[55401] | 1 | /* $Id: RemoteUSBBackend.cpp 100521 2023-07-11 16:47:42Z vboxsync $ */
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[31891] | 2 | /** @file
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| 3 | * VirtualBox Remote USB backend
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[31891] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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[31891] | 26 | */
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| 27 |
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[50530] | 28 | #define LOG_GROUP LOG_GROUP_USB_REMOTE
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[67914] | 29 | #include "LoggingNew.h"
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| 30 |
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[31891] | 31 | #include "ConsoleImpl.h"
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| 32 | #include "ConsoleVRDPServer.h"
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| 33 | #include "RemoteUSBBackend.h"
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| 34 | #include "RemoteUSBDeviceImpl.h"
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| 35 |
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[33004] | 36 | #include <VBox/RemoteDesktop/VRDE.h>
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[31891] | 37 | #include <VBox/vrdpusb.h>
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| 38 | #include <VBox/err.h>
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| 39 | #include <VBox/log.h>
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| 40 |
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| 41 | #include <VBox/vusb.h>
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| 42 |
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| 43 | #include <iprt/time.h>
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| 44 |
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| 45 | /** @page pg_vrdb_usb Async Remote USB
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| 46 | *
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| 47 | *
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| 48 | * USB backend functions are called in EMT so care must be taken to prevent
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| 49 | * delays in the functions execution.
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| 50 | *
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| 51 | * Among 11 backend functions 10 just return a success indicator.
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| 52 | *
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| 53 | * Such a function usually will check pending error code and if everything is ok,
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| 54 | * submit asynchronous RDP request and return success immediately.
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| 55 | *
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| 56 | * On actual completion of each request, the status will be saved as
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| 57 | * pending, so in case of an error all further functions will fail with
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| 58 | * device disconnected condition.
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| 59 | * @todo May be a device disconnect notification for console is required?
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| 60 | *
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| 61 | * The only remaining function that needs special processing is
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| 62 | * the reap_urb. It has a timeout parameter.
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| 63 | * Normally, the timeout is 0, as result of polling from VUSB frame timer.
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| 64 | * It is ok for async processing, the backend will periodically reap urbs from client.
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| 65 | * And already reaped URBs from client will be returned for the call.
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| 66 | * Exceptions:
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| 67 | * 1) during device initialization, when obtaining device descriptions
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| 68 | * the timeout is -1, and the request is expected to be processed synchronously.
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| 69 | * It looks like only 3 URBs with some information are retrieved that way.
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| 70 | * Probably, one can return this information in DEVICE_LIST together with the
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| 71 | * device description and when such request are submitted, just return
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| 72 | * the prefetched data.
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| 73 | * 2) during suspend timeout is non zero (10 or less milliseconds),
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| 74 | * and URB's are reaped for about 1 second. But here network delays
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| 75 | * will not affect the timeout, so it is ok.
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| 76 | *
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| 77 | *
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[65125] | 78 | * @section sub_vrdb_usb_dad Device attaching/detaching
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[31891] | 79 | *
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| 80 | * Devices are attached when client is connected or when a new device is connected to client.
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| 81 | * Devices are detached when client is disconnected (all devices) or a device is disconnected
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| 82 | * the client side.
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| 83 | *
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| 84 | * The backend polls the client for list of attached USB devices from RemoteUSBThread.
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| 85 | *
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| 86 | */
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| 87 |
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| 88 | /* Queued URB submitted to VRDP client. */
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| 89 | typedef struct _REMOTEUSBQURB
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| 90 | {
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| 91 | struct _REMOTEUSBQURB *next;
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| 92 | struct _REMOTEUSBQURB *prev;
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| 93 |
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| 94 | PREMOTEUSBDEVICE pDevice; /* Device, the URB is queued for. */
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| 95 |
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| 96 | uint32_t u32Handle; /* The handle of the URB. Generated by the Remote USB backend. */
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| 97 |
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| 98 | void *pvData; /* Pointer to URB data allocated by VUSB. */
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| 99 | void *pvURB; /* Pointer to URB known to VUSB. */
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| 100 |
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| 101 | uint32_t u32Len; /* Data length returned by the VRDP client. */
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| 102 | uint32_t u32Err; /* URB error code returned by the VRDP client. */
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| 103 |
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| 104 | bool fCompleted; /* The URB has been returned back by VRDP client. */
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| 105 | bool fInput; /* This URB receives data from the client. */
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| 106 |
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[33004] | 107 | uint32_t u32TransferredLen; /* For VRDE_USB_DIRECTION_OUT URBs = bytes written.
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| 108 | * For VRDE_USB_DIRECTION_IN URBs = bytes received.
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[31891] | 109 | */
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| 110 | } REMOTEUSBQURB;
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| 111 |
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| 112 | /* Remote USB device instance data. */
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| 113 | typedef struct _REMOTEUSBDEVICE
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| 114 | {
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| 115 | struct _REMOTEUSBDEVICE *prev;
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| 116 | struct _REMOTEUSBDEVICE *next;
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| 117 |
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| 118 | RemoteUSBBackend *pOwner;
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| 119 |
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[33004] | 120 | VRDEUSBDEVID id; /* The remote identifier, assigned by client. */
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[31891] | 121 |
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| 122 | uint32_t u32ClientId; /* The identifier of the remote client. */
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| 123 |
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| 124 | REMOTEUSBQURB *pHeadQURBs; /* List of URBs queued for the device. */
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| 125 | REMOTEUSBQURB *pTailQURBs;
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| 126 |
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| 127 | volatile uint32_t hURB; /* Source for URB's handles. */
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| 128 | bool fFailed; /* True if an operation has failed for the device. */
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| 129 | RTCRITSECT critsect; /* Protects the queued urb list. */
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[49814] | 130 | volatile bool fWokenUp; /* Flag whther the reaper was woken up. */
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[31891] | 131 | } REMOTEUSBDEVICE;
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| 132 |
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| 133 |
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| 134 |
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| 135 | static void requestDevice(REMOTEUSBDEVICE *pDevice)
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| 136 | {
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[94965] | 137 | int vrc = RTCritSectEnter(&pDevice->critsect);
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| 138 | AssertRC(vrc);
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[31891] | 139 | }
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| 140 |
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| 141 | static void releaseDevice(REMOTEUSBDEVICE *pDevice)
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| 142 | {
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| 143 | RTCritSectLeave(&pDevice->critsect);
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| 144 | }
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| 145 |
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| 146 | static REMOTEUSBQURB *qurbAlloc(PREMOTEUSBDEVICE pDevice)
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| 147 | {
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[63563] | 148 | /** @todo reuse URBs. */
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[31891] | 149 | REMOTEUSBQURB *pQURB = (REMOTEUSBQURB *)RTMemAllocZ (sizeof (REMOTEUSBQURB));
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| 150 |
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| 151 | if (pQURB)
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| 152 | {
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| 153 | pQURB->pDevice = pDevice;
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| 154 | }
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| 155 |
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| 156 | return pQURB;
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| 157 | }
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| 158 |
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| 159 | static void qurbFree (REMOTEUSBQURB *pQURB)
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| 160 | {
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| 161 | RTMemFree (pQURB);
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| 162 | return;
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| 163 | }
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| 164 |
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| 165 |
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| 166 | /* Called by VRDP server when the client responds to a request on USB channel. */
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[51092] | 167 | DECLCALLBACK(int) USBClientResponseCallback(void *pv, uint32_t u32ClientId, uint8_t code, const void *pvRet, uint32_t cbRet)
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[31891] | 168 | {
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[63256] | 169 | RT_NOREF(u32ClientId);
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[94965] | 170 | int vrc = VINF_SUCCESS;
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[31891] | 171 |
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| 172 | LogFlow(("USBClientResponseCallback: id = %d, pv = %p, code = %d, pvRet = %p, cbRet = %d\n",
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| 173 | u32ClientId, pv, code, pvRet, cbRet));
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| 174 |
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| 175 | RemoteUSBBackend *pThis = (RemoteUSBBackend *)pv;
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| 176 |
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| 177 | switch (code)
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| 178 | {
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[33004] | 179 | case VRDE_USB_REQ_DEVICE_LIST:
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[31891] | 180 | {
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[94965] | 181 | vrc = pThis->saveDeviceList(pvRet, cbRet);
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[31891] | 182 | } break;
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| 183 |
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[33004] | 184 | case VRDE_USB_REQ_NEGOTIATE:
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[31891] | 185 | {
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[51092] | 186 | if (pvRet && cbRet >= sizeof(VRDEUSBREQNEGOTIATERET))
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[31891] | 187 | {
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[33004] | 188 | VRDEUSBREQNEGOTIATERET *pret = (VRDEUSBREQNEGOTIATERET *)pvRet;
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[31891] | 189 |
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[94965] | 190 | vrc = pThis->negotiateResponse(pret, cbRet);
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[31891] | 191 | }
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| 192 | else
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| 193 | {
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| 194 | Log(("USBClientResponseCallback: WARNING: not enough data in response: pv = %p, cb = %d, expected %d.\n",
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[51092] | 195 | pvRet, cbRet, sizeof(VRDEUSBREQNEGOTIATERET)));
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[31891] | 196 |
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[94965] | 197 | vrc = VERR_INVALID_PARAMETER;
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[31891] | 198 | }
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| 199 | } break;
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| 200 |
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[33004] | 201 | case VRDE_USB_REQ_REAP_URB:
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[31891] | 202 | {
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[94965] | 203 | vrc = pThis->reapURB(pvRet, cbRet);
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[31891] | 204 |
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[98278] | 205 | LogFlow(("USBClientResponseCallback: reap URB, vrc = %Rrc.\n", vrc));
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[31891] | 206 | } break;
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| 207 |
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[33004] | 208 | case VRDE_USB_REQ_QUEUE_URB:
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| 209 | case VRDE_USB_REQ_CLOSE:
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| 210 | case VRDE_USB_REQ_CANCEL_URB:
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[31891] | 211 | {
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| 212 | /* Do nothing, actually this should not happen. */
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| 213 | Log(("USBClientResponseCallback: WARNING: response to a request %d is not expected!!!\n", code));
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| 214 | } break;
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| 215 |
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[33004] | 216 | case VRDE_USB_REQ_OPEN:
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| 217 | case VRDE_USB_REQ_RESET:
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| 218 | case VRDE_USB_REQ_SET_CONFIG:
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| 219 | case VRDE_USB_REQ_CLAIM_INTERFACE:
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| 220 | case VRDE_USB_REQ_RELEASE_INTERFACE:
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| 221 | case VRDE_USB_REQ_INTERFACE_SETTING:
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| 222 | case VRDE_USB_REQ_CLEAR_HALTED_EP:
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[31891] | 223 | {
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| 224 | /*
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| 225 | * Device specific responses with status codes.
