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esp-idf/components/bt/esp_ble_mesh/core/scan.c

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16 KiB
C
Czysty Wina Historia

/* Bluetooth Mesh */
/*
* SPDX-FileCopyrightText: 2017 Intel Corporation
* SPDX-FileContributor: 2020-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include "btc_ble_mesh_ble.h"
#include "mesh/config.h"
#include "mesh/trace.h"
#include "mesh/buf.h"
#include "mesh/uuid.h"
#include "scan.h"
#include "beacon.h"
#include "net.h"
#include "prov_node.h"
#include "proxy_client.h"
#include "proxy_server.h"
#include "prov_pvnr.h"
#include "mesh/adapter.h"
#include "mesh_v1.1/utils.h"
/* Scan Window and Interval are equal for continuous scanning */
#define SCAN_INTERVAL 0x20
#define SCAN_WINDOW 0x20
#define PROV_SVC_DATA_LEN 0x12
#define PROXY_SVC_DATA_LEN_NET_ID 0x09
#define PROXY_SVC_DATA_LEN_NODE_ID 0x11
#define PROXY_SVC_DATA_LEN_PRIVATE_NET_ID 0x11
#define PROXY_SVC_DATA_LEN_PRIVATE_NODE_ID 0x11
#if (CONFIG_BLE_MESH_PROVISIONER || CONFIG_BLE_MESH_RPR_SRV)
static const bt_mesh_addr_t *unprov_dev_addr;
static uint8_t current_adv_type;
static struct {
uint8_t start_idx;
uint8_t end_idx;
uint8_t pair_num;
struct {
uint8_t uuid[16];
uint8_t adv_type;
uint8_t addr[6];
} info[BLE_MESH_STORE_UNPROV_INFO_MAX_NUM];
} unprov_dev_info_fifo;
int bt_mesh_unprov_dev_fifo_dequeue(uint8_t *uuid, uint8_t *addr)
{
uint8_t idx = 0;
if (unprov_dev_info_fifo.pair_num == 0) {
return 0;
}
idx = unprov_dev_info_fifo.start_idx;
if (uuid) {
memcpy(uuid, unprov_dev_info_fifo.info[idx].uuid, 16);
}
if (addr) {
memcpy(addr, unprov_dev_info_fifo.info[idx].addr, 6);
}
idx = (idx + 1) % BLE_MESH_STORE_UNPROV_INFO_MAX_NUM;
unprov_dev_info_fifo.start_idx = idx;
unprov_dev_info_fifo.pair_num--;
return 0;
}
int bt_mesh_unprov_dev_info_query(uint8_t uuid[16], uint8_t addr[6],
uint8_t *adv_type, uint8_t query_type)
{
uint8_t idx = 0;
uint8_t cnt = 0;
if (uuid == NULL || addr == NULL) {
BT_WARN("No available information to query");
return -1;
}
while (cnt < unprov_dev_info_fifo.pair_num) {
idx = (cnt + unprov_dev_info_fifo.start_idx) % BLE_MESH_STORE_UNPROV_INFO_MAX_NUM;
if (query_type & BLE_MESH_STORE_UNPROV_INFO_QUERY_TYPE_UUID) {
if (!memcmp(unprov_dev_info_fifo.info[idx].addr, addr, 6)) {
if (query_type & BLE_MESH_STORE_UNPROV_INFO_QUERY_TYPE_EXISTS) {
return 0;
