mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-25 10:01:30 +00:00
88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
package dialer
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import (
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"context"
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"net"
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"net/netip"
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"time"
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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/option"
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"github.com/sagernet/sing-dns"
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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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"github.com/sagernet/sing/service"
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)
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func New(ctx context.Context, options option.DialerOptions) (N.Dialer, error) {
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networkManager := service.FromContext[adapter.NetworkManager](ctx)
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if options.IsWireGuardListener {
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return NewDefault(networkManager, options)
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}
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var (
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dialer N.Dialer
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err error
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)
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if options.Detour == "" {
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dialer, err = NewDefault(networkManager, options)
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if err != nil {
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return nil, err
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}
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} else {
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outboundManager := service.FromContext[adapter.OutboundManager](ctx)
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if outboundManager == nil {
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return nil, E.New("missing outbound manager")
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}
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dialer = NewDetour(outboundManager, options.Detour)
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}
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if networkManager == nil {
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return NewDefault(networkManager, options)
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}
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if options.Detour == "" {
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router := service.FromContext[adapter.Router](ctx)
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if router != nil {
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dialer = NewResolveDialer(
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router,
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dialer,
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options.Detour == "" && !options.TCPFastOpen,
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dns.DomainStrategy(options.DomainStrategy),
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time.Duration(options.FallbackDelay))
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}
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}
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return dialer, nil
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}
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func NewDirect(ctx context.Context, options option.DialerOptions) (ParallelInterfaceDialer, error) {
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if options.Detour != "" {
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return nil, E.New("`detour` is not supported in direct context")
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}
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networkManager := service.FromContext[adapter.NetworkManager](ctx)
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if options.IsWireGuardListener {
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return NewDefault(networkManager, options)
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}
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dialer, err := NewDefault(networkManager, options)
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if err != nil {
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return nil, err
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}
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return NewResolveParallelInterfaceDialer(
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service.FromContext[adapter.Router](ctx),
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dialer,
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true,
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dns.DomainStrategy(options.DomainStrategy),
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time.Duration(options.FallbackDelay),
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), nil
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}
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type ParallelInterfaceDialer interface {
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N.Dialer
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DialParallelInterface(ctx context.Context, network string, destination M.Socksaddr, strategy C.NetworkStrategy, fallbackDelay time.Duration) (net.Conn, error)
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ListenSerialInterfacePacket(ctx context.Context, destination M.Socksaddr, strategy C.NetworkStrategy, fallbackDelay time.Duration) (net.PacketConn, error)
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}
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type ParallelNetworkDialer interface {
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DialParallelNetwork(ctx context.Context, network string, destination M.Socksaddr, destinationAddresses []netip.Addr, strategy C.NetworkStrategy, fallbackDelay time.Duration) (net.Conn, error)
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ListenSerialNetworkPacket(ctx context.Context, destination M.Socksaddr, destinationAddresses []netip.Addr, strategy C.NetworkStrategy, fallbackDelay time.Duration) (net.PacketConn, netip.Addr, error)
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}
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