[23599] | 1 | /* $Id: ConsoleImplTeleporter.cpp 25310 2009-12-10 17:06:44Z vboxsync $ */
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| 2 | /** @file
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[23801] | 3 | * VBox Console COM Class implementation, The Teleporter Part.
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[23599] | 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2009 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 19 | * additional information or have any questions.
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| 20 | */
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| 21 |
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[23686] | 22 |
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[23599] | 23 | /*******************************************************************************
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| 24 | * Header Files *
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| 25 | *******************************************************************************/
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| 26 | #include "ConsoleImpl.h"
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[23663] | 27 | #include "Global.h"
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[23599] | 28 | #include "Logging.h"
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[23663] | 29 | #include "ProgressImpl.h"
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[23599] | 30 |
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[23626] | 31 | #include <iprt/err.h>
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| 32 | #include <iprt/rand.h>
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| 33 | #include <iprt/tcp.h>
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| 34 | #include <iprt/timer.h>
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| 35 |
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[23599] | 36 | #include <VBox/vmapi.h>
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| 37 | #include <VBox/ssm.h>
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| 38 | #include <VBox/err.h>
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| 39 | #include <VBox/version.h>
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| 40 | #include <VBox/com/string.h>
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| 41 |
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| 42 |
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[23626] | 43 | /*******************************************************************************
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| 44 | * Structures and Typedefs *
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| 45 | *******************************************************************************/
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| 46 | /**
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[23801] | 47 | * Base class for the teleporter state.
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[23663] | 48 | *
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| 49 | * These classes are used as advanced structs, not as proper classes.
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[23626] | 50 | */
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[23801] | 51 | class TeleporterState
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[23626] | 52 | {
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[23663] | 53 | public:
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| 54 | ComPtr<Console> mptrConsole;
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| 55 | PVM mpVM;
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[23810] | 56 | ComObjPtr<Progress> mptrProgress;
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[23663] | 57 | Utf8Str mstrPassword;
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[23686] | 58 | bool const mfIsSource;
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[23626] | 59 |
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[23663] | 60 | /** @name stream stuff
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| 61 | * @{ */
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| 62 | RTSOCKET mhSocket;
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| 63 | uint64_t moffStream;
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[23686] | 64 | uint32_t mcbReadBlock;
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[23669] | 65 | bool volatile mfStopReading;
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[23686] | 66 | bool volatile mfEndOfStream;
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| 67 | bool volatile mfIOError;
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[23663] | 68 | /** @} */
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[23626] | 69 |
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[23810] | 70 | TeleporterState(Console *pConsole, PVM pVM, Progress *pProgress, bool fIsSource)
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[23663] | 71 | : mptrConsole(pConsole)
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| 72 | , mpVM(pVM)
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[23810] | 73 | , mptrProgress(pProgress)
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[23686] | 74 | , mfIsSource(fIsSource)
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[23663] | 75 | , mhSocket(NIL_RTSOCKET)
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| 76 | , moffStream(UINT64_MAX / 2)
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[23686] | 77 | , mcbReadBlock(0)
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[23669] | 78 | , mfStopReading(false)
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[23686] | 79 | , mfEndOfStream(false)
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| 80 | , mfIOError(false)
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[23663] | 81 | {
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| 82 | }
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| 83 | };
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| 84 |
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| 85 |
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| 86 | /**
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[23801] | 87 | * Teleporter state used by the source side.
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[23663] | 88 | */
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[23801] | 89 | class TeleporterStateSrc : public TeleporterState
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[23663] | 90 | {
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| 91 | public:
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| 92 | Utf8Str mstrHostname;
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| 93 | uint32_t muPort;
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[24874] | 94 | uint32_t mcMsMaxDowntime;
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[23904] | 95 | MachineState_T menmOldMachineState;
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[24353] | 96 | bool mfSuspendedByUs;
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[24558] | 97 | bool mfUnlockedMedia;
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[23663] | 98 |
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[23904] | 99 | TeleporterStateSrc(Console *pConsole, PVM pVM, Progress *pProgress, MachineState_T enmOldMachineState)
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[23810] | 100 | : TeleporterState(pConsole, pVM, pProgress, true /*fIsSource*/)
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[23663] | 101 | , muPort(UINT32_MAX)
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[24874] | 102 | , mcMsMaxDowntime(250)
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[23904] | 103 | , menmOldMachineState(enmOldMachineState)
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[24353] | 104 | , mfSuspendedByUs(false)
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[24558] | 105 | , mfUnlockedMedia(false)
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[23663] | 106 | {
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| 107 | }
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| 108 | };
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| 109 |
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| 110 |
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| 111 | /**
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[23801] | 112 | * Teleporter state used by the destiation side.
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[23663] | 113 | */
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[23801] | 114 | class TeleporterStateTrg : public TeleporterState
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[23663] | 115 | {
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| 116 | public:
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[24558] | 117 | IMachine *mpMachine;
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| 118 | IInternalMachineControl *mpControl;
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| 119 | PRTTCPSERVER mhServer;
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| 120 | PRTTIMERLR mphTimerLR;
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| 121 | bool mfLockedMedia;
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| 122 | int mRc;
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[23663] | 123 |
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[23810] | 124 | TeleporterStateTrg(Console *pConsole, PVM pVM, Progress *pProgress,
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[24558] | 125 | IMachine *pMachine, IInternalMachineControl *pControl,
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| 126 | PRTTIMERLR phTimerLR, bool fStartPaused)
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[23810] | 127 | : TeleporterState(pConsole, pVM, pProgress, false /*fIsSource*/)
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[23663] | 128 | , mpMachine(pMachine)
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[24558] | 129 | , mpControl(pControl)
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[23669] | 130 | , mhServer(NULL)
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[23692] | 131 | , mphTimerLR(phTimerLR)
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[24558] | 132 | , mfLockedMedia(false)
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[23663] | 133 | , mRc(VINF_SUCCESS)
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| 134 | {
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| 135 | }
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| 136 | };
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| 137 |
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| 138 |
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[23686] | 139 | /**
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| 140 | * TCP stream header.
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| 141 | *
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| 142 | * This is an extra layer for fixing the problem with figuring out when the SSM
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| 143 | * stream ends.
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| 144 | */
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[23801] | 145 | typedef struct TELEPORTERTCPHDR
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[23686] | 146 | {
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| 147 | /** Magic value. */
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| 148 | uint32_t u32Magic;
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| 149 | /** The size of the data block following this header.
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[24917] | 150 | * 0 indicates the end of the stream, while UINT32_MAX indicates
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| 151 | * cancelation. */
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[23686] | 152 | uint32_t cb;
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[23801] | 153 | } TELEPORTERTCPHDR;
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| 154 | /** Magic value for TELEPORTERTCPHDR::u32Magic. (Egberto Gismonti Amin) */
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| 155 | #define TELEPORTERTCPHDR_MAGIC UINT32_C(0x19471205)
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[23686] | 156 | /** The max block size. */
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[23801] | 157 | #define TELEPORTERTCPHDR_MAX_SIZE UINT32_C(0x00fffff8)
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[23663] | 158 |
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[23686] | 159 |
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[23626] | 160 | /*******************************************************************************
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| 161 | * Global Variables *
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| 162 | *******************************************************************************/
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[23801] | 163 | static const char g_szWelcome[] = "VirtualBox-Teleporter-1.0\n";
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[23626] | 164 |
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| 165 |
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[23633] | 166 | /**
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[23663] | 167 | * Reads a string from the socket.
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| 168 | *
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| 169 | * @returns VBox status code.
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| 170 | *
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[23801] | 171 | * @param pState The teleporter state structure.
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[23663] | 172 | * @param pszBuf The output buffer.
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| 173 | * @param cchBuf The size of the output buffer.
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| 174 | *
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| 175 | */
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[23801] | 176 | static int teleporterTcpReadLine(TeleporterState *pState, char *pszBuf, size_t cchBuf)
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[23663] | 177 | {
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| 178 | char *pszStart = pszBuf;
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| 179 | RTSOCKET Sock = pState->mhSocket;
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| 180 |
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| 181 | AssertReturn(cchBuf > 1, VERR_INTERNAL_ERROR);
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[23721] | 182 | *pszBuf = '\0';
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[23663] | 183 |
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[23721] | 184 | /* dead simple approach. */
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[23663] | 185 | for (;;)
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| 186 | {
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| 187 | char ch;
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| 188 | int rc = RTTcpRead(Sock, &ch, sizeof(ch), NULL);
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| 189 | if (RT_FAILURE(rc))
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| 190 | {
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[23801] | 191 | LogRel(("Teleporter: RTTcpRead -> %Rrc while reading string ('%s')\n", rc, pszStart));
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[23663] | 192 | return rc;
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| 193 | }
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| 194 | if ( ch == '\n'
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| 195 | || ch == '\0')
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| 196 | return VINF_SUCCESS;
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| 197 | if (cchBuf <= 1)
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| 198 | {
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[23801] | 199 | LogRel(("Teleporter: String buffer overflow: '%s'\n", pszStart));
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[23663] | 200 | return VERR_BUFFER_OVERFLOW;
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| 201 | }
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| 202 | *pszBuf++ = ch;
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[23721] | 203 | *pszBuf = '\0';
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[23663] | 204 | cchBuf--;
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| 205 | }
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| 206 | }
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| 207 |
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| 208 |
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| 209 | /**
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| 210 | * Reads an ACK or NACK.
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| 211 | *
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| 212 | * @returns S_OK on ACK, E_FAIL+setError() on failure or NACK.
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[23801] | 213 | * @param pState The teleporter source state.
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[23703] | 214 | * @param pszWhich Which ACK is this this?
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[23669] | 215 | * @param pszNAckMsg Optional NACK message.
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[23663] | 216 | *
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| 217 | * @remarks the setError laziness forces this to be a Console member.
