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| -rw-r--r-- | include/VBox/HostServices/VBoxClipboardSvc.h | 1220 |
1 files changed, 1220 insertions, 0 deletions
diff --git a/include/VBox/HostServices/VBoxClipboardSvc.h b/include/VBox/HostServices/VBoxClipboardSvc.h new file mode 100644 index 00000000..45bb954a --- /dev/null +++ b/include/VBox/HostServices/VBoxClipboardSvc.h @@ -0,0 +1,1220 @@ +/** @file + * Shared Clipboard - Common header for host service and guest clients. + * + * Protocol history notes (incomplete): + * + * - VirtualBox 6.1.0 betas: Started work on adding support for copying & + * pasting files and directories, refactoring the protocol in the process. + * - Adds guest/host feature flags. + * - Adds context IDs (via guest feature flags). + * - Borrowed the message handling from guest controls. + * - Adds a multitude of functions and messages for dealing with file & dir + * copying, most inte + * + * - VirtualBox x.x.x: Missing a lot of gradual improvements here. + * + * - VirtualBox 1.3.2 (r17182): Initial implementation, supporting text. + */ + +/* + * Copyright (C) 2006-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef VBOX_INCLUDED_HostServices_VBoxClipboardSvc_h +#define VBOX_INCLUDED_HostServices_VBoxClipboardSvc_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/VMMDevCoreTypes.h> +#include <VBox/VBoxGuestCoreTypes.h> +#include <VBox/hgcmsvc.h> + + +/** @name VBOX_SHCL_MODE_XXX - The Shared Clipboard modes of operation. + * @{ + */ +/** Shared Clipboard is disabled completely. */ +#define VBOX_SHCL_MODE_OFF 0 +/** Only transfers from host to the guest are possible. */ +#define VBOX_SHCL_MODE_HOST_TO_GUEST 1 +/** Only transfers from guest to the host are possible. */ +#define VBOX_SHCL_MODE_GUEST_TO_HOST 2 +/** Bidirectional transfers between guest and host are possible. */ +#define VBOX_SHCL_MODE_BIDIRECTIONAL 3 +/** @} */ + +/** @name VBOX_SHCL_TRANSFER_MODE_XXX - The Shared Clipboard file transfer mode (bit field). + * @{ + */ +/** Shared Clipboard file transfers are disabled. */ +#define VBOX_SHCL_TRANSFER_MODE_DISABLED UINT32_C(0) +/** Shared Clipboard file transfers are enabled. */ +#define VBOX_SHCL_TRANSFER_MODE_ENABLED RT_BIT(0) +/** Shared Clipboard file transfer mode valid mask. */ +#define VBOX_SHCL_TRANSFER_MODE_VALID_MASK UINT32_C(0x1) +/** @} */ + + +/** @name VBOX_SHCL_HOST_FN_XXX - The service functions which are callable by host. + * @note These are not sacred and can be modified at will as long as all host + * clients are updated accordingly (probably just Main). + * @{ + */ +/** Sets the current Shared Clipboard operation mode. */ +#define VBOX_SHCL_HOST_FN_SET_MODE 1 +/** Sets the current Shared Clipboard (file) transfers mode. + * Operates on the VBOX_SHCL_TRANSFERS_XXX defines. + * @since 6.1 */ +#define VBOX_SHCL_HOST_FN_SET_TRANSFER_MODE 2 +/** Run headless on the host, i.e. do not touch the host clipboard. */ +#define VBOX_SHCL_HOST_FN_SET_HEADLESS 3 + +/** Reports cancellation of the current operation to the guest. + * @since 6.1 - still a todo */ +#define VBOX_SHCL_HOST_FN_CANCEL 4 +/** Reports an error to the guest. + * @since 6.1 - still a todo */ +#define VBOX_SHCL_HOST_FN_ERROR 5 +/** @} */ + + +/** @name VBOX_SHCL_HOST_MSG_XXX - The host messages for the guest. + * @{ + */ +/** Returned only when the HGCM client session is closed (by different thread). + * + * This can require no futher host interaction since the session has been + * closed. + * + * @since 1.3.2 + */ +#define VBOX_SHCL_HOST_MSG_QUIT 1 +/** Request data for a specific format from the guest. + * + * Two parameters, first the 32-bit message ID followed by a 32-bit format bit + * (VBOX_SHCL_FMT_XXX). The guest will respond by issuing a + * VBOX_SHCL_GUEST_FN_DATA_WRITE. + * + * @note The host may sometimes incorrectly set more than one format bit, in + * which case it's up to the guest to pick which to write back. + * @since 1.3.2 + */ +#define VBOX_SHCL_HOST_MSG_READ_DATA 2 +/** Reports available clipboard format on the host to the guest. + * + * Two parameters, first the 32-bit message ID followed by a 32-bit format mask + * containing zero or more VBOX_SHCL_FMT_XXX flags. The guest is not require to + * respond to the host when receiving this message. + * + * @since 1.3.2 + */ +#define VBOX_SHCL_HOST_MSG_FORMATS_REPORT 3 +/** Message PEEK or GET operation was canceled, try again. + * + * This is returned by VBOX_SHCL_GUEST_FN_MSG_PEEK_WAIT and + * VBOX_SHCL_GUEST_FN_MSG_OLD_GET_WAIT in response to the guest calling + * VBOX_SHCL_GUEST_FN_MSG_CANCEL. The 2nd parameter is set to zero (be it + * thought of as a parameter count or a format mask). + * + * @since 6.1.0 + */ +#define VBOX_SHCL_HOST_MSG_CANCELED 4 + +/** Request data for a specific format from the guest with context ID. + * + * This is send instead of the VBOX_SHCL_HOST_MSG_READ_DATA message to guest + * that advertises VBOX_SHCL_GF_0_CONTEXT_ID. The first parameter is a 64-bit + * context ID which is to be used when issuing VBOX_SHCL_GUEST_F_DATA_WRITE, and + * the second parameter is a 32-bit format bit (VBOX_SHCL_FMT_XXX). The guest + * will respond by issuing a VBOX_SHCL_GUEST_F_DATA_WRITE. + * + * @note The host may sometimes incorrectly set more than one format bit, in + * which case it's up to the guest to pick which to write back. + * @since 6.1.2 + */ +#define VBOX_SHCL_HOST_MSG_READ_DATA_CID 5 + +/** Sends a transfer status to the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_STATUS 50 +/** Reads the root list header from the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_HDR_READ 51 +/** Writes the root list header to the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_HDR_WRITE 52 +/** Reads a root list entry from the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_ENTRY_READ 53 +/** Writes a root list entry to the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_ROOT_LIST_ENTRY_WRITE 54 +/** Open a transfer list on the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_LIST_OPEN 55 +/** Closes a formerly opened transfer list on the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_LIST_CLOSE 56 +/** Reads a list header from the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_LIST_HDR_READ 57 +/** Writes a list header to the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_LIST_HDR_WRITE 58 +/** Reads a list entry from the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_LIST_ENTRY_READ 59 +/** Writes a list entry to the guest. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_LIST_ENTRY_WRITE 60 +/** Open a transfer object on the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_OPEN 61 +/** Closes a formerly opened transfer object on the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_CLOSE 62 +/** Reads from an object on the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_READ 63 +/** Writes to an object on the guest side. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_OBJ_WRITE 64 +/** Indicates that the host has canceled a transfer. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_CANCEL 65 +/** Indicates that the an unrecoverable error on the host occurred. + * @since 6.1.? + */ +#define VBOX_SHCL_HOST_MSG_TRANSFER_ERROR 66 +/** @} */ + + +/** @name VBOX_SHCL_GUEST_FN_XXX - The service functions which are called by guest. + * @{ + */ +/** Calls the host and waits (blocking) for an host event VBOX_SHCL_HOST_MSG_XXX. + * + * @deprecated Replaced by VBOX_SHCL_GUEST_FN_MSG_PEEK_WAIT, + * VBOX_SHCL_GUEST_FN_MSG_GET, VBOX_SHCL_GUEST_FN_MSG_CANCEL. + * @since 1.3.2 + */ +#define VBOX_SHCL_GUEST_FN_MSG_OLD_GET_WAIT 1 +/** Sends a list of available formats to the host. + * + * This function takes a single parameter, a 32-bit set of formats + * (VBOX_SHCL_FMT_XXX), this can be zero if the clipboard is empty or previously + * reported formats are no longer avaible (logout, shutdown, whatever). + * + * There was a period during 6.1 development where it would take three + * parameters, a 64-bit context ID preceeded the formats and a 32-bit MBZ flags + * parameter was appended. This is still accepted, though deprecated. + * + * @returns May return informational statuses indicating partial success, just + * ignore it. + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @retval VERR_NOT_SUPPORTED if all the formats are unsupported, host + * clipboard will be empty. + * @since 1.3.2 + */ +#define VBOX_SHCL_GUEST_FN_REPORT_FORMATS 2 +/** Reads data in specified format from the host. + * + * This function takes three parameters, a 32-bit format bit + * (VBOX_SHCL_FMT_XXX), a buffer and 32-bit number of bytes read (output). + * + * There was a period during 6.1 development where it would take five parameters + * when VBOX_SHCL_GF_0_CONTEXT_ID was reported by the guest. A 64-bit context + * ID (ignored as purpose undefined), a 32-bit unused flag (MBZ), then the + * 32-bit format bits, number of bytes read (output), and the buffer. This + * format is still accepted. + * + * @retval VINF_SUCCESS on success. + * @retval VINF_BUFFER_OVERLFLOW (VBox >= 6.1 only) if not enough buffer space + * has been given to retrieve the actual data, no data actually copied. + * The call then must be repeated with a buffer size returned from the + * host in cbData. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 1.3.2 + */ +#define VBOX_SHCL_GUEST_FN_DATA_READ 3 +/** Writes requested data to the host. + * + * This function takes either 2 or 3 parameters. The last two parameters are a + * 32-bit format bit (VBOX_SHCL_FMT_XXX) and a data buffer holding the related + * data. The three parameter variant have a context ID first, which shall be a + * copy of the ID in the data request message. + * + * There was a period during 6.1 development where there would be a 5 parameter + * version of this, inserting an unused flags parameter between the context ID + * and the format bit, as well as a 32-bit data buffer size repate between the + * format bit and the data buffer. This format is still accepted, though + * deprecated. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @retval VERR_INVALID_CONTEXT if the context ID didn't match up. + * @since 1.3.2 + */ +#define VBOX_SHCL_GUEST_FN_DATA_WRITE 4 + +/** This is a left-over from the 6.1 dev cycle and will always fail. + * + * It used to take three 32-bit parameters, only one of which was actually used. + * + * It was replaced by VBOX_SHCL_GUEST_FN_REPORT_FEATURES and + * VBOX_SHCL_GUEST_FN_NEGOTIATE_CHUNK_SIZE. + * + * @retval VERR_NOT_IMPLEMENTED + * @since 6.1 + */ +#define VBOX_SHCL_GUEST_FN_CONNECT 5 +/** Report guest side feature flags and retrieve the host ones. + * + * Two 64-bit parameters are passed in from the guest with the guest features + * (VBOX_SHCL_GF_XXX), the host replies by replacing the parameter values with + * the host ones (VBOX_SHCL_HF_XXX). + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.0 + */ +#define VBOX_SHCL_GUEST_FN_REPORT_FEATURES 6 +/** Query the host ones feature masks. + * + * That way the guest (client) can get hold of the features from the host. + * Again, it is prudent to set the 127 bit and observe it being cleared on + * success, as older hosts might return success without doing anything. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.0 + */ +#define VBOX_SHCL_GUEST_FN_QUERY_FEATURES 7 +/** Peeks at the next message, returning immediately. + * + * Returns two 32-bit parameters, first is the message ID and the second the + * parameter count. May optionally return additional 32-bit parameters with the + * sizes of respective message parameters. To distinguish buffer sizes from + * integer parameters, the latter gets their sizes inverted (uint32_t is ~4U, + * uint64_t is ~8U). + * + * Does also support the VM restore checking as in VBOX_SHCL_GUEST_FN_MSG_PEEK_WAIT + * (64-bit param \# 0), see documentation there. + * + * @retval VINF_SUCCESS if a message was pending and is being returned. + * @retval VERR_TRY_AGAIN if no message pending. + * @retval VERR_VM_RESTORED if first parameter is a non-zero 64-bit value that + * does not match VbglR3GetSessionId() any more. The new value is + * returned. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.0 + */ +#define VBOX_SHCL_GUEST_FN_MSG_PEEK_NOWAIT 8 +/** Peeks at the next message, waiting for one to arrive. + * + * Returns two 32-bit parameters, first is the message ID and the second the + * parameter count. May optionally return additional 32-bit parameters with the + * sizes of respective message parameters. To distinguish buffer sizes from + * integer parameters, the latter gets their sizes inverted (uint32_t is ~4U, + * uint64_t is ~8U). + * + * To facilitate VM restore checking, the first parameter can be a 64-bit + * integer holding the VbglR3GetSessionId() value the guest knowns. The + * function will then check this before going to sleep and return + * VERR_VM_RESTORED if it doesn't match, same thing happens when the VM is + * restored. + * + * @retval VINF_SUCCESS if info about an pending message is being returned. + * @retval VINF_TRY_AGAIN and message set to VBOX_SHCL_HOST_MSG_CANCELED if + * cancelled by VBOX_SHCL_GUEST_FN_MSG_CANCEL. + * @retval VERR_RESOURCE_BUSY if another thread already made a waiting call. + * @retval VERR_VM_RESTORED if first parameter is a non-zero 64-bit value that + * does not match VbglR3GetSessionId() any more. The new value is + * returned. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @note This replaces VBOX_SHCL_GUEST_FN_MSG_OLD_GET_WAIT. + * @since 6.1.0 + */ +#define VBOX_SHCL_GUEST_FN_MSG_PEEK_WAIT 9 +/** Gets the next message, returning immediately. + * + * All parameters are specific to the message being retrieved, however if the + * first one is an integer value it shall be an input parameter holding the + * ID of the message being retrieved. While it would be nice to add a separate + * parameter for this purpose, this is done so because the code was liften from + * Guest Controls which had backwards compatibilities to consider and we just + * kept it like that. + * + * @retval VINF_SUCCESS if message retrieved and removed from the pending queue. + * @retval VERR_TRY_AGAIN if no message pending. + * @retval VERR_MISMATCH if the incoming message ID does not match the pending. + * @retval VERR_BUFFER_OVERFLOW if a parmeter buffer is too small. The buffer + * size was updated to reflect the required size. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @note This replaces VBOX_SHCL_GUEST_FN_MSG_OLD_GET_WAIT. + * @since 6.1.0 + */ +#define VBOX_SHCL_GUEST_FN_MSG_GET 10 +/** Cancels pending calls for this client session. + * + * This should be used if a VBOX_SHCL_GUEST_FN__MSG_PEEK_WAIT or + * VBOX_SHCL_GUEST_FN_MSG_OLD_GET_WAIT call gets interrupted on the client end, + * so as to prevent being rebuffed with VERR_RESOURCE_BUSY when restarting the + * call. + * + * @retval VINF_SUCCESS if cancelled any calls. + * @retval VWRN_NOT_FOUND if no callers. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @since 6.1.0 + */ +#define VBOX_SHCL_GUEST_FN_MSG_CANCEL 26 + +/** Replies to a function from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_REPLY 11 +/** Gets the root list header from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_ROOT_LIST_HDR_READ 12 +/** Sends the root list header to the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_ROOT_LIST_HDR_WRITE 13 +/** Gets a root list root entry from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_ROOT_LIST_ENTRY_READ 14 +/** Sends a root list root entry to the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_ROOT_LIST_ENTRY_WRITE 15 +/** Opens / gets a list handle from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_LIST_OPEN 16 +/** Closes a list handle from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_LIST_CLOSE 17 +/** Reads a list header from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_LIST_HDR_READ 18 +/** Writes a list header to the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_LIST_HDR_WRITE 19 +/** Reads a list entry from the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_LIST_ENTRY_READ 20 +/** Sends a list entry to the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_LIST_ENTRY_WRITE 21 +/** Opens an object on the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_OBJ_OPEN 22 +/** Closes an object on the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_OBJ_CLOSE 23 +/** Reads from an object on the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_OBJ_READ 24 +/** Writes to an object on the host. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1.x + */ +#define VBOX_SHCL_GUEST_FN_OBJ_WRITE 25 +/** Reports an error to the host. + * + * @todo r=bird: Smells like GUEST_MSG_SKIP + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @since 6.1 + */ +#define VBOX_SHCL_GUEST_FN_ERROR 27 + +/** For negotiating a chunk size between the guest and host. + * + * Takes two 32-bit parameters both being byte counts, the first one gives the + * maximum chunk size the guest can handle and the second the preferred choice + * of the guest. Upon return, the host will have updated both of them to + * reflect the maximum and default chunk sizes this client connect. The guest + * may set the 2nd value to zero and let the host choose. + * + * @retval VINF_SUCCESS on success. + * @retval VERR_INVALID_CLIENT_ID + * @retval VERR_WRONG_PARAMETER_COUNT + * @retval VERR_WRONG_PARAMETER_TYPE + * @retval VERR_INVALID_PARAMETER if the 2nd parameter is larger than the + * first one + * @since 6.1 + */ +#define VBOX_SHCL_GUEST_FN_NEGOTIATE_CHUNK_SIZE 28 + +/** The last function number (used for validation/sanity). */ +#define VBOX_SHCL_GUEST_FN_LAST VBOX_SHCL_GUEST_FN_NEGOTIATE_CHUNK_SIZE +/** @} */ + + +/** Maximum chunk size for a single data transfer. */ +#define VBOX_SHCL_MAX_CHUNK_SIZE VMMDEV_MAX_HGCM_DATA_SIZE - _4K +/** Default chunk size for a single data transfer. */ +#define VBOX_SHCL_DEFAULT_CHUNK_SIZE RT_MIN(_64K, VBOX_SHCL_MAX_CHUNK_SIZE); + + +/** @name VBOX_SHCL_GF_XXX - Guest features. + * @sa VBOX_SHCL_GUEST_FN_REPORT_FEATURES + * @{ */ +/** No flags set. */ +#define VBOX_SHCL_GF_NONE 0 +/** The guest can handle context IDs where applicable. */ +#define VBOX_SHCL_GF_0_CONTEXT_ID RT_BIT_64(0) +/** The guest can copy & paste files and directories. + * @since 6.x */ +#define VBOX_SHCL_GF_0_TRANSFERS RT_BIT_64(1) +/** The guest supports a (guest OS-)native frontend for showing and handling file transfers. + * If not set, the host will show a modal progress dialog instead and transferring file to + * a guest-specific temporary location first. + * Currently only supported for Windows guests (integrated into Windows Explorer via IDataObject). */ +#define VBOX_SHCL_GF_0_TRANSFERS_FRONTEND RT_BIT_64(2) +/** Bit that must be set in the 2nd parameter, will be cleared if the host reponds + * correctly (old hosts might not). */ +#define VBOX_SHCL_GF_1_MUST_BE_ONE RT_BIT_64(63) +/** @} */ + +/** @name VBOX_GUESTCTRL_HF_XXX - Host features. + * @sa VBOX_SHCL_GUEST_FN_REPORT_FEATURES + * @{ */ +/** No flags set. */ +#define VBOX_SHCL_HF_NONE 0 +/** The host can handle context IDs where applicable as well as the new + * message handling functions. */ +#define VBOX_SHCL_HF_0_CONTEXT_ID RT_BIT_64(0) +/** The host can copy & paste files and directories. + * This includes messages like + * @since 6.1.? */ +#define VBOX_SHCL_HF_0_TRANSFERS RT_BIT_64(1) +/** @} */ + +/** @name Context ID related macros and limits + * @{ */ +/** + * Creates a context ID out of a client ID, a transfer ID and an event ID (count). + */ +#define VBOX_SHCL_CONTEXTID_MAKE(a_idSession, a_idTransfer, a_idEvent) \ + ( ((uint64_t)((a_idSession) & 0xffff) << 48) \ + | ((uint64_t)((a_idTransfer) & 0xffff) << 32) \ + | ((uint32_t) (a_idEvent)) \ + ) +/** Creates a context ID out of a session ID. */ +#define VBOX_SHCL_CONTEXTID_MAKE_SESSION(a_idSession) VBOX_SHCL_CONTEXTID_MAKE(a_idSession, 0, 0) +/** Gets the session ID out of a context ID. */ +#define VBOX_SHCL_CONTEXTID_GET_SESSION(a_idContext) ( (uint16_t)(((a_idContext) >> 48) & UINT16_MAX) ) +/** Gets the transfer ID out of a context ID. */ +#define VBOX_SHCL_CONTEXTID_GET_TRANSFER(a_idContext) ( (uint16_t)(((a_idContext) >> 32) & UINT16_MAX) ) +/** Gets the transfer event out of a context ID. */ +#define VBOX_SHCL_CONTEXTID_GET_EVENT(a_idContext) ( (uint32_t)( (a_idContext) & UINT32_MAX) ) + +/** Maximum number of concurrent Shared Clipboard client sessions a VM can have. */ +#define VBOX_SHCL_MAX_SESSIONS (UINT16_MAX - 1) +/** Maximum number of concurrent Shared Clipboard transfers a single client can have. */ +#define VBOX_SHCL_MAX_TRANSFERS (UINT16_MAX - 1) +/** Maximum number of events a single Shared Clipboard transfer can have. */ +#define VBOX_SHCL_MAX_EVENTS (UINT32_MAX - 1) +/** @} */ + + +/* + * HGCM parameter structures. + */ +/** @todo r=bird: These structures are mostly pointless, as they're only + * ever used by the VbglR3 part. The host service does not use these + * structures for decoding guest requests, instead it's all hardcoded. */ +#pragma pack(1) +/** + * Waits (blocking) for a new host message to arrive. + * Deprecated; do not use anymore. + * Kept for maintaining compatibility with older Guest Additions. + */ +typedef struct _VBoxShClGetHostMsgOld +{ + VBGLIOCHGCMCALL hdr; + + /** uint32_t, out: Host message type. */ + HGCMFunctionParameter msg; + /** uint32_t, out: VBOX_SHCL_FMT_*, depends on the 'msg'. + * r=andy This actual can have *different* meanings, depending on the host message type. */ + HGCMFunctionParameter formats; /* OUT uint32_t */ +} VBoxShClGetHostMsgOld; + +#define VBOX_SHCL_CPARMS_GET_HOST_MSG_OLD 2 + +/** @name VBOX_SHCL_GUEST_FN_REPORT_FORMATS + * @{ */ +/** VBOX_SHCL_GUEST_FN_REPORT_FORMATS parameters. */ +typedef struct VBoxShClParmReportFormats +{ + /** uint32_t, int: Zero or more VBOX_SHCL_FMT_XXX bits. */ + HGCMFunctionParameter f32Formats; +} VBoxShClParmReportFormats; + +#define VBOX_SHCL_CPARMS_REPORT_FORMATS 1 /**< The parameter count for VBOX_SHCL_GUEST_FN_REPORT_FORMATS. */ +#define VBOX_SHCL_CPARMS_REPORT_FORMATS_61B 3 /**< The 6.1 dev cycle variant, see VBOX_SHCL_GUEST_FN_REPORT_FORMATS. */ +/** @} */ + +/** @name VBOX_SHCL_GUEST_FN_DATA_READ + * @{ */ +/** VBOX_SHCL_GUEST_FN_DATA_READ parameters. */ +typedef struct VBoxShClParmDataRead +{ + /** uint32_t, in: Requested format (VBOX_SHCL_FMT_XXX). */ + HGCMFunctionParameter f32Format; + /** ptr, out: The data buffer to put the data in on success. */ + HGCMFunctionParameter pData; + /** uint32_t, out: Size of returned data, if larger than the buffer, then no + * data was actually transferred and the guest must repeat the call. */ + HGCMFunctionParameter cb32Needed; +} VBoxShClParmDataRead; + +#define VBOX_SHCL_CPARMS_DATA_READ 3 /**< The parameter count for VBOX_SHCL_GUEST_FN_DATA_READ. */ +#define VBOX_SHCL_CPARMS_DATA_READ_61B 5 /**< The 6.1 dev cycle variant, see VBOX_SHCL_GUEST_FN_DATA_READ. */ +/** @} */ + +/** @name + * @{ */ + +/** VBOX_SHCL_GUEST_FN_DATA_WRITE parameters. */ +typedef struct VBoxShClParmDataWrite +{ + /** uint64_t, in: Context ID from VBOX_SHCL_HOST_MSG_READ_DATA. */ + HGCMFunctionParameter id64Context; + /** uint32_t, in: The data format (VBOX_SHCL_FMT_XXX). */ + HGCMFunctionParameter f32Format; + /** ptr, in: The data. */ + HGCMFunctionParameter pData; +} VBoxShClParmDataWrite; + +/** Old VBOX_SHCL_GUEST_FN_DATA_WRITE parameters. */ +typedef struct VBoxShClParmDataWriteOld +{ + /** uint32_t, in: The data format (VBOX_SHCL_FMT_XXX). */ + HGCMFunctionParameter f32Format; + /** ptr, in: The data. */ + HGCMFunctionParameter pData; +} VBoxShClParmDataWriteOld; + +#define VBOX_SHCL_CPARMS_DATA_WRITE 3 /**< The variant used when VBOX_SHCL_GF_0_CONTEXT_ID is reported. */ +#define VBOX_SHCL_CPARMS_DATA_WRITE_OLD 2 /**< The variant used when VBOX_SHCL_GF_0_CONTEXT_ID isn't reported. */ +#define VBOX_SHCL_CPARMS_DATA_WRITE_61B 5 /**< The 6.1 dev cycle variant, see VBOX_SHCL_GUEST_FN_DATA_WRITE. */ +/** @} */ + +/** + * Reports a transfer status. + */ +typedef struct _VBoxShClTransferStatusMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, out: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, out: Direction of transfer; of type SHCLTRANSFERDIR_. */ + HGCMFunctionParameter enmDir; + /** uint32_t, out: Status to report; of type SHCLTRANSFERSTATUS_. */ + HGCMFunctionParameter enmStatus; + /** uint32_t, out: Result code to report. Optional. */ + HGCMFunctionParameter rc; + /** uint32_t, out: Reporting flags. Currently unused and must be 0. */ + HGCMFunctionParameter fFlags; +} VBoxShClTransferStatusMsg; + +#define VBOX_SHCL_CPARMS_TRANSFER_STATUS 5 + +/** + * Asks the host for the next command to process, along + * with the needed amount of parameters and an optional blocking + * flag. + * + * Used by: VBOX_SHCL_GUEST_FN_GET_HOST_MSG + * + */ +typedef struct _VBoxShClGetHostMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint32_t, out: Message ID. */ + HGCMFunctionParameter uMsg; + /** uint32_t, out: Number of parameters the message needs. */ + HGCMFunctionParameter cParms; + /** uint32_t, in: Whether or not to block (wait) for a new message to arrive. */ + HGCMFunctionParameter fBlock; +} VBoxShClPeekMsg; + +#define VBOX_SHCL_CPARMS_GET_HOST_MSG 3 + +/** No listing flags specified. */ +#define VBOX_SHCL_LIST_FLAG_NONE 0 +/** Only returns one entry per read. */ +#define VBOX_SHCL_LIST_FLAG_RETURN_ONE RT_BIT(0) +/** Restarts reading a list from the beginning. */ +#define VBOX_SHCL_LIST_FLAG_RESTART RT_BIT(1) + +#define VBOX_SHCL_LISTHDR_FLAG_NONE 0 + +/** No additional information provided. */ +#define VBOX_SHCL_INFO_FLAG_NONE 0 +/** Get object information of type SHCLFSOBJINFO. */ +#define VBOX_SHCL_INFO_FLAG_FSOBJINFO RT_BIT(0) + +/** + * Status message for lists and objects. + */ +typedef struct _VBoxShClStatusMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, in: Transfer status of type SHCLTRANSFERSTATUS. */ + HGCMFunctionParameter uStatus; + /** pointer, in: Optional payload of this status, based on the status type. */ + HGCMFunctionParameter pvPayload; +} VBoxShClStatusMsg; + +#define VBOX_SHCL_CPARMS_STATUS 3 + +/** Invalid message type, do not use. */ +#define VBOX_SHCL_REPLYMSGTYPE_INVALID 0 +/** Replies a transfer status. */ +#define VBOX_SHCL_REPLYMSGTYPE_TRANSFER_STATUS 1 +/** Replies a list open status. */ +#define VBOX_SHCL_REPLYMSGTYPE_LIST_OPEN 2 +/** Replies a list close status. */ +#define VBOX_SHCL_REPLYMSGTYPE_LIST_CLOSE 3 +/** Replies an object open status. */ +#define VBOX_SHCL_REPLYMSGTYPE_OBJ_OPEN 4 +/** Replies an object close status. */ +#define VBOX_SHCL_REPLYMSGTYPE_OBJ_CLOSE 5 + +/** + * Generic reply message. + */ +typedef struct _VBoxShClReplyMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, out: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, out: Message type of type VBOX_SHCL_REPLYMSGTYPE_XXX. */ + HGCMFunctionParameter enmType; + /** uint32_t, out: IPRT result of overall operation. */ + HGCMFunctionParameter rc; + /** pointer, out: Optional payload of this reply, based on the message type. */ + HGCMFunctionParameter pvPayload; + union + { + struct + { + HGCMFunctionParameter enmStatus; + } TransferStatus; + struct + { + HGCMFunctionParameter uHandle; + } ListOpen; + struct + { + HGCMFunctionParameter uHandle; + } ObjOpen; + struct + { + HGCMFunctionParameter uHandle; + } ObjClose; + } u; +} VBoxShClReplyMsg; + +/** Minimum parameters (HGCM function parameters minus the union) a reply message must have. */ +#define VBOX_SHCL_CPARMS_REPLY_MIN 4 + +/** + * Structure