Files
ShotRDP/grdp/protocol/pdu/caps.go
2025-02-20 12:31:02 +08:00

761 lines
22 KiB
Go

package pdu
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"ShotRDP/grdp/glog"
"ShotRDP/grdp/core"
"ShotRDP/grdp/protocol/t125/gcc"
"github.com/lunixbochs/struc"
)
type CapsType uint16
const (
CAPSTYPE_GENERAL CapsType = 0x0001
CAPSTYPE_BITMAP = 0x0002
CAPSTYPE_ORDER = 0x0003
CAPSTYPE_BITMAPCACHE = 0x0004
CAPSTYPE_CONTROL = 0x0005
CAPSTYPE_ACTIVATION = 0x0007
CAPSTYPE_POINTER = 0x0008
CAPSTYPE_SHARE = 0x0009
CAPSTYPE_COLORCACHE = 0x000A
CAPSTYPE_SOUND = 0x000C
CAPSTYPE_INPUT = 0x000D
CAPSTYPE_FONT = 0x000E
CAPSTYPE_BRUSH = 0x000F
CAPSTYPE_GLYPHCACHE = 0x0010
CAPSTYPE_OFFSCREENCACHE = 0x0011
CAPSTYPE_BITMAPCACHE_HOSTSUPPORT = 0x0012
CAPSTYPE_BITMAPCACHE_REV2 = 0x0013
CAPSTYPE_VIRTUALCHANNEL = 0x0014
CAPSTYPE_DRAWNINEGRIDCACHE = 0x0015
CAPSTYPE_DRAWGDIPLUS = 0x0016
CAPSTYPE_RAIL = 0x0017
CAPSTYPE_WINDOW = 0x0018
CAPSETTYPE_COMPDESK = 0x0019
CAPSETTYPE_MULTIFRAGMENTUPDATE = 0x001A
CAPSETTYPE_LARGE_POINTER = 0x001B
CAPSETTYPE_SURFACE_COMMANDS = 0x001C
CAPSETTYPE_BITMAP_CODECS = 0x001D
CAPSSETTYPE_FRAME_ACKNOWLEDGE = 0x001E
)
func (c CapsType) String() string {
switch c {
case CAPSTYPE_GENERAL:
return "CAPSTYPE_GENERAL"
case CAPSTYPE_BITMAP:
return "CAPSTYPE_BITMAP"
case CAPSTYPE_ORDER:
return "CAPSTYPE_ORDER"
case CAPSTYPE_BITMAPCACHE:
return "CAPSTYPE_BITMAPCACHE"
case CAPSTYPE_CONTROL:
return "CAPSTYPE_CONTROL"
case CAPSTYPE_ACTIVATION:
return "CAPSTYPE_ACTIVATION"
case CAPSTYPE_POINTER:
return "CAPSTYPE_POINTER"
case CAPSTYPE_SHARE:
return "CAPSTYPE_SHARE"
case CAPSTYPE_COLORCACHE:
return "CAPSTYPE_COLORCACHE"
case CAPSTYPE_SOUND:
return "CAPSTYPE_SOUND"
case CAPSTYPE_INPUT:
return "CAPSTYPE_INPUT"
case CAPSTYPE_FONT:
return "CAPSTYPE_FONT"
case CAPSTYPE_BRUSH:
return "CAPSTYPE_BRUSH"
case CAPSTYPE_GLYPHCACHE:
return "CAPSTYPE_GLYPHCACHE"
case CAPSTYPE_OFFSCREENCACHE:
return "CAPSTYPE_OFFSCREENCACHE"
case CAPSTYPE_BITMAPCACHE_HOSTSUPPORT:
return "CAPSTYPE_BITMAPCACHE_HOSTSUPPORT"
case CAPSTYPE_BITMAPCACHE_REV2:
return "CAPSTYPE_BITMAPCACHE_REV2"
case CAPSTYPE_VIRTUALCHANNEL:
return "CAPSTYPE_VIRTUALCHANNEL"
case CAPSTYPE_DRAWNINEGRIDCACHE:
return "CAPSTYPE_DRAWNINEGRIDCACHE"
case CAPSTYPE_DRAWGDIPLUS:
return "CAPSTYPE_DRAWGDIPLUS"
case CAPSTYPE_RAIL:
return "CAPSTYPE_RAIL"
case CAPSTYPE_WINDOW:
return "CAPSTYPE_WINDOW"
case CAPSETTYPE_COMPDESK:
return "CAPSETTYPE_COMPDESK"
case CAPSETTYPE_MULTIFRAGMENTUPDATE:
return "CAPSETTYPE_MULTIFRAGMENTUPDATE"
case CAPSETTYPE_LARGE_POINTER:
