openstack/ironic-python-agent
Code Issues Proposed changes
da95c4a891
ironic-python-agent/ironic_python_agent/tests/unit/test_hardware.py
ChangBo Guo(gcb) 30e0da15ea Remove usage of parameter enforce_type 
Oslo.config deprecated parameter enforce_type and change its
default value to True in Ifa552de0a994e40388cbc9f7dbaa55700ca276b0.
Remove the usage of it to avoid DeprecationWarning: "Using the
'enforce_type' argument is deprecated in version '4.0' and will be
removed in version '5.0': The argument enforce_type has changed its
default value to True and then will be removed completely."

Change-Id: I0f0fb540c43edde64e489915c5199da40a0da9c1
Related--Bug: #1517839
2017-06-14 13:47:29 +08:00

1805 lines
79 KiB
Python
Raw Blame History

# Copyright 2013 Rackspace, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import binascii
import os
import time
from ironic_lib import disk_utils
import mock
import netifaces
from oslo_concurrency import processutils
from oslo_config import cfg
from oslo_utils import units
import pyudev
from stevedore import extension
from ironic_python_agent import errors
from ironic_python_agent import hardware
from ironic_python_agent.tests.unit import base
from ironic_python_agent import utils
CONF = cfg.CONF
CONF.import_opt('disk_wait_attempts', 'ironic_python_agent.config')
CONF.import_opt('disk_wait_delay', 'ironic_python_agent.config')
HDPARM_INFO_TEMPLATE = (
'/dev/sda:\n'
'\n'
'ATA device, with non-removable media\n'
'\tModel Number: 7 PIN SATA FDM\n'
'\tSerial Number: 20131210000000000023\n'
'\tFirmware Revision: SVN406\n'
'\tTransport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, '
'SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0\n'
'Standards: \n'
'\tSupported: 9 8 7 6 5\n'
'\tLikely used: 9\n'
'Configuration: \n'
'\tLogical\t\tmax\tcurrent\n'
'\tcylinders\t16383\t16383\n'
'\theads\t\t16\t16\n'
'\tsectors/track\t63\t63\n'
'\t--\n'
'\tCHS current addressable sectors: 16514064\n'
'\tLBA user addressable sectors: 60579792\n'
'\tLBA48 user addressable sectors: 60579792\n'
'\tLogical Sector size: 512 bytes\n'
'\tPhysical Sector size: 512 bytes\n'
'\tLogical Sector-0 offset: 0 bytes\n'
'\tdevice size with M = 1024*1024: 29579 MBytes\n'
'\tdevice size with M = 1000*1000: 31016 MBytes (31 GB)\n'
'\tcache/buffer size = unknown\n'
'\tForm Factor: 2.5 inch\n'
'\tNominal Media Rotation Rate: Solid State Device\n'
'Capabilities: \n'
'\tLBA, IORDY(can be disabled)\n'
'\tQueue depth: 32\n'
'\tStandby timer values: spec\'d by Standard, no device specific '
'minimum\n'
'\tR/W multiple sector transfer: Max = 1\tCurrent = 1\n'
'\tDMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5\n'
'\t Cycle time: min=120ns recommended=120ns\n'
'\tPIO: pio0 pio1 pio2 pio3 pio4\n'
'\t Cycle time: no flow control=120ns IORDY flow '
'control=120ns\n'
'Commands/features: \n'
'\tEnabled\tSupported:\n'
'\t *\tSMART feature set\n'
'\t \tSecurity Mode feature set\n'
'\t *\tPower Management feature set\n'
'\t *\tWrite cache\n'
'\t *\tLook-ahead\n'
'\t *\tHost Protected Area feature set\n'
'\t *\tWRITE_BUFFER command\n'
'\t *\tREAD_BUFFER command\n'
'\t *\tNOP cmd\n'
'\t \tSET_MAX security extension\n'
'\t *\t48-bit Address feature set\n'
'\t *\tDevice Configuration Overlay feature set\n'
'\t *\tMandatory FLUSH_CACHE\n'
'\t *\tFLUSH_CACHE_EXT\n'
'\t *\tWRITE_{DMA|MULTIPLE}_FUA_EXT\n'
'\t *\tWRITE_UNCORRECTABLE_EXT command\n'
'\t *\tGen1 signaling speed (1.5Gb/s)\n'
'\t *\tGen2 signaling speed (3.0Gb/s)\n'
'\t *\tGen3 signaling speed (6.0Gb/s)\n'
'\t *\tNative Command Queueing (NCQ)\n'
'\t *\tHost-initiated interface power management\n'
'\t *\tPhy event counters\n'
'\t *\tDMA Setup Auto-Activate optimization\n'
'\t \tDevice-initiated interface power management\n'
'\t *\tSoftware settings preservation\n'
'\t \tunknown 78[8]\n'
'\t *\tSMART Command Transport (SCT) feature set\n'
'\t *\tSCT Error Recovery Control (AC3)\n'
'\t *\tSCT Features Control (AC4)\n'
'\t *\tSCT Data Tables (AC5)\n'
'\t *\tData Set Management TRIM supported (limit 2 blocks)\n'
'Security: \n'
'\tMaster password revision code = 65534\n'
'\t%(supported)s\n'
'\t%(enabled)s\n'
'\tnot\tlocked\n'
'\t%(frozen)s\n'
'\tnot\texpired: security count\n'
'\t%(enhanced_erase)s\n'
'\t24min for SECURITY ERASE UNIT. 24min for ENHANCED SECURITY '
'ERASE UNIT.\n'
'Checksum: correct\n'
) # noqa
# NOTE(jroll) noqa here is to dodge E131 (indent rules). Since this is a
# massive multi-line string (with specific whitespace formatting), it's easier
# for a human to parse it with indentations on line continuations. The other
# option would be to ignore the 79-character limit here. Ew.
BLK_DEVICE_TEMPLATE = (
'KNAME="sda" MODEL="TinyUSB Drive" SIZE="3116853504" '
'ROTA="0" TYPE="disk" SERIAL="123"\n'
'KNAME="sdb" MODEL="Fastable SD131 7" SIZE="10737418240" '
'ROTA="0" TYPE="disk"\n'
'KNAME="sdc" MODEL="NWD-BLP4-1600 " SIZE="1765517033472" '
' ROTA="0" TYPE="disk"\n'
'KNAME="sdd" MODEL="NWD-BLP4-1600 " SIZE="1765517033472" '
' ROTA="0" TYPE="disk"\n'
'KNAME="loop0" MODEL="" SIZE="109109248" ROTA="1" TYPE="loop"'
)
# NOTE(pas-ha) largest device is 1 byte smaller than 4GiB
BLK_DEVICE_TEMPLATE_SMALL = (
'KNAME="sda" MODEL="TinyUSB Drive" SIZE="3116853504" '
'ROTA="0" TYPE="disk"\n'
'KNAME="sdb" MODEL="AlmostBigEnough Drive" SIZE="4294967295" '
'ROTA="0" TYPE="disk"'
)
BLK_DEVICE_TEMPLATE_SMALL_DEVICES = [
hardware.BlockDevice(name='/dev/sda', model='TinyUSB Drive',
size=3116853504, rotational=False,
vendor="FooTastic"),
hardware.BlockDevice(name='/dev/sdb', model='AlmostBigEnough Drive',
size=4294967295, rotational=False,
vendor="FooTastic"),
]
SHRED_OUTPUT_0_ITERATIONS_ZERO_FALSE = ()
SHRED_OUTPUT_1_ITERATION_ZERO_TRUE = (
'shred: /dev/sda: pass 1/2 (random)...\n'
'shred: /dev/sda: pass 1/2 (random)...4.9GiB/29GiB 17%\n'
'shred: /dev/sda: pass 1/2 (random)...15GiB/29GiB 51%\n'
'shred: /dev/sda: pass 1/2 (random)...20GiB/29GiB 69%\n'
'shred: /dev/sda: pass 1/2 (random)...29GiB/29GiB 100%\n'
'shred: /dev/sda: pass 2/2 (000000)...\n'
'shred: /dev/sda: pass 2/2 (000000)...4.9GiB/29GiB 17%\n'
'shred: /dev/sda: pass 2/2 (000000)...15GiB/29GiB 51%\n'
'shred: /dev/sda: pass 2/2 (000000)...20GiB/29GiB 69%\n'
'shred: /dev/sda: pass 2/2 (000000)...29GiB/29GiB 100%\n'
)
SHRED_OUTPUT_2_ITERATIONS_ZERO_FALSE = (
'shred: /dev/sda: pass 1/2 (random)...\n'
'shred: /dev/sda: pass 1/2 (random)...4.9GiB/29GiB 17%\n'
'shred: /dev/sda: pass 1/2 (random)...15GiB/29GiB 51%\n'
'shred: /dev/sda: pass 1/2 (random)...20GiB/29GiB 69%\n'
'shred: /dev/sda: pass 1/2 (random)...29GiB/29GiB 100%\n'
'shred: /dev/sda: pass 2/2 (random)...\n'
'shred: /dev/sda: pass 2/2 (random)...4.9GiB/29GiB 17%\n'
'shred: /dev/sda: pass 2/2 (random)...15GiB/29GiB 51%\n'
'shred: /dev/sda: pass 2/2 (random)...20GiB/29GiB 69%\n'
'shred: /dev/sda: pass 2/2 (random)...29GiB/29GiB 100%\n'
)
LSCPU_OUTPUT = """
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 45
Model name: Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
Stepping: 7
CPU MHz: 1290.000
CPU max MHz: 2400.0000
CPU min MHz: 1200.0000
BogoMIPS: 4800.06
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 10240K
NUMA node0 CPU(s): 0-3
"""
LSCPU_OUTPUT_NO_MAX_MHZ = """
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 12
On-line CPU(s) list: 0-11
Thread(s) per core: 2
Core(s) per socket: 6
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 63
Model name: Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz
Stepping: 2
CPU MHz: 1794.433
BogoMIPS: 6983.57
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 15360K
NUMA node0 CPU(s): 0-11
"""
# NOTE(dtanstur): flags list stripped down for sanity reasons
CPUINFO_FLAGS_OUTPUT = """
flags : fpu vme de pse
"""
