mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-25 23:01:38 +00:00
commit
e2d739f646
20
build
20
build
@ -1,11 +1,25 @@
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#!/bin/sh
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while getopts ud option
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do
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case "${option}"
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in
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u) UPX=true;;
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d) DEBUG=true;;
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esac
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done
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export GOPATH=$PWD
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echo "Downloading..."
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go get -d -v
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go get -d -v yggdrasil
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for file in *.go ; do
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echo "Building: $file"
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go build $@ $file
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#go build -ldflags="-s -w" -v $file
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#upx --brute ${file/.go/}
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#go build $@ $file
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if [ $DEBUG ]; then
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go build -tags debug -v $file
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else
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go build -ldflags="-s -w" -v $file
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fi
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if [ $UPX ]; then
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upx --brute ${file%.go}
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fi
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done
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97
contrib/config/yggdrasilconf.go
Normal file
97
contrib/config/yggdrasilconf.go
Normal file
@ -0,0 +1,97 @@
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package main
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/*
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This is a small utility that is designed to accompany the vyatta-yggdrasil
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package. It takes a HJSON configuration file, makes changes to it based on
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the command line arguments, and then spits out an updated file.
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*/
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import (
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"bytes"
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"strconv"
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"github.com/neilalexander/hjson-go"
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"golang.org/x/text/encoding/unicode"
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"yggdrasil/config"
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)
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type nodeConfig = config.NodeConfig
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func main() {
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useconffile := flag.String("useconffile", "/etc/yggdrasil.conf", "update config at specified file path")
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flag.Parse()
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cfg := nodeConfig{}
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var config []byte
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var err error
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config, err = ioutil.ReadFile(*useconffile)
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if err != nil {
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panic(err)
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}
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if bytes.Compare(config[0:2], []byte{0xFF, 0xFE}) == 0 ||
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bytes.Compare(config[0:2], []byte{0xFE, 0xFF}) == 0 {
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utf := unicode.UTF16(unicode.BigEndian, unicode.UseBOM)
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decoder := utf.NewDecoder()
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config, err = decoder.Bytes(config)
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if err != nil {
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panic(err)
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}
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}
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var dat map[string]interface{}
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if err := hjson.Unmarshal(config, &dat); err != nil {
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panic(err)
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}
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confJson, err := json.Marshal(dat)
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if err != nil {
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panic(err)
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}
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json.Unmarshal(confJson, &cfg)
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switch flag.Arg(0) {
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case "setMTU":
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cfg.IfMTU, err = strconv.Atoi(flag.Arg(1))
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if err != nil {
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cfg.IfMTU = 1280
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}
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if mtu, _ := strconv.Atoi(flag.Arg(1)); mtu < 1280 {
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cfg.IfMTU = 1280
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}
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case "setIfName":
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cfg.IfName = flag.Arg(1)
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case "setListen":
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cfg.Listen = flag.Arg(1)
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case "setAdminListen":
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cfg.AdminListen = flag.Arg(1)
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case "setIfTapMode":
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if flag.Arg(1) == "true" {
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cfg.IfTAPMode = true
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} else {
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cfg.IfTAPMode = false
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}
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case "addPeer":
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found := false
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for _, v := range cfg.Peers {
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if v == flag.Arg(1) {
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found = true
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}
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}
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if !found {
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cfg.Peers = append(cfg.Peers, flag.Arg(1))
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}
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case "removePeer":
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for k, v := range cfg.Peers {
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if v == flag.Arg(1) {
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cfg.Peers = append(cfg.Peers[:k], cfg.Peers[k+1:]...)
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}
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}
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}
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bs, err := hjson.Marshal(cfg)
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if err != nil {
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panic(err)
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}
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fmt.Println(string(bs))
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return
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}
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@ -20,6 +20,20 @@ import "regexp"
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import _ "net/http/pprof"
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import "net/http"
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import "runtime"
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import "os"
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// Start the profiler in debug builds, if the required environment variable is set.
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func init() {
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envVarName := "PPROFLISTEN"
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hostPort := os.Getenv(envVarName)
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switch {
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case hostPort == "":
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fmt.Printf("DEBUG: %s not set, profiler not started.\n", envVarName)
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default:
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fmt.Printf("DEBUG: Starting pprof on %s\n", hostPort)
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go func() { fmt.Println(http.ListenAndServe(hostPort, nil)) }()
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}
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}
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// Starts the function profiler. This is only supported when built with
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// '-tags build'.
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@ -1,14 +0,0 @@
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// +build !debug
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package yggdrasil
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import (
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"errors"
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"log"
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)
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// Starts the function profiler. This is only supported when built with
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// '-tags build'.
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func StartProfiler(_ *log.Logger) error {
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return errors.New("Release builds do not support -pprof, build using '-tags debug'")
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}
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@ -17,6 +17,7 @@ package yggdrasil
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import (
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"errors"
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"fmt"
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"math/rand"
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"net"
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"sync"
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"sync/atomic"
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@ -112,6 +113,7 @@ func (iface *tcpInterface) call(saddr string, socksaddr *string) {
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defer func() {
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// Block new calls for a little while, to mitigate livelock scenarios
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time.Sleep(tcp_timeout)
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time.Sleep(time.Duration(rand.Intn(1000)) * time.Millisecond)
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iface.mutex.Lock()
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delete(iface.calls, saddr)
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iface.mutex.Unlock()
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// The main function is responsible for configuring and starting Yggdrasil.
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func main() {
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// Configure the command line parameters.
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pprof := flag.Bool("pprof", false, "Run pprof, see http://localhost:6060/debug/pprof/")
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genconf := flag.Bool("genconf", false, "print a new config to stdout")
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useconf := flag.Bool("useconf", false, "read config from stdin")
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useconffile := flag.String("useconffile", "", "read config from specified file path")
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@ -203,12 +202,6 @@ func main() {
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}
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// Create a new logger that logs output to stdout.
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logger := log.New(os.Stdout, "", log.Flags())
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// If the -pprof flag was provided then start the pprof service on port 6060.
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if *pprof {
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if err := yggdrasil.StartProfiler(logger); err != nil {
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logger.Println(err)
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}
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}
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// Setup the Yggdrasil node itself. The node{} type includes a Core, so we
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// don't need to create this manually.
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n := node{}
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