# or implied, of GRNET S.A.
from image_creator.os_type.unix import Unix, sysprep
-from image_creator.util import warn, output
import re
import time
class Linux(Unix):
- def __init__(self, rootdev, ghandler):
- super(Linux, self).__init__(rootdev, ghandler)
+ """OS class for Linux"""
+ def __init__(self, rootdev, ghandler, output):
+ super(Linux, self).__init__(rootdev, ghandler, output)
self._uuid = dict()
self._persistent = re.compile('/dev/[hsv]d[a-z][1-9]*')
+ self.meta["USERS"] = " ".join(self._get_passworded_users())
+
+ # Delete the USERS metadata if empty
+ if not len(self.meta['USERS']):
+ self.out.warn("No passworded users found!")
+ del self.meta['USERS']
+
+ def _get_passworded_users(self):
+ users = []
+ regexp = re.compile('(\S+):((?:!\S+)|(?:[^!*]\S+)|):(?:\S*:){6}')
+
+ for line in self.g.cat('/etc/shadow').splitlines():
+ match = regexp.match(line)
+ if not match:
+ continue
+
+ user, passwd = match.groups()
+ if len(passwd) > 0 and passwd[0] == '!':
+ self.out.warn("Ignoring locked %s account." % user)
+ else:
+ users.append(user)
+
+ return users
+
def is_persistent(self, dev):
return not self._persistent.match(dev)
if dev in self._uuid:
return self._uuid[dev]
- for attr in self.g.blkid(dev):
- if attr[0] == 'UUID':
- self._uuid[dev] = attr[1]
- return attr[1]
+ uuid = self.g.vfs_uuid(dev)
+ assert len(uuid)
+ self._uuid[dev] = uuid
+ return uuid
+
+ @sysprep(enabled=False)
+ def remove_user_accounts(self, print_header=True):
+ """Remove all user accounts with id greater than 1000"""
+
+ if print_header:
+ self.out.output("Removing all user accounts with id greater than "
+ "1000")
+
+ if 'USERS' not in self.meta:
+ return
+
+ # Remove users from /etc/passwd
+ passwd = []
+ removed_users = {}
+ metadata_users = self.meta['USERS'].split()
+ for line in self.g.cat('/etc/passwd').splitlines():
+ fields = line.split(':')
+ if int(fields[2]) > 1000:
+ removed_users[fields[0]] = fields
+ # remove it from the USERS metadata too
+ if fields[0] in metadata_users:
+ metadata_users.remove(fields[0])
+ else:
+ passwd.append(':'.join(fields))
+
+ self.meta['USERS'] = " ".join(metadata_users)
+
+ # Delete the USERS metadata if empty
+ if not len(self.meta['USERS']):
+ del self.meta['USERS']
+
+ self.g.write('/etc/passwd', '\n'.join(passwd) + '\n')
+
+ # Remove the corresponding /etc/shadow entries
+ shadow = []
+ for line in self.g.cat('/etc/shadow').splitlines():
+ fields = line.split(':')
+ if fields[0] not in removed_users:
+ shadow.append(':'.join(fields))
+
+ self.g.write('/etc/shadow', "\n".join(shadow) + '\n')
+
+ # Remove the corresponding /etc/group entries
+ group = []
+ for line in self.g.cat('/etc/group').splitlines():
+ fields = line.split(':')
+ # Remove groups tha have the same name as the removed users
+ if fields[0] not in removed_users:
+ group.append(':'.join(fields))
+
+ self.g.write('/etc/group', '\n'.join(group) + '\n')
+
+ # Remove home directories
+ for home in [field[5] for field in removed_users.values()]:
+ if self.g.is_dir(home) and home.startswith('/home/'):
+ self.g.rm_rf(home)
+
+ @sysprep()
+ def cleanup_passwords(self, print_header=True):
+ """Remove all passwords and lock all user accounts"""
+
+ if print_header:
+ self.out.output("Cleaning up passwords & locking all user "
+ "accounts")
+
+ shadow = []
+
+ for line in self.g.cat('/etc/shadow').splitlines():
+ fields = line.split(':')
+ if fields[1] not in ('*', '!'):
+ fields[1] = '!'
