/usr/lib/python3/dist-packages/checkbox_support/parsers/udevadm.py is in python3-checkbox-support 0.22-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# This file is part of Checkbox.
#
# Copyright 2011-2013 Canonical Ltd.
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# Checkbox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Checkbox. If not, see <http://www.gnu.org/licenses/>.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
from collections import OrderedDict
import re
import string
from checkbox_support.lib.bit import get_bitmask
from checkbox_support.lib.bit import test_bit
from checkbox_support.lib.input import Input
from checkbox_support.lib.pci import Pci
from checkbox_support.lib.usb import Usb
PCI_RE = re.compile(
r"^pci:"
r"v(?P<vendor_id>[%(hex)s]{8})"
r"d(?P<product_id>[%(hex)s]{8})"
r"sv(?P<subvendor_id>[%(hex)s]{8})"
r"sd(?P<subproduct_id>[%(hex)s]{8})"
r"bc(?P<class>[%(hex)s]{2})"
r"sc(?P<subclass>[%(hex)s]{2})"
r"i(?P<interface>[%(hex)s]{2})"
% {"hex": string.hexdigits})
PNP_RE = re.compile(
r"^acpi:"
r"(?P<vendor_name>[%(upper)s]{3})"
r"(?P<product_id>[%(hex)s]{4}):"
% {"upper": string.ascii_uppercase, "hex": string.hexdigits})
USB_RE = re.compile(
r"^usb:"
r"v(?P<vendor_id>[%(hex)s]{4})"
r"p(?P<product_id>[%(hex)s]{4})"
r"d(?P<revision>[%(hex)s]{4})"
r"dc(?P<class>[%(hex)s]{2})"
r"dsc(?P<subclass>[%(hex)s]{2})"
r"dp(?P<protocol>[%(hex)s]{2})"
r"ic(?P<interface_class>[%(hex)s]{2})"
r"isc(?P<interface_subclass>[%(hex)s]{2})"
r"ip(?P<interface_protocol>[%(hex)s]{2})"
% {"hex": string.hexdigits})
USB_SYSFS_CONFIG_RE = re.compile(
r"usb.*?:\d+\.\d+$")
SCSI_RE = re.compile(
r"^scsi:"
r"t-0x(?P<type>[%(hex)s]{2})"
% {"hex": string.hexdigits})
PLATFORM_RE = re.compile(
r"^platform:"
r"(?P<module_name>.*)")
INPUT_RE = re.compile(
r"^input:"
r"b(?P<bus_type>[%(hex)s]{4})"
r"v(?P<vendor_id>[%(hex)s]{4})"
r"p(?P<product_id>[%(hex)s]{4})"
r"e(?P<version>[%(hex)s]{4})"
% {"hex": string.hexdigits})
INPUT_SYSFS_ID = re.compile(
r"/input/input\d+$")
OPENFIRMWARE_RE = re.compile(
r"^of:"
r"N(?P<name>.*?)"
r"T(?P<type>.*?)"
r"C(?P<compatible>.*?)")
