1 files changed, 88 insertions, 0 deletions
diff --git a/net.Linux/macchanger.sh b/net.Linux/macchanger.sh
new file mode 100644
index 00000000..9d71513f
--- /dev/null
+++ b/net.Linux/macchanger.sh
@@ -0,0 +1,88 @@
+# 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 :