Added clipboard CB_HUGE_FILE_SUPPORT_ENABLED flag

(cherry picked from commit f282c55c7a)

channels/cliprdr/client/cliprdr_main.c

@@ -119,6 +119,9 @@ static void cliprdr_print_general_capability_flags(UINT32 flags)
 	if (flags & CB_CAN_LOCK_CLIPDATA)
 		WLog_INFO(TAG, "\tCB_CAN_LOCK_CLIPDATA");
 
+	if (flags & CB_HUGE_FILE_SUPPORT_ENABLED)
+		WLog_INFO(TAG, "\tCB_HUGE_FILE_SUPPORT_ENABLED");
+
 	WLog_INFO(TAG, "}");
 }
 #endif
@@ -157,6 +160,7 @@ static UINT cliprdr_process_general_capability(cliprdrPlugin* cliprdr, wStream*
 	cliprdr->streamFileClipEnabled = (generalFlags & CB_STREAM_FILECLIP_ENABLED);
 	cliprdr->fileClipNoFilePaths = (generalFlags & CB_FILECLIP_NO_FILE_PATHS);
 	cliprdr->canLockClipData = (generalFlags & CB_CAN_LOCK_CLIPDATA);
+	cliprdr->hasHugeFileSupport = (generalFlags & CB_HUGE_FILE_SUPPORT_ENABLED);
 	cliprdr->capabilitiesReceived = TRUE;
 
 	if (!context->custom)
@@ -571,11 +575,14 @@ static UINT cliprdr_client_capabilities(CliprdrClientContext* context,
 		flags &= ~CB_FILECLIP_NO_FILE_PATHS;
 	if (!cliprdr->canLockClipData)
 		flags &= CB_CAN_LOCK_CLIPDATA;
+	if (!cliprdr->hasHugeFileSupport)
+		flags &= CB_HUGE_FILE_SUPPORT_ENABLED;
 
 	cliprdr->useLongFormatNames = flags & CB_USE_LONG_FORMAT_NAMES;
 	cliprdr->streamFileClipEnabled = flags & CB_STREAM_FILECLIP_ENABLED;
 	cliprdr->fileClipNoFilePaths = flags & CB_FILECLIP_NO_FILE_PATHS;
 	cliprdr->canLockClipData = flags & CB_CAN_LOCK_CLIPDATA;
+	cliprdr->hasHugeFileSupport = flags & CB_HUGE_FILE_SUPPORT_ENABLED;
 
 	Stream_Write_UINT32(s, flags); /* generalFlags */
 	WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientCapabilities");
@@ -774,6 +781,18 @@ cliprdr_client_file_contents_request(CliprdrClientContext* context,
 	wStream* s;
 	cliprdrPlugin* cliprdr = (cliprdrPlugin*)context->handle;
 
+	if (!cliprdr)
+		return ERROR_INTERNAL_ERROR;
+
+	if (!cliprdr->hasHugeFileSupport)
+	{
+		if (((UINT64)fileContentsRequest->cbRequested + fileContentsRequest->nPositionLow) >
+		    UINT32_MAX)
+			return ERROR_INVALID_PARAMETER;
+		if (fileContentsRequest->nPositionHigh != 0)
+			return ERROR_INVALID_PARAMETER;
+	}
+
 	s = cliprdr_packet_file_contents_request_new(fileContentsRequest);
 
 	if (!s)

channels/cliprdr/client/cliprdr_main.h

@@ -49,6 +49,7 @@ struct cliprdr_plugin
 	BOOL streamFileClipEnabled;
 	BOOL fileClipNoFilePaths;
 	BOOL canLockClipData;
+	BOOL hasHugeFileSupport;
 };
 typedef struct cliprdr_plugin cliprdrPlugin;
 

channels/cliprdr/server/cliprdr_main.c

@@ -453,6 +453,10 @@ static UINT cliprdr_server_receive_general_capability(CliprdrServerContext* cont
 	if (context->canLockClipData)
 		context->canLockClipData = (cap_set->generalFlags & CB_CAN_LOCK_CLIPDATA) ? TRUE : FALSE;
 
+	if (context->hasHugeFileSupport)
+		context->hasHugeFileSupport =
+		    (cap_set->generalFlags & CB_HUGE_FILE_SUPPORT_ENABLED) ? TRUE : FALSE;
+
 	return CHANNEL_RC_OK;
 }
 
