src/clientserver.h

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #ifndef CLIENTSERVER_HEADER
  21 #define CLIENTSERVER_HEADER
  22 #include "util/string.h"
  23
  24 /*
  25         changes by PROTOCOL_VERSION:
  26
  27         PROTOCOL_VERSION 3:
  28                 Base for writing changes here
  29         PROTOCOL_VERSION 4:
  30                 Add TOCLIENT_MEDIA
  31                 Add TOCLIENT_TOOLDEF
  32                 Add TOCLIENT_NODEDEF
  33                 Add TOCLIENT_CRAFTITEMDEF
  34                 Add TOSERVER_INTERACT
  35                 Obsolete TOSERVER_CLICK_ACTIVEOBJECT
  36                 Obsolete TOSERVER_GROUND_ACTION
  37         PROTOCOL_VERSION 5:
  38                 Make players to be handled mostly as ActiveObjects
  39         PROTOCOL_VERSION 6:
  40                 Only non-cached textures are sent
  41         PROTOCOL_VERSION 7:
  42                 Add TOCLIENT_ITEMDEF
  43                 Obsolete TOCLIENT_TOOLDEF
  44                 Obsolete TOCLIENT_CRAFTITEMDEF
  45                 Compress the contents of TOCLIENT_ITEMDEF and TOCLIENT_NODEDEF
  46         PROTOCOL_VERSION 8:
  47                 Digging based on item groups
  48                 Many things
  49         PROTOCOL_VERSION 9:
  50                 ContentFeatures and NodeDefManager use a different serialization
  51                     format; better for future version cross-compatibility
  52                 Many things
  53         PROTOCOL_VERSION 10:
  54                 TOCLIENT_PRIVILEGES
  55                 Version raised to force 'fly' and 'fast' privileges into effect.
  56                 Node metadata change (came in later; somewhat incompatible)
  57         PROTOCOL_VERSION 11:
  58                 TileDef in ContentFeatures
  59                 Nodebox drawtype
  60                 (some dev snapshot)
  61                 TOCLIENT_INVENTORY_FORMSPEC
  62                 (0.4.0, 0.4.1)
  63         PROTOCOL_VERSION 12:
  64                 TOSERVER_INVENTORY_FIELDS
  65                 16-bit node ids
  66                 TOCLIENT_DETACHED_INVENTORY
  67         PROTOCOL_VERSION 13:
  68                 InventoryList field "Width" (deserialization fails with old versions)
  69         PROTOCOL_VERSION 14:
  70                 Added transfer of player pressed keys to the server
  71                 Added new messages for mesh and bone animation, as well as attachments
  72                 GENERIC_CMD_SET_ANIMATION
  73                 GENERIC_CMD_SET_BONE_POSITION
  74                 GENERIC_CMD_SET_ATTACHMENT
  75         PROTOCOL_VERSION 15:
  76                 Serialization format changes
  77         PROTOCOL_VERSION 16:
  78                 TOCLIENT_SHOW_FORMSPEC
  79         PROTOCOL_VERSION 17:
  80                 Serialization format change: include backface_culling flag in TileDef
  81                 Added rightclickable field in nodedef
  82                 TOCLIENT_SPAWN_PARTICLE
  83                 TOCLIENT_ADD_PARTICLESPAWNER
  84                 TOCLIENT_DELETE_PARTICLESPAWNER
  85         PROTOCOL_VERSION 18:
  86                 damageGroups added to ToolCapabilities
  87                 sound_place added to ItemDefinition
  88         PROTOCOL_VERSION 19:
  89                 GENERIC_CMD_SET_PHYSICS_OVERRIDE
  90         PROTOCOL_VERSION 20:
  91                 TOCLIENT_HUDADD
  92                 TOCLIENT_HUDRM
  93                 TOCLIENT_HUDCHANGE
  94                 TOCLIENT_HUD_SET_FLAGS
  95         PROTOCOL_VERSION 21:
  96                 TOCLIENT_BREATH
  97                 TOSERVER_BREATH
  98                 range added to ItemDefinition
  99                 drowning, leveled and liquid_range added to ContentFeatures
 100                 stepheight and collideWithObjects added to object properties
 101                 version, heat and humidity transfer in MapBock
 102                 automatic_face_movement_dir and automatic_face_movement_dir_offset
 103                         added to object properties
 104         PROTOCOL_VERSION 22:
 105                 add swap_node
 106         PROTOCOL_VERSION 23:
 107                 TOSERVER_CLIENT_READY
 108 */
 109
 110 #define LATEST_PROTOCOL_VERSION 23
 111
 112 // Server's supported network protocol range
 113 #define SERVER_PROTOCOL_VERSION_MIN 13
 114 #define SERVER_PROTOCOL_VERSION_MAX LATEST_PROTOCOL_VERSION
 115
 116 // Client's supported network protocol range
 117 #define CLIENT_PROTOCOL_VERSION_MIN 13
 118 #define CLIENT_PROTOCOL_VERSION_MAX LATEST_PROTOCOL_VERSION
 119
 120 // Constant that differentiates the protocol from random data and other protocols
 121 #define PROTOCOL_ID 0x4f457403
 122
 123 #define PASSWORD_SIZE 28       // Maximum password length. Allows for
 124                                // base64-encoded SHA-1 (27+\0).
 125
 126 #define FORMSPEC_API_VERSION 1
 127 #define FORMSPEC_VERSION_STRING "formspec_version[" TOSTRING(FORMSPEC_API_VERSION) "]"
 128
 129 #define TEXTURENAME_ALLOWED_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.-"
 130
 131 enum ToClientCommand
 132 {
 133         TOCLIENT_INIT = 0x10,
 134         /*
 135                 Server's reply to TOSERVER_INIT.
 136                 Sent second after connected.
 137
 138                 [0] u16 TOSERVER_INIT
 139                 [2] u8 deployed version
 140                 [3] v3s16 player's position + v3f(0,BS/2,0) floatToInt'd
 141                 [12] u64 map seed (new as of 2011-02-27)
 142                 [20] f1000 recommended send interval (in seconds) (new as of 14)
 143
 144                 NOTE: The position in here is deprecated; position is
 145                       explicitly sent afterwards
 146         */
 147
 148         TOCLIENT_BLOCKDATA = 0x20, //TODO: Multiple blocks
 149         TOCLIENT_ADDNODE = 0x21,
 150         /*
 151                 u16 command
 152                 v3s16 position
 153                 serialized mapnode
 154                 u8 keep_metadata // Added in protocol version 22
 155         */
 156         TOCLIENT_REMOVENODE = 0x22,
 157
 158         TOCLIENT_PLAYERPOS = 0x23, // Obsolete
 159         /*
 160                 [0] u16 command
 161                 // Followed by an arbitary number of these:
 162                 // Number is determined from packet length.
 163                 [N] u16 peer_id
 164                 [N+2] v3s32 position*100
 165                 [N+2+12] v3s32 speed*100
 166                 [N+2+12+12] s32 pitch*100
 167                 [N+2+12+12+4] s32 yaw*100
 168         */
 169
 170         TOCLIENT_PLAYERINFO = 0x24, // Obsolete
 171         /*
 172                 [0] u16 command
 173                 // Followed by an arbitary number of these:
 174                 // Number is determined from packet length.