DMIDECODE_MEMORY_OUTPUT = ("""
Foo
Size: 2048 MB
Size: 2 GB
Installed Size: Not Installed
Enabled Size: Not Installed
Size: No Module Installed
""", "")
class FakeHardwareManager(hardware.GenericHardwareManager):
def __init__(self, hardware_support):
self._hardware_support = hardware_support
def evaluate_hardware_support(self):
return self._hardware_support
class TestHardwareManagerLoading(base.IronicAgentTest):
def setUp(self):
super(TestHardwareManagerLoading, self).setUp()
# In order to use ExtensionManager.make_test_instance() without
# creating a new only-for-test codepath, we instantiate the test
# instance outside of the test case in setUp, where we can access
# make_test_instance() before it gets mocked. Inside of the test case
# we set this as the return value of the mocked constructor, so we can
# verify that the constructor is called correctly while still using a
# more realistic ExtensionManager
fake_ep = mock.Mock()
fake_ep.module_name = 'fake'
fake_ep.attrs = ['fake attrs']
ext1 = extension.Extension(
'fake_generic0', fake_ep, None,
FakeHardwareManager(hardware.HardwareSupport.GENERIC))
ext2 = extension.Extension(
'fake_mainline0', fake_ep, None,
FakeHardwareManager(hardware.HardwareSupport.MAINLINE))
ext3 = extension.Extension(
'fake_generic1', fake_ep, None,
FakeHardwareManager(hardware.HardwareSupport.GENERIC))
self.correct_hw_manager = ext2.obj
self.fake_ext_mgr = extension.ExtensionManager.make_test_instance([
ext1, ext2, ext3
])
@mock.patch.object(hardware, '_udev_settle', lambda *_: None)
class TestGenericHardwareManager(base.IronicAgentTest):
def setUp(self):
super(TestGenericHardwareManager, self).setUp()
self.hardware = hardware.GenericHardwareManager()
self.node = {'uuid': 'dda135fb-732d-4742-8e72-df8f3199d244',
'driver_internal_info': {}}
CONF.clear_override('disk_wait_attempts')
CONF.clear_override('disk_wait_delay')
def test_get_clean_steps(self):
expected_clean_steps = [
{
'step': 'erase_devices',
'priority': 10,
'interface': 'deploy',
'reboot_requested': False,
'abortable': True
},
{
'step': 'erase_devices_metadata',
'priority': 99,
'interface': 'deploy',
'reboot_requested': False,
'abortable': True
}
]
clean_steps = self.hardware.get_clean_steps(self.node, [])
self.assertEqual(expected_clean_steps, clean_steps)
@mock.patch('binascii.hexlify', autospec=True)
@mock.patch('ironic_python_agent.netutils.get_lldp_info', autospec=True)
def test_collect_lldp_data(self, mock_lldp_info, mock_hexlify):
if_names = ['eth0', 'lo']
mock_lldp_info.return_value = {if_names[0]: [
(0, b''),
(1, b'foo\x01'),
(2, b'\x02bar')],
}
mock_hexlify.side_effect = [
b'',
b'666f6f01',
b'02626172'
]
expected_lldp_data = {
'eth0': [
(0, ''),
(1, '666f6f01'),
(2, '02626172')],
}
result = self.hardware.collect_lldp_data(if_names)
self.assertEqual(True, if_names[0] in result)
self.assertEqual(expected_lldp_data, result)
@mock.patch('ironic_python_agent.netutils.get_lldp_info', autospec=True)
def test_collect_lldp_data_netutils_exception(self, mock_lldp_info):
if_names = ['eth0', 'lo']
mock_lldp_info.side_effect = Exception('fake error')
result = self.hardware.collect_lldp_data(if_names)
expected_lldp_data = {}
self.assertEqual(expected_lldp_data, result)
@mock.patch.object(hardware, 'LOG', autospec=True)
@mock.patch('binascii.hexlify', autospec=True)
@mock.patch('ironic_python_agent.netutils.get_lldp_info', autospec=True)
def test_collect_lldp_data_decode_exception(self, mock_lldp_info,
mock_hexlify, mock_log):
if_names = ['eth0', 'lo']
mock_lldp_info.return_value = {if_names[0]: [
(0, b''),
(1, b'foo\x01'),
(2, b'\x02bar')],
}
mock_hexlify.side_effect = [
b'',
b'666f6f01',
binascii.Error('fake_error')
]
expected_lldp_data = {
'eth0': [
(0, ''),
(1, '666f6f01')],
}
result = self.hardware.collect_lldp_data(if_names)
mock_log.warning.assert_called_once()
self.assertEqual(True, if_names[0] in result)
self.assertEqual(expected_lldp_data, result)
@mock.patch('ironic_python_agent.hardware._get_managers', autospec=True)
@mock.patch('netifaces.ifaddresses', autospec=True)
@mock.patch('os.listdir', autospec=True)
@mock.patch('os.path.exists', autospec=True)
@mock.patch('six.moves.builtins.open', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_network_interfaces(self,
mocked_execute,
mocked_open,
mocked_exists,
mocked_listdir,
mocked_ifaddresses,
mocked_get_managers):
mocked_get_managers.return_value = [hardware.GenericHardwareManager()]
mocked_listdir.return_value = ['lo', 'eth0']
mocked_exists.side_effect = [False, True]
mocked_open.return_value.__enter__ = lambda s: s
mocked_open.return_value.__exit__ = mock.Mock()
read_mock = mocked_open.return_value.read
read_mock.side_effect = ['00:0c:29:8c:11:b1\n', '1']
mocked_ifaddresses.return_value = {
netifaces.AF_INET: [{'addr': '192.168.1.2'}]
}
mocked_execute.return_value = ('em0\n', '')
interfaces = self.hardware.list_network_interfaces()
self.assertEqual(1, len(interfaces))
self.assertEqual('eth0', interfaces[0].name)
self.assertEqual('00:0c:29:8c:11:b1', interfaces[0].mac_address)
self.assertEqual('192.168.1.2', interfaces[0].ipv4_address)
self.assertIsNone(interfaces[0].lldp)
self.assertTrue(interfaces[0].has_carrier)
self.assertEqual('em0', interfaces[0].biosdevname)
@mock.patch('ironic_python_agent.hardware._get_managers', autospec=True)
@mock.patch('netifaces.ifaddresses', autospec=True)
@mock.patch('os.listdir', autospec=True)
@mock.patch('os.path.exists', autospec=True)
@mock.patch('six.moves.builtins.open', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_network_interfaces_with_biosdevname(self,
mocked_execute,
mocked_open,
mocked_exists,
mocked_listdir,
mocked_ifaddresses,
mocked_get_managers):
mocked_get_managers.return_value = [hardware.GenericHardwareManager()]
mocked_listdir.return_value = ['lo', 'eth0']
mocked_exists.side_effect = [False, True]
mocked_open.return_value.__enter__ = lambda s: s
mocked_open.return_value.__exit__ = mock.Mock()
read_mock = mocked_open.return_value.read
read_mock.side_effect = ['00:0c:29:8c:11:b1\n', '1']
mocked_ifaddresses.return_value = {
netifaces.AF_INET: [{'addr': '192.168.1.2'}]
}
mocked_execute.return_value = ('em0\n', '')
interfaces = self.hardware.list_network_interfaces()
self.assertEqual(1, len(interfaces))
self.assertEqual('eth0', interfaces[0].name)
self.assertEqual('00:0c:29:8c:11:b1', interfaces[0].mac_address)
self.assertEqual('192.168.1.2', interfaces[0].ipv4_address)
self.assertIsNone(interfaces[0].lldp)
self.assertTrue(interfaces[0].has_carrier)
self.assertEqual('em0', interfaces[0].biosdevname)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_bios_given_nic_name_ok(self, mock_execute):
interface_name = 'eth0'
mock_execute.return_value = ('em0\n', '')
result = self.hardware.get_bios_given_nic_name(interface_name)
self.assertEqual('em0', result)
mock_execute.assert_called_once_with('biosdevname', '-i',
interface_name)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_bios_given_nic_name_oserror(self, mock_execute):
interface_name = 'eth0'
mock_execute.side_effect = OSError()
result = self.hardware.get_bios_given_nic_name(interface_name)
self.assertIsNone(result)
mock_execute.assert_called_once_with('biosdevname', '-i',
interface_name)
@mock.patch.object(utils, 'execute', autospec=True)
@mock.patch.object(hardware, 'LOG', autospec=True)
def test_get_bios_given_nic_name_process_exec_err4(self, mock_log,
mock_execute):
interface_name = 'eth0'
mock_execute.side_effect = [
processutils.ProcessExecutionError(exit_code=4)]
result = self.hardware.get_bios_given_nic_name(interface_name)
mock_log.info.assert_called_once_with(
'The system is a virtual machine, so biosdevname utility does '
'not provide names for virtual NICs.')
