Class PacketFu::UDPHeader
In: lib/packetfu/udp.rb
Parent: Struct.new(:udp_src, :udp_dst, :udp_len, :udp_sum, :body)

UDPHeader is a complete UDP struct, used in UDPPacket. Many Internet-critical protocols rely on UDP, such as DNS and World of Warcraft.

For more on UDP packets, see www.networksorcery.com/enp/protocol/udp.htm

Header Definition

 Int16   :udp_src
 Int16   :udp_dst
 Int16   :udp_len  Default: calculated
 Int16   :udp_sum  Default: 0. Often calculated.
 String  :body

Methods

new   read   to_s   udp_calc_len   udp_dport   udp_dport=   udp_dst   udp_dst=   udp_len   udp_len=   udp_recalc   udp_sport   udp_sport=   udp_src   udp_src=   udp_sum   udp_sum=  

Included Modules

StructFu

Public Class methods

Public Instance methods

read(str)

Reads a string to populate the object.

to_s()

Returns the object in string form.

udp_calc_len()

Returns the true length of the UDP packet.

udp_dport()

Equivalent to udp_dst

udp_dst()

Getter for the UDP destination port.

udp_dst=(i)

Setter for the UDP destination port.

udp_len()

Getter for the length field.

udp_len=(i)

Setter for the length field. Usually should be recalc()’ed instead.

udp_recalc(args=:all)

Recalculates calculated fields for UDP.

udp_sport()

Equivalent to udp_src.to_i

udp_src()

Getter for the UDP source port.

udp_src=(i)

Setter for the UDP source port.

udp_sum()

Getter for the checksum.

udp_sum=(i)

Setter for the checksum. Usually should be recalc()’ed instad.

[Validate]