src/protostructs.h

   1 ///
   2 /// \file       protostructs.h
   3 ///             USB Blackberry bulk protocol API.  This is split out from
   4 ///             protocol.h so that low level, packed structs can be
   5 ///             compiled separately from the application.  This prevents
   6 ///             aliasing problems in the application, or using
   7 ///             -fno-strict-aliasing, which the library only needs.
   8 ///
   9 ///             Do not include this in any Barry library header.
  10 ///             This may only be included from .cc files, in order
  11 ///             to hide aliasing concernes from the application.
  12 ///
  13
  14 /*
  15     Copyright (C) 2005-2007, Net Direct Inc. (http://www.netdirect.ca/)
  16
  17     This program is free software; you can redistribute it and/or modify
  18     it under the terms of the GNU General Public License as published by
  19     the Free Software Foundation; either version 2 of the License, or
  20     (at your option) any later version.
  21
  22     This program is distributed in the hope that it will be useful,
  23     but WITHOUT ANY WARRANTY; without even the implied warranty of
  24     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  25
  26     See the GNU General Public License in the COPYING file at the
  27     root directory of this project for more details.
  28 */
  29
  30 #ifndef __BARRY_PROTOSTRUCTS_H__
  31 #define __BARRY_PROTOSTRUCTS_H__
  32
  33 #include <stdint.h>
  34 #include <sys/types.h>
  35
  36 // forward declarations
  37 namespace Barry { class Data; }
  38
  39 namespace Barry { namespace Protocol {
  40
  41 ///////////////////////////////////////////////////////////////////////////////
  42 union SizePacket
  43 {
  44         uint16_t size;
  45         char buffer[4];
  46 } __attribute__ ((packed));
  47
  48
  49 ///////////////////////////////////////////////////////////////////////////////
  50 // Record sub-field structs
  51
  52 struct GroupLink                                // used for Contacts records
  53 {
  54         uint32_t        uniqueId;
  55         uint16_t        unknown;
  56 } __attribute__ ((packed));
  57
  58 struct MessageAddress                           // used for Message records
  59 {
  60         uint8_t         unknown[8];
  61         uint8_t         addr[1];        // 2 null terminated strings: first
  62                                         // contains full name, second contains
  63                                         // the email address
  64 } __attribute__ ((packed));
  65
  66
  67
  68 ///////////////////////////////////////////////////////////////////////////////
  69 // Record Field Formats
  70
  71 struct CommonField
  72 {
  73         uint16_t        size;                   // including null terminator
  74         uint8_t         type;
  75
  76         union CommonFieldData
  77         {
  78
  79                 GroupLink       link;
  80                 MessageAddress  addr;
  81                 uint32_t        uint32;
  82                 int32_t         min1900;
  83                 uint16_t        code;
  84                 uint8_t         raw[1];
  85
  86         } __attribute__ ((packed)) u;
  87
  88 } __attribute__ ((packed));
  89 #define COMMON_FIELD_HEADER_SIZE        (sizeof(Barry::Protocol::CommonField) - sizeof(Barry::Protocol::CommonField::CommonFieldData))
  90 #define COMMON_FIELD_MIN1900_SIZE       (sizeof(int32_t))
  91
  92 struct CommandTableField
  93 {
  94         uint8_t         size;           // no null terminator
  95         uint8_t         code;
  96         uint8_t         name[1];
  97 } __attribute__ ((packed));
  98 #define COMMAND_FIELD_HEADER_SIZE       (sizeof(Barry::Protocol::CommandTableField) - 1)
  99
 100 struct OldDBDBField
 101 {
 102         uint16_t        dbNumber;
 103         uint8_t         unknown1;
 104         uint32_t        dbSize;                 // assumed from Cassis docs...
 105                                                 // always 0 in USB
 106         uint16_t        dbRecordCount;
 107         uint16_t        unknown2;
 108         uint16_t        nameSize;               // includes null terminator
 109         uint8_t         name[1];
 110 } __attribute__ ((packed));
 111 #define OLD_DBDB_FIELD_HEADER_SIZE      (sizeof(Barry::Protocol::OldDBDBField) - 1)
 112
 113 struct DBDBField
 114 {
 115         uint16_t        dbNumber;
 116         uint8_t         unknown1;
 117         uint32_t        dbSize;                 // assumed from Cassis docs...
