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__init__.py000064400000000000150516642640006654 0ustar00nettool.py000064400000013106150516642640006614 0ustar00__all__ = ["ethcard"]

import tuned.logs
from subprocess import *
import re

log = tuned.logs.get()

class Nettool:

	_advertise_values = { # [ half, full ]
		10 : [ 0x001, 0x002 ],
		100 : [ 0x004, 0x008 ],
		1000 : [ 0x010, 0x020 ],
		2500 : [ 0, 0x8000 ], 
		10000 : [ 0, 0x1000 ],
		"auto" : 0x03F
	}

	_disabled = False

	def __init__(self, interface):
		self._interface = interface;
		self.update()

		log.debug("%s: speed %s, full duplex %s, autoneg %s, link %s" % (interface, self.speed, self.full_duplex, self.autoneg, self.link)) 
		log.debug("%s: supports: autoneg %s, modes %s" % (interface, self.supported_autoneg, self.supported_modes))
		log.debug("%s: advertises: autoneg %s, modes %s" % (interface, self.advertised_autoneg, self.advertised_modes))

#	def __del__(self):
#		if self.supported_autoneg:
#			self._set_advertise(self._advertise_values["auto"])

	def _clean_status(self):
		self.speed = 0
		self.full_duplex = False
		self.autoneg = False
		self.link = False

		self.supported_modes = []
		self.supported_autoneg = False

		self.advertised_modes = []
		self.advertised_autoneg = False

	def _calculate_mode(self, modes):
		mode = 0;
		for m in modes:
			mode += self._advertise_values[m[0]][ 1 if m[1] else 0 ]

		return mode

	def _set_autonegotiation(self, enable):
		if self.autoneg == enable:
			return True

		if not self.supported_autoneg:
			return False

		return 0 == call(["ethtool", "-s", self._interface, "autoneg", "on" if enable else "off"], close_fds=True)

	def _set_advertise(self, value):
		if not self._set_autonegotiation(True):
			return False

		return 0 == call(["ethtool", "-s", self._interface, "advertise", "0x%03x" % value], close_fds=True)

	def get_max_speed(self):
		max = 0
		for mode in self.supported_modes:
			if mode[0] > max: max = mode[0]

		if max > 0:
			return max
		else:
			return 1000

	def set_max_speed(self):
		if self._disabled or not self.supported_autoneg:
			return False

		#if self._set_advertise(self._calculateMode(self.supported_modes)):
		if self._set_advertise(self._advertise_values["auto"]):
			self.update()
			return True
		else:
			return False

	def set_speed(self, speed):
		if self._disabled or not self.supported_autoneg:
			return False

		mode = 0
		for am in self._advertise_values:
			if am == "auto": continue
			if am <= speed:
				mode += self._advertise_values[am][0];
				mode += self._advertise_values[am][1];

		effective_mode = mode & self._calculate_mode(self.supported_modes)

		log.debug("%s: set_speed(%d) - effective_mode 0x%03x" % (self._interface, speed, effective_mode))

		if self._set_advertise(effective_mode):
			self.update()
			return True
		else:
			return False

	def update(self):
		if self._disabled:
			return

		# run ethtool and preprocess output

		p_ethtool = Popen(["ethtool", self._interface], \
				stdout=PIPE, stderr=PIPE, close_fds=True, \
				universal_newlines = True)
		p_filter = Popen(["sed", r"s/^\s*//;s/:\s*/:\n/g"], \
				stdin=p_ethtool.stdout, stdout=PIPE, \
				universal_newlines = True, \
				close_fds=True)

		output = p_filter.communicate()[0]
		errors = p_ethtool.communicate()[1]

		if errors != "":
			log.warning("%s: some errors were reported by 'ethtool'" % self._interface)
			log.debug("%s: %s" % (self._interface, errors.replace("\n", r"\n")))
			self._clean_status()
			self._disabled = True
			return

		# parses output - kind of FSM

		self._clean_status()

		re_speed = re.compile(r"(\d+)")
		re_mode = re.compile(r"(\d+)baseT/(Half|Full)")

		state = "wait"

		for line in output.split("\n"):

			if line.endswith(":"):
				section = line[:-1]
				if section == "Speed": state = "speed"
				elif section == "Duplex": state = "duplex"
				elif section == "Auto-negotiation": state = "autoneg"
				elif section == "Link detected": state = "link"
				elif section == "Supported link modes": state = "supported_modes"
				elif section == "Supports auto-negotiation": state = "supported_autoneg"
				elif section == "Advertised link modes": state = "advertised_modes"
				elif section == "Advertised auto-negotiation": state = "advertised_autoneg"
				else: state = "wait"
				del section

			elif state == "speed":
				# Try to determine speed. If it fails, assume 1gbit ethernet
				try:
					self.speed = re_speed.match(line).group(1)
				except:
					self.speed = 1000
				state = "wait"

			elif state == "duplex":
				self.full_duplex = line == "Full"
				state = "wait"

			elif state == "autoneg":
				self.autoneg = (line == "yes" or line == "on")
				state = "wait"

