Current File : //usr/lib/python3/dist-packages/UbuntuDrivers/detect.py
'''Hardware and driver package detection functionality for Ubuntu systems.'''
# (C) 2012 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
import os
import logging
import fnmatch
import subprocess
import functools
import re
import json
import apt_pkg
from UbuntuDrivers import kerneldetection
system_architecture = ''
lookup_cache = {}
custom_supported_gpus_json = '/etc/custom_supported_gpus.json'
class NvidiaPkgNameInfo(object):
'''Class to process NVIDIA package names'''
def __init__(self, pkg_name):
self._pkg_name = pkg_name
self._obsolete_name_scheme = False
self._server = False
self._open = False
self._major_ver = -1
self._flavour = ''
self.is_valid = False
self._process_name(self._pkg_name)
def _process_name(self, name):
if 'nvidia' not in name:
logging.debug('NvidiaPkgNameInfo: %s is not an NVIDIA package. Skipping', name)
return
pattern = re.compile('nvidia-([0-9]+)')
match = pattern.match(name)
# Obsolete naming such as nvidia-340
if match:
self._obsolete_name_scheme = True
self._major_ver = match.group(1)
self._flavour = self._major_ver
self.is_valid = True
return
# Recent naming such as nvidia-driver-525
pattern = re.compile('nvidia-driver-([0-9]+)(.*)')
match = pattern.match(name)
if match:
self._server = match.group(0).find('-server') != -1
self._open = match.group(0).find('-open') != -1
self._flavour = '%s%s%s' % (match.group(1),
'-server' if self._server else '',
'-open' if self._open else '')
self.is_valid = True
def has_obsolete_name_scheme(self):
return self._obsolete_name_scheme
def is_server(self):
return self._server
def is_open(self):
return self._open
def get_major_version(self):
return self._major_ver
def get_flavour(self):
return self._flavour
def get_apt_arch():
'''Cache system architecture'''
global system_architecture
if not system_architecture:
system_architecture = apt_pkg.get_architectures()[0]
return system_architecture
def system_modaliases(sys_path=None):
'''Get modaliases present in the system.
This ignores devices whose drivers are statically built into the kernel, as
you cannot replace them with other driver packages anyway.
Return a modalias → sysfs path map.
'''
aliases = {}
devices = sys_path and '%s/devices' % (sys_path) or '/sys/devices'
for path, dirs, files in os.walk(devices):
modalias = None
# most devices have modalias files
if 'modalias' in files:
try:
with open(os.path.join(path, 'modalias')) as f:
modalias = f.read().strip()
except IOError as e:
logging.debug('system_modaliases(): Cannot read %s/modalias: %s',
path, e)
continue
# devices on SSB bus only mention the modalias in the uevent file (as
# of 2.6.24)
elif 'ssb' in path and 'uevent' in files:
with open(os.path.join(path, 'uevent')) as fd:
for line in fd:
if line.startswith('MODALIAS='):
modalias = line.split('=', 1)[1].strip()
break
if not modalias:
continue
# ignore drivers which are statically built into the kernel
driverlink = os.path.join(path, 'driver')
modlink = os.path.join(driverlink, 'module')
if os.path.islink(driverlink) and not os.path.islink(modlink):
# logging.debug('system_modaliases(): ignoring device %s which has no module (built into kernel)', path)
continue
aliases[modalias] = path
return aliases
def _check_video_abi_compat(apt_cache, package):
xorg_video_abi = None
if package.name.startswith('nvidia-driver-'):
xorg_driver_name = package.name.replace('nvidia-driver-', 'xserver-xorg-video-nvidia-')
try:
package = apt_cache[xorg_driver_name]
except KeyError:
logging.debug('Cannot find %s package in the cache. Cannot check ABI' % (xorg_driver_name))
return True
depcache = apt_pkg.DepCache(apt_cache)
candidate = depcache.get_candidate_ver(package)
needs_video_abi = False
try:
for dep_list in candidate.depends_list_str.get('Depends'):
for dep_name, dep_ver, dep_op in dep_list:
if dep_name.startswith('xorg-video-abi-'):
needs_video_abi = True
break
except (KeyError, TypeError):
logging.debug('The %s package seems to have no dependencies. Skipping ABI check' % (package))
needs_video_abi = False
if not needs_video_abi:
logging.debug('Skipping check for %s since it does not depend on video abi' % package.name)
return True
# determine current X.org video driver ABI
try:
xorg_core = apt_cache['xserver-xorg-core']
except KeyError:
logging.debug('xserver-xorg-core not available, cannot check ABI')
return True
candidate = depcache.get_candidate_ver(xorg_core)
for provides_name, provides_ver, p_version in candidate.provides_list:
if provides_name.startswith('xorg-video-abi-'):
xorg_video_abi = provides_name
if xorg_video_abi:
abi_pkg = apt_cache[xorg_video_abi]
for dep in abi_pkg.rev_depends_list:
if dep.parent_pkg.name == package.name:
return True
logging.debug('Driver package %s is incompatible with current X.org server ABI %s',
package.name, xorg_video_abi)
logging.debug('%s is not in %s' % (package, [x.parent_pkg for x in abi_pkg.rev_depends_list]))
return False
return True
def _apt_cache_modalias_map(apt_cache):
'''Build a modalias map from an apt_pkg.Cache object.
This filters out uninstallable video drivers (i. e. which depend on a video
ABI that xserver-xorg-core does not provide).
Return a map bus -> modalias -> [package, ...], where "bus" is the prefix of
the modalias up to the first ':' (e. g. "pci" or "usb").
