1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <stddef.h> 20 21 #include "bluetooth.h" 22 #include "bluetooth/uuid.h" 23 #include "raw_address.h" 24 25 __BEGIN_DECLS 26 27 #define BTSOCK_FLAG_ENCRYPT 1 28 #define BTSOCK_FLAG_AUTH (1 << 1) 29 #define BTSOCK_FLAG_NO_SDP (1 << 2) 30 #define BTSOCK_FLAG_AUTH_MITM (1 << 3) 31 #define BTSOCK_FLAG_AUTH_16_DIGIT (1 << 4) 32 #define BTSOCK_FLAG_LE_COC (1 << 5) 33 34 typedef enum { 35 BTSOCK_RFCOMM = 1, 36 BTSOCK_SCO = 2, 37 BTSOCK_L2CAP = 3, 38 BTSOCK_L2CAP_LE = 4 39 } btsock_type_t; 40 41 /** Represents the standard BT SOCKET interface. */ 42 typedef struct { 43 short size; 44 RawAddress bd_addr; 45 int channel; 46 int status; 47 48 // The writer must make writes using a buffer of this maximum size 49 // to avoid loosing data. (L2CAP only) 50 unsigned short max_tx_packet_size; 51 52 // The reader must read using a buffer of at least this size to avoid 53 // loosing data. (L2CAP only) 54 unsigned short max_rx_packet_size; 55 } __attribute__((packed)) sock_connect_signal_t; 56 57 typedef struct { 58 /** set to size of this struct*/ 59 size_t size; 60 61 /** 62 * Listen to a RFCOMM UUID or channel. It returns the socket fd from which 63 * btsock_connect_signal can be read out when a remote device connected. 64 * If neither a UUID nor a channel is provided, a channel will be allocated 65 * and a service record can be created providing the channel number to 66 * create_sdp_record(...) in bt_sdp. 67 * The callingUid is the UID of the application which is requesting the 68 * socket. This is used for traffic accounting purposes. 69 */ 70 bt_status_t (*listen)(btsock_type_t type, const char* service_name, 71 const bluetooth::Uuid* service_uuid, int channel, 72 int* sock_fd, int flags, int callingUid); 73 74 /** 75 * Connect to a RFCOMM UUID channel of remote device, It returns the socket fd 76 * from which the btsock_connect_signal and a new socket fd to be accepted can 77 * be read out when connected. The callingUid is the UID of the application 78 * which is requesting the socket. This is used for traffic accounting 79 * purposes. 80 */ 81 bt_status_t (*connect)(const RawAddress* bd_addr, btsock_type_t type, 82 const bluetooth::Uuid* uuid, int channel, int* sock_fd, 83 int flags, int callingUid); 84 85 /** 86 * Set the LE Data Length value to this connected peer to the 87 * maximum supported by this BT controller. This command 88 * suggests to the BT controller to set its maximum transmission 89 * packet size. 90 */ 91 void (*request_max_tx_data_length)(const RawAddress& bd_addr); 92 93 } btsock_interface_t; 94 95 __END_DECLS 96