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/*
* libkmod - interface to kernel module operations
*
* Copyright (C) 2011 ProFUSION embedded systems
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _LIBKMOD_H_
#define _LIBKMOD_H_
#include <fcntl.h>
#include <stdarg.h>
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* kmod_ctx
*
* library user context - reads the config and system
* environment, user variables, allows custom logging
*/
struct kmod_ctx;
struct kmod_ctx *kmod_new(const char *dirname, const char * const *config_dirs);
struct kmod_ctx *kmod_ref(struct kmod_ctx *ctx);
struct kmod_ctx *kmod_unref(struct kmod_ctx *ctx);
void kmod_set_log_fn(struct kmod_ctx *ctx,
void (*log_fn)(void *log_data,
int priority, const char *file, int line,
const char *fn, const char *format,
va_list args),
const void *data);
int kmod_get_log_priority(const struct kmod_ctx *ctx);
void kmod_set_log_priority(struct kmod_ctx *ctx, int priority);
void *kmod_get_userdata(const struct kmod_ctx *ctx);
void kmod_set_userdata(struct kmod_ctx *ctx, const void *userdata);
int kmod_load_resources(struct kmod_ctx *ctx);
void kmod_unload_resources(struct kmod_ctx *ctx);
/*
* kmod_list
*
* access to kmod generated lists
*/
struct kmod_list;
struct kmod_list *kmod_list_next(const struct kmod_list *first_entry,
const struct kmod_list *list_entry);
struct kmod_list *kmod_list_prev(const struct kmod_list *first_entry,
const struct kmod_list *list_entry);
#define kmod_list_foreach(list_entry, first_entry) \
for (list_entry = first_entry; \
list_entry != NULL; \
list_entry = kmod_list_next(first_entry, list_entry))
int kmod_loaded_get_list(struct kmod_ctx *ctx, struct kmod_list **list);
enum kmod_remove {
KMOD_REMOVE_FORCE = O_TRUNC,
KMOD_REMOVE_NOWAIT = O_NONBLOCK,
};
enum kmod_insert {
KMOD_INSERT_FORCE_VERMAGIC = 0x1,
KMOD_INSERT_FORCE_MODVERSION = 0x2,
KMOD_INSERT_HANDLE_DEPENDENCIES = 0x4,
KMOD_INSERT_IGNORE_CONFIG = 0x8,
};
/*
* kmod_module
*
* Operate on kernel modules
*/
struct kmod_module;
int kmod_module_new_from_name(struct kmod_ctx *ctx, const char *name,
struct kmod_module **mod);
int kmod_module_new_from_path(struct kmod_ctx *ctx, const char *path,
struct kmod_module **mod);
int kmod_module_new_from_lookup(struct kmod_ctx *ctx, const char *alias,
struct kmod_list **list);
struct kmod_module *kmod_module_ref(struct kmod_module *mod);
struct kmod_module *kmod_module_unref(struct kmod_module *mod);
int kmod_module_unref_list(struct kmod_list *list);
struct kmod_module *kmod_module_get_module(const struct kmod_list *entry);
struct kmod_list *kmod_module_get_dependencies(const struct kmod_module *mod);
int kmod_module_get_filtered_blacklist(const struct kmod_ctx *ctx, const struct kmod_list *input, struct kmod_list **output);
int kmod_module_remove_module(struct kmod_module *mod, unsigned int flags);
int kmod_module_insert_module(struct kmod_module *mod, unsigned int flags, const char *options);
const char *kmod_module_get_name(const struct kmod_module *mod);
const char *kmod_module_get_path(const struct kmod_module *mod);
enum kmod_module_initstate {
KMOD_MODULE_BUILTIN = 0,
KMOD_MODULE_LIVE,
KMOD_MODULE_COMING,
KMOD_MODULE_GOING,
/* Padding to make sure enum is not mapped to char */
_KMOD_MODULE_PAD = (1 << 31),
};
const char *kmod_module_initstate_str(enum kmod_module_initstate initstate);
int kmod_module_get_initstate(const struct kmod_module *mod);
int kmod_module_get_refcnt(const struct kmod_module *mod);
struct kmod_list *kmod_module_get_holders(const struct kmod_module *mod);
struct kmod_list *kmod_module_get_sections(const struct kmod_module *mod);
const char *kmod_module_section_get_name(const struct kmod_list *entry);
unsigned long kmod_module_section_get_address(const struct kmod_list *entry);
void kmod_module_section_free_list(struct kmod_list *list);
long kmod_module_get_size(const struct kmod_module *mod);
const char *kmod_module_get_options(const struct kmod_module *mod);
const char *kmod_module_get_install_commands(const struct kmod_module *mod);
const char *kmod_module_get_remove_commands(const struct kmod_module *mod);
int kmod_resolve_alias_options(struct kmod_ctx *ctx, const char *alias, char **options);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif
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