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| 218 | */
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| 219 | HRESULT
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[23801] | 220 | Console::teleporterSrcReadACK(TeleporterStateSrc *pState, const char *pszWhich,
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[23703] | 221 | const char *pszNAckMsg /*= NULL*/)
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[23663] | 222 | {
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| 223 | char szMsg[128];
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[23801] | 224 | int vrc = teleporterTcpReadLine(pState, szMsg, sizeof(szMsg));
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[23663] | 225 | if (RT_FAILURE(vrc))
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[23703] | 226 | return setError(E_FAIL, tr("Failed reading ACK(%s): %Rrc"), pszWhich, vrc);
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[23669] | 227 | if (strcmp(szMsg, "ACK"))
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[23663] | 228 | {
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[23692] | 229 | if (!strncmp(szMsg, "NACK=", sizeof("NACK=") - 1))
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| 230 | {
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| 231 | int32_t vrc2;
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| 232 | vrc = RTStrToInt32Full(&szMsg[sizeof("NACK=") - 1], 10, &vrc2);
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| 233 | if (vrc == VINF_SUCCESS)
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| 234 | {
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| 235 | if (pszNAckMsg)
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| 236 | {
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[23801] | 237 | LogRel(("Teleporter: %s: NACK=%Rrc (%d)\n", pszWhich, vrc2, vrc2));
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[23692] | 238 | return setError(E_FAIL, pszNAckMsg);
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| 239 | }
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[23703] | 240 | return setError(E_FAIL, "NACK(%s) - %Rrc (%d)", pszWhich, vrc2, vrc2);
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[23692] | 241 | }
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| 242 | }
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[23703] | 243 | return setError(E_FAIL, tr("%s: Expected ACK or NACK, got '%s'"), pszWhich, szMsg);
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[23663] | 244 | }
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| 245 | return S_OK;
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| 246 | }
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| 247 |
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[23686] | 248 |
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[23663] | 249 | /**
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| 250 | * Submitts a command to the destination and waits for the ACK.
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| 251 | *
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| 252 | * @returns S_OK on ACKed command, E_FAIL+setError() on failure.
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| 253 | *
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[23801] | 254 | * @param pState The teleporter source state.
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[23663] | 255 | * @param pszCommand The command.
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[23827] | 256 | * @param fWaitForAck Whether to wait for the ACK.
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[23663] | 257 | *
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| 258 | * @remarks the setError laziness forces this to be a Console member.
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| 259 | */
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| 260 | HRESULT
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[23827] | 261 | Console::teleporterSrcSubmitCommand(TeleporterStateSrc *pState, const char *pszCommand, bool fWaitForAck /*= true*/)
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[23663] | 262 | {
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| 263 | size_t cchCommand = strlen(pszCommand);
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| 264 | int vrc = RTTcpWrite(pState->mhSocket, pszCommand, cchCommand);
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| 265 | if (RT_SUCCESS(vrc))
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| 266 | vrc = RTTcpWrite(pState->mhSocket, "\n", sizeof("\n") - 1);
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[23703] | 267 | if (RT_SUCCESS(vrc))
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| 268 | vrc = RTTcpFlush(pState->mhSocket);
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[23663] | 269 | if (RT_FAILURE(vrc))
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| 270 | return setError(E_FAIL, tr("Failed writing command '%s': %Rrc"), pszCommand, vrc);
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[23827] | 271 | if (!fWaitForAck)
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| 272 | return S_OK;
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[23801] | 273 | return teleporterSrcReadACK(pState, pszCommand);
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[23663] | 274 | }
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| 275 |
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| 276 |
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| 277 | /**
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[23633] | 278 | * @copydoc SSMSTRMOPS::pfnWrite
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| 279 | */
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[23801] | 280 | static DECLCALLBACK(int) teleporterTcpOpWrite(void *pvUser, uint64_t offStream, const void *pvBuf, size_t cbToWrite)
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[23633] | 281 | {
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[23801] | 282 | TeleporterState *pState = (TeleporterState *)pvUser;
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[23686] | 283 |
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| 284 | AssertReturn(cbToWrite > 0, VINF_SUCCESS);
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[24365] | 285 | AssertReturn(cbToWrite < UINT32_MAX, VERR_OUT_OF_RANGE);
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[23686] | 286 | AssertReturn(pState->mfIsSource, VERR_INVALID_HANDLE);
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| 287 |
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| 288 | for (;;)
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[23633] | 289 | {
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[23686] | 290 | /* Write block header. */
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[23801] | 291 | TELEPORTERTCPHDR Hdr;
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| 292 | Hdr.u32Magic = TELEPORTERTCPHDR_MAGIC;
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[24365] | 293 | Hdr.cb = RT_MIN((uint32_t)cbToWrite, TELEPORTERTCPHDR_MAX_SIZE);
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[24895] | 294 | int rc = RTTcpWrite(pState->mhSocket, &Hdr, sizeof(Hdr));
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[23686] | 295 | if (RT_FAILURE(rc))
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| 296 | {
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[23801] | 297 | LogRel(("Teleporter/TCP: Header write error: %Rrc\n", rc));
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[23686] | 298 | return rc;
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| 299 | }
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| 300 |
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| 301 | /* Write the data. */
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| 302 | rc = RTTcpWrite(pState->mhSocket, pvBuf, Hdr.cb);
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| 303 | if (RT_FAILURE(rc))
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| 304 | {
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[23801] | 305 | LogRel(("Teleporter/TCP: Data write error: %Rrc (cb=%#x)\n", rc, Hdr.cb));
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[23686] | 306 | return rc;
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| 307 | }
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| 308 | pState->moffStream += Hdr.cb;
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| 309 | if (Hdr.cb == cbToWrite)
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| 310 | return VINF_SUCCESS;
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| 311 |
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| 312 | /* advance */
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| 313 | cbToWrite -= Hdr.cb;
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| 314 | pvBuf = (uint8_t const *)pvBuf + Hdr.cb;
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[23633] | 315 | }
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[23686] | 316 | }
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| 317 |
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| 318 |
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| 319 | /**
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| 320 | * Selects and poll for close condition.
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| 321 | *
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| 322 | * We can use a relatively high poll timeout here since it's only used to get
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| 323 | * us out of error paths. In the normal cause of events, we'll get a
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| 324 | * end-of-stream header.
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| 325 | *
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| 326 | * @returns VBox status code.
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| 327 | *
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[23801] | 328 | * @param pState The teleporter state data.
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[23686] | 329 | */
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[23801] | 330 | static int teleporterTcpReadSelect(TeleporterState *pState)
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[23686] | 331 | {
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| 332 | int rc;
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| 333 | do
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| 334 | {
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| 335 | rc = RTTcpSelectOne(pState->mhSocket, 1000);
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| 336 | if (RT_FAILURE(rc) && rc != VERR_TIMEOUT)
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| 337 | {
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| 338 | pState->mfIOError = true;
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[23801] | 339 | LogRel(("Teleporter/TCP: Header select error: %Rrc\n", rc));
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[23686] | 340 | break;
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| 341 | }
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| 342 | if (pState->mfStopReading)
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| 343 | {
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| 344 | rc = VERR_EOF;
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| 345 | break;
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| 346 | }
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| 347 | } while (rc == VERR_TIMEOUT);
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[23633] | 348 | return rc;
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| 349 | }
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[23626] | 350 |
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[23633] | 351 |
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[23626] | 352 | /**
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[23633] | 353 | * @copydoc SSMSTRMOPS::pfnRead
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| 354 | */
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[23801] | 355 | static DECLCALLBACK(int) teleporterTcpOpRead(void *pvUser, uint64_t offStream, void *pvBuf, size_t cbToRead, size_t *pcbRead)
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[23633] | 356 | {
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[23801] | 357 | TeleporterState *pState = (TeleporterState *)pvUser;
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[23686] | 358 | AssertReturn(!pState->mfIsSource, VERR_INVALID_HANDLE);
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[23669] | 359 |
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| 360 | for (;;)
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[23633] | 361 | {
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[23686] | 362 | int rc;
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| 363 |
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| 364 | /*
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| 365 | * Check for various conditions and may have been signalled.
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| 366 | */
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| 367 | if (pState->mfEndOfStream)
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| 368 | return VERR_EOF;
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| 369 | if (pState->mfStopReading)
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| 370 | return VERR_EOF;
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| 371 | if (pState->mfIOError)
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| 372 | return VERR_IO_GEN_FAILURE;
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| 373 |
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| 374 | /*
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| 375 | * If there is no more data in the current block, read the next
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| 376 | * block header.
