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mesh_bearer_adapt.c
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mesh_bearer_adapt.c
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/*
* SPDX-FileCopyrightText: 2017 Nordic Semiconductor ASA
* SPDX-FileCopyrightText: 2015-2016 Intel Corporation
* SPDX-FileContributor: 2018-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <errno.h>
#include "bta/bta_api.h"
#include "bta/bta_gatt_api.h"
#include "bta/bta_gatt_common.h"
#include "bta_gattc_int.h"
#include "stack/btm_ble_api.h"
#include "p_256_ecc_pp.h"
#include "osi/future.h"
#include "device/controller.h"
#include "mbedtls/aes.h"
#include <tinycrypt/aes.h>
#include <tinycrypt/constants.h>
#include "mesh_hci.h"
#include "mesh_bearer_adapt.h"
#include "mesh_common.h"
#include "provisioner_prov.h"
struct bt_mesh_dev bt_mesh_dev;
#define BLE_MESH_BTM_CHECK_STATUS(func) do { \
tBTM_STATUS __status = (func); \
if ((__status != BTM_SUCCESS) && (__status != BTM_CMD_STARTED)) { \
BT_ERR("%s, Invalid status %d", __func__, __status); \
return -1; \
} \
} while(0);
#define BLE_MESH_GATT_GET_CONN_ID(conn_id) (((uint16_t)(conn_id)) >> 8)
#define BLE_MESH_GATT_CREATE_CONN_ID(gatt_if, conn_id) ((uint16_t)((((uint8_t)(conn_id)) << 8) | ((uint8_t)(gatt_if))))
/* We don't need to manage the BLE_MESH_DEV_ADVERTISING flags in the version of Bluedroid,
* it will manage it in the BTM layer.
*/
#define BLE_MESH_DEV 0
/* P-256 Variables */
static uint8_t bt_mesh_public_key[64];
static BT_OCTET32 bt_mesh_private_key;
/* Scan related functions */
static bt_mesh_scan_cb_t *bt_mesh_scan_dev_found_cb;
static void bt_mesh_scan_result_callback(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data);
#if (CONFIG_BLE_MESH_NODE && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_SERVER
/* Using UUID with a fixed pattern 0x96 for BLE Mesh GATT Proxy Server */
#define BLE_MESH_GATTS_APP_UUID_BYTE 0x96
/* the gatt database list to save the attribute table */
static sys_slist_t bt_mesh_gatts_db;
/* Static Variables */
static struct bt_mesh_conn bt_mesh_gatts_conn[BLE_MESH_MAX_CONN];
static struct bt_mesh_conn_cb *bt_mesh_gatts_conn_cb;
static tBTA_GATTS_IF bt_mesh_gatts_if;
static BD_ADDR bt_mesh_gatts_addr;
static uint16_t svc_handle, char_handle;
static future_t *gatts_future_mesh;
/* Static Functions */
static struct bt_mesh_gatt_attr *bt_mesh_gatts_find_attr_by_handle(uint16_t handle);
#endif
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT
/* Using UUID with a fixed pattern 0x97 for BLE Mesh GATT Proxy Client */
#define BLE_MESH_GATTC_APP_UUID_BYTE 0x97
static struct gattc_prov_info {
/* Service to be found depends on the type of adv pkt received */
struct bt_mesh_conn conn;
bt_mesh_addr_t addr;
uint16_t service_uuid;
uint16_t mtu;
bool wr_desc_done; /* Indicate if write char descriptor event is received */
uint16_t start_handle; /* Service attribute start handle */
uint16_t end_handle; /* Service attribute end handle */
uint16_t data_in_handle; /* Data In Characteristic attribute handle */
uint16_t data_out_handle; /* Data Out Characteristic attribute handle */
uint16_t ccc_handle; /* Data Out Characteristic CCC attribute handle */
} bt_mesh_gattc_info[BLE_MESH_MAX_CONN];
static struct bt_mesh_prov_conn_cb *bt_mesh_gattc_conn_cb;
static tBTA_GATTC_IF bt_mesh_gattc_if;
#endif
int bt_mesh_host_init(void)
{
return 0;
}
int bt_mesh_host_deinit(void)
{
return 0;
}
void bt_mesh_hci_init(void)
{
const uint8_t *features = controller_get_interface()->get_features_ble()->as_array;
if (features != NULL) {
memcpy(bt_mesh_dev.features[0], features, 8);
memcpy(bt_mesh_dev.le.features, features, 8);
}
/**
* Currently 20ms non-connectable adv interval is supported, and we need to add
* a flag to indicate this support.