for keeping root list message parameters. + */ +typedef struct _VBoxShClRootListParms +{ + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, in: Roots listing flags; unused at the moment. */ + HGCMFunctionParameter fRoots; +} VBoxShClRootListParms; + +#define VBOX_SHCL_CPARMS_ROOT_LIST 2 + +/** + * Requests to read the root list header. + */ +typedef struct _VBoxShClRootListReadReqMsg +{ + VBGLIOCHGCMCALL hdr; + + VBoxShClRootListParms ReqParms; +} VBoxShClRootListReadReqMsg; + +#define VBOX_SHCL_CPARMS_ROOT_LIST_HDR_READ_REQ VBOX_SHCL_CPARMS_ROOT_LIST + +/** + * Reads / Writes a root list header. + */ +typedef struct _VBoxShClRootListHdrMsg +{ + VBGLIOCHGCMCALL hdr; + + VBoxShClRootListParms ReqParms; + /** uint64_t, in/out: Number of total root list entries. */ + HGCMFunctionParameter cRoots; +} VBoxShClRootListHdrMsg; + +#define VBOX_SHCL_CPARMS_ROOT_LIST_HDR_READ VBOX_SHCL_CPARMS_ROOT_LIST + 1 +#define VBOX_SHCL_CPARMS_ROOT_LIST_HDR_WRITE VBOX_SHCL_CPARMS_ROOT_LIST + 1 + +/** + * Structure for keeping list entry message parameters. + */ +typedef struct _VBoxShClRootListEntryParms +{ + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, in: VBOX_SHCL_INFO_FLAG_XXX. */ + HGCMFunctionParameter fInfo; + /** uint32_t, in: Index of root list entry to get (zero-based). */ + HGCMFunctionParameter uIndex; +} VBoxShClRootListEntryParms; + +#define VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY 3 + +/** + * Request to read a list root entry. + */ +typedef struct _VBoxShClRootListEntryReadReqMsg +{ + VBGLIOCHGCMCALL hdr; + + /** in: Request parameters. */ + VBoxShClRootListEntryParms Parms; +} VBoxShClRootListEntryReadReqMsg; + +#define VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY_READ_REQ VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY + +/** + * Reads / Writes a root list entry. + */ +typedef struct _VBoxShClRootListEntryMsg +{ + VBGLIOCHGCMCALL hdr; + + /** in/out: Request parameters. */ + VBoxShClRootListEntryParms Parms; + /** pointer, in/out: Entry name. */ + HGCMFunctionParameter szName; + /** uint32_t, out: Bytes to be used for information/How many bytes were used. */ + HGCMFunctionParameter cbInfo; + /** pointer, in/out: Information to be set/get (SHCLFSOBJINFO only currently). + * Do not forget to set the SHCLFSOBJINFO::Attr::enmAdditional for Get operation as well. */ + HGCMFunctionParameter pvInfo; +} VBoxShClRootListEntryMsg; + +#define VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY_READ VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY + 3 +#define VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY_WRITE VBOX_SHCL_CPARMS_ROOT_LIST_ENTRY + 3 + +/** + * Opens a list. + */ +typedef struct _VBoxShClListOpenMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, in: Listing flags (see VBOX_SHCL_LIST_FLAG_XXX). */ + HGCMFunctionParameter fList; + /** pointer, in: Filter string. */ + HGCMFunctionParameter pvFilter; + /** pointer, in: Listing poth. If empty or NULL the listing's root path will be opened. */ + HGCMFunctionParameter pvPath; + /** uint64_t, out: List handle. */ + HGCMFunctionParameter uHandle; +} VBoxShClListOpenMsg; + +#define VBOX_SHCL_CPARMS_LIST_OPEN 5 + +/** + * Closes a list. + */ +typedef struct _VBoxShClListCloseMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in/out: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, in: List handle. */ + HGCMFunctionParameter uHandle; +} VBoxShClListCloseMsg; + +#define VBOX_SHCL_CPARMS_LIST_CLOSE 2 + +typedef struct _VBoxShClListHdrReqParms +{ + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, in: List handle. */ + HGCMFunctionParameter uHandle; + /** uint32_t, in: Flags of type VBOX_SHCL_LISTHDR_FLAG_XXX. */ + HGCMFunctionParameter fFlags; +} VBoxShClListHdrReqParms; + +#define VBOX_SHCL_CPARMS_LIST_HDR_REQ 3 + +/** + * Request to read a list header. + */ +typedef struct _VBoxShClListHdrReadReqMsg +{ + VBGLIOCHGCMCALL hdr; + + VBoxShClListHdrReqParms ReqParms; +} VBoxShClListHdrReadReqMsg; + +#define VBOX_SHCL_CPARMS_LIST_HDR_READ_REQ VBOX_SHCL_CPARMS_LIST_HDR_REQ + +/** + * Reads / Writes a list header. + */ +typedef struct _VBoxShClListHdrMsg +{ + VBGLIOCHGCMCALL hdr; + + VBoxShClListHdrReqParms ReqParms; + /** uint32_t, in/out: Feature flags (see VBOX_SHCL_FEATURE_FLAG_XXX). */ + HGCMFunctionParameter fFeatures; + /** uint64_t, in/out: Number of total objects to transfer. */ + HGCMFunctionParameter cTotalObjects; + /** uint64_t, in/out: Number of total bytes to transfer. */ + HGCMFunctionParameter cbTotalSize; +} VBoxShClListHdrMsg; + +#define VBOX_SHCL_CPARMS_LIST_HDR VBOX_SHCL_CPARMS_LIST_HDR_REQ + 3 + +typedef struct _VBoxShClListEntryReqParms +{ + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, in: List handle. */ + HGCMFunctionParameter uHandle; + /** uint32_t, in: VBOX_SHCL_INFO_FLAG_XXX. */ + HGCMFunctionParameter fInfo; +} VBoxShClListEntryReqParms; + +#define VBOX_SHCL_CPARMS_LIST_ENTRY_REQ 3 + +/** + * Request to read a list entry. + */ +typedef struct _VBoxShClListEntryReadReqMsg +{ + VBGLIOCHGCMCALL hdr; + + VBoxShClListEntryReqParms ReqParms; +} VBoxShClListEntryReadReqMsg; + +#define VBOX_SHCL_CPARMS_LIST_ENTRY_READ VBOX_SHCL_CPARMS_LIST_ENTRY_REQ + +/** + * Reads / Writes a list entry. + */ +typedef struct _VBoxShClListEntryMsg +{ + VBGLIOCHGCMCALL hdr; + + /** in/out: Request parameters. */ + VBoxShClListEntryReqParms ReqParms; + /** pointer, in/out: Entry name. */ + HGCMFunctionParameter szName; + /** uint32_t, out: Bytes to be used for information/How many bytes were used. */ + HGCMFunctionParameter cbInfo; + /** pointer, in/out: Information to be set/get (SHCLFSOBJINFO only currently). + * Do not forget to set the SHCLFSOBJINFO::Attr::enmAdditional for Get operation as well. */ + HGCMFunctionParameter pvInfo; +} VBoxShClListEntryMsg; + +#define VBOX_SHCL_CPARMS_LIST_ENTRY VBOX_SHCL_CPARMS_LIST_ENTRY_REQ + 3 + +/** + * Opens a Shared Clipboard object. + */ +typedef struct _VBoxShClObjOpenMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in/out: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, out: Object handle. */ + HGCMFunctionParameter uHandle; + /** pointer, in: Absoulte path of object to open/create. */ + HGCMFunctionParameter szPath; + /** uint32_t in: Open / Create flags of type SHCL_OBJ_CF_. */ + HGCMFunctionParameter fCreate; +} VBoxShClObjOpenMsg; + +#define VBOX_SHCL_CPARMS_OBJ_OPEN 4 + +/** + * Closes a Shared Clipboard object. + */ +typedef struct _VBoxShClObjCloseMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in/out: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, in: SHCLOBJHANDLE of object to close. */ + HGCMFunctionParameter uHandle; +} VBoxShClObjCloseMsg; + +#define VBOX_SHCL_CPARMS_OBJ_CLOSE 2 + +/** + * Structure for keeping read parameters of a Shared Clipboard object. + */ +typedef struct _VBoxShClObjReadReqParms +{ + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, in: SHCLOBJHANDLE of object to write to. */ + HGCMFunctionParameter uHandle; + /** uint32_t, in: How many bytes to read. */ + HGCMFunctionParameter cbToRead; + /** uint32_t, in: Read flags. Currently unused and must be 0. */ + HGCMFunctionParameter fRead; +} VBoxShClObjReadReqParms; + +/** + * Reads from a Shared Clipboard object. + */ +typedef struct _VBoxShClObjReadReqMsg +{ + VBGLIOCHGCMCALL hdr; + + VBoxShClObjReadReqParms ReqParms; +} VBoxShClObjReadReqMsg; + +#define VBOX_SHCL_CPARMS_OBJ_READ_REQ 4 + +/** + * Reads / writes data of / to an object. + * + * Used by: + * VBOX_SHCL_FN_OBJ_READ + * VBOX_SHCL_FN_OBJ_WRITE + */ +typedef struct _VBoxShClObjReadWriteMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in/out: Context ID. */ + HGCMFunctionParameter uContext; + /** uint64_t, in/out: SHCLOBJHANDLE of object to write to. */ + HGCMFunctionParameter uHandle; + /** uint32_t, out: Size (in bytes) read/written. */ + HGCMFunctionParameter cbData; + /** pointer, in/out: Current data chunk. */ + HGCMFunctionParameter pvData; + /** uint32_t, in/out: Size (in bytes) of current data chunk checksum. */ + HGCMFunctionParameter cbChecksum; + /** pointer, in/out: Checksum of data block, based on the checksum + * type in the data header. Optional. */ + HGCMFunctionParameter pvChecksum; +} VBoxShClObjReadWriteMsg; + +#define VBOX_SHCL_CPARMS_OBJ_READ 6 +#define VBOX_SHCL_CPARMS_OBJ_WRITE 6 + +/** + * Sends an error event. + * + * Used by: + * VBOX_SHCL_FN_WRITE_ERROR + */ +typedef struct _VBoxShClErrorMsg +{ + VBGLIOCHGCMCALL hdr; + + /** uint64_t, in: Context ID. */ + HGCMFunctionParameter uContext; + /** uint32_t, in: The error code (IPRT-style). */ + HGCMFunctionParameter rc; +} VBoxShClWriteErrorMsg; + +#define VBOX_SHCL_CPARMS_ERROR 2 + +/** @name VBOX_SHCL_GUEST_FN_NEGOTIATE_CHUNK_SIZE + * @{ */ +/** VBOX_SHCL_GUEST_FN_NEGOTIATE_CHUNK_SIZE parameters. */ +typedef struct _VBoxShClParmNegotiateChunkSize +{ + VBGLIOCHGCMCALL hdr; + + /** uint32_t, in: Maximum chunk size. */ + HGCMFunctionParameter cb32MaxChunkSize; + /** uint32_t, in: Default chunk size. */ + HGCMFunctionParameter cb32ChunkSize; +} VBoxShClParmNegotiateChunkSize; + +#define VBOX_SHCL_CPARMS_NEGOTIATE_CHUNK_SIZE 2 +/** @} */ + +#pragma pack() + +#endif /* !VBOX_INCLUDED_HostServices_VBoxClipboardSvc_h */ + |