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| 377 | */
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| 378 | if (!pState->mcbReadBlock)
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[23669] | 379 | {
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[23801] | 380 | rc = teleporterTcpReadSelect(pState);
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[23669] | 381 | if (RT_FAILURE(rc))
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| 382 | return rc;
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[23801] | 383 | TELEPORTERTCPHDR Hdr;
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[23686] | 384 | rc = RTTcpRead(pState->mhSocket, &Hdr, sizeof(Hdr), NULL);
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| 385 | if (RT_FAILURE(rc))
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| 386 | {
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| 387 | pState->mfIOError = true;
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[23801] | 388 | LogRel(("Teleporter/TCP: Header read error: %Rrc\n", rc));
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[23686] | 389 | return rc;
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| 390 | }
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[24917] | 391 |
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| 392 | if (RT_UNLIKELY( Hdr.u32Magic != TELEPORTERTCPHDR_MAGIC
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| 393 | || Hdr.cb > TELEPORTERTCPHDR_MAX_SIZE
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| 394 | || Hdr.cb == 0))
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[23686] | 395 | {
|
---|
[24917] | 396 | if ( Hdr.u32Magic == TELEPORTERTCPHDR_MAGIC
|
---|
| 397 | && ( Hdr.cb == 0
|
---|
| 398 | || Hdr.cb == UINT32_MAX)
|
---|
| 399 | )
|
---|
| 400 | {
|
---|
| 401 | pState->mfEndOfStream = true;
|
---|
| 402 | pState->mcbReadBlock = 0;
|
---|
| 403 | return Hdr.cb ? VERR_SSM_CANCELLED : VERR_EOF;
|
---|
| 404 | }
|
---|
[23686] | 405 | pState->mfIOError = true;
|
---|
[23801] | 406 | LogRel(("Teleporter/TCP: Invalid block: u32Magic=%#x cb=%#x\n", Hdr.u32Magic, Hdr.cb));
|
---|
[23686] | 407 | return VERR_IO_GEN_FAILURE;
|
---|
| 408 | }
|
---|
| 409 |
|
---|
| 410 | pState->mcbReadBlock = Hdr.cb;
|
---|
| 411 | if (pState->mfStopReading)
|
---|
| 412 | return VERR_EOF;
|
---|
| 413 | }
|
---|
| 414 |
|
---|
| 415 | /*
|
---|
| 416 | * Read more data.
|
---|
| 417 | */
|
---|
[23801] | 418 | rc = teleporterTcpReadSelect(pState);
|
---|
[23686] | 419 | if (RT_FAILURE(rc))
|
---|
| 420 | return rc;
|
---|
[24365] | 421 | uint32_t cb = (uint32_t)RT_MIN(pState->mcbReadBlock, cbToRead);
|
---|
[23686] | 422 | rc = RTTcpRead(pState->mhSocket, pvBuf, cb, pcbRead);
|
---|
| 423 | if (RT_FAILURE(rc))
|
---|
| 424 | {
|
---|
| 425 | pState->mfIOError = true;
|
---|
[23801] | 426 | LogRel(("Teleporter/TCP: Data read error: %Rrc (cb=%#x)\n", rc, cb));
|
---|
[23686] | 427 | return rc;
|
---|
| 428 | }
|
---|
| 429 | if (pcbRead)
|
---|
| 430 | {
|
---|
[24365] | 431 | cb = (uint32_t)*pcbRead;
|
---|
| 432 | pState->moffStream += cb;
|
---|
| 433 | pState->mcbReadBlock -= cb;
|
---|
[23669] | 434 | return VINF_SUCCESS;
|
---|
| 435 | }
|
---|
[23686] | 436 | pState->moffStream += cb;
|
---|
| 437 | pState->mcbReadBlock -= cb;
|
---|
| 438 | if (cbToRead == cb)
|
---|
| 439 | return VINF_SUCCESS;
|
---|
| 440 |
|
---|
| 441 | /* Advance to the next block. */
|
---|
| 442 | cbToRead -= cb;
|
---|
| 443 | pvBuf = (uint8_t *)pvBuf + cb;
|
---|
[23633] | 444 | }
|
---|
| 445 | }
|
---|
| 446 |
|
---|
| 447 |
|
---|
| 448 | /**
|
---|
| 449 | * @copydoc SSMSTRMOPS::pfnSeek
|
---|
| 450 | */
|
---|
[23801] | 451 | static DECLCALLBACK(int) teleporterTcpOpSeek(void *pvUser, int64_t offSeek, unsigned uMethod, uint64_t *poffActual)
|
---|
[23633] | 452 | {
|
---|
| 453 | return VERR_NOT_SUPPORTED;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
| 456 |
|
---|
| 457 | /**
|
---|
| 458 | * @copydoc SSMSTRMOPS::pfnTell
|
---|
| 459 | */
|
---|
[23801] | 460 | static DECLCALLBACK(uint64_t) teleporterTcpOpTell(void *pvUser)
|
---|
[23633] | 461 | {
|
---|
[23801] | 462 | TeleporterState *pState = (TeleporterState *)pvUser;
|
---|
[23663] | 463 | return pState->moffStream;
|
---|
[23633] | 464 | }
|
---|
| 465 |
|
---|
| 466 |
|
---|
| 467 | /**
|
---|
| 468 | * @copydoc SSMSTRMOPS::pfnSize
|
---|
| 469 | */
|
---|
[23801] | 470 | static DECLCALLBACK(int) teleporterTcpOpSize(void *pvUser, uint64_t *pcb)
|
---|
[23633] | 471 | {
|
---|
| 472 | return VERR_NOT_SUPPORTED;
|
---|
| 473 | }
|
---|
| 474 |
|
---|
| 475 |
|
---|
| 476 | /**
|
---|
[24895] | 477 | * @copydoc SSMSTRMOPS::pfnIsOk
|
---|
| 478 | */
|
---|
| 479 | static DECLCALLBACK(int) teleporterTcpOpIsOk(void *pvUser)
|
---|
| 480 | {
|
---|
| 481 | TeleporterState *pState = (TeleporterState *)pvUser;
|
---|
| 482 |
|
---|
| 483 | if (pState->mfIsSource)
|
---|
| 484 | {
|
---|
| 485 | /* Poll for incoming NACKs and errors from the other side */
|
---|
| 486 | int rc = RTTcpSelectOne(pState->mhSocket, 0);
|
---|
| 487 | if (rc != VERR_TIMEOUT)
|
---|
| 488 | {
|
---|
| 489 | if (RT_SUCCESS(rc))
|
---|
| 490 | {
|
---|
[24896] | 491 | LogRel(("Teleporter/TCP: Incoming data detect by IsOk, assuming it is a cancellation NACK.\n"));
|
---|
[24895] | 492 | rc = VERR_SSM_CANCELLED;
|
---|
| 493 | }
|
---|
| 494 | else
|
---|
| 495 | LogRel(("Teleporter/TCP: RTTcpSelectOne -> %Rrc (IsOk).\n", rc));
|
---|
| 496 | return rc;
|
---|
| 497 | }
|
---|
| 498 | }
|
---|
| 499 |
|
---|
| 500 | return VINF_SUCCESS;
|
---|
| 501 | }
|
---|
| 502 |
|
---|
| 503 |
|
---|
| 504 | /**
|
---|
[23633] | 505 | * @copydoc SSMSTRMOPS::pfnClose
|
---|
| 506 | */
|
---|
[24917] | 507 | static DECLCALLBACK(int) teleporterTcpOpClose(void *pvUser, bool fCancelled)
|
---|
[23633] | 508 | {
|
---|
[23801] | 509 | TeleporterState *pState = (TeleporterState *)pvUser;
|
---|
[23686] | 510 |
|
---|
| 511 | if (pState->mfIsSource)
|
---|
| 512 | {
|
---|
[24917] | 513 | TELEPORTERTCPHDR EofHdr;
|
---|
| 514 | EofHdr.u32Magic = TELEPORTERTCPHDR_MAGIC;
|
---|
| 515 | EofHdr.cb = fCancelled ? UINT32_MAX : 0;
|
---|
[23686] | 516 | int rc = RTTcpWrite(pState->mhSocket, &EofHdr, sizeof(EofHdr));
|
---|
[23703] | 517 | if (RT_SUCCESS(rc))
|
---|
| 518 | rc = RTTcpFlush(pState->mhSocket);
|
---|
[23686] | 519 | if (RT_FAILURE(rc))
|
---|
| 520 | {
|
---|
[23801] | 521 | LogRel(("Teleporter/TCP: EOF Header write error: %Rrc\n", rc));
|
---|
[23686] | 522 | return rc;
|
---|
| 523 | }
|
---|
| 524 | }
|
---|
| 525 | else
|
---|
| 526 | {
|
---|
| 527 | ASMAtomicWriteBool(&pState->mfStopReading, true);
|
---|
| 528 | RTTcpFlush(pState->mhSocket);
|
---|
| 529 | }
|
---|
| 530 |
|
---|
[23633] | 531 | return VINF_SUCCESS;
|
---|
| 532 | }
|
---|
| 533 |
|
---|
| 534 |
|
---|
| 535 | /**
|
---|
| 536 | * Method table for a TCP based stream.
|
---|
| 537 | */
|
---|
[23801] | 538 | static SSMSTRMOPS const g_teleporterTcpOps =
|
---|
[23633] | 539 | {
|
---|
| 540 | SSMSTRMOPS_VERSION,
|
---|
[23801] | 541 | teleporterTcpOpWrite,
|
---|
| 542 | teleporterTcpOpRead,
|
---|
| 543 | teleporterTcpOpSeek,
|
---|
| 544 | teleporterTcpOpTell,
|
---|
| 545 | teleporterTcpOpSize,
|
---|
[24895] | 546 | teleporterTcpOpIsOk,
|
---|
[23801] | 547 | teleporterTcpOpClose,
|
---|
[23633] | 548 | SSMSTRMOPS_VERSION
|
---|
| 549 | };
|
---|
| 550 |
|
---|
| 551 |
|
---|
| 552 | /**
|
---|
[23810] | 553 | * Progress cancelation callback.
