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c3cfed0d KS |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2012 Kay Sievers <kay@vrfy.org> | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
0bb91b50 | 19 | |
0bb91b50 | 20 | #include <fcntl.h> |
07630cea | 21 | #include <stdlib.h> |
0bb91b50 | 22 | #include <sys/ioctl.h> |
a2e22d07 | 23 | |
349cc4a5 | 24 | #if HAVE_LINUX_BTRFS_H |
dced1557 SM |
25 | #include <linux/btrfs.h> |
26 | #endif | |
0bb91b50 | 27 | |
3ffd4af2 | 28 | #include "fd-util.h" |
dced1557 | 29 | #include "missing.h" |
07630cea | 30 | #include "string-util.h" |
0bb91b50 KS |
31 | #include "udev.h" |
32 | ||
9ec6e95b | 33 | static int builtin_btrfs(struct udev_device *dev, int argc, char *argv[], bool test) { |
a2e22d07 | 34 | struct btrfs_ioctl_vol_args args = {}; |
c8a202b7 | 35 | _cleanup_close_ int fd = -1; |
0bb91b50 KS |
36 | int err; |
37 | ||
38 | if (argc != 3 || !streq(argv[1], "ready")) | |
39 | return EXIT_FAILURE; | |
40 | ||
c8a202b7 | 41 | fd = open("/dev/btrfs-control", O_RDWR|O_CLOEXEC); |
0bb91b50 KS |
42 | if (fd < 0) |
43 | return EXIT_FAILURE; | |
44 | ||
d5a89d7d | 45 | strscpy(args.name, sizeof(args.name), argv[2]); |
0bb91b50 | 46 | err = ioctl(fd, BTRFS_IOC_DEVICES_READY, &args); |
0bb91b50 KS |
47 | if (err < 0) |
48 | return EXIT_FAILURE; | |
49 | ||
cd1ddd54 | 50 | udev_builtin_add_property(dev, test, "ID_BTRFS_READY", one_zero(err == 0)); |
0bb91b50 KS |
51 | return EXIT_SUCCESS; |
52 | } | |
53 | ||
54 | const struct udev_builtin udev_builtin_btrfs = { | |
55 | .name = "btrfs", | |
56 | .cmd = builtin_btrfs, | |
57 | .help = "btrfs volume management", | |
58 | }; |