def test_match_filter_recurses_exec_command_filter_matches(self):
filter_list = [
filters.IpNetnsExecFilter(self._ip, 'root'),
filters.IpFilter(self._ip, 'root')
]
args = ['ip', 'netns', 'exec', 'foo', 'ip', 'link', 'list']
self.assertIsNotNone(wrapper.match_filter(filter_list, args))
def test_ChainingRegExpFilter_match(self):
filter_list = [filters.ChainingRegExpFilter('nice', 'root',
'nice', '-?\d+'),
filters.CommandFilter('cat', 'root')]
args = ['nice', '5', 'cat', '/a']
dirs = ['/bin', '/usr/bin']
self.assertIsNotNone(wrapper.match_filter(filter_list, args, dirs))
def test_ChainingRegExpFilter_match(self):
filter_list = [
filters.ChainingRegExpFilter("nice", "root", "nice", "-?\d+"),
filters.CommandFilter("cat", "root"),
]
args = ["nice", "5", "cat", "/a"]
dirs = ["/bin", "/usr/bin"]
self.assertIsNotNone(wrapper.match_filter(filter_list, args, dirs))
def test_ChainingRegExpFilter_match(self):
filter_list = [
filters.ChainingRegExpFilter('nice', 'root', 'nice', '-?\d+'),
filters.CommandFilter('cat', 'root')
]
args = ['nice', '5', 'cat', '/a']
dirs = ['/bin', '/usr/bin']
self.assertIsNotNone(wrapper.match_filter(filter_list, args, dirs))
def test_ChainingRegExpFilter_multiple(self):
filter_list = [
filters.ChainingRegExpFilter("ionice", "root", "ionice", "-c[0-3]"),
filters.ChainingRegExpFilter("ionice", "root", "ionice", "-c[0-3]", "-n[0-7]"),
filters.CommandFilter("cat", "root"),
]
# both filters match to ['ionice', '-c2'], but only the second accepts
args = ["ionice", "-c2", "-n7", "cat", "/a"]
dirs = ["/bin", "/usr/bin"]
self.assertIsNotNone(wrapper.match_filter(filter_list, args, dirs))
def test_ChainingRegExpFilter_multiple(self):
filter_list = [filters.ChainingRegExpFilter('ionice', 'root', 'ionice',
'-c[0-3]'),
filters.ChainingRegExpFilter('ionice', 'root', 'ionice',
'-c[0-3]', '-n[0-7]'),
filters.CommandFilter('cat', 'root')]
# both filters match to ['ionice', '-c2'], but only the second accepts
args = ['ionice', '-c2', '-n7', 'cat', '/a']
dirs = ['/bin', '/usr/bin']
self.assertIsNotNone(wrapper.match_filter(filter_list, args, dirs))
def test_ChainingRegExpFilter_multiple(self):
filter_list = [
filters.ChainingRegExpFilter('ionice', 'root', 'ionice',
'-c[0-3]'),
filters.ChainingRegExpFilter('ionice', 'root', 'ionice', '-c[0-3]',
'-n[0-7]'),
filters.CommandFilter('cat', 'root')
]
# both filters match to ['ionice', '-c2'], but only the second accepts
args = ['ionice', '-c2', '-n7', 'cat', '/a']
dirs = ['/bin', '/usr/bin']
self.assertIsNotNone(wrapper.match_filter(filter_list, args, dirs))
def test_RegExpFilter_match(self):
usercmd = ["ls", "/root"]
filtermatch = wrapper.match_filter(self.filters, usercmd)
self.assertFalse(filtermatch is None)
self.assertEqual(filtermatch.get_command(usercmd), ["/bin/ls", "/root"])
def test_skips(self):
# Check that all filters are skipped and that the last matches
usercmd = ["cat", "/"]
filtermatch = wrapper.match_filter(self.filters, usercmd)
self.assertTrue(filtermatch is self.filters[-1])
def test_match_filter_recurses_exec_command_filter_matches(self):
filter_list = [filters.IpNetnsExecFilter(self._ip, "root"), filters.IpFilter(self._ip, "root")]
args = ["ip", "netns", "exec", "foo", "ip", "link", "list"]
self.assertIsNotNone(wrapper.match_filter(filter_list, args))
def main():
# Split arguments, require at least a command
execname = sys.argv.pop(0)
if len(sys.argv) < 2:
_exit_error(execname, "No command specified", RC_NOCOMMAND, log=False)
configfile = sys.argv.pop(0)
userargs = sys.argv[:]
# Add ../ to sys.path to allow running from branch
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(execname),
os.pardir, os.pardir))
if os.path.exists(os.path.join(possible_topdir, "oslo", "__init__.py")):
sys.path.insert(0, possible_topdir)
from oslo.rootwrap import wrapper
# Load configuration
try:
rawconfig = moves.configparser.RawConfigParser()
rawconfig.read(configfile)
config = wrapper.RootwrapConfig(rawconfig)
except ValueError as exc:
msg = "Incorrect value in %s: %s" % (configfile, exc.message)
_exit_error(execname, msg, RC_BADCONFIG, log=False)
except moves.configparser.Error:
_exit_error(execname, "Incorrect configuration file: %s" % configfile,
RC_BADCONFIG, log=False)
if config.use_syslog:
wrapper.setup_syslog(execname,
config.syslog_log_facility,
config.syslog_log_level)
# Execute command if it matches any of the loaded filters
filters = wrapper.load_filters(config.filters_path)
try:
filtermatch = wrapper.match_filter(filters, userargs,
exec_dirs=config.exec_dirs)
if filtermatch:
command = filtermatch.get_command(userargs,
exec_dirs=config.exec_dirs)
if config.use_syslog:
logging.info("(%s > %s) Executing %s (filter match = %s)" % (
_getlogin(), pwd.getpwuid(os.getuid())[0],
command, filtermatch.name))
obj = subprocess.Popen(command,
stdin=sys.stdin,
stdout=sys.stdout,
stderr=sys.stderr,
preexec_fn=_subprocess_setup,
env=filtermatch.get_environment(userargs))
obj.wait()
sys.exit(obj.returncode)
except wrapper.FilterMatchNotExecutable as exc:
msg = ("Executable not found: %s (filter match = %s)"
% (exc.match.exec_path, exc.match.name))
_exit_error(execname, msg, RC_NOEXECFOUND, log=config.use_syslog)
except wrapper.NoFilterMatched:
msg = ("Unauthorized command: %s (no filter matched)"
% ' '.join(userargs))
_exit_error(execname, msg, RC_UNAUTHORIZED, log=config.use_syslog)
def test_match_filter_recurses_exec_command_filter_matches(self):
filter_list = [filters.IpNetnsExecFilter('/sbin/ip', 'root'),
filters.IpFilter('/sbin/ip', 'root')]
args = ['ip', 'netns', 'exec', 'foo', 'ip', 'link', 'list']
self.assertIsNotNone(wrapper.match_filter(filter_list, args))
def test_RegExpFilter_match(self):
usercmd = ["ls", "/root"]
filtermatch = wrapper.match_filter(self.filters, usercmd)
self.assertFalse(filtermatch is None)
self.assertEqual(filtermatch.get_command(usercmd),
["/bin/ls", "/root"])
def test_skips(self):
# Check that all filters are skipped and that the last matches
usercmd = ["cat", "/"]
filtermatch = wrapper.match_filter(self.filters, usercmd)
self.assertTrue(filtermatch is self.filters[-1])
def main():
# Split arguments, require at least a command
execname = sys.argv.pop(0)
if len(sys.argv) < 2:
_exit_error(execname, "No command specified", RC_NOCOMMAND, log=False)
configfile = sys.argv.pop(0)
userargs = sys.argv[:]
# Add ../ to sys.path to allow running from branch
possible_topdir = os.path.normpath(
os.path.join(os.path.abspath(execname), os.pardir, os.pardir))
if os.path.exists(os.path.join(possible_topdir, "oslo", "__init__.py")):
sys.path.insert(0, possible_topdir)
from oslo.rootwrap import wrapper
# Load configuration
try:
rawconfig = moves.configparser.RawConfigParser()
rawconfig.read(configfile)
config = wrapper.RootwrapConfig(rawconfig)
except ValueError as exc:
msg = "Incorrect value in %s: %s" % (configfile, exc.message)
_exit_error(execname, msg, RC_BADCONFIG, log=False)
except moves.configparser.Error:
_exit_error(execname,
"Incorrect configuration file: %s" % configfile,
RC_BADCONFIG,
log=False)
if config.use_syslog:
wrapper.setup_syslog(execname, config.syslog_log_facility,
config.syslog_log_level)
# Execute command if it matches any of the loaded filters
filters = wrapper.load_filters(config.filters_path)
try:
filtermatch = wrapper.match_filter(filters,
userargs,
exec_dirs=config.exec_dirs)
if filtermatch:
command = filtermatch.get_command(userargs,
exec_dirs=config.exec_dirs)
if config.use_syslog:
logging.info("(%s > %s) Executing %s (filter match = %s)" %
(_getlogin(), pwd.getpwuid(
os.getuid())[0], command, filtermatch.name))
obj = subprocess.Popen(command,
stdin=sys.stdin,
stdout=sys.stdout,
stderr=sys.stderr,
preexec_fn=_subprocess_setup,
env=filtermatch.get_environment(userargs))
obj.wait()
sys.exit(obj.returncode)
except wrapper.FilterMatchNotExecutable as exc:
msg = ("Executable not found: %s (filter match = %s)" %
(exc.match.exec_path, exc.match.name))
_exit_error(execname, msg, RC_NOEXECFOUND, log=config.use_syslog)
except wrapper.NoFilterMatched:
msg = ("Unauthorized command: %s (no filter matched)" %
' '.join(userargs))
_exit_error(execname, msg, RC_UNAUTHORIZED, log=config.use_syslog)