CARD_READER_RE = re.compile(r"SD|MMC|CF|MS(?!ata)|SM|xD|Card", re.I)
GENERIC_RE = re.compile(r"Generic", re.I)
FLASH_RE = re.compile(r"Flash", re.I)
FLASH_DISK_RE = re.compile(r"Mass|Storage|Disk", re.I)
class UdevadmDevice(object):
__slots__ = (
"_environment",
"_name",
"_bits",
"_stack",
"_bus",
"_interface",
"_product",
"_product_id",
"_vendor",
"_vendor_id",)
def __init__(self, environment, name, bits=None, stack=[]):
self._environment = environment
self._name = name
self._bits = bits
self._stack = stack
self._bus = None
self._interface = None
self._product = None
self._product_id = None
self._vendor = None
self._vendor_id = None
def __repr__(self):
vid = int(self.vendor_id) if self.vendor_id else 0
pid = int(self.product_id) if self.product_id else 0
return("<{}: bus: {} id [{:x}:{:x}] {}>".format(
type(self).__name__, self.bus, vid, pid,
self.product))
@property
def name(self):
if self._name is not None:
return self._name
@property
def bus(self):
if self._bus is not None:
return self._bus
# Change the bus from 'acpi' to 'pnp' for some devices
if PNP_RE.match(self._environment.get("MODALIAS", "")) \
and self._raw_path.endswith(":00"):
return "pnp"
# Change the bus from 'block' to parent
if self._environment.get("DEVTYPE") == "disk" and self._stack:
return self._stack[-1]._environment.get("SUBSYSTEM")
bus = self._environment.get("SUBSYSTEM")
if bus == "pnp":
return None
if bus == 'input' and any(d.bus == 'usb' for d in self._stack):
bus = 'usb'
return bus
@bus.setter
def bus(self, value):
self._bus = value
@property
def category(self):
if "IFINDEX" in self._environment:
if "DEVTYPE" in self._environment:
devtype = self._environment["DEVTYPE"]
if devtype in ("wlan", "wimax"):
return "WIRELESS"
# Ralink and realtek SDIO wireless
if "INTERFACE" in self._environment:
if (self.driver and
self.driver.startswith('rt') and
(self._environment["INTERFACE"].startswith('ra') or
self._environment["INTERFACE"].startswith('wlan')
)):
return "WIRELESS"
return "NETWORK"
if self.bus == "bluetooth":
return "BLUETOOTH"
if "PCI_CLASS" in self._environment:
pci_class_string = self._environment["PCI_CLASS"]
pci_class = int(pci_class_string, 16)
# Strip prog_if if defined
if pci_class > 0xFFFF:
pci_class >>= 8
subclass_id = pci_class & 0xFF
class_id = (pci_class >> 8) & 0xFF
if class_id == Pci.BASE_CLASS_NETWORK:
if subclass_id == Pci.CLASS_NETWORK_WIRELESS:
return "WIRELESS"
else:
return "NETWORK"
if class_id == Pci.BASE_CLASS_DISPLAY:
# Not all DISPLAY devices are display adapters. The ones with
# subclass OTHER are usually uninteresting devices. As an
# exception, some vendors have recently begun to use the
# 0x80 (Pci.CLASS_DISPLAY_OTHER) subclass identifier. In order
# to correctly identify them special heuristics are needed,
# these are encapsulated in the known_to_be_video_device method
# (further below).
if (subclass_id == Pci.CLASS_DISPLAY_VGA or
subclass_id == Pci.CLASS_DISPLAY_3D or
(subclass_id == Pci.CLASS_DISPLAY_OTHER
and known_to_be_video_device(
self.vendor_id, self.product_id, class_id,
subclass_id))):
return "VIDEO"
if class_id == Pci.BASE_CLASS_SERIAL \
and subclass_id == Pci.CLASS_SERIAL_USB:
return "USB"
if class_id == Pci.BASE_CLASS_STORAGE:
if subclass_id == Pci.CLASS_STORAGE_SCSI:
return "SCSI"
if subclass_id == Pci.CLASS_STORAGE_IDE:
