From a660c63c551b88136ac6176855b5907cc533e848 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 9 Nov 2012 12:37:40 +0100 Subject: udev: net_id - add builtin to retrieve data for network devices --- src/udev/udev-builtin-net_id.c | 55 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 src/udev/udev-builtin-net_id.c (limited to 'src/udev/udev-builtin-net_id.c') diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c new file mode 100644 index 0000000000..eff4552778 --- /dev/null +++ b/src/udev/udev-builtin-net_id.c @@ -0,0 +1,55 @@ +/*** + This file is part of systemd. + + Copyright 2012 Kay Sievers + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include +#include +#include +#include +#include +#include + +#include "udev.h" + +/* IEEE Organizationally Unique Identifier */ +static int lookup_OUI(struct udev_device *dev, bool test) { + const char *addr; + unsigned int a1, a2, a3; + char oui[16]; + + addr = udev_device_get_sysattr_value(dev, "address"); + if (!addr) + return -ENOENT; + + if (sscanf(addr, "%x:%x:%x:", &a1, &a2, &a3) != 3) + return -EINVAL; + + snprintf(oui, sizeof(oui), "OUI:%X%X%X", a1, a2, a3); + return udev_builtin_hwdb_lookup(dev, oui, test); +} + +static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool test) { + lookup_OUI(dev, test); + return EXIT_SUCCESS; +} + +const struct udev_builtin udev_builtin_net_id = { + .name = "net_id", + .cmd = builtin_net_id, + .help = "network device properties", +}; -- cgit v1.2.3-54-g00ecf