xref: /btstack/src/ad_parser.h (revision 7cdc89a533ca236b2c2564b759993b788bae89d3)
1 /*
2  * Copyright (C) 2014 BlueKitchen GmbH
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
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7  *
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9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
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15  *    from this software without specific prior written permission.
16  * 4. Any redistribution, use, or modification is done solely for
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19  *
20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24  * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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36  */
37 
38 // *****************************************************************************
39 //
40 // Advertising Data Parser
41 //
42 // *****************************************************************************
43 
44 #ifndef AD_PARSER_H
45 #define AD_PARSER_H
46 
47 #include "btstack_config.h"
48 #include "btstack_bool.h"
49 
50 #include <stdint.h>
51 
52 #if defined __cplusplus
53 extern "C" {
54 #endif
55 
56 /* API_START */
57 
58 typedef struct ad_context {
59      const uint8_t * data;
60      uint8_t   offset;
61      uint8_t   length;
62 } ad_context_t;
63 
64 // Advertising or Scan Response data iterator
65 void ad_iterator_init(ad_context_t *context, uint8_t ad_len, const uint8_t * ad_data);
66 bool ad_iterator_has_more(const ad_context_t * context);
67 void ad_iterator_next(ad_context_t * context);
68 
69 // Access functions
70 uint8_t         ad_iterator_get_data_type(const ad_context_t * context);
71 uint8_t         ad_iterator_get_data_len(const ad_context_t * context);
72 const uint8_t * ad_iterator_get_data(const ad_context_t * context);
73 
74 // convenience function on complete advertisements
75 bool ad_data_contains_uuid16(uint8_t ad_len, const uint8_t * ad_data, uint16_t uuid16);
76 bool ad_data_contains_uuid128(uint8_t ad_len, const uint8_t * ad_data, const uint8_t * uuid128);
77 
78 /* API_END */
79 
80 #if defined __cplusplus
81 }
82 #endif
83 #endif // AD_PARSER_H
84