*/
#ifdef CONFIG_BLE_MESH_HCI_5_0
bt_mesh_dev.hci_version = BLE_MESH_HCI_VERSION_5_0;
#else
bt_mesh_dev.hci_version = controller_get_interface()->get_bt_version()->hci_version;
#endif
bt_mesh_dev.lmp_version = controller_get_interface()->get_bt_version()->lmp_version;
bt_mesh_dev.hci_revision = controller_get_interface()->get_bt_version()->hci_revision;
bt_mesh_dev.lmp_subversion = controller_get_interface()->get_bt_version()->lmp_subversion;
bt_mesh_dev.manufacturer = controller_get_interface()->get_bt_version()->manufacturer;
const uint8_t *p = controller_get_interface()->get_ble_supported_states();
uint64_t states_fh = 0, states_sh = 0;
STREAM_TO_UINT32(states_fh, p);
STREAM_TO_UINT32(states_sh, p);
bt_mesh_dev.le.states = (states_sh << 32) | states_fh;
}
static void bt_mesh_scan_results_change_2_bta(tBTM_INQ_RESULTS *p_inq, uint8_t *p_eir,
tBTA_DM_SEARCH_CBACK *p_scan_cback)
{
tBTM_INQ_INFO *p_inq_info = NULL;
tBTA_DM_SEARCH result = {0};
bdcpy(result.inq_res.bd_addr, p_inq->remote_bd_addr);
result.inq_res.rssi = p_inq->rssi;
result.inq_res.ble_addr_type = p_inq->ble_addr_type;
result.inq_res.inq_result_type = p_inq->inq_result_type;
result.inq_res.device_type = p_inq->device_type;
result.inq_res.flag = p_inq->flag;
result.inq_res.adv_data_len = p_inq->adv_data_len;
result.inq_res.scan_rsp_len = p_inq->scan_rsp_len;
memcpy(result.inq_res.dev_class, p_inq->dev_class, sizeof(DEV_CLASS));
result.inq_res.ble_evt_type = p_inq->ble_evt_type;
/* application will parse EIR to find out remote device name */
result.inq_res.p_eir = p_eir;
if ((p_inq_info = BTM_InqDbRead(p_inq->remote_bd_addr)) != NULL) {
/* initialize remt_name_not_required to FALSE so that we get the name by default */
result.inq_res.remt_name_not_required = FALSE;
}
if (p_scan_cback) {
p_scan_cback(BTA_DM_INQ_RES_EVT, &result);
}
if (p_inq_info) {
/* application indicates if it knows the remote name, inside the callback
copy that to the inquiry data base*/
if (result.inq_res.remt_name_not_required) {
p_inq_info->appl_knows_rem_name = TRUE;
}
}
}
static void bt_mesh_scan_results_cb(tBTM_INQ_RESULTS *p_inq, uint8_t *p_eir)
{
bt_mesh_scan_results_change_2_bta(p_inq, p_eir, bt_mesh_scan_result_callback);
}
static bool valid_adv_param(const struct bt_mesh_adv_param *param)
{
if (!(param->options & BLE_MESH_ADV_OPT_CONNECTABLE)) {
#if BLE_MESH_DEV
if (bt_mesh_dev.hci_version < BLE_MESH_HCI_VERSION_5_0 &&
param->interval_min < 0x00a0) {
return false;
}
#endif
}
if (param->interval_min > param->interval_max ||
param->interval_min < 0x0020 || param->interval_max > 0x4000) {
return false;
}
return true;
}
static int set_adv_data(uint16_t hci_op, const struct bt_mesh_adv_data *ad, size_t ad_len)
{
struct bt_mesh_hci_cp_set_adv_data param = {0};
int i;
if (ad == NULL || ad_len == 0) {
return 0;
}
for (i = 0; i < ad_len; i++) {
/* Check if ad fit in the remaining buffer */
if (param.len + ad[i].data_len + 2 > 31) {
return -EINVAL;
}
param.data[param.len++] = ad[i].data_len + 1;
param.data[param.len++] = ad[i].type;
memcpy(¶m.data[param.len], ad[i].data, ad[i].data_len);
param.len += ad[i].data_len;
}
/* Set adv data and scan rsp data. */
if (hci_op == BLE_MESH_HCI_OP_SET_ADV_DATA) {
BLE_MESH_BTM_CHECK_STATUS(BTM_BleWriteAdvDataRaw(param.data, param.len));
} else if (hci_op == BLE_MESH_HCI_OP_SET_SCAN_RSP_DATA) {
BLE_MESH_BTM_CHECK_STATUS(BTM_BleWriteScanRspRaw(param.data, param.len));
}
return 0;
}
static void start_adv_completed_cb(uint8_t status)
{
#if BLE_MESH_DEV
if (!status) {
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING);
}
#endif
}
static bool valid_scan_param(const struct bt_mesh_scan_param *param)
{
if (param->type != BLE_MESH_SCAN_PASSIVE &&
param->type != BLE_MESH_SCAN_ACTIVE) {
return false;
}
if (param->filter_dup != BLE_MESH_SCAN_FILTER_DUP_DISABLE &&
param->filter_dup != BLE_MESH_SCAN_FILTER_DUP_ENABLE) {
