1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2019 Hans Petter Selasky <hselasky@freebsd.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/queue.h>
30 #define L2CAP_SOCKET_CHECKED
31 #include <bluetooth.h>
32 #include <sdp.h>
33 #include <string.h>
34 #include "profile.h"
35 #include "provider.h"
36
37 static int32_t
audio_sink_profile_create_service_class_id_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)38 audio_sink_profile_create_service_class_id_list(
39 uint8_t *buf, uint8_t const *const eob,
40 uint8_t const *data, uint32_t datalen)
41 {
42 static const uint16_t service_classes[] = {
43 SDP_SERVICE_CLASS_AUDIO_SINK,
44 };
45
46 return (common_profile_create_service_class_id_list(
47 buf, eob,
48 (uint8_t const *)service_classes,
49 sizeof(service_classes)));
50 }
51
52 static int32_t
audio_sink_profile_create_protocol_descriptor_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)53 audio_sink_profile_create_protocol_descriptor_list(
54 uint8_t *buf, uint8_t const *const eob,
55 uint8_t const *data, uint32_t datalen)
56 {
57 provider_p provider = (provider_p) data;
58 sdp_audio_sink_profile_p audio_sink = (sdp_audio_sink_profile_p) provider->data;
59
60 if (buf + 18 > eob)
61 return (-1);
62
63 SDP_PUT8(SDP_DATA_SEQ8, buf);
64 SDP_PUT8(16, buf);
65
66 SDP_PUT8(SDP_DATA_SEQ8, buf);
67 SDP_PUT8(6, buf);
68
69 SDP_PUT8(SDP_DATA_UUID16, buf);
70 SDP_PUT16(SDP_UUID_PROTOCOL_L2CAP, buf);
71
72 SDP_PUT8(SDP_DATA_UINT16, buf);
73 SDP_PUT16(audio_sink->psm, buf);
74
75 SDP_PUT8(SDP_DATA_SEQ8, buf);
76 SDP_PUT8(6, buf);
77
78 SDP_PUT8(SDP_DATA_UUID16, buf);
79 SDP_PUT16(SDP_UUID_PROTOCOL_AVDTP, buf);
80
81 SDP_PUT8(SDP_DATA_UINT16, buf);
82 SDP_PUT16(audio_sink->protover, buf);
83
84 return (18);
85 }
86
87 static int32_t
audio_sink_profile_create_browse_group_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)88 audio_sink_profile_create_browse_group_list(
89 uint8_t *buf, uint8_t const *const eob,
90 uint8_t const *data, uint32_t datalen)
91 {
92
93 if (buf + 5 > eob)
94 return (-1);
95
96 SDP_PUT8(SDP_DATA_SEQ8, buf);
97 SDP_PUT8(3, buf);
98
99 SDP_PUT8(SDP_DATA_UUID16, buf);
100 SDP_PUT16(SDP_SERVICE_CLASS_PUBLIC_BROWSE_GROUP, buf);
101
102 return (5);
103 }
104
105 static int32_t
audio_sink_profile_create_bluetooth_profile_descriptor_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)106 audio_sink_profile_create_bluetooth_profile_descriptor_list(
107 uint8_t *buf, uint8_t const *const eob,
108 uint8_t const *data, uint32_t datalen)
109 {
110 static const uint16_t profile_descriptor_list[] = {
111 SDP_SERVICE_CLASS_ADVANCED_AUDIO_DISTRIBUTION,
112 0x0100
113 };
114
115 return (common_profile_create_bluetooth_profile_descriptor_list(
116 buf, eob,
117 (uint8_t const *)profile_descriptor_list,
118 sizeof(profile_descriptor_list)));
119 }
120
121 static int32_t
audio_sink_profile_create_service_name(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)122 audio_sink_profile_create_service_name(
123 uint8_t *buf, uint8_t const *const eob,
124 uint8_t const *data, uint32_t datalen)
125 {
126 static const char service_name[] = "Audio SNK";
127
128 return (common_profile_create_string8(
129 buf, eob,
130 (uint8_t const *)service_name, strlen(service_name)));
131 }
132
133 static int32_t
audio_sink_create_supported_features(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)134 audio_sink_create_supported_features(
135 uint8_t *buf, uint8_t const *const eob,
136 uint8_t const *data, uint32_t datalen)
137 {
138 provider_p provider = (provider_p) data;
139 sdp_audio_sink_profile_p audio_sink = (sdp_audio_sink_profile_p) provider->data;
140
141 if (buf + 3 > eob)
142 return (-1);
143
144 SDP_PUT8(SDP_DATA_UINT16, buf);
145 SDP_PUT16(audio_sink->features, buf);
146
147 return (3);
148 }
149
150 static int32_t
audio_sink_profile_valid(uint8_t const * data,uint32_t datalen)151 audio_sink_profile_valid(uint8_t const *data, uint32_t datalen)
152 {
153
154 if (datalen < sizeof(struct sdp_audio_sink_profile))
155 return (0);
156 return (1);
157 }
158
159 static const attr_t audio_sink_profile_attrs[] = {
160 {SDP_ATTR_SERVICE_RECORD_HANDLE,
161 common_profile_create_service_record_handle},
162 {SDP_ATTR_SERVICE_CLASS_ID_LIST,
163 audio_sink_profile_create_service_class_id_list},
164 {SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
165 audio_sink_profile_create_protocol_descriptor_list},
166 {SDP_ATTR_BROWSE_GROUP_LIST,
167 audio_sink_profile_create_browse_group_list},
168 {SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
169 common_profile_create_language_base_attribute_id_list},
170 {SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
171 audio_sink_profile_create_bluetooth_profile_descriptor_list},
172 {SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
173 audio_sink_profile_create_service_name},
174 {SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_PROVIDER_NAME_OFFSET,
175 common_profile_create_service_provider_name},
176 {SDP_ATTR_SUPPORTED_FEATURES,
177 audio_sink_create_supported_features},
178 {} /* end entry */
179 };
180
181 profile_t audio_sink_profile_descriptor = {
182 SDP_SERVICE_CLASS_AUDIO_SINK,
183 sizeof(sdp_audio_sink_profile_t),
184 audio_sink_profile_valid,
185 (attr_t const *const)&audio_sink_profile_attrs
186 };
187