static UINT32 drdynvc_read_variable_uint(STREAM* stream, int cbLen)
{
UINT32 val;
switch (cbLen)
{
case 0:
stream_read_BYTE(stream, val);
break;
case 1:
stream_read_UINT16(stream, val);
break;
default:
stream_read_UINT32(stream, val);
break;
}
return val;
}
BOOL rail_read_unicode_string(wStream* s, RAIL_UNICODE_STRING* unicode_string)
{
if (stream_get_left(s) < 2)
return FALSE;
stream_read_UINT16(s, unicode_string->length); /* cbString (2 bytes) */
if (stream_get_left(s) < unicode_string->length)
return FALSE;
if (unicode_string->string == NULL)
unicode_string->string = (BYTE*) malloc(unicode_string->length);
else
unicode_string->string = (BYTE*) realloc(unicode_string->string, unicode_string->length);
stream_read(s, unicode_string->string, unicode_string->length);
return TRUE;
}
BOOL rdp_recv_client_synchronize_pdu(rdpRdp* rdp, STREAM* s)
{
UINT16 messageType;
rdp->finalize_sc_pdus |= FINALIZE_SC_SYNCHRONIZE_PDU;
if (stream_get_left(s) < 4)
return FALSE;
stream_read_UINT16(s, messageType); /* messageType (2 bytes) */
if (messageType != SYNCMSGTYPE_SYNC)
return FALSE;
/* targetUser (2 bytes) */
stream_seek_UINT16(s);
return TRUE;
}
int update_recv_surfcmds(rdpUpdate* update, UINT32 size, STREAM* s)
{
BYTE* mark;
UINT16 cmdType;
UINT32 cmdLength;
while (size > 2)
{
stream_get_mark(s, mark);
stream_read_UINT16(s, cmdType);
size -= 2;
switch (cmdType)
{
case CMDTYPE_SET_SURFACE_BITS:
case CMDTYPE_STREAM_SURFACE_BITS:
if (!update_recv_surfcmd_surface_bits(update, s, &cmdLength))
return -1;
break;
case CMDTYPE_FRAME_MARKER:
if (!update_recv_surfcmd_frame_marker(update, s, &cmdLength))
return -1;
break;
default:
DEBUG_WARN("unknown cmdType 0x%X", cmdType);
return -1;
}
size -= cmdLength;
if (update->dump_rfx)
{
pcap_add_record(update->pcap_rfx, mark, cmdLength + 2);
pcap_flush(update->pcap_rfx);
}
}
return 0;
}
BOOL update_read_icon_info(wStream* s, ICON_INFO* icon_info)
{
if(stream_get_left(s) < 8)
return FALSE;
stream_read_UINT16(s, icon_info->cacheEntry); /* cacheEntry (2 bytes) */
stream_read_BYTE(s, icon_info->cacheId); /* cacheId (1 byte) */
stream_read_BYTE(s, icon_info->bpp); /* bpp (1 byte) */
stream_read_UINT16(s, icon_info->width); /* width (2 bytes) */
stream_read_UINT16(s, icon_info->height); /* height (2 bytes) */
/* cbColorTable is only present when bpp is 1, 2 or 4 */
if (icon_info->bpp == 1 || icon_info->bpp == 2 || icon_info->bpp == 4) {
if(stream_get_left(s) < 2)
return FALSE;
stream_read_UINT16(s, icon_info->cbColorTable); /* cbColorTable (2 bytes) */
} else {
icon_info->cbColorTable = 0;
}
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT16(s, icon_info->cbBitsMask); /* cbBitsMask (2 bytes) */
stream_read_UINT16(s, icon_info->cbBitsColor); /* cbBitsColor (2 bytes) */
if(stream_get_left(s) < icon_info->cbBitsMask + icon_info->cbBitsColor)
return FALSE;
/* bitsMask */
if (icon_info->bitsMask == NULL)
icon_info->bitsMask = (BYTE*) malloc(icon_info->cbBitsMask);
else
icon_info->bitsMask = (BYTE*) realloc(icon_info->bitsMask, icon_info->cbBitsMask);
stream_read(s, icon_info->bitsMask, icon_info->cbBitsMask);
/* colorTable */
if (icon_info->colorTable == NULL)
icon_info->colorTable = (BYTE*) malloc(icon_info->cbColorTable);
else
icon_info->colorTable = (BYTE*) realloc(icon_info->colorTable, icon_info->cbColorTable);
stream_read(s, icon_info->colorTable, icon_info->cbColorTable);
/* bitsColor */
if (icon_info->bitsColor == NULL)
icon_info->bitsColor = (BYTE*) malloc(icon_info->cbBitsColor);
else
icon_info->bitsColor = (BYTE*) realloc(icon_info->bitsColor, icon_info->cbBitsColor);
stream_read(s, icon_info->bitsColor, icon_info->cbBitsColor);
return TRUE;
}
BOOL update_recv(rdpUpdate* update, STREAM* s)
{
UINT16 updateType;
rdpContext* context = update->context;
stream_read_UINT16(s, updateType); /* updateType (2 bytes) */
//printf("%s Update Data PDU\n", UPDATE_TYPE_STRINGS[updateType]);
IFCALL(update->BeginPaint, context);
switch (updateType)
{
case UPDATE_TYPE_ORDERS:
if (!update_recv_orders(update, s))
{
/* XXX: Do we have to call EndPaint? */
return FALSE;
}
break;
case UPDATE_TYPE_BITMAP:
update_read_bitmap(update, s, &update->bitmap_update);
IFCALL(update->BitmapUpdate, context, &update->bitmap_update);
break;
case UPDATE_TYPE_PALETTE:
update_read_palette(update, s, &update->palette_update);
IFCALL(update->Palette, context, &update->palette_update);
break;
case UPDATE_TYPE_SYNCHRONIZE:
update_read_synchronize(update, s);
IFCALL(update->Synchronize, context);
