+++ /dev/null
-#!/bin/sh -e
-
-# 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
-# on stdout to allow udev to IMPORT it.
-
-# 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
-
-interface_name_taken() {
- local value="$(find_all_rules 'NAME=' $INTERFACE)"
- if [ "$value" ]; then
- return 0
- else
- return 1
- fi
-}
-
-find_next_available() {
- raw_find_next_available "$(find_all_rules 'NAME=' "$1")"
-}
-
-write_rule() {
- local match="$1"
- local name="$2"
- local comment="$3"
-
- {
- if [ "$PRINT_HEADER" ]; then
- PRINT_HEADER=
- echo "# This file was automatically generated by the $0"
- echo "# program, run by the persistent-net-generator.rules rules file."
- echo "#"
- echo "# You can modify it, as long as you keep each rule on a single"
- echo "# line, and change only the value of the NAME= key."
- fi
-
- echo ""
- [ "$comment" ] && echo "# $comment"
- echo "SUBSYSTEM==\"net\", ACTION==\"add\"$match, NAME=\"$name\""
- } >> $RULES_FILE
-}
-
-if [ -z "$INTERFACE" ]; then
- echo "missing \$INTERFACE" >&2
- exit 1
-fi
-
-# Prevent concurrent processes from modifying the file at the same time.
-lock_rules_file
-
-# Check if the rules file is writeable.
-choose_rules_file
-
-# the DRIVERS key is needed to not match bridges and VLAN sub-interfaces
-if [ "$MATCHADDR" ]; then
- match="$match, DRIVERS==\"?*\", ATTR{address}==\"$MATCHADDR\""
-fi
-
-if [ "$MATCHDRV" ]; then
- match="$match, DRIVERS==\"$MATCHDRV\""
-fi
-
-if [ "$MATCHDEVID" ]; then
- match="$match, ATTR{dev_id}==\"$MATCHDEVID\""
-fi
-
-if [ "$MATCHID" ]; then
- match="$match, KERNELS==\"$MATCHID\""
-fi
-
-if [ "$MATCHIFTYPE" ]; then
- match="$match, ATTR{type}==\"$MATCHIFTYPE\""
-fi
-
-if [ -z "$match" ]; then
- echo "missing valid match" >&2
- unlock_rules_file
- exit 1
-fi
-
-basename=${INTERFACE%%[0-9]*}
-match="$match, KERNEL==\"$basename*\""
-
-if [ "$INTERFACE_NAME" ]; then
- # external tools may request a custom name
- COMMENT="$COMMENT (custom name provided by external tool)"
- if [ "$INTERFACE_NAME" != "$INTERFACE" ]; then
- INTERFACE=$INTERFACE_NAME;
- echo "INTERFACE_NEW=$INTERFACE"
- fi
-else
- # if a rule using the current name already exists, find a new name
- if interface_name_taken; then
- INTERFACE="$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
-
-write_rule "$match" "$INTERFACE" "$COMMENT"
-
-unlock_rules_file
-
-exit 0
~ianmdlvl / elogind.git / blobdiff