|
---|
| 554 | */
|
---|
| 555 | static void teleporterProgressCancelCallback(void *pvUser)
|
---|
| 556 | {
|
---|
| 557 | TeleporterState *pState = (TeleporterState *)pvUser;
|
---|
| 558 | SSMR3Cancel(pState->mpVM);
|
---|
| 559 | if (!pState->mfIsSource)
|
---|
| 560 | {
|
---|
| 561 | TeleporterStateTrg *pStateTrg = (TeleporterStateTrg *)pState;
|
---|
| 562 | RTTcpServerShutdown(pStateTrg->mhServer);
|
---|
| 563 | }
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | /**
|
---|
| 567 | * @copydoc PFNVMPROGRESS
|
---|
| 568 | */
|
---|
| 569 | static DECLCALLBACK(int) teleporterProgressCallback(PVM pVM, unsigned uPercent, void *pvUser)
|
---|
| 570 | {
|
---|
| 571 | TeleporterState *pState = (TeleporterState *)pvUser;
|
---|
| 572 | if (pState->mptrProgress)
|
---|
| 573 | {
|
---|
| 574 | HRESULT hrc = pState->mptrProgress->SetCurrentOperationProgress(uPercent);
|
---|
| 575 | if (FAILED(hrc))
|
---|
| 576 | {
|
---|
| 577 | /* check if the failure was caused by cancellation. */
|
---|
[23827] | 578 | BOOL fCancelled;
|
---|
| 579 | hrc = pState->mptrProgress->COMGETTER(Canceled)(&fCancelled);
|
---|
| 580 | if (SUCCEEDED(hrc) && fCancelled)
|
---|
[23810] | 581 | {
|
---|
| 582 | SSMR3Cancel(pState->mpVM);
|
---|
| 583 | return VERR_SSM_CANCELLED;
|
---|
| 584 | }
|
---|
| 585 | }
|
---|
| 586 | }
|
---|
| 587 |
|
---|
| 588 | return VINF_SUCCESS;
|
---|
| 589 | }
|
---|
| 590 |
|
---|
| 591 |
|
---|
| 592 | /**
|
---|
[23626] | 593 | * @copydoc FNRTTIMERLR
|
---|
| 594 | */
|
---|
[23810] | 595 | static DECLCALLBACK(void) teleporterDstTimeout(RTTIMERLR hTimerLR, void *pvUser, uint64_t iTick)
|
---|
[23626] | 596 | {
|
---|
| 597 | /* This is harmless for any open connections. */
|
---|
| 598 | RTTcpServerShutdown((PRTTCPSERVER)pvUser);
|
---|
| 599 | }
|
---|
| 600 |
|
---|
| 601 |
|
---|
[23633] | 602 | /**
|
---|
[23801] | 603 | * Do the teleporter.
|
---|
[23663] | 604 | *
|
---|
| 605 | * @returns VBox status code.
|
---|
[23801] | 606 | * @param pState The teleporter state.
|
---|
[23663] | 607 | */
|
---|
| 608 | HRESULT
|
---|
[23801] | 609 | Console::teleporterSrc(TeleporterStateSrc *pState)
|
---|
[23663] | 610 | {
|
---|
| 611 | AutoCaller autoCaller(this);
|
---|
[25149] | 612 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
|
---|
[23663] | 613 |
|
---|
| 614 | /*
|
---|
[23801] | 615 | * Wait for Console::Teleport to change the state.
|
---|
[23663] | 616 | */
|
---|
[25310] | 617 | { AutoWriteLock autoLock(this COMMA_LOCKVAL_SRC_POS); }
|
---|
[23663] | 618 |
|
---|
[23827] | 619 | BOOL fCancelled = TRUE;
|
---|
| 620 | HRESULT hrc = pState->mptrProgress->COMGETTER(Canceled)(&fCancelled);
|
---|
[23669] | 621 | if (FAILED(hrc))
|
---|
| 622 | return hrc;
|
---|
[23827] | 623 | if (fCancelled)
|
---|
| 624 | return setError(E_FAIL, tr("cancelled"));
|
---|
[23669] | 625 |
|
---|
[23663] | 626 | /*
|
---|
| 627 | * Try connect to the destination machine.
|
---|
| 628 | * (Note. The caller cleans up mhSocket, so we can return without worries.)
|
---|
| 629 | */
|
---|
| 630 | int vrc = RTTcpClientConnect(pState->mstrHostname.c_str(), pState->muPort, &pState->mhSocket);
|
---|
[23669] | 631 | if (RT_FAILURE(vrc))
|
---|
[23663] | 632 | return setError(E_FAIL, tr("Failed to connect to port %u on '%s': %Rrc"),
|
---|
| 633 | pState->muPort, pState->mstrHostname.c_str(), vrc);
|
---|
| 634 |
|
---|
| 635 | /* Read and check the welcome message. */
|
---|
| 636 | char szLine[RT_MAX(128, sizeof(g_szWelcome))];
|
---|
[23707] | 637 | RT_ZERO(szLine);
|
---|
[23663] | 638 | vrc = RTTcpRead(pState->mhSocket, szLine, sizeof(g_szWelcome) - 1, NULL);
|
---|
| 639 | if (RT_FAILURE(vrc))
|
---|
| 640 | return setError(E_FAIL, tr("Failed to read welcome message: %Rrc"), vrc);
|
---|
[23671] | 641 | if (strcmp(szLine, g_szWelcome))
|
---|
[23707] | 642 | return setError(E_FAIL, tr("Unexpected welcome %.*Rhxs"), sizeof(g_szWelcome) - 1, szLine);
|
---|
[23663] | 643 |
|
---|
| 644 | /* password */
|
---|
| 645 | pState->mstrPassword.append('\n');
|
---|
| 646 | vrc = RTTcpWrite(pState->mhSocket, pState->mstrPassword.c_str(), pState->mstrPassword.length());
|
---|
| 647 | if (RT_FAILURE(vrc))
|
---|
| 648 | return setError(E_FAIL, tr("Failed to send password: %Rrc"), vrc);
|
---|
| 649 |
|
---|
| 650 | /* ACK */
|
---|
[23801] | 651 | hrc = teleporterSrcReadACK(pState, "password", tr("Invalid password"));
|
---|
[23663] | 652 | if (FAILED(hrc))
|
---|
| 653 | return hrc;
|
---|
| 654 |
|
---|
| 655 | /*
|
---|
| 656 | * Start loading the state.
|
---|
[24353] | 657 | *
|
---|
| 658 | * Note! The saved state includes vital configuration data which will be
|
---|
| 659 | * verified against the VM config on the other end. This is all done
|
---|
| 660 | * in the first pass, so we should fail pretty promptly on misconfig.
|
---|
[23663] | 661 | */
|
---|
[23801] | 662 | hrc = teleporterSrcSubmitCommand(pState, "load");
|
---|
[23663] | 663 | if (FAILED(hrc))
|
---|
| 664 | return hrc;
|
---|
| 665 |
|
---|
[23801] | 666 | void *pvUser = static_cast<void *>(static_cast<TeleporterState *>(pState));
|
---|
[24874] | 667 | vrc = VMR3Teleport(pState->mpVM, pState->mcMsMaxDowntime,
|
---|
| 668 | &g_teleporterTcpOps, pvUser,
|
---|
| 669 | teleporterProgressCallback, pvUser,
|
---|
| 670 | &pState->mfSuspendedByUs);
|
---|
[23904] | 671 | if (RT_FAILURE(vrc))
|
---|
[23801] | 672 | return setError(E_FAIL, tr("VMR3Teleport -> %Rrc"), vrc);
|
---|
[23663] | 673 |
|
---|
[23801] | 674 | hrc = teleporterSrcReadACK(pState, "load-complete");
|
---|
[23663] | 675 | if (FAILED(hrc))
|
---|
| 676 | return hrc;
|
---|
| 677 |
|
---|
| 678 | /*
|
---|
[24353] | 679 | * We're at the point of no return.
|
---|
[23663] | 680 | */
|
---|
[23827] | 681 | if (!pState->mptrProgress->notifyPointOfNoReturn())
|
---|
| 682 | {
|
---|
| 683 | teleporterSrcSubmitCommand(pState, "cancel", false /*fWaitForAck*/);
|
---|
| 684 | return E_FAIL;
|
---|
| 685 | }
|
---|
[24558] | 686 |
|
---|
| 687 | /*
|
---|
[24614] | 688 | * Hand over any media which we might be sharing.
|
---|
| 689 | *
|
---|
| 690 | * Note! This is only important on localhost teleportations.
|
---|
[24558] | 691 | */
|
---|
| 692 | /** @todo Maybe we should only do this if it's a local teleportation... */
|
---|
| 693 | hrc = mControl->UnlockMedia();
|
---|
| 694 | if (FAILED(hrc))
|
---|
| 695 | return hrc;
|
---|
| 696 | pState->mfUnlockedMedia = true;
|
---|
| 697 |
|
---|
| 698 | hrc = teleporterSrcSubmitCommand(pState, "lock-media");
|
---|
| 699 | if (FAILED(hrc))
|
---|
| 700 | return hrc;
|
---|
| 701 |
|
---|
[24614] | 702 | /*
|
---|
| 703 | * The FINAL step is giving the target instructions how to proceed with the VM.
|
---|
| 704 | */
|
---|
| 705 | if ( vrc == VINF_SSM_LIVE_SUSPENDED
|
---|
| 706 | || pState->menmOldMachineState == MachineState_Paused)
|
---|
| 707 | hrc = teleporterSrcSubmitCommand(pState, "hand-over-paused");
|
---|
| 708 | else
|
---|
| 709 | hrc = teleporterSrcSubmitCommand(pState, "hand-over-resume");
|
---|
[23703] | 710 | if (FAILED(hrc))
|
---|
| 711 | return hrc;
|
---|
[23663] | 712 |
|
---|
[24353] | 713 | /*
|
---|
| 714 | * teleporterSrcThreadWrapper will do the automatic power off because it
|
---|
| 715 | * has to release the AutoVMCaller.
|
---|
| 716 | */
|
---|
[23663] | 717 | return S_OK;
|
---|
| 718 | }
|
---|
| 719 |
|
---|
| 720 |
|
---|
| 721 | /**
|
---|
| 722 | * Static thread method wrapper.
|
---|
| 723 | *
|
---|
| 724 | * @returns VINF_SUCCESS (ignored).
|
---|
| 725 | * @param hThread The thread.
|
---|
[23801] | 726 | * @param pvUser Pointer to a TeleporterStateSrc instance.
|
---|
[23663] | 727 | */
|
---|
| 728 | /*static*/ DECLCALLBACK(int)
|
---|
[23801] | 729 | Console::teleporterSrcThreadWrapper(RTTHREAD hThread, void *pvUser)
|
---|
[23663] | 730 | {
|
---|
[23801] | 731 | TeleporterStateSrc *pState = (TeleporterStateSrc *)pvUser;
|
---|
[23663] | 732 |
|
---|
[24353] | 733 | /*
|
---|
| 734 | * Console::teleporterSrc does the work, we just grab onto the VM handle
|
---|
| 735 | * and do the cleanups afterwards.