return false;
}
if (param->interval < 0x0004 || param->interval > 0x4000) {
return false;
}
if (param->window < 0x0004 || param->window > 0x4000) {
return false;
}
if (param->window > param->interval) {
return false;
}
return true;
}
static int start_le_scan(uint8_t scan_type, uint16_t interval, uint16_t window,
uint8_t filter_dup, uint8_t scan_fil_policy)
{
UINT8 addr_type_own = BLE_MESH_ADDR_PUBLIC; /* Currently only support Public Address */
tGATT_IF client_if = 0xFF; /* Default GATT interface id */
BLE_MESH_BTM_CHECK_STATUS(
BTM_BleSetScanFilterParams(client_if, interval, window, scan_type, addr_type_own,
filter_dup, scan_fil_policy, NULL));
/* BLE Mesh scan permanently, so no duration of scan here */
BLE_MESH_BTM_CHECK_STATUS(BTM_BleScan(true, 0, bt_mesh_scan_results_cb, NULL, NULL));
#if BLE_MESH_DEV
if (scan_type == BLE_MESH_SCAN_ACTIVE) {
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ACTIVE_SCAN);
} else {
bt_mesh_atomic_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ACTIVE_SCAN);
}
#endif
return 0;
}
static void bt_mesh_scan_result_callback(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data)
{
struct net_buf_simple buf = {0};
bt_mesh_addr_t addr = {0};
BT_DBG("%s, event %d", __func__, event);
if (event == BTA_DM_INQ_RES_EVT) {
/* TODO: How to process scan response here? PS: p_data->inq_res.scan_rsp_len */
addr.type = p_data->inq_res.ble_addr_type;
memcpy(addr.val, p_data->inq_res.bd_addr, BLE_MESH_ADDR_LEN);
net_buf_simple_init_with_data(&buf, p_data->inq_res.p_eir, p_data->inq_res.adv_data_len);
if (bt_mesh_scan_dev_found_cb) {
bt_mesh_scan_dev_found_cb(&addr, p_data->inq_res.rssi, p_data->inq_res.ble_evt_type, &buf);
}
} else if (event == BTA_DM_INQ_CMPL_EVT) {
BT_INFO("Scan completed, number of scan response %d", p_data->inq_cmpl.num_resps);
} else {
BT_WARN("Unexpected scan result event %d", event);
}
}
/* APIs functions */
int bt_le_adv_start(const struct bt_mesh_adv_param *param,
const struct bt_mesh_adv_data *ad, size_t ad_len,
const struct bt_mesh_adv_data *sd, size_t sd_len)
{
tBTA_START_ADV_CMPL_CBACK *p_start_adv_cb = NULL;
tBTM_BLE_ADV_CHNL_MAP channel_map = 0U;
tBLE_ADDR_TYPE addr_type_own = 0U;
tBLE_BD_ADDR p_dir_bda = {0};
tBTM_BLE_AFP adv_fil_pol = 0U;
uint16_t interval = 0U;
uint8_t adv_type = 0U;
int err = 0;
#if BLE_MESH_DEV
if (bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING)) {
return -EALREADY;
}
#endif
if (!valid_adv_param(param)) {
BT_ERR("Invalid adv parameters");
return -EINVAL;
}
err = set_adv_data(BLE_MESH_HCI_OP_SET_ADV_DATA, ad, ad_len);
if (err) {
BT_ERR("Failed to set adv data");
return err;
}
/*
* We need to set SCAN_RSP when enabling advertising type that allows
* for Scan Requests.
*
* If sd was not provided but we enable connectable undirected
* advertising sd needs to be cleared from values set by previous calls.
* Clearing sd is done by calling set_adv_data() with NULL data and zero len.
* So following condition check is unusual but correct.
*/
if (sd && (param->options & BLE_MESH_ADV_OPT_CONNECTABLE)) {
err = set_adv_data(BLE_MESH_HCI_OP_SET_SCAN_RSP_DATA, sd, sd_len);
if (err) {
BT_ERR("Failed to set scan rsp data");
return err;
}
}
if (param->options & BLE_MESH_ADV_OPT_CONNECTABLE) {
adv_type = BLE_MESH_ADV_IND;
} else if (sd != NULL) {
adv_type = BLE_MESH_ADV_SCAN_IND;
} else {
adv_type = BLE_MESH_ADV_NONCONN_IND;
}
addr_type_own = BLE_MESH_ADDR_PUBLIC; /* Currently only support Public Address */
channel_map = BLE_MESH_ADV_CHNL_37 | BLE_MESH_ADV_CHNL_38 | BLE_MESH_ADV_CHNL_39;
adv_fil_pol = BLE_MESH_AP_SCAN_CONN_ALL;
p_start_adv_cb = start_adv_completed_cb;
interval = param->interval_min;
#if CONFIG_BLE_MESH_RANDOM_ADV_INTERVAL
/* If non-connectable mesh packets are transmitted with an adv interval
* not smaller than 10ms, then we will use a random adv interval between
* [interval / 2, interval] for them.
