/* Packet-rdp_rail.c

 * Routines for the RAIL RDP channel

 * Copyright 2023, David Fort <contact@hardening-consulting.com>

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 */

/*

 * See: "[MS-RDPERP] "

 */

#include "config.h"

#include <epan/packet.h>

#include <epan/prefs.h>

#include <epan/conversation.h>

#include <epan/expert.h>

#include <epan/value_string.h>

#include "packet-rdpudp.h"

#define PNAME  "RDP Program virtual channel Protocol"

#define PSNAME "RAIL"

#define PFNAME "rdp_rail"

void proto_register_rdp_rail(void);

void proto_reg_handoff_rdp_rail(void);

static int proto_rdp_rail;

static int hf_rail_orderType;

static int hf_rail_pduLength;

static int hf_rail_caps_handshake_buildNumber;

static int hf_rail_windowId;

static int hf_rail_windowmove_left;

static int hf_rail_windowmove_top;

static int hf_rail_windowmove_right;

static int hf_rail_windowmove_bottom;

static int hf_rail_notify_iconId;

static int hf_rail_notify_message;

static int hf_rail_localmovesize_isMoveSizeStart;

static int hf_rail_localmovesize_moveSizeType;

static int hf_rail_localmovesize_posX;

static int hf_rail_localmovesize_posY;

static int hf_rail_minmaxinfo_maxwidth;

static int hf_rail_minmaxinfo_maxheight;

static int hf_rail_minmaxinfo_maxPosX;

static int hf_rail_minmaxinfo_maxPosY;

static int hf_rail_minmaxinfo_minTrackWidth;

static int hf_rail_minmaxinfo_minTrackHeight;

static int hf_rail_minmaxinfo_maxTrackWidth;

static int hf_rail_minmaxinfo_maxTrackHeight;

static int hf_rail_cloak_cloaked;

static int hf_rail_handshake_flags;

static int hf_rail_handshake_flags_hidef;

static int hf_rail_handshake_flags_ex_spi;

static int hf_rail_handshake_flags_snap;

static int hf_rail_handshake_flags_textscale;

static int hf_rail_handshake_flags_caretblink;

static int hf_rail_handshake_flags_ex_spi2;

static int hf_rail_cstatus_flags;

static int hf_rail_cstatus_flags_allowlocalmove;

static int hf_rail_cstatus_autoreconnect;

static int hf_rail_cstatus_zorder_sync;

static int hf_rail_cstatus_resize_margin;

static int hf_rail_cstatus_hidpi_icons;

static int hf_rail_cstatus_appbar_remoting;

static int hf_rail_cstatus_powerdisplay;

static int hf_rail_cstatus_bidir_cloak;

static int hf_rail_cstatus_suppress_icon_border;

static int hf_rail_activate_enabled;

static int hf_rail_sysparam_server_params;

static int hf_rail_sysparam_client_params;

static int ett_rdp_rail;

static int ett_rdp_rail_handshake_flags;

static int ett_rdp_rail_clientstatus_flags;