|
---|
| 736 | */
|
---|
[23703] | 737 | AutoVMCaller autoVMCaller(pState->mptrConsole);
|
---|
| 738 | HRESULT hrc = autoVMCaller.rc();
|
---|
| 739 |
|
---|
| 740 | if (SUCCEEDED(hrc))
|
---|
[23801] | 741 | hrc = pState->mptrConsole->teleporterSrc(pState);
|
---|
[23703] | 742 |
|
---|
[24614] | 743 | /* Close the connection ASAP on so that the other side can complete. */
|
---|
| 744 | if (pState->mhSocket != NIL_RTSOCKET)
|
---|
| 745 | {
|
---|
| 746 | RTTcpClientClose(pState->mhSocket);
|
---|
| 747 | pState->mhSocket = NIL_RTSOCKET;
|
---|
| 748 | }
|
---|
| 749 |
|
---|
[24365] | 750 | /* Aaarg! setMachineState trashes error info on Windows, so we have to
|
---|
| 751 | complete things here on failure instead of right before cleanup. */
|
---|
| 752 | if (FAILED(hrc))
|
---|
| 753 | pState->mptrProgress->notifyComplete(hrc);
|
---|
| 754 |
|
---|
[24353] | 755 | /* We can no longer be cancelled (success), or it doesn't matter any longer (failure). */
|
---|
[23827] | 756 | pState->mptrProgress->setCancelCallback(NULL, NULL);
|
---|
[23663] | 757 |
|
---|
[24614] | 758 | /*
|
---|
| 759 | * Write lock the console before resetting mptrCancelableProgress and
|
---|
| 760 | * fixing the state.
|
---|
| 761 | */
|
---|
[25310] | 762 | AutoWriteLock autoLock(pState->mptrConsole COMMA_LOCKVAL_SRC_POS);
|
---|
[24353] | 763 | pState->mptrConsole->mptrCancelableProgress.setNull();
|
---|
| 764 |
|
---|
| 765 | VMSTATE const enmVMState = VMR3GetState(pState->mpVM);
|
---|
| 766 | MachineState_T const enmMachineState = pState->mptrConsole->mMachineState;
|
---|
| 767 | if (SUCCEEDED(hrc))
|
---|
[23669] | 768 | {
|
---|
[24353] | 769 | /*
|
---|
| 770 | * Automatically shut down the VM on success.
|
---|
| 771 | *
|
---|
| 772 | * Note! We have to release the VM caller object or we'll deadlock in
|
---|
| 773 | * powerDown.
|
---|
| 774 | */
|
---|
| 775 | AssertLogRelMsg(enmVMState == VMSTATE_SUSPENDED, ("%s\n", VMR3GetStateName(enmVMState)));
|
---|
| 776 | AssertLogRelMsg(enmMachineState == MachineState_TeleportingPausedVM, ("%s\n", Global::stringifyMachineState(enmMachineState)));
|
---|
| 777 |
|
---|
| 778 | autoVMCaller.release();
|
---|
[24899] | 779 |
|
---|
| 780 | pState->mptrConsole->mVMIsAlreadyPoweringOff = true; /* (Make sure we stick in the TeleportingPausedVM state.) */
|
---|
[24353] | 781 | hrc = pState->mptrConsole->powerDown();
|
---|
[24899] | 782 | pState->mptrConsole->mVMIsAlreadyPoweringOff = false;
|
---|
| 783 |
|
---|
[24365] | 784 | pState->mptrProgress->notifyComplete(hrc);
|
---|
[24353] | 785 | }
|
---|
| 786 | else
|
---|
| 787 | {
|
---|
| 788 | /*
|
---|
| 789 | * Work the state machinery on failure.
|
---|
| 790 | *
|
---|
| 791 | * If the state is no longer 'Teleporting*', some other operation has
|
---|
| 792 | * canceled us and there is nothing we need to do here. In all other
|
---|
| 793 | * cases, we've failed one way or another.
|
---|
| 794 | */
|
---|
| 795 | if ( enmMachineState == MachineState_Teleporting
|
---|
| 796 | || enmMachineState == MachineState_TeleportingPausedVM
|
---|
| 797 | )
|
---|
[23669] | 798 | {
|
---|
[24558] | 799 | if (pState->mfUnlockedMedia)
|
---|
| 800 | {
|
---|
| 801 | ErrorInfoKeeper Oak;
|
---|
| 802 | HRESULT hrc2 = pState->mptrConsole->mControl->LockMedia();
|
---|
| 803 | if (FAILED(hrc2))
|
---|
| 804 | {
|
---|
| 805 | uint64_t StartMS = RTTimeMilliTS();
|
---|
| 806 | do
|
---|
| 807 | {
|
---|
| 808 | RTThreadSleep(2);
|
---|
| 809 | hrc2 = pState->mptrConsole->mControl->LockMedia();
|
---|
| 810 | } while ( FAILED(hrc2)
|
---|
| 811 | && RTTimeMilliTS() - StartMS < 2000);
|
---|
| 812 | }
|
---|
| 813 | if (SUCCEEDED(hrc2))
|
---|
| 814 | pState->mfUnlockedMedia = true;
|
---|
| 815 | else
|
---|
| 816 | LogRel(("FATAL ERROR: Failed to re-take the media locks. hrc2=%Rhrc\n", hrc2));
|
---|
| 817 | }
|
---|
| 818 |
|
---|
[23671] | 819 | switch (enmVMState)
|
---|
| 820 | {
|
---|
| 821 | case VMSTATE_RUNNING:
|
---|
| 822 | case VMSTATE_RUNNING_LS:
|
---|
| 823 | case VMSTATE_DEBUGGING:
|
---|
| 824 | case VMSTATE_DEBUGGING_LS:
|
---|
| 825 | case VMSTATE_POWERING_OFF:
|
---|
| 826 | case VMSTATE_POWERING_OFF_LS:
|
---|
| 827 | case VMSTATE_RESETTING:
|
---|
| 828 | case VMSTATE_RESETTING_LS:
|
---|
[24353] | 829 | Assert(!pState->mfSuspendedByUs);
|
---|
[24558] | 830 | Assert(!pState->mfUnlockedMedia);
|
---|
[24353] | 831 | pState->mptrConsole->setMachineState(MachineState_Running);
|
---|
[23671] | 832 | break;
|
---|
[24353] | 833 |
|
---|
[23671] | 834 | case VMSTATE_GURU_MEDITATION:
|
---|
| 835 | case VMSTATE_GURU_MEDITATION_LS:
|
---|
| 836 | pState->mptrConsole->setMachineState(MachineState_Stuck);
|
---|
| 837 | break;
|
---|
[24353] | 838 |
|
---|
| 839 | case VMSTATE_FATAL_ERROR:
|
---|
| 840 | case VMSTATE_FATAL_ERROR_LS:
|
---|
| 841 | pState->mptrConsole->setMachineState(MachineState_Paused);
|
---|
| 842 | break;
|
---|
| 843 |
|
---|
[23671] | 844 | default:
|
---|
| 845 | AssertMsgFailed(("%s\n", VMR3GetStateName(enmVMState)));
|
---|
| 846 | case VMSTATE_SUSPENDED:
|
---|
| 847 | case VMSTATE_SUSPENDED_LS:
|
---|
| 848 | case VMSTATE_SUSPENDING:
|
---|
| 849 | case VMSTATE_SUSPENDING_LS:
|
---|
| 850 | case VMSTATE_SUSPENDING_EXT_LS:
|
---|
[24558] | 851 | if (!pState->mfUnlockedMedia)
|
---|
[24353] | 852 | {
|
---|
[24558] | 853 | pState->mptrConsole->setMachineState(MachineState_Paused);
|
---|
| 854 | if (pState->mfSuspendedByUs)
|
---|
| 855 | {
|
---|
| 856 | autoLock.leave();
|
---|
| 857 | int rc = VMR3Resume(pState->mpVM);
|
---|
| 858 | AssertLogRelMsgRC(rc, ("VMR3Resume -> %Rrc\n", rc));
|
---|
| 859 | autoLock.enter();
|
---|
| 860 | }
|
---|
[24353] | 861 | }
|
---|
[24558] | 862 | else
|
---|
| 863 | {
|
---|
| 864 | /* Faking a guru meditation is the best I can think of doing here... */
|
---|
| 865 | pState->mptrConsole->setMachineState(MachineState_Stuck);
|
---|
| 866 | }
|
---|
[23671] | 867 | break;
|
---|
| 868 | }
|
---|
| 869 | }
|
---|
[23669] | 870 | }
|
---|
[24353] | 871 | autoLock.leave();
|
---|
[23669] | 872 |
|
---|
[23827] | 873 | /*
|
---|
| 874 | * Cleanup.
|
---|
| 875 | */
|
---|
[24614] | 876 | Assert(pState->mhSocket == NIL_RTSOCKET);
|
---|
[23663] | 877 | delete pState;
|
---|
| 878 |
|
---|
[23827] | 879 | return VINF_SUCCESS; /* ignored */
|
---|
[23663] | 880 | }
|
---|
| 881 |
|
---|
| 882 |
|
---|
| 883 | /**
|
---|
[23801] | 884 | * Start teleporter to the specified target.
|
---|
[23633] | 885 | *
|
---|
| 886 | * @returns COM status code.
|
---|
| 887 | *
|
---|
[24874] | 888 | * @param aHostname The name of the target host.
|
---|
| 889 | * @param aPort The TCP port number.
|
---|
| 890 | * @param aPassword The password.
|
---|
| 891 | * @param aMaxDowntime Max allowed "downtime" in milliseconds.
|
---|
| 892 | * @param aProgress Where to return the progress object.
