466 lines
11 KiB
C
466 lines
11 KiB
C
/*
|
|
* Copyright (c) 2018 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <zephyr.h>
|
|
#include <bluetooth.h>
|
|
#include <conn.h>
|
|
|
|
#define BT_DBG_ENABLED IS_ENABLED(CONFIG_BT_DEBUG_SETTINGS)
|
|
#define LOG_MODULE_NAME bt_settings
|
|
#include "log.h"
|
|
|
|
#include "hci_core.h"
|
|
#include "settings.h"
|
|
#include "keys.h"
|
|
#include "gatt.h"
|
|
#if defined(BFLB_BLE)
|
|
#include <stdlib.h>
|
|
#if defined(CONFIG_BT_SETTINGS)
|
|
#include "easyflash.h"
|
|
#endif
|
|
#include <FreeRTOS.h>
|
|
#include "portable.h"
|
|
#endif
|
|
|
|
#if defined(CONFIG_BT_SETTINGS_USE_PRINTK)
|
|
void bt_settings_encode_key(char *path, size_t path_size, const char *subsys,
|
|
bt_addr_le_t *addr, const char *key)
|
|
{
|
|
if (key) {
|
|
snprintk(path, path_size,
|
|
"bt/%s/%02x%02x%02x%02x%02x%02x%u/%s", subsys,
|
|
addr->a.val[5], addr->a.val[4], addr->a.val[3],
|
|
addr->a.val[2], addr->a.val[1], addr->a.val[0],
|
|
addr->type, key);
|
|
} else {
|
|
snprintk(path, path_size,
|
|
"bt/%s/%02x%02x%02x%02x%02x%02x%u", subsys,
|
|
addr->a.val[5], addr->a.val[4], addr->a.val[3],
|
|
addr->a.val[2], addr->a.val[1], addr->a.val[0],
|
|
addr->type);
|
|
}
|
|
|
|
BT_DBG("Encoded path %s", log_strdup(path));
|
|
}
|
|
#else
|
|
void bt_settings_encode_key(char *path, size_t path_size, const char *subsys,
|
|
bt_addr_le_t *addr, const char *key)
|
|
{
|
|
size_t len = 3;
|
|
|
|
/* Skip if path_size is less than 3; strlen("bt/") */
|
|
if (len < path_size) {
|
|
/* Key format:
|
|
* "bt/<subsys>/<addr><type>/<key>", "/<key>" is optional
|
|
*/
|
|
strcpy(path, "bt/");
|
|
strncpy(&path[len], subsys, path_size - len);
|
|
len = strlen(path);
|
|
|
|
if (len < path_size) {
|
|
path[len] = '/';
|
|
len++;
|
|
}
|
|
|
|
for (s8_t i = 5; i >= 0 && len < path_size; i--) {
|
|
len += bin2hex(&addr->a.val[i], 1, &path[len],
|
|
path_size - len);
|
|
}
|
|
|
|
if (len < path_size) {
|
|
/* Type can be either BT_ADDR_LE_PUBLIC or
|
|
* BT_ADDR_LE_RANDOM (value 0 or 1)
|
|
*/
|
|
path[len] = '0' + addr->type;
|
|
len++;
|
|
}
|
|
|
|
if (key && len < path_size) {
|
|
path[len] = '/';
|
|
len++;
|
|
strncpy(&path[len], key, path_size - len);
|
|
len += strlen(&path[len]);
|
|
}
|
|
|
|
if (len >= path_size) {
|
|
/* Truncate string */
|
|
path[path_size - 1] = '\0';
|
|
}
|
|
} else if (path_size > 0) {
|
|
*path = '\0';
|
|
}
|
|
|
|
BT_DBG("Encoded path %s", log_strdup(path));
|
|
}
|
|
#endif
|
|
|
|
#if !defined(BFLB_BLE)
|
|
int bt_settings_decode_key(const char *key, bt_addr_le_t *addr)
|
|
{
|
|
if (settings_name_next(key, NULL) != 13) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (key[12] == '0') {