return "IDE"
if subclass_id == Pci.CLASS_STORAGE_FLOPPY:
return "FLOPPY"
if subclass_id == Pci.CLASS_STORAGE_RAID:
return "RAID"
if class_id == Pci.BASE_CLASS_COMMUNICATION \
and subclass_id == Pci.CLASS_COMMUNICATION_MODEM:
return "MODEM"
if class_id == Pci.BASE_CLASS_INPUT \
and subclass_id == Pci.CLASS_INPUT_SCANNER:
return "SCANNER"
if class_id == Pci.BASE_CLASS_MULTIMEDIA:
if subclass_id == Pci.CLASS_MULTIMEDIA_VIDEO:
return "CAPTURE"
if subclass_id == Pci.CLASS_MULTIMEDIA_AUDIO \
or subclass_id == Pci.CLASS_MULTIMEDIA_AUDIO_DEVICE:
return "AUDIO"
if class_id == Pci.BASE_CLASS_SERIAL \
and subclass_id == Pci.CLASS_SERIAL_FIREWIRE:
return "FIREWIRE"
if class_id == Pci.BASE_CLASS_WIRELESS \
and subclass_id == Pci.CLASS_WIRELESS_BLUETOOTH:
return "BLUETOOTH"
if class_id == Pci.BASE_CLASS_BRIDGE \
and (subclass_id == Pci.CLASS_BRIDGE_PCMCIA
or subclass_id == Pci.CLASS_BRIDGE_CARDBUS):
return "SOCKET"
if "TYPE" in self._environment and "INTERFACE" in self._environment:
interface_class, interface_subclass, interface_protocol = (
int(i) for i in self._environment["INTERFACE"].split("/"))
if interface_class == Usb.BASE_CLASS_AUDIO:
return "AUDIO"
if interface_class == Usb.BASE_CLASS_PRINTER:
return "PRINTER"
if interface_class == Usb.BASE_CLASS_STORAGE:
if interface_subclass == Usb.CLASS_STORAGE_FLOPPY:
return "FLOPPY"
if interface_subclass == Usb.CLASS_STORAGE_SCSI:
return "USB"
if interface_class == Usb.BASE_CLASS_VIDEO:
return "CAPTURE"
if interface_class == Usb.BASE_CLASS_WIRELESS:
if interface_protocol == Usb.PROTOCOL_BLUETOOTH:
return "BLUETOOTH"
else:
return "WIRELESS"
if (interface_class, interface_subclass, interface_protocol) ==\
(255, 255, 255) and self.driver == "btusb":
# This heuristic accounts for bluetooth devices which usually
# have INTERFACE=224/*/1, however in the "field" we've run
# across a few (Mediatek combo cards) that have unknown
# (255/255/255) values and thus break the previous heuristic.
# We assume that if a device has these weird INTERFACE values
# *but* it uses the btusb driver, then it must be a bluetooth
# controller. Other devices with btusb *but* with
# INTERFACE=255/1/1 have been seen on systems where the actual
# usb controller was identified by the old heuristic, so here
# we need to match all three fields to avoid duplicating
# devices. See http://pad.lv/1210405
return "BLUETOOTH"
if 'ID_INPUT_KEYBOARD' in self._environment:
return "KEYBOARD"
if 'ID_INPUT_TOUCHPAD' in self._environment:
return "TOUCHPAD"
if 'ID_INPUT_TOUCHSCREEN' in self._environment:
return "TOUCHSCREEN"
if "ID_INPUT_ACCELEROMETER" in self._environment:
return "ACCELEROMETER"
if "KEY" in self._environment:
key = self._environment["KEY"].strip("=")
bitmask = get_bitmask(key)
if test_bit(Input.KEY_CAMERA, bitmask, self._bits):
# Avoid detecting the power button as a capture device
if self.vendor_id == 0:
return "OTHER"
# Avoid identifying media/hot keys as pure capture devices
if not (test_bit(Input.KEY_PLAYPAUSE, bitmask, self._bits) or
test_bit(Input.KEY_PLAY, bitmask, self._bits) or
test_bit(Input.KEY_WLAN, bitmask, self._bits)):
# Consider a device with both camera and mouse properties
# as a KVM hardware device ("keyboard, video and mouse")
if test_bit(Input.BTN_MOUSE, bitmask, self._bits):
return "KVM"
else:
return "CAPTURE"
if 'ID_INPUT_MOUSE' in self._environment:
return "MOUSE"
if self.driver:
if self.driver.startswith("sdhci"):
return "CARDREADER"
if self.driver.startswith("mmc"):
return "CARDREADER"
if self.driver == "rts_pstor":
return "CARDREADER"
# See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702145
if self.driver.startswith("rtsx"):
return "CARDREADER"
if ((self._environment.get("DEVTYPE") not in ("disk", "partition")
or 'ID_DRIVE_FLASH_SD' in self._environment
or ('ID_MODEL' in self._environment
and self._environment['ID_MODEL'] == 'Card_Reader'))
and self.driver == "sd" and self.product):
# The condition:
# 'ID_MODEL' in self._environment
# and
# self._environment['ID_MODEL'] == 'Card_Reader'
# is a workaround specific to LP: #1334224
# Otherwise, the card reader,
# 058f:6366 Alcor Micro Corp. Multi Flash Reader,
# of the system,
# CID 201009-6503 Dell Inspiron One 2310,
# will be given the category attribute 'DISK' by udev_resource
if any(FLASH_RE.search(k) for k in self._environment.keys()):
return "CARDREADER"
if any(d.bus == 'usb' for d in self._stack):
if (self.product is not None and
CARD_READER_RE.search(self.product)):
return "CARDREADER"
if (self.vendor is not None and
GENERIC_RE.search(self.vendor) and
not FLASH_DISK_RE.search(self.product)):
return "CARDREADER"
if "ID_TYPE" in self._environment:
id_type = self._environment["ID_TYPE"]
if id_type == "cd":
return "CDROM"
if (
id_type == "disk"
and not any(d.category == "CARDREADER" for d in self._stack)
):
return "DISK"
if not any(d.bus == 'usb' for d in self._stack):
if id_type == "video":
return "VIDEO"
if "DEVTYPE" in self._environment:
devtype = self._environment["DEVTYPE"]
if devtype == "disk":
if "ID_CDROM" in self._environment:
return "CDROM"
if "ID_DRIVE_FLOPPY" in self._environment:
return "FLOPPY"
if self.driver == 'virtio_blk' and self.bus == 'virtio':
# A QEMU/KVM virtual disk, but should be treated
# as DISK nonetheless
return "DISK"
if self.driver == 'nvme' and self.bus == 'pci':
# NVMe device in PCIe bus, this should also be
# treated as DISK as it presents block devices
# we need to test, and is a valid disk device
# we need to report.
return "DISK"
if devtype == "scsi_device":
match = SCSI_RE.match(self._environment.get("MODALIAS", ""))
type = int(match.group("type"), 16) if match else -1
# Check FLASH drives, see /lib/udev/rules.d/80-udisks.rules
if (
type in (0, 7, 14)
and not any(d.driver == "rts_pstor" for d in self._stack)
):
return "DISK"
if type == 1:
return "TAPE"
if type == 2:
return "PRINTER"
if type in (4, 5):
return "CDROM"
if type == 6:
return "SCANNER"
if type == 12:
return "RAID"
if "DRIVER" in self._environment:
if self._environment["DRIVER"] == "floppy":
return "FLOPPY"
# Some audio and serial devices have a product but no vendor
# or product id. Special-case their categories for backwards-
# compatibility.
if self.bus == "sound":
return "AUDIO"
if self.bus == "tty":
return "OTHER"
# Any devices that have a product name and proper vendor and product
# IDs, but had no other category, are lumped together in OTHER.
# A few devices may have no self.product but carry PRODUCT data in
# their environment.
if ((self.product or self._environment.get("PRODUCT")) and
None not in (self.vendor_id, self.product_id)):
return "OTHER"
# Limbo of devices I couldn't otherwise categorize. In practice
# having no category means the device may be uninteresting, it's
# up to downstream users of this class to decide what to do with
# those devices.
return None
@property
def driver(self):
if "DRIVER" in self._environment:
return self._environment["DRIVER"]
# Check parent device for driver
if self._stack:
parent = self._stack[-1]
if "DRIVER" in parent._environment:
return parent._environment["DRIVER"]
return None
@property
def path(self):
devpath = self._environment.get("DEVPATH")
if (
(self._environment.get("DEVTYPE") == "disk" and self._stack) or
"IFINDEX" in self._environment
):
devpath = re.sub(r"/[^/]+/[^/]+$", "", devpath)
return devpath
@property
def _raw_path(self):
""" Returns the raw device path, this is used internally by
UdevadmParser only
"""
return self._environment.get("DEVPATH")
@property
def product_id(self):
if self._product_id is not None:
return self._product_id
# pci
match = PCI_RE.match(self._environment.get("MODALIAS", ""))
if match:
return int(match.group("product_id"), 16)
# usb
match = USB_RE.match(self._environment.get("MODALIAS", ""))
if match:
return int(match.group("product_id"), 16)
# pnp
match = PNP_RE.match(self._environment.get("MODALIAS", ""))
if match:
product_id = int(match.group("product_id"), 16)
# Ignore interrupt controllers
if product_id > 0x0100:
return product_id
# input
match = INPUT_RE.match(self._environment.get("MODALIAS", ""))
if match:
return int(match.group("product_id"), 16)
return None
@product_id.setter
def product_id(self, value):
self._product_id = value
@property
def vendor_id(self):
if self._vendor_id is not None:
return self._vendor_id
# pci
match = PCI_RE.match(self._environment.get("MODALIAS", ""))
if match:
return int(match.group("vendor_id"), 16)
# usb
match = USB_RE.match(self._environment.get("MODALIAS", ""))
if match:
return int(match.group("vendor_id"), 16)
# input
match = INPUT_RE.match(self._environment.get("MODALIAS", ""))
if match:
vendor_id = int(match.group("vendor_id"), 16)
# Vendor id <= 9 are not valid numbers, force 9 to make sure
# that it will not match an existing (unrelated) vendor in usb.ids
# nor pci.ids
if vendor_id and vendor_id < 9:
vendor_id = 9
return vendor_id
return None
@vendor_id.setter
def vendor_id(self, value):
self._vendor_id = value
@property
def subproduct_id(self):
if "PCI_SUBSYS_ID" in self._environment:
pci_subsys_id = self._environment["PCI_SUBSYS_ID"]
subvendor_id, subproduct_id = pci_subsys_id.split(":")
return int(subproduct_id, 16)
return None
@property
def subvendor_id(self):
if "PCI_SUBSYS_ID" in self._environment:
pci_subsys_id = self._environment["PCI_SUBSYS_ID"]
subvendor_id, subproduct_id = pci_subsys_id.split(":")
return int(subvendor_id, 16)
return None
@property
def product(self):
if self._product is not None:
return self._product
# disk
if self._environment.get("DEVTYPE") == "scsi_device":
for device in reversed(self._stack):
if device._environment.get("ID_BUS") == "usb":
return decode_id(device._environment["ID_MODEL_ENC"])
elif (self._environment.get("DEVTYPE") == "disk" and
"ID_MODEL_ENC" in self._environment):
return decode_id(self._environment["ID_MODEL_ENC"])
# floppy
if self.driver == "floppy":
return "Platform Device"
if "ID_MODEL_FROM_DATABASE" in self._environment:
return self._environment["ID_MODEL_FROM_DATABASE"]
# bluetooth (if USB base class is vendor specific)
if self.bus == 'bluetooth':
vendor_specific = False
# Check parent device modalias
if self._stack:
parent = self._stack[-1]
if "MODALIAS" in parent._environment:
match = USB_RE.match(
parent._environment.get("MODALIAS", ""))
if match:
if int(match.group("class"), 16) == 0xFF:
vendor_specific = True
if vendor_specific:
for device in reversed(self._stack):
if "ID_MODEL_ENC" in device._environment:
return decode_id(device._environment["ID_MODEL_ENC"])
if "IFINDEX" in self._environment:
for device in reversed(self._stack):
# wireless (SoC)
match = PLATFORM_RE.match(
device._environment.get("MODALIAS", ""))
if match:
return match.group("module_name")
# Network (Open Firmware)
match = OPENFIRMWARE_RE.match(
device._environment.get("MODALIAS", ""))
if match:
return match.group("name")
if "IFINDEX" in self._environment and "INTERFACE" in self._environment:
if "ID_MODEL_ENC" in self._environment:
