VBoxGuestR3LibClipboard.cpp@ 100381

Last change on this file since 100381 was 100381, checked in by vboxsync, 23 months ago
Shared Clipboard: Linux build fixes. bugref:9437
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1	/* $Id: VBoxGuestR3LibClipboard.cpp 100381 2023-07-05 09:15:19Z vboxsync $ */
2	/** @file
3	* VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Shared Clipboard.
4	*/
5
6	/*
7	* Copyright (C) 2007-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.215389.xyz.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* The contents of this file may alternatively be used under the terms
26	* of the Common Development and Distribution License Version 1.0
27	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28	* in the VirtualBox distribution, in which case the provisions of the
29	* CDDL are applicable instead of those of the GPL.
30	*
31	* You may elect to license modified versions of this file under the
32	* terms and conditions of either the GPL or the CDDL or both.
33	*
34	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35	*/
36
37
38	/*********************************************************************************************************************************
39	* Header Files *
40	*********************************************************************************************************************************/
41	#include <VBox/GuestHost/SharedClipboard.h>
42	#include <VBox/GuestHost/clipboard-helper.h>
43	#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS
44	# include <VBox/GuestHost/SharedClipboard-transfers.h>
45	#endif
46	#include <VBox/HostServices/VBoxClipboardSvc.h>
47	#include <VBox/err.h>
48	#include <iprt/assert.h>
49	#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS
50	# include <iprt/dir.h>
51	# include <iprt/file.h>
52	# include <iprt/path.h>
53	#endif
54	#include <iprt/string.h>
55	#include <iprt/cpp/ministring.h>
56
57	#ifdef LOG_GROUP
58	#undef LOG_GROUP
59	#endif
60	#define LOG_GROUP LOG_GROUP_SHARED_CLIPBOARD
61	#include <VBox/log.h>
62
63	#include "VBoxGuestR3LibInternal.h"
64
65
66	/*
67	* Function naming convention:
68	*
69	* FunctionNameRecv = Receives a host message (request).
70	* FunctionNameReply = Replies to a host message (request).
71	* FunctionNameSend = Sends a guest message to the host.
72	*/
73
74
75	/*********************************************************************************************************************************
76	* Prototypes *
77	*********************************************************************************************************************************/
78
79
80	/**
81	* Connects to the Shared Clipboard service, legacy version, do not use anymore.
82	*
83	* @returns VBox status code
84	* @param pidClient Where to put the client id on success. The client id
85	* must be passed to all the other clipboard calls.
86	*/
87	VBGLR3DECL(int) VbglR3ClipboardConnect(HGCMCLIENTID *pidClient)
88	{
89	int rc = VbglR3HGCMConnect("VBoxSharedClipboard", pidClient);
90	if (RT_FAILURE(rc))
91	{
92	if (rc == VERR_HGCM_SERVICE_NOT_FOUND)
93	LogRel(("Shared Clipboard: Unabled to connect, as host service was not found, skipping\n"));
94	else
95	LogRel(("Shared Clipboard: Unabled to connect to host service, rc=%Rrc\n", rc));
96	}
97	LogFlowFuncLeaveRC(rc);
98	return rc;
99	}
100
101
102	/**
103	* Connects to the Shared Clipboard service, extended version.
104	*
105	* @returns VBox status code.
106	* @param pCtx Command context. This will be initialized by this
107	* call.
108	* @param fGuestFeatures The guest features supported by this client,
109	* VBOX_SHCL_GF_0_XXX.
110	*/
111	VBGLR3DECL(int) VbglR3ClipboardConnectEx(PVBGLR3SHCLCMDCTX pCtx, uint64_t fGuestFeatures)
112	{
113	/*
114	* Intialize the context structure.
115	*/
116	pCtx->idClient = 0;
117	pCtx->fGuestFeatures = fGuestFeatures;
118	pCtx->fHostFeatures = 0;
119	pCtx->fUseLegacyProtocol = true;
120	pCtx->idContext = 0;
121
122	#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS
123	/* Init callback table. */
124	RT_ZERO(pCtx->Transfers.Callbacks);
125	/* Indicate that this guest supports Shared Clipboard file transfers. */
126	pCtx->fGuestFeatures \|= VBOX_SHCL_GF_0_TRANSFERS;
127	# ifdef RT_OS_WINDOWS
128	/* Indicate that on Windows guest OSes we have our own IDataObject implementation which
129	* integrates nicely into the guest's Windows Explorer showing / handling the Shared Clipboard file transfers. */
130	pCtx->fGuestFeatures \|= VBOX_SHCL_GF_0_TRANSFERS_FRONTEND;
131	# endif
132	pCtx->Transfers.cbChunkSize = VBOX_SHCL_DEFAULT_CHUNK_SIZE; /** @todo Make this configurable. */
133	pCtx->Transfers.cbMaxChunkSize = VBOX_SHCL_MAX_CHUNK_SIZE; /** @todo Ditto. */
134	#endif /* VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS */
135
136	/*
137	* First step is connecting to the HGCM service.
138	*/
139	int rc = VbglR3ClipboardConnect(&pCtx->idClient);
140	if (RT_SUCCESS(rc))
141	{
142	/*
143	* Next is reporting our features. If this fails, assume older host.
144	*/
145	rc = VbglR3ClipboardReportFeatures(pCtx->idClient, pCtx->fGuestFeatures, &pCtx->fHostFeatures);
146	if (RT_SUCCESS(rc))
147	{
148	LogRel2(("Shared Clipboard: Guest features: %#RX64 - Host features: %#RX64\n",
149	pCtx->fGuestFeatures, pCtx->fHostFeatures));
150
151	if ( (pCtx->fHostFeatures & VBOX_SHCL_HF_0_CONTEXT_ID)
152	&& (pCtx->fGuestFeatures & VBOX_SHCL_GF_0_CONTEXT_ID) )
153	{
154	pCtx->fUseLegacyProtocol = false;
155
156	#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS
157	if ( (pCtx->fHostFeatures & VBOX_SHCL_HF_0_TRANSFERS)
158	&& (pCtx->fGuestFeatures & VBOX_SHCL_GF_0_TRANSFERS) )
159	{
160	VBoxShClParmNegotiateChunkSize MsgChunkSize;
161	do
162	{
163	VBGL_HGCM_HDR_INIT(&MsgChunkSize.hdr, pCtx->idClient, VBOX_SHCL_GUEST_FN_NEGOTIATE_CHUNK_SIZE,
164	VBOX_SHCL_CPARMS_NEGOTIATE_CHUNK_SIZE);
165	MsgChunkSize.cb32MaxChunkSize.SetUInt32(pCtx->Transfers.cbMaxChunkSize);
166	MsgChunkSize.cb32ChunkSize.SetUInt32(0); /* If set to 0, let the host choose. */
167	rc = VbglR3HGCMCall(&MsgChunkSize.hdr, sizeof(MsgChunkSize));
168	} while (rc == VERR_INTERRUPTED);
169	if (RT_SUCCESS(rc))
170	{
171	Assert(MsgChunkSize.cb32ChunkSize.type == VMMDevHGCMParmType_32bit);
172	pCtx->Transfers.cbChunkSize = RT_MIN(MsgChunkSize.cb32ChunkSize.u.value32, pCtx->Transfers.cbChunkSize);
173	Assert(MsgChunkSize.cb32MaxChunkSize.type == VMMDevHGCMParmType_32bit);
174	pCtx->Transfers.cbMaxChunkSize = RT_MIN(MsgChunkSize.cb32MaxChunkSize.u.value32, pCtx->Transfers.cbMaxChunkSize);
175
176	LogRel2(("Shared Clipboard: Using chunk size %RU32 (maximum is %RU32)\n",
177	pCtx->Transfers.cbChunkSize, pCtx->Transfers.cbMaxChunkSize));
178	}
179	}
180	else
181	{
182	if (!(pCtx->fHostFeatures & VBOX_SHCL_HF_0_TRANSFERS))
183	LogRel(("Shared Clipboard: Host does not support transfers\n"));
184	}
185	#endif /* VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS */
186	}
187	else
188	{
189	if (!(pCtx->fHostFeatures & VBOX_SHCL_HF_0_CONTEXT_ID))
190	LogRel(("Shared Clipboard: Host does not support context IDs, using legacy protocol\n"));
191
192	pCtx->fUseLegacyProtocol = true;
193	}
194	}
195	else
196	{
197	AssertLogRelMsg(rc == VERR_NOT_SUPPORTED \|\| rc == VERR_NOT_IMPLEMENTED,
198	("Reporting features failed: %Rrc\n", rc));
199	pCtx->fUseLegacyProtocol = true;
200	}
201	}
202
203	LogFlowFuncLeaveRC(rc);
204	return rc;
205	}
206
207
208	/**
209	* Reports features to the host and retrieve host feature set.
210	*
211	* @returns VBox status code.
212	* @param idClient The client ID returned by VbglR3ClipboardConnect().
213	* @param fGuestFeatures Features to report, VBOX_SHCL_GF_XXX.
214	* @param pfHostFeatures Where to store the features VBOX_SHCL_HF_XXX.
215	*/
216	VBGLR3DECL(int) VbglR3ClipboardReportFeatures(uint32_t idClient, uint64_t fGuestFeatures, uint64_t *pfHostFeatures)
217	{
218	int rc;
219	do
220	{
221	struct
222	{
223	VBGLIOCHGCMCALL Hdr;
224	HGCMFunctionParameter f64Features0;
225	HGCMFunctionParameter f64Features1;
226	} Msg;
227	VBGL_HGCM_HDR_INIT(&Msg.Hdr, idClient, VBOX_SHCL_GUEST_FN_REPORT_FEATURES, 2);
228	VbglHGCMParmUInt64Set(&Msg.f64Features0, fGuestFeatures);
229	VbglHGCMParmUInt64Set(&Msg.f64Features1, VBOX_SHCL_GF_1_MUST_BE_ONE);
230
231	rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
232	if (RT_SUCCESS(rc))
233	{
234	Assert(Msg.f64Features0.type == VMMDevHGCMParmType_64bit);
235	Assert(Msg.f64Features1.type == VMMDevHGCMParmType_64bit);
236	if (Msg.f64Features1.u.value64 & VBOX_SHCL_GF_1_MUST_BE_ONE)
237	rc = VERR_NOT_SUPPORTED;
238	else if (pfHostFeatures)
239	*pfHostFeatures = Msg.f64Features0.u.value64;
240	break;
241	}
242	} while (rc == VERR_INTERRUPTED);
243	return rc;
244
245	}
246
247
248	/**
249	* Disconnects from the Shared Clipboard service, legacy version, do not use anymore.
250	*
251	* @returns VBox status code.
252	* @param idClient The client id returned by VbglR3ClipboardConnect().
253	*/
254	VBGLR3DECL(int) VbglR3ClipboardDisconnect(HGCMCLIENTID idClient)
255	{
256	return VbglR3HGCMDisconnect(idClient);
257	}
258
259
260	/**
261	* Disconnects from the Shared Clipboard service, extended version.
262	*
263	* @returns VBox status code.
264	* @param pCtx Shared Clipboard command context to use for the connection.
265	*/
266	VBGLR3DECL(int) VbglR3ClipboardDisconnectEx(PVBGLR3SHCLCMDCTX pCtx)
267	{
268	int rc = VbglR3ClipboardDisconnect(pCtx->idClient);
269	if (RT_SUCCESS(rc))
270	{
271	pCtx->idClient = 0;
272	}
273
274	LogFlowFuncLeaveRC(rc);
275	return rc;
276	}
277
278
279	/**
280	* Receives reported formats from the host.
281	*
282	* @returns VBox status code.
283	* @param pCtx Shared Clipboard command context to use for the
284	* connection.
285	* @param pfFormats Where to store the received formats from the host.
286	*/
287	static int vbglR3ClipboardFormatsReportRecv(PVBGLR3SHCLCMDCTX pCtx, PSHCLFORMATS pfFormats)
288	{
289	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
290	AssertPtrReturn(pfFormats, VERR_INVALID_POINTER);
291
292	*pfFormats = 0;
293
294	struct
295	{
296	VBGLIOCHGCMCALL Hdr;
297	HGCMFunctionParameter id64Context;
298	HGCMFunctionParameter f32Formats;
299	} Msg;
300
301	VBGL_HGCM_HDR_INIT(&Msg.Hdr, pCtx->idClient, VBOX_SHCL_GUEST_FN_MSG_GET, 2);
302	Msg.id64Context.SetUInt32(VBOX_SHCL_HOST_MSG_FORMATS_REPORT);
303	Msg.f32Formats.SetUInt32(0);
304
305	int rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
306	if (RT_SUCCESS(rc))
307	{
308	rc = Msg.f32Formats.GetUInt32(pfFormats);
309	AssertRC(rc);
310	}
311
312	LogFlowFuncLeaveRC(rc);
313	return rc;
314	}
315
316
317	/**
318	* Fetches a VBOX_SHCL_HOST_MSG_READ_DATA_CID message.
319	*
320	* @returns VBox status code.
321	* @param pCtx Shared Clipboard command context to use for the connection.
322	* @param pfFormat Where to return the requested format.
323	*/
324	static int vbglR3ClipboardFetchReadDataCid(PVBGLR3SHCLCMDCTX pCtx, PSHCLFORMAT pfFormat)
325	{
326	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
327	AssertPtrReturn(pfFormat, VERR_INVALID_POINTER);
328
329	struct
330	{
331	VBGLIOCHGCMCALL Hdr;
332	HGCMFunctionParameter id64Context;
333	HGCMFunctionParameter f32Format;
334	} Msg;
335
336	VBGL_HGCM_HDR_INIT(&Msg.Hdr, pCtx->idClient, VBOX_SHCL_GUEST_FN_MSG_GET, 2);
337	Msg.id64Context.SetUInt64(VBOX_SHCL_HOST_MSG_READ_DATA_CID);
338	Msg.f32Format.SetUInt32(0);
339
340	int rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
341	if (RT_SUCCESS(rc))
342	{
343	rc = Msg.id64Context.GetUInt64(&pCtx->idContext);
344	AssertRC(rc);
345	int rc2 = Msg.f32Format.GetUInt32(pfFormat);
346	AssertRCStmt(rc2, rc = rc2);
347	}
348
349	LogFlowFuncLeaveRC(rc);
350	return rc;
351	}
352
353
354	/**
355	* Fetches a VBOX_SHCL_HOST_MSG_READ_DATA message.
356	*
357	* @returns VBox status code.
358	* @param pCtx Shared Clipboard command context to use for the connection.
359	* @param pfFormat Where to return the requested format.
360	*/
361	static int vbglR3ClipboardFetchReadData(PVBGLR3SHCLCMDCTX pCtx, PSHCLFORMAT pfFormat)
362	{
363	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
364	AssertPtrReturn(pfFormat, VERR_INVALID_POINTER);
365
366	struct
367	{
368	VBGLIOCHGCMCALL Hdr;
369	HGCMFunctionParameter id32Msg;
370	HGCMFunctionParameter f32Format;
371	} Msg;
372
373	VBGL_HGCM_HDR_INIT(&Msg.Hdr, pCtx->idClient, VBOX_SHCL_GUEST_FN_MSG_GET, 2);
374	Msg.id32Msg.SetUInt32(VBOX_SHCL_HOST_MSG_READ_DATA);
375	Msg.f32Format.SetUInt32(0);
376
377	int rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
378	if (RT_SUCCESS(rc))
379	{
380	rc = Msg.f32Format.GetUInt32(pfFormat);
381	AssertRC(rc);
382	}
383
384	LogFlowFuncLeaveRC(rc);
385	return rc;
386	}
387
388
389	/**
390	* Get a host message, legacy version (which does not have VBOX_SHCL_GUEST_FN_MSG_GET). Do not use anymore.