 118                                                 // always 0 in USB
 119         uint32_t        dbRecordCount;
 120         uint16_t        unknown2;
 121         uint16_t        nameSize;               // includes null terminator
 122         uint8_t         unknown3;
 123         uint8_t         name[1];                // followed by 2 zeros!
 124         uint16_t        unknown;                // this comes after the
 125                                                 // null terminated name, but
 126                                                 // is here for size calcs
 127 } __attribute__ ((packed));
 128 #define DBDB_FIELD_HEADER_SIZE  (sizeof(Barry::Protocol::DBDBField) - 1)
 129
 130 struct RecordStateTableField
 131 {
 132         uint8_t         rectype;                // it is unknown exactly what
 133                                                 // this field does, but it
 134                                                 // shows up here and in the
 135                                                 // tagged record header, and
 136                                                 // for some of the records
 137                                                 // they must match when writing
 138         uint16_t        index;
 139         uint32_t        uniqueId;               // matches the uniqueId of say,
 140                                                 // address book records
 141         uint8_t         flags;                  // bit 0x01 is the dirty flag
 142                                                 // don't know if any other bits
 143                                                 // are used
 144 #define BARRY_RSTF_DIRTY        0x01
 145         uint8_t         unknown2[4];
 146 } __attribute__ ((packed));
 147
 148 struct CalendarRecurrenceDataField  // as documented in the Cassis project spec
 149 {
 150         uint8_t         type;
 151 #define CRDF_TYPE_DAY           0x01
 152 #define CRDF_TYPE_MONTH_BY_DATE 0x03
 153 #define CRDF_TYPE_MONTH_BY_DAY  0x04
 154 #define CRDF_TYPE_YEAR_BY_DATE  0x05
 155 #define CRDF_TYPE_YEAR_BY_DAY   0x06
 156 #define CRDF_TYPE_WEEK          0x0c
 157
 158         uint8_t         unknown;                // always 0x01
 159         uint16_t        interval;
 160         uint32_t        startTime;
 161         uint32_t        endTime;                // 0xFFFFFFFF for never
 162
 163         union Additional
 164         {
 165                 // Note: blank fields should be set to 0
 166
 167                 struct Day
 168                 {
 169                         uint8_t day[6];         // always zeros!
 170                 } __attribute__ ((packed)) day;
 171
 172                 struct MonthByDate
 173                 {
 174                         uint8_t monthDay;       // day of month to recur on
 175                                                 // (1-31)
 176                         uint8_t blank[5];
 177                 } __attribute__ ((packed)) month_by_date;
 178
 179                 struct MonthByDay
 180                 {
 181                         uint8_t weekDay;        // day of week to recur on (0-6)
 182                         uint8_t week;           // week of month to recur on
 183                                                 // (1 to 5, first week, second
 184                                                 // week, etc)
 185                         uint8_t blank[4];
 186                 } __attribute__ ((packed)) month_by_day;
 187
 188                 struct YearByDate
 189                 {
 190                         uint8_t monthDay;       // day of month to recur on
 191                                                 // (1-31)
 192                         uint8_t blank;
 193                         uint8_t month;          // month to recur on (1-12)
 194                         uint8_t blank_[3];
 195                 } __attribute__ ((packed)) year_by_date;
 196
 197                 struct YearByDay
 198                 {
 199                         uint8_t weekDay;        // day of week to recur on (0-6)
 200                         uint8_t week;           // week of month (1 to 5)
 201                         uint8_t month;          // (1-12)
 202                         uint8_t blank[3];
 203                 } __attribute__ ((packed)) year_by_day;
 204
 205                 struct Week
 206                 {
 207                         uint8_t days;           // bitmask
 208                         #define CRDF_WD_SUN     0x01
 209                         #define CRDF_WD_MON     0x02
 210                         #define CRDF_WD_TUE     0x04
 211                         #define CRDF_WD_WED     0x08
 212                         #define CRDF_WD_THU     0x10
 213                         #define CRDF_WD_FRI     0x20
 214                         #define CRDF_WD_SAT     0x40
 215
 216                         uint8_t blank[5];
 217                 } __attribute__ ((packed)) week;
 218
 219         } __attribute__ ((packed)) u;
 220
 221 } __attribute__ ((packed));
 222 #define CALENDAR_RECURRENCE_DATA_FIELD_SIZE     sizeof(Barry::Protocol::CalendarRecurrenceDataField)
