mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-16 10:42:21 +08:00
89 lines
2.8 KiB
Go
89 lines
2.8 KiB
Go
package outbound
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
|
|
"github.com/sagernet/sing-box/adapter"
|
|
"github.com/sagernet/sing-box/common/dialer"
|
|
C "github.com/sagernet/sing-box/constant"
|
|
"github.com/sagernet/sing-box/log"
|
|
"github.com/sagernet/sing-box/option"
|
|
"github.com/sagernet/sing-shadowsocks"
|
|
"github.com/sagernet/sing-shadowsocks/shadowimpl"
|
|
"github.com/sagernet/sing/common/bufio"
|
|
M "github.com/sagernet/sing/common/metadata"
|
|
N "github.com/sagernet/sing/common/network"
|
|
)
|
|
|
|
var _ adapter.Outbound = (*Shadowsocks)(nil)
|
|
|
|
type Shadowsocks struct {
|
|
myOutboundAdapter
|
|
dialer N.Dialer
|
|
method shadowsocks.Method
|
|
serverAddr M.Socksaddr
|
|
}
|
|
|
|
func NewShadowsocks(router adapter.Router, logger log.Logger, tag string, options option.ShadowsocksOutboundOptions) (*Shadowsocks, error) {
|
|
method, err := shadowimpl.FetchMethod(options.Method, options.Password)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &Shadowsocks{
|
|
myOutboundAdapter{
|
|
protocol: C.TypeDirect,
|
|
logger: logger,
|
|
tag: tag,
|
|
network: options.Network.Build(),
|
|
},
|
|
dialer.NewOutbound(router, options.OutboundDialerOptions),
|
|
method,
|
|
options.ServerOptions.Build(),
|
|
}, nil
|
|
}
|
|
|
|
func (h *Shadowsocks) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
|
|
ctx, metadata := adapter.AppendContext(ctx)
|
|
metadata.Outbound = h.tag
|
|
metadata.Destination = destination
|
|
switch network {
|
|
case C.NetworkTCP:
|
|
h.logger.WithContext(ctx).Info("outbound connection to ", destination)
|
|
outConn, err := h.dialer.DialContext(ctx, C.NetworkTCP, h.serverAddr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return h.method.DialEarlyConn(outConn, destination), nil
|
|
case C.NetworkUDP:
|
|
h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
|
|
outConn, err := h.dialer.DialContext(ctx, C.NetworkUDP, h.serverAddr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &bufio.BindPacketConn{PacketConn: h.method.DialPacketConn(outConn), Addr: destination}, nil
|
|
default:
|
|
panic("unknown network " + network)
|
|
}
|
|
}
|
|
|
|
func (h *Shadowsocks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
|
|
ctx, metadata := adapter.AppendContext(ctx)
|
|
metadata.Outbound = h.tag
|
|
metadata.Destination = destination
|
|
h.logger.WithContext(ctx).Info("outbound packet connection to ", h.serverAddr)
|
|
outConn, err := h.dialer.DialContext(ctx, "udp", h.serverAddr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return h.method.DialPacketConn(outConn), nil
|
|
}
|
|
|
|
func (h *Shadowsocks) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
|
|
return NewEarlyConnection(ctx, h, conn, metadata)
|
|
}
|
|
|
|
func (h *Shadowsocks) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
|
|
return NewPacketConnection(ctx, h, conn, metadata)
|
|
}
|