 175                 [N] u16 peer_id
 176                 [N] char[20] name
 177         */
 178
 179         TOCLIENT_OPT_BLOCK_NOT_FOUND = 0x25, // Obsolete
 180
 181         TOCLIENT_SECTORMETA = 0x26, // Obsolete
 182         /*
 183                 [0] u16 command
 184                 [2] u8 sector count
 185                 [3...] v2s16 pos + sector metadata
 186         */
 187
 188         TOCLIENT_INVENTORY = 0x27,
 189         /*
 190                 [0] u16 command
 191                 [2] serialized inventory
 192         */
 193
 194         TOCLIENT_OBJECTDATA = 0x28, // Obsolete
 195         /*
 196                 Sent as unreliable.
 197
 198                 u16 command
 199                 u16 number of player positions
 200                 for each player:
 201                         u16 peer_id
 202                         v3s32 position*100
 203                         v3s32 speed*100
 204                         s32 pitch*100
 205                         s32 yaw*100
 206                 u16 count of blocks
 207                 for each block:
 208                         v3s16 blockpos
 209                         block objects
 210         */
 211
 212         TOCLIENT_TIME_OF_DAY = 0x29,
 213         /*
 214                 u16 command
 215                 u16 time (0-23999)
 216                 Added in a later version:
 217                 f1000 time_speed
 218         */
 219
 220         // (oops, there is some gap here)
 221
 222         TOCLIENT_CHAT_MESSAGE = 0x30,
 223         /*
 224                 u16 command
 225                 u16 length
 226                 wstring message
 227         */
 228
 229         TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD = 0x31,
 230         /*
 231                 u16 command
 232                 u16 count of removed objects
 233                 for all removed objects {
 234                         u16 id
 235                 }
 236                 u16 count of added objects
 237                 for all added objects {
 238                         u16 id
 239                         u8 type
 240                         u32 initialization data length
 241                         string initialization data
 242                 }
 243         */
 244
 245         TOCLIENT_ACTIVE_OBJECT_MESSAGES = 0x32,
 246         /*
 247                 u16 command
 248                 for all objects
 249                 {
 250                         u16 id
 251                         u16 message length
 252                         string message
 253                 }
 254         */
 255
 256         TOCLIENT_HP = 0x33,
 257         /*
 258                 u16 command
 259                 u8 hp
 260         */
 261
 262         TOCLIENT_MOVE_PLAYER = 0x34,
 263         /*
 264                 u16 command
 265                 v3f1000 player position
 266                 f1000 player pitch
 267                 f1000 player yaw
 268         */
 269
 270         TOCLIENT_ACCESS_DENIED = 0x35,
 271         /*
 272                 u16 command
 273                 u16 reason_length
 274                 wstring reason
 275         */
 276
 277         TOCLIENT_PLAYERITEM = 0x36, // Obsolete
 278         /*
 279                 u16 command
 280                 u16 count of player items
 281                 for all player items {
 282                         u16 peer id
 283                         u16 length of serialized item
 284                         string serialized item
 285                 }
 286         */
 287
 288         TOCLIENT_DEATHSCREEN = 0x37,
 289         /*
 290                 u16 command
 291                 u8 bool set camera point target
 292                 v3f1000 camera point target (to point the death cause or whatever)
 293         */
 294
 295         TOCLIENT_MEDIA = 0x38,
 296         /*
 297                 u16 command
 298                 u16 total number of texture bunches
 299                 u16 index of this bunch
 300                 u32 number of files in this bunch
 301                 for each file {
 302                         u16 length of name
 303                         string name
 304                         u32 length of data
 305                         data
 306                 }
 307                 u16 length of remote media server url (if applicable)
 308                 string url
 309         */
 310
 311         TOCLIENT_TOOLDEF = 0x39,
 312         /*
 313                 u16 command
 314                 u32 length of the next item
 315                 serialized ToolDefManager
 316         */
 317
 318         TOCLIENT_NODEDEF = 0x3a,
 319         /*
 320                 u16 command
 321                 u32 length of the next item
 322                 serialized NodeDefManager
 323         */
 324
 325         TOCLIENT_CRAFTITEMDEF = 0x3b,
 326         /*
 327                 u16 command
 328                 u32 length of the next item
 329                 serialized CraftiItemDefManager
 330         */
 331
 332         TOCLIENT_ANNOUNCE_MEDIA = 0x3c,
 333
 334         /*
 335                 u16 command
 336                 u32 number of files
 337                 for each texture {
 338                         u16 length of name
 339                         string name
 340                         u16 length of sha1_digest
 341                         string sha1_digest
 342                 }
 343         */
 344
 345         TOCLIENT_ITEMDEF = 0x3d,
 346         /*
 347                 u16 command
 348                 u32 length of next item
 349                 serialized ItemDefManager
 350         */
 351
 352         TOCLIENT_PLAY_SOUND = 0x3f,
 353         /*
 354                 u16 command
 355                 s32 sound_id
 356                 u16 len
 357                 u8[len] sound name
 358                 s32 gain*1000
 359                 u8 type (0=local, 1=positional, 2=object)
