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Fix missing data when reading large values.

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The wrong length value was being used to set the values read from peer attributes.
This has been corrected to use the proper value size.
This commit is contained in:
h2zero 2021-12-29 14:01:37 -07:00
parent 7a82067177
commit f2ade345f4
2 changed files with 8 additions and 6 deletions
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7
src/NimBLERemoteCharacteristic.cpp
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@ -547,11 +547,12 @@ int NimBLERemoteCharacteristic::onReadCB(uint16_t conn_handle,
if(rc == 0) { if(rc == 0) {
if(attr) { if(attr) {
if(((*strBuf).length() + attr->om->om_len) > BLE_ATT_ATTR_MAX_LEN) { uint32_t data_len = OS_MBUF_PKTLEN(attr->om);
if(((*strBuf).length() + data_len) > BLE_ATT_ATTR_MAX_LEN) {
rc = BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN; rc = BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
} else { } else {
NIMBLE_LOGD(LOG_TAG, "Got %d bytes", attr->om->om_len); NIMBLE_LOGD(LOG_TAG, "Got %d bytes", data_len);
(*strBuf) += std::string((char*) attr->om->om_data, attr->om->om_len); (*strBuf) += std::string((char*) attr->om->om_data, data_len);
return 0; return 0;
} }
} }

7
src/NimBLERemoteDescriptor.cpp
View file

@ -202,11 +202,12 @@ int NimBLERemoteDescriptor::onReadCB(uint16_t conn_handle,
if(rc == 0) { if(rc == 0) {
if(attr) { if(attr) {
if(((*strBuf).length() + attr->om->om_len) > BLE_ATT_ATTR_MAX_LEN) { uint32_t data_len = OS_MBUF_PKTLEN(attr->om);
if(((*strBuf).length() + data_len) > BLE_ATT_ATTR_MAX_LEN) {
rc = BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN; rc = BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
} else { } else {
NIMBLE_LOGD(LOG_TAG, "Got %d bytes", attr->om->om_len); NIMBLE_LOGD(LOG_TAG, "Got %d bytes", data_len);
(*strBuf) += std::string((char*) attr->om->om_data, attr->om->om_len); (*strBuf) += std::string((char*) attr->om->om_data, data_len);
return 0; return 0;
} }
} }