'''
depcache = apt_pkg.DepCache(apt_cache)
records = apt_pkg.PackageRecords(apt_cache)
result = {}
for package in apt_cache.packages:
# skip packages without a modalias field
try:
candidate = depcache.get_candidate_ver(package)
records.lookup(candidate.file_list[0])
m = records['Modaliases']
if not m:
continue
except (KeyError, AttributeError, UnicodeDecodeError):
continue
# skip foreign architectures, we usually only want native
# driver packages
if (package.architecture not in ('all', get_apt_arch())):
continue
if not _check_video_abi_compat(apt_cache, package):
continue
try:
for part in m.split(')'):
part = part.strip(', ')
if not part:
continue
module, lst = part.split('(')
for alias in lst.split(','):
alias = alias.strip()
bus = alias.split(':', 1)[0]
result.setdefault(bus, {}).setdefault(alias, set()).add(package.name)
except ValueError:
logging.error('Package %s has invalid modalias header: %s' % (
package.name, m))
result2 = {}
for bus, alias_map in result.items():
pat = re.compile(
'|'.join([fnmatch.translate(pat) for pat in alias_map.keys()]),
re.IGNORECASE)
result2[bus] = (pat, alias_map)
return result2
def path_get_custom_supported_gpus():
return custom_supported_gpus_json
def package_get_nv_allowing_driver(did):
'''Get nvidia allowing driver for specific devices.
did: 0x1234
Return the situable nvidia driver version for it.
'''
path = path_get_custom_supported_gpus()
version = None
try:
with open(path, "r") as stream:
try:
gpus = list(json.load(stream)['chips'])
for gpu in gpus:
if gpu['devid'] == did:
version = gpu['branch'].split('.')[0]
logging.info("Found a specific nv driver version %s for %s(%s)" %
(version, gpu['name'], did))
break
except Exception:
logging.debug('package_get_nv_allowing_driver(): unexpected json detected.')
pass
except Exception:
logging.debug('package_get_nv_allowing_driver(): unable to read %s' % path)
pass
return version
def packages_for_modalias(apt_cache, modalias):
'''Search packages which match the given modalias.
Return a list of apt.Package objects.
'''
pkgs = set()
apt_cache_hash = hash(package.get_fullname() for package in apt_cache.packages)
try:
cache_map = packages_for_modalias.cache_maps[apt_cache_hash]
except KeyError:
cache_map = _apt_cache_modalias_map(apt_cache)
packages_for_modalias.cache_maps[apt_cache_hash] = cache_map
pat, bus_map = cache_map.get(modalias.split(':', 1)[0], (None, {}))
vid, did = _get_vendor_model_from_alias(modalias)
nvamd = None
found = 0
if vid == "10DE":
nvamd = package_get_nv_allowing_driver("0x" + did)
nvamdn = "nvidia-driver-%s" % nvamd
nvamda = "pci:v000010DEd0000%s*" % did
for p in apt_cache.packages:
if p.get_fullname().split(':')[0] == nvamdn:
bus_map[nvamda] = set([nvamdn])
found = 1
if nvamd is not None and not found:
logging.debug('%s is not in the package pool.' % nvamdn)
if not found:
if pat is None or not pat.match(modalias):
return []
for alias in bus_map:
if fnmatch.fnmatchcase(modalias.lower(), alias.lower()):
for p in bus_map[alias]:
pkgs.add(p)
return [apt_cache[p] for p in pkgs]
packages_for_modalias.cache_maps = {}
def _is_package_free(apt_cache, pkg):
depcache = apt_pkg.DepCache(apt_cache)
candidate = depcache.get_candidate_ver(pkg)
assert candidate is not None
# it would be better to check the actual license, as we do not have
# the component for third-party packages; but this is the best we can do
# at the moment
#
# We can assume the NVIDIA packages to be non-free
if pkg.name.startswith('nvidia'):
return False
records = apt_pkg.PackageRecords(apt_cache)
records.lookup(candidate.file_list[0])
for pfile, _ in pkg.version_list[0].file_list:
if not pfile.component:
# This is probably from the test suite
try:
component = records['Component']
return (component not in ('restricted', 'multiverse'))
except KeyError:
return False
else:
if pfile.component in ('restricted', 'multiverse'):
return False
return True
def _is_package_from_distro(apt_cache, pkg):
depcache = apt_pkg.DepCache(apt_cache)
candidate = depcache.get_candidate_ver(pkg)
if candidate is None:
return False
try:
return (candidate.file_list[0][0].origin == 'Ubuntu')
except KeyError:
return False
def _pkg_get_module(apt_cache, pkg):
'''Determine module name from apt Package object'''
depcache = apt_pkg.DepCache(apt_cache)
candidate = depcache.get_candidate_ver(pkg)
records = apt_pkg.PackageRecords(apt_cache)
records.lookup(candidate.file_list[0])
try:
m = records['Modaliases']
except (KeyError, AttributeError):
logging.debug('_pkg_get_module %s: package has no Modaliases header, cannot determine module', pkg.name)
return None
paren = m.find('(')
if paren <= 0:
logging.debug('_pkg_get_module %s: package has invalid Modaliases header, cannot determine module', pkg.name)
return None
module = m[:paren]
return module
def _pkg_get_support(apt_cache, pkg):
'''Determine support level from apt Package object'''
depcache = apt_pkg.DepCache(apt_cache)
candidate = depcache.get_candidate_ver(pkg)
records = apt_pkg.PackageRecords(apt_cache)
records.lookup(candidate.file_list[0])
try:
support = records['Support']
except (KeyError, AttributeError):
logging.debug('_pkg_get_support %s: package has no Support header, cannot determine support level', pkg.name)
return None
if support not in ('PB', 'NFB', 'LTSB', 'Legacy'):
logging.debug('_pkg_get_support %s: package has invalid Support %s'
'header, cannot determine support level', pkg.name, support)
return None
return support
def _is_nv_allowing_runtimepm_supported(alias, ver):
'''alias: e.g. pci:v000010DEd000024BAsv0000103Csd000089C6bc03sc00i00'''
result = re.search('pci:v0000(.*)d0000(.*)sv(.*)', alias)
vid = result.group(1)
did = result.group(2)
if vid != "10DE":
return False
did = "0x%s" % did
path = path_get_custom_supported_gpus()
try:
with open(path, "r") as stream:
try:
gpus = list(json.load(stream)['chips'])
for gpu in gpus:
if gpu['devid'] == did and 'runtimepm' in gpu['features']:
if gpu['branch'].split('.')[0] != ver:
logging.debug('Candidate version does not match %s != %s' %
(gpu['branch'].split('.')[0], ver))
return False
logging.info("Found runtimepm supports on %s." % did)
return True
except Exception:
logging.debug('_is_nv_allowing_runtimepm_supported(): unexpected json detected')
pass
except Exception:
logging.debug('_is_nv_allowing_runtimepm_supported(): unable to read %s' % path)
pass
return False
def _is_runtimepm_supported(apt_cache, pkg, alias):
'''Check if the package supports runtimepm for the given modalias'''
try:
depcache = apt_pkg.DepCache(apt_cache)
candidate = depcache.get_candidate_ver(pkg)
records = apt_pkg.PackageRecords(apt_cache)
records.lookup(candidate.file_list[0])
section = apt_pkg.TagSection(records.record)
ver = candidate.ver_str.split('.')[0]
m = section['PmAliases']
except (KeyError, AttributeError, UnicodeDecodeError):
return False
else:
if m.find('nvidia(') != 0:
return False
n = m[m.find('(')+1: m.find(')')]
modaliases = n.split(', ')
if _is_nv_allowing_runtimepm_supported(alias, ver):
return True
return any(fnmatch.fnmatch(alias.lower(), regex.lower()) for regex in modaliases)
def is_wayland_session():
'''Check if the current session in on Wayland'''
return os.environ.get('WAYLAND_DISPLAY') is not None
def _is_manual_install(apt_cache, pkg):
'''Determine if the kernel module from an apt.Package is manually installed.'''
