// inet_sock information tapset 
// Copyright (C) 2006 IBM Corp.
// 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/tcp.h>
#include <net/ip.h>

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
#define LPORT   (inet->inet.num)
#define DADDR   (&inet->inet.daddr)
#else
#define LPORT   (inet->num)
#define DADDR   (&inet->daddr)
#endif
%}

// Get local port number
function inet_get_local_port:long(sock:long)
%{
	struct inet_sock *inet = (struct inet_sock *) (long) THIS->sock;
	THIS->__retvalue = kread(&(LPORT));
	CATCH_DEREF_FAULT();
%}

// Get IP source address string
function inet_get_ip_source:string(sock:long)
%{
	struct inet_sock *inet = (struct inet_sock *) (long) THIS->sock;
	union { __u32 d; unsigned char addr[4]; } u;
	u.d = kread(DADDR);
	sprintf(THIS->__retvalue, "%d.%d.%d.%d",
			u.addr[0], u.addr[1], u.addr[2], u.addr[3]);
	CATCH_DEREF_FAULT();
%}