enum {

  TS_RAIL_ORDER_EXEC = 0x01,

  TS_RAIL_ORDER_ACTIVATE = 0x02,

  TS_RAIL_ORDER_SYSPARAM = 0x03,

  TS_RAIL_ORDER_SYSCOMMAND = 0x04,

  TS_RAIL_ORDER_HANDSHAKE = 0x05,

  TS_RAIL_ORDER_NOTIFY_EVENT = 0x06,

  TS_RAIL_ORDER_WINDOWMOVE = 0x08,

  TS_RAIL_ORDER_LOCALMOVESIZE = 0x09,

  TS_RAIL_ORDER_MINMAXINFO = 0x0a,

  TS_RAIL_ORDER_CLIENTSTATUS = 0x0b,

  TS_RAIL_ORDER_SYSMENU = 0x0c,

  TS_RAIL_ORDER_LANGBARINFO = 0x0d,

  TS_RAIL_ORDER_EXEC_RESULT = 0x80,

  TS_RAIL_ORDER_GET_APPID_REQ = 0x0e,

  TS_RAIL_ORDER_GET_APPID_RESP = 0x0f,

  TS_RAIL_ORDER_TASKBARINFO = 0x10,

  TS_RAIL_ORDER_LANGUAGEIMEINFO = 0x11,

  TS_RAIL_ORDER_COMPARTMENTINFO = 0x12,

  TS_RAIL_ORDER_HANDSHAKE_EX = 0X13,

  TS_RAIL_ORDER_ZORDER_SYNC = 0x14,

  TS_RAIL_ORDER_CLOAK = 0x15,

  TS_RAIL_ORDER_POWER_DISPLAY_REQUEST = 0x16,

  TS_RAIL_ORDER_SNAP_ARRANGE = 0x17,

  TS_RAIL_ORDER_GET_APPID_RESP_EX = 0x18,

  TS_RAIL_ORDER_TEXTSCALEINFO = 0x19,

  TS_RAIL_ORDER_CARETBLINKINFO = 0x1a

};

enum {

  SPI_SETSCREENSAVEACTIVE = 0x00000011,

  SPI_SETSCREENSAVESECURE = 0x00000077,

  SPI_SETDRAGFULLWINDOWS = 0x00000025,

  SPI_SETKEYBOARDCUES = 0x0000100B,

  SPI_SETKEYBOARDPREF = 0x00000045,

  SPI_SETWORKAREA = 0x0000002F,

  RAIL_SPI_DISPLAYCHANGE = 0x0000F001,

  SPI_SETMOUSEBUTTONSWAP = 0x00000021,

  RAIL_SPI_TASKBARPOS = 0x0000F000,

  SPI_SETHIGHCONTRAST = 0x00000043,

  SPI_SETCARETWIDTH = 0x00002007,

  SPI_SETSTICKYKEYS = 0x0000003B,

  SPI_SETTOGGLEKEYS = 0x00000035,

  SPI_SETFILTERKEYS = 0x00000033,

  RAIL_SPI_DISPLAY_ANIMATIONS_ENABLED = 0x0000F002,

  RAIL_SPI_DISPLAY_ADVANCED_EFFECTS_ENABLED = 0x0000F003,

  RAIL_SPI_DISPLAY_AUTO_HIDE_SCROLLBARS = 0x0000F004,

  RAIL_SPI_DISPLAY_MESSAGE_DURATION = 0x0000F005,

  RAIL_SPI_CLOSED_CAPTION_FONT_COLOR = 0x0000F006,

  RAIL_SPI_CLOSED_CAPTION_FONT_OPACITY = 0x0000F007,

  RAIL_SPI_CLOSED_CAPTION_FONT_SIZE = 0x0000F008,

  RAIL_SPI_CLOSED_CAPTION_FONT_STYLE = 0x0000F009,

  RAIL_SPI_CLOSED_CAPTION_FONT_EDGE_EFFECT = 0x0000F00A,

  RAIL_SPI_CLOSED_CAPTION_BACKGROUND_COLOR = 0x0000F00B,

  RAIL_SPI_CLOSED_CAPTION_BACKGROUND_OPACITY = 0x0000F00C,

  RAIL_SPI_CLOSED_CAPTION_REGION_COLOR = 0x0000F00D,

  RAIL_SPI_CLOSED_CAPTION_REGION_OPACITY = 0x0000F00E,

};

