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gatt_client: ignore incoming events and att pdus over classic until outgoing connection is set-up

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This commit is contained in:
Matthias Ringwald 2024-03-06 17:15:11 +01:00
parent f05358500e
commit de5a18ca9a
1 changed files with 29 additions and 24 deletions
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53
src/ble/gatt_client.c
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@ -2135,30 +2135,33 @@ static void gatt_client_att_packet_handler(uint8_t packet_type, uint16_t handle,
case L2CAP_EVENT_CHANNEL_OPENED:
status = l2cap_event_channel_opened_get_status(packet);
gatt_client = gatt_client_get_context_for_l2cap_cid(l2cap_event_channel_opened_get_local_cid(packet));
btstack_assert(gatt_client != NULL);
con_handle = l2cap_event_channel_opened_get_handle(packet);
hci_connection = hci_connection_for_handle(con_handle);
if (status == L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_RESOURCES){
if ((hci_connection != NULL) && hci_connection->att_server.incoming_connection_request) {
log_info("Collision, retry in 100ms");
gatt_client->state = P_W2_L2CAP_CONNECT;
// set timer for retry
btstack_run_loop_set_timer(&gatt_client->gc_timeout, GATT_CLIENT_COLLISION_BACKOFF_MS);
btstack_run_loop_set_timer_handler(&gatt_client->gc_timeout, gatt_client_classic_retry);
btstack_run_loop_add_timer(&gatt_client->gc_timeout);
break;
if (gatt_client != NULL){
con_handle = l2cap_event_channel_opened_get_handle(packet);
hci_connection = hci_connection_for_handle(con_handle);
if (status == L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_RESOURCES){
if ((hci_connection != NULL) && hci_connection->att_server.incoming_connection_request) {
log_info("Collision, retry in 100ms");
gatt_client->state = P_W2_L2CAP_CONNECT;
// set timer for retry
btstack_run_loop_set_timer(&gatt_client->gc_timeout, GATT_CLIENT_COLLISION_BACKOFF_MS);
btstack_run_loop_set_timer_handler(&gatt_client->gc_timeout, gatt_client_classic_retry);
btstack_run_loop_add_timer(&gatt_client->gc_timeout);
break;
}
}
// if status != 0, gatt_client will be discarded
gatt_client->state = P_READY;
gatt_client->con_handle = l2cap_event_channel_opened_get_handle(packet);
gatt_client->mtu = l2cap_event_channel_opened_get_remote_mtu(packet);
gatt_client_classic_handle_connected(gatt_client, status);
}
// if status != 0, gatt_client will be discarded
gatt_client->state = P_READY;
gatt_client->con_handle = l2cap_event_channel_opened_get_handle(packet);
gatt_client->mtu = l2cap_event_channel_opened_get_remote_mtu(packet);
gatt_client_classic_handle_connected(gatt_client, status);
break;
case L2CAP_EVENT_CHANNEL_CLOSED:
gatt_client = gatt_client_get_context_for_l2cap_cid(l2cap_event_channel_closed_get_local_cid(packet));
// discard gatt client object
gatt_client_classic_handle_disconnected(gatt_client);
if (gatt_client != NULL){
// discard gatt client object
gatt_client_classic_handle_disconnected(gatt_client);
}
break;
#endif
case L2CAP_EVENT_CAN_SEND_NOW:
@ -2168,8 +2171,9 @@ static void gatt_client_att_packet_handler(uint8_t packet_type, uint16_t handle,
case ATT_EVENT_MTU_EXCHANGE_COMPLETE:
if (size < 6u) break;
gatt_client = gatt_client_get_context_for_handle(handle);
if (gatt_client == NULL) break;
gatt_client->mtu = little_endian_read_16(packet, 4);
if (gatt_client != NULL) {
gatt_client->mtu = little_endian_read_16(packet, 4);
}
break;
default:
break;
@ -2197,9 +2201,10 @@ static void gatt_client_att_packet_handler(uint8_t packet_type, uint16_t handle,
#ifdef ENABLE_GATT_OVER_CLASSIC
case L2CAP_DATA_PACKET:
gatt_client = gatt_client_get_context_for_l2cap_cid(handle);
btstack_assert(gatt_client != NULL);
gatt_client_handle_att_response(gatt_client, packet, size);
gatt_client_run();
if (gatt_client != NULL){
gatt_client_handle_att_response(gatt_client, packet, size);
gatt_client_run();
}
break;
#endif