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"""OS-specific functions for: Linux
"""
import platform
import shutil
from pathlib import Path
from milc import cli
from qmk.constants import QMK_FIRMWARE, BOOTLOADER_VIDS_PIDS
from .check import CheckStatus
def _udev_rule(vid, pid=None, *args):
""" Helper function that return udev rules
"""
rule = ""
if pid:
rule = 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", ATTRS{idProduct}=="%s", TAG+="uaccess"' % (
vid,
pid,
)
else:
rule = 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", TAG+="uaccess"' % vid
if args:
rule = ', '.join([rule, *args])
return rule
def _generate_desired_rules(bootloader_vids_pids):
rules = dict()
for bl in bootloader_vids_pids.keys():
rules[bl] = set()
for vid_pid in bootloader_vids_pids[bl]:
if bl == 'caterina' or bl == 'md-boot':
rules[bl].add(_udev_rule(vid_pid[0], vid_pid[1], 'ENV{ID_MM_DEVICE_IGNORE}="1"'))
else:
rules[bl].add(_udev_rule(vid_pid[0], vid_pid[1]))
return rules
def _deprecated_udev_rule(vid, pid=None):
""" Helper function that return udev rules
Note: these are no longer the recommended rules, this is just used to check for them
"""
if pid:
return 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", ATTRS{idProduct}=="%s", MODE:="0666"' % (vid, pid)
else:
return 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", MODE:="0666"' % vid
def check_udev_rules():
"""Make sure the udev rules look good.
"""
rc = CheckStatus.OK
udev_dirs = [
Path("/usr/lib/udev/rules.d/"),
Path("/usr/local/lib/udev/rules.d/"),
Path("/run/udev/rules.d/"),
Path("/etc/udev/rules.d/"),
]
desired_rules = _generate_desired_rules(BOOTLOADER_VIDS_PIDS)
# These rules are no longer recommended, only use them to check for their presence.
deprecated_rules = {
'atmel-dfu': {_deprecated_udev_rule("03eb", "2ff4"), _deprecated_udev_rule("03eb", "2ffb"), _deprecated_udev_rule("03eb", "2ff0")},
'kiibohd': {_deprecated_udev_rule("1c11")},
'stm32': {_deprecated_udev_rule("1eaf", "0003"), _deprecated_udev_rule("0483", "df11")},
'bootloadhid': {_deprecated_udev_rule("16c0", "05df")},
'caterina': {'ATTRS{idVendor}=="2a03", ENV{ID_MM_DEVICE_IGNORE}="1"', 'ATTRS{idVendor}=="2341", ENV{ID_MM_DEVICE_IGNORE}="1"'},
'tmk': {_deprecated_udev_rule("feed")}
}
if any(udev_dir.exists() for udev_dir in udev_dirs):
udev_rules = [rule_file for udev_dir in udev_dirs for rule_file in udev_dir.glob('*.rules')]
current_rules = set()
# Collect all rules from the config files
for rule_file in udev_rules:
for line in rule_file.read_text(encoding='utf-8').split('\n'):
line = line.strip()
if not line.startswith("#") and len(line):
current_rules.add(line)
# Check if the desired rules are among the currently present rules
for bootloader, rules in desired_rules.items():
if not rules.issubset(current_rules):
deprecated_rule = deprecated_rules.get(bootloader)
if deprecated_rule and deprecated_rule.issubset(current_rules):
cli.log.warning("{fg_yellow}Found old, deprecated udev rules for '%s' boards. The new rules on https://docs.qmk.fm/#/faq_build?id=linux-udev-rules offer better security with the same functionality.", bootloader)
else:
# For caterina, check if ModemManager is running
if bootloader == "caterina" and check_modem_manager():
cli.log.warning("{fg_yellow}Detected ModemManager without the necessary udev rules. Please either disable it or set the appropriate udev rules if you are using a Pro Micro.")
rc = CheckStatus.WARNING
cli.log.warning("{fg_yellow}Missing or outdated udev rules for '%s' boards. Run 'sudo cp %s/util/udev/50-qmk.rules /etc/udev/rules.d/'.", bootloader, QMK_FIRMWARE)
else:
cli.log.warning("{fg_yellow}Can't find udev rules, skipping udev rule checking...")
cli.log.debug("Checked directories: %s", ', '.join(str(udev_dir) for udev_dir in udev_dirs))
return rc
def check_systemd():
"""Check if it's a systemd system
"""
return bool(shutil.which("systemctl"))
def check_modem_manager():
"""Returns True if ModemManager is running.
"""
if check_systemd():
mm_check = cli.run(["systemctl", "--quiet", "is-active", "ModemManager.service"], timeout=10)
if mm_check.returncode == 0:
return True
else:
"""(TODO): Add check for non-systemd systems
"""
return False
def os_test_linux():
"""Run the Linux specific tests.
"""
# Don't bother with udev on WSL, for now
if 'microsoft' in platform.uname().release.lower():
cli.log.info("Detected {fg_cyan}Linux (WSL){fg_reset}.")
# https://github.com/microsoft/WSL/issues/4197
if QMK_FIRMWARE.as_posix().startswith("/mnt"):
cli.log.warning("I/O performance on /mnt may be extremely slow.")
return CheckStatus.WARNING
return CheckStatus.OK
else:
cli.log.info("Detected {fg_cyan}Linux{fg_reset}.")
return check_udev_rules()
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