Class: Scriptroute::ICMP

Inherits:
IPv4
  • Object
show all
Defined in:
lib/scriptroute/packets.rb,
lib/scriptroute/packets.rb

Constant Summary collapse

ICMP_ECHO = 
8
ICMP_ECHOREPLY = 
0
ICMP_UNREACH = 
3
ICMP_TIMXCEED = 
11
ICMP_TIMESTAMP = 
13
ICMP_TIMESTAMPREPLY = 
14
ICMP_MASKREQ =

/* address mask request */

17
ICMP_MASKREPLY =

/* address mask reply */

18
ICMP_PARAMETERPROB = 
12
ICMP_UNREACH_NET =

/* bad net */

0
ICMP_UNREACH_HOST =

/* bad host */

1
ICMP_UNREACH_PROTOCOL =

/* bad protocol */

2
ICMP_UNREACH_PORT =

/* bad port */

3
ICMP_UNREACH_NEEDFRAG =

/* IP_DF caused drop */

4
ICMP_UNREACH_SRCFAIL =

/* src route failed */

5
ICMP_UNREACH_NET_UNKNOWN =

/* unknown net */

6
ICMP_UNREACH_HOST_UNKNOWN =

/* unknown host */

7
ICMP_UNREACH_ISOLATED =

/* src host isolated */

8
ICMP_UNREACH_NET_PROHIB =

/* net denied */

9
ICMP_UNREACH_HOST_PROHIB =

/* host denied */

10
ICMP_UNREACH_TOSNET =

/* bad tos for net */

11
ICMP_UNREACH_TOSHOST =

/* bad tos for host */

12
ICMP_UNREACH_FILTER_PROHIB =

/* admin prohib */

13
ICMP_UNREACH_HOST_PRECEDENCE =

/* host prec vio. */

14
ICMP_UNREACH_PRECEDENCE_CUTOFF =

/* prec cutoff */

15
@@icmp_creators = 
Hash.new

Constants inherited from IPv4

Scriptroute::IPv4::IPPROTO_ICMP

Constants inherited from IP

Scriptroute::IP::IPPROTO_TCP, Scriptroute::IP::IPPROTO_UDP

Instance Attribute Summary collapse

Attributes inherited from IPv4

#ip_dst, #ip_hl, #ip_id, #ip_len, #ip_off, #ip_options, #ip_src, #ip_sum, #ip_tos, #ip_ttl, #ip_v

Instance Method Summary collapse

Methods inherited from IPv4

#add_option, #calculate_header_len, #calculate_packet_len, creator, #ipv4_unmarshal

Methods inherited from IP

creator, #to_bytes

Constructor Details

#initialize(type_or_str) ⇒ ICMP

Returns a new instance of ICMP.



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# File 'lib/scriptroute/packets.rb', line 679

def initialize(type_or_str)
  if(type_or_str.is_a?(Fixnum)) then
    @ip_p = IPPROTO_ICMP
    @icmp_type = type_or_str
    @icmp_code = 0
    super(IPPROTO_ICMP) 
  else
    @icmp_type, @icmp_code, @icmp_cksum = type_or_str.unpack("CCn")
  end
end

Instance Attribute Details

#icmp_cksum ⇒ Object (readonly)

Returns the value of attribute icmp_cksum.



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# File 'lib/scriptroute/packets.rb', line 666

def icmp_cksum
  @icmp_cksum
end

#icmp_code ⇒ Object (readonly)

Returns the value of attribute icmp_code.



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# File 'lib/scriptroute/packets.rb', line 666

def icmp_code
  @icmp_code
end

#icmp_type ⇒ Object (readonly)

Returns the value of attribute icmp_type.



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# File 'lib/scriptroute/packets.rb', line 666

def icmp_type
  @icmp_type
end

#ip_p ⇒ Object (readonly)

Returns the value of attribute ip_p.



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# File 'lib/scriptroute/packets.rb', line 667

def ip_p
  @ip_p
end

#ip_payload_len ⇒ Object (readonly)

Returns the value of attribute ip_payload_len.



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# File 'lib/scriptroute/packets.rb', line 667

def ip_payload_len
  @ip_payload_len
end

Instance Method Details

#to_s ⇒ String

Returns:

  • (String) 


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# File 'lib/scriptroute/packets.rb', line 698

def to_s
  super + ": ICMP: type %d code %d cksum %d" %[ @icmp_type, @icmp_code, @icmp_cksum ]
end