| 1 | /* $Id: MachineLaunchVMCommonWorker.cpp 80614 2019-09-05 22:24:44Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VirtualBox Main - VM process launcher helper for VBoxSVC & VBoxSDS.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2011-2019 Oracle Corporation
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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 |
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| 18 |
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| 19 | /*********************************************************************************************************************************
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| 20 | * Header Files *
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| 21 | *********************************************************************************************************************************/
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| 22 | #include <iprt/dir.h>
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| 23 | #include <iprt/env.h>
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| 24 | #include <iprt/err.h>
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| 25 | #include <iprt/file.h>
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| 26 | #include <iprt/log.h>
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| 27 | #include <iprt/path.h>
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| 28 | #include <iprt/process.h>
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| 29 | #include "MachineLaunchVMCommonWorker.h"
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| 30 |
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| 31 |
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| 32 | /*********************************************************************************************************************************
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| 33 | * Defined Constants And Macros *
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| 34 | *********************************************************************************************************************************/
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| 35 | #if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
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| 36 | # define HOSTSUFF_EXE ".exe"
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| 37 | #else
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| 38 | # define HOSTSUFF_EXE ""
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| 39 | #endif
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| 40 |
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| 41 |
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| 42 | /**
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| 43 | * Launch a VM process.
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| 44 | *
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| 45 | * The function starts the new VM process. It is a caller's responsibility
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| 46 | * to make any checks before and after calling the function.
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| 47 | * The function is a part of both VBoxSVC and VBoxSDS, so any calls to IVirtualBox
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| 48 | * and IMachine interfaces are performed using the client API.
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| 49 | *
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| 50 | * @returns VBox status code.
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| 51 | * @retval VINF_SUCCESS when new VM process started.
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| 52 | * @retval VERR_INVALID_PARAMETER when either aMachine is not Machine interface
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| 53 | * or invalid aFrontend is specified. Hmm. Come to think of it, it
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| 54 | * could also be returned in some other cases, especially if the code
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| 55 | * is buggy, so I wouldn't rely on any exact meaning here!
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| 56 | * @retval VERR_INTERNAL_ERROR when something wrong.
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| 57 | *
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| 58 | * @param aNameOrId The Machine name or id interface the VM will start for.
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| 59 | * @param aComment The comment for new VM process.
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| 60 | * @param aFrontend The desired frontend for started VM.
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| 61 | * @param aEnvironment Additional environment variables=value pairs
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| 62 | * separated by newlines for new VM process.
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| 63 | * @param aExtraArg Extra argument for the VM process. Ignored if
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| 64 | * empty string.
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| 65 | * @param aFilename Start new VM using specified filename. Only filename
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| 66 | * without path is allowed. Default filename is used if
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| 67 | * empty.
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| 68 | * @param aFlags Flags for RTProcCreateEx functions family if
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| 69 | * required (RTPROC_FLAGS_XXX).
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| 70 | * @param aExtraData Additional data for RTProcCreateX functions family
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| 71 | * if required. Content is defined by the flags.