return "CAPSETTYPE_LARGE_POINTER"
case CAPSETTYPE_SURFACE_COMMANDS:
return "CAPSETTYPE_SURFACE_COMMANDS"
case CAPSETTYPE_BITMAP_CODECS:
return "CAPSETTYPE_BITMAP_CODECS"
case CAPSSETTYPE_FRAME_ACKNOWLEDGE:
return "CAPSSETTYPE_FRAME_ACKNOWLEDGE"
}
return "Unknown"
}
type MajorType uint16
const (
OSMAJORTYPE_UNSPECIFIED MajorType = 0x0000
OSMAJORTYPE_WINDOWS = 0x0001
OSMAJORTYPE_OS2 = 0x0002
OSMAJORTYPE_MACINTOSH = 0x0003
OSMAJORTYPE_UNIX = 0x0004
OSMAJORTYPE_IOS = 0x0005
OSMAJORTYPE_OSX = 0x0006
OSMAJORTYPE_ANDROID = 0x0007
)
type MinorType uint16
const (
OSMINORTYPE_UNSPECIFIED MinorType = 0x0000
OSMINORTYPE_WINDOWS_31X = 0x0001
OSMINORTYPE_WINDOWS_95 = 0x0002
OSMINORTYPE_WINDOWS_NT = 0x0003
OSMINORTYPE_OS2_V21 = 0x0004
OSMINORTYPE_POWER_PC = 0x0005
OSMINORTYPE_MACINTOSH = 0x0006
OSMINORTYPE_NATIVE_XSERVER = 0x0007
OSMINORTYPE_PSEUDO_XSERVER = 0x0008
OSMINORTYPE_WINDOWS_RT = 0x0009
)
const (
FASTPATH_OUTPUT_SUPPORTED uint16 = 0x0001
NO_BITMAP_COMPRESSION_HDR = 0x0400
LONG_CREDENTIALS_SUPPORTED = 0x0004
AUTORECONNECT_SUPPORTED = 0x0008
ENC_SALTED_CHECKSUM = 0x0010
)
type OrderFlag uint16
const (
NEGOTIATEORDERSUPPORT OrderFlag = 0x0002
ZEROBOUNDSDELTASSUPPORT = 0x0008
COLORINDEXSUPPORT = 0x0020
SOLIDPATTERNBRUSHONLY = 0x0040
ORDERFLAGS_EXTRA_FLAGS = 0x0080
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240556.aspx
*/
type Order uint8
const (
TS_NEG_DSTBLT_INDEX Order = 0x00
TS_NEG_PATBLT_INDEX = 0x01
TS_NEG_SCRBLT_INDEX = 0x02
TS_NEG_MEMBLT_INDEX = 0x03
TS_NEG_MEM3BLT_INDEX = 0x04
TS_NEG_DRAWNINEGRID_INDEX = 0x07
TS_NEG_LINETO_INDEX = 0x08
TS_NEG_MULTI_DRAWNINEGRID_INDEX = 0x09
TS_NEG_SAVEBITMAP_INDEX = 0x0B
TS_NEG_MULTIDSTBLT_INDEX = 0x0F
TS_NEG_MULTIPATBLT_INDEX = 0x10
TS_NEG_MULTISCRBLT_INDEX = 0x11
TS_NEG_MULTIOPAQUERECT_INDEX = 0x12
TS_NEG_FAST_INDEX_INDEX = 0x13
TS_NEG_POLYGON_SC_INDEX = 0x14
TS_NEG_POLYGON_CB_INDEX = 0x15
TS_NEG_POLYLINE_INDEX = 0x16
TS_NEG_FAST_GLYPH_INDEX = 0x18
TS_NEG_ELLIPSE_SC_INDEX = 0x19
TS_NEG_ELLIPSE_CB_INDEX = 0x1A
TS_NEG_GLYPH_INDEX_INDEX = 0x1B
)
type OrderEx uint16
const (
ORDERFLAGS_EX_CACHE_BITMAP_REV3_SUPPORT OrderEx = 0x0002
ORDERFLAGS_EX_ALTSEC_FRAME_MARKER_SUPPORT = 0x0004
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240563.aspx
*/
const (
INPUT_FLAG_SCANCODES uint16 = 0x0001
INPUT_FLAG_MOUSEX = 0x0004
INPUT_FLAG_FASTPATH_INPUT = 0x0008
INPUT_FLAG_UNICODE = 0x0010
INPUT_FLAG_FASTPATH_INPUT2 = 0x0020
INPUT_FLAG_UNUSED1 = 0x0040
INPUT_FLAG_UNUSED2 = 0x0080
INPUT_FLAG_MOUSE_HWHEEL = 0x0100
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240564.aspx