static const value_string rdp_rail_order_vals[] = {

  { TS_RAIL_ORDER_EXEC, "Execute"},

  { TS_RAIL_ORDER_ACTIVATE, "Activate"},

  { TS_RAIL_ORDER_SYSPARAM, "Client system parameters"},

  { TS_RAIL_ORDER_SYSCOMMAND, "System command"},

  { TS_RAIL_ORDER_HANDSHAKE, "Handshake"},

  { TS_RAIL_ORDER_NOTIFY_EVENT, "Notify event"},

  { TS_RAIL_ORDER_WINDOWMOVE, "Window move"},

  { TS_RAIL_ORDER_LOCALMOVESIZE, "Local move size"},

  { TS_RAIL_ORDER_MINMAXINFO, "MinMax info"},

  { TS_RAIL_ORDER_CLIENTSTATUS, "Client status"},

  { TS_RAIL_ORDER_SYSMENU, "System menu"},

  { TS_RAIL_ORDER_LANGBARINFO, "Language bar info"},

  { TS_RAIL_ORDER_EXEC_RESULT, "Exec result"},

  { TS_RAIL_ORDER_GET_APPID_REQ, "Get appId request"},

  { TS_RAIL_ORDER_GET_APPID_RESP, "Get appId response"},

  { TS_RAIL_ORDER_TASKBARINFO, "Taskbar info"},

  { TS_RAIL_ORDER_LANGUAGEIMEINFO, "Language IME info"},

  { TS_RAIL_ORDER_COMPARTMENTINFO, "Compartment info"},

  { TS_RAIL_ORDER_HANDSHAKE_EX, "HandshakeEx"},

  { TS_RAIL_ORDER_ZORDER_SYNC, "Z-order sync"},

  { TS_RAIL_ORDER_CLOAK, "Cloak"},

  { TS_RAIL_ORDER_POWER_DISPLAY_REQUEST, "Power display requet"},

  { TS_RAIL_ORDER_SNAP_ARRANGE, "Snap arrange"},

  { TS_RAIL_ORDER_GET_APPID_RESP_EX, "Get appId response"},

  { TS_RAIL_ORDER_TEXTSCALEINFO, "Text scale info"},

  { TS_RAIL_ORDER_CARETBLINKINFO, "Caret blink info"},

  { 0x0, NULL},

};

static const value_string moveSizeStart_vals[] = {

  { 0x0001, "RAIL_WMSZ_LEFT" },

  { 0x0002, "RAIL_WMSZ_RIGHT" },

  { 0x0003, "RAIL_WMSZ_TOP" },

  { 0x0004, "RAIL_WMSZ_TOPLEFT" },

  { 0x0005, "RAIL_WMSZ_TOPRIGHT" },

  { 0x0006, "RAIL_WMSZ_BOTTOM" },

  { 0x0007, "RAIL_WMSZ_BOTTOMLEFT" },

  { 0x0008, "RAIL_WMSZ_BOTTOMRIGHT" },

  { 0x0009, "RAIL_WMSZ_MOVE" },

  { 0x000A, "RAIL_WMSZ_KEYMOVE" },

  { 0x000B, "RAIL_WMSZ_KEYSIZE" },

  { 0x0, NULL},

};

static const value_string rdp_rail_notify_vals[] = {

  { 0x00000201, "WM_LBUTTONDOWN" },

  { 0x00000202, "WM_LBUTTONUP" },

  { 0x00000204, "WM_RBUTTONDOWN" },

  { 0x00000205, "WM_RBUTTONUP" },

  { 0x0000007B, "WM_CONTEXTMENU" },

  { 0x00000203, "WM_LBUTTONDBLCLK" },

  { 0x00000206, "WM_RBUTTONDBLCLK" },

  { 0x00000400, "NIN_SELECT" },

  { 0x00000401, "NIN_KEYSELECT" },

  { 0x00000402, "NIN_BALLOONSHOW" },

  { 0x00000403, "NIN_BALLOONHIDE" },

  { 0x00000404, "NIN_BALLOONTIMEOUT" },

  { 0x00000405, "NIN_BALLOONUSERCLICK" },

  { 0x0, NULL},

};

static const value_string rdp_rail_server_system_params_vals[] = {

  { SPI_SETSCREENSAVEACTIVE, "SPI_SETSCREENSAVEACTIVE" },

  { SPI_SETSCREENSAVESECURE, "SPI_SETSCREENSAVESECURE" },

  { 0x0, NULL},

};