391	*
392	* Note: This is the old message which still is being used for the non-URI Shared Clipboard transfers,
393	* to not break compatibility with older additions / VBox versions.
394	*
395	* This will block until a message becomes available.
396	*
397	* @returns VBox status code.
398	* @param idClient The client id returned by VbglR3ClipboardConnect().
399	* @param pidMsg Where to store the message id.
400	* @param pfFormats Where to store the format(s) the message applies to.
401	*/
402	VBGLR3DECL(int) VbglR3ClipboardGetHostMsgOld(HGCMCLIENTID idClient, uint32_t pidMsg, uint32_t pfFormats)
403	{
404	VBoxShClGetHostMsgOld Msg;
405
406	VBGL_HGCM_HDR_INIT(&Msg.hdr, idClient, VBOX_SHCL_GUEST_FN_MSG_OLD_GET_WAIT, VBOX_SHCL_CPARMS_GET_HOST_MSG_OLD);
407	VbglHGCMParmUInt32Set(&Msg.msg, 0);
408	VbglHGCMParmUInt32Set(&Msg.formats, 0);
409
410	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
411	if (RT_SUCCESS(rc))
412	{
413	int rc2 = VbglHGCMParmUInt32Get(&Msg.msg, pidMsg);
414	if (RT_SUCCESS(rc))
415	{
416	rc2 = VbglHGCMParmUInt32Get(&Msg.formats, pfFormats);
417	if (RT_SUCCESS(rc2))
418	return rc;
419	}
420	rc = rc2;
421	}
422	*pidMsg = UINT32_MAX - 1;
423	*pfFormats = UINT32_MAX;
424	return rc;
425	}
426
427
428	/**
429	* Reads data from the host clipboard.
430	*
431	* @returns VBox status code.
432	* @retval VINF_BUFFER_OVERFLOW If there is more data available than the caller provided buffer space for.
433	*
434	* @param idClient The client id returned by VbglR3ClipboardConnect().
435	* @param fFormat The format we're requesting the data in.
436	* @param pvData Where to store the data.
437	* @param cbData The size of the buffer pointed to by \a pvData.
438	* This also indicates the maximum size to read.
439	* @param pcbRead The actual size of the host clipboard data. May be larger than \a cbData.
440	*/
441	VBGLR3DECL(int) VbglR3ClipboardReadData(HGCMCLIENTID idClient, uint32_t fFormat, void *pvData, uint32_t cbData,
442	uint32_t *pcbRead)
443	{
444	LogFlowFunc(("fFormat=%#x, pvData=%p, cbData=%RU32\n", fFormat, pvData, cbData));
445
446	struct
447	{
448	VBGLIOCHGCMCALL Hdr;
449	VBoxShClParmDataRead Parms;
450	} Msg;
451
452	VBGL_HGCM_HDR_INIT(&Msg.Hdr, idClient, VBOX_SHCL_GUEST_FN_DATA_READ, VBOX_SHCL_CPARMS_DATA_READ);
453	VbglHGCMParmUInt32Set(&Msg.Parms.f32Format, fFormat);
454	VbglHGCMParmPtrSet( &Msg.Parms.pData, pvData, cbData);
455	VbglHGCMParmUInt32Set(&Msg.Parms.cb32Needed, 0);
456
457	int rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
458	if (RT_SUCCESS(rc))
459	{
460	uint32_t cbRead;
461	rc = VbglHGCMParmUInt32Get(&Msg.Parms.cb32Needed, &cbRead);
462	if (RT_SUCCESS(rc))
463	{
464	LogFlowFunc(("cbRead=%RU32\n", cbRead));
465
466	if (cbRead > cbData)
467	rc = VINF_BUFFER_OVERFLOW;
468
469	*pcbRead = cbRead;
470	}
471	}
472
473	LogFlowFuncLeaveRC(rc);
474	return rc;
475	}
476
477
478	/**
479	* Reads clipboard data from the host clipboard.
480	*
481	* @returns VBox status code.
482	* @retval VINF_BUFFER_OVERFLOW If there is more data available than the caller provided buffer space for.
483	*
484	* @param pCtx The command context returned by VbglR3ClipboardConnectEx().
485	* @param uFormat Clipboard format of clipboard data to be read.
486	* @param pvData Buffer where to store the read data.
487	* @param cbData Size (in bytes) of data buffer where to store the read data.
488	* @param pcbRead The actual size of the host clipboard data.
489	*/
490	VBGLR3DECL(int) VbglR3ClipboardReadDataEx(PVBGLR3SHCLCMDCTX pCtx,
491	SHCLFORMAT uFormat, void pvData, uint32_t cbData, uint32_t pcbRead)
492	{
493	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
494	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
495	return VbglR3ClipboardReadData(pCtx->idClient, uFormat, pvData, cbData, pcbRead);
496	}
497
498
499	/**
500	* Query the host features.
501	*
502	* @returns VBox status code.
503	* @param idClient The client ID returned by VbglR3ClipboardConnect().
504	* @param pfHostFeatures Where to store the host feature, VBOX_SHCL_HF_XXX.
505	*/
506	VBGLR3DECL(int) VbglR3ClipboardQueryFeatures(uint32_t idClient, uint64_t *pfHostFeatures)
507	{
508	int rc;
509	do
510	{
511	struct
512	{
513	VBGLIOCHGCMCALL Hdr;
514	HGCMFunctionParameter f64Features0;
515	HGCMFunctionParameter f64Features1;
516	} Msg;
517	VBGL_HGCM_HDR_INIT(&Msg.Hdr, idClient, VBOX_SHCL_GUEST_FN_QUERY_FEATURES, 2);
518	VbglHGCMParmUInt64Set(&Msg.f64Features0, 0);
519	VbglHGCMParmUInt64Set(&Msg.f64Features1, RT_BIT_64(63));
520
521	rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
522	if (RT_SUCCESS(rc))
523	{
524	Assert(Msg.f64Features0.type == VMMDevHGCMParmType_64bit);
525	Assert(Msg.f64Features1.type == VMMDevHGCMParmType_64bit);
526	if (Msg.f64Features1.u.value64 & RT_BIT_64(63))
527	rc = VERR_NOT_SUPPORTED;
528	else if (pfHostFeatures)
529	*pfHostFeatures = Msg.f64Features0.u.value64;
530	break;
531	}
532	} while (rc == VERR_INTERRUPTED);
533	return rc;
534
535	}
536
537	/**
538	* Peeks at the next host message, extended version.
539	*
540	* This glosses over the difference between new (6.1) and old (1.3.2) host
541	* service versions, however it does so by abusing @a pcParameters, so don't use
542	* it directly when in legacy mode, always pass it on to
543	* VbglR3ClipboardEventGetNext() or VbglR3ClipboardEventGetNextEx().
544	*
545	* @returns VBox status code.
546	* @retval VERR_INTERRUPTED if interrupted. Does the necessary cleanup, so
547	* caller just have to repeat this call.
548	* @retval VERR_VM_RESTORED if the VM has been restored (idRestoreCheck).
549	* @retval VERR_TRY_AGAIN if no new message is available.
550	*
551	* @param pCtx Shared Clipboard command context to use for the connection.
552	* @param fWait Wait for new messages to arrive if \c true, return immediately if \c false.
553	* @param pidMsg Where to store the message id.
554	* @param pcParameters Where to store the number of parameters which will
555	* be received in a second call to the host.
556	* @param pidRestoreCheck Pointer to the VbglR3GetSessionId() variable to use
557	* for the VM restore check. Optional.
558	*
559	* @note Restore check is only performed optimally with a 6.0 host.
560	*/
561	static int vbglR3ClipboardMsgPeekEx(PVBGLR3SHCLCMDCTX pCtx, bool fWait, uint32_t *pidMsg,
562	uint32_t pcParameters, uint64_t pidRestoreCheck)
563	{
564	AssertPtrReturn(pidMsg, VERR_INVALID_POINTER);
565	AssertPtrReturn(pcParameters, VERR_INVALID_POINTER);
566
567	struct
568	{
569	VBGLIOCHGCMCALL Hdr;
570	HGCMFunctionParameter idMsg; /* Doubles as restore check on input. */
571	HGCMFunctionParameter cParameters;
572	} Msg;
573	int rc;
574	if (!pCtx->fUseLegacyProtocol)
575	{
576	VBGL_HGCM_HDR_INIT(&Msg.Hdr, pCtx->idClient,
577	fWait ? VBOX_SHCL_GUEST_FN_MSG_PEEK_WAIT
578	: VBOX_SHCL_GUEST_FN_MSG_PEEK_NOWAIT, 2);
579	VbglHGCMParmUInt64Set(&Msg.idMsg, pidRestoreCheck ? *pidRestoreCheck : 0);
580	VbglHGCMParmUInt32Set(&Msg.cParameters, 0);
581	rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
582	Log4Func(("VbglR3HGCMCall -> %Rrc\n", rc));
583	if (RT_SUCCESS(rc))
584	{
585	AssertMsgReturn( Msg.idMsg.type == VMMDevHGCMParmType_64bit
586	&& Msg.cParameters.type == VMMDevHGCMParmType_32bit,
587	("msg.type=%d num_parms.type=%d\n", Msg.idMsg.type, Msg.cParameters.type),
588	VERR_INTERNAL_ERROR_3);
589
590	*pidMsg = (uint32_t)Msg.idMsg.u.value64;
591	*pcParameters = Msg.cParameters.u.value32;
592	return rc;
593	}
594
595	/*
596	* If restored, update pidRestoreCheck.
597	*/
598	if (rc == VERR_VM_RESTORED && pidRestoreCheck)
599	*pidRestoreCheck = Msg.idMsg.u.value64;
600	}
601	else
602	{
603	/*
604	* We do some crude stuff here by putting the 2nd parameter (foramts) in the parameter count,
605	* however it's supposed to be passed directly to VbglR3ClipboardEventGetNext or
606	* VbglR3ClipboardEventGetNextEx, so that's fine...
607	*/
608	rc = VbglR3ClipboardGetHostMsgOld(pCtx->idClient, pidMsg, pcParameters);
609	if (RT_SUCCESS(rc))
610	return rc;
611	}
612
613	/*
614	* If interrupted we must cancel the call so it doesn't prevent us from making another one.
615	*/
616	if (rc == VERR_INTERRUPTED)
617	{
618	VBGL_HGCM_HDR_INIT(&Msg.Hdr, pCtx->idClient, VBOX_SHCL_GUEST_FN_MSG_CANCEL, 0);
619	int rc2 = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg.Hdr));
620	AssertRC(rc2);
621	}
622
623	*pidMsg = UINT32_MAX - 1;
624	*pcParameters = UINT32_MAX - 2;
625	return rc;
626	}
627
628	/**
629	* Peeks at the next host message, waiting for one to turn up.
630	*
631	* This glosses over the difference between new (6.1) and old (1.3.2) host
632	* service versions, however it does so by abusing @a pcParameters, so don't use
633	* it directly when in legacy mode, always pass it on to
634	* VbglR3ClipboardEventGetNext() or VbglR3ClipboardEventGetNextEx().
635	*
636	* @returns VBox status code.
637	* @retval VERR_INTERRUPTED if interrupted. Does the necessary cleanup, so
638	* caller just have to repeat this call.
639	* @retval VERR_VM_RESTORED if the VM has been restored (idRestoreCheck).
640	*
641	* @param pCtx Shared Clipboard command context to use for the connection.
642	* @param pidMsg Where to store the message id.
643	* @param pcParameters Where to store the number of parameters which will
644	* be received in a second call to the host.
645	* @param pidRestoreCheck Pointer to the VbglR3GetSessionId() variable to use
646	* for the VM restore check. Optional.
647	*
648	* @note Restore check is only performed optimally with a 6.0 host.
649	*/
650	VBGLR3DECL(int) VbglR3ClipboardMsgPeekWait(PVBGLR3SHCLCMDCTX pCtx, uint32_t *pidMsg,
651	uint32_t pcParameters, uint64_t pidRestoreCheck)
652	{
653	return vbglR3ClipboardMsgPeekEx(pCtx, true /* fWait */, pidMsg, pcParameters, pidRestoreCheck);
654	}
655
656	/**
657	* Peeks at the next host message, returning immediately.
658	*
659	* This glosses over the difference between new (6.1) and old (1.3.2) host
660	* service versions, however it does so by abusing @a pcParameters, so don't use
661	* it directly when in legacy mode, always pass it on to
662	* VbglR3ClipboardEventGetNext() or VbglR3ClipboardEventGetNextEx().
663	*
664	* @returns VBox status code.
665	* @retval VERR_INTERRUPTED if interrupted. Does the necessary cleanup, so
666	* caller just have to repeat this call.
667	* @retval VERR_VM_RESTORED if the VM has been restored (idRestoreCheck).
668	* @retval VERR_TRY_AGAIN if no new message is available.
669	*
670	* @param pCtx Shared Clipboard command context to use for the connection.
671	* @param pidMsg Where to store the message id.
672	* @param pcParameters Where to store the number of parameters which will
673	* be received in a second call to the host.
674	* @param pidRestoreCheck Pointer to the VbglR3GetSessionId() variable to use
675	* for the VM restore check. Optional.
676	*
677	* @note Restore check is only performed optimally with a 6.0 host.
678	*/
679	VBGLR3DECL(int) VbglR3ClipboardMsgPeek(PVBGLR3SHCLCMDCTX pCtx, uint32_t *pidMsg,
680	uint32_t pcParameters, uint64_t pidRestoreCheck)
681	{
682	return vbglR3ClipboardMsgPeekEx(pCtx, false /* fWait */, pidMsg, pcParameters, pidRestoreCheck);
683	}
684
685	#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS
686
687	/**
688	* Reads a transfer root list header from the host.
689	*
690	* @returns VBox status code.
691	* @param pCtx Shared Clipboard command context to use for the connection.
692	* @param pRootListHdr Where to store the received root list header.
693	*/
694	static int vbglR3ClipboardTransferRootListHdrRead(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTHDR pRootListHdr)
695	{
696	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
697	AssertPtrReturn(pRootListHdr, VERR_INVALID_POINTER);
698
699	VBoxShClRootListHdrMsg Msg;
700
701	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
702	VBOX_SHCL_GUEST_FN_ROOT_LIST_HDR_READ, VBOX_SHCL_CPARMS_ROOT_LIST_HDR_READ);
703
704	Msg.ReqParms.uContext.SetUInt64(pCtx->idContext);
705	Msg.ReqParms.fRoots.SetUInt32(0);
706
707	Msg.cRoots.SetUInt64(0);
708
709	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
710	if (RT_SUCCESS(rc))
711	{
712	rc = Msg.ReqParms.fRoots.GetUInt32(&pRootListHdr->fFeatures); AssertRC(rc);
713	if (RT_SUCCESS(rc))
714	{
715	rc = Msg.cRoots.GetUInt64(&pRootListHdr->cEntries);
716	AssertRC(rc);
717
718	pRootListHdr->cbTotalSize = 0; /* Unused for the root list header. */
719	}
720	}
721	else
722	LogRel(("Shared Clipboard: Reading root list header failed: %Rrc\n", rc));
723
724	LogFlowFuncLeaveRC(rc);
725	return rc;
726	}
727
728	/**
729	* Reads a transfer root list entry from the host.
730	*
731	* @returns VBox status code.
732	* @param pCtx Shared Clipboard command context to use for the connection.