if pkg.current_ver:
return False
# special case, as our packages suffix the kmod with _version
if pkg.name.startswith('nvidia'):
module = 'nvidia'
elif pkg.name.startswith('fglrx'):
module = 'fglrx'
else:
module = _pkg_get_module(apt_cache, pkg)
if not module:
return False
try:
modinfo = subprocess.Popen(['modinfo', module], stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
modinfo.communicate()
except (OSError, FileNotFoundError, subprocess.CalledProcessError) as e:
logging.debug('_is_manual_install failed: %s', str(e))
return False
else:
if modinfo.returncode == 0:
logging.debug('_is_manual_install %s: builds module %s which is available, manual install',
pkg.name, module)
return True
logging.debug('_is_manual_install %s: builds module %s which is not available, no manual install',
pkg.name, module)
return False
def _get_db_name(syspath, alias):
'''Return (vendor, model) names for given device.
Values are None if unknown.
'''
try:
out = subprocess.check_output(['udevadm', 'hwdb', '--test=' + alias],
universal_newlines=True)
except (OSError, subprocess.CalledProcessError) as e:
logging.debug('_get_db_name(%s, %s): udevadm hwdb failed: %s', syspath, alias, str(e))
return (None, None)
logging.debug('_get_db_name: output\n%s\n', out)
vendor = None
model = None
for line in out.splitlines():
(k, v) = line.split('=', 1)
if '_VENDOR' in k:
vendor = v
if '_MODEL' in k:
model = v
logging.debug('_get_db_name(%s, %s): vendor "%s", model "%s"', syspath,
alias, vendor, model)
return (vendor, model)
def set_nvidia_kms(value):
'''Set KMS on or off for NVIDIA'''
nvidia_kms_file = '/lib/modprobe.d/nvidia-kms.conf'
kms_text = '''# This file was generated by ubuntu-drivers
# Set value to 1 to enable modesetting, 0 to disable it
options nvidia-drm modeset=%d\n''' % (value)
kms_fd = open(nvidia_kms_file, 'w')
kms_fd.write(kms_text)
kms_fd.close()
def system_driver_packages(apt_cache=None, sys_path=None, freeonly=False, include_oem=True):
'''Get driver packages that are available for the system.
This calls system_modaliases() to determine the system's hardware and then
queries apt about which packages provide drivers for those. It also adds
available packages from detect_plugin_packages().
If you already have an apt_pkg.Cache() object, you should pass it as an
argument for efficiency. If not given, this function creates a temporary
one by itself.
If freeonly is set to True, only free packages (from main and universe) are
considered
Return a dictionary which maps package names to information about them:
driver_package → {'modalias': 'pci:...', ...}
Available information keys are:
'modalias': Modalias for the device that needs this driver (not for
drivers from detect plugins)
'syspath': sysfs directory for the device that needs this driver
(not for drivers from detect plugins)
'plugin': Name of plugin that detected this package (only for
drivers from detect plugins)
'free': Boolean flag whether driver is free, i. e. in the "main"
or "universe" component.
'from_distro': Boolean flag whether the driver is shipped by the distro;
if not, it comes from a (potentially less tested/trusted)
third party source.
'vendor': Human readable vendor name, if available.
'model': Human readable product name, if available.
'recommended': Some drivers (nvidia, fglrx) come in multiple variants and
versions; these have this flag, where exactly one has
recommended == True, and all others False.
