usr.sbin/sdpd/sd.c

   1 /* $NetBSD: sd.c,v 1.2 2007/11/09 20:08:41 plunky Exp $ */
   2
   3 /*
   4  * sd.c
   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 1.2 2007/11/30 07:39:37 griffin Exp $
  31  * $FreeBSD: src/usr.sbin/bluetooth/sdpd/sd.c,v 1.1 2004/01/20 20:48:26 emax Exp $
  32  */
  33
  34 #include <sys/queue.h>
  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
  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
  57 sd_profile_create_service_id(
  58                 uint8_t *buf, uint8_t const * const eob,
  59                 uint8_t const *data, uint32_t datalen)
  60 {
  61         if (buf + 3 > eob)
  62                 return (-1);
  63
  64         /*
  65          * The ServiceID is a UUID that universally and uniquely identifies
  66          * the service instance described by the service record. This service
  67          * attribute is particularly useful if the same service is described
  68          * by service records in more than one SDP server
  69          */
  70
  71         SDP_PUT8(SDP_DATA_UUID16, buf);
  72         SDP_PUT16(SDP_UUID_PROTOCOL_SDP, buf); /* XXX ??? */
  73
  74         return (3);
  75 }
  76
  77 static int32_t
  78 sd_profile_create_service_name(
  79                 uint8_t *buf, uint8_t const * const eob,
  80                 uint8_t const *data, uint32_t datalen)
  81 {
  82         static char     service_name[] = "Bluetooth service discovery";
  83
  84         return (common_profile_create_string8(
  85                         buf, eob,
  86                         (uint8_t const *) service_name, strlen(service_name)));
  87 }
  88
  89 static int32_t
  90 sd_profile_create_protocol_descriptor_list(
  91                 uint8_t *buf, uint8_t const * const eob,
  92                 uint8_t const *data, uint32_t datalen)
  93 {
  94         if (buf + 13 > eob)
  95                 return (-1);
  96
  97         SDP_PUT8(SDP_DATA_SEQ8, buf);
  98         SDP_PUT8(11, buf);
  99
 100         SDP_PUT8(SDP_DATA_SEQ8, buf);
 101         SDP_PUT8(9, buf);
 102
 103         SDP_PUT8(SDP_DATA_UUID16, buf);
 104         SDP_PUT16(SDP_UUID_PROTOCOL_L2CAP, buf);
 105
 106         SDP_PUT8(SDP_DATA_UINT16, buf);
 107         SDP_PUT16(L2CAP_PSM_SDP, buf);
 108
 109         SDP_PUT8(SDP_DATA_UINT16, buf);
 110         SDP_PUT16(1, buf); /* version */
 111
 112         return (13);
 113 }
 114
 115 static int32_t
 116 sd_profile_create_browse_group_list(
 117                 uint8_t *buf, uint8_t const * const eob,
 118                 uint8_t const *data, uint32_t datalen)
 119 {
 120         if (buf + 5 > eob)
 121                 return (-1);
 122
 123         SDP_PUT8(SDP_DATA_SEQ8, buf);
 124         SDP_PUT8(3, buf);
 125
 126         /*
 127          * The top-level browse group ID, called PublicBrowseRoot and
 128          * representing the root of the browsing hierarchy, has the value
 129          * 00001002-0000-1000-8000-00805F9B34FB (UUID16: 0x1002) from the
 130          * Bluetooth Assigned Numbers document
 131          */
 132
 133         SDP_PUT8(SDP_DATA_UUID16, buf);
 134         SDP_PUT16(SDP_SERVICE_CLASS_PUBLIC_BROWSE_GROUP, buf);
 135
 136         return (5);
 137 }
 138
 139 static int32_t
 140 sd_profile_create_version_number_list(
 141                 uint8_t *buf, uint8_t const * const eob,
 142                 uint8_t const *data, uint32_t datalen)
 143 {
 144         if (buf + 5 > eob)
 145                 return (-1);
 146
 147         SDP_PUT8(SDP_DATA_SEQ8, buf);
 148         SDP_PUT8(3, buf);
 149
 150         /*
 151          * The VersionNumberList is a data element sequence in which each
 152          * element of the sequence is a version number supported by the SDP
 153          * server. A version number is a 16-bit unsigned integer consisting
 154          * of two fields. The higher-order 8 bits contain the major version
 155          * number field and the low-order 8 bits contain the minor version
 156          * number field. The initial version of SDP has a major version of
 157          * 1 and a minor version of 0
 158          */
 159
 160         SDP_PUT8(SDP_DATA_UINT16, buf);
 161         SDP_PUT16(0x0100, buf);
 162
 163         return (5);
 164 }
 165
 166 static int32_t
 167 sd_profile_create_service_database_state(
 168                 uint8_t *buf, uint8_t const * const eob,
 169                 uint8_t const *data, uint32_t datalen)
 170 {
 171         uint32_t        change_state = provider_get_change_state();
 172
 173         if (buf + 5 > eob)
 174                 return (-1);
 175
 176         SDP_PUT8(SDP_DATA_UINT32, buf);
 177         SDP_PUT32(change_state, buf);
 178
 179         return (5);
 180 }
 181
 182 static attr_t   sd_profile_attrs[] = {
 183         { SDP_ATTR_SERVICE_RECORD_HANDLE,
 184           common_profile_create_service_record_handle },
 185         { SDP_ATTR_SERVICE_CLASS_ID_LIST,
 186           sd_profile_create_service_class_id_list },
 187         { SDP_ATTR_SERVICE_ID,
 188           sd_profile_create_service_id },
 189         { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
 190           common_profile_create_language_base_attribute_id_list },
 191         { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
 192           sd_profile_create_service_name },
 193         { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_DESCRIPTION_OFFSET,
 194           sd_profile_create_service_name },
 195         { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_PROVIDER_NAME_OFFSET,
 196           common_profile_create_service_provider_name },
 197         { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
 198           sd_profile_create_protocol_descriptor_list },
 199         { SDP_ATTR_BROWSE_GROUP_LIST,
 200           sd_profile_create_browse_group_list },
 201         { SDP_ATTR_VERSION_NUMBER_LIST,
 202           sd_profile_create_version_number_list },
 203         { SDP_ATTR_SERVICE_DATABASE_STATE,
 204           sd_profile_create_service_database_state },
 205         { 0, NULL } /* end entry */
 206 };
 207
 208 static uint16_t sd_profile_uuids[] = {
 209         SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER,
 210         SDP_UUID_PROTOCOL_L2CAP,
 211 };
 212
 213 profile_t       sd_profile_descriptor = {
 214         sd_profile_uuids,
 215         sizeof(sd_profile_uuids),
 216         0,
 217         NULL,
 218         (attr_t const * const) &sd_profile_attrs
 219 };