break;
}
IFCALL(update->EndPaint, context);
return TRUE;
}
void update_recv_pointer(rdpUpdate* update, STREAM* s)
{
UINT16 messageType;
rdpContext* context = update->context;
rdpPointerUpdate* pointer = update->pointer;
stream_read_UINT16(s, messageType); /* messageType (2 bytes) */
stream_seek_UINT16(s); /* pad2Octets (2 bytes) */
switch (messageType)
{
case PTR_MSG_TYPE_POSITION:
update_read_pointer_position(s, &pointer->pointer_position);
IFCALL(pointer->PointerPosition, context, &pointer->pointer_position);
break;
case PTR_MSG_TYPE_SYSTEM:
update_read_pointer_system(s, &pointer->pointer_system);
IFCALL(pointer->PointerSystem, context, &pointer->pointer_system);
break;
case PTR_MSG_TYPE_COLOR:
update_read_pointer_color(s, &pointer->pointer_color);
IFCALL(pointer->PointerColor, context, &pointer->pointer_color);
break;
case PTR_MSG_TYPE_POINTER:
update_read_pointer_new(s, &pointer->pointer_new);
IFCALL(pointer->PointerNew, context, &pointer->pointer_new);
break;
case PTR_MSG_TYPE_CACHED:
update_read_pointer_cached(s, &pointer->pointer_cached);
IFCALL(pointer->PointerCached, context, &pointer->pointer_cached);
break;
default:
break;
}
}
static BOOL rdpsnd_server_recv_formats(rdpsnd_server* rdpsnd, STREAM* s)
{
int i;
if (stream_get_left(s) < 20)
return FALSE;
stream_seek_UINT32(s); /* dwFlags */
stream_seek_UINT32(s); /* dwVolume */
stream_seek_UINT32(s); /* dwPitch */
stream_seek_UINT16(s); /* wDGramPort */
stream_read_UINT16(s, rdpsnd->context.num_client_formats); /* wNumberOfFormats */
stream_seek_BYTE(s); /* cLastBlockConfirmed */
stream_seek_UINT16(s); /* wVersion */
stream_seek_BYTE(s); /* bPad */
if (rdpsnd->context.num_client_formats > 0)
{
rdpsnd->context.client_formats = (rdpsndFormat*) malloc(rdpsnd->context.num_client_formats * sizeof(rdpsndFormat));
ZeroMemory(rdpsnd->context.client_formats, sizeof(rdpsndFormat));
for (i = 0; i < rdpsnd->context.num_client_formats; i++)
{
if (stream_get_left(s) < 18)
{
free(rdpsnd->context.client_formats);
rdpsnd->context.client_formats = NULL;
return FALSE;
}
stream_read_UINT16(s, rdpsnd->context.client_formats[i].wFormatTag);
stream_read_UINT16(s, rdpsnd->context.client_formats[i].nChannels);
stream_read_UINT32(s, rdpsnd->context.client_formats[i].nSamplesPerSec);
stream_seek_UINT32(s); /* nAvgBytesPerSec */
stream_read_UINT16(s, rdpsnd->context.client_formats[i].nBlockAlign);
stream_read_UINT16(s, rdpsnd->context.client_formats[i].wBitsPerSample);
stream_read_UINT16(s, rdpsnd->context.client_formats[i].cbSize);
if (rdpsnd->context.client_formats[i].cbSize > 0)
{
stream_seek(s, rdpsnd->context.client_formats[i].cbSize);
}
}
}
return TRUE;
}
BOOL input_recv(rdpInput* input, STREAM* s)
{
UINT16 i, numberEvents;
if (stream_get_left(s) < 4)
return FALSE;
stream_read_UINT16(s, numberEvents); /* numberEvents (2 bytes) */
stream_seek(s, 2); /* pad2Octets (2 bytes) */
/* Each input event uses 6 exactly bytes. */
if (stream_get_left(s) < 6 * numberEvents)
return FALSE;
for (i = 0; i < numberEvents; i++)
{
if (!input_recv_event(input, s))
return FALSE;
}
return TRUE;
}
static void xf_cliprdr_process_dib(clipboardContext* cb, BYTE* data, int size)
{
STREAM* s;
UINT16 bpp;
UINT32 offset;
UINT32 ncolors;
/* size should be at least sizeof(BITMAPINFOHEADER) */
if (size < 40)
{
DEBUG_X11_CLIPRDR("dib size %d too short", size);
return;
}
s = stream_new(0);
stream_attach(s, data, size);
stream_seek(s, 14);
stream_read_UINT16(s, bpp);
stream_read_UINT32(s, ncolors);
offset = 14 + 40 + (bpp <= 8 ? (ncolors == 0 ? (1 << bpp) : ncolors) * 4 : 0);
stream_detach(s);
stream_free(s);
DEBUG_X11_CLIPRDR("offset=%d bpp=%d ncolors=%d", offset, bpp, ncolors);
s = stream_new(14 + size);
stream_write_BYTE(s, 'B');
stream_write_BYTE(s, 'M');
stream_write_UINT32(s, 14 + size);
stream_write_UINT32(s, 0);
stream_write_UINT32(s, offset);
stream_write(s, data, size);
cb->data = stream_get_head(s);
cb->data_length = stream_get_length(s);
stream_detach(s);
stream_free(s);
}
static void rfx_process_message_sync(RFX_CONTEXT* context, STREAM* s)
{
UINT32 magic;
/* RFX_SYNC */
stream_read_UINT32(s, magic); /* magic (4 bytes), 0xCACCACCA */
if (magic != WF_MAGIC)
{
DEBUG_WARN("invalid magic number 0x%X", magic);
return;
}
stream_read_UINT16(s, context->version); /* version (2 bytes), WF_VERSION_1_0 (0x0100) */
if (context->version != WF_VERSION_1_0)
{
DEBUG_WARN("unknown version number 0x%X", context->version);
return;
}
DEBUG_RFX("version 0x%X", context->version);
