├── .gitignore ├── LICENSE ├── Makefile ├── README.md ├── clash └── clash.go ├── freeport └── freeport.go ├── go.mod ├── go.sum ├── tun2socks └── tun2socks.go └── util └── util.go /.gitignore: -------------------------------------------------------------------------------- 1 | # Binaries for programs and plugins 2 | *.exe 3 | *.exe~ 4 | *.dll 5 | *.so 6 | *.dylib 7 | 8 | # Test binary, build with `go test -c` 9 | *.test 10 | 11 | # Output of the go coverage tool, specifically when used with LiteIDE 12 | *.out 13 | 14 | # build 15 | build/ 16 | vendor/ 17 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | BUILDDIR=$(shell pwd)/build 2 | IMPORT_PATH= \ 3 | github.com/trojan-gfw/igniter-go-libs/clash \ 4 | github.com/trojan-gfw/igniter-go-libs/tun2socks \ 5 | github.com/trojan-gfw/igniter-go-libs/freeport \ 6 | github.com/trojan-gfw/igniter-go-libs/util 7 | 8 | all: ios android 9 | 10 | ios: clean 11 | mkdir -p $(BUILDDIR) 12 | gomobile bind -o $(BUILDDIR)/golibs.framework -a -ldflags '-w' -target=ios $(IMPORT_PATH) 13 | 14 | 15 | android: clean 16 | mkdir -p $(BUILDDIR) 17 | env GO111MODULE="on" gomobile bind -o $(BUILDDIR)/golibs.aar -a -v -x -androidapi 23 -ldflags '-w' -target=android $(IMPORT_PATH) 18 | 19 | clean: 20 | gomobile clean 21 | rm -rf $(BUILDDIR) 22 | 23 | cleanmodcache: 24 | go clean -modcache 25 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # igniter-go-libs 2 | 3 | ## How to build 4 | 5 | ### Prerequirements 6 | 7 | * go >= 1.13 8 | * gomobile https://github.com/golang/mobile 9 | 10 | ### Install Go 11 | 12 | Please make sure you have at least Go 1.13 installed correctly 13 | 14 | ```shell 15 | go version 16 | ``` 17 | 18 | You should see something like 19 | ``` 20 | go version go1.13.8 linux/amd64 21 | ``` 22 | 23 | ### Install and upgrade gomobile 24 | 25 | In this example, We will install `gomobile` and its dependencies to `$GOPATH`. 26 | 27 | You can find the executable in `$GOPATH/bin`, to make it easy to use, we add it to `PATH`. 28 | 29 | To upgrade, re-run the install commands. 30 | 31 | ```shell 32 | export GOPATH=$HOME/go 33 | go get -u -d -v golang.org/x/mobile/cmd/gomobile 34 | go build -a -v golang.org/x/mobile/cmd/gomobile 35 | go install -v golang.org/x/mobile/cmd/gomobile 36 | # Make sure we can execute gomobile and gobind directly 37 | export PATH="$GOPATH/bin:$PATH" 38 | # prepare gomobile component: gobind 39 | gomobile init 40 | ``` 41 | 42 | ### Build 43 | 44 | ```shell 45 | # If you cannot execute command, make sure your PATH is correct 46 | 47 | # Point to your Android SDK root 48 | # change to your installation configuration please 49 | export ANDROID_HOME=/path/to/your/android/sdk 50 | 51 | # Clone this repository 52 | pushd /path/to/git/repository/just/cloned 53 | 54 | make android 55 | ``` 56 | 57 | ### Development Guide 58 | 59 | #### How to switch between local and remove module 60 | 61 | If you want to say, point to the local version of a dependency in Go rather than the one over the web, use the replace keyword. 62 | 63 | The replace line goes above your require statements, like so: 64 | 65 | ``` 66 | module github.com/person/foo 67 | 68 | replace github.com/person/bar => /Users/person/Projects/bar 69 | 70 | require ( 71 | github.com/person/bar v1.0.0 72 | ) 73 | 74 | ``` 75 | 76 | And now when you compile this module (go install), it will use your local code rather than the other dependency. 77 | 78 | According to the docs, you do need to make sure that the code you’re pointing to also has a go.mod file. 79 | 80 | ```shell 81 | go mod edit -replace github.com/eycorsican/go-tun2socks=/path/to/my/local/github/igniter-deps/go-tun2socks 82 | ``` 83 | 84 | It looks everything is fine, we can push changes in your local repository to the remote one. 85 | 86 | In this example, the commit we just pushed is `efeee82`. 