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https://github.com/espressif/esp-idf.git
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7759079362
- `protocomm` depends on a config option `CONFIG_WIFI_PROV_BLE_FORCE_ENCRYPTION` from `wifi_provisioning`; however, a lower layer component (`protocomm`) should not have any `#ifdef` guard dependent on an upper layer component (`wifi_provisioning`). - Added a new `ble_link_encryption` flag in `protocomm_ble_config_t` to manage the same Closes https://github.com/espressif/esp-idf/issues/9443
280 lines
8.6 KiB
C
280 lines
8.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include <esp_log.h>
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#include <esp_err.h>
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#include "esp_bt.h"
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#include <protocomm.h>
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#include <protocomm_ble.h>
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#include "wifi_provisioning/scheme_ble.h"
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#include "wifi_provisioning_priv.h"
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static const char *TAG = "wifi_prov_scheme_ble";
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extern const wifi_prov_scheme_t wifi_prov_scheme_ble;
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static uint8_t *custom_service_uuid;
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static uint8_t *custom_manufacturer_data;
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static size_t custom_manufacturer_data_len;
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static esp_err_t prov_start(protocomm_t *pc, void *config)
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{
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if (!pc) {
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ESP_LOGE(TAG, "Protocomm handle cannot be null");
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return ESP_ERR_INVALID_ARG;
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}
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if (!config) {
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ESP_LOGE(TAG, "Cannot start with null configuration");
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return ESP_ERR_INVALID_ARG;
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}
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protocomm_ble_config_t *ble_config = (protocomm_ble_config_t *) config;
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#if defined(CONFIG_WIFI_PROV_BLE_BONDING)
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ble_config->ble_bonding = 1;
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#endif
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#if defined(CONFIG_WIFI_PROV_BLE_SEC_CONN) || defined(CONFIG_BT_BLUEDROID_ENABLED)
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ble_config->ble_sm_sc = 1;
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#endif
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#if defined(CONFIG_WIFI_PROV_BLE_FORCE_ENCRYPTION)
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ble_config->ble_link_encryption = 1;
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#endif
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/* Start protocomm as BLE service */
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if (protocomm_ble_start(pc, ble_config) != ESP_OK) {
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ESP_LOGE(TAG, "Failed to start protocomm BLE service");
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return ESP_FAIL;
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}
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return ESP_OK;
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}
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esp_err_t wifi_prov_scheme_ble_set_service_uuid(uint8_t *uuid128)
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{
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if (!uuid128) {
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return ESP_ERR_INVALID_ARG;
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}
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custom_service_uuid = uuid128;
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return ESP_OK;
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}
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esp_err_t wifi_prov_scheme_ble_set_mfg_data(uint8_t *mfg_data, ssize_t mfg_data_len)
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{
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if (!mfg_data || !mfg_data_len) {
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return ESP_ERR_INVALID_ARG;
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}
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custom_manufacturer_data = (uint8_t *) malloc(mfg_data_len);
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if (custom_manufacturer_data == NULL) {
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ESP_LOGE(TAG, "Error allocating memory for mfg_data");
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return ESP_ERR_NO_MEM;
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}
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custom_manufacturer_data_len = mfg_data_len;
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memcpy(custom_manufacturer_data, mfg_data, mfg_data_len);
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return ESP_OK;
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}
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static void *new_config(void)
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{
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protocomm_ble_config_t *ble_config = calloc(1, sizeof(protocomm_ble_config_t));
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if (!ble_config) {
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ESP_LOGE(TAG, "Error allocating memory for new configuration");
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return NULL;
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}
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/* The default provisioning service UUID */
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const uint8_t service_uuid[16] = {
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/* LSB <---------------------------------------
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* ---------------------------------------> MSB */
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0x07, 0xed, 0x9b, 0x2d, 0x0f, 0x06, 0x7c, 0x87,
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0x9b, 0x43, 0x43, 0x6b, 0x4d, 0x24, 0x75, 0x17,
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};
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memcpy(ble_config->service_uuid, service_uuid, sizeof(ble_config->service_uuid));
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return ble_config;
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}
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static void delete_config(void *config)
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{
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if (!config) {
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ESP_LOGE(TAG, "Cannot delete null configuration");
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return;
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}
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protocomm_ble_config_t *ble_config = (protocomm_ble_config_t *) config;
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for (unsigned int i = 0; i < ble_config->nu_lookup_count; i++) {
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free((void *)ble_config->nu_lookup[i].name);
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}
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free(ble_config->nu_lookup);
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free(ble_config);
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}
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static esp_err_t set_config_service(void *config, const char *service_name, const char *service_key)
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{
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if (!config) {
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ESP_LOGE(TAG, "Cannot set null configuration");
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return ESP_ERR_INVALID_ARG;
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}
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if (!service_name) {
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ESP_LOGE(TAG, "Service name cannot be NULL");
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return ESP_ERR_INVALID_ARG;
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}
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protocomm_ble_config_t *ble_config = (protocomm_ble_config_t *) config;
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strlcpy(ble_config->device_name, service_name, sizeof(ble_config->device_name));
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/* If a custom service UUID has been provided, override the default one */
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if (custom_service_uuid) {
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memcpy(ble_config->service_uuid, custom_service_uuid, sizeof(ble_config->service_uuid));
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}
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/* Set manufacturer data if it is provided by app */
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if (custom_manufacturer_data) {
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size_t mfg_data_len = custom_manufacturer_data_len;