|
|
addr->type = BT_ADDR_LE_PUBLIC;
|
|
} else if (key[12] == '1') {
|
|
addr->type = BT_ADDR_LE_RANDOM;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (u8_t i = 0; i < 6; i++) {
|
|
hex2bin(&key[i * 2], 2, &addr->a.val[5 - i], 1);
|
|
}
|
|
|
|
BT_DBG("Decoded %s as %s", log_strdup(key), bt_addr_le_str(addr));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set(const char *name, size_t len_rd, settings_read_cb read_cb,
|
|
void *cb_arg)
|
|
{
|
|
ssize_t len;
|
|
const char *next;
|
|
|
|
if (!name) {
|
|
BT_ERR("Insufficient number of arguments");
|
|
return -ENOENT;
|
|
}
|
|
|
|
len = settings_name_next(name, &next);
|
|
|
|
if (!strncmp(name, "id", len)) {
|
|
/* Any previously provided identities supersede flash */
|
|
if (atomic_test_bit(bt_dev.flags, BT_DEV_PRESET_ID)) {
|
|
BT_WARN("Ignoring identities stored in flash");
|
|
return 0;
|
|
}
|
|
|
|
len = read_cb(cb_arg, &bt_dev.id_addr, sizeof(bt_dev.id_addr));
|
|
|
|
if (len < sizeof(bt_dev.id_addr[0])) {
|
|
if (len < 0) {
|
|
BT_ERR("Failed to read ID address from storage"
|
|
" (err %zu)",
|
|
len);
|
|
} else {
|
|
BT_ERR("Invalid length ID address in storage");
|
|
BT_HEXDUMP_DBG(&bt_dev.id_addr, len,
|
|
"data read");
|
|
}
|
|
|
|
(void)memset(bt_dev.id_addr, 0,
|
|
sizeof(bt_dev.id_addr));
|
|
bt_dev.id_count = 0U;
|
|
} else {
|
|
int i;
|
|
|
|
bt_dev.id_count = len / sizeof(bt_dev.id_addr[0]);
|
|
|
|
for (i = 0; i < bt_dev.id_count; i++) {
|
|
BT_DBG("ID[%d] %s", i,
|
|
bt_addr_le_str(&bt_dev.id_addr[i]));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_BT_DEVICE_NAME_DYNAMIC)
|
|
|
|
if (!strncmp(name, "name", len)) {
|
|
len = read_cb(cb_arg, &bt_dev.name, sizeof(bt_dev.name) - 1);
|
|
|
|
if (len < 0) {
|
|
BT_ERR("Failed to read device name from storage"
|
|
" (err %zu)",
|
|
len);
|
|
} else {
|
|
bt_dev.name[len] = '\0';
|
|
|
|
BT_DBG("Name set to %s", log_strdup(bt_dev.name));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined(CONFIG_BT_PRIVACY)
|
|
|
|
if (!strncmp(name, "irk", len)) {
|
|
len = read_cb(cb_arg, bt_dev.irk, sizeof(bt_dev.irk));
|
|
|
|
if (len < sizeof(bt_dev.irk[0])) {
|
|
if (len < 0) {
|
|
BT_ERR("Failed to read IRK from storage"
|
|
" (err %zu)",
|
|
len);
|
|
} else {
|
|
BT_ERR("Invalid length IRK in storage");
|
|
(void)memset(bt_dev.irk, 0, sizeof(bt_dev.irk));
|
|
}
|
|
} else {
|
|
int i, count;
|
|
|
|
count = len / sizeof(bt_dev.irk[0]);
|
|
|
|
for (i = 0; i < count; i++) {
|
|
BT_DBG("IRK[%d] %s", i,
|
|
bt_hex(bt_dev.irk[i], 16));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_BT_PRIVACY */
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
#define ID_DATA_LEN(array) (bt_dev.id_count * sizeof(array[0]))
|
|
|
|
static void save_id(struct k_work *work)
|
|
{
|
|
int err;
|
|
BT_INFO("Saving ID");
|
|
err = settings_save_one("bt/id", &bt_dev.id_addr,
|
|
ID_DATA_LEN(bt_dev.id_addr));
|
|
|
|
if (err) {
|
|
BT_ERR("Failed to save ID (err %d)", err);
|
|
}
|
|
|
|
#if defined(CONFIG_BT_PRIVACY)
|
|
err = settings_save_one("bt/irk", bt_dev.irk, ID_DATA_LEN(bt_dev.irk));
|
|
|
|
if (err) {
|
|
BT_ERR("Failed to save IRK (err %d)", err);
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
K_WORK_DEFINE(save_id_work, save_id);
|
|
#endif //!BFLB_BLE
|
|
#if defined(BFLB_BLE)
|
|
#if defined(CONFIG_BT_SETTINGS)
|
|
bool ef_ready_flag = false;
|
|
int bt_check_if_ef_ready()
|
|
{
|
|
int err = 0;
|
|
|
|
if (!ef_ready_flag) {
|
|
err = easyflash_init();
|
|
|
|
if (!err) {
|
|
ef_ready_flag = true;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int bt_settings_set_bin(const char *key, const uint8_t *value, size_t length)
|
|
{
|
|
const char *lookup = "0123456789abcdef";
|
|
char *str_value;
|
|
int err;
|
|
|
|
err = bt_check_if_ef_ready();
|
|
|
|
if (err) {
|
|
return err;
|
|
}
|
|
|
|
str_value = pvPortMalloc(length * 2 + 1);
|
|
|
|
BT_ASSERT(str_value != NULL);
|
|
|
|
for (size_t i = 0; i < length; i++) {
|
|
str_value[(i * 2) + 0] = lookup[(value[i] >> 4) & 0x0F];
|
|
str_value[(i * 2) + 1] = lookup[value[i] & 0x0F];
|
|
}
|
|
|
|
str_value[length * 2] = '\0';
|
|
|
|
err = ef_set_env(key, (const char *)str_value);
|
|
|
|
vPortFree(str_value);
|
|
|
|
return err;
|
|
}
|
|
|
|
int bt_settings_get_bin(const char *key, u8_t *value, size_t exp_len, size_t *real_len)
|
|
{
|
|
char *str_value;
|
|
size_t str_value_len;
|
|
char rand[3];
|
|
int err;
|
|
|
|
err = bt_check_if_ef_ready();
|
|
|
|
if (err) {
|
|
return err;
|
|
}
|
|
|
|
str_value = ef_get_env(key);
|
|
|
|
if (str_value == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
str_value_len = strlen(str_value);
|
|
|
|
if ((str_value_len % 2) != 0 || (exp_len > 0 && str_value_len > exp_len * 2)) {
|
|
return -1;
|
|
}
|
|
|
|
if (real_len) {
|
|
*real_len = str_value_len / 2;
|
|
}
|
|
|
|
for (size_t i = 0; i < str_value_len / 2; i++) {
|
|
strncpy(rand, str_value + 2 * i, 2);
|
|
rand[2] = '\0';
|
|
value[i] = strtol(rand, NULL, 16);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int settings_delete(const char *key)
|
|
{
|
|
return ef_del_env(key);
|
|
}
|
|
|
|
int settings_save_one(const char *key, const u8_t *value, size_t length)
|
|
{
|
|
return bt_settings_set_bin(key, value, length);
|
|
}
|
|
#endif //CONFIG_BT_SETTINGS
|
|
#endif
|
|
|
