mirror of
https://github.com/bettercap/bettercap
synced 2025-07-06 04:52:10 -07:00
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package modules
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/bettercap/bettercap/log"
|
|
"github.com/bettercap/bettercap/network"
|
|
"github.com/bettercap/bettercap/packets"
|
|
"github.com/bettercap/bettercap/session"
|
|
)
|
|
|
|
func findMAC(s *session.Session, ip net.IP, probe bool) (net.HardwareAddr, error) {
|
|
var mac string
|
|
var hw net.HardwareAddr
|
|
var err error
|
|
|
|
// do we have this ip mac address?
|
|
mac, err = network.ArpLookup(s.Interface.Name(), ip.String(), false)
|
|
if err != nil && probe {
|
|
from := s.Interface.IP
|
|
from_hw := s.Interface.HW
|
|
|
|
if err, probe := packets.NewUDPProbe(from, from_hw, ip, 139); err != nil {
|
|
log.Error("Error while creating UDP probe packet for %s: %s", ip.String(), err)
|
|
} else {
|
|
s.Queue.Send(probe)
|
|
}
|
|
|
|
time.Sleep(500 * time.Millisecond)
|
|
|
|
mac, _ = network.ArpLookup(s.Interface.Name(), ip.String(), false)
|
|
}
|
|
|
|
if mac == "" {
|
|
return nil, fmt.Errorf("Could not find hardware address for %s.", ip.String())
|
|
}
|
|
|
|
mac = network.NormalizeMac(mac)
|
|
hw, err = net.ParseMAC(mac)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Error while parsing hardware address '%s' for %s: %s", mac, ip.String(), err)
|
|
}
|
|
|
|
return hw, nil
|
|
}
|