*/
if (adv_type == BLE_MESH_ADV_NONCONN_IND && interval >= 16) {
interval >>= 1;
interval += (bt_mesh_get_rand() % (interval + 1));
BT_INFO("%u->%u", param->interval_min, interval);
}
#endif
/* Check if we can start adv using BTM_BleSetAdvParamsStartAdvCheck */
BLE_MESH_BTM_CHECK_STATUS(
BTM_BleSetAdvParamsAll(interval, interval, adv_type,
addr_type_own, &p_dir_bda,
channel_map, adv_fil_pol, p_start_adv_cb));
BLE_MESH_BTM_CHECK_STATUS(BTM_BleStartAdv());
#if BLE_MESH_DEV
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING);
if (!(param->options & BLE_MESH_ADV_OPT_ONE_TIME)) {
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_KEEP_ADVERTISING);
}
#endif
return 0;
}
#if CONFIG_BLE_MESH_SUPPORT_BLE_ADV
int bt_mesh_ble_adv_start(const struct bt_mesh_ble_adv_param *param,
const struct bt_mesh_ble_adv_data *data)
{
struct bt_mesh_hci_cp_set_adv_data set = {0};
tBTM_BLE_ADV_CHNL_MAP channel_map = 0U;
tBTM_BLE_AFP adv_fil_pol = 0U;
tBLE_BD_ADDR p_dir_bda = {0};
if (data && param->adv_type != BLE_MESH_ADV_DIRECT_IND &&
param->adv_type != BLE_MESH_ADV_DIRECT_IND_LOW_DUTY) {
if (data->adv_data_len) {
set.len = data->adv_data_len;
memcpy(set.data, data->adv_data, data->adv_data_len);
BLE_MESH_BTM_CHECK_STATUS(BTM_BleWriteAdvDataRaw(set.data, set.len));
}
if (data->scan_rsp_data_len && param->adv_type != BLE_MESH_ADV_NONCONN_IND) {
set.len = data->scan_rsp_data_len;
memcpy(set.data, data->scan_rsp_data, data->scan_rsp_data_len);
BLE_MESH_BTM_CHECK_STATUS(BTM_BleWriteScanRspRaw(set.data, set.len));
}
}
channel_map = BLE_MESH_ADV_CHNL_37 | BLE_MESH_ADV_CHNL_38 | BLE_MESH_ADV_CHNL_39;
adv_fil_pol = BLE_MESH_AP_SCAN_CONN_ALL;
if (param->own_addr_type == BLE_MESH_ADDR_PUBLIC_ID ||
param->own_addr_type == BLE_MESH_ADDR_RANDOM_ID ||
param->adv_type == BLE_MESH_ADV_DIRECT_IND ||
param->adv_type == BLE_MESH_ADV_DIRECT_IND_LOW_DUTY) {
p_dir_bda.type = param->peer_addr_type;
memcpy(p_dir_bda.bda, param->peer_addr, BLE_MESH_ADDR_LEN);
}
/* Check if we can start adv using BTM_BleSetAdvParamsStartAdvCheck */
BLE_MESH_BTM_CHECK_STATUS(
BTM_BleSetAdvParamsAll(param->interval, param->interval, param->adv_type,
param->own_addr_type, &p_dir_bda,
channel_map, adv_fil_pol, NULL));
BLE_MESH_BTM_CHECK_STATUS(BTM_BleStartAdv());
return 0;
}
#endif /* CONFIG_BLE_MESH_SUPPORT_BLE_ADV */
int bt_le_adv_stop(void)
{
#if BLE_MESH_DEV
bt_mesh_atomic_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_KEEP_ADVERTISING);
if (!bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING)) {
return 0;
}
#endif
BLE_MESH_BTM_CHECK_STATUS(BTM_BleBroadcast(false, NULL));
#if BLE_MESH_DEV
bt_mesh_atomic_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING);
#endif
return 0;
}
int bt_le_scan_start(const struct bt_mesh_scan_param *param, bt_mesh_scan_cb_t cb)
{
int err = 0;
if (bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING)) {
BT_INFO("Scan is already started");
return -EALREADY;
}
if (!valid_scan_param(param)) {
return -EINVAL;
}
#if BLE_MESH_DEV
if (param->filter_dup) {
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCAN_FILTER_DUP);
} else {
bt_mesh_atomic_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCAN_FILTER_DUP);
}
#endif
err = start_le_scan(param->type, param->interval, param->window,
param->filter_dup, param->scan_fil_policy);
if (err) {
return err;
}
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING);
bt_mesh_scan_dev_found_cb = cb;
return 0;
}
int bt_le_scan_stop(void)
{
if (!bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING)) {
BT_INFO("Scan is already stopped");
return -EALREADY;
}
BLE_MESH_BTM_CHECK_STATUS(BTM_BleScan(false, 0, NULL, NULL, NULL));
bt_mesh_atomic_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING);
bt_mesh_scan_dev_found_cb = NULL;
return 0;
}
#if CONFIG_BLE_MESH_TEST_USE_WHITE_LIST
int bt_le_update_white_list(struct bt_mesh_white_list *wl)
{
if (wl == NULL) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
if (BTM_BleUpdateAdvWhitelist(wl->add_remove, wl->remote_bda,
wl->addr_type, (tBTM_UPDATE_WHITELIST_CBACK *)wl->update_wl_comp_cb) == false) {