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| 226 | */
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[51092] | 227 | if (pvRet && cbRet >= sizeof(VRDEUSBREQRETHDR))
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[31891] | 228 | {
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[33004] | 229 | VRDEUSBREQRETHDR *pret = (VRDEUSBREQRETHDR *)pvRet;
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[31891] | 230 |
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[33004] | 231 | if (pret->status != VRDE_USB_STATUS_SUCCESS)
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[31891] | 232 | {
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[51092] | 233 | REMOTEUSBDEVICE *pDevice = pThis->deviceFromId(pret->id);
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[31891] | 234 |
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| 235 | if (!pDevice)
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| 236 | {
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| 237 | Log(("USBClientResponseCallback: WARNING: invalid device id %08X.\n", pret->id));
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[94965] | 238 | vrc = VERR_INVALID_PARAMETER;
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[31891] | 239 | }
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| 240 | else
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| 241 | {
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| 242 | Log(("USBClientResponseCallback: WARNING: the operation failed, status %d\n", pret->status));
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| 243 | pDevice->fFailed = true;
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| 244 | }
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| 245 | }
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| 246 | }
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| 247 | else
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| 248 | {
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| 249 | Log(("USBClientResponseCallback: WARNING: not enough data in response: pv = %p, cb = %d, expected %d.\n",
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[51092] | 250 | pvRet, cbRet, sizeof(VRDEUSBREQRETHDR)));
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[31891] | 251 | }
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| 252 | } break;
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| 253 |
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| 254 | default:
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| 255 | {
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| 256 | Log(("USBClientResponseCallback: WARNING: invalid code %d\n", code));
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| 257 | } break;
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| 258 | }
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| 259 |
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[94965] | 260 | return vrc;
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[31891] | 261 | }
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| 262 |
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| 263 | /*
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| 264 | * Backend entry points.
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| 265 | */
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[51092] | 266 | static DECLCALLBACK(int) iface_Open(PREMOTEUSBBACKEND pInstance, const char *pszAddress,
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| 267 | size_t cbAddress, PREMOTEUSBDEVICE *ppDevice)
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[31891] | 268 | {
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[63256] | 269 | RT_NOREF(cbAddress);
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[94965] | 270 | int vrc = VINF_SUCCESS;
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[31891] | 271 |
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| 272 | RemoteUSBBackend *pThis = (RemoteUSBBackend *)pInstance;
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| 273 |
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[51092] | 274 | REMOTEUSBDEVICE *pDevice = (REMOTEUSBDEVICE *)RTMemAllocZ(sizeof(REMOTEUSBDEVICE));
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[31891] | 275 |
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| 276 | if (!pDevice)
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| 277 | {
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[94965] | 278 | vrc = VERR_NO_MEMORY;
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[31891] | 279 | }
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| 280 | else
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| 281 | {
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| 282 | /* Parse given address string to find the device identifier.
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| 283 | * The format is "REMOTEUSB0xAAAABBBB&0xCCCCDDDD", where AAAABBBB is hex device identifier
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| 284 | * and CCCCDDDD is hex client id.
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| 285 | */
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[51092] | 286 | if (strncmp(pszAddress, REMOTE_USB_BACKEND_PREFIX_S, REMOTE_USB_BACKEND_PREFIX_LEN) != 0)
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[31891] | 287 | {
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| 288 | AssertFailed();
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[94965] | 289 | vrc = VERR_INVALID_PARAMETER;
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[31891] | 290 | }
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| 291 | else
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| 292 | {
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| 293 | /* Initialize the device structure. */
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| 294 | pDevice->pOwner = pThis;
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[49814] | 295 | pDevice->fWokenUp = false;
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[31891] | 296 |
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[94965] | 297 | vrc = RTCritSectInit(&pDevice->critsect);
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| 298 | AssertRC(vrc);
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[31891] | 299 |
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[94965] | 300 | if (RT_SUCCESS(vrc))
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[31891] | 301 | {
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[51092] | 302 | pDevice->id = RTStrToUInt32(&pszAddress[REMOTE_USB_BACKEND_PREFIX_LEN]);
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[31891] | 303 |
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[51092] | 304 | size_t l = strlen(pszAddress);
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[31891] | 305 |
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[51092] | 306 | if (l >= REMOTE_USB_BACKEND_PREFIX_LEN + strlen("0x12345678&0x87654321"))
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[31891] | 307 | {
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[51092] | 308 | const char *p = &pszAddress[REMOTE_USB_BACKEND_PREFIX_LEN + strlen("0x12345678")];
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[31891] | 309 | if (*p == '&')
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| 310 | {
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[51092] | 311 | pDevice->u32ClientId = RTStrToUInt32(p + 1);
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[31891] | 312 | }
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| 313 | else
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| 314 | {
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[51092] | 315 | AssertFailed();
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[94965] | 316 | vrc = VERR_INVALID_PARAMETER;
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[31891] | 317 | }
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| 318 | }
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| 319 | else
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| 320 | {
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[51092] | 321 | AssertFailed();
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[94965] | 322 | vrc = VERR_INVALID_PARAMETER;
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[31891] | 323 | }
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| 324 |
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[94965] | 325 | if (RT_SUCCESS(vrc))
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[31891] | 326 | {
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[33004] | 327 | VRDE_USB_REQ_OPEN_PARM parm;
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[31891] | 328 |
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[33004] | 329 | parm.code = VRDE_USB_REQ_OPEN;
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[31891] | 330 | parm.id = pDevice->id;
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| 331 |
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[51092] | 332 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
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[31891] | 333 | }
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| 334 | }
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| 335 | }
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| 336 | }
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| 337 |
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[94965] | 338 | if (RT_SUCCESS(vrc))
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[31891] | 339 | {
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| 340 | *ppDevice = pDevice;
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| 341 |
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[51092] | 342 | pThis->addDevice(pDevice);
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[31891] | 343 | }
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| 344 | else
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| 345 | {
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[51092] | 346 | RTMemFree(pDevice);
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[31891] | 347 | }
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| 348 |
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[94965] | 349 | return vrc;
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[31891] | 350 | }
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| 351 |
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[51092] | 352 | static DECLCALLBACK(void) iface_Close(PREMOTEUSBDEVICE pDevice)
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[31891] | 353 | {
