release/src/router/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
  14 PUSH_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
  20 void replace(char *s, char what, char with) FAST_FUNC;
  21 char *replace_underscores(char *s) FAST_FUNC;
  22 int string_to_llist(char *string, llist_t **llist, const char *delim) FAST_FUNC;
  23 char *filename2modname(const char *filename, char *modname) FAST_FUNC;
  24 char *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
  32 enum {
  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
  50 void* 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  */
  60 int FAST_FUNC bb_init_module(const char *module, const char *options);
  61 /* Return:
  62  * 0 on success,
  63  * errno on init_module() error
  64  */
  65 int FAST_FUNC bb_delete_module(const char *module, unsigned int flags);
  66 /* Translates error return to a string */
  67 const char *moderror(int err) FAST_FUNC;
  68
  69 #if ENABLE_FEATURE_2_4_MODULES
  70 int FAST_FUNC bb_init_module_24(const char *module, const char *options);
  71 #endif
  72
  73 POP_SAVED_FUNCTION_VISIBILITY
  74
  75 #endif