			elif state == "link":
				self.link = line == "yes"
				state = "wait"

			elif state == "supported_modes":
				# Try to determine supported modes. If it fails, assume 1gibt ethernet fullduplex works
				try:
					for m in line.split():
						(s, d) = re_mode.match(m).group(1,2)
						self.supported_modes.append( (int(s), d == "Full") )
					del m,s,d
				except:
					self.supported_modes.append((1000, True))
	

			elif state == "supported_autoneg":
				self.supported_autoneg = line == "Yes"
				state = "wait"

			elif state == "advertised_modes":
				# Try to determine advertised modes. If it fails, assume 1gibt ethernet fullduplex works
				try:
					if line != "Not reported":
						for m in line.split():
							(s, d) = re_mode.match(m).group(1,2)
							self.advertised_modes.append( (int(s), d == "Full") )
						del m,s,d
				except:
					self.advertised_modes.append((1000, True))

			elif state == "advertised_autoneg":
				self.advertised_autoneg = line == "Yes"
				state = "wait"

def ethcard(interface):
	if not interface in ethcard.list:
		ethcard.list[interface] = Nettool(interface)

	return ethcard.list[interface]

ethcard.list = {}

polkit.py000064400000002630150516642640006432 0ustar00import dbus
import tuned.logs

log = tuned.logs.get()

class polkit():
	def __init__(self):
		self._bus = dbus.SystemBus()
		self._proxy = self._bus.get_object('org.freedesktop.PolicyKit1', '/org/freedesktop/PolicyKit1/Authority', follow_name_owner_changes = True)
		self._authority = dbus.Interface(self._proxy, dbus_interface='org.freedesktop.PolicyKit1.Authority')

	def check_authorization(self, sender, action_id):
		"""Check authorization, return codes:
			1  - authorized
			2  - polkit error, but authorized with fallback method
			0  - unauthorized
			-1 - polkit error and unauthorized by the fallback method
			-2 - polkit error and unable to use the fallback method
		"""

		if sender is None or action_id is None:
			return False
		details = {}
		flags = 1            # AllowUserInteraction flag
		cancellation_id = "" # No cancellation id
		subject = ("system-bus-name", {"name" : sender})
		try:
			ret = self._authority.CheckAuthorization(subject, action_id, details, flags, cancellation_id)[0]
		except (dbus.exceptions.DBusException, ValueError) as e:
			log.error("error querying polkit: %s" % e)
			# No polkit or polkit error, fallback to always allow root
			try:
				uid = self._bus.get_unix_user(sender)
			except dbus.exceptions.DBusException as e:
				log.error("error using fallback authorization method: %s" % e)
				return -2
			if uid == 0:
				return 2
			else:
				return -1
		return 1 if ret else 0
__pycache__/commands.cpython-36.opt-1.pyc000064400000037457150516642640014173 0ustar003

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Hglobal_config.py000064400000006225150516642640007721 0ustar00import tuned.logs
from tuned.utils.config_parser import ConfigParser, Error
from tuned.exceptions import TunedException
import tuned.consts as consts
from tuned.utils.commands import commands

__all__ = ["GlobalConfig"]

log = tuned.logs.get()

class GlobalConfig():

	def __init__(self,config_file = consts.GLOBAL_CONFIG_FILE):
		self._cfg = {}
		self.load_config(file_name=config_file)
		self._cmd = commands()

	@staticmethod
	def get_global_config_spec():
		"""
		Easy validation mimicking configobj
		Returns two dicts, first with default values (default None)
		global_default[consts.CFG_SOMETHING] = consts.CFG_DEF_SOMETHING or None
		second with configobj function for value type (default "get" for string, others eg getboolean, getint)
		global_function[consts.CFG_SOMETHING] = consts.CFG_FUNC_SOMETHING or get
		}
		"""
		options = [opt for opt in dir(consts)
				   if opt.startswith("CFG_") and
				   not opt.startswith("CFG_FUNC_") and
				   not opt.startswith("CFG_DEF_")]
		global_default = dict((getattr(consts, opt), getattr(consts, "CFG_DEF_" + opt[4:], None)) for opt in options)
		global_function = dict((getattr(consts, opt), getattr(consts, "CFG_FUNC_" + opt[4:], "get")) for opt in options)
		return global_default, global_function

	def load_config(self, file_name = consts.GLOBAL_CONFIG_FILE):
		"""
		Loads global configuration file.
		"""
		log.debug("reading and parsing global configuration file '%s'" % file_name)
		try:
			config_parser = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), strict=False)
			config_parser.optionxform = str
			with open(file_name) as f:
				config_parser.read_string("[" + consts.MAGIC_HEADER_NAME + "]\n" + f.read(), file_name)
			self._cfg, _global_config_func = self.get_global_config_spec()
			for option in config_parser.options(consts.MAGIC_HEADER_NAME):
				if option in self._cfg:
					try:
						func = getattr(config_parser, _global_config_func[option])
						self._cfg[option] = func(consts.MAGIC_HEADER_NAME, option)
					except Error:
						raise TunedException("Global TuneD configuration file '%s' is not valid."
											 % file_name)
				else:
					log.info("Unknown option '%s' in global config file '%s'." % (option, file_name))
					self._cfg[option] = config_parser.get(consts.MAGIC_HEADER_NAME, option, raw=True)
		except IOError as e:
			raise TunedException("Global TuneD configuration file '%s' not found." % file_name)
		except Error as e:
			raise TunedException("Error parsing global TuneD configuration file '%s'." % file_name)