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| 354 | RemoteUSBBackend *pThis = pDevice->pOwner;
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| 355 |
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[33004] | 356 | VRDE_USB_REQ_CLOSE_PARM parm;
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[31891] | 357 |
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[33004] | 358 | parm.code = VRDE_USB_REQ_CLOSE;
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[31891] | 359 | parm.id = pDevice->id;
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| 360 |
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[51092] | 361 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
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[31891] | 362 |
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[51092] | 363 | pThis->removeDevice(pDevice);
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[31891] | 364 |
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[51092] | 365 | if (RTCritSectIsInitialized(&pDevice->critsect))
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[31891] | 366 | {
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[51092] | 367 | RTCritSectDelete(&pDevice->critsect);
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[31891] | 368 | }
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| 369 |
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[51092] | 370 | RTMemFree(pDevice);
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[31891] | 371 |
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| 372 | return;
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| 373 | }
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| 374 |
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[51092] | 375 | static DECLCALLBACK(int) iface_Reset(PREMOTEUSBDEVICE pDevice)
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[31891] | 376 | {
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| 377 | RemoteUSBBackend *pThis = pDevice->pOwner;
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| 378 |
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| 379 | if (pDevice->fFailed)
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| 380 | {
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| 381 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
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| 382 | }
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| 383 |
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[33004] | 384 | VRDE_USB_REQ_RESET_PARM parm;
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[31891] | 385 |
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[33004] | 386 | parm.code = VRDE_USB_REQ_RESET;
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[31891] | 387 | parm.id = pDevice->id;
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| 388 |
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[51092] | 389 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
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[31891] | 390 |
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| 391 | return VINF_SUCCESS;
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| 392 | }
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| 393 |
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[51092] | 394 | static DECLCALLBACK(int) iface_SetConfig(PREMOTEUSBDEVICE pDevice, uint8_t u8Cfg)
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[31891] | 395 | {
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| 396 | RemoteUSBBackend *pThis = pDevice->pOwner;
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| 397 |
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| 398 | if (pDevice->fFailed)
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| 399 | {
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| 400 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
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| 401 | }
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| 402 |
|
---|
[33004] | 403 | VRDE_USB_REQ_SET_CONFIG_PARM parm;
|
---|
[31891] | 404 |
|
---|
[33004] | 405 | parm.code = VRDE_USB_REQ_SET_CONFIG;
|
---|
[31891] | 406 | parm.id = pDevice->id;
|
---|
| 407 | parm.configuration = u8Cfg;
|
---|
| 408 |
|
---|
[51092] | 409 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 410 |
|
---|
| 411 | return VINF_SUCCESS;
|
---|
| 412 | }
|
---|
| 413 |
|
---|
[51092] | 414 | static DECLCALLBACK(int) iface_ClaimInterface(PREMOTEUSBDEVICE pDevice, uint8_t u8Ifnum)
|
---|
[31891] | 415 | {
|
---|
| 416 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 417 |
|
---|
| 418 | if (pDevice->fFailed)
|
---|
| 419 | {
|
---|
| 420 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
|
---|
| 421 | }
|
---|
| 422 |
|
---|
[33004] | 423 | VRDE_USB_REQ_CLAIM_INTERFACE_PARM parm;
|
---|
[31891] | 424 |
|
---|
[33004] | 425 | parm.code = VRDE_USB_REQ_CLAIM_INTERFACE;
|
---|
[31891] | 426 | parm.id = pDevice->id;
|
---|
| 427 | parm.iface = u8Ifnum;
|
---|
| 428 |
|
---|
[51092] | 429 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 430 |
|
---|
| 431 | return VINF_SUCCESS;
|
---|
| 432 | }
|
---|
| 433 |
|
---|
[51092] | 434 | static DECLCALLBACK(int) iface_ReleaseInterface(PREMOTEUSBDEVICE pDevice, uint8_t u8Ifnum)
|
---|
[31891] | 435 | {
|
---|
| 436 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 437 |
|
---|
| 438 | if (pDevice->fFailed)
|
---|
| 439 | {
|
---|
| 440 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
|
---|
| 441 | }
|
---|
| 442 |
|
---|
[33004] | 443 | VRDE_USB_REQ_RELEASE_INTERFACE_PARM parm;
|
---|
[31891] | 444 |
|
---|
[33004] | 445 | parm.code = VRDE_USB_REQ_RELEASE_INTERFACE;
|
---|
[31891] | 446 | parm.id = pDevice->id;
|
---|
| 447 | parm.iface = u8Ifnum;
|
---|
| 448 |
|
---|
[51092] | 449 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 450 |
|
---|
| 451 | return VINF_SUCCESS;
|
---|
| 452 | }
|
---|
| 453 |
|
---|
[51092] | 454 | static DECLCALLBACK(int) iface_InterfaceSetting(PREMOTEUSBDEVICE pDevice, uint8_t u8Ifnum, uint8_t u8Setting)
|
---|
[31891] | 455 | {
|
---|
| 456 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 457 |
|
---|
| 458 | if (pDevice->fFailed)
|
---|
| 459 | {
|
---|
| 460 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
|
---|
| 461 | }
|
---|
| 462 |
|
---|
[33004] | 463 | VRDE_USB_REQ_INTERFACE_SETTING_PARM parm;
|
---|
[31891] | 464 |
|
---|
[33004] | 465 | parm.code = VRDE_USB_REQ_INTERFACE_SETTING;
|
---|
[31891] | 466 | parm.id = pDevice->id;
|
---|
| 467 | parm.iface = u8Ifnum;
|
---|
| 468 | parm.setting = u8Setting;
|
---|
| 469 |
|
---|
[51092] | 470 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 471 |
|
---|
| 472 | return VINF_SUCCESS;
|
---|
| 473 | }
|
---|
| 474 |
|
---|
[51092] | 475 | static DECLCALLBACK(int) iface_ClearHaltedEP(PREMOTEUSBDEVICE pDevice, uint8_t u8Ep)
|
---|
[31891] | 476 | {
|
---|
| 477 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 478 |
|
---|
| 479 | if (pDevice->fFailed)
|
---|
| 480 | {
|
---|
| 481 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
|
---|
| 482 | }
|
---|
| 483 |
|
---|
[33004] | 484 | VRDE_USB_REQ_CLEAR_HALTED_EP_PARM parm;
|
---|
[31891] | 485 |
|
---|
[33004] | 486 | parm.code = VRDE_USB_REQ_CLEAR_HALTED_EP;
|
---|
[31891] | 487 | parm.id = pDevice->id;
|
---|
| 488 | parm.ep = u8Ep;
|
---|
| 489 |
|
---|
[51092] | 490 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 491 |
|
---|
| 492 | return VINF_SUCCESS;
|
---|
| 493 | }
|
---|
| 494 |
|
---|
[51092] | 495 | static DECLCALLBACK(void) iface_CancelURB(PREMOTEUSBDEVICE pDevice, PREMOTEUSBQURB pRemoteURB)
|
---|
[31891] | 496 | {
|
---|
| 497 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 498 |
|
---|
[33004] | 499 | VRDE_USB_REQ_CANCEL_URB_PARM parm;
|
---|
[31891] | 500 |
|
---|
[33004] | 501 | parm.code = VRDE_USB_REQ_CANCEL_URB;
|
---|
[31891] | 502 | parm.id = pDevice->id;
|
---|
| 503 | parm.handle = pRemoteURB->u32Handle;
|
---|
| 504 |
|
---|
[51092] | 505 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 506 |
|
---|
[51092] | 507 | requestDevice(pDevice);
|
---|
[31891] | 508 |
|
---|
| 509 | /* Remove this urb from the queue. It is safe because if
|
---|
| 510 | * client will return the URB, it will be just ignored
|
---|
| 511 | * in reapURB.
|
---|
| 512 | */
|
---|
| 513 | if (pRemoteURB->prev)
|
---|
| 514 | {
|
---|
| 515 | pRemoteURB->prev->next = pRemoteURB->next;
|
---|
| 516 | }
|
---|
| 517 | else
|
---|
| 518 | {
|
---|
| 519 | pDevice->pHeadQURBs = pRemoteURB->next;
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 | if (pRemoteURB->next)
|
---|
| 523 | {
|
---|
| 524 | pRemoteURB->next->prev = pRemoteURB->prev;
|
---|
| 525 | }
|
---|
| 526 | else
|
---|
| 527 | {
|
---|
| 528 | pDevice->pTailQURBs = pRemoteURB->prev;
|
---|
| 529 | }
|
---|
| 530 |
|
---|
[51092] | 531 | qurbFree(pRemoteURB);
|
---|
[31891] | 532 |
|
---|
[51092] | 533 | releaseDevice(pDevice);
|
---|
[31891] | 534 |
|
---|
| 535 | return;
|
---|
| 536 | }
|
---|
| 537 |
|
---|
[51092] | 538 | static DECLCALLBACK(int) iface_QueueURB(PREMOTEUSBDEVICE pDevice, uint8_t u8Type, uint8_t u8Ep, uint8_t u8Direction,
|
---|
| 539 | uint32_t u32Len, void *pvData, void *pvURB, PREMOTEUSBQURB *ppRemoteURB)
|
---|
[31891] | 540 | {
|
---|
[94965] | 541 | int vrc = VINF_SUCCESS;
|
---|
[31891] | 542 |
|
---|
| 543 | #ifdef DEBUG_sunlover
|
---|
[51092] | 544 | LogFlow(("RemoteUSBBackend::iface_QueueURB: u8Type = %d, u8Ep = %d, u8Direction = %d, data\n%.*Rhxd\n",
|
---|
| 545 | u8Type, u8Ep, u8Direction, u32Len, pvData));
|
---|
[31891] | 546 | #endif /* DEBUG_sunlover */
|
---|
| 547 |
|
---|
| 548 | if (pDevice->fFailed)
|
---|
| 549 | {
|
---|
| 550 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
|
---|
| 551 | }
|
---|
| 552 |
|
---|
| 553 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 554 |
|
---|
[33004] | 555 | VRDE_USB_REQ_QUEUE_URB_PARM parm;
|
---|
[31891] | 556 | uint32_t u32Handle = 0;
|
---|
| 557 | uint32_t u32DataLen = 0;
|
---|
| 558 |
|
---|
[51092] | 559 | REMOTEUSBQURB *qurb = qurbAlloc(pDevice);
|
---|
[31891] | 560 |
|
---|
| 561 | if (qurb == NULL)
|
---|
| 562 | {
|
---|
[94965] | 563 | vrc = VERR_NO_MEMORY;
|
---|
[31891] | 564 | goto l_leave;
|
---|
| 565 | }
|
---|
| 566 |
|
---|
| 567 | /*
|
---|
| 568 | * Compute length of data which need to be transferred to the client.
|
---|
| 569 | */
|
---|
| 570 | switch(u8Direction)
|
---|
| 571 | {
|
---|
| 572 | case VUSB_DIRECTION_IN:
|
---|
| 573 | {
|
---|
| 574 | if (u8Type == VUSBXFERTYPE_MSG)
|
---|
| 575 | {
|
---|
| 576 | u32DataLen = 8; /* 8 byte header. */
|
---|
[63563] | 577 | // u32DataLen = u32Len; /// @todo do messages need all information?
