Net::Frame::Layer - base class for all layer objects

raw Stores the raw layer (as captured from the network, or packed to send to network).

       payload
           Stores what is not part of the layer, that is the encapsulated part to be decoded by upper layers.

       nextLayer
           User definable next layer. It may be used to define custom protocols.

       Patrice <GomoR> Auffret

       Load them: use Net::Frame::Layer qw(:consts);

       NF_LAYER_NONENF_LAYER_UNKNOWNNF_LAYER_NOT_AVAILABLE

       Copyright (c) 2006-2019, Patrice <GomoR> Auffret

       You may distribute this module under the terms of the Artistic license.  See LICENSE.Artistic file in the
       source distribution archive.

perl v5.36.0                                       2022-12-04                             Net::Frame::Layer(3pm)

       This is the base class for all other layer modules. It provides those layers with inheritable attributes,
       methods, constants and useful subroutines.

newnew (hash)
           Object constructor.

       layer
           Returns the string describing the layer (example: 'IPv4' for a Net::Frame::Layer::IPv4 object).

       computeLengthscomputeChecksums
           Generally,  when  a  layer  is built, some attributes are not yet known until all layers that will be
           assembled are known. Those methods computes various lengths  and  checksums  attributes  found  in  a
           specific  layer.  Return 1 on success, undef otherwise. The usage depends from layer to layer, so see
           related documentation.

           Also note that in most cases, you will need to call computeLength  before  computeChecksums,  because
           checksums may depend upon lengths.

       pack
           Packs  all attributes into a raw format, in order to inject to network. Returns the raw packed string
           on success, undef otherwise. Result is stored into raw attribute.

       unpack
           Unpacks raw data from network and stores attributes into the object. Returns $self on success,  undef
           otherwise.

       encapsulate
           Returns  the  next  layer  type  (parsed  from payload). This is the same string as returned by layer
           method.

       getLength
           Returns the layer length in bytes.

       getPayloadLength
           Returns the length of layer's payload in bytes.

       print
           Just returns a string in a human readable format describing attributes found in the layer.

       dump
           Just returns a string in hexadecimal format which is how the layer appears on the network.

       Net::Frame::Layer - base class for all layer objects

       Load them: use Net::Frame::Layer qw(:subs);

       getHostIpv4Addr (hostname)
           Resolves IPv4 address of specified hostname.

       getHostIpv4Addrs (hostname)
           Same as above, but returns an array of IPv4 addresses.

       getHostIpv6Addr (hostname)
           Resolves IPv6 address of specified hostname.

       inet6Aton (IPv6 address)
           Takes IPv6 address and returns the network form.

       inet6Ntoa (IPv6 network form)
           Takes IPv6 address in network format, and returns the IPv6 human form.

       inetAton (IPv4 address)
       inetNtoa (IPv4 network form)
           Same as for IPv6, but for IPv4 addresses.

       convertMac (MAC network form)
           Takes a MAC address from network form, and returns the human form.

       getRandom16bitsIntgetRandom32bitsInt
           Returns respectively a random 16 bits integer, and a random 32 bits integer.

       getRandomHighPort
           Returns a random high port (> 1024).

       inetChecksum (pseudo header format)
           Will take a frame in pseudo header format, and compute the INET checksum.