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/*
* Copyright (c) 2019 Tobias Svehagen
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_INCLUDE_BLUETOOTH_MESH_CDB_H_
#define ZEPHYR_INCLUDE_BLUETOOTH_MESH_CDB_H_
#include <inttypes.h>
#include <sys/atomic.h>
#ifdef __cplusplus
extern "C" {
#endif
#if defined(CONFIG_BT_MESH_CDB)
#define NODE_COUNT CONFIG_BT_MESH_CDB_NODE_COUNT
#define SUBNET_COUNT CONFIG_BT_MESH_CDB_SUBNET_COUNT
#define APP_KEY_COUNT CONFIG_BT_MESH_CDB_APP_KEY_COUNT
#else
#define NODE_COUNT 0
#define SUBNET_COUNT 0
#define APP_KEY_COUNT 0
#endif
enum {
BT_MESH_CDB_NODE_CONFIGURED,
BT_MESH_CDB_NODE_FLAG_COUNT
};
struct bt_mesh_cdb_node {
uint8_t uuid[16];
uint16_t addr;
uint16_t net_idx;
uint8_t num_elem;
uint8_t dev_key[16];
ATOMIC_DEFINE(flags, BT_MESH_CDB_NODE_FLAG_COUNT);
};
struct bt_mesh_cdb_subnet {
uint16_t net_idx;
uint8_t kr_phase;
struct {
uint8_t net_key[16];
} keys[2];
};
struct bt_mesh_cdb_app_key {
uint16_t net_idx;
uint16_t app_idx;
struct {
uint8_t app_key[16];
} keys[2];
};
enum {
BT_MESH_CDB_VALID,
BT_MESH_CDB_SUBNET_PENDING,
BT_MESH_CDB_KEYS_PENDING,
BT_MESH_CDB_NODES_PENDING,
BT_MESH_CDB_IVU_IN_PROGRESS,
BT_MESH_CDB_FLAG_COUNT,
};
struct bt_mesh_cdb {
uint32_t iv_index;
ATOMIC_DEFINE(flags, BT_MESH_CDB_FLAG_COUNT);
struct bt_mesh_cdb_node nodes[NODE_COUNT];
struct bt_mesh_cdb_subnet subnets[SUBNET_COUNT];
struct bt_mesh_cdb_app_key app_keys[APP_KEY_COUNT];
};
extern struct bt_mesh_cdb bt_mesh_cdb;
/** @brief Create the Mesh Configuration Database.
*
* Create and initialize the Mesh Configuration Database. A primary subnet,
* ie one with NetIdx 0, will be added and the provided key will be used as
* NetKey for that subnet.
*
* @param key The NetKey to be used for the primary subnet.
*
* @return 0 on success or negative error code on failure.
*/
int bt_mesh_cdb_create(const uint8_t key[16]);
/** @brief Clear the Mesh Configuration Database.
*
* Remove all nodes, subnets and app-keys stored in the database and mark
* the database as invalid. The data will be cleared from persistent storage
* if CONFIG_BT_SETTINGS is enabled.
*/
void bt_mesh_cdb_clear(void);
/** @brief Set and store the IV Index and IV Update flag.
*
* The IV Index stored in the CDB will be the one used during provisioning
* of new nodes. This function is generally only used from inside the stack.
*
* This function will store the data to persistent storage if
* CONFIG_BT_SETTINGS is enabled.
*
* @param iv_index The new IV Index to use.
* @param iv_update True if there is an ongoing IV Update procedure.
*/
void bt_mesh_cdb_iv_update(uint32_t iv_index, bool iv_update);
/** @brief Allocate a node.
*
* Allocate a new node in the CDB.
*
* @param uuid UUID of the node.
* @param addr Address of the node's primary element. If 0, the lowest
* possible address available will be assigned to the node.
* @param num_elem Number of elements that the node has.
* @param net_idx NetIdx that the node was provisioned to.
*
* @return The new node or NULL if it cannot be allocated.
*/
struct bt_mesh_cdb_node *bt_mesh_cdb_node_alloc(const uint8_t uuid[16], uint16_t addr,
uint8_t num_elem, uint16_t net_idx);
/** @brief Delete a node.
*
* Delete a node from the CDB.
*
* @param node The node to be deleted.
* @param store If true, the node will be cleared from persistent storage.
