2 This file is part of systemd.
4 Copyright 2012 Kay Sievers <kay@vrfy.org>
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.
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.
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/>.
29 /* IEEE Organizationally Unique Identifier */
30 static int lookup_OUI(struct udev_device *dev, bool test) {
32 unsigned int a1, a2, a3;
35 addr = udev_device_get_sysattr_value(dev, "address");
39 if (sscanf(addr, "%x:%x:%x:", &a1, &a2, &a3) != 3)
42 snprintf(oui, sizeof(oui), "OUI:%X%X%X", a1, a2, a3);
43 return udev_builtin_hwdb_lookup(dev, oui, test);
46 static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool test) {
47 lookup_OUI(dev, test);
51 const struct udev_builtin udev_builtin_net_id = {
53 .cmd = builtin_net_id,
54 .help = "network device properties",