation, tmr_phase dual-counter, trace ring buffer, stats counters	5 months ago
Evgeny	f1bd65f450	fix lwIP TCP checksums on LE: remove htons from pseudo-header sum, add htons to return values	5 months ago
Evgeny	f85f2f20fb	fix tcp_pseudo_checksum: add ntohs() to correctly extract 16-bit IP halfwords from NBO on LE	5 months ago
Evgeny	d00996243d	fix lwip_tcp_priv.h: use #ifndef _WIN32 for arpa/inet.h (FreeBSD compat)	5 months ago
Evgeny	ad8bc0ae00	fix lwip_tcp port byte order (double-htons), mapping lookup, socket error handling - Fix port encoding: PCB stores ports in host byte order, tcp_create_segment uses htons - Fix tcp_bind/tcp_connect: ntohs incoming network-order ports - Fix demux comparisons: use host-order sport/dport statics instead of in-place ntohs - Fix tcp_output_alloc_header_common: htons for port output - Add static sport/dport variables (host byte order) to avoid tcphdr corruption - Fix sock_transport_error_callback: handle EPOLLERR during non-blocking connect - Fix mapping local_port: store host-order port for find_mapping_by_port - Fix tcp_proxy_raw_read/tun_input: use IP total length for packet boundaries - test_tcp_proxy: reduce size to 2KB, fix port, add debug_init, add echo server log - test_tcp_proxy handshake and basic data flow now working (known: cwnd/poll throughput tuning needed)	5 months ago
Evgeny	c05e1c9991	replace uIP with adapted lwIP TCP stack (lwip_tcp) - Replace uIP (src/uip/) with adapted lwIP 2.1.x TCP module - Remove original src/lwip/ (replaced by src/lwip_tcp/) - New src/lwip_tcp/ module: lwip_pbuf, lwip_tcp core/in/out - Full TCP state machine, sliding window, congestion control - Fast retransmit/recovery, Van Jacobson RTT estimation - Nagle algorithm (TF_NODELAY), delayed ACK - OOSEQ reassembly, TIME-WAIT handling - Memory: memory_pool for PCB, listen PCB, tcp_seg - Timers: uasync periodic timer drives fast/slow timers - Output: callback-based IP packet output (TUN/raw-fd) - Error codes: LERR_ prefix to avoid conflicts - pbuf: simplified PBUF_RAM with proper header space reservation - Integrate into tcp_proxy.c/h with per-pcb callbacks - Active connection API: struct proxy_conn* instead of int conn_idx - Makefile: remove uip, add lwip_tcp files - test_tcp_proxy updated for new API; test_tcp_proxy_remote disabled - Known: test_tcp_proxy data transfer needs flow tuning (WIP)	6 months ago

29 Commits (efdfb1d8357e166983e3a06cfe78de3ffa353100)