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// networking tapset
// Copyright (C) 2005, 2006 IBM Corp.
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
///<chapter id="networking.stp">
/// <title>Networking Tapset</title>
/// <para>
/// This family of probe points is used to probe the activities of
/// network device.
/// </para>
%{
#include <linux/netdevice.h>
%}
///<formalpara id="netdev.receive">
/// <title>netdev.receive</title>
/// <indexterm><primary>netdev.receive</primary></indexterm>
/// <para>Fires when data arrives on network device.</para>
///</formalpara>
///<para>
/// <variablelist><title>Arguments:</title>
/// <varlistentry><term>dev_name</term>
/// <listitem><para>
/// The name of the device. e.g: eth0, ath1
/// </para></listitem>
/// </varlistentry>
///
/// <varlistentry><term>length</term>
/// <listitem><para>
/// The length of the receiving buffer
/// </para></listitem>
/// </varlistentry>
///
/// <varlistentry><term>protocol</term>
/// <listitem><para>The possible values of protocol could be:
/// <table frame='all'><title>Protocol Values</title>
/// <tgroup cols='2' align='left' colsep='1' rowsep='1'>
/// <colspec colname='Value'/>
/// <colspec colname='Protocol'/>
/// <thead>
/// <row><entry>Value</entry><entry>Protocol</entry></row>
/// </thead>
/// <tbody>
/// <row><entry>0800</entry><entry>IP</entry></row>
/// <row><entry>8100</entry><entry>802.1Q VLAN</entry></row>
/// <row><entry>0001</entry><entry>802.3</entry></row>
/// <row><entry>0002</entry><entry>AX.25</entry></row>
/// <row><entry>0004</entry><entry>802.2</entry></row>
/// <row><entry>8035</entry><entry>RARP</entry></row>
/// <row><entry>0005</entry><entry>SNAP</entry></row>
/// <row><entry>0805</entry><entry>X.25</entry></row>
/// <row><entry>0806</entry><entry>ARP</entry></row>
/// <row><entry>8137</entry><entry>IPX</entry></row>
/// <row><entry>0009</entry><entry>Localtalk</entry></row>
/// <row><entry>86DD</entry><entry>IPv6</entry></row>
/// </tbody>
/// </tgroup>
/// </table>
/// </para></listitem>
/// </varlistentry>
///
/// <varlistentry><term>truesize</term>
/// <listitem><para>
/// The size of the received data.
/// </para></listitem>
/// </varlistentry>
///
/// </variablelist>
///</para>
/* Main device receive routine, be called when packet arrives on network device */
probe netdev.receive
= kernel.function("netif_receive_skb")
{
dev_name = kernel_string($skb->dev->name)
length = $skb->len
protocol = $skb->protocol
truesize = $skb->truesize
}
///<formalpara id="netdev.transmit">
/// <title>netdev.transmit</title>
/// <indexterm><primary>netdev.transmit</primary></indexterm>
/// <para> Fires when the network device wants to transmit a buffer.</para>
///</formalpara>
///<para>
/// <variablelist><title>Arguments:</title>
/// <varlistentry><term>dev_name</term>
/// <listitem><para>
/// The name of the device. e.g: eth0, ath1
/// </para></listitem>
/// </varlistentry>
///
/// <varlistentry><term>length</term>
/// <listitem><para>
/// The length of the transmit buffer
/// </para></listitem>
/// </varlistentry>
///
/// <varlistentry><term>protocol</term>
/// <listitem><para>
/// The protocol of this packet.
/// </para></listitem>
/// </varlistentry>
///
/// <varlistentry><term>truesize</term>
/// <listitem><para>
/// The size of the the data to be transmitted.
/// </para></listitem>
/// </varlistentry>
///
/// </variablelist>
///</para>
/* Queue a buffer for transmission to a network device */
probe netdev.transmit
= kernel.function("dev_queue_xmit")
{
dev_name = kernel_string($skb->dev->name)
length = $skb->len
protocol = $skb->protocol
truesize = $skb->truesize
}
///</chapter>
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