733	* @param uIndex Index of root list entry to read.
734	* @param pRootListEntry Where to store the root list entry read from the host.
735	*/
736	static int vbglR3ClipboardTransferRootListEntryRead(PVBGLR3SHCLCMDCTX pCtx, uint64_t uIndex, PSHCLLISTENTRY pRootListEntry)
737	{
738	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
739	AssertPtrReturn(pRootListEntry, VERR_INVALID_POINTER);
740
741	VBoxShClRootListEntryMsg Msg;
742
743	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
744	VBOX_SHCL_GUEST_FN_ROOT_LIST_ENTRY_READ, VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY_READ);
745
746	uint32_t const fInfo = VBOX_SHCL_INFO_F_FSOBJINFO; /* For now the only info we have. */
747
748	Msg.Parms.uContext.SetUInt64(pCtx->idContext);
749	Msg.Parms.fInfo.SetUInt32(fInfo);
750	Msg.Parms.uIndex.SetUInt64(uIndex);
751
752	char szName[SHCLLISTENTRY_MAX_NAME];
753	Msg.szName.SetPtr(szName, sizeof(szName));
754
755	void *pvInfo = NULL;
756	uint32_t cbInfo = 0;
757
758	int rc = VINF_SUCCESS;
759
760	if ((fInfo & VBOX_SHCL_INFO_F_FSOBJINFO) == VBOX_SHCL_INFO_F_FSOBJINFO)
761	{
762	cbInfo = sizeof(SHCLFSOBJINFO);
763	pvInfo = RTMemAlloc(cbInfo);
764	if (!pvInfo)
765	rc = VERR_NO_MEMORY;
766	}
767
768	if (RT_SUCCESS(rc))
769	{
770	Msg.cbInfo.SetUInt32(cbInfo);
771	Msg.pvInfo.SetPtr(pvInfo, cbInfo);
772
773	rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
774	if (RT_SUCCESS(rc))
775	{
776	uint32_t fInfoRet;
777	rc = Msg.Parms.fInfo.GetUInt32(&fInfoRet);
778	AssertRCReturn(rc, rc);
779	AssertMsgStmt((fInfoRet & VBOX_SHCL_INFO_F_FSOBJINFO) == VBOX_SHCL_INFO_F_FSOBJINFO,
780	("Host returned unknown entry info flags (%#x)\n", fInfoRet), rc = VERR_INVALID_PARAMETER);
781	if (RT_SUCCESS(rc))
782	{
783	uint32_t cbInfoRet = 0;
784	Msg.cbInfo.GetUInt32(&cbInfoRet);
785
786	AssertMsgStmt(cbInfo == cbInfoRet,
787	("Host reported cbInfo %RU32, expected %RU32\n", cbInfoRet, cbInfo), rc = VERR_INVALID_PARAMETER);
788
789	rc = ShClTransferListEntryInitEx(pRootListEntry, fInfo, szName, pvInfo, cbInfo);
790	if (RT_SUCCESS(rc))
791	{
792	pvInfo = NULL; /* Entry took ownership of pvInfo now. */
793	cbInfo = 0;
794	}
795	}
796	}
797	else
798	LogRel(("Shared Clipboard: Reading root list entry failed: %Rrc\n", rc));
799	}
800
801	RTMemFree(pvInfo);
802
803	LogFlowFuncLeaveRC(rc);
804	return rc;
805	}
806
807	/**
808	* Reads the transfer root list from the host.
809	*
810	* @returns VBox status code.
811	* @param pCtx Shared Clipboard command context to use for the connection.
812	* @param pTransfer Transfer to read root list for.
813	* Must be in INITIALIZED state.
814	*/
815	VBGLR3DECL(int) VbglR3ClipboardTransferRootListRead(PVBGLR3SHCLCMDCTX pCtx, PSHCLTRANSFER pTransfer)
816	{
817	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
818	AssertPtrReturn(pTransfer, VERR_INVALID_POINTER);
819
820	AssertMsgReturn(ShClTransferGetStatus(pTransfer) == SHCLTRANSFERSTATUS_INITIALIZED,
821	("Can't read root list -- wrong transfer status\n"), VERR_WRONG_ORDER);
822
823	SHCLLISTHDR Hdr;
824	int rc = vbglR3ClipboardTransferRootListHdrRead(pCtx, &Hdr);
825	if (RT_SUCCESS(rc))
826	{
827	LogFlowFunc(("cEntries=%RU64, cTotalSize=%RU64\n", Hdr.cEntries, Hdr.cbTotalSize));
828
829	if (!Hdr.cEntries) /* Should never happen (tm). */
830	{
831	#ifdef DEBUG_andy
832	AssertFailed();
833	#endif
834	LogRel(("Shared Clipboard: Warning: Transfer %RU32 has no entries\n", ShClTransferGetID(pTransfer)));
835	}
836
837	for (uint64_t i = 0; i < Hdr.cEntries; i++)
838	{
839	PSHCLLISTENTRY pEntry = NULL;
840	rc = ShClTransferListEntryAlloc(&pEntry);
841	if (RT_SUCCESS(rc))
842	{
843	rc = vbglR3ClipboardTransferRootListEntryRead(pCtx, i, pEntry);
844	if (RT_SUCCESS(rc))
845	rc = ShClTransferListAddEntry(&pTransfer->lstRoots, pEntry, true /* fAppend */);
846	}
847
848	if (RT_FAILURE(rc))
849	{
850	ShClTransferListEntryFree(pEntry);
851	break;
852	}
853	}
854	}
855	else
856	LogRel(("Shared Clipboard: Reading root list for transfer %RU32 failed: %Rrc\n", ShClTransferGetID(pTransfer), rc));
857
858	LogFlowFuncLeaveRC(rc);
859	return rc;
860	}
861
862	/**
863	* Receives a transfer status from the host.
864	*
865	* @returns VBox status code.
866	* @param pCtx Shared Clipboard command context to use for the connection.
867	* @param pEnmDir Where to store the transfer direction for the reported transfer.
868	* @param pReport Where to store the transfer (status) report.
869	*/
870	VBGLR3DECL(int) VbglR3ClipboarTransferStatusRecv(PVBGLR3SHCLCMDCTX pCtx,
871	PSHCLTRANSFERDIR pEnmDir, PSHCLTRANSFERREPORT pReport)
872	{
873	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
874	AssertPtrReturn(pReport, VERR_INVALID_POINTER);
875	AssertPtrReturn(pEnmDir, VERR_INVALID_POINTER);
876
877	VBoxShClTransferStatusMsg Msg;
878	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
879	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_TRANSFER_STATUS);
880
881	Msg.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_STATUS);
882	Msg.enmDir.SetUInt32(0);
883	Msg.enmStatus.SetUInt32(0);
884	Msg.rc.SetUInt32(0);
885	Msg.fFlags.SetUInt32(0);
886
887	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
888	if (RT_SUCCESS(rc))
889	{
890	rc = Msg.uContext.GetUInt64(&pCtx->idContext); AssertRC(rc);
891	if (RT_SUCCESS(rc))
892	{
893	rc = Msg.enmDir.GetUInt32((uint32_t *)pEnmDir);
894	AssertRC(rc);
895	}
896	if (RT_SUCCESS(rc))
897	{
898	rc = Msg.enmStatus.GetUInt32(&pReport->uStatus);
899	AssertRC(rc);
900	}
901	if (RT_SUCCESS(rc))
902	{
903	rc = Msg.rc.GetUInt32((uint32_t *)&pReport->rc);
904	AssertRC(rc);
905	}
906	if (RT_SUCCESS(rc))
907	{
908	rc = Msg.fFlags.GetUInt32(&pReport->fFlags);
909	AssertRC(rc);
910	}
911	}
912
913	LogFlowFuncLeaveRC(rc);
914	return rc;
915	}
916
917	/**
918	* Replies to a transfer report from the host, extended version.
919	*
920	* @returns VBox status code.
921	* @param pCtx Shared Clipboard command context to use for the connection.
922	* @param uCID Context ID to use.
923	* The transfer ID is part of this.
924	* @param uStatus Tranfer status to reply.
925	* @param rcTransfer Result code (rc) to reply.
926	*/
927	static int vbglR3ClipboardTransferStatusReplyEx(PVBGLR3SHCLCMDCTX pCtx, uint64_t uCID,
928	SHCLTRANSFERSTATUS uStatus, int rcTransfer)
929	{
930	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
931
932	VBoxShClReplyMsg Msg;
933	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
934	VBOX_SHCL_GUEST_FN_REPLY, VBOX_SHCL_CPARMS_REPLY_MIN + 1);
935
936	Msg.uContext.SetUInt64(uCID);
937	Msg.enmType.SetUInt32(VBOX_SHCL_TX_REPLYMSGTYPE_TRANSFER_STATUS);
938	Msg.rc.SetUInt32((uint32_t )rcTransfer); /* int vs. uint32_t */
939	Msg.pvPayload.SetPtr(NULL, 0);
940
941	Msg.u.TransferStatus.enmStatus.SetUInt32((uint32_t)uStatus);
942
943	LogFlowFunc(("%s\n", ShClTransferStatusToStr(uStatus)));
944
945	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
946
947	LogFlowFuncLeaveRC(rc);
948	return rc;
949	}
950
951	/**
952	* Replies to a transfer report from the host.
953	*
954	* @returns VBox status code.
955	* @param pCtx Shared Clipboard command context to use for the connection.
956	* @param pTransfer Transfer of report to reply to.
957	* @param uStatus Tranfer status to reply.
958	* @param rcTransfer Result code (rc) to reply.
959	*/
960	VBGLR3DECL(int) VbglR3ClipboardTransferStatusReply(PVBGLR3SHCLCMDCTX pCtx, PSHCLTRANSFER pTransfer,
961	SHCLTRANSFERSTATUS uStatus, int rcTransfer)
962	{
963	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
964	AssertPtrReturn(pTransfer, VERR_INVALID_POINTER);
965
966	int rc = vbglR3ClipboardTransferStatusReplyEx(pCtx, pCtx->idContext, uStatus, rcTransfer);
967
968	LogFlowFuncLeaveRC(rc);
969	return rc;
970	}
971
972	/**
973	* Receives a host request to read a transfer root list header from the guest.
974	*
975	* @returns VBox status code.
976	* @param pCtx Shared Clipboard command context to use for the connection.
977	* @param pfRoots Where to store the root list header flags to use, requested by the host.
978	*/
979	VBGLR3DECL(int) VbglR3ClipboardTransferRootListHdrReadReq(PVBGLR3SHCLCMDCTX pCtx, uint32_t *pfRoots)
980	{
981	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
982	AssertPtrReturn(pfRoots, VERR_INVALID_POINTER);
983
984	VBoxShClRootListReadReqMsg Msg;
985	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
986	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_ROOT_LIST_HDR_READ_REQ);
987
988	Msg.ReqParms.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_HDR_READ);
989	Msg.ReqParms.fRoots.SetUInt32(0);
990
991	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
992	if (RT_SUCCESS(rc))
993	{
994	rc = Msg.ReqParms.uContext.GetUInt64(&pCtx->idContext); AssertRC(rc);
995	if (RT_SUCCESS(rc))
996	{
997	rc = Msg.ReqParms.fRoots.GetUInt32(pfRoots);
998	AssertRC(rc);
999	}
1000	}
1001
1002	LogFlowFuncLeaveRC(rc);
1003	return rc;
1004	}
1005
1006	/**
1007	* Replies to a transfer root list header request.
1008	*
1009	* @returns VBox status code.
1010	* @param pCtx Shared Clipboard command context to use for the connection.
1011	* @param pRootListHdr Root lsit header to reply to the host.
1012	*/
1013	VBGLR3DECL(int) VbglR3ClipboardTransferRootListHdrReadReply(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTHDR pRootListHdr)
1014	{
1015	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1016	AssertPtrReturn(pRootListHdr, VERR_INVALID_POINTER);
1017
1018	VBoxShClRootListHdrMsg Msg;
1019	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1020	VBOX_SHCL_GUEST_FN_ROOT_LIST_HDR_WRITE, VBOX_SHCL_CPARMS_ROOT_LIST_HDR_WRITE);
1021
1022	Msg.ReqParms.uContext.SetUInt64(pCtx->idContext);
1023	Msg.ReqParms.fRoots.SetUInt32(pRootListHdr->fFeatures);
1024
1025	Msg.cRoots.SetUInt64(pRootListHdr->cEntries);
1026
1027	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1028
1029	LogFlowFuncLeaveRC(rc);
1030	return rc;
1031	}
1032
1033	/**
1034	* Receives a host request to read a transfer root list entry from the guest.
1035	*
1036	* @returns VBox status code.
1037	* @param pCtx Shared Clipboard command context to use for the connection.
1038	* @param puIndex Where to return the index of the root list entry the host wants to read.
1039	* @param pfInfo Where to return the read flags the host wants to use.
1040	*/
1041	VBGLR3DECL(int) VbglR3ClipboardTransferRootListEntryReadReq(PVBGLR3SHCLCMDCTX pCtx, uint64_t puIndex, uint32_t pfInfo)
1042	{
1043	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1044	AssertPtrReturn(puIndex, VERR_INVALID_POINTER);
1045	AssertPtrReturn(pfInfo, VERR_INVALID_POINTER);
1046
1047	VBoxShClRootListEntryReadReqMsg Msg;
1048	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1049	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY_READ_REQ);
1050
1051	Msg.Parms.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_ENTRY_READ);
1052	Msg.Parms.fInfo.SetUInt32(0);
1053	Msg.Parms.uIndex.SetUInt64(0);
1054
1055	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1056	if (RT_SUCCESS(rc))
1057	{
1058	rc = Msg.Parms.uContext.GetUInt64(&pCtx->idContext); AssertRC(rc);
1059	if (RT_SUCCESS(rc))
1060	{
1061	rc = Msg.Parms.fInfo.GetUInt32(pfInfo);
1062	AssertRC(rc);
1063	}
1064	if (RT_SUCCESS(rc))
1065	{
1066	rc = Msg.Parms.uIndex.GetUInt64(puIndex);
1067	AssertRC(rc);
1068	}
1069	}
1070
1071	LogFlowFuncLeaveRC(rc);
1072	return rc;
1073	}
1074
1075	/**
1076	* Replies to a transfer root list entry read request from the host.
1077	*
1078	* @returns VBox status code.
1079	* @param pCtx Shared Clipboard command context to use for the connection.
1080	* @param uIndex Index of root list entry to reply.
1081	* @param pEntry Actual root list entry to reply.
1082	*/
1083	VBGLR3DECL(int) VbglR3ClipboardTransferRootListEntryReadReply(PVBGLR3SHCLCMDCTX pCtx, uint32_t uIndex, PSHCLLISTENTRY pEntry)
1084	{
1085	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1086	AssertPtrReturn(pEntry, VERR_INVALID_POINTER);
1087
1088	VBoxShClRootListEntryMsg Msg;
1089	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1090	VBOX_SHCL_GUEST_FN_ROOT_LIST_ENTRY_WRITE, VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY_WRITE);
1091
1092	Msg.Parms.uContext.SetUInt64(pCtx->idContext);
1093	Msg.Parms.fInfo.SetUInt32(pEntry->fInfo);
1094	Msg.Parms.uIndex.SetUInt64(uIndex);
1095
1096	Msg.szName.SetPtr(pEntry->pszName, pEntry->cbName);
1097	Msg.cbInfo.SetUInt32(pEntry->cbInfo);
1098	Msg.pvInfo.SetPtr(pEntry->pvInfo, pEntry->cbInfo);
1099
1100	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1101
1102	LogFlowFuncLeaveRC(rc);
1103	return rc;
1104	}
1105
1106	/**
1107	* Sends a request to open a transfer list handle to the host.
1108	*
1109	* @returns VBox status code.
1110	* @param pCtx Shared Clipboard command context to use for the connection.
1111	* @param pOpenParms List open parameters to use for the open request.
1112	* @param phList Where to return the list handle received from the host.
1113	*/
1114	VBGLR3DECL(int) VbglR3ClipboardTransferListOpenSend(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTOPENPARMS pOpenParms,
1115	PSHCLLISTHANDLE phList)
1116	{
1117	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1118	AssertPtrReturn(pOpenParms, VERR_INVALID_POINTER);
1119	AssertPtrReturn(phList, VERR_INVALID_POINTER);
1120
1121	VBoxShClListOpenMsg Msg;
1122	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1123	VBOX_SHCL_GUEST_FN_LIST_OPEN, VBOX_SHCL_CPARMS_LIST_OPEN);
1124
1125	Msg.uContext.SetUInt64(pCtx->idContext);
1126	Msg.fList.SetUInt32(0);
1127	Msg.pvFilter.SetPtr(pOpenParms->pszFilter, pOpenParms->cbFilter);
1128	Msg.pvPath.SetPtr(pOpenParms->pszPath, pOpenParms->cbPath);
1129	Msg.uHandle.SetUInt64(0);
1130
1131	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1132	if (RT_SUCCESS(rc))
1133	{
1134	rc = Msg.uHandle.GetUInt64(phList); AssertRC(rc);
1135	}
1136
1137	LogFlowFuncLeaveRC(rc);
1138	return rc;
1139	}
1140
1141	/**
1142	* Receives a host request to open a transfer list handle on the guest.
1143	*
1144	* @returns VBox status code.
1145	* @param pCtx Shared Clipboard command context to use for the connection.
1146	* @param pOpenParms Where to store the open parameters the host wants to use for opening the list handle.
1147	*/
1148	VBGLR3DECL(int) VbglR3ClipboardTransferListOpenRecv(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTOPENPARMS pOpenParms)
1149	{
1150	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1151	AssertPtrReturn(pOpenParms, VERR_INVALID_POINTER);
1152
1153	VBoxShClListOpenMsg Msg;
1154	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1155	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_LIST_OPEN);
1156
1157	Msg.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_LIST_OPEN);
1158	Msg.fList.SetUInt32(0);
1159	Msg.pvPath.SetPtr(pOpenParms->pszPath, pOpenParms->cbPath);
1160	Msg.pvFilter.SetPtr(pOpenParms->pszFilter, pOpenParms->cbFilter);
1161	Msg.uHandle.SetUInt64(0);
1162
1163	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1164	if (RT_SUCCESS(rc))
1165	{
1166	rc = Msg.uContext.GetUInt64(&pCtx->idContext);
1167	if (RT_SUCCESS(rc))
1168	rc = Msg.fList.GetUInt32(&pOpenParms->fList);
1169	}
1170
1171	LogFlowFuncLeaveRC(rc);
1172	return rc;
1173	}
1174
1175	/**
1176	* Replies to a transfer list open request from the host.
1177	*
1178	* @returns VBox status code.
1179	* @param pCtx Shared Clipboard command context to use for the connection.
1180	* @param rcReply Return code to reply to the host.
1181	* @param hList List handle of (guest) list to reply to the host.
1182	*/
1183	VBGLR3DECL(int) VbglR3ClipboardTransferListOpenReply(PVBGLR3SHCLCMDCTX pCtx, int rcReply, SHCLLISTHANDLE hList)
1184	{
1185	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1186
1187	VBoxShClReplyMsg Msg;
1188	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1189	VBOX_SHCL_GUEST_FN_REPLY, VBOX_SHCL_CPARMS_REPLY_MIN + 1);
1190
1191	Msg.uContext.SetUInt64(pCtx->idContext);
1192	Msg.enmType.SetUInt32(VBOX_SHCL_TX_REPLYMSGTYPE_LIST_OPEN);
1193	Msg.rc.SetUInt32((uint32_t)rcReply); /** int vs. uint32_t */
1194	Msg.pvPayload.SetPtr(NULL, 0);
1195
1196	Msg.u.ListOpen.uHandle.SetUInt64(hList);
1197
1198	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1199
1200	LogFlowFuncLeaveRC(rc);
1201	return rc;
1202	}
1203
1204	/**
1205	* Receives a host request to close a list handle on the guest.
1206	*
1207	* @returns VBox status code.
1208	* @param pCtx Shared Clipboard command context to use for the connection.
1209	* @param phList Where to store the list handle to close, received from the host.
1210	*/
1211	VBGLR3DECL(int) VbglR3ClipboardTransferListCloseRecv(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTHANDLE phList)
1212	{
1213	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1214	AssertPtrReturn(phList, VERR_INVALID_POINTER);
1215
1216	VBoxShClListCloseMsg Msg;
1217	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1218	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_LIST_CLOSE);
1219
1220	Msg.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_LIST_CLOSE);
1221	Msg.uHandle.SetUInt64(0);
1222
1223	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1224	if (RT_SUCCESS(rc))
1225	{
1226	rc = Msg.uContext.GetUInt64(&pCtx->idContext);
1227	if (RT_SUCCESS(rc))
1228	{
1229	rc = Msg.uHandle.GetUInt64(phList);
1230	AssertRC(rc);
1231	}
1232	}
1233
1234	LogFlowFuncLeaveRC(rc);
1235	return rc;
1236	}
1237
1238	/**
1239	* Replies to a transfer list handle close request from the host.
1240	*
1241	* @returns VBox status code.
1242	* @param pCtx Shared Clipboard command context to use for the connection.
1243	* @param rcReply Return code to reply to the host.
1244	* @param hList List handle the send the close reply for.
1245	*/
1246	VBGLR3DECL(int) VbglR3ClipboardTransferListCloseReply(PVBGLR3SHCLCMDCTX pCtx, int rcReply, SHCLLISTHANDLE hList)
1247	{
1248	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1249
1250	VBoxShClReplyMsg Msg;
1251	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1252	VBOX_SHCL_GUEST_FN_REPLY, VBOX_SHCL_CPARMS_REPLY_MIN + 1);
1253
1254	Msg.uContext.SetUInt64(pCtx->idContext);
1255	Msg.enmType.SetUInt32(VBOX_SHCL_TX_REPLYMSGTYPE_LIST_CLOSE);
1256	Msg.rc.SetUInt32((uint32_t)rcReply); /** int vs. uint32_t */
1257	Msg.pvPayload.SetPtr(NULL, 0);
1258
1259	Msg.u.ListOpen.uHandle.SetUInt64(hList);
1260
1261	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1262
1263	LogFlowFuncLeaveRC(rc);
1264	return rc;
1265	}
1266
1267	/**
1268	* Sends a request to close a transfer list handle to the host.
1269	*
1270	* @returns VBox status code.
1271	* @param pCtx Shared Clipboard command context to use for the connection.
1272	* @param hList List handle to request for closing on the host.
1273	*/
1274	VBGLR3DECL(int) VbglR3ClipboardTransferListCloseSend(PVBGLR3SHCLCMDCTX pCtx, SHCLLISTHANDLE hList)
1275	{
1276	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1277
1278	VBoxShClListCloseMsg Msg;
1279	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1280	VBOX_SHCL_GUEST_FN_LIST_CLOSE, VBOX_SHCL_CPARMS_LIST_CLOSE);
1281
1282	Msg.uContext.SetUInt64(pCtx->idContext);
1283	Msg.uHandle.SetUInt64(hList);
1284
1285	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1286
1287	LogFlowFuncLeaveRC(rc);
1288	return rc;
1289	}
1290
1291	/**
1292	* Sends a request to read a transfer list header to the host.
1293	*
1294	* @returns VBox status code.
1295	* @param pCtx Shared Clipboard command context to use for the connection.
1296	* @param hList List handle to read list header for.
1297	* @param fFlags List header read flags to use.
1298	* @param pListHdr Where to return the list header received from the host.
1299	*/
1300	VBGLR3DECL(int) VbglR3ClipboardTransferListHdrRead(PVBGLR3SHCLCMDCTX pCtx, SHCLLISTHANDLE hList, uint32_t fFlags,
1301	PSHCLLISTHDR pListHdr)
1302	{
1303	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1304	AssertPtrReturn(pListHdr, VERR_INVALID_POINTER);
1305
1306	VBoxShClListHdrMsg Msg;
1307	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1308	VBOX_SHCL_GUEST_FN_LIST_HDR_READ, VBOX_SHCL_CPARMS_LIST_HDR);
1309
1310	Msg.ReqParms.uContext.SetUInt64(pCtx->idContext);
1311	Msg.ReqParms.uHandle.SetUInt64(hList);
1312	Msg.ReqParms.fFlags.SetUInt32(fFlags);
1313
1314	Msg.fFeatures.SetUInt32(0);
1315	Msg.cbTotalSize.SetUInt32(0);
1316	Msg.cTotalObjects.SetUInt64(0);
1317	Msg.cbTotalSize.SetUInt64(0);
1318
1319	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1320	if (RT_SUCCESS(rc))
1321	{
1322	rc = Msg.fFeatures.GetUInt32(&pListHdr->fFeatures);
1323	if (RT_SUCCESS(rc))
1324	rc = Msg.cTotalObjects.GetUInt64(&pListHdr->cEntries);
1325	if (RT_SUCCESS(rc))
1326	rc = Msg.cbTotalSize.GetUInt64(&pListHdr->cbTotalSize);
1327	}
1328
1329	LogFlowFuncLeaveRC(rc);
1330	return rc;
1331	}
1332
1333	/**
1334	* Receives a host request to read a transfer list header on the guest.
1335	*
1336	* @returns VBox status code.
1337	* @param pCtx Shared Clipboard command context to use for the connection.
1338	* @param phList Where to return the list handle to read list header for.
1339	* @param pfFlags Where to return the List header read flags to use.
1340	*/
1341	VBGLR3DECL(int) VbglR3ClipboardTransferListHdrReadRecvReq(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTHANDLE phList, uint32_t *pfFlags)
1342	{
1343	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1344	AssertPtrReturn(phList, VERR_INVALID_POINTER);
1345	AssertPtrReturn(pfFlags, VERR_INVALID_POINTER);
1346
1347	VBoxShClListHdrReadReqMsg Msg;
1348	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1349	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_LIST_HDR_READ_REQ);
1350
1351	Msg.ReqParms.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_LIST_HDR_READ);
1352	Msg.ReqParms.uHandle.SetUInt64(0);
1353	Msg.ReqParms.fFlags.SetUInt32(0);
1354
1355	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1356	if (RT_SUCCESS(rc))
1357	{
1358	rc = Msg.ReqParms.uContext.GetUInt64(&pCtx->idContext);
1359	if (RT_SUCCESS(rc))
1360	rc = Msg.ReqParms.uHandle.GetUInt64(phList);
1361	if (RT_SUCCESS(rc))
1362	rc = Msg.ReqParms.fFlags.GetUInt32(pfFlags);
1363	}
1364
1365	LogFlowFuncLeaveRC(rc);
1366	return rc;
1367	}
1368
1369	/**
1370	* Sends (writes) a transfer list header to the host.
1371	*
1372	* @returns VBox status code.
1373	* @param pCtx Shared Clipboard command context to use for the connection.
1374	* @param hList List handle to write list header for.
1375	* @param pListHdr List header to write.
1376	*/
1377	VBGLR3DECL(int) VbglR3ClipboardTransferListHdrWrite(PVBGLR3SHCLCMDCTX pCtx, SHCLLISTHANDLE hList,
1378	PSHCLLISTHDR pListHdr)
1379	{
1380	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1381	AssertPtrReturn(pListHdr, VERR_INVALID_POINTER);
1382
1383	VBoxShClListHdrMsg Msg;
1384	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1385	VBOX_SHCL_GUEST_FN_LIST_HDR_WRITE, VBOX_SHCL_CPARMS_LIST_HDR);
1386
1387	Msg.ReqParms.uContext.SetUInt64(pCtx->idContext);
1388	Msg.ReqParms.uHandle.SetUInt64(hList);
1389	Msg.ReqParms.fFlags.SetUInt32(0);
1390
1391	Msg.fFeatures.SetUInt32(0);
1392	Msg.cbTotalSize.SetUInt32(pListHdr->fFeatures);
1393	Msg.cTotalObjects.SetUInt64(pListHdr->cEntries);
1394	Msg.cbTotalSize.SetUInt64(pListHdr->cbTotalSize);
1395
1396	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1397
1398	LogFlowFuncLeaveRC(rc);
1399	return rc;
1400	}
1401
1402	/**
1403	* Sends a request to read a transfer list entry from the host.
1404	*
1405	* @returns VBox status code.
1406	* @param pCtx Shared Clipboard command context to use for the connection.
1407	* @param hList List handle to request to read a list entry for.
1408	* @param pListEntry Where to return the list entry read from the host.
1409	*/
1410	VBGLR3DECL(int) VbglR3ClipboardTransferListEntryRead(PVBGLR3SHCLCMDCTX pCtx, SHCLLISTHANDLE hList,
1411	PSHCLLISTENTRY pListEntry)
1412	{
1413	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1414	AssertPtrReturn(pListEntry, VERR_INVALID_POINTER);
1415
1416	VBoxShClListEntryMsg Msg;
1417	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1418	VBOX_SHCL_GUEST_FN_LIST_ENTRY_READ, VBOX_SHCL_CPARMS_LIST_ENTRY);
1419
1420	Msg.ReqParms.uContext.SetUInt64(pCtx->idContext);
1421	Msg.ReqParms.uHandle.SetUInt64(hList);
1422	Msg.ReqParms.fInfo.SetUInt32(0);
1423
1424	Msg.szName.SetPtr(pListEntry->pszName, pListEntry->cbName);
1425	Msg.cbInfo.SetUInt32(pListEntry->cbInfo);
1426	Msg.pvInfo.SetPtr(pListEntry->pvInfo, pListEntry->cbInfo);
1427
1428	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1429	if (RT_SUCCESS(rc))
1430	{
1431	rc = Msg.cbInfo.GetUInt32(&pListEntry->cbInfo); AssertRC(rc);
1432	}
1433
1434	LogFlowFuncLeaveRC(rc);
1435	return rc;
1436	}
1437
1438	/**
1439	* Receives a host request to read a transfer list entry from the guest.
1440	*
1441	* @returns VBox status code.
1442	* @param pCtx Shared Clipboard command context to use for the connection.
1443	* @param phList Where to return the list handle to read a list entry for.
1444	* @param pfInfo Where to return the list read flags.
1445	*/
1446	VBGLR3DECL(int) VbglR3ClipboardTransferListEntryReadRecvReq(PVBGLR3SHCLCMDCTX pCtx, PSHCLLISTHANDLE phList, uint32_t *pfInfo)
1447	{
1448	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1449	AssertPtrReturn(phList, VERR_INVALID_POINTER);
1450	AssertPtrReturn(pfInfo, VERR_INVALID_POINTER);
1451
1452	VBoxShClListEntryReadReqMsg Msg;
1453	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1454	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_LIST_ENTRY_READ);
1455
1456	Msg.ReqParms.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_LIST_ENTRY_READ);
1457	Msg.ReqParms.uHandle.SetUInt64(0);
1458	Msg.ReqParms.fInfo.SetUInt32(0);
1459
1460	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1461	if (RT_SUCCESS(rc))
1462	{
1463	rc = Msg.ReqParms.uContext.GetUInt64(&pCtx->idContext);
1464	if (RT_SUCCESS(rc))
1465	{
1466	rc = Msg.ReqParms.uHandle.GetUInt64(phList);
1467	AssertRC(rc);
1468	}
1469	if (RT_SUCCESS(rc))
1470	{
1471	rc = Msg.ReqParms.fInfo.GetUInt32(pfInfo);
1472	AssertRC(rc);
1473	}
1474	}
1475
1476	LogFlowFuncLeaveRC(rc);
1477	return rc;
1478	}
1479
1480	/**
1481	* Sends (writes) a transfer list entry to the host.
