utun2

Commit Graph

Author	SHA1	Message	Date
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)	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	9b59415f83	add tcp_proxy and remote_proxy sections to sample config	5 months ago
Evgeny	17e95cc2a3	fix remaining pointer-sign warnings in sc_set_peer_public_key callers	5 months ago
Evgeny	68f4ae12c8	fix all compiler warnings: array-bool, pointer-sign, tautological, unsequenced	5 months ago
Evgeny	a0e5446790	migrate NAT and DATA to etcp_router, fix warnings and destroy order	5 months ago
Evgeny	2611a05d81	revert unnecessary return -1 in void-test ASSERT macros; only test_bgp_route_exchange uses ASSERT in int main()	5 months ago
Evgeny	fcb6a59ca9	fix ASSERT macros: return -1 instead of bare return in int main() (FreeBSD -Wreturn-mismatch)	5 months ago
Evgeny	075d97a459	fix .gitignore: stop ignoring test_*.c source files; add missing test_ipv6_sockets, test_tcp_proxy, test_radix, test_route6_lib sources	5 months ago
Evgeny	c24a6367cc	add IPv6 default route interface auto-detection for permanent/temporary IPv6 without netif - get_default_route_netif_index(): UDP connect trick + getifaddrs to find default route iface - etcp_socket_add(): auto-detect netif_index when not specified in config - queue_new() API: explicit index_offset/index_size params instead of implicit from hash_size - radix: cleanup types (uint8_t*), replace bzero/bcmp with memset/memcmp, remove kernel ifdefs - route6_lib: new IPv6 routing library + get_node_v6_routes()	5 months ago
Charlie Root	e1f051856f	radix	5 months ago
Evgeny	2565e8d008	add uIP TCP/IP stack (minimal — only files needed for tcp_proxy build)	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
Evgeny	5e834b519f	mass_update: log all sessions to files, terminal output only for errors	5 months ago
Evgeny	171e70a810	add inflight data return to normalizer on reinit + configurable inflight min/max limits + test	5 months ago
Evgeny	dea3a39598	fix: reconnect test — cancel timers in conn_reset, add init_timer cancel on link_state=3, add reinit resilience to test - 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	5 months ago
Evgeny	0f8df44b2b	build: out-of-tree VPATH build, tests run once with colored timing - Root Makefile: hand-written bootstrap delegating to build/ - Makefile.am: simplified to SUBDIRS + clean-local - build.sh: delegates to make, autoreconf only - tests: removed duplicate TESTS run, added colored [PASS]/[FAIL]/[SKIP] with timing - .gitignore: added /build/ for out-of-tree artifacts Result: 0 .o files in source dirs, 29/29 tests pass	5 months ago
Evgeny	d0d4199273	etcp: unified send hook via etcp_udp_send, remove loss_rate, add dummynet_filter inline mode, rewrite BGP test - Add etcp_udp_send_fn_t hook typedef, send_hook/send_hook_ctx fields to ETCP_LINK - Implement etcp_udp_send() wrapper — all UDP sends go through one point - Remove loss_rate from ETCP_SOCKET, CFG_SERVER, config parser, send path - Add dummynet_filter: inline send-hook with loss/delay, no proxy socket needed - Rewrite test_bgp_route_exchange: 3-node chain A(2 links)↔B↔C, 7 phases with dummynet_filter-based link failure/recovery simulation - Clean up tests: remove skeleton test_routing_mesh, 6 debug/stale test files - Refactor test_etcp_simple_traffic and test_pkt_normalizer_etcp (remove debug spam) - Fix test_etcp_two_instances: remove private field access, fix false PASS on timeout	5 months ago
Evgeny	e7c32d9ac1	1	5 months ago
Evgeny	7d03749522	1	5 months ago
