455cabdee3
This way device eth10 is after eth9, and not directly after eth1 Change-Id: I81eba97cccf6c4f314f9037d16ee1f244dbade02 Closes-Bug: #1482818
109 lines
3.1 KiB
Python
109 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright 2014 Red Hat, Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import glob
|
|
import logging
|
|
import os
|
|
import re
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
_SYS_CLASS_NET = '/sys/class/net'
|
|
|
|
|
|
def write_config(filename, data):
|
|
with open(filename, 'w') as f:
|
|
f.write(str(data))
|
|
|
|
|
|
def get_file_data(filename):
|
|
if not os.path.exists(filename):
|
|
return ''
|
|
|
|
try:
|
|
with open(filename, 'r') as f:
|
|
return f.read()
|
|
except IOError:
|
|
logger.error("Error reading file: %s" % filename)
|
|
return ''
|
|
|
|
|
|
def interface_mac(name):
|
|
try:
|
|
with open('/sys/class/net/%s/address' % name, 'r') as f:
|
|
return f.read().rstrip()
|
|
except IOError:
|
|
logger.error("Unable to read mac address: %s" % name)
|
|
raise
|
|
|
|
|
|
def _is_active_nic(interface_name):
|
|
try:
|
|
if interface_name == 'lo':
|
|
return False
|
|
|
|
addr_assign_type = None
|
|
with open(_SYS_CLASS_NET + '/%s/addr_assign_type' % interface_name,
|
|
'r') as f:
|
|
addr_assign_type = int(f.read().rstrip())
|
|
|
|
carrier = None
|
|
with open(_SYS_CLASS_NET + '/%s/carrier' % interface_name, 'r') as f:
|
|
carrier = int(f.read().rstrip())
|
|
|
|
address = None
|
|
with open(_SYS_CLASS_NET + '/%s/address' % interface_name, 'r') as f:
|
|
address = f.read().rstrip()
|
|
|
|
if addr_assign_type == 0 and carrier == 1 and address:
|
|
return True
|
|
else:
|
|
return False
|
|
except IOError:
|
|
return False
|
|
|
|
|
|
def _natural_sort_key(s):
|
|
nsre = re.compile('([0-9]+)')
|
|
return [int(text) if text.isdigit() else text
|
|
for text in re.split(nsre, s)]
|
|
|
|
|
|
def ordered_active_nics():
|
|
embedded_nics = []
|
|
nics = []
|
|
for name in glob.iglob(_SYS_CLASS_NET + '/*'):
|
|
nic = name[(len(_SYS_CLASS_NET) + 1):]
|
|
if _is_active_nic(nic):
|
|
if nic.startswith('em') or nic.startswith('eth') or \
|
|
nic.startswith('eno'):
|
|
embedded_nics.append(nic)
|
|
else:
|
|
nics.append(nic)
|
|
# NOTE: we could just natural sort all active devices,
|
|
# but this ensures em, eno, and eth are ordered first
|
|
# (more backwards compatible)
|
|
return (sorted(embedded_nics, key=_natural_sort_key) +
|
|
sorted(nics, key=_natural_sort_key))
|
|
|
|
|
|
def diff(filename, data):
|
|
file_data = get_file_data(filename)
|
|
logger.debug("Diff file data:\n%s" % file_data)
|
|
logger.debug("Diff data:\n%s" % data)
|
|
# convert to string as JSON may have unicode in it
|
|
return not file_data == data
|