'''
global lookup_cache
modaliases = system_modaliases(sys_path)
if not apt_cache:
try:
apt_cache = apt_pkg.Cache(None)
except Exception as ex:
logging.error(ex)
return {}
packages = {}
for alias, syspath in modaliases.items():
for p in packages_for_modalias(apt_cache, alias):
if freeonly and not _is_package_free(apt_cache, p):
continue
if not include_oem and fnmatch.fnmatch(p.name, 'oem-*-meta'):
continue
packages[p.name] = {
'modalias': alias,
'syspath': syspath,
'free': _is_package_free(apt_cache, p),
'from_distro': _is_package_from_distro(apt_cache, p),
'support': _pkg_get_support(apt_cache, p),
'runtimepm': _is_runtimepm_supported(apt_cache, p, alias)
}
(vendor, model) = _get_db_name(syspath, alias)
if vendor is not None:
packages[p.name]['vendor'] = vendor
if model is not None:
packages[p.name]['model'] = model
# Add "recommended" flags for NVidia alternatives
nvidia_packages = [p for p in packages if p.startswith('nvidia-')]
if nvidia_packages:
# Create a cache for looking up drivers to pick the best
# candidate
for key, value in packages.items():
if key.startswith('nvidia-'):
lookup_cache[key] = value
nvidia_packages.sort(key=functools.cmp_to_key(_cmp_gfx_alternatives))
recommended = nvidia_packages[-1]
for p in nvidia_packages:
packages[p]['recommended'] = (p == recommended)
# add available packages which need custom detection code
for plugin, pkgs in detect_plugin_packages(apt_cache).items():
for p in pkgs:
try:
apt_p = apt_cache[p]
packages[p] = {
'free': _is_package_free(apt_cache, apt_p),
'from_distro': _is_package_from_distro(apt_cache, apt_p),
'plugin': plugin,
}
except KeyError:
logging.debug('Package %s plugin not available. Skipping.' % p)
return packages
def _get_vendor_model_from_alias(alias):
modalias_pattern = re.compile('(.+):v(.+)d(.+)sv(.+)sd(.+)bc(.+)i.*')
details = modalias_pattern.match(alias)
if details:
return (details.group(2)[4:], details.group(3)[4:])
return (None, None)
def get_userspace_lrm_meta(apt_cache, pkg_name):
assert pkg_name is not None
metapackage = None
'''Return nvidia-driver-lrm-$flavour metapackage from the main metapackage.
This is useful to see whether any such package is available.
'''
depcache = apt_pkg.DepCache(apt_cache)
nvidia_info = NvidiaPkgNameInfo(pkg_name)
if not nvidia_info.is_valid:
logging.debug('Unsupported driver detected: %s. Skipping' % pkg_name)
return metapackage
if nvidia_info.has_obsolete_name_scheme():
logging.debug('Legacy driver detected: %s. Skipping.' % pkg_name)
return metapackage
candidate_flavour = nvidia_info.get_flavour()
candidate = 'nvidia-driver-lrm-%s' % (candidate_flavour)
try:
package = apt_cache[candidate]
# skip foreign architectures, we usually only want native
# driver packages
package_candidate = depcache.get_candidate_ver(package)
if (candidate and
package_candidate.arch in ('all', get_apt_arch())):
metapackage = candidate
except KeyError:
pass
return metapackage
def _get_headless_no_dkms_metapackage(pkg, apt_cache):
assert pkg is not None
metapackage = None
'''Return headless-no-dkms metapackage from the main metapackage.
This is useful when dealing with packages such as nvidia-driver-$flavour
whose headless-no-dkms metapackage would be nvidia-headless-no-dkms-$flavour
'''
depcache = apt_pkg.DepCache(apt_cache)
name = pkg.name
nvidia_info = NvidiaPkgNameInfo(name)
if not nvidia_info.is_valid:
logging.debug('Unsupported driver detected: %s. Skipping' % name)
return metapackage
if nvidia_info.has_obsolete_name_scheme():
logging.debug('Legacy driver detected: %s. Skipping.' % name)
return metapackage
candidate_flavour = nvidia_info.get_flavour()
candidate = 'nvidia-headless-no-dkms-%s' % (candidate_flavour)
try:
package = apt_cache[candidate]
# skip foreign architectures, we usually only want native
# driver packages
package_candidate = depcache.get_candidate_ver(package)
if (candidate and
package_candidate.arch in ('all', get_apt_arch())):
metapackage = candidate
except KeyError:
pass
return metapackage
def system_device_specific_metapackages(apt_cache=None, sys_path=None, include_oem=True):
'''Get device specific metapackages for this system
This calls system_modaliases() to determine the system's hardware and then
queries apt about which packages provide hardware enablement support for
those.
If you already have an apt_pkg.Cache() object, you should pass it as an
argument for efficiency. If not given, this function creates a temporary
one by itself.
Return a dictionary which maps package names to information about them:
driver_package → {'modalias': 'pci:...', ...}
Available information keys are:
'modalias': Modalias for the device that needs this driver (not for
drivers from detect plugins)
'syspath': sysfs directory for the device that needs this driver
(not for drivers from detect plugins)
'plugin': Name of plugin that detected this package (only for
drivers from detect plugins)
'free': Boolean flag whether driver is free, i. e. in the "main"
or "universe" component.
'from_distro': Boolean flag whether the driver is shipped by the distro;
if not, it comes from a (potentially less tested/trusted)
third party source.
'vendor': Human readable vendor name, if available.
'model': Human readable product name, if available.
'recommended': Always True; we always recommend you install these
packages.
'''
if not include_oem:
return {}
modaliases = system_modaliases(sys_path)
if not apt_cache:
try:
apt_cache = apt_pkg.Cache(None)
except Exception as ex:
logging.error(ex)
return {}
packages = {}
for alias, syspath in modaliases.items():
for p in packages_for_modalias(apt_cache, alias):
if not fnmatch.fnmatch(p.name, 'oem-*-meta'):
continue
packages[p.name] = {
'modalias': alias,
'syspath': syspath,
'free': _is_package_free(apt_cache, p),
'from_distro': _is_package_from_distro(apt_cache, p),
'recommended': True,
'support': _pkg_get_support(apt_cache, p),
}
return packages
def system_gpgpu_driver_packages(apt_cache=None, sys_path=None):
'''Get driver packages, for gpgpu purposes, that are available for the system.
This calls system_modaliases() to determine the system's hardware and then
queries apt about which packages provide drivers for those. Finally, it looks
for the correct metapackage, by calling _get_headless_no_dkms_metapackage().
If you already have an apt_pkg.Cache() object, you should pass it as an
argument for efficiency. If not given, this function creates a temporary
one by itself.
Return a dictionary which maps package names to information about them:
driver_package → {'modalias': 'pci:...', ...}
Available information keys are:
'modalias': Modalias for the device that needs this driver (not for
drivers from detect plugins)
'syspath': sysfs directory for the device that needs this driver
(not for drivers from detect plugins)
'plugin': Name of plugin that detected this package (only for
drivers from detect plugins)
'free': Boolean flag whether driver is free, i. e. in the "main"
or "universe" component.
'from_distro': Boolean flag whether the driver is shipped by the distro;
if not, it comes from a (potentially less tested/trusted)
third party source.