	def get(self, key, default = None):
		return self._cfg.get(key, default)

	def get_bool(self, key, default = None):
		if self._cmd.get_bool(self.get(key, default)) == "1":
			return True
		return False

	def get_int(self, key, default = 0):
		i = self._cfg.get(key, default)
		if i:
			if isinstance(i, int):
				return i
			else:
				return int(i, 0)
		return default

	def set(self, key, value):
		self._cfg[key] = value

	def get_size(self, key, default = None):
		val = self.get(key)
		if val is None:
			return default
		ret = self._cmd.get_size(val)
		if ret is None:
			log.error("Error parsing value '%s', using '%s'." %(val, default))
			return default
		else:
			return ret
commands.py000064400000040356150516642640006740 0ustar00import errno
import hashlib
import tuned.logs
import copy
import os
import shutil
import tuned.consts as consts
import re
from subprocess import *
from tuned.exceptions import TunedException

log = tuned.logs.get()

class commands:

	def __init__(self, logging = True):
		self._logging = logging

	def _error(self, msg):
		if self._logging:
			log.error(msg)

	def _debug(self, msg):
		if self._logging:
			log.debug(msg)

	def get_bool(self, value):
		v = str(value).upper().strip()
		return {"Y":"1", "YES":"1", "T":"1", "TRUE":"1", "N":"0", "NO":"0", "F":"0", "FALSE":"0"}.get(v, value)

	def remove_ws(self, s):
		return re.sub(r'\s+', ' ', str(s)).strip()

	def unquote(self, v):
		return re.sub("^\"(.*)\"$", r"\1", v)

	# escape escape character (by default '\')
	def escape(self, s, what_escape = "\\", escape_by = "\\"):
		return s.replace(what_escape, "%s%s" % (escape_by, what_escape))

	# clear escape characters (by default '\')
	def unescape(self, s, escape_char = "\\"):
		return s.replace(escape_char, "")

	# add spaces to align s2 to pos, returns resulting string: s1 + spaces + s2
	def align_str(self, s1, pos, s2):
		return s1 + " " * (pos - len(s1)) + s2

	# convert dictionary 'd' to flat list and return it
	# it uses sort on the dictionary items to return consistent results
	# for directories with different inserte/delete history
	def dict2list(self, d):
		l = []
		if d is not None:
			for i in sorted(d.items()):
				l += list(i)
		return l

	# Compile regex to speedup multiple_re_replace or re_lookup
	def re_lookup_compile(self, d):
		if d is None:
			return None
		return re.compile("(%s)" % ")|(".join(list(d.keys())))

	# Do multiple regex replaces in 's' according to lookup table described by
	# dictionary 'd', e.g.: d = {"re1": "replace1", "re2": "replace2", ...}
	# r can be regex precompiled by re_lookup_compile for speedup
	def multiple_re_replace(self, d, s, r = None, flags = 0):
		if d is None:
			if r is None:
				return s
		else:
			if len(d) == 0 or s is None:
				return s
		if r is None:
			r = self.re_lookup_compile(d)
		return r.sub(lambda mo: list(d.values())[mo.lastindex - 1], s, flags)

	# Do regex lookup on 's' according to lookup table described by
	# dictionary 'd' and return corresponding value from the dictionary,
	# e.g.: d = {"re1": val1, "re2": val2, ...}
	# r can be regex precompiled by re_lookup_compile for speedup
	def re_lookup(self, d, s, r = None):
		if len(d) == 0 or s is None:
			return None
		if r is None:
			r = self.re_lookup_compile(d)
		mo = r.search(s)
		if mo:
			return list(d.values())[mo.lastindex - 1]
		return None

	def write_to_file(self, f, data, makedir = False, no_error = False):
		"""Write data to a file.

		Parameters:
		f -- filename where to write
		data -- data to write
		makedir -- if True and the path doesn't exist, it will be created
		no_error -- if True errors are silenced, it can be also list of ignored errnos

