103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/** @file
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* @brief Bluetooth subsystem persistent storage APIs.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __BT_STORAGE_H
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#define __BT_STORAGE_H
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/**
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* @brief Persistent Storage
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* @defgroup bt_storage Persistent Storage
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* @ingroup bluetooth
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* @{
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*/
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#include <sys/types.h>
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#include <bluetooth/bluetooth.h>
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#include <bluetooth/hci.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Well known storage keys */
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enum {
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BT_STORAGE_ID_ADDR, /** Identity Address */
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BT_STORAGE_LOCAL_IRK, /** Local Identity Resolving Key */
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};
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struct bt_storage {
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/** Read the value of a key from storage.
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*
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* @param addr Remote address or NULL for local storage
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* @param key BT_STORAGE_* key to read
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* @param data Memory location to place the data
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* @param length Maximum number of bytes to read
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*
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* @return Number of bytes read or negative error value on
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* failure.
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*/
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ssize_t (*read)(const bt_addr_le_t *addr, uint16_t key,
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void *data, size_t length);
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/** Write the value of a key to storage.
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*
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* @param addr Remote address or NULL for local storage
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* @param key BT_STORAGE_* key to write
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* @param data Memory location of the data
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* @param length Number of bytes to write
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*
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* @return Number of bytes written or negative error value on
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* failure.
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*/
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ssize_t (*write)(const bt_addr_le_t *addr, uint16_t key,
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const void *data, size_t length);
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/** Clear all keys for a specific address
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*
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* @param addr Remote address, BT_ADDR_LE_ANY for all
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* remote devices, or NULL for local storage.
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*
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* @return 0 on success or negative error value on failure.
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*/
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int (*clear)(const bt_addr_le_t *addr);
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};
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void bt_storage_register(struct bt_storage *storage);
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/** Clear all storage keys for a specific address
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*
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* @param addr Remote address, NULL for local storage or
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* BT_ADDR_LE_ANY to clear all remote devices.
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*
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* @return 0 on success or negative error value on failure.
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*/
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int bt_storage_clear(bt_addr_le_t *addr);
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* __BT_STORAGE_H */
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