 223
 224
 225
 226 ///////////////////////////////////////////////////////////////////////////////
 227 // Packed field structures - odd format used with Service Book records
 228
 229 struct PackedField_02
 230 {
 231         uint8_t         code;
 232         uint8_t         size;
 233         uint8_t         type;
 234         uint8_t         raw[1];
 235 } __attribute__ ((packed));
 236 #define PACKED_FIELD_02_HEADER_SIZE     (sizeof(Barry::Protocol::PackedField_02) - 1)
 237
 238 struct PackedField_10
 239 {
 240         uint8_t         type;
 241         uint8_t         size;
 242         uint8_t         raw[1];
 243 } __attribute__ ((packed));
 244 #define PACKED_FIELD_10_HEADER_SIZE     (sizeof(Barry::Protocol::PackedField_10) - 1)
 245
 246
 247
 248
 249 ///////////////////////////////////////////////////////////////////////////////
 250 // Service Book field and record structures
 251
 252 struct ServiceBookConfigField
 253 {
 254         uint8_t         format;
 255         uint8_t         fields[1];
 256 } __attribute__ ((packed));
 257 #define SERVICE_BOOK_CONFIG_FIELD_HEADER_SIZE (sizeof(Barry::Protocol::ServiceBookConfigField) - 1)
 258
 259
 260 ///////////////////////////////////////////////////////////////////////////////
 261 // DB Command Parameter structures
 262
 263 struct DBC_Record
 264 {
 265         uint16_t        recordIndex;    // index comes from RecordStateTable
 266         uint8_t         data[1];
 267 } __attribute__ ((packed));
 268 #define DBC_RECORD_HEADER_SIZE          (sizeof(Barry::Protocol::DBC_Record) - 1)
 269
 270 struct DBC_RecordFlags
 271 {
 272         uint8_t         unknown;
 273         uint16_t        index;
 274         uint8_t         unknown2[5];
 275 } __attribute__ ((packed));
 276 #define DBC_RECORD_FLAGS_SIZE           (sizeof(Barry::Protocol::DBC_RecordFlags))
 277
 278 struct DBC_TaggedUpload
 279 {
 280         uint8_t         rectype;                // it is unknown exactly what
 281                                                 // this field does, but it
 282                                                 // shows up here and in the
 283                                                 // RecordStateTable, and
 284                                                 // for some of the records
 285                                                 // they must match when writing
 286         uint32_t        uniqueId;
 287         uint8_t         unknown2;
 288         uint8_t         data[1];
 289 } __attribute__ ((packed));
 290 #define DBC_TAGGED_UPLOAD_HEADER_SIZE   (sizeof(Barry::Protocol::DBC_TaggedUpload) - 1)
 291
 292 struct DBC_IndexedUpload
 293 {
 294         uint8_t         unknown;        // observed: 00 or 05
 295         uint16_t        index;
 296         uint8_t         data[1];
 297 } __attribute__ ((packed));
 298 #define DBC_INDEXED_UPLOAD_HEADER_SIZE  (sizeof(Barry::Protocol::DBC_IndexedUpload) - 1)
 299
 300 struct PasswordChallenge
 301 {
 302         uint8_t         remaining_tries;        // number of password attempts
 303                                                 // the device will accept before
 304                                                 // committing suicide...
 305                                                 // starts at 10 and counts down
 306                                                 // on each bad password
 307         uint8_t         unknown;                // observed as 0... probably just
 308                                                 // the top byte of a uint16
 309                                                 // remaining_tries, but I don't
 310                                                 // want to take that chance
 311         uint16_t        param;                  // seems to be a secondary command
 312                                                 // of some kind, observed as 0x14
 313                                                 // or 0x04, but purpose unknown
 314                                                 // possibly a send/receive flag
 315                                                 // bit (0x10/0x00)
 316         union Hash
 317         {
 318                 uint32_t        seed;
 319                 uint8_t         hash[20];
 320         } __attribute__ ((packed)) u;
 321
 322 } __attribute__ ((packed));
 323 #define PASSWORD_CHALLENGE_HEADER_SIZE  (sizeof(Barry::Protocol::PasswordChallenge) - sizeof(Barry::Protocol::PasswordChallenge::Hash))
 324 #define PASSWORD_CHALLENGE_SEED_SIZE    (PASSWORD_CHALLENGE_HEADER_SIZE + sizeof(uint32_t))
 325 #define PASSWORD_CHALLENGE_SIZE         (sizeof(Barry::Protocol::PasswordChallenge))
 326
 327 struct AttributeFetch
 328 {
 329         uint16_t        object;
 330         uint16_t        attribute;
 331         uint8_t         raw[1];                 // used only in response
 332 } __attribute__ ((packed));
 333 #define ATTRIBUTE_FETCH_COMMAND_SIZE    (sizeof(Barry::Protocol::AttributeFetch) - 1)
 334
 335 struct ModeSelect
 336 {
 337         uint8_t         name[16];
 338         struct ResponseBlock
 339         {
 340                 uint8_t         unknown[20];