static const value_string rdp_rail_client_system_params_vals[] = {

  { SPI_SETDRAGFULLWINDOWS, "SPI_SETDRAGFULLWINDOWS" },

  { SPI_SETKEYBOARDCUES, "SPI_SETKEYBOARDCUES" },

  { SPI_SETKEYBOARDPREF, "SPI_SETKEYBOARDPREF" },

  { SPI_SETWORKAREA, "SPI_SETWORKAREA" },

  { RAIL_SPI_DISPLAYCHANGE, "RAIL_SPI_DISPLAYCHANGE" },

  { SPI_SETMOUSEBUTTONSWAP, "SPI_SETMOUSEBUTTONSWAP" },

  { RAIL_SPI_TASKBARPOS, "RAIL_SPI_TASKBARPOS" },

  { SPI_SETHIGHCONTRAST, "SPI_SETHIGHCONTRAST" },

  { SPI_SETCARETWIDTH, "SPI_SETCARETWIDTH" },

  { SPI_SETSTICKYKEYS, "SPI_SETSTICKYKEYS" },

  { SPI_SETTOGGLEKEYS, "SPI_SETTOGGLEKEYS" },

  { SPI_SETFILTERKEYS, "SPI_SETFILTERKEYS" },

  { RAIL_SPI_DISPLAY_ANIMATIONS_ENABLED, "RAIL_SPI_DISPLAY_ANIMATIONS_ENABLED" },

  { RAIL_SPI_DISPLAY_ADVANCED_EFFECTS_ENABLED, "RAIL_SPI_DISPLAY_ADVANCED_EFFECTS_ENABLED" },

  { RAIL_SPI_DISPLAY_AUTO_HIDE_SCROLLBARS, "RAIL_SPI_DISPLAY_AUTO_HIDE_SCROLLBARS" },

  { RAIL_SPI_DISPLAY_MESSAGE_DURATION, "RAIL_SPI_DISPLAY_MESSAGE_DURATION" },

  { RAIL_SPI_CLOSED_CAPTION_FONT_COLOR, "RAIL_SPI_CLOSED_CAPTION_FONT_COLOR" },

  { RAIL_SPI_CLOSED_CAPTION_FONT_OPACITY, "RAIL_SPI_CLOSED_CAPTION_FONT_OPACITY" },

  { RAIL_SPI_CLOSED_CAPTION_FONT_SIZE, "RAIL_SPI_CLOSED_CAPTION_FONT_SIZE" },

  { RAIL_SPI_CLOSED_CAPTION_FONT_STYLE, "RAIL_SPI_CLOSED_CAPTION_FONT_STYLE" },

  { RAIL_SPI_CLOSED_CAPTION_FONT_EDGE_EFFECT, "RAIL_SPI_CLOSED_CAPTION_FONT_EDGE_EFFECT" },

  { RAIL_SPI_CLOSED_CAPTION_BACKGROUND_COLOR, "RAIL_SPI_CLOSED_CAPTION_BACKGROUND_COLOR" },

  { RAIL_SPI_CLOSED_CAPTION_BACKGROUND_OPACITY, "RAIL_SPI_CLOSED_CAPTION_BACKGROUND_OPACITY" },

  { RAIL_SPI_CLOSED_CAPTION_REGION_COLOR, "RAIL_SPI_CLOSED_CAPTION_REGION_COLOR" },

  { RAIL_SPI_CLOSED_CAPTION_REGION_OPACITY, "RAIL_SPI_CLOSED_CAPTION_REGION_OPACITY" },

  { 0x0, NULL},

};

static int

dissect_rdp_rail(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *parent_tree _U_, void *data _U_)

{

  proto_item *item;

  int nextOffset, offset = 0;

  uint32_t cmdId = 0;

  uint32_t pduLength;

  proto_tree *tree;

  uint32_t windowId;

  bool packetToServer = rdp_isServerAddressTarget(pinfo);

  parent_tree = proto_tree_get_root(parent_tree);

  col_set_str(pinfo->cinfo, COL_PROTOCOL, "RAIL");

  col_clear(pinfo->cinfo, COL_INFO);

  pduLength = tvb_get_uint16(tvb, offset + 2, ENC_LITTLE_ENDIAN);

  item = proto_tree_add_item(parent_tree, proto_rdp_rail, tvb, offset, pduLength, ENC_NA);

  tree = proto_item_add_subtree(item, ett_rdp_rail);

  proto_tree_add_item_ret_uint(tree, hf_rail_orderType, tvb, offset, 2, ENC_LITTLE_ENDIAN, &cmdId);

  offset += 2;

  proto_tree_add_item(tree, hf_rail_pduLength, tvb, offset, 2, ENC_LITTLE_ENDIAN);

  offset += 2;

  nextOffset = offset + (pduLength - 4);