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| 72 | * @param aPid The PID of created process is returned here
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| 73 | */
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| 74 | int MachineLaunchVMCommonWorker(const Utf8Str &aNameOrId,
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| 75 | const Utf8Str &aComment,
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| 76 | const Utf8Str &aFrontend,
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| 77 | const Utf8Str &aEnvironment,
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| 78 | const Utf8Str &aExtraArg,
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| 79 | const Utf8Str &aFilename,
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| 80 | uint32_t aFlags,
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| 81 | void *aExtraData,
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| 82 | RTPROCESS &aPid)
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| 83 | {
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| 84 | NOREF(aNameOrId);
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| 85 | NOREF(aComment);
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| 86 | NOREF(aFlags);
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| 87 | NOREF(aExtraData);
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| 88 | NOREF(aExtraArg);
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| 89 | NOREF(aFilename);
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| 90 |
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| 91 | /* Get the path to the executable directory w/ trailing slash: */
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| 92 | char szPath[RTPATH_MAX];
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| 93 | int vrc = RTPathAppPrivateArch(szPath, sizeof(szPath));
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| 94 | AssertRCReturn(vrc, vrc);
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| 95 | size_t cbBufLeft = RTPathEnsureTrailingSeparator(szPath, sizeof(szPath));
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| 96 | AssertReturn(cbBufLeft > 0, VERR_FILENAME_TOO_LONG);
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| 97 | char *pszNamePart = &szPath[cbBufLeft]; NOREF(pszNamePart);
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| 98 | cbBufLeft = sizeof(szPath) - cbBufLeft;
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| 99 |
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| 100 | /* The process started when launching a VM with separate UI/VM processes is always
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| 101 | * the UI process, i.e. needs special handling as it won't claim the session. */
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| 102 | bool fSeparate = aFrontend.endsWith("separate", Utf8Str::CaseInsensitive); NOREF(fSeparate);
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| 103 |
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| 104 | aPid = NIL_RTPROCESS;
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| 105 |
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| 106 | RTENV hEnv = RTENV_DEFAULT;
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| 107 | if (!aEnvironment.isEmpty())
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| 108 | {
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| 109 | Utf8Str strEnvCopy(aEnvironment); /* auto release trick */
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| 110 |
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| 111 | #ifdef IN_VBOXSVC
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| 112 | /* VBoxSVC: clone the current environment */
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| 113 | vrc = RTEnvClone(&hEnv, RTENV_DEFAULT);
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| 114 | #else
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| 115 | /* VBoxSDS: Create a change record environment since RTProcCreateEx has to
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| 116 | build the final environment from the profile of the VBoxSDS caller. */
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| 117 | aFlags |= RTPROC_FLAGS_ENV_CHANGE_RECORD;
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| 118 | vrc = RTEnvCreateChangeRecord(&hEnv);
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| 119 | #endif
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| 120 | AssertRCReturn(vrc, vrc);
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| 121 |
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| 122 | /* Apply the specified environment changes (ignoring empty variable names
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| 123 | as RTEnv intentionally does not support that). */
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| 124 | char *pszEnvMutable = strEnvCopy.mutableRaw();
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| 125 | char *pszVar = pszEnvMutable;
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| 126 | for (char *psz = pszEnvMutable; ; ++psz)
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| 127 | {
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| 128 | /** @todo r=bird: Broken escaping rule, how to end a variable with '\\'?
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| 129 | * E.g. TMP=C:\\TEMP\\ */
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| 130 | char const ch = *psz;
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| 131 | if ( (ch == '\n' && (psz == pszEnvMutable || psz[-1] != '\\'))
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| 132 | || ch == '\0')
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| 133 | {
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| 134 | *psz = '\0';
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| 135 | if (*pszVar)
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| 136 | {
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| 137 | char *val = strchr(pszVar, '=');
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| 138 | if (val)
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| 139 | {
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| 140 | *val++ = '\0';
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| 141 | vrc = RTEnvSetEx(hEnv, pszVar, val);
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| 142 | }
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| 143 | else
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| 144 | vrc = RTEnvUnsetEx(hEnv, pszVar);
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| 145 | if (RT_FAILURE(vrc))
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| 146 | {
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| 147 | RTEnvDestroy(hEnv);
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| 148 | return vrc;
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| 149 | }
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| 150 | }
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| 151 | if (!ch)