1482	*
1483	* @returns VBox status code.
1484	* @param pCtx Shared Clipboard command context to use for the connection.
1485	* @param hList List handle to write a list etnry for.
1486	* @param pListEntry List entry to write.
1487	*/
1488	VBGLR3DECL(int) VbglR3ClipboardTransferListEntryWrite(PVBGLR3SHCLCMDCTX pCtx, SHCLLISTHANDLE hList,
1489	PSHCLLISTENTRY pListEntry)
1490	{
1491	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1492	AssertPtrReturn(pListEntry, VERR_INVALID_POINTER);
1493
1494	VBoxShClListEntryMsg Msg;
1495	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1496	VBOX_SHCL_GUEST_FN_LIST_ENTRY_WRITE, VBOX_SHCL_CPARMS_LIST_ENTRY);
1497
1498	Msg.ReqParms.uContext.SetUInt64(pCtx->idContext);
1499	Msg.ReqParms.uHandle.SetUInt64(hList);
1500	Msg.ReqParms.fInfo.SetUInt32(pListEntry->fInfo);
1501
1502	Msg.szName.SetPtr(pListEntry->pszName, pListEntry->cbName);
1503	Msg.cbInfo.SetUInt32(pListEntry->cbInfo);
1504	Msg.pvInfo.SetPtr(pListEntry->pvInfo, pListEntry->cbInfo);
1505
1506	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1507
1508	LogFlowFuncLeaveRC(rc);
1509	return rc;
1510	}
1511
1512	/**
1513	* Receives a host request to open a transfer object on the guest.
1514	*
1515	* @returns VBox status code.
1516	* @param pCtx Shared Clipboard command context to use for the connection.
1517	* @param pCreateParms Where to store the object open/create parameters received from the host.
1518	*/
1519	VBGLR3DECL(int) VbglR3ClipboardTransferObjOpenRecv(PVBGLR3SHCLCMDCTX pCtx, PSHCLOBJOPENCREATEPARMS pCreateParms)
1520	{
1521	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1522	AssertPtrReturn(pCreateParms, VERR_INVALID_POINTER);
1523
1524	VBoxShClObjOpenMsg Msg;
1525	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1526	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_OBJ_OPEN);
1527
1528	Msg.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_OPEN);
1529	Msg.uHandle.SetUInt64(0);
1530	Msg.szPath.SetPtr(pCreateParms->pszPath, pCreateParms->cbPath);
1531	Msg.fCreate.SetUInt32(0);
1532
1533	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1534	if (RT_SUCCESS(rc))
1535	{
1536	rc = Msg.uContext.GetUInt64(&pCtx->idContext);
1537	if (RT_SUCCESS(rc))
1538	rc = Msg.fCreate.GetUInt32(&pCreateParms->fCreate);
1539	}
1540
1541	LogFlowFuncLeaveRC(rc);
1542	return rc;
1543	}
1544
1545	/**
1546	* Replies a host request to open a transfer object.
1547	*
1548	* @returns VBox status code.
1549	* @param pCtx Shared Clipboard command context to use for the connection.
1550	* @param rcReply Return code to reply to the host.
1551	* @param hObj Object handle of opened object to reply to the host.
1552	*/
1553	VBGLR3DECL(int) VbglR3ClipboardTransferObjOpenReply(PVBGLR3SHCLCMDCTX pCtx, int rcReply, SHCLOBJHANDLE hObj)
1554	{
1555	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1556
1557	VBoxShClReplyMsg Msg;
1558	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1559	VBOX_SHCL_GUEST_FN_REPLY, VBOX_SHCL_CPARMS_REPLY_MIN + 1);
1560
1561	Msg.uContext.SetUInt64(pCtx->idContext);
1562	Msg.enmType.SetUInt32(VBOX_SHCL_TX_REPLYMSGTYPE_OBJ_OPEN);
1563	Msg.rc.SetUInt32((uint32_t)rcReply); /** int vs. uint32_t */
1564	Msg.pvPayload.SetPtr(NULL, 0);
1565
1566	Msg.u.ObjOpen.uHandle.SetUInt64(hObj);
1567
1568	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1569
1570	LogFlowFuncLeaveRC(rc);
1571	return rc;
1572	}
1573
1574	/**
1575	* Sends a transfer object open request to the host.
1576	*
1577	* @returns VBox status code.
1578	* @param pCtx Shared Clipboard command context to use for the connection.
1579	* @param pCreateParms Object open/create parameters to use for opening the object on the host.
1580	* @param phObj Where to return the object handle from the host.
1581	*/
1582	VBGLR3DECL(int) VbglR3ClipboardTransferObjOpenSend(PVBGLR3SHCLCMDCTX pCtx, PSHCLOBJOPENCREATEPARMS pCreateParms,
1583	PSHCLOBJHANDLE phObj)
1584	{
1585	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1586	AssertPtrReturn(pCreateParms, VERR_INVALID_POINTER);
1587	AssertPtrReturn(phObj, VERR_INVALID_POINTER);
1588
1589	VBoxShClObjOpenMsg Msg;
1590	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1591	VBOX_SHCL_GUEST_FN_OBJ_OPEN, VBOX_SHCL_CPARMS_OBJ_OPEN);
1592
1593	Msg.uContext.SetUInt64(pCtx->idContext);
1594	Msg.uHandle.SetUInt64(0);
1595	Msg.szPath.SetPtr((void *)pCreateParms->pszPath, pCreateParms->cbPath);
1596	Msg.fCreate.SetUInt32(pCreateParms->fCreate);
1597
1598	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1599	if (RT_SUCCESS(rc))
1600	{
1601	Msg.uHandle.GetUInt64(phObj);
1602	}
1603
1604	LogFlowFuncLeaveRC(rc);
1605	return rc;
1606	}
1607
1608	/**
1609	* Receives a host request to close a transfer object on the guest.
1610	*
1611	* @returns VBox status code.
1612	* @param pCtx Shared Clipboard command context to use for the connection.
1613	* @param phObj Where to return the object handle to close from the host.
1614	*/
1615	VBGLR3DECL(int) VbglR3ClipboardTransferObjCloseRecv(PVBGLR3SHCLCMDCTX pCtx, PSHCLOBJHANDLE phObj)
1616	{
1617	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1618	AssertPtrReturn(phObj, VERR_INVALID_POINTER);
1619
1620	VBoxShClObjCloseMsg Msg;
1621	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1622	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_OBJ_CLOSE);
1623
1624	Msg.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_CLOSE);
1625	Msg.uHandle.SetUInt64(0);
1626
1627	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1628	if (RT_SUCCESS(rc))
1629	{
1630	rc = Msg.uContext.GetUInt64(&pCtx->idContext);
1631	if (RT_SUCCESS(rc))
1632	rc = Msg.uHandle.GetUInt64(phObj);
1633	}
1634
1635	LogFlowFuncLeaveRC(rc);
1636	return rc;
1637	}
1638
1639	/**
1640	* Replies to a transfer object open request from the host.
1641	*
1642	* @returns VBox status code.
1643	* @param pCtx Shared Clipboard command context to use for the connection.
1644	* @param rcReply Return code to reply to the host.
1645	* @param hObj Object handle to reply to the host.
1646	*/
1647	VBGLR3DECL(int) VbglR3ClipboardTransferObjCloseReply(PVBGLR3SHCLCMDCTX pCtx, int rcReply, SHCLOBJHANDLE hObj)
1648	{
1649	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1650
1651	VBoxShClReplyMsg Msg;
1652	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1653	VBOX_SHCL_GUEST_FN_REPLY, VBOX_SHCL_CPARMS_REPLY_MIN + 1);
1654
1655	Msg.uContext.SetUInt64(pCtx->idContext);
1656	Msg.enmType.SetUInt32(VBOX_SHCL_TX_REPLYMSGTYPE_OBJ_CLOSE);
1657	Msg.rc.SetUInt32((uint32_t)rcReply); /** int vs. uint32_t */
1658	Msg.pvPayload.SetPtr(NULL, 0);
1659
1660	Msg.u.ObjClose.uHandle.SetUInt64(hObj);
1661
1662	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1663
1664	LogFlowFuncLeaveRC(rc);
1665	return rc;
1666	}
1667
1668	/**
1669	* Sends a request to close a transfer object to the host.
1670	*
1671	* @returns VBox status code.
1672	* @param pCtx Shared Clipboard command context to use for the connection.
1673	* @param hObj Object handle to close on the host.
1674	*/
1675	VBGLR3DECL(int) VbglR3ClipboardTransferObjCloseSend(PVBGLR3SHCLCMDCTX pCtx, SHCLOBJHANDLE hObj)
1676	{
1677	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1678
1679	VBoxShClObjCloseMsg Msg;
1680	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1681	VBOX_SHCL_GUEST_FN_OBJ_CLOSE, VBOX_SHCL_CPARMS_OBJ_CLOSE);
1682
1683	Msg.uContext.SetUInt64(pCtx->idContext);
1684	Msg.uHandle.SetUInt64(hObj);
1685
1686	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1687
1688	LogFlowFuncLeaveRC(rc);
1689	return rc;
1690	}
1691
1692	/**
1693	* Receives a host request to read from a transfer object on the guest.
1694	*
1695	* @returns VBox status code.
1696	* @param pCtx Shared Clipboard command context to use for the connection.
1697	* @param phObj Where to return the object handle to read from.
1698	* @param pcbToRead Where to return the amount (in bytes) to read.
1699	* @param pfFlags Where to return the read flags.
1700	*/
1701	VBGLR3DECL(int) VbglR3ClipboardTransferObjReadRecv(PVBGLR3SHCLCMDCTX pCtx, PSHCLOBJHANDLE phObj, uint32_t *pcbToRead,
1702	uint32_t *pfFlags)
1703	{
1704	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1705	AssertPtrReturn(phObj, VERR_INVALID_POINTER);
1706	AssertPtrReturn(pcbToRead, VERR_INVALID_POINTER);
1707	AssertPtrReturn(pfFlags, VERR_INVALID_POINTER);
1708
1709	VBoxShClObjReadReqMsg Msg;
1710	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1711	VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_CPARMS_OBJ_READ_REQ);
1712
1713	Msg.ReqParms.uContext.SetUInt64(VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_READ);
1714	Msg.ReqParms.uHandle.SetUInt64(0);
1715	Msg.ReqParms.cbToRead.SetUInt32(0);
1716	Msg.ReqParms.fRead.SetUInt32(0);
1717
1718	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1719	if (RT_SUCCESS(rc))
1720	{
1721	rc = Msg.ReqParms.uContext.GetUInt64(&pCtx->idContext);
1722	if (RT_SUCCESS(rc))
1723	rc = Msg.ReqParms.uHandle.GetUInt64(phObj);
1724	if (RT_SUCCESS(rc))
1725	rc = Msg.ReqParms.cbToRead.GetUInt32(pcbToRead);
1726	if (RT_SUCCESS(rc))
1727	rc = Msg.ReqParms.fRead.GetUInt32(pfFlags);
1728	}
1729
1730	LogFlowFuncLeaveRC(rc);
1731	return rc;
1732	}
1733
1734	/**
1735	* Sends a request to read from a transfer object to the host.
1736	*
1737	* @returns VBox status code.
1738	* @param pCtx Shared Clipboard command context to use for the connection.
1739	* @param hObj Object handle of object to read from.
1740	* @param pvData Buffer where to store the read object data.
1741	* @param cbData Size (in bytes) of buffer.
1742	* @param pcbRead Where to store the amount (in bytes) read from the object.
1743	*/
1744	VBGLR3DECL(int) VbglR3ClipboardTransferObjReadSend(PVBGLR3SHCLCMDCTX pCtx, SHCLOBJHANDLE hObj,
1745	void pvData, uint32_t cbData, uint32_t pcbRead)
1746	{
1747	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1748	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
1749	AssertReturn(cbData, VERR_INVALID_PARAMETER);
1750	/* pcbRead is optional. */
1751
1752	VBoxShClObjReadWriteMsg Msg;
1753	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1754	VBOX_SHCL_GUEST_FN_OBJ_READ, VBOX_SHCL_CPARMS_OBJ_READ);
1755
1756	Msg.uContext.SetUInt64(pCtx->idContext);
1757	Msg.uHandle.SetUInt64(hObj);
1758	Msg.cbData.SetUInt32(cbData);
1759	Msg.pvData.SetPtr(pvData, cbData);
1760	Msg.cbChecksum.SetUInt32(0);
1761	Msg.pvChecksum.SetPtr(NULL, 0);
1762
1763	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1764	if (RT_SUCCESS(rc))
1765	{
1766	/** @todo Add checksum support. */
1767
1768	if (pcbRead)
1769	{
1770	rc = Msg.cbData.GetUInt32(pcbRead); AssertRC(rc);
1771	AssertReturn(cbData >= *pcbRead, VERR_TOO_MUCH_DATA);
1772	}
1773	}
1774
1775	LogFlowFuncLeaveRC(rc);
1776	return rc;
1777	}
1778
1779	/**
1780	* Sends a request to write to a transfer object to the host.
1781	*
1782	* @returns VBox status code.
1783	* @param pCtx Shared Clipboard command context to use for the connection.
1784	* @param hObj Object handle of object to write to.
1785	* @param pvData Buffer of data to write to object.
1786	* @param cbData Size (in bytes) of buffer.
1787	* @param pcbWritten Where to store the amount (in bytes) written to the object.