|
---|
[31891] | 578 | }
|
---|
| 579 | } break;
|
---|
| 580 |
|
---|
| 581 | case VUSB_DIRECTION_OUT:
|
---|
| 582 | {
|
---|
| 583 | u32DataLen = u32Len;
|
---|
| 584 | } break;
|
---|
| 585 |
|
---|
| 586 | default:
|
---|
| 587 | {
|
---|
| 588 | AssertFailed();
|
---|
[94965] | 589 | vrc = VERR_INVALID_PARAMETER;
|
---|
[31891] | 590 | goto l_leave;
|
---|
| 591 | }
|
---|
| 592 | }
|
---|
| 593 |
|
---|
[33004] | 594 | parm.code = VRDE_USB_REQ_QUEUE_URB;
|
---|
[31891] | 595 | parm.id = pDevice->id;
|
---|
| 596 |
|
---|
| 597 | u32Handle = pDevice->hURB++;
|
---|
| 598 | if (u32Handle == 0)
|
---|
| 599 | {
|
---|
| 600 | u32Handle = pDevice->hURB++;
|
---|
| 601 | }
|
---|
| 602 |
|
---|
| 603 | LogFlow(("RemoteUSBBackend::iface_QueueURB: handle = %d\n", u32Handle));
|
---|
| 604 |
|
---|
| 605 | parm.handle = u32Handle;
|
---|
| 606 |
|
---|
| 607 | switch(u8Type)
|
---|
| 608 | {
|
---|
[33004] | 609 | case VUSBXFERTYPE_CTRL: parm.type = VRDE_USB_TRANSFER_TYPE_CTRL; break;
|
---|
| 610 | case VUSBXFERTYPE_ISOC: parm.type = VRDE_USB_TRANSFER_TYPE_ISOC; break;
|
---|
| 611 | case VUSBXFERTYPE_BULK: parm.type = VRDE_USB_TRANSFER_TYPE_BULK; break;
|
---|
| 612 | case VUSBXFERTYPE_INTR: parm.type = VRDE_USB_TRANSFER_TYPE_INTR; break;
|
---|
| 613 | case VUSBXFERTYPE_MSG: parm.type = VRDE_USB_TRANSFER_TYPE_MSG; break;
|
---|
[94965] | 614 | default: AssertFailed(); vrc = VERR_INVALID_PARAMETER; goto l_leave;
|
---|
[31891] | 615 | }
|
---|
| 616 |
|
---|
| 617 | parm.ep = u8Ep;
|
---|
| 618 |
|
---|
| 619 | switch(u8Direction)
|
---|
| 620 | {
|
---|
[33004] | 621 | case VUSB_DIRECTION_SETUP: AssertFailed(); parm.direction = VRDE_USB_DIRECTION_SETUP; break;
|
---|
| 622 | case VUSB_DIRECTION_IN: parm.direction = VRDE_USB_DIRECTION_IN; break;
|
---|
| 623 | case VUSB_DIRECTION_OUT: parm.direction = VRDE_USB_DIRECTION_OUT; break;
|
---|
[94965] | 624 | default: AssertFailed(); vrc = VERR_INVALID_PARAMETER; goto l_leave;
|
---|
[31891] | 625 | }
|
---|
| 626 |
|
---|
| 627 | parm.urblen = u32Len;
|
---|
| 628 | parm.datalen = u32DataLen;
|
---|
| 629 |
|
---|
| 630 | if (u32DataLen)
|
---|
| 631 | {
|
---|
| 632 | parm.data = pvData;
|
---|
| 633 | }
|
---|
| 634 |
|
---|
| 635 | requestDevice (pDevice);
|
---|
| 636 |
|
---|
| 637 | /* Add at tail of queued urb list. */
|
---|
| 638 | qurb->next = NULL;
|
---|
| 639 | qurb->prev = pDevice->pTailQURBs;
|
---|
[33004] | 640 | qurb->u32Err = VRDE_USB_XFER_OK;
|
---|
[31891] | 641 | qurb->u32Len = u32Len;
|
---|
| 642 | qurb->pvData = pvData;
|
---|
| 643 | qurb->pvURB = pvURB;
|
---|
| 644 | qurb->u32Handle = u32Handle;
|
---|
| 645 | qurb->fCompleted = false;
|
---|
| 646 | qurb->fInput = (u8Direction == VUSB_DIRECTION_IN);
|
---|
| 647 | qurb->u32TransferredLen = 0;
|
---|
| 648 |
|
---|
| 649 | if (pDevice->pTailQURBs)
|
---|
| 650 | {
|
---|
| 651 | Assert(pDevice->pTailQURBs->next == NULL);
|
---|
| 652 | pDevice->pTailQURBs->next = qurb;
|
---|
| 653 | }
|
---|
| 654 | else
|
---|
| 655 | {
|
---|
| 656 | /* This is the first URB to be added. */
|
---|
| 657 | Assert(pDevice->pHeadQURBs == NULL);
|
---|
| 658 | pDevice->pHeadQURBs = qurb;
|
---|
| 659 | }
|
---|
| 660 |
|
---|
| 661 | pDevice->pTailQURBs = qurb;
|
---|
| 662 |
|
---|
[51092] | 663 | releaseDevice(pDevice);
|
---|
[31891] | 664 |
|
---|
| 665 | *ppRemoteURB = qurb;
|
---|
| 666 |
|
---|
[51092] | 667 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 668 |
|
---|
| 669 | l_leave:
|
---|
[94965] | 670 | if (RT_FAILURE(vrc))
|
---|
[31891] | 671 | {
|
---|
[51092] | 672 | qurbFree(qurb);
|
---|
[31891] | 673 | }
|
---|
| 674 |
|
---|
[94965] | 675 | return vrc;
|
---|
[31891] | 676 | }
|
---|
| 677 |
|
---|
| 678 | /* The function checks the URB queue for completed URBs. Also if the client
|
---|
| 679 | * has requested URB polling, the function will send URB poll requests.
|
---|
| 680 | */
|
---|
[51092] | 681 | static DECLCALLBACK(int) iface_ReapURB(PREMOTEUSBDEVICE pDevice, uint32_t u32Millies, void **ppvURB,
|
---|
| 682 | uint32_t *pu32Len, uint32_t *pu32Err)
|
---|
[31891] | 683 | {
|
---|
[94965] | 684 | int vrc = VINF_SUCCESS;
|
---|
[31891] | 685 |
|
---|
| 686 | LogFlow(("RemoteUSBBackend::iface_ReapURB %d ms\n", u32Millies));
|
---|
| 687 |
|
---|
| 688 | if (pDevice->fFailed)
|
---|
| 689 | {
|
---|
| 690 | return VERR_VUSB_DEVICE_NOT_ATTACHED;
|
---|
| 691 | }
|
---|
| 692 |
|
---|
| 693 | RemoteUSBBackend *pThis = pDevice->pOwner;
|
---|
| 694 |
|
---|
| 695 | /* Wait for transaction completion. */
|
---|
[51092] | 696 | uint64_t u64StartTime = RTTimeMilliTS();
|
---|
[31891] | 697 |
|
---|
[51092] | 698 | if (pThis->pollingEnabledURB())
|
---|
[31891] | 699 | {
|
---|
[33004] | 700 | VRDE_USB_REQ_REAP_URB_PARM parm;
|
---|
[31891] | 701 |
|
---|
[33004] | 702 | parm.code = VRDE_USB_REQ_REAP_URB;
|
---|
[31891] | 703 |
|
---|
[51092] | 704 | pThis->VRDPServer()->SendUSBRequest(pDevice->u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 705 | }
|
---|
| 706 |
|
---|
| 707 | REMOTEUSBQURB *qurb = NULL;
|
---|
| 708 |
|
---|
| 709 | for (;;)
|
---|
| 710 | {
|
---|
| 711 | uint32_t u32ClientId;
|
---|
| 712 |
|
---|
[49814] | 713 | if (ASMAtomicXchgBool(&pDevice->fWokenUp, false))
|
---|
| 714 | break;
|
---|
| 715 |
|
---|
[31891] | 716 | /* Scan queued URBs, look for completed. */
|
---|
[51092] | 717 | requestDevice(pDevice);
|
---|
[31891] | 718 |
|
---|
| 719 | u32ClientId = pDevice->u32ClientId;
|
---|
| 720 |
|
---|
| 721 | qurb = pDevice->pHeadQURBs;
|
---|
| 722 |
|
---|
| 723 | while (qurb)
|
---|
| 724 | {
|
---|
| 725 | if (qurb->fCompleted)
|
---|
| 726 | {
|
---|
| 727 | /* Remove this completed urb from the queue. */
|
---|
| 728 | if (qurb->prev)
|
---|
| 729 | {
|
---|
| 730 | qurb->prev->next = qurb->next;
|
---|
| 731 | }
|
---|
| 732 | else
|
---|
| 733 | {
|
---|
| 734 | pDevice->pHeadQURBs = qurb->next;
|
---|
| 735 | }
|
---|
| 736 |
|
---|
| 737 | if (qurb->next)
|
---|
| 738 | {
|
---|
| 739 | qurb->next->prev = qurb->prev;
|
---|
| 740 | }
|
---|
| 741 | else
|
---|
| 742 | {
|
---|
| 743 | pDevice->pTailQURBs = qurb->prev;
|
---|
| 744 | }
|
---|
| 745 |
|
---|
| 746 | qurb->next = NULL;
|
---|
| 747 | qurb->prev = NULL;
|
---|
| 748 |
|
---|
| 749 | break;
|
---|
| 750 | }
|
---|
| 751 |
|
---|
| 752 | qurb = qurb->next;
|
---|
| 753 | }
|
---|
| 754 |
|
---|
[51092] | 755 | releaseDevice(pDevice);
|
---|
[31891] | 756 |
|
---|
| 757 | if ( qurb
|
---|
| 758 | || !pDevice->pHeadQURBs
|
---|
| 759 | || u32Millies == 0
|
---|
| 760 | || pDevice->fFailed
|
---|
[51092] | 761 | || (RTTimeMilliTS() - u64StartTime >= (uint64_t)u32Millies))
|
---|
[31891] | 762 | {
|
---|
| 763 | /* Got an URB or do not have to wait for an URB. */
|
---|
| 764 | break;
|
---|
| 765 | }
|
---|
| 766 |
|
---|
| 767 | LogFlow(("RemoteUSBBackend::iface_ReapURB iteration.\n"));
|
---|
| 768 |
|
---|
[51092] | 769 | RTThreadSleep(10);
|
---|
[31891] | 770 |
|
---|
[51092] | 771 | if (pThis->pollingEnabledURB())
|
---|
[31891] | 772 | {
|
---|
[33004] | 773 | VRDE_USB_REQ_REAP_URB_PARM parm;
|
---|
[31891] | 774 |
|
---|
[33004] | 775 | parm.code = VRDE_USB_REQ_REAP_URB;
|
---|
[31891] | 776 |
|
---|
[51092] | 777 | pThis->VRDPServer()->SendUSBRequest(u32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 778 | }
|
---|
| 779 | }
|
---|
| 780 |
|
---|
| 781 | LogFlow(("RemoteUSBBackend::iface_ReapURB completed in %lld ms, qurb = %p\n", RTTimeMilliTS () - u64StartTime, qurb));
|
---|
| 782 |
|
---|
| 783 | if (!qurb)
|
---|
| 784 | {
|
---|
| 785 | *ppvURB = NULL;
|
---|
| 786 | *pu32Len = 0;
|
---|
| 787 | *pu32Err = VUSBSTATUS_OK;
|
---|
| 788 | }
|
---|
| 789 | else
|
---|
| 790 | {
|
---|
| 791 | *ppvURB = qurb->pvURB;
|
---|
| 792 | *pu32Len = qurb->u32Len;
|
---|
| 793 | *pu32Err = qurb->u32Err;
|
---|
| 794 |
|
---|
| 795 | #ifdef LOG_ENABLED
|
---|
| 796 | Log(("URB len = %d, data = %p\n", qurb->u32Len, qurb->pvURB));
|
---|
| 797 | if (qurb->u32Len)
|
---|
| 798 | {
|
---|
| 799 | Log(("Received URB content:\n%.*Rhxd\n", qurb->u32Len, qurb->pvData));
|
---|
| 800 | }
|
---|
| 801 | #endif
|
---|
| 802 |
|
---|
[51092] | 803 | qurbFree(qurb);
|
---|
[31891] | 804 | }
|
---|
| 805 |
|
---|
[94965] | 806 | return vrc;
|
---|
[31891] | 807 | }
|
---|
| 808 |
|
---|
[51092] | 809 | static DECLCALLBACK(int) iface_Wakeup(PREMOTEUSBDEVICE pDevice)
|
---|
[49814] | 810 | {
|
---|
| 811 | ASMAtomicXchgBool(&pDevice->fWokenUp, true);
|
---|
| 812 | return VINF_SUCCESS;
|
---|
| 813 | }
|
---|
| 814 |
|
---|
[51092] | 815 | void RemoteUSBBackend::AddRef(void)
|
---|
[31891] | 816 | {
|
---|
| 817 | cRefs++;
|
---|
| 818 | }
|
---|
| 819 |
|
---|
[51092] | 820 | void RemoteUSBBackend::Release(void)
|
---|
[31891] | 821 | {
|
---|
| 822 | cRefs--;
|
---|
| 823 |
|
---|
| 824 | if (cRefs <= 0)
|
---|
| 825 | {
|
---|
| 826 | delete this;
|
---|
| 827 | }
|
---|
| 828 | }
|
---|
| 829 |
|
---|
[51092] | 830 | void RemoteUSBBackend::PollRemoteDevices(void)
|
---|
[31891] | 831 | {
|
---|
| 832 | if ( mfWillBeDeleted
|
---|
| 833 | && menmPollRemoteDevicesStatus != PollRemoteDevicesStatus_Dereferenced)
|
---|
| 834 | {
|
---|
| 835 | /* Unmount all remote USB devices. */
|
---|
[51612] | 836 | mConsole->i_processRemoteUSBDevices(mu32ClientId, NULL, 0, false);
|
---|
[31891] | 837 |
|
---|
| 838 | menmPollRemoteDevicesStatus = PollRemoteDevicesStatus_Dereferenced;
|
---|
| 839 |
|
---|
[51092] | 840 | Release();
|
---|
[31891] | 841 |
|
---|
| 842 | return;
|
---|
| 843 | }
|
---|
| 844 |
|
---|
[51092] | 845 | switch(menmPollRemoteDevicesStatus)
|
---|
[31891] | 846 | {
|
---|
| 847 | case PollRemoteDevicesStatus_Negotiate:
|
---|
| 848 | {
|
---|
[33004] | 849 | VRDEUSBREQNEGOTIATEPARM parm;
|
---|
[31891] | 850 |
|
---|
[33004] | 851 | parm.code = VRDE_USB_REQ_NEGOTIATE;
|
---|
| 852 | parm.version = VRDE_USB_VERSION;
|
---|
[38911] | 853 | /* VRDE_USB_VERSION_3: support VRDE_USB_REQ_DEVICE_LIST_EXT_RET. */
|
---|
| 854 | parm.flags = VRDE_USB_SERVER_CAPS_PORT_VERSION;
|
---|
[31891] | 855 |
|
---|
[51092] | 856 | mServer->SendUSBRequest(mu32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 857 |
|
---|
| 858 | /* Reference the object. When the client disconnects and
|
---|
| 859 | * the backend is about to be deleted, the method must be called
|
---|
| 860 | * to disconnect the USB devices (as stated above).
|
---|
| 861 | */
|
---|
[51092] | 862 | AddRef();
|
---|
[31891] | 863 |
|
---|
[33540] | 864 | /* Goto the disabled state. When a response will be received
|
---|
[31891] | 865 | * the state will be changed to the SendRequest.
|
---|
| 866 | */
|
---|
| 867 | menmPollRemoteDevicesStatus = PollRemoteDevicesStatus_WaitNegotiateResponse;
|
---|
| 868 | } break;
|
---|
| 869 |
|
---|
| 870 | case PollRemoteDevicesStatus_WaitNegotiateResponse:
|
---|
| 871 | {
|
---|
| 872 | LogFlow(("USB::PollRemoteDevices: WaitNegotiateResponse\n"));
|
---|
| 873 | /* Do nothing. */
|
---|
| 874 | } break;
|
---|
| 875 |
|
---|
| 876 | case PollRemoteDevicesStatus_SendRequest:
|
---|
| 877 | {
|
---|
| 878 | LogFlow(("USB::PollRemoteDevices: SendRequest\n"));
|
---|
| 879 |
|
---|
| 880 | /* Send a request for device list. */
|
---|
[33004] | 881 | VRDE_USB_REQ_DEVICE_LIST_PARM parm;
|
---|
[31891] | 882 |
|
---|
[33004] | 883 | parm.code = VRDE_USB_REQ_DEVICE_LIST;
|
---|
[31891] | 884 |
|
---|
[51092] | 885 | mServer->SendUSBRequest(mu32ClientId, &parm, sizeof(parm));
|
---|
[31891] | 886 |
|
---|
| 887 | menmPollRemoteDevicesStatus = PollRemoteDevicesStatus_WaitResponse;
|
---|
| 888 | } break;
|
---|
| 889 |
|
---|
| 890 | case PollRemoteDevicesStatus_WaitResponse:
|
---|
| 891 | {
|
---|
| 892 | LogFlow(("USB::PollRemoteDevices: WaitResponse\n"));
|
---|
| 893 |
|
---|
| 894 | if (mfHasDeviceList)
|
---|
| 895 | {
|
---|
[51612] | 896 | mConsole->i_processRemoteUSBDevices(mu32ClientId, (VRDEUSBDEVICEDESC *)mpvDeviceList, mcbDeviceList, mfDescExt);
|
---|
[31891] | 897 | LogFlow(("USB::PollRemoteDevices: WaitResponse after process\n"));
|
---|
| 898 |
|
---|
| 899 | menmPollRemoteDevicesStatus = PollRemoteDevicesStatus_SendRequest;
|
---|
| 900 |
|
---|
| 901 | mfHasDeviceList = false;
|
---|
| 902 | }
|
---|
| 903 | } break;
|
---|
| 904 |
|
---|
| 905 | case PollRemoteDevicesStatus_Dereferenced:
|
---|
| 906 | {
|
---|
| 907 | LogFlow(("USB::PollRemoteDevices: Dereferenced\n"));
|
---|
| 908 | /* Do nothing. */
|
---|
| 909 | } break;
|
---|
| 910 |
|
---|
| 911 | default:
|
---|
| 912 | {
|
---|
[51092] | 913 | AssertFailed();
|
---|
[31891] | 914 | } break;
|
---|
| 915 | }
|
---|
| 916 | }
|
---|
| 917 |
|
---|
[51092] | 918 | void RemoteUSBBackend::NotifyDelete(void)
|
---|
[31891] | 919 | {
|
---|
| 920 | mfWillBeDeleted = true;
|
---|
| 921 | }
|
---|
| 922 |
|
---|
| 923 | /*
|
---|
| 924 | * The backend maintains a list of UUIDs of devices
|
---|
| 925 | * which are managed by the backend.
|
---|
| 926 | */
|
---|
[51092] | 927 | bool RemoteUSBBackend::addUUID(const Guid *pUuid)
|
---|
[31891] | 928 | {
|
---|
| 929 | unsigned i;
|
---|
| 930 | for (i = 0; i < RT_ELEMENTS(aGuids); i++)
|
---|
| 931 | {
|
---|
[44039] | 932 | if (aGuids[i].isZero())
|
---|
[31891] | 933 | {
|
---|
| 934 | aGuids[i] = *pUuid;
|
---|
| 935 | return true;
|
---|
| 936 | }
|
---|
| 937 | }
|
---|
| 938 |
|
---|
| 939 | return false;
|
---|
| 940 | }
|
---|
| 941 |
|
---|
[51092] | 942 | bool RemoteUSBBackend::findUUID(const Guid *pUuid)
|
---|
[31891] | 943 | {
|
---|
| 944 | unsigned i;
|
---|
| 945 | for (i = 0; i < RT_ELEMENTS(aGuids); i++)
|
---|
| 946 | {
|
---|
| 947 | if (aGuids[i] == *pUuid)
|
---|
| 948 | {
|
---|
| 949 | return true;
|
---|
| 950 | }
|
---|
| 951 | }
|
---|
| 952 |
|
---|
| 953 | return false;
|
---|
| 954 | }
|
---|
| 955 |
|
---|
[51092] | 956 | void RemoteUSBBackend::removeUUID(const Guid *pUuid)
|
---|
[31891] | 957 | {
|
---|
| 958 | unsigned i;
|
---|
| 959 | for (i = 0; i < RT_ELEMENTS(aGuids); i++)
|
---|
| 960 | {
|
---|
| 961 | if (aGuids[i] == *pUuid)
|
---|
| 962 | {
|
---|
[51092] | 963 | aGuids[i].clear();
|
---|
[31891] | 964 | break;
|
---|
| 965 | }
|
---|
| 966 | }
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 | RemoteUSBBackend::RemoteUSBBackend(Console *console, ConsoleVRDPServer *server, uint32_t u32ClientId)
|
---|
| 970 | :
|
---|
[51092] | 971 | mConsole(console),
|
---|
| 972 | mServer(server),
|
---|
| 973 | cRefs(0),
|
---|
| 974 | mu32ClientId(u32ClientId),
|
---|
| 975 | mfHasDeviceList(false),
|
---|
| 976 | mpvDeviceList(NULL),
|
---|
| 977 | mcbDeviceList(0),
|
---|
| 978 | menmPollRemoteDevicesStatus(PollRemoteDevicesStatus_Negotiate),
|
---|
| 979 | mfPollURB(true),
|
---|
| 980 | mpDevices(NULL),
|
---|
| 981 | mfWillBeDeleted(false),
|
---|
| 982 | mClientVersion(0), /* VRDE_USB_VERSION_2: the client version. */
|
---|
| 983 | mfDescExt(false) /* VRDE_USB_VERSION_3: VRDE_USB_REQ_DEVICE_LIST_EXT_RET. */
|
---|
[31891] | 984 | {
|
---|
| 985 | Assert(console);
|
---|
| 986 | Assert(server);
|
---|
| 987 |
|
---|
[94965] | 988 | int vrc = RTCritSectInit(&mCritsect);
|
---|
[31891] | 989 |
|
---|
[94965] | 990 | if (RT_FAILURE(vrc))
|
---|
[31891] | 991 | {
|
---|
[51092] | 992 | AssertFailed();
|
---|
[47117] | 993 | RT_ZERO(mCritsect);
|
---|
[31891] | 994 | }
|
---|
| 995 |
|
---|
| 996 | mCallback.pInstance = (PREMOTEUSBBACKEND)this;
|
---|
| 997 | mCallback.pfnOpen = iface_Open;
|
---|
| 998 | mCallback.pfnClose = iface_Close;
|
---|
| 999 | mCallback.pfnReset = iface_Reset;
|
---|
| 1000 | mCallback.pfnSetConfig = iface_SetConfig;
|
---|
| 1001 | mCallback.pfnClaimInterface = iface_ClaimInterface;
|
---|
| 1002 | mCallback.pfnReleaseInterface = iface_ReleaseInterface;
|
---|
| 1003 | mCallback.pfnInterfaceSetting = iface_InterfaceSetting;
|
---|
| 1004 | mCallback.pfnQueueURB = iface_QueueURB;
|
---|
| 1005 | mCallback.pfnReapURB = iface_ReapURB;
|
---|
| 1006 | mCallback.pfnClearHaltedEP = iface_ClearHaltedEP;
|
---|
| 1007 | mCallback.pfnCancelURB = iface_CancelURB;
|
---|
[49814] | 1008 | mCallback.pfnWakeup = iface_Wakeup;
|
---|
[31891] | 1009 | }
|
---|
| 1010 |
|
---|
| 1011 | RemoteUSBBackend::~RemoteUSBBackend()
|
---|
| 1012 | {
|
---|
| 1013 | Assert(cRefs == 0);
|
---|
| 1014 |
|
---|
[51092] | 1015 | if (RTCritSectIsInitialized(&mCritsect))
|
---|
[31891] | 1016 | {
|
---|
[51092] | 1017 | RTCritSectDelete(&mCritsect);
|
---|
[31891] | 1018 | }
|
---|
| 1019 |
|
---|
[51092] | 1020 | RTMemFree(mpvDeviceList);
|
---|
[31891] | 1021 |
|
---|
[51092] | 1022 | mServer->usbBackendRemoveFromList(this);
|
---|
[31891] | 1023 | }
|
---|
| 1024 |
|
---|
[51092] | 1025 | int RemoteUSBBackend::negotiateResponse(const VRDEUSBREQNEGOTIATERET *pret, uint32_t cbRet)
|
---|
[31891] | 1026 | {
|
---|
[94965] | 1027 | int vrc = VINF_SUCCESS;
|
---|
[31891] | 1028 |
|
---|
| 1029 | Log(("RemoteUSBBackend::negotiateResponse: flags = %02X.\n", pret->flags));
|
---|
| 1030 |
|
---|
| 1031 | LogRel(("Remote USB: Received negotiate response. Flags 0x%02X.\n",
|
---|
| 1032 | pret->flags));
|
---|
| 1033 |
|
---|
[33004] | 1034 | if (pret->flags & VRDE_USB_CAPS_FLAG_POLL)
|
---|
[31891] | 1035 | {
|
---|
| 1036 | Log(("RemoteUSBBackend::negotiateResponse: client requested URB polling.\n"));
|
---|
| 1037 | mfPollURB = true;
|
---|
| 1038 | }
|
---|
| 1039 | else
|
---|
| 1040 | {
|
---|
| 1041 | mfPollURB = false;
|
---|
| 1042 | }
|
---|
| 1043 |
|
---|
[33004] | 1044 | /* VRDE_USB_VERSION_2: check the client version. */
|
---|
| 1045 | if (pret->flags & VRDE_USB_CAPS2_FLAG_VERSION)
|
---|
[31891] | 1046 | {
|
---|
| 1047 | /* This could be a client version > 1. */
|
---|
[51092] | 1048 | if (cbRet >= sizeof(VRDEUSBREQNEGOTIATERET_2))
|
---|
[31891] | 1049 | {
|
---|
[33004] | 1050 | VRDEUSBREQNEGOTIATERET_2 *pret2 = (VRDEUSBREQNEGOTIATERET_2 *)pret;
|
---|
[31891] | 1051 |
|
---|
[33004] | 1052 | if (pret2->u32Version <= VRDE_USB_VERSION)
|
---|
[31891] | 1053 | {
|
---|
| 1054 | /* This is OK. The client wants a version supported by the server. */
|
---|
| 1055 | mClientVersion = pret2->u32Version;
|
---|
| 1056 | }
|
---|
| 1057 | else
|
---|
| 1058 | {
|
---|
| 1059 | LogRel(("VRDP: ERROR: unsupported remote USB protocol client version %d.\n", pret2->u32Version));
|
---|
[94965] | 1060 | vrc = VERR_NOT_SUPPORTED;
|
---|
[31891] | 1061 | }
|
---|
| 1062 | }
|
---|
| 1063 | else
|
---|
| 1064 | {
|
---|
| 1065 | LogRel(("VRDP: ERROR: invalid remote USB negotiate request packet size %d.\n", cbRet));
|
---|
[94965] | 1066 | vrc = VERR_NOT_SUPPORTED;
|
---|
[31891] | 1067 | }
|
---|
| 1068 | }
|
---|
| 1069 | else
|
---|
| 1070 | {
|
---|
| 1071 | /* This is a client version 1. */
|
---|
[33004] | 1072 | mClientVersion = VRDE_USB_VERSION_1;
|
---|
[31891] | 1073 | }
|
---|
| 1074 |
|
---|
[94965] | 1075 | if (RT_SUCCESS(vrc))
|
---|
[31891] | 1076 | {
|
---|
| 1077 | LogRel(("VRDP: remote USB protocol version %d.\n", mClientVersion));
|
---|
| 1078 |
|
---|
[38911] | 1079 | /* VRDE_USB_VERSION_3: check the client capabilities: VRDE_USB_CLIENT_CAPS_*. */
|
---|
| 1080 | if (mClientVersion == VRDE_USB_VERSION_3)
|
---|
| 1081 | {
|
---|
[51092] | 1082 | if (cbRet >= sizeof(VRDEUSBREQNEGOTIATERET_3))
|
---|
[38911] | 1083 | {
|
---|
| 1084 | VRDEUSBREQNEGOTIATERET_3 *pret3 = (VRDEUSBREQNEGOTIATERET_3 *)pret;
|
---|
| 1085 |
|
---|
| 1086 | mfDescExt = (pret3->u32Flags & VRDE_USB_CLIENT_CAPS_PORT_VERSION) != 0;
|
---|
| 1087 | }
|
---|
| 1088 | else
|
---|
| 1089 | {
|
---|
| 1090 | LogRel(("VRDP: ERROR: invalid remote USB negotiate request packet size %d.\n", cbRet));
|
---|
[94965] | 1091 | vrc = VERR_NOT_SUPPORTED;
|
---|
[38911] | 1092 | }
|
---|
