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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 <errno.h>
#include "btc/btc_task.h"
#include "osi/alarm.h"
#include "mbedtls/aes.h"
#include "mbedtls/ecp.h"
#include "host/ble_hs.h"
#include "host/ble_uuid.h"
#include "host/ble_att.h"
#include "host/ble_gatt.h"
#include "services/gap/ble_svc_gap.h"
#include "services/gatt/ble_svc_gatt.h"
#include <tinycrypt/aes.h>
#include <tinycrypt/constants.h>
#include "mesh_hci.h"
#include "mesh_common.h"
#include "provisioner_prov.h"
/** @def BT_UUID_MESH_PROV
* @brief Mesh Provisioning Service
*/
#define BT_UUID_MESH_PROV_VAL 0x1827
/** @def BT_UUID_MESH_PROXY
* @brief Mesh Proxy Service
*/
#define BT_UUID_MESH_PROXY_VAL 0x1828
/** @def BT_UUID_GATT_CCC
* @brief GATT Client Characteristic Configuration
*/
#define BT_UUID_GATT_CCC_VAL 0x2902
/** @def BT_UUID_MESH_PROV_DATA_IN
* @brief Mesh Provisioning Data In
*/
#define BT_UUID_MESH_PROV_DATA_IN_VAL 0x2adb
/** @def BT_UUID_MESH_PROV_DATA_OUT
* @brief Mesh Provisioning Data Out
*/
#define BT_UUID_MESH_PROV_DATA_OUT_VAL 0x2adc
/** @def BT_UUID_MESH_PROXY_DATA_IN
* @brief Mesh Proxy Data In
*/
#define BT_UUID_MESH_PROXY_DATA_IN_VAL 0x2add
/** @def BT_UUID_MESH_PROXY_DATA_OUT
* @brief Mesh Proxy Data Out
*/
#define BT_UUID_MESH_PROXY_DATA_OUT_VAL 0x2ade
#define BLE_MESH_GATT_GET_CONN_ID(conn_id) ((uint16_t)(conn_id))
#define BLE_MESH_GATT_CREATE_CONN_ID(conn_id) ((uint16_t)(conn_id))
static uint16_t proxy_svc_start_handle, prov_svc_start_handle;
struct bt_mesh_dev bt_mesh_dev;
/* P-256 Variables */
static uint8_t bt_mesh_public_key[64];
static uint8_t bt_mesh_private_key[32];
/* Scan related functions */
static bt_mesh_scan_cb_t *bt_mesh_scan_dev_found_cb;
#if defined(CONFIG_BLE_MESH_NODE) && CONFIG_BLE_MESH_NODE
/* 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 uint8_t bt_mesh_gatts_addr[6];
#endif /* defined(CONFIG_BLE_MESH_NODE) && CONFIG_BLE_MESH_NODE */
static bool g_host_init = false;
int bt_mesh_host_init(void)
{
int rc;
if (g_host_init == true) {
BT_WARN("Already initialized host for mesh!");
return -EALREADY;
}
rc = btc_init();
if (rc != 0) {
return -1;
}
rc = osi_alarm_create_mux();
if (rc != 0) {
return -1;
}
osi_alarm_init();
g_host_init = true;
return 0;
}
int bt_mesh_host_deinit(void)
{
int rc;
if (g_host_init == false) {
return -EALREADY;
}
osi_alarm_deinit();
rc = osi_alarm_delete_mux();
if (rc != 0) {
return -1;
}
btc_deinit();
g_host_init = false;
return 0;
}
uint8_t ble_hs_hci_get_hci_version(void);
void bt_mesh_hci_init(void)
{
/**
* 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 = ble_hs_hci_get_hci_version();
#endif
return;
}
static struct ble_gap_disc_params scan_param;
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT
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 int ble_on_subscribe(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr,
void *arg)
{
struct bt_mesh_conn *conn = NULL;
uint8_t value[2] = {0x01, 0x00};
int i = (int)arg, j, len;
MODLOG_DFLT(INFO, "Subscribe complete; status=%d conn_handle=%d "
"attr_handle=%d\n",
error->status, conn_handle, attr->handle);
for (j = i + 1; j < ARRAY_SIZE(bt_mesh_gattc_info); j++) {
if ((bt_mesh_gattc_info[j].conn.handle == conn_handle) && bt_mesh_gattc_info[j].ccc_handle) {
break;
}
}
if (j == ARRAY_SIZE(bt_mesh_gattc_info)) {
conn = &bt_mesh_gattc_info[i].conn;
if (bt_mesh_gattc_info[i].ccc_handle != attr->handle) {
BT_WARN("gattc ccc_handle not matched");
bt_mesh_gattc_disconnect(conn);
return 0;
}
if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROV_VAL) {
if (bt_mesh_gattc_conn_cb != NULL && bt_mesh_gattc_conn_cb->prov_write_descr != NULL) {
len = bt_mesh_gattc_conn_cb->prov_write_descr(&bt_mesh_gattc_info[i].addr, &bt_mesh_gattc_info[i].conn);
if (len < 0) {
BT_ERR("prov_write_descr failed");
bt_mesh_gattc_disconnect(conn);
return 0;
}
bt_mesh_gattc_info[i].wr_desc_done = true;
}
} else if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROXY_VAL) {
if (bt_mesh_gattc_conn_cb != NULL && bt_mesh_gattc_conn_cb->proxy_write_descr != NULL) {
len = bt_mesh_gattc_conn_cb->proxy_write_descr(&bt_mesh_gattc_info[i].addr, &bt_mesh_gattc_info[i].conn);
if (len < 0) {
BT_ERR("proxy_write_descr failed");
bt_mesh_gattc_disconnect(conn);
return 0;
}
bt_mesh_gattc_info[i].wr_desc_done = true;
}
}
return 0;
}
ble_gattc_write_flat(conn_handle, bt_mesh_gattc_info[i].ccc_handle, value, sizeof(value), ble_on_subscribe, (void *)j);
return 0;
}
static int dsc_disced(uint16_t conn_handle, const struct ble_gatt_error *error,
uint16_t chr_val_handle, const struct ble_gatt_dsc *dsc,
void *arg)
{
int rc = 0, j, i = (int)arg; /* char index */
uint8_t value[2] = {0x01, 0x00};
switch (error->status) {
case 0:
if (bt_mesh_gattc_info[i].ccc_handle == 0 && dsc &&
BLE_UUID16(&dsc->uuid)->value == BLE_MESH_UUID_GATT_CCC_VAL) {
bt_mesh_gattc_info[i].ccc_handle = dsc->handle;
}
break;
case BLE_HS_EDONE:
/* All descriptors in this characteristic discovered; start discovering
* descriptors in the next characteristic.
*/
for (j = i + 1; j < ARRAY_SIZE(bt_mesh_gattc_info); j++) {
if ((bt_mesh_gattc_info[j].conn.handle == conn_handle) && bt_mesh_gattc_info[j].data_out_handle) {
break;
}
}
if (j == ARRAY_SIZE(bt_mesh_gattc_info)) {
/* Register Notification for Mesh Provisioning/Proxy Data Out Characteristic */
for (j = 0; j < ARRAY_SIZE(bt_mesh_gattc_info); j++) {
if ((bt_mesh_gattc_info[j].conn.handle == conn_handle) && bt_mesh_gattc_info[j].ccc_handle) {
break;
}
}
if (j == ARRAY_SIZE(bt_mesh_gattc_info)) {
return 0;
}
ble_gattc_write_flat(conn_handle, bt_mesh_gattc_info[i].ccc_handle, value, sizeof(value), ble_on_subscribe, (void *)j);
} else {
ble_gattc_disc_all_dscs(conn_handle, bt_mesh_gattc_info[j].data_out_handle, 0xffff, dsc_disced, (void *)j);
}
rc = 0;
break;
default:
/* Error; abort discovery. */
rc = error->status;
break;
}
return rc;
}
static int chr_disced(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg)
{
int rc = 0, j;
uint16_t uuid16 = 0;
int i = (int)arg; /* service index */
struct bt_mesh_conn *conn = &bt_mesh_gattc_info[i].conn;
const ble_uuid_any_t *uuid = &chr->uuid;
if (chr) {
uuid16 = (uint16_t) BLE_UUID16(uuid)->value;
}
switch (error->status) {
case 0:
/* Get Mesh Provisioning/Proxy Data In/Out Characteristic */
if ((uuid16 == BLE_MESH_UUID_MESH_PROV_DATA_IN_VAL) || (uuid16 == BLE_MESH_UUID_MESH_PROXY_DATA_IN_VAL)) {
if (!(chr->properties & BLE_MESH_GATT_CHRC_WRITE_WITHOUT_RESP)) {
bt_mesh_gattc_disconnect(conn);
BT_ERR("Write without response is not set for Data In characteristic");
return 0;
}
bt_mesh_gattc_info[i].data_in_handle = chr->val_handle;
} else if ((uuid16 == BLE_MESH_UUID_MESH_PROV_DATA_OUT_VAL) || (uuid16 == BLE_MESH_UUID_MESH_PROXY_DATA_OUT_VAL)) {
if (!(chr->properties & BLE_MESH_GATT_CHRC_NOTIFY)) {
bt_mesh_gattc_disconnect(conn);
BT_ERR("Notify is not set for Data Out characteristic");
return 0;
}
bt_mesh_gattc_info[i].data_out_handle = chr->val_handle;
}
break;
case BLE_HS_EDONE:
/* All characteristics in this service discovered; start discovering
* characteristics in the next service.
*/
for (j = i + 1; j < ARRAY_SIZE(bt_mesh_gattc_info); j++) {
if ((bt_mesh_gattc_info[j].conn.handle == conn_handle) && (bt_mesh_gattc_info[j].start_handle > bt_mesh_gattc_info[j].end_handle)) {
break;
}
}
if (j == ARRAY_SIZE(bt_mesh_gattc_info)) {
for (j = 0; j < ARRAY_SIZE(bt_mesh_gattc_info); j++) {
if ((bt_mesh_gattc_info[j].conn.handle == conn_handle) && bt_mesh_gattc_info[j].data_out_handle) {
break;
}
}
ble_gattc_disc_all_dscs(conn_handle, bt_mesh_gattc_info[j].data_out_handle, bt_mesh_gattc_info[j].end_handle,
dsc_disced, (void *)j);
} else {
ble_gattc_disc_all_chrs(conn_handle, bt_mesh_gattc_info[j].start_handle, bt_mesh_gattc_info[j].end_handle,
chr_disced, (void *)j);
}
break;
default:
rc = error->status;
break;
}
return rc;
}
static int svc_disced(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_svc *service, void *arg)
{
struct bt_mesh_conn *conn = NULL;
int rc = 0, i;
const ble_uuid_any_t *uuid;
uint8_t uuid_length;
switch (error->status) {
case 0:
if (!service) {
return 0;
}
uuid = &service->uuid;
uuid_length = (uint8_t) (uuid->u.type == BLE_UUID_TYPE_16 ? 2 : 16);
if (uuid_length != 2) {
return 0;
}
for (i = 0; i < ARRAY_SIZE(bt_mesh_gattc_info); i++) {
if (bt_mesh_gattc_info[i].service_uuid == (uint16_t)BLE_UUID16(uuid)->value) {
bt_mesh_gattc_info[i].start_handle = service->start_handle;
bt_mesh_gattc_info[i].end_handle = service->end_handle;
break;
}
}
break;
case BLE_HS_EDONE:
for (i = 0; i < ARRAY_SIZE(bt_mesh_gattc_info); i++) {
if (bt_mesh_gattc_info[i].conn.handle == conn_handle) {
break;
}
}
if (i == ARRAY_SIZE(bt_mesh_gattc_info)) {
BT_ERR("Conn handle 0x%04x not found", conn_handle);
return 0;
}
conn = &bt_mesh_gattc_info[i].conn;
if (bt_mesh_gattc_info[i].start_handle == 0x00 ||
bt_mesh_gattc_info[i].end_handle == 0x00 ||
(bt_mesh_gattc_info[i].start_handle > bt_mesh_gattc_info[i].end_handle)) {
bt_mesh_gattc_disconnect(conn);
return 0;
}
/* Get the characteristic num within Mesh Provisioning/Proxy Service */
ble_gattc_disc_all_chrs(conn_handle, bt_mesh_gattc_info[i].start_handle, bt_mesh_gattc_info[i].end_handle,
chr_disced, (void *)i);
break;
default:
rc = error->status;
break;
}
return rc;
}
#endif /* (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || CONFIG_BLE_MESH_GATT_PROXY_CLIENT */
static int disc_cb(struct ble_gap_event *event, void *arg)
{
struct ble_gap_disc_desc *desc;
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT
int rc, i;
uint8_t notif_data[100];
uint16_t notif_len;
ssize_t len;
struct ble_gap_conn_desc conn_desc;
struct bt_mesh_conn *conn = NULL;
#endif
switch (event->type) {
case BLE_GAP_EVENT_DISC: {
struct net_buf_simple buf = {0};
desc = &event->disc;
net_buf_simple_init_with_data(&buf, (void *)desc->data, desc->length_data);
if (bt_mesh_scan_dev_found_cb) {
bt_mesh_scan_dev_found_cb((bt_mesh_addr_t *)&desc->addr, desc->rssi, desc->event_type, &buf);
}
break;
}
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT
case BLE_GAP_EVENT_CONNECT:
if (event->connect.status == 0) {
/* Connection successfully established. */
MODLOG_DFLT(INFO, "Connection established ");
rc = ble_gap_conn_find(event->connect.conn_handle, &conn_desc);
assert(rc == 0);
if (bt_mesh_gattc_conn_cb != NULL && bt_mesh_gattc_conn_cb->connected != NULL) {
for (i = 0; i < ARRAY_SIZE(bt_mesh_gattc_info); i++) {
if (!memcmp(bt_mesh_gattc_info[i].addr.val, conn_desc.peer_id_addr.val, BLE_MESH_ADDR_LEN)) {
bt_mesh_gattc_info[i].conn.handle = event->connect.conn_handle;
(bt_mesh_gattc_conn_cb->connected)(&bt_mesh_gattc_info[i].addr, &bt_mesh_gattc_info[i].conn, i);
break;
}
}
}
}
if (!bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING)) {
rc = ble_gap_disc(BLE_OWN_ADDR_PUBLIC, BLE_HS_FOREVER, &scan_param, disc_cb, NULL);
if (rc != 0) {
BT_ERR("Invalid scan status %d", rc);
break;
}
bt_mesh_atomic_set_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING);
}
break;
case BLE_GAP_EVENT_DISCONNECT:
if (bt_mesh_gattc_conn_cb != NULL && bt_mesh_gattc_conn_cb->disconnected != NULL) {
for (i = 0; i < ARRAY_SIZE(bt_mesh_gattc_info); i++) {
memcpy(&conn_desc, &event->disconnect.conn, sizeof(conn_desc));
if (!memcmp(bt_mesh_gattc_info[i].addr.val, conn_desc.peer_ota_addr.val, BLE_MESH_ADDR_LEN)) {
if (bt_mesh_gattc_info[i].conn.handle == event->disconnect.conn.conn_handle) {
(bt_mesh_gattc_conn_cb->disconnected)(&bt_mesh_gattc_info[i].addr, &bt_mesh_gattc_info[i].conn, event->disconnect.reason);
if (!bt_mesh_gattc_info[i].wr_desc_done) {
/* Add this in case connection is established, connected event comes, but
* connection is terminated before server->filter_type is set to PROV.
*/
#if CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT
if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROV_VAL) {
bt_mesh_provisioner_clear_link_info(bt_mesh_gattc_info[i].addr.val);
}
#endif
}
} else {
/* Add this in case connection is failed to be established, and here we
* need to clear some provision link info, like connecting flag, device
* uuid, address info, etc.
*/
#if CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT
if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROV_VAL) {
bt_mesh_provisioner_clear_link_info(bt_mesh_gattc_info[i].addr.val);
}
#endif
}
#if CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT
if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROV_VAL) {
/* Decrease prov pbg_count */
bt_mesh_provisioner_pbg_count_dec();
}
#endif
/* Reset corresponding gattc info */
memset(&bt_mesh_gattc_info[i], 0, sizeof(bt_mesh_gattc_info[i]));
bt_mesh_gattc_info[i].conn.handle = 0xFFFF;
bt_mesh_gattc_info[i].mtu = BLE_ATT_MTU_DFLT;
bt_mesh_gattc_info[i].wr_desc_done = false;
break;
}
}
}
break;
case BLE_GAP_EVENT_MTU:
for (i = 0; i < ARRAY_SIZE(bt_mesh_gattc_info); i++) {
if (bt_mesh_gattc_info[i].conn.handle == event->mtu.conn_handle) {
bt_mesh_gattc_info[i].mtu = event->mtu.value;
break;
}
}
/** Once mtu exchanged accomplished, start to find services, and here
* need a flag to indicate which service to find(Mesh Prov Service or
* Mesh Proxy Service)
*/
ble_uuid_any_t bt_uuid;
if (i != ARRAY_SIZE(bt_mesh_gattc_info)) {
//service_uuid.len = sizeof(bt_mesh_gattc_info[i].service_uuid);
if (sizeof(bt_mesh_gattc_info[i].service_uuid) == 0x02) {
bt_uuid.u16.u.type = BLE_UUID_TYPE_16;
bt_uuid.u16.value = bt_mesh_gattc_info[i].service_uuid;
} else if (sizeof(bt_mesh_gattc_info[i].service_uuid) == 0x10) {
bt_uuid.u128.u.type = BLE_UUID_TYPE_128;
memcpy(bt_uuid.u128.value, &bt_mesh_gattc_info[i].service_uuid, 16);
}
/* Search Mesh Provisioning Service or Mesh Proxy Service */
ble_gattc_disc_all_svcs(bt_mesh_gattc_info[i].conn.handle, svc_disced, NULL);
}
break;
case BLE_GAP_EVENT_NOTIFY_RX:
for (i = 0; i < ARRAY_SIZE(bt_mesh_gattc_info); i++) {
if (bt_mesh_gattc_info[i].conn.handle == event->notify_rx.conn_handle) {
break;
}
}
if (i == ARRAY_SIZE(bt_mesh_gattc_info)) {
BT_ERR("Conn handle 0x%04x not found", event->notify_rx.conn_handle);
return 0;
}
conn = &bt_mesh_gattc_info[i].conn;
ble_gap_conn_find(event->notify_rx.conn_handle, &conn_desc);
if (bt_mesh_gattc_info[i].data_out_handle != event->notify_rx.attr_handle) {
/* Data isn't populated yet */
return 0;
}
if (memcmp(bt_mesh_gattc_info[i].addr.val, conn_desc.peer_id_addr.val, BLE_MESH_ADDR_LEN) ||
(bt_mesh_gattc_info[i].data_out_handle != event->notify_rx.attr_handle) ||
(event->notify_rx.indication != 0)) {
BT_ERR("Notification error");
bt_mesh_gattc_disconnect(conn);
return 0;
}
notif_len = OS_MBUF_PKTLEN(event->notify_rx.om);
rc = os_mbuf_copydata(event->notify_rx.om, 0, notif_len, notif_data);
if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROV_VAL) {
if (bt_mesh_gattc_conn_cb != NULL && bt_mesh_gattc_conn_cb->prov_notify != NULL) {
len = bt_mesh_gattc_conn_cb->prov_notify(&bt_mesh_gattc_info[i].conn,
notif_data, notif_len);
if (len < 0) {
BT_ERR("prov_notify failed");
bt_mesh_gattc_disconnect(conn);
return 0;
}
}
} else if (bt_mesh_gattc_info[i].service_uuid == BLE_MESH_UUID_MESH_PROXY_VAL) {
if (bt_mesh_gattc_conn_cb != NULL && bt_mesh_gattc_conn_cb->proxy_notify != NULL &&
bt_mesh_gattc_info[i].wr_desc_done) {
len = bt_mesh_gattc_conn_cb->proxy_notify(&bt_mesh_gattc_info[i].conn,
notif_data, notif_len);
if (len < 0) {
BT_ERR("proxy_notify failed");
bt_mesh_gattc_disconnect(conn);
return 0;
}
}
}
break;
#endif
default:
break;
}
return 0;
}
static int start_le_scan(uint8_t scan_type, uint16_t interval, uint16_t window, uint8_t filter_dup)
{
scan_param.filter_duplicates = filter_dup;
scan_param.itvl = interval;
scan_param.window = window;
if (scan_type == BLE_MESH_SCAN_PASSIVE) {
scan_param.passive = 1;
} else {
scan_param.passive = 0;
}
ble_gap_disc(BLE_OWN_ADDR_PUBLIC, BLE_HS_FOREVER, &scan_param, disc_cb, 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 int set_ad(const struct bt_mesh_adv_data *ad, size_t ad_len, uint8_t *buf, uint8_t *buf_len)
{
int i;
for (i = 0; i < ad_len; i++) {
buf[(*buf_len)++] = ad[i].data_len + 1;
buf[(*buf_len)++] = ad[i].type;
memcpy(&buf[*buf_len], ad[i].data,
ad[i].data_len);
*buf_len += ad[i].data_len;
}
return 0;
}
#if defined(CONFIG_BLE_MESH_NODE) && CONFIG_BLE_MESH_NODE
static struct bt_mesh_gatt_attr *bt_mesh_gatts_find_attr_by_handle(uint16_t handle);
static int gap_event_cb(struct ble_gap_event *event, void *arg)
{
struct ble_gap_conn_desc desc;
int rc;
switch (event->type) {
case BLE_GAP_EVENT_CONNECT:
/* A new connection was established or a connection attempt failed. */
MODLOG_DFLT(INFO, "connection %s; status=%d ",
event->connect.status == 0 ? "established" : "failed",
event->connect.status);
if (event->connect.status == 0) {
rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
assert(rc == 0);
}
MODLOG_DFLT(INFO, "\n");
#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(event->connect.conn_handle);
if (index < BLE_MESH_MAX_CONN) {
bt_mesh_gatts_conn[index].handle = BLE_MESH_GATT_GET_CONN_ID(event->connect.conn_handle);
(bt_mesh_gatts_conn_cb->connected)(&bt_mesh_gatts_conn[index], 0);
}
memcpy(bt_mesh_gatts_addr, desc.peer_id_addr.val, 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.
*/
ble_svc_gatt_changed(prov_svc_start_handle, 0xffff);
}
return 0;
case BLE_GAP_EVENT_DISCONNECT:
MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason);
MODLOG_DFLT(INFO, "\n");
#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(event->disconnect.conn.conn_handle);
if (index < BLE_MESH_MAX_CONN) {
bt_mesh_gatts_conn[index].handle = BLE_MESH_GATT_GET_CONN_ID(event->disconnect.conn.conn_handle);
(bt_mesh_gatts_conn_cb->disconnected)(&bt_mesh_gatts_conn[index], event->disconnect.reason);
}
memset(bt_mesh_gatts_addr, 0x0, BLE_MESH_ADDR_LEN);
}
return 0;
case BLE_GAP_EVENT_CONN_UPDATE:
/* The central has updated the connection parameters. */
MODLOG_DFLT(INFO, "connection updated; status=%d ",
event->conn_update.status);
rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
assert(rc == 0);
MODLOG_DFLT(INFO, "\n");
return 0;
case BLE_GAP_EVENT_ADV_COMPLETE:
MODLOG_DFLT(INFO, "advertise complete; reason=%d",
event->adv_complete.reason);
return 0;
case BLE_GAP_EVENT_ENC_CHANGE:
/* Encryption has been enabled or disabled for this connection. */
MODLOG_DFLT(INFO, "encryption change event; status=%d ",
event->enc_change.status);
rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
assert(rc == 0);
MODLOG_DFLT(INFO, "\n");
return 0;
case BLE_GAP_EVENT_SUBSCRIBE:
MODLOG_DFLT(INFO, "subscribe event; conn_handle=%d attr_handle=%d "
"reason=%d prevn=%d curn=%d previ=%d curi=%d\n",
event->subscribe.conn_handle,
event->subscribe.attr_handle,
event->subscribe.reason,
event->subscribe.prev_notify,
event->subscribe.cur_notify,
event->subscribe.prev_indicate,
event->subscribe.cur_indicate);
struct bt_mesh_gatt_attr *attr = bt_mesh_gatts_find_attr_by_handle(event->subscribe.attr_handle + 1);
uint8_t index = BLE_MESH_GATT_GET_CONN_ID(event->subscribe.conn_handle);
uint16_t len = 0;
uint16_t ccc_val = 0;
if (event->subscribe.prev_notify != event->subscribe.cur_notify) {
ccc_val = event->subscribe.cur_notify;
} else if (event->subscribe.prev_indicate != event->subscribe.cur_indicate) {
if (event->subscribe.cur_indicate) {
ccc_val = 2;
} else {
ccc_val = 0;
}
}
if (attr != NULL && attr->write != NULL) {
if ((len = attr->write(&bt_mesh_gatts_conn[index], attr,
&ccc_val,
sizeof(ccc_val),
0 /* offset */, 0)) > 0) {
}
}
return 0;
case BLE_GAP_EVENT_MTU:
MODLOG_DFLT(INFO, "mtu update event; conn_handle=%d cid=%d mtu=%d\n",
event->mtu.conn_handle,
event->mtu.channel_id,
event->mtu.value);
return 0;
case BLE_GAP_EVENT_REPEAT_PAIRING:
/* We already have a bond with the peer, but it is attempting to
* establish a new secure link. This app sacrifices security for
* convenience: just throw away the old bond and accept the new link.
*/
/* Delete the old bond. */
rc = ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc);
assert(rc == 0);
ble_store_util_delete_peer(&desc.peer_id_addr);
/* Return BLE_GAP_REPEAT_PAIRING_RETRY to indicate that the host should
* continue with the pairing operation.
*/
return BLE_GAP_REPEAT_PAIRING_RETRY;
case BLE_GAP_EVENT_PASSKEY_ACTION:
MODLOG_DFLT(INFO, "PASSKEY_ACTION_EVENT started \n");
return 0;
}
return 0;
}
#else
static int gap_event_cb(struct ble_gap_event *event, void *arg)
{
return 0;
}
#endif
/* 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)
{
struct ble_gap_adv_params adv_params;
uint8_t buf[BLE_HS_ADV_MAX_SZ];
uint16_t interval = 0;
uint8_t buf_len = 0;
int err;
#if BLE_MESH_DEV
if (bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_ADVERTISING)) {
return -EALREADY;
}
#endif
err = set_ad(ad, ad_len, buf, &buf_len);
if (err) {
BT_ERR("set_ad failed: err %d", err);
return err;
}
err = ble_gap_adv_set_data(buf, buf_len);
if (err != 0) {
