def updateNVRAMBootList(self):
if not conf.target.is_hardware:
return
log.debug("updateNVRAMBootList: self.stage1_device.path = %s", self.stage1_device.path)
buf = util.execWithCapture("nvram",
["--print-config=boot-device"])
if len(buf) == 0:
log.error("Failed to determine nvram boot device")
return
boot_list = buf.strip().replace("\"", "").split()
log.debug("updateNVRAMBootList: boot_list = %s", boot_list)
buf = util.execWithCapture("ofpathname",
[self.stage1_device.path])
if len(buf) > 0:
boot_disk = buf.strip()
else:
log.error("Failed to translate boot path into device name")
return
# Place the disk containing the PReP partition first.
# Remove all other occurances of it.
boot_list = [boot_disk] + [x for x in boot_list if x != boot_disk]
update_value = "boot-device=%s" % " ".join(boot_list)
rc = util.execWithRedirect("nvram", ["--update-config", update_value])
if rc:
log.error("Failed to update new boot device order")
def updateNVRAMBootList(self):
if not conf.target.is_hardware:
return
log.debug("updateNVRAMBootList: self.stage1_device.path = %s", self.stage1_device.path)
buf = util.execWithCapture("nvram",
["--print-config=boot-device"])
if len(buf) == 0:
log.error("Failed to determine nvram boot device")
return
boot_list = buf.strip().replace("\"", "").split()
log.debug("updateNVRAMBootList: boot_list = %s", boot_list)
buf = util.execWithCapture("ofpathname",
[self.stage1_device.path])
if len(buf) > 0:
boot_disk = buf.strip()
else:
log.error("Failed to translate boot path into device name")
return
# Place the disk containing the PReP partition first.
# Remove all other occurances of it.
boot_list = [boot_disk] + [x for x in boot_list if x != boot_disk]
update_value = "boot-device=%s" % " ".join(boot_list)
rc = util.execWithRedirect("nvram", ["--update-config", update_value])
if rc:
log.error("Failed to update new boot device order")
def exec_with_capture_test(self):
"""Test execWithCapture."""
# check some output is returned
self.assertGreater(len(util.execWithCapture('ls', ['--help'])), 0)
# check no output is returned
self.assertEqual(len(util.execWithCapture('true', [])), 0)
def exec_with_capture_test(self):
"""Test execWithCapture."""
# check some output is returned
self.assertGreater(len(util.execWithCapture('ls', ['--help'])), 0)
# check no output is returned
self.assertEqual(len(util.execWithCapture('true', [])), 0)
def test_exec_with_capture(self):
"""Test execWithCapture."""
# check some output is returned
assert len(util.execWithCapture('ls', ['--help'])) > 0
# check no output is returned
assert len(util.execWithCapture('true', [])) == 0
def shutdownServer():
"""Try to shutdown any running XVNC server
Why is this function on the module level and not in the VncServer class ?
As the server needs to be killed from the exit handler, it would have
to somehow get to the VncServer instance. Like this, it can just kill
it by calling a function of the vnc module.
"""
try:
util.execWithCapture("killall", [XVNC_BINARY_NAME])
log.info("The XVNC server has been shut down.")
except OSError as e:
log.error("Shutdown of the XVNC server failed with exception:\n%s", e)
def shutdownServer():
"""Try to shutdown any running XVNC server
Why is this function on the module level and not in the VncServer class ?
As the server needs to be killed from the exit handler, it would have
to somehow get to the VncServer instance. Like this, it can just kill
it by calling a function of the vnc module.
"""
try:
util.execWithCapture("killall", [XVNC_BINARY_NAME])
log.info("The XVNC server has been shut down.")