}
static int wts_read_variable_uint(wStream* s, int cbLen, UINT32* val)
{
switch (cbLen)
{
case 0:
if (stream_get_left(s) < 1)
return 0;
stream_read_BYTE(s, *val);
return 1;
case 1:
if (stream_get_left(s) < 2)
return 0;
stream_read_UINT16(s, *val);
return 2;
default:
if (stream_get_left(s) < 4)
return 0;
stream_read_UINT32(s, *val);
return 4;
}
}
void nego_process_negotiation_failure(rdpNego* nego, STREAM* s)
{
BYTE flags;
UINT16 length;
UINT32 failureCode;
DEBUG_NEGO("RDP_NEG_FAILURE");
stream_read_BYTE(s, flags);
stream_read_UINT16(s, length);
stream_read_UINT32(s, failureCode);
switch (failureCode)
{
case SSL_REQUIRED_BY_SERVER:
DEBUG_NEGO("Error: SSL_REQUIRED_BY_SERVER");
break;
case SSL_NOT_ALLOWED_BY_SERVER:
DEBUG_NEGO("Error: SSL_NOT_ALLOWED_BY_SERVER");
break;
case SSL_CERT_NOT_ON_SERVER:
DEBUG_NEGO("Error: SSL_CERT_NOT_ON_SERVER");
break;
case INCONSISTENT_FLAGS:
DEBUG_NEGO("Error: INCONSISTENT_FLAGS");
break;
case HYBRID_REQUIRED_BY_SERVER:
DEBUG_NEGO("Error: HYBRID_REQUIRED_BY_SERVER");
break;
default:
DEBUG_NEGO("Error: Unknown protocol security error %d", failureCode);
break;
}
nego->state = NEGO_STATE_FAIL;
}
void update_read_pointer_color(STREAM* s, POINTER_COLOR_UPDATE* pointer_color)
{
stream_read_UINT16(s, pointer_color->cacheIndex); /* cacheIndex (2 bytes) */
stream_read_UINT16(s, pointer_color->xPos); /* xPos (2 bytes) */
stream_read_UINT16(s, pointer_color->yPos); /* yPos (2 bytes) */
stream_read_UINT16(s, pointer_color->width); /* width (2 bytes) */
stream_read_UINT16(s, pointer_color->height); /* height (2 bytes) */
stream_read_UINT16(s, pointer_color->lengthAndMask); /* lengthAndMask (2 bytes) */
stream_read_UINT16(s, pointer_color->lengthXorMask); /* lengthXorMask (2 bytes) */
/**
* There does not seem to be any documentation on why
* xPos / yPos can be larger than width / height
* so it is missing in documentation or a bug in implementation
* 2.2.9.1.1.4.4 Color Pointer Update (TS_COLORPOINTERATTRIBUTE)
*/
if (pointer_color->xPos >= pointer_color->width)
pointer_color->xPos = 0;
if (pointer_color->yPos >= pointer_color->height)
pointer_color->yPos = 0;
if (pointer_color->lengthXorMask > 0)
{
pointer_color->xorMaskData = (BYTE*) malloc(pointer_color->lengthXorMask);
stream_read(s, pointer_color->xorMaskData, pointer_color->lengthXorMask);
}
if (pointer_color->lengthAndMask > 0)
{
pointer_color->andMaskData = (BYTE*) malloc(pointer_color->lengthAndMask);
stream_read(s, pointer_color->andMaskData, pointer_color->lengthAndMask);
}
if (stream_get_left(s) > 0)
stream_seek_BYTE(s); /* pad (1 byte) */
}
static int update_recv_surfcmd_surface_bits(rdpUpdate* update, STREAM* s)
{
int pos;
SURFACE_BITS_COMMAND* cmd = &update->surface_bits_command;
stream_read_UINT16(s, cmd->destLeft);
stream_read_UINT16(s, cmd->destTop);
stream_read_UINT16(s, cmd->destRight);
stream_read_UINT16(s, cmd->destBottom);
stream_read_BYTE(s, cmd->bpp);
stream_seek(s, 2); /* reserved1, reserved2 */
stream_read_BYTE(s, cmd->codecID);
stream_read_UINT16(s, cmd->width);
stream_read_UINT16(s, cmd->height);
stream_read_UINT32(s, cmd->bitmapDataLength);
pos = stream_get_pos(s) + cmd->bitmapDataLength;
cmd->bitmapData = stream_get_tail(s);
IFCALL(update->SurfaceBits, update->context, cmd);
stream_set_pos(s, pos);
return 20 + cmd->bitmapDataLength;
}
static void rdpdr_process_receive(rdpSvcPlugin* plugin, STREAM* data_in)
{
UINT16 component;
UINT16 packetID;
UINT32 deviceID;
UINT32 status;
rdpdrPlugin* rdpdr = (rdpdrPlugin*) plugin;
stream_read_UINT16(data_in, component);
stream_read_UINT16(data_in, packetID);
if (component == RDPDR_CTYP_CORE)
{
switch (packetID)
{
case PAKID_CORE_SERVER_ANNOUNCE:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_SERVER_ANNOUNCE");
rdpdr_process_server_announce_request(rdpdr, data_in);
rdpdr_send_client_announce_reply(rdpdr);
rdpdr_send_client_name_request(rdpdr);
break;
case PAKID_CORE_SERVER_CAPABILITY:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_SERVER_CAPABILITY");
rdpdr_process_capability_request(rdpdr, data_in);
rdpdr_send_capability_response(rdpdr);
break;
case PAKID_CORE_CLIENTID_CONFIRM:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_CLIENTID_CONFIRM");
rdpdr_process_server_clientid_confirm(rdpdr, data_in);
rdpdr_send_device_list_announce_request(rdpdr, FALSE);
break;
case PAKID_CORE_USER_LOGGEDON:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_USER_LOGGEDON");
rdpdr_send_device_list_announce_request(rdpdr, TRUE);