*/
type BrushSupport uint32
const (
BRUSH_DEFAULT BrushSupport = 0x00000000
BRUSH_COLOR_8x8 = 0x00000001
BRUSH_COLOR_FULL = 0x00000002
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240565.aspx
*/
type GlyphSupport uint16
const (
GLYPH_SUPPORT_NONE GlyphSupport = 0x0000
GLYPH_SUPPORT_PARTIAL = 0x0001
GLYPH_SUPPORT_FULL = 0x0002
GLYPH_SUPPORT_ENCODE = 0x0003
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240550.aspx
*/
type OffscreenSupportLevel uint32
const (
OSL_FALSE OffscreenSupportLevel = 0x00000000
OSL_TRUE = 0x00000001
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240551.aspx
*/
type VirtualChannelCompressionFlag uint32
const (
VCCAPS_NO_COMPR VirtualChannelCompressionFlag = 0x00000000
VCCAPS_COMPR_SC = 0x00000001
VCCAPS_COMPR_CS_8K = 0x00000002
)
type SoundFlag uint16
const (
SOUND_NONE SoundFlag = 0x0000
SOUND_BEEPS_FLAG = 0x0001
)
type RailsupportLevel uint32
const (
RAIL_LEVEL_SUPPORTED = 0x00000001
RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED = 0x00000002
RAIL_LEVEL_SHELL_INTEGRATION_SUPPORTED = 0x00000004
RAIL_LEVEL_LANGUAGE_IME_SYNC_SUPPORTED = 0x00000008
RAIL_LEVEL_SERVER_TO_CLIENT_IME_SYNC_SUPPORTED = 0x00000010
RAIL_LEVEL_HIDE_MINIMIZED_APPS_SUPPORTED = 0x00000020
RAIL_LEVEL_WINDOW_CLOAKING_SUPPORTED = 0x00000040
RAIL_LEVEL_HANDSHAKE_EX_SUPPORTED = 0x00000080
)
const (
INPUT_EVENT_SYNC = 0x0000
INPUT_EVENT_UNUSED = 0x0002
INPUT_EVENT_SCANCODE = 0x0004
INPUT_EVENT_UNICODE = 0x0005
INPUT_EVENT_MOUSE = 0x8001
INPUT_EVENT_MOUSEX = 0x8002
)
const (
PTRFLAGS_HWHEEL = 0x0400
PTRFLAGS_WHEEL = 0x0200
PTRFLAGS_WHEEL_NEGATIVE = 0x0100
WheelRotationMask = 0x01FF
PTRFLAGS_MOVE = 0x0800
PTRFLAGS_DOWN = 0x8000
PTRFLAGS_BUTTON1 = 0x1000
PTRFLAGS_BUTTON2 = 0x2000
PTRFLAGS_BUTTON3 = 0x4000
)
const (
KBDFLAGS_EXTENDED = 0x0100
KBDFLAGS_DOWN = 0x4000
KBDFLAGS_RELEASE = 0x8000
)
type SurfaceCmdFlags uint32
const (
SURFCMDS_SET_SURFACE_BITS = 0x00000002
SURFCMDS_FRAME_MARKER = 0x00000010
SURFCMDS_STREAM_SURFACE_BITS = 0x00000040
)
type Capability interface {
Type() CapsType
}
type GeneralCapability struct {
// 010018000100030000020000000015040000000000000000
OSMajorType MajorType `struc:"little"`
OSMinorType MinorType `struc:"little"`
ProtocolVersion uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
GeneralCompressionTypes uint16 `struc:"little"`
ExtraFlags uint16 `struc:"little"`
UpdateCapabilityFlag uint16 `struc:"little"`
RemoteUnshareFlag uint16 `struc:"little"`
GeneralCompressionLevel uint16 `struc:"little"`
RefreshRectSupport uint8 `struc:"little"`