except OSError as e:
log.error("Shutdown of the XVNC server failed with exception:\n%s", e)
def setup(self):
security_proxy = SECURITY.get_proxy()
realm = RealmData.from_structure(security_proxy.Realm)
if not realm.name:
return
try:
argv = ["discover", "--verbose"
] + realm.discover_options + [realm.name]
output = util.execWithCapture("realm", argv, filter_stderr=True)
except OSError:
# TODO: A lousy way of propagating what will usually be
# 'no such realm'
# The error message is logged by util
return
# Now parse the output for the required software. First line is the
# realm name, and following lines are information as "name: value"
self.packages = ["realmd"]
self.discovered = ""
lines = output.split("\n")
if not lines:
return
self.discovered = lines.pop(0).strip()
realm_log.info("Realm discovered: %s", self.discovered)
for line in lines:
parts = line.split(":", 1)
if len(parts) == 2 and parts[0].strip() == "required-package":
self.packages.append(parts[1].strip())
realm_log.info("Realm %s needs packages %s", self.discovered,
", ".join(self.packages))
def setup(self):
security_proxy = SECURITY.get_proxy()
realm = RealmData.from_structure(security_proxy.Realm)
if not realm.name:
return
try:
argv = ["discover", "--verbose"] + realm.discover_options + [realm.name]
output = util.execWithCapture("realm", argv, filter_stderr=True)
except OSError:
# TODO: A lousy way of propagating what will usually be
# 'no such realm'
# The error message is logged by util
return
# Now parse the output for the required software. First line is the
# realm name, and following lines are information as "name: value"
self.packages = ["realmd"]
self.discovered = ""
lines = output.split("\n")
if not lines:
return
self.discovered = lines.pop(0).strip()
realm_log.info("Realm discovered: %s", self.discovered)
for line in lines:
parts = line.split(":", 1)
if len(parts) == 2 and parts[0].strip() == "required-package":
self.packages.append(parts[1].strip())
realm_log.info("Realm %s needs packages %s",
self.discovered, ", ".join(self.packages))
def detect_live_os_image(self):
"""Detect live os image in the system."""
log.debug("Trying to detect live os base image automatically")
for block_device in [
"/dev/mapper/live-base", "/dev/mapper/live-osimg-min"
]:
try:
if stat.S_ISBLK(os.stat(block_device)[stat.ST_MODE]):
log.debug("Detected live base image %s", block_device)
return block_device
except FileNotFoundError:
pass
# Is it a squashfs+overlayfs base image?
if os.path.exists("/run/rootfsbase"):
try:
block_device = execWithCapture(
"findmnt",
["-n", "-o", "SOURCE", "/run/rootfsbase"]).strip()
if block_device:
log.debug("Detected live base image %s", block_device)
return block_device
except (OSError, FileNotFoundError):
pass
log.debug("No live base image detected")
return ""
def run(self):
if not self._realm_data.name:
log.debug("No realm name set, skipping realm discovery.")
return self._realm_data
output = ""
try:
argv = ["discover", "--verbose"] + self._realm_data.discover_options \
+ [self._realm_data.name]
output = util.execWithCapture(REALM_TOOL_NAME,
argv,
filter_stderr=True)
except OSError:
# TODO: A lousy way of propagating what will usually be
# 'no such realm'
# The error message is logged by util
return self._realm_data
realm_discovered, required_packages = self._parse_realm_data(output)
# set the result in the realm data holder and return it
self._realm_data.discovered = realm_discovered
self._realm_data.required_packages = required_packages
return self._realm_data
def run(self):
"""Run the task"""
if not self._gpg_keys:
log.debug("No GPG keys to import.")
return
if not os.path.exists(self._sysroot + "/usr/bin/rpm"):
log.error(
"Can not import GPG keys to RPM database because "
"the 'rpm' executable is missing on the target "
"system. The following keys were not imported:\n%s",
"\n".join(self._gpg_keys)
)
return
# Get substitutions for variables.
# TODO: replace the interpolation with DNF once possible
basearch = util.execWithCapture("uname", ["-i"]).strip().replace("'", "")
releasever = util.get_os_release_value("VERSION_ID", sysroot=self._sysroot) or ""
# Import GPG keys to RPM database.
for key in self._gpg_keys:
key = key.replace("$releasever", releasever).replace("$basearch", basearch)
log.info("Importing GPG key to RPM database: %s", key)
rc = util.execWithRedirect("rpm", ["--import", key], root=self._sysroot)
if rc:
log.error("Failed to import the GPG key.")
def _get_current_free_space_map():
"""Get the available file system disk space of the current system.
:return: a dictionary of mount points and their available space
"""
mapping = {}
# Generate the dictionary of mount points and sizes.
output = execWithCapture('df', ['--output=target,avail'])
lines = output.rstrip().splitlines()
for line in lines:
key, val = line.rsplit(maxsplit=1)
if not key.startswith('/'):
continue
mapping[key] = Size(int(val) * 1024)
# Add /var/tmp/ if this is a directory or image installation.
if not conf.target.is_hardware:
var_tmp = os.statvfs("/var/tmp")
mapping["/var/tmp"] = Size(var_tmp.f_frsize * var_tmp.f_bfree)
return mapping
def test_exec_with_capture_no_stderr(self):
"""Test execWithCapture with no stderr"""
with tempfile.NamedTemporaryFile(mode="w+t") as testscript:
testscript.write("""#!/bin/sh
echo "output"
echo "error" >&2
""")
testscript.flush()
# check that only the output is captured
assert util.execWithCapture("/bin/sh", [testscript.name], filter_stderr=True) == \
"output\n"
# check that both output and error are captured
assert util.execWithCapture("/bin/sh",
[testscript.name]) == "output\nerror\n"
def test_resolve_date_format(self):
"""All locales' date formats should be properly resolved."""