self.assertIsNone(result)
mock_execute.assert_called_once_with('biosdevname', '-i',
interface_name)
@mock.patch.object(utils, 'execute', autospec=True)
@mock.patch.object(hardware, 'LOG', autospec=True)
def test_get_bios_given_nic_name_process_exec_err3(self, mock_log,
mock_execute):
interface_name = 'eth0'
mock_execute.side_effect = [
processutils.ProcessExecutionError(exit_code=3)]
result = self.hardware.get_bios_given_nic_name(interface_name)
mock_log.warning.assert_called_once_with(
'Biosdevname returned exit code %s', 3)
self.assertIsNone(result)
mock_execute.assert_called_once_with('biosdevname', '-i',
interface_name)
@mock.patch('ironic_python_agent.hardware._get_managers', autospec=True)
@mock.patch('ironic_python_agent.netutils.get_lldp_info', autospec=True)
@mock.patch('netifaces.ifaddresses', autospec=True)
@mock.patch('os.listdir', autospec=True)
@mock.patch('os.path.exists', autospec=True)
@mock.patch('six.moves.builtins.open', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_network_interfaces_with_lldp(self,
mocked_execute,
mocked_open,
mocked_exists,
mocked_listdir,
mocked_ifaddresses,
mocked_lldp_info,
mocked_get_managers):
mocked_get_managers.return_value = [hardware.GenericHardwareManager()]
CONF.set_override('collect_lldp', True)
mocked_listdir.return_value = ['lo', 'eth0']
mocked_exists.side_effect = [False, True]
mocked_open.return_value.__enter__ = lambda s: s
mocked_open.return_value.__exit__ = mock.Mock()
read_mock = mocked_open.return_value.read
read_mock.side_effect = ['00:0c:29:8c:11:b1\n', '1']
mocked_ifaddresses.return_value = {
netifaces.AF_INET: [{'addr': '192.168.1.2'}]
}
mocked_lldp_info.return_value = {'eth0': [
(0, b''),
(1, b'\x04\x88Z\x92\xecTY'),
(2, b'\x05Ethernet1/18'),
(3, b'\x00x')]
}
mocked_execute.return_value = ('em0\n', '')
interfaces = self.hardware.list_network_interfaces()
self.assertEqual(1, len(interfaces))
self.assertEqual('eth0', interfaces[0].name)
self.assertEqual('00:0c:29:8c:11:b1', interfaces[0].mac_address)
self.assertEqual('192.168.1.2', interfaces[0].ipv4_address)
expected_lldp_info = [
(0, ''),
(1, '04885a92ec5459'),
(2, '0545746865726e6574312f3138'),
(3, '0078'),
]
self.assertEqual(expected_lldp_info, interfaces[0].lldp)
self.assertTrue(interfaces[0].has_carrier)
self.assertEqual('em0', interfaces[0].biosdevname)
@mock.patch('ironic_python_agent.hardware._get_managers', autospec=True)
@mock.patch('ironic_python_agent.netutils.get_lldp_info', autospec=True)
@mock.patch('netifaces.ifaddresses', autospec=True)
@mock.patch('os.listdir', autospec=True)
@mock.patch('os.path.exists', autospec=True)
@mock.patch('six.moves.builtins.open', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_network_interfaces_with_lldp_error(
self, mocked_execute, mocked_open, mocked_exists, mocked_listdir,
mocked_ifaddresses, mocked_lldp_info, mocked_get_managers):
mocked_get_managers.return_value = [hardware.GenericHardwareManager()]
CONF.set_override('collect_lldp', True)
mocked_listdir.return_value = ['lo', 'eth0']
mocked_exists.side_effect = [False, True]
mocked_open.return_value.__enter__ = lambda s: s
mocked_open.return_value.__exit__ = mock.Mock()
read_mock = mocked_open.return_value.read
read_mock.side_effect = ['00:0c:29:8c:11:b1\n', '1']
mocked_ifaddresses.return_value = {
netifaces.AF_INET: [{'addr': '192.168.1.2'}]
}
mocked_lldp_info.side_effect = Exception('Boom!')