} else {
memcpy(uuid, unprov_dev_info_fifo.info[idx].uuid, 16);
*adv_type = unprov_dev_info_fifo.info[idx].adv_type;
break;
}
}
} else {
if (!memcmp(unprov_dev_info_fifo.info[idx].uuid, uuid, 16)) {
if (query_type & BLE_MESH_STORE_UNPROV_INFO_QUERY_TYPE_EXISTS) {
return 0;
} else {
memcpy(addr, unprov_dev_info_fifo.info[idx].addr, 6);
*adv_type = unprov_dev_info_fifo.info[idx].adv_type;
break;
}
}
}
cnt++;
}
if (cnt == unprov_dev_info_fifo.pair_num) {
BT_WARN("Didn't find info for %d", query_type);
return -1;
}
return 0;
}
int bt_mesh_unprov_dev_fifo_enqueue(uint8_t uuid[16], const uint8_t addr[6], uint8_t adv_type)
{
uint8_t idx = 0;
if (uuid == NULL || addr == NULL) {
BT_ERR("Invalid argument %s", __func__);
return -EINVAL;
}
if (unprov_dev_info_fifo.pair_num == BLE_MESH_STORE_UNPROV_INFO_MAX_NUM) {
bt_mesh_unprov_dev_fifo_dequeue(NULL, NULL);
}
idx = unprov_dev_info_fifo.end_idx;
memcpy(unprov_dev_info_fifo.info[idx].uuid, uuid, 16);
memcpy(unprov_dev_info_fifo.info[idx].addr, addr, 6);
unprov_dev_info_fifo.info[idx].adv_type = adv_type;
idx = (idx + 1) % BLE_MESH_STORE_UNPROV_INFO_MAX_NUM;
unprov_dev_info_fifo.end_idx = idx;
unprov_dev_info_fifo.pair_num++;
return 0;
}
const bt_mesh_addr_t *bt_mesh_get_unprov_dev_addr(void)
{
return unprov_dev_addr;
}
uint8_t bt_mesh_get_adv_type(void)
{
return current_adv_type;
}
#endif /* (CONFIG_BLE_MESH_PROVISIONER || CONFIG_BLE_MESH_RPR_SRV) */
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT || \
CONFIG_BLE_MESH_PROXY_SOLIC_PDU_RX
static bool adv_flags_valid(struct net_buf_simple *buf)
{
uint8_t flags = 0U;
if (buf->len != 1U) {
BT_DBG("Unexpected adv flags length %d", buf->len);
return false;
}
flags = net_buf_simple_pull_u8(buf);
BT_DBG("Received adv pkt with flags: 0x%02x", flags);
/* Flags context will not be checked currently */
ARG_UNUSED(flags);
return true;
}
static bool adv_service_uuid_valid(struct net_buf_simple *buf, uint16_t *uuid)
{
if (buf->len != 2U) {
BT_DBG("Length not match mesh service uuid");
return false;
}
*uuid = net_buf_simple_pull_le16(buf);
BT_DBG("Received adv pkt with service UUID: %d", *uuid);
if (*uuid != BLE_MESH_UUID_MESH_PROV_VAL &&
*uuid != BLE_MESH_UUID_MESH_PROXY_VAL &&
*uuid != BLE_MESH_UUID_MESH_PROXY_SOLIC_VAL) {
return false;
}
/**
* @brief In remote provisioning.
* A Node could handle the unprovisioned beacon.
* CASE: MESH/SR/RPR/SCN/BV-01-C
*/
#if CONFIG_BLE_MESH_RPR_SRV
if (*uuid == BLE_MESH_UUID_MESH_PROV_VAL &&
!IS_ENABLED(CONFIG_BLE_MESH_PB_GATT)) {
return false;
}
#else
if (*uuid == BLE_MESH_UUID_MESH_PROV_VAL &&
(bt_mesh_is_provisioner_en() == false ||
!IS_ENABLED(CONFIG_BLE_MESH_PB_GATT))) {
return false;
}
#endif
if (*uuid == BLE_MESH_UUID_MESH_PROXY_VAL &&
!IS_ENABLED(CONFIG_BLE_MESH_GATT_PROXY_CLIENT)) {
return false;
}
if (*uuid == BLE_MESH_UUID_MESH_PROXY_SOLIC_VAL &&
!IS_ENABLED(CONFIG_BLE_MESH_PROXY_SOLIC_PDU_RX)) {
return false;
}
return true;
}
static void handle_adv_service_data(struct net_buf_simple *buf,
const bt_mesh_addr_t *addr,
uint16_t uuid, int8_t rssi)
{
uint16_t type = 0U;
if (!buf || !addr) {
BT_ERR("%s, Invalid parameter", __func__);
return;
}
type = net_buf_simple_pull_le16(buf);
if (type != uuid) {
BT_DBG("Invalid Mesh Service Data UUID 0x%04x", type);
return;
}
switch (type) {
#if CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT
case BLE_MESH_UUID_MESH_PROV_VAL:
if (bt_mesh_is_provisioner_en()) {
if (buf->len != PROV_SVC_DATA_LEN) {
BT_WARN("Invalid Mesh Prov Service Data length %d", buf->len);
return;
}
BT_DBG("Start to handle Mesh Prov Service Data");
bt_mesh_provisioner_prov_adv_recv(buf, addr, rssi);
}
if (IS_ENABLED(CONFIG_BLE_MESH_RPR_SRV) &&
bt_mesh_is_provisioned()) {
const bt_mesh_addr_t *addr = bt_mesh_get_unprov_dev_addr();
bt_mesh_unprov_dev_fifo_enqueue(buf->data, addr->val, bt_mesh_get_adv_type());
bt_mesh_rpr_srv_unprov_beacon_recv(buf, bt_mesh_get_adv_type(), addr, rssi);
}
break;
#endif
#if CONFIG_BLE_MESH_GATT_PROXY_CLIENT
case BLE_MESH_UUID_MESH_PROXY_VAL:
if (buf->len != PROXY_SVC_DATA_LEN_NET_ID &&
buf->len != PROXY_SVC_DATA_LEN_NODE_ID) {
/* PROXY_SVC_DATA_LEN_NODE_ID,
* PROXY_SVC_DATA_LEN_PRIVATE_NET_ID and
* PROXY_SVC_DATA_LEN_PRIVATE_NODE_ID are equal to 0x11
*/
BT_WARN("Invalid Mesh Proxy Service Data length %d", buf->len);
return;
}
BT_DBG("Start to handle Mesh Proxy Service Data");
bt_mesh_proxy_client_gatt_adv_recv(buf, addr, rssi);
break;
#endif
#if CONFIG_BLE_MESH_PROXY_SOLIC_PDU_RX
case BLE_MESH_UUID_MESH_PROXY_SOLIC_VAL:
if (buf->len != (1 + BLE_MESH_NET_HDR_LEN + 8)) {
BT_WARN("Invalid Mesh Proxy Solic Service Data length %d", buf->len);
return;
}
BT_DBG("Start to handle Mesh Proxy Solic Service Data");
bt_mesh_proxy_server_solic_recv(buf, addr, rssi);
break;
#endif
default:
break;
}
}
#endif /* (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT || \
CONFIG_BLE_MESH_PROXY_SOLIC_PDU_RX */
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
static bool ble_scan_en;
int bt_mesh_start_ble_scan(struct bt_mesh_ble_scan_param *param)
{
if (ble_scan_en == true) {
BT_WARN("%s, Already", __func__);
return -EALREADY;
}
ble_scan_en = true;
return 0;
}
int bt_mesh_stop_ble_scan(void)
{
if (ble_scan_en == false) {
BT_WARN("%s, Already", __func__);
return -EALREADY;
}
ble_scan_en = false;
return 0;
}
static void inline callback_ble_adv_pkt(const bt_mesh_addr_t *addr,
uint8_t adv_type, uint8_t data[],
uint16_t length, int8_t rssi)
{
if (ble_scan_en) {
bt_mesh_ble_scan_cb_evt_to_btc(addr, adv_type, data, length, rssi);
}
}
#endif /* CONFIG_BLE_MESH_SUPPORT_BLE_SCAN */
#if CONFIG_BLE_MESH_RPR_SRV
static bool rpr_ext_scan_handle_adv_pkt(const bt_mesh_addr_t *addr,
uint8_t data[], uint16_t length)
{
struct net_buf_simple buf = {0};
bool rpr_adv = false;
if (bt_mesh_is_provisioned() == false) {
return false;
}
net_buf_simple_init_with_data(&buf, data, length);
bt_mesh_rpr_srv_extended_scan(&buf, addr, &rpr_adv);
return rpr_adv;
}
#endif /* CONFIG_BLE_MESH_RPR_SRV */
static void bt_mesh_scan_cb(const bt_mesh_addr_t *addr,
int8_t rssi, uint8_t adv_type,
struct net_buf_simple *buf,
uint8_t scan_rsp_len)
{
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT || \
CONFIG_BLE_MESH_PROXY_SOLIC_PDU_RX
uint16_t uuid = 0U;
#endif
#if (CONFIG_BLE_MESH_RPR_SRV || CONFIG_BLE_MESH_SUPPORT_BLE_SCAN)
uint8_t *adv_data = buf->data;
uint16_t adv_len = buf->len;
#endif
if (adv_type != BLE_MESH_ADV_NONCONN_IND && adv_type != BLE_MESH_ADV_IND) {
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
callback_ble_adv_pkt(addr, adv_type, adv_data, adv_len, rssi);
#endif
return;
}
BT_DBG("scan, len %u: %s", buf->len, bt_hex(buf->data, buf->len));
#if (CONFIG_BLE_MESH_PROVISIONER || CONFIG_BLE_MESH_RPR_SRV)
unprov_dev_addr = addr;
current_adv_type = adv_type;
#endif
while (buf->len > 1) {
struct net_buf_simple_state state;
uint8_t len, type;
len = net_buf_simple_pull_u8(buf);
/* Check for early termination */
if (len == 0U) {
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
callback_ble_adv_pkt(addr, adv_type, adv_data, adv_len, rssi);
#endif
return;
}
if (len > buf->len) {
BT_DBG("AD malformed");
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
callback_ble_adv_pkt(addr, adv_type, adv_data, adv_len, rssi);
#endif
return;
}
net_buf_simple_save(buf, &state);
type = net_buf_simple_pull_u8(buf);
buf->len = len - 1;
if ((type == BLE_MESH_DATA_MESH_PROV || type == BLE_MESH_DATA_MESH_MESSAGE ||
type == BLE_MESH_DATA_MESH_BEACON) && (adv_type != BLE_MESH_ADV_NONCONN_IND)) {
BT_DBG("Ignore mesh packet (type 0x%02x) with adv_type 0x%02x", type, adv_type);
return;
}
switch (type) {
case BLE_MESH_DATA_MESH_MESSAGE:
bt_mesh_net_recv(buf, rssi, BLE_MESH_NET_IF_ADV);
break;
#if CONFIG_BLE_MESH_PB_ADV
case BLE_MESH_DATA_MESH_PROV:
if (IS_ENABLED(CONFIG_BLE_MESH_NODE) && bt_mesh_is_node()) {
bt_mesh_pb_adv_recv(buf);
}
if (IS_ENABLED(CONFIG_BLE_MESH_PROVISIONER) && bt_mesh_is_provisioner_en()) {
bt_mesh_provisioner_pb_adv_recv(buf);
}
break;
#endif /* CONFIG_BLE_MESH_PB_ADV */
case BLE_MESH_DATA_MESH_BEACON:
bt_mesh_beacon_recv(buf, rssi);
break;
#if (CONFIG_BLE_MESH_PROVISIONER && CONFIG_BLE_MESH_PB_GATT) || \
CONFIG_BLE_MESH_GATT_PROXY_CLIENT || \
CONFIG_BLE_MESH_PROXY_SOLIC_PDU_RX
case BLE_MESH_DATA_FLAGS:
if (!adv_flags_valid(buf)) {
BT_DBG("Adv Flags mismatch, ignore this adv pkt");
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
callback_ble_adv_pkt(addr, adv_type, adv_data, adv_len, rssi);
#endif
return;
}
break;
case BLE_MESH_DATA_UUID16_ALL:
if (!adv_service_uuid_valid(buf, &uuid)) {
BT_DBG("Adv Service UUID mismatch, ignore this adv pkt");
#if CONFIG_BLE_MESH_RPR_SRV
if (rpr_ext_scan_handle_adv_pkt(addr, adv_data, adv_len)) {
/* If handled as extended scan report successfully, then not
* notify to the application layer as normal BLE adv packet.
*/
return;
}
#endif
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
callback_ble_adv_pkt(addr, adv_type, adv_data, adv_len, rssi);
#endif
return;
}
break;
case BLE_MESH_DATA_SVC_DATA16:
handle_adv_service_data(buf, addr, uuid, rssi);
break;
#endif
default:
#if CONFIG_BLE_MESH_RPR_SRV
if (rpr_ext_scan_handle_adv_pkt(addr, adv_data, adv_len)) {
/* If handled as extended scan report successfully, then not
* notify to the application layer as normal BLE adv packet.
*/
return;
}
#endif
#if CONFIG_BLE_MESH_SUPPORT_BLE_SCAN
callback_ble_adv_pkt(addr, adv_type, adv_data, adv_len, rssi);
#endif
return;
}
net_buf_simple_restore(buf, &state);
net_buf_simple_pull(buf, len);
}
#if CONFIG_BLE_MESH_RPR_SRV && CONFIG_BLE_MESH_RPR_SRV_ACTIVE_SCAN
if (scan_rsp_len != 0) {
/**
* scan response is only visible for remote provisioning extend scan.
*/
rpr_ext_scan_handle_adv_pkt(addr, adv_data + adv_len, scan_rsp_len);
}
#endif /* CONFIG_BLE_MESH_RPR_SRV && CONFIG_BLE_MESH_RPR_SRV_ACTIVE_SCAN */
}
int bt_mesh_scan_enable(void)
{
int err = 0;
struct bt_mesh_scan_param scan_param = {
#if CONFIG_BLE_MESH_RPR_SRV_ACTIVE_SCAN
.type = BLE_MESH_SCAN_ACTIVE,
#else
.type = BLE_MESH_SCAN_PASSIVE,
#endif
#if CONFIG_BLE_MESH_USE_DUPLICATE_SCAN
.filter_dup = BLE_MESH_SCAN_FILTER_DUP_ENABLE,
#else
.filter_dup = BLE_MESH_SCAN_FILTER_DUP_DISABLE,
#endif
.interval = SCAN_INTERVAL,
.window = SCAN_WINDOW,
.scan_fil_policy = BLE_MESH_SP_ADV_ALL,
};
err = bt_le_scan_start(&scan_param, bt_mesh_scan_cb);
if (err && err != -EALREADY) {
BT_ERR("starting scan failed (err %d)", err);
return err;
}
return 0;
}
int bt_mesh_scan_disable(void)
{
int err = 0;
err = bt_le_scan_stop();
if (err && err != -EALREADY) {
BT_ERR("stopping scan failed (err %d)", err);
return err;
}
return 0;
}
#if CONFIG_BLE_MESH_TEST_USE_WHITE_LIST
int bt_mesh_scan_with_wl_enable(void)
{
int err = 0;
struct bt_mesh_scan_param scan_param = {
.type = BLE_MESH_SCAN_PASSIVE,
#if CONFIG_BLE_MESH_USE_DUPLICATE_SCAN
.filter_dup = BLE_MESH_SCAN_FILTER_DUP_ENABLE,
#else
.filter_dup = BLE_MESH_SCAN_FILTER_DUP_DISABLE,
#endif
.interval = SCAN_INTERVAL,
.window = SCAN_WINDOW,
.scan_fil_policy = BLE_MESH_SP_ADV_WL,
};
err = bt_le_scan_start(&scan_param, bt_mesh_scan_cb);
if (err && err != -EALREADY) {
BT_ERR("starting scan failed (err %d)", err);
return err;
}
return 0;
}
#endif /* CONFIG_BLE_MESH_TEST_USE_WHITE_LIST */
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