'vendor': Human readable vendor name, if available.
'model': Human readable product name, if available.
'recommended': Some drivers (nvidia, fglrx) come in multiple variants and
versions; these have this flag, where exactly one has
recommended == True, and all others False.
'''
global lookup_cache
vendors_whitelist = ['10de']
modaliases = system_modaliases(sys_path)
if not apt_cache:
try:
apt_cache = apt_pkg.Cache(None)
except Exception as ex:
logging.error(ex)
return {}
packages = {}
for alias, syspath in modaliases.items():
for p in packages_for_modalias(apt_cache, alias):
(vendor, model) = _get_db_name(syspath, alias)
vendor_id, model_id = _get_vendor_model_from_alias(alias)
if (vendor_id is not None) and (vendor_id.lower() in vendors_whitelist):
packages[p.name] = {
'modalias': alias,
'syspath': syspath,
'free': _is_package_free(apt_cache, p),
'from_distro': _is_package_from_distro(apt_cache, p),
'support': _pkg_get_support(apt_cache, p),
}
if vendor is not None:
packages[p.name]['vendor'] = vendor
if model is not None:
packages[p.name]['model'] = model
metapackage = _get_headless_no_dkms_metapackage(p, apt_cache)
if metapackage is not None:
packages[p.name]['metapackage'] = metapackage
# Add "recommended" flags for NVidia alternatives
nvidia_packages = [p for p in packages if p.startswith('nvidia-')]
if nvidia_packages:
# Create a cache for looking up drivers to pick the best
# candidate
for key, value in packages.items():
if key.startswith('nvidia-'):
lookup_cache[key] = value
nvidia_packages.sort(key=functools.cmp_to_key(_cmp_gfx_alternatives_gpgpu))
recommended = nvidia_packages[-1]
for p in nvidia_packages:
packages[p]['recommended'] = (p == recommended)
return packages
def system_device_drivers(apt_cache=None, sys_path=None, freeonly=False):
'''Get by-device driver packages that are available for the system.
This calls system_modaliases() to determine the system's hardware and then
queries apt about which packages provide drivers for each of those. It also
adds available packages from detect_plugin_packages(), using the name of
the detction plugin as device name.
If you already have an apt_pkg.Cache() object, you should pass it as an
argument for efficiency. If not given, this function creates a temporary
one by itself.
If freeonly is set to True, only free packages (from main and universe) are
considered
Return a dictionary which maps devices to available drivers:
device_name → {'modalias': 'pci:...', <device info>,
'drivers': {'pkgname': {<driver package info>}}
A key (device name) is either the sysfs path (for drivers detected through
modaliases) or the detect plugin name (without the full path).
Available keys in <device info>:
'modalias': Modalias for the device that needs this driver (not for
drivers from detect plugins)
'vendor': Human readable vendor name, if available.
'model': Human readable product name, if available.
'drivers': Driver package map for this device, see below. Installing any
of the drivers in that map will make this particular
device work. The keys are the package names of the driver
packages; note that this can be an already installed
default package such as xserver-xorg-video-nouveau which
provides a free alternative to the proprietary NVidia
driver; these will have the 'builtin' flag set.
'manual_install':
None of the driver packages are installed, but the kernel
module that it provides is available; this usually means
that the user manually installed the driver from upstream.
Aavailable keys in <driver package info>:
'builtin': The package is shipped by default in Ubuntu and MUST
NOT be uninstalled. This usually applies to free
drivers like xserver-xorg-video-nouveau.
'free': Boolean flag whether driver is free, i. e. in the "main"
or "universe" component.
'from_distro': Boolean flag whether the driver is shipped by the distro;
if not, it comes from a (potentially less tested/trusted)
third party source.
'recommended': Some drivers (nvidia, fglrx) come in multiple variants and
versions; these have this flag, where exactly one has
recommended == True, and all others False.
'''
result = {}
if not apt_cache:
try:
apt_cache = apt_pkg.Cache(None)
except Exception as ex:
logging.error(ex)
return {}
# copy the system_driver_packages() structure into the by-device structure
for pkg, pkginfo in system_driver_packages(apt_cache, sys_path,
freeonly=freeonly).items():
if 'syspath' in pkginfo:
device_name = pkginfo['syspath']
else:
device_name = pkginfo['plugin']
result.setdefault(device_name, {})
for opt_key in ('modalias', 'vendor', 'model'):
if opt_key in pkginfo:
result[device_name][opt_key] = pkginfo[opt_key]
drivers = result[device_name].setdefault('drivers', {})
drivers[pkg] = {'free': pkginfo['free'], 'from_distro': pkginfo['from_distro']}
if 'recommended' in pkginfo:
drivers[pkg]['recommended'] = pkginfo['recommended']
# now determine the manual_install device flag: this is true iff all driver
# packages are "manually installed"
for driver, info in result.items():
for pkg in info['drivers']:
if not _is_manual_install(apt_cache, apt_cache[pkg]):
break
else:
info['manual_install'] = True
# add OS builtin free alternatives to proprietary drivers
_add_builtins(result)
return result
def get_desktop_package_list(apt_cache, sys_path=None, free_only=False, include_oem=True, driver_string=''):
'''Return the list of packages that should be installed'''
packages = system_driver_packages(
apt_cache, sys_path, freeonly=free_only,
include_oem=include_oem)
packages = auto_install_filter(packages, driver_string)
if not packages:
logging.debug('No drivers found for installation.')