 360                 s32[3] pos_nodes*10000
 361                 u16 object_id
 362                 u8 loop (bool)
 363         */
 364
 365         TOCLIENT_STOP_SOUND = 0x40,
 366         /*
 367                 u16 command
 368                 s32 sound_id
 369         */
 370
 371         TOCLIENT_PRIVILEGES = 0x41,
 372         /*
 373                 u16 command
 374                 u16 number of privileges
 375                 for each privilege
 376                         u16 len
 377                         u8[len] privilege
 378         */
 379
 380         TOCLIENT_INVENTORY_FORMSPEC = 0x42,
 381         /*
 382                 u16 command
 383                 u32 len
 384                 u8[len] formspec
 385         */
 386
 387         TOCLIENT_DETACHED_INVENTORY = 0x43,
 388         /*
 389                 [0] u16 command
 390                 u16 len
 391                 u8[len] name
 392                 [2] serialized inventory
 393         */
 394
 395         TOCLIENT_SHOW_FORMSPEC = 0x44,
 396         /*
 397                 [0] u16 command
 398                 u32 len
 399                 u8[len] formspec
 400                 u16 len
 401                 u8[len] formname
 402         */
 403
 404         TOCLIENT_MOVEMENT = 0x45,
 405         /*
 406                 u16 command
 407                 f1000 movement_acceleration_default
 408                 f1000 movement_acceleration_air
 409                 f1000 movement_acceleration_fast
 410                 f1000 movement_speed_walk
 411                 f1000 movement_speed_crouch
 412                 f1000 movement_speed_fast
 413                 f1000 movement_speed_climb
 414                 f1000 movement_speed_jump
 415                 f1000 movement_liquid_fluidity
 416                 f1000 movement_liquid_fluidity_smooth
 417                 f1000 movement_liquid_sink
 418                 f1000 movement_gravity
 419         */
 420
 421         TOCLIENT_SPAWN_PARTICLE = 0x46,
 422         /*
 423                 u16 command
 424                 v3f1000 pos
 425                 v3f1000 velocity
 426                 v3f1000 acceleration
 427                 f1000 expirationtime
 428                 f1000 size
 429                 u8 bool collisiondetection
 430                 u8 bool vertical
 431                 u32 len
 432                 u8[len] texture
 433         */
 434
 435         TOCLIENT_ADD_PARTICLESPAWNER = 0x47,
 436         /*
 437                 u16 command
 438                 u16 amount
 439                 f1000 spawntime
 440                 v3f1000 minpos
 441                 v3f1000 maxpos
 442                 v3f1000 minvel
 443                 v3f1000 maxvel
 444                 v3f1000 minacc
 445                 v3f1000 maxacc
 446                 f1000 minexptime
 447                 f1000 maxexptime
 448                 f1000 minsize
 449                 f1000 maxsize
 450                 u8 bool collisiondetection
 451                 u8 bool vertical
 452                 u32 len
 453                 u8[len] texture
 454                 u32 id
 455         */
 456
 457         TOCLIENT_DELETE_PARTICLESPAWNER = 0x48,
 458         /*
 459                 u16 command
 460                 u32 id
 461         */
 462
 463         TOCLIENT_HUDADD = 0x49,
 464         /*
 465                 u16 command
 466                 u32 id
 467                 u8 type
 468                 v2f1000 pos
 469                 u32 len
 470                 u8[len] name
 471                 v2f1000 scale
 472                 u32 len2
 473                 u8[len2] text
 474                 u32 number
 475                 u32 item
 476                 u32 dir
 477                 v2f1000 align
 478                 v2f1000 offset
 479                 v3f1000 world_pos
 480                 v2s32 size
 481         */
 482
 483         TOCLIENT_HUDRM = 0x4a,
 484         /*
 485                 u16 command
 486                 u32 id
 487         */
 488
 489         TOCLIENT_HUDCHANGE = 0x4b,
 490         /*
 491                 u16 command
 492                 u32 id
 493                 u8 stat
 494                 [v2f1000 data |
 495                  u32 len
 496                  u8[len] data |
 497                  u32 data]
 498         */
 499
 500         TOCLIENT_HUD_SET_FLAGS = 0x4c,
 501         /*
 502                 u16 command
 503                 u32 flags
 504                 u32 mask
 505         */
 506
 507         TOCLIENT_HUD_SET_PARAM = 0x4d,
 508         /*
 509                 u16 command
 510                 u16 param
 511                 u16 len
 512                 u8[len] value
 513         */
 514
 515         TOCLIENT_BREATH = 0x4e,
 516         /*
 517                 u16 command
 518                 u16 breath
 519         */
 520
 521         TOCLIENT_SET_SKY = 0x4f,
 522         /*
 523                 u16 command
 524                 u8[4] color (ARGB)
 525                 u8 len
 526                 u8[len] type
 527                 u16 count
 528                 foreach count:
 529                         u8 len
 530                         u8[len] param
 531         */
 532
 533         TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO = 0x50,
 534         /*
 535                 u16 command
 536                 u8 do_override (boolean)
 537                 u16 day-night ratio 0...65535
 538         */
 539
 540         TOCLIENT_LOCAL_PLAYER_ANIMATIONS = 0x51,
 541         /*
 542                 u16 command
 543                 v2s32 stand/idle
 544                 v2s32 walk
 545                 v2s32 dig
 546                 v2s32 walk+dig
 547                 f1000 frame_speed
 548         */
 549
 550         TOCLIENT_EYE_OFFSET = 0x52,
 551         /*
 552                 u16 command
 553                 v3f1000 first
 554                 v3f1000 third
 555         */
 556 };
