979fce0df5
NVS is used to store PHY calibration data, WiFi configuration, and BT configuration. Previously BT examples did not call nvs_flash_init, relying on the fact that it is called during PHY init. However PHY init did not handle possible NVS initialization errors. This change moves PHY init procedure into the application, and adds diagnostic messages to BT config management routines if NVS is not initialized.
422 lines
16 KiB
C
422 lines
16 KiB
C
/* BLE Security example_ble_security_gatts_demo example
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2
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3 This example code is in the Public Domain (or CC0 licensed, at your option.)
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4
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5 Unless required by applicable law or agreed to in writing, this
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6 software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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7 CONDITIONS OF ANY KIND, either express or implied.
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8 */
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "bt.h"
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#include "bta_api.h"
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#include "esp_gap_ble_api.h"
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#include "esp_gatts_api.h"
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#include "esp_bt_defs.h"
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#include "esp_bt_main.h"
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#include "esp_bt_main.h"
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#include "example_ble_sec_gatts_demo.h"
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#define GATTS_TABLE_TAG "SEC_GATTS_DEMO"
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#define HEART_PROFILE_NUM 1
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#define HEART_PROFILE_APP_IDX 0
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#define ESP_HEART_RATE_APP_ID 0x55
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#define EXCAMPLE_DEVICE_NAME "ESP_BLE_SECURITY"
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#define HEART_RATE_SVC_INST_ID 0
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#define GATTS_DEMO_CHAR_VAL_LEN_MAX 0x40
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uint8_t heart_str[] ={0x11,0x22,0x33};
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uint16_t heart_rate_handle_table[HRS_IDX_NB];
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esp_attr_value_t gatts_demo_char1_val =
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{
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.attr_max_len = GATTS_DEMO_CHAR_VAL_LEN_MAX,
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.attr_len = sizeof(heart_str),
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.attr_value = heart_str,
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};
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static uint8_t sec_service_uuid[16] = {
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/* LSB <--------------------------------------------------------------------------------> MSB */
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//first uuid, 16bit, [12],[13] is the value
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0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0x18, 0x0D, 0x00, 0x00,
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};
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static esp_ble_adv_data_t heart_rate_adv_config = {
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.set_scan_rsp = false,
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.include_name = true,
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.include_txpower = true,
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.min_interval = 0x100,
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.max_interval = 0x100,
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.appearance = 0x00,
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //&test_manufacturer[0],
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(sec_service_uuid),
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.p_service_uuid = sec_service_uuid,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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static esp_ble_adv_params_t heart_rate_adv_params = {
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.adv_int_min = 0x100,
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.adv_int_max = 0x100,
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.adv_type = ADV_TYPE_IND,
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.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
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.channel_map = ADV_CHNL_ALL,
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.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
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};
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struct gatts_profile_inst {
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esp_gatts_cb_t gatts_cb;
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uint16_t gatts_if;
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uint16_t app_id;
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uint16_t conn_id;
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uint16_t service_handle;
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esp_gatt_srvc_id_t service_id;
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uint16_t char_handle;
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esp_bt_uuid_t char_uuid;
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esp_gatt_perm_t perm;
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esp_gatt_char_prop_t property;
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uint16_t descr_handle;
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esp_bt_uuid_t descr_uuid;
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};
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static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
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esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
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/* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
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static struct gatts_profile_inst heart_rate_profile_tab[HEART_PROFILE_NUM] = {
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[HEART_PROFILE_APP_IDX] = {
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.gatts_cb = gatts_profile_event_handler,
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.gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
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},
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};
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/*
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* HTPT PROFILE ATTRIBUTES
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****************************************************************************************
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*/
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/*
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* Heart Rate PROFILE ATTRIBUTES
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****************************************************************************************
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*/
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/// Heart Rate Sensor Service
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static const uint16_t heart_rate_svc = ESP_GATT_UUID_HEALTH_THERMOM_SVC;
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#define CHAR_DECLARATION_SIZE (sizeof(uint8_t))
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static const uint16_t primary_service_uuid = ESP_GATT_UUID_PRI_SERVICE;
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static const uint16_t character_declaration_uuid = ESP_GATT_UUID_CHAR_DECLARE;
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static const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
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static const uint8_t char_prop_notify = ESP_GATT_CHAR_PROP_BIT_NOTIFY;
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static const uint8_t char_prop_read = ESP_GATT_CHAR_PROP_BIT_READ;