mocked_execute.return_value = ('em0\n', '')
interfaces = self.hardware.list_network_interfaces()
self.assertEqual(1, len(interfaces))
self.assertEqual('eth0', interfaces[0].name)
self.assertEqual('00:0c:29:8c:11:b1', interfaces[0].mac_address)
self.assertEqual('192.168.1.2', interfaces[0].ipv4_address)
self.assertIsNone(interfaces[0].lldp)
self.assertTrue(interfaces[0].has_carrier)
self.assertEqual('em0', interfaces[0].biosdevname)
@mock.patch('ironic_python_agent.hardware._get_managers', autospec=True)
@mock.patch('netifaces.ifaddresses', autospec=True)
@mock.patch('os.listdir', autospec=True)
@mock.patch('os.path.exists', autospec=True)
@mock.patch('six.moves.builtins.open', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_network_interfaces_no_carrier(self,
mocked_execute,
mocked_open,
mocked_exists,
mocked_listdir,
mocked_ifaddresses,
mocked_get_managers):
mocked_get_managers.return_value = [hardware.GenericHardwareManager()]
mocked_listdir.return_value = ['lo', 'eth0']
mocked_exists.side_effect = [False, True]
mocked_open.return_value.__enter__ = lambda s: s
mocked_open.return_value.__exit__ = mock.Mock()
read_mock = mocked_open.return_value.read
read_mock.side_effect = ['00:0c:29:8c:11:b1\n', OSError('boom')]
mocked_ifaddresses.return_value = {
netifaces.AF_INET: [{'addr': '192.168.1.2'}]
}
mocked_execute.return_value = ('em0\n', '')
interfaces = self.hardware.list_network_interfaces()
self.assertEqual(1, len(interfaces))
self.assertEqual('eth0', interfaces[0].name)
self.assertEqual('00:0c:29:8c:11:b1', interfaces[0].mac_address)
self.assertEqual('192.168.1.2', interfaces[0].ipv4_address)
self.assertFalse(interfaces[0].has_carrier)
self.assertIsNone(interfaces[0].vendor)
self.assertEqual('em0', interfaces[0].biosdevname)
@mock.patch('ironic_python_agent.hardware._get_managers', autospec=True)
@mock.patch('netifaces.ifaddresses', autospec=True)
@mock.patch('os.listdir', autospec=True)
@mock.patch('os.path.exists', autospec=True)
@mock.patch('six.moves.builtins.open', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_network_interfaces_with_vendor_info(self,
mocked_execute,
mocked_open,
mocked_exists,
mocked_listdir,
mocked_ifaddresses,
mocked_get_managers):
mocked_get_managers.return_value = [hardware.GenericHardwareManager()]
mocked_listdir.return_value = ['lo', 'eth0']
mocked_exists.side_effect = [False, True]
mocked_open.return_value.__enter__ = lambda s: s
mocked_open.return_value.__exit__ = mock.Mock()
read_mock = mocked_open.return_value.read
mac = '00:0c:29:8c:11:b1'
read_mock.side_effect = [mac + '\n', '1', '0x15b3\n', '0x1014\n']
mocked_ifaddresses.return_value = {
netifaces.AF_INET: [{'addr': '192.168.1.2'}]
}
mocked_execute.return_value = ('em0\n', '')
interfaces = self.hardware.list_network_interfaces()
self.assertEqual(1, len(interfaces))
self.assertEqual('eth0', interfaces[0].name)
self.assertEqual(mac, interfaces[0].mac_address)
self.assertEqual('192.168.1.2', interfaces[0].ipv4_address)
self.assertTrue(interfaces[0].has_carrier)
self.assertEqual('0x15b3', interfaces[0].vendor)
self.assertEqual('0x1014', interfaces[0].product)
self.assertEqual('em0', interfaces[0].biosdevname)
@mock.patch.object(hardware, 'get_cached_node', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_os_install_device(self, mocked_execute, mock_cached_node):
mock_cached_node.return_value = None
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE, '')
self.assertEqual('/dev/sdb', self.hardware.get_os_install_device())
mocked_execute.assert_called_once_with(
'lsblk', '-Pbdi', '-oKNAME,MODEL,SIZE,ROTA,TYPE',
check_exit_code=[0])
mock_cached_node.assert_called_once_with()
@mock.patch.object(hardware, 'get_cached_node', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_os_install_device_fails(self, mocked_execute,
mock_cached_node):
"""Fail to find device >=4GB w/o root device hints"""
mock_cached_node.return_value = None
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE_SMALL, '')
ex = self.assertRaises(errors.DeviceNotFound,
self.hardware.get_os_install_device)
mocked_execute.assert_called_once_with(
'lsblk', '-Pbdi', '-oKNAME,MODEL,SIZE,ROTA,TYPE',
check_exit_code=[0])
self.assertIn(str(4 * units.Gi), ex.details)
mock_cached_node.assert_called_once_with()
@mock.patch.object(hardware, 'list_all_block_devices', autospec=True)
@mock.patch.object(hardware, 'get_cached_node', autospec=True)
def _get_os_install_device_root_device_hints(self, hints, expected_device,
mock_cached_node, mock_dev):
mock_cached_node.return_value = {'properties': {'root_device': hints}}
model = 'fastable sd131 7'
mock_dev.return_value = [
hardware.BlockDevice(name='/dev/sda',
model='TinyUSB Drive',
size=3116853504,
rotational=False,
vendor='Super Vendor',
wwn='wwn0',
wwn_with_extension='wwn0ven0',
wwn_vendor_extension='ven0',
serial='serial0'),
hardware.BlockDevice(name='/dev/sdb',
model=model,
size=10737418240,
rotational=True,
vendor='fake-vendor',
wwn='fake-wwn',
wwn_with_extension='fake-wwnven0',
wwn_vendor_extension='ven0',
serial='fake-serial'),
]
self.assertEqual(expected_device,
self.hardware.get_os_install_device())
mock_cached_node.assert_called_once_with()
mock_dev.assert_called_once_with()
def test_get_os_install_device_root_device_hints_model(self):
self._get_os_install_device_root_device_hints(
{'model': 'fastable sd131 7'}, '/dev/sdb')
def test_get_os_install_device_root_device_hints_wwn(self):
self._get_os_install_device_root_device_hints(
{'wwn': 'wwn0'}, '/dev/sda')
def test_get_os_install_device_root_device_hints_serial(self):
self._get_os_install_device_root_device_hints(
{'serial': 'serial0'}, '/dev/sda')
def test_get_os_install_device_root_device_hints_size(self):
self._get_os_install_device_root_device_hints(
{'size': 10}, '/dev/sdb')
def test_get_os_install_device_root_device_hints_size_str(self):
self._get_os_install_device_root_device_hints(
{'size': '10'}, '/dev/sdb')
def test_get_os_install_device_root_device_hints_size_not_int(self):
self.assertRaises(errors.DeviceNotFound,
self._get_os_install_device_root_device_hints,
{'size': 'not-int'}, '/dev/sdb')
def test_get_os_install_device_root_device_hints_vendor(self):
self._get_os_install_device_root_device_hints(
{'vendor': 'fake-vendor'}, '/dev/sdb')
def test_get_os_install_device_root_device_hints_name(self):
self._get_os_install_device_root_device_hints(
{'name': '/dev/sdb'}, '/dev/sdb')
def test_get_os_install_device_root_device_hints_rotational(self):
for value in (True, 'true', 'on', 'y', 'yes'):
self._get_os_install_device_root_device_hints(
{'rotational': value}, '/dev/sdb')
@mock.patch.object(hardware, 'list_all_block_devices', autospec=True)
@mock.patch.object(hardware, 'get_cached_node', autospec=True)
def test_get_os_install_device_root_device_hints_no_device_found(
self, mock_cached_node, mock_dev):
model = 'fastable sd131 7'
mock_cached_node.return_value = {
'properties': {
'root_device': {
'model': model,
'wwn': 'fake-wwn',
'serial': 'fake-serial',
'vendor': 'fake-vendor',
'size': 10}}}
# Model is different here
mock_dev.return_value = [
hardware.BlockDevice(name='/dev/sda',
model='TinyUSB Drive',
size=3116853504,
rotational=False,
vendor='Super Vendor',
wwn='wwn0',
serial='serial0'),
hardware.BlockDevice(name='/dev/sdb',
model='Another Model',
size=10737418240,
rotational=False,
vendor='fake-vendor',
wwn='fake-wwn',
serial='fake-serial'),
]
self.assertRaises(errors.DeviceNotFound,
self.hardware.get_os_install_device)
mock_cached_node.assert_called_once_with()
mock_dev.assert_called_once_with()
def test__get_device_info(self):
fileobj = mock.mock_open(read_data='fake-vendor')
with mock.patch(
'six.moves.builtins.open', fileobj, create=True) as mock_open:
vendor = hardware._get_device_info(
'/dev/sdfake', 'block', 'vendor')
mock_open.assert_called_once_with(
'/sys/class/block/sdfake/device/vendor', 'r')
self.assertEqual('fake-vendor', vendor)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_cpus(self, mocked_execute):
mocked_execute.side_effect = [
(LSCPU_OUTPUT, ''),
(CPUINFO_FLAGS_OUTPUT, '')
]
cpus = self.hardware.get_cpus()
self.assertEqual('Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz',
cpus.model_name)
self.assertEqual('2400.0000', cpus.frequency)
self.assertEqual(4, cpus.count)
self.assertEqual('x86_64', cpus.architecture)
self.assertEqual(['fpu', 'vme', 'de', 'pse'], cpus.flags)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_cpus2(self, mocked_execute):
mocked_execute.side_effect = [
(LSCPU_OUTPUT_NO_MAX_MHZ, ''),
(CPUINFO_FLAGS_OUTPUT, '')
]
cpus = self.hardware.get_cpus()
self.assertEqual('Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz',
cpus.model_name)
self.assertEqual('1794.433', cpus.frequency)
self.assertEqual(12, cpus.count)
self.assertEqual('x86_64', cpus.architecture)
self.assertEqual(['fpu', 'vme', 'de', 'pse'], cpus.flags)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_cpus_no_flags(self, mocked_execute):
