root / image_creator / os_type / linux.py @ 121f3bc0
History | View | Annotate | Download (12.7 kB)
1 | 121f3bc0 | Nikos Skalkotos | # -*- coding: utf-8 -*-
|
---|---|---|---|
2 | 121f3bc0 | Nikos Skalkotos | #
|
3 | ae48a082 | Nikos Skalkotos | # Copyright 2012 GRNET S.A. All rights reserved.
|
4 | ae48a082 | Nikos Skalkotos | #
|
5 | ae48a082 | Nikos Skalkotos | # Redistribution and use in source and binary forms, with or
|
6 | ae48a082 | Nikos Skalkotos | # without modification, are permitted provided that the following
|
7 | ae48a082 | Nikos Skalkotos | # conditions are met:
|
8 | ae48a082 | Nikos Skalkotos | #
|
9 | ae48a082 | Nikos Skalkotos | # 1. Redistributions of source code must retain the above
|
10 | ae48a082 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
|
11 | ae48a082 | Nikos Skalkotos | # disclaimer.
|
12 | ae48a082 | Nikos Skalkotos | #
|
13 | ae48a082 | Nikos Skalkotos | # 2. Redistributions in binary form must reproduce the above
|
14 | ae48a082 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
|
15 | ae48a082 | Nikos Skalkotos | # disclaimer in the documentation and/or other materials
|
16 | ae48a082 | Nikos Skalkotos | # provided with the distribution.
|
17 | ae48a082 | Nikos Skalkotos | #
|
18 | ae48a082 | Nikos Skalkotos | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
19 | ae48a082 | Nikos Skalkotos | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
20 | ae48a082 | Nikos Skalkotos | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
21 | ae48a082 | Nikos Skalkotos | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
22 | ae48a082 | Nikos Skalkotos | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
23 | ae48a082 | Nikos Skalkotos | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
24 | ae48a082 | Nikos Skalkotos | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
25 | ae48a082 | Nikos Skalkotos | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
26 | ae48a082 | Nikos Skalkotos | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
27 | ae48a082 | Nikos Skalkotos | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
28 | ae48a082 | Nikos Skalkotos | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
29 | ae48a082 | Nikos Skalkotos | # POSSIBILITY OF SUCH DAMAGE.
|
30 | ae48a082 | Nikos Skalkotos | #
|
31 | ae48a082 | Nikos Skalkotos | # The views and conclusions contained in the software and
|
32 | ae48a082 | Nikos Skalkotos | # documentation are those of the authors and should not be
|
33 | ae48a082 | Nikos Skalkotos | # interpreted as representing official policies, either expressed
|
34 | ae48a082 | Nikos Skalkotos | # or implied, of GRNET S.A.
|
35 | ae48a082 | Nikos Skalkotos | |
36 | 121f3bc0 | Nikos Skalkotos | """This module hosts OS-specific code for Linux"""
|
37 | 121f3bc0 | Nikos Skalkotos | |
38 | f165adc0 | Nikos Skalkotos | from image_creator.os_type.unix import Unix, sysprep |
