mini controller
This commit is contained in:
parent
5cea0a4ca2
commit
7ed85511b0
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@ -95,6 +95,7 @@ func (coll *Collector) parser() {
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log.Warnf("unable to unmarshal request from %s: %s", obj.Address.String(), err)
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continue
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}
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log.Debugf("recv[%s]: %s", obj.Address, msg.String())
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response, err := coll.handler(obj.Address, msg)
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if err != nil {
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log.Warnf("unable to handle request from %s: %s", obj.Address.String(), err)
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@ -108,6 +109,7 @@ func (coll *Collector) parser() {
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// SendTo a specifical address
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func (coll *Collector) SendTo(addr *net.UDPAddr, msg *data.SocketMSG) {
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log.Debugf("send[%s]: %s", addr, msg.String())
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data, err := msg.Marshal()
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if err != nil {
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log.Warnf("unable to marshal response for %s: %s", addr.String(), err)
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@ -125,6 +127,7 @@ func (coll *Collector) SendTo(addr *net.UDPAddr, msg *data.SocketMSG) {
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// Send to every connection to default address
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func (coll *Collector) Send(msg *data.SocketMSG) {
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log.Debugf("send: %s", msg.String())
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data, err := msg.Marshal()
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if err != nil {
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log.Warnf("unable to marshal response: %s", err)
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@ -0,0 +1,67 @@
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package cmd
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import (
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"os"
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"os/signal"
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"strings"
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"syscall"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"dev.sum7.eu/wifictld/analyzer/capture"
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"dev.sum7.eu/wifictld/analyzer/controller"
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"dev.sum7.eu/wifictld/analyzer/database"
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)
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var (
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central bool
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)
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// queryCmd represents the query command
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var controllerCmd = &cobra.Command{
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Use: "controller <interfaces>",
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Short: "simulate a wifictld controller",
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Example: `analyzer controller "eth0,wlan0"`,
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Args: cobra.ExactArgs(1),
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Run: func(cmd *cobra.Command, args []string) {
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ifaces := strings.Split(args[0], ",")
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log.Infof("listen on: %s", ifaces)
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var ifacesConfigs []capture.IFaceConfig
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for _, iface := range ifaces {
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ifaceConfig := capture.IFaceConfig{
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InterfaceName: iface,
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Port: port,
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IPAddress: ipAddress,
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}
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ifacesConfigs = append(ifacesConfigs, ifaceConfig)
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}
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db := database.NewDB()
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ctr := controller.NewController(db, central)
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defer ctr.Close()
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coll := capture.NewCollector(ctr.Handler, ifacesConfigs)
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defer coll.Close()
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ctr.Send = coll.Send
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ctr.SendTo = coll.SendTo
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// Wait for INT/TERM
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sigs := make(chan os.Signal, 1)
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signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
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sig := <-sigs
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log.Println("received", sig)
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},
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}
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func init() {
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RootCmd.AddCommand(controllerCmd)
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controllerCmd.Flags().IntVar(&port, "port", capture.Port, "define a port to listen (if not set or set to 0 the kernel will use a random free port at its own)")
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controllerCmd.Flags().StringVar(&ipAddress, "listen", capture.MulticastAddressDefault, "")
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controllerCmd.Flags().BoolVar(¢ral, "central", false, "")
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}
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@ -40,6 +40,8 @@ var dumpCmd = &cobra.Command{
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ifacesConfigs = append(ifacesConfigs, ifaceConfig)
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}
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data.DEBUG = debug
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coll := capture.NewCollector(func(addr *net.UDPAddr, msg *data.SocketMSG) (*data.SocketMSG, error) {
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log.Infof("recv[%s]: %s", addr, msg.String())
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return nil, nil
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@ -0,0 +1,29 @@
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package controller
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import (
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"net"
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// log "github.com/sirupsen/logrus"
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"dev.sum7.eu/wifictld/analyzer/data"
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)
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func (c *Controller) Handler(addr *net.UDPAddr, msg *data.SocketMSG) (*data.SocketMSG, error) {
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ignore := false
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if msg.Types.Is(data.SocketMSGTypeClient) && msg.Client != nil {
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ignore = c.db.LearnClient(addr.IP, msg.Client)
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}
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if !msg.Types.Is(data.SocketMSGTypeRequest) {
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return nil, nil
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}
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msg = &data.SocketMSG{
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Types: (data.SocketMSGTypeResponse | data.SocketMSGTypeClient),
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Client: c.db.GetClient(msg.Client.Addr),
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}
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if c.central || !ignore {
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return msg, nil
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}
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return nil, nil
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}
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@ -0,0 +1,39 @@