*/
void bt_mesh_cdb_node_del(struct bt_mesh_cdb_node *node, bool store);
/** @brief Get a node by address.
*
* Try to find the node that has the provided address assigned to one of its
* elements.
*
* @param addr Address of the element to look for.
*
* @return The node that has an element with address addr or NULL if no such
* node exists.
*/
struct bt_mesh_cdb_node *bt_mesh_cdb_node_get(uint16_t addr);
/** @brief Store node to persistent storage.
*
* @param node Node to be stored.
*/
void bt_mesh_cdb_node_store(const struct bt_mesh_cdb_node *node);
enum {
BT_MESH_CDB_ITER_STOP = 0,
BT_MESH_CDB_ITER_CONTINUE,
};
/** @typedef bt_mesh_cdb_node_func_t
* @brief Node iterator callback.
*
* @param node Node found.
* @param user_data Data given.
*
* @return BT_MESH_CDB_ITER_CONTINUE to continue to iterate through the nodes
* or BT_MESH_CDB_ITER_STOP to stop.
*/
typedef uint8_t (*bt_mesh_cdb_node_func_t)(struct bt_mesh_cdb_node *node,
void *user_data);
/** @brief Node iterator.
*
* Iterate nodes in the Mesh Configuration Database. The callback function
* will only be called for valid, ie allocated, nodes.
*
* @param func Callback function.
* @param user_data Data to pass to the callback.
*/
void bt_mesh_cdb_node_foreach(bt_mesh_cdb_node_func_t func, void *user_data);
/** @brief Allocate a subnet.
*
* Allocate a new subnet in the CDB.
*
* @param net_idx NetIdx of the subnet.
*
* @return The new subnet or NULL if it cannot be allocated.
*/
struct bt_mesh_cdb_subnet *bt_mesh_cdb_subnet_alloc(uint16_t net_idx);
/** @brief Delete a subnet.
*
* Delete a subnet from the CDB.
*
* @param sub The subnet to be deleted.
* @param store If true, the subnet will be cleared from persistent storage.
*/
void bt_mesh_cdb_subnet_del(struct bt_mesh_cdb_subnet *sub, bool store);
/** @brief Get a subnet by NetIdx
*
* Try to find the subnet with the specified NetIdx.
*
* @param net_idx NetIdx of the subnet to look for.
*
* @return The subnet with the specified NetIdx or NULL if no such subnet
* exists.
*/
struct bt_mesh_cdb_subnet *bt_mesh_cdb_subnet_get(uint16_t net_idx);
/** @brief Store subnet to persistent storage.
*
* @param sub Subnet to be stored.
*/
void bt_mesh_cdb_subnet_store(const struct bt_mesh_cdb_subnet *sub);
/** @brief Get the flags for a subnet
*
* @param sub The subnet to get flags for.
*
* @return The flags for the subnet.
*/
uint8_t bt_mesh_cdb_subnet_flags(const struct bt_mesh_cdb_subnet *sub);
/** @brief Allocate an application key.
*
* Allocate a new application key in the CDB.
*
* @param net_idx NetIdx of NetKey that the application key is bound to.
* @param app_idx AppIdx of the application key.
*
* @return The new application key or NULL if it cannot be allocated.
*/
struct bt_mesh_cdb_app_key *bt_mesh_cdb_app_key_alloc(uint16_t net_idx,
uint16_t app_idx);
/** @brief Delete an application key.
*
* Delete an application key from the CDB.
*
* @param key The application key to be deleted.
* @param store If true, the key will be cleared from persistent storage.
*/
void bt_mesh_cdb_app_key_del(struct bt_mesh_cdb_app_key *key, bool store);
/** @brief Get an application key by AppIdx
*
* Try to find the application key with the specified AppIdx.
*
* @param app_idx AppIdx of the application key to look for.
*
* @return The application key with the specified AppIdx or NULL if no such key
* exists.
*/
struct bt_mesh_cdb_app_key *bt_mesh_cdb_app_key_get(uint16_t app_idx);
/** @brief Store application key to persistent storage.
*
* @param key Application key to be stored.
*/
void bt_mesh_cdb_app_key_store(const struct bt_mesh_cdb_app_key *key);
#ifdef __cplusplus
}
#endif
#endif /* ZEPHYR_INCLUDE_BLUETOOTH_MESH_CDB_H_ */