return -EIO;
}
return 0;
}
#endif
#if (CONFIG_BLE_MESH_NODE && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_SERVER
static void bt_mesh_bta_gatts_cb(tBTA_GATTS_EVT event, tBTA_GATTS *p_data)
{
switch (event) {
case BTA_GATTS_REG_EVT:
if (p_data->reg_oper.status == BTA_GATT_OK) {
bt_mesh_gatts_if = p_data->reg_oper.server_if;
future_ready(gatts_future_mesh, FUTURE_SUCCESS);
} else {
future_ready(gatts_future_mesh, FUTURE_FAIL);
}
break;
case BTA_GATTS_READ_EVT: {
struct bt_mesh_gatt_attr *attr = bt_mesh_gatts_find_attr_by_handle(p_data->req_data.p_data->read_req.handle);
uint8_t index = BLE_MESH_GATT_GET_CONN_ID(p_data->req_data.conn_id);
tBTA_GATTS_RSP rsp = {0};
uint8_t buf[100] = {0};
uint16_t len = 0;
BT_DBG("gatts read, handle %d", p_data->req_data.p_data->read_req.handle);
if (attr != NULL && attr->read != NULL) {
if ((len = attr->read(&bt_mesh_gatts_conn[index], attr, buf, 100,
p_data->req_data.p_data->read_req.offset)) > 0) {
rsp.attr_value.handle = p_data->req_data.p_data->read_req.handle;
rsp.attr_value.len = len;
memcpy(&rsp.attr_value.value[0], buf, len);
BTA_GATTS_SendRsp(p_data->req_data.conn_id, p_data->req_data.trans_id,
p_data->req_data.status, &rsp);
BT_DBG("Send gatts read rsp, handle %d", attr->handle);
} else {
BT_WARN("Mesh gatts read failed");
}
}
break;
}
case BTA_GATTS_WRITE_EVT: {
struct bt_mesh_gatt_attr *attr = bt_mesh_gatts_find_attr_by_handle(p_data->req_data.p_data->write_req.handle);
uint8_t index = BLE_MESH_GATT_GET_CONN_ID(p_data->req_data.conn_id);
uint16_t len = 0;
BT_DBG("gatts write, handle %d, len %d, data %s", p_data->req_data.p_data->write_req.handle,
p_data->req_data.p_data->write_req.len,
bt_hex(p_data->req_data.p_data->write_req.value, p_data->req_data.p_data->write_req.len));
if (attr != NULL && attr->write != NULL) {
if ((len = attr->write(&bt_mesh_gatts_conn[index], attr,
p_data->req_data.p_data->write_req.value,
p_data->req_data.p_data->write_req.len,
p_data->req_data.p_data->write_req.offset, 0)) > 0) {
if (p_data->req_data.p_data->write_req.need_rsp) {
BTA_GATTS_SendRsp(p_data->req_data.conn_id, p_data->req_data.trans_id,
p_data->req_data.status, NULL);
BT_DBG("Send gatts write rsp, handle %d", attr->handle);
}
}
}
break;
}
case BTA_GATTS_EXEC_WRITE_EVT:
break;
case BTA_GATTS_MTU_EVT:
break;
case BTA_GATTS_CONF_EVT:
break;
case BTA_GATTS_CREATE_EVT:
svc_handle = p_data->create.service_id;
BT_DBG("svc_handle %d, gatts_future_mesh %p", svc_handle, gatts_future_mesh);
if (gatts_future_mesh != NULL) {
future_ready(gatts_future_mesh, FUTURE_SUCCESS);
}
break;
case BTA_GATTS_ADD_INCL_SRVC_EVT:
svc_handle = p_data->add_result.attr_id;
if (gatts_future_mesh != NULL) {
future_ready(gatts_future_mesh, FUTURE_SUCCESS);
}
break;
case BTA_GATTS_ADD_CHAR_EVT:
char_handle = p_data->add_result.attr_id;
if (gatts_future_mesh != NULL) {
future_ready(gatts_future_mesh, FUTURE_SUCCESS);
}
break;
case BTA_GATTS_ADD_CHAR_DESCR_EVT:
char_handle = p_data->add_result.attr_id;
if (gatts_future_mesh != NULL) {
future_ready(gatts_future_mesh, FUTURE_SUCCESS);
}
break;
case BTA_GATTS_DELELTE_EVT:
break;
case BTA_GATTS_START_EVT:
break;
case BTA_GATTS_STOP_EVT:
break;
case BTA_GATTS_CONNECT_EVT:
#if BLE_MESH_DEV
/* When connection is created, advertising will be stopped automatically. */
bt_mesh_atomic_test_and_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING);
#endif
if (bt_mesh_gatts_conn_cb != NULL && bt_mesh_gatts_conn_cb->connected != NULL) {
uint8_t index = BLE_MESH_GATT_GET_CONN_ID(p_data->conn.conn_id);
if (index < BLE_MESH_MAX_CONN) {
bt_mesh_gatts_conn[index].handle = BLE_MESH_GATT_GET_CONN_ID(p_data->conn.conn_id);
(bt_mesh_gatts_conn_cb->connected)(&bt_mesh_gatts_conn[index], 0);
}
memcpy(bt_mesh_gatts_addr, p_data->conn.remote_bda, BLE_MESH_ADDR_LEN);
/* This is for EspBleMesh Android app. When it tries to connect with the
* device at the first time and it fails due to some reason. And after
* the second connection, the device needs to send GATT service change
* indication to the phone manually to notify it discovering service again.