 341         } __attribute__ ((packed)) response;
 342 } __attribute__ ((packed));
 343
 344
 345 ///////////////////////////////////////////////////////////////////////////////
 346 // Protocol command structures
 347
 348 struct SocketCommand
 349 {
 350         uint16_t        socket;
 351         uint8_t         sequence;               // incremented on each socket 0
 352                                                 // communication, replies return
 353                                                 // the same number from command
 354
 355         union PacketData
 356         {
 357
 358                 PasswordChallenge       password;
 359                 AttributeFetch          fetch;
 360                 ModeSelect              mode;
 361                 uint8_t                 raw[1];
 362
 363         } __attribute__ ((packed)) u;
 364 } __attribute__ ((packed));
 365 #define SOCKET_COMMAND_HEADER_SIZE              (sizeof(Barry::Protocol::SocketCommand) - sizeof(Barry::Protocol::SocketCommand::PacketData))
 366
 367 struct SequenceCommand
 368 {
 369         uint8_t         unknown1;
 370         uint8_t         unknown2;
 371         uint8_t         unknown3;
 372         uint32_t        sequenceId;
 373 } __attribute__ ((packed));
 374
 375 struct DBCommand
 376 {
 377         uint8_t         operation;      // see below
 378         uint16_t        databaseId;     // value from the Database Database
 379
 380         union Parameters
 381         {
 382
 383                 DBC_Record              record;
 384                 DBC_RecordFlags         flags;
 385                 DBC_TaggedUpload        tag_upload;
 386                 DBC_IndexedUpload       index_upload;
 387                 uint8_t                 raw[1];
 388
 389         } __attribute__ ((packed)) u;
 390 } __attribute__ ((packed));
 391 #define DB_COMMAND_HEADER_SIZE          (sizeof(Barry::Protocol::DBCommand) - sizeof(Barry::Protocol::DBCommand::Parameters))
 392
 393
 394
 395 ///////////////////////////////////////////////////////////////////////////////
 396 // Protocol response parameter structures
 397
 398 struct DBR_OldDBDBRecord
 399 {
 400         uint16_t        count;                  // number of fields in record
 401         OldDBDBField    field[1];
 402 } __attribute__ ((packed));
 403 #define OLD_DBDB_RECORD_HEADER_SIZE     (sizeof(Barry::Protocol::DBR_OldDBDBRecord) - sizeof(Barry::Protocol::OldDBDBField))
 404
 405 struct DBR_DBDBRecord
 406 {
 407         uint16_t        count;
 408         uint8_t         unknown[3];
 409         DBDBField       field[1];
 410 } __attribute__ ((packed));
 411 #define DBDB_RECORD_HEADER_SIZE         (sizeof(Barry::Protocol::DBR_DBDBRecord) - sizeof(Barry::Protocol::DBDBField))
 412
 413 // Records with a uniqueId.  This covers the following records:
 414 //
 415 //      Old Contact records
 416 //      Old Service Book records
 417 //      Old Calendar records
 418 //
 419 struct DBR_OldTaggedRecord
 420 {
 421         uint8_t         rectype;
 422         uint16_t        index;
 423         uint32_t        uniqueId;
 424         uint8_t         unknown2;
 425
 426         union TaggedData
 427         {
 428                 CommonField     field[1];
 429         } __attribute__ ((packed)) u;
 430 } __attribute__ ((packed));
 431 #define DBR_OLD_TAGGED_RECORD_HEADER_SIZE (sizeof(Barry::Protocol::DBR_OldTaggedRecord) - sizeof(Barry::Protocol::DBR_OldTaggedRecord::TaggedData))
 432
 433 struct MessageRecord
 434 {
 435         uint8_t         field1;         // always 'j'
 436         uint32_t        field2;         // always 0x00000000
 437         uint32_t        flags;          // flags
 438         uint32_t        field4;         // normal email and pin recv this is 0x7ff
 439                                         // changes on sent and reply to 0x01ffffff
 440                                         // and 0x003fffff on pin send
 441         uint32_t        field5;         // always 0x00000000
 442         uint32_t        field6;         // always 0x00000000
 443         uint32_t        field7;         // always 0x00000000
 444         uint32_t        field8;         // always 0x00000000
 445         uint16_t        field9;         // always 0x0000
 446
 447         uint16_t        dateReceived;   // the first two of these time fields are always the same
 448         uint16_t        timeReceived;   //
 449         uint16_t        dateDuplicate;  // On mail sent from the BB all three fields are identical
 450         uint16_t        timeDuplicate;  // (time sent)
 451         uint16_t        dateSent;
 452         uint16_t        timeSent;
 453
 454         uint16_t        priority;       // priority field
 455         uint32_t        field14;        // always 0x00000000
 456         uint32_t        field15;        // always 0x00000000
 457         uint16_t        field16;        // always 0x0000
 458         uint32_t        field13;        // PIN reply 0x00000000 other time 0xffffffff or 0xfffffffe
 459         uint16_t        messageSize;    // Message size, 0x0000 if Reply or Saved, 0xffff if below ????
