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fix scan rsp length err

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This commit is contained in:
zhiweijian
2021-02-22 14:45:05 +08:00
parent 7a85334d80
commit db72885f15
1 changed files with 6 additions and 12 deletions
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18
components/bt/bluedroid/stack/btm/btm_ble_gap.c
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@ -2924,7 +2924,6 @@ void btm_ble_cache_adv_data(BD_ADDR bda, tBTM_INQ_RESULTS *p_cur, UINT8 data_len
{
tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var;
UINT8 *p_cache;
UINT8 length;
/* cache adv report/scan response data */
if (evt_type != BTM_BLE_SCAN_RSP_EVT) {
@ -2945,17 +2944,12 @@ void btm_ble_cache_adv_data(BD_ADDR bda, tBTM_INQ_RESULTS *p_cur, UINT8 data_len
if (data_len > 0) {
p_cache = &p_le_inq_cb->adv_data_cache[p_le_inq_cb->adv_len];
STREAM_TO_UINT8(length, p);
while ( length && ((p_le_inq_cb->adv_len + length + 1) <= BTM_BLE_CACHE_ADV_DATA_MAX)) {
/* copy from the length byte & data into cache */
memcpy(p_cache, p - 1, length + 1);
/* advance the cache pointer past data */
p_cache += length + 1;
/* increment cache length */
p_le_inq_cb->adv_len += length + 1;
/* skip the length of data */
p += length;
STREAM_TO_UINT8(length, p);
if((data_len + p_le_inq_cb->adv_len) <= BTM_BLE_CACHE_ADV_DATA_MAX) {
memcpy(p_cache, p, data_len);
p_le_inq_cb->adv_len += data_len;
}
}