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sm: extract sm_event_handle_classic_encryption_event

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Matthias Ringwald 2023-07-13 15:22:37 +02:00
parent 57ff474594
commit 599e89da88
1 changed files with 32 additions and 24 deletions
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56
src/ble/sm.c
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@ -3709,6 +3709,37 @@ static void sm_connection_init(sm_connection_t * sm_conn, hci_con_handle_t con_h
sm_conn->sm_engine_state = SM_GENERAL_IDLE; sm_conn->sm_engine_state = SM_GENERAL_IDLE;
} }
#ifdef ENABLE_CROSS_TRANSPORT_KEY_DERIVATION
static void sm_event_handle_classic_encryption_event(sm_connection_t * sm_conn, hci_con_handle_t con_handle){
// CTKD requires BR/EDR Secure Connection
if (sm_conn->sm_connection_encrypted != 2) return;
// prepare for pairing request
if (IS_RESPONDER(sm_conn->sm_role)){
sm_conn->sm_engine_state = SM_BR_EDR_RESPONDER_W4_PAIRING_REQUEST;
} else if (sm_conn->sm_pairing_requested){
// check if remote supports fixed channels
bool defer = true;
const hci_connection_t * hci_connection = hci_connection_for_handle(con_handle);
if (hci_connection->l2cap_state.information_state == L2CAP_INFORMATION_STATE_DONE){
// check if remote supports SMP over BR/EDR
if ((hci_connection->l2cap_state.fixed_channels_supported & (1 << L2CAP_CID_BR_EDR_SECURITY_MANAGER)) != 0){
log_info("CTKD: SM_BR_EDR_INITIATOR_SEND_PAIRING_REQUEST");
sm_conn->sm_engine_state = SM_BR_EDR_INITIATOR_SEND_PAIRING_REQUEST;
} else {
defer = false;
}
} else {
// wait for fixed channel info
log_info("CTKD: SM_BR_EDR_INITIATOR_W4_FIXED_CHANNEL_MASK");
sm_conn->sm_engine_state = SM_BR_EDR_INITIATOR_W4_FIXED_CHANNEL_MASK;
}
if (defer){
hci_dedicated_bonding_defer_disconnect(con_handle, true);
}
}
}
#endif
static void sm_event_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ static void sm_event_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel); // ok: there is no channel UNUSED(channel); // ok: there is no channel
@ -3972,30 +4003,7 @@ static void sm_event_packet_handler (uint8_t packet_type, uint16_t channel, uint
#ifdef ENABLE_CROSS_TRANSPORT_KEY_DERIVATION #ifdef ENABLE_CROSS_TRANSPORT_KEY_DERIVATION
case SM_BR_EDR_W4_ENCRYPTION_COMPLETE: case SM_BR_EDR_W4_ENCRYPTION_COMPLETE:
// CTKD requires BR/EDR Secure Connection sm_event_handle_classic_encryption_event(sm_conn, con_handle);
if (sm_conn->sm_connection_encrypted != 2) break;
// prepare for pairing request
if (IS_RESPONDER(sm_conn->sm_role)){
sm_conn->sm_engine_state = SM_BR_EDR_RESPONDER_W4_PAIRING_REQUEST;
} else if (sm_conn->sm_pairing_requested){
// check if remote supports fixed channels
bool defer = true;
const hci_connection_t * hci_connection = hci_connection_for_handle(con_handle);
if (hci_connection->l2cap_state.information_state == L2CAP_INFORMATION_STATE_DONE){
// check if remote supports SMP over BR/EDR
if ((hci_connection->l2cap_state.fixed_channels_supported & (1 << L2CAP_CID_BR_EDR_SECURITY_MANAGER)) != 0){
sm_conn->sm_engine_state = SM_BR_EDR_INITIATOR_SEND_PAIRING_REQUEST;
} else {
defer = false;
}
} else {
// wait for fixed channel info
sm_conn->sm_engine_state = SM_BR_EDR_INITIATOR_W4_FIXED_CHANNEL_MASK;
}
if (defer){
hci_dedicated_bonding_defer_disconnect(con_handle, true);
}
}
break; break;
#endif #endif
default: default: