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 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 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 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 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 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 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 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 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