locales = (line.strip() for line in execWithCapture("locale", ["-a"]).splitlines())
for locale in locales:
locale_mod.setlocale(locale_mod.LC_ALL, locale)
order = localization.resolve_date_format(1, 2, 3, fail_safe=False)[0]
for i in (1, 2, 3):
self.assertIn(i, order)
def exec_with_capture_no_stderr_test(self):
"""Test execWithCapture with no stderr"""
with tempfile.NamedTemporaryFile(mode="w+t") as testscript:
testscript.write("""#!/bin/sh
echo "output"
echo "error" >&2
""")
testscript.flush()
# check that only the output is captured
self.assertEqual(
util.execWithCapture("/bin/sh", [testscript.name], filter_stderr=True),
"output\n")
# check that both output and error are captured
self.assertEqual(util.execWithCapture("/bin/sh", [testscript.name]), "output\nerror\n")
def updateNVRAMBootList(self):
if not conf.target.is_hardware:
return
log.debug("updateNVRAMBootList: self.stage1_device.path = %s",
self.stage1_device.path)
buf = util.execWithCapture("nvram", ["--print-config=boot-device"],
filter_stderr=True)
if len(buf) == 0:
log.error("Failed to determine nvram boot device")
return
boot_list = buf.strip().replace("\"", "").split()
log.debug("updateNVRAMBootList: boot_list = %s", boot_list)
buf = util.execWithCapture("ofpathname", [self.stage1_device.path],
filter_stderr=True)
if len(buf) > 0:
boot_disk = buf.strip()
else:
log.error("Failed to translate boot path into device name")
return
# Place the disk containing the PReP partition first.
# Remove all other occurances of it.
boot_list = [boot_disk] + [x for x in boot_list if x != boot_disk]
# The boot-device NVRAM variable has a maximum number of devices allowed,
# don't add more than the limit in the ibm,max-boot-devices OF property.
max_dev_path = "/sys/firmware/devicetree/base/ibm,max-boot-devices"
if os.access(max_dev_path, os.F_OK):
with open(max_dev_path, "rb") as f:
limit = int.from_bytes(f.read(4), byteorder='big')
boot_list = boot_list[:limit]
update_value = "boot-device=%s" % " ".join(boot_list)
rc = util.execWithRedirect("nvram", ["--update-config", update_value])
if rc:
log.error("Failed to update new boot device order")
def ifaceForHostIP(host):
route = util.execWithCapture("ip", ["route", "get", "to", host])
if not route:
log.error("Could not get interface for route to %s", host)
return ""
routeInfo = route.split()
if routeInfo[0] != host or len(routeInfo) < 5 or \
"dev" not in routeInfo or routeInfo.index("dev") > 3:
log.error('Unexpected "ip route get to %s" reply: %s', host, routeInfo)
return ""
return routeInfo[routeInfo.index("dev") + 1]
def _check_mount_point(self, mount_point):
"""Check a block device at the specified mount point."""
log.debug("Checking the %s mount point.", mount_point)
if not os.path.exists(mount_point):
return None
try:
block_device = execWithCapture("findmnt", ["-n", "-o", "SOURCE", mount_point]).strip()
return block_device or None
except (OSError, FileNotFoundError):
pass
return None
def iface_for_host_ip(host_ip):
"""Get interface used to access given host IP."""
route = util.execWithCapture("ip", ["route", "get", "to", host_ip])
if not route:
log.error("Could not get interface for route to %s", host_ip)
return ""
route_info = route.split()
if route_info[0] != host_ip or len(route_info) < 5 or \
"dev" not in route_info or route_info.index("dev") > 3:
log.error('Unexpected "ip route get to %s" reply: %s', host_ip, route_info)
return ""
return route_info[route_info.index("dev") + 1]
def iface_for_host_ip(host_ip):
"""Get interface used to access given host IP."""
