2 * manage device node user ACL
4 * Copyright 2010-2012 Kay Sievers <kay@vrfy.org>
5 * Copyright 2010 Lennart Poettering
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
32 #include "systemd/sd-login.h"
33 #include "logind-acl.h"
37 static int builtin_uaccess(struct udev_device *dev, int argc, char *argv[], bool test) {
39 const char *path = NULL, *seat;
40 bool changed_acl = false;
45 /* don't muck around with ACLs when the system is not running systemd */
46 if (!logind_running())
49 path = udev_device_get_devnode(dev);
50 seat = udev_device_get_property_value(dev, "ID_SEAT");
54 r = sd_seat_get_active(seat, NULL, &uid);
56 /* No active session on this seat */
60 log_error("Failed to determine active user on seat %s.", seat);
64 r = devnode_acl(path, true, false, 0, true, uid);
66 log_error_errno(r, "Failed to apply ACL on %s: %m", path);
74 if (path && !changed_acl) {
77 /* Better be safe than sorry and reset ACL */
78 k = devnode_acl(path, true, false, 0, false, 0);
80 log_error_errno(k, "Failed to apply ACL on %s: %m", path);
86 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
89 const struct udev_builtin udev_builtin_uaccess = {
91 .cmd = builtin_uaccess,
92 .help = "Manage device node user ACL",