1/****************************************************************************** 2 * 3 * Copyright (C) 2014 Google, Inc. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19#pragma once 20 21#include <hardware/bluetooth.h> 22#include <stdbool.h> 23 24typedef struct uuid_string_t uuid_string_t; 25 26// Creates uuid string structure to hold a well formed UUID 27// string. Must release resources with |uuid_string_free|. 28// Returns NULL if no memory. 29uuid_string_t *uuid_string_new(void); 30 31// Frees a uuid string structure created from |uuid_string_new|. 32// |uuid_string| may be NULL. 33void uuid_string_free(uuid_string_t *uuid_string); 34 35// Returns a string pointer to the well formed UUID string 36// entry. |uuid_string| must not be NULL. 37const char *uuid_string_data(const uuid_string_t *uuid_string); 38 39// Creates uuid structure from a well formed UUID string 40// |uuid_string|. The caller takes ownership of the uuid 41// structure and must release resources with |uuid_free|. 42// |uuid_string| must not be NULL. 43// 44// Returns NULL if |uuid_string| is malformed or no memory. 45// 46// A well formed UUID string is structured like this: 47// "00112233-4455-6677-8899-aabbccddeeff" 48bt_uuid_t *uuid_new(const char *uuid_string); 49 50// Frees a uuid structure created from |uuid_new| and friends. 51// |uuid| may be NULL. 52void uuid_free(bt_uuid_t *uuid); 53 54// Returns true if the UUID is all zeros, false otherwise. 55// |uuid| may not be NULL. 56bool uuid_is_empty(const bt_uuid_t *uuid); 57 58// Returns true if the two UUIDs are equal, false otherwise. 59// |first| and |second| may not be NULL. 60bool uuid_is_equal(const bt_uuid_t *first, const bt_uuid_t *second); 61 62// Copies uuid |src| into |dest| and returns a pointer to |dest|. 63// |src| and |dest| must not be NULL. 64bt_uuid_t *uuid_copy(bt_uuid_t *dest, const bt_uuid_t *src); 65 66// Converts contents of |uuid| to a well formed UUID string 67// |uuid_string| using numbers and lower case letter. |uuid| 68// and |uuid_string| must not be NULL. 69void uuid_to_string(const bt_uuid_t *uuid, uuid_string_t *uuid_string); 70 71// Converts contents of |uuid| to a short uuid if possible. Returns 72// true if conversion is possible, false otherwise. 73// |uuid|, |uuid16| and |uuid32| must not be NULL. 74bool uuid_128_to_16(const bt_uuid_t *uuid, uint16_t *uuid16); 75bool uuid_128_to_32(const bt_uuid_t *uuid, uint32_t *uuid32); 76