  /* packets that start with a windowId */

  switch (cmdId) {

  case TS_RAIL_ORDER_ACTIVATE:

  case TS_RAIL_ORDER_SYSMENU:

  case TS_RAIL_ORDER_SYSCOMMAND:

  case TS_RAIL_ORDER_NOTIFY_EVENT:

  case TS_RAIL_ORDER_GET_APPID_REQ:

  case TS_RAIL_ORDER_MINMAXINFO:

  case TS_RAIL_ORDER_WINDOWMOVE:

  case TS_RAIL_ORDER_LOCALMOVESIZE:

  case TS_RAIL_ORDER_CLOAK:

  case TS_RAIL_ORDER_SNAP_ARRANGE:

  case TS_RAIL_ORDER_GET_APPID_RESP:

  case TS_RAIL_ORDER_GET_APPID_RESP_EX:

  case TS_RAIL_ORDER_ZORDER_SYNC:

    proto_tree_add_item_ret_uint(tree, hf_rail_windowId, tvb, offset, 4, ENC_LITTLE_ENDIAN, &windowId);

    col_add_fstr(pinfo->cinfo, COL_INFO, "%s|windowId=0x%x", val_to_str_const(cmdId, rdp_rail_order_vals, "Unknown RAIL command"),

        windowId);

    offset += 4;

    break;

  default:

    col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(cmdId, rdp_rail_order_vals, "Unknown RAIL command"));

    break;

  }

  /* do the rest of the parsing */

  switch (cmdId) {

  case TS_RAIL_ORDER_EXEC:

    break;

  case TS_RAIL_ORDER_ACTIVATE:

    proto_tree_add_item(tree, hf_rail_activate_enabled, tvb, offset, 1, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_SYSPARAM:

    if (!packetToServer) {

      uint32_t serverParam;

      col_set_str(pinfo->cinfo, COL_INFO, "Server system parameters");

      proto_tree_add_item_ret_uint(tree, hf_rail_sysparam_server_params, tvb, offset, 4, ENC_LITTLE_ENDIAN, &serverParam);

      col_append_fstr(pinfo->cinfo, COL_INFO, "|%s", val_to_str_const(serverParam, rdp_rail_server_system_params_vals, "<unknown server param>"));

      switch(serverParam) {

      case SPI_SETSCREENSAVEACTIVE:

      case SPI_SETSCREENSAVESECURE:

        /* TODO */

        break;

      }

    } else {

      uint32_t clientParam;

      proto_tree_add_item_ret_uint(tree, hf_rail_sysparam_client_params, tvb, offset, 4, ENC_LITTLE_ENDIAN, &clientParam);

      col_append_fstr(pinfo->cinfo, COL_INFO, "|%s", val_to_str_const(clientParam, rdp_rail_client_system_params_vals, "<unknown client param>"));

      switch(clientParam) {

      case SPI_SETDRAGFULLWINDOWS:

      case SPI_SETKEYBOARDCUES:

      case SPI_SETKEYBOARDPREF:

      case SPI_SETWORKAREA:

      case RAIL_SPI_DISPLAYCHANGE:

      case SPI_SETMOUSEBUTTONSWAP:

      case RAIL_SPI_TASKBARPOS:

      case SPI_SETHIGHCONTRAST:

      case SPI_SETCARETWIDTH:

      case SPI_SETSTICKYKEYS:

      case SPI_SETTOGGLEKEYS:

      case SPI_SETFILTERKEYS:

      case RAIL_SPI_DISPLAY_ANIMATIONS_ENABLED:

      case RAIL_SPI_DISPLAY_ADVANCED_EFFECTS_ENABLED:

      case RAIL_SPI_DISPLAY_AUTO_HIDE_SCROLLBARS:

      case RAIL_SPI_DISPLAY_MESSAGE_DURATION:

      case RAIL_SPI_CLOSED_CAPTION_FONT_COLOR:

      case RAIL_SPI_CLOSED_CAPTION_FONT_OPACITY:

      case RAIL_SPI_CLOSED_CAPTION_FONT_SIZE:

      case RAIL_SPI_CLOSED_CAPTION_FONT_STYLE:

      case RAIL_SPI_CLOSED_CAPTION_FONT_EDGE_EFFECT:

      case RAIL_SPI_CLOSED_CAPTION_BACKGROUND_COLOR:

      case RAIL_SPI_CLOSED_CAPTION_BACKGROUND_OPACITY:

      case RAIL_SPI_CLOSED_CAPTION_REGION_COLOR:

      case RAIL_SPI_CLOSED_CAPTION_REGION_OPACITY:

        /* TODO */

        break;

