#!/usr/bin/env python
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#
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# Copyright (C) 2016 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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from vts.runners.host import const
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from vts.runners.host import asserts
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from vts.runners.host import base_test
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from vts.runners.host import test_runner
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from vts.utils.python.controllers import android_device
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class VtsKernelSyscallExistenceTest(base_test.BaseTestClass):
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"""Tests to verify kernel syscall interface."""
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def setUpClass(self):
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self.dut = self.android_devices[0]
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if "arm" in self.dut.cpu_abi:
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self.ARCH64__NR_name_to_handle_at = 264
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self.ARCH64__NR_open_by_handle_at = 265
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self.ARCH64__NR_uselib = 1077
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elif "x86" in self.dut.cpu_abi:
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self.ARCH64__NR_name_to_handle_at = 303
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self.ARCH64__NR_open_by_handle_at = 304
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self.ARCH64__NR_uselib = 134
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else:
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asserts.fail("Unknown CPU ABI: %s" % self.dut.cpu_abi)
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def tearDown(self):
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results = self.dut.shell.Execute("which ls")
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logging.info(str(results[const.STDOUT]))
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asserts.assertEqual(len(results[const.STDOUT]), 1)
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asserts.assertEqual(results[const.STDOUT][0].strip(), "/system/bin/ls")
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asserts.assertEqual(results[const.EXIT_CODE][0], 0)
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def testSyscall_name_to_handle_at(self):
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"""Testcase to verify syscall [name_to_handle_at] is disabled."""
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if self.dut.is64Bit:
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logging.info("testing syscall: name_to_handle_at [%d]",
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self.ARCH64__NR_name_to_handle_at)
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asserts.assertTrue(self.SyscallDisabled(self.ARCH64__NR_name_to_handle_at),
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"syscall [name_to_handle_at] should be disabled")
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else:
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asserts.skip("32-bit not supported")
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def testSyscall_open_by_handle_at(self):
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"""Testcase to verify syscall [open_by_handle_at] is disabled."""
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if self.dut.is64Bit:
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logging.info("testing syscall: open_by_handle_at [%d]",
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self.ARCH64__NR_open_by_handle_at)
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asserts.assertTrue(self.SyscallDisabled(self.ARCH64__NR_open_by_handle_at),
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"syscall [open_by_handle_at] should be disabled")
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else:
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asserts.skip("32-bit not supported")
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def testSyscall_uselib(self):
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"""Testcase to verify syscall [uselib] is disabled."""
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if self.dut.is64Bit:
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logging.info("testing syscall: uselib [%d]",
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self.ARCH64__NR_uselib)
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asserts.assertTrue(self.SyscallDisabled(self.ARCH64__NR_uselib),
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"syscall [uselib] should be disabled")
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else:
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asserts.skip("32-bit not supported")
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def SyscallDisabled(self, syscallid):
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"""Helper function to check if a syscall is disabled."""
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target = "/data/local/tmp/64/vts_test_binary_syscall_exists"
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results = self.dut.shell.Execute([
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"chmod 755 %s" % target,
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"%s %d" % (target, syscallid)
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])
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return len(results[const.STDOUT]) == 2 and results[const.STDOUT][1].strip() == "n"
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if __name__ == "__main__":
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test_runner.main()
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