usr.sbin/sdpd/profile.c

   1 /* $NetBSD: profile.c,v 1.4 2007/11/09 20:08:41 plunky Exp $ */
   2 /* $DragonFly: src/usr.sbin/sdpd/profile.c,v 1.1 2008/01/06 21:51:30 hasso Exp $ */
   3
   4 /*
   5  * profile.c
   6  *
   7  * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  * $Id: profile.c,v 1.2 2007/11/30 07:39:37 griffin Exp $
  32  * $FreeBSD: src/usr.sbin/bluetooth/sdpd/profile.c,v 1.2 2004/07/28 07:15:44 kan Exp $
  33  */
  34
  35 #include <sys/queue.h>
  36 #include <sys/utsname.h>
  37 #include <bluetooth.h>
  38 #include <sdp.h>
  39 #include <string.h>
  40 #include "profile.h"
  41 #include "provider.h"
  42
  43 /*
  44  * Lookup profile descriptor
  45  */
  46
  47 profile_p
  48 profile_get_descriptor(uint16_t uuid)
  49 {
  50         extern  profile_t       dun_profile_descriptor;
  51         extern  profile_t       ftrn_profile_descriptor;
  52         extern  profile_t       hf_profile_descriptor;
  53         extern  profile_t       hset_profile_descriptor;
  54         extern  profile_t       irmc_profile_descriptor;
  55         extern  profile_t       irmc_command_profile_descriptor;
  56         extern  profile_t       lan_profile_descriptor;
  57         extern  profile_t       opush_profile_descriptor;
  58         extern  profile_t       sp_profile_descriptor;
  59
  60         static const profile_p  profiles[] = {
  61                 &dun_profile_descriptor,
  62                 &ftrn_profile_descriptor,
  63                 &hf_profile_descriptor,
  64                 &hset_profile_descriptor,
  65                 &irmc_profile_descriptor,
  66                 &irmc_command_profile_descriptor,
  67                 &lan_profile_descriptor,
  68                 &opush_profile_descriptor,
  69                 &sp_profile_descriptor
  70         };
  71
  72         int32_t                 i;
  73
  74         for (i = 0; i < sizeof(profiles)/sizeof(profiles[0]); i++)
  75                 if (profiles[i]->uuid[0] == uuid)
  76                         return (profiles[i]);
  77
  78         return (NULL);
  79 }
  80
  81 /*
  82  * Look attribute in the profile descripror
  83  */
  84
  85 profile_attr_create_p
  86 profile_get_attr(const profile_p profile, uint16_t attr)
  87 {
  88         attr_t const    *ad = (attr_t const *) profile->attrs;
  89
  90         for (; ad->create != NULL; ad ++)
  91                 if (ad->attr == attr)
  92                         return (ad->create);
  93
  94         return (NULL);
  95 }
  96
  97 /*
  98  * uint32 value32 - 5 bytes
  99  */
 100
 101 int32_t
 102 common_profile_create_service_record_handle(
 103         uint8_t *buf, uint8_t const * const eob,
 104         uint8_t const *data, uint32_t datalen)
 105 {
 106         if (buf + 5 > eob)
 107                 return (-1);
 108
 109         SDP_PUT8(SDP_DATA_UINT32, buf);
 110         SDP_PUT32(((provider_t const *) data)->handle, buf);
 111
 112         return (5);
 113 }
 114
 115 /*
 116  * seq8 len8                    - 2 bytes
 117  *      uuid16 value16          - 3 bytes
 118  *      [ uuid16 value ]
 119  */
 120
 121 int32_t
 122 common_profile_create_service_class_id_list(
 123                 uint8_t *buf, uint8_t const * const eob,
 124                 uint8_t const *data, uint32_t datalen)
 125 {
 126         int32_t len = 3 * (datalen >>= 1);
 127
 128         if (len <= 0 || len > 0xff || buf + 2 + len > eob)
 129                 return (-1);
 130
 131         SDP_PUT8(SDP_DATA_SEQ8, buf);
 132         SDP_PUT8(len, buf);
 133
 134         for (; datalen > 0; datalen --) {
 135                 SDP_PUT8(SDP_DATA_UUID16, buf);
 136                 SDP_PUT16(*((uint16_t const *)data), buf);
 137                 data += sizeof(uint16_t);
 138         }
 139
 140         return (2 + len);
 141 }
 142
 143 /*
 144  * seq8 len8                    - 2 bytes
