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sm: start pairing as Central for already encrypted connection on Slave Security Request

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This commit is contained in:
Matthias Ringwald 2021-05-10 11:44:16 +02:00
parent 496bb88446
commit 8549a61e0d
2 changed files with 4 additions and 3 deletions
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1
CHANGELOG.md
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@ -74,6 +74,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
- GATT Client: Use ATT_READ_REQUEST for first blob of Read Long Characteristic and Read Long Characteristic Descriptor
- GATT Server: Allow ATT Read Callback to return custom ATT Error Code
- HID: Move `src/classic/hid.h` into `src` and prefix with `btstack_` to use it with BLE and avoid name clashes
- SM: start pairing as Central for already encrypted connection on Slave Security Request
## Release v1.3.2

6
src/ble/sm.c
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@ -3864,9 +3864,9 @@ static void sm_pdu_handler(uint8_t packet_type, hci_con_handle_t con_handle, uin
case IRK_LOOKUP_SUCCEEDED:
le_device_db_encryption_get(sm_conn->sm_le_db_index, NULL, NULL, ltk, NULL, NULL, NULL, NULL);
have_ltk = !sm_is_null_key(ltk);
log_info("central: security request - have_ltk %u", have_ltk);
if (have_ltk){
// start re-encrypt
log_info("central: security request - have_ltk %u, encryption %u", have_ltk, sm_conn->sm_connection_encrypted);
if (have_ltk && (sm_conn->sm_connection_encrypted == 0)){
// start re-encrypt if we have LTK and the connection is not already encrypted
sm_conn->sm_engine_state = SM_INITIATOR_PH4_HAS_LTK;
} else {
// start pairing