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plugin_sysfs: added simple check to sysfs path

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This commit is contained in:
Jaroslav Škarvada 2012-12-02 21:02:26 +01:00
parent 6c36daaebf
commit d85520db2e
1 changed files with 18 additions and 4 deletions
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22
tuned/plugins/plugin_sysfs.py
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@ -1,4 +1,5 @@
import base
import re
import os.path
from decorators import *
import tuned.logs
@ -18,6 +19,10 @@ class SysfsPlugin(base.Plugin):
self._sysfs_original = {}
self._sysfs = self._options
_sysfs = {}
for key, value in self._sysfs.iteritems():
_sysfs[os.path.normpath(key)] = value
self._sysfs = _sysfs
for key, value in self._sysfs.iteritems():
self._sysfs_original[key] = self._read_sysfs(key)
@ -29,15 +34,24 @@ class SysfsPlugin(base.Plugin):
def _get_default_options(cls):
return {}
def _check_sysfs(self, sysfs_file):
if not re.match(r"^/sys/.*", sysfs_file):
log.error("rejecting access to '%s', it doesn't seem to be sysfs tuning" % sysfs_file)
return False
return True
def _read_sysfs(self, sysfs_file):
data = tuned.utils.commands.read_file(sysfs_file)
value = None
if len(data):
value = tuned.utils.commands.get_active_option(data, False)
if self._check_sysfs(sysfs_file):
data = tuned.utils.commands.read_file(sysfs_file)
if len(data):
value = tuned.utils.commands.get_active_option(data, False)
return value
def _write_sysfs(self, sysfs_file, value):
return tuned.utils.commands.write_to_file(sysfs_file, value)
if self._check_sysfs(sysfs_file):
return tuned.utils.commands.write_to_file(sysfs_file, value)
return False
def _apply_sysfs(self):
for key, value in self._sysfs.iteritems():