 460         uint32_t        field18;        // 0x0's and 0xF'x
 461         uint32_t        field19;        // 0x0's and 0xF's
 462         uint16_t        field20;        // always 0x0000
 463         uint16_t        field21;        // 0x01 unless PIN reply then 0x00
 464         uint32_t        inReplyTo;      // reply to message?
 465         uint32_t        field22;        // always 0x00000000
 466         uint16_t        field23;        // FIXME
 467
 468         uint32_t        folderOne;      // these are the 'folders' the message is in
 469         uint32_t        folderTwo;      //
 470
 471         uint16_t        replyMessageFlags;      // 0xfffe on recvd messages
 472                                         // 0x001b on reply
 473                                         // 0x0015 on send
 474                                         // 0x3 pin send
 475                                         // 0x2 on pin recv
 476         uint16_t        field27;        // set to 0x00000004 on PIN reply, 0x00000005 otherwise
 477         uint32_t        headerUID;      // yet another copy of the UID (RecId)
 478
 479         uint32_t        field29;        // always 0x00000000
 480         uint16_t        field30;        // always 0x0002
 481         uint16_t        field31;        // always 0x00000000
 482         uint16_t        field32;        // always 0x0004
 483         uint16_t        field34;        // always 0x0000
 484         uint8_t         field33;        // always 'd'
 485         uint32_t        timeBlock;      // FIXME
 486         CommonField     field[1];
 487 } __attribute__ ((packed));
 488 #define MESSAGE_RECORD_HEADER_SIZE (sizeof(Barry::Protocol::MessageRecord) - sizeof(Barry::Protocol::CommonField))
 489
 490
 491
 492 ///////////////////////////////////////////////////////////////////////////////
 493 // Protocol response structures
 494
 495 struct DBResponse
 496 {
 497         uint8_t         operation;
 498
 499         union Parameters
 500         {
 501
 502                 DBR_OldTaggedRecord     tagged;
 503                 DBR_OldDBDBRecord       old_dbdb;
 504                 DBR_DBDBRecord          dbdb;
 505
 506         } __attribute__ ((packed)) u;
 507
 508 } __attribute__ ((packed));
 509 #define DB_RESPONSE_HEADER_SIZE         (sizeof(Barry::Protocol::DBResponse) - sizeof(Barry::Protocol::DBResponse::Parameters))
 510
 511
 512
 513 ///////////////////////////////////////////////////////////////////////////////
 514 // Database access command structure
 515
 516 // even fragmented packets have a tableCmd
 517 struct DBAccess
 518 {
 519         uint8_t         tableCmd;
 520
 521         union DBData
 522         {
 523                 DBCommand               command;
 524                 DBResponse              response;
 525                 CommandTableField       table[1];
 526                 uint8_t                 return_code;
 527                 uint8_t                 fragment[1];
 528
 529         } __attribute__ ((packed)) u;
 530 } __attribute__ ((packed));
 531 #define SB_DBACCESS_HEADER_SIZE                 (sizeof(Barry::Protocol::DBAccess) - sizeof(Barry::Protocol::DBAccess::DBData))
 532 #define SB_DBACCESS_RETURN_CODE_SIZE            (1)
 533
 534
 535
 536 ///////////////////////////////////////////////////////////////////////////////
 537 // Main packet struct
 538
 539 struct Packet
 540 {
 541         uint16_t        socket;         // socket ID... 0 exists by default
 542         uint16_t        size;           // total size of data packet