|
void bt_settings_save_id(void)
|
|
{
|
|
#if defined(BFLB_BLE)
|
|
#if defined(CONFIG_BT_SETTINGS)
|
|
|
|
if (bt_check_if_ef_ready()) {
|
|
return;
|
|
}
|
|
|
|
bt_settings_set_bin(NV_LOCAL_ID_ADDR, (const u8_t *)&bt_dev.id_addr[0], sizeof(bt_addr_le_t) * CONFIG_BT_ID_MAX);
|
|
#if defined(CONFIG_BT_PRIVACY)
|
|
bt_settings_set_bin(NV_LOCAL_IRK, (const u8_t *)&bt_dev.irk[0], 16 * CONFIG_BT_ID_MAX);
|
|
#endif //CONFIG_BT_PRIVACY
|
|
#endif //CONFIG_BT_SETTINGS
|
|
#else
|
|
k_work_submit(&save_id_work);
|
|
#endif
|
|
}
|
|
|
|
#if defined(BFLB_BLE)
|
|
#if defined(CONFIG_BT_SETTINGS)
|
|
void bt_settings_save_name(void)
|
|
{
|
|
if (bt_check_if_ef_ready()) {
|
|
return;
|
|
}
|
|
|
|
ef_set_env(NV_LOCAL_NAME, bt_dev.name);
|
|
}
|
|
|
|
void bt_local_info_load(void)
|
|
{
|
|
if (bt_check_if_ef_ready()) {
|
|
return;
|
|
}
|
|
|
|
#if defined(CONFIG_BT_DEVICE_NAME_DYNAMIC)
|
|
char *dev_name;
|
|
uint8_t len;
|
|
dev_name = ef_get_env(NV_LOCAL_NAME);
|
|
|
|
if (dev_name != NULL) {
|
|
len = ((strlen(dev_name) + 1) < CONFIG_BT_DEVICE_NAME_MAX) ? (strlen(dev_name) + 1) : CONFIG_BT_DEVICE_NAME_MAX;
|
|
memcpy(bt_dev.name, dev_name, len);
|
|
}
|
|
|
|
#endif
|
|
bt_settings_get_bin(NV_LOCAL_ID_ADDR, (u8_t *)&bt_dev.id_addr[0], sizeof(bt_addr_le_t) * CONFIG_BT_ID_MAX, NULL);
|
|
#if defined(CONFIG_BT_PRIVACY)
|
|
bt_settings_get_bin(NV_LOCAL_IRK, (u8_t *)&bt_dev.irk[0][0], 16 * CONFIG_BT_ID_MAX, NULL);
|
|
#endif
|
|
}
|
|
#endif //CONFIG_BT_SETTINGS
|
|
#endif
|
|
|
|
#if !defined(BFLB_BLE)
|
|
static int commit(void)
|
|
{
|
|
BT_DBG("");
|
|
|
|
#if defined(CONFIG_BT_DEVICE_NAME_DYNAMIC)
|
|
|
|
if (bt_dev.name[0] == '\0') {
|
|
bt_set_name(CONFIG_BT_DEVICE_NAME);
|
|
}
|
|
|
|
#endif
|
|
|
|
if (!bt_dev.id_count) {
|
|
int err;
|
|
|
|
err = bt_setup_id_addr();
|
|
|
|
if (err) {
|
|
BT_ERR("Unable to setup an identity address");
|
|
return err;
|
|
}
|
|
}
|
|
|
|
/* Make sure that the identities created by bt_id_create after
|
|
* bt_enable is saved to persistent storage. */
|
|
if (!atomic_test_bit(bt_dev.flags, BT_DEV_PRESET_ID)) {
|
|
bt_settings_save_id();
|
|
}
|
|
|
|
if (!atomic_test_bit(bt_dev.flags, BT_DEV_READY)) {
|
|
bt_finalize_init();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
SETTINGS_STATIC_HANDLER_DEFINE(bt, "bt", NULL, set, commit, NULL);
|
|
|
|
#endif //!BFLB_BLE
|
|
|
|
int bt_settings_init(void)
|
|
{
|
|
#if defined(BFLB_BLE)
|
|
return 0;
|
|
#else
|
|
int err;
|
|
|
|
BT_DBG("");
|
|
|
|
err = settings_subsys_init();
|
|
|
|
if (err) {
|
|
BT_ERR("settings_subsys_init failed (err %d)", err);
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
#endif
|
|
}
|