|
---|
[23633] | 893 | */
|
---|
[23599] | 894 | STDMETHODIMP
|
---|
[24874] | 895 | Console::Teleport(IN_BSTR aHostname, ULONG aPort, IN_BSTR aPassword, ULONG aMaxDowntime, IProgress **aProgress)
|
---|
[23599] | 896 | {
|
---|
[23633] | 897 | /*
|
---|
[23663] | 898 | * Validate parameters, check+hold object status, write lock the object
|
---|
| 899 | * and validate the state.
|
---|
[23633] | 900 | */
|
---|
[23663] | 901 | CheckComArgOutPointerValid(aProgress);
|
---|
| 902 | CheckComArgStrNotEmptyOrNull(aHostname);
|
---|
| 903 | CheckComArgNotNull(aHostname);
|
---|
| 904 | CheckComArgExprMsg(aPort, aPort > 0 && aPort <= 65535, ("is %u", aPort));
|
---|
[24874] | 905 | CheckComArgExprMsg(aMaxDowntime, aMaxDowntime > 0, ("is %u", aMaxDowntime));
|
---|
[23633] | 906 |
|
---|
[23663] | 907 | AutoCaller autoCaller(this);
|
---|
[25149] | 908 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
|
---|
[23663] | 909 |
|
---|
[25310] | 910 | AutoWriteLock autoLock(this COMMA_LOCKVAL_SRC_POS);
|
---|
[23663] | 911 | LogFlowThisFunc(("mMachineState=%d\n", mMachineState));
|
---|
| 912 |
|
---|
| 913 | switch (mMachineState)
|
---|
| 914 | {
|
---|
| 915 | case MachineState_Running:
|
---|
| 916 | case MachineState_Paused:
|
---|
| 917 | break;
|
---|
| 918 |
|
---|
| 919 | default:
|
---|
| 920 | return setError(VBOX_E_INVALID_VM_STATE,
|
---|
[24301] | 921 | tr("Invalid machine state: %s (must be Running or Paused)"),
|
---|
[23663] | 922 | Global::stringifyMachineState(mMachineState));
|
---|
| 923 | }
|
---|
| 924 |
|
---|
| 925 |
|
---|
[23633] | 926 | /*
|
---|
[23663] | 927 | * Create a progress object, spawn a worker thread and change the state.
|
---|
| 928 | * Note! The thread won't start working until we release the lock.
|
---|
[23633] | 929 | */
|
---|
[24353] | 930 | LogFlowThisFunc(("Initiating TELEPORT request...\n"));
|
---|
[23633] | 931 |
|
---|
[23810] | 932 | ComObjPtr<Progress> ptrProgress;
|
---|
| 933 | HRESULT hrc = ptrProgress.createObject();
|
---|
[25149] | 934 | if (FAILED(hrc)) return hrc;
|
---|
[24353] | 935 | hrc = ptrProgress->init(static_cast<IConsole *>(this), Bstr(tr("Teleporter")), TRUE /*aCancelable*/);
|
---|
[25149] | 936 | if (FAILED(hrc)) return hrc;
|
---|
[23663] | 937 |
|
---|
[23904] | 938 | TeleporterStateSrc *pState = new TeleporterStateSrc(this, mpVM, ptrProgress, mMachineState);
|
---|
[24874] | 939 | pState->mstrPassword = aPassword;
|
---|
| 940 | pState->mstrHostname = aHostname;
|
---|
| 941 | pState->muPort = aPort;
|
---|
| 942 | pState->mcMsMaxDowntime = aMaxDowntime;
|
---|
[23663] | 943 |
|
---|
[23810] | 944 | void *pvUser = static_cast<void *>(static_cast<TeleporterState *>(pState));
|
---|
| 945 | ptrProgress->setCancelCallback(teleporterProgressCancelCallback, pvUser);
|
---|
| 946 |
|
---|
[23801] | 947 | int vrc = RTThreadCreate(NULL, Console::teleporterSrcThreadWrapper, (void *)pState, 0 /*cbStack*/,
|
---|
| 948 | RTTHREADTYPE_EMULATION, 0 /*fFlags*/, "Teleport");
|
---|
[23663] | 949 | if (RT_SUCCESS(vrc))
|
---|
[23669] | 950 | {
|
---|
[24301] | 951 | if (mMachineState == MachineState_Running)
|
---|
| 952 | hrc = setMachineState(MachineState_Teleporting);
|
---|
| 953 | else
|
---|
| 954 | hrc = setMachineState(MachineState_TeleportingPausedVM);
|
---|
[23669] | 955 | if (SUCCEEDED(hrc))
|
---|
[24353] | 956 | {
|
---|
[23810] | 957 | ptrProgress.queryInterfaceTo(aProgress);
|
---|
[24353] | 958 | mptrCancelableProgress = ptrProgress;
|
---|
| 959 | }
|
---|
[23669] | 960 | else
|
---|
[23810] | 961 | ptrProgress->Cancel();
|
---|
[23669] | 962 | }
|
---|
| 963 | else
|
---|
| 964 | {
|
---|
[23810] | 965 | ptrProgress->setCancelCallback(NULL, NULL);
|
---|
[23663] | 966 | delete pState;
|
---|
[23669] | 967 | hrc = setError(E_FAIL, tr("RTThreadCreate -> %Rrc"), vrc);
|
---|
| 968 | }
|
---|
[23663] | 969 |
|
---|
[23669] | 970 | return hrc;
|
---|
[23599] | 971 | }
|
---|
| 972 |
|
---|
[23626] | 973 |
|
---|
| 974 | /**
|
---|
| 975 | * Creates a TCP server that listens for the source machine and passes control
|
---|
[23801] | 976 | * over to Console::teleporterTrgServeConnection().
|
---|
[23626] | 977 | *
|
---|
| 978 | * @returns VBox status code.
|
---|
| 979 | * @param pVM The VM handle
|
---|
| 980 | * @param pMachine The IMachine for the virtual machine.
|
---|
[23669] | 981 | * @param fStartPaused Whether to start it in the Paused (true) or
|
---|
| 982 | * Running (false) state,
|
---|
[23810] | 983 | * @param pProgress Pointer to the progress object.
|
---|
[23841] | 984 | *
|
---|
| 985 | * @remarks The caller expects error information to be set on failure.
|
---|
| 986 | * @todo Check that all the possible failure paths sets error info...
|
---|
[23626] | 987 | */
|
---|
[23606] | 988 | int
|
---|
[23810] | 989 | Console::teleporterTrg(PVM pVM, IMachine *pMachine, bool fStartPaused, Progress *pProgress)
|
---|
[23606] | 990 | {
|
---|
| 991 | /*
|
---|
| 992 | * Get the config.
|
---|
| 993 | */
|
---|
| 994 | ULONG uPort;
|
---|
[23801] | 995 | HRESULT hrc = pMachine->COMGETTER(TeleporterPort)(&uPort);
|
---|
[23606] | 996 | if (FAILED(hrc))
|
---|
| 997 | return VERR_GENERAL_FAILURE;
|
---|
[23804] | 998 | ULONG const uPortOrg = uPort;
|
---|
[23599] | 999 |
|
---|
[23801] | 1000 | Bstr bstrAddress;
|
---|
| 1001 | hrc = pMachine->COMGETTER(TeleporterAddress)(bstrAddress.asOutParam());
|
---|
| 1002 | if (FAILED(hrc))
|
---|
| 1003 | return VERR_GENERAL_FAILURE;
|
---|
| 1004 | Utf8Str strAddress(bstrAddress);
|
---|
| 1005 | const char *pszAddress = strAddress.isEmpty() ? NULL : strAddress.c_str();
|
---|
| 1006 |
|
---|
[23606] | 1007 | Bstr bstrPassword;
|
---|
[23801] | 1008 | hrc = pMachine->COMGETTER(TeleporterPassword)(bstrPassword.asOutParam());
|
---|
[23606] | 1009 | if (FAILED(hrc))
|
---|
| 1010 | return VERR_GENERAL_FAILURE;
|
---|
| 1011 | Utf8Str strPassword(bstrPassword);
|
---|
[23669] | 1012 | strPassword.append('\n'); /* To simplify password checking. */
|
---|
[23606] | 1013 |
|
---|
| 1014 | /*
|
---|
| 1015 | * Create the TCP server.
|
---|
| 1016 | */
|
---|
[23663] | 1017 | int vrc;
|
---|
[23626] | 1018 | PRTTCPSERVER hServer;
|
---|
| 1019 | if (uPort)
|
---|
[23801] | 1020 | vrc = RTTcpServerCreateEx(pszAddress, uPort, &hServer);
|
---|
[23626] | 1021 | else
|
---|
| 1022 | {
|
---|
| 1023 | for (int cTries = 10240; cTries > 0; cTries--)
|
---|
| 1024 | {
|
---|
| 1025 | uPort = RTRandU32Ex(cTries >= 8192 ? 49152 : 1024, 65534);
|
---|
[23801] | 1026 | vrc = RTTcpServerCreateEx(pszAddress, uPort, &hServer);
|
---|
[23663] | 1027 | if (vrc != VERR_NET_ADDRESS_IN_USE)
|
---|
[23626] | 1028 | break;
|
---|
| 1029 | }
|
---|
[23663] | 1030 | if (RT_SUCCESS(vrc))
|
---|
[23626] | 1031 | {
|
---|
[23827] | 1032 | hrc = pMachine->COMSETTER(TeleporterPort)(uPort);
|
---|
[23626] | 1033 | if (FAILED(hrc))
|
---|
| 1034 | {
|
---|
| 1035 | RTTcpServerDestroy(hServer);
|
---|
| 1036 | return VERR_GENERAL_FAILURE;
|
---|
| 1037 | }
|
---|
| 1038 | }
|
---|
| 1039 | }
|
---|
[23663] | 1040 | if (RT_FAILURE(vrc))
|
---|
| 1041 | return vrc;
|
---|
[23606] | 1042 |
|
---|
[23626] | 1043 | /*
|
---|
[23633] | 1044 | * Create a one-shot timer for timing out after 5 mins.
