openrc/net.Linux/macchanger.sh
Roy Marples 5af58b4514 Rewrite the core parts in C. We now provide librc so other programs can
query runlevels, services and state without using bash. We also provide
libeinfo so other programs can easily use our informational functions.

As such, we have dropped the requirement of using bash as the init script
shell. We now use /bin/sh and have strived to make the scripts as portable
as possible. Shells that work are bash and dash. busybox works provided
you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
should disable find too.
zsh and ksh do not work at this time.

Networking support is currently being re-vamped also as it was heavily bash
array based. As such, a new config format is available like so
config_eth0="1.2.3.4/24 5.6.7.8/16"
or like so
config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"

We will still support the old bash array format provided that /bin/sh IS
a link it bash.

ChangeLog for baselayout-1 can be found in our SVN repo.
2007-04-05 11:18:42 +00:00

89 lines
2.1 KiB
Bash

# Copyright 2004-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
macchanger_depend() {
before macnet
}
_config_vars="$_config_vars mac"
macchanger_pre_start() {
# We don't change MAC addresses from background
${IN_BACKGROUND} && return 0
local mac= opts=
eval mac=\$mac_${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 "${mac}" | sed -e 'y/ABCDEF/abcdef')
case "${mac}" in
# specific mac-addr, i wish there were a shorter way to specify this
[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f])
# 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 ${mac}"
eoutdent
return 0
fi
;;
# increment MAC address, default macchanger behavior
increment) opts="${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} ${mac}" ;;
esac
if [ ! -x /sbin/macchanger ] ; then
eerror "For changing MAC addresses, emerge net-analyzer/macchanger"
return 1
fi
mac=$(LC_ALL=C macchanger ${opts} "${IFACE}" \
| sed -n -e 's/^Faked MAC:.*\<\(..:..:..:..:..:..\)\>.*/\1/p' )
_up
# Sometimes the interface needs to be up ....
if [ -z "${mac}" ] ; then
mac=$(LC_ALL=C macchanger ${opts} "${IFACE}" \
| sed -n -e 's/^Faked MAC:.*\<\(..:..:..:..:..:..\)\>.*/\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 :