39 | 22a6d232 | Nikos Skalkotos | |
40 | a83f5185 | Nikos Skalkotos | import re |
41 | 3f70f242 | Nikos Skalkotos | import time |
42 | aa2062ba | Nikos Skalkotos | |
43 | 8c574358 | Nikos Skalkotos | |
44 | aa2062ba | Nikos Skalkotos | class Linux(Unix): |
45 | 88f83027 | Nikos Skalkotos | """OS class for Linux"""
|
46 | e77e66a9 | Nikos Skalkotos | def __init__(self, rootdev, ghandler, output): |
47 | e77e66a9 | Nikos Skalkotos | super(Linux, self).__init__(rootdev, ghandler, output) |
48 | a83f5185 | Nikos Skalkotos | self._uuid = dict() |
49 | a83f5185 | Nikos Skalkotos | self._persistent = re.compile('/dev/[hsv]d[a-z][1-9]*') |
50 | a83f5185 | Nikos Skalkotos | |
51 | 2dcd42b7 | Nikos Skalkotos | @sysprep(enabled=False) |
52 | 2dcd42b7 | Nikos Skalkotos | def remove_user_accounts(self, print_header=True): |
53 | 2dcd42b7 | Nikos Skalkotos | """Remove all user accounts with id greater than 1000"""
|
54 | 2dcd42b7 | Nikos Skalkotos | |
55 | 2dcd42b7 | Nikos Skalkotos | if print_header:
|
56 | 2dcd42b7 | Nikos Skalkotos | self.out.output("Removing all user accounts with id greater than " |
57 | 2dcd42b7 | Nikos Skalkotos | "1000")
|
58 | 2dcd42b7 | Nikos Skalkotos | |
59 | 2dcd42b7 | Nikos Skalkotos | if 'USERS' not in self.meta: |
60 | 2dcd42b7 | Nikos Skalkotos | return
|
61 | 2dcd42b7 | Nikos Skalkotos | |
62 | 2dcd42b7 | Nikos Skalkotos | # Remove users from /etc/passwd
|
63 | 2dcd42b7 | Nikos Skalkotos | passwd = [] |
64 | 2dcd42b7 | Nikos Skalkotos | removed_users = {} |
65 | 2dcd42b7 | Nikos Skalkotos | metadata_users = self.meta['USERS'].split() |
66 | 2dcd42b7 | Nikos Skalkotos | for line in self.g.cat('/etc/passwd').splitlines(): |
67 | 2dcd42b7 | Nikos Skalkotos | fields = line.split(':')
|
68 | 2dcd42b7 | Nikos Skalkotos | if int(fields[2]) > 1000: |
69 | 2dcd42b7 | Nikos Skalkotos | removed_users[fields[0]] = fields
|
70 | 2dcd42b7 | Nikos Skalkotos | # remove it from the USERS metadata too
|
71 | 2dcd42b7 | Nikos Skalkotos | if fields[0] in metadata_users: |
72 | 2dcd42b7 | Nikos Skalkotos | metadata_users.remove(fields[0])
|
73 | 2dcd42b7 | Nikos Skalkotos | else:
|
74 | 2dcd42b7 | Nikos Skalkotos | passwd.append(':'.join(fields))
|
75 | 2dcd42b7 | Nikos Skalkotos | |
76 | 2dcd42b7 | Nikos Skalkotos | self.meta['USERS'] = " ".join(metadata_users) |
77 | 2dcd42b7 | Nikos Skalkotos | |
78 | 2dcd42b7 | Nikos Skalkotos | # Delete the USERS metadata if empty
|
79 | 2dcd42b7 | Nikos Skalkotos | if not len(self.meta['USERS']): |
80 | 2dcd42b7 | Nikos Skalkotos | del self.meta['USERS'] |
81 | 2dcd42b7 | Nikos Skalkotos | |
82 | 2dcd42b7 | Nikos Skalkotos | self.g.write('/etc/passwd', '\n'.join(passwd) + '\n') |
83 | 2dcd42b7 | Nikos Skalkotos | |
84 | 2dcd42b7 | Nikos Skalkotos | # Remove the corresponding /etc/shadow entries
|
85 | 2dcd42b7 | Nikos Skalkotos | shadow = [] |
