1 /*-
2 * sd.c
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: sd.c,v 1.4 2004/01/13 01:54:39 max Exp $
31 */
32
33 #include <sys/queue.h>
34 #define L2CAP_SOCKET_CHECKED
35 #include <bluetooth.h>
36 #include <sdp.h>
37 #include <string.h>
38 #include "profile.h"
39 #include "provider.h"
40
41 static int32_t
sd_profile_create_service_class_id_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)42 sd_profile_create_service_class_id_list(
43 uint8_t *buf, uint8_t const * const eob,
44 uint8_t const *data, uint32_t datalen)
45 {
46 static uint16_t service_classes[] = {
47 SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER
48 };
49
50 return (common_profile_create_service_class_id_list(
51 buf, eob,
52 (uint8_t const *) service_classes,
53 sizeof(service_classes)));
54 }
55
56 static int32_t
sd_profile_create_bluetooth_profile_descriptor_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)57 sd_profile_create_bluetooth_profile_descriptor_list(
58 uint8_t *buf, uint8_t const * const eob,
59 uint8_t const *data, uint32_t datalen)
60 {
61 static uint16_t profile_descriptor_list[] = {
62 SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER,
63 0x0100
64 };
65
66 return (common_profile_create_bluetooth_profile_descriptor_list(
67 buf, eob,
68 (uint8_t const *) profile_descriptor_list,
69 sizeof(profile_descriptor_list)));
70 }
71
72 static int32_t
sd_profile_create_service_id(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)73 sd_profile_create_service_id(
74 uint8_t *buf, uint8_t const * const eob,
75 uint8_t const *data, uint32_t datalen)
76 {
77 if (buf + 3 > eob)
78 return (-1);
79
80 /*
81 * The ServiceID is a UUID that universally and uniquely identifies
82 * the service instance described by the service record. This service
83 * attribute is particularly useful if the same service is described
84 * by service records in more than one SDP server
85 */
86
87 SDP_PUT8(SDP_DATA_UUID16, buf);
88 SDP_PUT16(SDP_UUID_PROTOCOL_SDP, buf); /* XXX ??? */
89
90 return (3);
91 }
92
93 static int32_t
sd_profile_create_service_name(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)94 sd_profile_create_service_name(
95 uint8_t *buf, uint8_t const * const eob,
96 uint8_t const *data, uint32_t datalen)
97 {
98 static char service_name[] = "Bluetooth service discovery";
99
100 return (common_profile_create_string8(
101 buf, eob,
102 (uint8_t const *) service_name, strlen(service_name)));
103 }
104
105 static int32_t
sd_profile_create_protocol_descriptor_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)106 sd_profile_create_protocol_descriptor_list(
107 uint8_t *buf, uint8_t const * const eob,
108 uint8_t const *data, uint32_t datalen)
109 {
110 if (buf + 12 > eob)
111 return (-1);
112
113 SDP_PUT8(SDP_DATA_SEQ8, buf);
114 SDP_PUT8(10, buf);
115
116 SDP_PUT8(SDP_DATA_SEQ8, buf);
117 SDP_PUT8(3, buf);
118 SDP_PUT8(SDP_DATA_UUID16, buf);
119 SDP_PUT16(SDP_UUID_PROTOCOL_L2CAP, buf);
120
121 SDP_PUT8(SDP_DATA_SEQ8, buf);
122 SDP_PUT8(3, buf);
123 SDP_PUT8(SDP_DATA_UUID16, buf);
124 SDP_PUT16(SDP_UUID_PROTOCOL_SDP, buf);
125
126 return (12);
127 }
128
129 static int32_t
sd_profile_create_browse_group_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)130 sd_profile_create_browse_group_list(
131 uint8_t *buf, uint8_t const * const eob,
132 uint8_t const *data, uint32_t datalen)
133 {
134 if (buf + 5 > eob)
135 return (-1);
136
137 SDP_PUT8(SDP_DATA_SEQ8, buf);
138 SDP_PUT8(3, buf);
139
140 /*
141 * The top-level browse group ID, called PublicBrowseRoot and
142 * representing the root of the browsing hierarchy, has the value
143 * 00001002-0000-1000-8000-00805F9B34FB (UUID16: 0x1002) from the
144 * Bluetooth Assigned Numbers document
145 */
146
147 SDP_PUT8(SDP_DATA_UUID16, buf);
148 SDP_PUT16(SDP_SERVICE_CLASS_PUBLIC_BROWSE_GROUP, buf);
149
150 return (5);
151 }
152
153 static int32_t
sd_profile_create_version_number_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)154 sd_profile_create_version_number_list(
155 uint8_t *buf, uint8_t const * const eob,
156 uint8_t const *data, uint32_t datalen)
157 {
158 if (buf + 5 > eob)
159 return (-1);
160
161 SDP_PUT8(SDP_DATA_SEQ8, buf);
162 SDP_PUT8(3, buf);
163
164 /*
165 * The VersionNumberList is a data element sequence in which each
166 * element of the sequence is a version number supported by the SDP
167 * server. A version number is a 16-bit unsigned integer consisting
168 * of two fields. The higher-order 8 bits contain the major version
169 * number field and the low-order 8 bits contain the minor version
170 * number field. The initial version of SDP has a major version of
171 * 1 and a minor version of 0
172 */
173
174 SDP_PUT8(SDP_DATA_UINT16, buf);
175 SDP_PUT16(0x0100, buf);
176
177 return (5);
178 }
179
180 static int32_t
sd_profile_create_service_database_state(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)181 sd_profile_create_service_database_state(
182 uint8_t *buf, uint8_t const * const eob,
183 uint8_t const *data, uint32_t datalen)
184 {
185 uint32_t change_state = provider_get_change_state();
186
187 if (buf + 5 > eob)
188 return (-1);
189
190 SDP_PUT8(SDP_DATA_UINT32, buf);
191 SDP_PUT32(change_state, buf);
192
193 return (5);
194 }
195
196 static attr_t sd_profile_attrs[] = {
197 { SDP_ATTR_SERVICE_RECORD_HANDLE,
198 common_profile_create_service_record_handle },
199 { SDP_ATTR_SERVICE_CLASS_ID_LIST,
200 sd_profile_create_service_class_id_list },
201 { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
202 sd_profile_create_bluetooth_profile_descriptor_list },
203 { SDP_ATTR_SERVICE_ID,
204 sd_profile_create_service_id },
205 { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
206 common_profile_create_language_base_attribute_id_list },
207 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
208 sd_profile_create_service_name },
209 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_DESCRIPTION_OFFSET,
210 sd_profile_create_service_name },
211 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_PROVIDER_NAME_OFFSET,
212 common_profile_create_service_provider_name },
213 { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
214 sd_profile_create_protocol_descriptor_list },
215 { SDP_ATTR_BROWSE_GROUP_LIST,
216 sd_profile_create_browse_group_list },
217 { SDP_ATTR_VERSION_NUMBER_LIST,
218 sd_profile_create_version_number_list },
219 { SDP_ATTR_SERVICE_DATABASE_STATE,
220 sd_profile_create_service_database_state },
221 { 0, NULL } /* end entry */
222 };
223
224 profile_t sd_profile_descriptor = {
225 SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER,
226 0,
227 (profile_data_valid_p) NULL,
228 (attr_t const * const) &sd_profile_attrs
229 };
230
231