1788	*/
1789	VBGLR3DECL(int) VbglR3ClipboardTransferObjWriteSend(PVBGLR3SHCLCMDCTX pCtx, SHCLOBJHANDLE hObj,
1790	void pvData, uint32_t cbData, uint32_t pcbWritten)
1791	{
1792	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1793	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
1794	/* cbData can be 0. */
1795	/* pcbWritten is optional. */
1796
1797	VBoxShClObjReadWriteMsg Msg;
1798	VBGL_HGCM_HDR_INIT(&Msg.hdr, pCtx->idClient,
1799	VBOX_SHCL_GUEST_FN_OBJ_WRITE, VBOX_SHCL_CPARMS_OBJ_WRITE);
1800
1801	Msg.uContext.SetUInt64(pCtx->idContext);
1802	Msg.uHandle.SetUInt64(hObj);
1803	Msg.cbData.SetUInt32(cbData);
1804	Msg.pvData.SetPtr(pvData, cbData);
1805	Msg.cbChecksum.SetUInt32(0);
1806	Msg.pvChecksum.SetPtr(NULL, 0);
1807
1808	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
1809	if (RT_SUCCESS(rc))
1810	{
1811	/** @todo Add checksum support. */
1812
1813	if (pcbWritten)
1814	pcbWritten = cbData; /* @todo For now return all as being written. */
1815	}
1816
1817	LogFlowFuncLeaveRC(rc);
1818	return rc;
1819	}
1820
1821
1822	/*********************************************************************************************************************************
1823	* Transfer interface implementations *
1824	*********************************************************************************************************************************/
1825
1826	/** @copydoc SHCLTXPROVIDERIFACE::pfnRootListRead */
1827	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceRootListRead(PSHCLTXPROVIDERCTX pCtx)
1828	{
1829	LogFlowFuncEnter();
1830
1831	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1832	AssertPtr(pCmdCtx);
1833
1834	int rc = VbglR3ClipboardTransferRootListRead(pCmdCtx, pCtx->pTransfer);
1835
1836	LogFlowFuncLeaveRC(rc);
1837	return rc;
1838	}
1839
1840	/** @copydoc SHCLTXPROVIDERIFACE::pfnListOpen */
1841	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceListOpen(PSHCLTXPROVIDERCTX pCtx, PSHCLLISTOPENPARMS pOpenParms,
1842	PSHCLLISTHANDLE phList)
1843	{
1844	LogFlowFuncEnter();
1845
1846	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1847	AssertPtr(pCmdCtx);
1848
1849	int rc = VbglR3ClipboardTransferListOpenSend(pCmdCtx, pOpenParms, phList);
1850
1851	LogFlowFuncLeaveRC(rc);
1852	return rc;
1853	}
1854
1855	/** @copydoc SHCLTXPROVIDERIFACE::pfnListClose */
1856	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceListClose(PSHCLTXPROVIDERCTX pCtx, SHCLLISTHANDLE hList)
1857	{
1858	LogFlowFuncEnter();
1859
1860	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1861	AssertPtr(pCmdCtx);
1862
1863	int rc = VbglR3ClipboardTransferListCloseSend(pCmdCtx, hList);
1864
1865	LogFlowFuncLeaveRC(rc);
1866	return rc;
1867	}
1868
1869	/** @copydoc SHCLTXPROVIDERIFACE::pfnListHdrRead */
1870	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceListHdrRead(PSHCLTXPROVIDERCTX pCtx,
1871	SHCLLISTHANDLE hList, PSHCLLISTHDR pListHdr)
1872	{
1873	LogFlowFuncEnter();
1874
1875	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1876	AssertPtr(pCmdCtx);
1877
1878	int rc = ShClTransferListHdrInit(pListHdr);
1879	if (RT_SUCCESS(rc))
1880	{
1881	if (RT_SUCCESS(rc))
1882	{
1883	rc = VbglR3ClipboardTransferListHdrRead(pCmdCtx, hList, 0 /* fFlags */, pListHdr);
1884	}
1885	else
1886	ShClTransferListHdrDestroy(pListHdr);
1887	}
1888
1889	LogFlowFuncLeaveRC(rc);
1890	return rc;
1891	}
1892
1893	/** @copydoc SHCLTXPROVIDERIFACE::pfnListEntryRead */
1894	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceListEntryRead(PSHCLTXPROVIDERCTX pCtx,
1895	SHCLLISTHANDLE hList, PSHCLLISTENTRY pListEntry)
1896	{
1897	LogFlowFuncEnter();
1898
1899	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1900	AssertPtr(pCmdCtx);
1901
1902	int rc = VbglR3ClipboardTransferListEntryRead(pCmdCtx, hList, pListEntry);
1903
1904	LogFlowFuncLeaveRC(rc);
1905	return rc;
1906	}
1907
1908	/** @copydoc SHCLTXPROVIDERIFACE::pfnObjOpen */
1909	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceObjOpen(PSHCLTXPROVIDERCTX pCtx,
1910	PSHCLOBJOPENCREATEPARMS pCreateParms, PSHCLOBJHANDLE phObj)
1911	{
1912	LogFlowFuncEnter();
1913
1914	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1915	AssertPtr(pCmdCtx);
1916
1917	int rc = VbglR3ClipboardTransferObjOpenSend(pCmdCtx, pCreateParms, phObj);
1918
1919	LogFlowFuncLeaveRC(rc);
1920	return rc;
1921	}
1922
1923	/** @copydoc SHCLTXPROVIDERIFACE::pfnObjClose */
1924	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceObjClose(PSHCLTXPROVIDERCTX pCtx, SHCLOBJHANDLE hObj)
1925	{
1926	LogFlowFuncEnter();
1927
1928	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1929	AssertPtr(pCmdCtx);
1930
1931	int rc = VbglR3ClipboardTransferObjCloseSend(pCmdCtx, hObj);
1932
1933	LogFlowFuncLeaveRC(rc);
1934	return rc;
1935	}
1936
1937	/** @copydoc SHCLTXPROVIDERIFACE::pfnObjRead */
1938	static DECLCALLBACK(int) vbglR3ClipboardTransferIfaceObjRead(PSHCLTXPROVIDERCTX pCtx,
1939	SHCLOBJHANDLE hObj, void *pvData, uint32_t cbData,
1940	uint32_t fFlags, uint32_t *pcbRead)
1941	{
1942	LogFlowFuncEnter();
1943
1944	PVBGLR3SHCLCMDCTX pCmdCtx = (PVBGLR3SHCLCMDCTX)pCtx->pvUser;
1945	AssertPtr(pCmdCtx);
1946
1947	RT_NOREF(fFlags); /* Not used yet. */
1948
1949	int rc = VbglR3ClipboardTransferObjReadSend(pCmdCtx, hObj, pvData, cbData, pcbRead);
1950
1951	LogFlowFuncLeaveRC(rc);
1952	return rc;
1953	}
1954
1955	/**
1956	* Creates (and registers) a transfer on the guest side.
1957	*
1958	* @returns VBox status code.
1959	* @param pCmdCtx Command context to use.
1960	* @param pTransferCtx Transfer context to init transfer for.
1961	* @param enmDir Specifies the transfer direction of this transfer.
1962	* @param enmSource Specifies the data source of the transfer.
1963	* @param idTransfer ID of transfer to create.
1964	* @param ppTransfer Where to return the transfer object on success. Optional.
1965	*/
1966	static int vbglR3ClipboardTransferCreate(PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFERCTX pTransferCtx,
1967	SHCLTRANSFERDIR enmDir, SHCLSOURCE enmSource, SHCLTRANSFERID idTransfer,
1968	PSHCLTRANSFER *ppTransfer)
1969	{
1970	AssertReturn(idTransfer != NIL_SHCLTRANSFERID, VERR_WRONG_ORDER);
1971
1972	RT_NOREF(pCmdCtx);
1973
1974	PSHCLTRANSFER pTransfer;
1975	int rc = ShClTransferCreate(enmDir, enmSource, &pTransfer);
1976	if (RT_SUCCESS(rc))
1977	{
1978	/* Set the callbacks the (OS-dependent) implementation relies on. Optional. */
1979	ShClTransferSetCallbacks(pTransfer, &pCmdCtx->Transfers.Callbacks);
1980
1981	rc = ShClTransferCtxRegisterById(pTransferCtx, pTransfer, idTransfer);
1982	if ( RT_SUCCESS(rc)
1983	&& ppTransfer)
1984	*ppTransfer = pTransfer;
1985	}
1986
1987	if (RT_SUCCESS(rc))
1988	LogRel(("Shared Clipboard: Transfer %RU32 successfully created\n", idTransfer));
1989	else
1990	LogRel(("Shared Clipboard: Error creating transfer %RU32, rc=%Rrc\n", idTransfer, rc));
1991
1992	LogFlowFuncLeaveRC(rc);
1993	return rc;
1994	}
1995
1996	/**
1997	* Initializes a transfer on the guest side.
1998	*
1999	* @returns VBox status code.
2000	* @param pCmdCtx Command context to use.
2001	* @param pTransfer Transfer to init.
2002	*/
2003	static int vbglR3ClipboardTransferInit(PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFER pTransfer)
2004	{
2005	LogFlowFuncEnter();
2006
2007	SHCLTRANSFERDIR const enmDir = ShClTransferGetDir(pTransfer);
2008
2009	SHCLTXPROVIDER Provider;
2010	RT_ZERO(Provider);
2011
2012	/* Assign local provider first and overwrite interface methods below if needed. */
2013	ShClTransferProviderLocalQueryInterface(&Provider);
2014
2015	/* If this is a read transfer (reading data from host), set the interface to use
2016	* our VbglR3 routines here. */
2017	if (enmDir == SHCLTRANSFERDIR_FROM_REMOTE) /* Host -> Guest */
2018	{
2019	Provider.Interface.pfnRootListRead = vbglR3ClipboardTransferIfaceRootListRead;
2020
2021	Provider.Interface.pfnListOpen = vbglR3ClipboardTransferIfaceListOpen;
2022	Provider.Interface.pfnListClose = vbglR3ClipboardTransferIfaceListClose;
2023	Provider.Interface.pfnListHdrRead = vbglR3ClipboardTransferIfaceListHdrRead;
2024	Provider.Interface.pfnListEntryRead = vbglR3ClipboardTransferIfaceListEntryRead;
2025
2026	Provider.Interface.pfnObjOpen = vbglR3ClipboardTransferIfaceObjOpen;
2027	Provider.Interface.pfnObjClose = vbglR3ClipboardTransferIfaceObjClose;
2028	Provider.Interface.pfnObjRead = vbglR3ClipboardTransferIfaceObjRead;
2029	}
2030	else if (enmDir == SHCLTRANSFERDIR_TO_REMOTE) /* Guest -> Host */
2031	{
2032	/* Uses the local provider assigned above. */
2033	}
2034	else
2035	AssertFailed();
2036
2037	Provider.pvUser = pCmdCtx;
2038
2039	/* Set the provider first before calling ShClTransferInit(), as the init callback might utilize some of the
2040	* provider functions. */
2041	int rc = ShClTransferSetProvider(pTransfer, &Provider);
2042	if (RT_SUCCESS(rc))
2043	{
2044	rc = ShClTransferInit(pTransfer);
2045	if (RT_SUCCESS(rc))
2046	{
2047	/* As soon as we report the INITIALIZED state to the host, the host can start reading stuff from the transfer.
2048	* So make sure that we really are ready here. */
2049	if (enmDir == SHCLTRANSFERDIR_TO_REMOTE)
2050	AssertMsgStmt(ShClTransferRootsCount(pTransfer), ("No root entries set yet!\n"
2051	"Those have to be present as soon we report the transfer as being INITIALIZED to the host\n"),
2052	rc = VERR_WRONG_ORDER);
2053	}
2054	}
2055
2056	SHCLTRANSFERID const idTransfer = ShClTransferGetID(pTransfer);
2057
2058	if (RT_SUCCESS(rc))
2059	{
2060	LogRel(("Shared Clipboard: Transfer %RU32 (%s) successfully initialized\n",
2061	idTransfer, enmDir == SHCLTRANSFERDIR_FROM_REMOTE ? "host -> guest" : "guest -> host"));
2062	}
2063	else
2064	LogRel(("Shared Clipboard: Unable to initialize transfer %RU32, rc=%Rrc\n", idTransfer, rc));
2065
2066	LogFlowFuncLeaveRC(rc);
2067	return rc;
2068	}
2069
2070	/**
2071	* Destroys a transfer on the guest side.
2072	*
2073	* @returns VBox status code.
2074	* @param pCmdCtx Command context to use.
2075	* @param pTransferCtx Transfer context to uninit transfer for.
2076	* @param idTransfer ID of transfer to initialize.
2077	*/
2078	static int vbglR3ClipboardTransferDestroy(PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFERCTX pTransferCtx, SHCLTRANSFERID idTransfer)
2079	{
2080	RT_NOREF(pCmdCtx);
2081
2082	LogFlowFuncEnter();
2083
2084	int rc;
2085
2086	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx, idTransfer);
2087	if (pTransfer)
2088	{
2089	rc = ShClTransferCtxUnregisterById(pTransferCtx, idTransfer);
2090	if (RT_SUCCESS(rc))
2091	rc = ShClTransferDestroy(pTransfer);
2092
2093	if (RT_SUCCESS(rc))
2094	{
2095	LogRel(("Shared Clipboard: Transfer %RU32 successfully uninitialized\n", idTransfer));
2096	}
2097	else
2098	LogRel(("Shared Clipboard: Unable to uninitialized transfer %RU32, rc=%Rrc\n", idTransfer, rc));
2099	}
2100	else
2101	rc = VERR_SHCLPB_TRANSFER_ID_NOT_FOUND;
2102
2103	/* Send a reply in any case. */
2104	int rc2 = VbglR3ClipboardTransferStatusReply(pCmdCtx, pTransfer,
2105	RT_SUCCESS(rc)
2106	? SHCLTRANSFERSTATUS_UNINITIALIZED : SHCLTRANSFERSTATUS_ERROR, rc);
2107
2108	/* The host might not have the transfer around anymore at this time, so simply ignore this error. */
2109	if (rc2 == VERR_SHCLPB_TRANSFER_ID_NOT_FOUND)
2110	rc2 = VINF_SUCCESS;
2111
2112	if (RT_SUCCESS(rc))
2113	rc = rc2;
2114
2115	LogFlowFuncLeaveRC(rc);
2116	return rc;
2117	}
2118
2119	/**
2120	* Requests a new transfer from the host.
2121	*
2122	* On success this will issue an INITIALIZED status reply from the host with a transfer ID set.
2123	* This ID will be used to initialize the transfer on the guest side then.
2124	*
2125	* @returns VBox status code.
2126	* @param pCmdCtx Command context to use.
2127	*/
2128	VBGLR3DECL(int) VbglR3ClipboardTransferRequest(PVBGLR3SHCLCMDCTX pCmdCtx)
2129	{
2130	LogFlowFuncEnter();
2131
2132	LogRel2(("Shared Clipboard: Requesting new host -> guest transfer from host\n"));
2133
2134	int rc = vbglR3ClipboardTransferStatusReplyEx(pCmdCtx, 0 /* Context ID not needed */,
2135	SHCLTRANSFERSTATUS_REQUESTED, VINF_SUCCESS);
2136	LogFlowFuncLeaveRC(rc);
2137	return rc;
2138	}
2139
2140	/**
2141	* Starts a transfer on the guest side.
2142	*
2143	* @returns VBox status code.
2144	* @param pCmdCtx Command context to use.
2145	* @param pTransferCtx Transfer context to start transfer for.
2146	* @param uTransferID ID to use for transfer to start.
2147	*/
2148	static int vbglR3ClipboardTransferStart(PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFERCTX pTransferCtx,
2149	SHCLTRANSFERID uTransferID)
2150	{
2151	RT_NOREF(pCmdCtx);
2152
2153	LogFlowFuncEnter();
2154
2155	int rc;
2156
2157	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx, uTransferID);
2158	if (pTransfer)
2159	{
2160	rc = ShClTransferStart(pTransfer);
2161	if (RT_SUCCESS(rc))
2162	{
2163	LogRel(("Shared Clipboard: Transfer %RU32 successfully started\n", uTransferID));
2164	}
2165	else
2166	LogRel(("Shared Clipboard: Unable to start transfer %RU32, rc=%Rrc\n", uTransferID, rc));
2167	}
2168	else
2169	rc = VERR_SHCLPB_TRANSFER_ID_NOT_FOUND;
2170
2171	/* Send a reply in any case. */
2172	int rc2 = VbglR3ClipboardTransferStatusReply(pCmdCtx, pTransfer,
2173	RT_SUCCESS(rc)
2174	? SHCLTRANSFERSTATUS_STARTED : SHCLTRANSFERSTATUS_ERROR, rc);
2175	if (RT_SUCCESS(rc))
2176	rc = rc2;
2177
2178	LogFlowFuncLeaveRC(rc);
2179	return rc;
2180	}
2181
2182	/**
2183	* Stops a transfer on the guest side.
2184	*
2185	* @returns VBox status code, or VERR_NOT_FOUND if transfer has not been found.
2186	* @param pCmdCtx Command context to use.
