/* * Copyright (C) 2009-2012 by Matthias Ringwald * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at btstack@ringwald.ch * */ /* * daemon.c * * Created by Matthias Ringwald on 7/1/09. * * BTstack background daemon * */ #include "btstack-config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include "debug.h" #include "hci.h" #include "hci_dump.h" #include "hci_transport.h" #include "l2cap.h" #include "rfcomm.h" #include "sdp.h" #include "sdp_parser.h" #include "sdp_client.h" #include "sdp_query_util.h" #include "sdp_query_rfcomm.h" #include "socket_connection.h" #include "gatt_client.h" #ifdef USE_BLUETOOL #include #include "bt_control_iphone.h" #include #endif #ifdef USE_SPRINGBOARD #include "platform_iphone.h" #endif #ifdef HAVE_TRANSPORT_USB #include #endif #ifndef BTSTACK_LOG_FILE #define BTSTACK_LOG_FILE "/tmp/hci_dump.pklg" #endif // use logger: format HCI_DUMP_PACKETLOGGER, HCI_DUMP_BLUEZ or HCI_DUMP_STDOUT #ifndef BTSTACK_LOG_TYPE #define BTSTACK_LOG_TYPE HCI_DUMP_PACKETLOGGER #endif #define DAEMON_NO_ACTIVE_CLIENT_TIMEOUT 10000 typedef struct { // linked list - assert: first field linked_item_t item; // connection connection_t * connection; // power mode HCI_POWER_MODE power_mode; // discoverable uint8_t discoverable; } client_state_t; // MARK: prototypes static void handle_sdp_rfcomm_service_result(sdp_query_event_t * event, void * context); static void handle_sdp_client_query_result(sdp_query_event_t * event); static void dummy_bluetooth_status_handler(BLUETOOTH_STATE state); static client_state_t * client_for_connection(connection_t *connection); static int clients_require_power_on(void); static int clients_require_discoverable(void); static void clients_clear_power_request(void); static void start_power_off_timer(void); static void stop_power_off_timer(void); // MARK: globals static hci_transport_t * transport; static hci_uart_config_t config; static timer_source_t timeout; static uint8_t timeout_active = 0; static int power_management_sleep = 0; static linked_list_t clients = NULL; // list of connected clients static void (*bluetooth_status_handler)(BLUETOOTH_STATE state) = dummy_bluetooth_status_handler; static int global_enable = 0; static remote_device_db_t const * remote_device_db = NULL; static int rfcomm_channel_generator = 1; static uint8_t attribute_value[1000]; static const int attribute_value_buffer_size = sizeof(attribute_value); static uint8_t serviceSearchPattern[200]; static uint8_t attributeIDList[50]; static int loggingEnabled; static void dummy_bluetooth_status_handler(BLUETOOTH_STATE state){ log_info("Bluetooth status: %u\n", state); }; static void daemon_no_connections_timeout(struct timer *ts){ if (clients_require_power_on()) return; // false alarm :) log_info("No active client connection for %u seconds -> POWER OFF\n", DAEMON_NO_ACTIVE_CLIENT_TIMEOUT/1000); hci_power_control(HCI_POWER_OFF); } #define ATT_MAX_LONG_ATTRIBUTE_SIZE 512 #ifdef HAVE_BLE #define SERVICE_LENGTH 20 #define CHARACTERISTIC_LENGTH 24 #define CHARACTERISTIC_DESCRIPTOR_LENGTH 18 // ATT_MTU - 1 #define ATT_MAX_ATTRIBUTE_SIZE 22 typedef struct gatt_client_helper { uint16_t characteristic_length; } gatt_client_helper_t; static gatt_client_t * daemon_provide_gatt_client_context_for_handle(uint16_t handle){ gatt_client_t *context; context = get_gatt_client_context_for_handle(handle); if (context) return context; context = (gatt_client_t*)malloc(sizeof(gatt_client_t) + sizeof(gatt_client_helper_t) + ATT_MAX_LONG_ATTRIBUTE_SIZE); if (!context) return NULL; gatt_client_start(context, handle); return context; } gatt_client_helper_t * daemon_get_gatt_helper(gatt_client_t * context){ return (gatt_client_helper_t*) (((uint8_t *) context) + sizeof(gatt_client_t)); } uint8_t * daemon_get_data_buffer(gatt_client_t *context) { return ((uint8_t *) context) + sizeof(gatt_client_t) + sizeof(gatt_client_helper_t); } gatt_client_helper_t * daemon_get_gatt_client_helper(gatt_client_t *context) { return (gatt_client_helper_t *) (((uint8_t *) context) + sizeof(gatt_client_t)); } static void send_gatt_query_complete(connection_t * connection, uint16_t handle, uint8_t status){ // @format H1 uint8_t event[5]; event[0] = GATT_QUERY_COMPLETE; event[1] = 3; bt_store_16(event, 2, handle); event[4] = status; socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); } gatt_client_t * daemon_prepare_gatt_client_context(connection_t *connection, uint8_t *packet) { hci_con_handle_t handle = READ_BT_16(packet, 3); gatt_client_t *context = daemon_provide_gatt_client_context_for_handle(handle); if (!context) { send_gatt_query_complete(connection, handle, BTSTACK_MEMORY_ALLOC_FAILED); return NULL; } // check state if (!gatt_client_is_ready(context)){ send_gatt_query_complete(connection, handle, GATT_CLIENT_BUSY); return