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static const uint8_t char_prop_read_write = ESP_GATT_CHAR_PROP_BIT_WRITE|ESP_GATT_CHAR_PROP_BIT_READ;
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/// Heart Rate Sensor Service - Heart Rate Measurement Characteristic, notify
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static const uint16_t heart_rate_meas_uuid = ESP_GATT_HEART_RATE_MEAS;
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static const uint8_t heart_measurement_ccc[2] ={ 0x00, 0x00};
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/// Heart Rate Sensor Service -Body Sensor Location characteristic, read
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static const uint16_t body_sensor_location_uuid = ESP_GATT_BODY_SENSOR_LOCATION;
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static const uint8_t body_sensor_loc_val[1] = {0x00};
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/// Heart Rate Sensor Service - Heart Rate Control Point characteristic, write&read
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static const uint16_t heart_rate_ctrl_point = ESP_GATT_HEART_RATE_CNTL_POINT;
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static const uint8_t heart_ctrl_point[1] = {0x00};
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/// Full HRS Database Description - Used to add attributes into the database
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static const esp_gatts_attr_db_t heart_rate_gatt_db[HRS_IDX_NB] =
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{
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// Heart Rate Service Declaration
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[HRS_IDX_SVC] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
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sizeof(uint16_t), sizeof(heart_rate_svc), (uint8_t *)&heart_rate_svc}},
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// Heart Rate Measurement Characteristic Declaration
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[HRS_IDX_HR_MEAS_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE,CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_notify}},
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// Heart Rate Measurement Characteristic Value
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[HRS_IDX_HR_MEAS_VAL] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&heart_rate_meas_uuid, ESP_GATT_PERM_READ,
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HRPS_HT_MEAS_MAX_LEN,0, NULL}},
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// Heart Rate Measurement Characteristic - Client Characteristic Configuration Descriptor
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[HRS_IDX_HR_MEAS_NTF_CFG] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ|ESP_GATT_PERM_WRITE,
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sizeof(uint16_t),sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},
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// Body Sensor Location Characteristic Declaration
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[HRS_IDX_BOBY_SENSOR_LOC_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE,CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read}},
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// Body Sensor Location Characteristic Value
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[HRS_IDX_BOBY_SENSOR_LOC_VAL] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&body_sensor_location_uuid, ESP_GATT_PERM_READ_ENCRYPTED,
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sizeof(uint8_t), sizeof(body_sensor_loc_val), (uint8_t *)body_sensor_loc_val}},
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// Heart Rate Control Point Characteristic Declaration
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[HRS_IDX_HR_CTNL_PT_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE,CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_write}},
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// Heart Rate Control Point Characteristic Value
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[HRS_IDX_HR_CTNL_PT_VAL] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&heart_rate_ctrl_point, ESP_GATT_PERM_WRITE_ENCRYPTED|ESP_GATT_PERM_READ_ENCRYPTED,
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sizeof(uint8_t), sizeof(heart_ctrl_point), (uint8_t *)heart_ctrl_point}},
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};
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static char *esp_key_type_to_str(esp_ble_key_type_t key_type)
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{
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char *key_str = NULL;
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switch(key_type) {
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case ESP_LE_KEY_NONE:
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key_str = "ESP_LE_KEY_NONE";
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break;
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case ESP_LE_KEY_PENC:
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key_str = "ESP_LE_KEY_PENC";
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break;
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case ESP_LE_KEY_PID:
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key_str = "ESP_LE_KEY_PID";
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break;
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case ESP_LE_KEY_PCSRK:
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key_str = "ESP_LE_KEY_PCSRK";
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break;
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case ESP_LE_KEY_PLK:
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key_str = "ESP_LE_KEY_PLK";
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break;
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case ESP_LE_KEY_LLK:
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key_str = "ESP_LE_KEY_LLK";
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break;
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case ESP_LE_KEY_LENC:
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key_str = "ESP_LE_KEY_LENC";
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break;
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case ESP_LE_KEY_LID:
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key_str = "ESP_LE_KEY_LID";
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break;
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case ESP_LE_KEY_LCSRK:
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key_str = "ESP_LE_KEY_LCSRK";
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break;
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default:
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key_str = "INVALID BLE KEY TYPE";
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break;
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}
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return key_str;
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}
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static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
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{
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ESP_LOGV(GATTS_TABLE_TAG, "GAP_EVT, event %d\n", event);
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switch (event) {
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case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
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esp_ble_gap_start_advertising(&heart_rate_adv_params);
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break;
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case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
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//advertising start complete event to indicate advertising start successfully or failed
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if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
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ESP_LOGE(GATTS_TABLE_TAG, "Advertising start failed\n");
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}
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break;
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case ESP_GAP_BLE_SEC_REQ_EVT:
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/* send the positive(true) security response to the peer device to accept the security request.
