Class: BetterCap::Discovery::Agents::Icmp

Inherits:
Object
  • Object
show all
Defined in:
lib/bettercap/discovery/agents/icmp.rb

Overview

Class responsible to do a ping-sweep on the network.

Instance Method Summary collapse

Constructor Details

#initialize(ctx, address = nil) ⇒ Icmp

Create a thread which will perform a ping-sweep on the network in order to populate the ARP cache with active targets.



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# File 'lib/bettercap/discovery/agents/icmp.rb', line 22

def initialize( ctx, address = nil )
  Firewalls::Base.get.enable_icmp_bcast(true)

  # TODO: Use the real broadcast address for this network.
  3.times do
    pkt = PacketFu::ICMPPacket.new

    pkt.eth_saddr = ctx.iface.mac
    pkt.eth_daddr = 'ff:ff:ff:ff:ff:ff'
    pkt.ip_saddr  = ctx.iface.ip
    pkt.ip_daddr  = '255.255.255.255'
    pkt.icmp_type = 8
    pkt.icmp_code = 0
    pkt.payload   = "ABCD"
    pkt.recalc

    ctx.packets.push(pkt)
  end
end