 557
 558 enum ToServerCommand
 559 {
 560         TOSERVER_INIT=0x10,
 561         /*
 562                 Sent first after connected.
 563
 564                 [0] u16 TOSERVER_INIT
 565                 [2] u8 SER_FMT_VER_HIGHEST_READ
 566                 [3] u8[20] player_name
 567                 [23] u8[28] password (new in some version)
 568                 [51] u16 minimum supported network protocol version (added sometime)
 569                 [53] u16 maximum supported network protocol version (added later than the previous one)
 570         */
 571
 572         TOSERVER_INIT2 = 0x11,
 573         /*
 574                 Sent as an ACK for TOCLIENT_INIT.
 575                 After this, the server can send data.
 576
 577                 [0] u16 TOSERVER_INIT2
 578         */
 579
 580         TOSERVER_GETBLOCK=0x20, // Obsolete
 581         TOSERVER_ADDNODE = 0x21, // Obsolete
 582         TOSERVER_REMOVENODE = 0x22, // Obsolete
 583
 584         TOSERVER_PLAYERPOS = 0x23,
 585         /*
 586                 [0] u16 command
 587                 [2] v3s32 position*100
 588                 [2+12] v3s32 speed*100
 589                 [2+12+12] s32 pitch*100
 590                 [2+12+12+4] s32 yaw*100
 591                 [2+12+12+4+4] u32 keyPressed
 592         */
 593
 594         TOSERVER_GOTBLOCKS = 0x24,
 595         /*
 596                 [0] u16 command
 597                 [2] u8 count
 598                 [3] v3s16 pos_0
 599                 [3+6] v3s16 pos_1
 600                 ...
 601         */
 602
 603         TOSERVER_DELETEDBLOCKS = 0x25,
 604         /*
 605                 [0] u16 command
 606                 [2] u8 count
 607                 [3] v3s16 pos_0
 608                 [3+6] v3s16 pos_1
 609                 ...
