1 /*-
2 * sd.c
3 *
4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 * $FreeBSD$
32 */
33
34 #include <sys/queue.h>
35 #define L2CAP_SOCKET_CHECKED
36 #include <bluetooth.h>
37 #include <sdp.h>
38 #include <string.h>
39 #include "profile.h"
40 #include "provider.h"
41
42 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)43 sd_profile_create_service_class_id_list(
44 uint8_t *buf, uint8_t const * const eob,
45 uint8_t const *data, uint32_t datalen)
46 {
47 static uint16_t service_classes[] = {
48 SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER
49 };
50
51 return (common_profile_create_service_class_id_list(
52 buf, eob,
53 (uint8_t const *) service_classes,
54 sizeof(service_classes)));
55 }
56
57 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)58 sd_profile_create_bluetooth_profile_descriptor_list(
59 uint8_t *buf, uint8_t const * const eob,
60 uint8_t const *data, uint32_t datalen)
61 {
62 static uint16_t profile_descriptor_list[] = {
63 SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER,
64 0x0100
65 };
66
67 return (common_profile_create_bluetooth_profile_descriptor_list(
68 buf, eob,
69 (uint8_t const *) profile_descriptor_list,
70 sizeof(profile_descriptor_list)));
71 }
72
73 static int32_t
sd_profile_create_service_id(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)74 sd_profile_create_service_id(
75 uint8_t *buf, uint8_t const * const eob,
76 uint8_t const *data, uint32_t datalen)
77 {
78 if (buf + 3 > eob)
79 return (-1);
80
81 /*
82 * The ServiceID is a UUID that universally and uniquely identifies
83 * the service instance described by the service record. This service
84 * attribute is particularly useful if the same service is described
85 * by service records in more than one SDP server
86 */
87
88 SDP_PUT8(SDP_DATA_UUID16, buf);
89 SDP_PUT16(SDP_UUID_PROTOCOL_SDP, buf); /* XXX ??? */
90
91 return (3);
92 }
93
94 static int32_t
sd_profile_create_service_name(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)95 sd_profile_create_service_name(
96 uint8_t *buf, uint8_t const * const eob,
97 uint8_t const *data, uint32_t datalen)
98 {
99 static char service_name[] = "Bluetooth service discovery";
100
101 return (common_profile_create_string8(
102 buf, eob,
103 (uint8_t const *) service_name, strlen(service_name)));
104 }
105
106 static int32_t
sd_profile_create_protocol_descriptor_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)107 sd_profile_create_protocol_descriptor_list(
108 uint8_t *buf, uint8_t const * const eob,
109 uint8_t const *data, uint32_t datalen)
110 {
111 if (buf + 12 > eob)
112 return (-1);
113
114 SDP_PUT8(SDP_DATA_SEQ8, buf);
115 SDP_PUT8(10, buf);
116
117 SDP_PUT8(SDP_DATA_SEQ8, buf);
118 SDP_PUT8(3, buf);
119 SDP_PUT8(SDP_DATA_UUID16, buf);
120 SDP_PUT16(SDP_UUID_PROTOCOL_L2CAP, buf);
121
122 SDP_PUT8(SDP_DATA_SEQ8, buf);
123 SDP_PUT8(3, buf);
124 SDP_PUT8(SDP_DATA_UUID16, buf);
125 SDP_PUT16(SDP_UUID_PROTOCOL_SDP, buf);
126
127 return (12);
128 }
129
130 static int32_t
sd_profile_create_browse_group_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)131 sd_profile_create_browse_group_list(
132 uint8_t *buf, uint8_t const * const eob,
133 uint8_t const *data, uint32_t datalen)
134 {
135 if (buf + 5 > eob)
136 return (-1);
137
138 SDP_PUT8(SDP_DATA_SEQ8, buf);
139 SDP_PUT8(3, buf);
140
141 /*
142 * The top-level browse group ID, called PublicBrowseRoot and
143 * representing the root of the browsing hierarchy, has the value
144 * 00001002-0000-1000-8000-00805F9B34FB (UUID16: 0x1002) from the
145 * Bluetooth Assigned Numbers document
146 */
147
148 SDP_PUT8(SDP_DATA_UUID16, buf);
149 SDP_PUT16(SDP_SERVICE_CLASS_PUBLIC_BROWSE_GROUP, buf);
150
151 return (5);
152 }
153
154 static int32_t
sd_profile_create_version_number_list(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)155 sd_profile_create_version_number_list(
156 uint8_t *buf, uint8_t const * const eob,
157 uint8_t const *data, uint32_t datalen)
158 {
159 if (buf + 5 > eob)
160 return (-1);
161
162 SDP_PUT8(SDP_DATA_SEQ8, buf);
163 SDP_PUT8(3, buf);
164
165 /*
166 * The VersionNumberList is a data element sequence in which each
167 * element of the sequence is a version number supported by the SDP
168 * server. A version number is a 16-bit unsigned integer consisting
169 * of two fields. The higher-order 8 bits contain the major version
170 * number field and the low-order 8 bits contain the minor version
171 * number field. The initial version of SDP has a major version of
172 * 1 and a minor version of 0
173 */
174
175 SDP_PUT8(SDP_DATA_UINT16, buf);
176 SDP_PUT16(0x0100, buf);
177
178 return (5);
179 }
180
181 static int32_t
sd_profile_create_service_database_state(uint8_t * buf,uint8_t const * const eob,uint8_t const * data,uint32_t datalen)182 sd_profile_create_service_database_state(
183 uint8_t *buf, uint8_t const * const eob,
184 uint8_t const *data, uint32_t datalen)
185 {
186 uint32_t change_state = provider_get_change_state();
187
188 if (buf + 5 > eob)
189 return (-1);
190
191 SDP_PUT8(SDP_DATA_UINT32, buf);
192 SDP_PUT32(change_state, buf);
193
194 return (5);
195 }
196
197 static attr_t sd_profile_attrs[] = {
198 { SDP_ATTR_SERVICE_RECORD_HANDLE,
199 common_profile_create_service_record_handle },
200 { SDP_ATTR_SERVICE_CLASS_ID_LIST,
201 sd_profile_create_service_class_id_list },
202 { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
203 sd_profile_create_bluetooth_profile_descriptor_list },
204 { SDP_ATTR_SERVICE_ID,
205 sd_profile_create_service_id },
206 { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
207 common_profile_create_language_base_attribute_id_list },
208 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
209 sd_profile_create_service_name },
210 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_DESCRIPTION_OFFSET,
211 sd_profile_create_service_name },
212 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_PROVIDER_NAME_OFFSET,
213 common_profile_create_service_provider_name },
214 { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
215 sd_profile_create_protocol_descriptor_list },
216 { SDP_ATTR_BROWSE_GROUP_LIST,
217 sd_profile_create_browse_group_list },
218 { SDP_ATTR_VERSION_NUMBER_LIST,
219 sd_profile_create_version_number_list },
220 { SDP_ATTR_SERVICE_DATABASE_STATE,
221 sd_profile_create_service_database_state },
222 { 0, NULL } /* end entry */
223 };
224
225 profile_t sd_profile_descriptor = {
226 SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER,
227 0,
228 (profile_data_valid_p) NULL,
229 (attr_t const * const) &sd_profile_attrs
230 };
231
232