projects / mirror_ifupdown2.git / blame
| Commit | Line | Data |
|---|---|---|
| 2c8c4ce7 RP |
1 | #!/usr/bin/python |
| 2 | # | |
| 3 | # Copyright 2014 Cumulus Networks, Inc. All rights reserved. | |
| 4 | # Author: Roopa Prabhu, roopa@cumulusnetworks.com | |
| 5 | # | |
| 6 | # ifupdownBase -- | |
| 7 | # base object for various ifupdown objects | |
| 8 | # | |
| 9 | ||
| 10 | import logging | |
| 11 | import subprocess | |
| 12 | import re | |
| 13 | import os | |
| 14 | from iface import * | |
| f82758bf | 15 | import rtnetlink_api as rtnetlink_api |
| 2c8c4ce7 RP |
16 | |
| 17 | class ifupdownBase(object): | |
| 18 | ||
| 19 | def __init__(self): | |
| 20 | modulename = self.__class__.__name__ | |
| 21 | self.logger = logging.getLogger('ifupdown.' + modulename) | |
| 22 | ||
| 23 | def exec_command(self, cmd, cmdenv=None, nowait=False): | |
| 24 | cmd_returncode = 0 | |
| 25 | cmdout = '' | |
| 26 | try: | |
| 27 | self.logger.info('Executing ' + cmd) | |
| 28 | if self.DRYRUN: | |
| 29 | return cmdout | |
| 30 | ch = subprocess.Popen(cmd.split(), | |
| 31 | stdout=subprocess.PIPE, | |
| 32 | shell=False, env=cmdenv, | |
| 33 | stderr=subprocess.STDOUT, | |
| 34 | close_fds=True) | |
| 35 | cmdout = ch.communicate()[0] | |
| 36 | cmd_returncode = ch.wait() | |
| 37 | except OSError, e: | |
| 38 | raise Exception('could not execute ' + cmd + | |
| 39 | '(' + str(e) + ')') | |
| 40 | if cmd_returncode != 0: | |
| 41 | raise Exception('error executing cmd \'%s\'' %cmd + | |
| 42 | '\n(' + cmdout.strip('\n ') + ')') | |
| 43 | return cmdout | |
| 44 | ||
| 45 | def ignore_error(self, errmsg): | |
| 46 | if (self.FORCE == True or re.search(r'exists', errmsg, | |
| 47 | re.IGNORECASE | re.MULTILINE) is not None): | |
| 48 | return True | |
| 49 | return False | |
| 50 | ||
| 51 | def log_warn(self, str): | |
| 52 | if self.ignore_error(str) == False: | |
| 53 | if self.logger.getEffectiveLevel() == logging.DEBUG: | |
| 54 | traceback.print_stack() | |
| 55 | self.logger.warn(str) | |
| 56 | pass | |
| 57 | ||
| 58 | def log_error(self, str): | |
| 59 | if self.ignore_error(str) == False: | |
| 60 | raise | |
| 61 | #raise Exception(str) | |
| 62 | else: | |
| 63 | pass | |
| 64 | ||
| 65 | def link_exists(self, ifacename): | |
| 66 | return os.path.exists('/sys/class/net/%s' %ifacename) | |
| 67 | ||
| 68 | def link_up(self, ifacename): | |
| f82758bf | 69 | rtnetlink_api.rtnl_api.link_set(ifacename, "up") |
| 2c8c4ce7 RP |
70 | |
| 71 | def link_down(self, ifacename): | |
| f82758bf | 72 | rtnetlink_api.rtnl_api.link_set(ifacename, "down") |