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068a729037
Ticket: CM-2899 Reviewed By: Testing Done: Tested ifupdown sanity Just closing all the places where we could leak fds.
72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
#!/usr/bin/python
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#
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# Copyright 2013. Cumulus Networks, Inc.
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# Author: Roopa Prabhu, roopa@cumulusnetworks.com
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#
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# ifupdownBase --
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# base object for various ifupdown objects
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#
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import logging
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import subprocess
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import re
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import os
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from ifupdown.iface import *
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class ifupdownBase(object):
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def __init__(self):
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modulename = self.__class__.__name__
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self.logger = logging.getLogger('ifupdown.' + modulename)
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def exec_command(self, cmd, cmdenv=None, nowait=False):
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cmd_returncode = 0
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cmdout = ''
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try:
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self.logger.info('Executing ' + cmd)
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if self.DRYRUN:
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return cmdout
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ch = subprocess.Popen(cmd.split(),
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stdout=subprocess.PIPE,
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shell=False, env=cmdenv,
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stderr=subprocess.STDOUT,
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close_fds=True)
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cmdout = ch.communicate()[0]
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cmd_returncode = ch.wait()
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except OSError, e:
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raise Exception('could not execute ' + cmd +
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'(' + str(e) + ')')
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if cmd_returncode != 0:
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raise Exception('error executing cmd \'%s\'' %cmd +
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'\n(' + cmdout.strip('\n ') + ')')
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return cmdout
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def ignore_error(self, errmsg):
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if (self.FORCE == True or re.search(r'exists', errmsg,
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re.IGNORECASE | re.MULTILINE) is not None):
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return True
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return False
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def log_warn(self, str):
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if self.ignore_error(str) == False:
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if self.logger.getEffectiveLevel() == logging.DEBUG:
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traceback.print_stack()
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self.logger.warn(str)
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pass
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def log_error(self, str):
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if self.ignore_error(str) == False:
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raise
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#raise Exception(str)
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else:
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pass
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def link_exists(self, ifacename):
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return os.path.exists('/sys/class/net/%s' %ifacename)
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def link_up(self, ifacename):
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self.exec_command('ifconfig %s up' %ifacename)
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def link_down(self, ifacename):
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self.exec_command('ifconfig %s down' %ifacename)
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