183 lines
7.6 KiB
Python
183 lines
7.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import mock
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import unittest2 as unittest
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from quantum.common import utils
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from quantum.rootwrap import filters
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from quantum.rootwrap import wrapper
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class RootwrapTestCase(unittest.TestCase):
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def setUp(self):
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super(RootwrapTestCase, self).setUp()
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self.filters = [
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filters.RegExpFilter("/bin/ls", "root", 'ls', '/[a-z]+'),
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filters.CommandFilter("/usr/bin/foo_bar_not_exist", "root"),
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filters.RegExpFilter("/bin/cat", "root", 'cat', '/[a-z]+'),
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filters.CommandFilter("/nonexistant/cat", "root"),
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filters.CommandFilter("/bin/cat", "root")] # Keep this one last
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def tearDown(self):
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super(RootwrapTestCase, self).tearDown()
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def test_RegExpFilter_match(self):
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usercmd = ["ls", "/root"]
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filtermatch = wrapper.match_filter(self.filters, usercmd)
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self.assertFalse(filtermatch is None)
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self.assertEqual(filtermatch.get_command(usercmd),
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["/bin/ls", "/root"])
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def test_RegExpFilter_reject(self):
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usercmd = ["ls", "root"]
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filtermatch = wrapper.match_filter(self.filters, usercmd)
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self.assertTrue(filtermatch is None)
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def test_missing_command(self):
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valid_but_missing = ["foo_bar_not_exist"]
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invalid = ["foo_bar_not_exist_and_not_matched"]
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filtermatch = wrapper.match_filter(self.filters, valid_but_missing)
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self.assertTrue(filtermatch is not None)
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filtermatch = wrapper.match_filter(self.filters, invalid)
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self.assertTrue(filtermatch is None)
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def test_DnsmasqFilter(self):
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usercmd = ['QUANTUM_RELAY_SOCKET_PATH=A', 'QUANTUM_NETWORK_ID=foobar',
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'dnsmasq', 'foo']
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f = filters.DnsmasqFilter("/usr/bin/dnsmasq", "root")
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self.assertTrue(f.match(usercmd))
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self.assertEqual(f.get_command(usercmd), ['/usr/bin/dnsmasq', 'foo'])
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env = f.get_environment(usercmd)
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self.assertEqual(env.get('QUANTUM_RELAY_SOCKET_PATH'), 'A')
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self.assertEqual(env.get('QUANTUM_NETWORK_ID'), 'foobar')
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def test_DnsmasqNetnsFilter(self):
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usercmd = ['QUANTUM_RELAY_SOCKET_PATH=A', 'QUANTUM_NETWORK_ID=foobar',
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'ip', 'netns', 'exec', 'foo', 'dnsmasq', 'foo']
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f = filters.DnsmasqNetnsFilter("/sbin/ip", "root")
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self.assertTrue(f.match(usercmd))
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self.assertEqual(f.get_command(usercmd), ['/sbin/ip', 'netns', 'exec',
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'foo', 'dnsmasq', 'foo'])
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env = f.get_environment(usercmd)
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self.assertEqual(env.get('QUANTUM_RELAY_SOCKET_PATH'), 'A')
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self.assertEqual(env.get('QUANTUM_NETWORK_ID'), 'foobar')
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def test_KillFilter(self):
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p = utils.subprocess_popen(["/bin/sleep", "5"])
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f = filters.KillFilter("root", "/bin/sleep", "-9", "-HUP")
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f2 = filters.KillFilter("root", "/usr/bin/sleep", "-9", "-HUP")
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usercmd = ['kill', '-ALRM', p.pid]
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# Incorrect signal should fail
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self.assertFalse(f.match(usercmd) or f2.match(usercmd))
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usercmd = ['kill', p.pid]
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# Providing no signal should fail
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self.assertFalse(f.match(usercmd) or f2.match(usercmd))
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# Providing matching signal should be allowed
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usercmd = ['kill', '-9', p.pid]
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self.assertTrue(f.match(usercmd) or f2.match(usercmd))
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f = filters.KillFilter("root", "/bin/sleep")
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f2 = filters.KillFilter("root", "/usr/bin/sleep")
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usercmd = ['kill', os.getpid()]
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# Our own PID does not match /bin/sleep, so it should fail
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self.assertFalse(f.match(usercmd) or f2.match(usercmd))
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usercmd = ['kill', 999999]
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# Nonexistant PID should fail
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self.assertFalse(f.match(usercmd) or f2.match(usercmd))
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usercmd = ['kill', p.pid]
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# Providing no signal should work
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self.assertTrue(f.match(usercmd) or f2.match(usercmd))
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def test_KillFilter_no_raise(self):
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"""Makes sure ValueError from bug 926412 is gone"""
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f = filters.KillFilter("root", "")
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# Providing anything other than kill should be False
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usercmd = ['notkill', 999999]
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self.assertFalse(f.match(usercmd))
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# Providing something that is not a pid should be False
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usercmd = ['kill', 'notapid']
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self.assertFalse(f.match(usercmd))
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def test_KillFilter_deleted_exe(self):
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"""Makes sure deleted exe's are killed correctly"""
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# See bug #1073768.
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with mock.patch('os.readlink') as mock_readlink:
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mock_readlink.return_value = '/bin/commandddddd (deleted)'
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f = filters.KillFilter("root", "/bin/commandddddd")
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usercmd = ['kill', 1234]
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self.assertTrue(f.match(usercmd))
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mock_readlink.assert_called_once_with("/proc/1234/exe")
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def test_ReadFileFilter(self):
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goodfn = '/good/file.name'
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f = filters.ReadFileFilter(goodfn)
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usercmd = ['cat', '/bad/file']
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self.assertFalse(f.match(['cat', '/bad/file']))
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usercmd = ['cat', goodfn]
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self.assertEqual(f.get_command(usercmd), ['/bin/cat', goodfn])
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self.assertTrue(f.match(usercmd))
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def test_IpFilter_non_netns(self):
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f = filters.IpFilter('/sbin/ip', 'root')
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self.assertTrue(f.match(['ip', 'link', 'list']))
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def _test_IpFilter_netns_helper(self, action):
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f = filters.IpFilter('/sbin/ip', 'root')
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self.assertTrue(f.match(['ip', 'link', action]))
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def test_IpFilter_netns_add(self):
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self._test_IpFilter_netns_helper('add')
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def test_IpFilter_netns_delete(self):
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self._test_IpFilter_netns_helper('delete')
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def test_IpFilter_netns_list(self):
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self._test_IpFilter_netns_helper('list')
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def test_IpNetnsExecFilter_match(self):
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f = filters.IpNetnsExecFilter('/sbin/ip', 'root')
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self.assertTrue(
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f.match(['ip', 'netns', 'exec', 'foo', 'ip', 'link', 'list']))
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def test_IpNetnsExecFilter_nomatch(self):
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f = filters.IpNetnsExecFilter('/sbin/ip', 'root')
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self.assertFalse(f.match(['ip', 'link', 'list']))
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def test_match_filter_recurses_exec_command_filter(self):
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filter_list = [filters.IpNetnsExecFilter('/sbin/ip', 'root'),
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filters.IpFilter('/sbin/ip', 'root')]
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args = ['ip', 'netns', 'exec', 'foo', 'ip', 'link', 'list']
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self.assertIsNotNone(wrapper.match_filter(filter_list, args))
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def test_match_filter_recurses_exec_command_filter(self):
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filter_list = [filters.IpNetnsExecFilter('/sbin/ip', 'root'),
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filters.IpFilter('/sbin/ip', 'root')]
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args = ['ip', 'netns', 'exec', 'foo', 'ip', 'netns', 'exec', 'bar',
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'ip', 'link', 'list']
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self.assertIsNone(wrapper.match_filter(filter_list, args))
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def test_skips(self):
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# Check that all filters are skipped and that the last matches
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usercmd = ["cat", "/"]
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filtermatch = wrapper.match_filter(self.filters, usercmd)
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self.assertTrue(filtermatch is self.filters[-1])
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