		Return:
		bool -- True on success
		"""
		self._debug("Writing to file: '%s' < '%s'" % (f, data))
		if makedir:
			d = os.path.dirname(f)
			if os.path.isdir(d):
				makedir = False
		try:
			if makedir:
				os.makedirs(d)
			fd = open(f, "w")
			fd.write(str(data))
			fd.close()
			rc = True
		except (OSError, IOError) as e:
			rc = False
			if isinstance(no_error, bool) and not no_error or \
				isinstance(no_error, list) and e.errno not in no_error:
					self._error("Writing to file '%s' error: '%s'" % (f, e))
		return rc

	def read_file(self, f, err_ret = "", no_error = False):
		old_value = err_ret
		try:
			f = open(f, "r")
			old_value = f.read()
			f.close()
		except (OSError,IOError) as e:
			if not no_error:
				self._error("Error when reading file '%s': '%s'" % (f, e))
		self._debug("Read data from file: '%s' > '%s'" % (f, old_value))
		return old_value

	def rmtree(self, f, no_error = False):
		self._debug("Removing tree: '%s'" % f)
		if os.path.exists(f):
			try:
				shutil.rmtree(f, no_error)
			except OSError as error:
				if not no_error:
					log.error("cannot remove tree '%s': '%s'" % (f, str(error)))
				return False
		return True

	def unlink(self, f, no_error = False):
		self._debug("Removing file: '%s'" % f)
		if os.path.exists(f):
			try:
				os.unlink(f)
			except OSError as error:
				if not no_error:
					log.error("cannot remove file '%s': '%s'" % (f, str(error)))
				return False
		return True

	def rename(self, src, dst, no_error = False):
		self._debug("Renaming file '%s' to '%s'" % (src, dst))
		try:
			os.rename(src, dst)
		except OSError as error:
			if not no_error:
				log.error("cannot rename file '%s' to '%s': '%s'" % (src, dst, str(error)))
			return False
		return True

	def copy(self, src, dst, no_error = False):
		try:
			log.debug("copying file '%s' to '%s'" % (src, dst))
			shutil.copy(src, dst)
			return True
		except IOError as e:
			if not no_error:
				log.error("cannot copy file '%s' to '%s': %s" % (src, dst, e))
			return False

	def replace_in_file(self, f, pattern, repl):
		data = self.read_file(f)
		if len(data) <= 0:
			return False;
		return self.write_to_file(f, re.sub(pattern, repl, data, flags = re.MULTILINE))

	# do multiple replaces in file 'f' by using dictionary 'd',
	# e.g.: d = {"re1": val1, "re2": val2, ...}
	def multiple_replace_in_file(self, f, d):
		data = self.read_file(f)
		if len(data) <= 0:
			return False;
		return self.write_to_file(f, self.multiple_re_replace(d, data, flags = re.MULTILINE))

	# makes sure that options from 'd' are set to values from 'd' in file 'f',
	# when needed it edits options or add new options if they don't
	# exist and 'add' is set to True, 'd' has the following form:
	# d = {"option_1": value_1, "option_2": value_2, ...}
	def add_modify_option_in_file(self, f, d, add = True):
		data = self.read_file(f)
		for opt in d:
			o = str(opt)
			v = str(d[opt])
			if re.search(r"\b" + o + r"\s*=.*$", data, flags = re.MULTILINE) is None:
				if add:
					if len(data) > 0 and data[-1] != "\n":
						data += "\n"
					data += "%s=\"%s\"\n" % (o, v)
			else:
				data = re.sub(r"\b(" + o + r"\s*=).*$", r"\1" + "\"" + self.escape(v) + "\"", data, flags = re.MULTILINE)

		return self.write_to_file(f, data)

	# calcualtes md5sum of file 'f'
	def md5sum(self, f):
		data = self.read_file(f)
		return hashlib.md5(str(data).encode("utf-8")).hexdigest()

	# calcualtes sha256sum of file 'f'
	def sha256sum(self, f):
		data = self.read_file(f)
		return hashlib.sha256(str(data).encode("utf-8")).hexdigest()

	# returns machine ID or empty string "" in case of error
	def get_machine_id(self, no_error = True):
		return self.read_file(consts.MACHINE_ID_FILE, no_error).strip()

	# "no_errors" can be list of return codes not treated as errors, if 0 is in no_errors, it means any error
	# returns (retcode, out), where retcode is exit code of the executed process or -errno if
	# OSError or IOError exception happened
	def execute(self, args, shell = False, cwd = None, env = {}, no_errors = [], return_err = False):
		retcode = 0
		_environment = os.environ.copy()
		_environment["LC_ALL"] = "C"
		_environment.update(env)

		self._debug("Executing %s." % str(args))
		out = ""
		err_msg = None
		try:
			proc = Popen(args, stdout = PIPE, stderr = PIPE, \
					env = _environment, \
					shell = shell, cwd = cwd, \
					close_fds = True, \
					universal_newlines = True)
			out, err = proc.communicate()

			retcode = proc.returncode
			if retcode and not retcode in no_errors and not 0 in no_errors:
				err_out = err[:-1]
				if len(err_out) == 0:
					err_out = out[:-1]
				err_msg = "Executing '%s' error: %s" % (' '.join(args), err_out)
				if not return_err:
					self._error(err_msg)
		except (OSError, IOError) as e:
			retcode = -e.errno if e.errno is not None else -1
			if not abs(retcode) in no_errors and not 0 in no_errors:
				err_msg = "Executing '%s' error: %s" % (' '.join(args), e)
				if not return_err:
					self._error(err_msg)
		if return_err:
			return retcode, out, err_msg
		else:
			return retcode, out

	# Helper for parsing kernel options like:
	# [always] never
	# It will return 'always'
	def get_active_option(self, options, dosplit = True):
		m = re.match(r'.*\[([^\]]+)\].*', options)
		if m:
			return m.group(1)
		if dosplit:
			return options.split()[0]
		return options

	# Checks whether CPU is online
	def is_cpu_online(self, cpu):
		scpu = str(cpu)
		# CPU0 is always online
		return cpu == "0" or self.read_file("/sys/devices/system/cpu/cpu%s/online" % scpu, no_error = True).strip() == "1"

	# Converts hexadecimal CPU mask to CPU list
	def hex2cpulist(self, mask):
		if mask is None:
			return None
		mask = str(mask).replace(",", "")
		try:
			m = int(mask, 16)
		except ValueError:
			log.error("invalid hexadecimal mask '%s'" % str(mask))
			return []
		return self.bitmask2cpulist(m)

	# Converts an integer bitmask to a list of cpus (e.g. [0,3,4])
	def bitmask2cpulist(self, mask):
		cpu = 0
		cpus = []
		while mask > 0:
			if mask & 1:
				cpus.append(cpu)
			mask >>= 1
			cpu += 1
		return cpus

	# Unpacks CPU list, i.e. 1-3 will be converted to 1, 2, 3, supports
	# hexmasks that needs to be prefixed by "0x". Hexmasks can have commas,
	# which will be removed. If combining hexmasks with CPU list they need
	# to be separated by ",,", e.g.: 0-3, 0xf,, 6. It also supports negation
	# cpus by specifying "^" or "!", e.g.: 0-5, ^3, will output the list as
	# "0,1,2,4,5" (excluding 3). Note: negation supports only cpu numbers.
	# If "strip_chars" is not None and l is not list, we try strip characters.
	# It should be string with list of chars that is send to string.strip method
	# Default is english single and double quotes ("') rhbz#1891036
	def cpulist_unpack(self, l, strip_chars='\'"'):
		rl = []
		if l is None:
			return l
		ll = l
		if type(ll) is not list:
			if strip_chars is not None:
				ll = str(ll).strip(strip_chars)
			ll = str(ll).split(",")
		ll2 = []
		negation_list = []
		hexmask = False
		hv = ""
		# Remove commas from hexmasks
		for v in ll:
			sv = str(v)
			if hexmask:
				if len(sv) == 0:
					hexmask = False
					ll2.append(hv)
					hv = ""
				else:
					hv += sv
			else:
				if sv[0:2].lower() == "0x":
					hexmask = True
					hv = sv
				elif sv and (sv[0] == "^" or sv[0] == "!"):
					nl = sv[1:].split("-")
					try:
						if (len(nl) > 1):
							negation_list += list(range(
								int(nl[0]),
								int(nl[1]) + 1
								)
							)
						else:
							negation_list.append(int(sv[1:]))
					except ValueError:
						return []
				else:
					if len(sv) > 0:
						ll2.append(sv)
		if len(hv) > 0:
			ll2.append(hv)
		for v in ll2:
			vl = v.split("-")
			if v[0:2].lower() == "0x":
				rl += self.hex2cpulist(v)
			else:
				try:
					if len(vl) > 1:
						rl += list(range(int(vl[0]), int(vl[1]) + 1))
					else:
						rl.append(int(vl[0]))
				except ValueError:
					return []
		cpu_list = sorted(list(set(rl)))

		# Remove negated cpus after expanding
		for cpu in negation_list:
			if cpu in cpu_list:
				cpu_list.remove(cpu)
		return cpu_list

	# Packs CPU list, i.e. 1, 2, 3  will be converted to 1-3. It unpacks the
	# CPU list through cpulist_unpack first, so see its description about the
	# details of the input syntax
	def cpulist_pack(self, l):
		l = self.cpulist_unpack(l)
		if l is None or len(l) == 0:
			return l
		i = 0
		j = i
		rl = []
		while i + 1 < len(l):
			if l[i + 1] - l[i] != 1:
				if j != i:
					rl.append(str(l[j]) + "-" + str(l[i]))
				else:
					rl.append(str(l[i]))
				j = i + 1
			i += 1
		if j + 1 < len(l):
			rl.append(str(l[j]) + "-" + str(l[-1]))
		else:
			rl.append(str(l[-1]))
		return rl

	# Inverts CPU list (i.e. makes its complement)
	def cpulist_invert(self, l):
		cpus = self.cpulist_unpack(l)
		online = self.cpulist_unpack(self.read_file("/sys/devices/system/cpu/online"))
		return list(set(online) - set(cpus))

	# Converts CPU list to hexadecimal CPU mask
	def cpulist2hex(self, l):
		if l is None:
			return None
		ul = self.cpulist_unpack(l)
		if ul is None:
			return None
		m = self.cpulist2bitmask(ul)
		s = "%x" % m
		ls = len(s)
		if ls % 8 != 0:
			ls += 8 - ls % 8
		s = s.zfill(ls)
		return ",".join(s[i:i + 8] for i in range(0, len(s), 8))

	def cpulist2bitmask(self, l):
		m = 0
		for v in l:
			m |= pow(2, v)
		return m

	def cpulist2string(self, l, prefix = ""):
		return ",".join((prefix + str(v)) for v in l)

