Ported only the fixes that actually apply to the pre-refactor base
(the handshake fixes 6eb7b36/d65af35 fix bugs the 0.3.1 multi-server
refactor introduced into the new outbounds/ostp.rs; the base bridge.rs
already waits for the handshake response with retransmit + NAT64
fallback, so they are intentionally skipped).
- EMFILE (922cf0b): rlimit::increase_nofile_limit at CLI startup.
- Logs (1151726): UoT connect/disconnect → debug; rate-limit the
unauthorized-probe log to one line / ~30s so a junk/probe flood can't
spam the log (and a client running junk-over-UDP can't self-ban).
- Helper lifecycle + bypass routes (b6e78c1):
* ostp-tun-helper forces std::process::exit(0) after run_server so the
WinTun adapter and its metric-0 default route are reclaimed instead
of lingering as a zombie that breaks the next connect.
* windows_route: delete_routes_for_dest() purges stale /32s, dedupe
bypass IPs, and log add failures at warn!.
* windows: retry tun::create through the transient ERROR_INVALID_
PARAMETER window and widen the adapter-index lookup to ~15s.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The core bug: server sent 5 TLS records in server_hello but client only
read the first one (ServerHello), then passed remaining bytes (CCS + fake
records) into RealityStream. RealityStream saw 0x14 (CCS) != 0x17 and
immediately returned an error, killing the connection.
Changes:
- reality.rs: append ChangeCipherSpec after ClientHello (RFC 8446 D.4)
export REALITY_SERVER_HANDSHAKE_RECORDS=5 constant
- xhttp.rs: drain all 5 server handshake records before creating RealityStream
- uot.rs: rebuild server_hello as proper 5-record TLS 1.3 flight:
ServerHello + CCS + fake EE (108B) + fake Cert (812B) + fake Fin (52B)
drain client CCS from raw stream before wrapping in RealityStream
- Flutter: Hide 'DNS Server' field and force '10.1.0.1' if connection link contains owndns=true
- Flutter: Remove 'Use Provider DNS' toggle to eliminate client-side choice
- Server (relay.rs): Intercept DNS queries targeting '10.1.0.1:53' and process them via internal DnsServer if DNS is enabled
- Server (api.rs): Continue appending owndns=true to subscription links to enforce internal DNS logic on clients
- ostp-server/relay.rs: remove DNS port 53 interception — DNS queries
now pass through to the actual DNS server as regular TCP connections
- ostp-client/native_handler.rs (Windows): add explicit gateway/32 route
via real interface BEFORE setting default route via TUN to prevent loop
- ostp-client/native_handler.rs (Linux): properly detect real gateway and
add default route via TUN with metric 10 after server IP exclusion
- Remove redundant extra DNS host routes from Windows setup script
- Boxed HandshakeState in NoiseSession to reduce enum variant sizes
- Used is_ok() instead of let Ok(_) pattern
- Applied automatic clippy fixes for minor warnings
ospab