LXR busybox/modutils/modutils.h

   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 source tree.
   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