1/*
2 * Common modutils related functions for busybox
3 *
4 * Copyright (C) 2008 by Timo Teras <timo.teras@iki.fi>
5 *
6 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
7 */
8
9#ifndef MODUTILS_H
10#define MODUTILS_H 1
11
12#include "libbb.h"
13
14PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
15
16/* linux/include/linux/module.h has 64, but this is also used
17 * internally for the maximum alias name length, which can be quite long */
18#define MODULE_NAME_LEN 256
19
20void replace(char *s, char what, char with) FAST_FUNC;
21char *replace_underscores(char *s) FAST_FUNC;
22int string_to_llist(char *string, llist_t **llist, const char *delim) FAST_FUNC;
23char *filename2modname(const char *filename, char *modname) FAST_FUNC;
24char *parse_cmdline_module_options(char **argv) FAST_FUNC;
25
26/* insmod for 2.4 and modprobe's options (insmod 2.6 has no options at all): */
27#define INSMOD_OPTS \
28	"vqs" \
29	IF_FEATURE_2_4_MODULES("Lfkx" IF_FEATURE_INSMOD_LOAD_MAP("m"))
30#define INSMOD_ARGS /* (was meant to support -o NAME) , NULL */
31
32enum {
33	INSMOD_OPT_VERBOSE      = (1 << 0),
34	INSMOD_OPT_SILENT       = (1 << 1),
35	INSMOD_OPT_SYSLOG       = (1 << 2),
36	//INSMOD_OPT_OUTPUTNAME = (1 << x) - not supported yet
37	INSMOD_OPT_LOCK         = (1 << 3) * ENABLE_FEATURE_2_4_MODULES,
38	INSMOD_OPT_FORCE        = (1 << 4) * ENABLE_FEATURE_2_4_MODULES,
39	INSMOD_OPT_KERNELD      = (1 << 5) * ENABLE_FEATURE_2_4_MODULES,
40	INSMOD_OPT_NO_EXPORT    = (1 << 6) * ENABLE_FEATURE_2_4_MODULES,
41	INSMOD_OPT_PRINT_MAP    = (1 << 7) * ENABLE_FEATURE_INSMOD_LOAD_MAP,
42	INSMOD_OPT_UNUSED       =
43		(INSMOD_OPT_PRINT_MAP ? INSMOD_OPT_PRINT_MAP
44		: INSMOD_OPT_NO_EXPORT ? INSMOD_OPT_NO_EXPORT
45		: INSMOD_OPT_SYSLOG
46		) << 1
47};
48
49#if ENABLE_FEATURE_INSMOD_TRY_MMAP
50void* FAST_FUNC try_to_mmap_module(const char *filename, size_t *image_size_p);
51#else
52# define try_to_mmap_module(filename, image_size) NULL
53#endif
54
55/* Return:
56 * 0 on success,
57 * -errno on open/read error,
58 * errno on init_module() error
59 */
60int FAST_FUNC bb_init_module(const char *module, const char *options);
61/* Return:
62 * 0 on success,
63 * errno on init_module() error
64 */
65int FAST_FUNC bb_delete_module(const char *module, unsigned int flags);
66/* Translates error return to a string */
67const char *moderror(int err) FAST_FUNC;
68
69#if ENABLE_FEATURE_2_4_MODULES
70int FAST_FUNC bb_init_module_24(const char *module, const char *options);
71#endif
72
73POP_SAVED_FUNCTION_VISIBILITY
74
75#endif
76