break;
case PAKID_CORE_DEVICE_REPLY:
/* connect to a specific resource */
stream_read_UINT32(data_in, deviceID);
stream_read_UINT32(data_in, status);
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_DEVICE_REPLY (deviceID=%d status=0x%08X)", deviceID, status);
break;
case PAKID_CORE_DEVICE_IOREQUEST:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_DEVICE_IOREQUEST");
if (rdpdr_process_irp(rdpdr, data_in))
data_in = NULL;
break;
default:
DEBUG_WARN("RDPDR_CTYP_CORE / unknown packetID: 0x%02X", packetID);
break;
}
}
else if (component == RDPDR_CTYP_PRN)
{
DEBUG_SVC("RDPDR_CTYP_PRN");
}
else
{
DEBUG_WARN("RDPDR component: 0x%02X packetID: 0x%02X", component, packetID);
}
stream_free(data_in);
}
BOOL gcc_read_client_core_data(STREAM* s, rdpSettings* settings, UINT16 blockLength)
{
char* str;
UINT32 version;
UINT32 color_depth;
UINT16 colorDepth = 0;
UINT16 postBeta2ColorDepth = 0;
UINT16 highColorDepth = 0;
UINT16 supportedColorDepths = 0;
UINT16 earlyCapabilityFlags = 0;
UINT32 serverSelectedProtocol = 0;
/* Length of all required fields, until imeFileName */
if (blockLength < 128)
return FALSE;
stream_read_UINT32(s, version); /* version */
settings->RdpVersion = (version == RDP_VERSION_4 ? 4 : 7);
stream_read_UINT16(s, settings->DesktopWidth); /* DesktopWidth */
stream_read_UINT16(s, settings->DesktopHeight); /* DesktopHeight */
stream_read_UINT16(s, colorDepth); /* ColorDepth */
stream_seek_UINT16(s); /* SASSequence (Secure Access Sequence) */
stream_read_UINT32(s, settings->KeyboardLayout); /* KeyboardLayout */
stream_read_UINT32(s, settings->ClientBuild); /* ClientBuild */
/* clientName (32 bytes, null-terminated unicode, truncated to 15 characters) */
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) stream_get_tail(s), 32 / 2, &str, 0, NULL, NULL);
stream_seek(s, 32);
sprintf_s(settings->ClientHostname, 31, "%s", str);
settings->ClientHostname[31] = 0;
free(str);
stream_read_UINT32(s, settings->KeyboardType); /* KeyboardType */
stream_read_UINT32(s, settings->KeyboardSubType); /* KeyboardSubType */
stream_read_UINT32(s, settings->KeyboardFunctionKey); /* KeyboardFunctionKey */
stream_seek(s, 64); /* imeFileName */
blockLength -= 128;
/**
* The following fields are all optional. If one field is present, all of the preceding
* fields MUST also be present. If one field is not present, all of the subsequent fields
* MUST NOT be present.
* We must check the bytes left before reading each field.
*/
do
{
if (blockLength < 2)
break;
stream_read_UINT16(s, postBeta2ColorDepth); /* postBeta2ColorDepth */
blockLength -= 2;
if (blockLength < 2)
break;
stream_seek_UINT16(s); /* clientProductID */
blockLength -= 2;
if (blockLength < 4)
break;
stream_seek_UINT32(s); /* serialNumber */
blockLength -= 4;
if (blockLength < 2)
break;
stream_read_UINT16(s, highColorDepth); /* highColorDepth */
blockLength -= 2;
if (blockLength < 2)
break;
stream_read_UINT16(s, supportedColorDepths); /* supportedColorDepths */
blockLength -= 2;
if (blockLength < 2)
break;
stream_read_UINT16(s, earlyCapabilityFlags); /* earlyCapabilityFlags */
blockLength -= 2;
if (blockLength < 64)
break;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) stream_get_tail(s), 64 / 2, &str, 0, NULL, NULL);
stream_seek(s, 64);
sprintf_s(settings->ClientProductId, 32, "%s", str);
free(str);
blockLength -= 64;
if (blockLength < 1)
break;
stream_read_BYTE(s, settings->PerformanceFlags); /* connectionType */
blockLength -= 1;
if (blockLength < 1)
break;
stream_seek_BYTE(s); /* pad1octet */
blockLength -= 1;
if (blockLength < 4)
break;
stream_read_UINT32(s, serverSelectedProtocol); /* serverSelectedProtocol */
blockLength -= 4;
if (settings->SelectedProtocol != serverSelectedProtocol)
return FALSE;
} while (0);
if (highColorDepth > 0)
{
color_depth = highColorDepth;
}
else if (postBeta2ColorDepth > 0)
{
switch (postBeta2ColorDepth)
{
case RNS_UD_COLOR_4BPP:
color_depth = 4;
break;
case RNS_UD_COLOR_8BPP:
color_depth = 8;
break;
case RNS_UD_COLOR_16BPP_555:
color_depth = 15;
break;
case RNS_UD_COLOR_16BPP_565:
color_depth = 16;
break;
case RNS_UD_COLOR_24BPP:
color_depth = 24;
break;
default:
return FALSE;
}
}
else
{
switch (colorDepth)
{
case RNS_UD_COLOR_4BPP:
color_depth = 4;
break;
case RNS_UD_COLOR_8BPP:
color_depth = 8;
break;
default:
return FALSE;
}
}
/*
* If we are in server mode, accept client's color depth only if
* it is smaller than ours. This is what Windows server does.
