addba-extension.cc

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/*
 * Copyright (c) 2023 Universita' degli Studi di Napoli Federico II
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Stefano Avallone <stavallo@unina.it>
 */
 
#include "addba-extension.h"
 
namespace ns3
{
 
void
AddbaExtension::Print(std::ostream& os) const
{
    os << "extBufferSize=" << +m_extParamSet.extBufferSize;
}
 
WifiInformationElementId
AddbaExtension::ElementId() const
{
    return IE_ADDBA_EXTENSION;
}
 
uint16_t
AddbaExtension::GetInformationFieldSize() const
{
    return 1U; // ADDBA Extended Parameter Set field
}
 
void
AddbaExtension::SerializeInformationField(Buffer::Iterator start) const
{
    uint8_t extParamSet = m_extParamSet.noFragment | (m_extParamSet.heFragmentOp << 1) |
                          (m_extParamSet.extBufferSize << 5);
    start.WriteU8(extParamSet);
}
 
uint16_t
AddbaExtension::DeserializeInformationField(Buffer::Iterator start, uint16_t length)
{
    auto extParamSet = start.ReadU8();
    m_extParamSet.noFragment = extParamSet & 0x01;
    m_extParamSet.heFragmentOp = (extParamSet >> 1) & 0x03;
    m_extParamSet.extBufferSize = (extParamSet >> 5) & 0x07;
    return 1;
}
 
} // namespace ns3