@@ -776,6 +780,13 @@ static UINT cliprdr_server_receive_filecontents_request(CliprdrServerContext* co
 	if ((error = cliprdr_read_file_contents_request(s, &request)))
 		return error;
 
+	if (!context->hasHugeFileSupport)
+	{
+		if (request.nPositionHigh > 0)
+			return ERROR_INVALID_DATA;
+		if ((UINT64)request.nPositionLow + request.cbRequested > UINT32_MAX)
+			return ERROR_INVALID_DATA;
+	}
 	IFCALLRET(context->ClientFileContentsRequest, error, context, &request);
 
 	if (error)
@@ -948,6 +959,9 @@ static UINT cliprdr_server_init(CliprdrServerContext* context)
 	if (context->canLockClipData)
 		generalFlags |= CB_CAN_LOCK_CLIPDATA;
 
+	if (context->hasHugeFileSupport)
+		generalFlags |= CB_HUGE_FILE_SUPPORT_ENABLED;
+
 	capabilities.msgType = CB_CLIP_CAPS;
 	capabilities.msgFlags = 0;
 	capabilities.dataLen = 4 + CB_CAPSTYPE_GENERAL_LEN;

client/Wayland/wlf_cliprdr.c

@@ -306,7 +306,8 @@ static UINT wlf_cliprdr_send_client_capabilities(wfClipboard* clipboard)
 	generalCapabilitySet.generalFlags = CB_USE_LONG_FORMAT_NAMES;
 
 	if (clipboard->streams_supported && clipboard->file_formats_registered)
-		generalCapabilitySet.generalFlags |= CB_STREAM_FILECLIP_ENABLED | CB_FILECLIP_NO_FILE_PATHS;
+		generalCapabilitySet.generalFlags |=
+		    CB_STREAM_FILECLIP_ENABLED | CB_FILECLIP_NO_FILE_PATHS | CB_HUGE_FILE_SUPPORT_ENABLED;
 
 	return clipboard->context->ClientCapabilities(clipboard->context, &capabilities);
 }

client/X11/xf_cliprdr.c

@@ -1064,7 +1064,8 @@ static UINT xf_cliprdr_send_client_capabilities(xfClipboard* clipboard)
 	generalCapabilitySet.generalFlags = CB_USE_LONG_FORMAT_NAMES;
 
 	if (clipboard->streams_supported && clipboard->file_formats_registered)
-		generalCapabilitySet.generalFlags |= CB_STREAM_FILECLIP_ENABLED | CB_FILECLIP_NO_FILE_PATHS;
+		generalCapabilitySet.generalFlags |=
+		    CB_STREAM_FILECLIP_ENABLED | CB_FILECLIP_NO_FILE_PATHS | CB_HUGE_FILE_SUPPORT_ENABLED;
 
 	return clipboard->context->ClientCapabilities(clipboard->context, &capabilities);
 }

include/freerdp/channels/cliprdr.h

@@ -70,6 +70,7 @@
 #define CB_STREAM_FILECLIP_ENABLED 0x00000004
 #define CB_FILECLIP_NO_FILE_PATHS 0x00000008
 #define CB_CAN_LOCK_CLIPDATA 0x00000010
+#define CB_HUGE_FILE_SUPPORT_ENABLED 0x00000020
 
 /* File Contents Request Flags */
 #define FILECONTENTS_SIZE 0x00000001

include/freerdp/server/cliprdr.h

@@ -94,6 +94,7 @@ struct _cliprdr_server_context
 	BOOL streamFileClipEnabled;
 	BOOL fileClipNoFilePaths;
 	BOOL canLockClipData;
+	BOOL hasHugeFileSupport;
 
 	psCliprdrOpen Open;
 	psCliprdrClose Close;

server/proxy/pf_cliprdr.c

@@ -45,6 +45,7 @@ BOOL pf_server_cliprdr_init(pServerContext* ps)
 	cliprdr->streamFileClipEnabled = TRUE;
 	cliprdr->fileClipNoFilePaths = TRUE;
 	cliprdr->canLockClipData = TRUE;
+	cliprdr->hasHugeFileSupport = TRUE;
 
 	/* disable initialization sequence, for caps sync */
 	cliprdr->autoInitializationSequence = FALSE;