return packages
depcache = apt_pkg.DepCache(apt_cache)
records = apt_pkg.PackageRecords(apt_cache)
# ignore packages which are already installed
to_install = []
for p in packages:
package_obj = apt_cache[p]
if not package_obj.current_ver:
to_install.append(p)
candidate = depcache.get_candidate_ver(package_obj)
records.lookup(candidate.file_list[0])
# See if runtimepm is supported
if records['runtimepm']:
# Create a file for nvidia-prime
try:
pm_fd = open('/run/nvidia_runtimepm_supported', 'w')
pm_fd.write('\n')
pm_fd.close()
except PermissionError:
# No need to error out here, since package
# installation will fail
pass
# Add the matching linux modules package when available
try:
modules_package = get_linux_modules_metapackage(apt_cache, p)
if modules_package and not apt_cache[modules_package].current_ver:
to_install.append(modules_package)
lrm_meta = get_userspace_lrm_meta(apt_cache, p)
if lrm_meta and not apt_cache[lrm_meta].current_ver:
# Add the lrm meta and drop the non lrm one
to_install.append(lrm_meta)
to_install.remove(p)
except KeyError:
pass
return to_install
def nvidia_desktop_pre_installation_hook(to_install):
'''Applies changes that need to happen before installing the NVIDIA drivers'''
# Enable KMS if nvidia >= 470
for package_name in to_install:
nvidia_info = NvidiaPkgNameInfo(package_name)
if nvidia_info.get_major_version() >= 470:
set_nvidia_kms(1)
return
def nvidia_desktop_post_installation_hook():
# If we are dealing with NVIDIA PRIME, and runtimepm
# is supported, enable it
if os.path.isfile('/run/nvidia_runtimepm_supported'):
logging.debug('Trying to select the on-demand PRIME profile')
try:
subprocess.call(['/usr/bin/prime-select', 'on-demand'])
except FileNotFoundError:
pass
# Create the override file for gpu-manager
with open('/etc/u-d-c-nvidia-runtimepm-override', 'w') as f:
f.write('# File created by ubuntu-drivers\n')
class _GpgpuDriver(object):
def __init__(self, vendor=None, flavour=None):
self._vendors_whitelist = ('nvidia',)
self.vendor = vendor
self.flavour = flavour
def is_valid(self):
if self.vendor:
# Filter the allowed vendors
if not fnmatch.filter(self._vendors_whitelist, self.vendor):
return False
return not (not self.vendor and not self.flavour)
def _process_driver_string(string):
'''Returns a _GpgpuDriver object'''
driver = _GpgpuDriver()
full_pattern = re.compile('(.+):([0-9]+)(.*)')
vendor_only_pattern = re.compile('([a-z]+)')
series_only_pattern = re.compile('([0-9]+)(.*)')
full_match = full_pattern.match(string)
vendor_match = vendor_only_pattern.match(string)
series_match = series_only_pattern.match(string)
if full_match:
driver.vendor = full_match.group(1)
driver.flavour = '%s%s' % (full_match.group(2), full_match.group(3))
elif vendor_match:
driver.vendor = string
elif series_match:
driver.flavour = '%s%s' % (series_match.group(1), series_match.group(2))
return driver
def gpgpu_install_filter(packages, drivers_str):
drivers = []
allow = []
result = {}
'''Filter the Ubuntu packages according to the parameters the users passed
Ubuntu-drivers syntax
ubuntu-drivers autoinstall --gpgpu [[driver:]version]
ubuntu-drivers autoinstall --gpgpu driver[:version][,driver[:version]]
If no version is specified, gives the “current” supported version for the GPU in question.
Examples:
ubuntu-drivers autoinstall --gpgpu
ubuntu-drivers autoinstall --gpgpu 390
ubuntu-drivers autoinstall --gpgpu nvidia:390
Today this is only nvidia. In the future there may be amdgpu-pro.
Possible syntax, to be confirmed only once there are driver packages that could use it:
ubuntu-drivers autoinstall --gpgpu nvidia:390,amdgpu
ubuntu-drivers autoinstall --gpgpu amdgpu:version
'''
if not packages:
return result
if drivers_str:
# Just one driver
# e.g. --gpgpu 390
# --gpgpu nvidia:390
#
# Or Multiple drivers
# e.g. --gpgpu nvidia:390,amdgpu
for item in drivers_str.split(','):
driver = _process_driver_string(item)
if driver and driver.is_valid():
drivers.append(driver)
else:
# No args, just --gpgpu
driver = _GpgpuDriver()
drivers.append(driver)
if len(drivers) < 1:
return result
# If the vendor is not specified, we assume it's nvidia
it = 0
for driver in drivers:
if not driver.vendor:
drivers[it].vendor = 'nvidia'
it += 1
# Do not allow installing multiple versions of the nvidia driver
it = 0
vendors_temp = []
for driver in drivers:
vendor = driver.vendor
if vendors_temp.__contains__(vendor):
# TODO: raise error here
logging.debug('Multiple nvidia versions passed at the same time')
return result
vendors_temp.append(vendor)
it += 1
# If the flavour is not specified, we assume it's nvidia,
# and we install the newest driver
it = 0
for driver in drivers:
if not driver.flavour and not driver.vendor:
drivers[it].vendor = 'nvidia'
it += 1
# Filter the packages
# any package which matches any of those globs will be accepted
for driver in drivers:
if driver.flavour:
pattern = '%s*%s' % (driver.vendor, driver.flavour)
else:
pattern = '%s*' % (driver.vendor)
allow.extend(fnmatch.filter(packages, pattern))
# print(allow)
# FIXME: if no flavour is specified, pick the recommended driver ?
# print('packages: %s' % packages)
for p in allow:
# If the version was specified, we override the recommended attribute
for driver in drivers:
if p.__contains__(driver.vendor):
if driver.flavour:
# print('Found "%s" flavour in %s' % (driver.flavour, packages[p]))
result[p] = packages[p]
else:
# print('before recommended: %s' % packages[p])
if packages[p].get('recommended'):
result[p] = packages[p]
# print('Found "recommended" flavour in %s' % (packages[p]))
break
return result
def auto_install_filter(packages, drivers_str=''):
'''Get packages which are appropriate for automatic installation.
Return the subset of the given list of packages which are appropriate for
automatic installation by the installer. This applies to e. g. the Broadcom
Wifi driver (as there is no alternative), but not to the FGLRX proprietary
graphics driver (as the free driver works well and FGLRX does not provide
KMS).