mocked_execute.side_effect = [
(LSCPU_OUTPUT, ''),
processutils.ProcessExecutionError()
]
cpus = self.hardware.get_cpus()
self.assertEqual('Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz',
cpus.model_name)
self.assertEqual('2400.0000', cpus.frequency)
self.assertEqual(4, cpus.count)
self.assertEqual('x86_64', cpus.architecture)
self.assertEqual([], cpus.flags)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_cpus_illegal_flags(self, mocked_execute):
mocked_execute.side_effect = [
(LSCPU_OUTPUT, ''),
('I am not a flag', '')
]
cpus = self.hardware.get_cpus()
self.assertEqual('Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz',
cpus.model_name)
self.assertEqual('2400.0000', cpus.frequency)
self.assertEqual(4, cpus.count)
self.assertEqual('x86_64', cpus.architecture)
self.assertEqual([], cpus.flags)
@mock.patch('psutil.virtual_memory', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_memory_psutil(self, mocked_execute, mocked_psutil):
mocked_psutil.return_value.total = 3952 * 1024 * 1024
mocked_execute.return_value = DMIDECODE_MEMORY_OUTPUT
mem = self.hardware.get_memory()
self.assertEqual(3952 * 1024 * 1024, mem.total)
self.assertEqual(4096, mem.physical_mb)
@mock.patch('psutil.virtual_memory', autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_memory_psutil_exception(self, mocked_execute, mocked_psutil):
mocked_execute.return_value = DMIDECODE_MEMORY_OUTPUT
mocked_psutil.side_effect = AttributeError()
mem = self.hardware.get_memory()
self.assertIsNone(mem.total)
self.assertEqual(4096, mem.physical_mb)
def test_list_hardware_info(self):
self.hardware.list_network_interfaces = mock.Mock()
self.hardware.list_network_interfaces.return_value = [
hardware.NetworkInterface('eth0', '00:0c:29:8c:11:b1'),
hardware.NetworkInterface('eth1', '00:0c:29:8c:11:b2'),
]
self.hardware.get_cpus = mock.Mock()
self.hardware.get_cpus.return_value = hardware.CPU(
'Awesome CPU x14 9001',
9001,
14,
'x86_64')
self.hardware.get_memory = mock.Mock()
self.hardware.get_memory.return_value = hardware.Memory(1017012)
self.hardware.list_block_devices = mock.Mock()
self.hardware.list_block_devices.return_value = [
hardware.BlockDevice('/dev/sdj', 'big', 1073741824, True),
hardware.BlockDevice('/dev/hdaa', 'small', 65535, False),
]
self.hardware.get_boot_info = mock.Mock()
self.hardware.get_boot_info.return_value = hardware.BootInfo(
current_boot_mode='bios', pxe_interface='boot:if')
self.hardware.get_bmc_address = mock.Mock()
self.hardware.get_system_vendor_info = mock.Mock()
hardware_info = self.hardware.list_hardware_info()
self.assertEqual(self.hardware.get_memory(), hardware_info['memory'])
self.assertEqual(self.hardware.get_cpus(), hardware_info['cpu'])
self.assertEqual(self.hardware.list_block_devices(),
hardware_info['disks'])
self.assertEqual(self.hardware.list_network_interfaces(),
hardware_info['interfaces'])
self.assertEqual(self.hardware.get_boot_info(),
hardware_info['boot'])
@mock.patch.object(hardware, 'list_all_block_devices', autospec=True)
def test_list_block_devices(self, list_mock):
device = hardware.BlockDevice('/dev/hdaa', 'small', 65535, False)
list_mock.return_value = [device]
devices = self.hardware.list_block_devices()
self.assertEqual([device], devices)
list_mock.assert_called_once_with()
@mock.patch.object(os, 'listdir', autospec=True)
@mock.patch.object(hardware, '_get_device_info', autospec=True)
@mock.patch.object(pyudev.Device, 'from_device_file', autospec=False)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_all_block_device(self, mocked_execute, mocked_udev,
mocked_dev_vendor, mock_listdir):
mock_listdir.return_value = ['1:0:0:0']
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE, '')
mocked_udev.side_effect = pyudev.DeviceNotFoundError()
mocked_dev_vendor.return_value = 'Super Vendor'
devices = hardware.list_all_block_devices()
expected_devices = [
hardware.BlockDevice(name='/dev/sda',
model='TinyUSB Drive',
size=3116853504,
rotational=False,
vendor='Super Vendor',
hctl='1:0:0:0'),
hardware.BlockDevice(name='/dev/sdb',
model='Fastable SD131 7',
size=10737418240,
rotational=False,
vendor='Super Vendor',
hctl='1:0:0:0'),
hardware.BlockDevice(name='/dev/sdc',
model='NWD-BLP4-1600',
size=1765517033472,
rotational=False,
vendor='Super Vendor',
hctl='1:0:0:0'),
hardware.BlockDevice(name='/dev/sdd',
model='NWD-BLP4-1600',
size=1765517033472,
rotational=False,
vendor='Super Vendor',
hctl='1:0:0:0'),
]
self.assertEqual(4, len(devices))
for expected, device in zip(expected_devices, devices):
# Compare all attrs of the objects
for attr in ['name', 'model', 'size', 'rotational',
'wwn', 'vendor', 'serial', 'hctl']:
self.assertEqual(getattr(expected, attr),
getattr(device, attr))
expected_calls = [mock.call('/sys/block/%s/device/scsi_device' % dev)
for dev in ('sda', 'sdb', 'sdc', 'sdd')]
mock_listdir.assert_has_calls(expected_calls)
@mock.patch.object(hardware, '_get_device_info', autospec=True)
@mock.patch.object(pyudev.Device, 'from_device_file', autospec=False)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_all_block_device_udev_17(self, mocked_execute, mocked_udev,
mocked_dev_vendor):
# test compatibility with pyudev < 0.18
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE, '')
mocked_udev.side_effect = OSError()
mocked_dev_vendor.return_value = 'Super Vendor'
devices = hardware.list_all_block_devices()
self.assertEqual(4, len(devices))
@mock.patch.object(os, 'listdir', autospec=True)
@mock.patch.object(hardware, '_get_device_info', autospec=True)
@mock.patch.object(pyudev.Device, 'from_device_file', autospec=False)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_all_block_device_hctl_fail(self, mocked_execute, mocked_udev,
mocked_dev_vendor,
mocked_listdir):
mocked_listdir.side_effect = (OSError, IndexError)
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE_SMALL, '')
mocked_dev_vendor.return_value = 'Super Vendor'
devices = hardware.list_all_block_devices()
self.assertEqual(2, len(devices))
expected_calls = [mock.call('/sys/block/%s/device/scsi_device' % dev)
for dev in ('sda', 'sdb')]
mocked_listdir.assert_has_calls(expected_calls)
@mock.patch.object(os, 'listdir', autospec=True)
@mock.patch.object(hardware, '_get_device_info', autospec=True)
@mock.patch.object(pyudev.Device, 'from_device_file', autospec=False)
@mock.patch.object(utils, 'execute', autospec=True)
def test_list_all_block_device_with_udev(self, mocked_execute, mocked_udev,
mocked_dev_vendor, mock_listdir):
mock_listdir.return_value = ['1:0:0:0']
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE, '')
mocked_udev.side_effect = iter([
{'ID_WWN': 'wwn%d' % i, 'ID_SERIAL_SHORT': 'serial%d' % i,
'ID_WWN_WITH_EXTENSION': 'wwn-ext%d' % i,
'ID_WWN_VENDOR_EXTENSION': 'wwn-vendor-ext%d' % i}
for i in range(4)
])
mocked_dev_vendor.return_value = 'Super Vendor'
devices = hardware.list_all_block_devices()
expected_devices = [
hardware.BlockDevice(name='/dev/sda',
model='TinyUSB Drive',
size=3116853504,
rotational=False,
vendor='Super Vendor',
wwn='wwn0',
wwn_with_extension='wwn-ext0',
wwn_vendor_extension='wwn-vendor-ext0',
serial='serial0',
hctl='1:0:0:0'),
hardware.BlockDevice(name='/dev/sdb',
model='Fastable SD131 7',
size=10737418240,
rotational=False,
vendor='Super Vendor',
wwn='wwn1',
wwn_with_extension='wwn-ext1',
wwn_vendor_extension='wwn-vendor-ext1',
serial='serial1',
hctl='1:0:0:0'),
hardware.BlockDevice(name='/dev/sdc',
model='NWD-BLP4-1600',
size=1765517033472,
rotational=False,
vendor='Super Vendor',
wwn='wwn2',
wwn_with_extension='wwn-ext2',
wwn_vendor_extension='wwn-vendor-ext2',
serial='serial2',
hctl='1:0:0:0'),
hardware.BlockDevice(name='/dev/sdd',
model='NWD-BLP4-1600',
size=1765517033472,
rotational=False,
vendor='Super Vendor',
wwn='wwn3',
wwn_with_extension='wwn-ext3',
wwn_vendor_extension='wwn-vendor-ext3',
serial='serial3',
hctl='1:0:0:0')
]
self.assertEqual(4, len(expected_devices))
for expected, device in zip(expected_devices, devices):
# Compare all attrs of the objects
for attr in ['name', 'model', 'size', 'rotational',
'wwn', 'vendor', 'serial', 'wwn_with_extension',
'wwn_vendor_extension', 'hctl']:
self.assertEqual(getattr(expected, attr),
getattr(device, attr))
expected_calls = [mock.call('/sys/block/%s/device/scsi_device' % dev)
for dev in ('sda', 'sdb', 'sdc', 'sdd')]
mock_listdir.assert_has_calls(expected_calls)
@mock.patch.object(hardware, 'dispatch_to_managers', autospec=True)
def test_erase_devices(self, mocked_dispatch):
mocked_dispatch.return_value = 'erased device'
self.hardware.list_block_devices = mock.Mock()
self.hardware.list_block_devices.return_value = [
hardware.BlockDevice('/dev/sdj', 'big', 1073741824, True),
hardware.BlockDevice('/dev/hdaa', 'small', 65535, False),
]
expected = {'/dev/hdaa': 'erased device', '/dev/sdj': 'erased device'}
result = self.hardware.erase_devices({}, [])