86 | 2dcd42b7 | Nikos Skalkotos | for line in self.g.cat('/etc/shadow').splitlines(): |
87 | 2dcd42b7 | Nikos Skalkotos | fields = line.split(':')
|
88 | 2dcd42b7 | Nikos Skalkotos | if fields[0] not in removed_users: |
89 | 2dcd42b7 | Nikos Skalkotos | shadow.append(':'.join(fields))
|
90 | 2dcd42b7 | Nikos Skalkotos | |
91 | 2dcd42b7 | Nikos Skalkotos | self.g.write('/etc/shadow', "\n".join(shadow) + '\n') |
92 | 2dcd42b7 | Nikos Skalkotos | |
93 | 2dcd42b7 | Nikos Skalkotos | # Remove the corresponding /etc/group entries
|
94 | 2dcd42b7 | Nikos Skalkotos | group = [] |
95 | 2dcd42b7 | Nikos Skalkotos | for line in self.g.cat('/etc/group').splitlines(): |
96 | 2dcd42b7 | Nikos Skalkotos | fields = line.split(':')
|
97 | 2dcd42b7 | Nikos Skalkotos | # Remove groups tha have the same name as the removed users
|
98 | 2dcd42b7 | Nikos Skalkotos | if fields[0] not in removed_users: |
99 | 2dcd42b7 | Nikos Skalkotos | group.append(':'.join(fields))
|
100 | 2dcd42b7 | Nikos Skalkotos | |
101 | 2dcd42b7 | Nikos Skalkotos | self.g.write('/etc/group', '\n'.join(group) + '\n') |
102 | 2dcd42b7 | Nikos Skalkotos | |
103 | 2dcd42b7 | Nikos Skalkotos | # Remove home directories
|
104 | 2dcd42b7 | Nikos Skalkotos | for home in [field[5] for field in removed_users.values()]: |
105 | 2dcd42b7 | Nikos Skalkotos | if self.g.is_dir(home) and home.startswith('/home/'): |
106 | 2dcd42b7 | Nikos Skalkotos | self.g.rm_rf(home)
|
107 | 2dcd42b7 | Nikos Skalkotos | |
108 | 2dcd42b7 | Nikos Skalkotos | @sysprep()
|
109 | 2dcd42b7 | Nikos Skalkotos | def cleanup_passwords(self, print_header=True): |
110 | 2dcd42b7 | Nikos Skalkotos | """Remove all passwords and lock all user accounts"""
|
111 | 2dcd42b7 | Nikos Skalkotos | |
112 | 2dcd42b7 | Nikos Skalkotos | if print_header:
|
113 | 2dcd42b7 | Nikos Skalkotos | self.out.output("Cleaning up passwords & locking all user " |
114 | 2dcd42b7 | Nikos Skalkotos | "accounts")
|
115 | 2dcd42b7 | Nikos Skalkotos | |
116 | 2dcd42b7 | Nikos Skalkotos | shadow = [] |
117 | 2dcd42b7 | Nikos Skalkotos | |
118 | 2dcd42b7 | Nikos Skalkotos | for line in self.g.cat('/etc/shadow').splitlines(): |
119 | 2dcd42b7 | Nikos Skalkotos | fields = line.split(':')
|
120 | 2dcd42b7 | Nikos Skalkotos | if fields[1] not in ('*', '!'): |
121 | 2dcd42b7 | Nikos Skalkotos | fields[1] = '!' |
122 | 2dcd42b7 | Nikos Skalkotos | |
123 | 2dcd42b7 | Nikos Skalkotos | shadow.append(":".join(fields))
|
124 | 2dcd42b7 | Nikos Skalkotos | |
125 | 2dcd42b7 | Nikos Skalkotos | self.g.write('/etc/shadow', "\n".join(shadow) + '\n') |
126 | 2dcd42b7 | Nikos Skalkotos | |
127 | f165adc0 | Nikos Skalkotos | @sysprep()
|
128 | f165adc0 | Nikos Skalkotos | def fix_acpid(self, print_header=True): |
129 | d144e954 | Nikos Skalkotos | """Replace acpid powerdown action scripts to immediately shutdown the
|
130 | d144e954 | Nikos Skalkotos | system without checking if a GUI is running.
