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