SuppressOutputSupport uint8 `struc:"little"`
}
func (*GeneralCapability) Type() CapsType {
return CAPSTYPE_GENERAL
}
type BitmapCapability struct {
// 02001c00180001000100010000052003000000000100000001000000
PreferredBitsPerPixel gcc.HighColor `struc:"little"`
Receive1BitPerPixel uint16 `struc:"little"`
Receive4BitsPerPixel uint16 `struc:"little"`
Receive8BitsPerPixel uint16 `struc:"little"`
DesktopWidth uint16 `struc:"little"`
DesktopHeight uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
DesktopResizeFlag uint16 `struc:"little"`
BitmapCompressionFlag uint16 `struc:"little"`
HighColorFlags uint8 `struc:"little"`
DrawingFlags uint8 `struc:"little"`
MultipleRectangleSupport uint16 `struc:"little"`
Pad2octetsB uint16 `struc:"little"`
}
func (*BitmapCapability) Type() CapsType {
return CAPSTYPE_BITMAP
}
type BitmapCacheCapability struct {
// 04002800000000000000000000000000000000000000000000000000000000000000000000000000
Pad1 uint32 `struc:"little"`
Pad2 uint32 `struc:"little"`
Pad3 uint32 `struc:"little"`
Pad4 uint32 `struc:"little"`
Pad5 uint32 `struc:"little"`
Pad6 uint32 `struc:"little"`
Cache0Entries uint16 `struc:"little"`
Cache0MaximumCellSize uint16 `struc:"little"`
Cache1Entries uint16 `struc:"little"`
Cache1MaximumCellSize uint16 `struc:"little"`
Cache2Entries uint16 `struc:"little"`
Cache2MaximumCellSize uint16 `struc:"little"`
}
func (*BitmapCacheCapability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE
}
type OrderCapability struct {
// 030058000000000000000000000000000000000000000000010014000000010000000a0000000000000000000000000000000000000000000000000000000000000000000000000000000000008403000000000000000000
TerminalDescriptor [16]byte
Pad4octetsA uint32 `struc:"little"`
DesktopSaveXGranularity uint16 `struc:"little"`
DesktopSaveYGranularity uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
MaximumOrderLevel uint16 `struc:"little"`
NumberFonts uint16 `struc:"little"`
OrderFlags OrderFlag `struc:"little"`
OrderSupport [32]byte
TextFlags uint16 `struc:"little"`
OrderSupportExFlags uint16 `struc:"little"`
Pad4octetsB uint32 `struc:"little"`
DesktopSaveSize uint32 `struc:"little"`
Pad2octetsC uint16 `struc:"little"`
Pad2octetsD uint16 `struc:"little"`
TextANSICodePage uint16 `struc:"little"`
Pad2octetsE uint16 `struc:"little"`
}
func (*OrderCapability) Type() CapsType {
return CAPSTYPE_ORDER
}
type PointerCapability struct {
ColorPointerFlag uint16 `struc:"little"`
ColorPointerCacheSize uint16 `struc:"little"`
// old version of rdp doesn't support ...