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/* Manufacturer Data Length + 2 Byte header + BLE Device name + 2 Byte
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* header <= 31 Bytes */
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if (mfg_data_len > (MAX_BLE_MANUFACTURER_DATA_LEN - sizeof(ble_config->device_name) - 2)) {
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ESP_LOGE(TAG, "Manufacturer data length is more than the max allowed size; expect truncated mfg_data ");
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/* XXX Does it even make any sense to set truncated mfg_data ? The
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* only reason to not return failure from here is provisioning
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* should continue as it is with error prints for mfg_data length */
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mfg_data_len = MAX_BLE_MANUFACTURER_DATA_LEN - sizeof(ble_config->device_name) - 2;
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}
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ble_config->manufacturer_data = custom_manufacturer_data;
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ble_config->manufacturer_data_len = mfg_data_len;
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} else {
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ble_config->manufacturer_data = NULL;
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ble_config->manufacturer_data_len = 0;
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}
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return ESP_OK;
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}
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static esp_err_t set_config_endpoint(void *config, const char *endpoint_name, uint16_t uuid)
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{
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if (!config) {
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ESP_LOGE(TAG, "Cannot set null configuration");
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return ESP_ERR_INVALID_ARG;
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}
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if (!endpoint_name) {
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ESP_LOGE(TAG, "EP name cannot be null");
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return ESP_ERR_INVALID_ARG;
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}
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protocomm_ble_config_t *ble_config = (protocomm_ble_config_t *) config;
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char *copy_ep_name = strdup(endpoint_name);
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if (!copy_ep_name) {
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ESP_LOGE(TAG, "Error allocating memory for EP name");
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return ESP_ERR_NO_MEM;
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}
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protocomm_ble_name_uuid_t *lookup_table = (
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realloc(ble_config->nu_lookup, (ble_config->nu_lookup_count + 1) * sizeof(protocomm_ble_name_uuid_t)));
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if (!lookup_table) {
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ESP_LOGE(TAG, "Error allocating memory for EP-UUID lookup table");
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return ESP_ERR_NO_MEM;
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}
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lookup_table[ble_config->nu_lookup_count].name = copy_ep_name;
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lookup_table[ble_config->nu_lookup_count].uuid = uuid;
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ble_config->nu_lookup = lookup_table;
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ble_config->nu_lookup_count += 1;
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return ESP_OK;
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}
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/* Used when both BT and BLE are not needed by application */
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void wifi_prov_scheme_ble_event_cb_free_btdm(void *user_data, wifi_prov_cb_event_t event, void *event_data)
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{
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esp_err_t err;
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switch (event) {
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case WIFI_PROV_INIT:
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/* Release BT memory, as we need only BLE */
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err = esp_bt_mem_release(ESP_BT_MODE_CLASSIC_BT);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "bt_mem_release of classic BT failed %d", err);
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} else {
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ESP_LOGI(TAG, "BT memory released");
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}
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break;
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case WIFI_PROV_DEINIT:
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#ifndef CONFIG_WIFI_PROV_KEEP_BLE_ON_AFTER_PROV
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/* Release memory used by BLE and Bluedroid host stack */
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err = esp_bt_mem_release(ESP_BT_MODE_BTDM);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "bt_mem_release of BTDM failed %d", err);
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} else {
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ESP_LOGI(TAG, "BTDM memory released");
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}
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#endif
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break;
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default:
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break;
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}
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}
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/* Used when BT is not needed by application */
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void wifi_prov_scheme_ble_event_cb_free_bt(void *user_data, wifi_prov_cb_event_t event, void *event_data)
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{
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esp_err_t err;
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switch (event) {
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case WIFI_PROV_INIT:
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/* Release BT memory, as we need only BLE */
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err = esp_bt_mem_release(ESP_BT_MODE_CLASSIC_BT);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "bt_mem_release of classic BT failed %d", err);
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} else {
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ESP_LOGI(TAG, "BT memory released");
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}
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break;
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default:
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break;
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}
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}
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/* Used when BLE is not needed by application */
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void wifi_prov_scheme_ble_event_cb_free_ble(void *user_data, wifi_prov_cb_event_t event, void *event_data)
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{
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esp_err_t err;
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switch (event) {
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case WIFI_PROV_DEINIT:
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#ifndef CONFIG_WIFI_PROV_KEEP_BLE_ON_AFTER_PROV
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/* Release memory used by BLE stack */
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err = esp_bt_mem_release(ESP_BT_MODE_BLE);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "bt_mem_release of BLE failed %d", err);
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} else {
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ESP_LOGI(TAG, "BLE memory released");
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}
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#endif
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break;
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default:
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break;
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}
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}
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const wifi_prov_scheme_t wifi_prov_scheme_ble = {
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.prov_start = prov_start,
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.prov_stop = protocomm_ble_stop,
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.new_config = new_config,
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.delete_config = delete_config,
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.set_config_service = set_config_service,
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.set_config_endpoint = set_config_endpoint,
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.wifi_mode = WIFI_MODE_STA
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};
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