| 1093 | }
|
---|
| 1094 |
|
---|
[31891] | 1095 | menmPollRemoteDevicesStatus = PollRemoteDevicesStatus_SendRequest;
|
---|
| 1096 | }
|
---|
| 1097 |
|
---|
[94965] | 1098 | return vrc;
|
---|
[31891] | 1099 | }
|
---|
| 1100 |
|
---|
[51092] | 1101 | int RemoteUSBBackend::saveDeviceList(const void *pvList, uint32_t cbList)
|
---|
[31891] | 1102 | {
|
---|
| 1103 | Log(("RemoteUSBBackend::saveDeviceList: pvList = %p, cbList = %d\n", pvList, cbList));
|
---|
| 1104 |
|
---|
| 1105 | if (!mfHasDeviceList)
|
---|
| 1106 | {
|
---|
[51092] | 1107 | RTMemFree(mpvDeviceList);
|
---|
[31891] | 1108 | mpvDeviceList = NULL;
|
---|
[100521] | 1109 | mcbDeviceList = 0;
|
---|
[31891] | 1110 |
|
---|
| 1111 | if (cbList > 0)
|
---|
| 1112 | {
|
---|
[51092] | 1113 | mpvDeviceList = RTMemAlloc(cbList);
|
---|
[100521] | 1114 | AssertPtrReturn(mpvDeviceList, VERR_NO_MEMORY);
|
---|
| 1115 |
|
---|
[51092] | 1116 | memcpy(mpvDeviceList, pvList, cbList);
|
---|
[100521] | 1117 | mcbDeviceList = cbList;
|
---|
[31891] | 1118 | }
|
---|
| 1119 |
|
---|
| 1120 | mfHasDeviceList = true;
|
---|
| 1121 | }
|
---|
| 1122 |
|
---|
| 1123 | return VINF_SUCCESS;
|
---|
| 1124 | }
|
---|
| 1125 |
|
---|
[51092] | 1126 | void RemoteUSBBackend::request(void)
|
---|
[31891] | 1127 | {
|
---|
[94965] | 1128 | int vrc = RTCritSectEnter(&mCritsect);
|
---|
| 1129 | AssertRC(vrc);
|
---|
[31891] | 1130 | }
|
---|
| 1131 |
|
---|
[51092] | 1132 | void RemoteUSBBackend::release(void)
|
---|
[31891] | 1133 | {
|
---|
| 1134 | RTCritSectLeave(&mCritsect);
|
---|
| 1135 | }
|
---|
| 1136 |
|
---|
[51092] | 1137 | PREMOTEUSBDEVICE RemoteUSBBackend::deviceFromId(VRDEUSBDEVID id)
|
---|
[31891] | 1138 | {
|
---|
[51092] | 1139 | request();
|
---|
[31891] | 1140 |
|
---|
| 1141 | REMOTEUSBDEVICE *pDevice = mpDevices;
|
---|
| 1142 |
|
---|
| 1143 | while (pDevice && pDevice->id != id)
|
---|
| 1144 | {
|
---|
| 1145 | pDevice = pDevice->next;
|
---|
| 1146 | }
|
---|
| 1147 |
|
---|
[51092] | 1148 | release();
|
---|
[31891] | 1149 |
|
---|
| 1150 | return pDevice;
|
---|
| 1151 | }
|
---|
| 1152 |
|
---|
[51092] | 1153 | void RemoteUSBBackend::addDevice(PREMOTEUSBDEVICE pDevice)
|
---|
[31891] | 1154 | {
|
---|
[51092] | 1155 | request();
|
---|
[31891] | 1156 |
|
---|
| 1157 | pDevice->next = mpDevices;
|
---|
| 1158 |
|
---|
| 1159 | if (mpDevices)
|
---|
| 1160 | {
|
---|
| 1161 | mpDevices->prev = pDevice;
|
---|
| 1162 | }
|
---|
| 1163 |
|
---|
| 1164 | mpDevices = pDevice;
|
---|
| 1165 |
|
---|
[51092] | 1166 | release();
|
---|
[31891] | 1167 | }
|
---|
| 1168 |
|
---|
[51092] | 1169 | void RemoteUSBBackend::removeDevice(PREMOTEUSBDEVICE pDevice)
|
---|
[31891] | 1170 | {
|
---|
[51092] | 1171 | request();
|
---|
[31891] | 1172 |
|
---|
| 1173 | if (pDevice->prev)
|
---|
| 1174 | {
|
---|
| 1175 | pDevice->prev->next = pDevice->next;
|
---|
| 1176 | }
|
---|
| 1177 | else
|
---|
| 1178 | {
|
---|
| 1179 | mpDevices = pDevice->next;
|
---|
| 1180 | }
|
---|
| 1181 |
|
---|
| 1182 | if (pDevice->next)
|
---|
| 1183 | {
|
---|
| 1184 | pDevice->next->prev = pDevice->prev;
|
---|
| 1185 | }
|
---|
| 1186 |
|
---|
[51092] | 1187 | release();
|
---|
[31891] | 1188 | }
|
---|
| 1189 |
|
---|
[51092] | 1190 | int RemoteUSBBackend::reapURB(const void *pvBody, uint32_t cbBody)
|
---|
[31891] | 1191 | {
|
---|
[94965] | 1192 | int vrc = VINF_SUCCESS;
|
---|
[31891] | 1193 |
|
---|
| 1194 | LogFlow(("RemoteUSBBackend::reapURB: pvBody = %p, cbBody = %d\n", pvBody, cbBody));
|
---|
| 1195 |
|
---|
[33004] | 1196 | VRDEUSBREQREAPURBBODY *pBody = (VRDEUSBREQREAPURBBODY *)pvBody;
|
---|
[31891] | 1197 |
|
---|
[96988] | 1198 | /* 'pvBody' memory buffer can contain multiple URBs. */
|
---|
[51092] | 1199 | while (cbBody >= sizeof(VRDEUSBREQREAPURBBODY))
|
---|
[31891] | 1200 | {
|
---|
| 1201 | Log(("RemoteUSBBackend::reapURB: id = %d, flags = %02X, error = %d, handle %d, len = %d.\n",
|
---|
| 1202 | pBody->id, pBody->flags, pBody->error, pBody->handle, pBody->len));
|
---|
| 1203 |
|
---|
| 1204 | uint8_t fu8ReapValidFlags;
|
---|
| 1205 |
|
---|
[33004] | 1206 | if (mClientVersion == VRDE_USB_VERSION_1 || mClientVersion == VRDE_USB_VERSION_2)
|
---|
[31891] | 1207 | {
|
---|
[33004] | 1208 | fu8ReapValidFlags = VRDE_USB_REAP_VALID_FLAGS;
|
---|
[31891] | 1209 | }
|
---|
| 1210 | else
|
---|
| 1211 | {
|
---|
[33004] | 1212 | fu8ReapValidFlags = VRDE_USB_REAP_VALID_FLAGS_3;
|
---|
[31891] | 1213 | }
|
---|
| 1214 |
|
---|
| 1215 | /* Verify client's data. */
|
---|
| 1216 | if ( (pBody->flags & ~fu8ReapValidFlags) != 0
|
---|
| 1217 | || pBody->handle == 0)
|
---|
| 1218 | {
|
---|
| 1219 | LogFlow(("RemoteUSBBackend::reapURB: WARNING: invalid reply data. Skipping the reply.\n"));
|
---|
[94965] | 1220 | vrc = VERR_INVALID_PARAMETER;
|
---|
[31891] | 1221 | break;
|
---|
| 1222 | }
|
---|
| 1223 |
|
---|
[51092] | 1224 | PREMOTEUSBDEVICE pDevice = deviceFromId(pBody->id);
|
---|
[31891] | 1225 |
|
---|
| 1226 | if (!pDevice)
|
---|
| 1227 | {
|
---|
| 1228 | LogFlow(("RemoteUSBBackend::reapURB: WARNING: invalid device id. Skipping the reply.\n"));
|
---|
[94965] | 1229 | vrc = VERR_INVALID_PARAMETER;
|
---|
[31891] | 1230 | break;
|
---|
| 1231 | }
|
---|
| 1232 |
|
---|
[96988] | 1233 | uint32_t cbBodyData = 0; /* Data contained in the URB body structure for input URBs. i.e. beyond VRDEUSBREQREAPURBBODY. */
|
---|
[31891] | 1234 |
|
---|
[51092] | 1235 | requestDevice(pDevice);
|
---|
[31891] | 1236 |
|
---|
| 1237 | /* Search the queued URB for given handle. */
|
---|
| 1238 | REMOTEUSBQURB *qurb = pDevice->pHeadQURBs;
|
---|
| 1239 |
|
---|
| 1240 | while (qurb && qurb->u32Handle != pBody->handle)
|
---|
| 1241 | {
|
---|
| 1242 | LogFlow(("RemoteUSBBackend::reapURB: searching: %p handle = %d.\n", qurb, qurb->u32Handle));
|
---|
| 1243 | qurb = qurb->next;
|
---|
| 1244 | }
|
---|
| 1245 |
|
---|
| 1246 | if (!qurb)
|
---|
| 1247 | {
|
---|
| 1248 | LogFlow(("RemoteUSBBackend::reapURB: Queued URB not found, probably already canceled. Skipping the URB.\n"));
|
---|
| 1249 | }
|
---|
| 1250 | else
|
---|
| 1251 | {
|
---|
[96988] | 1252 | LogFlow(("RemoteUSBBackend::reapURB: qurb = %p, u32Err = %d\n", qurb, qurb->u32Err));
|
---|
[31891] | 1253 |
|
---|
[96988] | 1254 | /* Update the URB error field, if it does not yet indicate an error. */
|
---|
| 1255 | if (qurb->u32Err == VUSBSTATUS_OK)
|
---|
[31891] | 1256 | {
|
---|
[96988] | 1257 | if (mClientVersion == VRDE_USB_VERSION_1)
|
---|
[31891] | 1258 | {
|
---|
[96988] | 1259 | switch(pBody->error)
|
---|
| 1260 | {
|
---|
| 1261 | case VRDE_USB_XFER_OK: qurb->u32Err = VUSBSTATUS_OK; break;
|
---|
| 1262 | case VRDE_USB_XFER_STALL: qurb->u32Err = VUSBSTATUS_STALL; break;
|
---|