PointerCacheSize uint16 `struc:"little"` // only server need
}
func (*PointerCapability) Type() CapsType {
return CAPSTYPE_POINTER
}
type InputCapability struct {
// 0d005c001500000009040000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000
Flags uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
// same value as gcc.ClientCoreSettings.kbdLayout
KeyboardLayout gcc.KeyboardLayout `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardType
KeyboardType uint32 `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardSubType
KeyboardSubType uint32 `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardFnKeys
KeyboardFunctionKey uint32 `struc:"little"`
// same value as gcc.ClientCoreSettingrrs.imeFileName
ImeFileName [64]byte
//need add 0c000000 in the end
}
func (*InputCapability) Type() CapsType {
return CAPSTYPE_INPUT
}
type BrushCapability struct {
// 0f00080000000000
SupportLevel BrushSupport `struc:"little"`
}
func (*BrushCapability) Type() CapsType {
return CAPSTYPE_BRUSH
}
type cacheEntry struct {
Entries uint16 `struc:"little"`
MaximumCellSize uint16 `struc:"little"`
}
type GlyphCapability struct {
// 10003400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
GlyphCache [10]cacheEntry `struc:"little"`
FragCache uint32 `struc:"little"`
SupportLevel GlyphSupport `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*GlyphCapability) Type() CapsType {
return CAPSTYPE_GLYPHCACHE
}
type OffscreenBitmapCacheCapability struct {
// 11000c000000000000000000
SupportLevel OffscreenSupportLevel `struc:"little"`
CacheSize uint16 `struc:"little"`
CacheEntries uint16 `struc:"little"`
}
func (*OffscreenBitmapCacheCapability) Type() CapsType {
return CAPSTYPE_OFFSCREENCACHE
}
type BitmapCache2Capability struct {
BitmapCachePersist uint16 `struc:"little"`
Pad2octets uint8 `struc:"little"`
CachesNum uint8 `struc:"little"`
BmpC0Cells uint32 `struc:"little"`
BmpC1Cells uint32 `struc:"little"`
BmpC2Cells uint32 `struc:"little"`
BmpC3Cells uint32 `struc:"little"`
BmpC4Cells uint32 `struc:"little"`
Pad2octets1 [12]byte `struc:"little"`
}
func (*BitmapCache2Capability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE_REV2
}
type VirtualChannelCapability struct {
// 14000c000000000000000000
Flags VirtualChannelCompressionFlag `struc:"little"`
VCChunkSize uint32 `struc:"little"` // optional
}
func (*VirtualChannelCapability) Type() CapsType {
return CAPSTYPE_VIRTUALCHANNEL
}
type SoundCapability struct {
// 0c00080000000000
Flags SoundFlag `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*SoundCapability) Type() CapsType {
return CAPSTYPE_SOUND
}
type ControlCapability struct {
ControlFlags uint16 `struc:"little"`
RemoteDetachFlag uint16 `struc:"little"`
ControlInterest uint16 `struc:"little"`
DetachInterest uint16 `struc:"little"`
}
func (*ControlCapability) Type() CapsType {
return CAPSTYPE_CONTROL
}
type WindowActivationCapability struct {
HelpKeyFlag uint16 `struc:"little"`
HelpKeyIndexFlag uint16 `struc:"little"`
HelpExtendedKeyFlag uint16 `struc:"little"`
WindowManagerKeyFlag uint16 `struc:"little"`
}