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| 152 | break;
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| 153 | pszVar = psz + 1;
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| 154 | }
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| 155 | }
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| 156 | }
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| 157 |
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| 158 | #ifdef VBOX_WITH_QTGUI
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| 159 | if ( !aFrontend.compare("gui", Utf8Str::CaseInsensitive)
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| 160 | || !aFrontend.compare("GUI/Qt", Utf8Str::CaseInsensitive)
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| 161 | || !aFrontend.compare("separate", Utf8Str::CaseInsensitive)
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| 162 | || !aFrontend.compare("gui/separate", Utf8Str::CaseInsensitive)
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| 163 | || !aFrontend.compare("GUI/Qt/separate", Utf8Str::CaseInsensitive))
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| 164 | {
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| 165 | # ifdef RT_OS_DARWIN /* Avoid Launch Services confusing this with the selector by using a helper app. */
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| 166 |
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| 167 | # define OSX_APP_NAME "VirtualBoxVM"
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| 168 | # define OSX_APP_PATH_FMT "/Resources/%s.app/Contents/MacOS/VirtualBoxVM"
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| 169 | # define OSX_APP_PATH_WITH_NAME "/Resources/VirtualBoxVM.app/Contents/MacOS/VirtualBoxVM"
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| 170 |
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| 171 | /* Modify the base path so that we don't need to use ".." below. */
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| 172 | RTPathStripTrailingSlash(szPath);
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| 173 | RTPathStripFilename(szPath);
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| 174 | cbBufLeft = strlen(szPath);
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| 175 | pszNamePart = &szPath[cbBufLeft]; Assert(!*pszNamePart);
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| 176 | cbBufLeft = sizeof(szPath) - cbBufLeft;
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| 177 |
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| 178 | if (aFilename.isNotEmpty() && strpbrk(aFilename.c_str(), "./\\:") == NULL)
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| 179 | {
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| 180 | ssize_t cch = RTStrPrintf2(pszNamePart, cbBufLeft, OSX_APP_PATH_FMT, aFilename.c_str());
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| 181 | AssertReturn(cch > 0, VERR_FILENAME_TOO_LONG);
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| 182 | /* there is a race, but people using this deserve the failure */
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| 183 | if (!RTFileExists(szPath))
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| 184 | *pszNamePart = '\0';
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| 185 | }
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| 186 | if (!*pszNamePart)
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| 187 | {
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| 188 | vrc = RTStrCopy(pszNamePart, cbBufLeft, OSX_APP_PATH_WITH_NAME);
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| 189 | AssertRCReturn(vrc, vrc);
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| 190 | }
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| 191 | # else
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| 192 | static const char s_szVirtualBox_exe[] = "VirtualBoxVM" HOSTSUFF_EXE;
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| 193 | vrc = RTStrCopy(pszNamePart, cbBufLeft, s_szVirtualBox_exe);
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| 194 | AssertRCReturn(vrc, vrc);
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| 195 | # endif
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| 196 |
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| 197 | const char *apszArgs[] =
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| 198 | {
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| 199 | szPath,
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| 200 | "--comment", aComment.c_str(),
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| 201 | "--startvm", aNameOrId.c_str(),
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| 202 | "--no-startvm-errormsgbox",
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| 203 | NULL, /* For "--separate". */
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| 204 | NULL, /* For "--sup-startup-log". */
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| 205 | NULL
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| 206 | };
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| 207 | unsigned iArg = 6;
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| 208 | if (fSeparate)
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| 209 | apszArgs[iArg++] = "--separate";
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| 210 | if (aExtraArg.isNotEmpty())
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| 211 | apszArgs[iArg++] = aExtraArg.c_str();
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| 212 |
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| 213 | vrc = RTProcCreateEx(szPath, apszArgs, hEnv, aFlags, NULL, NULL, NULL, NULL, NULL, aExtraData, &aPid);
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| 214 | }
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| 215 | #else /* !VBOX_WITH_QTGUI */
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| 216 | if (0)
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| 217 | ;
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| 218 | #endif /* VBOX_WITH_QTGUI */
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| 219 |
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| 220 | else
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| 221 |
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| 222 | #ifdef VBOX_WITH_VBOXSDL
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| 223 | if ( !aFrontend.compare("sdl", Utf8Str::CaseInsensitive)
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| 224 | || !aFrontend.compare("GUI/SDL", Utf8Str::CaseInsensitive)
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| 225 | || !aFrontend.compare("sdl/separate", Utf8Str::CaseInsensitive)
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| 226 | || !aFrontend.compare("GUI/SDL/separate", Utf8Str::CaseInsensitive))
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| 227 | {
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| 228 | static const char s_szVBoxSDL_exe[] = "VBoxSDL" HOSTSUFF_EXE;
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| 229 | vrc = RTStrCopy(pszNamePart, cbBufLeft, s_szVBoxSDL_exe);
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| 230 | AssertRCReturn(vrc, vrc);
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| 231 |
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| 232 | const char *apszArgs[] =
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| 233 | {
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| 234 | szPath,
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| 235 | "--comment", aComment.c_str(),
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| 236 | "--startvm", aNameOrId.c_str(),
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| 237 | NULL, /* For "--separate". */
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| 238 | NULL, /* For "--sup-startup-log". */
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| 239 | NULL
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| 240 | };
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| 241 | unsigned iArg = 5;
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| 242 | if (fSeparate)
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| 243 | apszArgs[iArg++] = "--separate";
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| 244 | if (aExtraArg.isNotEmpty())
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| 245 | apszArgs[iArg++] = aExtraArg.c_str();
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| 246 |
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| 247 | vrc = RTProcCreateEx(szPath, apszArgs, hEnv, aFlags, NULL, NULL, NULL, NULL, NULL, aExtraData, &aPid);
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| 248 | }
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| 249 | #else /* !VBOX_WITH_VBOXSDL */
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| 250 | if (0)
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| 251 | ;
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| 252 | #endif /* !VBOX_WITH_VBOXSDL */
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| 253 |
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| 254 | else
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| 255 |
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| 256 | #ifdef VBOX_WITH_HEADLESS
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| 257 | if ( !aFrontend.compare("headless", Utf8Str::CaseInsensitive)
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| 258 | || !aFrontend.compare("capture", Utf8Str::CaseInsensitive)
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| 259 | || !aFrontend.compare("vrdp", Utf8Str::CaseInsensitive) /* Deprecated. Same as headless. */
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| 260 | )
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| 261 | {
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| 262 | /* On pre-4.0 the "headless" type was used for passing "--vrdp off" to VBoxHeadless to let it work in OSE,
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| 263 | * which did not contain VRDP server. In VBox 4.0 the remote desktop server (VRDE) is optional,
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| 264 | * and a VM works even if the server has not been installed.
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| 265 | * So in 4.0 the "headless" behavior remains the same for default VBox installations.
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| 266 | * Only if a VRDE has been installed and the VM enables it, the "headless" will work
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| 267 | * differently in 4.0 and 3.x.
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| 268 | */
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| 269 | static const char s_szVBoxHeadless_exe[] = "VBoxHeadless" HOSTSUFF_EXE;
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| 270 | vrc = RTStrCopy(pszNamePart, cbBufLeft, s_szVBoxHeadless_exe);
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| 271 | AssertRCReturn(vrc, vrc);
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| 272 |
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| 273 | const char *apszArgs[] =
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| 274 | {
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| 275 | szPath,
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| 276 | "--comment", aComment.c_str(),
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| 277 | "--startvm", aNameOrId.c_str(),
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| 278 | "--vrde", "config",
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| 279 | NULL, /* For "--capture". */
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| 280 | NULL, /* For "--sup-startup-log". */
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| 281 | NULL
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| 282 | };
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| 283 | unsigned iArg = 7;
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| 284 | if (!aFrontend.compare("capture", Utf8Str::CaseInsensitive))
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| 285 | apszArgs[iArg++] = "--capture";
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| 286 | if (aExtraArg.isNotEmpty())
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| 287 | apszArgs[iArg++] = aExtraArg.c_str();
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| 288 |
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| 289 | # ifdef RT_OS_WINDOWS
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| 290 | aFlags |= RTPROC_FLAGS_NO_WINDOW;
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| 291 | # endif
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| 292 | vrc = RTProcCreateEx(szPath, apszArgs, hEnv, aFlags, NULL, NULL, NULL, NULL, NULL, aExtraData, &aPid);
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| 293 | }
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| 294 | #else /* !VBOX_WITH_HEADLESS */
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| 295 | if (0)
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| 296 | ;
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| 297 | #endif /* !VBOX_WITH_HEADLESS */
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| 298 | else
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| 299 | vrc = VERR_INVALID_PARAMETER;
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| 300 |
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| 301 | RTEnvDestroy(hEnv);
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| 302 |
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| 303 | if (RT_FAILURE(vrc))
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| 304 | return vrc;
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| 305 |
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| 306 | return VINF_SUCCESS;
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| 307 | }
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