Evgeny	61fee27478	congestion: burst-based BW measurement + adaptive inflight (slow start/cong avoidance/loss response) New features: - get_time_us() in lib/u_async.c/h for µs-precision timing - Burst measurement (ETCP_SECTION_MEAS_TS 0x07, MEAS_RESP 0x08, FILLER 0x09) - 12 MTU packets sent at line rate, receiver measures inter-packet gaps - Burst triggered when link saturated + min 500ms interval - Result: measured BW -> bandwidth for shaper, burst_target_bdp for window cap - 3-phase adaptive inflight in link_stats_timer_cb: - Slow start: windows doubles each RTT, exits on loss/RTT spike/threshold - Congestion avoidance: additive increase, proportional RTT shrink, multiplicative loss shrink - Burst target cap: inflight_lim <= burst_target_bdp * 1.1 - Dynamic optimal_inflight = sum(link->inflight_lim_bytes), recalculated on change - Adaptive win_timebase = rtt/2 (was hardcoded 10ms) Fixes: - dummynet.c: shaper formula fixed (80000 -> 80) - dummynet.c: queue_data_put call fixed (3 args -> 2) - etcp.c: SIZE ERROR format string (missing log_name argument) - etcp_request_pkt: FILLER leaves room for PAYLOAD overhead Tests: - test_etcp_congestion.c: single-threaded, 5-phase BW/delay/loss test - sender + receiver + dummynet in one uasync - CSV metrics output every 100ms - All 29 existing tests pass	5 months ago
Evgeny	edfe665837	log: move individual ping logs from INFO/TRACE to DEBUG level	5 months ago
Evgeny	6c057ca89a	fix BGP: delay up_cbk until connection initialized, fix send_table_request leak	5 months ago
Evgeny	a356eedc0d	cleanup BGP/connection logging - Consolidate on_up/on_down to single INFO line with peer_id - Remove DEBUG_CATEGORY_DEBUG duplications from route_bgp.c - NODEINFO: inline lightweight dump (no malloc), verbose log -> DEBUG - NAT_INFO: remove hex dump duplications, single clean INFO line - Send NODEINFO per-recipient: INFO->DEBUG_DEBUG - Per-ping callbacks: INFO->DEBUG_TRACE - Per-packet traffic direction: INFO->DEBUG_TRACE - route_insert/delete: use node_id instead of pointer - Add cancel_all log, add_to_senders conn name - send_full_table: ERROR->WARN for consistency checks - is_local_subnet: DEBUG->TRACE - Fix etcp_send_ping BGP category	5 months ago
Evgeny	227a1aafad	cleanup debug logging	5 months ago
Evgeny	048d1c18b1	fix: restore lost if(changed) block in update_my_nodeinfo + add debug warnings	5 months ago
Evgeny	bbebc74bdb	fix etcpmon keyboard: move Tab/Enter/Esc from WndProc to message loop pre-translate	5 months ago
Evgeny	973c00e544	add etcpmon keyboard navigation: Tab between Server/Port, Enter=Connect, Esc=Disconnect	5 months ago
Evgeny	fb76b4252f	fix etcpmon: stray brace in nat_type_to_string, add pipefail to build scripts	5 months ago
Evgeny	456d274e12	fix mass_update: remove git remote http->https rewrite (port 443 blocked on remotes)	5 months ago
Evgeny	c391d497b4	fix mass_update: skip tests build, fix git http redirect, speed up deploy	5 months ago
Evgeny	4e040b2891	fix mass_update: add pipefail so make errors stop the update script	5 months ago
Evgeny	f6ef38aa5d	update documentation	5 months ago
Evgeny	9c509d4c86	add connectivity probing + NAT type rename OPEN->EIM, RESTRICTED->STRICT - Rename NAT types: OPEN->EIM, RESTRICTED->STRICT across all code - Add flat addr list {type,ip,port,socket_id} to NODEINFO (NODEINFO_IPV4_ADDR) - Add NODEINFO_IPV4_SOCKET_META for per-socket metadata - Add NODE_CONNECTIVITY with per-type probe status and min_rtt - New module: route_connectivity.c/h (probing engine with socket fallback) - STRICT verified addresses excluded from NODEINFO broadcast - Trigger probing on new/updated BGP node, cancel on remove/withdraw - Update NAT type names in etcpmon GUI	5 months ago