NULL; } context->context = connection; return context; } // (de)serialize structs from/to HCI commands/events void daemon_gatt_deserialize_service(uint8_t *packet, int offset, le_service_t *service){ service->start_group_handle = READ_BT_16(packet, offset); service->end_group_handle = READ_BT_16(packet, offset + 2); swap128(&packet[offset + 4], service->uuid128); } void daemon_gatt_serialize_service(le_service_t * service, uint8_t * event, int offset){ bt_store_16(event, offset, service->start_group_handle); bt_store_16(event, offset+2, service->end_group_handle); swap128(service->uuid128, &event[offset + 4]); } void daemon_gatt_deserialize_characteristic(uint8_t * packet, int offset, le_characteristic_t * characteristic){ characteristic->start_handle = READ_BT_16(packet, offset); characteristic->value_handle = READ_BT_16(packet, offset + 2); characteristic->end_handle = READ_BT_16(packet, offset + 4); characteristic->properties = READ_BT_16(packet, offset + 6); characteristic->uuid16 = READ_BT_16(packet, offset + 8); swap128(&packet[offset+10], characteristic->uuid128); } void daemon_gatt_serialize_characteristic(le_characteristic_t * characteristic, uint8_t * event, int offset){ bt_store_16(event, offset, characteristic->start_handle); bt_store_16(event, offset+2, characteristic->value_handle); bt_store_16(event, offset+4, characteristic->end_handle); bt_store_16(event, offset+6, characteristic->properties); swap128(characteristic->uuid128, &event[offset+8]); } void daemon_gatt_deserialize_characteristic_descriptor(uint8_t * packet, int offset, le_characteristic_descriptor_t * descriptor){ descriptor->handle = READ_BT_16(packet, offset); swap128(&packet[offset+2], descriptor->uuid128); } void daemon_gatt_serialize_characteristic_descriptor(le_characteristic_descriptor_t * characteristic_descriptor, uint8_t * event, int offset){ bt_store_16(event, offset, characteristic_descriptor->handle); swap128(characteristic_descriptor->uuid128, &event[offset+2]); } // setup events void daemon_setup_service_event(le_event_t *le_event, uint8_t* event) { le_service_event_t * service_event = (le_service_event_t *) le_event; event[0] = le_event->type; event[1] = SERVICE_LENGTH; bt_store_16(event, 2, service_event->client->handle); daemon_gatt_serialize_service(&service_event->service, event, 4); } void daemon_gatt_setup_characteristic_event(le_event_t *le_event, uint8_t* event) { le_characteristic_event_t * characteristic_event = (le_characteristic_event_t *) le_event; event[0] = le_event->type; event[1] = CHARACTERISTIC_LENGTH; bt_store_16(event, 2, characteristic_event->client->handle); daemon_gatt_serialize_characteristic(&characteristic_event->characteristic, event, 4); } void daemon_setup_characteristic_descriptor_event(le_event_t *le_event, uint8_t* event) { le_characteristic_descriptor_event_t * descriptor_event = (le_characteristic_descriptor_event_t *) le_event; event[0] = le_event->type; event[1] = CHARACTERISTIC_DESCRIPTOR_LENGTH; bt_store_16(event, 2, descriptor_event->client->handle); daemon_gatt_serialize_characteristic_descriptor(&descriptor_event->characteristic_descriptor, event, 4); } void daemon_setup_long_characteristic_value_event(uint8_t* event, uint16_t connection_handle, uint16_t value_handle, uint16_t data_length, uint8_t * data) { event[0] = GATT_LONG_CHARACTERISTIC_VALUE_QUERY_RESULT; event[1] = 2 + (2 + 2 + data_length); bt_store_16(event, 2, connection_handle); bt_store_16(event, 4, value_handle); bt_store_16(event, 6, data_length); memcpy(&event[8], data, data_length); } void daemon_setup_characteristic_value_event(le_event_t *le_event, uint8_t* event) { le_characteristic_value_event_t * cvalue_event = (le_characteristic_value_event_t *) le_event; event[0] = le_event->type; event[1] = 2 + (2 + 2 + cvalue_event->blob_length); bt_store_16(event, 2, cvalue_event->client->handle); bt_store_16(event, 4, cvalue_event->value_handle); bt_store_16(event, 6, cvalue_event->blob_length); memcpy(&event[8], cvalue_event->blob, cvalue_event->blob_length); } #endif static int btstack_command_handler(connection_t *connection, uint8_t *packet, uint16_t size){ bd_addr_t addr; bd_addr_type_t addr_type; hci_con_handle_t handle; uint16_t cid; uint16_t psm; uint16_t service_channel; uint16_t mtu; uint8_t reason; uint8_t rfcomm_channel; uint8_t rfcomm_credits; uint32_t service_record_handle; client_state_t *client; #if defined(HAVE_MALLOC) && defined(HAVE_BLE) gatt_client_t * context; uint8_t uuid128[16]; le_service_t service; le_characteristic_t characteristic; le_characteristic_descriptor_t descriptor; uint16_t data_length; uint8_t * data; #endif uint16_t serviceSearchPatternLen; uint16_t attributeIDListLen; // BTstack internal commands - 16 Bit OpCode, 8 Bit ParamLen, Params... switch (READ_CMD_OCF(packet)){ case