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7b3c2348d3
Some of the tests for unfused parts referenced a named member parameter,
but when the test suite was switched to call a python ctypes library they
weren't updated. Adjust them to refer to the first argument of the
process_param() call and set the data type of the signature appropriately.
Fixes: 15f8aa7bb3 ("crypto: ccp - Add unit tests for dynamic boost control")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
276 lines
9.4 KiB
Python
Executable File
276 lines
9.4 KiB
Python
Executable File
#!/usr/bin/python3
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# SPDX-License-Identifier: GPL-2.0
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import unittest
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import os
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import time
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import glob
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import fcntl
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try:
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import ioctl_opt as ioctl
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except ImportError:
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ioctl = None
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pass
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from dbc import *
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# Artificial delay between set commands
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SET_DELAY = 0.5
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class invalid_param(ctypes.Structure):
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_fields_ = [
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("data", ctypes.c_uint8),
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]
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def system_is_secured() -> bool:
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fused_part = glob.glob("/sys/bus/pci/drivers/ccp/**/fused_part")[0]
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if os.path.exists(fused_part):
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with open(fused_part, "r") as r:
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return int(r.read()) == 1
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return True
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class DynamicBoostControlTest(unittest.TestCase):
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def __init__(self, data) -> None:
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self.d = None
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self.signature = b"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
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self.uid = b"1111111111111111"
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super().__init__(data)
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def setUp(self) -> None:
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self.d = open(DEVICE_NODE)
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return super().setUp()
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def tearDown(self) -> None:
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if self.d:
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self.d.close()
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return super().tearDown()
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class TestUnsupportedSystem(DynamicBoostControlTest):
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def setUp(self) -> None:
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if os.path.exists(DEVICE_NODE):
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self.skipTest("system is supported")
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with self.assertRaises(FileNotFoundError) as error:
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super().setUp()
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self.assertEqual(error.exception.errno, 2)
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def test_unauthenticated_nonce(self) -> None:
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"""fetch unauthenticated nonce"""
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with self.assertRaises(ValueError) as error:
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get_nonce(self.d, None)
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class TestInvalidIoctls(DynamicBoostControlTest):
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def __init__(self, data) -> None:
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self.data = invalid_param()
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self.data.data = 1
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super().__init__(data)
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def setUp(self) -> None:
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if not os.path.exists(DEVICE_NODE):
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self.skipTest("system is unsupported")
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if not ioctl:
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self.skipTest("unable to test IOCTLs without ioctl_opt")
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return super().setUp()
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def test_invalid_nonce_ioctl(self) -> None:
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"""tries to call get_nonce ioctl with invalid data structures"""
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# 0x1 (get nonce), and invalid data
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INVALID1 = ioctl.IOWR(ord("D"), 0x01, invalid_param)
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with self.assertRaises(OSError) as error:
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fcntl.ioctl(self.d, INVALID1, self.data, True)
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self.assertEqual(error.exception.errno, 22)
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def test_invalid_setuid_ioctl(self) -> None:
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"""tries to call set_uid ioctl with invalid data structures"""
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# 0x2 (set uid), and invalid data
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INVALID2 = ioctl.IOW(ord("D"), 0x02, invalid_param)
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with self.assertRaises(OSError) as error:
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fcntl.ioctl(self.d, INVALID2, self.data, True)
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self.assertEqual(error.exception.errno, 22)
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def test_invalid_setuid_rw_ioctl(self) -> None:
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"""tries to call set_uid ioctl with invalid data structures"""
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# 0x2 as RW (set uid), and invalid data
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INVALID3 = ioctl.IOWR(ord("D"), 0x02, invalid_param)
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with self.assertRaises(OSError) as error:
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fcntl.ioctl(self.d, INVALID3, self.data, True)
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self.assertEqual(error.exception.errno, 22)
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def test_invalid_param_ioctl(self) -> None:
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"""tries to call param ioctl with invalid data structures"""
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# 0x3 (param), and invalid data
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INVALID4 = ioctl.IOWR(ord("D"), 0x03, invalid_param)
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with self.assertRaises(OSError) as error:
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fcntl.ioctl(self.d, INVALID4, self.data, True)
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self.assertEqual(error.exception.errno, 22)
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def test_invalid_call_ioctl(self) -> None:
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"""tries to call the DBC ioctl with invalid data structures"""
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# 0x4, and invalid data
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INVALID5 = ioctl.IOWR(ord("D"), 0x04, invalid_param)
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with self.assertRaises(OSError) as error:
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fcntl.ioctl(self.d, INVALID5, self.data, True)
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self.assertEqual(error.exception.errno, 22)
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class TestInvalidSignature(DynamicBoostControlTest):
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def setUp(self) -> None:
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if not os.path.exists(DEVICE_NODE):
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self.skipTest("system is unsupported")
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if not system_is_secured():
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self.skipTest("system is unfused")
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return super().setUp()
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def test_unauthenticated_nonce(self) -> None:
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"""fetch unauthenticated nonce"""
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get_nonce(self.d, None)
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def test_multiple_unauthenticated_nonce(self) -> None:
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"""ensure state machine always returns nonce"""
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for count in range(0, 2):
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get_nonce(self.d, None)
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def test_authenticated_nonce(self) -> None:
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"""fetch authenticated nonce"""
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with self.assertRaises(OSError) as error:
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get_nonce(self.d, self.signature)
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self.assertEqual(error.exception.errno, 1)
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def test_set_uid(self) -> None:
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"""set uid"""
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with self.assertRaises(OSError) as error:
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set_uid(self.d, self.uid, self.signature)
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self.assertEqual(error.exception.errno, 1)
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def test_get_param(self) -> None:
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"""fetch a parameter"""
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with self.assertRaises(OSError) as error:
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process_param(self.d, PARAM_GET_SOC_PWR_CUR, self.signature)
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self.assertEqual(error.exception.errno, 1)
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def test_set_param(self) -> None:
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"""set a parameter"""
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with self.assertRaises(OSError) as error:
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process_param(self.d, PARAM_SET_PWR_CAP, self.signature, 1000)
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self.assertEqual(error.exception.errno, 1)
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class TestUnFusedSystem(DynamicBoostControlTest):
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def setup_identity(self) -> None:
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"""sets up the identity of the caller"""
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# if already authenticated these may fail
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try:
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get_nonce(self.d, None)
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except PermissionError:
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pass
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try:
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set_uid(self.d, self.uid, self.signature)
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except BlockingIOError:
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pass
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try:
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get_nonce(self.d, self.signature)
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except PermissionError:
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pass
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def setUp(self) -> None:
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if not os.path.exists(DEVICE_NODE):
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self.skipTest("system is unsupported")
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if system_is_secured():
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self.skipTest("system is fused")
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super().setUp()
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self.setup_identity()
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time.sleep(SET_DELAY)
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def test_get_valid_param(self) -> None:
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"""fetch all possible parameters"""
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# SOC power
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soc_power_max = process_param(self.d, PARAM_GET_SOC_PWR_MAX, self.signature)
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soc_power_min = process_param(self.d, PARAM_GET_SOC_PWR_MIN, self.signature)
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self.assertGreater(soc_power_max[0], soc_power_min[0])
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# fmax
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fmax_max = process_param(self.d, PARAM_GET_FMAX_MAX, self.signature)
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fmax_min = process_param(self.d, PARAM_GET_FMAX_MIN, self.signature)
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self.assertGreater(fmax_max[0], fmax_min[0])
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# cap values
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keys = {
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"fmax-cap": PARAM_GET_FMAX_CAP,
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"power-cap": PARAM_GET_PWR_CAP,
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"current-temp": PARAM_GET_CURR_TEMP,
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"soc-power-cur": PARAM_GET_SOC_PWR_CUR,
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}
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for k in keys:
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result = process_param(self.d, keys[k], self.signature)
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self.assertGreater(result[0], 0)
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def test_get_invalid_param(self) -> None:
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"""fetch an invalid parameter"""
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try:
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set_uid(self.d, self.uid, self.signature)
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except OSError:
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pass
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with self.assertRaises(OSError) as error:
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process_param(self.d, (0xF,), self.signature)
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self.assertEqual(error.exception.errno, 22)
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def test_set_fmax(self) -> None:
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"""get/set fmax limit"""
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# fetch current
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original = process_param(self.d, PARAM_GET_FMAX_CAP, self.signature)
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# set the fmax
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target = original[0] - 100
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process_param(self.d, PARAM_SET_FMAX_CAP, self.signature, target)
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time.sleep(SET_DELAY)
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new = process_param(self.d, PARAM_GET_FMAX_CAP, self.signature)
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self.assertEqual(new[0], target)
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# revert back to current
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process_param(self.d, PARAM_SET_FMAX_CAP, self.signature, original[0])
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time.sleep(SET_DELAY)
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cur = process_param(self.d, PARAM_GET_FMAX_CAP, self.signature)
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self.assertEqual(cur[0], original[0])
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def test_set_power_cap(self) -> None:
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"""get/set power cap limit"""
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# fetch current
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original = process_param(self.d, PARAM_GET_PWR_CAP, self.signature)
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# set the fmax
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target = original[0] - 10
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process_param(self.d, PARAM_SET_PWR_CAP, self.signature, target)
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time.sleep(SET_DELAY)
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new = process_param(self.d, PARAM_GET_PWR_CAP, self.signature)
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self.assertEqual(new[0], target)
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# revert back to current
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process_param(self.d, PARAM_SET_PWR_CAP, self.signature, original[0])
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time.sleep(SET_DELAY)
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cur = process_param(self.d, PARAM_GET_PWR_CAP, self.signature)
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self.assertEqual(cur[0], original[0])
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def test_set_3d_graphics_mode(self) -> None:
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"""set/get 3d graphics mode"""
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# these aren't currently implemented but may be some day
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# they are *expected* to fail
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with self.assertRaises(OSError) as error:
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process_param(self.d, PARAM_GET_GFX_MODE, self.signature)
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self.assertEqual(error.exception.errno, 2)
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time.sleep(SET_DELAY)
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with self.assertRaises(OSError) as error:
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process_param(self.d, PARAM_SET_GFX_MODE, self.signature, 1)
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self.assertEqual(error.exception.errno, 2)
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if __name__ == "__main__":
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unittest.main()
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