func (*WindowActivationCapability) Type() CapsType {
return CAPSTYPE_ACTIVATION
}
type FontCapability struct {
SupportFlags uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*FontCapability) Type() CapsType {
return CAPSTYPE_FONT
}
type ColorCacheCapability struct {
CacheSize uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*ColorCacheCapability) Type() CapsType {
return CAPSTYPE_COLORCACHE
}
type ShareCapability struct {
NodeId uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*ShareCapability) Type() CapsType {
return CAPSTYPE_SHARE
}
type MultiFragmentUpdate struct {
// 1a00080000000000
MaxRequestSize uint32 `struc:"little"`
}
func (*MultiFragmentUpdate) Type() CapsType {
return CAPSETTYPE_MULTIFRAGMENTUPDATE
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpegdi/52635737-d144-4f47-9c88-b48ceaf3efb4
type DrawGDIPlusCapability struct {
SupportLevel uint32
GdipVersion uint32
CacheLevel uint32
GdipCacheEntries [10]byte
GdipCacheChunkSize [8]byte
GdipImageCacheProperties [6]byte
}
func (*DrawGDIPlusCapability) Type() CapsType {
return CAPSTYPE_DRAWGDIPLUS
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/86507fed-a0ee-4242-b802-237534a8f65e
type BitmapCodec struct {
GUID [16]byte
ID uint8
PropertiesLength uint16 `struc:"little,sizeof=Properties"`
Properties []byte
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/408b1878-9f6e-4106-8329-1af42219ba6a
type BitmapCodecS struct {
Count uint8 `struc:"sizeof=Array"`
Array []BitmapCodec
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/17e80f50-d163-49de-a23b-fd6456aa472f
type BitmapCodecsCapability struct {
SupportedBitmapCodecs BitmapCodecS // A variable-length field containing a TS_BITMAPCODECS structure (section 2.2.7.2.10.1).
}
func (*BitmapCodecsCapability) Type() CapsType {
return CAPSETTYPE_BITMAP_CODECS
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/fc05c385-46c3-42cb-9ed2-c475a3990e0b
type BitmapCacheHostSupportCapability struct {
CacheVersion uint8
Pad1 uint8
Pad2 uint16
}
func (*BitmapCacheHostSupportCapability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE_HOSTSUPPORT
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/41323437-c753-460e-8108-495a6fdd68a8
type LargePointerCapability struct {
SupportFlags uint16 `struc:"little"`
}
func (*LargePointerCapability) Type() CapsType {
return CAPSETTYPE_LARGE_POINTER
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdperp/36a25e21-25e1-4954-aae8-09aaf6715c79
type RemoteProgramsCapability struct {
RailSupportLevel uint32 `struc:"little"`
}
func (*RemoteProgramsCapability) Type() CapsType {
return CAPSTYPE_RAIL
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdperp/82ec7a69-f7e3-4294-830d-666178b35d15
type WindowListCapability struct {
WndSupportLevel uint32 `struc:"little"`
NumIconCaches uint8
NumIconCacheEntries uint16 `struc:"little"`
}
func (*WindowListCapability) Type() CapsType {
return CAPSTYPE_WINDOW
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/9132002f-f133-4a0f-ba2f-2dc48f1e7f93
type DesktopCompositionCapability struct {
CompDeskSupportLevel uint16 `struc:"little"`
