mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-26 02:21:28 +00:00
75 lines
2.6 KiB
Go
75 lines
2.6 KiB
Go
package inbound
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import (
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"context"
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"net"
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"github.com/sagernet/sing-box/adapter"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-shadowsocks"
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"github.com/sagernet/sing-shadowsocks/shadowaead"
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"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
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"github.com/sagernet/sing/common"
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"github.com/sagernet/sing/common/buf"
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E "github.com/sagernet/sing/common/exceptions"
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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)
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var _ adapter.Inbound = (*Shadowsocks)(nil)
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type Shadowsocks struct {
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myInboundAdapter
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service shadowsocks.Service
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}
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func NewShadowsocks(ctx context.Context, router adapter.Router, logger log.Logger, tag string, options option.ShadowsocksInboundOptions) (*Shadowsocks, error) {
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inbound := &Shadowsocks{
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myInboundAdapter: myInboundAdapter{
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protocol: C.TypeShadowsocks,
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network: options.Network.Build(),
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ctx: ctx,
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router: router,
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logger: logger,
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tag: tag,
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listenOptions: options.ListenOptions,
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},
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}
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inbound.connHandler = inbound
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inbound.packetHandler = inbound
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var udpTimeout int64
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if options.UDPTimeout != 0 {
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udpTimeout = options.UDPTimeout
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} else {
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udpTimeout = 300
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}
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var err error
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switch {
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case options.Method == shadowsocks.MethodNone:
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inbound.service = shadowsocks.NewNoneService(options.UDPTimeout, inbound.upstreamContextHandler())
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case common.Contains(shadowaead.List, options.Method):
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inbound.service, err = shadowaead.NewService(options.Method, nil, options.Password, udpTimeout, inbound.upstreamContextHandler())
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case common.Contains(shadowaead_2022.List, options.Method):
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inbound.service, err = shadowaead_2022.NewServiceWithPassword(options.Method, options.Password, udpTimeout, inbound.upstreamContextHandler())
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default:
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err = E.New("shadowsocks: unsupported method: ", options.Method)
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}
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inbound.packetUpstream = inbound.service
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return inbound, err
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}
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func (h *Shadowsocks) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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return h.service.NewConnection(&adapter.MetadataContext{Context: ctx, Metadata: metadata}, conn, M.Metadata{
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Source: metadata.Source,
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})
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}
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func (h *Shadowsocks) NewPacket(ctx context.Context, conn N.PacketConn, buffer *buf.Buffer, metadata adapter.InboundContext) error {
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h.logger.Trace("inbound packet from ", metadata.Source)
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return h.service.NewPacket(&adapter.MetadataContext{Context: ctx, Metadata: metadata}, conn, buffer, M.Metadata{
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Source: metadata.Source,
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})
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}
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