*/
BTA_GATTS_SendServiceChangeIndication(bt_mesh_gatts_if, bt_mesh_gatts_addr);
}
break;
case BTA_GATTS_DISCONNECT_EVT:
#if BLE_MESH_DEV
bt_mesh_atomic_test_and_clear_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING);
#endif
if (bt_mesh_gatts_conn_cb != NULL && bt_mesh_gatts_conn_cb->disconnected != NULL) {
uint8_t index = BLE_MESH_GATT_GET_CONN_ID(p_data->conn.conn_id);
if (index < BLE_MESH_MAX_CONN) {
bt_mesh_gatts_conn[index].handle = BLE_MESH_GATT_GET_CONN_ID(p_data->conn.conn_id);
(bt_mesh_gatts_conn_cb->disconnected)(&bt_mesh_gatts_conn[index], p_data->conn.reason);
}
memset(bt_mesh_gatts_addr, 0x0, BLE_MESH_ADDR_LEN);
}
break;
case BTA_GATTS_CLOSE_EVT:
break;
default:
break;
}
}
void bt_mesh_gatts_conn_cb_register(struct bt_mesh_conn_cb *cb)
{
bt_mesh_gatts_conn_cb = cb;
}
void bt_mesh_gatts_conn_cb_deregister(void)
{
bt_mesh_gatts_conn_cb = NULL;
}
static struct bt_mesh_gatt_attr *bt_mesh_gatts_find_attr_by_handle(uint16_t handle)
{
struct bt_mesh_gatt_service *svc = NULL;
struct bt_mesh_gatt_attr *attr = NULL;
SYS_SLIST_FOR_EACH_CONTAINER(&bt_mesh_gatts_db, svc, node) {
int i;
for (i = 0; i < svc->attr_count; i++) {
attr = &svc->attrs[i];
/* Check the attrs handle is equal to the handle or not */
if (attr->handle == handle) {
return attr;
}
}
}
return NULL;
}
static void bt_mesh_gatts_foreach_attr(uint16_t start_handle, uint16_t end_handle,
bt_mesh_gatt_attr_func_t func, void *user_data)
{
struct bt_mesh_gatt_service *svc = NULL;
SYS_SLIST_FOR_EACH_CONTAINER(&bt_mesh_gatts_db, svc, node) {
int i;
for (i = 0; i < svc->attr_count; i++) {
struct bt_mesh_gatt_attr *attr = &svc->attrs[i];
/* Check if attribute handle is within range */
if (attr->handle < start_handle ||
attr->handle > end_handle) {
continue;
}
if (func(attr, user_data) == BLE_MESH_GATT_ITER_STOP) {
return;
}
}
}
}
static uint8_t find_next(const struct bt_mesh_gatt_attr *attr, void *user_data)
{
struct bt_mesh_gatt_attr **next = user_data;
*next = (struct bt_mesh_gatt_attr *)attr;
return BLE_MESH_GATT_ITER_STOP;
}
static struct bt_mesh_gatt_attr *bt_mesh_gatts_attr_next(const struct bt_mesh_gatt_attr *attr)
{
struct bt_mesh_gatt_attr *next = NULL;
bt_mesh_gatts_foreach_attr(attr->handle + 1, attr->handle + 1, find_next, &next);
return next;
}
ssize_t bt_mesh_gatts_attr_read(struct bt_mesh_conn *conn,
const struct bt_mesh_gatt_attr *attr,
void *buf, uint16_t buf_len, uint16_t offset,
const void *value, uint16_t value_len)
{
uint16_t len = 0U;
if (offset > value_len) {
return BLE_MESH_GATT_ERR(BLE_MESH_ATT_ERR_INVALID_OFFSET);
}
len = MIN(buf_len, value_len - offset);
BT_DBG("handle 0x%04x offset %u length %u", attr->handle, offset, len);
memcpy(buf, value + offset, len);
return len;
}
struct gatts_incl {
uint16_t start_handle;
uint16_t end_handle;
uint16_t uuid16;
} __packed;
ssize_t bt_mesh_gatts_attr_read_included(struct bt_mesh_conn *conn,
const struct bt_mesh_gatt_attr *attr,
void *buf, uint16_t len, uint16_t offset)
{
struct bt_mesh_gatt_attr *incl = attr->user_data;
struct bt_mesh_uuid *uuid = incl->user_data;
struct gatts_incl pdu = {0};
uint8_t value_len = 0U;
/* First attr points to the start handle */
pdu.start_handle = sys_cpu_to_le16(incl->handle);
value_len = sizeof(pdu.start_handle) + sizeof(pdu.end_handle);
/*
* Core 4.2, Vol 3, Part G, 3.2,
* The Service UUID shall only be present when the UUID is a 16-bit Bluetooth UUID.