Evgeny	39544e6b2b	Fix: Add bounds/mtu checks, underflow protection and null deref fix for ETCP robustness	5 months ago
Evgeny	2fadec947b	Fix: Split multi-var init and rename s_net/d_net to src_net/dst_net to avoid MSYS2 S_un macro conflict	5 months ago
Evgeny	595d2b177b	Refactor: Replace custom tc_hton/tc_ntoh with standard htobe16/be16toh/htobe32/be32toh, move htobe16/be16toh to platform_compat.h	5 months ago
Evgeny	69b49d424b	Fix: Include platform_compat.h before winsock2.h in debug_config.h so tc_htonl/tc_htons macros are defined first	5 months ago
Evgeny	6284a95267	Fix: Define tc_htonl/tc_htons as macros before winsock2.h to avoid struct-in_addr redefinition	5 months ago
Evgeny	8cb05da11c	Fix: Add forward declaration of struct UTUN_INSTANCE in route_node.h	5 months ago
Evgeny	aafa0cfcab	Fix: Add portable tc_htonl/tc_htons/tc_ntohl/tc_ntohs macros, replace winsock2-incompatible hton/nto in NAT test files	5 months ago
Evgeny	3dd8fa4085	Fix: Remove arpa/inet.h from test_nat_stress.c and test_nat_transport.c, use platform_compat.h for byte-order funcs	5 months ago
Evgeny	ba30f2adc6	Fix: Remove arpa/inet.h from test_nat_engine.c, use platform_compat.h for byte-order funcs	5 months ago
Evgeny	907ef244c6	NAT: Full Cone (EIM) NAT with ETCP_ID_NAT protocol, per-node routing, and comprehensive test suite - New ETCP protocol ETCP_ID_NAT (0x02) for NAT traffic between nodes - eim_nat.c/h: Pure NAT engine (table, port allocation, checksum updates, egress/ingress) - nat_transport.c/h: Transport layer (NAT TUN, ETCP binding, client/provider roles) - route_bgp_find_conn_for_node(): shared utility for optimal connection lookup - tun_init_nat(): dedicated TUN creation for NAT - Config: [nat] section with tun_ip, port_start/end, nat_via, forward rules - Fix: csum_update_ip/transport use htonl() halves (correct on LE systems) - Fix: IP_FRAG_MF_MASK changed to 0x2000 (after ntohs, MF is bit 13) - Tests: 26 engine unit + 4 transport integration + 7 stress (29 total)	5 months ago
Evgeny	b7da11c2bf	Crypto: Refactored ETCP header size calculations with offsetof-based defines, increased CCM tag to 16 bytes	5 months ago
Evgeny	a66edb8f5f	Crypto: Added SHA256-based KDF for session key derivation from ECDH shared secret	5 months ago
Evgeny	11d511797a	Fix compiler warnings: remove incorrect address-of operator and add getpid for Windows - etcp_connections.c:1142: remove & before addr in sockaddr_storage_to_str call - test_etcp_simple_traffic.c: add #include <process.h> and #define getpid _getpid for Windows	5 months ago
Evgeny	45a181370f	Add htobe32/be32toh macros for Windows build	5 months ago
Evgeny	27df3355f1	Fix getmyip.h Windows build: use winsock2.h instead of sys/socket.h	5 months ago
Evgeny	e0ce9fefc3	Fix allowed_keys check to only apply to ETCP_INIT packets, not PING/PONG The allowed_keys authorization was incorrectly checking all INIT-decrypted packets including PING/PONG. Moved the check after packet type validation so it only applies to ETCP_INIT_REQUEST/NOINIT (incoming connection requests). Fixes test_etcp_ping and test_nat_detection failures.	5 months ago

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641 Commits (c05e1c9991e2b016affd62ad6fdc0488998717b0) All Branches Search

641 Commits (c05e1c9991e2b016affd62ad6fdc0488998717b0)

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