| /* |
| * 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; |
| char *parse_cmdline_module_options(char **argv, int quote_spaces) FAST_FUNC; |
| |
| /* 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 |