      }

    }

    break;

  case TS_RAIL_ORDER_SYSCOMMAND:

    break;

  case TS_RAIL_ORDER_HANDSHAKE:

    proto_tree_add_item(tree, hf_rail_caps_handshake_buildNumber, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_NOTIFY_EVENT:

    proto_tree_add_item(tree, hf_rail_notify_iconId, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_item(tree, hf_rail_notify_message, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_WINDOWMOVE:

    proto_tree_add_item(tree, hf_rail_windowmove_left, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_windowmove_top, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_windowmove_right, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_windowmove_bottom, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_LOCALMOVESIZE:

    proto_tree_add_item(tree, hf_rail_localmovesize_isMoveSizeStart, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_localmovesize_moveSizeType, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_localmovesize_posX, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_localmovesize_posY, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_MINMAXINFO:

    proto_tree_add_item(tree, hf_rail_minmaxinfo_maxwidth, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_maxheight, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_maxPosX, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_maxPosY, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_minTrackWidth, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_minTrackHeight, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_maxTrackWidth, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    offset += 2;

    proto_tree_add_item(tree, hf_rail_minmaxinfo_maxTrackHeight, tvb, offset, 2, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_CLIENTSTATUS: {

    int *flags[] = {

      &hf_rail_cstatus_flags_allowlocalmove,

      &hf_rail_cstatus_autoreconnect,

      &hf_rail_cstatus_zorder_sync,

      &hf_rail_cstatus_resize_margin,

      &hf_rail_cstatus_hidpi_icons,

      &hf_rail_cstatus_appbar_remoting,

      &hf_rail_cstatus_powerdisplay,

      &hf_rail_cstatus_bidir_cloak,

      &hf_rail_cstatus_suppress_icon_border,

      NULL,

    };

    proto_tree_add_bitmask(tree, tvb, offset, hf_rail_cstatus_flags, ett_rdp_rail_clientstatus_flags, flags, ENC_LITTLE_ENDIAN);

    break;

  }

  case TS_RAIL_ORDER_SYSMENU:

  case TS_RAIL_ORDER_LANGBARINFO:

  case TS_RAIL_ORDER_EXEC_RESULT:

  case TS_RAIL_ORDER_GET_APPID_REQ:

  case TS_RAIL_ORDER_GET_APPID_RESP:

  case TS_RAIL_ORDER_TASKBARINFO:

  case TS_RAIL_ORDER_LANGUAGEIMEINFO:

  case TS_RAIL_ORDER_COMPARTMENTINFO:

    break;

  case TS_RAIL_ORDER_HANDSHAKE_EX: {

    int *flags[] = {

      &hf_rail_handshake_flags_hidef,

      &hf_rail_handshake_flags_ex_spi,

      &hf_rail_handshake_flags_snap,

      &hf_rail_handshake_flags_textscale,

      &hf_rail_handshake_flags_caretblink,

      &hf_rail_handshake_flags_ex_spi2,

      NULL,

    };

    proto_tree_add_item(tree, hf_rail_caps_handshake_buildNumber, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_bitmask(tree, tvb, offset, hf_rail_handshake_flags, ett_rdp_rail_handshake_flags, flags, ENC_LITTLE_ENDIAN);

    break;

  }

  case TS_RAIL_ORDER_ZORDER_SYNC:

    break;

  case TS_RAIL_ORDER_CLOAK:

    proto_tree_add_item(tree, hf_rail_cloak_cloaked, tvb, offset, 1, ENC_LITTLE_ENDIAN);

    break;

  case TS_RAIL_ORDER_POWER_DISPLAY_REQUEST:

  case TS_RAIL_ORDER_SNAP_ARRANGE:

  case TS_RAIL_ORDER_GET_APPID_RESP_EX:

  case TS_RAIL_ORDER_TEXTSCALEINFO:

  case TS_RAIL_ORDER_CARETBLINKINFO:

      break;

  default:

    break;

  }

  offset = nextOffset;

  return offset;

}

void proto_register_rdp_rail(void) {

  static hf_register_info hf[] = {

    { &hf_rail_orderType,

      { "OrderType", "rdp_rail.ordertype",

        FT_UINT16, BASE_HEX, VALS(rdp_rail_order_vals), 0x0,

      NULL, HFILL }

    },

    { &hf_rail_pduLength,

      { "OrderLength", "rdp_rail.orderlength",

      FT_UINT32, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_caps_handshake_buildNumber,