self.assertEqual(expected, result)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_ata_success(self, mocked_execute):
mocked_execute.side_effect = [
(create_hdparm_info(
supported=True, enabled=False, frozen=False,
enhanced_erase=False), ''),
('', ''),
('', ''),
(create_hdparm_info(
supported=True, enabled=False, frozen=False,
enhanced_erase=False), ''),
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
mocked_execute.assert_has_calls([
mock.call('hdparm', '-I', '/dev/sda'),
mock.call('hdparm', '--user-master', 'u', '--security-set-pass',
'NULL', '/dev/sda'),
mock.call('hdparm', '--user-master', 'u', '--security-erase',
'NULL', '/dev/sda'),
mock.call('hdparm', '-I', '/dev/sda'),
])
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_nosecurity_shred(self, mocked_execute):
hdparm_output = HDPARM_INFO_TEMPLATE.split('\nSecurity:')[0]
mocked_execute.side_effect = [
(hdparm_output, ''),
(SHRED_OUTPUT_1_ITERATION_ZERO_TRUE, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
mocked_execute.assert_has_calls([
mock.call('hdparm', '-I', '/dev/sda'),
mock.call('shred', '--force', '--zero', '--verbose',
'--iterations', '1', '/dev/sda')
])
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_notsupported_shred(self, mocked_execute):
hdparm_output = create_hdparm_info(
supported=False, enabled=False, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, ''),
(SHRED_OUTPUT_1_ITERATION_ZERO_TRUE, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
mocked_execute.assert_has_calls([
mock.call('hdparm', '-I', '/dev/sda'),
mock.call('shred', '--force', '--zero', '--verbose',
'--iterations', '1', '/dev/sda')
])
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_shred_uses_internal_info(self, mocked_execute):
hdparm_output = create_hdparm_info(
supported=False, enabled=False, frozen=False, enhanced_erase=False)
info = self.node['driver_internal_info']
info['agent_erase_devices_iterations'] = 2
info['agent_erase_devices_zeroize'] = False
mocked_execute.side_effect = [
(hdparm_output, ''),
(SHRED_OUTPUT_2_ITERATIONS_ZERO_FALSE, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
mocked_execute.assert_has_calls([
mock.call('hdparm', '-I', '/dev/sda'),
mock.call('shred', '--force', '--verbose',
'--iterations', '2', '/dev/sda')
])
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_shred_0_pass_no_zeroize(self, mocked_execute):
hdparm_output = create_hdparm_info(
supported=False, enabled=False, frozen=False, enhanced_erase=False)
info = self.node['driver_internal_info']
info['agent_erase_devices_iterations'] = 0
info['agent_erase_devices_zeroize'] = False
mocked_execute.side_effect = [
(hdparm_output, ''),
(SHRED_OUTPUT_0_ITERATIONS_ZERO_FALSE, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
mocked_execute.assert_has_calls([
mock.call('hdparm', '-I', '/dev/sda'),
mock.call('shred', '--force', '--verbose',
'--iterations', '0', '/dev/sda')
])
@mock.patch.object(hardware.GenericHardwareManager,
'_is_virtual_media_device', autospec=True)
def test_erase_block_device_virtual_media(self, vm_mock):
vm_mock.return_value = True
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
vm_mock.assert_called_once_with(self.hardware, block_device)
@mock.patch.object(os, 'readlink', autospec=True)
@mock.patch.object(os.path, 'exists', autospec=True)
def test__is_virtual_media_device_exists(self, mocked_exists,
mocked_link):
mocked_exists.return_value = True
mocked_link.return_value = '../../sda'
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
res = self.hardware._is_virtual_media_device(block_device)
self.assertTrue(res)
mocked_exists.assert_called_once_with('/dev/disk/by-label/ir-vfd-dev')
mocked_link.assert_called_once_with('/dev/disk/by-label/ir-vfd-dev')
@mock.patch.object(os, 'readlink', autospec=True)
@mock.patch.object(os.path, 'exists', autospec=True)
def test__is_virtual_media_device_exists_no_match(self, mocked_exists,
mocked_link):
mocked_exists.return_value = True
mocked_link.return_value = '../../sdb'
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
res = self.hardware._is_virtual_media_device(block_device)
self.assertFalse(res)
mocked_exists.assert_called_once_with('/dev/disk/by-label/ir-vfd-dev')
mocked_link.assert_called_once_with('/dev/disk/by-label/ir-vfd-dev')
@mock.patch.object(os, 'readlink', autospec=True)
@mock.patch.object(os.path, 'exists', autospec=True)
def test__is_virtual_media_device_path_doesnt_exist(self, mocked_exists,
mocked_link):
mocked_exists.return_value = False
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
res = self.hardware._is_virtual_media_device(block_device)
self.assertFalse(res)
mocked_exists.assert_called_once_with('/dev/disk/by-label/ir-vfd-dev')
self.assertFalse(mocked_link.called)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_shred_fail_oserror(self, mocked_execute):
mocked_execute.side_effect = OSError
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
res = self.hardware._shred_block_device(self.node, block_device)
self.assertFalse(res)
mocked_execute.assert_called_once_with(
'shred', '--force', '--zero', '--verbose', '--iterations', '1',
'/dev/sda')
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_shred_fail_processerror(self, mocked_execute):
mocked_execute.side_effect = processutils.ProcessExecutionError
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
res = self.hardware._shred_block_device(self.node, block_device)
self.assertFalse(res)
mocked_execute.assert_called_once_with(
'shred', '--force', '--zero', '--verbose', '--iterations', '1',
'/dev/sda')
@mock.patch.object(hardware.GenericHardwareManager, '_shred_block_device',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_ata_security_enabled(
self, mocked_execute, mock_shred):
hdparm_output = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, ''),
None,
(hdparm_output, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.assertRaises(
errors.IncompatibleHardwareMethodError,
self.hardware.erase_block_device,
self.node,
block_device)
self.assertFalse(mock_shred.called)
@mock.patch.object(hardware.GenericHardwareManager, '_shred_block_device',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_ata_security_enabled_unlock_attempt(
self, mocked_execute, mock_shred):
hdparm_output = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
hdparm_output_not_enabled = create_hdparm_info(
supported=True, enabled=False, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, ''),
'',
(hdparm_output_not_enabled, ''),
'',
'',
(hdparm_output_not_enabled, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
self.assertFalse(mock_shred.called)
@mock.patch.object(utils, 'execute', autospec=True)
def test__ata_erase_security_enabled_unlock_exception(
self, mocked_execute):
hdparm_output = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, ''),
processutils.ProcessExecutionError()
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.assertRaises(errors.BlockDeviceEraseError,
self.hardware._ata_erase,
block_device)
@mock.patch.object(utils, 'execute', autospec=True)
def test__ata_erase_security_enabled_set_password_exception(
self, mocked_execute):
hdparm_output = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
hdparm_output_not_enabled = create_hdparm_info(
supported=True, enabled=False, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, ''),
'',
(hdparm_output_not_enabled, ''),
'',
processutils.ProcessExecutionError()
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.assertRaises(errors.BlockDeviceEraseError,
self.hardware._ata_erase,
block_device)
@mock.patch.object(utils, 'execute', autospec=True)
def test__ata_erase_security_erase_exec_exception(
self, mocked_execute):
hdparm_output = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
hdparm_output_not_enabled = create_hdparm_info(
supported=True, enabled=False, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, '', '-1'),
'',
(hdparm_output_not_enabled, ''),
'',
processutils.ProcessExecutionError()
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.assertRaises(errors.BlockDeviceEraseError,
self.hardware._ata_erase,
block_device)
@mock.patch.object(hardware.GenericHardwareManager, '_shred_block_device',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_ata_frozen(self, mocked_execute, mock_shred):
hdparm_output = create_hdparm_info(
supported=True, enabled=False, frozen=True, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output, '')
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.assertRaises(
errors.IncompatibleHardwareMethodError,
self.hardware.erase_block_device,
self.node,
block_device)
self.assertFalse(mock_shred.called)
@mock.patch.object(hardware.GenericHardwareManager, '_shred_block_device',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_ata_failed(self, mocked_execute, mock_shred):
hdparm_output_before = create_hdparm_info(
supported=True, enabled=False, frozen=False, enhanced_erase=False)
