add direct dialer and connector

config/parsing/chain.go

@@ -1,6 +1,8 @@
 package parsing
 
 import (
+	"time"
+
 	"github.com/go-gost/core/bypass"
 	"github.com/go-gost/core/chain"
 	"github.com/go-gost/core/connector"
@@ -135,7 +137,8 @@ func ParseChain(cfg *config.ChainConfig) (chain.Chainer, error) {
 				WithDialer(d).
 				WithAddr(v.Addr).
 				WithInterface(v.Interface).
-				WithSockOpts(sockOpts)
+				WithSockOpts(sockOpts).
+				WithTimeout(10 * time.Second)
 
 			node := chain.NewNode(v.Name, v.Addr).
 				WithTransport(tr).

connector/direct/connector.go

@@ -0,0 +1,55 @@
+package forward
+
+import (
+	"context"
+	"net"
+
+	"github.com/go-gost/core/connector"
+	md "github.com/go-gost/core/metadata"
+	"github.com/go-gost/x/registry"
+)
+
+func init() {
+	registry.ConnectorRegistry().Register("direct", NewConnector)
+}
+
+type directConnector struct {
+	options connector.Options
+}
+
+func NewConnector(opts ...connector.Option) connector.Connector {
+	options := connector.Options{}
+	for _, opt := range opts {
+		opt(&options)
+	}
+
+	return &directConnector{
+		options: options,
+	}
+}
+
+func (c *directConnector) Init(md md.Metadata) (err error) {
+	return nil
+}
+
+func (c *directConnector) Connect(ctx context.Context, _ net.Conn, network, address string, opts ...connector.ConnectOption) (net.Conn, error) {
+	var cOpts connector.ConnectOptions
+	for _, opt := range opts {
+		opt(&cOpts)
+	}
+
+	conn, err := cOpts.NetDialer.Dial(ctx, network, address)
+	if err != nil {
+		return nil, err
+	}
+
+	log := c.options.Logger.WithFields(map[string]any{
+		"remote":  conn.RemoteAddr().String(),
+		"local":   conn.LocalAddr().String(),
+		"network": network,
+		"address": address,
+	})
+	log.Debugf("connect %s/%s", address, network)
+
+	return conn, nil
+}

dialer/direct/dialer.go

@@ -0,0 +1,38 @@
+package tcp
+
+import (
+	"context"
+	"net"
+
+	"github.com/go-gost/core/dialer"
+	"github.com/go-gost/core/logger"
+	md "github.com/go-gost/core/metadata"
+	"github.com/go-gost/x/registry"
+)
+
+func init() {
+	registry.DialerRegistry().Register("direct", NewDialer)
+}
+
+type directDialer struct {
+	logger logger.Logger
+}
+
+func NewDialer(opts ...dialer.Option) dialer.Dialer {
+	options := &dialer.Options{}
+	for _, opt := range opts {
+		opt(options)
+	}
+
+	return &directDialer{
+		logger: options.Logger,
+	}
+}
+
+func (d *directDialer) Init(md md.Metadata) (err error) {
+	return
+}
+
+func (d *directDialer) Dial(ctx context.Context, addr string, opts ...dialer.DialOption) (net.Conn, error) {
+	return nil, nil
+}

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d
 	github.com/gin-contrib/cors v1.3.1
 	github.com/gin-gonic/gin v1.7.7
-	github.com/go-gost/core v0.0.0-20220908132925-c546a6b711d9
+	github.com/go-gost/core v0.0.0-20220908143917-e7a104651a75
 	github.com/go-gost/gosocks4 v0.0.1
 	github.com/go-gost/gosocks5 v0.3.1-0.20211109033403-d894d75b7f09
 	github.com/go-gost/relay v0.1.1-0.20211123134818-8ef7fd81ffd7

go.sum

@@ -98,8 +98,8 @@ github.com/gin-gonic/gin v1.7.7/go.mod h1:axIBovoeJpVj8S3BwE0uPMTeReE4+AfFtqpqaZ
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-gost/core v0.0.0-20220908132925-c546a6b711d9 h1:0y/ybIPhTJ6fwaN73r2zHmf7zyiaqjpmXTM5W4e0HbM=
-github.com/go-gost/core v0.0.0-20220908132925-c546a6b711d9/go.mod h1:bHVbCS9da6XtKNYMkMUVcck5UqDDUkyC37erVfs4GXQ=
+github.com/go-gost/core v0.0.0-20220908143917-e7a104651a75 h1:8DoQErtmgR9pRajWTswswLgaqOprJtkz/iC+2oOe24g=
+github.com/go-gost/core v0.0.0-20220908143917-e7a104651a75/go.mod h1:bHVbCS9da6XtKNYMkMUVcck5UqDDUkyC37erVfs4GXQ=
 github.com/go-gost/gosocks4 v0.0.1 h1:+k1sec8HlELuQV7rWftIkmy8UijzUt2I6t+iMPlGB2s=
 github.com/go-gost/gosocks4 v0.0.1/go.mod h1:3B6L47HbU/qugDg4JnoFPHgJXE43Inz8Bah1QaN9qCc=
 github.com/go-gost/gosocks5 v0.3.1-0.20211109033403-d894d75b7f09 h1:A95M6UWcfZgOuJkQ7QLfG0Hs5peWIUSysCDNz4pfe04=