      { "Build number", "rdp_rail.handshake.buildNumber",

      FT_UINT32, BASE_HEX, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_windowId,

      { "WindowId", "rdp_rail.windowid",

      FT_UINT32, BASE_HEX, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_windowmove_left,

      { "Left", "rdp_rail.windowmove.left",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_windowmove_top,

      { "Top", "rdp_rail.windowmove.top",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_windowmove_right,

      { "Right", "rdp_rail.windowmove.right",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_windowmove_bottom,

      { "Bottom", "rdp_rail.windowmove.bottom",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_localmovesize_isMoveSizeStart,

      { "IsMoveSizeStart", "rdp_rail.localmovesize.ismovesizestart",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_localmovesize_moveSizeType,

      { "Move size type", "rdp_rail.localmovesize.movesizetype",

      FT_UINT16, BASE_DEC, VALS(moveSizeStart_vals), 0x0,

      NULL, HFILL }

    },

    { &hf_rail_localmovesize_posX,

      { "PosX", "rdp_rail.localmovesize.posx",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_localmovesize_posY,

      { "PosY", "rdp_rail.localmovesize.posy",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_maxwidth,

      { "Max width", "rdp_rail.minmaxinfo.maxwidth",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_maxheight,

      { "Max height", "rdp_rail.minmaxinfo.maxheight",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_maxPosX,

      { "Max posX", "rdp_rail.minmaxinfo.maxposx",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_maxPosY,

      { "Max posY", "rdp_rail.minmaxinfo.maxposy",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_minTrackWidth,

      { "Min track width", "rdp_rail.minmaxinfo.mintrackwidth",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_minTrackHeight,

      { "Min track height", "rdp_rail.minmaxinfo.mintrackheight",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_maxTrackWidth,

      { "Max track width", "rdp_rail.minmaxinfo.maxtrackwidth",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_minmaxinfo_maxTrackHeight,

