#!/bin/sh -e
-#
-# Copyright (C) 2006 Marco d'Itri <md@Linux.IT>
-# Copyright (C) 2007 Kay Sievers <kay.sievers@vrfy.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 version 2 of the License.
-#
+
# This script is run to create persistent network device naming rules
# based on properties of the device.
# If the interface needs to be renamed, INTERFACE_NEW=<name> will be printed
# variables used to communicate:
# MATCHADDR MAC address used for the match
# MATCHID bus_id used for the match
+# MATCHDEVID dev_id used for the match
# MATCHDRV driver name used for the match
# MATCHIFTYPE interface type match
# COMMENT comment to add to the generated rule
# INTERFACE_NAME requested name supplied by external tool
# INTERFACE_NEW new interface name returned by rule writer
+# Copyright (C) 2006 Marco d'Itri <md@Linux.IT>
+# Copyright (C) 2007 Kay Sievers <kay.sievers@vrfy.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 2 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/>.
+
+# debug, if UDEV_LOG=<debug>
+if [ -n "$UDEV_LOG" ]; then
+ if [ "$UDEV_LOG" -ge 7 ]; then
+ set -x
+ fi
+fi
+
RULES_FILE='/etc/udev/rules.d/70-persistent-net.rules'
. /lib/udev/rule_generator.functions
if [ "$PRINT_HEADER" ]; then
PRINT_HEADER=
echo "# This file was automatically generated by the $0"
- echo "# program run by the persistent-net-generator.rules rules file."
+ echo "# program, run by the persistent-net-generator.rules rules file."
echo "#"
- echo "# You can modify it, as long as you keep each rule on a single line."
+ echo "# You can modify it, as long as you keep each rule on a single"
+ echo "# line, and change only the value of the NAME= key."
fi
echo ""
match="$match, DRIVERS==\"$MATCHDRV\""
fi
+if [ "$MATCHDEVID" ]; then
+ match="$match, ATTR{dev_id}==\"$MATCHDEVID\""
+fi
+
if [ "$MATCHID" ]; then
match="$match, KERNELS==\"$MATCHID\""
fi
exit 1
fi
+basename=${INTERFACE%%[0-9]*}
+match="$match, KERNEL==\"$basename*\""
+
if [ "$INTERFACE_NAME" ]; then
# external tools may request a custom name
COMMENT="$COMMENT (custom name provided by external tool)"
fi
else
# if a rule using the current name already exists, find a new name
- basename=${INTERFACE%%[0-9]*}
- match="$match, KERNEL==\"$basename*\""
if interface_name_taken; then
INTERFACE="$basename$(find_next_available "$basename[0-9]*")"
+ # prevent INTERFACE from being "eth" instead of "eth0"
+ [ "$INTERFACE" = "${INTERFACE%%[ \[\]0-9]*}" ] && INTERFACE=${INTERFACE}0
echo "INTERFACE_NEW=$INTERFACE"
fi
fi