}
func (*DesktopCompositionCapability) Type() CapsType {
return CAPSETTYPE_COMPDESK
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/aa953018-c0a8-4761-bb12-86586c2cd56a
type SurfaceCommandsCapability struct {
CmdFlags uint32 `struc:"little"`
Reserved uint32 `struc:"little"`
}
func (*SurfaceCommandsCapability) Type() CapsType {
return CAPSETTYPE_SURFACE_COMMANDS
}
type FrameAcknowledgeCapability struct {
FrameCount uint32 `struc:"little"`
}
func (*FrameAcknowledgeCapability) Type() CapsType {
return CAPSSETTYPE_FRAME_ACKNOWLEDGE
}
type DrawNineGridCapability struct {
SupportLevel uint32 `struc:"little"`
CacheSize uint16 `struc:"little"`
CacheEntries uint16 `struc:"little"`
}
func (*DrawNineGridCapability) Type() CapsType {
return CAPSTYPE_DRAWNINEGRIDCACHE
}
func readCapability(r io.Reader) (Capability, error) {
capType, err := core.ReadUint16LE(r)
if err != nil {
return nil, err
}
capLen, err := core.ReadUint16LE(r)
if err != nil {
return nil, err
}
if int(capLen)-4 <= 0 {
return nil, errors.New(fmt.Sprintf("Capability length expected %d", capLen))
}
capBytes, err := core.ReadBytes(int(capLen)-4, r)
if err != nil {
return nil, err
}
capReader := bytes.NewReader(capBytes)
var c Capability
glog.Debugf("Capability type 0x%04x", capType)
switch CapsType(capType) {
case CAPSTYPE_GENERAL:
c = &GeneralCapability{}
case CAPSTYPE_BITMAP:
c = &BitmapCapability{}
case CAPSTYPE_ORDER:
c = &OrderCapability{}
case CAPSTYPE_BITMAPCACHE:
c = &BitmapCacheCapability{}
case CAPSTYPE_POINTER:
c = &PointerCapability{}
case CAPSTYPE_INPUT:
c = &InputCapability{}
case CAPSTYPE_BRUSH:
c = &BrushCapability{}
case CAPSTYPE_GLYPHCACHE:
c = &GlyphCapability{}
case CAPSTYPE_OFFSCREENCACHE:
c = &OffscreenBitmapCacheCapability{}
case CAPSTYPE_VIRTUALCHANNEL:
c = &VirtualChannelCapability{}
case CAPSTYPE_SOUND:
c = &SoundCapability{}
case CAPSTYPE_CONTROL:
c = &ControlCapability{}
case CAPSTYPE_ACTIVATION:
c = &WindowActivationCapability{}
case CAPSTYPE_FONT:
c = &FontCapability{}
case CAPSTYPE_COLORCACHE:
c = &ColorCacheCapability{}
case CAPSTYPE_SHARE:
c = &ShareCapability{}
case CAPSETTYPE_MULTIFRAGMENTUPDATE:
c = &MultiFragmentUpdate{}
case CAPSTYPE_DRAWGDIPLUS:
c = &DrawGDIPlusCapability{}
case CAPSETTYPE_BITMAP_CODECS:
c = &BitmapCodecsCapability{}
case CAPSTYPE_BITMAPCACHE_HOSTSUPPORT:
c = &BitmapCacheHostSupportCapability{}
case CAPSETTYPE_LARGE_POINTER:
c = &LargePointerCapability{}
case CAPSTYPE_RAIL:
c = &RemoteProgramsCapability{}
case CAPSTYPE_WINDOW:
c = &WindowListCapability{}
case CAPSETTYPE_COMPDESK:
c = &DesktopCompositionCapability{}
case CAPSETTYPE_SURFACE_COMMANDS:
c = &SurfaceCommandsCapability{}
case CAPSSETTYPE_FRAME_ACKNOWLEDGE:
c = &FrameAcknowledgeCapability{}
default:
err := errors.New(fmt.Sprintf("unsupported Capability type 0x%04x", capType))
glog.Error(err)
return nil, err
}
if err := struc.Unpack(capReader, c); err != nil {
glog.Error("Capability unpack error", err, fmt.Sprintf("0x%04x", capType), hex.EncodeToString(capBytes))
return nil, err
}
glog.Debugf("Capability<%s>: %+v", c.Type(), c)
return c, nil
}