|
131 | 9cbb5794 | Nikos Skalkotos | """
|
132 | 22a6d232 | Nikos Skalkotos | |
133 | 3f70f242 | Nikos Skalkotos | if print_header:
|
134 | e77e66a9 | Nikos Skalkotos | self.out.output('Fixing acpid powerdown action') |
135 | 3f70f242 | Nikos Skalkotos | |
136 | 3f70f242 | Nikos Skalkotos | powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
|
137 | f99fe99d | Nikos Skalkotos | 'shutdown -h now "Power button pressed"\n'
|
138 | 3f70f242 | Nikos Skalkotos | |
139 | 3f70f242 | Nikos Skalkotos | events_dir = '/etc/acpi/events'
|
140 | 3f70f242 | Nikos Skalkotos | if not self.g.is_dir(events_dir): |
141 | e77e66a9 | Nikos Skalkotos | self.out.warn("No acpid event directory found") |
142 | 3f70f242 | Nikos Skalkotos | return
|
143 | 3f70f242 | Nikos Skalkotos | |
144 | 3f70f242 | Nikos Skalkotos | event_exp = re.compile('event=(.+)', re.I)
|
145 | 3f70f242 | Nikos Skalkotos | action_exp = re.compile('action=(.+)', re.I)
|
146 | 121f3bc0 | Nikos Skalkotos | for events_file in self.g.readdir(events_dir): |
147 | 121f3bc0 | Nikos Skalkotos | if events_file['ftyp'] != 'r': |
148 | 3f70f242 | Nikos Skalkotos | continue
|
149 | 3f70f242 | Nikos Skalkotos | |
150 | 121f3bc0 | Nikos Skalkotos | fullpath = "%s/%s" % (events_dir, events_file['name']) |
151 | 3f70f242 | Nikos Skalkotos | event = ""
|
152 | 3f70f242 | Nikos Skalkotos | action = ""
|
153 | 3f70f242 | Nikos Skalkotos | for line in self.g.cat(fullpath).splitlines(): |
154 | 121f3bc0 | Nikos Skalkotos | match = event_exp.match(line) |
155 | 121f3bc0 | Nikos Skalkotos | if match:
|
156 | 121f3bc0 | Nikos Skalkotos | event = match.group(1)
|
157 | 3f70f242 | Nikos Skalkotos | continue
|
158 | 121f3bc0 | Nikos Skalkotos | match = action_exp.match(line) |
159 | 121f3bc0 | Nikos Skalkotos | if match:
|
160 | 121f3bc0 | Nikos Skalkotos | action = match.group(1)
|
161 | 3f70f242 | Nikos Skalkotos | continue
|
162 | 3f70f242 | Nikos Skalkotos | |
163 | c0f3abdc | Nikos Skalkotos | if event.strip() in ("button[ /]power", "button/power.*"): |
164 | 3f70f242 | Nikos Skalkotos | if action:
|
165 | 3f70f242 | Nikos Skalkotos | if not self.g.is_file(action): |
166 | e77e66a9 | Nikos Skalkotos | self.out.warn("Acpid action file: %s does not exist" % |
167 | f99fe99d | Nikos Skalkotos | action) |
168 | 3f70f242 | Nikos Skalkotos | return
|
169 | f99fe99d | Nikos Skalkotos | self.g.copy_file_to_file(action,
|
170 | f99fe99d | Nikos Skalkotos | "%s.orig.snf-image-creator-%d" %
|
171 | f99fe99d | Nikos Skalkotos | (action, time.time())) |
172 | d144e954 | Nikos Skalkotos | self.g.write(action, powerbtn_action)
|
173 | 3f70f242 | Nikos Skalkotos | return
|
174 | 3f70f242 | Nikos Skalkotos | else:
|
175 | f99fe99d | Nikos Skalkotos | self.out.warn("Acpid event file %s does not contain and " |
176 | f99fe99d | Nikos Skalkotos | "action")
|
177 | 3f70f242 | Nikos Skalkotos | return
|
178 | 3f70f242 | Nikos Skalkotos | elif event.strip() == ".*": |
179 | f99fe99d | Nikos Skalkotos | self.out.warn("Found action `.*'. Don't know how to handle " |
180 | f99fe99d | Nikos Skalkotos | "this. Please edit `%s' image file manually to "
|
181 | f99fe99d | Nikos Skalkotos | "make the system immediatelly shutdown when an "
|
182 | f99fe99d | Nikos Skalkotos | "power button acpi event occures." %
|
183 | f99fe99d | Nikos Skalkotos | action.strip().split()[0])
|
184 | 3f70f242 | Nikos Skalkotos | return
|
185 | 3f70f242 | Nikos Skalkotos | |
186 | c0f3abdc | Nikos Skalkotos | self.out.warn("No acpi power button event found!") |
187 | c0f3abdc | Nikos Skalkotos | |
188 | f165adc0 | Nikos Skalkotos | @sysprep()
|
189 | 755e1885 | Nikos Skalkotos | def remove_persistent_net_rules(self, print_header=True): |
190 | 9cbb5794 | Nikos Skalkotos | """Remove udev rules that will keep network interface names persistent
|
191 | 9cbb5794 | Nikos Skalkotos | after hardware changes and reboots. Those rules will be created again
|
192 | 9cbb5794 | Nikos Skalkotos | the next time the image runs.