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package controller
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import (
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"net"
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"time"
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log "github.com/sirupsen/logrus"
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"dev.sum7.eu/wifictld/analyzer/data"
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"dev.sum7.eu/wifictld/analyzer/database"
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)
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type Controller struct {
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SendTo func(addr *net.UDPAddr, msg *data.SocketMSG)
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Send func(msg *data.SocketMSG)
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db *database.DB
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ticker *time.Ticker
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central bool
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}
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func NewController(db *database.DB, central bool) *Controller {
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ctl := &Controller{
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ticker: time.NewTicker(60 * time.Second),
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db: db,
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central: central,
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}
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go ctl.Repeated()
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return ctl
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}
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func (c *Controller) Close() {
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c.ticker.Stop()
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}
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func (c *Controller) Repeated() {
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for range c.ticker.C {
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log.Infof("lerned: %d APs, %d Clients", len(c.db.APs), len(c.db.Clients))
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}
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}
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@ -9,6 +9,8 @@ import (
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log "github.com/sirupsen/logrus"
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)
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var DEBUG = false
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// SocketMSGType kind of packages
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type SocketMSGType uint32
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@ -20,7 +22,10 @@ const (
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)
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func (a SocketMSGType) Is(b SocketMSGType) bool {
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if DEBUG {
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log.Debugf("SocketType: %x & %x = %x -> %b", a, b, (a & b), (a&b) > 0)
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}
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return (a & b) > 0
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}
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@ -84,7 +89,9 @@ func (msg *SocketMSG) Marshal() ([]byte, error) {
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}
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func (msg *SocketMSG) Unmarshal(obj []byte) error {
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if DEBUG {
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log.Debugf("hex unmarshal: %x", obj)
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}
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pos := 0
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@ -0,0 +1,4 @@
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package database
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type AP struct {
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}
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@ -0,0 +1,60 @@
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package database
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import (
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"net"
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"time"
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// log "github.com/sirupsen/logrus"
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"dev.sum7.eu/wifictld/analyzer/data"
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)
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type Client struct {
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Addr net.HardwareAddr
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Time time.Time
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TryProbe uint16
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TryAuth uint16
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Connected bool
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Authed bool
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FreqHighest uint16
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SignalLowFreq int16
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SignalHighFreq int16
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}
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func (db *DB) LearnClient(apIP net.IP, clientWifictl *data.WifiClient) bool {
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ret := false
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apAddr := apIP.String()
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ap, ok := db.APs[apAddr]
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if !ok {
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ap = &AP{}
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db.APs[apAddr] = ap
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}
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clientAddr := clientWifictl.Addr.String()
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client, ok := db.Clients[clientAddr]
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if !ok {
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client = &Client{
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Addr: clientWifictl.Addr,
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}
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db.Clients[clientAddr] = client
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}
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client.Time = time.Now()
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if client.FreqHighest < clientWifictl.FreqHighest {
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ret = (client.FreqHighest != 0)
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client.FreqHighest = clientWifictl.FreqHighest
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}
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return ret
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}
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func (db *DB) GetClient(addr net.HardwareAddr) *data.WifiClient {
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client, ok := db.Clients[addr.String()]
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wClient := &data.WifiClient{
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Addr: addr,
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Time: time.Now(),
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}
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if ok {
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wClient.TryProbe = client.TryProbe
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}
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return wClient
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}
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@ -0,0 +1,13 @@
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package database
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type DB struct {
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Clients map[string]*Client `json:"client"`
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APs map[string]*AP `json:"ap"`
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}
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func NewDB() *DB {
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return &DB{
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Clients: make(map[string]*Client),
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APs: make(map[string]*AP),
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}
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}
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