// UDP tapset
// Copyright (C) 2006 Intel Corporation.
//
// 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.

%{
#include <linux/version.h>
#include <net/sock.h>
#include <net/udp.h>
#include <net/ip.h>
%}

// probe udp.sendmsg
//
//   Fires whenever sending a udp message  
//
// Context:
//   The process which sends a udp message 
//
// Arguments:
//  name         - name of this probe
//  sock         - network socket 
//  size         - number of bytes to send  
probe udp.sendmsg = kernel.function("udp_sendmsg") {
	name = "udp.sendmsg"
	sock    = $sk
	size    = $len
}

// probe udp.sendmsg.return
//
// Fires whenever sending message is done 
//
// Context:
// The process which sends a udp message
//
// Arguments:
//  name         - name of this probe
//  size         - number of bytes sent 
//
probe udp.sendmsg.return = kernel.function("udp_sendmsg").return {
	name = "udp.sendmsg"
	size = $return 
}

// probe udp.recvmsg
//
//  Fires whenever a message is received 
//
// Context:
//  The process which receives a udp message
//
// Arguments:
//  name         - name of this probe
//  sock         - network socket
//  size         - number of bytes to be received  
//
probe udp.recvmsg = kernel.function("udp_recvmsg") {
	name = "udp.recvmsg"
	sock    = $sk
	size    = $len
}

// probe udp.recvmsg.return
//
// Fires whenever message receiving is done 
//
// Context:
//  The process which receives a udp message
//
// Arguments:
//  name         - name of this probe
//  size         - number of bytes received
//
probe udp.recvmsg.return = kernel.function("udp_recvmsg").return {
	name = "udp.recvmsg"
	size = $return 
}

// probe udp.disconnect
//
//  Fires whenever udp is disconnected 
//
// Context:
//  The process which disconnects udp 
//
// Arguments:
//  name         - name of this probe
//  sock         - network socket 
//  flags        - flags (e.g. FIN, etc)  
//
probe udp.disconnect = kernel.function("udp_disconnect") {
	name = "udp.disconnect"
	sock  = $sk
	flags = $flags
}

// probe udp.disconnect.return
//
//  Fires when returning from udp.disconnect 
//
// Context:
//  The process which disconnects udp 
//
// Arguments:
//  name         - name of this probe
//  ret          - error code (0: no error) 
//
probe udp.disconnect.return = kernel.function("udp_disconnect").return {
	name = "udp.disconnect"
	ret = $return 
}