|
193 | 9cbb5794 | Nikos Skalkotos | """
|
194 | 22a6d232 | Nikos Skalkotos | |
195 | 3f70f242 | Nikos Skalkotos | if print_header:
|
196 | e77e66a9 | Nikos Skalkotos | self.out.output('Removing persistent network interface names') |
197 | 22a6d232 | Nikos Skalkotos | |
198 | 9cbb5794 | Nikos Skalkotos | rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
|
199 | 9cbb5794 | Nikos Skalkotos | if self.g.is_file(rule_file): |
200 | 9cbb5794 | Nikos Skalkotos | self.g.rm(rule_file)
|
201 | 9cbb5794 | Nikos Skalkotos | |
202 | f165adc0 | Nikos Skalkotos | @sysprep()
|
203 | 4a2fd05c | Nikos Skalkotos | def remove_swap_entry(self, print_header=True): |
204 | 4a2fd05c | Nikos Skalkotos | """Remove swap entry from /etc/fstab. If swap is the last partition
|
205 | 4a2fd05c | Nikos Skalkotos | then the partition will be removed when shrinking is performed. If the
|
206 | 4a2fd05c | Nikos Skalkotos | swap partition is not the last partition in the disk or if you are not
|
207 | 4a2fd05c | Nikos Skalkotos | going to shrink the image you should probably disable this.
|
208 | 4a2fd05c | Nikos Skalkotos | """
|
209 | 4a2fd05c | Nikos Skalkotos | |
210 | 4a2fd05c | Nikos Skalkotos | if print_header:
|
211 | e77e66a9 | Nikos Skalkotos | self.out.output('Removing swap entry from fstab') |
212 | 4a2fd05c | Nikos Skalkotos | |
213 | 4a2fd05c | Nikos Skalkotos | new_fstab = ""
|
214 | 4a2fd05c | Nikos Skalkotos | fstab = self.g.cat('/etc/fstab') |
215 | 4a2fd05c | Nikos Skalkotos | for line in fstab.splitlines(): |
216 | 4a2fd05c | Nikos Skalkotos | |
217 | 4a2fd05c | Nikos Skalkotos | entry = line.split('#')[0].strip().split() |
218 | 4a2fd05c | Nikos Skalkotos | if len(entry) == 6 and entry[2] == 'swap': |
219 | 4a2fd05c | Nikos Skalkotos | continue
|
220 | 4a2fd05c | Nikos Skalkotos | |
221 | 4a2fd05c | Nikos Skalkotos | new_fstab += "%s\n" % line
|
222 | 4a2fd05c | Nikos Skalkotos | |
223 | 4a2fd05c | Nikos Skalkotos | self.g.write('/etc/fstab', new_fstab) |
224 | 4a2fd05c | Nikos Skalkotos | |
225 | 4a2fd05c | Nikos Skalkotos | @sysprep()
|
226 | 755e1885 | Nikos Skalkotos | def use_persistent_block_device_names(self, print_header=True): |
227 | f165adc0 | Nikos Skalkotos | """Scan fstab & grub configuration files and replace all non-persistent
|
228 | dcf9274b | Vangelis Koukis | device references with UUIDs.
