]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
d7c7c334 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2014 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 | ||
10f9c755 | 21 | #include <fcntl.h> |
d7c7c334 | 22 | |
10f9c755 | 23 | #include "btrfs-util.h" |
3ffd4af2 LP |
24 | #include "fd-util.h" |
25 | #include "fileio.h" | |
26 | #include "log.h" | |
6bedfcbb | 27 | #include "parse-util.h" |
07630cea | 28 | #include "string-util.h" |
3ffd4af2 | 29 | #include "util.h" |
d7c7c334 LP |
30 | |
31 | int main(int argc, char *argv[]) { | |
5bcd08db | 32 | BtrfsQuotaInfo quota; |
d9e2daaf | 33 | int r, fd; |
10f9c755 LP |
34 | |
35 | fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY); | |
36 | if (fd < 0) | |
37 | log_error_errno(errno, "Failed to open root directory: %m"); | |
38 | else { | |
b6b18498 | 39 | char ts[FORMAT_TIMESTAMP_MAX], bs[FORMAT_BYTES_MAX]; |
5bcd08db | 40 | BtrfsSubvolInfo info; |
c75f27ea | 41 | |
5bcd08db | 42 | r = btrfs_subvol_get_info_fd(fd, 0, &info); |
10f9c755 LP |
43 | if (r < 0) |
44 | log_error_errno(r, "Failed to get subvolume info: %m"); | |
45 | else { | |
46 | log_info("otime: %s", format_timestamp(ts, sizeof(ts), info.otime)); | |
c75f27ea | 47 | log_info("read-only (search): %s", yes_no(info.read_only)); |
10f9c755 LP |
48 | } |
49 | ||
5bcd08db | 50 | r = btrfs_qgroup_get_quota_fd(fd, 0, "a); |
b6b18498 LP |
51 | if (r < 0) |
52 | log_error_errno(r, "Failed to get quota info: %m"); | |
53 | else { | |
cb81cd80 | 54 | log_info("referenced: %s", strna(format_bytes(bs, sizeof(bs), quota.referenced))); |
b6b18498 | 55 | log_info("exclusive: %s", strna(format_bytes(bs, sizeof(bs), quota.exclusive))); |
cb81cd80 | 56 | log_info("referenced_max: %s", strna(format_bytes(bs, sizeof(bs), quota.referenced_max))); |
b6b18498 LP |
57 | log_info("exclusive_max: %s", strna(format_bytes(bs, sizeof(bs), quota.exclusive_max))); |
58 | } | |
59 | ||
10f9c755 | 60 | r = btrfs_subvol_get_read_only_fd(fd); |
c75f27ea LP |
61 | if (r < 0) |
62 | log_error_errno(r, "Failed to get read only flag: %m"); | |
63 | else | |
64 | log_info("read-only (ioctl): %s", yes_no(r)); | |
10f9c755 | 65 | |
c75f27ea | 66 | safe_close(fd); |
10f9c755 | 67 | } |
d7c7c334 LP |
68 | |
69 | r = btrfs_subvol_make("/xxxtest"); | |
70 | if (r < 0) | |
71 | log_error_errno(r, "Failed to make subvolume: %m"); | |
72 | ||
4c1fc3e4 | 73 | r = write_string_file("/xxxtest/afile", "ljsadhfljasdkfhlkjdsfha", WRITE_STRING_FILE_CREATE); |
d7c7c334 LP |
74 | if (r < 0) |
75 | log_error_errno(r, "Failed to write file: %m"); | |
76 | ||
e9bc1871 | 77 | r = btrfs_subvol_snapshot("/xxxtest", "/xxxtest2", 0); |
d7c7c334 LP |
78 | if (r < 0) |
79 | log_error_errno(r, "Failed to make snapshot: %m"); | |
80 | ||
e9bc1871 | 81 | r = btrfs_subvol_snapshot("/xxxtest", "/xxxtest3", BTRFS_SNAPSHOT_READ_ONLY); |
d7c7c334 LP |
82 | if (r < 0) |
83 | log_error_errno(r, "Failed to make snapshot: %m"); | |
84 | ||
5bcd08db | 85 | r = btrfs_subvol_remove("/xxxtest", BTRFS_REMOVE_QUOTA); |
d7c7c334 LP |
86 | if (r < 0) |
87 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
88 | ||
5bcd08db | 89 | r = btrfs_subvol_remove("/xxxtest2", BTRFS_REMOVE_QUOTA); |
d7c7c334 LP |
90 | if (r < 0) |
91 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
92 | ||
5bcd08db | 93 | r = btrfs_subvol_remove("/xxxtest3", BTRFS_REMOVE_QUOTA); |
d7c7c334 LP |
94 | if (r < 0) |
95 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
96 | ||
e9bc1871 | 97 | r = btrfs_subvol_snapshot("/etc", "/etc2", BTRFS_SNAPSHOT_READ_ONLY|BTRFS_SNAPSHOT_FALLBACK_COPY); |
d7c7c334 LP |
98 | if (r < 0) |
99 | log_error_errno(r, "Failed to make snapshot: %m"); | |
100 | ||
5bcd08db | 101 | r = btrfs_subvol_remove("/etc2", BTRFS_REMOVE_QUOTA); |
d7c7c334 LP |
102 | if (r < 0) |
103 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
104 | ||
d9e2daaf LP |
105 | r = btrfs_subvol_make("/xxxrectest"); |
106 | if (r < 0) | |
107 | log_error_errno(r, "Failed to make subvolume: %m"); | |
108 | ||
109 | r = btrfs_subvol_make("/xxxrectest/xxxrectest2"); | |
110 | if (r < 0) | |
111 | log_error_errno(r, "Failed to make subvolume: %m"); | |
112 | ||
113 | r = btrfs_subvol_make("/xxxrectest/xxxrectest3"); | |
114 | if (r < 0) | |
115 | log_error_errno(r, "Failed to make subvolume: %m"); | |
116 | ||
117 | r = btrfs_subvol_make("/xxxrectest/xxxrectest3/sub"); | |
118 | if (r < 0) | |
119 | log_error_errno(r, "Failed to make subvolume: %m"); | |
120 | ||
121 | if (mkdir("/xxxrectest/dir", 0755) < 0) | |
122 | log_error_errno(errno, "Failed to make directory: %m"); | |
123 | ||
124 | r = btrfs_subvol_make("/xxxrectest/dir/xxxrectest4"); | |
125 | if (r < 0) | |
126 | log_error_errno(r, "Failed to make subvolume: %m"); | |
127 | ||
128 | if (mkdir("/xxxrectest/dir/xxxrectest4/dir", 0755) < 0) | |
129 | log_error_errno(errno, "Failed to make directory: %m"); | |
130 | ||
131 | r = btrfs_subvol_make("/xxxrectest/dir/xxxrectest4/dir/xxxrectest5"); | |
132 | if (r < 0) | |
133 | log_error_errno(r, "Failed to make subvolume: %m"); | |
134 | ||
135 | if (mkdir("/xxxrectest/mnt", 0755) < 0) | |
136 | log_error_errno(errno, "Failed to make directory: %m"); | |
137 | ||
f70a17f8 LP |
138 | r = btrfs_subvol_snapshot("/xxxrectest", "/xxxrectest2", BTRFS_SNAPSHOT_RECURSIVE); |
139 | if (r < 0) | |
140 | log_error_errno(r, "Failed to snapshot subvolume: %m"); | |
141 | ||
5bcd08db | 142 | r = btrfs_subvol_remove("/xxxrectest", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE); |
d9e2daaf LP |
143 | if (r < 0) |
144 | log_error_errno(r, "Failed to recursively remove subvolume: %m"); | |
145 | ||
5bcd08db | 146 | r = btrfs_subvol_remove("/xxxrectest2", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE); |
f70a17f8 LP |
147 | if (r < 0) |
148 | log_error_errno(r, "Failed to recursively remove subvolume: %m"); | |
149 | ||
5bcd08db LP |
150 | r = btrfs_subvol_make("/xxxquotatest"); |
151 | if (r < 0) | |
152 | log_error_errno(r, "Failed to make subvolume: %m"); | |
153 | ||
154 | r = btrfs_subvol_auto_qgroup("/xxxquotatest", 0, true); | |
155 | if (r < 0) | |
156 | log_error_errno(r, "Failed to set up auto qgroup: %m"); | |
157 | ||
158 | r = btrfs_subvol_make("/xxxquotatest/beneath"); | |
159 | if (r < 0) | |
160 | log_error_errno(r, "Failed to make subvolume: %m"); | |
161 | ||
162 | r = btrfs_subvol_auto_qgroup("/xxxquotatest/beneath", 0, false); | |
163 | if (r < 0) | |
164 | log_error_errno(r, "Failed to set up auto qgroup: %m"); | |
165 | ||
166 | r = btrfs_qgroup_set_limit("/xxxquotatest/beneath", 0, 4ULL * 1024 * 1024 * 1024); | |
167 | if (r < 0) | |
168 | log_error_errno(r, "Failed to set up quota limit: %m"); | |
169 | ||
170 | r = btrfs_subvol_set_subtree_quota_limit("/xxxquotatest", 0, 5ULL * 1024 * 1024 * 1024); | |
171 | if (r < 0) | |
172 | log_error_errno(r, "Failed to set up quota limit: %m"); | |
173 | ||
174 | r = btrfs_subvol_snapshot("/xxxquotatest", "/xxxquotatest2", BTRFS_SNAPSHOT_RECURSIVE|BTRFS_SNAPSHOT_QUOTA); | |
175 | if (r < 0) | |
176 | log_error_errno(r, "Failed to setup snapshot: %m"); | |
177 | ||
178 | r = btrfs_qgroup_get_quota("/xxxquotatest2/beneath", 0, "a); | |
179 | if (r < 0) | |
180 | log_error_errno(r, "Failed to query quota: %m"); | |
181 | ||
182 | assert_se(quota.referenced_max == 4ULL * 1024 * 1024 * 1024); | |
183 | ||
184 | r = btrfs_subvol_get_subtree_quota("/xxxquotatest2", 0, "a); | |
185 | if (r < 0) | |
186 | log_error_errno(r, "Failed to query quota: %m"); | |
187 | ||
188 | assert_se(quota.referenced_max == 5ULL * 1024 * 1024 * 1024); | |
189 | ||
190 | r = btrfs_subvol_remove("/xxxquotatest", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE); | |
191 | if (r < 0) | |
192 | log_error_errno(r, "Failed remove subvolume: %m"); | |
193 | ||
194 | r = btrfs_subvol_remove("/xxxquotatest2", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE); | |
195 | if (r < 0) | |
196 | log_error_errno(r, "Failed remove subvolume: %m"); | |
197 | ||
d7c7c334 LP |
198 | return 0; |
199 | } |