evgeny
7c473dd500
Reject signed NAT forward IDs hidden by leading whitespace
2026-10-21 23:11:32 +02:00
evgeny
dea768c21a
Hold outgoing NAT mappings through asynchronous TUN delivery
2026-10-21 22:52:19 +02:00
evgeny
41a68b86bc
Close NAT channels after cancelling producers and quiet transient TUN backpressure
2026-10-21 22:43:54 +02:00
evgeny
cfc0051088
Test NAT boundary validation, hash collisions, expiry and allocation failures
2026-10-21 22:34:06 +02:00
evgeny
9d6d6454b0
Reject malformed NAT configuration and use mapping lifecycle APIs in tests
2026-10-21 22:27:16 +02:00
evgeny
909005c1a4
Complete standalone NAT forward configuration fixture
2026-10-21 21:57:23 +02:00
evgeny
ddc163a2b7
Cover NAT forward owners, full port range and invalid rules
2026-10-21 21:56:20 +02:00
evgeny
ca471d777e
Route static NAT forwards to explicit owners on all ports
2026-10-21 21:55:13 +02:00
evgeny
3d0c4ff0a5
Isolate NAT mappings by source node identity
2026-10-21 21:53:17 +02:00
evgeny
a9820bea42
Preserve IPv4 UDP checksum encoding through NAT
2026-10-21 21:51:49 +02:00
evgeny
52a73ea6a7
Correct incremental NAT checksum arithmetic
2026-10-21 21:50:59 +02:00
evgeny
6e9bacd843
Fix NAT flow lookup at the maximum port boundary
2026-10-21 21:48:28 +02:00
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
2026-08-07 00:48:27 +03:00
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)
2026-08-06 22:14:32 +03:00
Evgeny
fcf3fb7f51
refactor: move transport (etcp/stcp/normalizer) to transport_layer/, routing (bgp/pings/topo*) to routing_layer/
2026-07-21 20:25:41 +03:00
Evgeny
2611a05d81
revert unnecessary return -1 in void-test ASSERT macros; only test_bgp_route_exchange uses ASSERT in int main()
2026-05-10 00:49:46 +03:00
Evgeny
fcb6a59ca9
fix ASSERT macros: return -1 instead of bare return in int main() (FreeBSD -Wreturn-mismatch)
2026-05-10 00:44:59 +03:00
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
2026-04-25 01:21:38 +03:00
Evgeny
595d2b177b
Refactor: Replace custom tc_hton*/tc_ntoh* with standard htobe16/be16toh/htobe32/be32toh, move htobe16/be16toh to platform_compat.h
2026-04-25 01:16:09 +03:00
Evgeny
aafa0cfcab
Fix: Add portable tc_htonl/tc_htons/tc_ntohl/tc_ntohs macros, replace winsock2-incompatible hton*/nto* in NAT test files
2026-04-25 00:52:33 +03:00
Evgeny
ba30f2adc6
Fix: Remove arpa/inet.h from test_nat_engine.c, use platform_compat.h for byte-order funcs
2026-04-25 00:48:40 +03:00
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)
2026-04-25 00:43:25 +03:00
evgeny