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d7c7c334 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
10f9c755 | 22 | #include <fcntl.h> |
d7c7c334 LP |
23 | |
24 | #include "log.h" | |
d7c7c334 | 25 | #include "fileio.h" |
10f9c755 LP |
26 | #include "util.h" |
27 | #include "btrfs-util.h" | |
d7c7c334 LP |
28 | |
29 | int main(int argc, char *argv[]) { | |
d9e2daaf | 30 | int r, fd; |
10f9c755 LP |
31 | |
32 | fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY); | |
33 | if (fd < 0) | |
34 | log_error_errno(errno, "Failed to open root directory: %m"); | |
35 | else { | |
c75f27ea | 36 | BtrfsSubvolInfo info; |
b6b18498 LP |
37 | BtrfsQuotaInfo quota; |
38 | char ts[FORMAT_TIMESTAMP_MAX], bs[FORMAT_BYTES_MAX]; | |
c75f27ea | 39 | |
10f9c755 LP |
40 | r = btrfs_subvol_get_info_fd(fd, &info); |
41 | if (r < 0) | |
42 | log_error_errno(r, "Failed to get subvolume info: %m"); | |
43 | else { | |
44 | log_info("otime: %s", format_timestamp(ts, sizeof(ts), info.otime)); | |
c75f27ea | 45 | log_info("read-only (search): %s", yes_no(info.read_only)); |
10f9c755 LP |
46 | } |
47 | ||
b6b18498 LP |
48 | r = btrfs_subvol_get_quota_fd(fd, "a); |
49 | if (r < 0) | |
50 | log_error_errno(r, "Failed to get quota info: %m"); | |
51 | else { | |
cb81cd80 | 52 | log_info("referenced: %s", strna(format_bytes(bs, sizeof(bs), quota.referenced))); |
b6b18498 | 53 | log_info("exclusive: %s", strna(format_bytes(bs, sizeof(bs), quota.exclusive))); |
cb81cd80 | 54 | log_info("referenced_max: %s", strna(format_bytes(bs, sizeof(bs), quota.referenced_max))); |
b6b18498 LP |
55 | log_info("exclusive_max: %s", strna(format_bytes(bs, sizeof(bs), quota.exclusive_max))); |
56 | } | |
57 | ||
10f9c755 | 58 | r = btrfs_subvol_get_read_only_fd(fd); |
c75f27ea LP |
59 | if (r < 0) |
60 | log_error_errno(r, "Failed to get read only flag: %m"); | |
61 | else | |
62 | log_info("read-only (ioctl): %s", yes_no(r)); | |
10f9c755 | 63 | |
c75f27ea | 64 | safe_close(fd); |
10f9c755 | 65 | } |
d7c7c334 LP |
66 | |
67 | r = btrfs_subvol_make("/xxxtest"); | |
68 | if (r < 0) | |
69 | log_error_errno(r, "Failed to make subvolume: %m"); | |
70 | ||
4c1fc3e4 | 71 | r = write_string_file("/xxxtest/afile", "ljsadhfljasdkfhlkjdsfha", WRITE_STRING_FILE_CREATE); |
d7c7c334 LP |
72 | if (r < 0) |
73 | log_error_errno(r, "Failed to write file: %m"); | |
74 | ||
e9bc1871 | 75 | r = btrfs_subvol_snapshot("/xxxtest", "/xxxtest2", 0); |
d7c7c334 LP |
76 | if (r < 0) |
77 | log_error_errno(r, "Failed to make snapshot: %m"); | |
78 | ||
e9bc1871 | 79 | r = btrfs_subvol_snapshot("/xxxtest", "/xxxtest3", BTRFS_SNAPSHOT_READ_ONLY); |
d7c7c334 LP |
80 | if (r < 0) |
81 | log_error_errno(r, "Failed to make snapshot: %m"); | |
82 | ||
d9e2daaf | 83 | r = btrfs_subvol_remove("/xxxtest", false); |
d7c7c334 LP |
84 | if (r < 0) |
85 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
86 | ||
d9e2daaf | 87 | r = btrfs_subvol_remove("/xxxtest2", false); |
d7c7c334 LP |
88 | if (r < 0) |
89 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
90 | ||
d9e2daaf | 91 | r = btrfs_subvol_remove("/xxxtest3", false); |
d7c7c334 LP |
92 | if (r < 0) |
93 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
94 | ||
e9bc1871 | 95 | r = btrfs_subvol_snapshot("/etc", "/etc2", BTRFS_SNAPSHOT_READ_ONLY|BTRFS_SNAPSHOT_FALLBACK_COPY); |
d7c7c334 LP |
96 | if (r < 0) |
97 | log_error_errno(r, "Failed to make snapshot: %m"); | |
98 | ||
d9e2daaf | 99 | r = btrfs_subvol_remove("/etc2", false); |
d7c7c334 LP |
100 | if (r < 0) |
101 | log_error_errno(r, "Failed to remove subvolume: %m"); | |
102 | ||
d9e2daaf LP |
103 | r = btrfs_subvol_make("/xxxrectest"); |
104 | if (r < 0) | |
105 | log_error_errno(r, "Failed to make subvolume: %m"); | |
106 | ||
107 | r = btrfs_subvol_make("/xxxrectest/xxxrectest2"); | |
108 | if (r < 0) | |
109 | log_error_errno(r, "Failed to make subvolume: %m"); | |
110 | ||
111 | r = btrfs_subvol_make("/xxxrectest/xxxrectest3"); | |
112 | if (r < 0) | |
113 | log_error_errno(r, "Failed to make subvolume: %m"); | |
114 | ||
115 | r = btrfs_subvol_make("/xxxrectest/xxxrectest3/sub"); | |
116 | if (r < 0) | |
117 | log_error_errno(r, "Failed to make subvolume: %m"); | |
118 | ||
119 | if (mkdir("/xxxrectest/dir", 0755) < 0) | |
120 | log_error_errno(errno, "Failed to make directory: %m"); | |
121 | ||
122 | r = btrfs_subvol_make("/xxxrectest/dir/xxxrectest4"); | |
123 | if (r < 0) | |
124 | log_error_errno(r, "Failed to make subvolume: %m"); | |
125 | ||
126 | if (mkdir("/xxxrectest/dir/xxxrectest4/dir", 0755) < 0) | |
127 | log_error_errno(errno, "Failed to make directory: %m"); | |
128 | ||
129 | r = btrfs_subvol_make("/xxxrectest/dir/xxxrectest4/dir/xxxrectest5"); | |
130 | if (r < 0) | |
131 | log_error_errno(r, "Failed to make subvolume: %m"); | |
132 | ||
133 | if (mkdir("/xxxrectest/mnt", 0755) < 0) | |
134 | log_error_errno(errno, "Failed to make directory: %m"); | |
135 | ||
f70a17f8 LP |
136 | r = btrfs_subvol_snapshot("/xxxrectest", "/xxxrectest2", BTRFS_SNAPSHOT_RECURSIVE); |
137 | if (r < 0) | |
138 | log_error_errno(r, "Failed to snapshot subvolume: %m"); | |
139 | ||
d9e2daaf LP |
140 | r = btrfs_subvol_remove("/xxxrectest", true); |
141 | if (r < 0) | |
142 | log_error_errno(r, "Failed to recursively remove subvolume: %m"); | |
143 | ||
f70a17f8 LP |
144 | r = btrfs_subvol_remove("/xxxrectest2", true); |
145 | if (r < 0) | |
146 | log_error_errno(r, "Failed to recursively remove subvolume: %m"); | |
147 | ||
d7c7c334 LP |
148 | return 0; |
149 | } |