87 | 88 | To switch to the version over the web, a.k.a. the commit `efeee82` from module `github.com/trojan-gfw/go-tun2socks` 89 | 90 | ```shell 91 | go mod edit -replace github.com/eycorsican/go-tun2socks=github.com/trojan-gfw/go-tun2socks@efeee82 92 | ``` 93 | 94 | To check which dependency you are truely using: 95 | 96 | ```shell 97 | go list -m all 98 | ``` 99 | 100 | #### How to make C/C++ source changes take effect 101 | 102 | For go tools, e.g. `gobind`, it only check `*.go` file changes. 103 | 104 | Please make sure to change at least one golang source by adding whitespaces or line breaks or whatever you like. 105 | 106 | The go tools notify `*.go` changes, it will recompile the C/C++ sources. 107 | 108 | -------------------------------------------------------------------------------- /clash/clash.go: -------------------------------------------------------------------------------- 1 | package clash 2 | 3 | import ( 4 | "fmt" 5 | "io/ioutil" 6 | "net" 7 | "os" 8 | "path/filepath" 9 | "strconv" 10 | 11 | "github.com/Dreamacro/clash/config" 12 | C "github.com/Dreamacro/clash/constant" 13 | _ "github.com/Dreamacro/clash/hub" 14 | "github.com/Dreamacro/clash/hub/executor" 15 | "github.com/Dreamacro/clash/tunnel/statistic" 16 | 17 | log "github.com/sirupsen/logrus" 18 | ) 19 | 20 | type ClashStartOptions struct { 21 | // HomeDir Clash config home directory 22 | HomeDir string 23 | // SocksListener Clash listener address and port 24 | SocksListener string 25 | // TrojanProxyServer Trojan proxy listening address and port 26 | TrojanProxyServer string 27 | // TrojanProxyServerUdpEnabled Whether UDP is enabled for Trojan Server 28 | TrojanProxyServerUdpEnabled bool 29 | } 30 | 31 | func Start(opt *ClashStartOptions) { 32 | homedir := opt.HomeDir 33 | if homedir != "" { 34 | if !filepath.IsAbs(homedir) { 35 | currentDir, _ := os.Getwd() 36 | homedir = filepath.Join(currentDir, homedir) 37 | } 38 | C.SetHomeDir(homedir) 39 | } 40 | 41 | configFile := filepath.Join(C.Path.HomeDir(), "config.yaml") 42 | C.SetConfig(configFile) 43 | 44 | if err := config.Init(C.Path.HomeDir()); err != nil { 45 | log.Fatalf("Initial configuration directory error: %s", err.Error()) 46 | } 47 | 48 | ApplyRawConfig(opt) 49 | return 50 | } 51 | 52 | func Stop() { 53 | snapshot := statistic.DefaultManager.Snapshot() 54 | for _, c := range snapshot.Connections { 55 | err := c.Close() 56 | if err != nil { 57 | log.Warnf("Clash Stop(): close conn err %v", err) 58 | } 59 | } 60 | 61 | opt := &ClashStartOptions{ 62 | SocksListener: "127.0.0.1:0", 63 | TrojanProxyServer: "127.0.0.1:0", 64 | TrojanProxyServerUdpEnabled: true, 65 | } 66 | ApplyRawConfig(opt) 67 | } 68 | 69 | func ApplyRawConfig(opt *ClashStartOptions) { 70 | 71 | // handle user input 72 | socksListenerHost, socksListenerPort, err := net.SplitHostPort(opt.SocksListener) 73 | if err != nil { 74 | log.Fatalf("SplitHostPort err: %v (%v)", err, opt.SocksListener) 75 | } 76 | if len(socksListenerHost) <= 0 { 77 | log.Fatalf("SplitHostPort host is empty: %v", socksListenerHost) 78 | } 79 | trojanProxyServerHost, trojanProxyServerPort, err := net.SplitHostPort(opt.TrojanProxyServer) 80 | if err != nil { 81 | log.Fatalf("SplitHostPort err: %v (%v)", err, opt.TrojanProxyServer) 82 | } 83 | if len(trojanProxyServerHost) <= 0 { 84 | log.Fatalf("SplitHostPort host is empty: %v", trojanProxyServerHost) 85 | } 86 | 87 | rawConfigBytes, err := readConfig(C.Path.Config()) 88 | if err != nil { 89 | log.Fatalf("fail to read Clash config file: %v", err) 90 | } 91 | rawCfg, err := config.UnmarshalRawConfig(rawConfigBytes) 92 | if err != nil { 93 | log.Fatalf("UnmarshalRawConfig: %v", err) 94 | } 95 | 96 | port, err := strconv.Atoi(socksListenerPort) 97 | if err != nil { 98 | log.Fatalf("fail to convert socksListenerPort %v", socksListenerPort) 99 | } 100 | if len(rawCfg.Proxy) <= 0 { 101 | log.Fatalf("should at least add one upstream proxy server") 102 | } 103 | 104 | rawCfg.AllowLan = true // whether we really use this feature is determined by BindAddress 105 | rawCfg.SocksPort = port 106 | rawCfg.BindAddress = socksListenerHost //default is * 107 | firstProxyServerMap := rawCfg.Proxy[0] 108 | //proxies: 109 | // - { name: "trojan", type: socks5, server: "127.0.0.1", port: 1081, udp: true} 110 | if firstProxyServerMap["type"] == "socks5" && firstProxyServerMap["name"] == "trojan" { 111 | firstProxyServerMap["server"] = trojanProxyServerHost 112 | firstProxyServerMap["port"] = trojanProxyServerPort 113 | firstProxyServerMap["udp"] = opt.TrojanProxyServerUdpEnabled 114 | } else { 115 | log.Fatalf("fail to find trojan proxy entry in Clash config") 116 | } 117 | 118 | cfg, err := config.ParseRawConfig(rawCfg) 119 | if err != nil { 120 | log.Fatalf("ParseRawConfig: %v", err) 121 | } 122 | 123 | executor.ApplyConfig(cfg, true) 124 | } 125 | 126 | func readConfig(path string) ([]byte, error) { 127 | if _, err := os.Stat(path); os.IsNotExist(err) { 128 | return nil, err 129 | } 130 | data, err := ioutil.ReadFile(path) 131 | if err != nil { 132 | return nil, err 133 | } 134 | 135 | if len(data) == 0 { 136 | return nil, fmt.Errorf("configuration file %s is empty", path) 137 | } 138 | 139 | return data, err 140 | } 141 | -------------------------------------------------------------------------------- /freeport/freeport.go: -------------------------------------------------------------------------------- 1 | // Taken from https://github.com/phayes/freeport 2 | package freeport 3 | 4 | import ( 5 | "net" 6 | ) 7 | 8 | // GetFreePort asks the kernel for a free open port that is ready to use. 9 | func GetFreePort() (int, error) { 10 | addr, err := net.ResolveTCPAddr("tcp", "localhost:0") 11 | if err != nil { 12 | return 0, err 13 | } 14 | 15 | l, err := net.ListenTCP("tcp", addr) 16 | if err != nil { 17 | return 0, err 18 | } 19 | defer l.Close() 20 | return l.Addr().(*net.TCPAddr).Port, nil 21 | } 22 | 23 | // GetFreePort asks the kernel for free open ports that are ready to use. 24 | func GetFreePorts(count int) ([]int, error) { 25 | var ports []int 26 | for i := 0; i < count; i++ { 27 | addr, err := net.ResolveTCPAddr("tcp", "localhost:0") 28 | if err != nil { 29 | return nil, err 30 | } 31 | 32 | l, err := net.ListenTCP("tcp", addr) 33 | if err != nil { 34 | return nil, err 35 | } 36 | defer l.Close() 37 | ports = append(ports, l.Addr().(*net.TCPAddr).Port) 38 | } 39 | return ports, nil 40 | } 41 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/trojan-gfw/igniter-go-libs 2 | 3 | go 1.17 4 | 5 | replace github.com/eycorsican/go-tun2socks => github.com/trojan-gfw/go-tun2socks v1.16.3-0.20210702214000-083d49176e05 6 | 7 | replace github.com/Dreamacro/clash => github.com/trojan-gfw/clash v0.19.1-0.20211219061034-20c830a2f459 8 | 9 | require ( 10 | github.com/Dreamacro/clash v0.0.0 11 | github.com/eycorsican/go-tun2socks v0.0.0 12 | github.com/sirupsen/logrus v1.8.1 13 | github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 14 | ) 15 | 16 | require ( 17 | github.com/Dreamacro/go-shadowsocks2 v0.1.7 // indirect 18 | github.com/djherbis/buffer v1.1.0 // indirect 19 | github.com/djherbis/nio v2.0.3+incompatible // indirect 20 | github.com/go-chi/chi/v5 v5.0.5 // indirect 21 | github.com/go-chi/cors v1.2.0 // indirect 22 | github.com/go-chi/render v1.0.1 // indirect 23 | github.com/gofrs/uuid v4.1.0+incompatible // indirect 24 | github.com/gorilla/websocket v1.4.2 // indirect 25 | github.com/hashicorp/golang-lru v0.5.4 // indirect 26 | github.com/insomniacslk/dhcp v0.0.0-20211026125128-ad197bcd36fd // indirect 27 | github.com/kr/pretty v0.1.0 // indirect 28 | github.com/miekg/dns v1.1.43 // indirect 29 | github.com/oschwald/geoip2-golang v1.5.0 // indirect 30 | github.com/oschwald/maxminddb-golang v1.8.0 // indirect 31 | github.com/u-root/uio v0.0.0-20210528114334-82958018845c // indirect 32 | github.com/v2pro/plz v0.0.0-20200805122259-422184e41b6e // indirect 33 | go.etcd.io/bbolt v1.3.6 // indirect 34 | go.uber.org/atomic v1.9.0 // indirect 35 | golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect 36 | golang.org/x/net v0.0.0-20211105192438-b53810dc28af // indirect 37 | golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect 38 | golang.org/x/sys v0.0.0-20211107104306-e0b2ad06fe42 // indirect 39 | golang.org/x/text v0.3.6 // indirect 40 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect 41 | gopkg.in/yaml.v2 v2.4.0 // indirect 42 | ) 43 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 2 | github.com/Dreamacro/go-shadowsocks2 v0.1.7 h1:8CtbE1HoPPMfrQZGXmlluq6dO2lL31W6WRRE8fabc4Q= 3 | github.com/Dreamacro/go-shadowsocks2 v0.1.7/go.mod h1:8p5G4cAj5ZlXwUR+Ww63gfSikr8kvw8uw3TDwLAJpUc= 4 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 5 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 6 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 7 | github.com/djherbis/buffer v1.1.0 h1:uGQ+DZDAMlfC2z3khbBtLcAHC0wyoNrX9lpOml3g3fg= 8 | github.com/djherbis/buffer v1.1.0/go.mod h1:VwN8VdFkMY0DCALdY8o00d3IZ6Amz/UNVMWcSaJT44o= 9 | github.com/djherbis/nio v2.0.3+incompatible h1:CidFHoR25he4511AIQ3RW9LH9XkLMOoNML8xd7R7Irc= 10 | github.com/djherbis/nio v2.0.3+incompatible/go.mod h1:v74owXPROGWsr1y28T13rlXf5Hn/bWJ1bbX8M+BqyPo= 11 | github.com/fanliao/go-promise v0.0.0-20141029170127-1890db352a72/go.mod h1:PjfxuH4FZdUyfMdtBio2lsRr1AKEaVPwelzuHuh8Lqc= 12 | github.com/go-chi/chi/v5 v5.0.5 h1:l3RJ8T8TAqLsXFfah+RA6N4pydMbPwSdvNM+AFWvLUM= 13 | github.com/go-chi/chi/v5 v5.0.5/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8= 14 | github.com/go-chi/cors v1.2.0 h1:tV1g1XENQ8ku4Bq3K9ub2AtgG+p16SmzeMSGTwrOKdE= 15 | github.com/go-chi/cors v1.2.0/go.mod h1:sSbTewc+6wYHBBCW7ytsFSn836hqM7JxpglAy2Vzc58= 16 | github.com/go-chi/render v1.0.1 h1:4/5tis2cKaNdnv9zFLfXzcquC9HbeZgCnxGnKrltBS8= 17 | github.com/go-chi/render v1.0.1/go.mod h1:pq4Rr7HbnsdaeHagklXub+p6Wd16Af5l9koip1OvJns= 18 | github.com/gofrs/uuid v4.1.0+incompatible h1:sIa2eCvUTwgjbqXrPLfNwUf9S3i3mpH1O1atV+iL/Wk= 19 | github.com/gofrs/uuid v4.1.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM= 20 | github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M= 21 | github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= 22 | github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= 23 | github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= 24 | github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= 25 | github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= 26 | github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY= 27 | github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc= 28 | github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= 29 | github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc= 30 | github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4= 31 | github.com/hugelgupf/socketpair v0.0.0-20190730060125-05d35a94e714/go.mod h1:2Goc3h8EklBH5mspfHFxBnEoURQCGzQQH1ga9Myjvis= 32 | github.com/insomniacslk/dhcp v0.0.0-20211026125128-ad197bcd36fd h1:jupbuQFZtwOBg/3EmK91/rGaYFkqCb9bwHOnwn7Cav0= 33 | github.com/insomniacslk/dhcp v0.0.0-20211026125128-ad197bcd36fd/go.mod h1:h+MxyHxRg9NH3terB1nfRIUaQEcI0XOVkdR9LNBlp8E= 34 | github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw= 35 | github.com/jsimonetti/rtnetlink v0.0.0-20200117123717-f846d4f6c1f4/go.mod h1:WGuG/smIU4J/54PblvSbh+xvCZmpJnFgr3ds6Z55XMQ= 36 | github.com/jsimonetti/rtnetlink v0.0.0-20201009170750-9c6f07d100c1/go.mod h1:hqoO/u39cqLeBLebZ8fWdE96O7FxrAsRYhnVOdgHxok= 37 | github.com/jsimonetti/rtnetlink v0.0.0-20201110080708-d2c240429e6c/go.mod h1:huN4d1phzjhlOsNIjFsw2SVRbwIHj3fJDMEU2SDPTmg= 38 | github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= 39 | github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU= 40 | github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI= 41 | github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= 42 | github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= 43 | github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE= 44 | github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= 45 | github.com/mdlayher/ethernet v0.0.0-20190606142754-0394541c37b7/go.mod