return decode_id(self._environment["ID_MODEL_ENC"])
for element in ("NAME", "POWER_SUPPLY_MODEL_NAME"):
if element in self._environment:
return self._environment[element].strip('"')
return None
@product.setter
def product(self, value):
self._product = value
@property
def vendor(self):
if self._vendor is not None:
return self._vendor
if "RFKILL_NAME" in self._environment:
return None
if "POWER_SUPPLY_MANUFACTURER" in self._environment:
return self._environment["POWER_SUPPLY_MANUFACTURER"]
# pnp
match = PNP_RE.match(self._environment.get("MODALIAS", ""))
if match:
return match.group("vendor_name")
# disk
if self._environment.get("DEVTYPE") == "scsi_device":
for device in reversed(self._stack):
if device._environment.get("ID_BUS") == "usb":
return decode_id(device._environment["ID_VENDOR_ENC"])
elif (self._environment.get("DEVTYPE") == "disk" and
"ID_VENDOR_ENC" in self._environment):
return decode_id(self._environment["ID_VENDOR_ENC"])
if "ID_VENDOR_FROM_DATABASE" in self._environment:
return self._environment["ID_VENDOR_FROM_DATABASE"]
# bluetooth (if USB base class is vendor specific)
if self.bus == 'bluetooth':
vendor_specific = False
# Check parent device modalias
if self._stack:
parent = self._stack[-1]
if "MODALIAS" in parent._environment:
match = USB_RE.match(
parent._environment.get("MODALIAS", ""))
if match:
if int(match.group("class"), 16) == 0xFF:
vendor_specific = True
if vendor_specific:
for device in reversed(self._stack):
if "ID_VENDOR_ENC" in device._environment:
return decode_id(device._environment["ID_VENDOR_ENC"])
if "IFINDEX" in self._environment and "INTERFACE" in self._environment:
if "ID_VENDOR_ENC" in self._environment:
return decode_id(self._environment["ID_VENDOR_ENC"])
return None
@vendor.setter
def vendor(self, value):
self._vendor = value
@property
def interface(self):
if self._interface is not None:
return self._interface
if (self.category in ("NETWORK", "WIRELESS") and
"INTERFACE" in self._environment):
return self._environment["INTERFACE"]
return None
@interface.setter
def interface(self, value):
self._interface = value
def as_json(self):
attributes = ("path", "bus", "category", "driver", "product_id",
"vendor_id", "subproduct_id", "subvendor_id", "product",
"vendor", "interface", "name")
return {a: getattr(self, a) for a in attributes if getattr(self, a)}
class UdevadmParser(object):
"""Parser for the udevadm command."""
device_factory = UdevadmDevice
def __init__(self, stream_or_string, bits=None):
self.stream_or_string = stream_or_string
self.bits = bits
self.devices = OrderedDict()
def _ignoreDevice(self, device):
# Ignore devices without bus information
if not device.bus:
return True
# Do not ignore devices with bus == net and ID_NET_NAME_MAC
# These can be virtual network interfaces which don't have PCI
# product/vendor ID, yet still constitute valid ethX interfaces.
if device.bus == "net" and "ID_NET_NAME_MAC" in device._environment:
return False
# Do not ignore nvme devices on the pci bus, these are to be treated
# as disks (categorization is done elsewhere). Note that the *parent*
# device will have no category, though it's not ignored per se.
if device.bus == 'pci' and device.driver == 'nvme':
return False
# Do not ignore QEMU/KVM virtio disks
if ("ID_PART_TABLE_TYPE" in device._environment and
device.bus == "virtio" and
device.driver == "virtio_blk"):
return False
# Ignore devices without product AND vendor information
if (device.product is None and device.product_id is None and
device.vendor is None and device.vendor_id is None):
return True
# Ignore invalid subsystem information
if (
(device.subproduct_id is None
and device.subvendor_id is not None)
or (device.subproduct_id is not None
and device.subvendor_id is None)):
return True
# Ignore ACPI devices
if device.bus == "acpi":
return True
return False
def getAttributes(self, path):
return {}
def run(self, result):
# Some attribute lines have a space character after the
# ':', others don't have it (see udevadm-info.c).
line_pattern = re.compile(r"(?P<key>[A-Z]):\s*(?P<value>.*)")
multi_pattern = re.compile(r"(?P<key>[^=]+)=(?P<value>.*)")
stack = []
if isinstance(self.stream_or_string, type("")):
output = self.stream_or_string
else:
output = self.stream_or_string.read()
output = output.replace('\r', '') # Just in case...
