34 lines
1.3 KiB
Python
34 lines
1.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# IP6TOOLS.PY -- IPv6 manipulation routines
|
|
#
|
|
# Copyright © 2011 Nicolas Dandrimont <olasd@crans.org>
|
|
#
|
|
# Authors: Nicolas Dandrimont <olasd@crans.org>
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# 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, see <http://www.gnu.org/licenses/>.
|
|
|
|
import netaddr
|
|
|
|
def mac_to_ipv6(ipv6_prefix, mac_address):
|
|
"""Convert a MAC address (EUI48) to an IPv6 (prefix::EUI64)."""
|
|
if mac_address == '<automatique>':
|
|
return ''
|
|
|
|
if type(mac_address) in [str, unicode]:
|
|
mac_address = netaddr.EUI(mac_address)
|
|
addr = int(mac_address.bits(netaddr.mac_bare), 2)
|
|
ip6addr = (((addr >> 24) ^ (1 << 17)) << 40) | (0xFFFE << 24) | (addr & 0xFFFFFF)
|
|
n = netaddr.IPNetwork(ipv6_prefix)
|
|
return netaddr.IPAddress(n.first + ip6addr)
|