evgeny
1ce285c09b
Preserve datagram bindings and verify optional ICMP behavior
2026-10-24 13:38:45 +02:00
evgeny
99be040488
Separate ICMP exit startup from shared context ownership
2026-10-24 13:23:58 +02:00
evgeny
268243feeb
Isolate datagram proxy state and replies between instances and peers
2026-09-29 03:58:14 +03:00
evgeny
518df33b0e
Fix UDP and ICMP packet construction at the TUN boundary
2026-09-29 03:56:55 +03:00
evgeny
b33caa56b8
uasync: pass socket name to all add_socket call sites
2026-09-20 01:13:38 +03:00
evgeny
2d04bf941b
etcp_router: вынести подпись/шифрование в route_crypto, одна функция отправки с флагами
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- route_crypto_encode/decode: автономный пред/пост-обработчик пакета
(encrypt-then-sign, стандартный Ed25519 вместо sc_stream_sign)
- одна функция отправки etcp_route_send/etcp_router_conn_send с bitmask mode
- формат доставки: [svc_id][src][dst][rx_flags][payload] (статус подписи/шифрования)
- ROUTER_INFLIGHT хранит финальный wire-пакет (чинит потерю подписи при ретрансмите)
- дедуп инициализации: router_conn_reset/free_queues
- учёт inflight через inflight_q count (seq присваивается на enqueue)
2026-09-05 17:40:43 +03:00
evgeny
f47ad7d87f
tcp_proxy: fix throughput (tx_queue backpressure) + connect timeout + integration test
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- Router: unified service delivery format [svc_id][src][dst][payload] (end-to-end src/dst from SVC_ROUTE header)
- tcp_proxy_client: replace single tx_buf drop-on-backpressure with bounded tx_queue + send_q waiter + retry timer (no data loss, bulk window reopen — removes 62.5ms delayed-ACK stall)
- tcp_io: configurable connect timeout (tcp_conn_set_connect_timeout)
- tcp_proxy_server: connect_timeout config option (ms, default 2000, 0=off)
- check.sh: run tcp_proxy_full integration test with sudo (skip if passwordless sudo unavailable)
- test_tcp_io: connect timeout unit test; docs (lwip_nuances.md)
2026-09-03 13:49:09 +03:00
evgeny
cf956cf2f0
add proxy server/client indicator (S/C) in connection monitor
2026-08-10 10:30:07 +03:00
Evgeny
869f7c60d5
debug: add PROXY category, move all proxy logs to it
2026-08-09 16:31:21 +03:00
evgeny
38c9f229bc
stcp: ed25519 pubkey exchange in handshake, fix instance destroy segfault, fix chat_tcp_test
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- 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
2026-08-07 00:48:27 +03:00
evgeny
d773f1724a
refactor: STCP connections as ETCP links (is_tcp)
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- 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)
2026-08-06 22:14:32 +03:00
Evgeny
852ce401e7
Добавлен group_id в etcp_router и topo_group, удалён msg_transport
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- etcp_router: SVC_ROUTE_HDR (+8B), ETCP_ROUTER_CONN/TRANSIT_QUEUE хеши расширены под group_id
- Все caller'ы (proxy, routing, conn_mgr, nat, chatgui, tests) обновлены
- topo_group: глобальный реестр TOPO_NODE по node_id, ref_count=0 при создании
- BGP-обмен активируется для всех групп (а не только дефолтной)
- Протокол: group_id добавлен в WITHDRAW/TABLE_REQ/TABLE_COMPLETE/ERR_GROUP_MISMATCH
- Per-connection коллбэки заменены на instance-level conn_status
- msg_transport полностью удалён из проекта
57/57 тестов
2026-07-22 15:51:03 +03:00
Evgeny
b9a31b9fba
proxy: fix Windows warnings - getsockopt cast, uasync_add_socket_t
2026-07-22 08:55:48 +03:00
jeka
7139969acd
fix: Windows/MSYS2 build compatibility
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- 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
2026-07-05 20:57:44 +03:00
Evgeny
0b5a710fe6
etcp_connect + BGP_READY callbacks + router reconnect test
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- etcp_connect.c: async connect API with EARLY/LATE/BGP_READY callbacks
- etcp_connect.h: declaration (via etcp_api.h)
- connect_deliver: fix to preserve unfired callback nodes
- etcp_set_routing_exchange_state: fires bgp_ready_cbk on TABLE_COMPLETE
- route_bgp: TABLE_COMPLETE handler + route_bgp_send_table_complete
- etcp.c: connections_count tracking, cleanup on close
- test_etcp_router_reconnect: a-b-c topology with b restart (etcp_connect)
- test_etcp_connect: unit tests for async connect API
- etcp_router: inflight/retrans/close improvements
- Various proxy/NAT/router cleanups
2026-07-04 18:51:01 +03:00
Evgeny
42d96f118d
fix: swap queue_entry_free/queue_dgram_free order in 27 places — prevents UAF when dgram_free accesses freed entry
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uasync: replace raw socket_node* handle with packed index — fixes UAF after socket_array realloc
tcp_io: defer u_free in tcp_conn_destroy via uasync_call_soon — prevents callback-chain UAF
tcp_io: guard read_cb/write_cb with NULL queue checks after deferred destroy
tcp_io: save read_queue to local before queue_data_put + NULL guard after
route_connectivity: linked-list probe_ctx — cancel all parallel probes before nq free
2026-07-02 17:14:38 +03:00
Evgeny
e765d62e43
etcp_route_send: add force parameter to bypass send_q limit for control messages
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CLOSE/ERROR/CONNECT and routing messages use force=1 to never be
dropped by backpressure. Regular DATA uses force=0 (default).
2026-06-04 12:01:55 +03:00
Evgeny
fceec1aea6
fix: move debug logs before async operations (queue_put, timer_set, resume) for meaningful log ordering
2026-06-02 21:53:51 +03:00
Evgeny
1f4fe37fe5
proxy: rename + simplify + backpressure
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- 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
2026-06-02 18:02:37 +03:00
evgeny