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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3d7415f4 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2015 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
a8fbdf54 TA |
21 | #include <errno.h> |
22 | #include <string.h> | |
23 | ||
b5efdb8a | 24 | #include "alloc-util.h" |
8c9cfc28 | 25 | #include "btrfs-util.h" |
bb15fafe | 26 | #include "import-util.h" |
a8fbdf54 TA |
27 | #include "log.h" |
28 | #include "macro.h" | |
bb15fafe | 29 | #include "path-util.h" |
8b43440b | 30 | #include "string-table.h" |
07630cea | 31 | #include "string-util.h" |
3d7415f4 | 32 | #include "util.h" |
3d7415f4 LP |
33 | |
34 | int import_url_last_component(const char *url, char **ret) { | |
35 | const char *e, *p; | |
36 | char *s; | |
37 | ||
38 | e = strchrnul(url, '?'); | |
39 | ||
40 | while (e > url && e[-1] == '/') | |
41 | e--; | |
42 | ||
43 | p = e; | |
44 | while (p > url && p[-1] != '/') | |
45 | p--; | |
46 | ||
47 | if (e <= p) | |
48 | return -EINVAL; | |
49 | ||
50 | s = strndup(p, e - p); | |
51 | if (!s) | |
52 | return -ENOMEM; | |
53 | ||
54 | *ret = s; | |
55 | return 0; | |
56 | } | |
57 | ||
58 | ||
59 | int import_url_change_last_component(const char *url, const char *suffix, char **ret) { | |
60 | const char *e; | |
61 | char *s; | |
62 | ||
63 | assert(url); | |
64 | assert(ret); | |
65 | ||
66 | e = strchrnul(url, '?'); | |
67 | ||
68 | while (e > url && e[-1] == '/') | |
69 | e--; | |
70 | ||
71 | while (e > url && e[-1] != '/') | |
72 | e--; | |
73 | ||
74 | if (e <= url) | |
75 | return -EINVAL; | |
76 | ||
77 | s = new(char, (e - url) + strlen(suffix) + 1); | |
78 | if (!s) | |
79 | return -ENOMEM; | |
80 | ||
81 | strcpy(mempcpy(s, url, e - url), suffix); | |
82 | *ret = s; | |
83 | return 0; | |
84 | } | |
85 | ||
86 | static const char* const import_verify_table[_IMPORT_VERIFY_MAX] = { | |
87 | [IMPORT_VERIFY_NO] = "no", | |
7f444afa | 88 | [IMPORT_VERIFY_CHECKSUM] = "checksum", |
3d7415f4 LP |
89 | [IMPORT_VERIFY_SIGNATURE] = "signature", |
90 | }; | |
91 | ||
92 | DEFINE_STRING_TABLE_LOOKUP(import_verify, ImportVerify); | |
93 | ||
94 | int tar_strip_suffixes(const char *name, char **ret) { | |
95 | const char *e; | |
96 | char *s; | |
97 | ||
98 | e = endswith(name, ".tar"); | |
99 | if (!e) | |
100 | e = endswith(name, ".tar.xz"); | |
101 | if (!e) | |
102 | e = endswith(name, ".tar.gz"); | |
103 | if (!e) | |
104 | e = endswith(name, ".tar.bz2"); | |
105 | if (!e) | |
106 | e = endswith(name, ".tgz"); | |
107 | if (!e) | |
108 | e = strchr(name, 0); | |
109 | ||
110 | if (e <= name) | |
111 | return -EINVAL; | |
112 | ||
113 | s = strndup(name, e - name); | |
114 | if (!s) | |
115 | return -ENOMEM; | |
116 | ||
117 | *ret = s; | |
118 | return 0; | |
119 | } | |
120 | ||
121 | int raw_strip_suffixes(const char *p, char **ret) { | |
122 | ||
123 | static const char suffixes[] = | |
124 | ".xz\0" | |
125 | ".gz\0" | |
126 | ".bz2\0" | |
127 | ".raw\0" | |
128 | ".qcow2\0" | |
129 | ".img\0" | |
130 | ".bin\0"; | |
131 | ||
132 | _cleanup_free_ char *q = NULL; | |
133 | ||
134 | q = strdup(p); | |
135 | if (!q) | |
136 | return -ENOMEM; | |
137 | ||
138 | for (;;) { | |
139 | const char *sfx; | |
140 | bool changed = false; | |
141 | ||
142 | NULSTR_FOREACH(sfx, suffixes) { | |
143 | char *e; | |
144 | ||
145 | e = endswith(q, sfx); | |
146 | if (e) { | |
147 | *e = 0; | |
148 | changed = true; | |
149 | } | |
150 | } | |
151 | ||
152 | if (!changed) | |
153 | break; | |
154 | } | |
155 | ||
156 | *ret = q; | |
157 | q = NULL; | |
158 | ||
159 | return 0; | |
160 | } | |
161 | ||
8c9cfc28 LP |
162 | int import_assign_pool_quota_and_warn(const char *path) { |
163 | int r; | |
164 | ||
165 | r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true); | |
166 | if (r == -ENOTTY) { | |
167 | log_debug_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, as directory is not on btrfs or not a subvolume. Ignoring."); | |
168 | return 0; | |
169 | } | |
170 | if (r < 0) | |
171 | return log_error_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines: %m"); | |
172 | if (r > 0) | |
173 | log_info("Set up default quota hierarchy for /var/lib/machines."); | |
174 | ||
175 | r = btrfs_subvol_auto_qgroup(path, 0, true); | |
176 | if (r == -ENOTTY) { | |
177 | log_debug_errno(r, "Failed to set up quota hierarchy for %s, as directory is not on btrfs or not a subvolume. Ignoring.", path); | |
178 | return 0; | |
179 | } | |
180 | if (r < 0) | |
181 | return log_error_errno(r, "Failed to set up default quota hierarchy for %s: %m", path); | |
182 | if (r > 0) | |
183 | log_info("Set up default quota hierarchy for %s.", path); | |
184 | ||
185 | return 0; | |
186 | } |