b1d6a2c624
Allow module options on command line to be disabled on "big" modutils. Config FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE is renamed to FEATURE_CMDLINE_MODULE_OPTIONS and no longer depends on !MODPROBE_SMALL (I'm not sure if disabling this is useful on "big" modutils, but at least the macro can serve as a marker and ensure both implementations of same feature have consistent behavior.) Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/*
|
|
* Common modutils related functions for busybox
|
|
*
|
|
* Copyright (C) 2008 by Timo Teras <timo.teras@iki.fi>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*/
|
|
|
|
#ifndef MODUTILS_H
|
|
#define MODUTILS_H 1
|
|
|
|
#include "libbb.h"
|
|
|
|
PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
|
|
|
|
/* linux/include/linux/module.h has 64, but this is also used
|
|
* internally for the maximum alias name length, which can be quite long */
|
|
#define MODULE_NAME_LEN 256
|
|
#define MODULE_HASH_SIZE 256
|
|
|
|
typedef struct module_entry {
|
|
struct module_entry *next;
|
|
char *name, *modname;
|
|
llist_t *deps;
|
|
IF_MODPROBE(
|
|
llist_t *realnames;
|
|
unsigned flags;
|
|
const char *probed_name; /* verbatim as seen on cmdline */
|
|
char *options; /* options from config files */
|
|
)
|
|
IF_DEPMOD(
|
|
llist_t *aliases;
|
|
llist_t *symbols;
|
|
struct module_entry *dnext, *dprev;
|
|
)
|
|
} module_entry;
|
|
|
|
typedef struct module_db {
|
|
module_entry *buckets[MODULE_HASH_SIZE];
|
|
} module_db;
|
|
|
|
#define moddb_foreach_module(db, module, index) \
|
|
for ((index) = 0; (index) < MODULE_HASH_SIZE; (index)++) \
|
|
for (module = (db)->buckets[index]; module; module = module->next)
|
|
|
|
module_entry *moddb_get(module_db *db, const char *s) FAST_FUNC;
|
|
module_entry *moddb_get_or_create(module_db *db, const char *s) FAST_FUNC;
|
|
void moddb_free(module_db *db) FAST_FUNC;
|
|
|
|
void replace(char *s, char what, char with) FAST_FUNC;
|
|
char *replace_underscores(char *s) FAST_FUNC;
|
|
int string_to_llist(char *string, llist_t **llist, const char *delim) FAST_FUNC;
|
|
char *filename2modname(const char *filename, char *modname) FAST_FUNC;
|
|
#if ENABLE_FEATURE_CMDLINE_MODULE_OPTIONS
|
|
char *parse_cmdline_module_options(char **argv, int quote_spaces) FAST_FUNC;
|
|
#else
|
|
# define parse_cmdline_module_options(argv, quote_spaces) ""
|
|
#endif
|
|
|
|
/* insmod for 2.4 and modprobe's options (insmod 2.6 has no options at all): */
|
|
#define INSMOD_OPTS \
|
|
"vqs" \
|
|
IF_FEATURE_2_4_MODULES("Lfkx" IF_FEATURE_INSMOD_LOAD_MAP("m"))
|
|
#define INSMOD_ARGS /* (was meant to support -o NAME) , NULL */
|
|
|
|
enum {
|
|
INSMOD_OPT_VERBOSE = (1 << 0),
|
|
INSMOD_OPT_SILENT = (1 << 1),
|
|
INSMOD_OPT_SYSLOG = (1 << 2),
|
|
//INSMOD_OPT_OUTPUTNAME = (1 << x) - not supported yet
|
|
INSMOD_OPT_LOCK = (1 << 3) * ENABLE_FEATURE_2_4_MODULES,
|
|
INSMOD_OPT_FORCE = (1 << 4) * ENABLE_FEATURE_2_4_MODULES,
|
|
INSMOD_OPT_KERNELD = (1 << 5) * ENABLE_FEATURE_2_4_MODULES,
|
|
INSMOD_OPT_NO_EXPORT = (1 << 6) * ENABLE_FEATURE_2_4_MODULES,
|
|
INSMOD_OPT_PRINT_MAP = (1 << 7) * ENABLE_FEATURE_INSMOD_LOAD_MAP,
|
|
INSMOD_OPT_UNUSED =
|
|
(INSMOD_OPT_PRINT_MAP ? INSMOD_OPT_PRINT_MAP
|
|
: INSMOD_OPT_NO_EXPORT ? INSMOD_OPT_NO_EXPORT
|
|
: INSMOD_OPT_SYSLOG
|
|
) << 1
|
|
};
|
|
|
|
#if ENABLE_FEATURE_INSMOD_TRY_MMAP
|
|
void* FAST_FUNC try_to_mmap_module(const char *filename, size_t *image_size_p);
|
|
#else
|
|
# define try_to_mmap_module(filename, image_size) NULL
|
|
#endif
|
|
|
|
/* Return:
|
|
* 0 on success,
|
|
* -errno on open/read error,
|
|
* errno on init_module() error
|
|
*/
|
|
int FAST_FUNC bb_init_module(const char *module, const char *options);
|
|
/* Return:
|
|
* 0 on success,
|
|
* errno on init_module() error
|
|
*/
|
|
int FAST_FUNC bb_delete_module(const char *module, unsigned int flags);
|
|
/* Translates error return to a string */
|
|
const char *moderror(int err) FAST_FUNC;
|
|
|
|
#if ENABLE_FEATURE_2_4_MODULES
|
|
int FAST_FUNC bb_init_module_24(const char *module, const char *options);
|
|
#endif
|
|
|
|
POP_SAVED_FUNCTION_VISIBILITY
|
|
|
|
#endif
|