mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-22 17:40:26 +00:00
458 lines
13 KiB
Go
458 lines
13 KiB
Go
package main
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import (
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"bytes"
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"encoding/json"
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"errors"
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"flag"
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"fmt"
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"log"
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"net"
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"net/url"
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"os"
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"sort"
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"strconv"
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"strings"
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"github.com/yggdrasil-network/yggdrasil-go/src/version"
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)
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type admin_info map[string]interface{}
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func main() {
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// makes sure we can use defer and still return an error code to the OS
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os.Exit(run())
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}
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func run() int {
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logbuffer := &bytes.Buffer{}
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logger := log.New(logbuffer, "", log.Flags())
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defer func() int {
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if r := recover(); r != nil {
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logger.Println("Fatal error:", r)
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fmt.Print(logbuffer)
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return 1
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}
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return 0
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}()
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cmdLineEnv := newCmdLineEnv()
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cmdLineEnv.parseFlagsAndArgs()
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if cmdLineEnv.ver {
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fmt.Println("Build name:", version.BuildName())
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fmt.Println("Build version:", version.BuildVersion())
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fmt.Println("To get the version number of the running Yggdrasil node, run", os.Args[0], "getSelf")
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return 0
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}
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if len(cmdLineEnv.args) == 0 {
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flag.Usage()
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return 0
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}
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cmdLineEnv.setEndpoint(logger)
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conn := connect(cmdLineEnv.endpoint, logger)
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logger.Println("Connected")
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defer conn.Close()
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decoder := json.NewDecoder(conn)
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encoder := json.NewEncoder(conn)
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send := make(admin_info)
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recv := make(admin_info)
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for c, a := range cmdLineEnv.args {
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if c == 0 {
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if strings.HasPrefix(a, "-") {
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logger.Printf("Ignoring flag %s as it should be specified before other parameters\n", a)
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continue
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}
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logger.Printf("Sending request: %v\n", a)
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send["request"] = a
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continue
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}
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tokens := strings.Split(a, "=")
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if len(tokens) == 1 {
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send[tokens[0]] = true
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} else if len(tokens) > 2 {
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send[tokens[0]] = strings.Join(tokens[1:], "=")
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} else if len(tokens) == 2 {
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if i, err := strconv.Atoi(tokens[1]); err == nil {
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logger.Printf("Sending parameter %s: %d\n", tokens[0], i)
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send[tokens[0]] = i
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} else {
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switch strings.ToLower(tokens[1]) {
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case "true":
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send[tokens[0]] = true
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case "false":
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send[tokens[0]] = false
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default:
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send[tokens[0]] = tokens[1]
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}
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logger.Printf("Sending parameter %s: %v\n", tokens[0], send[tokens[0]])
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}
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}
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}
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if err := encoder.Encode(&send); err != nil {
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panic(err)
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}
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logger.Printf("Request sent")
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if err := decoder.Decode(&recv); err == nil {
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logger.Printf("Response received")
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if recv["status"] == "error" {
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if err, ok := recv["error"]; ok {
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fmt.Println("Admin socket returned an error:", err)
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} else {
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fmt.Println("Admin socket returned an error but didn't specify any error text")
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}
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return 1
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}
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if _, ok := recv["request"]; !ok {
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fmt.Println("Missing request in response (malformed response?)")
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return 1
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}
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if _, ok := recv["response"]; !ok {
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fmt.Println("Missing response body (malformed response?)")
