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Merge pull request #139 from neilalexander/yggdrasilconf

Add yggdrasilconf for testing with vyatta-yggdrasil
This commit is contained in:
Neil Alexander 2018-06-21 16:07:25 +01:00 committed by GitHub
commit 7a19507665
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package main
/*
This is a small utility that is designed to accompany the vyatta-yggdrasil
package. It takes a HJSON configuration file, makes changes to it based on
the command line arguments, and then spits out an updated file.
*/
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"strconv"
"golang.org/x/text/encoding/unicode"
"github.com/neilalexander/hjson-go"
"yggdrasil/config"
)
type nodeConfig = config.NodeConfig
func main() {
useconffile := flag.String("useconffile", "/etc/yggdrasil.conf", "update config at specified file path")
flag.Parse()
cfg := nodeConfig{}
var config []byte
var err error
config, err = ioutil.ReadFile(*useconffile)
if err != nil {
panic(err)
}
if bytes.Compare(config[0:2], []byte{0xFF, 0xFE}) == 0 ||
bytes.Compare(config[0:2], []byte{0xFE, 0xFF}) == 0 {
utf := unicode.UTF16(unicode.BigEndian, unicode.UseBOM)
decoder := utf.NewDecoder()
config, err = decoder.Bytes(config)
if err != nil {
panic(err)
}
}
var dat map[string]interface{}
if err := hjson.Unmarshal(config, &dat); err != nil {
panic(err)
}
confJson, err := json.Marshal(dat)
if err != nil {
panic(err)
}
json.Unmarshal(confJson, &cfg)
switch flag.Arg(0) {
case "setMTU":
cfg.IfMTU, err = strconv.Atoi(flag.Arg(1))
if err != nil {
cfg.IfMTU = 1280
}
if mtu, _ := strconv.Atoi(flag.Arg(1)); mtu < 1280 {
cfg.IfMTU = 1280
}
case "setIfName":
cfg.IfName = flag.Arg(1)
case "setListen":
cfg.Listen = flag.Arg(1)
case "setAdminListen":
cfg.AdminListen = flag.Arg(1)
case "setIfTapMode":
if flag.Arg(1) == "true" {
cfg.IfTAPMode = true
} else {
cfg.IfTAPMode = false
}
case "addPeer":
found := false
for _, v := range cfg.Peers {
if v == flag.Arg(1) {
found = true
}
}
if !found {
cfg.Peers = append(cfg.Peers, flag.Arg(1))
}
case "removePeer":
for k, v := range cfg.Peers {
if v == flag.Arg(1) {
cfg.Peers = append(cfg.Peers[:k], cfg.Peers[k+1:]...)
}
}
}
bs, err := hjson.Marshal(cfg)
if err != nil {
panic(err)
}
fmt.Println(string(bs))
return
}