// SPDX-License-Identifier: GPL-2.0

#include <linux/types.h>
#include <linux/kconfig.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/security.h>
#include <linux/highmem.h>
#include <linux/umh.h>
#include <linux/sysctl.h>

#include "fallback.h"
#include "firmware.h"

/*
 * firmware fallback configuration table
 */

struct firmware_fallback_config fw_fallback_config = {
        .force_sysfs_fallback = IS_ENABLED(CONFIG_FW_LOADER_USER_HELPER_FALLBACK),
        .loading_timeout = 60,
        .old_timeout = 60,
};
EXPORT_SYMBOL_NS_GPL(fw_fallback_config, "FIRMWARE_LOADER_PRIVATE");

#ifdef CONFIG_SYSCTL
static const struct ctl_table firmware_config_table[] = {
        {
                .procname       = "force_sysfs_fallback",
                .data           = &fw_fallback_config.force_sysfs_fallback,
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
                .proc_handler   = proc_douintvec_minmax,
                .extra1         = SYSCTL_ZERO,
                .extra2         = SYSCTL_ONE,
        },
        {
                .procname       = "ignore_sysfs_fallback",
                .data           = &fw_fallback_config.ignore_sysfs_fallback,
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
                .proc_handler   = proc_douintvec_minmax,
                .extra1         = SYSCTL_ZERO,
                .extra2         = SYSCTL_ONE,
        },
};

static struct ctl_table_header *firmware_config_sysct_table_header;
int register_firmware_config_sysctl(void)
{
        firmware_config_sysct_table_header =
                register_sysctl("kernel/firmware_config",
                                firmware_config_table);
        if (!firmware_config_sysct_table_header)
                return -ENOMEM;
        return 0;
}
EXPORT_SYMBOL_NS_GPL(register_firmware_config_sysctl, "FIRMWARE_LOADER_PRIVATE");

void unregister_firmware_config_sysctl(void)
{
        unregister_sysctl_table(firmware_config_sysct_table_header);
        firmware_config_sysct_table_header = NULL;
}
EXPORT_SYMBOL_NS_GPL(unregister_firmware_config_sysctl, "FIRMWARE_LOADER_PRIVATE");

#endif /* CONFIG_SYSCTL */