ginuerzh 72db96d4cd x: add hopGroup for conditional hop-level selection with probe/failCodes marker separation
hopGroup wraps named hops with per-entry matcher + probe, implementing
hop.Hop for drop-in compatibility with the existing Forwarder.Forward().

Core design: hopEntry.marker (probe, hop-level) is independent of
node.Marker() (failCodes, node-level) so probe Reset() cannot undo a
failCodes Mark() — the two mechanisms no longer conflict on the single
chain.Node marker.

- hop/group.go: HopEntry + hopGroup + probe infrastructure
- config/config.go: ForwardHopGroupConfig, ForwardHopConfig types
- config/parsing/service/parse.go: parseHopGroup, HopGroup > Hop > Name > Nodes precedence
- config/parsing/node/parse.go: export parseProbeConfig → ParseProbeConfig
2026-07-27 22:08:34 +08:00
2026-07-26 17:58:12 +08:00
2022-03-14 20:27:50 +08:00

x

The implementation layer for the GOST proxy framework. Every interface defined in core/ is implemented here — handlers, listeners, dialers, connectors, plus config parsing, registries, and all cross-cutting concerns.

Package layout

Directory Purpose
handler/ Protocol handlers (http, socks4/5, ss, ssh, tunnel, tun, dns, redirect, etc.)
listener/ Protocol listeners (tcp, tls, ws, http2/3, quic, kcp, icmp, tun, udp, etc.)
dialer/ Outbound dialers (tcp, tls, ws, http2/3, quic, grpc, ssh, wg, kcp, icmp, etc.)
connector/ Destination connectors (http, socks4/5, ss, ssh, relay, tunnel, direct, etc.)
config/ Config struct, YAML/JSON parsing, and service construction
registry/ Typed global registries for all component types
service/ Accept loop wiring listener + handler
chain/ Multi-hop forwarding chain and route implementation
router/ Route table router (destination-based routing)
hop/ Node group with load-balanced selection
selector/ Load-balancing strategies (round-robin, random, weighted, hash)
auth/, bypass/, admission/ Authentication, bypass rules, admission control
resolver/, hosts/ DNS resolution and host mapping
limiter/ Traffic, connection, and rate limiters
recorder/, observer/ Traffic recording and observability
ingress/, sd/, routing/ Ingress control, service discovery, routing rules
logger/, metrics/, api/ Logging, Prometheus metrics, Web API
metadata/, ctx/ Metadata key-value system and context propagation
internal/ Shared internals — not importable externally

Component pattern

Every handler, listener, dialer, and connector follows the same pattern: init() registers a constructor into a global registry, the constructor takes functional options, and Init(metadata.Metadata) extracts typed configuration from the metadata key-value map.

See CLAUDE.md for detailed architecture and conventions.

S
Description
Extended (may be experimental) features outside the main gost tree.
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