h1:U6ZQobyTjI/tJyq2HG+i/dfSoFUt8/aZCM+GKtmFk/Y= 46 | github.com/mdlayher/netlink v0.0.0-20190409211403-11939a169225/go.mod h1:eQB3mZE4aiYnlUsyGGCOpPETfdQq4Jhsgf1fk3cwQaA= 47 | github.com/mdlayher/netlink v1.0.0/go.mod h1:KxeJAFOFLG6AjpyDkQ/iIhxygIUKD+vcwqcnu43w/+M= 48 | github.com/mdlayher/netlink v1.1.0/go.mod h1:H4WCitaheIsdF9yOYu8CFmCgQthAPIWZmcKp9uZHgmY= 49 | github.com/mdlayher/netlink v1.1.1/go.mod h1:WTYpFb/WTvlRJAyKhZL5/uy69TDDpHHu2VZmb2XgV7o= 50 | github.com/mdlayher/raw v0.0.0-20190606142536-fef19f00fc18/go.mod h1:7EpbotpCmVZcu+KCX4g9WaRNuu11uyhiW7+Le1dKawg= 51 | github.com/mdlayher/raw v0.0.0-20191009151244-50f2db8cc065/go.mod h1:7EpbotpCmVZcu+KCX4g9WaRNuu11uyhiW7+Le1dKawg= 52 | github.com/miekg/dns v1.1.43 h1:JKfpVSCB84vrAmHzyrsxB5NAr5kLoMXZArPSw7Qlgyg= 53 | github.com/miekg/dns v1.1.43/go.mod h1:+evo5L0630/F6ca/Z9+GAqzhjGyn8/c+TBaOyfEl0V4= 54 | github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= 55 | github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= 56 | github.com/oschwald/geoip2-golang v1.5.0 h1:igg2yQIrrcRccB1ytFXqBfOHCjXWIoMv85lVJ1ONZzw= 57 | github.com/oschwald/geoip2-golang v1.5.0/go.mod h1:xdvYt5xQzB8ORWFqPnqMwZpCpgNagttWdoZLlJQzg7s= 58 | github.com/oschwald/maxminddb-golang v1.8.0 h1:Uh/DSnGoxsyp/KYbY1AuP0tYEwfs0sCph9p/UMXK/Hk= 59 | github.com/oschwald/maxminddb-golang v1.8.0/go.mod h1:RXZtst0N6+FY/3qCNmZMBApR19cdQj43/NM9VkrNAis= 60 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= 61 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 62 | github.com/rakyll/statik v0.1.7/go.mod h1:AlZONWzMtEnMs7W4e/1LURLiI49pIMmp6V9Unghqrcc= 63 | github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE= 64 | github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0= 65 | github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc= 66 | github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA= 67 | github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 h1:TG/diQgUe0pntT/2D9tmUCz4VNwm9MfrtPr0SU2qSX8= 68 | github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8/go.mod h1:P5HUIBuIWKbyjl083/loAegFkfbFNx5i2qEP4CNbm7E= 69 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 70 | github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= 71 | github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= 72 | github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= 73 | github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 74 | github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY= 75 | github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 76 | github.com/trojan-gfw/clash v0.19.1-0.20211219061034-20c830a2f459 h1:1E67GgolqDb1n2dyCfIThkljZRAbfN1vndIiYHuODYc= 77 | github.com/trojan-gfw/clash v0.19.1-0.20211219061034-20c830a2f459/go.mod h1:yziyolrUu1J6iKCvkZwlcVNApZ5/+N4h81m9XD8vtuE= 78 | github.com/trojan-gfw/go-tun2socks v1.16.3-0.20210702214000-083d49176e05 h1:NyCeGCPhB19/yxuvXE+F+dTwjsKctXHRxYT0Go6jG0I= 79 | github.com/trojan-gfw/go-tun2socks v1.16.3-0.20210702214000-083d49176e05/go.mod h1:iSiwGqBOvfnMVjb+LVOCNygXUTGJ9gngIMp95x1sI9c= 80 | github.com/u-root/uio v0.0.0-20210528114334-82958018845c h1:BFvcl34IGnw8yvJi8hlqLFo9EshRInwWBs2M5fGWzQA= 81 | github.com/u-root/uio v0.0.0-20210528114334-82958018845c/go.mod h1:LpEX5FO/cB+WF4TYGY1V5qktpaZLkKkSegbr0V4eYXA= 82 | github.com/v2pro/plz v0.0.0-20200805122259-422184e41b6e h1:Vo4wf8YcHE9G7jD6eDG7au3nLGosOxm/DxQO7JR5dAk= 83 | github.com/v2pro/plz v0.0.0-20200805122259-422184e41b6e/go.mod h1:3gacX+hQo+xvl0vtLqCMufzxuNCwt4geAVOMt2LQYfE= 84 | go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU= 85 | go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4= 86 | go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE= 87 | go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc= 88 | go.uber.org/automaxprocs v1.4.0/go.mod h1:/mTEdr7LvHhs0v7mjdxDreTz1OG5zdZGqgOnhWiR/+Q= 89 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 90 | golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= 91 | golang.org/x/crypto v0.0.0-20210317152858-513c2a44f670/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4= 92 | golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg= 93 | golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= 94 | golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 95 | golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 96 | golang.org/x/net v0.0.0-20190419010253-1f3472d942ba/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 97 | golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks= 98 | golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 99 | golang.org/x/net v0.0.0-20191007182048-72f939374954/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 100 | golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 101 | golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= 102 | golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= 103 | golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= 104 | golang.org/x/net v0.0.0-20211105192438-b53810dc28af h1:SMeNJG/vclJ5wyBBd4xupMsSJIHTd1coW9g7q6KOjmY= 105 | golang.org/x/net v0.0.0-20211105192438-b53810dc28af/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= 106 | golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ= 107 | golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 108 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 109 | golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 110 | golang.org/x/sys v0.0.0-20190411185658-b44545bcd369/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 111 | golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 112 | golang.org/x/sys v0.0.0-20190418153312-f0ce4c0180be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 113 | golang.org/x/sys v0.0.0-20190606122018-79a91cf218c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 114 | golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 115 | golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 116 | golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 117 | golang.org/x/sys v0.0.0-20191224085550-c709ea063b76/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 118 | golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 119 | golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 120 | golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 121 | golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 122 | golang.org/x/sys v0.0.0-20201101102859-da207088b7d1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 123 | golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 124 | golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 125 | golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 126 | golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 127 | golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 128 | golang.org/x/sys v0.0.0-20211107104306-e0b2ad06fe42 h1:G2DDmludOQZoWbpCr7OKDxnl478ZBGMcOhrv+ooX/Q4= 129 | golang.org/x/sys v0.0.0-20211107104306-e0b2ad06fe42/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 130 | golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= 131 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 132 | golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 133 | golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M= 134 | golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 135 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 136 | golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= 137 | golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 138 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 139 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY= 140 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 141 | gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k= 142 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 143 | gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 144 | gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= 145 | gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= 146 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= 147 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 148 | -------------------------------------------------------------------------------- /tun2socks/tun2socks.go: -------------------------------------------------------------------------------- 1 | package tun2socks 2 | 3 | import ( 4 | "errors" 5 | "io" 6 | "net" 7 | "os" 8 | "strings" 9 | "time" 10 | 11 | "github.com/eycorsican/go-tun2socks/common/dns/cache" 12 | "github.com/eycorsican/go-tun2socks/common/dns/fakedns" 13 | "github.com/eycorsican/go-tun2socks/common/log" 14 | "github.com/eycorsican/go-tun2socks/common/log/simpleandroidlog" // Register a simple android logger. 15 | "github.com/eycorsican/go-tun2socks/component/pool" 16 | "github.com/eycorsican/go-tun2socks/component/runner" 17 | "github.com/eycorsican/go-tun2socks/core" 18 | "github.com/eycorsican/go-tun2socks/proxy/socks" 19 | 20 | "github.com/songgao/water" 21 | ) 22 | 23 | type Tun2socksStartOptions struct { 24 | TunFd int 25 | Socks5Server string 26 | FakeIPRange string 27 | MTU int 28 | EnableIPv6 bool 29 | AllowLan bool 30 | } 31 | 32 | var ( 33 | lwipWriter io.Writer 34 | lwipStack core.LWIPStack 35 | mtuUsed int 36 | lwipTUNDataPipeTask *runner.Task 37 | tunDev *water.Interface 38 | ) 39 | 40 | // Stop stop it 41 | func Stop() { 42 | log.Infof("enter stop") 43 | log.Infof("begin close tun") 44 | err := tunDev.Close() 45 | if err != nil { 46 | log.Infof("close tun(Stop func): %v", err) 47 | } 48 | if lwipTUNDataPipeTask.Running() { 49 | log.Infof("send stop lwipTUNDataPipeTask sig") 50 | lwipTUNDataPipeTask.Stop() 51 | log.Infof("lwipTUNDataPipeTask stop sig sent") 52 | <-lwipTUNDataPipeTask.StopChan() 53 | } else { 54 | log.Infof("lwipTUNDataPipeTask already stopped") 55 | } 56 | 57 | log.Infof("begin close lwipStack") 58 | lwipStack.Close(core.DELAY) 59 | } 60 | 61 | // hack to receive tunfd 62 | func openTunDevice(tunFd int) (*water.Interface, error) { 63 | file := os.NewFile(uintptr(tunFd), "tun") // dummy file path name since we already got the fd 64 | tunDev = &water.Interface{ 65 | ReadWriteCloser: file, 66 | } 67 | return tunDev, nil 68 | } 69 | 70 | // Start sets up lwIP stack, starts a Tun2socks instance 71 | func Start(opt *Tun2socksStartOptions) int { 72 | 73 | mtuUsed = opt.MTU 74 | var err error 75 | tunDev, err = openTunDevice(opt.TunFd) 76 | if err != nil { 77 | log.Fatalf("failed to open tun device: %v", err) 78 | } 79 | // handle previous lwIP stack 80 | if lwipStack != nil { 81 | log.Infof("begin close previous lwipStack") 82 | lwipStack.Close(core.INSTANT) 83 | } else { 84 | log.Infof("do NOT have to close previous lwipStack") 85 | } 86 | 87 | // Setup the lwIP stack. 88 | lwipStack = core.NewLWIPStack(opt.EnableIPv6, opt.AllowLan) 89 | lwipWriter = lwipStack.(io.Writer) 90 | 91 | // Register tun2socks connection handlers. 92 | proxyAddr, err := net.ResolveTCPAddr("tcp", opt.Socks5Server) 93 | proxyHost := proxyAddr.IP.String() 94 | proxyPort := uint16(proxyAddr.Port) 95 | if err != nil { 96 | log.Infof("invalid proxy server address: %v", err) 97 | return -1 98 | } 99 | cacheDNS := cache.NewSimpleDnsCache() 100 | if opt.FakeIPRange != "" { 101 | _, ipnet, err := net.ParseCIDR(opt.FakeIPRange) 102 | if err != nil { 103 | log.Fatalf("failed to parse fake ip range %v", opt.FakeIPRange) 104 | } 105 | fakeDNS := fakedns.NewFakeDNS(ipnet, 3000) 106 | core.RegisterTCPConnHandler(socks.NewTCPHandler(proxyHost, proxyPort, fakeDNS)) 107 | core.RegisterUDPConnHandler(socks.NewUDPHandler(proxyHost, proxyPort, 30*time.Second, cacheDNS, fakeDNS)) 108 | } else { 109 | core.RegisterTCPConnHandler(socks.NewTCPHandler(proxyHost, proxyPort, nil)) 110 | core.RegisterUDPConnHandler(socks.NewUDPHandler(proxyHost, proxyPort, 30*time.Second, cacheDNS, nil)) 111 | } 112 | 113 | // Register an output callback to write packets output from lwip stack to tun 114 | // device, output function should be set before input any packets. 115 | core.RegisterOutputFn(func(data []byte) (int, error) { 116 | // lwip -> tun 117 | return tunDev.Write(data) 118 | }) 119 | 120 | if lwipTUNDataPipeTask != nil && lwipTUNDataPipeTask.Running() { 121 | log.Infof("stop previous lwipTUNDataPipeTask sig") 122 | lwipTUNDataPipeTask.Stop() 123 | log.Infof("previous lwipTUNDataPipeTask stop sig sent") 124 | <-lwipTUNDataPipeTask.StopChan() 125 | } else { 126 | log.Infof("previous lwipTUNDataPipeTask already stopped or never being started") 127 | } 128 | 129 | lwipTUNDataPipeTask = runner.Go(func(shouldStop runner.S) error { 130 | // do setup 131 | // defer func(){ 132 | // // do teardown 133 | // }() 134 | zeroErr := errors.New("no error") 135 | maxErrorTimes := 20 136 | for { 137 | // NOTE: the for-loop here will retry when we find errors, 138 | // it gives up when we reach exceeded error times. 139 | // do some work here 140 | 141 | // tun -> lwip 142 | buf := pool.NewBytes(pool.BufSize) 143 | // NOTE: In general, when transfering the data, it blocks here until either end becomes invalid 144 | _, err := io.CopyBuffer(lwipWriter, tunDev, buf) 145 | pool.FreeBytes(buf) 146 | if err != nil { 147 | maxErrorTimes-- 148 | log.Infof("copying data failed: %v", err) 149 | } 150 | if shouldStop() { 151 | log.Infof("got DataPipe stop signal") 152 | break 153 | } 154 | if maxErrorTimes <= 0 { 155 | log.Infof("lwipTUNDataPipeTask returns due to exceeded error times") 156 | return err 157 | } 158 | } 159 | log.Infof("exit DataPipe loop") 160 | return zeroErr // any errors? 161 | }) 162 | 163 | log.Infof("Running tun2socks") 164 | 165 | return 0 166 | } 167 | 168 | // SetLoglevel set tun2socks log level 169 | // possible input: debug/info/warn/error/none 170 | func SetLoglevel(logLevel string) { 171 | // Set log level. 172 | switch strings.ToLower(logLevel) { 173 | case "debug": 174 | log.SetLevel(log.DEBUG) 175 | case "info": 176 | log.SetLevel(log.INFO) 177 | case "warn": 178 | log.SetLevel(log.WARN) 179 | case "error": 180 | log.SetLevel(log.ERROR) 181 | case "none": 182 | log.SetLevel(log.NONE) 183 | default: 184 | panic("unsupport logging level") 185 | } 186 | logger := simpleandroidlog.GetLogger() 187 | log.Infof("LogLevel: %v", logger.GetLevel()) 188 | } 189 | -------------------------------------------------------------------------------- /util/util.go: -------------------------------------------------------------------------------- 1 | package util 2 | 3 | import ( 4 | "bufio" 5 | "log" 6 | "runtime" 7 | ) 8 | 9 | const ( 10 | // logcat is line-buffered 11 | LogLineBufLen int = 1024 12 | MaxLogBufLen int = 16 * 1024 * 1024 13 | ) 14 | 15 | func init() { 16 | log.SetPrefix("igniter-golib-log: ") 17 | } 18 | 19 | // LogGoRoutineCount log goroutine count to logcat on android 20 | func LogGoRoutineCount() { 21 | num := runtime.NumGoroutine() 22 | log.Printf("goroutine num: %d\n", num) 23 | } 24 | 25 | // LogGoroutineStackTrace log goroutine stack trace to logcat on android 26 | func LogGoroutineStackTrace() { 27 | var err error 28 | bufferedWriter := bufio.NewWriterSize(log.Writer(), LogLineBufLen) 29 | buf := make([]byte, MaxLogBufLen) 30 | buf = buf[:runtime.Stack(buf, true)] 31 | bufferedWriter.WriteString("=== BEGIN goroutine stack dump ===\n") 32 | total := len(buf) 33 | start := 0 34 | end := 0 35 | remaining := total 36 | if remaining >= LogLineBufLen { 37 | end += LogLineBufLen 38 | } else { 39 | end += remaining 40 | } 41 | 42 | log.Printf("buf len is %d\n", total) 43 | for { 44 | nn, err := bufferedWriter.Write(buf[start:end]) 45 | if err != nil { 46 | panic(err) 47 | } 48 | start += nn 49 | remaining -= nn 50 | if remaining <= 0 { 51 | break 52 | } 53 | if remaining >= LogLineBufLen { 54 | end = start + LogLineBufLen 55 | } else { 56 | end = start + remaining 57 | } 58 | } 59 | 60 | bufferedWriter.WriteString("\n=== END goroutine stack dump ===\n") 61 | err = bufferedWriter.Flush() 62 | if err != nil { 63 | panic(err) 64 | } 65 | } 66 | --------------------------------------------------------------------------------