2187	* @param pTransferCtx Transfer context to stop transfer for.
2188	* @param uTransferID ID of transfer to stop.
2189	*/
2190	static int vbglR3ClipboardTransferStop(PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFERCTX pTransferCtx,
2191	SHCLTRANSFERID uTransferID)
2192	{
2193	LogFlowFuncEnter();
2194
2195	int rc;
2196
2197	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx, uTransferID);
2198	if (pTransfer)
2199	{
2200	rc = ShClTransferCtxUnregisterById(pTransferCtx, uTransferID);
2201	if (RT_SUCCESS(rc))
2202	{
2203	LogRel(("Shared Clipboard: Transfer %RU32 successfully stopped\n", uTransferID));
2204	}
2205	else
2206	LogRel(("Shared Clipboard: Unable to stop transfer %RU32, rc=%Rrc\n", uTransferID, rc));
2207	}
2208	else
2209	rc = VERR_SHCLPB_TRANSFER_ID_NOT_FOUND;
2210
2211	/* Send a reply in any case. */
2212	int rc2 = VbglR3ClipboardTransferStatusReply(pCmdCtx, pTransfer,
2213	RT_SUCCESS(rc)
2214	? SHCLTRANSFERSTATUS_STOPPED : SHCLTRANSFERSTATUS_ERROR, rc);
2215	if (RT_SUCCESS(rc))
2216	rc = rc2;
2217
2218	LogFlowFuncLeaveRC(rc);
2219	return rc;
2220	}
2221
2222	/**
2223	* Sets transfer callbacks of a Shared Clipboard command context.
2224	*
2225	* @param pCmdCtx Command context to set callbacks for.
2226	* @param pCallbacks Pointer to callback table to set.
2227	*/
2228	VBGLR3DECL(void) VbglR3ClipboardTransferSetCallbacks(PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFERCALLBACKS pCallbacks)
2229	{
2230	AssertPtrReturnVoid(pCmdCtx);
2231	AssertPtrReturnVoid(pCallbacks);
2232
2233	ShClTransferCopyCallbacks(&pCmdCtx->Transfers.Callbacks, pCallbacks);
2234	}
2235
2236	VBGLR3DECL(int) VbglR3ClipboardEventGetNextEx(uint32_t idMsg, uint32_t cParms,
2237	PVBGLR3SHCLCMDCTX pCmdCtx, PSHCLTRANSFERCTX pTransferCtx,
2238	PVBGLR3CLIPBOARDEVENT pEvent)
2239	{
2240	AssertPtrReturn(pCmdCtx, VERR_INVALID_POINTER);
2241	AssertPtrReturn(pTransferCtx, VERR_INVALID_POINTER);
2242	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
2243
2244	LogFunc(("Handling idMsg=%RU32 (%s), cParms=%RU32\n", idMsg, ShClHostMsgToStr(idMsg), cParms));
2245
2246	int rc;
2247	if (!pCmdCtx->fUseLegacyProtocol)
2248	{
2249	bool fErrorSent = false; /* Whether an error has been reported back to the host already. */
2250
2251	switch (idMsg)
2252	{
2253	case VBOX_SHCL_HOST_MSG_TRANSFER_STATUS:
2254	{
2255	SHCLTRANSFERDIR enmDir;
2256	SHCLTRANSFERREPORT transferReport;
2257	rc = VbglR3ClipboarTransferStatusRecv(pCmdCtx, &enmDir, &transferReport);
2258	if (RT_SUCCESS(rc))
2259	{
2260	const SHCLTRANSFERID idTransfer = VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext);
2261
2262	LogRel(("Shared Clipboard: Received status %s (%Rrc) for transfer %RU32\n",
2263	ShClTransferStatusToStr(transferReport.uStatus), transferReport.rc, idTransfer));
2264
2265	SHCLSOURCE enmSource = SHCLSOURCE_INVALID;
2266
2267	switch (transferReport.uStatus)
2268	{
2269	case SHCLTRANSFERSTATUS_REQUESTED: /* Only used for H->G transfers. */
2270	{
2271	enmDir = SHCLTRANSFERDIR_FROM_REMOTE;
2272	enmSource = SHCLSOURCE_REMOTE;
2273
2274	/* The host acknowledged our request to create a new transfer.
2275	* So create a new transfer here with the transfer ID we just got from the host.
2276	*
2277	* Actual initialization will be done as soon as the host sends use the INITIALIZED status for it.
2278	*/
2279	PSHCLTRANSFER pTransfer;
2280	rc = vbglR3ClipboardTransferCreate(pCmdCtx, pTransferCtx, enmDir, enmSource, idTransfer, &pTransfer);
2281
2282	/* As soon as we've created our transfer locally, report back INITIALIZED to the host.
2283	* This will initialize the transfer on the host, so that in turn reports INITIALIZED
2284	* back to us (see case down below).*/
2285	int rc2 = VbglR3ClipboardTransferStatusReply(pCmdCtx, pTransfer,
2286	RT_SUCCESS(rc)
2287	? SHCLTRANSFERSTATUS_INITIALIZED : SHCLTRANSFERSTATUS_ERROR, rc);
2288	if (RT_SUCCESS(rc))
2289	rc = rc2;
2290	break;
2291	}
2292
2293	case SHCLTRANSFERSTATUS_INITIALIZED:
2294	{
2295	/* The host announces the transfer direction from its point of view, so inverse the direction here. */
2296	if (enmDir == SHCLTRANSFERDIR_TO_REMOTE) /* H -> G */
2297	{
2298	enmDir = SHCLTRANSFERDIR_FROM_REMOTE;
2299	enmSource = SHCLSOURCE_REMOTE;
2300	}
2301	else if (enmDir == SHCLTRANSFERDIR_FROM_REMOTE) /* G -> H */
2302	{
2303	enmDir = SHCLTRANSFERDIR_TO_REMOTE;
2304	enmSource = SHCLSOURCE_LOCAL;
2305	}
2306	else
2307	AssertFailedBreakStmt(rc = VERR_INVALID_PARAMETER);
2308
2309	if (enmDir == SHCLTRANSFERDIR_FROM_REMOTE) /* H->G */
2310	{
2311	/* The host reported INITIALIZED for the transfer.
2312	* So init our local transfer as well now. */
2313	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx, idTransfer);
2314	if (pTransfer)
2315	{
2316	rc = vbglR3ClipboardTransferInit(pCmdCtx, pTransfer);
2317
2318	/* Only send back a reply on error -- we already reported INITIALIZED
2319	* in the case SHCLTRANSFERSTATUS_REQUESTED above. */
2320	if (RT_FAILURE(rc))
2321	{
2322	int rc2 = VbglR3ClipboardTransferStatusReply(pCmdCtx, pTransfer,
2323	SHCLTRANSFERSTATUS_ERROR, rc);
2324	AssertRC(rc2);
2325	}
2326	}
2327	else
2328	rc = VERR_SHCLPB_TRANSFER_ID_NOT_FOUND;
2329	}
2330	else if (enmDir == SHCLTRANSFERDIR_TO_REMOTE) /* G->H */
2331	{
2332	/* The host reported the INITIALIZED status together with the transfer ID.
2333	* So create a local transfer here with that ID. */
2334	PSHCLTRANSFER pTransfer;
2335	rc = vbglR3ClipboardTransferCreate(pCmdCtx, pTransferCtx, enmDir, enmSource, idTransfer, &pTransfer);
2336	if (RT_SUCCESS(rc))
2337	rc = vbglR3ClipboardTransferInit(pCmdCtx, pTransfer);
2338
2339	/* Send a reply in any case. */
2340	int rc2 = VbglR3ClipboardTransferStatusReply(pCmdCtx, pTransfer,
2341	RT_SUCCESS(rc)
2342	? SHCLTRANSFERSTATUS_INITIALIZED : SHCLTRANSFERSTATUS_ERROR, rc);
2343	if (RT_SUCCESS(rc))
2344	rc = rc2;
2345	}
2346	else
2347	AssertFailedBreakStmt(rc = VERR_INVALID_PARAMETER);
2348
2349	break;
2350	}
2351
2352	case SHCLTRANSFERSTATUS_UNINITIALIZED:
2353	{
2354	rc = vbglR3ClipboardTransferDestroy(pCmdCtx, pTransferCtx, idTransfer);
2355	break;
2356	}
2357
2358	case SHCLTRANSFERSTATUS_STARTED:
2359	{
2360	rc = vbglR3ClipboardTransferStart(pCmdCtx, pTransferCtx, idTransfer);
2361	break;
2362	}
2363
2364	case SHCLTRANSFERSTATUS_STOPPED:
2365	RT_FALL_THROUGH();
2366	case SHCLTRANSFERSTATUS_CANCELED:
2367	RT_FALL_THROUGH();
2368	case SHCLTRANSFERSTATUS_KILLED:
2369	RT_FALL_THROUGH();
2370	case SHCLTRANSFERSTATUS_ERROR:
2371	{
2372	rc = vbglR3ClipboardTransferStop(pCmdCtx, pTransferCtx, idTransfer);
2373	break;
2374	}
2375
2376	default:
2377	LogRel(("Shared Clipboard: Received unknown status %#x (%Rrc) for transfer %RU32\n",
2378	transferReport.uStatus, pEvent->u.TransferStatus.Report.rc, pEvent->u.TransferStatus.uID));
2379	rc = VERR_NOT_SUPPORTED;
2380	break;
2381	}
2382
2383	if (RT_SUCCESS(rc))
2384	{
2385	pEvent->u.TransferStatus.enmDir = enmDir;
2386	pEvent->u.TransferStatus.Report = transferReport;
2387	pEvent->u.TransferStatus.uID = VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext);
2388
2389	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_TRANSFER_STATUS;
2390	}
2391	}
2392	break;
2393	}
2394
2395	case VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_HDR_READ:
2396	{
2397	uint32_t fRoots;
2398	rc = VbglR3ClipboardTransferRootListHdrReadReq(pCmdCtx, &fRoots);
2399
2400	/** @todo Validate / handle fRoots. */
2401
2402	if (RT_SUCCESS(rc))
2403	{
2404	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2405	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2406	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2407
2408	SHCLLISTHDR rootListHdr;
2409	ShClTransferListHdrInit(&rootListHdr);
2410
2411	rootListHdr.cEntries = ShClTransferRootsCount(pTransfer);
2412
2413	LogFlowFunc(("cRoots=%RU32\n", rootListHdr.cEntries));
2414
2415	rc = VbglR3ClipboardTransferRootListHdrReadReply(pCmdCtx, &rootListHdr);
2416	}
2417	break;
2418	}
2419
2420	case VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_ENTRY_READ:
2421	{
2422	uint64_t uIndex;
2423	uint32_t fInfo;
2424	rc = VbglR3ClipboardTransferRootListEntryReadReq(pCmdCtx, &uIndex, &fInfo);
2425	if (RT_SUCCESS(rc))
2426	{
2427	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2428	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2429	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2430
2431	PCSHCLLISTENTRY pEntry = ShClTransferRootsEntryGet(pTransfer, uIndex);
2432	if (pEntry)
2433	{
2434	rc = VbglR3ClipboardTransferRootListEntryReadReply(pCmdCtx, uIndex, pEntry);
2435	}
2436	else
2437	rc = VERR_NOT_FOUND;
2438	}
2439	break;
2440	}
2441
2442	case VBOX_SHCL_HOST_MSG_TRANSFER_LIST_OPEN:
2443	{
2444	SHCLLISTOPENPARMS openParmsList;
2445	rc = ShClTransferListOpenParmsInit(&openParmsList);
2446	if (RT_SUCCESS(rc))
2447	{
2448	rc = VbglR3ClipboardTransferListOpenRecv(pCmdCtx, &openParmsList);
2449	if (RT_SUCCESS(rc))
2450	{
2451	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2452	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2453	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2454
2455	LogFlowFunc(("pszPath=%s\n", openParmsList.pszPath));
2456
2457	SHCLLISTHANDLE hList = NIL_SHCLLISTHANDLE;
2458	rc = ShClTransferListOpen(pTransfer, &openParmsList, &hList);
2459
2460	/* Reply in any case. */
2461	int rc2 = VbglR3ClipboardTransferListOpenReply(pCmdCtx, rc, hList);
2462	AssertRC(rc2);
2463	}
2464
2465	ShClTransferListOpenParmsDestroy(&openParmsList);
2466	}
2467
2468	break;
2469	}
2470
2471	case VBOX_SHCL_HOST_MSG_TRANSFER_LIST_CLOSE:
2472	{
2473	SHCLLISTHANDLE hList;
2474	rc = VbglR3ClipboardTransferListCloseRecv(pCmdCtx, &hList);
2475	if (RT_SUCCESS(rc))
2476	{
2477	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2478	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2479	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2480
2481	rc = ShClTransferListClose(pTransfer, hList);
2482
2483	/* Reply in any case. */
2484	int rc2 = VbglR3ClipboardTransferListCloseReply(pCmdCtx, rc, hList);
2485	AssertRC(rc2);
2486	}
2487
2488	break;
2489	}
2490
2491	case VBOX_SHCL_HOST_MSG_TRANSFER_LIST_HDR_READ:
2492	{
2493	/** @todo Handle filter + list features. */
2494
2495	SHCLLISTHANDLE hList = NIL_SHCLLISTHANDLE;
2496	uint32_t fFlags = 0;
2497	rc = VbglR3ClipboardTransferListHdrReadRecvReq(pCmdCtx, &hList, &fFlags);
2498	if (RT_SUCCESS(rc))
2499	{
2500	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2501	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2502	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2503
2504	SHCLLISTHDR hdrList;
2505	rc = ShClTransferListGetHeader(pTransfer, hList, &hdrList);
2506	if (RT_SUCCESS(rc))
2507	{
2508	rc = VbglR3ClipboardTransferListHdrWrite(pCmdCtx, hList, &hdrList);
2509
2510	ShClTransferListHdrDestroy(&hdrList);
2511	}
2512	}
2513
2514	break;
2515	}
2516
2517	case VBOX_SHCL_HOST_MSG_TRANSFER_LIST_ENTRY_READ:
2518	{
2519	LogFlowFunc(("VBOX_SHCL_HOST_MSG_TRANSFER_LIST_ENTRY_READ\n"));
2520
2521	SHCLLISTENTRY entryList;
2522	rc = ShClTransferListEntryInit(&entryList);
2523	if (RT_SUCCESS(rc))
2524	{
2525	SHCLLISTHANDLE hList;
2526	uint32_t fInfo;
2527	rc = VbglR3ClipboardTransferListEntryReadRecvReq(pCmdCtx, &hList, &fInfo);
2528	if (RT_SUCCESS(rc))
2529	{
2530	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2531	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2532	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2533
2534	rc = ShClTransferListRead(pTransfer, hList, &entryList);
2535	if (RT_SUCCESS(rc))
2536	{
2537	PSHCLFSOBJINFO pObjInfo = (PSHCLFSOBJINFO)entryList.pvInfo;
2538	Assert(entryList.cbInfo == sizeof(SHCLFSOBJINFO));
2539
2540	RT_NOREF(pObjInfo);
2541
2542	LogFlowFunc(("\t%s (%RU64 bytes)\n", entryList.pszName, pObjInfo->cbObject));
2543
2544	rc = VbglR3ClipboardTransferListEntryWrite(pCmdCtx, hList, &entryList);
2545	}
2546	}
2547
2548	ShClTransferListEntryDestroy(&entryList);
2549	}
2550
2551	break;
2552	}
2553
2554	case VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_OPEN:
2555	{
2556	SHCLOBJOPENCREATEPARMS openParms;
2557	rc = ShClTransferObjOpenParmsInit(&openParms);
2558	if (RT_SUCCESS(rc))
2559	{
2560	rc = VbglR3ClipboardTransferObjOpenRecv(pCmdCtx, &openParms);
2561	if (RT_SUCCESS(rc))
2562	{
2563	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2564	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2565	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2566
2567	SHCLOBJHANDLE hObj;
2568	rc = ShClTransferObjOpen(pTransfer, &openParms, &hObj);
2569
2570	/* Reply in any case. */
2571	int rc2 = VbglR3ClipboardTransferObjOpenReply(pCmdCtx, rc, hObj);
2572	AssertRC(rc2);
2573	}
2574
2575	ShClTransferObjOpenParmsDestroy(&openParms);
2576	}
2577
2578	break;
2579	}
2580
2581	case VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_CLOSE:
2582	{
2583	SHCLOBJHANDLE hObj;
2584	rc = VbglR3ClipboardTransferObjCloseRecv(pCmdCtx, &hObj);
2585	if (RT_SUCCESS(rc))
2586	{
2587	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2588	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2589	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2590
2591	rc = ShClTransferObjClose(pTransfer, hObj);
2592
2593	/* Reply in any case. */
2594	int rc2 = VbglR3ClipboardTransferObjCloseReply(pCmdCtx, rc, hObj);
2595	AssertRC(rc2);
2596	}
2597
2598	break;
2599	}
2600
2601	case VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_READ:
2602	{
2603	SHCLOBJHANDLE hObj;
2604	uint32_t cbBuf;
2605	uint32_t fFlags;
2606	rc = VbglR3ClipboardTransferObjReadRecv(pCmdCtx, &hObj, &cbBuf, &fFlags);
2607	if (RT_SUCCESS(rc))
2608	{
2609	PSHCLTRANSFER pTransfer = ShClTransferCtxGetTransferById(pTransferCtx,
2610	VBOX_SHCL_CONTEXTID_GET_TRANSFER(pCmdCtx->idContext));
2611	AssertPtrBreakStmt(pTransfer, rc = VERR_NOT_FOUND);
2612
2613	AssertBreakStmt(pCmdCtx->Transfers.cbChunkSize, rc = VERR_INVALID_PARAMETER);
2614
2615	const uint32_t cbToRead = RT_MIN(cbBuf, pCmdCtx->Transfers.cbChunkSize);
2616
2617	LogFlowFunc(("hObj=%RU64, cbBuf=%RU32, fFlags=0x%x -> cbChunkSize=%RU32, cbToRead=%RU32\n",
2618	hObj, cbBuf, fFlags, pCmdCtx->Transfers.cbChunkSize, cbToRead));
2619
2620	void *pvBuf = RTMemAlloc(cbToRead);
2621	if (pvBuf)
2622	{
2623	uint32_t cbRead;
2624	rc = ShClTransferObjRead(pTransfer, hObj, pvBuf, cbToRead, fFlags, &cbRead);
2625	if (RT_SUCCESS(rc))
2626	rc = VbglR3ClipboardTransferObjWriteSend(pCmdCtx, hObj, pvBuf, cbRead, NULL /* pcbWritten */);
2627
2628	RTMemFree(pvBuf);
2629	}
2630	else
2631	rc = VERR_NO_MEMORY;
2632	}
2633
2634	break;
2635	}
2636
2637	default:
2638	{
2639	rc = VbglR3ClipboardEventGetNext(idMsg, cParms, pCmdCtx, pEvent);
2640	if (RT_FAILURE(rc))
2641	fErrorSent = true;
2642	break;
2643	}
2644	}
2645
2646	if ( !fErrorSent
2647	&& RT_FAILURE(rc))
2648	{
2649	/* Report error back to the host. */
2650	int rc2 = VbglR3ClipboardWriteError(pCmdCtx->idClient, rc);
2651	AssertRC(rc2);
2652	}
2653	}
2654	else
2655	{
2656	/*
2657	* This builds on what we did in VbglR3ClipboardMsgPeekWait, so
2658	* !HACK ALERT! cParms is the format flag or flags.