BT_ERR("Advertising set failed: err %d", err);
return err;
}
if (sd && (param->options & BLE_MESH_ADV_OPT_CONNECTABLE)) {
buf_len = 0;
err = set_ad(sd, sd_len, buf, &buf_len);
if (err) {
BT_ERR("set_ad failed: err %d", err);
return err;
}
err = ble_gap_adv_rsp_set_data(buf, buf_len);
if (err != 0) {
BT_ERR("Scan rsp failed: err %d", err);
return err;
}
}
memset(&adv_params, 0, sizeof adv_params);
if (param->options & BLE_MESH_ADV_OPT_CONNECTABLE) {
adv_params.conn_mode = BLE_GAP_CONN_MODE_UND;
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
} else if (sd != NULL) {
adv_params.conn_mode = BLE_GAP_CONN_MODE_NON;
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
} else {
adv_params.conn_mode = BLE_GAP_CONN_MODE_NON;
adv_params.disc_mode = BLE_GAP_DISC_MODE_NON;
}
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_params.conn_mode == BLE_GAP_CONN_MODE_NON &&
adv_params.disc_mode == BLE_GAP_DISC_MODE_NON && interval >= 16) {
interval >>= 1;
interval += (bt_mesh_get_rand() % (interval + 1));
BT_INFO("%u->%u", param->interval_min, interval);
}
#endif
adv_params.itvl_min = interval;
adv_params.itvl_max = interval;
again:
err = ble_gap_adv_start(BLE_OWN_ADDR_PUBLIC, NULL, BLE_HS_FOREVER, &adv_params,
gap_event_cb, NULL);
if (err) {
if (err == BLE_HS_EALREADY) {
ble_gap_adv_stop();
goto again;
}
BT_ERR("Advertising start failed: err %d", err);
return err;
}
#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 ble_gap_adv_params adv_params = {0};
ble_addr_t p_dir_bda = {0};
int err = 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) {
err = ble_gap_adv_set_data(data->adv_data, data->adv_data_len);
if (err) {
BT_ERR("Failed to set advertising data, err %d", err);
return err;
}
}
if (data->scan_rsp_data_len && param->adv_type != BLE_MESH_ADV_NONCONN_IND) {
err = ble_gap_adv_rsp_set_data(data->scan_rsp_data, data->scan_rsp_data_len);
if (err) {
BT_ERR("Failed to set scan rsp data, err %d", err);
return err;
}
}
}
switch (param->adv_type) {
case BLE_MESH_ADV_IND:
adv_params.conn_mode = BLE_GAP_CONN_MODE_UND;
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
break;
case BLE_MESH_ADV_DIRECT_IND:
adv_params.conn_mode = BLE_GAP_CONN_MODE_DIR;
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
break;
case BLE_MESH_ADV_SCAN_IND:
adv_params.conn_mode = BLE_GAP_CONN_MODE_NON;
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
break;
case BLE_MESH_ADV_NONCONN_IND:
adv_params.conn_mode = BLE_GAP_CONN_MODE_NON;
adv_params.disc_mode = BLE_GAP_DISC_MODE_NON;
break;
case BLE_MESH_ADV_DIRECT_IND_LOW_DUTY:
adv_params.conn_mode = BLE_GAP_CONN_MODE_DIR;
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
break;
}
adv_params.itvl_min = param->interval;
adv_params.itvl_max = param->interval;
adv_params.channel_map = BLE_MESH_ADV_CHNL_37 | BLE_MESH_ADV_CHNL_38 | BLE_MESH_ADV_CHNL_39;
adv_params.filter_policy = BLE_MESH_AP_SCAN_CONN_ALL;
adv_params.high_duty_cycle = (param->adv_type == BLE_MESH_ADV_DIRECT_IND) ? true : false;
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.val, param->peer_addr, BLE_MESH_ADDR_LEN);
}
err = ble_gap_adv_start(param->own_addr_type, &p_dir_bda, BLE_HS_FOREVER, &adv_params,
gap_event_cb, NULL);
if (err) {
BT_ERR("Failed to start advertising, err %d", err);
return err;
}
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_gap_adv_stop();
#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;
if (bt_mesh_atomic_test_bit(bt_mesh_dev.flags, BLE_MESH_DEV_SCANNING)) {
BT_INFO("Scan is already started");
return -EALREADY;
}
#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);
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;
}