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3f65d731 ZJS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
c3cfed0d KS |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Kay Sievers <kay@vrfy.org> | |
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 | ***/ | |
0bb91b50 | 21 | |
0bb91b50 | 22 | #include <fcntl.h> |
07630cea | 23 | #include <stdlib.h> |
0bb91b50 | 24 | #include <sys/ioctl.h> |
a2e22d07 | 25 | |
dced1557 SM |
26 | #ifdef HAVE_LINUX_BTRFS_H |
27 | #include <linux/btrfs.h> | |
28 | #endif | |
0bb91b50 | 29 | |
3ffd4af2 | 30 | #include "fd-util.h" |
dced1557 | 31 | #include "missing.h" |
07630cea | 32 | #include "string-util.h" |
0bb91b50 KS |
33 | #include "udev.h" |
34 | ||
9ec6e95b | 35 | static int builtin_btrfs(struct udev_device *dev, int argc, char *argv[], bool test) { |
a2e22d07 | 36 | struct btrfs_ioctl_vol_args args = {}; |
c8a202b7 | 37 | _cleanup_close_ int fd = -1; |
0bb91b50 KS |
38 | int err; |
39 | ||
40 | if (argc != 3 || !streq(argv[1], "ready")) | |
41 | return EXIT_FAILURE; | |
42 | ||
c8a202b7 | 43 | fd = open("/dev/btrfs-control", O_RDWR|O_CLOEXEC); |
0bb91b50 KS |
44 | if (fd < 0) |
45 | return EXIT_FAILURE; | |
46 | ||
d5a89d7d | 47 | strscpy(args.name, sizeof(args.name), argv[2]); |
0bb91b50 | 48 | err = ioctl(fd, BTRFS_IOC_DEVICES_READY, &args); |
0bb91b50 KS |
49 | if (err < 0) |
50 | return EXIT_FAILURE; | |
51 | ||
cd1ddd54 | 52 | udev_builtin_add_property(dev, test, "ID_BTRFS_READY", one_zero(err == 0)); |
0bb91b50 KS |
53 | return EXIT_SUCCESS; |
54 | } | |
55 | ||
56 | const struct udev_builtin udev_builtin_btrfs = { | |
57 | .name = "btrfs", | |
58 | .cmd = builtin_btrfs, | |
59 | .help = "btrfs volume management", | |
60 | }; |