sing-box/outbound/socks.go

78 lines
2.3 KiB
Go
Raw Normal View History

2022-07-03 05:14:49 +00:00
package outbound
import (
"context"
"net"
2022-07-06 07:01:09 +00:00
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/protocol/socks"
2022-07-03 05:14:49 +00:00
"github.com/sagernet/sing-box/adapter"
2022-07-07 13:47:21 +00:00
"github.com/sagernet/sing-box/common/dialer"
2022-07-03 05:14:49 +00:00
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
)
var _ adapter.Outbound = (*Socks)(nil)
type Socks struct {
myOutboundAdapter
client *socks.Client
}
func NewSocks(router adapter.Router, logger log.Logger, tag string, options option.SocksOutboundOptions) (*Socks, error) {
2022-07-07 15:36:32 +00:00
detour := dialer.NewOutbound(router, options.OutboundDialerOptions)
2022-07-03 05:14:49 +00:00
var version socks.Version
var err error
if options.Version != "" {
version, err = socks.ParseVersion(options.Version)
} else {
version = socks.Version5
}
if err != nil {
return nil, err
}
return &Socks{
myOutboundAdapter{
protocol: C.TypeSocks,
logger: logger,
tag: tag,
network: options.Network.Build(),
2022-07-03 05:14:49 +00:00
},
2022-07-07 13:47:21 +00:00
socks.NewClient(detour, options.ServerOptions.Build(), version, options.Username, options.Password),
2022-07-03 05:14:49 +00:00
}, nil
}
func (h *Socks) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
2022-07-07 13:47:21 +00:00
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
2022-07-07 15:36:32 +00:00
metadata.Destination = destination
2022-07-03 05:14:49 +00:00
switch network {
case C.NetworkTCP:
h.logger.WithContext(ctx).Info("outbound connection to ", destination)
case C.NetworkUDP:
h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
default:
panic("unknown network " + network)
}
return h.client.DialContext(ctx, network, destination)
}
func (h *Socks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
2022-07-07 13:47:21 +00:00
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
2022-07-07 15:36:32 +00:00
metadata.Destination = destination
2022-07-03 05:14:49 +00:00
h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
return h.client.ListenPacket(ctx, destination)
}
2022-07-07 15:36:32 +00:00
func (h *Socks) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
return NewConnection(ctx, h, conn, metadata)
2022-07-03 05:14:49 +00:00
}
2022-07-07 15:36:32 +00:00
func (h *Socks) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
return NewPacketConnection(ctx, h, conn, metadata)
2022-07-03 05:14:49 +00:00
}