mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-24 09:31:30 +00:00
106 lines
3.3 KiB
Go
106 lines
3.3 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/common"
|
|
E "github.com/sagernet/sing/common/exceptions"
|
|
M "github.com/sagernet/sing/common/metadata"
|
|
N "github.com/sagernet/sing/common/network"
|
|
"github.com/sagernet/sing/common/uot"
|
|
"github.com/sagernet/sing/protocol/socks"
|
|
)
|
|
|
|
var _ adapter.Outbound = (*Socks)(nil)
|
|
|
|
type Socks struct {
|
|
myOutboundAdapter
|
|
client *socks.Client
|
|
resolve bool
|
|
uotClient *uot.Client
|
|
}
|
|
|
|
func NewSocks(router adapter.Router, logger log.ContextLogger, tag string, options option.SocksOutboundOptions) (*Socks, error) {
|
|
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
|
|
}
|
|
outbound := &Socks{
|
|
myOutboundAdapter: myOutboundAdapter{
|
|
protocol: C.TypeSocks,
|
|
network: options.Network.Build(),
|
|
router: router,
|
|
logger: logger,
|
|
tag: tag,
|
|
},
|
|
client: socks.NewClient(dialer.New(router, options.DialerOptions), options.ServerOptions.Build(), version, options.Username, options.Password),
|
|
resolve: version == socks.Version4,
|
|
}
|
|
uotOptions := common.PtrValueOrDefault(options.UDPOverTCPOptions)
|
|
if uotOptions.Enabled {
|
|
outbound.uotClient = &uot.Client{
|
|
Dialer: outbound.client,
|
|
Version: uotOptions.Version,
|
|
}
|
|
}
|
|
return outbound, nil
|
|
}
|
|
|
|
func (h *Socks) 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 N.NetworkName(network) {
|
|
case N.NetworkTCP:
|
|
h.logger.InfoContext(ctx, "outbound connection to ", destination)
|
|
case N.NetworkUDP:
|
|
if h.uotClient != nil {
|
|
h.logger.InfoContext(ctx, "outbound UoT connect packet connection to ", destination)
|
|
return h.uotClient.DialContext(ctx, network, destination)
|
|
}
|
|
h.logger.InfoContext(ctx, "outbound packet connection to ", destination)
|
|
default:
|
|
return nil, E.Extend(N.ErrUnknownNetwork, network)
|
|
}
|
|
if h.resolve && destination.IsFqdn() {
|
|
addrs, err := h.router.LookupDefault(ctx, destination.Fqdn)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return N.DialSerial(ctx, h.client, network, destination, addrs)
|
|
}
|
|
return h.client.DialContext(ctx, network, destination)
|
|
}
|
|
|
|
func (h *Socks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
|
|
ctx, metadata := adapter.AppendContext(ctx)
|
|
metadata.Outbound = h.tag
|
|
metadata.Destination = destination
|
|
if h.uotClient != nil {
|
|
h.logger.InfoContext(ctx, "outbound UoT packet connection to ", destination)
|
|
return h.uotClient.ListenPacket(ctx, destination)
|
|
}
|
|
h.logger.InfoContext(ctx, "outbound packet connection to ", destination)
|
|
return h.client.ListenPacket(ctx, destination)
|
|
}
|
|
|
|
func (h *Socks) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
|
|
return NewConnection(ctx, h, conn, metadata)
|
|
}
|
|
|
|
func (h *Socks) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
|
|
return NewPacketConnection(ctx, h, conn, metadata)
|
|
}
|