for record in re.split("\n{2,}", output):
record = record.strip()
if not record:
continue
# Determine path, name and environment
path = None
name = None
element = None
environment = {}
for line in record.splitlines():
line_match = line_pattern.match(line)
if not line_match:
if environment:
# Append to last environment element
environment[element] += line
continue
key = line_match.group("key")
value = line_match.group("value")
if key == "P":
path = value
elif key == "N":
name = value
elif key == "E":
key_match = multi_pattern.match(value)
if not key_match:
raise Exception(
"Device property not supported: %s" % value)
element = key_match.group("key")
environment[element] = key_match.group("value")
# Update stack
while stack:
if stack[-1]._raw_path + "/" in path:
break
stack.pop()
# Set default DEVPATH
environment.setdefault("DEVPATH", path)
device = self.device_factory(
environment, name, self.bits, list(stack))
if not self._ignoreDevice(device):
if device._raw_path in self.devices:
if self.devices[device._raw_path].category == 'CARDREADER':
[
setattr(self.devices[device._raw_path],
device_key, getattr(device, device_key))
for device_key in (
"product", "vendor", "product_id", "vendor_id")
if getattr(device, device_key) is not None
]
elif device.category != "OTHER":
self.devices[device._raw_path] = device
elif device.category == 'BLUETOOTH':
usb_interface_path = USB_SYSFS_CONFIG_RE.sub(
'', device._raw_path)
if not [
d for d in self.devices.values()
if d.category == 'BLUETOOTH' and
usb_interface_path in d._raw_path
]:
self.devices[device._raw_path] = device
elif device.category == 'CAPTURE':
input_id = INPUT_SYSFS_ID.sub('', device._raw_path)
if [
d for d in self.devices.values()
if d.category == 'CAPTURE' and input_id in d._raw_path
]:
self.devices[input_id].product = device.product
else:
usb_interface_path = USB_SYSFS_CONFIG_RE.sub(
'', device._raw_path)
if not [
d for d in self.devices.values()
if d.category == 'CAPTURE' and
usb_interface_path in d._raw_path
]:
self.devices[device._raw_path] = device
else:
self.devices[device._raw_path] = device
stack.append(device)
for device in list(self.devices.values()):
if device.category in ("NETWORK", "WIRELESS", "OTHER"):
dev_interface = [
d for d in self.devices.values()
if d.category in ("NETWORK", "WIRELESS") and
device._raw_path != d._raw_path and
device._raw_path in d._raw_path
]
if dev_interface:
dev_interface = dev_interface.pop()
dev_interface.bus = device.bus
dev_interface.product_id = device.product_id
dev_interface.vendor_id = device.vendor_id
self.devices.pop(device._raw_path, None)
[result.addDevice(device) for device in self.devices.values()]
def decode_id(id):
encoded_id = id.encode("utf-8")
decoded_id = encoded_id.decode("unicode-escape")
return decoded_id.strip()
def known_to_be_video_device(vendor_id, product_id, pci_class, pci_subclass):
# Usually a video device has a PCI subclass_id of Pci.CLASS_DISPLAY_VGA or
# Pci.CLASS_DISPLAY_3d. However, some manufacturers which hadn't previously
# used a subclass_id of Pci.CLASS_DISPLAY_OTHER (0x80 or decimal 128) have
# begun to do so (as of 2013-2014); and others which previously used this
# class for uninteresting devices are now using it for actual video
# devices. This method encapsulates heuristics to decide if a device is a
# valid video adapter, based on product/vendor and pci class/subclass
# information.
if vendor_id == Pci.VENDOR_ID_AMD:
# AMD hadn't used subclass OTHER before, so all AMD devices we get
# asked about are VIDEO.
return True
if vendor_id == Pci.VENDOR_ID_INTEL:
# Intel recently (2014) started using subclass OTHER erratically, some
# older GPUs have subdevices with OTHER which are uninteresting. If
# Intel, we only consider OTHER devices as VIDEO if they are in this
# explicit list
return product_id in [0x0152, 0x0412, 0x0402]
class UdevResult(object):
def __init__(self):
self.devices = {"device_list": []}
def addDevice(self, device):
self.devices["device_list"].append(device)
def parse_udevadm_output(output, bits=None):
"""
Parse output of `LANG=C udevadm info --export-db`
:returns: :class:`UdevadmParser` object that corresponds to the
parsed input
"""
udev = UdevadmParser(output, bits)
result = UdevResult()
udev.run(result)
return result.devices
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