def __init__(self, tool, config):
SELinuxEntryHandler.__init__(self, tool, config)
self.filetool = POSIXFile(config)
try:
self.setype = selinux.selinux_getpolicytype()[1]
except IndexError:
self.logger.error("Unable to determine SELinux policy type")
self.setype = None
def __init__(self, tool, logger, setup, config):
SELinuxEntryHandler.__init__(self, tool, logger, setup, config)
self.filetool = POSIXFile(logger, setup, config)
try:
self.setype = selinux.selinux_getpolicytype()[1]
except IndexError:
self.logger.error("Unable to determine SELinux policy type")
self.setype = None
def __init__(self, config):
POSIXTool.__init__(self, config)
self._augeas = dict()
# file tool for setting initial values of files that don't
# exist
self.filetool = POSIXFile(config)
class POSIXAugeas(POSIXTool):
""" Handle <Path type='augeas'...> entries. See
:ref:`client-tools-augeas`. """
__req__ = ['name', 'mode', 'owner', 'group']
def __init__(self, config):
POSIXTool.__init__(self, config)
self._augeas = dict()
# file tool for setting initial values of files that don't
# exist
self.filetool = POSIXFile(config)
def get_augeas(self, entry):
""" Get an augeas object for the given entry. """
if entry.get("name") not in self._augeas:
aug = Augeas()
if entry.get("lens"):
self.logger.debug("Augeas: Adding %s to include path for %s" %
(entry.get("name"), entry.get("lens")))
incl = "/augeas/load/%s/incl" % entry.get("lens")
ilen = len(aug.match(incl))
if ilen == 0:
self.logger.error("Augeas: Lens %s does not exist" %
entry.get("lens"))
else:
aug.set("%s[%s]" % (incl, ilen + 1), entry.get("name"))
aug.load()
self._augeas[entry.get("name")] = aug
return self._augeas[entry.get("name")]
def fully_specified(self, entry):
return len(entry.getchildren()) != 0
def get_commands(self, entry):
""" Get a list of commands to verify or install.
@param entry: The entry to get commands from.
@type entry: lxml.etree._Element
@param unverified: Only get commands that failed verification.
@type unverified: bool
@returns: list of
:class:`Bcfg2.Client.Tools.POSIX.Augeas.AugeasCommand`
objects representing the commands.
"""
rv = []
for cmd in entry.iterchildren():
if cmd.tag == "Initial":
continue
if cmd.tag in globals():
rv.append(globals()[cmd.tag](cmd, self.get_augeas(entry),
self.logger))
else:
err = "Augeas: Unknown command %s in %s" % (cmd.tag,
entry.get("name"))
self.logger.error(err)
entry.set('qtext', "\n".join([entry.get('qtext', ''), err]))
return rv
def verify(self, entry, modlist):
rv = True
for cmd in self.get_commands(entry):
try:
if not cmd.verify():
err = "Augeas: Command has not been applied to %s: %s" % \
(entry.get("name"), cmd)
self.logger.debug(err)
entry.set('qtext', "\n".join([entry.get('qtext', ''),
err]))
rv = False
cmd.command.set("verified", "false")
else:
cmd.command.set("verified", "true")
except: # pylint: disable=W0702
err = "Augeas: Unexpected error verifying %s: %s: %s" % \
(entry.get("name"), cmd, sys.exc_info()[1])
self.logger.error(err)
entry.set('qtext', "\n".join([entry.get('qtext', ''), err]))
rv = False
cmd.command.set("verified", "false")
return POSIXTool.verify(self, entry, modlist) and rv
def install(self, entry):
rv = True
if entry.get("current_exists", "true") == "false":
initial = entry.find("Initial")
if initial is not None:
self.logger.debug("Augeas: Setting initial data for %s" %
entry.get("name"))
file_entry = Bcfg2.Client.XML.Element("Path",
**dict(entry.attrib))
file_entry.text = initial.text
self.filetool.install(file_entry)
# re-parse the file
self.get_augeas(entry).load()
for cmd in self.get_commands(entry):
try:
cmd.install()
except: # pylint: disable=W0702
self.logger.error(
"Failure running Augeas command on %s: %s: %s" %
(entry.get("name"), cmd, sys.exc_info()[1]))
rv = False
try:
self.get_augeas(entry).save()
except: # pylint: disable=W0702
self.logger.error("Failure saving Augeas changes to %s: %s" %
(entry.get("name"), sys.exc_info()[1]))
rv = False
return POSIXTool.install(self, entry) and rv
class SELinuxSemoduleHandler(SELinuxEntryHandler):
""" handle SELinux module entries """
etype = "module"
value_format = (None, "disabled")
def __init__(self, tool, logger, setup, config):
SELinuxEntryHandler.__init__(self, tool, logger, setup, config)
self.filetool = POSIXFile(logger, setup, config)
try:
self.setype = selinux.selinux_getpolicytype()[1]
except IndexError:
self.logger.error("Unable to determine SELinux policy type")
self.setype = None
@property
def all_records(self):
if self._all is None:
try:
# we get a list of tuples back; coerce it into a dict
self._all = dict([(m[0], (m[1], m[2]))
for m in self.records.get_all()])
except AttributeError:
# early versions of seobject don't have moduleRecords,
# so we parse the output of `semodule` >_<
self._all = dict()
self.logger.debug("SELinux: Getting modules from semodule")
try:
rv = self.tool.cmd.run(['semodule', '-l'])
except OSError:
# semanage failed; probably not in $PATH. try to
# get the list of modules from the filesystem
err = sys.exc_info()[1]
self.logger.debug("SELinux: Failed to run semodule: %s" %
err)
self._all.update(self._all_records_from_filesystem())
else:
if rv.success:
# ran semodule successfully
for line in rv.stdout.splitlines():
mod, version = line.split()
self._all[mod] = (version, 1)
# get other (disabled) modules from the filesystem
for mod in self._all_records_from_filesystem().keys():
if mod not in self._all:
self._all[mod] = ('', 0)
else:
self.logger.error("SELinux: Failed to run semodule: %s"
% rv.error)
self._all.update(self._all_records_from_filesystem())
return self._all
def _all_records_from_filesystem(self):
""" the seobject API doesn't support modules and semodule is
broken or missing, so just list modules on the filesystem.
this is terrible. """
self.logger.debug("SELinux: Getting modules from filesystem")
rv = dict()
for mod in glob.glob(os.path.join("/usr/share/selinux", self.setype,
"*.pp")):
rv[os.path.basename(mod)[:-3]] = ('', 1)
return rv
def _key(self, entry):
name = entry.get("name").lstrip("/")
if name.endswith(".pp"):
return name[:-3]
else:
return name
def _key2attrs(self, key):
rv = SELinuxEntryHandler._key2attrs(self, key)
status = self.all_records[key][1]
if status:
rv['disabled'] = "false"
else:
rv['disabled'] = "true"
return rv
def _filepath(self, entry):
""" get the path to the .pp module file for this module entry
"""
return os.path.join("/usr/share/selinux", self.setype,
entry.get("name") + '.pp')
def _pathentry(self, entry):
""" Get an XML Path entry based on this SELinux module entry,
suitable for installing the module .pp file itself to the
filesystem """
pathentry = copy.deepcopy(entry)
pathentry.set("name", self._filepath(pathentry))
pathentry.set("mode", "0644")
pathentry.set("owner", "root")
pathentry.set("group", "root")
pathentry.set("secontext", "__default__")
return pathentry
def Verify(self, entry):
if not entry.get("disabled"):
entry.set("disabled", "false")
return (SELinuxEntryHandler.Verify(self, entry) and
self.filetool.verify(self._pathentry(entry), []))
def canInstall(self, entry):
return (entry.text and self.setype and
SELinuxEntryHandler.canInstall(self, entry))
def Install(self, entry, _=None):
if not self.filetool.install(self._pathentry(entry)):
return False
if hasattr(seobject, 'moduleRecords'):
# if seobject has the moduleRecords attribute, install the
# module using the seobject library
return self._install_seobject(entry)
else:
# seobject doesn't have the moduleRecords attribute, so
# install the module using `semodule`
self.logger.debug("Installing %s using semodule" %
entry.get("name"))
self._all = None
return self._install_semodule(entry)
def _install_seobject(self, entry):
""" Install an SELinux module using the seobject library """
try:
if not SELinuxEntryHandler.Install(self, entry):
return False
except NameError:
# some versions of selinux have a bug in seobject that
# makes modify() calls fail. add() seems to have the same
# effect as modify, but without the bug
if self.exists(entry):
if not SELinuxEntryHandler.Install(self, entry, method="add"):
return False
if entry.get("disabled", "false").lower() == "true":
method = "disable"
else:
method = "enable"
return SELinuxEntryHandler.Install(self, entry, method=method)
def _install_semodule(self, entry, fromqueue=False):
""" Install an SELinux module using the semodule command """
if fromqueue:
self.logger.debug("Installing SELinux module %s from "
"post-transaction queue" % entry.get("name"))
elif self.tool.txn:
# we've started a transaction, so if we run semodule -i
# then it'll fail with lock errors. so we add this
# installation to a queue to be run after the transaction
# is closed.
self.logger.debug("Waiting to install SELinux module %s until "
"SELinux transaction is finished" %
entry.get('name'))
self.tool.post_txn_queue.append((self._install_semodule,
(entry,),
dict(fromqueue=True)))
return False
self.logger.debug("Install SELinux module %s with semodule -i %s" %
(entry.get('name'), self._filepath(entry)))
try:
rv = self.tool.cmd.run(['semodule', '-i', self._filepath(entry)])
except OSError:
err = sys.exc_info()[1]
self.logger.error("Failed to install SELinux module %s with "
"semodule: %s" % (entry.get("name"), err))
return False
if rv.success:
if entry.get("disabled", "false").lower() == "true":
self.logger.warning("SELinux: Cannot disable modules with "
"semodule")
return False
else:
return True
else:
self.logger.error("Failed to install SELinux module %s with "
"semodule: %s" % (entry.get("name"), rv.error))
return False
def _addargs(self, entry):
""" argument list for adding entries """
return (self._filepath(entry),)
def _defaultargs(self, entry):
""" argument list for modifying and deleting entries """
return (entry.get("name"),)
def FindExtra(self):
specified = [self._key(e)
for e in self.tool.getSupportedEntries()]
rv = []
for module in self._all_records_from_filesystem().keys():
if module not in specified:
rv.append(self.key2entry(module))
return rv
class SELinuxSemoduleHandler(SELinuxEntryHandler):
""" handle SELinux module entries """
etype = "module"
value_format = (None, "disabled")
def __init__(self, tool, config):
SELinuxEntryHandler.__init__(self, tool, config)
self.filetool = POSIXFile(config)
try:
self.setype = selinux.selinux_getpolicytype()[1]
except IndexError:
self.logger.error("Unable to determine SELinux policy type")
self.setype = None
@property
def all_records(self):
if self._all is None:
try:
# we get a list of tuples back; coerce it into a dict
self._all = dict([(m[0], (m[1], m[2]))
for m in self.records.get_all()])
except AttributeError:
# early versions of seobject don't have moduleRecords,
# so we parse the output of `semodule` >_<
self._all = dict()
self.logger.debug("SELinux: Getting modules from semodule")
try:
rv = self.tool.cmd.run(['semodule', '-l'])
except OSError:
# semanage failed; probably not in $PATH. try to
# get the list of modules from the filesystem
err = sys.exc_info()[1]
self.logger.debug("SELinux: Failed to run semodule: %s" %
err)
self._all.update(self._all_records_from_filesystem())
else:
if rv.success:
# ran semodule successfully
for line in rv.stdout.splitlines():
mod, version = line.split()
self._all[mod] = (version, 1)
# get other (disabled) modules from the filesystem
for mod in self._all_records_from_filesystem().keys():
if mod not in self._all:
self._all[mod] = ('', 0)
else:
self.logger.error("SELinux: Failed to run semodule: %s"
% rv.error)
self._all.update(self._all_records_from_filesystem())
return self._all
def _all_records_from_filesystem(self):
""" the seobject API doesn't support modules and semodule is
broken or missing, so just list modules on the filesystem.
this is terrible. """
self.logger.debug("SELinux: Getting modules from filesystem")
rv = dict()
for mod in glob.glob(os.path.join("/usr/share/selinux", self.setype,
"*.pp")):
rv[os.path.basename(mod)[:-3]] = ('', 1)
return rv
def _key(self, entry):
name = entry.get("name").lstrip("/")
if name.endswith(".pp"):
return name[:-3]
else:
return name
def _key2attrs(self, key):
rv = SELinuxEntryHandler._key2attrs(self, key)
status = self.all_records[key][1]
if status:
rv['disabled'] = "false"
else:
rv['disabled'] = "true"
return rv
def _filepath(self, entry):
""" get the path to the .pp module file for this module entry
"""
return os.path.join("/usr/share/selinux", self.setype,
entry.get("name") + '.pp')
def _pathentry(self, entry):
""" Get an XML Path entry based on this SELinux module entry,
suitable for installing the module .pp file itself to the
filesystem """
pathentry = copy.deepcopy(entry)
pathentry.set("name", self._filepath(pathentry))
pathentry.set("mode", "0644")
pathentry.set("owner", "root")
pathentry.set("group", "root")
pathentry.set("secontext", "__default__")
return pathentry
def Verify(self, entry):
if not entry.get("disabled"):
entry.set("disabled", "false")
return (SELinuxEntryHandler.Verify(self, entry) and
self.filetool.verify(self._pathentry(entry), []))
def canInstall(self, entry):
return (entry.text and self.setype and
SELinuxEntryHandler.canInstall(self, entry))
def Install(self, entry, _=None):
if not self.filetool.install(self._pathentry(entry)):
return False
if hasattr(seobject, 'moduleRecords'):
# if seobject has the moduleRecords attribute, install the
# module using the seobject library
return self._install_seobject(entry)
else:
# seobject doesn't have the moduleRecords attribute, so
# install the module using `semodule`
self.logger.debug("Installing %s using semodule" %
entry.get("name"))
self._all = None
return self._install_semodule(entry)
def _install_seobject(self, entry):
""" Install an SELinux module using the seobject library """
try:
if not SELinuxEntryHandler.Install(self, entry):
return False
except NameError:
# some versions of selinux have a bug in seobject that
# makes modify() calls fail. add() seems to have the same
# effect as modify, but without the bug
if self.exists(entry):
if not SELinuxEntryHandler.Install(self, entry, method="add"):
return False
if entry.get("disabled", "false").lower() == "true":
method = "disable"
else:
method = "enable"
return SELinuxEntryHandler.Install(self, entry, method=method)
def _install_semodule(self, entry, fromqueue=False):
""" Install an SELinux module using the semodule command """
if fromqueue:
self.logger.debug("Installing SELinux module %s from "
"post-transaction queue" % entry.get("name"))
elif self.tool.txn:
# we've started a transaction, so if we run semodule -i
# then it'll fail with lock errors. so we add this
# installation to a queue to be run after the transaction
# is closed.
self.logger.debug("Waiting to install SELinux module %s until "
"SELinux transaction is finished" %
entry.get('name'))
self.tool.post_txn_queue.append((self._install_semodule,
(entry,),
dict(fromqueue=True)))
return False
self.logger.debug("Install SELinux module %s with semodule -i %s" %
(entry.get('name'), self._filepath(entry)))
try:
rv = self.tool.cmd.run(['semodule', '-i', self._filepath(entry)])
except OSError:
err = sys.exc_info()[1]
self.logger.error("Failed to install SELinux module %s with "
"semodule: %s" % (entry.get("name"), err))
return False
if rv.success:
if entry.get("disabled", "false").lower() == "true":
self.logger.warning("SELinux: Cannot disable modules with "
"semodule")
return False
else:
return True
else:
self.logger.error("Failed to install SELinux module %s with "
"semodule: %s" % (entry.get("name"), rv.error))
return False
def _addargs(self, entry):
""" argument list for adding entries """
return (self._filepath(entry),)
def _defaultargs(self, entry):
""" argument list for modifying and deleting entries """
return (entry.get("name"),)
def FindExtra(self):
specified = [self._key(e)
for e in self.tool.getSupportedEntries()]
rv = []
for module in self._all_records_from_filesystem().keys():
if module not in specified:
rv.append(self.key2entry(module))
return rv
def __init__(self, config):
POSIXTool.__init__(self, config)
self._augeas = dict()
# file tool for setting initial values of files that don't
# exist
self.filetool = POSIXFile(config)
class POSIXAugeas(POSIXTool):
""" Handle <Path type='augeas'...> entries. See
:ref:`client-tools-augeas`. """
__req__ = ['name', 'mode', 'owner', 'group']
def __init__(self, config):
POSIXTool.__init__(self, config)
self._augeas = dict()
# file tool for setting initial values of files that don't
# exist
self.filetool = POSIXFile(config)
def get_augeas(self, entry):
""" Get an augeas object for the given entry. """
if entry.get("name") not in self._augeas:
aug = Augeas()
if entry.get("lens"):
self.logger.debug("Augeas: Adding %s to include path for %s" %
(entry.get("name"), entry.get("lens")))
incl = "/augeas/load/%s/incl" % entry.get("lens")
ilen = len(aug.match(incl))
if ilen == 0:
self.logger.error("Augeas: Lens %s does not exist" %
entry.get("lens"))
else:
aug.set("%s[%s]" % (incl, ilen + 1), entry.get("name"))
aug.load()
self._augeas[entry.get("name")] = aug
return self._augeas[entry.get("name")]
def fully_specified(self, entry):
return len(entry.getchildren()) != 0
def get_commands(self, entry):
""" Get a list of commands to verify or install.
@param entry: The entry to get commands from.
@type entry: lxml.etree._Element
@param unverified: Only get commands that failed verification.
@type unverified: bool
@returns: list of
:class:`Bcfg2.Client.Tools.POSIX.Augeas.AugeasCommand`
objects representing the commands.
"""
rv = []
for cmd in entry:
if cmd.tag == "Initial":
continue
if cmd.tag in globals():
rv.append(globals()[cmd.tag](entry, cmd,
self.get_augeas(entry),
self.logger))
else:
err = "Augeas: Unknown command %s in %s" % (cmd.tag,
entry.get("name"))
self.logger.error(err)
entry.set('qtext', "\n".join([entry.get('qtext', ''), err]))
return rv
def verify(self, entry, modlist):
rv = True
for cmd in self.get_commands(entry):
try:
if not cmd.verify():
err = "Augeas: Command has not been applied to %s: %s" % \
(entry.get("name"), cmd)
self.logger.debug(err)
entry.set('qtext', "\n".join([entry.get('qtext', ''),
err]))
rv = False
cmd.command.set("verified", "false")
else:
cmd.command.set("verified", "true")
except: # pylint: disable=W0702
err = "Augeas: Unexpected error verifying %s: %s: %s" % \
(entry.get("name"), cmd, sys.exc_info()[1])
self.logger.error(err)
entry.set('qtext', "\n".join([entry.get('qtext', ''), err]))
rv = False
cmd.command.set("verified", "false")
return POSIXTool.verify(self, entry, modlist) and rv
def install(self, entry):
rv = True
if entry.get("current_exists", "true") == "false":
initial = entry.find("Initial")
if initial is not None:
self.logger.debug("Augeas: Setting initial data for %s" %
entry.get("name"))
file_entry = Bcfg2.Client.XML.Element("Path",
**dict(entry.attrib))
file_entry.text = initial.text
self.filetool.install(file_entry)
# re-parse the file
self.get_augeas(entry).load()
for cmd in self.get_commands(entry):
try:
cmd.install()
except: # pylint: disable=W0702
self.logger.error(
"Failure running Augeas command on %s: %s: %s" %
(entry.get("name"), cmd, sys.exc_info()[1]))
rv = False
try:
self.get_augeas(entry).save()
except: # pylint: disable=W0702
self.logger.error("Failure saving Augeas changes to %s: %s" %
(entry.get("name"), sys.exc_info()[1]))
rv = False
return POSIXTool.install(self, entry) and rv