 610         */
 611
 612         TOSERVER_ADDNODE_FROM_INVENTORY = 0x26, // Obsolete
 613         /*
 614                 [0] u16 command
 615                 [2] v3s16 pos
 616                 [8] u16 i
 617         */
 618
 619         TOSERVER_CLICK_OBJECT = 0x27, // Obsolete
 620         /*
 621                 length: 13
 622                 [0] u16 command
 623                 [2] u8 button (0=left, 1=right)
 624                 [3] v3s16 blockpos
 625                 [9] s16 id
 626                 [11] u16 item
 627         */
 628
 629         TOSERVER_GROUND_ACTION = 0x28, // Obsolete
 630         /*
 631                 length: 17
 632                 [0] u16 command
 633                 [2] u8 action
 634                 [3] v3s16 nodepos_undersurface
 635                 [9] v3s16 nodepos_abovesurface
 636                 [15] u16 item
 637                 actions:
 638                 0: start digging (from undersurface)
 639                 1: place block (to abovesurface)
 640                 2: stop digging (all parameters ignored)
 641                 3: digging completed
 642         */
 643
 644         TOSERVER_RELEASE = 0x29, // Obsolete
 645
 646         // (oops, there is some gap here)
 647
 648         TOSERVER_SIGNTEXT = 0x30, // Old signs, obsolete
 649         /*
 650                 u16 command
 651                 v3s16 blockpos
 652                 s16 id
 653                 u16 textlen
 654                 textdata
 655         */
 656
 657         TOSERVER_INVENTORY_ACTION = 0x31,
 658         /*
 659                 See InventoryAction in inventory.h
 660         */
 661
 662         TOSERVER_CHAT_MESSAGE = 0x32,
 663         /*
 664                 u16 command
 665                 u16 length
 666                 wstring message
 667         */
 668
 669         TOSERVER_SIGNNODETEXT = 0x33, // obsolete
 670         /*
 671                 u16 command
 672                 v3s16 p
 673                 u16 textlen
 674                 textdata
 675         */
 676
 677         TOSERVER_CLICK_ACTIVEOBJECT = 0x34, // Obsolete
 678         /*
 679                 length: 7
 680                 [0] u16 command
 681                 [2] u8 button (0=left, 1=right)
 682                 [3] u16 id
 683                 [5] u16 item
 684         */
 685
 686         TOSERVER_DAMAGE = 0x35,
 687         /*
 688                 u16 command
 689                 u8 amount
 690         */
 691
 692         TOSERVER_PASSWORD=0x36,
 693         /*
 694                 Sent to change password.
 695
 696                 [0] u16 TOSERVER_PASSWORD
 697                 [2] u8[28] old password
 698                 [30] u8[28] new password
 699         */
 700
 701         TOSERVER_PLAYERITEM=0x37,
 702         /*
 703                 Sent to change selected item.
 704
 705                 [0] u16 TOSERVER_PLAYERITEM
 706                 [2] u16 item
 707         */
 708
 709         TOSERVER_RESPAWN=0x38,
 710         /*
 711                 u16 TOSERVER_RESPAWN
 712         */
 713
 714         TOSERVER_INTERACT = 0x39,
 715         /*
 716                 [0] u16 command
 717                 [2] u8 action
 718                 [3] u16 item
 719                 [5] u32 length of the next item
 720                 [9] serialized PointedThing
 721                 actions:
 722                 0: start digging (from undersurface) or use
 723                 1: stop digging (all parameters ignored)
 724                 2: digging completed
 725                 3: place block or item (to abovesurface)
 726                 4: use item
 727
 728                 (Obsoletes TOSERVER_GROUND_ACTION and TOSERVER_CLICK_ACTIVEOBJECT.)
 729         */
 730
 731         TOSERVER_REMOVED_SOUNDS = 0x3a,
 732         /*
 733                 u16 command
 734                 u16 len
 735                 s32[len] sound_id
 736         */
 737
 738         TOSERVER_NODEMETA_FIELDS = 0x3b,
 739         /*
 740                 u16 command
 741                 v3s16 p
 742                 u16 len
 743                 u8[len] form name (reserved for future use)
 744                 u16 number of fields
 745                 for each field:
 746                         u16 len
 747                         u8[len] field name
 748                         u32 len
 749                         u8[len] field value
 750         */
 751
 752         TOSERVER_INVENTORY_FIELDS = 0x3c,
 753         /*
 754                 u16 command
 755                 u16 len
 756                 u8[len] form name (reserved for future use)
 757                 u16 number of fields
 758                 for each field:
 759                         u16 len
 760                         u8[len] field name
 761                         u32 len
 762                         u8[len] field value
 763         */
 764
 765         TOSERVER_REQUEST_MEDIA = 0x40,
 766         /*
 767                 u16 command
 768                 u16 number of files requested
 769                 for each file {
 770                         u16 length of name
 771                         string name
 772                 }
 773          */
 774
 775         TOSERVER_RECEIVED_MEDIA = 0x41,
 776         /*
 777                 u16 command
 778         */
 779
 780         TOSERVER_BREATH = 0x42,
 781         /*
 782                 u16 command
 783                 u16 breath
 784         */
 785
 786         TOSERVER_CLIENT_READY = 0x43,
 787         /*
 788                 u8 major
 789                 u8 minor
 790                 u8 patch
 791                 u8 reserved
 792                 u16 len
 793                 u8[len] full_version_string
 794         */
 795 };
 796
 797 #endif
 798