Patrice Auffret > Net-Packet-3.27 > Net::Packet::DescL4

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NAME ^

Net::Packet::DescL4 - object for a transport layer (layer 4) descriptor

SYNOPSIS ^

   require Net::Packet::DescL4;

   # Get NP_DESC_* constants
   use Net::Packet::Consts qw(:desc :layer);

   # Usually, you use it to send TCP and UDP frames over IPv4
   my $d4 = Net::Packet::DescL4->new(
      target   => '192.168.0.1',
      protocol => NP_DESC_IPPROTO_TCP,
      family   => NP_LAYER_IPv4,
   );

   $d4->send($rawStringToNetwork);

DESCRIPTION ^

See also Net::Packet::Desc for other attributes and methods.

ATTRIBUTES ^

target

IPv4 address of the target host. You must set it to be able to send frames.

protocol

Transport protocol to use, see NP_DESC_IPPROTO_* constants in Net::Packet::Desc. You must set it to be able to send frames.

family

The family address of target attribute. It is either NP_LAYER_IPv4 or NP_LAYER_IPv6.

METHODS ^

new

Create the object, using default $Env object values for dev, ip, ip6 and mac (see Net::Packet::Env). When the object is created, the $Env global object has its desc attributes set to it. You can avoid this behaviour by setting noDescAutoSet in $Env object (see Net::Packet::Env).

Default values for attributes:

dev: $Env->dev

ip: $Env->ip

ip6: $Env->ip6

mac: $Env->mac

protocol: NP_DESC_IPPROTO_TCP

family: NP_LAYER_IPv4

isFamilyIpv4
isFamilyIpv6
isFamilyIp - either one of two previous

Helper method to know about the layer 3 type.

isProtocolTcp
isProtocolUdp
isProtocolIcmpv4

Returns if the protocol attribute is of specified type.

AUTHOR ^

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE ^

Copyright (c) 2004-2009, Patrice <GomoR> Auffret

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

RELATED MODULES ^

NetPacket, Net::RawIP, Net::RawSock

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