|
---|
[23626] | 1045 | */
|
---|
[23633] | 1046 | RTTIMERLR hTimerLR;
|
---|
[23810] | 1047 | vrc = RTTimerLRCreateEx(&hTimerLR, 0 /*ns*/, RTTIMER_FLAGS_CPU_ANY, teleporterDstTimeout, hServer);
|
---|
[23663] | 1048 | if (RT_SUCCESS(vrc))
|
---|
[23626] | 1049 | {
|
---|
[23663] | 1050 | vrc = RTTimerLRStart(hTimerLR, 5*60*UINT64_C(1000000000) /*ns*/);
|
---|
| 1051 | if (RT_SUCCESS(vrc))
|
---|
[23626] | 1052 | {
|
---|
| 1053 | /*
|
---|
| 1054 | * Do the job, when it returns we're done.
|
---|
| 1055 | */
|
---|
[24989] | 1056 | TeleporterStateTrg theState(this, pVM, pProgress, pMachine, mControl, &hTimerLR, fStartPaused);
|
---|
| 1057 | theState.mstrPassword = strPassword;
|
---|
| 1058 | theState.mhServer = hServer;
|
---|
[23633] | 1059 |
|
---|
[24989] | 1060 | void *pvUser = static_cast<void *>(static_cast<TeleporterState *>(&theState));
|
---|
[23827] | 1061 | if (pProgress->setCancelCallback(teleporterProgressCancelCallback, pvUser))
|
---|
| 1062 | {
|
---|
[24878] | 1063 | LogRel(("Teleporter: Waiting for incoming VM...\n"));
|
---|
[24989] | 1064 | vrc = RTTcpServerListen(hServer, Console::teleporterTrgServeConnection, &theState);
|
---|
[23827] | 1065 | pProgress->setCancelCallback(NULL, NULL);
|
---|
[23810] | 1066 |
|
---|
[23827] | 1067 | bool fPowerOff = false;
|
---|
| 1068 | if (vrc == VERR_TCP_SERVER_STOP)
|
---|
| 1069 | {
|
---|
[24989] | 1070 | vrc = theState.mRc;
|
---|
[23827] | 1071 | /* Power off the VM on failure unless the state callback
|
---|
| 1072 | already did that. */
|
---|
[24614] | 1073 | if (RT_FAILURE(vrc))
|
---|
[23827] | 1074 | {
|
---|
| 1075 | VMSTATE enmVMState = VMR3GetState(pVM);
|
---|
| 1076 | if ( enmVMState != VMSTATE_OFF
|
---|
| 1077 | && enmVMState != VMSTATE_POWERING_OFF)
|
---|
| 1078 | fPowerOff = true;
|
---|
| 1079 | }
|
---|
| 1080 | }
|
---|
| 1081 | else if (vrc == VERR_TCP_SERVER_SHUTDOWN)
|
---|
| 1082 | {
|
---|
| 1083 | BOOL fCancelled = TRUE;
|
---|
| 1084 | hrc = pProgress->COMGETTER(Canceled)(&fCancelled);
|
---|
| 1085 | if (FAILED(hrc) || fCancelled)
|
---|
| 1086 | {
|
---|
| 1087 | setError(E_FAIL, tr("Teleporting canceled"));
|
---|
| 1088 | vrc = VERR_SSM_CANCELLED;
|
---|
| 1089 | }
|
---|
| 1090 | else
|
---|
| 1091 | {
|
---|
| 1092 | setError(E_FAIL, tr("Teleporter timed out waiting for incoming connection"));
|
---|
| 1093 | vrc = VERR_TIMEOUT;
|
---|
| 1094 | }
|
---|
| 1095 | LogRel(("Teleporter: RTTcpServerListen aborted - %Rrc\n", vrc));
|
---|
| 1096 | fPowerOff = true;
|
---|
| 1097 | }
|
---|
[23669] | 1098 | else
|
---|
[23827] | 1099 | {
|
---|
| 1100 | LogRel(("Teleporter: Unexpected RTTcpServerListen rc: %Rrc\n", vrc));
|
---|
| 1101 | vrc = VERR_IPE_UNEXPECTED_STATUS;
|
---|
| 1102 | fPowerOff = true;
|
---|
| 1103 | }
|
---|
| 1104 |
|
---|
| 1105 | if (fPowerOff)
|
---|
| 1106 | {
|
---|
| 1107 | int vrc2 = VMR3PowerOff(pVM);
|
---|
| 1108 | AssertRC(vrc2);
|
---|
| 1109 | }
|
---|
[23669] | 1110 | }
|
---|
| 1111 | else
|
---|
[23827] | 1112 | vrc = VERR_SSM_CANCELLED;
|
---|
[23626] | 1113 | }
|
---|
[23606] | 1114 |
|
---|
[23633] | 1115 | RTTimerLRDestroy(hTimerLR);
|
---|
[23626] | 1116 | }
|
---|
| 1117 | RTTcpServerDestroy(hServer);
|
---|
| 1118 |
|
---|
[23804] | 1119 | /*
|
---|
| 1120 | * If we change TeleporterPort above, set it back to it's original
|
---|
| 1121 | * value before returning.
|
---|
| 1122 | */
|
---|
| 1123 | if (uPortOrg != uPort)
|
---|
| 1124 | pMachine->COMSETTER(TeleporterPort)(uPortOrg);
|
---|
| 1125 |
|
---|
[23663] | 1126 | return vrc;
|
---|
[23606] | 1127 | }
|
---|
| 1128 |
|
---|
[23633] | 1129 |
|
---|
[24558] | 1130 | /**
|
---|
| 1131 | * Unlock the media.
|
---|
| 1132 | *
|
---|
| 1133 | * This is used in error paths.
|
---|
| 1134 | *
|
---|
| 1135 | * @param pState The teleporter state.
|
---|
| 1136 | */
|
---|
| 1137 | static void teleporterTrgUnlockMedia(TeleporterStateTrg *pState)
|
---|
| 1138 | {
|
---|
| 1139 | if (pState->mfLockedMedia)
|
---|
| 1140 | {
|
---|
| 1141 | pState->mpControl->UnlockMedia();
|
---|
| 1142 | pState->mfLockedMedia = false;
|
---|
| 1143 | }
|
---|
| 1144 | }
|
---|
| 1145 |
|
---|
| 1146 |
|
---|
[24614] | 1147 | static int teleporterTcpWriteACK(TeleporterStateTrg *pState, bool fAutomaticUnlock = true)
|
---|
[23692] | 1148 | {
|
---|
| 1149 | int rc = RTTcpWrite(pState->mhSocket, "ACK\n", sizeof("ACK\n") - 1);
|
---|
| 1150 | if (RT_FAILURE(rc))
|
---|
[24558] | 1151 | {
|
---|
[23801] | 1152 | LogRel(("Teleporter: RTTcpWrite(,ACK,) -> %Rrc\n", rc));
|
---|
[24614] | 1153 | if (fAutomaticUnlock)
|
---|
| 1154 | teleporterTrgUnlockMedia(pState);
|
---|
[24558] | 1155 | }
|
---|
[23692] | 1156 | RTTcpFlush(pState->mhSocket);
|
---|
| 1157 | return rc;
|
---|
| 1158 | }
|
---|
| 1159 |
|
---|
| 1160 |
|
---|
[23801] | 1161 | static int teleporterTcpWriteNACK(TeleporterStateTrg *pState, int32_t rc2)
|
---|
[23692] | 1162 | {
|
---|
[24558] | 1163 | /*
|
---|
| 1164 | * Unlock media sending the NACK. That way the other doesn't have to spin
|
---|
| 1165 | * waiting to regain the locks.
|
---|
| 1166 | */
|
---|
| 1167 | teleporterTrgUnlockMedia(pState);
|
---|
| 1168 |
|
---|
[23692] | 1169 | char szMsg[64];
|
---|
| 1170 | size_t cch = RTStrPrintf(szMsg, sizeof(szMsg), "NACK=%d\n", rc2);
|
---|
| 1171 | int rc = RTTcpWrite(pState->mhSocket, szMsg, cch);
|
---|
| 1172 | if (RT_FAILURE(rc))
|
---|
[23801] | 1173 | LogRel(("Teleporter: RTTcpWrite(,%s,%zu) -> %Rrc\n", szMsg, cch, rc));
|
---|
[23692] | 1174 | RTTcpFlush(pState->mhSocket);
|
---|
| 1175 | return rc;
|
---|
| 1176 | }
|
---|
| 1177 |
|
---|
| 1178 |
|
---|
[23626] | 1179 | /**
|
---|
| 1180 | * @copydoc FNRTTCPSERVE
|
---|
[23827] | 1181 | *
|
---|
| 1182 | * @returns VINF_SUCCESS or VERR_TCP_SERVER_STOP.
|
---|
[23626] | 1183 | */
|
---|
| 1184 | /*static*/ DECLCALLBACK(int)
|
---|
[23801] | 1185 | Console::teleporterTrgServeConnection(RTSOCKET Sock, void *pvUser)
|
---|
[23626] | 1186 | {
|
---|
[23801] | 1187 | TeleporterStateTrg *pState = (TeleporterStateTrg *)pvUser;
|
---|
[23669] | 1188 | pState->mhSocket = Sock;
|
---|
[23626] | 1189 |
|
---|
| 1190 | /*
|
---|
| 1191 | * Say hello.
|
---|
| 1192 | */
|
---|
[23663] | 1193 | int vrc = RTTcpWrite(Sock, g_szWelcome, sizeof(g_szWelcome) - 1);
|
---|
| 1194 | if (RT_FAILURE(vrc))
|
---|
[23626] | 1195 | {
|
---|
[23801] | 1196 | LogRel(("Teleporter: Failed to write welcome message: %Rrc\n", vrc));
|
---|
[23626] | 1197 | return VINF_SUCCESS;
|
---|
| 1198 | }
|
---|
| 1199 |
|
---|
| 1200 | /*
|
---|
[23827] | 1201 | * Password (includes '\n', see teleporterTrg).