'''
# any package which matches any of those globs will be accepted
whitelist = ['bcmwl*', 'pvr-omap*', 'virtualbox-guest*', 'nvidia-*',
'open-vm-tools*', 'oem-*-meta', 'broadcom-sta-dkms']
# If users specify a driver, use gpgpu_install_filter()
if drivers_str:
results = gpgpu_install_filter(packages, drivers_str)
return results
allow = []
for pattern in whitelist:
allow.extend(fnmatch.filter(packages, pattern))
result = {}
for p in allow:
if 'recommended' not in packages[p] or packages[p]['recommended']:
result[p] = packages[p]
return result
def detect_plugin_packages(apt_cache=None):
'''Get driver packages from custom detection plugins.
Some driver packages cannot be identified by modaliases, but need some
custom code for determining whether they apply to the system. Read all *.py
files in /usr/share/ubuntu-drivers-common/detect/ or
$UBUNTU_DRIVERS_DETECT_DIR and call detect(apt_cache) on them. Filter the
returned lists for packages which are available for installation, and
return the joined results.
If you already have an existing apt_pkg.Cache() object, you can pass it as an
argument for efficiency.
Return pluginname -> [package, ...] map.
'''
packages = {}
plugindir = os.environ.get('UBUNTU_DRIVERS_DETECT_DIR',
'/usr/share/ubuntu-drivers-common/detect/')
if not os.path.isdir(plugindir):
logging.debug('Custom detection plugin directory %s does not exist', plugindir)
return packages
if apt_cache is None:
try:
apt_cache = apt_pkg.Cache(None)
except Exception as ex:
logging.error(ex)
return {}
for fname in os.listdir(plugindir):
if not fname.endswith('.py'):
continue
plugin = os.path.join(plugindir, fname)
logging.debug('Loading custom detection plugin %s', plugin)
symb = {}
with open(plugin) as f:
try:
exec(compile(f.read(), plugin, 'exec'), symb)
result = symb['detect'](apt_cache)
logging.debug('plugin %s return value: %s', plugin, result)
except Exception:
logging.exception('plugin %s failed:', plugin)
continue
if result is None:
continue
if type(result) not in (list, set):
logging.error('plugin %s returned a bad type %s (must be list or set)', plugin, type(result))
continue
for pkg in result:
try:
package = apt_cache[pkg]
if _check_video_abi_compat(apt_cache, package):
packages.setdefault(fname, []).append(pkg)
except KeyError:
logging.debug('Ignoring unavailable package %s from plugin %s', pkg, plugin)
return packages
def _pkg_support_from_cache(x):
'''Look up driver package and return their support level'''
if lookup_cache.get(x):
return lookup_cache.get(x).get('support')
return None
def _cmp_gfx_alternatives(x, y):
'''Compare two graphics driver names in terms of preference. (desktop)
-open always sorts after non-open.
-server always sorts after non-server.
LTSB (Long Term Support Branch) always sorts before NFB (New Feature Branch).
Legacy always sorts before Beta.
'''
if x.endswith('-open') and not y.endswith('-open'):
return -1
if not x.endswith('-open') and y.endswith('-open'):
return 1
if x.endswith('-server') and not y.endswith('-server'):
return -1
if not x.endswith('-server') and y.endswith('-server'):
return 1
preferred_support = ['PB', 'LTSB']
x_score = 0
y_score = 0
x_support = _pkg_support_from_cache(x)
y_support = _pkg_support_from_cache(y)
if x_support in preferred_support:
x_score += 100
if y_support in preferred_support:
y_score += 100
if x > y:
x_score += 1
elif x < y:
y_score += 1
if ((x_score >= 100) or (y_score >= 100)):
if x_score > y_score:
return 1
elif x_score < y_score:
return -1
if _pkg_support_from_cache(x) == 'PB' and _pkg_support_from_cache(y) != 'PB':
return 1
if _pkg_support_from_cache(x) != 'PB' and _pkg_support_from_cache(y) == 'PB':
return -1
if _pkg_support_from_cache(x) == 'LTSB' and _pkg_support_from_cache(y) != 'LTSB':
return 1
if _pkg_support_from_cache(x) != 'LTSB' and _pkg_support_from_cache(y) == 'LTSB':
return -1
if _pkg_support_from_cache(x) == 'Legacy' and _pkg_support_from_cache(y) != 'Legacy':
return -1
if _pkg_support_from_cache(x) != 'Legacy' and _pkg_support_from_cache(y) == 'Legacy':
return 1
if _pkg_support_from_cache(x) == 'Beta' and _pkg_support_from_cache(y) != 'Beta':
return -1
if _pkg_support_from_cache(x) != 'Beta' and _pkg_support_from_cache(y) == 'Beta':
return 1
if x < y:
return -1
if x > y:
return 1
assert x == y
return 0
def _cmp_gfx_alternatives_gpgpu(x, y):
'''Compare two graphics driver names in terms of preference. (server)
-open always sorts after non-open.
-server always sorts before non-server.
LTSB (Long Term Support Branch) always sorts before NFB (New Feature Branch).
Legacy always sorts before Beta.