2659	*/
2660	rc = VINF_SUCCESS;
2661	switch (idMsg)
2662	{
2663	case VBOX_SHCL_HOST_MSG_FORMATS_REPORT:
2664	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_REPORT_FORMATS;
2665	pEvent->u.fReportedFormats = cParms;
2666	break;
2667
2668	case VBOX_SHCL_HOST_MSG_READ_DATA:
2669	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_READ_DATA;
2670	pEvent->u.fReadData = cParms;
2671	break;
2672
2673	case VBOX_SHCL_HOST_MSG_QUIT:
2674	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_QUIT;
2675	break;
2676
2677	default:
2678	AssertMsgFailed(("%u (%#x)\n", idMsg, idMsg));
2679	rc = VERR_NOT_SUPPORTED;
2680	break;
2681	}
2682	}
2683
2684	LogFlowFuncLeaveRC(rc);
2685	return rc;
2686	}
2687
2688	#endif /* VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS */
2689
2690	VBGLR3DECL(int) VbglR3ClipboardEventGetNext(uint32_t idMsg, uint32_t cParms, PVBGLR3SHCLCMDCTX pCtx, PVBGLR3CLIPBOARDEVENT pEvent)
2691	{
2692	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
2693	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
2694
2695	RT_NOREF(cParms);
2696
2697	int rc;
2698	if (!pCtx->fUseLegacyProtocol)
2699	{
2700	LogFunc(("Handling idMsg=%RU32 (%s)\n", idMsg, ShClHostMsgToStr(idMsg)));
2701	switch (idMsg)
2702	{
2703	case VBOX_SHCL_HOST_MSG_FORMATS_REPORT:
2704	{
2705	rc = vbglR3ClipboardFormatsReportRecv(pCtx, &pEvent->u.fReportedFormats);
2706	if (RT_SUCCESS(rc))
2707	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_REPORT_FORMATS;
2708	break;
2709	}
2710
2711	case VBOX_SHCL_HOST_MSG_READ_DATA_CID:
2712	{
2713	rc = vbglR3ClipboardFetchReadDataCid(pCtx, &pEvent->u.fReadData);
2714	if (RT_SUCCESS(rc))
2715	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_READ_DATA;
2716	break;
2717	}
2718
2719	case VBOX_SHCL_HOST_MSG_READ_DATA:
2720	{
2721	rc = vbglR3ClipboardFetchReadData(pCtx, &pEvent->u.fReadData);
2722	if (RT_SUCCESS(rc))
2723	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_READ_DATA;
2724	break;
2725	}
2726
2727	case VBOX_SHCL_HOST_MSG_QUIT:
2728	{
2729	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_QUIT;
2730	rc = VINF_SUCCESS;
2731	break;
2732	}
2733
2734	default:
2735	{
2736	/** @todo r=bird: BUGBUG - need a skip command here! */
2737	rc = VERR_NOT_SUPPORTED;
2738	break;
2739	}
2740	}
2741
2742	if (RT_SUCCESS(rc))
2743	{
2744	/* Copy over our command context to the event. */
2745	pEvent->cmdCtx = *pCtx;
2746	}
2747	else
2748	{
2749	/* Report error back to the host. */
2750	int rc2 = VbglR3ClipboardWriteError(pCtx->idClient, rc);
2751	AssertRC(rc2);
2752	}
2753	}
2754	else
2755	{
2756	/*
2757	* This builds on what we did in VbglR3ClipboardMsgPeekWait, so
2758	* !HACK ALERT! cParms is the format flag or flags.
2759	*/
2760	rc = VINF_SUCCESS;
2761	switch (idMsg)
2762	{
2763	case VBOX_SHCL_HOST_MSG_FORMATS_REPORT:
2764	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_REPORT_FORMATS;
2765	pEvent->u.fReportedFormats = cParms;
2766	break;
2767
2768	case VBOX_SHCL_HOST_MSG_READ_DATA:
2769	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_READ_DATA;
2770	pEvent->u.fReadData = cParms;
2771	break;
2772
2773	case VBOX_SHCL_HOST_MSG_QUIT:
2774	pEvent->enmType = VBGLR3CLIPBOARDEVENTTYPE_QUIT;
2775	break;
2776
2777	default:
2778	AssertMsgFailed(("%u (%#x)\n", idMsg, idMsg));
2779	rc = VERR_NOT_SUPPORTED;
2780	break;
2781	}
2782	pEvent->cmdCtx = *pCtx;
2783	}
2784
2785	LogFlowFuncLeaveRC(rc);
2786	return rc;
2787	}
2788
2789	/**
2790	* Frees (destroys) a formerly allocated Shared Clipboard event.
2791	*
2792	* @returns IPRT status code.
2793	* @param pEvent Event to free (destroy).
2794	*/
2795	VBGLR3DECL(void) VbglR3ClipboardEventFree(PVBGLR3CLIPBOARDEVENT pEvent)
2796	{
2797	if (!pEvent)
2798	return;
2799
2800	/* Some messages require additional cleanup. */
2801	switch (pEvent->enmType)
2802	{
2803	default:
2804	break;
2805	}
2806
2807	RTMemFree(pEvent);
2808	pEvent = NULL;
2809	}
2810
2811	/**
2812	* Reports (advertises) guest clipboard formats to the host.
2813	*
2814	* Legacy function, do not use anymore.
2815	*
2816	* @returns VBox status code.
2817	* @param idClient The client id returned by VbglR3ClipboardConnect().
2818	* @param fFormats The formats to report.
2819	*/
2820	VBGLR3DECL(int) VbglR3ClipboardReportFormats(HGCMCLIENTID idClient, uint32_t fFormats)
2821	{
2822	struct
2823	{
2824	VBGLIOCHGCMCALL Hdr;
2825	VBoxShClParmReportFormats Parms;
2826	} Msg;
2827
2828	VBGL_HGCM_HDR_INIT(&Msg.Hdr, idClient, VBOX_SHCL_GUEST_FN_REPORT_FORMATS, VBOX_SHCL_CPARMS_REPORT_FORMATS);
2829	VbglHGCMParmUInt32Set(&Msg.Parms.f32Formats, fFormats);
2830
2831	int rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
2832
2833	LogFlowFuncLeaveRC(rc);
2834	return rc;
2835	}
2836
2837	/**
2838	* Sends guest clipboard data to the host.
2839	*
2840	* Legacy function kept for compatibility, do not use anymore.
2841	*
2842	* This is usually called in reply to a VBOX_SHCL_HOST_MSG_READ_DATA message
2843	* from the host.
2844	*
2845	* @returns VBox status code.
2846	* @param idClient The client id returned by VbglR3ClipboardConnect().
2847	* @param fFormat The format of the data.
2848	* @param pvData Pointer to the data to send. Can be NULL if @a cbData
2849	* is zero.
2850	* @param cbData Number of bytes of data to send. Zero is valid.
2851	*/
2852	VBGLR3DECL(int) VbglR3ClipboardWriteData(HGCMCLIENTID idClient, uint32_t fFormat, void *pv, uint32_t cb)
2853	{
2854	LogFlowFuncEnter();
2855
2856	struct
2857	{
2858	VBGLIOCHGCMCALL Hdr;
2859	VBoxShClParmDataWriteOld Parms;
2860	} Msg;
2861
2862	VBGL_HGCM_HDR_INIT(&Msg.Hdr, idClient, VBOX_SHCL_GUEST_FN_DATA_WRITE, VBOX_SHCL_CPARMS_DATA_WRITE_OLD);
2863	VbglHGCMParmUInt32Set(&Msg.Parms.f32Format, fFormat);
2864	VbglHGCMParmPtrSet(&Msg.Parms.pData, pv, cb);
2865
2866	int rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
2867
2868	LogFlowFuncLeaveRC(rc);
2869	return rc;
2870	}
2871
2872	/**
2873	* Sends guest clipboard data to the host.
2874	*
2875	* This is usually called in reply to a VBOX_SHCL_HOST_MSG_READ_DATA message
2876	* from the host.
2877	*
2878	* @returns VBox status code.
2879	* @param pCtx The command context returned by VbglR3ClipboardConnectEx().
2880	* @param fFormat Clipboard format to send.
2881	* @param pvData Pointer to the data to send. Can be NULL if @a cbData
2882	* is zero.
2883	* @param cbData Number of bytes of data to send. Zero is valid.
2884	*/
2885	VBGLR3DECL(int) VbglR3ClipboardWriteDataEx(PVBGLR3SHCLCMDCTX pCtx, SHCLFORMAT fFormat, void *pvData, uint32_t cbData)
2886	{
2887	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
2888	AssertReturn(cbData == 0 \|\| RT_VALID_PTR(pvData), VERR_INVALID_PARAMETER);
2889
2890	LogFlowFunc(("fFormat=%#x pvData=%p cbData=%#x\n", fFormat, pvData, cbData));
2891
2892	int rc;
2893	if (pCtx->fUseLegacyProtocol)
2894	rc = VbglR3ClipboardWriteData(pCtx->idClient, fFormat, pvData, cbData);
2895	else
2896	{
2897	struct
2898	{
2899	VBGLIOCHGCMCALL Hdr;
2900	VBoxShClParmDataWrite Parms;
2901	} Msg;
2902
2903	VBGL_HGCM_HDR_INIT(&Msg.Hdr, pCtx->idClient, VBOX_SHCL_GUEST_FN_DATA_WRITE, VBOX_SHCL_CPARMS_DATA_WRITE);
2904	Msg.Parms.id64Context.SetUInt64(pCtx->idContext);
2905	Msg.Parms.f32Format.SetUInt32(fFormat);
2906	Msg.Parms.pData.SetPtr(pvData, cbData);
2907
2908	LogFlowFunc(("CID=%RU32\n", pCtx->idContext));
2909
2910	rc = VbglR3HGCMCall(&Msg.Hdr, sizeof(Msg));
2911	}
2912
2913	LogFlowFuncLeaveRC(rc);
2914	return rc;
2915	}
2916
2917	/**
2918	* Writes an error to the host.
2919	*
2920	* @returns IPRT status code.
2921	* @param idClient The client id returned by VbglR3ClipboardConnect().
2922	* @param rcErr Error (IPRT-style) to send.
2923	*/
2924	VBGLR3DECL(int) VbglR3ClipboardWriteError(HGCMCLIENTID idClient, int rcErr)
2925	{
2926	AssertReturn(idClient, VERR_INVALID_PARAMETER);
2927
2928	VBoxShClWriteErrorMsg Msg;
2929	VBGL_HGCM_HDR_INIT(&Msg.hdr, idClient, VBOX_SHCL_GUEST_FN_ERROR, VBOX_SHCL_CPARMS_ERROR);
2930
2931	/** @todo Context ID not used yet. */
2932	Msg.uContext.SetUInt64(0);
2933	Msg.rc.SetUInt32((uint32_t)rcErr); /* uint32_t vs. int. */
2934
2935	int rc = VbglR3HGCMCall(&Msg.hdr, sizeof(Msg));
2936
2937	if (RT_FAILURE(rc))
2938	LogFlowFunc(("Sending error %Rrc failed with rc=%Rrc\n", rcErr, rc));
2939	if (rc == VERR_NOT_SUPPORTED)
2940	rc = VINF_SUCCESS;
2941
2942	if (RT_FAILURE(rc))
2943	LogRel(("Shared Clipboard: Reporting error %Rrc to the host failed with %Rrc\n", rcErr, rc));
2944
2945	LogFlowFuncLeaveRC(rc);
2946	return rc;
2947	}
2948

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source: vbox/trunk/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibClipboard.cpp@ 100381

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