1 /* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

     2 /*

     3  * Copyright (c) 2009 MIRKO BANCHI

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License version 2 as 

     7  * published by the Free Software Foundation;

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    17  *

    18  * Author: Mirko Banchi <mk.banchi@gmail.com>

    19  */

    20 #include "qos-utils.h"

    21 #include "qos-tag.h"

    22 

    23 namespace ns3 {

    24 

    25 AccessClass

    26 QosUtilsMapTidToAc (uint8_t tid)

    27 {

    28   switch (tid) {

    29   case 0 :

    30     return AC_BE;

    31     break;

    32   case 1 :

    33     return AC_BK;

    34     break;

    35   case 2 :

    36     return AC_BK;

    37     break;

    38   case 3 :

    39     return AC_BE;

    40     break;

    41   case 4 :

    42     return AC_VI;

    43     break;

    44   case 5 :

    45     return AC_VI;

    46     break;

    47   case 6 :

    48     return AC_VO;

    49     break;

    50   case 7 : 

    51     return AC_VO;

    52     break;

    53   }

    54   return AC_UNDEF;

    55 }

    56 

    57 uint8_t

    58 QosUtilsGetTidForPacket (Ptr<const Packet> packet)

    59 {

    60   QosTag qos;

    61   uint8_t tid = 8;

    62   if (packet->FindFirstMatchingTag (qos))

    63     {

    64       if (qos.Get () < 8)

    65         {

    66           tid = qos.Get ();

    67         }

    68     }

    69   return tid;

    70 }

    71 

    72 } //namespace ns3