*/
if (color_depth < settings->ColorDepth || !settings->ServerMode)
settings->ColorDepth = color_depth;
return TRUE;
}
BOOL certificate_read_server_proprietary_certificate(rdpCertificate* certificate, wStream* s)
{
UINT32 dwSigAlgId;
UINT32 dwKeyAlgId;
UINT32 wPublicKeyBlobType;
UINT32 wPublicKeyBlobLen;
UINT32 wSignatureBlobType;
UINT32 wSignatureBlobLen;
BYTE* sigdata;
int sigdatalen;
if(stream_get_left(s) < 12)
return FALSE;
/* -4, because we need to include dwVersion */
sigdata = stream_get_tail(s) - 4;
stream_read_UINT32(s, dwSigAlgId);
stream_read_UINT32(s, dwKeyAlgId);
if (!(dwSigAlgId == SIGNATURE_ALG_RSA && dwKeyAlgId == KEY_EXCHANGE_ALG_RSA))
{
fprintf(stderr, "certificate_read_server_proprietary_certificate: parse error 1\n");
return FALSE;
}
stream_read_UINT16(s, wPublicKeyBlobType);
if (wPublicKeyBlobType != BB_RSA_KEY_BLOB)
{
fprintf(stderr, "certificate_read_server_proprietary_certificate: parse error 2\n");
return FALSE;
}
stream_read_UINT16(s, wPublicKeyBlobLen);
if(stream_get_left(s) < wPublicKeyBlobLen)
return FALSE;
if (!certificate_process_server_public_key(certificate, s, wPublicKeyBlobLen))
{
fprintf(stderr, "certificate_read_server_proprietary_certificate: parse error 3\n");
return FALSE;
}
if(stream_get_left(s) < 4)
return FALSE;
sigdatalen = stream_get_tail(s) - sigdata;
stream_read_UINT16(s, wSignatureBlobType);
if (wSignatureBlobType != BB_RSA_SIGNATURE_BLOB)
{
fprintf(stderr, "certificate_read_server_proprietary_certificate: parse error 4\n");
return FALSE;
}
stream_read_UINT16(s, wSignatureBlobLen);
if(stream_get_left(s) < wSignatureBlobLen)
return FALSE;
if (wSignatureBlobLen != 72)
{
fprintf(stderr, "certificate_process_server_public_signature: invalid signature length (got %d, expected %d)\n", wSignatureBlobLen, 64);
return FALSE;
}
if (!certificate_process_server_public_signature(certificate, sigdata, sigdatalen, s, wSignatureBlobLen))
{
fprintf(stderr, "certificate_read_server_proprietary_certificate: parse error 5\n");
return FALSE;
}
return TRUE;
}
BOOL rdp_decrypt(rdpRdp* rdp, STREAM* s, int length, UINT16 securityFlags)
{
BYTE cmac[8];
BYTE wmac[8];
if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
{
UINT16 len;
BYTE version, pad;
BYTE* sig;
if (stream_get_left(s) < 12)
return FALSE;
stream_read_UINT16(s, len); /* 0x10 */
stream_read_BYTE(s, version); /* 0x1 */
stream_read_BYTE(s, pad);
sig = s->p;
stream_seek(s, 8); /* signature */
length -= 12;
if (!security_fips_decrypt(s->p, length, rdp))
{
printf("FATAL: cannot decrypt\n");
return FALSE; /* TODO */
}
if (!security_fips_check_signature(s->p, length - pad, sig, rdp))
{
printf("FATAL: invalid packet signature\n");
return FALSE; /* TODO */
}
/* is this what needs adjusting? */
s->size -= pad;
return TRUE;
}
if (stream_get_left(s) < 8)
return FALSE;
stream_read(s, wmac, sizeof(wmac));
length -= sizeof(wmac);
security_decrypt(s->p, length, rdp);
if (securityFlags & SEC_SECURE_CHECKSUM)
security_salted_mac_signature(rdp, s->p, length, FALSE, cmac);
else
security_mac_signature(rdp, s->p, length, cmac);
if (memcmp(wmac, cmac, sizeof(wmac)) != 0)
{
printf("WARNING: invalid packet signature\n");
/*
* Because Standard RDP Security is totally broken,
* and cannot protect against MITM, don't treat signature
* verification failure as critical. This at least enables
* us to work with broken RDP clients and servers that
* generate invalid signatures.
*/
//return FALSE;
}
return TRUE;
}
BOOL update_read_window_state_order(wStream* s, WINDOW_ORDER_INFO* orderInfo, WINDOW_STATE_ORDER* window_state)
{
int i;
int size;
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_OWNER) {
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, window_state->ownerWindowId); /* ownerWindowId (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_STYLE)
{
if(stream_get_left(s) < 8)
return FALSE;
stream_read_UINT32(s, window_state->style); /* style (4 bytes) */
stream_read_UINT32(s, window_state->extendedStyle); /* extendedStyle (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_SHOW) {
if(stream_get_left(s) < 1)
return FALSE;
stream_read_BYTE(s, window_state->showState); /* showState (1 byte) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_TITLE) {
if(!rail_read_unicode_string(s, &window_state->titleInfo)) /* titleInfo */
return FALSE;
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_OFFSET)
{
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, window_state->clientOffsetX); /* clientOffsetX (4 bytes) */
stream_read_UINT32(s, window_state->clientOffsetY); /* clientOffsetY (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_SIZE)
{
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, window_state->clientAreaWidth); /* clientAreaWidth (4 bytes) */
stream_read_UINT32(s, window_state->clientAreaHeight); /* clientAreaHeight (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RP_CONTENT) {
if(stream_get_left(s) < 1)
return FALSE;
stream_read_BYTE(s, window_state->RPContent); /* RPContent (1 byte) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ROOT_PARENT) {
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, window_state->rootParentHandle);/* rootParentHandle (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_OFFSET)
{
if(stream_get_left(s) < 8)
return FALSE;
stream_read_UINT32(s, window_state->windowOffsetX); /* windowOffsetX (4 bytes) */
