1 | /*
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2 | * Copyright (C) 2009-2012 by Matthias Ringwald
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3 | *
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4 | * Redistribution and use in source and binary forms, with or without
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5 | * modification, are permitted provided that the following conditions
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6 | * are met:
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7 | *
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the copyright holders nor the names of
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14 | * contributors may be used to endorse or promote products derived
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15 | * from this software without specific prior written permission.
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16 | * 4. Any redistribution, use, or modification is done solely for
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17 | * personal benefit and not for any commercial purpose or for
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18 | * monetary gain.
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19 | *
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20 | * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
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21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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23 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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24 | * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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25 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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26 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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27 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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28 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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29 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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30 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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31 | * SUCH DAMAGE.
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32 | *
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33 | * Please inquire about commercial licensing options at btstack@ringwald.ch
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34 | *
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35 | */
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36 | #ifndef __SDP_H
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37 | #define __SDP_H
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38 |
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39 | #include <stdint.h>
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40 | #include <btstack/linked_list.h>
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41 |
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42 | #include "btstack-config.h"
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43 |
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44 | #if defined __cplusplus
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45 | extern "C" {
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46 | #endif
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47 |
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48 | typedef enum {
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49 | SDP_Invalid = 0,
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50 | SDP_ErrorResponse = 1,
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51 | SDP_ServiceSearchRequest,
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52 | SDP_ServiceSearchResponse,
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53 | SDP_ServiceAttributeRequest,
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54 | SDP_ServiceAttributeResponse,
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55 | SDP_ServiceSearchAttributeRequest,
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56 | SDP_ServiceSearchAttributeResponse
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57 | } SDP_PDU_ID_t;
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58 |
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59 | // service record
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60 | // -- uses user_data field for actual
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61 | typedef struct {
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62 | // linked list - assert: first field
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63 | linked_item_t item;
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64 |
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65 | // client connection
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66 | void * connection;
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67 |
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68 | // data is contained in same memory
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69 | uint32_t service_record_handle;
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70 | uint8_t service_record[1]; // waste 1 byte to allow compilation with older compilers
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71 | } service_record_item_t;
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72 |
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73 |
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74 | void sdp_register_packet_handler(void (*handler)(void * connection, uint8_t packet_type,
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75 | uint16_t channel, uint8_t *packet, uint16_t size));
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76 |
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77 |
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78 | //
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79 | int sdp_handle_service_search_request(uint8_t * packet, uint16_t remote_mtu);
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80 | int sdp_handle_service_attribute_request(uint8_t * packet, uint16_t remote_mtu);
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81 | int sdp_handle_service_search_attribute_request(uint8_t * packet, uint16_t remote_mtu);
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82 |
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83 | #ifndef EMBEDDED
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84 | // Register service record internally - this version creates a copy of the record
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85 | // precondition: AttributeIDs are in ascending order => ServiceRecordHandle is first attribute if present
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86 | // @returns ServiceRecordHandle or 0 if registration failed
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87 | uint32_t sdp_register_service_internal(void *connection, uint8_t * service_record);
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88 | #endif
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89 |
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90 | //
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91 |
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92 | /** Embedded API **/
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93 |
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94 | // Set up SDP.
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95 | void sdp_init(void);
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96 |
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97 | #ifdef EMBEDDED
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98 | // Register service record internally - this version doesn't copy the record therefore it must be forever accessible.
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99 | // Preconditions:
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100 | // - AttributeIDs are in ascending order;
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101 | // - ServiceRecordHandle is first attribute and valid.
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102 | // @returns ServiceRecordHandle or 0 if registration failed.
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103 | uint32_t sdp_register_service_internal(void *connection, service_record_item_t * record_item);
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104 | #endif
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105 |
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106 | // Unregister service record internally.
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107 | void sdp_unregister_service_internal(void *connection, uint32_t service_record_handle);
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108 |
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109 | #if defined __cplusplus
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110 | }
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111 | #endif
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112 | #endif // __SDP_H
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