*/
if (uuid->type == BLE_MESH_UUID_TYPE_16) {
pdu.uuid16 = sys_cpu_to_le16(BLE_MESH_UUID_16(uuid)->val);
value_len += sizeof(pdu.uuid16);
}
return bt_mesh_gatts_attr_read(conn, attr, buf, len, offset, &pdu, value_len);
}
ssize_t bt_mesh_gatts_attr_read_service(struct bt_mesh_conn *conn,
const struct bt_mesh_gatt_attr *attr,
void *buf, uint16_t len, uint16_t offset)
{
struct bt_mesh_uuid *uuid = attr->user_data;
if (uuid->type == BLE_MESH_UUID_TYPE_16) {
uint16_t uuid16 = sys_cpu_to_le16(BLE_MESH_UUID_16(uuid)->val);
return bt_mesh_gatts_attr_read(conn, attr, buf, len, offset, &uuid16, 2);
}
return bt_mesh_gatts_attr_read(conn, attr, buf, len, offset,
BLE_MESH_UUID_128(uuid)->val, 16);
}
struct gatts_chrc {
uint8_t properties;
uint16_t value_handle;
union {
uint16_t uuid16;
uint8_t uuid[16];
};
} __packed;
ssize_t bt_mesh_gatts_attr_read_chrc(struct bt_mesh_conn *conn,
const struct bt_mesh_gatt_attr *attr,
void *buf, uint16_t len, uint16_t offset)
{
struct bt_mesh_gatt_char *chrc = attr->user_data;
const struct bt_mesh_gatt_attr *next = NULL;
struct gatts_chrc pdu = {0};
uint8_t value_len = 0U;
pdu.properties = chrc->properties;
/* BLUETOOTH SPECIFICATION Version 4.2 [Vol 3, Part G] page 534:
* 3.3.2 Characteristic Value Declaration
* The Characteristic Value declaration contains the value of the
* characteristic. It is the first Attribute after the characteristic
* declaration. All characteristic definitions shall have a
* Characteristic Value declaration.
*/
next = bt_mesh_gatts_attr_next(attr);
if (!next) {
BT_WARN("No value for characteristic, handle 0x%04x", attr->handle);
pdu.value_handle = 0x0000;
} else {
pdu.value_handle = sys_cpu_to_le16(next->handle);
}
value_len = sizeof(pdu.properties) + sizeof(pdu.value_handle);
if (chrc->uuid->type == BLE_MESH_UUID_TYPE_16) {
pdu.uuid16 = sys_cpu_to_le16(BLE_MESH_UUID_16(chrc->uuid)->val);
value_len += 2;
} else {
memcpy(pdu.uuid, BLE_MESH_UUID_128(chrc->uuid)->val, 16);
value_len += 16;
}
return bt_mesh_gatts_attr_read(conn, attr, buf, len, offset, &pdu, value_len);
}
static void bta_uuid_to_bt_mesh_uuid(tBT_UUID *bta_uuid, const struct bt_mesh_uuid *uuid)
{
assert(uuid != NULL && bta_uuid != NULL);
if (uuid->type == BLE_MESH_UUID_TYPE_16) {
bta_uuid->len = LEN_UUID_16;
bta_uuid->uu.uuid16 = BLE_MESH_UUID_16(uuid)->val;
} else if (uuid->type == BLE_MESH_UUID_TYPE_32) {
bta_uuid->len = LEN_UUID_32;
bta_uuid->uu.uuid32 = BLE_MESH_UUID_32(uuid)->val;
} else if (uuid->type == BLE_MESH_UUID_TYPE_128) {
bta_uuid->len = LEN_UUID_128;
memcpy(bta_uuid->uu.uuid128, BLE_MESH_UUID_128(uuid)->val, LEN_UUID_128);
} else {
BT_ERR("Invalid mesh uuid type %d", uuid->type);
}
return;
}
static int gatts_register(struct bt_mesh_gatt_service *svc)
{
struct bt_mesh_gatt_service *last = NULL;
uint16_t handle = 0U;
if (sys_slist_is_empty(&bt_mesh_gatts_db)) {
handle = 0;
goto populate;
}
last = SYS_SLIST_PEEK_TAIL_CONTAINER(&bt_mesh_gatts_db, last, node);
handle = last->attrs[last->attr_count - 1].handle;
BT_DBG("gatts register, handle %d", handle);
((void) handle);
populate:
sys_slist_append(&bt_mesh_gatts_db, &svc->node);
return 0;
}
static int gatts_deregister(struct bt_mesh_gatt_service *svc)
{
if (sys_slist_is_empty(&bt_mesh_gatts_db)) {
return 0;
}
sys_slist_find_and_remove(&bt_mesh_gatts_db, &svc->node);