      { "Max track height", "rdp_rail.minmaxinfo.maxtrackheight",

      FT_UINT16, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_cloak_cloaked,

      { "Cloaked", "rdp_rail.cloak.cloaked",

      FT_UINT8, BASE_DEC, NULL, 0x0,

      NULL, HFILL }

    },

    { &hf_rail_handshake_flags,

      { "Flags", "rdp_rail.handshakeflags",

      FT_UINT32, BASE_HEX, NULL, 0,

      NULL, HFILL }},

    { &hf_rail_handshake_flags_hidef,

      { "HIDEF", "rdp_rail.handshakeflags.hidef",

      FT_UINT32, BASE_HEX, NULL, 0x00000001,

      NULL, HFILL }},

    { &hf_rail_handshake_flags_ex_spi,

      { "EXTENDED_SPI_SUPPORTED", "rdp_rail.handshakeflags.exspi",

      FT_UINT32, BASE_HEX, NULL, 0x00000002,

      NULL, HFILL }},

    { &hf_rail_handshake_flags_snap,

      { "SNAP_ARRANGE_SUPPORTED", "rdp_rail.handshakeflags.snap",

      FT_UINT32, BASE_HEX, NULL, 0x00000004,

      NULL, HFILL }},

    { &hf_rail_handshake_flags_textscale,

      { "TEXT_SCALE_SUPPORTED", "rdp_rail.handshakeflags.textscale",

      FT_UINT32, BASE_HEX, NULL, 0x00000008,

      NULL, HFILL }},

    { &hf_rail_handshake_flags_caretblink,

      { "CARET_BLINK_SUPPORTED", "rdp_rail.handshakeflags.caretblink",

      FT_UINT32, BASE_HEX, NULL, 0x00000010,

      NULL, HFILL }},

    { &hf_rail_handshake_flags_ex_spi2,

      { "EXTENDED_SPI_2_SUPPORTED", "rdp_rail.handshakeflags.exspi2",

      FT_UINT32, BASE_HEX, NULL, 0x00000020,

      NULL, HFILL }},

    { &hf_rail_cstatus_flags,

      { "Flags", "rdp_rail.clientstatus.flags",

      FT_UINT32, BASE_HEX, NULL, 0x0,

      NULL, HFILL }},

    { &hf_rail_cstatus_flags_allowlocalmove,

      { "ALLOWLOCALMOVESIZE", "rdp_rail.clientstatus.allowlocalmove",

      FT_UINT32, BASE_HEX, NULL, 0x00000001,

      NULL, HFILL }},

    { &hf_rail_cstatus_autoreconnect,

      { "AUTORECONNECT", "rdp_rail.clientstatus.autoreconnect",

      FT_UINT32, BASE_HEX, NULL, 0x00000002,

      NULL, HFILL }},

    { &hf_rail_cstatus_zorder_sync,

      { "ZORDER_SYNC", "rdp_rail.clientstatus.zordersync",

      FT_UINT32, BASE_HEX, NULL, 0x00000004,

      NULL, HFILL }},

    { &hf_rail_cstatus_resize_margin,

      { "WINDOW_RESIZE_MARGIN_SUPPORTED", "rdp_rail.clientstatus.resizemargin",

      FT_UINT32, BASE_HEX, NULL, 0x00000010,

      NULL, HFILL }},

    { &hf_rail_cstatus_hidpi_icons,

      { "HIGH_DPI_ICONS_SUPPORTED", "rdp_rail.clientstatus.highdpiicons",

      FT_UINT32, BASE_HEX, NULL, 0x00000020,

      NULL, HFILL }},

    { &hf_rail_cstatus_appbar_remoting,

      { "APPBAR_REMOTING_SUPPORTED", "rdp_rail.clientstatus.appbarremoting",

      FT_UINT32, BASE_HEX, NULL, 0x00000040,

      NULL, HFILL }},

    { &hf_rail_cstatus_powerdisplay,

      { "POWER_DISPLAY_REQUEST_SUPPORTED", "rdp_rail.clientstatus.powerdisplay",

      FT_UINT32, BASE_HEX, NULL, 0x00000080,

      NULL, HFILL }},

    { &hf_rail_cstatus_bidir_cloak,

      { "BIDIRECTIONAL_CLOAK_SUPPORTED", "rdp_rail.clientstatus.bidircloak",

      FT_UINT32, BASE_HEX, NULL, 0x00000200,

      NULL, HFILL }},

    { &hf_rail_cstatus_suppress_icon_border,

      { "SUPPRESS_ICON_ORDERS", "rdp_rail.clientstatus.suppressiconborder",

      FT_UINT32, BASE_HEX, NULL, 0x00000400,

      NULL, HFILL }},

    { &hf_rail_activate_enabled,

      { "Enabled", "rdp_rail.activate.enabled",

      FT_UINT8, BASE_DEC, NULL, 0x0,

      NULL, HFILL }},

    { &hf_rail_notify_iconId,

      { "IconId", "rdp_rail.notify.iconid",

      FT_UINT32, BASE_HEX, NULL, 0x0,

      NULL, HFILL }},

    { &hf_rail_notify_message,

      { "Message", "rdp_rail.notify.message",

      FT_UINT32, BASE_HEX, VALS(rdp_rail_notify_vals), 0x0,

      NULL, HFILL }},

    { &hf_rail_sysparam_server_params,

      { "SystemParameter", "rdp_rail.sysparam.serverparameter",

      FT_UINT32, BASE_HEX, VALS(rdp_rail_server_system_params_vals), 0x0,

      NULL, HFILL }},

    { &hf_rail_sysparam_client_params,

      { "SystemParameter", "rdp_rail.sysparam.clientparameter",

      FT_UINT32, BASE_HEX, VALS(rdp_rail_client_system_params_vals), 0x0,

      NULL, HFILL }},

  };

  static int *ett[] = {

    &ett_rdp_rail,

    &ett_rdp_rail_handshake_flags,

    &ett_rdp_rail_clientstatus_flags,

  };

  proto_rdp_rail = proto_register_protocol(PNAME, PSNAME, PFNAME);

  /* Register fields and subtrees */

  proto_register_field_array(proto_rdp_rail, hf, array_length(hf));

  proto_register_subtree_array(ett, array_length(ett));

  register_dissector("rdp_rail", dissect_rdp_rail, proto_rdp_rail);

}

void proto_reg_handoff_rdp_rail(void) {

}