 145  *      seq 8 len8              - 2 bytes
 146  *              uuid16 value16  - 3 bytes
 147  *              uint16 value16  - 3 bytes
 148  *      [ seq 8 len8
 149  *              uuid16 value16
 150  *              uint16 value16 ]
 151  */
 152
 153 int32_t
 154 common_profile_create_bluetooth_profile_descriptor_list(
 155                 uint8_t *buf, uint8_t const * const eob,
 156                 uint8_t const *data, uint32_t datalen)
 157 {
 158         int32_t len = 8 * (datalen >>= 2);
 159
 160         if (len <= 0 || len > 0xff || buf + 2 + len > eob)
 161                 return (-1);
 162
 163         SDP_PUT8(SDP_DATA_SEQ8, buf);
 164         SDP_PUT8(len, buf);
 165
 166         for (; datalen > 0; datalen --) {
 167                 SDP_PUT8(SDP_DATA_SEQ8, buf);
 168                 SDP_PUT8(6, buf);
 169                 SDP_PUT8(SDP_DATA_UUID16, buf);
 170                 SDP_PUT16(*((uint16_t const *)data), buf);
 171                 data += sizeof(uint16_t);
 172                 SDP_PUT8(SDP_DATA_UINT16, buf);
 173                 SDP_PUT16(*((uint16_t const *)data), buf);
 174                 data += sizeof(uint16_t);
 175         }
 176
 177         return (2 + len);
 178 }
 179
 180 /*
 181  * seq8 len8            - 2 bytes
 182  *      uint16 value16  - 3 bytes
 183  *      uint16 value16  - 3 bytes
 184  *      uint16 value16  - 3 bytes
 185  */
 186
 187 int32_t
 188 common_profile_create_language_base_attribute_id_list(
 189                 uint8_t *buf, uint8_t const * const eob,
 190                 uint8_t const *data, uint32_t datalen)
 191 {
 192         if (buf + 11 > eob)
 193                 return (-1);
 194
 195         SDP_PUT8(SDP_DATA_SEQ8, buf);
 196         SDP_PUT8(9, buf);
 197
 198         /*
 199          * Language code per ISO 639:1988. Use "en".
 200          */
 201
 202         SDP_PUT8(SDP_DATA_UINT16, buf);
 203         SDP_PUT16(((0x65 << 8) | 0x6e), buf);
 204
 205         /*
 206          * Encoding. Recommended is UTF-8. ISO639 UTF-8 MIBenum is 106
 207          * (http://www.iana.org/assignments/character-sets)
 208          */
 209
 210         SDP_PUT8(SDP_DATA_UINT16, buf);
 211         SDP_PUT16(106, buf);
 212
 213         /*
 214          * Offset (Primary Language Base is 0x100)
 215          */
 216
 217         SDP_PUT8(SDP_DATA_UINT16, buf);
 218         SDP_PUT16(SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID, buf);
 219
 220         return (11);
 221 }
 222
 223 /*
 224  * Use Operating System name as provider name
 225  */
 226
 227 int32_t
 228 common_profile_create_service_provider_name(
 229                 uint8_t *buf, uint8_t const * const eob,
 230                 uint8_t const *data, uint32_t datalen)
 231 {
 232         struct utsname u;
 233         char const *name;
 234
 235         if (uname(&u) < 0)
 236                 name = "Unknown";
 237         else
 238                 name = u.sysname;
 239
 240         return (common_profile_create_string8(buf, eob,
 241                         (uint8_t const *)name, strlen(name)));
 242 }
 243
 244 /*
 245  * str8 len8 string
 246  */
 247
 248 int32_t
 249 common_profile_create_string8(
 250                 uint8_t *buf, uint8_t const * const eob,
 251                 uint8_t const *data, uint32_t datalen)
 252 {
 253         if (datalen == 0 || datalen > 0xff || buf + 2 + datalen > eob)
 254                 return (-1);
 255
 256         SDP_PUT8(SDP_DATA_STR8, buf);
 257         SDP_PUT8(datalen, buf);
 258         memcpy(buf, data, datalen);
 259
 260         return (2 + datalen);
 261 }
 262
 263 /*
 264  * seq8 len8                    - 2 bytes
 265  *      seq8 len8               - 2 bytes
 266  *              uuid16 value16  - 3 bytes
 267  *      seq8 len8               - 2 bytes
 268  *              uuid16 value16  - 3 bytes
 269  *              uint8 value8    - 2 bytes
 270  */
 271
 272 int32_t