|
229 | 9cbb5794 | Nikos Skalkotos | """
|
230 | 22a6d232 | Nikos Skalkotos | |
231 | 3f70f242 | Nikos Skalkotos | if print_header:
|
232 | f99fe99d | Nikos Skalkotos | self.out.output("Replacing fstab & grub non-persistent device " |
233 | dcf9274b | Vangelis Koukis | "references")
|
234 | 22a6d232 | Nikos Skalkotos | |
235 | a83f5185 | Nikos Skalkotos | # convert all devices in fstab to persistent
|
236 | a83f5185 | Nikos Skalkotos | persistent_root = self._persistent_fstab()
|
237 | a83f5185 | Nikos Skalkotos | |
238 | a83f5185 | Nikos Skalkotos | # convert all devices in grub1 to persistent
|
239 | a83f5185 | Nikos Skalkotos | self._persistent_grub1(persistent_root)
|
240 | a83f5185 | Nikos Skalkotos | |
241 | 9cbb5794 | Nikos Skalkotos | def _persistent_grub1(self, new_root): |
242 | 121f3bc0 | Nikos Skalkotos | """Replaces non-persistent device name occurencies with persistent
|
243 | 121f3bc0 | Nikos Skalkotos | ones in GRUB1 configuration files.
|
244 | 121f3bc0 | Nikos Skalkotos | """
|
245 | a83f5185 | Nikos Skalkotos | if self.g.is_file('/boot/grub/menu.lst'): |
246 | a83f5185 | Nikos Skalkotos | grub1 = '/boot/grub/menu.lst'
|
247 | a83f5185 | Nikos Skalkotos | elif self.g.is_file('/etc/grub.conf'): |
248 | a83f5185 | Nikos Skalkotos | grub1 = '/etc/grub.conf'
|
249 | a83f5185 | Nikos Skalkotos | else:
|
250 | a83f5185 | Nikos Skalkotos | return
|
251 | a83f5185 | Nikos Skalkotos | |
252 | a83f5185 | Nikos Skalkotos | self.g.aug_init('/', 0) |
253 | a83f5185 | Nikos Skalkotos | try:
|
254 | a83f5185 | Nikos Skalkotos | roots = self.g.aug_match('/files%s/title[*]/kernel/root' % grub1) |
255 | a83f5185 | Nikos Skalkotos | for root in roots: |
256 | a83f5185 | Nikos Skalkotos | dev = self.g.aug_get(root)
|
257 | 121f3bc0 | Nikos Skalkotos | if not self._is_persistent(dev): |
258 | a83f5185 | Nikos Skalkotos | # This is not always correct. Grub may contain root entries
|
259 | a83f5185 | Nikos Skalkotos | # for other systems, but we only support 1 OS per hard
|
260 | a83f5185 | Nikos Skalkotos | # disk, so this shouldn't harm.
|
261 | a83f5185 | Nikos Skalkotos | self.g.aug_set(root, new_root)
|
262 | a83f5185 | Nikos Skalkotos | finally:
|
263 | a83f5185 | Nikos Skalkotos | self.g.aug_save()
|
264 | a83f5185 | Nikos Skalkotos | self.g.aug_close()
|
265 | a83f5185 | Nikos Skalkotos | |
266 | a83f5185 | Nikos Skalkotos | def _persistent_fstab(self): |
267 | 121f3bc0 | Nikos Skalkotos | """Replaces non-persistent device name occurencies in /etc/fstab with
|
268 | 121f3bc0 | Nikos Skalkotos | persistent ones.
