spawn-hotspot.go

package main

import (
	"github.com/godbus/dbus"
	"go.uber.org/zap"
)

const hotspotConnectionUUID = "45b366f6-e56c-4b46-8699-e5fb62ce292e"

const (
	serviceName = "org.freedesktop.NetworkManager"
	settings    = "org.freedesktop.NetworkManager.Settings"
	settingsObjPath = "/org/freedesktop/NetworkManager/Settings"
)

var connData = map[string]interface{}{
	"type": "802-11-wireless",
	"uuid": hotspotConnectionUUID,
	"id":   "AutomatedHotspot",
}

var wifiData = map[string]interface{}{
	"ssid":    []byte("ThinkPad"),
	"mode":    "ap",
	"band":    "bg",
	"channel": uint32(6),
}

var wifiSecData = map[string]interface{}{
	"key-mgmt": "wpa-psk",
	"psk":      "great-password",
}

var addrData = []map[string]interface{}{
	{
		"address": "172.24.1.1",
		"prefix":  uint32(24),
	},
}

var ipv4Data = map[string]interface{}{
	"method":       "shared",
	"address-data": addrData,
	"gateway":      "172.24.1.1",
}

var ipv6Data = map[string]interface{}{
	"method": "ignore",
}

var con = map[string]map[string]interface{} {
	"connection":               connData,
	"802-11-wireless":          wifiData,
	"802-11-wireless-security": wifiSecData,
	"ipv4":                     ipv4Data,
	"ipv6":                     ipv6Data,
}

func main() {
	logger := zap.NewExample()

	bus, err := dbus.SystemBus()
	if err != nil {
		logger.Fatal("unable to get system bus", zap.Error(err))
	}
	settingsObj := bus.Object(serviceName, settingsObjPath)
	addRes := settingsObj.Call(settings + ".AddConnection", 0, con)
	if addRes.Err != nil {
		logger.Fatal("unable to add connection", zap.Error(err))
	}
	logger.Info("add connection result", zap.Any("body", addRes.Body))
}