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Diffstat (limited to 'meta/lib/rootfspostcommands.py')
-rw-r--r-- | meta/lib/rootfspostcommands.py | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/meta/lib/rootfspostcommands.py b/meta/lib/rootfspostcommands.py deleted file mode 100644 index 5386eea409..0000000000 --- a/meta/lib/rootfspostcommands.py +++ /dev/null | |||
@@ -1,90 +0,0 @@ | |||
1 | # | ||
2 | # Copyright OpenEmbedded Contributors | ||
3 | # | ||
4 | # SPDX-License-Identifier: GPL-2.0-only | ||
5 | # | ||
6 | |||
7 | import os | ||
8 | |||
9 | def sort_shadowutils_file(filename, mapping): | ||
10 | """ | ||
11 | Sorts a passwd or group file based on the numeric ID in the third column. | ||
12 | If a mapping is given, the name from the first column is mapped via that | ||
13 | dictionary instead (necessary for /etc/shadow and /etc/gshadow). If not, | ||
14 | a new mapping is created on the fly and returned. | ||
15 | """ | ||
16 | |||
17 | new_mapping = {} | ||
18 | with open(filename, 'rb+') as f: | ||
19 | lines = f.readlines() | ||
20 | # No explicit error checking for the sake of simplicity. /etc | ||
21 | # files are assumed to be well-formed, causing exceptions if | ||
22 | # not. | ||
23 | for line in lines: | ||
24 | entries = line.split(b':') | ||
25 | name = entries[0] | ||
26 | if mapping is None: | ||
27 | id = int(entries[2]) | ||
28 | else: | ||
29 | id = mapping[name] | ||
30 | new_mapping[name] = id | ||
31 | # Sort by numeric id first, with entire line as secondary key | ||
32 | # (just in case that there is more than one entry for the same id). | ||
33 | lines.sort(key=lambda line: (new_mapping[line.split(b':')[0]], line)) | ||
34 | # We overwrite the entire file, i.e. no truncate() necessary. | ||
35 | f.seek(0) | ||
36 | f.write(b''.join(lines)) | ||
37 | |||
38 | return new_mapping | ||
39 | |||
40 | def sort_shadowutils_files(sysconfdir): | ||
41 | """ | ||
42 | Sorts shadow-utils 'passwd' and 'group' files in a rootfs' /etc directory | ||
43 | by ID. | ||
44 | """ | ||
45 | |||
46 | for main, shadow in (('passwd', 'shadow'), | ||
47 | ('group', 'gshadow')): | ||
48 | filename = os.path.join(sysconfdir, main) | ||
49 | if os.path.exists(filename): | ||
50 | mapping = sort_shadowutils_file(filename, None) | ||
51 | filename = os.path.join(sysconfdir, shadow) | ||
52 | if os.path.exists(filename): | ||
53 | sort_shadowutils_file(filename, mapping) | ||
54 | |||
55 | def remove_shadowutils_backup_file(filename): | ||
56 | """ | ||
57 | Remove shadow-utils backup file for files like /etc/passwd. | ||
58 | """ | ||
59 | |||
60 | backup_filename = filename + '-' | ||
61 | if os.path.exists(backup_filename): | ||
62 | os.unlink(backup_filename) | ||
63 | |||
64 | def remove_shadowutils_backup_files(sysconfdir): | ||
65 | """ | ||
66 | Remove shadow-utils backup files in a rootfs /etc directory. They are not | ||
67 | needed in the initial root filesystem and sorting them can be inconsistent | ||
68 | (YOCTO #11043). | ||
69 | """ | ||
70 | |||
71 | for filename in ( | ||
72 | 'group', | ||
73 | 'gshadow', | ||
74 | 'passwd', | ||
75 | 'shadow', | ||
76 | 'subgid', | ||
77 | 'subuid', | ||
78 | ): | ||
79 | filepath = os.path.join(sysconfdir, filename) | ||
80 | remove_shadowutils_backup_file(filepath) | ||
81 | |||
82 | def tidy_shadowutils_files(sysconfdir): | ||
83 | """ | ||
84 | Tidy up shadow-utils files. | ||
85 | """ | ||
86 | |||
87 | remove_shadowutils_backup_files(sysconfdir) | ||
88 | sort_shadowutils_files(sysconfdir) | ||
89 | |||
90 | return True | ||