commit e604afc17ded34ee1232e710ffc1999b5f435b35 Author: 黄思敏 Date: Tue Aug 23 17:58:07 2022 +0800 初始化 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ + diff --git a/gen.sh b/gen.sh new file mode 100644 index 0000000..50a03da --- /dev/null +++ b/gen.sh @@ -0,0 +1,2 @@ +#! /bin/bash +protoc --go_out=plugins=grpc:. proto/*.proto \ No newline at end of file diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..fdc6ebc --- /dev/null +++ b/go.mod @@ -0,0 +1,16 @@ +module slimming + +go 1.19 + +require github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 + +require ( + github.com/golang/protobuf v1.5.2 // indirect + github.com/songgao/packets v0.0.0-20160404182456-549a10cd4091 // indirect + golang.org/x/net v0.0.0-20220822230855-b0a4917ee28c // indirect + golang.org/x/sys v0.0.0-20220818161305-2296e01440c6 // indirect + golang.org/x/text v0.3.7 // indirect + google.golang.org/genproto v0.0.0-20220822174746-9e6da59bd2fc // indirect + google.golang.org/grpc v1.48.0 // indirect + google.golang.org/protobuf v1.28.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..e93bf3b --- /dev/null +++ b/go.sum @@ -0,0 +1,134 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod 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h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= +github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk= +github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE= +github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= +github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= +github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw= 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"google/protobuf/any.proto"; + +option go_package = "proto/gen"; + +package frame; + +service FrameService { + rpc SendFrames (stream Request) returns (Response); +} + +// 请求 +message Request { + int32 Type = 1; + repeated bytes Frames = 2; +} + +// 响应 +message Response { + int32 Code = 1; + string Message = 2; + bytes Data = 3; +} \ No newline at end of file diff --git a/proto/gen/frame.pb.go b/proto/gen/frame.pb.go new file mode 100644 index 0000000..f9a84cd --- /dev/null +++ b/proto/gen/frame.pb.go @@ -0,0 +1,360 @@ +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.28.1 +// protoc v3.6.1 +// source: proto/frame.proto + +package gen + +import ( + context "context" + _ "github.com/golang/protobuf/ptypes/any" + grpc "google.golang.org/grpc" + codes "google.golang.org/grpc/codes" + status "google.golang.org/grpc/status" + protoreflect "google.golang.org/protobuf/reflect/protoreflect" + protoimpl "google.golang.org/protobuf/runtime/protoimpl" + reflect "reflect" + sync "sync" +) + +const ( + // Verify that this generated code is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) + // Verify that runtime/protoimpl is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) +) + +// 请求 +type Request struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Type int32 `protobuf:"varint,1,opt,name=Type,proto3" json:"Type,omitempty"` + Frames [][]byte `protobuf:"bytes,2,rep,name=Frames,proto3" json:"Frames,omitempty"` +} + +func (x *Request) Reset() { + *x = Request{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_frame_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *Request) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*Request) ProtoMessage() {} + +func (x *Request) ProtoReflect() protoreflect.Message { + mi := &file_proto_frame_proto_msgTypes[0] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use Request.ProtoReflect.Descriptor instead. +func (*Request) Descriptor() ([]byte, []int) { + return file_proto_frame_proto_rawDescGZIP(), []int{0} +} + +func (x *Request) GetType() int32 { + if x != nil { + return x.Type + } + return 0 +} + +func (x *Request) GetFrames() [][]byte { + if x != nil { + return x.Frames + } + return nil +} + +// 响应 +type Response struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Code int32 `protobuf:"varint,1,opt,name=Code,proto3" json:"Code,omitempty"` + Message string `protobuf:"bytes,2,opt,name=Message,proto3" json:"Message,omitempty"` + Data []byte `protobuf:"bytes,3,opt,name=Data,proto3" json:"Data,omitempty"` +} + +func (x *Response) Reset() { + *x = Response{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_frame_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *Response) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*Response) ProtoMessage() {} + +func (x *Response) ProtoReflect() protoreflect.Message { + mi := &file_proto_frame_proto_msgTypes[1] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use Response.ProtoReflect.Descriptor instead. +func (*Response) Descriptor() ([]byte, []int) { + return file_proto_frame_proto_rawDescGZIP(), []int{1} +} + +func (x *Response) GetCode() int32 { + if x != nil { + return x.Code + } + return 0 +} + +func (x *Response) GetMessage() string { + if x != nil { + return x.Message + } + return "" +} + +func (x *Response) GetData() []byte { + if x != nil { + return x.Data + } + return nil +} + +var File_proto_frame_proto protoreflect.FileDescriptor + +var file_proto_frame_proto_rawDesc = []byte{ + 0x0a, 0x11, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x66, 0x72, 0x61, 0x6d, 0x65, 0x2e, 0x70, 0x72, + 0x6f, 0x74, 0x6f, 0x12, 0x05, 0x66, 0x72, 0x61, 0x6d, 0x65, 0x1a, 0x19, 0x67, 0x6f, 0x6f, 0x67, + 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x61, 0x6e, 0x79, 0x2e, + 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x35, 0x0a, 0x07, 0x52, 0x65, 0x71, 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frame.Request + 1, // 1: frame.FrameService.SendFrames:output_type -> frame.Response + 1, // [1:2] is the sub-list for method output_type + 0, // [0:1] is the sub-list for method input_type + 0, // [0:0] is the sub-list for extension type_name + 0, // [0:0] is the sub-list for extension extendee + 0, // [0:0] is the sub-list for field type_name +} + +func init() { file_proto_frame_proto_init() } +func file_proto_frame_proto_init() { + if File_proto_frame_proto != nil { + return + } + if !protoimpl.UnsafeEnabled { + file_proto_frame_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*Request); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_frame_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*Response); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + } + type x struct{} + out := protoimpl.TypeBuilder{ + File: protoimpl.DescBuilder{ + GoPackagePath: reflect.TypeOf(x{}).PkgPath(), + RawDescriptor: file_proto_frame_proto_rawDesc, + NumEnums: 0, + NumMessages: 2, + NumExtensions: 0, + NumServices: 1, + }, + GoTypes: file_proto_frame_proto_goTypes, + DependencyIndexes: file_proto_frame_proto_depIdxs, + MessageInfos: file_proto_frame_proto_msgTypes, + }.Build() + File_proto_frame_proto = out.File + file_proto_frame_proto_rawDesc = nil + file_proto_frame_proto_goTypes = nil + file_proto_frame_proto_depIdxs = nil +} + +// Reference imports to suppress errors if they are not otherwise used. +var _ context.Context +var _ grpc.ClientConnInterface + +// This is a compile-time assertion to ensure that this generated file +// is compatible with the grpc package it is being compiled against. +const _ = grpc.SupportPackageIsVersion6 + +// FrameServiceClient is the client API for FrameService service. +// +// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream. +type FrameServiceClient interface { + SendFrames(ctx context.Context, opts ...grpc.CallOption) (FrameService_SendFramesClient, error) +} + +type frameServiceClient struct { + cc grpc.ClientConnInterface +} + +func NewFrameServiceClient(cc grpc.ClientConnInterface) FrameServiceClient { + return &frameServiceClient{cc} +} + +func (c *frameServiceClient) SendFrames(ctx context.Context, opts ...grpc.CallOption) (FrameService_SendFramesClient, error) { + stream, err := c.cc.NewStream(ctx, &_FrameService_serviceDesc.Streams[0], "/frame.FrameService/SendFrames", opts...) + if err != nil { + return nil, err + } + x := &frameServiceSendFramesClient{stream} + return x, nil +} + +type FrameService_SendFramesClient interface { + Send(*Request) error + CloseAndRecv() (*Response, error) + grpc.ClientStream +} + +type frameServiceSendFramesClient struct { + grpc.ClientStream +} + +func (x *frameServiceSendFramesClient) Send(m *Request) error { + return x.ClientStream.SendMsg(m) +} + +func (x *frameServiceSendFramesClient) CloseAndRecv() (*Response, error) { + if err := x.ClientStream.CloseSend(); err != nil { + return nil, err + } + m := new(Response) + if err := x.ClientStream.RecvMsg(m); err != nil { + return nil, err + } + return m, nil +} + +// FrameServiceServer is the server API for FrameService service. +type FrameServiceServer interface { + SendFrames(FrameService_SendFramesServer) error +} + +// UnimplementedFrameServiceServer can be embedded to have forward compatible implementations. +type UnimplementedFrameServiceServer struct { +} + +func (*UnimplementedFrameServiceServer) SendFrames(FrameService_SendFramesServer) error { + return status.Errorf(codes.Unimplemented, "method SendFrames not implemented") +} + +func RegisterFrameServiceServer(s *grpc.Server, srv FrameServiceServer) { + s.RegisterService(&_FrameService_serviceDesc, srv) +} + +func _FrameService_SendFrames_Handler(srv interface{}, stream grpc.ServerStream) error { + return srv.(FrameServiceServer).SendFrames(&frameServiceSendFramesServer{stream}) +} + +type FrameService_SendFramesServer interface { + SendAndClose(*Response) error + Recv() (*Request, error) + grpc.ServerStream +} + +type frameServiceSendFramesServer struct { + grpc.ServerStream +} + +func (x *frameServiceSendFramesServer) SendAndClose(m *Response) error { + return x.ServerStream.SendMsg(m) +} + +func (x *frameServiceSendFramesServer) Recv() (*Request, error) { + m := new(Request) + if err := x.ServerStream.RecvMsg(m); err != nil { + return nil, err + } + return m, nil +} + +var _FrameService_serviceDesc = grpc.ServiceDesc{ + ServiceName: "frame.FrameService", + HandlerType: (*FrameServiceServer)(nil), + Methods: []grpc.MethodDesc{}, + Streams: []grpc.StreamDesc{ + { + StreamName: "SendFrames", + Handler: _FrameService_SendFrames_Handler, + ClientStreams: true, + }, + }, + Metadata: "proto/frame.proto", +} diff --git a/rpc.go b/rpc.go new file mode 100644 index 0000000..6bf3e2a --- /dev/null +++ b/rpc.go @@ -0,0 +1,90 @@ +package slimming + +import ( + "context" + "flag" + "fmt" + "log" + "net" + gen "slimming/proto/gen" + "time" + + "google.golang.org/grpc" + "google.golang.org/grpc/credentials/insecure" +) + +type RPCServer struct { + gen.UnimplementedFrameServiceServer + + FrameChan chan [][]byte +} + +var ( + serverPort = flag.Int("port", 50051, "The server port") + othersAddr = flag.String("addr", "", "The other server addr") +) + +var rpcServer = func() *RPCServer { + rs := &RPCServer{} + + conn, err := grpc.Dial(*othersAddr, + grpc.WithTransportCredentials(insecure.NewCredentials()), + ) + if err != nil { + log.Fatalf("did not connect: %v", err) + } + defer conn.Close() + c := gen.NewFrameServiceClient(conn) + + // Contact the server and print out its response. + ctx, cancel := context.WithTimeout(context.Background(), time.Second*10) + defer cancel() + + stream, err := c.SendFrames(ctx) + if err != nil { + panic(err) + } + + err = stream.Send(&gen.Request{ + Frames: <-rs.FrameChan, + }) + if err != nil { + panic(err) + } + + return rs +}() + +func (rpc *RPCServer) Run() { + flag.Parse() + lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *serverPort)) + if err != nil { + log.Fatalf("failed to listen: %v", err) + } + s := grpc.NewServer() + gen.RegisterFrameServiceServer(s, rpc) + log.Printf("server listening at %v", lis.Addr()) + if err := s.Serve(lis); err != nil { + log.Fatalf("failed to serve: %v", err) + } +} + +// SayHello implements helloworld.GreeterServer +func (s *RPCServer) SendFrames(stream gen.FrameService_SendFramesServer) error { + log.Printf("Received: %v", stream) + + for { + request, err := stream.Recv() + if err != nil { + log.Panic(err) + } + netCard.FrameChan <- request.GetFrames() + } + + // err := stream.SendAndClose(&gen.Response{Code: 0}) + // if err != nil { + // log.Panic(err) + // } + + return nil +} diff --git a/tap.go b/tap.go new file mode 100644 index 0000000..1670741 --- /dev/null +++ b/tap.go @@ -0,0 +1,87 @@ +package slimming + +import ( + "log" + "time" + + "github.com/songgao/packets/ethernet" + "github.com/songgao/water" +) + +type NetCard struct { + FrameChan chan [][]byte + ifce *water.Interface +} + +var netCard = func() *NetCard { + config := water.Config{ + DeviceType: water.TAP, + } + config.Name = "stap" + + ifce, err := water.New(config) + if err != nil { + log.Fatal(err) + } + + nc := &NetCard{ + FrameChan: make(chan [][]byte, 2000), + ifce: ifce, + } + + go nc.RunRead() + go nc.RunWrite() + + time.Sleep(time.Second) + return nc +}() + +func GetNetCard() *NetCard { + return netCard +} + +func (nc *NetCard) RunRead() { + + var ifce *water.Interface = nc.ifce + var ticker time.Ticker = *time.NewTicker(time.Millisecond * 20) + for { + + var framesBytes [][]byte + for range ticker.C { + var rframe ethernet.Frame + rframe.Resize(1500) + n, err := ifce.Read([]byte(rframe)) + if err != nil { + log.Fatal(err) + } + rframe = rframe[:n] + framesBytes = append(framesBytes, []byte(rframe)) + } + + if len(framesBytes) > 0 { + rpcServer.FrameChan <- framesBytes + } + + // 写到grpc服务 + + // log.Printf("Dst: %s\n", rframe.Destination()[0:4]) + // log.Printf("Src: %s\n", rframe.Source()[0:4]) + // log.Printf("Ethertype: % x\n", rframe.Ethertype()) + // log.Printf("Payload: % x\n", rframe.Payload()) + + } +} + +func (nc *NetCard) RunWrite() { + var ifce *water.Interface = nc.ifce + + for wframes := range nc.FrameChan { + for _, wframe := range wframes { + _, err := ifce.Write(wframe) + if err != nil { + panic(err) + } + } + } + +}