# If security mode remains enabled after the erase, it is indicative
# of a failed erase.
hdparm_output_after = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output_before, ''),
('', ''),
('', ''),
(hdparm_output_after, ''),
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.assertRaises(
errors.IncompatibleHardwareMethodError,
self.hardware.erase_block_device,
self.node,
block_device)
self.assertFalse(mock_shred.called)
@mock.patch.object(hardware.GenericHardwareManager, '_shred_block_device',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_erase_block_device_ata_failed_continued(
self, mocked_execute, mock_shred):
info = self.node['driver_internal_info']
info['agent_continue_if_ata_erase_failed'] = True
hdparm_output_before = create_hdparm_info(
supported=True, enabled=False, frozen=False, enhanced_erase=False)
# If security mode remains enabled after the erase, it is indicative
# of a failed erase.
hdparm_output_after = create_hdparm_info(
supported=True, enabled=True, frozen=False, enhanced_erase=False)
mocked_execute.side_effect = [
(hdparm_output_before, ''),
('', ''),
('', ''),
(hdparm_output_after, ''),
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
self.hardware.erase_block_device(self.node, block_device)
self.assertTrue(mock_shred.called)
def test_normal_vs_enhanced_security_erase(self):
@mock.patch.object(utils, 'execute', autospec=True)
def test_security_erase_option(test_case,
enhanced_erase,
expected_option,
mocked_execute):
mocked_execute.side_effect = [
(create_hdparm_info(
supported=True, enabled=False, frozen=False,
enhanced_erase=enhanced_erase), ''),
('', ''),
('', ''),
(create_hdparm_info(
supported=True, enabled=False, frozen=False,
enhanced_erase=enhanced_erase), ''),
]
block_device = hardware.BlockDevice('/dev/sda', 'big', 1073741824,
True)
test_case.hardware.erase_block_device(self.node, block_device)
mocked_execute.assert_any_call('hdparm', '--user-master', 'u',
expected_option,
'NULL', '/dev/sda')
test_security_erase_option(
self, True, '--security-erase-enhanced')
test_security_erase_option(
self, False, '--security-erase')
@mock.patch.object(hardware.GenericHardwareManager,
'_is_virtual_media_device', autospec=True)
@mock.patch.object(hardware.GenericHardwareManager,
'list_block_devices', autospec=True)
@mock.patch.object(disk_utils, 'destroy_disk_metadata', autospec=True)
def test_erase_devices_metadata(
self, mock_metadata, mock_list_devs, mock__is_vmedia):
block_devices = [
hardware.BlockDevice('/dev/sr0', 'vmedia', 12345, True),
hardware.BlockDevice('/dev/sda', 'small', 65535, False),
]
mock_list_devs.return_value = block_devices
mock__is_vmedia.side_effect = (True, False)
self.hardware.erase_devices_metadata(self.node, [])
mock_metadata.assert_called_once_with(
'/dev/sda', self.node['uuid'])
mock_list_devs.assert_called_once_with(mock.ANY)
mock__is_vmedia.assert_has_calls([
mock.call(mock.ANY, block_devices[0]),
mock.call(mock.ANY, block_devices[1])
])
@mock.patch.object(hardware.GenericHardwareManager,
'_is_virtual_media_device', autospec=True)
@mock.patch.object(hardware.GenericHardwareManager,
'list_block_devices', autospec=True)
@mock.patch.object(disk_utils, 'destroy_disk_metadata', autospec=True)
def test_erase_devices_metadata_error(
self, mock_metadata, mock_list_devs, mock__is_vmedia):
block_devices = [
hardware.BlockDevice('/dev/sda', 'small', 65535, False),
hardware.BlockDevice('/dev/sdb', 'big', 10737418240, True),
]
mock__is_vmedia.return_value = False
mock_list_devs.return_value = block_devices
# Simulate /dev/sda failing and /dev/sdb succeeding
error_output = 'Booo00000ooommmmm'
mock_metadata.side_effect = (
processutils.ProcessExecutionError(error_output),
None,
)
self.assertRaisesRegex(errors.BlockDeviceEraseError, error_output,
self.hardware.erase_devices_metadata,
self.node, [])
# Assert all devices are erased independent if one of them
# failed previously
mock_metadata.assert_has_calls([
mock.call('/dev/sda', self.node['uuid']),
mock.call('/dev/sdb', self.node['uuid']),
])
mock_list_devs.assert_called_once_with(mock.ANY)
mock__is_vmedia.assert_has_calls([
mock.call(mock.ANY, block_devices[0]),
mock.call(mock.ANY, block_devices[1])
])
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_bmc_address(self, mocked_execute):
mocked_execute.return_value = '192.1.2.3\n', ''
self.assertEqual('192.1.2.3', self.hardware.get_bmc_address())
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_bmc_address_virt(self, mocked_execute):
mocked_execute.side_effect = processutils.ProcessExecutionError()
self.assertIsNone(self.hardware.get_bmc_address())
@mock.patch.object(utils, 'execute', autospec=True)
def test_get_system_vendor_info(self, mocked_execute):
mocked_execute.return_value = (
'# dmidecode 2.12\n'
'SMBIOS 2.6 present.\n'
'\n'
'Handle 0x0001, DMI type 1, 27 bytes\n'
'System Information\n'
'\tManufacturer: NEC\n'
'\tProduct Name: Express5800/R120b-2 [N8100-1653]\n'
'\tVersion: FR1.3\n'
'\tSerial Number: 0800113\n'
'\tUUID: 00433468-26A5-DF11-8001-406186F5A681\n'
'\tWake-up Type: Power Switch\n'
'\tSKU Number: Not Specified\n'
'\tFamily: Not Specified\n'
'\n'
'Handle 0x002E, DMI type 12, 5 bytes\n'
'System Configuration Options\n'
'\tOption 1: CLR_CMOS: Close to clear CMOS\n'
'\tOption 2: BMC_FRB3: Close to stop FRB3 Timer\n'
'\tOption 3: BIOS_RECOVERY: Close to run BIOS Recovery\n'
'\tOption 4: PASS_DIS: Close to clear Password\n'
'\n'
'Handle 0x0059, DMI type 32, 11 bytes\n'
'System Boot Information\n'
'\tStatus: No errors detected\n'
), ''
self.assertEqual('Express5800/R120b-2 [N8100-1653]',
self.hardware.get_system_vendor_info().product_name)
self.assertEqual('0800113',
self.hardware.get_system_vendor_info().serial_number)
self.assertEqual('NEC',
self.hardware.get_system_vendor_info().manufacturer)
@mock.patch.object(hardware.GenericHardwareManager, 'list_block_devices',
autospec=True)
@mock.patch.object(hardware, '_check_for_iscsi', autospec=True)
@mock.patch.object(time, 'sleep', autospec=True)
@mock.patch.object(utils, 'guess_root_disk', autospec=True)
def test_evaluate_hw_waits_for_disks(self, mocked_root_dev, mocked_sleep,
mocked_check_for_iscsi,
mocked_block_dev):
mocked_root_dev.side_effect = [
errors.DeviceNotFound('boom'),
None
]
result = self.hardware.evaluate_hardware_support()
self.assertTrue(mocked_check_for_iscsi.called)
self.assertEqual(hardware.HardwareSupport.GENERIC, result)
mocked_root_dev.assert_called_with(mocked_block_dev.return_value)
self.assertEqual(2, mocked_root_dev.call_count)
mocked_sleep.assert_called_once_with(CONF.disk_wait_delay)
@mock.patch.object(hardware, '_check_for_iscsi', mock.Mock())
@mock.patch.object(hardware.GenericHardwareManager, 'list_block_devices',
autospec=True)
@mock.patch.object(time, 'sleep', autospec=True)