stream_read_UINT32(s, window_state->windowOffsetY); /* windowOffsetY (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_CLIENT_DELTA)
{
if(stream_get_left(s) < 8)
return FALSE;
stream_read_UINT32(s, window_state->windowClientDeltaX); /* windowClientDeltaX (4 bytes) */
stream_read_UINT32(s, window_state->windowClientDeltaY); /* windowClientDeltaY (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_SIZE)
{
if(stream_get_left(s) < 8)
return FALSE;
stream_read_UINT32(s, window_state->windowWidth); /* windowWidth (4 bytes) */
stream_read_UINT32(s, window_state->windowHeight); /* windowHeight (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_RECTS)
{
if(stream_get_left(s) < 2)
return FALSE;
stream_read_UINT16(s, window_state->numWindowRects); /* numWindowRects (2 bytes) */
size = sizeof(RECTANGLE_16) * window_state->numWindowRects;
window_state->windowRects = (RECTANGLE_16*) malloc(size);
if(stream_get_left(s) < 8 * window_state->numWindowRects)
return FALSE;
/* windowRects */
for (i = 0; i < (int) window_state->numWindowRects; i++)
{
stream_read_UINT16(s, window_state->windowRects[i].left); /* left (2 bytes) */
stream_read_UINT16(s, window_state->windowRects[i].top); /* top (2 bytes) */
stream_read_UINT16(s, window_state->windowRects[i].right); /* right (2 bytes) */
stream_read_UINT16(s, window_state->windowRects[i].bottom); /* bottom (2 bytes) */
}
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VIS_OFFSET)
{
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, window_state->visibleOffsetX); /* visibleOffsetX (4 bytes) */
stream_read_UINT32(s, window_state->visibleOffsetY); /* visibleOffsetY (4 bytes) */
}
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VISIBILITY)
{
if(stream_get_left(s) < 2)
return FALSE;
stream_read_UINT16(s, window_state->numVisibilityRects); /* numVisibilityRects (2 bytes) */
size = sizeof(RECTANGLE_16) * window_state->numVisibilityRects;
window_state->visibilityRects = (RECTANGLE_16*) malloc(size);
if(stream_get_left(s) < window_state->numVisibilityRects * 8)
return FALSE;
/* visibilityRects */
for (i = 0; i < (int) window_state->numVisibilityRects; i++)
{
stream_read_UINT16(s, window_state->visibilityRects[i].left); /* left (2 bytes) */
stream_read_UINT16(s, window_state->visibilityRects[i].top); /* top (2 bytes) */
stream_read_UINT16(s, window_state->visibilityRects[i].right); /* right (2 bytes) */
stream_read_UINT16(s, window_state->visibilityRects[i].bottom); /* bottom (2 bytes) */
}
}
return TRUE;
}
void update_read_pointer_position(STREAM* s, POINTER_POSITION_UPDATE* pointer_position)
{
stream_read_UINT16(s, pointer_position->xPos); /* xPos (2 bytes) */
stream_read_UINT16(s, pointer_position->yPos); /* yPos (2 bytes) */
}
BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, STREAM* s)
{
UINT16 flags;
UINT16 length;
rdpRedirection* redirection = rdp->redirection;
if(stream_get_left(s) < 12)
return FALSE;
stream_read_UINT16(s, flags); /* flags (2 bytes) */
stream_read_UINT16(s, length); /* length (2 bytes) */
stream_read_UINT32(s, redirection->sessionID); /* sessionID (4 bytes) */
stream_read_UINT32(s, redirection->flags); /* redirFlags (4 bytes) */
DEBUG_REDIR("flags: 0x%04X, length:%d, sessionID:0x%08X", flags, length, redirection->sessionID);
#ifdef WITH_DEBUG_REDIR
rdp_print_redirection_flags(redirection->flags);
#endif
if (redirection->flags & LB_TARGET_NET_ADDRESS)
{
if(!freerdp_string_read_length32(s, &redirection->targetNetAddress))
return FALSE;
DEBUG_REDIR("targetNetAddress: %s", redirection->targetNetAddress.ascii);
}
if (redirection->flags & LB_LOAD_BALANCE_INFO)
{
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, redirection->LoadBalanceInfoLength);
if(stream_get_left(s) < redirection->LoadBalanceInfoLength)
return FALSE;
redirection->LoadBalanceInfo = (BYTE*) malloc(redirection->LoadBalanceInfoLength);
stream_read(s, redirection->LoadBalanceInfo, redirection->LoadBalanceInfoLength);
#ifdef WITH_DEBUG_REDIR
DEBUG_REDIR("loadBalanceInfo:");
winpr_HexDump(redirection->LoadBalanceInfo, redirection->LoadBalanceInfoLength);
#endif
}
if (redirection->flags & LB_USERNAME)
{
if(!freerdp_string_read_length32(s, &redirection->username))
return FALSE;
DEBUG_REDIR("username: %s", redirection->username.ascii);
}
if (redirection->flags & LB_DOMAIN)
{
if(!freerdp_string_read_length32(s, &redirection->domain))
return FALSE;
DEBUG_REDIR("domain: %s", redirection->domain.ascii);
}
if (redirection->flags & LB_PASSWORD)
{
/* Note: length (hopefully) includes double zero termination */
if(stream_get_left(s) < 4)
return FALSE;
stream_read_UINT32(s, redirection->PasswordCookieLength);
redirection->PasswordCookie = (BYTE*) malloc(redirection->PasswordCookieLength);
stream_read(s, redirection->PasswordCookie, redirection->PasswordCookieLength);
#ifdef WITH_DEBUG_REDIR
DEBUG_REDIR("password_cookie:");
winpr_HexDump(redirection->PasswordCookie, redirection->PasswordCookieLength);
#endif
}
if (redirection->flags & LB_TARGET_FQDN)
{
if(!freerdp_string_read_length32(s, &redirection->targetFQDN))
return FALSE;
DEBUG_REDIR("targetFQDN: %s", redirection->targetFQDN.ascii);
}
if (redirection->flags & LB_TARGET_NETBIOS_NAME)
{
if(!freerdp_string_read_length32(s, &redirection->targetNetBiosName))
return FALSE;
DEBUG_REDIR("targetNetBiosName: %s", redirection->targetNetBiosName.ascii);
}
if (redirection->flags & LB_CLIENT_TSV_URL)
{
