Current File : //proc/self/root/proc/self/root/lib/python2.7/site-packages/salt/modules/openbsd_sysctl.py
# -*- coding: utf-8 -*-
'''
Module for viewing and modifying OpenBSD sysctl parameters
'''
from __future__ import absolute_import, print_function, unicode_literals
import os
import re
# Import salt libs
from salt.ext import six
import salt.utils.data
import salt.utils.files
import salt.utils.stringutils
from salt.exceptions import CommandExecutionError
# Define the module's virtual name
__virtualname__ = 'sysctl'
def __virtual__():
'''
Only run on OpenBSD systems
'''
if __grains__['os'] == 'OpenBSD':
return __virtualname__
return (False, 'The openbsd_sysctl execution module cannot be loaded: '
'only available on OpenBSD systems.')
def show(config_file=False):
'''
Return a list of sysctl parameters for this minion
CLI Example:
.. code-block:: bash
salt '*' sysctl.show
'''
cmd = 'sysctl'
ret = {}
out = __salt__['cmd.run_stdout'](cmd, output_loglevel='trace')
for line in out.splitlines():
if not line or '=' not in line:
continue
comps = line.split('=', 1)
ret[comps[0]] = comps[1]
return ret
def get(name):
'''
Return a single sysctl parameter for this minion
CLI Example:
.. code-block:: bash
salt '*' sysctl.get hw.physmem
'''
cmd = 'sysctl -n {0}'.format(name)
out = __salt__['cmd.run'](cmd)
return out
def assign(name, value):
'''
Assign a single sysctl parameter for this minion
CLI Example:
.. code-block:: bash
salt '*' sysctl.assign net.inet.ip.forwarding 1
'''
ret = {}
cmd = 'sysctl {0}="{1}"'.format(name, value)
data = __salt__['cmd.run_all'](cmd)
# Certain values cannot be set from this console, at the current
# securelevel or there are other restrictions that prevent us
# from applying the setting rightaway.
if re.match(r'^sysctl:.*: Operation not permitted$', data['stderr']) or \
data['retcode'] != 0:
raise CommandExecutionError('sysctl failed: {0}'.format(
data['stderr']))
new_name, new_value = data['stdout'].split(':', 1)
ret[new_name] = new_value.split(' -> ')[-1]
return ret
def persist(name, value, config='/etc/sysctl.conf'):
'''
Assign and persist a simple sysctl parameter for this minion
CLI Example:
.. code-block:: bash
salt '*' sysctl.persist net.inet.ip.forwarding 1
'''
nlines = []
edited = False
value = six.text_type(value)
# create /etc/sysctl.conf if not present
if not os.path.isfile(config):
try:
with salt.utils.files.fopen(config, 'w+'):
pass
except (IOError, OSError):
msg = 'Could not create {0}'
raise CommandExecutionError(msg.format(config))
with salt.utils.files.fopen(config, 'r') as ifile:
for line in ifile:
line = salt.utils.stringutils.to_unicode(line)
if not line.startswith('{0}='.format(name)):
nlines.append(line)
continue
else:
key, rest = line.split('=', 1)
if rest.startswith('"'):
_, rest_v, rest = rest.split('"', 2)
elif rest.startswith('\''):
_, rest_v, rest = rest.split('\'', 2)
else:
rest_v = rest.split()[0]
rest = rest[len(rest_v):]
if rest_v == value:
return 'Already set'
new_line = '{0}={1}{2}'.format(key, value, rest)
nlines.append(new_line)
edited = True
if not edited:
nlines.append('{0}={1}\n'.format(name, value))
with salt.utils.files.fopen(config, 'wb') as ofile:
ofile.writelines(salt.utils.data.encode(nlines))
assign(name, value)
return 'Updated'
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