BTSTACK_GET_STATE: log_info("BTSTACK_GET_STATE"); hci_emit_state(); break; case BTSTACK_SET_POWER_MODE: log_info("BTSTACK_SET_POWER_MODE %u", packet[3]); // track client power requests client = client_for_connection(connection); if (!client) break; client->power_mode = packet[3]; // handle merged state if (!clients_require_power_on()){ start_power_off_timer(); } else if (!power_management_sleep) { stop_power_off_timer(); hci_power_control(HCI_POWER_ON); } break; case BTSTACK_GET_VERSION: log_info("BTSTACK_GET_VERSION"); hci_emit_btstack_version(); break; #ifdef USE_BLUETOOL case BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED: log_info("BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED %u", packet[3]); iphone_system_bt_set_enabled(packet[3]); hci_emit_system_bluetooth_enabled(iphone_system_bt_enabled()); break; case BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED: log_info("BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED"); hci_emit_system_bluetooth_enabled(iphone_system_bt_enabled()); break; #else case BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED: case BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED: hci_emit_system_bluetooth_enabled(0); break; #endif case BTSTACK_SET_DISCOVERABLE: log_info("BTSTACK_SET_DISCOVERABLE discoverable %u)", packet[3]); // track client discoverable requests client = client_for_connection(connection); if (!client) break; client->discoverable = packet[3]; // merge state hci_discoverable_control(clients_require_discoverable()); break; case BTSTACK_SET_BLUETOOTH_ENABLED: log_info("BTSTACK_SET_BLUETOOTH_ENABLED: %u\n", packet[3]); if (packet[3]) { // global enable global_enable = 1; hci_power_control(HCI_POWER_ON); } else { global_enable = 0; clients_clear_power_request(); hci_power_control(HCI_POWER_OFF); } break; case L2CAP_CREATE_CHANNEL_MTU: bt_flip_addr(addr, &packet[3]); psm = READ_BT_16(packet, 9); mtu = READ_BT_16(packet, 11); l2cap_create_channel_internal( connection, NULL, addr, psm, mtu); break; case L2CAP_CREATE_CHANNEL: bt_flip_addr(addr, &packet[3]); psm = READ_BT_16(packet, 9); l2cap_create_channel_internal( connection, NULL, addr, psm, 150); // until r865 break; case L2CAP_DISCONNECT: cid = READ_BT_16(packet, 3); reason = packet[5]; l2cap_disconnect_internal(cid, reason); break; case L2CAP_REGISTER_SERVICE: psm = READ_BT_16(packet, 3); mtu = READ_BT_16(packet, 5); l2cap_register_service_internal(connection, NULL, psm, mtu, LEVEL_0); break; case L2CAP_UNREGISTER_SERVICE: psm = READ_BT_16(packet, 3); l2cap_unregister_service_internal(connection, psm); break; case L2CAP_ACCEPT_CONNECTION: cid = READ_BT_16(packet, 3); l2cap_accept_connection_internal(cid); break; case L2CAP_DECLINE_CONNECTION: cid = READ_BT_16(packet, 3); reason = packet[7]; l2cap_decline_connection_internal(cid, reason); break; case RFCOMM_CREATE_CHANNEL: bt_flip_addr(addr, &packet[3]); rfcomm_channel = packet[9]; rfcomm_create_channel_internal( connection, &addr, rfcomm_channel ); break; case RFCOMM_CREATE_CHANNEL_WITH_CREDITS: bt_flip_addr(addr, &packet[3]); rfcomm_channel = packet[9]; rfcomm_credits = packet[10]; rfcomm_create_channel_with_initial_credits_internal( connection, &addr, rfcomm_channel, rfcomm_credits ); break; case RFCOMM_DISCONNECT: cid = READ_BT_16(packet, 3); reason = packet[5]; rfcomm_disconnect_internal(cid); break; case RFCOMM_REGISTER_SERVICE: rfcomm_channel = packet[3]; mtu = READ_BT_16(packet, 4); rfcomm_register_service_internal(connection, rfcomm_channel, mtu); break; case RFCOMM_REGISTER_SERVICE_WITH_CREDITS: rfcomm_channel = packet[3]; mtu = READ_BT_16(packet, 4); rfcomm_credits = packet[6]; rfcomm_register_service_with_initial_credits_internal(connection, rfcomm_channel, mtu, rfcomm_credits); break; case RFCOMM_UNREGISTER_SERVICE: service_channel = READ_BT_16(packet, 3); rfcomm_unregister_service_internal(service_channel); break; case RFCOMM_ACCEPT_CONNECTION: cid = READ_BT_16(packet, 3); rfcomm_accept_connection_internal(cid); break; case RFCOMM_DECLINE_CONNECTION: cid = READ_BT_16(packet, 3); reason = packet[7]; rfcomm_decline_connection_internal(cid); break; case RFCOMM_GRANT_CREDITS: cid = READ_BT_16(packet, 3); rfcomm_credits = packet[5]; rfcomm_grant_credits(cid, rfcomm_credits); break; case RFCOMM_PERSISTENT_CHANNEL: { if (remote_device_db) { // enforce \0 packet[3+248] = 0; rfcomm_channel = remote_device_db->persistent_rfcomm_channel((char*)&packet[3]); } else { // NOTE: hack for non-iOS platforms rfcomm_channel = rfcomm_channel_generator++; } log_info("RFCOMM_EVENT_PERSISTENT_CHANNEL %u", rfcomm_channel); uint8_t event[4]; event[0] = RFCOMM_EVENT_PERSISTENT_CHANNEL; event[1] = sizeof(event) - 2; event[2] = 0; event[3] = rfcomm_channel; hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, (uint8_t *) event, sizeof(event)); break; } case SDP_REGISTER_SERVICE_RECORD: log_info("SDP_REGISTER_SERVICE_RECORD size %u\n", size); sdp_register_service_internal(connection, &packet[3]); break; case SDP_UNREGISTER_SERVICE_RECORD: service_record_handle = READ_BT_32(packet, 3); log_info("SDP_UNREGISTER_SERVICE_RECORD handle 0x%x ", service_record_handle); sdp_unregister_service_internal(connection, service_record_handle); break; case SDP_CLIENT_QUERY_RFCOMM_SERVICES: bt_flip_addr(addr, &packet[3]); serviceSearchPatternLen = de_get_len(&packet[9]); memcpy(serviceSearchPattern, &packet[9], serviceSearchPatternLen); sdp_query_rfcomm_register_callback(handle_sdp_rfcomm_service_result, connection); sdp_query_rfcomm_channel_and_name_for_search_pattern(addr, serviceSearchPattern); break; case SDP_CLIENT_QUERY_SERVICES: bt_flip_addr(addr, &packet[3]); sdp_parser_init(); sdp_parser_register_callback(handle_sdp_client_query_result); serviceSearchPatternLen = de_get_len(&packet[9]); memcpy(serviceSearchPattern, &packet[9], serviceSearchPatternLen); attributeIDListLen = de_get_len(&packet[9+serviceSearchPatternLen]); memcpy(attributeIDList, &packet[9+serviceSearchPatternLen], attributeIDListLen); sdp_client_query(addr, (uint8_t*)&serviceSearchPattern[0], (uint8_t*)&attributeIDList[0]); // sdp_general_query_for_uuid(addr, 0x1002); break; case GAP_LE_SCAN_START: le_central_start_scan(); break; case GAP_LE_SCAN_STOP: le_central_stop_scan(); break; case GAP_LE_CONNECT: bt_flip_addr(addr, &packet[4]); addr_type = packet[3]; le_central_connect(&addr, addr_type); break; case GAP_LE_CONNECT_CANCEL: le_central_connect_cancel(); break; case GAP_DISCONNECT: handle = READ_BT_16(packet, 3); gap_disconnect(handle); break; #if defined(HAVE_MALLOC) && defined(HAVE_BLE) case GATT_DISCOVER_ALL_PRIMARY_SERVICES: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; gatt_client_discover_primary_services(context); break; case GATT_DISCOVER_PRIMARY_SERVICES_BY_UUID16: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; gatt_client_discover_primary_services_by_uuid16(context, READ_BT_16(packet, 5)); break; case GATT_DISCOVER_PRIMARY_SERVICES_BY_UUID128: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; swap128(&packet[5], uuid128); gatt_client_discover_primary_services_by_uuid128(context, uuid128); break; case GATT_FIND_INCLUDED_SERVICES_FOR_SERVICE: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_service(packet, 5, &service); gatt_client_find_included_services_for_service(context, &service); break; case GATT_DISCOVER_CHARACTERISTICS_FOR_SERVICE: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_service(packet, 5, &service); gatt_client_discover_characteristics_for_service(context, &service); break; case GATT_DISCOVER_CHARACTERISTICS_FOR_SERVICE_BY_UUID128: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_service(packet, 5, &service); swap128(&packet[5 + SERVICE_LENGTH], uuid128); gatt_client_discover_characteristics_for_service_by_uuid128(context, &service, uuid128); break; case GATT_DISCOVER_CHARACTERISTIC_DESCRIPTORS: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); gatt_client_discover_characteristic_descriptors(context, &characteristic); break; case GATT_READ_VALUE_OF_CHARACTERISTIC: // context = daemon_prepare_gatt_client_context(connection, packet, GATT_CHARACTERISTIC_VALUE_QUERY_RESULT); context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); gatt_client_read_value_of_characteristic(context, &characteristic); break; case GATT_READ_LONG_VALUE_OF_CHARACTERISTIC: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); gatt_client_read_long_value_of_characteristic(context, &characteristic); break; case GATT_WRITE_VALUE_OF_CHARACTERISTIC_WITHOUT_RESPONSE: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); data_length = READ_BT_16(packet, 5 + CHARACTERISTIC_LENGTH); data = daemon_get_data_buffer(context); memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); gatt_client_write_value_of_characteristic_without_response(context, characteristic.value_handle, data_length, data); break; case GATT_WRITE_VALUE_OF_CHARACTERISTIC: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); data_length = READ_BT_16(packet, 5 + CHARACTERISTIC_LENGTH); data = daemon_get_data_buffer(context); memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); gatt_client_write_value_of_characteristic(context, characteristic.value_handle, data_length, data); break; case GATT_WRITE_LONG_VALUE_OF_CHARACTERISTIC: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); data_length = READ_BT_16(packet, 5 + CHARACTERISTIC_LENGTH); data = daemon_get_data_buffer(context); memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); gatt_client_write_long_value_of_characteristic(context, characteristic.value_handle, data_length, data); break; case GATT_RELIABLE_WRITE_LONG_VALUE_OF_CHARACTERISTIC: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); data_length = READ_BT_16(packet, 5 + CHARACTERISTIC_LENGTH); data = daemon_get_data_buffer(context); memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); gatt_client_write_long_value_of_characteristic(context, characteristic.value_handle, data_length, data); break; case GATT_READ_CHARACTERISTIC_DESCRIPTOR: // context = daemon_prepare_gatt_client_context(connection, packet, GATT_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT); context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic_descriptor(packet, 5, &descriptor); gatt_client_read_characteristic_descriptor(context, &descriptor); break; case GATT_READ_LONG_CHARACTERISTIC_DESCRIPTOR: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic_descriptor(packet, 5, &descriptor); gatt_client_read_long_characteristic_descriptor(context, &descriptor); break; case GATT_WRITE_CHARACTERISTIC_DESCRIPTOR: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic_descriptor(packet, 5, &descriptor); data = daemon_get_data_buffer(context); data_length = READ_BT_16(packet, 5 + CHARACTERISTIC_DESCRIPTOR_LENGTH); gatt_client_write_characteristic_descriptor(context, &descriptor, data_length, data); break; case GATT_WRITE_LONG_CHARACTERISTIC_DESCRIPTOR: context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic_descriptor(packet, 5, &descriptor); data = daemon_get_data_buffer(context); data_length = READ_BT_16(packet, 5 + CHARACTERISTIC_DESCRIPTOR_LENGTH); gatt_client_write_long_characteristic_descriptor(context, &descriptor, data_length, data); break; case GATT_WRITE_CLIENT_CHARACTERISTIC_CONFIGURATION:{ uint16_t configuration = READ_BT_16(packet, 5 + CHARACTERISTIC_LENGTH); context = daemon_prepare_gatt_client_context(connection, packet); if (!context) break; daemon_gatt_deserialize_characteristic(packet, 5, &characteristic); gatt_client_write_client_characteristic_configuration(context, &characteristic, configuration); break; } #endif default: log_error("Error: command %u not implemented\n:", READ_CMD_OCF(packet)); break; } // verbose log info on command before dumped command unknown to PacketLogger or Wireshark hci_dump_packet( HCI_COMMAND_DATA_PACKET, 1, packet, size); return 0; } static int daemon_client_handler(connection_t *connection, uint16_t packet_type, uint16_t channel, uint8_t *data, uint16_t length){ int err = 0; client_state_t * client; switch (packet_type){ case HCI_COMMAND_DATA_PACKET: if (READ_CMD_OGF(data) != OGF_BTSTACK) { // HCI Command hci_send_cmd_packet(data, length); } else { // BTstack command btstack_command_handler(connection, data, length); } break; case HCI_ACL_DATA_PACKET: err = hci_send_acl_packet(data, length); break; case L2CAP_DATA_PACKET: // process l2cap packet... err = l2cap_send_internal(channel, data, length); if (err == BTSTACK_ACL_BUFFERS_FULL) { l2cap_block_new_credits(1); } break; case RFCOMM_DATA_PACKET: // process l2cap packet... err = rfcomm_send_internal(channel, data, length); break; case DAEMON_EVENT_PACKET: switch (data[0]) { case DAEMON_EVENT_CONNECTION_OPENED: log_info("DAEMON_EVENT_CONNECTION_OPENED %p\n",connection); client = malloc(sizeof(client_state_t)); if (!client) break; // fail client->connection = connection; client->power_mode = HCI_POWER_OFF; client->discoverable = 0; linked_list_add(&clients, (linked_item_t *) client); break; case DAEMON_EVENT_CONNECTION_CLOSED: log_info("DAEMON_EVENT_CONNECTION_CLOSED %p\n",connection); sdp_unregister_services_for_connection(connection); rfcomm_close_connection(connection); l2cap_close_connection(connection); #ifdef HAVE_BLE // NOTE: experimental - disconnect all LE connections where GATT Client was used gatt_client_disconnect_connection(connection); #endif client = client_for_connection(connection); if (!client) break; linked_list_remove(&clients, (linked_item_t *) client); free(client); // update discoverable mode hci_discoverable_control(clients_require_discoverable()); // start power off, if last active client if (!clients_require_power_on()){ start_power_off_timer(); } break; case DAEMON_NR_CONNECTIONS_CHANGED: log_info("Nr Connections changed, new %u\n",data[1]); break; default: break; } break; } if (err) { log_info("Daemon Handler: err %d\n", err); } return err; } static void daemon_set_logging_enabled(int enabled){ if (enabled && !loggingEnabled){ hci_dump_open(BTSTACK_LOG_FILE, BTSTACK_LOG_TYPE); } if (!enabled && loggingEnabled){ hci_dump_close(); } loggingEnabled = enabled; } // local cache used to manage UI status static HCI_STATE hci_state = HCI_STATE_OFF; static int num_connections = 0; static void update_ui_status(void){ if (hci_state != HCI_STATE_WORKING) { bluetooth_status_handler(BLUETOOTH_OFF); } else { if (num_connections) { bluetooth_status_handler(BLUETOOTH_ACTIVE); } else { bluetooth_status_handler(BLUETOOTH_ON); } } } #ifdef USE_SPRINGBOARD static void preferences_changed_callback(void){ int logging = platform_iphone_logging_enabled(); log_info("Logging enabled: %u\n", logging); daemon_set_logging_enabled(logging); } #endif static void deamon_status_event_handler(uint8_t *packet, uint16_t size){ uint8_t update_status = 0; // handle state event switch (packet[0]) { case BTSTACK_EVENT_STATE: hci_state = packet[2]; log_info("New state: %u\n", hci_state); update_status = 1; break; case BTSTACK_EVENT_NR_CONNECTIONS_CHANGED: num_connections = packet[2]; log_info("New nr connections: %u\n", num_connections); update_status = 1; break; default: break; } // choose full bluetooth state if (update_status) { update_ui_status(); } } static void daemon_retry_parked(void){ // socket_connection_retry_parked is not reentrant static int retry_mutex = 0; // lock mutex if (retry_mutex) return; retry_mutex = 1; // ... try sending again socket_connection_retry_parked(); if (!socket_connection_has_parked_connections()){ l2cap_block_new_credits(0); } // unlock mutex retry_mutex = 0; } static void daemon_packet_handler(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ switch (packet_type) { case HCI_EVENT_PACKET: deamon_status_event_handler(packet, size); switch (packet[0]){ case HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS: // ACL buffer freed... daemon_retry_parked(); // no need to tell clients return; case RFCOMM_EVENT_CREDITS: // RFCOMM CREDITS received... daemon_retry_parked(); break; #if defined(HAVE_BLE) && defined(HAVE_MALLOC) case HCI_EVENT_DISCONNECTION_COMPLETE:{ uint16_t handle = READ_BT_16(packet, 3); gatt_client_t *context = get_gatt_client_context_for_handle(handle); if (!context) break; gatt_client_stop(context); free(context); break; } #endif default: break; } case DAEMON_EVENT_PACKET: switch (packet[0]){ case DAEMON_EVENT_NEW_RFCOMM_CREDITS: daemon_retry_parked(); break; default: break; } default: break; } if (connection) { socket_connection_send_packet(connection, packet_type, channel, packet, size); } else { socket_connection_send_packet_all(packet_type, channel, packet, size); } } static void handle_sdp_rfcomm_service_result(sdp_query_event_t * rfcomm_event, void * context){ switch (rfcomm_event->type){ case SDP_QUERY_RFCOMM_SERVICE: { sdp_query_rfcomm_service_event_t * service_event = (sdp_query_rfcomm_service_event_t*) rfcomm_event; int name_len = (int)strlen((const char*)service_event); int event_len = 3 + name_len; uint8_t event[event_len]; event[0] = rfcomm_event->type; event[1] = 1 + name_len; event[2] = service_event->channel_nr; memcpy(&event[3], service_event->service_name, name_len); hci_dump_packet(HCI_EVENT_PACKET, 0, event, event_len); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, event_len); break; } case SDP_QUERY_COMPLETE: { sdp_query_complete_event_t * complete_event = (sdp_query_complete_event_t*) rfcomm_event; uint8_t event[] = { rfcomm_event->type, 1, complete_event->status}; hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, sizeof(event)); break; } } } static void sdp_client_assert_buffer(int size){ if (size > attribute_value_buffer_size){ log_error("SDP attribute value buffer size exceeded: available %d, required %d", attribute_value_buffer_size, size); } } // define new packet type SDP_CLIENT_PACKET static void handle_sdp_client_query_result(sdp_query_event_t * event){ sdp_query_attribute_value_event_t * ve; sdp_query_complete_event_t * complete_event; switch (event->type){ case SDP_QUERY_ATTRIBUTE_VALUE: ve = (sdp_query_attribute_value_event_t*) event; sdp_client_assert_buffer(ve->attribute_length); attribute_value[ve->data_offset] = ve->data; if ((uint16_t)(ve->data_offset+1) == ve->attribute_length){ hexdump(attribute_value, ve->attribute_length); int event_len = 1 + 3 * 2 + ve->attribute_length; uint8_t event[event_len]; event[0] = SDP_QUERY_ATTRIBUTE_VALUE; event[1] = ve->record_id; event[3] = ve->attribute_id; event[5] = ve->attribute_length; memcpy(&event[7], attribute_value, ve->attribute_length); hci_dump_packet(SDP_CLIENT_PACKET, 0, event, event_len); socket_connection_send_packet(NULL, SDP_CLIENT_PACKET, 0, event, event_len); } break; case SDP_QUERY_COMPLETE: complete_event = (sdp_query_complete_event_t*) event; uint8_t event[] = { SDP_QUERY_COMPLETE, 1, complete_event->status}; hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(NULL, HCI_EVENT_PACKET, 0, event, sizeof(event)); break; } } static void power_notification_callback(POWER_NOTIFICATION_t notification){ switch (notification) { case POWER_WILL_SLEEP: // let's sleep power_management_sleep = 1; hci_power_control(HCI_POWER_SLEEP); break; case POWER_WILL_WAKE_UP: // assume that all clients use Bluetooth -> if connection, start Bluetooth power_management_sleep = 0; if (clients_require_power_on()) { hci_power_control(HCI_POWER_ON); } break; default: break; } } static void daemon_sigint_handler(int param){ #ifdef USE_BLUETOOL // notify daemons notify_post("ch.ringwald.btstack.stopped"); #endif log_info(" <= SIGINT received, shutting down..\n"); hci_power_control( HCI_POWER_OFF); hci_close(); log_info("Good bye, see you.\n"); exit(0); } // MARK: manage power off timer #define USE_POWER_OFF_TIMER static void stop_power_off_timer(void){ #ifdef USE_POWER_OFF_TIMER if (timeout_active) { run_loop_remove_timer(&timeout); timeout_active = 0; } #endif } static void start_power_off_timer(void){ #ifdef USE_POWER_OFF_TIMER stop_power_off_timer(); run_loop_set_timer(&timeout, DAEMON_NO_ACTIVE_CLIENT_TIMEOUT); run_loop_add_timer(&timeout); timeout_active = 1; #else hci_power_control(HCI_POWER_OFF); #endif } // MARK: manage list of clients static client_state_t * client_for_connection(connection_t *connection) { linked_item_t *it; for (it = (linked_item_t *) clients; it ; it = it->next){ client_state_t * client_state = (client_state_t *) it; if (client_state->connection == connection) { return client_state; } } return NULL; } static void clients_clear_power_request(void){ linked_item_t *it; for (it = (linked_item_t *) clients; it ; it = it->next){ client_state_t * client_state = (client_state_t *) it; client_state->power_mode = HCI_POWER_OFF; } } static int clients_require_power_on(void){ if (global_enable) return 1; linked_item_t *it; for (it = (linked_item_t *) clients; it ; it = it->next){ client_state_t * client_state = (client_state_t *) it; if (client_state->power_mode == HCI_POWER_ON) { return 1; } } return 0; } static int clients_require_discoverable(void){ linked_item_t *it; for (it = (linked_item_t *) clients; it ; it = it->next){ client_state_t * client_state = (client_state_t *) it; if (client_state->discoverable) { return 1; } } return 0; } static void usage(const char * name) { printf("%s, BTstack background daemon\n", name); printf("usage: %s [--help] [--tcp port]\n", name); printf(" --help display this usage\n"); printf(" --tcp use TCP server on port %u\n", BTSTACK_PORT); printf("Without the --tcp option, BTstack daemon is listening on unix domain socket %s\n\n", BTSTACK_UNIX); } #ifdef USE_BLUETOOL static void * run_loop_thread(void *context){ run_loop_execute(); return NULL; } #endif #ifdef HAVE_BLE static void handle_gatt_client_event(le_event_t * le_event){ connection_t * context = (connection_t *)le_event->client->context; gatt_complete_event_t * complete_event = (gatt_complete_event_t *) le_event; #if defined(HAVE_MALLOC) uint8_t * data; gatt_client_helper_t * gatt_client_helper; uint8_t gatt_chunk = 0; #endif switch(le_event->type){ case GATT_SERVICE_QUERY_RESULT: case GATT_INCLUDED_SERVICE_QUERY_RESULT:{ uint8_t event[4 + SERVICE_LENGTH]; daemon_setup_service_event(le_event, event); hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, sizeof(event)); break; } case GATT_CHARACTERISTIC_QUERY_RESULT:{ uint8_t event[4 + CHARACTERISTIC_LENGTH]; daemon_gatt_setup_characteristic_event(le_event, event); hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, sizeof(event)); break; } case GATT_ALL_CHARACTERISTIC_DESCRIPTORS_QUERY_RESULT: case GATT_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT: case GATT_LONG_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT:{ uint8_t event[4 + CHARACTERISTIC_DESCRIPTOR_LENGTH]; daemon_setup_characteristic_descriptor_event(le_event, event); hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, sizeof(event)); break; } case GATT_CHARACTERISTIC_VALUE_QUERY_RESULT: { uint8_t event[4 + 2 + 1 + ATT_MAX_ATTRIBUTE_SIZE]; // (type, len, handle), handle, len, data daemon_setup_characteristic_value_event(le_event, event); hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, sizeof(event)); break; } case GATT_LONG_CHARACTERISTIC_VALUE_QUERY_RESULT:{ #if defined(HAVE_MALLOC) gatt_chunk = 1; le_characteristic_value_event_t * cvalue_event = (le_characteristic_value_event_t *) le_event; data = daemon_get_data_buffer(le_event->client); gatt_client_helper = daemon_get_gatt_client_helper(le_event->client); gatt_client_helper->characteristic_length = cvalue_event->value_offset + cvalue_event->blob_length; memcpy(&data[cvalue_event->value_offset], cvalue_event->blob, cvalue_event->blob_length); #endif break; } case GATT_NOTIFICATION: case GATT_INDICATION:{ uint8_t event[4 + 2 + 1 + ATT_MAX_ATTRIBUTE_SIZE]; // (type, len, handle), handle, len, data daemon_setup_characteristic_value_event(le_event, event); hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); linked_item_t *it; for (it = (linked_item_t *) clients; it ; it = it->next){ client_state_t * client_state = (client_state_t *) it; socket_connection_send_packet(client_state->connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); } break; } case GATT_QUERY_COMPLETE:{ if (gatt_chunk){ gatt_client_helper = daemon_get_gatt_client_helper(le_event->client); data = daemon_get_data_buffer(le_event->client); uint8_t event[4 + 2 + 1 + gatt_client_helper->characteristic_length]; daemon_setup_long_characteristic_value_event(event, complete_event->client->handle, complete_event->client->attribute_handle, gatt_client_helper->characteristic_length, data); socket_connection_send_packet(context, HCI_EVENT_PACKET, 0, event, sizeof(event)); gatt_chunk = 0; } send_gatt_query_complete(context, complete_event->client->handle, complete_event->status); break; } default: break; } } #endif int main (int argc, char * const * argv){ static int tcp_flag = 0; while (1) { static struct option long_options[] = { { "tcp", no_argument, &tcp_flag, 1 }, { "help", no_argument, 0, 0 }, { 0,0,0,0 } // This is a filler for -1 }; int c; int option_index = -1; c = getopt_long(argc, argv, "h", long_options, &option_index); if (c == -1) break; // no more option // treat long parameter first if (option_index == -1) { switch (c) { case '?': case 'h': usage(argv[0]); return 0; break; } } else { switch (option_index) { case 1: usage(argv[0]); return 0; break; } } } if (tcp_flag){ printf("BTstack Daemon started on port %u\n", BTSTACK_PORT); } else { printf("BTstack Daemon started on socket %s\n", BTSTACK_UNIX); } // make stdout unbuffered setbuf(stdout, NULL); // handle CTRL-c signal(SIGINT, daemon_sigint_handler); // handle SIGTERM - suggested for launchd signal(SIGTERM, daemon_sigint_handler); // handle SIGPIPE struct sigaction act; act.sa_handler = SIG_IGN; sigemptyset (&act.sa_mask); act.sa_flags = 0; sigaction (SIGPIPE, &act, NULL); bt_control_t * control = NULL; #ifdef HAVE_TRANSPORT_H4 config.device_name = UART_DEVICE; config.baudrate_init = UART_SPEED; config.baudrate_main = 0; config.flowcontrol = 1; #if defined(USE_BLUETOOL) && defined(USE_POWERMANAGEMENT) if (bt_control_iphone_power_management_supported()){ // use default (max) UART baudrate over netraph interface config.baudrate_init = 0; transport = hci_transport_h4_iphone_instance(); } else { transport = hci_transport_h4_instance(); } #else transport = hci_transport_h4_instance(); #endif #endif #ifdef HAVE_TRANSPORT_USB transport = hci_transport_usb_instance(); #endif #ifdef USE_BLUETOOL control = &bt_control_iphone; #endif #if defined(USE_BLUETOOL) && defined(USE_POWERMANAGEMENT) if (bt_control_iphone_power_management_supported()){ hci_transport_h4_iphone_set_enforce_wake_device("/dev/btwake"); } #endif #ifdef USE_SPRINGBOARD bluetooth_status_handler = platform_iphone_status_handler; platform_iphone_register_window_manager_restart(update_ui_status); platform_iphone_register_preferences_changed(preferences_changed_callback); #endif #ifdef REMOTE_DEVICE_DB remote_device_db = &REMOTE_DEVICE_DB; #endif run_loop_init(RUN_LOOP_POSIX); // init power management notifications if (control && control->register_for_power_notifications){ control->register_for_power_notifications(power_notification_callback); } // logging loggingEnabled = 0; int newLoggingEnabled = 1; #ifdef USE_BLUETOOL // iPhone has toggle in Preferences.app newLoggingEnabled = platform_iphone_logging_enabled(); #endif daemon_set_logging_enabled(newLoggingEnabled); // dump version log_info("BTdaemon started\n"); log_info("version %s, svn r%u, build %s", BTSTACK_VERSION, BTSTACK_REVISION, BTSTACK_DATE); // init HCI hci_init(transport, &config, control, remote_device_db); #ifdef USE_BLUETOOL // iPhone doesn't use SSP yet as there's no UI for it yet and auto accept is not an option hci_ssp_set_enable(0); #endif // init L2CAP l2cap_init(); l2cap_register_packet_handler(&daemon_packet_handler); timeout.process = daemon_no_connections_timeout; #ifdef HAVE_RFCOMM log_info("config.h: HAVE_RFCOMM\n"); rfcomm_init(); rfcomm_register_packet_handler(&daemon_packet_handler); #endif #ifdef HAVE_SDP sdp_init(); sdp_register_packet_handler(&daemon_packet_handler); #endif #ifdef HAVE_BLE gatt_client_init(); gatt_client_register_handler(&handle_gatt_client_event); #endif #ifdef USE_LAUNCHD socket_connection_create_launchd(); #else // create server if (tcp_flag) { socket_connection_create_tcp(BTSTACK_PORT); } else { socket_connection_create_unix(BTSTACK_UNIX); } #endif socket_connection_register_packet_callback(&daemon_client_handler); #ifdef USE_BLUETOOL // notify daemons notify_post("ch.ringwald.btstack.started"); // spawn thread to have BTstack run loop on new thread, while main thread is used to keep CFRunLoop pthread_t run_loop; pthread_create(&run_loop, NULL, &run_loop_thread, NULL); // needed to receive notifications CFRunLoopRun(); #endif // go! run_loop_execute(); return 0; }