	# Converts string s consisting of "dev1,dev2,dev3,..." to list ["dev1", "dev2, "dev3", ...],
	# whitespaces are ignored, cpu lists are supported with the prefix "cpulist:", e.g.
	# "cpulist:0-2,4" is converted to ["cpu0", "cpu1", "cpu2", "cpu4"]. If device name starts
	# with "cpulist:" write it as "cpulist:cpulist:". Escape commas in name with the "\,".
	def devstr2devs(self, s):
		if s[0:8].lower() == "cpulist:":
			s = s[8:]
			if s[0:8].lower() != "cpulist:":
				return [("cpu" + str(v)) for v in self.cpulist_unpack(s)]
		l = re.split(r"\s*(?<!\\),\s*", s)
		return [str(v).replace(r"\,", ",") for v in l]

	# Do not make balancing on patched Python 2 interpreter (rhbz#1028122).
	# It means less CPU usage on patchet interpreter. On non-patched interpreter
	# it is not allowed to sleep longer than 50 ms.
	def wait(self, terminate, time):
		try:
			return terminate.wait(time, False)
		except:
			return terminate.wait(time)

	def get_size(self, s):
		s = str(s).strip().upper()
		for unit in ["KB", "MB", "GB", ""]:
			unit_ix = s.rfind(unit)
			if unit_ix == -1:
				continue
			try:
				val = int(s[:unit_ix])
				u = s[unit_ix:]
				if u == "KB":
					val *= 1024
				elif u == "MB":
					val *= 1024 * 1024
				elif u == "GB":
					val *= 1024 * 1024 * 1024
				elif u != "":
					val = None
				return val
			except ValueError:
				return None

	def get_active_profile(self):
		profile_name = ""
		mode = ""
		try:
			with open(consts.ACTIVE_PROFILE_FILE, "r") as f:
				profile_name = f.read().strip()
		except IOError as e:
			if e.errno != errno.ENOENT:
				raise TunedException("Failed to read active profile: %s" % e)
		except (OSError, EOFError) as e:
			raise TunedException("Failed to read active profile: %s" % e)
		try:
			with open(consts.PROFILE_MODE_FILE, "r") as f:
				mode = f.read().strip()
				if mode not in ["", consts.ACTIVE_PROFILE_AUTO, consts.ACTIVE_PROFILE_MANUAL]:
					raise TunedException("Invalid value in file %s." % consts.PROFILE_MODE_FILE)
		except IOError as e:
			if e.errno != errno.ENOENT:
				raise TunedException("Failed to read profile mode: %s" % e)
		except (OSError, EOFError) as e:
			raise TunedException("Failed to read profile mode: %s" % e)
		if mode == "":
			manual = None
		else:
			manual = mode == consts.ACTIVE_PROFILE_MANUAL
		if profile_name == "":
			profile_name = None
		return (profile_name, manual)

	def save_active_profile(self, profile_name, manual):
		try:
			with open(consts.ACTIVE_PROFILE_FILE, "w") as f:
				if profile_name is not None:
					f.write(profile_name + "\n")
		except (OSError,IOError) as e:
			raise TunedException("Failed to save active profile: %s" % e.strerror)
		try:
			with open(consts.PROFILE_MODE_FILE, "w") as f:
				mode = consts.ACTIVE_PROFILE_MANUAL if manual else consts.ACTIVE_PROFILE_AUTO
				f.write(mode + "\n")
		except (OSError,IOError) as e:
			raise TunedException("Failed to save profile mode: %s" % e.strerror)

	def get_post_loaded_profile(self):
		profile_name = ""
		try:
			with open(consts.POST_LOADED_PROFILE_FILE, "r") as f:
				profile_name = f.read().strip()
		except IOError as e:
			if e.errno != errno.ENOENT:
				raise TunedException("Failed to read the active post-loaded profile: %s" % e)
		except (OSError, EOFError) as e:
			raise TunedException("Failed to read the active post-loaded profile: %s" % e)
		if profile_name == "":
			profile_name = None
		return profile_name

	def save_post_loaded_profile(self, profile_name):
		try:
			with open(consts.POST_LOADED_PROFILE_FILE, "w") as f:
				if profile_name is not None:
					f.write(profile_name + "\n")
		except (OSError,IOError) as e:
			raise TunedException("Failed to save the active post-loaded profile: %s" % e.strerror)

	# Translates characters in 'text' from 'source_chars' to 'dest_chars'
	def tr(self, text, source_chars, dest_chars):
		try:
			trans = str.maketrans(source_chars, dest_chars)
		except AttributeError:
			import string
			trans = string.maketrans(source_chars, dest_chars)
		return text.translate(trans)