|
269 | 121f3bc0 | Nikos Skalkotos | """
|
270 | a83f5185 | Nikos Skalkotos | mpoints = self.g.mountpoints()
|
271 | a83f5185 | Nikos Skalkotos | if len(mpoints) == 0: |
272 | a83f5185 | Nikos Skalkotos | pass # TODO: error handling |
273 | a83f5185 | Nikos Skalkotos | |
274 | a83f5185 | Nikos Skalkotos | device_dict = dict([[mpoint, dev] for dev, mpoint in mpoints]) |
275 | a83f5185 | Nikos Skalkotos | |
276 | a83f5185 | Nikos Skalkotos | root_dev = None
|
277 | a83f5185 | Nikos Skalkotos | new_fstab = ""
|
278 | a83f5185 | Nikos Skalkotos | fstab = self.g.cat('/etc/fstab') |
279 | a83f5185 | Nikos Skalkotos | for line in fstab.splitlines(): |
280 | a83f5185 | Nikos Skalkotos | |
281 | a83f5185 | Nikos Skalkotos | line, dev, mpoint = self._convert_fstab_line(line, device_dict)
|
282 | a83f5185 | Nikos Skalkotos | new_fstab += "%s\n" % line
|
283 | a83f5185 | Nikos Skalkotos | |
284 | a83f5185 | Nikos Skalkotos | if mpoint == '/': |
285 | a83f5185 | Nikos Skalkotos | root_dev = dev |
286 | a83f5185 | Nikos Skalkotos | |
287 | a83f5185 | Nikos Skalkotos | self.g.write('/etc/fstab', new_fstab) |
288 | a83f5185 | Nikos Skalkotos | if root_dev is None: |
289 | a83f5185 | Nikos Skalkotos | pass # TODO: error handling |
290 | a83f5185 | Nikos Skalkotos | |
291 | a83f5185 | Nikos Skalkotos | return root_dev
|
292 | a83f5185 | Nikos Skalkotos | |
293 | a83f5185 | Nikos Skalkotos | def _convert_fstab_line(self, line, devices): |
294 | 121f3bc0 | Nikos Skalkotos | """Replace non-persistent device names in an fstab line to their UUID
|
295 | 121f3bc0 | Nikos Skalkotos | equivalent
|
296 | 121f3bc0 | Nikos Skalkotos | """
|
297 | a83f5185 | Nikos Skalkotos | orig = line |
298 | a83f5185 | Nikos Skalkotos | line = line.split('#')[0].strip() |
299 | a83f5185 | Nikos Skalkotos | if len(line) == 0: |
300 | a83f5185 | Nikos Skalkotos | return orig, "", "" |
301 | a83f5185 | Nikos Skalkotos | |
302 | a83f5185 | Nikos Skalkotos | entry = line.split() |
303 | a83f5185 | Nikos Skalkotos | if len(entry) != 6: |
304 | e77e66a9 | Nikos Skalkotos | self.out.warn("Detected abnormal entry in fstab") |
305 | a83f5185 | Nikos Skalkotos | return orig, "", "" |
306 | a83f5185 | Nikos Skalkotos | |
307 | a83f5185 | Nikos Skalkotos | dev = entry[0]
|
308 | a83f5185 | Nikos Skalkotos | mpoint = entry[1]
|
309 | a83f5185 | Nikos Skalkotos | |
310 | 121f3bc0 | Nikos Skalkotos | if not self._is_persistent(dev): |
311 | a83f5185 | Nikos Skalkotos | if mpoint in devices: |
312 | 121f3bc0 | Nikos Skalkotos | dev = "UUID=%s" % self._get_uuid(devices[mpoint]) |
313 | a83f5185 | Nikos Skalkotos | entry[0] = dev
|
314 | a83f5185 | Nikos Skalkotos | else:
|
315 | a83f5185 | Nikos Skalkotos | # comment out the entry
|
316 | a83f5185 | Nikos Skalkotos | entry[0] = "#%s" % dev |
317 | a83f5185 | Nikos Skalkotos | return " ".join(entry), dev, mpoint |