| 1263 | case VRDE_USB_XFER_DNR: qurb->u32Err = VUSBSTATUS_DNR; break;
|
---|
| 1264 | case VRDE_USB_XFER_CRC: qurb->u32Err = VUSBSTATUS_CRC; break;
|
---|
| 1265 | default: Log(("RemoteUSBBackend::reapURB: Invalid error %d\n", pBody->error));
|
---|
| 1266 | qurb->u32Err = VUSBSTATUS_DNR; break;
|
---|
| 1267 | }
|
---|
[31891] | 1268 | }
|
---|
[96988] | 1269 | else if ( mClientVersion == VRDE_USB_VERSION_2
|
---|
| 1270 | || mClientVersion == VRDE_USB_VERSION_3)
|
---|
[31891] | 1271 | {
|
---|
[96988] | 1272 | switch(pBody->error)
|
---|
| 1273 | {
|
---|
| 1274 | case VRDE_USB_XFER_OK: qurb->u32Err = VUSBSTATUS_OK; break;
|
---|
| 1275 | case VRDE_USB_XFER_STALL: qurb->u32Err = VUSBSTATUS_STALL; break;
|
---|
| 1276 | case VRDE_USB_XFER_DNR: qurb->u32Err = VUSBSTATUS_DNR; break;
|
---|
| 1277 | case VRDE_USB_XFER_CRC: qurb->u32Err = VUSBSTATUS_CRC; break;
|
---|
| 1278 | case VRDE_USB_XFER_DO: qurb->u32Err = VUSBSTATUS_DATA_OVERRUN; break;
|
---|
| 1279 | case VRDE_USB_XFER_DU: qurb->u32Err = VUSBSTATUS_DATA_UNDERRUN; break;
|
---|
[31891] | 1280 |
|
---|
[96988] | 1281 | /* Unmapped errors. */
|
---|
| 1282 | case VRDE_USB_XFER_BS:
|
---|
| 1283 | case VRDE_USB_XFER_DTM:
|
---|
| 1284 | case VRDE_USB_XFER_PCF:
|
---|
| 1285 | case VRDE_USB_XFER_UPID:
|
---|
| 1286 | case VRDE_USB_XFER_BO:
|
---|
| 1287 | case VRDE_USB_XFER_BU:
|
---|
| 1288 | case VRDE_USB_XFER_ERR:
|
---|
| 1289 | default: Log(("RemoteUSBBackend::reapURB: Invalid error %d\n", pBody->error));
|
---|
| 1290 | qurb->u32Err = VUSBSTATUS_DNR; break;
|
---|
| 1291 | }
|
---|
[31891] | 1292 | }
|
---|
[96988] | 1293 | else
|
---|
| 1294 | {
|
---|
| 1295 | qurb->u32Err = VUSBSTATUS_DNR;
|
---|
| 1296 | }
|
---|
[31891] | 1297 | }
|
---|
| 1298 |
|
---|
[96988] | 1299 | /* Get the URB data. The URB is completed unless the client tells that this is a fragment of an IN URB. */
|
---|
[31891] | 1300 | bool fURBCompleted = true;
|
---|
| 1301 |
|
---|
| 1302 | if (qurb->fInput)
|
---|
| 1303 | {
|
---|
[96988] | 1304 | if (pBody->len <= cbBody - sizeof(VRDEUSBREQREAPURBBODY))
|
---|
| 1305 | cbBodyData = pBody->len; /* VRDE_USB_DIRECTION_IN URBs include some data. */
|
---|
| 1306 | else
|
---|
[31891] | 1307 | {
|
---|
[96988] | 1308 | cbBodyData = cbBody - sizeof(VRDEUSBREQREAPURBBODY);
|
---|
[31891] | 1309 | qurb->u32Err = VUSBSTATUS_DNR;
|
---|
| 1310 | }
|
---|
[96988] | 1311 |
|
---|
| 1312 | if (qurb->u32Err == VUSBSTATUS_OK)
|
---|
[31891] | 1313 | {
|
---|
[96988] | 1314 | LogFlow(("RemoteUSBBackend::reapURB: copying data %d bytes\n", pBody->len));
|
---|
| 1315 | if (pBody->len > qurb->u32Len - qurb->u32TransferredLen)
|
---|
| 1316 | {
|
---|
| 1317 | /* Received more data than expected for this URB. If there more fragments follow,
|
---|
| 1318 | * they will be discarded because the URB handle will not be valid anymore.
|
---|
| 1319 | */
|
---|
| 1320 | qurb->u32Err = VUSBSTATUS_DNR;
|
---|
| 1321 | qurb->u32TransferredLen = qurb->u32Len;
|
---|
| 1322 | }
|
---|
| 1323 | else
|
---|
| 1324 | {
|
---|
| 1325 | memcpy ((uint8_t *)qurb->pvData + qurb->u32TransferredLen, &pBody[1], pBody->len);
|
---|
| 1326 | qurb->u32TransferredLen += pBody->len;
|
---|
| 1327 | }
|
---|
[31891] | 1328 |
|
---|
[96988] | 1329 | if ( qurb->u32Err == VUSBSTATUS_OK
|
---|
| 1330 | && (pBody->flags & VRDE_USB_REAP_FLAG_FRAGMENT) != 0)
|
---|
| 1331 | {
|
---|
| 1332 | /* If the client sends fragmented packets, accumulate the URB data. */
|
---|
| 1333 | fURBCompleted = false;
|
---|
| 1334 | }
|
---|
[31891] | 1335 | }
|
---|
| 1336 | }
|
---|
[96988] | 1337 | else
|
---|
| 1338 | qurb->u32TransferredLen += pBody->len; /* Update the value for OUT URBs. */
|
---|
[31891] | 1339 |
|
---|
| 1340 | if (fURBCompleted)
|
---|
| 1341 | {
|
---|
[38986] | 1342 | /* Move the URB near the head of URB list, so that iface_ReapURB can
|
---|
| 1343 | * find it faster. Note that the order of completion must be preserved!
|
---|
| 1344 | */
|
---|
[31891] | 1345 | if (qurb->prev)
|
---|
| 1346 | {
|
---|
[38986] | 1347 | /* The URB is not in the head. Unlink it from its current position. */
|
---|
[31891] | 1348 | qurb->prev->next = qurb->next;
|
---|
| 1349 |
|
---|
| 1350 | if (qurb->next)
|
---|
| 1351 | {
|
---|
| 1352 | qurb->next->prev = qurb->prev;
|
---|
| 1353 | }
|
---|
| 1354 | else
|
---|
| 1355 | {
|
---|
| 1356 | pDevice->pTailQURBs = qurb->prev;
|
---|
| 1357 | }
|
---|
| 1358 |
|
---|
[38986] | 1359 | /* And insert it to its new place. */
|
---|
| 1360 | if (pDevice->pHeadQURBs->fCompleted)
|
---|
| 1361 | {
|
---|
[48955] | 1362 | /* At least one other completed URB; insert after the
|
---|
[38986] | 1363 | * last completed URB.
|
---|
| 1364 | */
|
---|
| 1365 | REMOTEUSBQURB *prev_qurb = pDevice->pHeadQURBs;
|
---|
| 1366 | while (prev_qurb->next && prev_qurb->next->fCompleted)
|
---|
| 1367 | prev_qurb = prev_qurb->next;
|
---|
[31891] | 1368 |
|
---|
[38986] | 1369 | qurb->next = prev_qurb->next;
|
---|
| 1370 | qurb->prev = prev_qurb;
|
---|
| 1371 |
|
---|
| 1372 | if (prev_qurb->next)
|
---|
| 1373 | prev_qurb->next->prev = qurb;
|
---|
| 1374 | else
|
---|
| 1375 | pDevice->pTailQURBs = qurb;
|
---|
| 1376 | prev_qurb->next = qurb;
|
---|
| 1377 | }
|
---|
| 1378 | else
|
---|
| 1379 | {
|
---|
| 1380 | /* No other completed URBs; insert at head. */
|
---|
| 1381 | qurb->next = pDevice->pHeadQURBs;
|
---|
| 1382 | qurb->prev = NULL;
|
---|
[48955] | 1383 |
|
---|
[38986] | 1384 | pDevice->pHeadQURBs->prev = qurb;
|
---|
| 1385 | pDevice->pHeadQURBs = qurb;
|
---|
| 1386 | }
|
---|
[31891] | 1387 | }
|
---|
| 1388 |
|
---|
| 1389 | qurb->u32Len = qurb->u32TransferredLen; /* Update the final length. */
|
---|
| 1390 | qurb->fCompleted = true;
|
---|
| 1391 | }
|
---|
| 1392 | }
|
---|
| 1393 |
|
---|
| 1394 | releaseDevice (pDevice);
|
---|
| 1395 |
|
---|
[33004] | 1396 | if (pBody->flags & VRDE_USB_REAP_FLAG_LAST)
|
---|
[31891] | 1397 | {
|
---|
| 1398 | break;
|
---|
| 1399 | }
|
---|
| 1400 |
|
---|
| 1401 | /* There is probably a further URB body. */
|
---|
[96988] | 1402 | if (cbBodyData > cbBody - sizeof(VRDEUSBREQREAPURBBODY))
|
---|
[31891] | 1403 | {
|
---|
[94965] | 1404 | vrc = VERR_INVALID_PARAMETER;
|
---|
[31891] | 1405 | break;
|
---|
| 1406 | }
|
---|
| 1407 |
|
---|
[96988] | 1408 | cbBody -= sizeof(VRDEUSBREQREAPURBBODY) + cbBodyData;
|
---|
| 1409 | pBody = (VRDEUSBREQREAPURBBODY *)((uint8_t *)pBody + sizeof(VRDEUSBREQREAPURBBODY) + cbBodyData);
|
---|
[31891] | 1410 | }
|
---|
| 1411 |
|
---|
[94965] | 1412 | LogFlow(("RemoteUSBBackend::reapURB: returns %Rrc\n", vrc));
|
---|
[31891] | 1413 |
|
---|
[94965] | 1414 | return vrc;
|
---|
[31891] | 1415 | }
|
---|
| 1416 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
|
---|