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