1 /* vi: set sw=4 ts=4: */
3 * Mini rmmod implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 * Copyright (C) 2008 Timo Teras <timo.teras@iki.fi>
8 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
11 //applet:IF_RMMOD(APPLET(rmmod, BB_DIR_SBIN, BB_SUID_DROP))
13 //usage:#if !ENABLE_MODPROBE_SMALL
14 //usage:#define rmmod_trivial_usage
15 //usage: "[-wfa] [MODULE]..."
16 //usage:#define rmmod_full_usage "\n\n"
17 //usage: "Unload kernel modules\n"
18 //usage: "\n -w Wait until the module is no longer used"
19 //usage: "\n -f Force unload"
20 //usage: "\n -a Remove all unused modules (recursively)"
21 //usage:#define rmmod_example_usage
22 //usage: "$ rmmod tulip\n"
28 int rmmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
29 int rmmod_main(int argc UNUSED_PARAM, char **argv)
32 unsigned flags = O_NONBLOCK | O_EXCL;
34 /* Parse command line. */
35 n = getopt32(argv, "wfas"); // -s ignored
42 /* Unload _all_ unused modules via NULL delete_module() call */
43 err = bb_delete_module(NULL, flags);
44 if (err && err != EFAULT)
45 bb_perror_msg_and_die("rmmod");
52 n = ENABLE_FEATURE_2_4_MODULES && get_linux_version_code() < KERNEL_VERSION(2,6,0);
54 char modname[MODULE_NAME_LEN];
57 bname = bb_basename(*argv++);
59 safe_strncpy(modname, bname, MODULE_NAME_LEN);
61 filename2modname(bname, modname);
62 err = bb_delete_module(modname, flags);
64 bb_perror_msg_and_die("can't unload module '%s'",