	# Checks if name contains only valid characters and has valid length or is empty string or None
	def is_valid_name(self, name):
		return not name or (all(c in consts.NAMES_ALLOWED_CHARS for c in name) and len(name) <= consts.NAMES_MAX_LENGTH)
profile_recommender.py000064400000013463150516642640011156 0ustar00import os
import re
import errno
import procfs
import subprocess
from tuned.utils.config_parser import ConfigParser, Error

try:
	import syspurpose.files
	have_syspurpose = True
except:
	have_syspurpose = False

import tuned.consts as consts
import tuned.logs
from tuned.utils.commands import commands

log = tuned.logs.get()

class ProfileRecommender:

	def __init__(self, is_hardcoded = False):
		self._is_hardcoded = is_hardcoded
		self._commands = commands()
		self._chassis_type = None

	def recommend(self):
		profile = consts.DEFAULT_PROFILE
		if self._is_hardcoded:
			return profile

		has_root = os.geteuid() == 0
		if not has_root:
			log.warning("Profile recommender is running without root privileges. Profiles with virt recommendation condition will be omitted.")
		matching = self.process_config(consts.RECOMMEND_CONF_FILE,
									   has_root=has_root)
		if matching is not None:
			return matching
		files = {}
		for directory in consts.RECOMMEND_DIRECTORIES:
			contents = []
			try:
				contents = os.listdir(directory)
			except OSError as e:
				if e.errno != errno.ENOENT:
					log.error("error accessing %s: %s" % (directory, e))
			for name in contents:
				path = os.path.join(directory, name)
				files[name] = path
		for name in sorted(files.keys()):
			path = files[name]
			matching = self.process_config(path, has_root=has_root)
			if matching is not None:
				return matching
		return profile

	def process_config(self, fname, has_root=True):
		matching_profile = None
		syspurpose_error_logged = False
		try:
			if not os.path.isfile(fname):
				return None
			config = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), strict=False)
			config.optionxform = str
			with open(fname) as f:
				config.read_file(f, fname)
			for section in config.sections():
				match = True
				for option in config.options(section):
					value = config.get(section, option, raw=True)
					if value == "":
						value = r"^$"
					if option == "virt":
						if not has_root:
							match = False
							break
						if not re.match(value,
								self._commands.execute(["virt-what"])[1], re.S):
							match = False
					elif option == "system":
						if not re.match(value,
								self._commands.read_file(
								consts.SYSTEM_RELEASE_FILE,
								no_error = True), re.S):
							match = False
					elif option[0] == "/":
						if not os.path.exists(option) or not re.match(value,
								self._commands.read_file(option), re.S):
							match = False
					elif option[0:7] == "process":
						ps = procfs.pidstats()
						ps.reload_threads()
						if len(ps.find_by_regex(re.compile(value))) == 0:
							match = False
					elif option == "chassis_type":
						chassis_type = self._get_chassis_type()

						if not re.match(value, chassis_type, re.IGNORECASE):
							match = False
					elif option == "syspurpose_role":
						role = ""
						if have_syspurpose:
							s = syspurpose.files.SyspurposeStore(
									syspurpose.files.USER_SYSPURPOSE,
									raise_on_error = True)
							try:
								s.read_file()
								role = s.contents["role"]
							except (IOError, OSError, KeyError) as e:
								if hasattr(e, "errno") and e.errno != errno.ENOENT:
									log.error("Failed to load the syspurpose\
										file: %s" % e)
						else:
							if not syspurpose_error_logged:
								log.error("Failed to process 'syspurpose_role' in '%s'\
									, the syspurpose module is not available" % fname)
								syspurpose_error_logged = True
						if re.match(value, role, re.IGNORECASE) is None:
							match = False

				if match:
					# remove the ",.*" suffix
					r = re.compile(r",[^,]*$")
					matching_profile = r.sub("", section)
					break
		except (IOError, OSError, Error) as e:
			log.error("error processing '%s', %s" % (fname, e))
		return matching_profile

	def _get_chassis_type(self):
		if self._chassis_type is not None:
			log.debug("returning cached chassis type '%s'" % self._chassis_type)
			return self._chassis_type

		# Check DMI sysfs first
		# Based on SMBios 3.3.0 specs (https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.3.0.pdf)
		DMI_CHASSIS_TYPES = ["", "Other", "Unknown", "Desktop", "Low Profile Desktop", "Pizza Box", "Mini Tower", "Tower",
							"Portable", "Laptop", "Notebook", "Hand Held", "Docking Station", "All In One", "Sub Notebook",
							"Space-saving", "Lunch Box", "Main Server Chassis", "Expansion Chassis", "Sub Chassis",
							"Bus Expansion Chassis", "Peripheral Chassis", "RAID Chassis", "Rack Mount Chassis", "Sealed-case PC",
							"Multi-system", "CompactPCI", "AdvancedTCA", "Blade", "Blade Enclosing", "Tablet",
							"Convertible", "Detachable", "IoT Gateway", "Embedded PC", "Mini PC", "Stick PC"]
		try:
			with open('/sys/devices/virtual/dmi/id/chassis_type', 'r') as sysfs_chassis_type:
				chassis_type_id = int(sysfs_chassis_type.read())

			self._chassis_type = DMI_CHASSIS_TYPES[chassis_type_id]
		except IndexError:
			log.error("Unknown chassis type id read from dmi sysfs: %d" % chassis_type_id)
		except (OSError, IOError) as e:
			log.warn("error accessing dmi sysfs file: %s" % e)

		if self._chassis_type:
			log.debug("chassis type - %s" % self._chassis_type)
			return self._chassis_type

		# Fallback - try parsing dmidecode output
		try:
			p_dmi = subprocess.Popen(['dmidecode', '-s', 'chassis-type'],
				stdout=subprocess.PIPE, stderr=subprocess.PIPE,
				close_fds=True)

			(dmi_output, dmi_error) = p_dmi.communicate()

			if p_dmi.returncode:
				log.error("dmidecode finished with error (ret %d): '%s'" % (p_dmi.returncode, dmi_error))
			else:
				self._chassis_type = dmi_output.strip().decode()
		except (OSError, IOError) as e:
			log.warn("error executing dmidecode tool : %s" % e)

		if not self._chassis_type:
			log.debug("could not determine chassis type.")
			self._chassis_type = ""
		else:
			log.debug("chassis type - %s" % self._chassis_type)

		return self._chassis_type
plugin_loader.py000064400000003403150516642640007753 0ustar00import tuned.logs
import os

__all__ = ["PluginLoader"]

log = tuned.logs.get()

class PluginLoader(object):
	__slots__ = ["_namespace", "_prefix", "_interface"]

	def _set_loader_parameters(self):
		"""
		This method has to be implemented in child class and should
		set _namespace, _prefix, and _interface member attributes.
		"""
		raise NotImplementedError()

	def __init__(self):
		super(PluginLoader, self).__init__()

		self._namespace = None
		self._prefix = None
		self._interface = None
		self._set_loader_parameters()
		assert type(self._namespace) is str
		assert type(self._prefix) is str
		assert type(self._interface) is type and issubclass(self._interface, object)

	def load_plugin(self, plugin_name):
		assert type(plugin_name) is str
		module_name = "%s.%s%s" % (self._namespace, self._prefix, plugin_name)
		return self._get_class(module_name)

	def _get_class(self, module_name):
		log.debug("loading module %s" % module_name)
		module = __import__(module_name)
		path = module_name.split(".")
		path.pop(0)

		while len(path) > 0:
			module = getattr(module, path.pop(0))

		for name in module.__dict__:
			cls = getattr(module, name)
			if type(cls) is type and issubclass(cls, self._interface):
				return cls

		raise ImportError("Cannot find the plugin class.")

	def load_all_plugins(self):
		plugins_package = __import__(self._namespace)
		plugin_clss = []
		for module_name in os.listdir(plugins_package.plugins.__path__[0]):
			try:
				module_name = os.path.splitext(module_name)[0]
				if not module_name.startswith("plugin_"):
					continue
				plugin_class = self._get_class(
					"%s.%s" % (self._namespace, module_name)
					)
				if plugin_class not in plugin_clss:
					plugin_clss.append(plugin_class)
			except ImportError:
				pass
		return plugin_clss

config_parser.py000064400000003037150516642640007753 0ustar00# ConfigParser wrapper providing compatibility layer for python 2.7/3

try:
	python3 = True
	import configparser as cp
except ImportError:
	python3 = False
	import ConfigParser as cp
	from StringIO import StringIO
	import re

class Error(cp.Error):
	pass

if python3:

	class ConfigParser(cp.ConfigParser):
		pass

else:

	class ConfigParser(cp.ConfigParser):

		def __init__(self, delimiters=None, inline_comment_prefixes=None, strict=False, *args, **kwargs):
			delims = "".join(list(delimiters))
			# REs taken from the python-2.7 ConfigParser
			self.OPTCRE = re.compile(
				r'(?P<option>[^' + delims + r'\s][^' + delims + ']*)'
				r'\s*(?P<vi>[' + delims + r'])\s*'
				r'(?P<value>.*)$'
			)
			self.OPTCRE_NV = re.compile(
				r'(?P<option>[^' + delims + r'\s][^' + delims + ']*)'
				r'\s*(?:'
				r'(?P<vi>[' + delims + r'])\s*'
				r'(?P<value>.*))?$'
			)
			cp.ConfigParser.__init__(self, *args, **kwargs)
			self._inline_comment_prefixes = inline_comment_prefixes or []
			self._re = re.compile(r"\s+(%s).*" % ")|(".join(list(self._inline_comment_prefixes)))

		def read_string(self, string, source="<string>"):
			sfile = StringIO(string)
			self.read_file(sfile, source)

		def readfp(self, fp, filename=None):
			cp.ConfigParser.readfp(self, fp, filename)
			# remove inline comments
			all_sections = [self._defaults]
			all_sections.extend(self._sections.values())
			for options in all_sections:
				for name, val in options.items():
					options[name] = self._re.sub("", val)

		def read_file(self, f, source="<???>"):
			self.readfp(f, source)