refactor: Modular outbounds

include/outbound.go

@@ -0,0 +1,59 @@
+package include
+
+import (
+	"context"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/adapter/outbound"
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/protocol/block"
+	"github.com/sagernet/sing-box/protocol/direct"
+	"github.com/sagernet/sing-box/protocol/dns"
+	"github.com/sagernet/sing-box/protocol/group"
+	"github.com/sagernet/sing-box/protocol/http"
+	"github.com/sagernet/sing-box/protocol/shadowsocks"
+	"github.com/sagernet/sing-box/protocol/shadowtls"
+	"github.com/sagernet/sing-box/protocol/socks"
+	"github.com/sagernet/sing-box/protocol/ssh"
+	"github.com/sagernet/sing-box/protocol/tor"
+	"github.com/sagernet/sing-box/protocol/trojan"
+	"github.com/sagernet/sing-box/protocol/vless"
+	"github.com/sagernet/sing-box/protocol/vmess"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+func OutboundRegistry() *outbound.Registry {
+	registry := outbound.NewRegistry()
+
+	direct.RegisterOutbound(registry)
+
+	block.RegisterOutbound(registry)
+	dns.RegisterOutbound(registry)
+
+	group.RegisterSelector(registry)
+	group.RegisterURLTest(registry)
+
+	socks.RegisterOutbound(registry)
+	http.RegisterOutbound(registry)
+	shadowsocks.RegisterOutbound(registry)
+	vmess.RegisterOutbound(registry)
+	trojan.RegisterOutbound(registry)
+	tor.RegisterOutbound(registry)
+	ssh.RegisterOutbound(registry)
+	shadowtls.RegisterOutbound(registry)
+	vless.RegisterOutbound(registry)
+
+	registerQUICOutbounds(registry)
+	registerWireGuardOutbound(registry)
+	registerStubForRemovedOutbounds(registry)
+
+	return registry
+}
+
+func registerStubForRemovedOutbounds(registry *outbound.Registry) {
+	outbound.Register[option.ShadowsocksROutboundOptions](registry, C.TypeShadowsocksR, func(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowsocksROutboundOptions) (adapter.Outbound, error) {
+		return nil, E.New("ShadowsocksR is deprecated and removed in sing-box 1.6.0")
+	})
+}

include/quic.go

@@ -3,6 +3,16 @@
 package include
 
 import (
+	"github.com/sagernet/sing-box/adapter/outbound"
+	"github.com/sagernet/sing-box/protocol/hysteria"
+	"github.com/sagernet/sing-box/protocol/hysteria2"
+	"github.com/sagernet/sing-box/protocol/tuic"
 	_ "github.com/sagernet/sing-box/transport/v2rayquic"
 	_ "github.com/sagernet/sing-dns/quic"
 )
+
+func registerQUICOutbounds(registry *outbound.Registry) {
+	hysteria.RegisterOutbound(registry)
+	tuic.RegisterOutbound(registry)
+	hysteria2.RegisterOutbound(registry)
+}

include/quic_stub.go

@@ -6,8 +6,10 @@ import (
 	"context"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/adapter/outbound"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/v2ray"
 	"github.com/sagernet/sing-dns"
@@ -29,3 +31,15 @@ func init() {
 		},
 	)
 }
+
+func registerQUICOutbounds(registry *outbound.Registry) {
+	outbound.Register[option.HysteriaOutboundOptions](registry, C.TypeHysteria, func(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.HysteriaOutboundOptions) (adapter.Outbound, error) {
+		return nil, C.ErrQUICNotIncluded
+	})
+	outbound.Register[option.TUICOutboundOptions](registry, C.TypeTUIC, func(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.TUICOutboundOptions) (adapter.Outbound, error) {
+		return nil, C.ErrQUICNotIncluded
+	})
+	outbound.Register[option.Hysteria2OutboundOptions](registry, C.TypeHysteria2, func(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.Hysteria2OutboundOptions) (adapter.Outbound, error) {
+		return nil, C.ErrQUICNotIncluded
+	})
+}

include/wireguard.go

@@ -0,0 +1,12 @@
+//go:build with_wireguard
+
+package include
+
+import (
+	"github.com/sagernet/sing-box/adapter/outbound"
+	"github.com/sagernet/sing-box/protocol/wireguard"
+)
+
+func registerWireGuardOutbound(registry *outbound.Registry) {
+	wireguard.RegisterOutbound(registry)
+}

include/wireguard_stub.go

@@ -0,0 +1,20 @@
+//go:build !with_wireguard
+
+package include
+
+import (
+	"context"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/adapter/outbound"
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+func registerWireGuardOutbound(registry *outbound.Registry) {
+	outbound.Register[option.WireGuardOutboundOptions](registry, C.TypeWireGuard, func(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.WireGuardOutboundOptions) (adapter.Outbound, error) {
+		return nil, E.New(`WireGuard is not included in this build, rebuild with -tags with_wireguard`)
+	})
+}