niceSOFT/systemd: The systemd System and Service Manager

src/shared/module-util.h
67 строк2 KB
Luca Boccassi
shared: add DLOPEN_* wrapper macros that stamp .note.dlopen on callers
01 июн 2026, 20:24
01 июн 2026, 20:24590e226
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include "sd-dlopen.h"

#include "shared-forward.h"

#if HAVE_KMOD

#include <libkmod.h> /* IWYU pragma: export */

#include "dlfcn-util.h"

extern DLSYM_PROTOTYPE(kmod_list_next);
extern DLSYM_PROTOTYPE(kmod_load_resources);
extern DLSYM_PROTOTYPE(kmod_module_get_initstate);
extern DLSYM_PROTOTYPE(kmod_module_get_module);
extern DLSYM_PROTOTYPE(kmod_module_get_name);
extern DLSYM_PROTOTYPE(kmod_module_new_from_lookup);
extern DLSYM_PROTOTYPE(kmod_module_probe_insert_module);
extern DLSYM_PROTOTYPE(kmod_module_unref);
extern DLSYM_PROTOTYPE(kmod_module_unref_list);
extern DLSYM_PROTOTYPE(kmod_new);
extern DLSYM_PROTOTYPE(kmod_set_log_fn);
extern DLSYM_PROTOTYPE(kmod_unref);
extern DLSYM_PROTOTYPE(kmod_validate_resources);

DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(struct kmod_ctx*, sym_kmod_unref, kmod_unrefp, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(struct kmod_module*, sym_kmod_module_unref, kmod_module_unrefp, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(struct kmod_list*, sym_kmod_module_unref_list, kmod_module_unref_listp, NULL);

#define sym_kmod_list_foreach(list_entry, first_entry) \
        for (list_entry = first_entry; \
                list_entry != NULL; \
                list_entry = sym_kmod_list_next(first_entry, list_entry))

int module_load_and_warn(struct kmod_ctx *ctx, const char *module, bool verbose);
int module_setup_context(struct kmod_ctx **ret);

#define LIBKMOD_NOTE(priority)                                          \
        SD_ELF_NOTE_DLOPEN("kmod",                                      \
                           "Support for loading kernel modules",        \
                           priority,                                    \
                           "libkmod.so.2")

#define DLOPEN_LIBKMOD(log_level, priority)                             \
        ({                                                              \
                LIBKMOD_NOTE(priority);                                 \
                dlopen_libkmod(log_level);                              \
        })
#else

struct kmod_ctx;


static inline int module_setup_context(struct kmod_ctx **ret) {
        return -EOPNOTSUPP;
}

static inline int module_load_and_warn(struct kmod_ctx *ctx, const char *module, bool verbose) {
        return -EOPNOTSUPP;
}

#define DLOPEN_LIBKMOD(log_level, priority) dlopen_libkmod(log_level)
#endif

int dlopen_libkmod(int log_level);