318 | a83f5185 | Nikos Skalkotos | |
319 | a83f5185 | Nikos Skalkotos | return orig, dev, mpoint
|
320 | aa2062ba | Nikos Skalkotos | |
321 | 121f3bc0 | Nikos Skalkotos | def _do_collect_metadata(self): |
322 | 121f3bc0 | Nikos Skalkotos | """Collect metadata about the OS"""
|
323 | 121f3bc0 | Nikos Skalkotos | super(Linux, self)._do_collect_metadata() |
324 | 121f3bc0 | Nikos Skalkotos | self.meta["USERS"] = " ".join(self._get_passworded_users()) |
325 | 121f3bc0 | Nikos Skalkotos | |
326 | 121f3bc0 | Nikos Skalkotos | # Delete the USERS metadata if empty
|
327 | 121f3bc0 | Nikos Skalkotos | if not len(self.meta['USERS']): |
328 | 121f3bc0 | Nikos Skalkotos | self.out.warn("No passworded users found!") |
329 | 121f3bc0 | Nikos Skalkotos | del self.meta['USERS'] |
330 | 121f3bc0 | Nikos Skalkotos | |
331 | 121f3bc0 | Nikos Skalkotos | def _get_passworded_users(self): |
332 | 121f3bc0 | Nikos Skalkotos | """Returns a list of non-locked user accounts"""
|
333 | 121f3bc0 | Nikos Skalkotos | users = [] |
334 | 121f3bc0 | Nikos Skalkotos | regexp = re.compile('(\S+):((?:!\S+)|(?:[^!*]\S+)|):(?:\S*:){6}')
|
335 | 121f3bc0 | Nikos Skalkotos | |
336 | 121f3bc0 | Nikos Skalkotos | for line in self.g.cat('/etc/shadow').splitlines(): |
337 | 121f3bc0 | Nikos Skalkotos | match = regexp.match(line) |
338 | 121f3bc0 | Nikos Skalkotos | if not match: |
339 | 121f3bc0 | Nikos Skalkotos | continue
|
340 | 121f3bc0 | Nikos Skalkotos | |
341 | 121f3bc0 | Nikos Skalkotos | user, passwd = match.groups() |
342 | 121f3bc0 | Nikos Skalkotos | if len(passwd) > 0 and passwd[0] == '!': |
343 | 121f3bc0 | Nikos Skalkotos | self.out.warn("Ignoring locked %s account." % user) |
344 | 121f3bc0 | Nikos Skalkotos | else:
|
345 | 121f3bc0 | Nikos Skalkotos | users.append(user) |
346 | 121f3bc0 | Nikos Skalkotos | |
347 | 121f3bc0 | Nikos Skalkotos | return users
|
348 | 121f3bc0 | Nikos Skalkotos | |
349 | 121f3bc0 | Nikos Skalkotos | def _is_persistent(self, dev): |
350 | 121f3bc0 | Nikos Skalkotos | """Checks if a device name is persistent."""
|
351 | 121f3bc0 | Nikos Skalkotos | return not self._persistent.match(dev) |
352 | 121f3bc0 | Nikos Skalkotos | |
353 | 121f3bc0 | Nikos Skalkotos | def _get_uuid(self, dev): |
354 | 121f3bc0 | Nikos Skalkotos | """Returns the UUID corresponding to a device"""
|
355 | 121f3bc0 | Nikos Skalkotos | if dev in self._uuid: |
356 | 121f3bc0 | Nikos Skalkotos | return self._uuid[dev] |
357 | 121f3bc0 | Nikos Skalkotos | |
358 | 121f3bc0 | Nikos Skalkotos | uuid = self.g.vfs_uuid(dev)
|
359 | 121f3bc0 | Nikos Skalkotos | assert len(uuid) |
360 | 121f3bc0 | Nikos Skalkotos | self._uuid[dev] = uuid
|
361 | 121f3bc0 | Nikos Skalkotos | return uuid
|
362 | 121f3bc0 | Nikos Skalkotos | |
363 | aa2062ba | Nikos Skalkotos | # vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |