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sm: start encryption as central if bonded

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This commit is contained in:
Matthias Ringwald 2018-05-12 12:23:39 +02:00
parent f697eb5c91
commit d4af1595c7
1 changed files with 12 additions and 4 deletions
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16
src/ble/sm.c
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@ -1114,6 +1114,7 @@ static void sm_address_resolution_handle_event(address_resolution_event_t event)
#ifdef ENABLE_LE_CENTRAL
sm_key_t ltk;
int have_ltk;
int pairing_need;
#endif
switch (mode){
case ADDRESS_RESOLUTION_GENERAL:
@ -1136,14 +1137,21 @@ static void sm_address_resolution_handle_event(address_resolution_event_t event)
#ifdef ENABLE_LE_CENTRAL
le_device_db_encryption_get(sm_connection->sm_le_db_index, NULL, NULL, ltk, NULL, NULL, NULL);
have_ltk = !sm_is_null_key(ltk);
log_info("central: bonding requested %u, remote security request %u, have ltk %u", sm_connection->sm_pairing_requested, sm_connection->sm_security_request_received, have_ltk);
if (!sm_connection->sm_pairing_requested && !sm_connection->sm_security_request_received) break;
pairing_need = sm_connection->sm_pairing_requested || sm_connection->sm_security_request_received;
log_info("central: pairing request local %u, remote %u => action %u. have_ltk %u",
sm_connection->sm_pairing_requested, sm_connection->sm_security_request_received, pairing_need, have_ltk);
// reset requests
sm_connection->sm_security_request_received = 0;
sm_connection->sm_pairing_requested = 0;
if (!sm_is_null_key(ltk)){
// have ltk -> start encryption
if (have_ltk){
sm_connection->sm_engine_state = SM_INITIATOR_PH0_HAS_LTK;
} else {
break;
}
// pairint_request -> send pairing request
if (pairing_need){
sm_connection->sm_engine_state = SM_INITIATOR_PH1_W2_SEND_PAIRING_REQUEST;
break;
}
#endif
break;