 543         uint8_t         command;
 544
 545         union PacketData
 546         {
 547
 548                 SocketCommand           socket;
 549                 SequenceCommand         sequence;
 550                 DBAccess                db;
 551                 uint8_t                 raw[1];
 552
 553         } __attribute__ ((packed)) u;
 554 } __attribute__ ((packed));
 555 #define SB_PACKET_HEADER_SIZE                   (sizeof(Barry::Protocol::Packet) - sizeof(Barry::Protocol::Packet::PacketData))
 556
 557 // minimum required sizes for various responses
 558 #define MIN_PACKET_SIZE         6
 559
 560
 561 // maximum sizes
 562 #define MAX_PACKET_SIZE         0x400   // anything beyond this needs to be
 563                                         // fragmented
 564
 565 /////////////////////////////////////////////////////////////////////////////
 566 //
 567 // various useful sizes
 568 //
 569
 570 #define SB_PACKET_DBACCESS_HEADER_SIZE          (SB_PACKET_HEADER_SIZE + SB_DBACCESS_HEADER_SIZE)
 571 #define SB_FRAG_HEADER_SIZE                     SB_PACKET_DBACCESS_HEADER_SIZE
 572
 573 #define SB_PACKET_COMMAND_HEADER_SIZE           (SB_PACKET_DBACCESS_HEADER_SIZE + DB_COMMAND_HEADER_SIZE)
 574 #define SB_PACKET_RESPONSE_HEADER_SIZE          (SB_PACKET_DBACCESS_HEADER_SIZE + DB_RESPONSE_HEADER_SIZE)
 575
 576 #define SB_PACKET_DBDB_HEADER_SIZE              (SB_PACKET_RESPONSE_HEADER_SIZE + DBDB_RECORD_HEADER_SIZE)
 577 #define SB_PACKET_OLD_DBDB_HEADER_SIZE          (SB_PACKET_RESPONSE_HEADER_SIZE + OLD_DBDB_RECORD_HEADER_SIZE)
 578
 579 #define SB_PACKET_UPLOAD_HEADER_SIZE            (SB_PACKET_DBACCESS_HEADER_SIZE + UPLOAD_HEADER_SIZE)
 580
 581 #define SB_SEQUENCE_PACKET_SIZE                 (SB_PACKET_HEADER_SIZE + sizeof(Barry::Protocol::SequenceCommand))
 582 #define SB_SOCKET_PACKET_HEADER_SIZE            (SB_PACKET_HEADER_SIZE + SOCKET_COMMAND_HEADER_SIZE)
 583 #define SB_MODE_PACKET_COMMAND_SIZE             (SB_SOCKET_PACKET_HEADER_SIZE + sizeof(Barry::Protocol::ModeSelect) - sizeof(Barry::Protocol::ModeSelect::ResponseBlock))
 584 #define SB_MODE_PACKET_RESPONSE_SIZE            (SB_SOCKET_PACKET_HEADER_SIZE + sizeof(Barry::Protocol::ModeSelect))
 585
 586
 587 // Macros
 588 #define COMMAND(data)                           (((const Barry::Protocol::Packet *)data.GetData())->command)
 589 #define IS_COMMAND(data, cmd)                   (COMMAND(data) == cmd)
 590 #define MAKE_PACKET(var, data)                  const Barry::Protocol::Packet *var = (const Barry::Protocol::Packet *) data.GetData()
 591 #define MAKE_PACKETPTR_BUF(var, ptr)            Barry::Protocol::Packet *var = (Barry::Protocol::Packet *)ptr
 592 #define MAKE_RECORD(type,var,data,off)          type *var = (type *) (data.GetData() + (off))
 593 #define MAKE_RECORD_PTR(type,var,data,off)      type *var = (type *) (data + (off))
 594
 595 // fragmentation protocol
 596 // send DATA first, then keep sending DATA packets, FRAGMENTing
 597 // as required until finished, then send DONE.  Both sides behave
 598 // this way, so different sized data can be sent in both
 599 // directions
 600 //
 601 // the fragmented piece only has a the param header, and then continues
 602 // right on with the data
 603
 604
 605
 606 // checks packet size and throws BError if not right
 607 void CheckSize(const Barry::Data &packet, size_t requiredsize = MIN_PACKET_SIZE);
 608 unsigned int GetSize(const Barry::Data &packet);
 609
 610 }} // namespace Barry::Protocol
 611
 612 #endif
 613