+
+ shadow.append(":".join(fields))
+
+ self.g.write('/etc/shadow', "\n".join(shadow) + '\n')
@sysprep()
def fix_acpid(self, print_header=True):
"""
if print_header:
- output('Fixing acpid powerdown action')
+ self.out.output('Fixing acpid powerdown action')
powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
- 'shutdown -h now \"Power button pressed\"\n'
+ 'shutdown -h now "Power button pressed"\n'
events_dir = '/etc/acpi/events'
if not self.g.is_dir(events_dir):
- warn("No acpid event directory found")
+ self.out.warn("No acpid event directory found")
return
event_exp = re.compile('event=(.+)', re.I)
action = m.group(1)
continue
- if event.strip() == "button[ /]power":
+ if event.strip() in ("button[ /]power", "button/power.*"):
if action:
if not self.g.is_file(action):
- warn("Acpid action file: %s does not exist" % action)
+ self.out.warn("Acpid action file: %s does not exist" %
+ action)
return
- self.g.copy_file_to_file(action, \
- "%s.orig.snf-image-creator-%d" % (action, time.time()))
+ self.g.copy_file_to_file(action,
+ "%s.orig.snf-image-creator-%d" %
+ (action, time.time()))
self.g.write(action, powerbtn_action)
return
else:
- warn("Acpid event file %s does not contain and action")
+ self.out.warn("Acpid event file %s does not contain and "
+ "action")
return
elif event.strip() == ".*":
- warn("Found action `.*'. Don't know how to handle this." \
- " Please edit \%s' image file manually to make the " \
- "system immediatelly shutdown when an power button acpi " \
- "event occures" % action)
+ self.out.warn("Found action `.*'. Don't know how to handle "
+ "this. Please edit `%s' image file manually to "
+ "make the system immediatelly shutdown when an "
+ "power button acpi event occures." %
+ action.strip().split()[0])
return
+ self.out.warn("No acpi power button event found!")
+
@sysprep()
- def persistent_net_rules(self, print_header=True):
+ def remove_persistent_net_rules(self, print_header=True):
"""Remove udev rules that will keep network interface names persistent
after hardware changes and reboots. Those rules will be created again
the next time the image runs.
"""
if print_header:
- output('Removing persistent network interface names')
+ self.out.output('Removing persistent network interface names')
rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
if self.g.is_file(rule_file):
self.g.rm(rule_file)
@sysprep()
- def persistent_devs(self, print_header=True):
+ def remove_swap_entry(self, print_header=True):
+ """Remove swap entry from /etc/fstab. If swap is the last partition
+ then the partition will be removed when shrinking is performed. If the
+ swap partition is not the last partition in the disk or if you are not
+ going to shrink the image you should probably disable this.
+ """
+
+ if print_header:
+ self.out.output('Removing swap entry from fstab')
+
+ new_fstab = ""
+ fstab = self.g.cat('/etc/fstab')
+ for line in fstab.splitlines():
+
+ entry = line.split('#')[0].strip().split()
+ if len(entry) == 6 and entry[2] == 'swap':
+ continue
+
+ new_fstab += "%s\n" % line
+
+ self.g.write('/etc/fstab', new_fstab)
+
+ @sysprep()
+ def use_persistent_block_device_names(self, print_header=True):
"""Scan fstab & grub configuration files and replace all non-persistent
- device appearences with UUIDs.
+ device references with UUIDs.
"""
if print_header:
- output('Replacing fstab & grub non-persistent device appearences')
+ self.out.output("Replacing fstab & grub non-persistent device "
+ "references")
# convert all devices in fstab to persistent
persistent_root = self._persistent_fstab()
entry = line.split()
if len(entry) != 6:
- warn("Detected abnormal entry in fstab")
+ self.out.warn("Detected abnormal entry in fstab")
return orig, "", ""
dev = entry[0]
projects / snf-image-creator / blobdiff