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If not accept the security request, should sent the security response with negative(false) accept value*/
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esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
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break;
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case ESP_GAP_BLE_PASSKEY_NOTIF_EVT: ///the app will receive this evt when the IO has Output capability and the peer device IO has Input capability.
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///show the passkey number to the user to input it in the peer deivce.
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ESP_LOGE(GATTS_TABLE_TAG, "The passkey Notify number:%d", param->ble_security.key_notif.passkey);
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break;
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case ESP_GAP_BLE_KEY_EVT:
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//shows the ble key info share with peer device to the user.
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ESP_LOGI(GATTS_TABLE_TAG, "key type = %s", esp_key_type_to_str(param->ble_security.ble_key.key_type));
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break;
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case ESP_GAP_BLE_AUTH_CMPL_EVT: {
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esp_bd_addr_t bd_addr;
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memcpy(bd_addr, param->ble_security.auth_cmpl.bd_addr, sizeof(esp_bd_addr_t));
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ESP_LOGI(GATTS_TABLE_TAG, "remote BD_ADDR: %08x%04x",\
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(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
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(bd_addr[4] << 8) + bd_addr[5]);
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ESP_LOGI(GATTS_TABLE_TAG, "address type = %d", param->ble_security.auth_cmpl.addr_type);
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ESP_LOGI(GATTS_TABLE_TAG, "pair status = %s",param->ble_security.auth_cmpl.success ? "success" : "fail");
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break;
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}
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default:
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break;
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}
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}
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static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
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esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
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{
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ESP_LOGV(GATTS_TABLE_TAG, "event = %x\n",event);
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switch (event) {
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case ESP_GATTS_REG_EVT:
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ESP_LOGD(GATTS_TABLE_TAG, "%s %d\n", __func__, __LINE__);
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esp_ble_gap_set_device_name(EXCAMPLE_DEVICE_NAME);
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ESP_LOGD(GATTS_TABLE_TAG, "%s %d\n", __func__, __LINE__);
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esp_ble_gap_config_adv_data(&heart_rate_adv_config);
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ESP_LOGD(GATTS_TABLE_TAG, "%s %d\n", __func__, __LINE__);
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esp_ble_gatts_create_attr_tab(heart_rate_gatt_db, gatts_if,
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HRS_IDX_NB, HEART_RATE_SVC_INST_ID);
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break;
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case ESP_GATTS_READ_EVT:
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break;
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case ESP_GATTS_WRITE_EVT:
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break;
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case ESP_GATTS_EXEC_WRITE_EVT:
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break;
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case ESP_GATTS_MTU_EVT:
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break;
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case ESP_GATTS_CONF_EVT:
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break;
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case ESP_GATTS_UNREG_EVT:
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break;
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case ESP_GATTS_DELETE_EVT:
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break;
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case ESP_GATTS_START_EVT:
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break;
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case ESP_GATTS_STOP_EVT:
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break;
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case ESP_GATTS_CONNECT_EVT:
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//start security connect with peer device when receive the connect event sent by the master.
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esp_ble_set_encryption(param->connect.remote_bda, ESP_BLE_SEC_ENCRYPT_MITM);
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break;
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case ESP_GATTS_DISCONNECT_EVT:
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///start advertising again when missing the connect.
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esp_ble_gap_start_advertising(&heart_rate_adv_params);
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break;
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case ESP_GATTS_OPEN_EVT:
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break;
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case ESP_GATTS_CANCEL_OPEN_EVT:
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break;
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case ESP_GATTS_CLOSE_EVT:
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break;
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case ESP_GATTS_LISTEN_EVT:
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break;
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case ESP_GATTS_CONGEST_EVT:
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break;
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case ESP_GATTS_CREAT_ATTR_TAB_EVT: {
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ESP_LOGD(GATTS_TABLE_TAG, "The number handle =%x\n",param->add_attr_tab.num_handle);
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if(param->add_attr_tab.num_handle == HRS_IDX_NB) {
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memcpy(heart_rate_handle_table, param->add_attr_tab.handles,
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sizeof(heart_rate_handle_table));
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esp_ble_gatts_start_service(heart_rate_handle_table[HRS_IDX_SVC]);
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}
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break;
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}
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default:
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break;
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}
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}
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static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if,
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esp_ble_gatts_cb_param_t *param)
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{
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/* If event is register event, store the gatts_if for each profile */
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if (event == ESP_GATTS_REG_EVT) {
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if (param->reg.status == ESP_GATT_OK) {
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heart_rate_profile_tab[HEART_PROFILE_APP_IDX].gatts_if = gatts_if;
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} else {
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ESP_LOGI(GATTS_TABLE_TAG, "Reg app failed, app_id %04x, status %d\n",
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param->reg.app_id,
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param->reg.status);
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return;
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}
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}
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do {
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int idx;
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for (idx = 0; idx < HEART_PROFILE_NUM; idx++) {
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if (gatts_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
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gatts_if == heart_rate_profile_tab[idx].gatts_if) {
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if (heart_rate_profile_tab[idx].gatts_cb) {
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heart_rate_profile_tab[idx].gatts_cb(event, gatts_if, param);
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}
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}
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}
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} while (0);
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}
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void app_main()
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{
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esp_err_t ret;
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// Initialize NVS.
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ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK( ret );
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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ret = esp_bt_controller_init(&bt_cfg);
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if (ret) {
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ESP_LOGE(GATTS_TABLE_TAG, "%s init controller failed", __func__);
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return;
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}
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ret = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
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if (ret) {
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ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed", __func__);
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return;
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}
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ESP_LOGI(GATTS_TABLE_TAG, "%s init bluetooth", __func__);
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ret = esp_bluedroid_init();
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if (ret) {
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ESP_LOGE(GATTS_TABLE_TAG, "%s init bluetooth failed", __func__);
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return;
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}
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ret = esp_bluedroid_enable();
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if (ret) {
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ESP_LOGE(GATTS_TABLE_TAG, "%s enable bluetooth failed", __func__);
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return;
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}
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esp_ble_gatts_register_callback(gatts_event_handler);
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esp_ble_gap_register_callback(gap_event_handler);
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esp_ble_gatts_app_register(ESP_HEART_RATE_APP_ID);
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/* set the security iocap & auth_req & key size & init key response key parameters to the stack*/
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esp_ble_auth_req_t auth_req = ESP_LE_AUTH_BOND; //bonding with peer device after authentication
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esp_ble_io_cap_t iocap = ESP_IO_CAP_NONE; //set the IO capability to No output No input
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uint8_t key_size = 16; //the key size should be 7~16 bytes
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uint8_t init_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
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uint8_t rsp_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
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esp_ble_gap_set_security_param(ESP_BLE_SM_AUTHEN_REQ_MODE, &auth_req, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_IOCAP_MODE, &iocap, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_MAX_KEY_SIZE, &key_size, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_SET_INIT_KEY, &init_key, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_SET_RSP_KEY, &rsp_key, sizeof(uint8_t));
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}
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