busybox/modutils/insmod.c

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/* vi: set sw=4 ts=4: */
/*
* Mini insmod implementation for busybox
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*
* Copyright (C) 2008 Timo Teras <timo.teras@iki.fi>
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*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//config:config INSMOD
//config: bool "insmod"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: insmod is used to load specified modules in the running kernel.
//applet:IF_INSMOD(IF_NOT_MODPROBE_SMALL(APPLET(insmod, BB_DIR_SBIN, BB_SUID_DROP)))
//kbuild:ifneq ($(CONFIG_MODPROBE_SMALL),y)
//kbuild:lib-$(CONFIG_INSMOD) += insmod.o modutils.o
//kbuild:endif
#include "libbb.h"
#include "modutils.h"
/* 2.6 style insmod has no options and required filename
* (not module name - .ko can't be omitted) */
//usage:#if !ENABLE_MODPROBE_SMALL
//usage:#define insmod_trivial_usage
//usage: IF_FEATURE_2_4_MODULES("[OPTIONS] MODULE")
//usage: IF_NOT_FEATURE_2_4_MODULES("FILE")
//usage: IF_FEATURE_CMDLINE_MODULE_OPTIONS(" [SYMBOL=VALUE]...")
//usage:#define insmod_full_usage "\n\n"
//usage: "Load kernel module"
//usage: IF_FEATURE_2_4_MODULES( "\n"
//usage: "\n -f Force module to load into the wrong kernel version"
//usage: "\n -k Make module autoclean-able"
//usage: "\n -v Verbose"
//usage: "\n -q Quiet"
//usage: "\n -L Lock: prevent simultaneous loads"
//usage: IF_FEATURE_INSMOD_LOAD_MAP(
//usage: "\n -m Output load map to stdout"
//usage: )
//usage: "\n -x Don't export externs"
//usage: )
//usage:#endif
int insmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int insmod_main(int argc UNUSED_PARAM, char **argv)
{
char *filename;
int rc;
/* Compat note:
* 2.6 style insmod has no options and required filename
* (not module name - .ko can't be omitted).
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* 2.4 style insmod can take module name without .o
* and performs module search in default directories
* or in $MODPATH.
*/
IF_FEATURE_2_4_MODULES(
getopt32(argv, INSMOD_OPTS INSMOD_ARGS);
argv += optind - 1;
);
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filename = *++argv;
if (!filename)
bb_show_usage();
rc = bb_init_module(filename, parse_cmdline_module_options(argv, /*quote_spaces:*/ 0));
if (rc)
bb_error_msg("can't insert '%s': %s", filename, moderror(rc));
return rc;
}