Class: DIY::Live

Inherits:
Object
  • Object
show all
Defined in:
lib/diy/live.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(device_name, args = {}) ⇒ Live

Returns a new instance of Live.



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# File 'lib/diy/live.rb', line 7

def initialize(device_name, args = {})
  DIY::Logger.info( "Initialize Live: #{device_name}" )
  
  default = { :dev=>device_name, :handler => FFI::PCap::CopyHandler, :promisc => true, :timeout=>1 }
  default = merge_arguments(default, args)
  @live = FFI::PCap::Live.new(default)
  DIY::Logger.info( "Listen on:  #{net} " )
  @running = false
  @live.non_blocking= true
end

Instance Attribute Details

#live ⇒ Object (readonly)

Returns the value of attribute live.



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# File 'lib/diy/live.rb', line 17

def live
  @live
end

Instance Method Details

#break ⇒ Object 



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# File 'lib/diy/live.rb', line 42

def break
  DIY::Logger.debug "stopping loop recv..."
  @running = false
end

#inject(packet_str) ⇒ Object Also known as: send_packet

发包



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# File 'lib/diy/live.rb', line 20

def inject(packet_str)
  @live.send_packet(packet_str)
end

#loop(&block) ⇒ Object 



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# File 'lib/diy/live.rb', line 25

def loop(&block)
  @running = true
  while @running do
    @live.dispatch do |this, pkt|
      next unless pkt
      block.call(this, pkt)
    end
    block.call(nil, nil) # at least every 0.01 min do it. 
    sleep 0.01
  end
  DIY::Logger.debug "stopped loop recv..."
end

#merge_arguments(default, new) ⇒ Object 



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# File 'lib/diy/live.rb', line 51

def merge_arguments(default, new)
  default.merge(new)
end

#net ⇒ Object 



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# File 'lib/diy/live.rb', line 47

def net
  @live.network + " / " + @live.netmask
end

#set_filter(reg) ⇒ Object 



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# File 'lib/diy/live.rb', line 38

def set_filter(reg)
  @live.set_filter(reg)
end