 273 rfcomm_profile_create_protocol_descriptor_list(
 274                 uint8_t *buf, uint8_t const * const eob,
 275                 uint8_t const *data, uint32_t datalen)
 276 {
 277         if (datalen != 1 || buf + 14 > eob)
 278                 return (-1);
 279
 280         SDP_PUT8(SDP_DATA_SEQ8, buf);
 281         SDP_PUT8(12, buf);
 282
 283         SDP_PUT8(SDP_DATA_SEQ8, buf);
 284         SDP_PUT8(3, buf);
 285         SDP_PUT8(SDP_DATA_UUID16, buf);
 286         SDP_PUT16(SDP_UUID_PROTOCOL_L2CAP, buf);
 287
 288         SDP_PUT8(SDP_DATA_SEQ8, buf);
 289         SDP_PUT8(5, buf);
 290         SDP_PUT8(SDP_DATA_UUID16, buf);
 291         SDP_PUT16(SDP_UUID_PROTOCOL_RFCOMM, buf);
 292         SDP_PUT8(SDP_DATA_UINT8, buf);
 293         SDP_PUT8(*data, buf);
 294
 295         return (14);
 296 }
 297
 298 /*
 299  * seq8 len8                    - 2 bytes
 300  *      seq8 len8               - 2 bytes
 301  *              uuid16 value16  - 3 bytes
 302  *      seq8 len8               - 2 bytes
 303  *              uuid16 value16  - 3 bytes
 304  *              uint8 value8    - 2 bytes
 305  *      seq8 len8               - 2 bytes
 306  *              uuid16 value16  - 3 bytes
 307  */
 308
 309 int32_t
 310 obex_profile_create_protocol_descriptor_list(
 311                 uint8_t *buf, uint8_t const * const eob,
 312                 uint8_t const *data, uint32_t datalen)
 313 {
 314         if (datalen != 1 || buf + 19 > eob)
 315                 return (-1);
 316
 317         SDP_PUT8(SDP_DATA_SEQ8, buf);
 318         SDP_PUT8(17, buf);
 319
 320         SDP_PUT8(SDP_DATA_SEQ8, buf);
 321         SDP_PUT8(3, buf);
 322         SDP_PUT8(SDP_DATA_UUID16, buf);
 323         SDP_PUT16(SDP_UUID_PROTOCOL_L2CAP, buf);
 324
 325         SDP_PUT8(SDP_DATA_SEQ8, buf);
 326         SDP_PUT8(5, buf);
 327         SDP_PUT8(SDP_DATA_UUID16, buf);
 328         SDP_PUT16(SDP_UUID_PROTOCOL_RFCOMM, buf);
 329         SDP_PUT8(SDP_DATA_UINT8, buf);
 330         SDP_PUT8(*data, buf);
 331
 332         SDP_PUT8(SDP_DATA_SEQ8, buf);
 333         SDP_PUT8(3, buf);
 334         SDP_PUT8(SDP_DATA_UUID16, buf);
 335         SDP_PUT16(SDP_UUID_PROTOCOL_OBEX, buf);
 336
 337         return (19);
 338 }
 339
 340 /*
 341  * seq8 len8
 342  *      uint8 value8    - bytes
 343  *      [ uint8 value 8 ]
 344  */
 345
 346 int32_t
 347 obex_profile_create_supported_formats_list(
 348                 uint8_t *buf, uint8_t const * const eob,
 349                 uint8_t const *data, uint32_t datalen)
 350 {
 351         int32_t len = 2 * datalen;
 352
 353         if (len <= 0 || len > 0xff || buf + 2 + len > eob)
 354                 return (-1);
 355
 356         SDP_PUT8(SDP_DATA_SEQ8, buf);
 357         SDP_PUT8(len, buf);
 358
 359         for (; datalen > 0; datalen --) {
 360                 SDP_PUT8(SDP_DATA_UINT8, buf);
 361                 SDP_PUT8(*data++, buf);
 362         }
 363
 364         return (2 + len);
 365 }
 366
 367 /*
 368  * verify server channel number (the first byte in the data)
 369  */
 370
 371 int32_t
 372 common_profile_server_channel_valid(uint8_t const *data, uint32_t datalen)
 373 {
 374         if (data[0] < 1 || data[0] > 30)
 375                 return (0);
 376
 377         return (1);
 378 }
 379
 380 /*
 381  * verify server channel number and supported_formats_size
 382  * sdp_opush_profile and sdp_irmc_profile
 383  */
 384
 385 int32_t
 386 obex_profile_data_valid(uint8_t const *data, uint32_t datalen)
 387 {
 388         sdp_opush_profile_t const *opush = (sdp_opush_profile_t const *) data;
 389
 390         if (opush->server_channel < 1 ||
 391             opush->server_channel > 30 ||
 392             opush->supported_formats_size == 0 ||
 393             opush->supported_formats_size > sizeof(opush->supported_formats))
 394                 return (0);
 395
 396         return (1);
 397 }