return 0;
}
static tBTA_GATT_PERM bt_mesh_perm_to_bta_perm(uint8_t perm)
{
tBTA_GATT_PERM bta_perm = 0;
if ((perm & BLE_MESH_GATT_PERM_READ) == BLE_MESH_GATT_PERM_READ) {
bta_perm |= BTA_GATT_PERM_READ;
}
if ((perm & BLE_MESH_GATT_PERM_WRITE) == BLE_MESH_GATT_PERM_WRITE) {
bta_perm |= BTA_GATT_PERM_WRITE;
}
if ((perm & BLE_MESH_GATT_PERM_READ_ENCRYPT) == BLE_MESH_GATT_PERM_READ_ENCRYPT) {
bta_perm |= BTA_GATT_PERM_READ_ENCRYPTED;
}
if ((perm & BLE_MESH_GATT_PERM_WRITE_ENCRYPT) == BLE_MESH_GATT_PERM_WRITE_ENCRYPT) {
bta_perm |= BTA_GATT_PERM_WRITE_ENCRYPTED;
}
if ((perm & BLE_MESH_GATT_PERM_READ_AUTHEN) == BLE_MESH_GATT_PERM_READ_AUTHEN) {
bta_perm |= BTA_GATT_PERM_READ_ENC_MITM;
}
if ((perm & BLE_MESH_GATT_PERM_WRITE_AUTHEN) == BLE_MESH_GATT_PERM_WRITE_AUTHEN) {
bta_perm |= BTA_GATT_PERM_WRITE_ENC_MITM;
}
return bta_perm;
}
int bt_mesh_gatts_service_register(struct bt_mesh_gatt_service *svc)
{
tBT_UUID bta_uuid = {0};
assert(svc != NULL);
for (int i = 0; i < svc->attr_count; i++) {
if (svc->attrs[i].uuid->type == BLE_MESH_UUID_TYPE_16) {
switch (BLE_MESH_UUID_16(svc->attrs[i].uuid)->val) {
case BLE_MESH_UUID_GATT_PRIMARY_VAL: {
gatts_future_mesh = future_new();
bta_uuid_to_bt_mesh_uuid(&bta_uuid, (struct bt_mesh_uuid *)svc->attrs[i].user_data);
BTA_GATTS_CreateService(bt_mesh_gatts_if,
&bta_uuid, 0, svc->attr_count, true);
if (future_await(gatts_future_mesh) == FUTURE_FAIL) {
BT_ERR("Failed to add primary service");
return ESP_FAIL;
}
svc->attrs[i].handle = svc_handle;
BT_DBG("Add primary service, uuid 0x%04x, perm %d, handle %d",
bta_uuid.uu.uuid16, svc->attrs[i].perm, svc_handle);
break;
}
case BLE_MESH_UUID_GATT_SECONDARY_VAL: {
gatts_future_mesh = future_new();
bta_uuid_to_bt_mesh_uuid(&bta_uuid, (struct bt_mesh_uuid *)svc->attrs[i].user_data);
BTA_GATTS_CreateService(bt_mesh_gatts_if,
&bta_uuid, 0, svc->attr_count, false);
if (future_await(gatts_future_mesh) == FUTURE_FAIL) {
BT_ERR("Failed to add secondary service");
return ESP_FAIL;
}
svc->attrs[i].handle = svc_handle;
BT_DBG("Add secondary service, uuid 0x%04x, perm %d, handle %d",
bta_uuid.uu.uuid16, svc->attrs[i].perm, svc_handle);
break;
}
case BLE_MESH_UUID_GATT_INCLUDE_VAL: {
break;
}
case BLE_MESH_UUID_GATT_CHRC_VAL: {
gatts_future_mesh = future_new();
struct bt_mesh_gatt_char *gatts_chrc = (struct bt_mesh_gatt_char *)svc->attrs[i].user_data;
bta_uuid_to_bt_mesh_uuid(&bta_uuid, gatts_chrc->uuid);
BTA_GATTS_AddCharacteristic(svc_handle, &bta_uuid, bt_mesh_perm_to_bta_perm(svc->attrs[i + 1].perm), gatts_chrc->properties, NULL, NULL);
if (future_await(gatts_future_mesh) == FUTURE_FAIL) {
BT_ERR("Failed to add characteristic");
return ESP_FAIL;
}
/* All the characteristic should have two handles: the declaration handle and the value handle */
svc->attrs[i].handle = char_handle - 1;
svc->attrs[i + 1].handle = char_handle;
BT_DBG("Add characteristic, uuid 0x%04x, handle %d, perm %d, properties %d",
BLE_MESH_UUID_16(gatts_chrc->uuid)->val, char_handle, svc->attrs[i + 1].perm, gatts_chrc->properties);
break;
}
case BLE_MESH_UUID_GATT_CEP_VAL:
case BLE_MESH_UUID_GATT_CUD_VAL:
case BLE_MESH_UUID_GATT_CCC_VAL:
case BLE_MESH_UUID_GATT_SCC_VAL:
case BLE_MESH_UUID_GATT_CPF_VAL:
case BLE_MESH_UUID_VALID_RANGE_VAL:
case BLE_MESH_UUID_HIDS_EXT_REPORT_VAL: