190 lines
4.0 KiB
C++
190 lines
4.0 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2005 INRIA
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include <iostream>
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#include <iomanip>
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#include "ns3/assert.h"
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#include "mac-address.h"
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#define ASCII_a (0x41)
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#define ASCII_z (0x5a)
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#define ASCII_A (0x61)
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#define ASCII_Z (0x7a)
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#define ASCII_COLON (0x3a)
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#define ASCII_ZERO (0x30)
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namespace ns3 {
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static char
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AsciiToLowCase (char c)
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{
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if (c >= ASCII_a && c <= ASCII_z) {
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return c;
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} else if (c >= ASCII_A && c <= ASCII_Z) {
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return c + (ASCII_a - ASCII_A);
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} else {
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return c;
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}
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}
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MacAddress::MacAddress () : m_len(0)
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{
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for (int i=0; i < MacAddress::MAX_LEN; i++)
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{
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m_address[i] = 0;
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}
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}
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MacAddress::MacAddress (uint8_t const *address, uint8_t len)
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{
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NS_ASSERT (len <= MacAddress::MAX_LEN);
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for (int i=0; i < len; i++)
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{
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m_address[i] = address[i];
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}
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for (int i=len; i < MacAddress::MAX_LEN; i++)
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{
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m_address[i] = 0;
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}
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m_len = len;
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}
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MacAddress::MacAddress (char const *str)
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{
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int i = 0;
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while (*str != 0 && i < MacAddress::MAX_LEN) {
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uint8_t byte = 0;
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while (*str != ASCII_COLON && *str != 0) {
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byte <<= 4;
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char low = AsciiToLowCase (*str);
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if (low >= ASCII_a) {
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byte |= low - ASCII_a + 10;
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} else {
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byte |= low - ASCII_ZERO;
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}
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str++;
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}
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m_address[i] = byte;
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i++;
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if (*str == 0) {
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break;
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}
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str++;
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}
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m_len = i;
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}
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MacAddress::~MacAddress ()
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{}
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bool
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MacAddress::IsEqual (MacAddress other) const
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{
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if (memcmp(other.m_address, m_address, m_len))
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{
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return false;
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}
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else
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{
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return true;
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}
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}
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void
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MacAddress::Print (std::ostream &os) const
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{
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int i;
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if (m_len == 0)
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{
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os << "NULL-ADDRESS";
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return;
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}
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os.setf (std::ios::hex, std::ios::basefield);
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std::cout.fill('0');
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for (i=0; i< (m_len-1); i++)
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{
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os << std::setw(2) << (uint32_t)m_address[i] << ":";
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}
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// Final byte not suffixed by ":"
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os << std::setw(2) << (uint32_t)m_address[i];
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os.setf (std::ios::dec, std::ios::basefield);
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std::cout.fill(' ');
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}
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uint8_t
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MacAddress::GetLength () const
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{
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return m_len;
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}
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void
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MacAddress::Peek (uint8_t ad[MacAddress::MAX_LEN]) const
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{
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memcpy (ad, m_address, MacAddress::MAX_LEN);
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}
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void
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MacAddress::Set (uint8_t const ad[MacAddress::MAX_LEN], uint8_t len)
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{
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memcpy (m_address, ad, MacAddress::MAX_LEN);
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m_len = len;
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}
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bool operator == (MacAddress const&a, MacAddress const&b)
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{
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return a.IsEqual (b);
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}
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bool operator != (MacAddress const&a, MacAddress const&b)
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{
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return !a.IsEqual (b);
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}
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bool operator < (MacAddress const&a, MacAddress const&b)
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{
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uint8_t a_p[MacAddress::MAX_LEN];
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uint8_t b_p[MacAddress::MAX_LEN];
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a.Peek (a_p);
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b.Peek (b_p);
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NS_ASSERT (a.GetLength() == b.GetLength());
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for (uint8_t i = 0; i < a.GetLength(); i++)
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{
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if (a_p[i] < b_p[i])
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{
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return true;
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}
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else if (a_p[i] > b_p[i])
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{
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return false;
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}
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}
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return false;
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}
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std::ostream& operator<< (std::ostream& os, MacAddress const& address)
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{
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address.Print (os);
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return os;
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}
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}; // namespace ns3
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