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return 1
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}
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res := recv["response"].(map[string]interface{})
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if cmdLineEnv.injson {
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if json, err := json.MarshalIndent(res, "", " "); err == nil {
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fmt.Println(string(json))
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}
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return 0
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}
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handleAll(recv, cmdLineEnv.verbose)
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} else {
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logger.Println("Error receiving response:", err)
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}
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if v, ok := recv["status"]; ok && v != "success" {
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return 1
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}
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return 0
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}
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func connect(endpoint string, logger *log.Logger) net.Conn {
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var conn net.Conn
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u, err := url.Parse(endpoint)
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if err == nil {
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switch strings.ToLower(u.Scheme) {
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case "unix":
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logger.Println("Connecting to UNIX socket", endpoint[7:])
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conn, err = net.Dial("unix", endpoint[7:])
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case "tcp":
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logger.Println("Connecting to TCP socket", u.Host)
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conn, err = net.Dial("tcp", u.Host)
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default:
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logger.Println("Unknown protocol or malformed address - check your endpoint")
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err = errors.New("protocol not supported")
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}
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} else {
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logger.Println("Connecting to TCP socket", u.Host)
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conn, err = net.Dial("tcp", endpoint)
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}
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if err != nil {
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panic(err)
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}
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return conn
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}
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func handleAll(recv map[string]interface{}, verbose bool) {
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req := recv["request"].(map[string]interface{})
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res := recv["response"].(map[string]interface{})
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switch strings.ToLower(req["request"].(string)) {
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case "dot":
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handleDot(res)
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case "list", "getpeers", "getswitchpeers", "getdht", "getsessions", "dhtping":
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handleVariousInfo(res, verbose)
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case "gettuntap", "settuntap":
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handleGetAndSetTunTap(res)
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case "getself":
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handleGetSelf(res, verbose)
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case "getswitchqueues":
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handleGetSwitchQueues(res)
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case "addpeer", "removepeer", "addallowedencryptionpublickey", "removeallowedencryptionpublickey", "addsourcesubnet", "addroute", "removesourcesubnet", "removeroute":
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handleAddsAndRemoves(res)
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case "getallowedencryptionpublickeys":
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handleGetAllowedEncryptionPublicKeys(res)
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case "getmulticastinterfaces":
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handleGetMulticastInterfaces(res)
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case "getsourcesubnets":
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handleGetSourceSubnets(res)
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case "getroutes":
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handleGetRoutes(res)
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case "settunnelrouting":
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fallthrough
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case "gettunnelrouting":
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handleGetTunnelRouting(res)
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default:
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if json, err := json.MarshalIndent(recv["response"], "", " "); err == nil {
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fmt.Println(string(json))
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}
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}
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}
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func handleDot(res map[string]interface{}) {
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fmt.Println(res["dot"])
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}
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func handleVariousInfo(res map[string]interface{}, verbose bool) {
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maxWidths := make(map[string]int)
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var keyOrder []string
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keysOrdered := false
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for _, tlv := range res {
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for slk, slv := range tlv.(map[string]interface{}) {
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if !keysOrdered {
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for k := range slv.(map[string]interface{}) {
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if !verbose {
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if k == "box_pub_key" || k == "box_sig_key" || k == "nodeinfo" || k == "was_mtu_fixed" {
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continue
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}
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}
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keyOrder = append(keyOrder, fmt.Sprint(k))
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}
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sort.Strings(keyOrder)
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keysOrdered = true
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}
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for k, v := range slv.(map[string]interface{}) {
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if len(fmt.Sprint(slk)) > maxWidths["key"] {
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maxWidths["key"] = len(fmt.Sprint(slk))
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}
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if len(fmt.Sprint(v)) > maxWidths[k] {
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maxWidths[k] = len(fmt.Sprint(v))
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if maxWidths[k] < len(k) {
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maxWidths[k] = len(k)
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}
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}
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}
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}
