112 lines
3.2 KiB
Bash
112 lines
3.2 KiB
Bash
# Copyright 2007 Roy Marples
|
|
# All rights reserved
|
|
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
# SUCH DAMAGE.
|
|
|
|
macchanger_depend() {
|
|
before macnet
|
|
}
|
|
|
|
_config_vars="$_config_vars mac"
|
|
|
|
macchanger_pre_start() {
|
|
# We don't change MAC addresses from background
|
|
yesno ${IN_BACKGROUND} && return 0
|
|
|
|
local mac= opts=
|
|
|
|
eval mac=\$mac_${IFVAR}
|
|
[ -z "${mac}" ] && return 0
|
|
|
|
_exists true || return 1
|
|
|
|
ebegin "Changing MAC address of ${IFACE}"
|
|
|
|
# The interface needs to be up for macchanger to work most of the time
|
|
_down
|
|
|
|
mac=$(echo "${mac}" | tr '[:upper:]' '[:lower:]')
|
|
local hex="[0-9a-f][0-9a-f]"
|
|
case "${mac}" in
|
|
# specific mac-addr
|
|
${hex}:${hex}:${hex}:${hex}:${hex}:${hex})
|
|
# We don't need macchanger to change to a specific mac address
|
|
_set_mac_address "${mac}"
|
|
if eend "$?"; then
|
|
mac=$(_get_mac_address)
|
|
eindent
|
|
einfo "changed to ${mac}"
|
|
eoutdent
|
|
_up
|
|
return 0
|
|
fi
|
|
;;
|
|
|
|
# increment MAC address, default macchanger behavior
|
|
increment) opts="${opts}";;
|
|
|
|
# randomize just the ending bytes
|
|
random-ending) opts="${opts} -e";;
|
|
|
|
# keep the same kind of physical layer (eg fibre, copper)
|
|
random-samekind) opts="${opts} -a";;
|
|
|
|
# randomize to any known vendor of any physical layer type
|
|
random-anykind) opts="${opts} -A";;
|
|
|
|
# fully random bytes
|
|
random-full|random) opts="${opts} -r";;
|
|
|
|
# default case is just to pass on all the options
|
|
*) opts="${opts} ${mac}";;
|
|
esac
|
|
|
|
if [ ! -x /sbin/macchanger ]; then
|
|
eerror "For changing MAC addresses, emerge net-analyzer/macchanger"
|
|
return 1
|
|
fi
|
|
|
|
mac=$(/sbin/macchanger ${opts} "${IFACE}" \
|
|
| sed -n -e 's/^Faked MAC:.*\<\(..:..:..:..:..:..\)\>.*/\U\1/p' )
|
|
_up
|
|
|
|
# Sometimes the interface needs to be up ....
|
|
if [ -z "${mac}" ]; then
|
|
mac=$(/sbin/macchanger ${opts} "${IFACE}" \
|
|
| sed -n -e 's/^Faked MAC:.*\<\(..:..:..:..:..:..\)\>.*/\U\1/p' )
|
|
fi
|
|
|
|
if [ -z "${mac}" ]; then
|
|
eend 1 "Failed to set MAC address"
|
|
return 1
|
|
fi
|
|
|
|
eend 0
|
|
eindent
|
|
einfo "changed to" "${mac}"
|
|
eoutdent
|
|
|
|
return 0
|
|
}
|
|
|
|
# vim: set ts=4 :
|