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)
40 const char *path = NULL, *seat;
41 bool changed_acl = false;
46 /* don't muck around with ACLs when the system is not running systemd */
47 if (!logind_running())
50 path = udev_device_get_devnode(dev);
51 seat = udev_device_get_property_value(dev, "ID_SEAT");
55 r = sd_seat_get_active(seat, NULL, &uid);
57 /* No active session on this seat */
61 log_error("Failed to determine active user on seat %s.", seat);
65 r = devnode_acl(path, true, false, 0, true, uid);
67 log_error("Failed to apply ACL on %s: %s", path, strerror(-r));
75 if (path && !changed_acl) {
78 /* Better be safe than sorry and reset ACL */
79 k = devnode_acl(path, true, false, 0, false, 0);
81 log_error("Failed to apply ACL on %s: %s", path, strerror(-k));
87 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
90 const struct udev_builtin udev_builtin_uaccess = {
92 .cmd = builtin_uaccess,
93 .help = "manage device node user ACL",