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if len(keyOrder) > 0 {
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fmt.Printf("%-"+fmt.Sprint(maxWidths["key"])+"s ", "")
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for _, v := range keyOrder {
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fmt.Printf("%-"+fmt.Sprint(maxWidths[v])+"s ", v)
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}
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fmt.Println()
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}
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for slk, slv := range tlv.(map[string]interface{}) {
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fmt.Printf("%-"+fmt.Sprint(maxWidths["key"])+"s ", slk)
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for _, k := range keyOrder {
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preformatted := slv.(map[string]interface{})[k]
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var formatted string
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switch k {
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case "bytes_sent", "bytes_recvd":
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formatted = fmt.Sprintf("%d", uint(preformatted.(float64)))
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case "uptime", "last_seen":
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seconds := uint(preformatted.(float64)) % 60
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minutes := uint(preformatted.(float64)/60) % 60
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hours := uint(preformatted.(float64) / 60 / 60)
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formatted = fmt.Sprintf("%02d:%02d:%02d", hours, minutes, seconds)
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default:
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formatted = fmt.Sprint(preformatted)
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}
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fmt.Printf("%-"+fmt.Sprint(maxWidths[k])+"s ", formatted)
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}
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fmt.Println()
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}
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}
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}
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func handleGetAndSetTunTap(res map[string]interface{}) {
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for k, v := range res {
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fmt.Println("Interface name:", k)
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if mtu, ok := v.(map[string]interface{})["mtu"].(float64); ok {
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fmt.Println("Interface MTU:", mtu)
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}
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if tap_mode, ok := v.(map[string]interface{})["tap_mode"].(bool); ok {
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fmt.Println("TAP mode:", tap_mode)
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}
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}
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}
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func handleGetSelf(res map[string]interface{}, verbose bool) {
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for k, v := range res["self"].(map[string]interface{}) {
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if buildname, ok := v.(map[string]interface{})["build_name"].(string); ok && buildname != "unknown" {
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fmt.Println("Build name:", buildname)
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}
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if buildversion, ok := v.(map[string]interface{})["build_version"].(string); ok && buildversion != "unknown" {
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fmt.Println("Build version:", buildversion)
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}
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fmt.Println("IPv6 address:", k)
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if subnet, ok := v.(map[string]interface{})["subnet"].(string); ok {
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fmt.Println("IPv6 subnet:", subnet)
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}
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if boxSigKey, ok := v.(map[string]interface{})["key"].(string); ok {
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fmt.Println("Public key:", boxSigKey)
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}
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if coords, ok := v.(map[string]interface{})["coords"].([]interface{}); ok {
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fmt.Println("Coords:", coords)
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}
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if verbose {
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if nodeID, ok := v.(map[string]interface{})["node_id"].(string); ok {
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fmt.Println("Node ID:", nodeID)
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}
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if boxPubKey, ok := v.(map[string]interface{})["box_pub_key"].(string); ok {
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fmt.Println("Public encryption key:", boxPubKey)
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}
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if boxSigKey, ok := v.(map[string]interface{})["box_sig_key"].(string); ok {
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fmt.Println("Public signing key:", boxSigKey)
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}
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}
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}
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}
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func handleGetSwitchQueues(res map[string]interface{}) {
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maximumqueuesize := float64(4194304)
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portqueues := make(map[float64]float64)
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portqueuesize := make(map[float64]float64)
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portqueuepackets := make(map[float64]float64)
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v := res["switchqueues"].(map[string]interface{})
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if queuecount, ok := v["queues_count"].(float64); ok {
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fmt.Printf("Active queue count: %d queues\n", uint(queuecount))
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}
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if queuesize, ok := v["queues_size"].(float64); ok {
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fmt.Printf("Active queue size: %d bytes\n", uint(queuesize))
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}
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if highestqueuecount, ok := v["highest_queues_count"].(float64); ok {
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fmt.Printf("Highest queue count: %d queues\n", uint(highestqueuecount))
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}
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if highestqueuesize, ok := v["highest_queues_size"].(float64); ok {
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fmt.Printf("Highest queue size: %d bytes\n", uint(highestqueuesize))
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}
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if m, ok := v["maximum_queues_size"].(float64); ok {
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maximumqueuesize = m
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fmt.Printf("Maximum queue size: %d bytes\n", uint(maximumqueuesize))
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}
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if queues, ok := v["queues"].([]interface{}); ok {
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if len(queues) != 0 {
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fmt.Println("Active queues:")
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for _, v := range queues {
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queueport := v.(map[string]interface{})["queue_port"].(float64)
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queuesize := v.(map[string]interface{})["queue_size"].(float64)
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queuepackets := v.(map[string]interface{})["queue_packets"].(float64)
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queueid := v.(map[string]interface{})["queue_id"].(string)
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portqueues[queueport]++
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portqueuesize[queueport] += queuesize
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portqueuepackets[queueport] += queuepackets
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queuesizepercent := (100 / maximumqueuesize) * queuesize
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fmt.Printf("- Switch port %d, Stream ID: %v, size: %d bytes (%d%% full), %d packets\n",
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uint(queueport), []byte(queueid), uint(queuesize),
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uint(queuesizepercent), uint(queuepackets))
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}
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}
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}
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if len(portqueuesize) > 0 && len(portqueuepackets) > 0 {
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fmt.Println("Aggregated statistics by switchport:")
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for k, v := range portqueuesize {
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queuesizepercent := (100 / (portqueues[k] * maximumqueuesize)) * v
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fmt.Printf("- Switch port %d, size: %d bytes (%d%% full), %d packets\n",
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uint(k), uint(v), uint(queuesizepercent), uint(portqueuepackets[k]))
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}
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}
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}
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func handleAddsAndRemoves(res map[string]interface{}) {
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if _, ok := res["added"]; ok {
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for _, v := range res["added"].([]interface{}) {
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fmt.Println("Added:", fmt.Sprint(v))
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}
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}
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if _, ok := res["not_added"]; ok {
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for _, v := range res["not_added"].([]interface{}) {
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fmt.Println("Not added:", fmt.Sprint(v))
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}
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}
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if _, ok := res["removed"]; ok {
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for _, v := range res["removed"].([]interface{}) {
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fmt.Println("Removed:", fmt.Sprint(v))
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}
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}
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if _, ok := res["not_removed"]; ok {
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for _, v := range res["not_removed"].([]interface{}) {
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fmt.Println("Not removed:", fmt.Sprint(v))
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}
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}
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}
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func handleGetAllowedEncryptionPublicKeys(res map[string]interface{}) {
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if _, ok := res["allowed_box_pubs"]; !ok {
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fmt.Println("All connections are allowed")
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} else if res["allowed_box_pubs"] == nil {
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fmt.Println("All connections are allowed")
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} else {
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fmt.Println("Connections are allowed only from the following public box keys:")
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for _, v := range res["allowed_box_pubs"].([]interface{}) {
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fmt.Println("-", v)
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}
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}
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}
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func handleGetMulticastInterfaces(res map[string]interface{}) {
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if _, ok := res["multicast_interfaces"]; !ok {
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fmt.Println("No multicast interfaces found")
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} else if res["multicast_interfaces"] == nil {
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fmt.Println("No multicast interfaces found")
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} else {
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fmt.Println("Multicast peer discovery is active on:")
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for _, v := range res["multicast_interfaces"].([]interface{}) {
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fmt.Println("-", v)
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}
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}
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}
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func handleGetSourceSubnets(res map[string]interface{}) {
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if _, ok := res["source_subnets"]; !ok {
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fmt.Println("No source subnets found")
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} else if res["source_subnets"] == nil {
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fmt.Println("No source subnets found")
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} else {
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fmt.Println("Source subnets:")
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for _, v := range res["source_subnets"].([]interface{}) {
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fmt.Println("-", v)
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}
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}
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}
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func handleGetRoutes(res map[string]interface{}) {
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if routes, ok := res["routes"].(map[string]interface{}); !ok {
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fmt.Println("No routes found")
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} else {
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if res["routes"] == nil || len(routes) == 0 {
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fmt.Println("No routes found")
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} else {
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fmt.Println("Routes:")
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for k, v := range routes {
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if pv, ok := v.(string); ok {
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fmt.Println("-", k, " via ", pv)
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}
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}
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}
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}
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}
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func handleGetTunnelRouting(res map[string]interface{}) {
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if enabled, ok := res["enabled"].(bool); !ok {
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fmt.Println("Tunnel routing is disabled")
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} else if !enabled {
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fmt.Println("Tunnel routing is disabled")
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} else {
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fmt.Println("Tunnel routing is enabled")
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}
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}
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