if(!freerdp_string_read_length32(s, &redirection->tsvUrl))
return FALSE;
DEBUG_REDIR("tsvUrl: %s", redirection->tsvUrl.ascii);
}
if (redirection->flags & LB_TARGET_NET_ADDRESSES)
{
int i;
UINT32 count;
UINT32 targetNetAddressesLength;
if(stream_get_left(s) < 8)
return FALSE;
stream_read_UINT32(s, targetNetAddressesLength);
stream_read_UINT32(s, redirection->targetNetAddressesCount);
count = redirection->targetNetAddressesCount;
redirection->targetNetAddresses = (rdpString*) malloc(count * sizeof(rdpString));
ZeroMemory(redirection->targetNetAddresses, count * sizeof(rdpString));
for (i = 0; i < (int) count; i++)
{
if(!freerdp_string_read_length32(s, &redirection->targetNetAddresses[i]))
return FALSE;
DEBUG_REDIR("targetNetAddresses: %s", (&redirection->targetNetAddresses[i])->ascii);
}
}
if (!stream_skip(s, 8)) /* pad (8 bytes) */
return FALSE;
if (redirection->flags & LB_NOREDIRECT)
return TRUE;
else
return rdp_client_redirect(rdp);
}
void rail_read_pdu_header(STREAM* s, UINT16* orderType, UINT16* orderLength)
{
stream_read_UINT16(s, *orderType); /* orderType (2 bytes) */
stream_read_UINT16(s, *orderLength); /* orderLength (2 bytes) */
}
static BOOL rfx_process_message_tileset(RFX_CONTEXT* context, RFX_MESSAGE* message, STREAM* s)
{
int i;
int pos;
BYTE quant;
UINT32* quants;
UINT16 subtype;
UINT32 blockLen;
UINT32 blockType;
UINT32 tilesDataSize;
PTP_WORK* work_objects = NULL;
RFX_TILE_WORK_PARAM* params = NULL;
if (stream_get_left(s) < 14)
{
DEBUG_WARN("RfxMessageTileSet packet too small");
return FALSE;
}
stream_read_UINT16(s, subtype); /* subtype (2 bytes) must be set to CBT_TILESET (0xCAC2) */
if (subtype != CBT_TILESET)
{
DEBUG_WARN("invalid subtype, expected CBT_TILESET.");
return FALSE;
}
stream_seek_UINT16(s); /* idx (2 bytes), must be set to 0x0000 */
stream_seek_UINT16(s); /* properties (2 bytes) */
stream_read_BYTE(s, context->num_quants); /* numQuant (1 byte) */
stream_seek_BYTE(s); /* tileSize (1 byte), must be set to 0x40 */
if (context->num_quants < 1)
{
DEBUG_WARN("no quantization value.");
return TRUE;
}
stream_read_UINT16(s, message->num_tiles); /* numTiles (2 bytes) */
if (message->num_tiles < 1)
{
DEBUG_WARN("no tiles.");
return TRUE;
}
stream_read_UINT32(s, tilesDataSize); /* tilesDataSize (4 bytes) */
if (context->quants != NULL)
context->quants = (UINT32*) realloc((void*) context->quants, context->num_quants * 10 * sizeof(UINT32));
else
context->quants = (UINT32*) malloc(context->num_quants * 10 * sizeof(UINT32));
quants = context->quants;
/* quantVals */
if (stream_get_left(s) < context->num_quants * 5)
{
DEBUG_WARN("RfxMessageTileSet packet too small for num_quants=%d", context->num_quants);
return FALSE;
}
for (i = 0; i < context->num_quants; i++)
{
/* RFX_CODEC_QUANT */
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
DEBUG_RFX("quant %d (%d %d %d %d %d %d %d %d %d %d).",
i, context->quants[i * 10], context->quants[i * 10 + 1],
context->quants[i * 10 + 2], context->quants[i * 10 + 3],
context->quants[i * 10 + 4], context->quants[i * 10 + 5],
context->quants[i * 10 + 6], context->quants[i * 10 + 7],
context->quants[i * 10 + 8], context->quants[i * 10 + 9]);
}
message->tiles = (RFX_TILE**) malloc(sizeof(RFX_TILE*) * message->num_tiles);
ZeroMemory(message->tiles, sizeof(RFX_TILE*) * message->num_tiles);
if (context->priv->UseThreads)
{
work_objects = (PTP_WORK*) malloc(sizeof(PTP_WORK) * message->num_tiles);
params = (RFX_TILE_WORK_PARAM*) malloc(sizeof(RFX_TILE_WORK_PARAM) * message->num_tiles);
}
/* tiles */
for (i = 0; i < message->num_tiles; i++)
{
/* RFX_TILE */
if (stream_get_left(s) < 6)
{
DEBUG_WARN("RfxMessageTileSet packet too small to read tile %d/%d", i, message->num_tiles);
return FALSE;
}
stream_read_UINT16(s, blockType); /* blockType (2 bytes), must be set to CBT_TILE (0xCAC3) */
stream_read_UINT32(s, blockLen); /* blockLen (4 bytes) */
if (stream_get_left(s) < blockLen - 6)
{
DEBUG_WARN("RfxMessageTileSet not enough bytes to read tile %d/%d with blocklen=%d", i, message->num_tiles, blockLen);
return FALSE;
}
pos = stream_get_pos(s) - 6 + blockLen;
if (blockType != CBT_TILE)
{
DEBUG_WARN("unknown block type 0x%X, expected CBT_TILE (0xCAC3).", blockType);
break;
}
message->tiles[i] = rfx_tile_pool_take(context);
if (context->priv->UseThreads)
{
params[i].context = context;
params[i].tile = message->tiles[i];
CopyMemory(&(params[i].s), s, sizeof(STREAM));
work_objects[i] = CreateThreadpoolWork((PTP_WORK_CALLBACK) rfx_process_message_tile_work_callback,
(void*) ¶ms[i], &context->priv->ThreadPoolEnv);
SubmitThreadpoolWork(work_objects[i]);
}
else
{
rfx_process_message_tile(context, message->tiles[i], s);
}
stream_set_pos(s, pos);
}
if (context->priv->UseThreads)
{
for (i = 0; i < message->num_tiles; i++)
WaitForThreadpoolWorkCallbacks(work_objects[i], FALSE);
free(work_objects);
free(params);
}
return TRUE;
}
void update_read_pointer_new(STREAM* s, POINTER_NEW_UPDATE* pointer_new)
{
stream_read_UINT16(s, pointer_new->xorBpp); /* xorBpp (2 bytes) */
update_read_pointer_color(s, &pointer_new->colorPtrAttr); /* colorPtrAttr */
}
void update_read_pointer_cached(STREAM* s, POINTER_CACHED_UPDATE* pointer_cached)
{
stream_read_UINT16(s, pointer_cached->cacheIndex); /* cacheIndex (2 bytes) */
}
static void rfx_process_message_tileset(RFX_CONTEXT* context, RFX_MESSAGE* message, STREAM* s)
{
int i;
UINT16 subtype;
UINT32 blockLen;
UINT32 blockType;
