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[Bugfix] HCI response to disconnect of unknown ID should return success. #1130

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Merged
h2zero merged 1 commit into from
Mar 28, 2026
+27 −17
Merged

[Bugfix] HCI response to disconnect of unknown ID should return success. #1130

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31 changes: 19 additions & 12 deletions src/NimBLEClient.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -354,7 +354,7 @@ bool NimBLEClient::secureConnection(bool async) const {
if (NimBLEDevice::startSecurity(m_connHandle)) {
NimBLEUtils::taskWait(taskData, BLE_NPL_TIME_FOREVER);
}
} while (taskData.m_flags == (BLE_HS_ERR_HCI_BASE + BLE_ERR_PINKEY_MISSING) && retryCount--);
} while (taskData.m_flags == BLE_HS_HCI_ERR(BLE_ERR_PINKEY_MISSING) && retryCount--);

m_pTaskData = nullptr;

Expand All @@ -364,7 +364,10 @@ bool NimBLEClient::secureConnection(bool async) const {
}

m_lastErr = taskData.m_flags;
NIMBLE_LOGE(LOG_TAG, "secureConnection: failed rc=%d", taskData.m_flags);
NIMBLE_LOGE(LOG_TAG,
"secureConnection: failed rc=%d %s",
taskData.m_flags,
NimBLEUtils::returnCodeToString(taskData.m_flags));
return false;

} // secureConnection
Expand All @@ -375,14 +378,19 @@ bool NimBLEClient::secureConnection(bool async) const {
*/
bool NimBLEClient::disconnect(uint8_t reason) {
int rc = ble_gap_terminate(m_connHandle, reason);
if (rc != 0 && rc != BLE_HS_ENOTCONN && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_terminate failed: rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
m_lastErr = rc;
return false;
switch (rc) {
case 0:
m_connStatus = DISCONNECTING;
return true;
case BLE_HS_ENOTCONN:
case BLE_HS_EALREADY:
case BLE_HS_HCI_ERR(BLE_ERR_UNK_CONN_ID): // should not happen but just in case
return true;
}

m_connStatus = (rc == BLE_HS_ENOTCONN) ? DISCONNECTED : DISCONNECTING;
return true;
NIMBLE_LOGE(LOG_TAG, "ble_gap_terminate failed: rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
m_lastErr = rc;
return false;
} // disconnect

/**
Expand Down Expand Up @@ -1051,7 +1059,7 @@ int NimBLEClient::handleGapEvent(struct ble_gap_event* event, void* arg) {
// set this incase the client instance was changed due to incorrect event arg bug above
pTaskData = pClient->m_pTaskData;

const int connEstablishFailReason = BLE_HS_ERR_HCI_BASE + BLE_ERR_CONN_ESTABLISHMENT;
const int connEstablishFailReason = BLE_HS_HCI_ERR(BLE_ERR_CONN_ESTABLISHMENT);
if (rc == connEstablishFailReason && pClient->m_connectFailRetryCount < pClient->m_config.connectFailRetries) {
pClient->m_connHandle = BLE_HS_CONN_HANDLE_NONE;
++pClient->m_connectFailRetryCount;
Expand Down Expand Up @@ -1263,16 +1271,15 @@ int NimBLEClient::handleGapEvent(struct ble_gap_event* event, void* arg) {
pTaskData = nullptr;
}

if (event->enc_change.status == 0 ||
event->enc_change.status == (BLE_HS_ERR_HCI_BASE + BLE_ERR_PINKEY_MISSING)) {
if (event->enc_change.status == 0 || event->enc_change.status == BLE_HS_HCI_ERR(BLE_ERR_PINKEY_MISSING)) {
NimBLEConnInfo peerInfo;
rc = ble_gap_conn_find(event->enc_change.conn_handle, &peerInfo.m_desc);
if (rc != 0) {
rc = 0;
break;
}

if (event->enc_change.status == (BLE_HS_ERR_HCI_BASE + BLE_ERR_PINKEY_MISSING)) {
if (event->enc_change.status == BLE_HS_HCI_ERR(BLE_ERR_PINKEY_MISSING)) {
// Key is missing, try deleting.
ble_store_util_delete_peer(&peerInfo.m_desc.peer_id_addr);
// Attempt a retry if async secure failed.
Expand Down
13 changes: 8 additions & 5 deletions src/NimBLEServer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -335,12 +335,15 @@ bool NimBLEServer::start() {
*/
bool NimBLEServer::disconnect(uint16_t connHandle, uint8_t reason) const {
int rc = ble_gap_terminate(connHandle, reason);
if (rc != 0 && rc != BLE_HS_ENOTCONN && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_terminate failed: rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
return false;
switch (rc) {
case 0:
case BLE_HS_ENOTCONN:
case BLE_HS_EALREADY:
case BLE_HS_HCI_ERR(BLE_ERR_UNK_CONN_ID):
return true;
}

return true;
NIMBLE_LOGE(LOG_TAG, "ble_gap_terminate failed: rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
return false;
} // disconnect

/**
Expand Down
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