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This made Python 2's print behave like Python 3's print(). In some cases, where we had: from __future__ import print_function """Intended module documentation...""" this will have the side effect of making the intended module documentation work as the actual module documentation (i.e. becoming __doc__), because it is once again the first statement in the module. Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
# Tests for limiting processes forked on accept by the standard process model
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#
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# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""Tests limits on processes forked by fork on accept in the standard process
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model.
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NOTE: This test runs in an environment with an artificially low setting for
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smbd max processes
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"""
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import os
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from samba.tests import TestCase
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from samba.samdb import SamDB
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from ldb import LdbError, ERR_OPERATIONS_ERROR
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class StandardModelProcessLimitTests(TestCase):
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def setUp(self):
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super(StandardModelProcessLimitTests, self).setUp()
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def tearDown(self):
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super(StandardModelProcessLimitTests, self).tearDown()
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def simple_bind(self):
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creds = self.insta_creds(template=self.get_credentials())
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creds.set_bind_dn("%s\\%s" % (creds.get_domain(),
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creds.get_username()))
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return SamDB(url="ldaps://%s" % os.environ["SERVER"],
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lp=self.get_loadparm(),
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credentials=creds)
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def test_process_limits(self):
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creds = self.insta_creds(template=self.get_credentials())
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creds.set_bind_dn("%s\\%s" % (creds.get_domain(),
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creds.get_username()))
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connections = []
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try:
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# Open a series of LDAP connections, the maximum number of
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# active connections should be 20, so the 21st should fail.
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# But as it is possible that there may be other processes holding
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# connections, need to allow for earlier connection failures.
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for _ in range(21):
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connections.append(self.simple_bind())
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self.fail(
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"Processes not limited, able to make more than 20 connections")
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except LdbError as e:
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(errno, estr) = e.args
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if errno != ERR_OPERATIONS_ERROR:
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raise
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if not (estr.endswith("NT_STATUS_CONNECTION_DISCONNECTED") or
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estr.endswith("NT_STATUS_CONNECTION_RESET")):
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raise
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pass
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#
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# Clean up the connections we've just opened, by deleting the
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# connection in python. This should invoke the talloc destructor to
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# release any resources and close the actual connection to the server.
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for c in connections:
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del c
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