@mock.patch.object(utils, 'guess_root_disk', autospec=True)
def test_evaluate_hw_waits_for_disks_nonconfigured(self, mocked_root_dev,
mocked_sleep,
mocked_block_dev):
mocked_root_dev.side_effect = [
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
None
]
self.hardware.evaluate_hardware_support()
mocked_root_dev.assert_called_with(mocked_block_dev.return_value)
self.assertEqual(10, mocked_root_dev.call_count)
@mock.patch.object(hardware, '_check_for_iscsi', mock.Mock())
@mock.patch.object(hardware.GenericHardwareManager, 'list_block_devices',
autospec=True)
@mock.patch.object(time, 'sleep', autospec=True)
@mock.patch.object(utils, 'guess_root_disk', autospec=True)
def test_evaluate_hw_waits_for_disks_configured(self, mocked_root_dev,
mocked_sleep,
mocked_block_dev):
CONF.set_override('disk_wait_attempts', '2')
mocked_root_dev.side_effect = [
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
errors.DeviceNotFound('boom'),
None
]
self.hardware.evaluate_hardware_support()
mocked_root_dev.assert_called_with(mocked_block_dev.return_value)
self.assertEqual(2, mocked_root_dev.call_count)
@mock.patch.object(hardware, '_check_for_iscsi', mock.Mock())
@mock.patch.object(hardware.GenericHardwareManager, 'list_block_devices',
autospec=True)
@mock.patch.object(time, 'sleep', autospec=True)
@mock.patch.object(utils, 'guess_root_disk', autospec=True)
def test_evaluate_hw_disks_timeout_unconfigured(self, mocked_root_dev,
mocked_sleep,
mocked_block_dev):
mocked_root_dev.side_effect = errors.DeviceNotFound('boom')
self.hardware.evaluate_hardware_support()
mocked_sleep.assert_called_with(3)
@mock.patch.object(hardware, '_check_for_iscsi', mock.Mock())
@mock.patch.object(hardware.GenericHardwareManager, 'list_block_devices',
autospec=True)
@mock.patch.object(time, 'sleep', autospec=True)
@mock.patch.object(utils, 'guess_root_disk', autospec=True)
def test_evaluate_hw_disks_timeout_configured(self, mocked_root_dev,
mocked_sleep,
mocked_block_dev):
CONF.set_override('disk_wait_delay', '5')
mocked_root_dev.side_effect = errors.DeviceNotFound('boom')
self.hardware.evaluate_hardware_support()
mocked_sleep.assert_called_with(5)
@mock.patch.object(hardware.GenericHardwareManager, 'list_block_devices',
autospec=True)
@mock.patch.object(hardware, '_check_for_iscsi', autospec=True)
@mock.patch.object(time, 'sleep', autospec=True)
@mock.patch.object(utils, 'guess_root_disk', autospec=True)
def test_evaluate_hw_disks_timeout(self, mocked_root_dev, mocked_sleep,
mocked_check_for_iscsi,
mocked_block_dev):
mocked_root_dev.side_effect = errors.DeviceNotFound('boom')
result = self.hardware.evaluate_hardware_support()
self.assertEqual(hardware.HardwareSupport.GENERIC, result)
mocked_root_dev.assert_called_with(mocked_block_dev.return_value)
self.assertEqual(CONF.disk_wait_attempts,
mocked_root_dev.call_count)
mocked_sleep.assert_called_with(CONF.disk_wait_delay)
@mock.patch.object(utils, 'get_agent_params',
lambda: {'BOOTIF': 'boot:if'})
@mock.patch.object(os.path, 'isdir', autospec=True)
def test_get_boot_info_pxe_interface(self, mocked_isdir):
mocked_isdir.return_value = False
result = self.hardware.get_boot_info()
self.assertEqual(hardware.BootInfo(current_boot_mode='bios',
pxe_interface='boot:if'),
result)
@mock.patch.object(os.path, 'isdir', autospec=True)
def test_get_boot_info_bios(self, mocked_isdir):
mocked_isdir.return_value = False
result = self.hardware.get_boot_info()
self.assertEqual(hardware.BootInfo(current_boot_mode='bios'), result)
mocked_isdir.assert_called_once_with('/sys/firmware/efi')
@mock.patch.object(os.path, 'isdir', autospec=True)
def test_get_boot_info_uefi(self, mocked_isdir):
mocked_isdir.return_value = True
result = self.hardware.get_boot_info()
self.assertEqual(hardware.BootInfo(current_boot_mode='uefi'), result)
mocked_isdir.assert_called_once_with('/sys/firmware/efi')
@mock.patch.object(os, 'listdir', lambda *_: [])
@mock.patch.object(utils, 'execute', autospec=True)
class TestModuleFunctions(base.IronicAgentTest):
@mock.patch.object(hardware, '_get_device_info',
lambda x, y, z: 'FooTastic')
@mock.patch.object(hardware, '_udev_settle', autospec=True)
@mock.patch.object(hardware.pyudev.Device, "from_device_file",
autospec=False)
def test_list_all_block_devices_success(self, mocked_fromdevfile,
mocked_udev, mocked_execute):
mocked_fromdevfile.return_value = {}
mocked_execute.return_value = (BLK_DEVICE_TEMPLATE_SMALL, '')
result = hardware.list_all_block_devices()
mocked_execute.assert_called_once_with(
'lsblk', '-Pbdi', '-oKNAME,MODEL,SIZE,ROTA,TYPE',
check_exit_code=[0])
self.assertEqual(BLK_DEVICE_TEMPLATE_SMALL_DEVICES, result)
mocked_udev.assert_called_once_with()
@mock.patch.object(hardware, '_get_device_info',
lambda x, y: "FooTastic")
@mock.patch.object(hardware, '_udev_settle', autospec=True)
def test_list_all_block_devices_wrong_block_type(self, mocked_udev,
mocked_execute):
mocked_execute.return_value = ('TYPE="foo" MODEL="model"', '')
result = hardware.list_all_block_devices()
mocked_execute.assert_called_once_with(
'lsblk', '-Pbdi', '-oKNAME,MODEL,SIZE,ROTA,TYPE',
check_exit_code=[0])
self.assertEqual([], result)
mocked_udev.assert_called_once_with()
@mock.patch.object(hardware, '_udev_settle', autospec=True)
def test_list_all_block_devices_missing(self, mocked_udev,
mocked_execute):
"""Test for missing values returned from lsblk"""
mocked_execute.return_value = ('TYPE="disk" MODEL="model"', '')
self.assertRaisesRegex(
errors.BlockDeviceError,
r'^Block device caused unknown error: KNAME, ROTA, SIZE must be '
r'returned by lsblk.$',
hardware.list_all_block_devices)
mocked_udev.assert_called_once_with()
def test__udev_settle(self, mocked_execute):
hardware._udev_settle()
mocked_execute.assert_called_once_with('udevadm', 'settle')
def test__check_for_iscsi(self, mocked_execute):
hardware._check_for_iscsi()
mocked_execute.assert_has_calls([
mock.call('iscsistart', '-f'),
mock.call('iscsistart', '-b')])
def test__check_for_iscsi_no_iscsi(self, mocked_execute):
mocked_execute.side_effect = processutils.ProcessExecutionError()
hardware._check_for_iscsi()
mocked_execute.assert_has_calls([
mock.call('iscsistart', '-f')])
def create_hdparm_info(supported=False, enabled=False, frozen=False,
enhanced_erase=False):
def update_values(values, state, key):
if not state:
values[key] = 'not' + values[key]
values = {
'supported': '\tsupported',
'enabled': '\tenabled',
'frozen': '\tfrozen',
'enhanced_erase': '\tsupported: enhanced erase',
}
update_values(values, supported, 'supported')
update_values(values, enabled, 'enabled')
update_values(values, frozen, 'frozen')
update_values(values, enhanced_erase, 'enhanced_erase')
return HDPARM_INFO_TEMPLATE % values
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