route = util.execWithCapture("ip", ["route", "get", "to", host_ip])
if not route:
log.error("Could not get interface for route to %s", host_ip)
return ""
route_info = route.split()
if route_info[0] != host_ip or len(route_info) < 5 or \
"dev" not in route_info or route_info.index("dev") > 3:
log.error('Unexpected "ip route get to %s" reply: %s', host_ip, route_info)
return ""
return route_info[route_info.index("dev") + 1]
def get_df_map():
"""Return (mountpoint -> size available) mapping."""
output = util.execWithCapture('df', ['--output=target,avail'])
output = output.rstrip()
lines = output.splitlines()
structured = {}
for line in lines:
key, val = line.rsplit(maxsplit=1)
if not key.startswith('/'):
continue
structured[key] = Size(int(val) * 1024)
# Add /var/tmp/ if this is a directory or image installation
if not conf.target.is_hardware:
var_tmp = os.statvfs("/var/tmp")
structured["/var/tmp"] = Size(var_tmp.f_frsize * var_tmp.f_bfree)
return structured
def write_config(self):
config_path = "%s%s" % (conf.target.system_root, self.efi_config_file)
with open(config_path, "w") as fd:
grub_dir = self.config_dir
fs_uuid = self.stage2_device.format.uuid
grub_dir = util.execWithCapture("grub2-mkrelpath", [grub_dir],
root=conf.target.system_root)
if not grub_dir:
raise BootLoaderError("Could not get GRUB directory path")
fd.write("search --no-floppy --fs-uuid --set=dev %s\n" % fs_uuid)
fd.write("set prefix=($dev)%s\n" % grub_dir)
fd.write("export $prefix\n")
fd.write("configfile $prefix/grub.cfg\n")
super().write_config()
def _encrypt_password(self):
"""Make sure self.encrypted_password is set up properly."""
if self.encrypted_password:
return
if not self.password:
raise RuntimeError("cannot encrypt empty password")
(pread, pwrite) = os.pipe()
passwords = "%s\n%s\n" % (self.password, self.password)
os.write(pwrite, passwords.encode("utf-8"))
os.close(pwrite)
buf = util.execWithCapture("grub2-mkpasswd-pbkdf2", [],
stdin=pread,
root=util.getSysroot())
os.close(pread)
self.encrypted_password = buf.split()[-1].strip()
if not self.encrypted_password.startswith("grub.pbkdf2."):
raise BootLoaderError("failed to encrypt boot loader password")
def is_service_installed(service, root="/"):
"""Is a systemd service installed?
Runs 'systemctl list-unit-files' to determine if the service exists.
:param str service: name of the service to check
:param str root: path to the sysroot, defaults to installation environment
"""
if not service.endswith(".service"):
service += ".service"
args = ["list-unit-files", service, "--no-legend"]
if root != "/":
args += ["--root", root]
unit_file = execWithCapture("systemctl", args)
return bool(unit_file)
def _is_language_support_installed(self, lang):
"""Is the support for the specified language installed?
The language is considered to be supported if we are not
able to determine the supported locales due to missing tools.
:param lang: a value for the LANG locale variable
:return: False if the locale is known to be not supported, otherwise True
"""
try:
output = execWithCapture("locale", ["-a"], root=self._sysroot)
except OSError as e:
log.warning("Couldn't get supported locales: %s", e)
return True
match = find_best_locale_match(lang, output.splitlines())
log.debug("The '%s' locale matched '%s'.", lang, match)
return bool(match)
def _df_map():
"""Return (mountpoint -> size available) mapping."""
output = util.execWithCapture('df', ['--output=target,avail'])
output = output.rstrip()
lines = output.splitlines()
structured = {}
for line in lines:
items = line.split()
key = items[0]
val = items[1]
if not key.startswith('/'):
continue
structured[key] = Size(int(val) * 1024)
# Add /var/tmp/ if this is a directory or image installation
if flags.dirInstall or flags.imageInstall:
var_tmp = os.statvfs("/var/tmp")
structured["/var/tmp"] = Size(var_tmp.f_frsize * var_tmp.f_bfree)
return structured
def _encrypt_password(self):
"""Make sure self.encrypted_password is set up properly."""
if self.encrypted_password:
return
if not self.password:
raise RuntimeError("cannot encrypt empty password")
(pread, pwrite) = os.pipe()
passwords = "%s\n%s\n" % (self.password, self.password)
os.write(pwrite, passwords.encode("utf-8"))
os.close(pwrite)
buf = util.execWithCapture("grub2-mkpasswd-pbkdf2", [],
stdin=pread,
root=conf.target.system_root)
os.close(pread)
self.encrypted_password = buf.split()[-1].strip()
if not self.encrypted_password.startswith("grub.pbkdf2."):
raise BootLoaderError("failed to encrypt boot loader password")
def get_default_route_iface(family="inet"):
"""Get the device having default route.
