Class: Scriptroute::IPv4option

Inherits:
Object
  • Object
show all
Defined in:
lib/scriptroute/packets.rb,
lib/scriptroute/packets.rb

Overview

base class for IPv4 options.

Constant Summary collapse

IPOPT_EOOL = 
0
IPOPT_EOL =

deprecated, backward compatibility.

0
IPOPT_NOOP = 
1
IPOPT_TS = 
68
IPOPT_TIMESTAMP = 
IPOPT_TS
IPOPT_RR = 
7
IPOPT_TS_TSONLY = 
0
IPOPT_TS_TSANDADDR = 
1
IPOPT_TS_PRESPEC = 
3
@@creators = 
Hash.new

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*rest) ⇒ IPv4option

Returns a new instance of IPv4option.



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# File 'lib/scriptroute/packets.rb', line 420

def initialize(*rest) 
  if(rest.length == 3) then
    @ipt_code = rest[0]
    @ipt_len = rest[1]
    @ipt_ptr = rest[2]
  else
    @ipt_code, @ipt_len, @ipt_ptr = rest[0].unpack("CCC")
  end
end

Instance Attribute Details

#ipt_code ⇒ Fixnum (readonly)

Returns:

  • (Fixnum) 


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# File 'lib/scriptroute/packets.rb', line 409

def ipt_code
  @ipt_code
end

#ipt_len ⇒ Fixnum (readonly)

Returns:

  • (Fixnum) 


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# File 'lib/scriptroute/packets.rb', line 409

def ipt_len
  @ipt_len
end

#ipt_ptr ⇒ Fixnum

Returns:

  • (Fixnum) 


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# File 'lib/scriptroute/packets.rb', line 409

def ipt_ptr
  @ipt_ptr
end

Class Method Details

.creator(str) ⇒ Object 



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# File 'lib/scriptroute/packets.rb', line 412

def IPv4option.creator(str) 
  ipt_code, ipt_len, ipt_ptr = str.unpack("CCC")
  if(@@creators[ipt_code]) then
    pkt = (@@creators[ipt_code]).call(str)
  else
    raise "unknown ip option code %d" % ipt_code
  end
end

Instance Method Details

#to_s ⇒ String

Returns:

  • (String) 


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# File 'lib/scriptroute/packets.rb', line 435

def to_s
  ": opt: code %d len %d ptr %d" % [ @ipt_code, @ipt_len, @ipt_ptr ]
end