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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,3 @@ | ||
| [submodule "core/src/main/golang/clash"] | ||
| path = core/src/main/golang/clash | ||
| url = https://github.com/Kr328/Clash |
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,11 +1,11 @@ | ||
| module github.com/kr328/clash | ||
| module github.com/kr328/cfa | ||
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| go 1.13 | ||
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| require ( | ||
| github.com/Dreamacro/clash v0.16.1-0.20191112020912-8e10e67b8925 | ||
| github.com/google/btree v1.0.0 // indirect | ||
| github.com/google/netstack v0.0.0-20191116005144-95bf25ab4723 | ||
| golang.org/x/sys v0.0.0-20191118133127-cf1e2d577169 | ||
| golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect | ||
| github.com/Dreamacro/clash v0.0.0 // local | ||
| github.com/google/netstack v0.0.0-20191031000057-4787376a6744 | ||
| golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe | ||
| ) | ||
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| replace github.com/Dreamacro/clash v0.0.0 => ./clash |
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| Original file line number | Diff line number | Diff line change |
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| package tun | ||
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| import ( | ||
| "net" | ||
| "time" | ||
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| "github.com/google/netstack/tcpip/adapters/gonet" | ||
| "github.com/google/netstack/tcpip/buffer" | ||
| "github.com/google/netstack/tcpip/stack" | ||
| "github.com/google/netstack/tcpip/transport/udp" | ||
| "github.com/google/netstack/waiter" | ||
| ) | ||
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| const defaultTimeout = 5 | ||
| const defaultDNS = "8.8.8.8" | ||
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| type DnsRedirectEndpoint struct { | ||
| stack *stack.Stack | ||
| udpForwarder *udp.Forwarder | ||
| targetAddr *net.UDPAddr | ||
| } | ||
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| func NewDnsRedirect(s *stack.Stack) *DnsRedirectEndpoint { | ||
| result := &DnsRedirectEndpoint{ | ||
| stack: s, | ||
| udpForwarder: nil, | ||
| targetAddr: &net.UDPAddr{IP: net.ParseIP("8.8.8.8"), Port: 53}, | ||
| } | ||
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| result.udpForwarder = udp.NewForwarder(s, func(request *udp.ForwarderRequest) { | ||
| var wq waiter.Queue | ||
| ep, err := request.CreateEndpoint(&wq) | ||
| if err != nil { | ||
| return | ||
| } | ||
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| conn := gonet.NewConn(&wq, ep) | ||
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| targetConn, udpErr := net.DialUDP("udp", &net.UDPAddr{IP: net.IPv4zero, Port: 0}, result.targetAddr) | ||
| if udpErr != nil { | ||
| conn.Close() | ||
| return | ||
| } | ||
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| // send | ||
| go func() { | ||
| var buffer [128]byte | ||
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| defer targetConn.Close() | ||
| defer conn.Close() | ||
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| for { | ||
| conn.SetDeadline(time.Now().Add(defaultTimeout * time.Second)) | ||
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| n, err := conn.Read(buffer[:]) | ||
| if err != nil { | ||
| return | ||
| } | ||
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| _, err = targetConn.Write(buffer[:n]) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| }() | ||
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| // recive | ||
| go func() { | ||
| var buffer [128]byte | ||
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| defer targetConn.Close() | ||
| defer conn.Close() | ||
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| for { | ||
| conn.SetDeadline(time.Now().Add(defaultTimeout * time.Second)) | ||
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| n, err := targetConn.Read(buffer[:]) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
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| _, err = conn.Write(buffer[:n]) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| }() | ||
| }) | ||
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| return result | ||
| } | ||
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| func (d *DnsRedirectEndpoint) SetTargetAddress(addr *net.UDPAddr) { | ||
| d.targetAddr = addr | ||
| } | ||
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| func (d *DnsRedirectEndpoint) UniqueID() uint64 { | ||
| return 999 | ||
| } | ||
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| func (d *DnsRedirectEndpoint) HandlePacket(r *stack.Route, id stack.TransportEndpointID, pkt buffer.VectorisedView) { | ||
| d.udpForwarder.HandlePacket(r, id, nil, pkt) | ||
| } | ||
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| func (d *DnsRedirectEndpoint) HandleControlPacket(id stack.TransportEndpointID, typ stack.ControlType, extra uint32, pkt buffer.VectorisedView) { | ||
| // Unsupported | ||
| } | ||
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| func (d *DnsRedirectEndpoint) Close() { | ||
| // Unsupported | ||
| } | ||
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| func (d *DnsRedirectEndpoint) Wait() { | ||
| // Unsupported | ||
| } |
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