'''
if x.endswith('-open') and not y.endswith('-open'):
return -1
if not x.endswith('-open') and y.endswith('-open'):
return 1
if x.endswith('-server') and not y.endswith('-server'):
return 1
if not x.endswith('-server') and y.endswith('-server'):
return -1
if _pkg_support_from_cache(x) == 'PB' and _pkg_support_from_cache(y) != 'PB':
return 1
if _pkg_support_from_cache(x) != 'PB' and _pkg_support_from_cache(y) == 'PB':
return -1
if _pkg_support_from_cache(x) == 'LTSB' and _pkg_support_from_cache(y) != 'LTSB':
return 1
if _pkg_support_from_cache(x) != 'LTSB' and _pkg_support_from_cache(y) == 'LTSB':
return -1
if _pkg_support_from_cache(x) == 'Legacy' and _pkg_support_from_cache(y) != 'Legacy':
return -1
if _pkg_support_from_cache(x) != 'Legacy' and _pkg_support_from_cache(y) == 'Legacy':
return 1
if _pkg_support_from_cache(x) == 'Beta' and _pkg_support_from_cache(y) != 'Beta':
return -1
if _pkg_support_from_cache(x) != 'Beta' and _pkg_support_from_cache(y) == 'Beta':
return 1
if x < y:
return -1
if x > y:
return 1
assert x == y
return 0
def _add_builtins(drivers):
'''Add builtin driver alternatives'''
for device, info in drivers.items():
for pkg in info['drivers']:
# Nouveau is still not good enough, keep recommending the
# proprietary driver
if pkg.startswith('nvidia'):
info['drivers']['xserver-xorg-video-nouveau'] = {
'free': True, 'builtin': True, 'from_distro': True, 'recommended': False}
break
# These days the free driver is working well enough, so recommend
# it
if pkg.startswith('fglrx'):
for d in info['drivers']:
info['drivers'][d]['recommended'] = False
info['drivers']['xserver-xorg-video-ati'] = {
'free': True, 'builtin': True, 'from_distro': True, 'recommended': True}
break
def get_linux_headers(apt_cache):
'''Return the linux headers for the system's kernel'''
kernel_detection = kerneldetection.KernelDetection(apt_cache)
return kernel_detection.get_linux_headers_metapackage()
def get_linux_image(apt_cache):
'''Return the linux image for the system's kernel'''
kernel_detection = kerneldetection.KernelDetection(apt_cache)
return kernel_detection.get_linux_image_metapackage()
def get_linux_version(apt_cache):
'''Return the linux image for the system's kernel'''
kernel_detection = kerneldetection.KernelDetection(apt_cache)
return kernel_detection.get_linux_version()
def get_linux(apt_cache):
'''Return the linux metapackage for the system's kernel'''
kernel_detection = kerneldetection.KernelDetection(apt_cache)
return kernel_detection.get_linux_metapackage()
def get_linux_image_from_meta(apt_cache, pkg):
depcache = apt_pkg.DepCache(apt_cache)
try:
candidate = depcache.get_candidate_ver(apt_cache[pkg])
except KeyError:
logging.debug('No candidate for %s found' % pkg)
return None
try:
for dep_list in candidate.depends_list_str.get('Depends'):
for dep_name, dep_ver, dep_op in dep_list:
if dep_name.startswith('linux-image-'):
return dep_name
except (KeyError, TypeError):
logging.debug('Could not check dependencies for %s package' % (pkg))
# if apt_cache[pkg].candidate:
# record = apt_cache[pkg].candidate.record
# try:
# deps = record['Depends']
# except KeyError:
# return None
# deps_list = deps.strip().split(', ')
# for dep in deps_list:
# if dep.startswith('linux-image-'):
# return dep
return None
def get_linux_modules_metapackage(apt_cache, candidate):
'''Return the linux-modules-$driver metapackage for the system's kernel'''
assert candidate is not None
metapackage = None
linux_flavour = ''
linux_modules_match = ''
depcache = apt_pkg.DepCache(apt_cache)
nvidia_info = NvidiaPkgNameInfo(candidate)
if not nvidia_info.is_valid:
logging.debug('Non NVIDIA linux-modules packages are not supported at this time: %s. Skipping' % candidate)
return metapackage
if nvidia_info.has_obsolete_name_scheme():
logging.debug('Legacy driver detected: %s. Skipping.' % candidate)
return metapackage
linux_image_meta = get_linux_image(apt_cache)
# Check the actual image package, and find the flavour from there
linux_image = get_linux_image_from_meta(apt_cache, linux_image_meta)
if linux_image:
linux_flavour = linux_image.replace('linux-image-', '')
else:
logging.debug('No linux-image can be found for %s. Skipping.' % candidate)
return metapackage
candidate_flavour = nvidia_info.get_flavour()
linux_modules_candidate = 'linux-modules-nvidia-%s-%s' % (candidate_flavour, linux_flavour)
try:
package = apt_cache[linux_modules_candidate]
# skip foreign architectures, we usually only want native
package_candidate = depcache.get_candidate_ver(package)
if (package_candidate and package_candidate.arch in ('all', get_apt_arch())):
linux_version = get_linux_version(apt_cache)
linux_modules_abi_candidate = 'linux-modules-nvidia-%s-%s' % (candidate_flavour, linux_version)
logging.debug('linux_modules_abi_candidate: %s' % (linux_modules_abi_candidate))
# Let's check if there is a candidate that is specific to
# our kernel ABI. If not, things will fail.
abi_specific = apt_cache[linux_modules_abi_candidate]
# skip foreign architectures, we usually only want native
abi_specific_candidate = depcache.get_candidate_ver(abi_specific)
if (abi_specific_candidate and
abi_specific_candidate.arch in ('all', get_apt_arch())):
logging.debug('Found ABI compatible %s' % (linux_modules_abi_candidate))
linux_modules_match = linux_modules_candidate
except KeyError:
logging.debug('No "%s" can be found.', linux_modules_candidate)
pass
# Add an extra layer of paranoia, and check the availability
# of modules with the correct ABI
if linux_modules_match:
# Look for the metapackage in the reverse
# dependencies
reverse_deps = [dep.parent_pkg.name for dep in apt_cache[linux_modules_match].rev_depends_list
if dep.parent_pkg.name.startswith('linux-modules-nvidia-')]
pick = ''
modules_candidate = 'linux-modules-nvidia-%s-%s' % (candidate_flavour,
get_linux_image(apt_cache).replace('linux-image-', ''))
for dep in reverse_deps:
if dep == modules_candidate:
pick = dep
if pick:
metapackage = pick
return metapackage
# If no linux-modules-nvidia package is available for the current kernel
# we should install the relevant DKMS package
dkms_package = 'nvidia-dkms-%s' % candidate_flavour
logging.debug('Falling back to %s' % (dkms_package))
try:
package = apt_cache[dkms_package]
package_candidate = depcache.get_candidate_ver(package)
# skip foreign architectures, we usually only want native
if (package_candidate and
package_candidate.arch in ('all', get_apt_arch())):
metapackage = dkms_package
except KeyError:
logging.error('No "%s" can be found.', dkms_package)
pass
return metapackage
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