UINT32 tilesDataSize;
UINT32* quants;
BYTE quant;
int pos;
stream_read_UINT16(s, subtype); /* subtype (2 bytes) must be set to CBT_TILESET (0xCAC2) */
if (subtype != CBT_TILESET)
{
DEBUG_WARN("invalid subtype, expected CBT_TILESET.");
return;
}
stream_seek_UINT16(s); /* idx (2 bytes), must be set to 0x0000 */
stream_seek_UINT16(s); /* properties (2 bytes) */
stream_read_BYTE(s, context->num_quants); /* numQuant (1 byte) */
stream_seek_BYTE(s); /* tileSize (1 byte), must be set to 0x40 */
if (context->num_quants < 1)
{
DEBUG_WARN("no quantization value.");
return;
}
stream_read_UINT16(s, message->num_tiles); /* numTiles (2 bytes) */
if (message->num_tiles < 1)
{
DEBUG_WARN("no tiles.");
return;
}
stream_read_UINT32(s, tilesDataSize); /* tilesDataSize (4 bytes) */
if (context->quants != NULL)
context->quants = (UINT32*) realloc((void*) context->quants, context->num_quants * 10 * sizeof(UINT32));
else
context->quants = (UINT32*) malloc(context->num_quants * 10 * sizeof(UINT32));
quants = context->quants;
/* quantVals */
for (i = 0; i < context->num_quants; i++)
{
/* RFX_CODEC_QUANT */
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
stream_read_BYTE(s, quant);
*quants++ = (quant & 0x0F);
*quants++ = (quant >> 4);
DEBUG_RFX("quant %d (%d %d %d %d %d %d %d %d %d %d).",
i, context->quants[i * 10], context->quants[i * 10 + 1],
context->quants[i * 10 + 2], context->quants[i * 10 + 3],
context->quants[i * 10 + 4], context->quants[i * 10 + 5],
context->quants[i * 10 + 6], context->quants[i * 10 + 7],
context->quants[i * 10 + 8], context->quants[i * 10 + 9]);
}
message->tiles = rfx_pool_get_tiles(context->priv->pool, message->num_tiles);
/* tiles */
for (i = 0; i < message->num_tiles; i++)
{
/* RFX_TILE */
stream_read_UINT16(s, blockType); /* blockType (2 bytes), must be set to CBT_TILE (0xCAC3) */
stream_read_UINT32(s, blockLen); /* blockLen (4 bytes) */
pos = stream_get_pos(s) - 6 + blockLen;
if (blockType != CBT_TILE)
{
DEBUG_WARN("unknown block type 0x%X, expected CBT_TILE (0xCAC3).", blockType);
break;
}
rfx_process_message_tile(context, message->tiles[i], s);
stream_set_pos(s, pos);
}
}
void rdp_read_security_header(STREAM* s, UINT16* flags)
{
/* Basic Security Header */
stream_read_UINT16(s, *flags); /* flags */
stream_seek(s, 2); /* flagsHi (unused) */
}
RFX_MESSAGE* rfx_process_message(RFX_CONTEXT* context, BYTE* data, UINT32 length)
{
int pos;
STREAM* s;
UINT32 blockLen;
UINT32 blockType;
RFX_MESSAGE* message;
message = (RFX_MESSAGE*) malloc(sizeof(RFX_MESSAGE));
ZeroMemory(message, sizeof(RFX_MESSAGE));
s = stream_new(0);
stream_attach(s, data, length);
while (stream_get_left(s) > 6)
{
/* RFX_BLOCKT */
stream_read_UINT16(s, blockType); /* blockType (2 bytes) */
stream_read_UINT32(s, blockLen); /* blockLen (4 bytes) */
DEBUG_RFX("blockType 0x%X blockLen %d", blockType, blockLen);
if (blockLen == 0)
{
DEBUG_WARN("zero blockLen");
break;
}
if (stream_get_left(s) < blockLen - 6)
{
DEBUG_WARN("rfx_process_message: packet too small for blocklen=%d", blockLen);
break;
}
pos = stream_get_pos(s) - 6 + blockLen;
if (blockType >= WBT_CONTEXT && blockType <= WBT_EXTENSION)
{
/* RFX_CODEC_CHANNELT */
/* codecId (1 byte) must be set to 0x01 */
/* channelId (1 byte) must be set to 0x00 */
if (!stream_skip(s, 2))
{
DEBUG_WARN("rfx_process_message: unable to skip RFX_CODEC_CHANNELT");
break;
}
}
switch (blockType)
{
case WBT_SYNC:
rfx_process_message_sync(context, s);
break;
case WBT_CODEC_VERSIONS:
rfx_process_message_codec_versions(context, s);
break;
case WBT_CHANNELS:
rfx_process_message_channels(context, s);
break;
case WBT_CONTEXT:
rfx_process_message_context(context, s);
break;
case WBT_FRAME_BEGIN:
rfx_process_message_frame_begin(context, message, s);
break;
case WBT_FRAME_END:
rfx_process_message_frame_end(context, message, s);
break;
case WBT_REGION:
rfx_process_message_region(context, message, s);
break;
case WBT_EXTENSION:
rfx_process_message_tileset(context, message, s);
break;
default:
DEBUG_WARN("unknown blockType 0x%X", blockType);
break;
}
stream_set_pos(s, pos);
}
stream_detach(s);
stream_free(s);
return message;
}
void update_read_bitmap_data(STREAM* s, BITMAP_DATA* bitmap_data)
{
stream_read_UINT16(s, bitmap_data->destLeft);
stream_read_UINT16(s, bitmap_data->destTop);
stream_read_UINT16(s, bitmap_data->destRight);
stream_read_UINT16(s, bitmap_data->destBottom);
stream_read_UINT16(s, bitmap_data->width);
stream_read_UINT16(s, bitmap_data->height);
stream_read_UINT16(s, bitmap_data->bitsPerPixel);
stream_read_UINT16(s, bitmap_data->flags);
stream_read_UINT16(s, bitmap_data->bitmapLength);
if (bitmap_data->flags & BITMAP_COMPRESSION)
{
if (!(bitmap_data->flags & NO_BITMAP_COMPRESSION_HDR))
{
stream_read_UINT16(s, bitmap_data->cbCompFirstRowSize); /* cbCompFirstRowSize (2 bytes) */
stream_read_UINT16(s, bitmap_data->cbCompMainBodySize); /* cbCompMainBodySize (2 bytes) */
stream_read_UINT16(s, bitmap_data->cbScanWidth); /* cbScanWidth (2 bytes) */
stream_read_UINT16(s, bitmap_data->cbUncompressedSize); /* cbUncompressedSize (2 bytes) */
bitmap_data->bitmapLength = bitmap_data->cbCompMainBodySize;
}
bitmap_data->compressed = TRUE;
stream_get_mark(s, bitmap_data->bitmapDataStream);
stream_seek(s, bitmap_data->bitmapLength);
}
else
{
bitmap_data->compressed = FALSE;
stream_get_mark(s, bitmap_data->bitmapDataStream);
stream_seek(s, bitmap_data->bitmapLength);
}
}