:return: the name of the network device having default route
"""
routes = util.execWithCapture("ip", ["-f", family, "route", "show"])
if not routes:
log.debug("Could not get default %s route device", family)
return None
for line in routes.split("\n"):
if line.startswith("default"):
parts = line.split()
if len(parts) >= 5 and parts[3] == "dev":
return parts[4]
else:
log.debug("Could not parse default %s route device", family)
return None
return None
def get_default_route_iface(family="inet"):
"""Get the device having default route.
:return: the name of the network device having default route
"""
routes = util.execWithCapture("ip", ["-f", family, "route", "show"])
if not routes:
log.debug("Could not get default %s route device", family)
return None
for line in routes.split("\n"):
if line.startswith("default"):
parts = line.split()
if len(parts) >= 5 and parts[3] == "dev":
return parts[4]
else:
log.debug("Could not parse default %s route device", family)
return None
return None
def install(self, args=None):
buf = util.execWithCapture("zipl", [], root=util.getSysroot())
for line in buf.splitlines():
if line.startswith("Preparing boot device: "):
# Output here may look like:
# Preparing boot device: dasdb (0200).
# Preparing boot device: dasdl.
# We want to extract the device name and pass that.
name = re.sub(r".+?: ", "", line)
self.stage1_name = re.sub(r"(\s\(.+\))?\.$", "", name)
# a limitation of s390x is that the kernel parameter list must not
# exceed 896 bytes; there is nothing we can do about this, so just
# catch the error and show it to the user instead of crashing
elif line.startswith("Error: The length of the parameters "):
errorHandler.cb(ZIPLError(line))
if not self.stage1_name:
raise BootLoaderError("could not find IPL device")
# do the reipl
util.reIPL(self.stage1_name)
def install(self, args=None):
buf = util.execWithCapture("zipl", [], root=conf.target.system_root)
for line in buf.splitlines():
if line.startswith("Preparing boot device: "):
# Output here may look like:
# Preparing boot device: dasdb (0200).
# Preparing boot device: dasdl.
# We want to extract the device name and pass that.
name = re.sub(r".+?: ", "", line)
self.stage1_name = re.sub(r"(\s\(.+\))?\.$", "", name)
# a limitation of s390x is that the kernel parameter list must not
# exceed 896 bytes; there is nothing we can do about this, so just
# catch the error and show it to the user instead of crashing
elif line.startswith("Error: The length of the parameters "):
raise BootLoaderError(line)
if not self.stage1_name:
raise BootLoaderError("could not find IPL device")
# do the reipl
util.reIPL(self.stage1_name)
def test_exec_with_capture_empty(self):
"""Test execWithCapture with no output"""
# check that the output is an empty string
assert util.execWithCapture("/bin/sh", ["-c", "exit 0"]) == ""
def exec_with_capture_empty_test(self):
"""Test execWithCapture with no output"""
# check that the output is an empty string
self.assertEqual(util.execWithCapture("/bin/sh", ["-c", "exit 0"]), "")
def exec_with_capture_empty_test(self):
"""Test execWithCapture with no output"""
# check that the output is an empty string
self.assertEqual(util.execWithCapture("/bin/sh", ["-c", "exit 0"]), "")
def lsblk_callback():
"""Callback to get info about block devices."""
options = "NAME,SIZE,OWNER,GROUP,MODE,FSTYPE,LABEL,UUID,PARTUUID,FSAVAIL,FSUSE%,MOUNTPOINT"
return util.execWithCapture("lsblk", ["--bytes", "-o", options])
def lsblk_callback():
"""Callback to get info about block devices."""
return util.execWithCapture("lsblk", ["--perms", "--fs", "--bytes"])
def nmcli_dev_list_callback():
"""Callback to get info about network devices."""
return util.execWithCapture("nmcli", ["device", "show"])
def lsblk_callback():
"""Callback to get info about block devices."""
return util.execWithCapture("lsblk", ["--perms", "--fs", "--bytes"])
def nmcli_dev_list_callback():
"""Callback to get info about network devices."""
return util.execWithCapture("nmcli", ["device", "show"])