|
---|
[23626] | 1202 | */
|
---|
[23663] | 1203 | const char *pszPassword = pState->mstrPassword.c_str();
|
---|
[23633] | 1204 | unsigned off = 0;
|
---|
[23626] | 1205 | while (pszPassword[off])
|
---|
| 1206 | {
|
---|
| 1207 | char ch;
|
---|
[23663] | 1208 | vrc = RTTcpRead(Sock, &ch, sizeof(ch), NULL);
|
---|
| 1209 | if ( RT_FAILURE(vrc)
|
---|
| 1210 | || pszPassword[off] != ch)
|
---|
[23626] | 1211 | {
|
---|
[23663] | 1212 | if (RT_FAILURE(vrc))
|
---|
[23801] | 1213 | LogRel(("Teleporter: Password read failure (off=%u): %Rrc\n", off, vrc));
|
---|
[23663] | 1214 | else
|
---|
[23801] | 1215 | LogRel(("Teleporter: Invalid password (off=%u)\n", off));
|
---|
| 1216 | teleporterTcpWriteNACK(pState, VERR_AUTHENTICATION_FAILURE);
|
---|
[23626] | 1217 | return VINF_SUCCESS;
|
---|
| 1218 | }
|
---|
| 1219 | off++;
|
---|
| 1220 | }
|
---|
[23801] | 1221 | vrc = teleporterTcpWriteACK(pState);
|
---|
[23663] | 1222 | if (RT_FAILURE(vrc))
|
---|
[23827] | 1223 | return VINF_SUCCESS;
|
---|
[24878] | 1224 | LogRel(("Teleporter: Incoming VM!\n"));
|
---|
[23692] | 1225 |
|
---|
[23827] | 1226 | /*
|
---|
| 1227 | * Stop the server and cancel the timeout timer.
|
---|
| 1228 | *
|
---|
| 1229 | * Note! After this point we must return VERR_TCP_SERVER_STOP, while prior
|
---|
| 1230 | * to it we must not return that value!
|
---|
| 1231 | */
|
---|
[23669] | 1232 | RTTcpServerShutdown(pState->mhServer);
|
---|
[23692] | 1233 | RTTimerLRDestroy(*pState->mphTimerLR);
|
---|
| 1234 | *pState->mphTimerLR = NIL_RTTIMERLR;
|
---|
[23626] | 1235 |
|
---|
| 1236 | /*
|
---|
| 1237 | * Command processing loop.
|
---|
| 1238 | */
|
---|
[24558] | 1239 | bool fDone = false;
|
---|
[23626] | 1240 | for (;;)
|
---|
| 1241 | {
|
---|
| 1242 | char szCmd[128];
|
---|
[23801] | 1243 | vrc = teleporterTcpReadLine(pState, szCmd, sizeof(szCmd));
|
---|
[23663] | 1244 | if (RT_FAILURE(vrc))
|
---|
[23626] | 1245 | break;
|
---|
| 1246 |
|
---|
[23633] | 1247 | if (!strcmp(szCmd, "load"))
|
---|
[23626] | 1248 | {
|
---|
[23801] | 1249 | vrc = teleporterTcpWriteACK(pState);
|
---|
[23663] | 1250 | if (RT_FAILURE(vrc))
|
---|
| 1251 | break;
|
---|
| 1252 |
|
---|
| 1253 | pState->moffStream = 0;
|
---|
[24989] | 1254 | void *pvUser2 = static_cast<void *>(static_cast<TeleporterState *>(pState));
|
---|
| 1255 | vrc = VMR3LoadFromStream(pState->mpVM, &g_teleporterTcpOps, pvUser2,
|
---|
| 1256 | teleporterProgressCallback, pvUser2);
|
---|
[23663] | 1257 | if (RT_FAILURE(vrc))
|
---|
[23633] | 1258 | {
|
---|
[23801] | 1259 | LogRel(("Teleporter: VMR3LoadFromStream -> %Rrc\n", vrc));
|
---|
| 1260 | teleporterTcpWriteNACK(pState, vrc);
|
---|
[23633] | 1261 | break;
|
---|
| 1262 | }
|
---|
[23663] | 1263 |
|
---|
[23721] | 1264 | /* The EOS might not have been read, make sure it is. */
|
---|
| 1265 | pState->mfStopReading = false;
|
---|
| 1266 | size_t cbRead;
|
---|
[24989] | 1267 | vrc = teleporterTcpOpRead(pvUser2, pState->moffStream, szCmd, 1, &cbRead);
|
---|
[23721] | 1268 | if (vrc != VERR_EOF)
|
---|
| 1269 | {
|
---|
[23801] | 1270 | LogRel(("Teleporter: Draining teleporterTcpOpRead -> %Rrc\n", vrc));
|
---|
| 1271 | teleporterTcpWriteNACK(pState, vrc);
|
---|
[23721] | 1272 | break;
|
---|
| 1273 | }
|
---|
| 1274 |
|
---|
[23801] | 1275 | vrc = teleporterTcpWriteACK(pState);
|
---|
[23626] | 1276 | }
|
---|
[23827] | 1277 | else if (!strcmp(szCmd, "cancel"))
|
---|
| 1278 | {
|
---|
| 1279 | /* Don't ACK this. */
|
---|
| 1280 | LogRel(("Teleporter: Received cancel command.\n"));
|
---|
| 1281 | vrc = VERR_SSM_CANCELLED;
|
---|
| 1282 | }
|
---|
[24558] | 1283 | else if (!strcmp(szCmd, "lock-media"))
|
---|
| 1284 | {
|
---|
| 1285 | HRESULT hrc = pState->mpControl->LockMedia();
|
---|
| 1286 | if (SUCCEEDED(hrc))
|
---|
| 1287 | {
|
---|
| 1288 | pState->mfLockedMedia = true;
|
---|
| 1289 | vrc = teleporterTcpWriteACK(pState);
|
---|
| 1290 | }
|
---|
| 1291 | else
|
---|
| 1292 | {
|
---|
| 1293 | vrc = VERR_FILE_LOCK_FAILED;
|
---|
| 1294 | teleporterTcpWriteNACK(pState, vrc);
|
---|
| 1295 | }
|
---|
| 1296 | }
|
---|
[24614] | 1297 | else if ( !strcmp(szCmd, "hand-over-resume")
|
---|
| 1298 | || !strcmp(szCmd, "hand-over-paused"))
|
---|
[23663] | 1299 | {
|
---|
[23827] | 1300 | /*
|
---|
[24614] | 1301 | * Point of no return.
|
---|
| 1302 | *
|
---|
| 1303 | * Note! Since we cannot tell whether a VMR3Resume failure is
|
---|
| 1304 | * destructive for the source or not, we have little choice
|
---|
| 1305 | * but to ACK it first and take any failures locally.
|
---|
| 1306 | *
|
---|
| 1307 | * Ideally, we should try resume it first and then ACK (or
|
---|
| 1308 | * NACK) the request since this would reduce latency and
|
---|
| 1309 | * make it possible to recover from some VMR3Resume failures.
|
---|
[23827] | 1310 | */
|
---|
[24558] | 1311 | if ( pState->mptrProgress->notifyPointOfNoReturn()
|
---|
| 1312 | && pState->mfLockedMedia)
|
---|
[24614] | 1313 | {
|
---|
[23827] | 1314 | vrc = teleporterTcpWriteACK(pState);
|
---|
[24614] | 1315 | if (RT_SUCCESS(vrc))
|
---|
| 1316 | {
|
---|
| 1317 | if (!strcmp(szCmd, "hand-over-resume"))
|
---|
| 1318 | vrc = VMR3Resume(pState->mpVM);
|
---|
| 1319 | else
|
---|
| 1320 | pState->mptrConsole->setMachineState(MachineState_Paused);
|
---|
| 1321 | fDone = true;
|
---|
| 1322 | break;
|
---|
| 1323 | }
|
---|
| 1324 | }
|
---|
[23827] | 1325 | else
|
---|
| 1326 | {
|
---|
[24558] | 1327 | vrc = pState->mfLockedMedia ? VERR_WRONG_ORDER : VERR_SSM_CANCELLED;
|
---|
[23827] | 1328 | teleporterTcpWriteNACK(pState, vrc);
|
---|
| 1329 | }
|
---|
[23663] | 1330 | }
|
---|
[23626] | 1331 | else
|
---|
| 1332 | {
|
---|
[23801] | 1333 | LogRel(("Teleporter: Unknown command '%s' (%.*Rhxs)\n", szCmd, strlen(szCmd), szCmd));
|
---|
[23703] | 1334 | vrc = VERR_NOT_IMPLEMENTED;
|
---|
[23801] | 1335 | teleporterTcpWriteNACK(pState, vrc);
|
---|
[23626] | 1336 | }
|
---|
[23904] | 1337 |
|
---|
| 1338 | if (RT_FAILURE(vrc))
|
---|
| 1339 | break;
|
---|
[23626] | 1340 | }
|
---|
[23669] | 1341 |
|
---|
[24558] | 1342 | if (RT_SUCCESS(vrc) && !fDone)
|
---|
| 1343 | vrc = VERR_WRONG_ORDER;
|
---|
| 1344 | if (RT_FAILURE(vrc))
|
---|
| 1345 | teleporterTrgUnlockMedia(pState);
|
---|
| 1346 |
|
---|
[23692] | 1347 | pState->mRc = vrc;
|
---|
[23663] | 1348 | pState->mhSocket = NIL_RTSOCKET;
|
---|
[23692] | 1349 | LogFlowFunc(("returns mRc=%Rrc\n", vrc));
|
---|
[23626] | 1350 | return VERR_TCP_SERVER_STOP;
|
---|
| 1351 | }
|
---|
| 1352 |
|
---|